Multi-layer raw material automatic feeding structure

Abstract

The utility model discloses an automatic feeding structure of a multi-layer raw material, which comprises an automatic cutting and receiving module and an automatic stripping and laminating module, wherein the automatic cutting and receiving module is used for laminating adhesive tapes on two sides of material heads of new and old multi-layer raw materials into a whole; the automatic stripping and laminating module is used for exposing a middle-layer film material of the multi-layer raw material after being laminated and bonding a joint of the middle-layer film material; the number of layers of the multi-layer raw materials is more than or equal to 3; the automatic stripping and laminating module comprises an outer frame, a conveying channel allowing the multiple layers of raw materials to pass through is formed in the outer frame, a stripping assembly and at least one air suction type rubber roller are installed in the outer frame, the stripping assembly acts on an outer layer film on at least one side of the multiple layers of raw materials in the conveying channel to strip the outer layer film, and the air suction type rubber roller is located below a stripping knife. And adhering an adhesive tape to the joint of the middle-layer membrane material exposed after the multiple layers of raw materials are subjected to stripping treatment. Automatic material receiving and changing operation of new and old multi-layer raw materials is achieved, and it is guaranteed that joints of all layers of film materials in the multi-layer raw materials are firmly connected and cannot be broken.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting equipment, in particular to a raw material feeding structure with more than multiple layers. Background Art

[0002] Circular die cutting machine, also known as rotary machine, is commonly known as circular knife machine, rolling cutter machine or multi-station rotary die cutting machine. It is mainly used for die cutting (full cutting, half cutting), creasing and hot stamping, laminating, automatic waste discharge and other operations of some corresponding non-metallic materials, self-adhesive, EVA, double-sided adhesive, electronics, mobile phone pads, etc. The die-cut products are widely used in mobile phones, computers, LCD monitors, digital cameras, LCD backlights and other fields.

[0003] At present, the unwinding device with material connection and replacement function in the die-cutting machine realizes the unwinding of single-layer raw materials or double-layer raw materials and can perform automatic material connection and replacement operations. However, this structure is not suitable for raw materials with more than three layers. This is because, during the automatic material connection and replacement operation, the tape is attached to both sides of the joint of the new and old raw materials, so that the new and old raw materials are automatically joined to form a whole. However, for raw materials with more than three layers, the existing automatic material connection and replacement equipment cannot realize the attachment of tape to the joint of the middle layer of film material, and the bonding force between the middle layer of film material and the outer layer of film material on both sides is weak. When the material is transferred under the subsequent traction force, the joint of the middle layer of film material is prone to breakage. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned background technology, the utility model provides an automatic feeding structure for multi-layer raw materials, which not only realizes the automatic connection and replacement operation of new and old multi-layer raw materials, but also ensures that the joints of each layer of membrane material in the multi-layer raw material are firmly connected and will not be disconnected.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a multi-layer raw material automatic feeding structure, including an automatic cutting and splicing module for splicing the two sides of the material heads of new and old multi-layer raw materials into one body with adhesive tapes, and an automatic peeling and splicing module for exposing the middle layer film material of the multi-layer raw materials after splicing and bonding the joints thereof, wherein the number of layers of the multi-layer raw materials is ≥ 3 layers, preferably three or four layers;

[0007] The automatic peeling and laminating module includes an outer frame, on which a conveying channel for multi-layer raw materials to be conveyed is opened, and a peeling component and at least one suction rubber roller are installed inside the outer frame. The peeling component acts on the outer layer film on at least one side of the multi-layer raw materials in the conveying channel to peel it off, and the suction rubber roller is located below the peeling knife to bond the tape to the joint of the middle layer film material exposed after the multi-layer raw materials are peeled off.

[0008] Furthermore, the air suction type rubber roller is a cam type structure, the protruding portion of which is evenly provided with air suction holes, and the protruding portion is covered with an elastic layer.

[0009] In order to ensure that the suction rubber roller can smoothly stick the tape to the joint of the middle layer membrane material exposed after the multi-layer raw material is processed by peeling off the outer layer film, and at the same time avoid the outer surface of the rotating suction rubber roller from contacting the surface of the middle layer membrane material to cause contamination, the suction rubber roller is set to a cam structure, and the tape is adsorbed on the surface of this part through the suction holes of the protruding part. When in use, the suction rubber roller is controlled to rotate until the outside of the protruding part contacts the outer side of the middle layer membrane material exposed after peeling off the outer layer film, and the tape adheres to the joint of the exposed middle layer membrane material. Then the suction rubber roller rotates until the protruding part is offset and not in contact with the side of the multi-layer raw material. At this time, the surface of the suction rubber roller does not contact the middle layer membrane material, and will not cause contamination to the surface of the middle layer membrane material.

[0010] Furthermore, two suction type rubber rollers are provided, and the two suction type rubber rollers are installed side by side in the outer frame and are located on opposite sides of the multi-layer raw materials in the conveying channel. One end of the two suction type rubber rollers is provided with gears that cooperate with each other, and the end of one of the suction type rubber rollers is driven and connected to a driving component.

[0011] Taking into account the internal installation space of the automatic stripping and laminating module and the efficiency of tape laminating, two suction rubber rollers installed side by side are arranged inside the outer frame. When in use, the two suction rubber rollers are controlled to rotate toward each other to the outside of the two protruding parts to dock with each other, and respectively contact the two sides of the joint of the exposed middle layer membrane material after the outer film is peeled off, and the tape adsorbed on the protruding part is adhered to the joint of the exposed middle layer membrane material. Then the two suction rubber rollers are rotated until the two protruding parts are staggered. At this time, the surface of the suction rubber roller does not contact the middle layer membrane material, and will not cause pollution to the surface of the middle layer membrane material. When the number of layers of the multi-layer raw material is 3, the surface of one of the suction rubber rollers does not adsorb the tape.

[0012] Specifically, the drive assembly adopts a structure in which a servo motor, a reducer and a coupling are matched. Through the above-mentioned force transmission structure design, only one set of drive assemblies can simultaneously drive the two suction rubber rollers to rotate in opposite directions, reducing the power part of one set of drive assemblies, saving costs, and making the equipment structure more compact.

[0013] Furthermore, the stripping assembly comprises a stripping knife, which is arranged obliquely downward toward the direction of the conveying channel, and the length direction of the stripping knife is consistent with the axial direction of the suction rubber roller.

[0014] The peeling knife is used in conjunction with an external traction component such as a traction roller to direct the outer film out from the end of the peeling knife, thereby achieving the purpose of peeling the outer film of the multi-layer raw material. The external traction component provides traction for the peeling process of the outer film.

[0015] By tilting the stripping knife downward toward the conveying channel, the outward stripping force of the stripping knife on the outer film is moderate, and it is not easy for the end joint of the middle layer of film to be partially or completely separated due to excessive outward stripping force on the outer film.

[0016] Furthermore, the stripping knife is installed inside the outer frame through an angle adjustment component, and the angle adjustment component drives the stripping knife to rotate to adjust the contact angle formed between the bottom end of the stripping knife and the outer side of the multi-layer raw material in the conveying channel.

[0017] In order to facilitate the adjustment of the peeling angle of the peeling knife and provide appropriate peeling force for multi-layer raw materials of different textures, an additional angle adjustment component is provided, which drives the peeling knife to rotate so as to adjust the angle formed by the active end of the peeling knife and the outer side of the multi-layer raw material, thereby achieving the purpose of adjusting the outward peeling force of the peeling knife.

[0018] Furthermore, the angle adjustment assembly includes a rotating adjustment shaft and a manual adjustment piece, the stripping knife is installed on the rotating adjustment shaft, the rotating adjustment shaft is rotatably installed inside the outer frame, a manual adjustment piece is provided on the outside of the outer frame, and the manual adjustment piece is connected to one end of the rotating adjustment shaft.

[0019] When in use, the staff manually turns the manual adjustment member, which drives the rotation adjustment shaft to rotate, and the stripping knife rotates and is positioned to a specific position. The manual adjustment member can adopt a structural component with rotation adjustment and positioning functions in the prior art.

[0020] Furthermore, two raw material guide shafts are installed on the outer frame. The two raw material guide shafts are respectively located at the inlet and outlet of the conveying channel. The raw material guide shafts are arranged perpendicular to the conveying direction of the multi-layer raw materials.

[0021] The multi-layer raw materials after the automatic material exchange process are directed into the conveying channel through two raw material guide shafts to facilitate their stripping and tape application.

[0022] Furthermore, at least one auxiliary guide shaft is installed on the outer frame, and the auxiliary guide shaft cooperates with the stripping assembly to strip the outer film on one side of the multi-layer raw material and guide it outward.

[0023] In actual application, if the outer film is a protective film, the peeled outer film is directly guided out by the auxiliary guide shaft, and there is no need to bond it with the middle film material later. If the outer film is a functional film, the peeled outer film is guided out by the auxiliary guide shaft to facilitate the peeling knife to continue the peeling operation. Then, when entering the subsequent die-cutting process, the outer film is bonded to the outside of the middle film material through the roller to form a whole.

[0024] Furthermore, the outer frame is mounted on a fixed panel at its side, and a buffer roller is mounted on the fixed panel for use in conjunction with the auxiliary guide shaft to orient and guide the peeled protective film.

[0025] The peeled outer film is guided out in a certain direction through the cooperation of the auxiliary guide shaft and the buffer roller shaft.

[0026] Furthermore, the automatic cutting and splicing module is fixedly mounted on a frame, and the automatic peeling and laminating module is slidably positioned and mounted on the frame.

[0027] Through the above-mentioned structural setting, it can be selected whether to use the automatic peeling and laminating module in conjunction with the automatic cutting and splicing module according to the characteristics of the raw materials, and the application scope of the equipment is wider.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model cooperates with the automatic cutting and splicing module in that the new and old multi-layer raw materials are cut in advance by the automatic cutting and splicing module, and the laminating tapes on both sides of the joints are joined, and then the outer film on at least one side of the multi-layer raw material in the conveying channel is peeled off and removed by the peeling knife in the automatic peeling and splicing module, and then the tape is bonded to the joint of the middle layer film material exposed after the multi-layer raw material is peeled off by the suction rubber roller below, so that the joint of the middle layer film material is firmly bonded and will not be disconnected during subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Figure 1 It is a structural schematic diagram of the automatic cutting and splicing module in the utility model;

[0032] Figure 2 This is a schematic diagram of the overall structure of the automatic peeling and laminating module in the utility model;

[0033] Figure 3 This is a front view of the automatic peeling and laminating module in the utility model;

[0034] Figure 4 It is a partial structural schematic diagram of the automatic peeling and laminating module in the utility model;

[0035] Figure 5 It is a partial structural schematic diagram of the cutting knife roller and the air suction type rubber roller in the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the air suction type rubber roller in the utility model;

[0037] Figure 7 It is a cross-sectional view of the air suction type rubber roller in the utility model;

[0038] Among them, the specific drawings are marked as:

[0039] Automatic cutting and splicing module 1, splicing unit 2, outer frame 3, first pressure roller 4, cutting knife roller 5, suction pressure roller 6, second pressure roller 7, automatic peeling and laminating module 8, outer frame 9, conveying channel 10, peeling knife 11, angle adjustment component 12, rotating adjustment shaft 13, manual adjustment part 14, suction rubber roller 15, suction hole 16, elastic layer 17, gear 18, driving component 19, raw material guide shaft 20, auxiliary guide shaft 21, fixed panel 22, buffer roller 23. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] like Figures 1 to 3 As shown, a multi-layer raw material automatic feeding structure includes an automatic cutting and splicing module 1 for splicing the two sides of the material heads of new and old multi-layer raw materials with adhesive tapes into one body and an automatic peeling and splicing module 8 for exposing the middle layer film material of the multi-layer raw materials after splicing and bonding the joints thereof. The number of layers of the multi-layer raw materials is ≥ 3 layers, preferably three or four layers;

[0042] The automatic peeling and laminating module 8 includes an outer frame 9, on which a conveying channel 10 is opened for conveying multi-layer raw materials. A peeling component and at least one suction rubber roller 15 are installed inside the outer frame 9. The peeling component acts on the outer layer film on at least one side of the multi-layer raw materials in the conveying channel 10 to peel it off. The suction rubber roller 15 is located below the peeling component and bonds the tape to the joint of the middle layer film material exposed after the multi-layer raw materials are peeled off.

[0043] The automatic cutting and splicing module 1 can adopt a structural component with an automatic material splicing and changing function in the prior art. Specifically, a structure in which two splicing units 2 cooperate can be adopted. The two splicing units 2 can move toward or away from each other under the drive of a linear drive member. The splicing unit 2 includes an outer frame 3. A first pressure roller 4, a cutting roller 5, a suction pressure roller 6 and a second pressure roller 7 are sequentially installed inside the outer frame 3 from top to bottom. During specific operation, the joint of the new material roll naturally hangs down between the two splicing units 2. When the old material roll is unwound to the point where the old material belt is about to run out and needs to be replaced, the two splicing units 2 are controlled to move toward each other and approach each other. The new material roll begins to continuously unwind and convey the new material roll outward, and the released new and old material belts are synchronously conveyed downward. Through the rotation cooperation of the two first pressure rollers 4, the new and old material belts are tightly and flattened, ensuring that the cutting roller 5 can cut the new and old material belts. The flatness of the cutting edge. When the end of the new material belt is conveyed to the position below the cutting roller 5, as the two cutting rollers 5 rotate and cooperate, the new and old material belts are cut off by the blades on the cutting roller 5 at the same time, and the old material roll stops unwinding and conveying. The cutting port of the new material belt located at the top is aligned with the cutting port of the old material belt located at the bottom (that is, the joint of the new and old material belts), and when it is conveyed downward to the suction type pressing roller 6, the film on the suction type pressing roller 6 is adhered to the opposite sides of the joint of the new and old material belts, and the film is adhered and pressed tightly at the joint of the new and old material belts through the rotation and cooperation of the two second pressing rollers 7. The new and old material belts are joined to form a whole, and then the two splicing units 2 are controlled to move back to back and away from each other, the new material roll is fed normally, the old material roll that has stopped feeding is taken down and replaced with a new material roll, and the above operation steps are repeated to realize the automatic splicing function without stopping the machine.

[0044] The automatic stripping and laminating module 8 is used in conjunction with the automatic cutting and splicing module 1. The automatic cutting and splicing module 1 performs automatic splicing and replacement operations on the new and old multi-layer raw materials in advance, and then the stripping component in the automatic stripping and laminating module 8 strips off and removes the outer layer film on the multi-layer raw material in the conveying channel 10, and then the suction rubber roller 15 below adheres the tape to the joints of the middle layer film material exposed after the stripping treatment of the multi-layer raw material, so that the joints of the middle layer film material are firmly bonded, and will not be broken during subsequent processing.

[0045] Among them, Figure 6 and Figure 7As shown, the suction rubber roller 15 is a cam structure, and the protruding part thereof is evenly provided with suction holes 16, and the protruding part is coated with an elastic layer 17. In order to ensure that the suction rubber roller 15 can smoothly stick the adhesive tape to the joint of the middle layer film material exposed after the multi-layer raw material is processed by peeling off the outer film, and at the same time avoid the outer surface of the rotating suction rubber roller 15 from contacting with the surface of the middle layer film material to cause pollution, the suction rubber roller 15 is set as a cam structure, and the adhesive tape is adsorbed on the surface of the part through the suction holes 16 of the protruding part. When in use, the suction rubber roller 15 is controlled to rotate until the outer side of the protruding part contacts with the outer side of the middle layer film material exposed after the outer film is peeled off, and the adhesive tape adheres to the joint of the exposed middle layer film material. Then, the suction rubber roller 15 rotates until the protruding part is staggered and does not contact with the side of the multi-layer raw material. At this time, the surface of the suction rubber roller 15 does not contact with the middle layer film material, and will not cause pollution to the surface of the middle layer film material.

[0046] In a specific embodiment, two suction rubber rollers 15 are provided, and the two suction rubber rollers 15 are installed side by side in the outer frame 9 and are located on opposite sides of the multi-layer raw materials in the conveying channel 10. One end of the two suction rubber rollers 15 is provided with gears 18 that cooperate with each other, and the end of one of the suction rubber rollers 15 is driven and connected to a driving component 19.

[0047] Taking into account the internal installation space of the automatic stripping and laminating module 8 and the efficiency of laminating the tape, two suction rubber rollers 15 installed side by side are arranged inside the outer frame 9. When in use, the two suction rubber rollers 15 are controlled to rotate toward each other to the outside of the two protruding parts to dock with each other, and respectively contact the two sides of the exposed middle layer film material after the outer film is stripped, and the tape adsorbed on the protruding part is adhered to the joint of the exposed middle layer film material. Then the two suction rubber rollers 15 are rotated until the two protruding parts are staggered. At this time, the surface of the suction rubber roller 15 does not contact the middle layer film material, and will not cause pollution to the surface of the middle layer film material. When the number of layers of the multi-layer raw material is 3, the surface of one of the suction rubber rollers 15 does not adsorb the tape.

[0048] Specifically, the drive assembly 19 adopts a structure in which a servo motor, a reducer and a coupling are matched. Through the above-mentioned force transmission structure design, only one set of drive assemblies 19 can simultaneously drive the two suction rubber rollers 15 to rotate in opposite directions, thereby reducing the power part of one set of drive assemblies 19, saving costs and making the equipment structure more compact.

[0049] In a specific embodiment, the stripping assembly is a stripping knife 11, the stripping knife 11 is arranged obliquely downward toward the conveying channel 10, and the length direction of the stripping knife 11 is consistent with the axial direction of the suction rubber roller 15.

[0050] By using the stripping knife 11 and cooperating with an external traction component such as a traction roller, the outer film is directed out from the end of the stripping knife 11, so as to achieve the purpose of stripping the outer film of the multi-layer raw material. The external traction component provides traction for the stripping process of the outer film. By setting the stripping knife 11 downwardly and tilted toward the conveying channel 10, the outward stripping force of the stripping knife 11 on the outer film is moderate, and it is not easy to cause the end joint of the intermediate film material to be partially or completely separated due to excessive outward stripping force on the outer film.

[0051] Specifically, considering the installation space inside the outer frame 9, two installation sites for stripping knives 11 are set inside the outer frame 9, which are respectively located on opposite sides of the conveying channel 10. If it is a three-layer raw material, only one stripping knife 11 needs to be installed to strip the outer film on one side of the three-layer raw material. If it is a four-layer raw material, since the middle layer film material has two layers, it is necessary to install two stripping knives 11 to strip the outer films on both sides of the four-layer raw material to expose the two layers of middle film materials, and then use two suction rubber rollers 15 to bond tapes on both sides of the joint of the two layers of middle film materials. For raw materials with more than four layers, two automatic stripping and bonding modules 8 are used in combination. However, three or more installation sites for stripping knives 11 can also be set inside the outer frame 9.

[0052] In order to facilitate the adjustment of the peeling angle of the peeling knife 11, a suitable peeling force can be provided for multi-layer raw materials of different textures, such as Figure 4 and Figure 5 As shown, the stripping knife 11 is installed inside the outer frame 9 through an angle adjustment component 12, and the angle adjustment component 12 drives the stripping knife 11 to rotate to adjust the contact angle formed between the bottom end of the stripping knife 11 and the outer side of the multi-layer raw material in the conveying channel 10. An additional angle adjustment component 12 is provided, which drives the stripping knife 11 to rotate so as to adjust the angle formed between the active end of the stripping knife 11 and the outer side of the multi-layer raw material, so as to achieve the purpose of adjusting the outward stripping force of the stripping knife 11.

[0053] In a specific embodiment, the angle adjustment assembly 12 includes a rotation adjustment shaft 13 and a manual adjustment member 14. The stripping knife 11 is mounted on the rotation adjustment shaft 13. The rotation adjustment shaft 13 is rotatably mounted inside the outer frame 9. The outer side of the outer frame 9 is provided with a manual adjustment member 14, which is connected to one end of the rotation adjustment shaft 13. When in use, the staff manually turns the manual adjustment member 14, which drives the rotation adjustment shaft 13 to rotate, and the stripping knife 11 rotates and is positioned to a specific position. The manual adjustment member 14 can adopt a structural component with rotation adjustment and positioning functions in the prior art.

[0054] Among them, Figure 2 , Figure 3 and Figure 4As shown, two raw material guide shafts 20 are also installed on the outer frame 9. The two raw material guide shafts 20 are respectively located at the inlet and outlet of the conveying channel 10. The raw material guide shafts 20 are arranged perpendicular to the conveying direction of the multi-layer raw material. Through the two raw material guide shafts 20, the multi-layer raw material after the automatic material connection and replacement process is directed into the conveying channel 10, so as to facilitate the peeling and tape application process.

[0055] In a specific embodiment, at least one auxiliary guide shaft 21 is also installed on the outer frame 9. The auxiliary guide shaft 21 is used in conjunction with the stripping assembly to strip the outer film on one side of the multi-layer raw material and guide it outward. In actual application, if the outer film is a protective film, the stripped outer film is directly guided out and rolled up by the auxiliary guide shaft 21, and it does not need to be laminated with the intermediate film material later; if the outer film is a functional film, the stripped outer film is guided out by the auxiliary guide shaft 21 in a directional manner, so that the stripping knife 11 can continue the stripping operation, and then when entering the subsequent die-cutting process, the outer film is laminated to the outside of the intermediate film material through the roller to form a whole.

[0056] The outer frame 9 is mounted on a fixed panel 22, and a buffer roller 23 is mounted on the fixed panel 22 for use with the auxiliary guide shaft 21 to orient the peeled protective film. The auxiliary guide shaft 21 cooperates with the buffer roller 23 to orient the peeled outer film in a certain direction.

[0057] Among them, the automatic cutting and splicing module 1 is fixedly installed on the frame, and the automatic stripping and laminating module 8 is slidably positioned and installed on the frame. Through the above structural setting, it is possible to choose whether to use the automatic stripping and laminating module 8 in conjunction with the automatic cutting and splicing module 1 according to the number of raw material layers, and the application range of the equipment is wider.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer raw material automatic feeding structure, characterized in that: It includes an automatic cutting and splicing module for splicing the two sides of the new and old multi-layer raw materials with adhesive tapes to form a whole, and an automatic peeling and splicing module for exposing the middle layer of the multi-layer raw materials after splicing and bonding the joints, wherein the number of layers of the multi-layer raw materials is ≥ 3; The automatic peeling and laminating module includes an outer frame, on which a conveying channel for multi-layer raw materials to be conveyed is opened, and a peeling component and at least one suction rubber roller are installed inside the outer frame. The peeling component acts on the outer layer film on at least one side of the multi-layer raw materials in the conveying channel to peel it off, and the suction rubber roller is located below the peeling component to bond the tape to the joint of the middle layer film material exposed after the multi-layer raw materials are peeled off.

2. The multi-layer raw material automatic feeding structure according to claim 1 is characterized in that: The air suction type rubber roller is a cam type structure, the protruding part of which is evenly provided with air suction holes, and the protruding part is covered with an elastic layer.

3. The multi-layer raw material automatic feeding structure according to claim 2 is characterized in that: There are two suction rubber rollers, which are installed side by side in the outer frame and located on opposite sides of the multi-layer raw materials in the conveying channel. One end of the two suction rubber rollers is provided with gears that match each other, and the end of one of the suction rubber rollers is driven and connected to a driving component.

4. The multi-layer raw material automatic feeding structure according to claim 1 is characterized in that: The stripping assembly comprises a stripping knife, which is arranged obliquely downward toward the direction of the conveying channel, and the length direction of the stripping knife is consistent with the axial direction of the suction type rubber roller.

5. The multi-layer raw material automatic feeding structure according to claim 4 is characterized in that: The stripping knife is installed inside the outer frame through an angle adjustment component, and the angle adjustment component drives the stripping knife to rotate to adjust the contact angle formed between the bottom end of the stripping knife and the outer side of the multi-layer raw material in the conveying channel.

6. The multi-layer raw material automatic feeding structure according to claim 5, characterized in that: The angle adjustment assembly includes a rotating adjustment shaft and a manual adjustment piece. The stripping knife is installed on the rotating adjustment shaft. The rotating adjustment shaft is rotatably installed inside the outer frame. A manual adjustment piece is provided on the outside of the outer frame. The manual adjustment piece is connected to one end of the rotating adjustment shaft.

7. The multi-layer raw material automatic feeding structure according to claim 1 is characterized in that: Two raw material guide shafts are also installed on the outer frame. The two raw material guide shafts are respectively located at the inlet and outlet of the conveying channel. The raw material guide shafts are arranged perpendicular to the conveying direction of the multi-layer raw materials.

8. The multi-layer raw material automatic feeding structure according to claim 1, characterized in that: At least one auxiliary guide shaft is also installed on the outer frame, and the auxiliary guide shaft cooperates with the stripping assembly to strip the outer film on one side of the multi-layer raw material and guide it outward.

9. The multi-layer raw material automatic feeding structure according to claim 8, characterized in that: The side surface of the outer frame is mounted on a fixed panel, and a buffer roller shaft is mounted on the fixed panel for use in conjunction with the auxiliary guide shaft to orient and guide the peeled outer layer film.

10. The multi-layer raw material automatic feeding structure according to claim 9, characterized in that: The automatic cutting and splicing module is fixedly mounted on the frame, and the automatic stripping and laminating module is slidably positioned and mounted on the frame.

Images