A method and a die cutting machine for cutting a seamless butt joint

Abstract

The present application relates to the technical field of die-cutting machine, especially to a seamless butt joint die-cutting method and die-cutting machine, the die-cutting method comprising: combining sheet foam and weak adhesive film to form a first composite tape, and forming a MARK point at the rear end of waste material; scanning the MARK point and removing the waste material, and rearranging the sheet material to form a second composite tape, the second composite tape being a sheet material structure continuously and uniformly distributed on the weak adhesive film; bonding the first adhesive tape and the second adhesive tape to the top surface and the bottom surface of the second composite tape, and combining with the weak adhesive film to form a third composite tape; die-cutting the edge of the third composite tape, and discharging the edge waste material and the self-adhesive paper; bonding a rubber strip at a specified position of the first adhesive tape, and combining with a dummy film to form a fourth composite tape; die-cutting the sheet material on the fourth composite tape, and discharging the waste material to form a fifth composite tape; and continuously and stably cutting in the die-cutting and waste discharging mechanism, greatly improving the material utilization rate and the yield.

Description

Technical Field

[0001] This invention relates to the field of die-cutting machine technology, and in particular to a method and machine for seamless die-cutting of equal-sized sliced ​​materials. Background Technology

[0002] A die-cutting machine is a device used to cut sheet materials into specific shapes. It consists of multiple die-cutting mechanisms arranged at intervals along a straight line. Each die-cutting mechanism includes two parallel and opposite rollers, one of which is equipped with a roller cutter. When the sheet material passes between the two rollers, it is cut by the roller cutter on the roller body and fed into the next die-cutting mechanism during synchronous rotation, thereby realizing the continuous cutting of the sheet material.

[0003] In related technologies, due to the unstable material feeding at the feeding end, there is a difference between the length of the sheet material and the actual required length during cutting. The sheet material is not cut into equal pieces, and the gap between adjacent sheet materials is also significantly different, which affects the continuous cutting action of subsequent sheet materials, resulting in a large waste of materials and a low yield.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the present invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method and machine for seamless die-cutting of equal sliced ​​materials, which saves materials and improves the yield of products.

[0006] To achieve the above objectives, the technical solution adopted by this invention is: a seamless die-cutting method for equal-sized sliced ​​materials, comprising the following steps:

[0007] The sheet foam and the weak adhesive film are combined to form a first composite belt on the weak adhesive film with sheet material and waste material evenly distributed at intervals, and each waste material has a MARK point at the rear end of the first composite belt in the conveying direction.

[0008] Scan the MARK points and remove the waste material, and rearrange the sheet material to form a second composite band, which is a sheet material structure that is continuously and uniformly distributed on the weak adhesive film.

[0009] The first tape and the second tape are respectively attached to the top and bottom surfaces of the second composite tape, and a weak adhesive film is bonded to the side where the second tape is located to form a third composite tape;

[0010] The edges of the third composite tape are die-cut, and the edge waste of the second tape and the paper from the first tape are discharged.

[0011] A rubber strip is bonded to a predetermined position on the first tape, and a matte film is laminated onto the surface of the first tape to form a fourth composite tape.

[0012] Each piece of material on the fourth composite belt is die-cut to form a sheet shape, and the waste material is discharged to form a fifth composite belt of sheets evenly distributed on the weak adhesive film.

[0013] Furthermore, the scanning of MARK points and removal of waste materials, and the rearrangement of the sheet materials to form a second composite band, wherein the second composite band is a sheet material structure continuously and uniformly distributed on the weakly adhesive film includes:

[0014] After scanning the MARK point, the cutting action begins, forming the first knife mark;

[0015] After the first knife mark is detected, the current position is recorded. After the first composite belt travels to the set extension distance, the first composite belt is cut to form the second knife mark.

[0016] After scanning the MARK point, the waste material is removed according to the positions of the first and second cut marks.

[0017] The distance between two adjacent pieces after scanning and rejection is compared with the input product jump distance to generate the difference.

[0018] Based on the difference, action compensation is generated, and the weak adhesive film between two adjacent sheets is collected, so that the distance between the two adjacent sheets is shortened to within ±1mm, forming a second composite band on which the sheets are continuously and evenly distributed.

[0019] Furthermore, the width of the first tape is slightly smaller than the width of the second composite tape, and the width of the second composite tape is slightly smaller than the width of the second tape.

[0020] Furthermore, the waste material on the fourth composite tape is discharged, including the excess material cut off from both sides of the first and second bonding tapes, the excess material between two adjacent sheets, and the protective film on the surface.

[0021] Furthermore, the fifth composite tape is combined with a weak adhesive film and release paper, and then wound up to form a continuous sheet product.

[0022] This invention also provides a seamless die-cutting machine for equal-sized slices, which applies the seamless die-cutting method for equal-sized slices as described above, including:

[0023] A traction mechanism is used to composite sheet foam and weak adhesive film to form a first composite belt on which sheet material and waste material are evenly distributed at intervals, and the waste material forms a MARK point at the rear end of the first composite belt in the conveying direction.

[0024] The waste removal and arrangement mechanism is used to scan the MARK points and remove the waste materials, and rearrange the sheet materials to form a second composite belt. The second composite belt is a sheet material structure that is continuously and uniformly distributed on the weak adhesive film.

[0025] A tape laminating mechanism is used to attach a first tape and a second tape to the top and bottom surfaces of a second composite tape, respectively, and to laminate with a weak adhesive film on the side where the second tape is located to form a third composite tape.

[0026] An edge rejection mechanism is used to die-cut the edges of the third composite tape and discharge the edge waste of the second tape and the paper attached to the first tape.

[0027] A matte film lamination mechanism is used to bond a rubber strip to a predetermined position on a first tape and laminate a matte film onto the surface of the first tape to form a fourth composite tape.

[0028] The die-cutting and waste removal mechanism is used to die-cut each piece of material on the fourth composite belt into sheet shape and remove waste material to form a fifth composite belt of sheets evenly distributed on the weak adhesive film.

[0029] Furthermore, the waste rejection arrangement mechanism includes a first scanning component, a first cutting component, a second scanning component, a second cutting component, a third scanning component, a waste rejection component, a fourth scanning component, and a runout compensation component arranged sequentially along the first composite belt conveying direction;

[0030] After the first scanning component scans the MARK point, the first cutting component begins the cutting action to form the first blade mark;

[0031] After the second scanning component scans the first knife mark, it begins to record the current position. After the first composite belt travels to a set extension distance, the second cutting component cuts the first composite belt to form the second knife mark.

[0032] After the third scanning component scans the MARK point, the waste removal component removes the waste material according to the positions of the first and second cutting marks.

[0033] The fourth scanning component scans the distance between two adjacent pieces after rejection and compares it with the input product jump distance to generate a difference.

[0034] The vibration compensation component generates motion compensation based on the difference, collects the weak adhesive film between two adjacent sheets, and shortens the distance between the two adjacent sheets to within ±1mm, forming a second composite band on the weak adhesive film where the sheets are continuously and evenly distributed.

[0035] Furthermore, the first scanning component, the second scanning component, the third scanning component, and the fourth scanning component have the same structure, each including: a fixed rod, a rotating rod, a moving rod, a movable block, and a scanning head;

[0036] One end of the rotating rod is rotatably connected to the fixed rod, and the other end is perpendicularly connected to the end of the moving rod. The moving rod and the fixed rod are arranged parallel to each other. One end of the movable block is fixedly connected to the scanning head, and the other end is sleeved on the moving rod. The scanning head is arranged facing the top surface of the first composite belt.

[0037] Furthermore, the width of the first tape is slightly smaller than the width of the second composite tape, and the width of the second composite tape is slightly smaller than the width of the second tape.

[0038] Furthermore, it also includes a winding mechanism for bonding the fifth composite tape with a weak adhesive film and release paper, and winding it into a continuous sheet product.

[0039] The beneficial effects of this invention are as follows: By removing waste material at the feeding end before continuous cutting of the sheet material and rearranging the sheet material, the sheet material is arranged in a continuous and uniform distribution. This allows for continuous and stable cutting action when the sheet material enters the die-cutting waste removal mechanism, greatly improving material utilization and the yield of die-cut products, saving production costs, and increasing production efficiency. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the process for seamless die-cutting of equal-sized sliced ​​materials in an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the process for forming the second composite belt in an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the structure of the first composite strip in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram showing the position of the first knife mark in an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram showing the position of the second knife mark in an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram showing the relative positions of the first and second knife marks on the first composite tape in an embodiment of the present invention.

[0047] Figure 7 This is a schematic diagram of the structure during waste removal in an embodiment of the present invention;

[0048] Figure 8 This is a schematic diagram of the structure of the second composite strip in an embodiment of the present invention;

[0049] Figure 9 This is a schematic diagram of the structure of the seamless die-cutting machine for equal-sized slices in an embodiment of the present invention;

[0050] Figure 10 This is a front view of the seamless die-cutting machine for equal-sized sliced ​​materials in an embodiment of the present invention;

[0051] Figure 11 This is a schematic diagram of the scanning component in an embodiment of the present invention;

[0052] Figures 12 to 13 A schematic diagram illustrating the process of discarding defective components;

[0053] Figures 14 to 15 This is a schematic diagram illustrating the working process of the vibration compensation component.

[0054] Reference numerals: 1. Sheet material; 2. Waste material; 3. First composite tape; 01. MARK point; 02. First cut mark; 03. Second cut mark; 10. Traction mechanism; 20. Waste removal and arrangement mechanism; 21. First scanning assembly; 22. First cutting assembly; 23. Second scanning assembly; 24. Second cutting assembly; 25. Third scanning assembly; 26. Waste removal assembly; 27. Fourth scanning assembly; 28. Jump compensation assembly; 20a. Fixed rod; 20b. Rotating rod; 20c. Moving rod; 20d. Movable block; 20e. Scanning head; 30. Tape composite mechanism; 40. Edge waste removal mechanism; 50. Matte film composite mechanism; 60. Die-cut waste removal mechanism; 70. Rewinding mechanism. Detailed Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0056] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] like Figures 1 to 8 The seamless die-cutting method for equal-sized slices, as shown, includes the following steps:

[0059] The sheet foam and the weak adhesive film are combined to form a first composite belt 3 on which sheet material 1 and waste material 2 are evenly distributed at intervals, and each waste material 2 has a MARK point 01 at the rear end of the first composite belt 3 in the conveying direction.

[0060] Scan MARK point 01 and remove waste material 2, and rearrange sheet material 1 to form a second composite band. The second composite band is a sheet material 1 structure that is continuously and uniformly distributed on the weak adhesive film.

[0061] The first tape and the second tape are respectively attached to the top and bottom surfaces of the second composite tape, and a weak adhesive film is bonded to the side where the second tape is located to form a third composite tape;

[0062] The edge of the third composite tape is die-cut, and the edge waste 2 of the second tape and the paper of the first tape are discharged.

[0063] A rubber strip is bonded to a predetermined position on the first tape, and a matte film is laminated onto the surface of the first tape to form a fourth composite tape.

[0064] Each piece 1 on the fourth composite belt is die-cut to form a sheet shape, and the waste material 2 is discharged to form a fifth composite belt with sheets evenly distributed on the weak adhesive film.

[0065] This invention removes waste material 2 from the feeding end before continuously cutting the sheet material 1 and rearranges the sheet material 1 so that the rearranged sheet material 1 is continuously and uniformly distributed. When it enters the die-cutting waste removal mechanism 60, it can form a continuous and stable cutting action, which greatly improves the utilization rate of materials and the yield of die-cut products, saves production costs, and improves production efficiency.

[0066] It should be noted that, for ease of distinction, in this embodiment, "sheet material 1" refers to the original material on the sheet foam that has not undergone the die-cutting process, and "sheet material" refers to the material with the product shape formed after the die-cutting process of sheet material 1. That is, sheet material 1 and waste material 2 are spaced apart on the sheet foam. After the die-cutting process, sheet material 1 is formed into sheet material.

[0067] Based on the above embodiments, MARK point 01 is scanned and waste material 2 is removed, and the sheet material 1 is rearranged to form a second composite band. The second composite band is a structure of sheet material 1 continuously and uniformly distributed on a weak adhesive film, including:

[0068] After scanning MARK point 01, the cutting action begins, forming the first knife mark 02;

[0069] After scanning the first knife mark 02, the current position is recorded, and after the first composite belt 3 travels to the set extension distance, the first composite belt 3 is cut to form the second knife mark 03;

[0070] After scanning to MARK point 01, waste material 2 is removed according to the positions of the first cut mark 02 and the second cut mark 03.

[0071] The distance between two adjacent sheet materials after scanning and rejection is compared with the input product jump distance to generate the difference.

[0072] Based on the difference, action compensation is formed, and the weak adhesive film between two adjacent sheet materials 1 is collected, so that the distance between the two adjacent sheet materials 1 is shortened to within ±1mm, forming a second composite band on the weak adhesive film where sheet materials 1 are continuously and evenly distributed.

[0073] With the precise indication and accurate position recording function of the set MARK point 01, the first composite belt 3 can be accurately cut, thereby ensuring that the size of each piece 1 after cutting meets the requirements. Since the size of each rejected waste piece 2 is not the same, the cut pieces 1 need to be rearranged to form a continuous and evenly distributed second composite belt. The input product jump distance is compared with the actual distance between two adjacent pieces 1 after rejection, and jump compensation is formed during the arrangement, so that the pieces 1 can be arranged in sequence so that the position meets the requirements, thereby ensuring the stability of the subsequent die-cutting quality.

[0074] Based on the above embodiments, the dimension of the first tape in the width direction is slightly smaller than the dimension of the second composite tape in the width direction, and the dimension of the second composite tape in the width direction is slightly smaller than the dimension of the second tape in the width direction.

[0075] The first tape, the second composite tape, and the second tape gradually increase in width to ensure that the materials can be completely bonded together during the layering process, avoiding air bubbles or gaps at the edges, thereby improving the bonding quality. It also makes it easier to attach the first tape and the second tape to the second composite tape, and makes alignment and positioning easier, which is convenient for subsequent die-cutting processes.

[0076] Based on the above embodiments, the waste material 2 on the fourth composite tape is discharged, including the discharge of the excess material cut off from both sides of the first bonding tape and the second bonding tape, the excess material between two adjacent sheets, and the protective film on the surface.

[0077] To facilitate subsequent die-cutting, the sheet material 1 on the fourth composite belt needs to be pre-treated to meet the size and surface treatment requirements during die-cutting. By removing excess material from both sides, the width of the obtained sheet material 1 is made compatible with the final sheet size requirements. At the same time, the protective film on the surface is collected directly in this process, which facilitates the subsequent wrapping of the sheet surface with release paper and simplifies the waste material collection step 2.

[0078] Based on the above embodiments, the fifth composite tape is combined with a weak adhesive film and release paper, and then wound up to form a continuous sheet product.

[0079] After die-cutting, the die-cut sheets are evenly arranged on the fifth composite belt. If they are directly rolled up, they will affect each other. However, after the fifth composite belt is laminated with a weak adhesive film and release paper, the weak adhesive film and release paper will isolate and cover the sheets on the fifth composite belt, effectively preventing adhesion, scratches, wear and tear, extending service life, and facilitating storage, handling and use.

[0080] like Figures 9 to 15 As shown, the present invention also provides a seamless die-cutting machine for equal sliced ​​material 1, which applies the above-described seamless die-cutting method for equal sliced ​​material 1, including:

[0081] The traction mechanism 10 is used to composite sheet foam and weak adhesive film to form a first composite belt 3 on which sheet material 1 and waste material 2 are evenly distributed at intervals, and the waste material 2 forms a MARK point 01 at the rear end of the first composite belt 3 in the conveying direction.

[0082] The waste removal and arrangement mechanism 20 is used to scan the MARK point 01 and remove the waste material 2, and rearrange the sheet material 1 to form a second composite belt. The second composite belt is a sheet material 1 structure that is continuously and uniformly distributed on the weak adhesive film.

[0083] The tape laminating mechanism 30 is used to attach the first tape and the second tape to the top and bottom surfaces of the second composite tape respectively, and to laminate with a weak adhesive film on the side where the second tape is located to form a third composite tape.

[0084] Edge rejection mechanism 40 is used to die-cut the edge of the third composite tape and discharge the edge waste 2 of the second tape and the self-contained paper of the first tape.

[0085] The matte film lamination mechanism 50 is used to bond the rubber strip to the first tape at a set position and to laminate a matte film onto the surface of the first tape to form a fourth composite tape.

[0086] The die-cutting and waste removal mechanism 60 is used to die-cut each piece 1 on the fourth composite belt into a sheet shape and discharge the waste 2 to form a fifth composite belt of sheets evenly distributed on the weak adhesive film.

[0087] As shown in the figure, the various mechanisms of the above-mentioned device are sequentially arranged along the conveying direction, so that each process can be carried out simultaneously and form a continuous action. Through the action of the waste removal and arrangement mechanism 20, the waste material 2 on the first composite belt 3 is removed, and the sheet material 1 is rearranged and then sent to the subsequent mechanism for die-cutting and other processes. This effectively ensures that the sheet material 1 is in a continuous and uniform state during die-cutting, forming a stable cutting action, thereby greatly improving the utilization rate of materials and the yield rate of products, saving production costs, and improving production efficiency.

[0088] Based on the above embodiments, the waste rejection arrangement mechanism 20 includes a first scanning component 21, a first cutting component 22, a second scanning component 23, a second cutting component 24, a third scanning component 25, a waste rejection component 26, a fourth scanning component 27 and a jump compensation component 28 arranged sequentially along the conveying direction of the first composite belt 3.

[0089] After the first scanning component 21 scans the MARK point 01, the first cutting component 22 begins the cutting action to form the first knife mark 02;

[0090] After the second scanning component 23 scans the first knife mark 02, it starts recording the current position. After the first composite belt 3 travels to the set extension distance, the second cutting component 24 cuts the first composite belt 3 to form the second knife mark 03.

[0091] After the third scanning component 25 scans the MARK point 01, the waste rejection component 26 rejects the waste material 2 according to the positions of the first cut mark 02 and the second cut mark 03.

[0092] The fourth scanning component 27 scans the distance between two adjacent pieces 1 after rejection and compares it with the input product jump distance to generate a difference.

[0093] The jump compensation component 28 performs motion compensation based on the difference, collects the weak adhesive film between two adjacent sheet materials 1, and shortens the distance between the two adjacent sheet materials 1 to within ±1mm, forming a second composite band on which the sheet materials 1 are continuously and evenly distributed on the weak adhesive film.

[0094] The required size of sheet material 1 is determined by the scanning and positioning function of multiple scanning components, so that sheet material 1 is separated from waste material 2. After the waste material 2 is removed, the jump compensation component 28 generates motion compensation based on the scanning result, and collects the weak adhesive film between two sheets material 1, so that the distance between two adjacent sheets material 1 is shortened to within ±1mm, leaving a gap for subsequent die cutting, thereby improving the arrangement accuracy of sheet material 1 and ensuring that the position and spacing of each sheet material 1 meet the requirements.

[0095] It should be noted that when removing waste material 2, a waste removal roller can be used. The outer shaft surface of the waste removal roller has a waste removal point that protrudes locally. The non-adhesive side of the tape is attached to and wrapped around the waste removal roller, and rotates synchronously with the rotation of the waste removal roller. The waste removal component 26 removes waste material 2 according to the positions of the first cut mark 02 and the second cut mark 03, where the first cut mark 02 is the starting end of the next piece of material 1, and the second cut mark 03 is the end of the previous piece of material 1. After the third scanning component 25 scans the MARK point 01, the waste removal roller drives the tape to rotate. When the waste removal point rotates to a position relative to the first cut mark 02 and the second cut mark 03, the adhesive side of the tape comes into contact with the waste material 2, causing the waste material 2 to separate from the weak adhesive film at the bottom and come into contact with the non-adhesive side of the tape. It is then carried away by the rotation of the waste removal roller, thereby realizing the removal of waste material 2.

[0096] Based on the above embodiments, the first scanning component 21, the second scanning component 23, the third scanning component 25 and the fourth scanning component 27 have the same structure, each including: a fixed rod 20a, a rotating rod 20b, a moving rod 20c, a movable block 20d and a scanning head 20e;

[0097] One end of the rotating rod 20b is rotatably connected to the fixed rod 20a, and the other end is perpendicularly connected to the end of the moving rod 20c. The moving rod 20c and the fixed rod 20a are arranged parallel to each other. One end of the movable block 20d is fixedly connected to the scanning head 20e, and the other end is sleeved on the moving rod 20c. The scanning head 20e is set facing the top surface of the first composite belt 3.

[0098] It should be noted that the first scanning component 21, the second scanning component 23, the third scanning component 25, and the fourth scanning component 27 have the same structure. The corresponding scanning sensing functions can be achieved simply by changing the mounting position of the fixing rod 20a relative to the entire die-cutting machine and the tilt angle of the scanning head 20e relative to the first composite belt 3, depending on the different setting positions. This demonstrates strong versatility. Furthermore, using scanning components with the same structure achieves standardization and uniformity of parts, thereby improving product maintainability and reliability, ensuring consistent scanning positioning effects, and providing stable and reliable scanning results.

[0099] Based on the above embodiments, the width of the first tape is slightly smaller than that of the second composite tape, and the width of the second composite tape is slightly smaller than that of the second tape. The widths of the first tape, the second composite tape, and the second tape gradually increase, ensuring complete adhesion between the materials during layer-by-layer lamination, avoiding air bubbles or gaps at the edges, thereby improving lamination quality. It also makes it easier to attach the first and second tapes to the second composite tape; easier alignment and positioning; and facilitates subsequent die-cutting processes.

[0100] Based on the above embodiments, a winding mechanism 70 is also included, used to laminate the fifth composite tape with the weak adhesive film and release paper, and wind it up to form a continuous sheet product. After die-cutting, the die-cut sheets are evenly arranged on the fifth composite tape. If they are directly wound into a roll, they will affect each other. However, after laminating the fifth composite tape with the weak adhesive film and release paper, the weak adhesive film and release paper provide an insulating and covering effect on the sheets on the fifth composite tape, effectively preventing adhesion, scratches, wear, etc., extending service life, and facilitating storage, handling, and use.

[0101] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method for seamless die-cutting of equal-sized sliced ​​materials, characterized in that, Includes the following steps: The sheet foam and the weak adhesive film are combined to form a first composite belt on the weak adhesive film with sheet material and waste material evenly distributed at intervals, and each waste material has a MARK point at the rear end of the first composite belt in the conveying direction. Scan the MARK points and remove the waste material, and rearrange the sheet material to form a second composite band, which is a sheet material structure that is continuously and uniformly distributed on the weak adhesive film. The first tape and the second tape are respectively attached to the top and bottom surfaces of the second composite tape, and a weak adhesive film is bonded to the side where the second tape is located to form a third composite tape; The edges of the third composite tape are die-cut, and the edge waste of the second tape and the paper from the first tape are discharged. A rubber strip is bonded to a predetermined position on the first tape, and a matte film is laminated onto the surface of the first tape to form a fourth composite tape. Each piece of material on the fourth composite belt is die-cut to form a sheet shape, and the waste is discharged to form a fifth composite belt of sheets evenly distributed on the weak adhesive film; The scanning of MARK points and removal of waste materials, followed by rearranging the sheet materials to form a second composite band, wherein the second composite band is a sheet material structure continuously and uniformly distributed on a weakly adhesive film, includes: After scanning the MARK point, the cutting action begins, forming the first knife mark; After the first knife mark is detected, the current position is recorded. After the first composite belt travels to the set extension distance, the first composite belt is cut to form the second knife mark. After scanning the MARK point, the waste material is removed according to the positions of the first and second cut marks. The distance between two adjacent pieces after scanning and rejection is compared with the input product jump distance to generate the difference. Based on the difference, action compensation is generated, and the weak adhesive film between two adjacent sheets is collected, so that the distance between the two adjacent sheets is shortened to within ±1mm, forming a second composite band on which the sheets are continuously and evenly distributed.

2. The seamless die-cutting method for equal-sized sliced ​​materials according to claim 1, characterized in that, The width of the first tape is slightly smaller than the width of the second composite tape, and the width of the second composite tape is slightly smaller than the width of the second tape.

3. The seamless die-cutting method for equal-slice materials according to claim 1, characterized in that, The waste material on the fourth composite tape is discharged, including the excess material cut off from both sides of the first and second bonding tapes, the excess material between two adjacent sheets, and the protective film on the surface.

4. The seamless die-cutting method for equal-sized sliced ​​materials according to claim 1, characterized in that, The fifth composite tape is combined with a weak adhesive film and release paper, and then wound up to form a continuous sheet product.

5. A seamless die-cutting machine for equal-sized sliced ​​materials, employing the seamless die-cutting method for equal-sized sliced ​​materials as described in any one of claims 1 to 4, characterized in that, include: A traction mechanism is used to composite sheet foam and weak adhesive film to form a first composite belt on which sheet material and waste material are evenly distributed at intervals, and the waste material forms a MARK point at the rear end of the first composite belt in the conveying direction. The waste removal and arrangement mechanism is used to scan the MARK points and remove the waste materials, and rearrange the sheet materials to form a second composite belt. The second composite belt is a sheet material structure that is continuously and uniformly distributed on the weak adhesive film. A tape laminating mechanism is used to attach a first tape and a second tape to the top and bottom surfaces of a second composite tape, respectively, and to laminate with a weak adhesive film on the side where the second tape is located to form a third composite tape. An edge rejection mechanism is used to die-cut the edges of the third composite tape and discharge the edge waste of the second tape and the paper attached to the first tape. A matte film lamination mechanism is used to bond a rubber strip to a predetermined position on a first tape and laminate a matte film onto the surface of the first tape to form a fourth composite tape. The die-cutting and waste removal mechanism is used to die-cut each piece of material on the fourth composite belt into sheet shape and remove waste material to form a fifth composite belt of sheets evenly distributed on the weak adhesive film.

6. The seamless die-cutting machine for equal-sized slices according to claim 5, characterized in that, The waste rejection arrangement mechanism includes a first scanning component, a first cutting component, a second scanning component, a second cutting component, a third scanning component, a waste rejection component, a fourth scanning component, and a runout compensation component arranged sequentially along the first composite belt conveying direction; After the first scanning component scans the MARK point, the first cutting component begins the cutting action to form the first blade mark; After the second scanning component scans the first knife mark, it begins to record the current position. After the first composite belt travels to a set extension distance, the second cutting component cuts the first composite belt to form the second knife mark. After the third scanning component scans the MARK point, the waste removal component removes the waste material according to the positions of the first and second cutting marks. The fourth scanning component scans the distance between two adjacent pieces after rejection and compares it with the input product jump distance to generate a difference. The vibration compensation component generates motion compensation based on the difference, collects the weak adhesive film between two adjacent sheets, and shortens the distance between the two adjacent sheets to within ±1mm, forming a second composite band on the weak adhesive film where the sheets are continuously and evenly distributed.

7. The seamless die-cutting machine for equal-sized slices according to claim 6, characterized in that, The first scanning component, the second scanning component, the third scanning component, and the fourth scanning component have the same structure, each including: a fixed rod, a rotating rod, a moving rod, a movable block, and a scanning head; One end of the rotating rod is rotatably connected to the fixed rod, and the other end is perpendicularly connected to the end of the moving rod. The moving rod and the fixed rod are arranged parallel to each other. One end of the movable block is fixedly connected to the scanning head, and the other end is sleeved on the moving rod. The scanning head is arranged facing the top surface of the first composite belt.

8. The seamless die-cutting machine for equal-sized slices according to claim 5, characterized in that, The width of the first tape is slightly smaller than the width of the second composite tape, and the width of the second composite tape is slightly smaller than the width of the second tape.

9. The seamless die-cutting machine for equal-sized slices according to claim 5, characterized in that, It also includes a winding mechanism for bonding the fifth composite tape with a weak adhesive film and release paper, and winding it into a continuous sheet product.

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