Automatic sheet stock stripping machine

Abstract

The utility model relates to the technical field of surface mounting processing, in particular to an automatic sheet stock stripping machine which comprises a machine case, and a sheet stock storage bin, a waste film recovery bin and a label suction area are sequentially arranged in the machine case in the length direction. The sheet stock positioning mechanism is arranged in the sheet stock storage bin, and the sheet stock positioning mechanism is provided with a group of clamping plates and an adjusting assembly for adjusting the clamping plates to be close to each other; the clamping and stripping mechanism is arranged on the waste film recycling bin, and the clamping mechanism is provided with a waste film blowing-off assembly and a clamping assembly; the label suction assembly is arranged in the label suction area and is provided with an air suction plate; the sheet material conveying mechanism is arranged on the machine box in a sliding mode, and the sheet material conveying mechanism comprises a lifting assembly, an adsorption assembly and a driving assembly. According to the utility model, the automatic taking, stripping and feeding of sheet materials can be realized without manual assistance, the feeding action is completely automatic and can be stably carried out, the production efficiency is greatly improved, and all the mechanisms in the whole machine are integrated together, so that the structure is compact, and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of mounting processing, in particular to an automatic sheet material stripping machine. Background Art

[0002] The application of existing roll-type automatic stripping is becoming mature, and most of the feeders on the market are for roll stripping. Most of the stripping of sheet materials needs to be customized, which leads to the fact that the attachment of sheet materials and auxiliary materials on most production lines is still done manually, wasting a lot of manpower costs and the attachment accuracy cannot be guaranteed. And because there are many types of sheet materials, non-standard customized sheet material stripping mechanisms will waste a lot of manpower costs and are prone to failure. On the one hand, the sheet material feeders on the market are uneven, and on the other hand, they have high requirements for sheet materials and poor compatibility, which cannot meet the factory's diversified product production needs. Utility Model Content

[0003] The utility model aims to provide an automatic sheet material stripping machine to achieve the purpose of automatically stripping sheets and satisfying the purpose of stripping sheets of different sizes, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: an automatic sheet stripping machine, comprising:

[0005] The chassis has a sheet storage bin, a waste film recovery bin and a label suction area arranged in sequence along the length direction;

[0006] The sheet positioning mechanism is arranged in the sheet storage bin, and is used to position and gradually lift the sheet, and comprises a set of clamping plates and an adjusting component for adjusting the clamping plates to be close to each other;

[0007] A clamping and peeling mechanism is provided in the waste film recovery bin, and the clamping mechanism is used to clamp the bottom film, peel off the bottom film, and blow the peeled bottom film into the waste film recovery bin, and it has a waste film blowing component and a clamping component;

[0008] The label suction component is arranged in the label suction area, and is used for sucking the sheet material, and has a suction plate;

[0009] The sheet material conveying mechanism is slidably mounted on the chassis, and the sheet material conveying mechanism reciprocates along the sheet material storage bin, the waste film recovery bin, and the label suction area to grab and convey the sheet material, and includes a lifting component, an adsorption component, and a driving component;

[0010] The adsorption component on the sheet conveying mechanism sucks the sheet in the sheet positioning mechanism, and the sheet conveying mechanism moves the sheet to the clamping and peeling mechanism. The clamping component clamps the bottom film of the sheet. At the same time, the sheet conveying mechanism pulls the edge material to move toward the label suction component, so that the bottom film peels off the sheet and the sheet is adsorbed by the suction plate.

[0011] A further solution is: the sheet material positioning mechanism also has a silo lifting plate slidably arranged in the sheet material storage bin, and a motor and a rack mechanism fixed inside the sheet material storage bin for driving the silo lifting plate to rise and fall. The clamp passes through the silo lifting plate, and the silo lifting plate is provided with a movable groove for the clamps to be brought close to each other. The silo lifting plate between a group of clamps is provided with an installation groove, and the installation groove is provided with an adjustment baffle that can adjust the front and rear position.

[0012] A further solution is: an adjustment component is arranged under the silo lifting plate, and the adjustment component includes a two-way screw rod rotatably arranged on the box body and a guide slide rod arranged on both sides of the two-way screw rod and parallel to the two-way screw rod, a group of splints are respectively arranged at both ends of the two-way screw rod and are threadedly connected to the two-way screw rod, the splints are connected to the guide slide rod through a linear bearing, and a handwheel for rotating the two-way screw rod is provided at one end of the two-way screw rod. The handwheel rotates the two-way screw rod to make the splints on both sides move closer to or away from each other.

[0013] A further solution is: the clamping assembly includes a bottom paper stripping base plate slidably arranged on one side of the waste film recovery bin and a first driving member arranged on one side of the waste film recovery bin for driving the bottom paper stripping base plate to rise and fall; a pressure plate is arranged at the upper end of the bottom paper stripping base plate and toward the waste film recovery bin; a pressure plate and a second driving member driving the pressure plate to rise and fall are slidably arranged on the side of the bottom paper stripping base plate; a plurality of first mounting positions are evenly arranged on the top of the pressure plate; a pressure block facing one side of the pressure plate and cooperating with the pressure plate to press the bottom film is installed on at least one of the first mounting positions; anti-slip inclined grooves are arranged on the surface of the pressure plate and the bottom surface of the pressure block; the second driving member drives the pressure plate to descend so that the pressure plate and the pressure block are clamped together.

[0014] A further solution is: the waste film blowing assembly includes an air pipe seat and a universal curved pipe connected to the bottom of the air pipe for ventilation, the air outlet end of the universal curved pipe faces the pressure plate, and the air pipe seat is provided with an air pipe connector.

[0015] A further solution is: the sheet conveying mechanism also has a truss assembly, the driving assembly is connected to the truss assembly, and is driven to move by the truss assembly. The lifting assembly and the adsorption assembly are arranged on the truss assembly. The truss assembly includes a linear guide group fixed on both sides of the box body and a truss slidably arranged on the linear guide group.

[0016] A further solution is: the adsorption component includes a label suction lifting plate which is arranged on the lifting component and driven to rise and fall by the lifting component, and a plurality of second mounting positions are evenly arranged on the label suction lifting plate, and a suction nozzle mounting plate is installed on at least one of the second mounting positions, and a plurality of suction cups are arranged on the suction nozzle mounting plate. The adsorption component also includes a diverter plate which is arranged on the truss and connected to the suction cup through a hose, and a negative pressure gauge is arranged on the diverter plate, and sliding rods which are slidably connected to the truss through linear bearings are arranged on both sides of the label suction lifting plate.

[0017] A further solution is: the lifting assembly includes a third driving member whose output end passes through the truss and a vacuum generator arranged on the truss and connected to the third driving member through a hose, and the vacuum generator is connected to the diverter plate through the hose.

[0018] A further solution is: a turnover box is placed in the waste film recovery bin, a sliding opening is provided on one side of the box body of the waste film recovery bin, the turnover box is placed into the waste film recovery bin through the sliding opening, and a handle is provided on the turnover box.

[0019] A further solution is: it also includes a controller for controlling the coordinated operation of the sheet positioning mechanism, the clamping and peeling mechanism, the label suction component and the sheet conveying mechanism, and a box for placing the controller is provided on one side of the chassis.

[0020] The beneficial effects of the utility model are as follows: the utility model can realize automatic material taking, stripping and feeding of sheets without manual assistance, the feeding action is fully automated and can be carried out stably, and the production efficiency is greatly improved, and the various mechanisms in the whole machine are integrated together, the structure is relatively compact, and the space occupied is small, and it can be used for stripping sheets of various sizes, and has strong compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model from one perspective;

[0023] Figure 3 It is a structural schematic diagram of the sheet positioning mechanism in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the clamping and peeling mechanism in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the sheet material conveying mechanism in the utility model;

[0026] Figure 6 It is a structural schematic diagram of the mark suction component in the utility model. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0030] See also Figure 1 and Figure 2 The present embodiment provides an automatic sheet stripping machine, comprising a chassis 10, a sheet positioning mechanism 20, a clamping and stripping mechanism 30, a label suction component 40, a sheet conveying mechanism 50 and a controller 60. A box for placing the controller 60 is provided on one side of the chassis 10. The controller 60 is mainly used to control the coordinated operation of the sheet positioning mechanism 20, the clamping and stripping mechanism 30, the label suction component 40 and the sheet conveying mechanism 50. A sheet storage bin 101, a waste film recovery bin 102 and a label suction area 103 are sequentially provided in the chassis 10 along the length direction. The sheet positioning mechanism 20 is provided in the sheet storage bin 101, which is used to position and gradually lift the sheet. The clamping and stripping mechanism 30 is provided in the waste film recovery bin 102, which is used to clamp the bottom film and strip the bottom film and blow the stripped bottom film into the waste film recovery bin 10. 2; the label suction component 40 is arranged in the label suction area 103, which is used to absorb the sheet; the sheet conveying mechanism 50 is slidably arranged on the chassis 10, and reciprocates along the sheet storage bin 101, the waste film recovery bin 102 and the label suction area 103, and is used to grab and convey the sheet, and the adsorption component 503 on the sheet conveying mechanism 50 absorbs the sheet in the sheet positioning mechanism 20, and the sheet conveying mechanism 50 moves the sheet to the clamping and peeling mechanism 30, and the clamping component 302 clamps the bottom film of the sheet, and at the same time, the sheet conveying mechanism 50 pulls the edge material to move toward the label suction component 40, so that the bottom film is peeled off the sheet, and the sheet is adsorbed by the air suction plate 401. After the bottom film is peeled off, the clamping component 302 releases the bottom film, and the waste film blowing component 301 blows off the bottom film on the clamping component 302, so that the bottom film falls into the waste film recovery bin 102.

[0031] In this example, see Figure 3The sheet positioning mechanism 20 includes a group of clamping plates 201, an adjusting component 202, a silo lifting plate 203, a motor and a rack mechanism. Vertical slide rail groups 1011 are vertically arranged on the opposite side walls of the sheet storage bin 101. The silo lifting plate 203 is slidably connected to the vertical slide rail group 1011 through a slider. The adjusting component 202 is arranged at the bottom of the silo lifting plate 203. A group of clamping plates 201 are arranged on the adjusting component 202. The clamping plates 201 pass through the silo lifting plate 203, and the silo lifting plate 203 is provided with a movable notch 2031 for the clamping plates 201 to be brought close to each other; in addition, the silo lifting plate 203 between a group of clamping plates 201 is provided with an installation groove 2032, and an adjustment baffle 204 that can adjust the front and rear positions is arranged in the installation groove 2032. The adjusting component 202 drives a group of The clamping plates 201 are close to each other. According to the size of the sheet material, a group of clamping plates 201 are driven to move closer or farther from each other through the adjusting component 202, and the front and rear positions of the adjusting baffles 204 are adjusted to position the sheet material on the silo lifting plate 203. In order to cooperate with the sheet material conveying mechanism 50 to absorb the sheet material, the motor and the rack mechanism are arranged at the bottom of the sheet material storage bin 101, and the silo lifting plate 203 is driven to be gradually lifted by the motor and the rack mechanism to reduce the lifting stroke of the sheet material conveying mechanism 50 and improve efficiency. In this embodiment, the motor and the rack mechanism adopt the existing technology, which is mainly composed of a motor, a rack and a gear. The rack is installed at the bottom of the silo lifting plate 203 through a vertical plate, and the motor is fixed at the bottom of the sheet material storage bin 101. The rack and gear meshing transmission is adopted, and the transmission precision is high.

[0032] Among them, the adjustment component 202 includes a two-way screw rod 2021 rotatably arranged on the box body and a guide slide rod 2022 arranged on both sides of the two-way screw rod 2021 and parallel to the two-way screw rod 2021. A group of splints 201 are respectively arranged at both ends of the two-way screw rod 2021 and are threadedly connected to the two-way screw rod 2021. The splint 201 is connected to the guide slide rod 2022 through a linear bearing. One end of the two-way screw rod 2021 is provided with a handwheel 205 for rotating the two-way screw rod 2021. When adjustment is required, the handwheel 205 rotates the two-way screw rod 2021 counterclockwise or clockwise to make the two sides of the splints 201 move closer or farther away from each other to adjust the distance between the two splints 201 for positioning the sheet material.

[0033] In this example, see Figure 4The clamping and stripping mechanism 30 includes a waste film blowing component 301 and a clamping component 302. The clamping component 302 is mainly used to clamp the bottom film of the sheet material. The clamping component 302 includes a bottom paper stripping bottom plate 3021 slidably arranged on one side of the waste film recovery bin 102 and a first driving member 3022 arranged on one side of the waste film recovery bin 102 for driving the bottom paper stripping bottom plate 3021 to rise and fall. A pressing plate 3023 is arranged on the upper end of the bottom paper stripping bottom plate 3021 and toward the side of the waste film recovery bin 102. A pressing plate 3024 and a second driving member 3025 for driving the pressing plate 3024 to rise and fall are slidably arranged on the side of the bottom paper stripping bottom plate 3021. A plurality of first mounting members 3024 are evenly arranged on the top of the pressing plate 3024. The mounting positions 3026, at least on one of the first mounting positions 3026, a pressing block 3027 is mounted facing one side of the pressing plate 3023 and cooperating with the pressing plate 3023 to press the bottom film, and the surface of the pressing plate 3023 and the bottom surface of the pressing block 3027 are provided with anti-slip inclined grooves, and the second driving member 3025 drives the pressing plate 3024 to descend so that the pressing plate 3023 and the pressing block 3027 are clamped together. A plurality of first mounting positions 3026 are provided, and the position of the pressing block 3027 can be adjusted to facilitate the cooperation with the pressing plate 3023 to press the bottom film of sheets of different sizes; and the first driving member 3022 is provided to adjust the height of the bottom paper peeling bottom plate 3021, so as to reduce the lifting stroke of the sheet conveying mechanism 50 and improve efficiency.

[0034] The waste film blowing assembly 301 mainly blows the bottom film away from the pressure plate 3023. The waste film blowing assembly 301 includes an air pipe seat and a universal curved tube 3011 connected to the bottom of the air pipe for ventilation. The air outlet end of the universal curved tube 3011 faces the pressure plate 3023. The air pipe seat is provided with an air pipe connector. Different blowing directions can be adjusted through the universal curved tube 3011 to adapt to the use of sheets of different sizes. It is highly practical.

[0035] In this example, see Figure 5 The sheet material conveying mechanism 50 includes a truss assembly 501, a lifting assembly 502, an adsorption assembly 503 and a driving assembly 504. The lifting assembly 502 and the adsorption assembly 503 are arranged on the truss assembly 501. The driving assembly 504 is connected to the truss assembly 501 and drives the truss assembly 501 to reciprocate along the sheet material positioning mechanism 20, the clamping and peeling mechanism 30 and the label suction assembly 40. The truss assembly 501 includes a linear guide rail group 5011 fixed on both sides of the box body and a truss 5012 slidably arranged on the linear guide rail group 5011. The driving assembly 504 adopts a motor, a pulley and a belt in the prior art. The belt is connected to the truss 5012, and the motor drives the pulley to drive the belt to rotate, thereby causing the truss 5012 connected to the belt to move along the linear guide rail group 5011;

[0036] The lifting assembly 502 includes a third driving member 5021 whose output end passes through the truss 5012 and a vacuum generator 5022 arranged on the truss 5012 and connected to the third driving member 5021 through a hose. The adsorption assembly 503 is arranged at the output end of the third driving member 5021. The adsorption assembly 503 includes a label suction lifting plate 5031 arranged on the third driving member 5021 and driven to rise and fall by the third driving member 5021. A plurality of second mounting positions 5032 are evenly arranged on the label suction lifting plate 5031. A nozzle mounting plate 5033 is installed on at least one of the second mounting positions 5032. A plurality of suction cups 5034 are arranged on the nozzle mounting plate 5033. The adsorption assembly 503 also includes a vacuum generator 5022 arranged on the truss 501 2 is connected to the suction cup 5034 through a hose, and the air generator is connected to the diverter plate 5035 through a hose, and a negative pressure gauge is provided on the diverter plate 5035. Slide rods 5036 slidably connected to the truss 5012 through linear bearings are provided on both sides of the suction mark lifting plate 5031. Through the above arrangement, a plurality of second mounting positions 5032 are provided on the suction mark lifting plate 5031, so that the suction cup 5034 is arranged at different positions through the suction nozzle mounting plate 5033 to meet the suction of sheets of different sizes, and slide rods 5036 slidably connected to the truss 5012 are provided on both sides of the suction mark lifting plate 5031 to ensure the stability of the suction cup 5034 moving up and down to avoid the problem of shaking and failure to adsorb.

[0037] In this example, see Figure 6 The label suction component 40 includes an air suction plate 401, which is provided with a bottom plate 4011 and an adsorption plate 4012 installed on the bottom plate 4011, the bottom plate 4011 is sealed and connected to the adsorption plate 4012, the bottom plate 4011 is hollow and has a groove 4014, the adsorption plate 4012 is provided with a plurality of air suction ports 4013 connected with the groove 4014, and the bottom of the bottom plate 4011 is provided with an air pipe connecting port connected with the groove 4014; a second vacuum generator 5022 is provided in the chassis 10 below the air suction plate 401, the vacuum generator 5022 is connected to the solenoid valve in the chassis 10 through a hose, the solenoid valve is connected to the air pipe connecting port through a hose, and the air suction plate 401 generates an adsorption force through the vacuum generator 5022 to adsorb the sheet material peeled off the bottom film.

[0038] In summary, the working principle of the automatic sheet stripping machine in this embodiment is:

[0039] Place the stacked sheets on the material bin lifting plate 203 in the sheet storage bin 101, adjust the position of the adjusting baffle 204 so that the adjusting baffle 204 defines the front and rear positions of the sheets, and then rotate the hand wheel 205 to bring the two side clamps 201 closer to each other to adjust the distance between the two clamps 201 and define the left and right positions of the sheets, so as to facilitate the positioning of the sheets;

[0040] The driving assembly 504 drives the truss 5012, so that the suction cup 5034 on the truss 5012 moves to the top of the sheet storage bin 101, and the motor and the rack mechanism drive the bin lifting plate 203 to rise a certain distance, so that the position of the sheet is raised; at this time, the third driving member 5021 drives the suction nozzle to move downward, so that the suction nozzle sucks the sheet, and after sucking, the third driving member 5021 drives the sheet to rise;

[0041] Then, the driving assembly 504 drives the truss 5012 with the sheet material adsorbed thereon to move to the clamping and peeling mechanism 30, and the second driving member 3025 drives the pressing plate 3024 to drive the pressing block 3027 to rise. At the same time, the third driving member 5021 drives the suction cup 5034 to drive the sheet material downward, and the driving assembly 504 drives the truss 5012 to move forward a certain distance, so that the bottom film of the sheet material is located between the pressing plate 3023 and the pressing block 3027; at this time, the second driving member 3025 drives the pressing plate 3024 to descend, so that the pressing plate 3023 and the pressing block 3027 are clamped together to clamp the bottom film of the sheet material; after the bottom film is clamped, the third driving member 5 021 drives the suction cup 5034 to rise, so that the sheet is separated from the bottom film; at this time, the driving component 504 drives the truss 5012 to move toward the label suction component 40 again, so that the bottom film is completely separated from the sheet. After the truss 5012 drives the adsorbed sheet to move to just above the air suction plate 401, the third driving component 5021 drives the suction cup 5034 to drive the sheet downward, so that the air suction plate 401 adsorbs the sheet separated from the bottom film, and at the same time, the suction cup 5034 is cut off, so that the sheet of the suction cup 5034 is separated from the suction cup 5034. After the sheet is conveyed, the driving component 504 and the third driving component 5021 respectively drive the suction cup 5034 to reset, and continue to convey the next sheet;

[0042] In addition, the second driving member 3025 drives the pressing plate 3024 to rise, so that the pressing plate 3023 and the pressing block 3027 release the bottom film, and then after ventilation through the universal curved tube 3011, the bottom film is blown down into the waste film recovery bin 102.

[0043] The automatic sheet material stripping machine in this embodiment can realize automatic sheet material picking, stripping and feeding without manual assistance. The feeding action is fully automated and can be carried out stably, and the production efficiency is greatly improved. Moreover, the various mechanisms in the whole machine are integrated together, the structure is relatively compact, and the space occupied is small. It can be used for stripping sheets of various sizes and has strong compatibility.

[0044] In this embodiment, in order to facilitate the collection of bottom film and reduce the labor intensity of the staff, a turnover box 70 is placed in the waste film recovery bin 102, and a sliding port is provided on one side of the box body of the waste film recovery bin 102. The turnover box 70 is placed into the waste film recovery bin 102 through the sliding port, and a handle is provided on the turnover box 70. The bottom film can be conveniently collected through the turnover box 70 to avoid the bottom film from accumulating in the waste film recovery bin 102 for easy cleaning.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An automatic sheet stripping machine, characterized in that: include: The chassis has a sheet storage bin, a waste film recovery bin and a label suction area arranged in sequence along the length direction; The sheet positioning mechanism is arranged in the sheet storage bin, and is used to position and gradually lift the sheet, and comprises a set of clamping plates and an adjusting component for adjusting the clamping plates to be close to each other; A clamping and peeling mechanism is provided in the waste film recovery bin, and the clamping mechanism is used to clamp the bottom film, peel off the bottom film, and blow the peeled bottom film into the waste film recovery bin, and it has a waste film blowing component and a clamping component; The label suction component is arranged in the label suction area, and is used for sucking the sheet material, and has a suction plate; The sheet material conveying mechanism is slidably mounted on the chassis, and the sheet material conveying mechanism reciprocates along the sheet material storage bin, the waste film recovery bin, and the label suction area to grab and convey the sheet material, and includes a lifting component, an adsorption component, and a driving component; The adsorption component on the sheet conveying mechanism sucks the sheet in the sheet positioning mechanism, and the sheet conveying mechanism moves the sheet to the clamping and peeling mechanism. The clamping component clamps the bottom film of the sheet. At the same time, the sheet conveying mechanism pulls the edge material to move toward the label suction component, so that the bottom film peels off the sheet and the sheet is adsorbed by the suction plate.

2. The automatic sheet stripping machine according to claim 1, characterized in that: The sheet positioning mechanism also has a silo lifting plate slidably arranged in the sheet storage bin, and a motor and a rack mechanism fixed inside the sheet storage bin for driving the silo lifting plate to rise and fall. The clamp passes through the silo lifting plate, and the silo lifting plate is provided with a movable groove for the clamps to be brought close to each other. The silo lifting plate between a group of clamps is provided with an installation groove, and the installation groove is provided with an adjustment baffle that can adjust the front and rear position.

3. The automatic sheet stripping machine according to claim 2, characterized in that: The adjusting component is arranged under the silo lifting plate, and the adjusting component includes a two-way screw rod rotatably arranged on the box body and a guide slide rod arranged on both sides of the two-way screw rod and parallel to the two-way screw rod. A group of splints are respectively arranged at both ends of the two-way screw rod and are threadedly connected to the two-way screw rod. The splints are connected to the guide slide rod through linear bearings. A handwheel for rotating the two-way screw rod is provided at one end of the two-way screw rod. The handwheel rotates the two-way screw rod to make the splints on both sides move closer to or away from each other.

4. The automatic sheet stripping machine according to claim 1, characterized in that: The clamping assembly includes a bottom paper stripping base plate slidably arranged on one side of the waste film recovery bin and a first driving member arranged on one side of the waste film recovery bin for driving the bottom paper stripping base plate to rise and fall; a pressure plate is arranged at the upper end of the bottom paper stripping base plate and toward the waste film recovery bin; a pressure plate and a second driving member driving the pressure plate to rise and fall are slidably arranged on the side of the bottom paper stripping base plate; a plurality of first mounting positions are evenly arranged on the top of the pressure plate; a pressure block facing one side of the pressure plate and cooperating with the pressure plate to press the bottom film is installed on at least one of the first mounting positions; anti-slip inclined grooves are arranged on the surface of the pressure plate and the bottom surface of the pressure block; the second driving member drives the pressure plate to descend so that the pressure plate and the pressure block are clamped together.

5. The automatic sheet stripping machine according to claim 1, characterized in that: The waste film blowing component comprises an air pipe seat and a universal curved pipe connected to the bottom of the air pipe for ventilation, the air outlet end of the universal curved pipe faces the pressing plate, and the air pipe seat is provided with an air pipe connector.

6. The automatic sheet stripping machine according to claim 1, characterized in that: The sheet material conveying mechanism also has a truss assembly, the driving assembly is connected to the truss assembly, and the lifting assembly and the adsorption assembly are arranged on the truss assembly. The truss assembly includes a linear guide rail group fixed on both sides of the box body and a truss slidably arranged on the linear guide rail group.

7. The automatic sheet stripping machine according to claim 6, characterized in that: The adsorption component includes a label suction lifting plate which is arranged on the lifting component and driven to rise and fall by the lifting component. A plurality of second mounting positions are evenly arranged on the label suction lifting plate. A suction nozzle mounting plate is installed on at least one of the second mounting positions. A plurality of suction cups are arranged on the suction nozzle mounting plate. The adsorption component also includes a diverter plate which is arranged on the truss and connected to the suction cup through a hose. A negative pressure gauge is arranged on the diverter plate. Sliding rods which are slidably connected to the truss through linear bearings are arranged on both sides of the label suction lifting plate.

8. The automatic sheet stripping machine according to claim 7, characterized in that: The lifting assembly comprises a third driving member whose output end passes through the truss and a vacuum generator arranged on the truss and connected to the third driving member through a hose, and the vacuum generator is connected to the diverter plate through the hose.

9. The automatic sheet stripping machine according to claim 1, characterized in that: A turnover box is placed in the waste film recovery bin, and a sliding opening is provided on one side of the box body of the waste film recovery bin. The turnover box is placed into the waste film recovery bin through the sliding opening, and a handle is provided on the turnover box.

10. The automatic sheet stripping machine according to claim 1, characterized in that: It also includes a controller for controlling the coordinated operation of the sheet positioning mechanism, the clamping and peeling mechanism, the label suction component and the sheet conveying mechanism. A box for placing the controller is arranged on one side of the chassis.

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