阅读说明：本技术 一种大容量的皮具加硫机 (Large-capacity leather vulcanizing machine ) 是由 何祥 梁耀桂 何万月 于 2020-12-18 设计创作，主要内容包括：本发明公开了一种大容量的皮具加硫机,包括底板、密封罩、真空发生器、真空升降机构、固定架、料框限位机构和挂钩,所述固定架底部还设有料框挂钩和料框限位杆；所述料框限位杆上设有安全感应机构,所述安全感应机构用于感应所述料框是否安全平稳地升降,所述挂钩设于所述升降梁上,包括主钩体、料框固定条和自动脱钩结构,所述主钩体用于将料框通过其钩合部勾起,所述料框固定条与料框的一面接触,配合主钩体将料框固定,所述自动脱钩结构用于在料框升降到位后使料框与挂钩脱离。采用本发明,可以对料框进行稳定的升降操作,并避免对料框和底板的移动产生阻挡,便于料框和底板的循环,从而提高生产效率。(The invention discloses a large-capacity leather vulcanizing machine which comprises a bottom plate, a sealing cover, a vacuum generator, a vacuum lifting mechanism, a fixing frame, a material frame limiting mechanism and a hook, wherein the bottom of the fixing frame is also provided with a material frame hook and a material frame limiting rod; be equipped with the safety induction mechanism on the material frame gag lever post, the safety induction mechanism is used for responding to whether the material frame goes up and down safely and steadily, the couple is located on the lifing beam, including main coupler body, material frame fixed strip and automatic unhook structure, main coupler body is used for colluding the material frame through its portion of colluding, the material frame fixed strip contacts with the one side of material frame, and the cooperation main coupler body will expect that the frame is fixed, automatic unhook structure is used for making the material frame break away from with the couple after the material frame goes up and down to target in place. By adopting the lifting device, the material frame can be stably lifted, the movement of the material frame and the bottom plate is prevented from being blocked, the circulation of the material frame and the bottom plate is facilitated, and the production efficiency is improved.)

1. A large-capacity leather vulcanizing machine is characterized by comprising a bottom plate, a sealing cover, a vacuum generator, a vacuum lifting mechanism and a fixing frame, wherein the fixing frame is fixed on the rear side of the sealing cover; the vacuum generator is arranged on the fixed frame, is connected with the sealing cover through a high-pressure air pipe and is used for pumping out air in the sealing cover;

the bottom of the fixed frame is also provided with a material frame hook and a material frame limiting rod;

the high-capacity leather vulcanizing machine further comprises a material frame limiting mechanism and a hook, wherein the material frame limiting mechanism comprises vertically arranged guide slide rails and a lifting beam arranged between the guide slide rails oppositely arranged, and the end part of the lifting beam is provided with a pulley matched with the guide slide rails;

the hook is arranged on the lifting beam and comprises a main hook body, a material frame fixing strip and an automatic unhooking structure, wherein the main hook body is used for hooking the material frame through a hooking part of the main hook body, the material frame fixing strip is in contact with one surface of the material frame and is matched with the main hook body to fix the material frame, and the automatic unhooking structure is used for enabling the material frame to be separated from the hook after the material frame is lifted in place.

2. The high capacity leather curing machine of claim 1, wherein said vacuum lift mechanism includes a horizontal lift frame and a vacuum lift drive mechanism; the horizontal lifting frame comprises a horizontal sliding rail, a first hinged frame, a second hinged frame, a first connecting rod and a second connecting rod, and the first hinged frame and the second hinged frame are formed by hinging two connecting rods;

the vacuum lifting driving mechanism comprises a vacuum lifting chain and a vacuum lifting motor, the vacuum lifting chain is connected with the sealing cover, and the vacuum lifting motor can drive the vacuum lifting chain to rotate so as to drive the sealing cover to lift.

3. The high capacity leather curing machine of claim 3, wherein the upper portions of said first and second articulated frames are connected by said first and second connecting rods; and one side of the lower ends of the first hinge frame and the second hinge frame is provided with a first pulley, and the other side of the lower ends of the first hinge frame and the second hinge frame is hinged with the horizontal sliding rail.

4. The high capacity leather curing machine according to claim 3, wherein the fixed frame is provided with a chute, the first link is provided with a second pulley engaged with the chute, and the first link is capable of sliding in the chute;

the lower ends of the first hinge frame and the second hinge frame are close to one side of the second connecting rod and hinged with the horizontal sliding rail.

5. The high-capacity leather curing machine according to claim 1, wherein the bottom of the bottom plate is provided with bottom plate pulleys and bottom plate slide rails, the bottom plate pulleys can slide on the bottom plate slide rails, the fixing frame is further provided with a bottom driving mechanism, the bottom plate is connected with a bottom plate driving mechanism, and the bottom plate driving mechanism can drive the bottom plate to move back and forth.

6. The high capacity leather curing machine of claim 6, wherein the bottom plate slide rail is provided with a lifting mechanism for lifting the material frame to separate the material frame from the bottom plate.

7. The high-capacity leather vulcanizing machine according to claim 1, further comprising a material frame lifting power mechanism for driving the hook to lift under the limiting action of the material frame limiting mechanism, wherein the material frame lifting power mechanism comprises a material frame lifting motor and a material frame lifting chain, one end of the material frame lifting chain is connected with the material frame lifting motor, and the other end of the material frame lifting chain is connected with the lifting beam.

8. The high-capacity leather curing machine according to claim 1, wherein the automatic unhooking structure is a projection provided on the upper portion of the main hook body, the projection is located right above the hanging point of the main hook body, and the lower surface of the projection is an inclined surface; when the hooking part of the material frame is contacted with the material frame, the inclined plane pushes the main hook body to the material frame fixing strip.

9. The high capacity leather curing machine of claim 1, wherein said frame attachment bar is fixedly attached to said lifting beam; the main hook body is hinged to the material frame fixing strip and can swing relative to the material frame fixing strip, and the lowest point of the material frame fixing strip is lower than a hanging point of the main hook body.

Technical Field

The invention relates to a vulcanizing machine, in particular to a large-capacity leather vulcanizing machine.

Background

In the prior art, leather products are generally shaped by adopting a leather product vulcanizing machine, and the leather product vulcanizing machine needs to soften the leather products by heating. In order to save space and improve efficiency, part of the vulcanizing machines adopt a multi-layer design, and material frames provided with leather products are hoisted to work stations with different heights through a lifting mechanism.

A material frame lifting power mechanism of the existing leather vulcanizing machine is connected with a hook through a steel wire rope, and then the steel wire rope is pulled through a winch, and a material frame is hooked by the hook to lift. The method has simple structure, but the material frame is easy to shake in the lifting process. And the lifting needs to be manually unhooked after being in place, so that more manpower is consumed, and the production cost is increased. And the existing sealing cover is arranged independently, and a vacuum generator connected with the sealing cover occupies a large space, so that the sealing cover is not beneficial to the cyclic movement of the material frame. The existing large-capacity leather vulcanizing machine continues to adopt the design of a single-layer vulcanizing machine, and the bottom plate can not move circularly, so that the working efficiency requirement of a multilayer vulcanizing machine can not be met. In addition, in order to drive the sealing cover to lift, the existing method pulls a steel wire rope through a winch to pull the sealing cover to lift, the method is simple in structure, but the sealing cover is easy to shake in the lifting process, the sealing cover and the bottom plate are prone to dislocation, the sealing performance is reduced, and the vulcanizing effect is affected.

Disclosure of Invention

The invention aims to solve the technical problem of providing a large-capacity leather vulcanizing machine which can stably lift a material frame, avoid blocking the movement of the material frame and a bottom plate, facilitate the circulation of the material frame and the bottom plate and further improve the production efficiency.

In order to solve the technical problem, the invention provides a large-capacity leather vulcanizing machine which comprises a bottom plate, a sealing cover, a vacuum generator, a vacuum lifting mechanism and a fixing frame, wherein the fixing frame is fixed on the rear side of the sealing cover; the vacuum generator is connected with the sealing cover through a high-pressure air pipe and is used for pumping out air in the sealing cover;

the bottom of the fixed frame is also provided with a material frame hook and a material frame limiting rod;

the high-capacity leather vulcanizing machine further comprises a material frame limiting mechanism and a hook, wherein the material frame limiting mechanism comprises guide slide rails which are vertically arranged, and a lifting beam which is arranged between the guide slide rails which are oppositely arranged, and the end part of the lifting beam is provided with a pulley matched with the guide slide rails;

the hook is arranged on the lifting beam and comprises a main hook body, a material frame fixing strip and an automatic unhooking structure, wherein the main hook body is used for hooking the material frame through a hooking part of the main hook body, the material frame fixing strip is in contact with one surface of the material frame and is matched with the main hook body to fix the material frame, and the automatic unhooking structure is used for enabling the material frame to be separated from the hook after the material frame is lifted in place.

As an improvement of the scheme, the vacuum lifting mechanism comprises a horizontal lifting frame and a vacuum lifting driving mechanism; the horizontal lifting frame comprises a horizontal sliding rail, a first hinged frame, a second hinged frame, a first connecting rod and a second connecting rod, and the first hinged frame and the second hinged frame are formed by hinging two connecting rods.

The vacuum lifting driving mechanism comprises a vacuum lifting chain and a vacuum lifting motor, the vacuum lifting chain is connected with the sealing cover, and the vacuum lifting motor can drive the vacuum lifting chain to rotate so as to drive the sealing cover to lift.

As a modification of the above, the upper parts of the first and second hinge brackets are connected by the first and second connecting rods; and one side of the lower ends of the first hinge frame and the second hinge frame is provided with a first pulley, and the other side of the lower ends of the first hinge frame and the second hinge frame is hinged with the horizontal sliding rail.

As an improvement of the scheme, the fixing frame is provided with a sliding groove, the first connecting rod is provided with a second pulley matched with the sliding groove, and the first connecting rod can slide in the sliding groove.

The lower ends of the first hinge frame and the second hinge frame are close to one side of the second connecting rod and hinged with the horizontal sliding rail.

As an improvement of the scheme, the bottom of the bottom plate is provided with a bottom plate pulley and a bottom plate slide rail, the bottom plate pulley can slide on the bottom plate slide rail, the bottom plate is connected with a bottom plate driving mechanism, and the bottom plate driving motor can drive the bottom plate driving chain to rotate so as to drive the bottom plate to move forwards and backwards.

As an improvement of the above scheme, a lifting mechanism is arranged on the bottom plate slide rail and used for lifting the material frame, so that the material frame is separated from the bottom plate.

As an improvement of the above scheme, the high-capacity leather vulcanizing machine further comprises a material frame lifting power mechanism, the material frame lifting power mechanism is used for driving the hook to lift under the limiting effect of the material frame limiting mechanism, the material frame lifting power mechanism comprises a material frame lifting motor and a material frame lifting chain, one end of the material frame lifting chain is connected with the material frame lifting motor, and the other end of the material frame lifting chain is connected with the lifting beam.

As an improvement of the above scheme, the automatic unhooking structure is a projection arranged on the upper part of the main hook body, the projection is positioned right above a hanging point of the main hook body, and the lower surface of the projection is an inclined surface; when the hooking part of the material frame is contacted with the material frame, the inclined plane pushes the main hook body to the material frame fixing strip.

As an improvement of the scheme, the material frame fixing strip is fixedly connected with the lifting beam; the main hook body is hinged to the material frame fixing strip and can swing relative to the material frame fixing strip, and the lowest point of the material frame fixing strip is lower than a hanging point of the main hook body.

The implementation of the invention has the following beneficial effects:

1. the invention adopts the horizontal lifting frame as the lifting material frame limiting mechanism of the sealing cover, the fixing frame and the vacuum generator, limits the lifting of the sealing cover in the vertical direction through the movement of the connecting rod, and keeps the stress balance of the sealing cover and the vacuum generator, so that the lifting of the sealing cover is more stable, the matching with the bottom plate is more accurate, and the efficiency of the vacuum vulcanizing process is improved.

2. The vacuum generator is fixed with the sealing cover through the fixing frame, so that the vacuum generator is strong in integrity, compact in structure, small in occupied space and convenient to integrally lift, and the material frame cannot be blocked after being lifted, so that the material frame can be circularly moved conveniently, and the working efficiency is improved.

3. The bottom plate is provided with the bottom plate pulley, and the bottom plate pulley can slide on the bottom plate slide rail, so that the bottom plate can be switched among the feeding station, the vacuum vulcanizing station and the discharging station, the circular movement of the bottom plate is facilitated, and the working efficiency is improved.

4. The material frame limiting mechanism comprises guide slide rails which are vertically arranged and a lifting beam which is arranged between the guide slide rails which are oppositely arranged, a hook is arranged on the lifting beam, the material frame is lifted along with the hook, the lifting beam is lifted stably, and the shaking amplitude is small.

5. According to the invention, the hook is quickly connected with the material frame, the material frame is hooked by the main hook body, the material frame fixing strip is abutted against one side surface of the material frame, the material frame and the hook are completely fixed by limiting the movement of one surface and one point of the material frame, and the lifting reliability is improved. And the main hook body can be automatically separated from the hooking part of the material frame, manual intervention is not needed, and safety and high efficiency are realized.

Drawings

FIG. 1 is a schematic view of the large capacity leather curing machine of the present invention;

FIG. 2 is a schematic structural view of the large-capacity leather curing machine of the present invention with the outer frame removed;

FIG. 3 is a partial view of A in FIG. 2;

FIG. 4 is a schematic view of the rear view of the large capacity leather curing press of the present invention;

fig. 5 is a schematic structural view of the fixing frame of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.

Referring to fig. 1, the embodiment of the invention discloses a large-capacity leather vulcanizing machine, which comprises a bottom plate 1, a sealing cover 3, a vacuum generator 9, a vacuum lifting mechanism 4 and a fixing frame 5, wherein the bottom plate 1 is used for supporting a material frame 01 and the sealing cover 3, the vacuum generator 9 is used for vacuumizing the sealing cover 3, and the fixing frame 5 is used for fixing the vacuum generator 9 and the sealing cover 3. The fixing frame 5 is fixed at the rear side of the sealing cover 3; the vacuum generator 9 is connected to the sealing cover 3 through a high pressure air pipe for pumping out air in the sealing cover 3. The bottom of the sealing cover 3 is provided with a sealing gasket 31, when the sealing cover 3 descends to be attached to the bottom plate 1, the sealing gasket 31 can enable the inside of the sealing cover 3 to form a sealing space, so that the vacuum generator 9 can smoothly vacuumize, and the vacuumizing efficiency is improved. The vacuum generator 9 is provided on the fixing frame 5, and thus can be lifted in synchronization with the hermetic cap 3. The bottom of the fixed mount 5 is also provided with a material frame hook 517 and a material frame limiting rod 52, which are used for lifting the material frame 01 and ensuring the lifting stability of the material frame 01. Be equipped with safe induction mechanism 53 on the material frame gag lever post 52, safe induction mechanism 53 is used for responding to whether material frame 01 goes up and down safely steadily. The sealing cover 3, the vacuum generator 9, the vacuum lifting mechanism 4 and the fixing frame 5 are positioned above the vacuum vulcanizing station and the discharging station.

According to the embodiment of the invention, the horizontal lifting frame 41 is used as the lifting material frame 01 limiting mechanism 6 of the sealing cover 3, the fixing frame 5 and the vacuum generator 9, the lifting of the sealing cover 3 in the vertical direction is limited through the movement of the connecting rod, the stress balance of the sealing cover 3 and the vacuum generator 9 is kept, the lifting of the sealing cover 3 is more stable, the matching with the bottom plate 1 is more accurate, and the efficiency of a vacuum vulcanization process can be improved. And vacuum generator 9 passes through mount 5 and is fixed with sealed cowling 3, and is integrative strong, compact structure, and occupation space is few, the whole lifting of being convenient for, can not produce the removal of material frame 01 after the lifting and block to the circulation removal of the material frame 01 of being convenient for makes work efficiency promote.

Referring to fig. 3, the large-capacity leather curing machine in the embodiment of the invention further comprises a material frame 01 limiting mechanism 6 and a hook 7, wherein the hook 7 is matched with a hooking part of the material frame 01 to lift the material frame 01. The material frame limiting mechanism 6 comprises a guide slide rail 61 which is vertically arranged, and a lifting beam 62 which is arranged between the guide slide rails 61 which are oppositely arranged, wherein the lifting beam 62 spans on two sides of the material frame 01, so that the lifting beam 62 can stably drive the material frame 01 and has higher strength. The hook 7 is arranged on the lifting beam 62 and comprises a main hook body 71, a material frame fixing strip 72 and an automatic unhooking structure 73, wherein the main hook body 71 is used for hooking the material frame 01 through a hooking part of the main hook body, the material frame fixing strip 72 is in contact with one surface of the material frame 01 and is matched with the main hook body 71 to fix the material frame 01, and the automatic unhooking structure 73 is used for enabling the material frame 01 to be separated from the hook 7 after the material frame 01 is lifted in place. The material frame 01 limiting mechanism 6 and the hook 7 are positioned above the feeding station.

The material frame 01 limiting mechanism 6 is arranged in the embodiment of the invention, the material frame 01 limiting mechanism 6 comprises vertically arranged guide slide rails 61 and a lifting beam 62 arranged between the oppositely arranged guide slide rails 61, a hook 7 is arranged on the lifting beam 62, the material frame 01 is lifted along with the hook 7, the lifting beam 62 is lifted stably, and the shaking amplitude is small. And through couple 7 and material frame 01 high-speed joint, main hook 71 catches on material frame 01, and material frame fixed strip 72 and a side butt of material frame 01 simultaneously through the removal of a restriction material frame 01 one face and a point, will expect that frame 01 and couple 7 are fixed completely, promote the lift reliability. And the main hook body 71 can be automatically separated from the hooking part of the material frame 01, manual intervention is not needed, and safety and high efficiency are achieved.

Referring to fig. 5, in order to ensure that the material frame 01 on the vacuum vulcanizing station and the discharging station can be smoothly hooked up and descended by the vacuum lifting mechanism 4, the vertical part of the material frame limiting rod 52 is abutted against the material frame 01, so that the material frame 01 can be limited to be kept vertical and stable when lifted, and the safety induction mechanism 53 on the material frame limiting rod 52 comprises a swing rod 531 arranged in the material frame limiting rod 52, wherein the middle part of the swing rod 531 is hinged with the middle part of the material frame limiting rod 52, so that the swing rod 531 can swing around a hinge point. The pendulum rod 531 lower extreme has detection end 532, and detection end 532 outwards protrudes from the one side of material frame gag lever post 52 with the contact of material frame 01, works as detection end 532 and the edge butt of material frame 01, and under the effect of material frame 01 reaction force, pendulum rod 531 can swing, and one side at the upper end top of pendulum rod 531 is equipped with inductive switch 533, can respond to the swing distance of pendulum rod 531 to discernment and the stationarity of guaranteeing the rising or the decline of material frame 01.

The vacuum lifting mechanism 4 comprises a horizontal lifting frame 41 and a vacuum lifting driving mechanism 42, the horizontal lifting frame 41 comprises a horizontal sliding rail 411, a first hinged frame 412, a second hinged frame 413, a first connecting rod 414 and a second connecting rod 415, the first hinged frame 412 and the second hinged frame 413 are formed by hinging two connecting rods, preferably, the hinged point of the first hinged frame 412 and the second hinged frame 413 is positioned in the middle of the two connecting rods, so that the two connecting rods form a 'fork-shaped shear' structure, and the two connecting rods respectively have one end capable of lifting synchronously.

Referring to fig. 2 and 4, the first hinge frame 412 and the second hinge frame 413 are respectively located at two sides of the large-capacity leather curing machine, the upper parts of the first hinge frame 412 and the second hinge frame 413 are connected through a first connecting rod 414 and a second connecting rod 415, and the first connecting rod 414 and the second connecting rod 415 are respectively located at one end of the two connecting rods of the first hinge frame 412 and the second hinge frame 413, which can be lifted synchronously, so that the first connecting rod 414 and the second connecting rod 415 can be lifted synchronously. The first pulley 416 is disposed on one side of the lower end of the first hinge frame 412 and the second hinge frame 413, and the other side of the lower end of the first hinge frame 412 and the second hinge frame 413 is hinged to the horizontal sliding rail 411, when the first connecting rod 414 and the second connecting rod 415 are lifted, the first pulley 416 moves towards a hinge point close to the other side and the horizontal sliding rail 411 along the horizontal sliding rail 411, when the first connecting rod 414 and the second connecting rod 415 are lowered, the first pulley 416 moves towards a hinge point far away from the other side and the horizontal sliding rail 411 along the horizontal sliding rail 411, and the horizontal sliding rail 411 plays a role in supporting and guiding the first pulley 416. The fixed frame 5 is provided with a slide groove 54, the first link 414 can slide in the slide groove 54, the moving direction of the first link 414 in the slide groove 54 coincides with the moving direction of the first pulley 416, and the slide groove 54 can accurately and stably move the first link 414, so that the seal cover 3 can accurately and stably ascend or descend. The second link 415 is fixed on the top of the sealing cover 3 through a bearing seat, the vacuum lifting driving mechanism 42 includes a vacuum lifting chain 421 and a vacuum lifting motor 422, the vacuum lifting chain 421 is connected with the sealing cover 3, the vacuum lifting motor 422 can drive the vacuum lifting chain 421 to rotate so as to drive the sealing cover 3 to lift, therefore, when the sealing cover 3 lifts or descends, the first link 414 and the second link 415 also lift or descend along with the sealing cover 3, the vacuum generator 9 connected with the first link 414 through the fixing frame 5 also lifts or descends along with the fixing frame, and the lifting or descending speed of the vacuum generator 9 is consistent with that of the sealing cover 3.

According to the embodiment of the invention, the sealing cover 3 and the vacuum generator 9 are fixed on the fixing frame 5, when the sealing cover 3 is driven to ascend, the vacuum generator 9 fixed on the fixing frame 5 can ascend along with the sealing cover, and when the sealing cover 3 is driven to descend, the vacuum generator 9 can descend along with the sealing cover, so that the sealing cover 3 and the vacuum generator 9 are stronger in integrated machine, the structure is compact, the large-capacity leather vulcanizing machine occupies less space, the sealing cover 3 and the vacuum generator 9 can be conveniently and integrally lifted, the horizontal movement of the material frame 01 cannot be blocked after the lifting, and the horizontal circulating movement of the material frame 01 is facilitated. In addition, the motion of the connecting rod limits the sealing cover 3 to ascend and descend in the vertical direction, the motion direction of the first connecting rod 414 is limited through the sliding groove 54, the sealing cover and the second connecting rod 415 can stably and efficiently move synchronously, the fixed frame 5, the first hinged frame 412 and the second hinged frame 413 keep stress balance between the sealing cover 3 and the vacuum generator 9, the possibility of abrasion after long-time work is reduced, the ascending and descending of the sealing cover 3 are more stable, the matching with the bottom plate 1 is more accurate, the energy consumption of vacuumizing can be reduced, and the energy-saving and environment-friendly effects are achieved.

The lower ends of the first hinge frame 412 and the second hinge frame 413 are hinged to the horizontal slide rail 411 at a side close to the second link 415, so that the hinge end is stationary with respect to the first pulley 416, and the first slide rail moves back and forth with respect to the hinge end when the sealing cover 3 is lifted and lowered. The first link 414 is provided with a second pulley 417 engaged with the chute 54, so that the first link 414 can smoothly slide in the direction of the chute 54, thereby smoothly lifting and lowering the sealing cap 3 and the vacuum generator 9, and facilitating maintenance.

The vacuum lifting mechanism 4 further comprises a counterweight mechanism 43, the counterweight mechanism 43 is connected with the sealing cover 3 and used for providing a counterweight for the sealing cover 3 in the lifting process of the sealing cover 3, and preferably, the counterweight mechanism 43 is located at one end of the sealing cover 3 far away from the vacuum lifting chain 421, so that both ends of the sealing cover 3 are provided with pulling force, and the force applied to the sealing cover is uniform. The counterweight mechanism 43 comprises a counterweight block 431, a counterweight chain 432, a counterweight movable pulley 433 and a counterweight fixed pulley 434, the counterweight movable pulley 433 is fixedly connected with the top of the sealing cover 3, and the counterweight fixed pulley 434 is arranged on the upper part of the frame. One end of the counterweight chain 432 is connected with the top of the frame, and the other end of the counterweight chain 432 sequentially bypasses the counterweight movable pulley 433 and the counterweight fixed pulley 434 and then is connected with the counterweight block 431. The vacuum lifting chains 421 are symmetrically arranged on two sides of the sealing cover 3. The vacuum lifting motor 422 synchronously drives the vacuum lifting chains 421 at two sides through a synchronizing shaft, so that the two sides of the sealing cover 3 are stressed uniformly and have equal speed. When the vacuum lifting motor 422 controls the sealing cover 3 to ascend, the counterweight block 431 descends to pull the sealing cover 3 to ascend, and the sealing cover 3 is simultaneously under the pulling force action of the vacuum lifting motor 422 and the counterweight block 431; when the vacuum lifting motor 422 controls the sealing cover 3 to descend, the counterweight 431 ascends, and the counterweight 431 still has tension on the sealing cover 3 at the moment, so that the descending speed of the sealing cover 3 is slowed down, and finally the matching precision can be improved when the sealing cover is matched with the bottom plate 1.

The bottom of the bottom plate 1 is provided with a bottom plate slide rail 12 and a bottom plate pulley 11, the bottom plate pulley 11 can slide on the bottom plate slide rail 12, and preferably, the sliding direction of the bottom plate pulley 11 is the circulating moving direction of the material frame 01, i.e. the front-back direction. Bottom plate 1 is connected with bottom plate actuating mechanism 2, and bottom plate actuating mechanism 2 can drive bottom plate 1 translation around, and when material frame 01 was located bottom plate 1, material frame 01 can follow bottom plate 1 and remove to realize the cyclic movement of material frame 01 upper portion. The bottom plate driving mechanism 2 comprises a bottom plate driving chain 21 and a bottom plate driving motor 22, the bottom plate driving chain 21 is transversely arranged in a circulating mode, and one side of the bottom plate driving chain 21 is connected with the bottom plate 1. The bottom plate driving motor 22 can drive the bottom plate driving chain 21 to rotate so as to drive the bottom plate 1, and therefore when the bottom plate driving chain 21 moves under the driving of the bottom plate driving motor 22, the bottom plate 1 can be driven to move back and forth.

Be equipped with hoist mechanism 55 on bottom plate slide rail 12, hoist mechanism 55 is used for the lifting of material frame 01, makes material frame 01 and bottom plate 1 separation to the bottom plate 1 of being convenient for can improve the switching efficiency of bottom plate 1 at the switching between material loading station, vacuum vulcanization station and the ejection of compact station, thereby promotes the circulation efficiency of leather products vulcanizer. Hoist mechanism 55 is for being fixed in telescopic link 551 on bottom plate slide rail 12, telescopic link 551 top is equipped with the ejection piece 552 of echelonment, the corresponding position of ejection piece 552 lateral part and sealed cowling 3 is equipped with the through-hole, before lifting material frame 01 and removing the bottom, insert the bolt in this through-hole earlier, make bolt and the cooperation of the sieve mesh in the material frame 01, consequently, when telescopic link 551 extends, telescopic link 551 can drive sealed cowling 3 and material frame 01 through ejection piece 552 and rise, material frame 01 separates with bottom plate 1 this moment, bottom plate 1 can move to the material loading station under bottom plate actuating mechanism 2's effect, carry out next circulation.

The large-capacity leather vulcanizing machine further comprises a material frame lifting power mechanism 8, wherein the material frame lifting power mechanism 8 comprises a material frame lifting motor 81 and a material frame lifting chain 82, the material frame lifting motor 81 is connected with the material frame lifting chain 82 to drive the material frame lifting chain 82, one end of the material frame lifting chain 82 is connected with the material frame lifting motor 81, and the other end of the material frame lifting chain 82 is connected with the lifting beam 62, so that the material frame lifting motor 81 can drive the hook 7 on the lifting beam 62.

The automatic unhooking structure 73 is a convex block 731 arranged on the upper part of the main hook body 71, the convex block 731 is positioned right above a hanging point of the main hook body 71, the lower surface of the convex block 731 is an inclined surface 732, the inclined surface 732 is at a certain distance from the hanging point of the main hook body 71, and the distance is the distance that the hook 7 descends to the unhooking position of the hook 7 after the material frame 01 is lifted to the set position; when the material frame 01 reaches the set position, the material frame 01 is placed on the corresponding supporting plate, the hook 7 starts to move downwards, and when the hooking part of the material frame 01 contacts the inclined surface 732 of the bump 731, the hooking part of the material frame 01 pushes the main hook body 71 to the material frame fixing strip 72 along the inclined surface 732, so that the main hook body 71 is far away from the hooking part of the material frame 01, and automatic unhooking is realized.

The material frame fixing strips 72 are fixedly connected with the lifting beam 62 so as to improve the stability of the material frame fixing strips 72; one end of the main hook body 71 is hinged on the material frame fixing strip 72, and the main hook body 71 can swing around the hinged end relative to the material frame fixing strip 72. The lowest point of the frame fixing strip 72 is lower than the hanging point of the main hook body 71, so that the frame fixing strip 72 can protect one side of the frame 01, and the frame 01 is not easy to turn over around the hanging point. The frame fixing strip 72 comprises a transverse extension portion 721 and a vertical abutting portion 722, the main hook 71 is arranged on the transverse extension portion 721, a predetermined distance is left between the main hook 71 and the vertical abutting portion 722, the distance provides a moment for the vertical abutting portion 722, and therefore the frame fixing strip 72 can protect the frame 01 from rollover.

Therefore, at the loading station, the material frame lifting motor 81 drives the vacuum lifting chain 421 to make the lifting beam 62 perform lifting movement, so that the lifting beam 62 can move under the direction limitation of the guide slide rail 61, the hook 7 is arranged on the lifting beam 62, and the main hook body 71 of the hook 7 is matched with the hook part of the material frame 01, so that after the material is fed and the material frame 01 needs to be lifted, the material frame lifting motor 81 is started to drive the lifting beam 62 to lift, thereby driving the material frame 01 and smoothly lifting the material frame 01. The material frame fixing strip 72 of the hook 7 is in contact with one surface of the material frame 01, and can be matched with the main hook body 71 to fix the material frame 01, so that the material frame 01 can stably run when being lifted. The hook 7 is further provided with an automatic unhooking structure 73, when the material frame 01 is lifted to a set position, the material frame 01 is supported on the bottom plate 1, at the moment, the hook 7 continues to move downwards, the automatic unhooking mechanism can be contacted with the hooking part of the material frame 01, and the main hook body 71 can be automatically separated from the hooking part of the material frame 01.

Therefore, the working process of the embodiment of the invention is as follows:

the bottom plate 1 is divided into a front part and a rear part, and each part can bear a single material frame 01. When the bottom plate 1 is positioned at the feeding station, the front part and the rear part both bear the material frame 01, at the moment, the sealing cover 3 and the material frame 01 at the rear part of the bottom plate 1 are positioned on the bottom plate 1 at the same time, and the vacuumizing and vulcanizing operation of the previous cycle is finished. In the next cycle, before the bottom plate 1 moves, the sealing cover 3 rises under the action of the vacuum lifting mechanism 4, the vacuum generator 9 can rise along with the fixing frame 5 at the same time, the vacuum vulcanizing station frees space for the movement of the material frame 01 at the moment, when the bottom plate 1 moves backwards, the material frame 01 completing the vulcanizing operation just reaches the discharging station, the material frame 01 positioned at the front part of the bottom plate 1 reaches the vacuum vulcanizing station, the sealing cover 3 and the fixing frame 5 are controlled to fall at the moment, in the descending process of the fixing frame 5, the material frame hook 517 under the fixing frame 5 hooks the material frame 01, then the sealing cover 3 and the fixing frame 5 are controlled to rise, and at the moment, the lifting mechanism 55 synchronously controls the sealing cover 3 and the material frame 01 at the front part of the bottom plate 1 to rise so as to be separated from the bottom plate 1.

Meanwhile, the hook 7 is driven to rise by the material frame lifting motor 81, so that the material frame 01 is driven to rise smoothly, the material frame 01 is enabled to rise smoothly, then the bottom plate 1 moves towards the feeding station, after the material frame lifting motor 81 moves in place, the hook 7 is driven to fall by the material frame lifting motor 81, a new material frame 01 falls on the rear portion of the bottom plate 1, at the moment, the hook 7 continues to move downwards, the automatic unhooking mechanism can be in contact with the hooking portion of the material frame 01, and the main hook body 71 can be automatically separated from the hooking portion of the material frame 01. Then the vacuum lifting mechanism 4 controls the sealing cover 3 and the material frame 01 to start falling, the fixing frame 5 simultaneously descends, the material frame 01 on the material frame hook 517 enters the next layer for recycling, the material frame 01 on the bottom plate 1 is covered by the sealing cover 3, the vacuumizing and vulcanizing operation is started, and the new material frame 01 on the rear part of the bottom plate 1 continues to wait for the vacuum vulcanizing operation. This completes a work cycle.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.