Movable maintenance door of laminating machine

Abstract

The invention discloses a movable maintenance door of a laminating machine, which comprises a laminating machine body, an auxiliary door opening mechanism and an auxiliary sliding mechanism, the top surface of the laminating machine body is fixedly connected with a hanger rail, the hanger rail adopts an I-shaped structure, the auxiliary door opening mechanism is arranged on the side surface of the laminating machine body, and the auxiliary sliding mechanism is arranged on the side surface of the laminating machine body. The auxiliary door opening mechanism can achieve opening and closing of the movable maintenance door through telescopic control of the oil cylinder, it is not needed to unscrew a large number of screws and use hoisting equipment to move the movable maintenance door like a traditional mode, the operation process is greatly simplified, the opening and closing speed of the movable maintenance door is increased due to simplification of the operation process, and therefore the maintenance time is saved, and the maintenance efficiency is improved. And the auxiliary sliding mechanism can add lubricating oil in time instead of adding the lubricating oil after finding that the slide way goes wrong, so that the slide way is kept in a good lubricating state, the abrasion of the slide way can be obviously reduced, and the service life of the slide way is prolonged.

Description

Technical Field

[0001] The invention relates to the field of movable doors, in particular to a movable maintenance door of a laminating machine. Background Art

[0002] Laminators are specially designed for PCB circuit boards and CCL copper-clad substrates, and they play an important role in the industry. Laminators have complex structures and harsh working environments. They have complex cooling water and hydraulic pipelines in a closed and narrow vacuum environment. Therefore, it is very important that the backpack where the pipeline is located is easy and quick to maintain.

[0003] The existing backpack maintenance door adopts a movable cover plate, and the cover plate is fixed with screws. When maintaining the internal pipelines, dozens of large screws must be removed. This process is not only cumbersome but also time-consuming. Each screw needs to be unscrewed one by one, which increases the complexity and time cost of the operation. After the removal, the door cover plate is lifted and removed with lifting equipment. The entire removal process is cumbersome and time-consuming. In addition, the door cover plate may fall off and injure people due to improper operation or equipment failure during the lifting process.

[0004] In addition, since the laminator does not need to be repaired frequently, the slide rail will not be used for a long time after being used once. When the slide rail is not used for a long time, the lubricating grease inside will gradually become ineffective due to volatilization, oxidation, etc., causing the slide rail to become dry and stuck when it is used again. Moreover, the slide rail in the prior art is not protected. After being stationary for a long time, fine dust floating in the air will adhere to the slide rail, resulting in direct contact between metal parts when it is used next time, which will aggravate the wear of the slide rail and shorten its service life.

[0005] Therefore, a mobile maintenance door of a laminator is proposed to solve the above problems. Summary of the invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a mobile maintenance door for a laminator to solve the problem that dozens of large screws have to be removed when maintaining internal pipelines in the prior art. This process is not only cumbersome, but also the lubricating grease inside the slide rail will gradually become ineffective due to volatilization, oxidation, etc. when the slide rail is not used for a long time, resulting in the slide rail becoming dry and stuck when it is used again.

[0007] To achieve the above object, the present invention provides the following technical solution: a mobile maintenance door for a laminator, comprising: a laminator body, a top surface of the laminator body being fixedly connected with a hanging rail, and the hanging rail adopts an I-shaped structure, and also comprising an auxiliary door opening mechanism and an auxiliary sliding mechanism, the auxiliary door opening mechanism being arranged on the side of the laminator body, and the auxiliary sliding mechanism being arranged on the side of the laminator body; The auxiliary door opening mechanism is used to more conveniently control the opening and closing of the mobile maintenance door and maintain the sealing condition of the maintenance door; The auxiliary sliding mechanism is used to maintain the usage condition of the auxiliary door opening mechanism.

[0008] As an improvement, the auxiliary door opening mechanism includes a first connecting plate, and the first connecting plate is fixedly connected to the side of the hanging rail. A second connecting plate is fixedly connected to the side of the laminator body, and a notch is formed at one end of the second connecting plate close to the maintenance door. The bottom surface of the end of the first connecting plate away from the hanging rail is fixedly connected with a slideway. A bull's-eye bearing I and a return spring are arranged inside the slideway, and an oil cylinder is fixedly connected to the side surface of the inner wall of the slideway.

[0009] As an improvement, a slide plate is slidably connected inside the slideway. One side of the slide plate away from the slideway is fixedly connected with a first auxiliary plate, and one end of the oil cylinder away from the slideway is rotatably connected to the first auxiliary plate. One end of the first auxiliary plate away from the hanging rail is fixedly connected with a telescopic plate. A first connecting rod is rotatably connected to one side of the slide plate away from the slideway, and a second connecting rod is rotatably connected to one end of the slide plate away from the slide plate. One end of the first connecting rod and the second connecting rod away from the slide plate are rotatably connected to a moving door cover plate. The moving door cover plate is hoisted on the hanging rail through a hinge bracket, and the moving door cover plate is provided with an auxiliary shaft. The moving door cover plate can swing radially through the auxiliary shaft. The moving door cover plate is provided with a bull's-eye bearing II and a support guide rail bracket.

[0010] As an improvement, sealing air bags are arranged around the moving door cover plate, and the sealing air bags are high-temperature resistant vacuum sealing rings. An inflation device is fixedly connected to one side of the moving door cover plate away from the laminator body, and the inflation device is communicated with the sealing air bags. A contact point is arranged at the opening of the laminator body. One end of the second connecting rod close to the moving door cover plate is rotatably connected with a first cylinder, and the first cylinder is slidably connected to the top surface of the second connecting plate.

[0011] As an improvement, the auxiliary sliding mechanism includes a housing, and the housing is fixedly connected to the side of the hanging rail close to the first connecting plate. A second auxiliary plate is fixedly connected to the inner wall of the housing. A rotating column is fixedly connected to the top surface of the second auxiliary plate. A gear is fixedly connected to the upper part of the rotating column. A disc is fixedly connected to the top end of the rotating column, and the gear is located below the disc.

[0012] As an improvement, a rectangular groove body is rotatably connected to the eccentric position of the top surface of the disc. Second cylinders are fixedly connected to both sides of the rectangular groove body. First cylinders are fixedly connected to both sides of the top surface of the second auxiliary plate, and the two second cylinders are respectively slidably connected inside the first cylinders.

[0013] As an improvement, an oil storage bin is arranged on the top surface of the slideway, and a connecting pipe is fixedly connected between the oil storage bin and the first cylinder. One side of the sliding plate close to the outer shell is fixedly connected with a Z-shaped rack, and the Z-shaped rack is engaged with the gear.

[0014] As an improvement, rotary brushes are rotatably connected to both ends of the sliding plate. Receiving troughs are arranged at both ends of the sliding plate, and the receiving troughs are located below the rotary brushes. Limit travel limits are arranged at both ends of the slideway, and a damping spring is fixedly connected to the side surface of the limit travel limit. One end of the damping spring away from the limit travel limit is fixedly connected with a baffle.

[0015] Compared with the prior art, the present invention provides a movable maintenance door for a laminator, which has the following beneficial effects: 1. By the telescopic control of the oil cylinder, the sliding plate and the first auxiliary plate slide inside the slideway, thereby driving the movement of the door cover plate, and thus completing the opening and closing of the maintenance door of the laminator. Compared with the prior art, where dozens of screws need to be unscrewed and then the door cover plate is lifted and removed by a lifting device, the opening and closing of the door cover plate can be achieved by the telescopic control of the oil cylinder. There is no need to unscrew a large number of screws and use a lifting device like the traditional method, which greatly simplifies the operation process. Due to the simplification of the operation process, the opening and closing speed of the door cover plate is increased, thereby saving maintenance time and improving work efficiency.

[0016] 2. The sealing airbag is inflated through the inflation device, thereby filling the gap between the door cover plate and the laminator body. The method of using the sealing airbag to fill the gap has higher flexibility and convenience compared with traditional methods such as sealing strips. During installation, only need to fix the airbag in the appropriate position and inflate it through the air inlet device. During maintenance, if it is necessary to replace or repair the airbag, it can also be easily disassembled and replaced, reducing the maintenance difficulty and cost. Moreover, the sealing airbag has certain elasticity and plasticity and can adapt to gaps of different shapes and sizes. This means that during the design and manufacturing process of the laminator, there is no need to customize special seals for each model and specification of the laminator, thereby reducing the production cost and manufacturing difficulty.

[0017] 3. The rotation of the second cylinder drives the rectangular groove to perform a reciprocating movement in the horizontal direction, thereby dripping the lubricating oil in the oil storage bin inside the slideway. Thus, while the oil cylinder is telescoping, lubricating oil is added inside the slideway, reducing the frequency of manual application or addition of lubricating oil, reducing the workload and time cost of maintenance personnel, and being able to add lubricating oil in a timely manner, rather than manually adding lubricating oil by staff after problems are found in the slideway. Furthermore, keeping the slideway in a good lubricated state can significantly reduce the wear of the slideway, thereby extending its service life and reducing the cost of replacing the slideway. Description of the Drawings

[0018] Figure 1 Is the three-dimensional side view of the overall structure of the present invention; Figure 2 Is the schematic diagram of the connection relationship structure of the oil cylinder of the present invention; Figure 3 Is the schematic diagram of the connection relationship structure of the slide plate of the present invention; Figure 4 Is the schematic diagram of the structure of the auxiliary sliding mechanism of the present invention; Figure 5 Is the schematic diagram of the internal structure of the housing of the present invention; Figure 6 Is the schematic diagram of the connection relationship structure of the rotating column of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic diagram of the structure at position A in; Figure 8 Is the schematic diagram of the connection relationship structure of the limit stroke limit of the present invention.

[0019] In the figure: 1. Laminator body; 11. Hanging rail; 2. Auxiliary door opening mechanism; 21. First connecting plate; 22. Second connecting plate; 23. Slideway; 24. Slide plate; 25. First auxiliary plate; 26. Oil cylinder; 27. First connecting rod; 28. Moving door cover plate; 29. Second connecting rod; 210. First cylinder; 211. Sealing airbag; 212. Inflation device; 213. Contact point; 214. Telescopic plate; 3. Auxiliary sliding mechanism; 31. Housing; 32. Second auxiliary plate; 33. Rotating column; 34. Gear; 35. Disc; 36. Rectangular groove body; 37. First cylinder; 38. Second cylinder; 39. Connecting pipe; 310. Oil storage bin; 311. Z-shaped rack; 312. Rotary brush; 313. Receiving groove body; 314. Limit stroke limit; 315. Baffle; 316. Vibration damping spring. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Next, the present invention will be further described in detail according to the drawings and embodiments.

[0022] Embodiment Please refer to Figures 1 to 3 as shown: To solve the problems mentioned in the technical solution, an embodiment of the present application provides a movable maintenance door for a laminator, including: a laminator body 1, a suspension rail 11 is fixedly connected to the top surface of the laminator body 1, and the suspension rail 11 adopts an I-shaped structure. It also includes an auxiliary door opening mechanism 2 and an auxiliary sliding mechanism 3. The auxiliary door opening mechanism 2 is arranged on the side of the laminator body 1, and the auxiliary sliding mechanism 3 is arranged on the side of the laminator body 1; The auxiliary door opening mechanism 2 is used to more conveniently control the opening and closing of the movable maintenance door and maintain the sealing condition of the maintenance door; The auxiliary door opening mechanism 2 includes a first connecting plate 21, and the first connecting plate 21 is fixedly connected to the side of the suspension rail 11. A second connecting plate 22 is fixedly connected to the side of the laminator body 1, and a notch is opened at one end of the second connecting plate 22 close to the maintenance door. The bottom surface of the first connecting plate 21 far from the suspension rail 11 is fixedly connected to a slideway 23. A bull's-eye bearing one and a return spring are arranged inside the slideway 23, and an oil cylinder 26 is fixedly connected to the side surface of the inner wall of the slideway 23.

[0023] A slide plate 24 is slidably connected inside the slideway 23. One side of the slide plate 24 far from the slideway 23 is fixedly connected to a first auxiliary plate 25, and one end of the oil cylinder 26 far from the slideway 23 is rotatably connected to the first auxiliary plate 25. One end of the first auxiliary plate 25 far from the suspension rail 11 is fixedly connected to a telescopic plate 214. One end of the slide plate 24 far from the slideway 23 is rotatably connected to a first connecting rod 27. One end of the slide plate 24 far from the slide plate 24 is rotatably connected to a second connecting rod 29. One end of the first connecting rod 27 and the second connecting rod 29 far from the slide plate 24 are rotatably connected to a door cover plate 28. The door cover plate 28 is hoisted by a hinge bracket on the suspension rail 11, and the door cover plate 28 is provided with an auxiliary shaft. The door cover plate 28 can swing radially through the auxiliary shaft. The door cover plate 28 is provided with a bull's-eye bearing two and a support guide rail bracket.

[0024] Sealing airbags 211 are arranged around the door cover plate 28, and the sealing airbags 211 are high-temperature resistant vacuum sealing rings. One side of the door cover plate 28 far from the laminator body 1 is fixedly connected to an inflation device 212, and the inflation device 212 is communicated with the sealing airbags 211. A contact 213 is arranged at the opening of the laminator body 1. One end of the second connecting rod 29 close to the door cover plate 28 is rotatably connected to a first cylinder 210, and the first cylinder 210 is slidably connected to the top surface of the second connecting plate 22.

[0025] Among them: The suspension rail 11 adopts an I-shaped structure. One end of the second connecting plate 22 close to the maintenance door is provided with a notch. Inside the slideway 23, a bull's-eye bearing I and a return spring are arranged. The bull's-eye bearing I and the return spring can make the sliding door cover plate 28 separate from the installation surface and protect the sealing airbag 211 from being worn during the movement. And the sliding door cover plate 28 is provided with an auxiliary shaft, and the sliding door cover plate 28 can swing radially through the auxiliary shaft. The sliding door cover plate 28 is provided with a bull's-eye bearing II and a support guide rail bracket. After the sliding door cover plate 28 moves out of the original installation surface, the longitudinal offset distance is limited by the bull's-eye bearing II and the support guide rail bracket, and at the same time, it plays a role in protecting the seal. The sealing airbag 211 is a high-temperature resistant vacuum sealing ring. When the contact 213 is squeezed, the inflation device 212 injects air into the sealing airbag 211 to make it expand, and the inflation device 212 can be manually controlled to exhaust air.

[0026] Compared with the comparative document, through the implementation of this embodiment, the telescopic movement of the oil cylinder 26 is used to control the sliding of the sliding plate 24 and the first auxiliary plate 25 inside the slideway 23, and then drive the sliding of the sliding door cover plate 28, thereby completing the opening and closing of the maintenance door of the laminator. Compared with the prior art where dozens of screws need to be unscrewed and then a lifting device is used to hoist and remove the sliding door cover plate, the opening and closing of the sliding door cover plate 28 can be realized by controlling the telescopic movement of the oil cylinder 26, without the need to unscrew a large number of screws and use a lifting device as in the traditional method, greatly simplifying the operation process and improving the work efficiency.

[0027] A further embodiment: Please refer to Figures 4 to 8 as shown: The auxiliary sliding mechanism 3 is used to maintain the usage condition of the auxiliary opening mechanism 2.

[0028] The auxiliary sliding mechanism 3 includes a housing 31. The housing 31 is fixedly connected to the surface of the suspension rail 11 close to the first connecting plate 21. The inner wall of the housing 31 is fixedly connected with a second auxiliary plate 32. The top surface of the second auxiliary plate 32 is fixedly connected with a rotating column 33. The upper part of the rotating column 33 is fixedly connected with a gear 34. The top end of the rotating column 33 is fixedly connected with a disc 35, and the gear 34 is located below the disc 35.

[0029] An eccentric part on the top surface of the disc 35 is rotatably connected with a rectangular groove body 36. Both sides of the rectangular groove body 36 are fixedly connected with second cylinders 38. Both sides of the top surface of the second auxiliary plate 32 are fixedly connected with first cylinders 37, and the two second cylinders 38 are respectively slidably connected inside the first cylinders 37.

[0030] An oil storage bin 310 is arranged on the top surface of the slideway 23, and a connecting pipe 39 is fixedly connected and communicated between the oil storage bin 310 and the first cylinder 37. A Z-shaped rack 311 is fixedly connected to the surface of the sliding plate 24 close to the housing 31, and the Z-shaped rack 311 meshes with the gear 34.

[0031] Both ends of the skateboard 24 are rotatably connected with rotary brushes 312. Receiving troughs 313 are arranged at both ends of the skateboard 24, and the receiving troughs 313 are located below the rotary brushes 312. Extreme travel limiters 314 are arranged at both ends of the slideway 23, and a damping spring 316 is fixedly connected to the side of the extreme travel limiter 314. One end of the damping spring 316 away from the extreme travel limiter 314 is fixedly connected to a baffle 315.

[0032] Among them: The oil storage bin 310 is communicated with the slideway 23. When the skateboard 24 moves, it controls the oil storage bin 310 to drip lubricating oil into the slideway 23. The outer surface of the rotary brush 312 is provided with bristles.

[0033] Compared with the comparative document, through the implementation of this embodiment, the lubricating oil in the oil storage bin 310 is dripped into the interior of the slideway 23 by the rotation of the second cylinder 38. While the oil cylinder 26 is telescoping, lubricating oil is added to the interior of the slideway 23, reducing the frequency of manual application or addition of lubricating oil by personnel, reducing the workload and time cost of maintenance personnel, and enabling timely addition of lubricating oil, rather than waiting until problems occur in the slideway 23 and then having staff manually add lubricating oil. This enables the slideway 23 to maintain a good lubricated state, significantly reducing wear of the slideway 23, thereby extending its service life and reducing the cost of replacing the slideway 23.

[0034] The working principle of all the content in the above embodiments is as follows: In the initial state: The sliding door cover plate 28 is located at the opening of the laminating machine body 1, and the first cylinder 210 is located inside the notch opened in the second connecting plate 22.

[0035] The following is the working process of the auxiliary door opening mechanism 2 for more conveniently controlling the opening and closing of the movable maintenance door and maintaining the sealing of the maintenance door: During use, the staff controls the inflation device 212 to extract the gas in the sealing airbag 211, so that the inflation device 212 is no longer closely attached to the inner wall of the laminating machine body 1. Compared with traditional methods such as sealing strips, controlling the inflation device 212 to extract or inject gas into the sealing airbag 211 has higher flexibility and convenience. During installation, only need to fix the sealing airbag 211 in an appropriate position and inflate it through the inflation device 212. Moreover, the sealing airbag 211 has certain elasticity and plasticity and can adapt to gaps of different shapes and sizes, which means that during the design and manufacturing process of the laminating machine, there is no need to customize special seals for each model and specification of the laminating machine, thereby reducing production costs and manufacturing difficulties; Subsequently, the control oil cylinder 26 contracts. The contraction of the oil cylinder 26 drives the first auxiliary plate 25 rotatably connected thereto to move in the direction close to the oil cylinder 26. The movement of the first auxiliary plate 25 drives the sliding plate 24 fixedly connected thereto to slide. The sliding of the sliding plate 24 drives the first connecting rod 27 and the second connecting rod 29 rotatably connected thereto to rotate. The rotation of the first connecting rod 27 and the second connecting rod 29 drives the moving door cover plate 28 rotatably connected thereto to move. Since a bull's-eye bearing I and a return spring are arranged inside the slideway 23, and the bull's-eye bearing I and the return spring can enable the moving door cover plate 28 to be separated from the mounting surface and protect the sealing airbag 211 from being worn during the movement. Since the moving door cover plate 28 is provided with an auxiliary shaft, the moving door cover plate 28 can swing radially through the auxiliary shaft. And the moving door cover plate 28 is provided with a bull's-eye bearing II and a support guide rail bracket. After the moving door cover plate 28 moves out of the original mounting surface, the longitudinal offset distance is defined by the bull's-eye bearing II and the support guide rail bracket, and at the same time, it plays a role in protecting the sealing airbag 211. Subsequently, the staff enters through the reserved entrance for maintenance. The opening and closing of the laminator maintenance door are completed by the telescopic movement of the oil cylinder 26. Compared with the prior art in which dozens of screws need to be unscrewed and then the door cover plate is lifted and moved away by a lifting device, the operation process is greatly simplified. There is no need to unscrew a large number of screws and use a lifting device as in the traditional method. Due to the simplification of the operation process, the opening and closing speed of the moving door cover plate 28 is increased, thereby saving the maintenance time and improving the work efficiency. And while the oil cylinder 26 controls the sliding of the first auxiliary plate 25, it can also drive the telescopic plate 214 fixedly connected thereto to expand and contract. When the laminator body 1 does not need to be maintained, the telescopic plate 214 can play a role in protecting the auxiliary door opening mechanism 2 and prevent dust from entering and adhering to the structure.

[0036] Please refer to the above working process Figures 1 to 3 。

[0037] The following is the working process of the use of the auxiliary sliding mechanism 3 to maintain the auxiliary door opening mechanism 2: During use, when the oil cylinder 26 controls the sliding of the slide plate 24, the slide plate 24 drives the Z-shaped rack 311 fixedly connected thereto to move together. Since the Z-shaped rack 311 meshes with the gear 34, that is, the movement of the Z-shaped rack 311 drives the meshing gear 34 to rotate. The rotation of the gear 34 drives the rotating column 33 fixedly connected thereto to rotate, and the rotation of the rotating column 33 drives the disc 35 fixedly connected thereto to rotate. Since the rectangular groove body 36 is slidably connected to the eccentric position of the top surface of the disc 35, that is, when the disc 35 rotates, the rectangular groove body 36 slidably connected thereto makes a reciprocating motion in the horizontal direction, and then drives the second cylinder 38 fixedly connected thereto to make a reciprocating motion together. Thus, the lubricating oil in the oil storage bin 310 is dripped into the inside of the slideway 23, so as to keep the stable sliding of the slide plate 24. While the oil cylinder 26 is telescoping, lubricating oil is added to the inside of the slideway 23, reducing the frequency of manual lubrication application or addition, and the lubricating oil can be added in a timely manner, rather than manually added by the staff after problems are found in the slideway 23, thereby reducing the wear of the slideway 23 and extending its service life; In addition, while the oil cylinder 26 is telescoping, the driving device drives the rotary brush 312 to rotate. Thus, the lubricating oil dripped into the slideway 23 can be smeared more evenly, so as to avoid excessive consumption of lubricating oil caused by uneven lubrication, thereby saving resources and reducing costs. Moreover, it can also reduce the oil mist and oil droplet splashing caused by uneven lubrication, thereby reducing the pollution to the working environment and equipment. Since the inside of the slideway 23 is provided with a limit travel limiter 314, and a baffle 315 and a damping spring 316 are arranged on the outer surface of the limit travel limiter 314, and the limit limit of the sliding door cover plate 28 is ensured by the limit travel limiter 314. The impact force of the sliding door cover plate 28 when hitting the limit travel limiter 314 can be reduced by the baffle 315 and the damping spring 316, thereby extending the service life.

[0038] Please refer to the above working process Figures 4 to 8 。

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A movable maintenance door for a laminator, comprising: Laminator body (1), a suspension rail (11) is fixedly connected to the top surface of the laminator body (1), and the suspension rail (11) adopts an I-beam structure. It is characterized in that it further includes an auxiliary door opening mechanism (2) and an auxiliary sliding mechanism (3). The auxiliary door opening mechanism (2) is arranged on the side of the laminator body (1), and the auxiliary sliding mechanism (3) is arranged on the side of the laminator body (1); The auxiliary door opening mechanism (2) is used to more conveniently control the opening and closing of the movable maintenance door and maintain the sealing condition of the maintenance door; The auxiliary sliding mechanism (3) is used to maintain the usage condition of the auxiliary door opening mechanism (2).

2. The movable maintenance door of a laminator according to claim 1, characterized in that: The auxiliary door opening mechanism (2) includes a first connecting plate (21), and the first connecting plate (21) is fixedly connected to the side of the suspension rail (11). A second connecting plate (22) is fixedly connected to the side of the laminator body (1), and a notch is opened at one end of the second connecting plate (22) close to the maintenance door. The bottom surface of the end of the first connecting plate (21) away from the suspension rail (11) is fixedly connected with a slideway (23). A bull's-eye bearing one and a return spring are arranged inside the slideway (23), and an oil cylinder (26) is fixedly connected to the side surface of the inner wall of the slideway (23).

3. The movable maintenance door of a laminator according to claim 2, characterized in that: A slide plate (24) is slidably connected inside the slideway (23). A first auxiliary plate (25) is fixedly connected to the side of the slide plate (24) away from the slideway (23). One end of the oil cylinder (26) away from the slideway (23) is rotatably connected to the first auxiliary plate (25). A telescopic plate (214) is fixedly connected to the end of the first auxiliary plate (25) away from the suspension rail (11). A first connecting rod (27) is rotatably connected to the side of the slide plate (24) away from the slideway (23). A second connecting rod (29) is rotatably connected to the end of the slide plate (24) away from the slide plate (24). A moving door cover plate (28) is rotatably connected to the ends of the first connecting rod (27) and the second connecting rod (29) away from the slide plate (24). The moving door cover plate (28) is hoisted on the suspension rail (11) by a hinge bracket, and the moving door cover plate (28) is provided with an auxiliary shaft. The moving door cover plate (28) can swing radially through the auxiliary shaft. The moving door cover plate (28) is provided with a bull's-eye bearing two and a support guide rail bracket.

4. The movable maintenance door of a laminator according to claim 3, characterized in that: Sealing air bags (211) are arranged around the moving door cover plate (28), and the sealing air bags (211) are high-temperature resistant vacuum sealing rings. An inflation device (212) is fixedly connected to the side of the moving door cover plate (28) away from the laminator body (1), and the inflation device (212) is communicated with the sealing air bags (211). A contact point (213) is arranged at the opening of the laminator body (1). A first cylinder (210) is rotatably connected to the end of the second connecting rod (29) close to the moving door cover plate (28), and the first cylinder (210) is slidably connected to the top surface of the second connecting plate (22).

5. The movable maintenance door of a laminator according to claim 3, characterized in that: The auxiliary sliding mechanism (3) includes a housing (31). The housing (31) is fixedly connected to one side of the hanging rail (11) close to the first connecting plate (21). A second auxiliary plate (32) is fixedly connected to the inner wall of the housing (31). A rotating column (33) is fixedly connected to the top surface of the second auxiliary plate (32). A gear (34) is fixedly connected to the upper part of the rotating column (33). A disc (35) is fixedly connected to the top end of the rotating column (33), and the gear (34) is located below the disc (35).

6. The movable maintenance door of a laminator according to claim 5, characterized in that: A rectangular groove body (36) is rotatably connected to an eccentric position on the top surface of the disc (35). Second cylinders (38) are fixedly connected to both sides of the rectangular groove body (36). First cylinders (37) are fixedly connected to both sides of the top surface of the second auxiliary plate (32), and the two second cylinders (38) are respectively slidably connected to the inside of the first cylinders (37).

7. The movable maintenance door of a laminator according to claim 6, characterized in that: An oil storage chamber (310) is arranged on the top surface of the slideway (23), and a connecting pipe (39) is fixedly connected and communicated between the oil storage chamber (310) and the first cylinder (37). A Z-shaped rack (311) is fixedly connected to the side of the sliding plate (24) close to the housing (31), and the Z-shaped rack (311) is engaged with the gear (34).

8. The movable maintenance door of a laminator according to claim 7, characterized in that: Rotating brushes (312) are rotatably connected to both ends of the sliding plate (24). Receiving groove bodies (313) are arranged at both ends of the sliding plate (24), and the receiving groove bodies (313) are located below the rotating brushes (312). Extreme stroke limits (314) are arranged at both ends of the slideway (23), and a damping spring (316) is fixedly connected to the side of the extreme stroke limit (314). One end of the damping spring (316) far away from the extreme stroke limit (314) is fixedly connected to a baffle (315).

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