Compact Steel Plate Continuous Quenching Machine

The invention belongs to the technical field of quenching machines, specifically relating to a compact steel plate continuous quenching machine.

To enhance the strength of steel plates, quenching technology is one of the important methods. Therefore, quenching technology is widely used in the production process of tempered medium and heavy plates. During the quenching process, the quenching machine sprays a large amount of cooling water onto the steel plate through slit nozzles to achieve cooling of the steel plate.

In existing quenching machines, metal hoses are used to connect the water supply pipeline to the nozzles. The telescopic feature of the metal hoses allows them to adapt to the vertical movement of the nozzles. However, with this method, when the metal hoses are not extended, they need to be extendable for storage. As a result, the metal hoses occupy a significant amount of space, leading to the product requiring a large footprint and reducing the user experience.

To address the issues in the prior art where metal hoses occupy a large amount of space when extendable, resulting in a bulky product and reduced user experience, the invention provides a compact steel plate continuous quenching machine. By enabling the third water supply pipeline assembly to move within the water jacket to adapt to the height of the moving frame, the invention eliminates the need for metal hoses to connect the second nozzle assembly to the second water supply pipeline assembly. This saves space that would otherwise be occupied by extendable metal hoses, making the product more compact, reducing its footprint, and enhancing the user experience. The specific technical solution is as follows:

A compact steel plate continuous quenching machine includes: a load-bearing frame, a support transmission assembly, a water supply mechanism, multiple first water supply pipeline assemblies, a first nozzle assembly, a support frame, a lifting mechanism, a moving frame, a pressing transmission assembly, multiple second water supply pipeline assemblies, multiple water jackets, multiple third water supply pipeline assemblies, and a second nozzle assembly. The support transmission assembly is installed on the load-bearing frame. The water supply mechanism is located on one side of the load-bearing frame. One end of multiple first water supply pipeline assemblies is connected to the water supply mechanism, and the other end is located below the support transmission assembly. The first nozzle assembly is installed at the other end of the first water supply pipeline assembly and is located below the support transmission assembly. The support frame is installed on the load-bearing frame. The lifting mechanism is installed on the support frame. The moving frame is embedded within the support frame and connected to the lifting mechanism, with the moving frame located above the load-bearing frame. The pressing transmission assembly is installed below the moving frame and above the support transmission assembly. One end of multiple second water supply pipeline assemblies is connected to the water supply mechanism, and the other end is installed on the outer side of the support frame, located above the moving frame. The water jacket is a hollow cavity with openings at both ends, and one end of multiple water jackets is connected to the other end of the second water supply pipeline assembly. One end of multiple third water supply pipeline assemblies is embedded within the water jackets, connected to the water jackets, and connected to the moving frame. The second nozzle assembly is installed at the other end of the third water supply pipeline assembly and is located above the pressing transmission assembly.

Additionally, the compact continuous quenching machine provided by the invention may have the following additional technical features:

In the above technical solution, the third water supply pipeline assembly includes: a first water supply pipeline body, a sealing ring, a flexible joint, and a second water supply pipeline body. The first water supply pipeline body is a hollow cavity with openings at both ends, and one end is embedded within the water jacket. The sealing ring is an elastic body, with at least two sealing rings sleeved on the outer side of one end of the first water supply pipeline body and installed within the water jacket. One end of the flexible joint is connected to the other end of the first water supply pipeline body. The second water supply pipeline body is a hollow cavity with openings at both ends, and one end is connected to the other end of the flexible joint. The second nozzle assembly is installed at the other end of the second water supply pipeline body. The second water supply pipeline body is connected to the moving frame.

In the above technical solution, the support transmission assembly includes: a first support base, a first transmission shaft, a first transmission roller, and a first drive mechanism. Multiple first support bases are fixed on both sides of the load-bearing frame, arranged in pairs. Multiple first transmission shafts pass through the first support bases and are rotatably connected to them. The first transmission roller is a hollow cavity with openings at both ends, and the corresponding first transmission shafts are embedded at both ends of the first transmission roller. Multiple first drive mechanisms are installed on one side of the load-bearing frame and connected to the first transmission shafts. The first transmission roller and the first transmission shaft are interference-fitted.

In the above technical solution, the support transmission assembly further includes: a first water deflector and a first sealing sleeve. The first water deflector is installed on the outer wall of the first transmission shaft. The first sealing sleeve is an elastic body, sleeved on the outer side of the first transmission shaft connected to the first drive mechanism, and located between the first support base and the first drive mechanism.

In the above technical solution, the pressing transmission assembly includes: a second support base, a second transmission shaft, a second transmission roller, and a second drive mechanism. Multiple second support bases are fixed on both sides of the load-bearing frame, arranged in pairs. Multiple second transmission shafts pass through the second support bases and are rotatably connected to them. The second transmission roller is a hollow cavity with openings at both ends, and the corresponding second transmission shafts are embedded at both ends of the second transmission roller. Multiple second drive mechanisms are installed on one side of the load-bearing frame, connected to the second transmission shafts, and located above the first drive mechanisms. The second transmission roller and the second transmission shaft are interference-fitted.

In the above technical solution, the pressing transmission assembly further includes: a second water deflector and a second sealing sleeve. The second water deflector is installed on the outer wall of the second transmission shaft. The second sealing sleeve is an elastic body, sleeved on the outer side of the second transmission shaft connected to the second drive mechanism, and located between the second support base and the second drive mechanism.

In the above technical solution, the compact continuous quenching machine includes: tracks, mounting brackets, first guide wheels, and second guide wheels. At least two tracks are installed on the inner walls of the support frame, located on both sides of the moving frame. At least two mounting brackets are fixed on both sides of the moving frame. At least two first guide wheels are rotatably connected to the mounting brackets and in contact with both sides of the tracks. The second guide wheel is rotatably connected to the mounting bracket and in contact with the end face of the track near the moving frame.

In the above technical solution, the lifting mechanism includes: a screw lift, a steering gear, a first synchronizing shaft, a second synchronizing shaft, and a third drive mechanism. The screw lift is equipped with a lifting rod, and four screw lifts are fixed on the top of the support frame, with their lifting rods connected to the moving frame. The steering gear is equipped with an input shaft and an output shaft, and two steering gears are installed on one side of the top of the support frame. The output shafts of the two steering gears are connected to the input ends of the two screw lifts on one side of the support frame. Both ends of the first synchronizing shaft are connected to the input shafts of the two steering gears. One end of the two second synchronizing shafts is connected to the output shafts of the two steering gears, and the other end is connected to the input ends of the two screw lifts on the other side of the support frame. The third drive mechanism is installed on the support frame and connected to the first synchronizing shaft.

In the above technical solution, the lifting mechanism further includes: a first connecting seat, a flexible mechanism, and a second connecting seat. The first connecting seat is equipped with a first connecting groove and is connected to the lifting rod of the screw lift. One end of the flexible mechanism is embedded in the first connecting groove and rotatably connected to the first connecting seat, while the other end is fixed on the moving frame.

In the above technical solution, the flexible mechanism includes: a sleeve, a spring, a limiting cover, a telescopic shaft, a second external thread, and a second connecting seat. The sleeve is a hollow cavity with an opening at one end, and the outer wall of the sleeve is equipped with a first external thread. The sleeve is fixed on the moving frame. The spring is embedded in the sleeve, and one end is connected to the bottom of the sleeve. The limiting cover is a hollow cavity with openings at both ends, and the inner wall is equipped with a first internal thread. The limiting cover is sleeved on the outer side of the sleeve opening. One end of the telescopic shaft is embedded in the sleeve and connected to the other end of the spring, while the other end passes through the limiting cover and is in contact with it. The second external thread is installed on the outer wall of the other end of the telescopic shaft. The second connecting seat is equipped with a connecting hole, and the inner wall of the connecting hole is equipped with a second internal thread. The other end of the telescopic shaft is embedded in the connecting hole, and at least part of the second connecting seat is embedded in the first connecting groove and rotatably connected to the first connecting seat. The first external thread and the first internal thread are matched, and the second external thread and the second internal thread are matched.

Advantages of the present invention are as follows:

The correspondence between the reference numerals and component names inis as follows:

The following describes the invention in detail with reference to specific embodiments and, but the invention is not limited to these embodiments.

A compact steel plate continuous quenching machine, as shown in, includes: a load-bearing frame, a support transmission assembly, a water supply mechanism, multiple first water supply pipeline assemblies, a first nozzle assembly, a support frame, a lifting mechanism, a moving frame, a pressing transmission assembly, multiple second water supply pipeline assemblies, a water jacket, multiple third water supply pipeline assemblies, and a second nozzle assembly. The support transmission assemblyis installed on the load-bearing frame. The water supply mechanismis located on one side of the load-bearing frame. One end of multiple first water supply pipeline assembliesis connected to the water supply mechanism, and the other end is located below the support transmission assembly. The first nozzle assembly is installed at the other end of the first water supply pipeline assemblyand is located below the support transmission assembly. The support frameis installed on the load-bearing frame. The lifting mechanismis installed on the support frame. The moving frameis embedded within the support frameand connected to the lifting mechanism, with the moving framelocated above the load-bearing frame. The pressing transmission assemblyis installed below the moving frameand above the support transmission assembly. One end of multiple second water supply pipeline assembliesis connected to the water supply mechanism, and the other end is installed on the outer side of the support frame, located above the moving frame. The water jacketis a hollow cavity with openings at both ends, and one end of multiple water jacketsis connected to the other end of the second water supply pipeline assembly. One end of multiple third water supply pipeline assembliesis embedded within the water jackets, connected to the water jackets, and connected to the moving frame. The second nozzle assembly is installed at the other end of the third water supply pipeline assemblyand is located above the pressing transmission assembly.

By installing the support transmission assemblyon the load-bearing frame, the load-bearing framesupports the support transmission assembly, enabling it to move the steel plate placed on it. The water supply mechanism, located on one side of the load-bearing frame, connects to multiple first water supply pipeline assemblies, allowing water to flow into them. The first nozzle assembly, installed at the other end of the first water supply pipeline assemblyand located below the support transmission assembly, sprays water onto the bottom of the steel plate, achieving rapid cooling and quenching. The support frame, installed on the load-bearing frame, supports the lifting mechanism. The moving frame, embedded within the support frameand connected to the lifting mechanism, moves vertically within the support frame, adjusting its distance from the load-bearing frame. The pressing transmission assembly, installed below the moving frameand above the support transmission assembly, moves vertically with the moving frame, ensuring it contacts the top of the steel plate. This prevents slippage and stabilizes the steel plate's movement. The second water supply pipeline assembly, connected to the water supply mechanismand installed on the outer side of the support frame, supplies water to the water jacket. The third water supply pipeline assembly, embedded within the water jacketand connected to the moving frame, moves vertically within the water jacket, adjusting its length outside the water jacket. The second nozzle assembly, installed at the other end of the third water supply pipeline assemblyand located above the pressing transmission assembly, sprays water onto the steel plate, achieving the quenching effect.

In practical use, the steel plate is placed on the support transmission assembly. The lifting mechanismis activated to lower the moving frameand the pressing transmission assemblyuntil the pressing transmission assemblycontacts the steel plate. As the moving framemoves downward, the third water supply pipeline assembly, connected to the moving frame, also moves downward within the water jacket, increasing its length outside the water jacketwhile maintaining a connection with the water jacket. The water supply mechanismis then activated, supplying water to the first nozzle assembly through the first water supply pipeline assembly, which sprays water onto the steel plate. Simultaneously, water flows through the second water supply pipeline assembly, the water jacket, and the third water supply pipeline assemblyto the second nozzle assembly, which also sprays water onto the steel plate. The support transmission assemblyand the pressing transmission assemblyare activated to move the steel plate, allowing the first and second nozzle assemblies to spray water onto different parts of the steel plate, achieving the quenching effect.

With this structure, the third water supply pipeline assemblymoves within the water jacket, connected to the moving frame, allowing the moving frameto drive the third water supply pipeline assemblyvertically within the water jacket. This ensures the third water supply pipeline assemblyremains connected to the water jacketand the second water supply pipeline assemblywhile adjusting its length outside the water jacketto adapt to the height of the moving frame. This shortens the distance between the second nozzle assembly and the steel plate, ensuring the second nozzle assembly sprays water onto the steel plate, avoiding water waste. By enabling the third water supply pipeline assemblyto move within the water jacket, the invention saves space occupied by extendable metal hoses, making the product more compact, reducing its footprint, and enhancing the user experience. It also avoids the reduction in the service life of metal hoses due to repeated folding, improving product quality and lifespan while reducing costs. Additionally, by directly embedding the third water supply pipeline assemblyinto the water jacket, the installation difficulty is reduced compared to connecting metal hoses to the second water supply pipeline assembly, thereby improving assembly efficiency.

Specifically, the sealing ring is made of rubber or silicone.

In the embodiment of the invention, as shown in, the third water supply pipeline assemblyincludes: a first water supply pipeline body, a sealing ring, a flexible joint, and a second water supply pipeline body. The first water supply pipeline bodyis a hollow cavity with openings at both ends, and one end is embedded within the water jacket. The sealing ring is an elastic body, with at least two sealing rings sleeved on the outer side of one end of the first water supply pipeline bodyand installed within the water jacket. One end of the flexible jointis connected to the other end of the first water supply pipeline body. The second water supply pipeline bodyis a hollow cavity with openings at both ends, and one end is connected to the other end of the flexible joint. The second nozzle assembly is installed at the other end of the second water supply pipeline body. The second water supply pipeline bodyis connected to the moving frame.

By embedding one end of the first water supply pipeline bodywithin the water jacket, the first water supply pipeline bodycan move within the water jacket. By sleeving at least two sealing rings on the outer side of one end of the first water supply pipeline bodyand installing them within the water jacket, the sealing rings seal the gap between the first water supply pipeline bodyand the water jacket, preventing water from leaking out and avoiding water waste. By connecting one end of the flexible jointto the first water supply pipeline bodyand the other end to the second water supply pipeline body, and connecting the second water supply pipeline bodyto the moving frame, the moving frameand the second water supply pipeline bodycan move synchronously. The flexible jointallows for elastic connection between the first and second water supply pipeline bodies, compensating for any horizontal displacement of the moving frameand preventing damage to the water jacketcaused by rigid connections, thereby improving product quality.

Specifically, the flexible joint is a rubber joint, bellows joint, or similar.

In the embodiment of the invention, as shown in, the support transmission assemblyincludes: a first support base, a first transmission shaft, a first transmission roller, and a first drive mechanism. Multiple first support basesare fixed on both sides of the load-bearing frame, arranged in pairs. Multiple first transmission shaftspass through the first support basesand are rotatably connected to them. The first transmission rolleris a hollow cavity with openings at both ends, and the corresponding first transmission shaftsare embedded at both ends of the first transmission roller. Multiple first drive mechanismsare installed on one side of the load-bearing frameand connected to the first transmission shafts. The first transmission rollerand the first transmission shaftare interference-fitted.

By embedding the corresponding first transmission shaftsat both ends of the first transmission rollerand interference-fitting them, the first transmission shaftsand the first transmission rollerrotate synchronously. The first support bases, fixed on both sides of the load-bearing frame, support the first transmission shaftsand the first transmission roller, allowing the first transmission rollerto rotate between the first support basesand move the steel plate. The first drive mechanism, installed on one side of the load-bearing frameand connected to the first transmission shaft, directly drives the first transmission shaftand the first transmission roller.

With this structure, the first drive mechanismdirectly drives the first transmission shaftand the first transmission roller, eliminating the need for couplings, reducing product costs, and improving transmission efficiency while avoiding energy loss. This achieves energy savings and reduces product operating costs. Additionally, installing the first drive mechanismon one side of the load-bearing frame reduces the product's footprint, enhancing its compactness.

In the embodiment of the invention, as shown in, the support transmission assemblyfurther includes: a first water deflectorand a first sealing sleeve. The first water deflectoris installed on the outer wall of the first transmission shaft. The first sealing sleeveis an elastic body, sleeved on the outer side of the first transmission shaftconnected to the first drive mechanism, and located between the first support baseand the first drive mechanism.

By installing the first water deflectoron the outer wall of the first transmission shaft, water falling on the shaft is directed into the deflector, preventing it from entering the first support baseand protecting the bearings inside. The first sealing sleeve, installed between the first support baseand the first drive mechanism, seals the first transmission shaft, preventing water from entering the support base and drive mechanism, thereby improving the product's waterproofing.

Specifically, when water enters the first water deflectorand the first transmission shaftrotates, the water is thrown out by centrifugal force, allowing the first water deflectorto continuously block water.

In the embodiment of the invention, as shown in, the pressing transmission assemblyincludes: a second support base, a second transmission shaft, a second transmission roller, and a second drive mechanism. Multiple second support basesare fixed on both sides of the load-bearing frame, arranged in pairs. Multiple second transmission shaftspass through the second support basesand are rotatably connected to them. The second transmission rolleris a hollow cavity with openings at both ends, and the corresponding second transmission shaftsare embedded at both ends of the second transmission roller. Multiple second drive mechanismsare installed on one side of the load-bearing frame, connected to the second transmission shafts, and located above the first drive mechanisms. The second transmission rollerand the second transmission shaftare interference-fitted.

By embedding the corresponding second transmission shaftsat both ends of the second transmission rollerand interference-fitting them, the second transmission shaftsand the second transmission rollerrotate synchronously. The second support bases, fixed on both sides of the load-bearing frame, support the second transmission shaftsand the second transmission roller, allowing the second transmission rollerto rotate between the second support basesand move the steel plate. The second drive mechanism, installed on one side of the load-bearing frameand connected to the second transmission shaft, directly drives the second transmission shaftand the second transmission roller.

With this structure, the second drive mechanismdirectly drives the second transmission shaftand the second transmission roller, eliminating the need for couplings, reducing product costs, and improving transmission efficiency while avoiding energy loss. This achieves energy savings and reduces product operating costs. Additionally, installing the second drive mechanismon one side of the load-bearing frame reduces the product's footprint, enhancing its compactness.

In the embodiment of the invention, as shown in, the pressing transmission assemblyfurther includes: a second water deflectorand a second sealing sleeve. The second water deflectoris installed on the outer wall of the second transmission shaft. The second sealing sleeveis an elastic body, sleeved on the outer side of the second transmission shaftconnected to the second drive mechanism, and located between the second support baseand the second drive mechanism.

By installing the second water deflectoron the outer wall of the second transmission shaft, water falling on the shaft is directed into the deflector, preventing it from entering the second support baseand protecting the bearings inside. The second sealing sleeve, installed between the second support baseand the second drive mechanism, seals the second transmission shaft, preventing water from entering the support base and drive mechanism, thereby improving the product's waterproofing.

Specifically, when water enters the second water deflectorand the second transmission shaftrotates, the water is thrown out by centrifugal force, allowing the second water deflectorto continuously block water.

In the embodiment of the invention, as shown in, the compact continuous quenching machine includes: tracks, mounting brackets, first guide wheels, and second guide wheels. At least two tracksare installed on the inner walls of the support frame, located on both sides of the moving frame. At least two mounting bracketsare fixed on both sides of the moving frame. At least two first guide wheelsare rotatably connected to the mounting bracketsand in contact with both sides of the tracks. The second guide wheelis rotatably connected to the mounting bracketand in contact with the end face of the tracknear the moving frame.

By installing at least two trackson the inner walls of the support frameand positioning them on both sides of the moving frame, the support framesupports the tracks. By fixing at least two mounting bracketson both sides of the moving frameand rotatably connecting at least two first guide wheelsto the mounting brackets, the first guide wheelsrotate relative to the mounting brackets. When the moving framemoves vertically, the first guide wheelsroll along the sides of the tracks. By rotatably connecting the second guide wheelto the mounting bracketand positioning it in contact with the end face of the tracknear the moving frame, the second guide wheelrotates relative to the mounting bracket. When the moving framemoves vertically, the second guide wheelrolls along the end face of the track.

With this structure, the mounting bracketsdrive the first guide wheelsalong the sides of the tracksand the second guide wheelalong the end face of the tracks, guiding and stabilizing the moving frameduring vertical movement, preventing deviations and improving stability.

In the embodiment of the invention, as shown in, the lifting mechanismincludes: a screw lift, a steering gear, a first synchronizing shaft, a second synchronizing shaft, and a third drive mechanism. The screw liftis equipped with a lifting rod, and four screw liftsare fixed on the top of the support frame, with their lifting rods connected to the moving frame. The steering gearis equipped with an input shaft and an output shaft, and two steering gearsare installed on one side of the top of the support frame. The output shafts of the two steering gearsare connected to the input ends of the two screw liftson one side of the support frame. Both ends of the first synchronizing shaftare connected to the input shafts of the two steering gears. One end of the two second synchronizing shaftsis connected to the output shafts of the two steering gears, and the other end is connected to the input ends of the two screw liftson the other side of the support frame. The third drive mechanismis installed on the support frameand connected to the first synchronizing shaft.

By fixing four screw liftson the top of the support frameand connecting their lifting rods to the moving frame, the screw liftsdrive the moving framevertically. By installing two steering gearson one side of the top of the support frameand connecting their output shafts to the input ends of the two screw liftson one side of the support frame, the steering gearsdrive the screw liftswhen activated. By connecting one end of the two second synchronizing shaftsto the output shafts of the two steering gearsand the other end to the input ends of the two screw liftson the other side of the support frame, the steering gearsdrive the other two screw liftsvia the second synchronizing shafts. By installing the third drive mechanismon the support frameand connecting it to the first synchronizing shaft, the third drive mechanismdrives the first synchronizing shaft, activating the steering gears.

With this structure, the third drive mechanismdrives the first synchronizing shaft, which in turn drives the two steering gears. The output shafts of the steering gearsare directly connected to the input ends of the two screw liftsand connected to the other two screw liftsvia the second synchronizing shafts. This allows one drive mechanism (the third drive mechanism) to drive four screw liftssimultaneously, reducing production costs and ensuring synchronized operation of the screw lifts, thereby improving the stability of the moving frameduring vertical movement.

In the embodiment of the invention, as shown in, the lifting mechanismfurther includes: a first connecting seat, a flexible mechanism, and a second connecting seat. The first connecting seatis equipped with a first connecting groove and is connected to the lifting rod of the screw lift. One end of the flexible mechanismis embedded in the first connecting groove and rotatably connected to the first connecting seat, while the other end is fixed on the moving frame.

By connecting the first connecting seatto the lifting rod of the screw lift, the screw liftdrives the first connecting seatvertically. By embedding one end of the flexible mechanismin the first connecting groove and rotatably connecting it to the first connecting seat, the flexible mechanismcan rotate relative to the lifting rod of the screw lift. By fixing the other end of the flexible mechanismto the moving frame, the flexible mechanismdrives the moving framevertically, allowing the screw liftto move the moving frame.

With this structure, the flexible mechanismcan rotate relative to the lifting rod of the screw lift. When the lifting rod drives the moving framevertically and the pressing transmission assemblycontacts the steel plate, the flexible mechanismrotates relative to the lifting rod, preventing the force exerted by the steel plate on the pressing transmission assemblyfrom directly acting on the flexible mechanism, thereby preventing damage to the flexible mechanismand improving product quality.

In the embodiment of the invention, as shown in, the flexible mechanismincludes: a sleeve, a spring, a limiting cover, a telescopic shaft, a second external thread, and a second connecting seat. The sleeveis a hollow cavity with an opening at one end, and the outer wall of the sleeveis equipped with a first external thread. The sleeveis fixed on the moving frame. The springis embedded in the sleeve, and one end is connected to the bottom of the sleeve. The limiting coveris a hollow cavity with openings at both ends, and the inner wall is equipped with a first internal thread. The limiting coveris sleeved on the outer side of the sleeve opening. One end of the telescopic shaftis embedded in the sleeveand connected to the other end of the spring, while the other end passes through the limiting coverand is in contact with it. The second external thread is installed on the outer wall of the other end of the telescopic shaft. The second connecting seatis equipped with a connecting hole, and the inner wall of the connecting hole is equipped with a second internal thread. The other end of the telescopic shaftis embedded in the connecting hole, and at least part of the second connecting seatis embedded in the first connecting groove and rotatably connected to the first connecting seat. The first external thread and the first internal thread are matched, and the second external thread and the second internal thread are matched.

By fixing the sleeveto the moving frame, the sleevemoves vertically with the moving frame. By embedding the springin the sleeveand connecting one end to the bottom of the sleeveand the other end to the telescopic shaft, the sleevesupports the telescopic shaftvia the spring. By sleeving the limiting coveron the outer side of the sleeve opening, the limiting coveris threaded to the sleeve, sealing the sleeve opening. The limiting covercontacts the telescopic shaft, preventing it from moving out of the sleeve. By embedding the other end of the telescopic shaftin the connecting hole of the second connecting seat, the telescopic shaftis threaded to the second connecting seat. By embedding the second connecting seatin the first connecting groove and rotatably connecting it to the first connecting seat, the first connecting seatdrives the second connecting seatvertically.

With this structure, when the lifting rod drives the moving framevertically and the pressing transmission assemblycontacts the steel plate, the springabsorbs the force exerted on the moving frame, further preventing damage to the flexible mechanismand extending the product's lifespan.