A laminating machine

Abstract

The present application discloses a film laminating machine, which includes an air storage part, a lifting part, a feeding part and a base part; the air storage part includes an air storage bin, an exhaust passage fixedly connected to the bottom of the air storage bin and a fan for unidirectional air supply to the air storage bin, the air storage bin includes a door for separating the air storage bin and the exhaust passage, the door is an opening and closing structure, and the opening direction of the door is toward the inside of the air storage bin; the lifting part includes a lifting platform, a windshield block fixedly connected to the top of the lifting platform, a top rod fixedly connected to the top of the windshield block and a motor for driving the lifting platform; the base part is located below the lifting platform. The film laminating machine provided by the present application can provide a faster film laminating speed and stable transmission, thereby improving the film laminating efficiency; at the same time, the motor in the present application can always transmit output in one direction, saving the time and loss of repeated changes of direction.

Description

Technical Field

[0001] The present application relates to the technical field of packaging equipment, and in particular to a laminating machine. Background Art

[0002] Laminators are widely used analytical instruments that package samples by applying pressure to pressure-sensitive films, or between pressure-sensitive films and samples. Currently, existing laminators can be used to package deep-well plates, PCR plates, ELISA plates, 8-tube strips, nucleic acid sampling swabs, and more. However, existing equipment has slow lifting and lowering speeds, especially slow downward pressure, resulting in slow packaging and impacting production efficiency. Furthermore, the lifting and lowering mechanisms are often gear-driven, resulting in slow speeds and low efficiency. The meshing of multiple gears during installation can cause asynchrony in transmission, leading to uneven force and unstable transmission. Summary of the Invention

[0003] In order to solve the above problems, the present application provides a film laminating machine, which includes a gas storage part, a lifting part, a feeding part and a base part;

[0004] The gas storage portion includes a gas storage bin, an exhaust passage fixedly connected below the gas storage bin, and a fan for unidirectionally supplying gas to the gas storage bin. The gas storage bin includes a door for separating the gas storage bin and the exhaust passage. The door is an openable structure, and the door opens toward the inside of the gas storage bin. Preferably, the pressure of the gas storage bin before the door is opened is between 1400 and 3000 bar.

[0005] The lifting part includes a lifting platform, a windshield block fixedly connected above the lifting platform, a push rod fixedly connected above the windshield block, and a motor driving the lifting platform. The windshield block always moves in the exhaust passage. The area of the windshield block is slightly smaller than the exhaust passage. When the windshield block moves to the highest point, the push rod can prop open the warehouse door to connect the gas storage bin with the exhaust passage. When the windshield block moves to the lowest point, the push rod is separated from the warehouse door, and the warehouse door is closed under the action of gravity, and the gas storage bin is separated from the exhaust passage. Preferably, the warehouse door is made of metal, and the gas storage bin is provided with elastic rubber near the warehouse door for enhancing air tightness.

[0006] The base portion is located below the lifting platform. When the lifting platform moves to the highest point, the lifting platform reaches a predetermined distance from the base portion. When the lifting platform moves to the lowest point, the lifting platform and the base portion are in zero-distance contact and the relative speed during contact is not zero. Preferably, the portion of the lifting platform in contact with the base portion is made of an elastic material capable of buffering.

[0007] The feeding portion is a roller structure that delivers the material required for lamination to the space between the base portion and the lifting platform. Preferably, the material includes a pressure-sensitive portion. With this arrangement, when the lifting platform is raised to a set position, it can descend at a speed more than twice the lifting speed, leveraging the thrust released by the gas in the gas storage bin.

[0008] Furthermore, a spring for buffering is provided at the bottom of the base portion. This arrangement can reduce the impact on the base portion when the lifting platform contacts the base portion.

[0009] Furthermore, the lifting platform is horizontally fixedly connected to a set of piston cylinders, the pistons of which move vertically in sync with the lifting platform. This arrangement ensures that the space from the piston to the bottom of the piston cylinder is relatively airtight. The longer the lifting platform descends, the greater the upward resistance it encounters, thereby providing a cushioning effect.

[0010] Furthermore, the lower portion of the piston cylinder is in one-way communication with the gas storage bin, allowing gas in the lower portion of the piston cylinder to be supplied to the gas storage bin in a one-way manner during vertical movement of the piston portion. Preferably, a one-way air inlet valve is provided at the bottom of the piston cylinder. This one-way air inlet valve allows air to be replenished from the outside when the air pressure in the lower space of the piston cylinder is lower than the external atmospheric pressure. This arrangement allows the gas storage bin to be partially replenished during the piston's descent, while also preventing negative pressure from being generated in the lower portion of the piston cylinder during the piston's ascent.

[0011] Furthermore, the left and right sides of the lifting platform are fixedly connected to a first slider and a second slider, respectively. The first slider and the second slider slide vertically along a first track and a second track, respectively. The motor drives the first slider and the second slider to move the lifting platform up and down. This arrangement ensures that the lifting direction of the lifting platform is stable.

[0012] Furthermore, the first slider and the second slider are fixedly connected to a first transmission belt and a second transmission belt, respectively. The first transmission belt is driven by a first driving shaft and transmits power between the first driving shaft and a first driven shaft located below the first driving shaft. The second transmission belt is driven by a second driving shaft and transmits power between the second driving shaft and a second driven shaft located below the second driving shaft.

[0013] The motor is provided with a third driving shaft directly driven by the motor. The third driving shaft is driven by the second driving shaft via a third transmission belt, and the second driving shaft is driven by the first driving shaft via a fourth transmission belt. In this arrangement, the same motor drives the lifting part via the transmission belt, and the transmission is stable.

[0014] Furthermore, the second driving shaft is composed of a first shaft segment driven by the third transmission belt and a second shaft segment driven by the fourth transmission belt. The first shaft segment is enlarged in diameter at the connection with the second shaft segment and is hollowed to form a sleeve. At the connection, the sleeve of the first shaft segment wraps around the second shaft segment to form a nested structure. A plurality of spherical plungers are evenly arranged on the wall of the sleeve, and the spherical portion of each spherical plunger protrudes at least half of the spherical surface of the sleeve. The wrapped portion of the second shaft segment is provided with corresponding grooves to precisely accommodate the protruding portions of the spherical plungers. During transmission, only the protruding portions of the spherical plungers act on the second shaft segment to drive the second shaft segment. This configuration allows the transmission of the second and first shaft segments to change with the state of the spherical plungers.

[0015] Furthermore, the ball portion of the spherical plunger is made of a material that is heat-resistant, wear-resistant, hard, and has good insulation properties. This arrangement improves the transmission life and transmission effect of the spherical plunger.

[0016] Furthermore, the ball portion of the spherical plunger is made of silicon nitride ceramics.

[0017] Furthermore, when the first shaft segment drives the second shaft segment at the lifting speed of the platform, the coil spring portion of the spherical plunger expands and contracts to zero. When the second shaft segment actively rotates at a speed exceeding twice the lifting speed, the coil spring portion of the spherical plunger contracts to its maximum value and pops out after a delay of 0.5 to 1 second, with the ball of the spherical plunger retracting back into the body and disengaging from the second shaft segment. This configuration minimizes the impact of the shaft's reverse drive on the motor during the platform's descent, as well as the resistance from the first shaft segment to the motor end during descent.

[0018] This application has the following beneficial effects:

[0019] The laminating machine provided in the present application can provide a faster laminating speed and stable transmission, thereby improving the laminating efficiency; at the same time, the motor in the present application can always transmit the output in one direction, saving the time and loss of repeated changes of direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 A front view of a specific embodiment of the laminator provided in this application;

[0022] Figure 2 A rear view of a specific embodiment of the laminator provided in this application;

[0023] Figure 3 A right side view of a specific embodiment of the laminator provided in this application;

[0024] Figure 4 A schematic diagram of a piston cylinder and AA cross-section line of a specific embodiment of the film laminating machine provided in this application;

[0025] Figure 5 A schematic cross-sectional view taken along the AA direction of a piston cylinder of a specific embodiment of the film laminating machine provided in this application;

[0026] Figure 6 A schematic diagram of the second driving shaft and BB cross-sectional line of a specific embodiment of the laminator provided by the present application;

[0027] Figure 7 A schematic cross-sectional view of the second driving shaft along the line BB of a specific embodiment of the laminator provided in this application;

[0028] Figure 8 A schematic diagram of the exploded structure of the second driving shaft of a specific embodiment of the film laminating machine provided in this application;

[0029] Figure 9 A right side view and CC cross-sectional view of a specific embodiment of the laminator provided by the present application when the lifting platform moves to the highest point;

[0030] Figure 10 This is a CC-direction cross-sectional diagram of a specific embodiment of the film laminating machine provided by the present application when the lifting platform moves to the highest point;

[0031] Figure 11 A right side view and a DD cross-sectional view of a specific embodiment of the laminator provided in this application when the lifting platform moves to the lowest point;

[0032] Figure 12 This is a schematic DD-axis cross-sectional view of a specific embodiment of the laminating machine provided in this application when the lifting platform moves to the lowest point.

[0033] In the picture:

[0034] 11. Gas storage bin, 111. Bin door, 12. Exhaust duct, 13. Fan, 21. Lifting platform, 22. Wind shield, 23. Push rod, 24. Motor, 5. Piston cylinder, 251. Piston part, 261. First slider, 262. First track, 263. First transmission belt, 264. First driving shaft, 265. First driven shaft, 271. Second slider, 272. Second track, 273. Second transmission belt, 274. Second driving shaft, 2741. First shaft section, 27411. Sleeve, 27412. Spherical plunger, 27413. Ball part, 27414. Coil spring part, 2742. Second shaft section, 27421. Groove, 275. Second driven shaft, 281. Third driving shaft, 282. Third transmission belt, 283. Fourth transmission belt, 3. Base part, 4. Feeding part. DETAILED DESCRIPTION

[0035] In order to clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings below, it is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that the directional terms such as left, right, up, down, front and back in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product, that is, the direction of movement of the product, and should not be considered as limiting.

[0037] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of the present invention not only refer to changes in position, but also include movements such as rotation and rolling in which there is no relative change in position but the state changes.

[0038] Finally, it should be noted that when a component is referred to as being "located on" or "disposed on" another component, it can be on the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0039] The embodiment of the present application provides a laminating machine, such as Figures 1 to 12 As shown:

[0040] In this application, the laminator includes a gas storage part, a lifting part, a feeding part 4 and a base part 3;

[0041] The gas storage portion includes an air storage bin 11, an exhaust duct 12 fixedly connected to the bottom of the air storage bin 11, and a fan 13 for one-way air supply to the air storage bin 11. The air storage bin 11 includes a bin door 111 for separating the air storage bin 11 and the exhaust duct 12. The bin door 111 is an openable structure, and the opening direction of the bin door 111 is toward the inside of the air storage bin 11. Preferably, the pressure of the air storage bin 11 before the bin door 111 is opened is between 1400 and 3000 bar. Such a pressure setting of the air storage bin 11 prevents the bin door 111 from being opened by the push rod 23 due to the pressure being too low, thereby preventing sufficient airflow from impacting the windshield block 22 and causing the windshield block 22 to descend at a speed greater than twice the lifting speed, while also preventing the push rod 23 from being unable to open the bin door 111 due to the pressure being too high.

[0042] The lifting part includes a lifting platform 21, a windshield block 22 fixedly connected to the top of the lifting platform 21, a push rod 23 fixedly connected to the top of the windshield block 22 and a motor 24 that drives the lifting platform 21. The windshield block 22 always moves in the exhaust passage 12. The area of the windshield block 22 is slightly smaller than the exhaust passage 12. When the windshield block 22 moves to the highest point, the push rod 23 can open the warehouse door 111 to connect the gas storage bin 11 with the exhaust passage 12. When the windshield block 22 moves to the lowest point, the push rod 23 disengages from the warehouse door 111, and the warehouse door 111 is closed under the action of gravity, separating the gas storage bin 11 from the exhaust passage 12; preferably, the warehouse door 111 is made of metal, and the gas storage bin 11 is provided with elastic rubber near the warehouse door 111 for enhancing air tightness; such a configuration enables the warehouse door 111 to fall down and close the gas storage bin 11 by its own weight while having good air tightness and buffering effect;

[0043] The base portion 3 is located below the lifting platform 21. When the lifting platform 21 moves to the highest point, the lifting platform 21 reaches a predetermined distance from the base portion 3. When the lifting platform 21 moves to the lowest point, the lifting platform 21 and the base portion 3 are in zero-distance contact and the relative speed during contact is not zero. Preferably, the contact portion between the lifting platform 21 and the base portion 3 is made of an elastic material that can provide a buffer. With this arrangement, when the lifting platform 21 contacts the base, the pressure of the lifting platform 21 can be evenly distributed to the contact surface between the lifting platform 21 and the base portion 3, thereby achieving a close-fitting packaging by utilizing a lamination film.

[0044] The feeding section 4 is a roller structure that delivers the material required for lamination to the space between the base section 3 and the lifting platform 21. Preferably, the material includes a pressure-sensitive portion. This arrangement allows the lifting platform 21 to be lowered at a speed more than twice the lifting speed, leveraging the thrust released by the gas in the gas storage bin 11. When the lifting platform 21 contacts the base section 3, the pressure applied to the material is applied to the lamination package.

[0045] In this application, the materials required for lamination include upper and lower layers of pressure-sensitive packaging film and the packaged object. The packaged object should be fixed to the lower layer of pressure-sensitive packaging film in advance. The length and width of the packaged object are within the length and width range of the base portion 3. The height of the packaged object is 0.3 to 1 cm, so that the lifting platform 21 can more completely wrap the packaged object between the upper and lower layers of pressure-sensitive packaging film when laminating.

[0046] To facilitate continuous material feeding by the feeding mechanism of this application, the width of the material required for lamination fed by the roller structure is preferably greater than the width of the base portion 3 by at least 3 cm, and pre-treating is performed on the upper and lower layers of pressure-sensitive packaging film with holes perforated every 1.5 to 3 cm, with a hole diameter of 0.5 to 2 mm and a hole spacing of 0.4 to 0.6 cm, projected from the portion of the lifting platform 21 in contact with the base portion 3. In this way, the downward impact force of the lifting platform 21 can tear off the pre-perforated area of the material required for lamination and bring it to the base portion 3. It can then be transferred and collected manually or by a robot without affecting the continuity of the material required for lamination on the feeding portion 4.

[0047] like Figure 1 As shown, a spring for buffering is provided at the bottom of the base portion 3. This arrangement can reduce the impact on the base portion 3 when the lifting platform 21 contacts the base portion 3.

[0048] like Figures 1 to 3 As shown, the lifting platform 21 is fixedly connected horizontally to a set of piston cylinders 25. The piston portion 251 of the piston cylinder 25 moves vertically synchronously with the lifting platform 21. This arrangement makes the space from the piston to the bottom of the piston cylinder 25 relatively closed. The longer the lifting platform 21 descends, the greater the upward resistance it encounters, thereby acting as a buffer.

[0049] like Figures 2 to 5 As shown, the lower portion of the piston cylinder 25 is in one-way communication with the gas storage chamber 11, allowing gas in the lower portion of the piston cylinder 25 to be supplied to the gas storage chamber 11 in a one-way manner during vertical movement of the piston portion 251. Preferably, a one-way air inlet valve is provided at the bottom of the piston cylinder 25. This valve allows air to be replenished from the outside when the pressure in the lower space of the piston cylinder 25 is lower than the ambient atmospheric pressure. This arrangement allows the gas storage chamber 11 to be partially replenished during the piston's descent, while also preventing negative pressure from being generated in the lower portion of the piston cylinder 25 during its ascent.

[0050] like Figure 1As shown, the left and right sides of the lifting platform 21 are fixedly connected to the first slider 261 and the second slider 271, respectively. The first slider 261 and the second slider 271 slide vertically along the first track 262 and the second track 272, respectively. The motor 24 drives the lifting platform 21 up and down by driving the first slider 261 and the second slider 271. This arrangement ensures that the lifting direction of the lifting platform 21 is stable.

[0051] like Figures 1 to 3 As shown, the first slider 261 and the second slider 271 are fixedly connected to the first transmission belt 263 and the second transmission belt 273, respectively. The first transmission belt 263 is driven by the first driving shaft 264 and transmits power between the first driving shaft 264 and the first driven shaft 265 located below the first driving shaft 264. The second transmission belt 273 is driven by the second driving shaft 274 and transmits power between the second driving shaft 274 and the second driven shaft 275 located below the second driving shaft 274. The motor 24 is provided with a third driving shaft 281 directly driven by the motor 24. The third driving shaft 281 transmits power to the second driving shaft 274 via a third transmission belt 282, and the second driving shaft 274 transmits power to the first driving shaft 264 via a fourth transmission belt 283. With this arrangement, the same motor 24 transmits power to the lifting part via the transmission belt, providing smooth transmission.

[0052] like Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8 As shown, the second driving shaft 274 is composed of a first shaft segment 2741 acted upon by the third transmission belt 282 and a second shaft segment 2742 acted upon by the fourth transmission belt 283. The diameter of the first shaft segment 2741 is enlarged at the connection with the second shaft segment 2742 and the hollow part is set as a sleeve 27411. At the connection, the sleeve 27411 of the first shaft segment 2741 wraps the second shaft segment 2742 to form a nested structure. A plurality of spherical plungers 27412 are evenly arranged on the wall of the sleeve 27411. The ball portion 27413 of the spherical plunger 27412 protrudes at least half of the spherical surface of the inner surface of the sleeve 27411. The wrapped part of the second shaft segment 2742 is provided with a corresponding groove 27421 to just accommodate the protruding part of the spherical plunger 27412. During transmission, only the protruding part of the spherical plunger 27412 acts on the second shaft segment 2742 to drive the second shaft segment 2742. With such an arrangement, the transmission of the second shaft segment 2742 and the first shaft segment 2741 can be changed according to the state of the spherical plunger 27412 .

[0053] like Figures 6 to 8 As shown, the ball portion 27413 of the spherical plunger 27412 is made of a material that is resistant to high temperatures, wear-resistant, has high hardness, and has good insulation properties. This arrangement improves the transmission life and transmission effect of the spherical plunger 27412.

[0054] like Figures 6 to 8 As shown, the ball portion 27413 of the spherical plunger 27412 is made of silicon nitride ceramic.

[0055] refer to Figures 6 to 8 As shown, when the first shaft segment 2741 drives the second shaft segment 2742 at the lifting speed of the lifting platform 21, the coil spring portion 27414 of the spherical plunger 27412 expands and contracts to zero. When the second shaft segment 2742 actively rotates at more than twice the lifting speed, the coil spring portion 27414 of the spherical plunger 27412 contracts to its maximum and pops out after a delay of 0.5 to 1 second. The ball portion 27413 of the spherical plunger 27412 retracts into the main body and disengages from the second shaft segment 2742. This arrangement minimizes the impact of the shaft's reverse transmission on the motor 24 during the descent of the lifting platform 21 and the resistance encountered by the lifting platform 21 from the first shaft segment 2741 to the motor 24 during descent.

[0056] It should be noted that, of course, in the present application, each shaft and the corresponding transmission belt are provided with a fixedly connected transmission pulley at the action point to limit and drive the movement of the transmission belt; the lifting platform 21 and the windshield block 22 of the present application are connected by a columnar rigid rod to reduce the structural weight of the lifting part; there is no enclosed space between the windshield block 22 of the present application and the exhaust channel 12, and a small amount of airflow can pass freely from the exhaust channel 12. In this way, the air pressure in the exhaust channel 12 is always not less than the external atmospheric pressure, and the gas in the gas storage bin 11 under such circumstances can still have sufficient force and action time on the windshield block 22 when the bin door 111 is opened; the bin door 111 of the present application adopts an axial opening and closing, and the axis of the bin door 111 adopts a one-way damping rotating shaft. When the push rod 23 moves to the highest point, the bin door 111 is stretched open and reaches the maximum opening degree. The bin door 111 is closed under the action of gravity with a delay of 0.5 to 1 second, which can leave enough time to release the airflow of the gas storage bin 11 to impact the windshield block 22.

[0057] Combined with the above description, refer to Figures 1 to 12When in use, the motor 24 drives the third transmission belt 282 at the set direction and speed, and the second driving shaft 274 rotates. Under the action of the fourth transmission belt 283, the first driving shaft 264 and the second driving shaft 274 rotate synchronously, and the first slider 261 and the second slider 271 rise synchronously. The lifting platform 21 rises at the set speed and leaves the base part 3 a specified distance. At this time, the packaged objects of the previous cycle are taken out by manual or mechanical hands, and the feeding part 4 delivers the materials required for film pressing to between the base part 3 and the lifting platform 21. Align the pre-punched area with the projection of the lifting platform 21 on the base portion 3; the lifting platform 21 rises to its highest point, the push rod 23 pushes open the door 111, the gas in the gas storage bin 11 rushes out and pushes the windshield block 22 to descend at a speed more than twice the ascending speed, the lifting platform 21 is naturally also forced to descend, the coil spring part 27414 of the spherical plunger 27412 shrinks to the maximum and pops out after a delay of 0.5 to 1 second, the ball part 27413 of the spherical plunger 27412 retracts back to the body and breaks away from the contact with the second shaft segment 2742, and the lifting platform is separated from the motor. Function: In the first half of the descent, the resistance received by the lifting platform 21 is less than the thrust of the gas in the gas storage bin 11. Subsequently, the lifting platform 21 descends more than half of the maximum descent distance, and the lifting platform 21 tears off the pre-punched area of the material required for film pressing. The resistance received by the lifting platform 21 (mainly the pressure of the air in the lower space of the piston cylinder 25) is greater than the thrust of the gas in the gas storage bin 11. At this time, the pressure of the air in the lower space of the piston cylinder 25 is higher than the atmospheric pressure, and part of the gas is supplied to the gas storage bin 11 in a one-way manner, reducing the energy consumption of the fan 13. The lifting platform 21 brings the pre-punched area of the material required for lamination that has been torn off to the base part 3, and applies uniform and gentle pressure to make the pressure-sensitive film wrap the packaged items. Then the speed of the lifting platform 21 drops to zero, the coil spring part 27414 of the spherical plunger 27412 pops out, and the ball part 27413 of the spherical plunger 27412 resumes contact with the second shaft segment 2742. The first shaft segment 2741 begins to transmit the second shaft segment 2742 at the set lifting speed of the lifting platform 21, and the lifting platform 21 begins to rise and enters the next cycle.

[0058] The present application can provide a faster film pressing speed and stable transmission, thereby improving the film pressing efficiency; at the same time, the motor 24 in the present application can always transmit the output in one direction, saving the time and loss effect of repeated changes of direction.

[0059] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A laminating machine, characterized in that: The film pressing machine includes an air storage part, a lifting part, a feeding part and a base part; The gas storage portion includes a gas storage bin, an exhaust passage fixedly connected to the bottom of the gas storage bin, and a fan for unidirectionally supplying gas to the gas storage bin. The gas storage bin includes a bin door for separating the gas storage bin and the exhaust passage. The bin door is an openable structure, and the opening direction of the bin door is toward the gas storage bin. The lifting part includes a lifting platform, a windshield block fixedly connected above the lifting platform, a push rod fixedly connected above the windshield block, and a motor driving the lifting platform. The windshield block always moves in the exhaust passage. The area of the windshield block is slightly smaller than that of the exhaust passage. When the windshield block moves to the highest point, the push rod can prop open the door to connect the gas storage bin with the exhaust passage. When the windshield block moves to the lowest point, the push rod is separated from the door, and the door is closed under the action of gravity, thereby separating the gas storage bin from the exhaust passage. The base portion is located below the lifting platform. When the lifting platform moves to the highest point, the lifting platform reaches a predetermined distance from the base portion. When the lifting platform moves to the lowest point, the lifting platform and the base portion are in zero-distance contact and the relative speed when in contact is not zero. The feeding part is a roller structure that feeds the materials required for lamination to the base part and the lifting platform.

2. The laminating machine according to claim 1, characterized in that A spring for buffering is provided at the bottom of the base portion.

3. The laminating machine according to claim 1, characterized in that The lifting platform is fixedly connected to a group of piston cylinders in a horizontal position, and the piston parts of the piston cylinders move in a vertical direction synchronously with the lifting platform.

4. The laminating machine according to claim 3, characterized in that The lower part of the piston cylinder is in one-way communication with the gas storage bin, so that when the piston part moves vertically, the gas in the lower part of the piston cylinder can be supplied to the gas storage bin in one direction.

5. The laminating machine according to claim 1, characterized in that The left and right sides of the lifting platform are fixedly connected to the first slider and the second slider respectively. The first slider and the second slider slide vertically along the first track and the second track respectively. The motor drives the lifting platform to rise and fall by driving the first slider and the second slider.

6. The laminating machine according to claim 5, characterized in that The first slider and the second slider are fixedly connected to a first transmission belt and a second transmission belt, respectively. The first transmission belt is driven by a first driving shaft and transmits power between the first driving shaft and a first driven shaft located below the first driving shaft. The second transmission belt is driven by a second driving shaft and transmits power between the second driving shaft and a second driven shaft located below the second driving shaft. The motor is provided with a third driving shaft directly driven by the motor. The third driving shaft is driven by the second driving shaft through a third transmission belt, and the second driving shaft is driven by the first driving shaft through a fourth transmission belt.

7. The laminating machine according to claim 6, characterized in that The second driving shaft is composed of a first shaft segment acted upon by the third transmission belt and a second shaft segment acted upon by the fourth transmission belt. The diameter of the first shaft segment is enlarged at the connection with the second shaft segment and the hollow part is set as a sleeve. At the connection, the sleeve of the first shaft segment wraps the second shaft segment to form a nested structure. A plurality of spherical plungers are evenly arranged on the wall of the sleeve, and the spherical part of the spherical plunger protrudes at least half of the spherical surface of the inner surface of the sleeve. The wrapped part of the second shaft segment is provided with a corresponding groove to just accommodate the protruding part of the spherical plunger. During transmission, only the protruding part of the spherical plunger acts on the second shaft segment to drive the second shaft segment.

8. The laminating machine according to claim 7, characterized in that: The ball portion of the spherical plunger is made of a material that is resistant to high temperatures, wear-resistant, has high hardness, and has good insulation properties.

9. The laminating machine according to claim 7, characterized in that: The ball portion of the spherical plunger is made of silicon nitride ceramics.

10. The laminating machine according to claim 7, characterized in that: When the first shaft segment transmits the second shaft segment at the lifting speed of the lifting platform, the expansion and contraction amount of the coil spring part of the spherical plunger is zero; when the second shaft segment actively rotates at more than twice the lifting speed, the contraction amount of the coil spring part of the spherical plunger reaches the maximum and pops out after a delay of 0.5 to 1 second, and the ball part of the spherical plunger retracts into the body and breaks away from contact with the second shaft segment.

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