Feeding equipment for laminating machine

Abstract

The present invention relates to the technical field of laminating machines, and discloses a feeding device of a laminating machine, including a main body component, including a support frame, a conveyor belt is arranged on the support frame, a feeding mechanism is arranged on one side of the support frame, and a laminating mechanism is arranged on the top of the support frame; a positioning component is arranged on the support frame, including a positioning piece, and a positioning piece is arranged on the support frame, including a movable plate, the movable plate is located on the inner side of the support frame, and a clamp is arranged on one side of the movable plate. The beneficial effects of the present invention are: through the arrangement of the positioning component, the soft sheet film can be centered to ensure that the film is always in the center during the conveying process, providing an accurate position basis for subsequent laminating and other processing procedures, improving processing accuracy and quality, and at the same time avoiding bending of the film during the centering process, reducing the creases and deformation of the film caused by bending, and ensuring the flatness and appearance quality of the film.

Description

Technical Field

[0001] The invention relates to the technical field of film laminating machines, in particular to a feeding device of a film laminating machine. Background Art

[0002] The laminating machine is a special equipment for paper and film. The laminating machine usually uses hot pressing or cold pressing to cover a layer of plastic film on the surface of the printed matter. By heating, pressurizing or using adhesives, the film is tightly combined with the printed matter, thereby protecting the surface of the printed matter, increasing the glossiness, and improving the wear resistance and waterproofness. After the laminating machine completes the feeding of the sheet film, the film needs to be centered when it moves on the conveyor belt. The positioning method of the existing technology is to clamp the two sides of the film in the center through the pulleys on both sides. This method can work when centering a sheet film with a harder material, but it is not effective for a film with a softer material. When centering, the film will bend during the center clamping process. The soft film will bend during the clamping process, which may cause local creases, deformation or even damage to the film, affecting the quality and appearance of the film. The bent film may not be able to fit tightly with the object to be coated during lamination, resulting in bubbles, wrinkles and other adverse conditions in the coating, reducing the lamination quality. Due to the bending of the film, the actual center position may deviate, and accurate center positioning cannot be achieved, affecting the accuracy of subsequent processing steps. When the clamping pulley is separated from the film, the elastic force will be released after the film is bent, which will cause the position of the film to shift again. Summary of the invention

[0003] In view of the above problems existing in the feeding equipment of the existing laminating machine, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that the centering of the soft sheet-like film is not accurate.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a feeding device of a laminating machine, comprising a main body component, including a support frame, a conveyor belt is arranged on the support frame, a feeding mechanism is arranged on one side of the support frame, and a laminating mechanism is arranged on the top of the support frame;

[0006] A positioning assembly is arranged on the support frame, including a positioning piece, which is arranged on the support frame and includes a movable plate. The movable plate is located on the inner side of the support frame, a clamping plate is arranged on one side of the movable plate, a connecting plate is fixed on one side of the clamping plate, through grooves are provided on the movable plate and the support frame, the connecting plate is movably connected to the through groove, and a force block is fixed on one side of the connecting plate.

[0007] As a preferred solution of the feeding device of the laminating machine described in the present invention, the positioning assembly also includes a cleaning member, which is arranged on one side of the clamping plate and includes a support rod, the support rod is located on one side of the clamping plate, and a cleaning block is fixed to one side of the support rod.

[0008] As a preferred solution of the feeding equipment of the laminating machine described in the present invention, wherein: a slot is provided on the clamping plate, a clamping block is movably connected in the slot, a slide rail is fixed to one side of the support rod, a slider is provided on the slide rail, a connecting rod is provided between the support rod and the clamping plate, both ends of the connecting rod are rotatably connected to the clamping block and the slider respectively through a rotating shaft, and the two connecting rods are rotatably connected at the center through a rotating shaft.

[0009] As a preferred solution of the feeding equipment of the laminating machine described in the present invention, wherein: a rotating column is rotatably connected in the slot through a bearing, a fixed shaft is fixed in the block, a spiral groove is opened on the rotating column, the fixed shaft slides in the spiral groove, a micro motor is arranged at one end of the rotating column, and the output shaft of the micro motor is fixed to the rotating column.

[0010] As a preferred solution of the feeding equipment of the laminating machine described in the present invention, the positioning assembly also includes a locking piece, which is arranged on the connecting plate, including a fixing rod, the fixing rod is fixed to the top of the connecting plate, and a movable groove is opened on the fixing rod, and a limiting block is arranged in the movable groove, a first spring is fixed on one side of the limiting block, and the other end of the first spring is fixed to the inner wall of the movable groove.

[0011] As a preferred solution of the feeding equipment of the laminating machine described in the present invention, wherein: a push rod is inserted into the fixed rod, a force groove is opened on the limit block, the push rod cooperates with the force groove, a guide rod is fixed on the inner side of the support frame, one side of the guide rod is inclined, and the guide rod cooperates with the push rod.

[0012] As a preferred solution of the feeding equipment of the laminating machine described in the present invention, wherein: a connecting block is fixed on the top of the movable plate, a supporting block is fixed on the top of the supporting frame, a threaded rod is rotatably connected to the support block through a bearing, the threaded rod is threadedly connected to the connecting block, a driving motor is arranged at one end of the threaded rod, and the output shaft of the driving motor is fixed to the threaded rod.

[0013] As a preferred solution of the feeding device of the laminating machine of the present invention, a positioning block is fixed on one side of the movable plate, a stabilizing column is fixed on one side of the clamping plate, and the stabilizing column is movably connected with the positioning block.

[0014] As a preferred solution of the feeding device of the laminating machine described in the present invention, a mounting block is fixed to the end of the stabilizing column, a second spring is sleeved on the outside of the stabilizing column, and both ends of the second spring are respectively fixed to the mounting block and the positioning block.

[0015] As a preferred solution of the feeding device of the laminating machine described in the present invention, wherein: the feeding mechanism includes a support track, the support track is arranged on the support frame, a discharge platform is arranged on one side of the support frame, and a feeding suction cup is arranged on the support track.

[0016] The beneficial effects of the present invention are as follows: by setting the positioning component, the soft sheet film can be centered, ensuring that the film is always in the center during the transportation process, providing an accurate position basis for subsequent processing steps such as lamination, improving processing accuracy and quality, and at the same time avoiding bending of the film during the centering process, reducing creases, deformation and other problems caused by bending of the film, and ensuring the flatness and appearance quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is an overall diagram of the feeding equipment of the laminating machine.

[0019] Figure 2 This is a structural diagram of the positioning components of the feeding equipment of the laminating machine.

[0020] Figure 3 This is a side view of the positioning parts of the feeding equipment of the laminating machine.

[0021] Figure 4 For feeding equipment of laminating machine Figure 3 A partial enlarged structural diagram in the middle.

[0022] Figure 5 This is a partial cross-sectional structural diagram of the support frame of the laminating machine's feeding equipment.

[0023] Figure 6 For feeding equipment of laminating machine Figure 5 A partial enlarged structural diagram of point B in the middle.

[0024] Figure 7 This is a cross-sectional structural diagram of the splint of the feeding equipment of the laminating machine.

[0025] Figure 8This is a structural diagram of the cleaning parts of the feeding equipment of the laminating machine.

[0026] Fig. 9 This is a cross-sectional structural diagram of the clamp block of the laminating machine's feeding equipment.

[0027] In the figure: 100, main assembly; 101, support frame; 102, conveyor belt; 103, feeding mechanism; 104, laminating mechanism; 200, positioning assembly; 201, positioning member; 201a, movable plate; 201b, clamping plate; 201c, connecting plate; 101-1, through groove; 201d, force block; 202, cleaning member; 202a, support rod; 202b, cleaning block; 201b-1, card slot; 202i, card block; 202c, slide rail; 202d, slider; 202e, connecting rod; 202f, rotating column; 202g, fixed shaft; 202f-1 , spiral groove; 202h, micro motor; 203, locking piece; 203a, fixed rod; 203a-1, movable groove; 203b, limit block; 203c, first spring; 203d, push rod; 203b-1, force groove; 203e, guide rod; 205, connecting block; 206, support block; 207, threaded rod; 208, drive motor; 201b-2, positioning block; 201b-3, stabilizing column; 201b-4, mounting block; 201b-5, second spring; 103-1, support track; 103-2, material discharge platform; 103-3, material loading suction cup. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Embodiment 1

[0031] Reference Figure 1-Figure 3, which is the first embodiment of the present invention, and this embodiment provides a feeding device for a laminating machine. The feeding device for the laminating machine includes a main body component 100, including a support frame 101, a conveyor belt 102 is arranged on the support frame 101, a loading mechanism 103 is arranged on one side of the support frame 101, and a laminating mechanism 104 is arranged on the top of the support frame 101.

[0032] The support frame 101 is used to support the conveyor belt 102, and the conveyor belt 102 is used to transport the sheet film that needs to be coated. The feeding mechanism 103 is used to feed the sheet film, and the sheet film is coated by the coating mechanism 104. This is the existing technology and will not be elaborated in this solution.

[0033] The positioning assembly 200 is arranged on the support frame 101, including a positioning member 201, which is arranged on the support frame 101 and includes a movable plate 201a. The movable plate 201a is located on the inner side of the support frame 101, a clamping plate 201b is arranged on one side of the movable plate 201a, a connecting plate 201c is fixed on one side of the clamping plate 201b, a through groove 101-1 is opened on the movable plate 201a and the support frame 101, the connecting plate 201c is movably connected to the through groove 101-1, and a force block 201d is fixed on one side of the connecting plate 201c.

[0034] There are two groups of positioning members 201 , which are respectively located on both sides of the conveyor belt 102 . The two groups of positioning members 201 can simultaneously position both sides of the sheet-like film.

[0035] There are two clamping plates 201b in a set of positioning members 201, which are respectively located above and below one side of the movable plate 201a. The number of connecting plates 201c and force blocks 201d corresponds to that of the clamping plates 201b, and one side of the force block 201d is inclined.

[0036] A protective pad is fixed on the side where the two clamping plates 201b are close to each other, so as to prevent the sheet-like film from being damaged when the clamping plates 201b clamp the sheet-like film.

[0037] When the movable plates 201a on both sides move in the center and contact the sheet film on the top of the conveyor belt 102, the force block 201d will enter the through groove 101-1, and the inclined surface of the force block 201d will be squeezed by the inside of the through groove 101-1, and the connecting plate 201c will be driven to move through the force block 201d, so that the connecting plate 201c drives the clamping plate 201b to move. When the side of the sheet film is completely in contact with the movable plate 201a and flush, the center positioning of the sheet film is completed. At the same time, the clamping plate 201b will clamp and fix the sheet film to prevent the sheet film from being displaced. At the same time, the movable plate 201a will drive the clamping plate 201b to move in the opposite direction. At this time, the clamping plate 201b will apply a tensile force to the sheet film on both sides, so as to automatically release the elastic force of the sheet film after bending, and the tensile force applied to the sheet film can flatten the wrinkles on the surface of the sheet film, so as to avoid the situation in which the uneven surface of the sheet film during the lamination process will lead to poor lamination quality.

[0038] When the clamping plates 201b stretch the sheet film with a certain force, the two clamping plates 201b will separate from the sheet film, thereby avoiding the situation where the sheet film is damaged due to excessive stretching of the sheet film. Embodiment 2

[0039] Reference Figure 1-Figure 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0040] Specifically, the positioning assembly 200 further includes a cleaning member 202, which is disposed on one side of the clamping plate 201b and includes a support rod 202a, the support rod 202a is located on one side of the clamping plate 201b, and a cleaning block 202b is fixed to one side of the support rod 202a.

[0041] There are two groups of cleaning members 202, which are respectively located on one side of the clamping plate 201b above both sides of the conveyor belt 102. The support rod 202a is used to support the cleaning block 202b and drive the cleaning block 202b to move. The bottom of the cleaning block 202b has a wiping cleaning effect.

[0042] When the movable plate 201a moves toward the position of the sheet film, the support rod 202a will drive the cleaning block 202b to move away from the clamping plate 201b. When the clamping plate 201b completes clamping the sheet film, the cleaning blocks 202b on both sides will move to the center position of the top of the sheet film and contact with the top of the sheet film. At this time, the bending degree of the sheet film can be limited by the cleaning block 202b, reducing the bending degree of the sheet film when it is squeezed, thereby avoiding the situation where excessive bending of the sheet film affects the coating effect.

[0043] When the movable plate 201a moves away from the sheet film, the support rod 202a will drive the cleaning block 202b to move towards the clamping plate 201b. When the cleaning block 202b moves, it can clean the top of the sheet film to avoid impurities remaining on the top of the sheet film, which will affect the coating quality.

[0044] Specifically, a slot 201b-1 is provided on the splint 201b, and a block 202i is movably connected in the slot 201b-1. A slide rail 202c is fixed to one side of the support rod 202a, and a slider 202d is provided on the slide rail 202c. A connecting rod 202e is provided between the support rod 202a and the splint 201b. Both ends of the connecting rod 202e are rotatably connected to the block 202i and the slider 202d respectively through a rotating shaft, and the two connecting rods 202e are rotatably connected at the center through a rotating shaft.

[0045] The slide rail 202c is used to support and position the slider 202d. There are two sliders 202d, which are located at both ends of the slide rail 202c respectively. There are two blocks 202i, which are located on both sides of the inside of the slot 201b-1 respectively. The block 202i is T-shaped. There are two connecting rods 202e, which are arranged in a cross shape and placed up and down.

[0046] When the two blocks 202i move toward a close position, one end of the two connecting rods 202e will move toward each other, and the other end of the two connecting rods 202e will push the slider 202d to move, thereby driving the support rod 202a to move away from the clamping plate 201b through the slider 202d.

[0047] When the two blocks 202i move away from each other, the connecting rod 202e can drive the slider 202d and the support rod 202a to move toward the clamping plate 201b.

[0048] Specifically, a rotating column 202f is rotatably connected to the slot 201b-1 through a bearing, a fixed shaft 202g is fixed in the block 202i, a spiral groove 202f-1 is opened on the rotating column 202f, and the fixed shaft 202g slides in the spiral groove 202f-1. A micro motor 202h is set at one end of the rotating column 202f, and the output shaft of the micro motor 202h is fixed to the rotating column 202f.

[0049] There are two spiral grooves 202f-1, which are located at both ends of the rotating column 202f. The threads of the two spiral grooves 202f-1 are set in opposite directions. The rotating column 202f is driven to rotate by the micro motor 202h. When the rotating column 202f rotates, the fixed shaft 202g will slide in the spiral groove 202f-1. Through the cooperation of the two, the block 202i can be driven to move to a closer position or a farther position.

[0050] Specifically, the positioning assembly 200 also includes a locking member 203, which is arranged on the connecting plate 201c, including a fixed rod 203a, the fixed rod 203a is fixed to the top of the connecting plate 201c, and a movable groove 203a-1 is opened on the fixed rod 203a, and a limiting block 203b is arranged in the movable groove 203a-1. A first spring 203c is fixed to one side of the limiting block 203b, and the other end of the first spring 203c is fixed to the inner wall of the movable groove 203a-1.

[0051] The fixing rod 203a is fixed to the top of the lower connecting plate 201c, and a socket is provided on the upper connecting plate 201c. The fixing rod 203a is movably connected with the socket. When the two connecting plates 201c move to the center and contact each other, the first spring 203c applies a thrust to the limit block 203b, so that the limit block 203b moves to the outside of the movable groove 203a-1, and the bottom of the limit block 203b contacts the upper connecting plate 201c, so that the two connecting plates 201c can be locked, and the two clamping plates 201b can be locked, so that the clamping plates 201b can continue to clamp and fix the sheet film.

[0052] Specifically, a push rod 203d is inserted into the fixed rod 203a, a force groove 203b-1 is opened on the limit block 203b, and the push rod 203d cooperates with the force groove 203b-1. A guide rod 203e is fixed on the inner side of the support frame 101, one side of the guide rod 203e is inclined, and the guide rod 203e cooperates with the push rod 203d.

[0053] The inner wall of the force groove 203b-1 is inclined. When the movable plate 201a moves in the direction away from the sheet film and the clamping plate 201b completes the stretching of the sheet film, the top of the push rod 203d will contact the guide rod 203e and move along the inclined direction of the guide rod 203e. At this time, the guide rod 203e applies a downward thrust to the push rod 203d, and the push rod 203d squeezes the inclined surface of the inner wall of the force groove 203b-1. Through the cooperation of the two, the limit block 203b can be driven to move, so that the limit block 203b enters the movable groove 203a-1, and releases the restriction on the connecting plate 201c, so that the two connecting plates 201c can be separated, and then the clamping plate 201b can release the clamping fixation of the sheet film. Embodiment 3

[0054] Reference Figure 1-Figure 9 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0055] Specifically, a connecting block 205 is fixed on the top of the movable plate 201a, and a supporting block 206 is fixed on the top of the supporting frame 101. A threaded rod 207 is rotatably connected to the supporting block 206 through a bearing. The threaded rod 207 is connected to the inner thread of the connecting block 205. A driving motor 208 is provided at one end of the threaded rod 207, and the output shaft of the driving motor 208 is fixed to the threaded rod 207.

[0056] The number of connecting blocks 205 corresponds to the movable plate 201a. There are two supporting blocks 206, which are respectively fixed on both sides of the top of the support frame 101. The supporting blocks 206 are used to support the threaded rod 207. The threads at both ends of the threaded rod 207 are set in opposite directions. The threaded rod 207 is driven to rotate by the driving motor 208. The threaded rod 207 drives the movable plate 201a to move through the cooperation of the connecting block 205, so that the movable plate 201a can move in a direction away from the sheet film or close to the sheet film.

[0057] Specifically, a positioning block 201b-2 is fixed to one side of the movable plate 201a, and a stabilizing column 201b-3 is fixed to one side of the clamping plate 201b. The stabilizing column 201b-3 is movably connected to the positioning block 201b-2.

[0058] The stabilizing column 201b - 3 and the positioning block 201b - 2 are provided to support and position the clamping plate 201b , thereby preventing the clamping plate 201b from deviating when moving.

[0059] Specifically, a mounting block 201b-4 is fixed to the end of the stabilizing column 201b-3, a second spring 201b-5 is sleeved on the outside of the stabilizing column 201b-3, and two ends of the second spring 201b-5 are respectively fixed to the mounting block 201b-4 and the positioning block 201b-2.

[0060] The second spring 201b-5 applies a thrust to the mounting block 201b-4. When the connection plate 201c is released from restriction, the second spring 201b-5 can push the mounting block 201b-4 to move, and the mounting block 201b-4 can drive the stabilizing column 201b-3 and the clamping plate 201b to move, so that the two clamping plates 201b can be separated.

[0061] Specifically, the feeding mechanism 103 includes a support rail 103-1, the support rail 103-1 is arranged on the support frame 101, a material discharge platform 103-2 is arranged on one side of the support frame 101, and a feeding suction cup 103-3 is arranged on the support rail 103-1.

[0062] The support rail 103-1 is used to support the loading suction cup 103-3 and enable the loading suction cup 103-3 to move. The discharge platform 103-2 is used to place the sheet film that needs to be coated, and the sheet film is loaded sequentially through the loading suction cup 103-3.

[0063] In summary, the feeding equipment of the laminating machine has the following advantages:

[0064] Able to stably center soft sheet films;

[0065] It avoids the bending of the film during the centering process, and reduces the problems of creases and deformation caused by bending of the film.

[0066] The film surface can be cleaned to remove dust, impurities and other pollutants, ensuring the cleanliness of the film surface and improving the quality and adhesion of the coating.

[0067] When in use, the sheet film to be coated is moved to the top of the conveyor belt 102 by the loading suction cup 103-3, and the sheet film is transported by the conveyor belt 102. When the sheet film moves to the middle position between the two movable plates 201a, the drive motor 208 is started to drive the threaded rod 207 to rotate, and the threaded rod 207 drives the movable plate 201a to move through the cooperation of the connecting block 205.

[0068] When the movable plates 201a on both sides move in the center and contact the sheet film on the top of the conveyor belt 102, the force block 201d will enter the through groove 101-1, and the inclined surface of the force block 201d will be squeezed by the inside of the through groove 101-1, and the connecting plate 201c will be driven to move through the force block 201d, so that the connecting plate 201c drives the clamping plate 201b to move. When the side of the sheet film is completely in contact with the movable plate 201a and flush, the center positioning of the sheet film is completed. At this time, the clamping plate 201b will clamp and fix the sheet film to prevent the sheet film from displacement.

[0069] When the movable plate 201a moves toward the position of the sheet film, the support rod 202a will drive the cleaning block 202b to move away from the clamping plate 201b. When the clamping plate 201b completes clamping the sheet film, the cleaning blocks 202b on both sides will move to the center position of the top of the sheet film and contact with the top of the sheet film. At this time, the bending degree of the sheet film can be limited by the cleaning block 202b, reducing the bending degree of the sheet film when it is squeezed, thereby avoiding the situation where excessive bending of the sheet film affects the coating effect.

[0070] At this time, the threaded rod 207 and the connecting block 205 cooperate to drive the movable plate 201a to move in the opposite direction, and the movable plate 201a will drive the clamping plate 201b to move in the opposite direction. At this time, the clamping plate 201b applies a tensile force to both sides of the sheet film, so as to automatically release the elastic force of the sheet film after bending, and the tensile force applied to the sheet film can flatten the wrinkles on the surface of the sheet film, so as to avoid the situation in which the uneven surface of the sheet film will lead to poor lamination quality during the lamination process. When the clamping plate 201b stretches the sheet film with a certain force, the two clamping plates 201b will separate from the sheet film, so as to avoid the situation in which the sheet film is damaged due to excessive stretching of the sheet film.

[0071] When the movable plate 201a moves away from the sheet film, the support rod 202a will drive the cleaning block 202b to move towards the clamping plate 201b. When the cleaning block 202b moves, it can clean the top of the sheet film to avoid impurities remaining on the top of the sheet film, which will affect the coating quality.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A feeding device for a laminating machine, characterized in that: include, The main body component (100) comprises a support frame (101), a conveyor belt (102) is arranged on the support frame (101), a loading mechanism (103) is arranged on one side of the support frame (101), and a laminating mechanism (104) is arranged on the top of the support frame (101); A positioning assembly (200) is arranged on the support frame (101), comprising a positioning member (201), which is arranged on the support frame (101) and comprises a movable plate (201a), wherein the movable plate (201a) is located inside the support frame (101), a clamping plate (201b) is arranged on one side of the movable plate (201a), a connecting plate (201c) is fixed on one side of the clamping plate (201b), a through slot (101-1) is provided on the movable plate (201a) and the support frame (101), the connecting plate (201c) is movably connected to the through slot (101-1), and a force-bearing block (201d) is fixed on one side of the connecting plate (201c); The positioning assembly (200) further comprises a locking member (203), which is arranged on the connecting plate (201c) and comprises a fixing rod (203a), wherein the fixing rod (203a) is fixed to the top of the connecting plate (201c), a movable groove (203a-1) is provided on the fixing rod (203a), a limiting block (203b) is provided in the movable groove (203a-1), a first spring (203c) is fixed to one side of the limiting block (203b), and the other end of the first spring (203c) is fixed to the inner wall of the movable groove (203a-1); A push rod (203d) is inserted into the fixed rod (203a), a force groove (203b-1) is provided on the limit block (203b), the push rod (203d) cooperates with the force groove (203b-1), a guide rod (203e) is fixed on the inner side of the support frame (101), one side of the guide rod (203e) is inclined, and the guide rod (203e) cooperates with the push rod (203d); A connecting block (205) is fixed on the top of the movable plate (201a), a supporting block (206) is fixed on the top of the supporting frame (101), a threaded rod (207) is rotatably connected to the support block (206) via a bearing, the threaded rod (207) is connected to the internal thread of the connecting block (205), a driving motor (208) is provided at one end of the threaded rod (207), and an output shaft of the driving motor (208) is fixed to the threaded rod (207).

2. The feeding device of the laminating machine according to claim 1, characterized in that: The positioning assembly (200) further comprises a cleaning member (202), which is arranged on one side of the clamping plate (201b) and comprises a support rod (202a), wherein the support rod (202a) is located on one side of the clamping plate (201b), and a cleaning block (202b) is fixed to one side of the support rod (202a).

3. The feeding device of the laminating machine according to claim 2, characterized in that: The clamping plate (201b) is provided with a slot (201b-1), a block (202i) is movably connected in the slot (201b-1), a slide rail (202c) is fixed to one side of the support rod (202a), a slider (202d) is provided on the slide rail (202c), a connecting rod (202e) is provided between the support rod (202a) and the clamping plate (201b), both ends of the connecting rod (202e) are rotatably connected to the block (202i) and the slider (202d) respectively via a rotating shaft, and the centers of the two connecting rods (202e) are rotatably connected via a rotating shaft.

4. The feeding device of the laminating machine according to claim 3, characterized in that: A rotating column (202f) is rotatably connected in the clamping groove (201b-1) via a bearing, a fixed shaft (202g) is fixed in the clamping block (202i), a spiral groove (202f-1) is provided on the rotating column (202f), the fixed shaft (202g) slides in the spiral groove (202f-1), a micro motor (202h) is provided at one end of the rotating column (202f), and an output shaft of the micro motor (202h) is fixed to the rotating column (202f).

5. The feeding device of the laminating machine according to claim 4, characterized in that: A positioning block (201b-2) is fixed on one side of the movable plate (201a), a stabilizing column (201b-3) is fixed on one side of the clamping plate (201b), and the stabilizing column (201b-3) is movably connected to the positioning block (201b-2).

6. The feeding device of the laminating machine according to claim 5, characterized in that: A mounting block (201b-4) is fixed to the end of the stabilizing column (201b-3), a second spring (201b-5) is sleeved on the outside of the stabilizing column (201b-3), and two ends of the second spring (201b-5) are respectively fixed to the mounting block (201b-4) and the positioning block (201b-2).

7. The feeding device of the laminating machine according to claim 6, characterized in that: The loading mechanism (103) comprises a support track (103-1), the support track (103-1) is arranged on the support frame (101), a material discharge platform (103-2) is arranged on one side of the support frame (101), and a loading suction cup (103-3) is arranged on the support track (103-1).

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