Circular knife die-cutting apparatus for sheet products

Abstract

The application discloses a round knife die-cutting device for sheet products, comprising a rack, a first feeding roller for mounting a base substrate, a plurality of second feeding rollers for mounting a material belt, and a plurality of material collecting rollers for collecting waste materials, wherein the base substrate further comprises a substrate layer and a release film layer attached to the front surface of the substrate layer; a reversing shaft is arranged on the upstream side of the die-cutting unit; the outer circumferential surface of the reversing shaft arranged higher than the die-cutting gap is in sliding contact with the back surface of the substrate layer on the base substrate; at least one reversing assembly is arranged on the upstream side of the reversing shaft; the base substrate with the release film layer facing upwards moves downstream and sequentially passes through the die-cutting gaps of the plurality of die-cutting units; and a horizontal distribution plate is arranged directly below the reversing shaft. The application can realize the tearing of the release film layer, can code the back surface of the reversed substrate layer before tearing the release film layer, and can avoid damage to the substrate layer during the reversing process.

Description

Technical Field

[0001] The invention relates to a circular knife die-cutting device for sheet products, belonging to the technical field of die-cutting. Background Art

[0002] Currently, some electronic product components are produced using a circular die-cutting process. These components consist of a release film, a molding compound, and a film handle. This current process primarily involves cutting the raw material onto the release material to form the molding compound, and then cutting the release material into the finished product.

[0003] The existing circular die-cutting method for processing electronic product components presents the following problems: 1. Product identity cannot be effectively traced. 2. Multiple CCD cameras on the circular die-cutting device for sheet products cannot be triggered simultaneously to capture images, resulting in significant latency. This makes it impossible to fully determine the quality (or dimensions) of the processed products, and traceability is difficult. When batch defects occur, immediate corrections are not possible, leading to losses caused by widespread defects. 3. After processing, good and defective materials cannot be identified or distinguished, requiring manual inspection and differentiation after mixed material is unavailable, resulting in low efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a circular knife die-cutting device for sheet products, which can not only tear off the release film layer on the bottom substrate, but also can inkjet the back side of the substrate layer that has been reversed before tearing off the release film layer, and can also avoid damage to the substrate layer during the reversing process.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is: a circular knife die-cutting device for sheet products, comprising: a frame, a first unwinding roller for mounting a base substrate, a plurality of second unwinding rollers for mounting a material belt, and a plurality of take-up rollers for winding up waste materials, wherein the first unwinding roller, the second unwinding roller, and the take-up roller are each rotatably mounted on the frame, and the frame is further mounted with a plurality of die-cutting units spaced apart along the moving direction of the base substrate, the base substrate further comprising a base layer and a release film layer attached to the front surface of the base layer, the die-cutting unit comprising a die-cutting base mounted on the frame and a first die-cutting roller and a second die-cutting roller, each of which is rotatably mounted on the die-cutting base, a die-cutting gap for the base layer of the base substrate to pass through is formed between the first die-cutting roller and the second die-cutting roller, which are arranged above and below, and the front surface of the base layer faces upward;

[0006] A reversing shaft mounted on the frame is provided upstream of the die-cutting unit, the outer circumferential surface of the reversing shaft arranged above the die-cutting gap is in sliding contact with the back surface of the substrate layer on the bottom substrate, at least one reversing assembly is provided upstream of the reversing shaft, the reversing assembly comprises a reversing support mounted on the frame and a first roller and a second roller each rotatably mounted on the reversing support, a reversing gap for the bottom substrate to pass through and having the same height as the die-cutting gap is formed between the first roller and the second roller located above the first roller, the outer circumferential surface of the second roller is in sliding contact with the release film layer on the front surface of the substrate layer, a coding assembly is provided between the reversing shaft and the reversing assembly, and the coding device of the coding assembly is arranged toward the back surface of the substrate layer on the bottom substrate;

[0007] The base substrate, which passes through the reversing gap between the reversing shaft and the reversing assembly in sequence and has the release film layer facing upward, moves downstream and passes through the die-cutting gaps of several die-cutting units in sequence. A horizontally extending dividing plate is provided directly below the reversing shaft. The lower surface of the dividing plate provided between the reversing assembly and the die-cutting unit is provided close to the release film layer of the base substrate. The base substrate is peeled off by the release film layer passing under the dividing plate and moves toward the receiving roller located above the dividing plate and is wound onto the receiving roller.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, a material receiving assembly is disposed on the outer side of one end of the frame away from the reversing assembly, cooperating with the die-cutting unit at the end of the substrate's moving direction. Four flying cameras are disposed in an area adjacent to the material receiving assembly and within the intervals formed between adjacent die-cutting units, corresponding to the four corners of the die-cut product on the substrate. The four flying cameras are all connected to a signal trigger via a common IO signal transmission line.

[0010] 2. In the above solution, each of the flying cameras is mounted on the die-cutting base of the die-cutting unit via a support block.

[0011] 3. In the above solution, at least one barcode scanner is provided on the frame and located upstream and downstream of the flying camera.

[0012] 4. In the above scheme, the material receiving assembly further includes: a material receiving base, a material receiving belt, and a first sorting material belt and a second sorting material belt stacked up and down at one end of the material receiving belt away from the die-cutting unit, one end of the material receiving belt close to the die-cutting unit is rotatably mounted on the material receiving base through a first support frame, and the other end of the material receiving belt is hingedly connected to a piston rod of a sorting cylinder obliquely mounted on the upper surface of the material receiving base. When the piston rod of the sorting cylinder is in an extended state, the upper surface of the material receiving belt and the upper surface of the first sorting material belt are located in the same plane; when the piston rod of the sorting cylinder is in a retracted state, the upper surface of the material receiving belt with one end inclined downward is located in the same plane as the upper surface of the second sorting material belt obliquely arranged below the first sorting material belt.

[0013] 5. In the above solution, a receiving box is provided at one end of each of the first sorting belt and the second sorting belt away from the receiving belt.

[0014] 6. In the above solution, a first cylinder and a second cylinder are arranged above the material splicing belt and spaced apart along the material conveying direction thereof, and a pressing roller is rotatably mounted on the lower end of each movable portion of the vertically arranged first cylinder and second cylinder.

[0015] 7. In the above solution, the first cylinder and the second cylinder are each installed on a second support frame.

[0016] 8. In the above solution, one end of the dividing plate facing the die-cutting unit is configured as an arc surface, and the arc surface is in sliding contact with the release film layer.

[0017] 9. In the above solution, the upper surface of the dividing plate facing one end of the die-cutting unit is set as a beveled surface.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0019] The cam is secured to the upper edge of the roll and is adapted to move the roll of film towards the workpiece, whereby the roll is moved in a direction of rotation relative to the workpiece, the roll being secured to the workpiece by the cam. A coding assembly is arranged between the parts, and the coding device of the coding assembly is arranged toward the back side of the substrate layer on the bottom substrate. The bottom substrate with the release film layer facing up passes through the reversing gap between the reversing shaft and the reversing assembly in turn, and moves downstream and passes through the die-cutting gaps of several die-cutting units in turn. A horizontally extending dividing plate is arranged directly below the reversing shaft, and the lower surface of the dividing plate arranged between the reversing assembly and the die-cutting unit is arranged close to the release film layer of the bottom substrate. The substrate layer is peeled off after passing through the release film layer under the dividing plate, and moves toward the receiving roller located above the dividing plate and is wound onto the receiving roller. This can not only realize the tearing off of the release film layer on the bottom substrate to facilitate the subsequent compounding of the remaining material strips to the substrate layer of the bottom substrate, but also can perform coding on the back side of the reversed substrate layer before tearing off the release film layer, thereby realizing continuous and efficient coding operation without being affected by the drying time of the coding ink, ensuring the integrity of the coding pattern and the traceability of the product based on the coding, and avoiding damage to the substrate layer during the reversing process.

[0020] 2. The circular knife die-cutting device for sheet products of the present invention has a material receiving assembly on the outer side of the frame away from the reversing assembly, which cooperates with the die-cutting unit at the end of the moving direction of the base substrate. Four flying cameras corresponding to the four corners of the die-cut product on the base substrate are arranged in the area near the material receiving assembly and in the interval formed between adjacent die-cutting units. The four flying cameras are connected to the signal trigger through the same IO signal transmission line. While realizing the detection of the length and width of the die-cut product, the four flying cameras can be triggered with zero delay to synchronously take pictures of the moving die-cut product, avoiding the situation that the photo is distorted and the detection accuracy is reduced due to signal delay, thereby realizing accurate measurement of the size of the die-cut product; further, at least one barcode scanning gun is respectively provided on the frame and upstream and downstream of the flying camera, and the material receiving assembly includes a material receiving base, a material receiving belt and a first sorting belt and a second sorting belt stacked up and down on the end of the material receiving belt away from the die-cutting unit. The end of the material receiving belt close to the die-cutting unit is rotatably mounted on the material receiving base through a support frame, and the other end of the material receiving belt is connected to the support frame. The piston rod of a sorting cylinder obliquely mounted on the upper surface of the material receiving base is hingedly connected. When the piston rod of the sorting cylinder is in an extended state, the upper surface of the material receiving belt is in the same plane as the upper surface of the first sorting belt. When the piston rod of the sorting cylinder is in a retracted state, the upper surface of the material receiving belt with one end tilted downward is in the same plane as the upper surface of the second sorting belt obliquely arranged below the first sorting belt. The measurement data can be bound to each product one by one through the barcode scanning gun and the product code on the base material, and the data can be automatically sorted. Automatic sorting of good and bad products is achieved based on the measurement results, which improves production efficiency while avoiding damage to the products caused by manual work; in addition, a first cylinder and a second cylinder are arranged above the splicing belt and are spaced apart along its material conveying direction, and a pressing roller is rotatably mounted on the lower end of each movable part of the vertically arranged first cylinder and second cylinder, which can increase the friction between the product and the splicing belt to ensure the transportation efficiency of the splicing belt for the product, and can also pre-press the defective products to prevent them from flowing to the sorting belt for good products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attachment Figure 1 It is a schematic structural perspective diagram of a circular knife die-cutting device for sheet products of the present invention;

[0022] Attachment Figure 2 It is a structural front view of the circular knife die-cutting device for sheet products of the present invention;

[0023] Attachment Figure 3 for Figure 2 A magnified view of the local structure;

[0024] Attachment Figure 4 It is a structural schematic diagram of the material receiving assembly in the circular knife die-cutting device for sheet products of the present invention;

[0025] Attachment Figure 5 It is a structural schematic diagram of the reversing assembly in the circular knife die-cutting device for sheet products of the present invention;

[0026] Attachment Figure 6 It is a structural schematic diagram of the die-cutting unit in the circular knife die-cutting device for sheet products of the present invention;

[0027] Attachment Figure 7 This is a top view of the flying camera in the circular knife die-cutting device for sheet products of the present invention when it is connected.

[0028] In the above figures: 100, bottom substrate; 101, substrate layer; 102, release film layer; 1, frame; 2, first unloading roller; 3, second unloading roller; 4, take-up roller; 5, die-cutting unit; 51, die-cutting base; 52, first die-cutting roller; 53, second die-cutting roller; 6, reversing shaft; 7, reversing assembly; 71, reversing support; 72, first roller; 73, second roller; 74, third roller; 8, inkjet assembly; 81, inkjet printer; 9, Material separation plate; 10. Gear; 11. Flying camera; 111. Support block; 12. IO signal transmission line; 13. Material receiving assembly; 14. Material receiving base; 15. Material receiving belt; 151. First support frame; 152. Second support frame; 16. First sorting material belt; 17. Second sorting material belt; 18. Sorting cylinder; 19. Barcode scanner; 20. First cylinder; 21. Second cylinder; 22. Pressing roller; 23. Material receiving box; 24. Barcode scanner. DETAILED DESCRIPTION

[0029] The present invention can be further understood by referring to the following specific examples, which, however, are not intended to limit the present invention.

[0030] Embodiment 1: A circular knife die-cutting device for sheet products, comprising: a frame 1, a first unloading roller 2 for mounting a base substrate 100, a plurality of second unloading rollers 3 for mounting a material belt, and a plurality of take-up rollers 4 for winding up waste materials, wherein the first unloading roller 2, the second unloading roller 3, and the take-up roller 4 are each rotatably mounted on the frame 1, and the frame 1 is further mounted with a plurality of die-cutting units 5 arranged at intervals along the moving direction of the base substrate 100, the base substrate 100 further comprising a base layer 101 and a release film layer 102 applied to the front surface of the base layer 101, the die-cutting unit 5 comprising a die-cutting base 51 mounted on the frame 1 and a first die-cutting roller 52 and a second die-cutting roller 53 each rotatably mounted on the die-cutting base 51, a die-cutting gap for the base layer 101 of the base substrate 100 to pass through is formed between the first die-cutting roller 52 and the second die-cutting roller 53 arranged above and below, and the front surface of the base layer 101 faces upward;

[0031] A reversing shaft 6 mounted on the machine frame 1 is provided upstream of the die-cutting unit 5. The outer circumferential surface of the reversing shaft 6, which is arranged above the die-cutting gap, is in sliding contact with the back surface of the substrate layer 101 on the bottom substrate 100. At least one reversing assembly 7 is provided upstream of the reversing shaft 6. The reversing assembly 7 includes a reversing support 71 mounted on the machine frame 1 and a first roller 72 and a second roller 73, each of which is rotatably mounted on the reversing support 71. A reversing gap for the bottom substrate 100 to pass through and having the same height as the die-cutting gap is formed between the first roller 72 and the second roller 73 located above it. The outer circumferential surface of the second roller 73 is in sliding contact with the release film layer 102 on the front surface of the substrate layer 101. A coding assembly 8 is provided between the reversing shaft 6 and the reversing assembly 7. The coding device 81 of the coding assembly 8 is arranged toward the back surface of the substrate layer 101 on the bottom substrate 100.

[0032] The base substrate 100 passes through the reversing gap of the reversing shaft 6 and the reversing component 7 in sequence with the release film layer 102 facing upward, moves downstream and passes through the die-cutting gaps of several die-cutting units 5 in sequence. A horizontally extending dividing plate 9 is provided directly below the reversing shaft 6. The lower surface of the dividing plate 9 arranged between the reversing component 7 and the die-cutting unit 5 is arranged close to the release film layer 102 of the base substrate 100. The release film layer 102 passing under the dividing plate 9 peels off the base substrate 101 and moves toward the receiving roller 4 located above the dividing plate 9 and is wound onto the receiving roller 4.

[0033] A material receiving assembly 13 is provided on the outer side of the end of the frame 1 away from the reversing assembly 7, and cooperates with the die-cutting unit 5 at the end of the moving direction of the base substrate 100. Four flying cameras 11 are provided in the area near the material receiving assembly 13 and in the intervals formed between adjacent die-cutting units 5, corresponding to the four corners of the die-cut product on the base substrate 100. The four flying cameras 11 are connected to the signal trigger via the same IO signal transmission line 12.

[0034] Each of the above-mentioned flying cameras 11 is mounted on the die-cutting base 51 of the die-cutting unit 5 via a support block 111;

[0035] The end of the above-mentioned dividing plate 9 facing the die-cutting unit 5 is set as an arc surface, and this arc surface is in sliding contact with the above-mentioned release film layer 102; the upper surface of the end of the above-mentioned dividing plate 9 facing the die-cutting unit 5 is set as a beveled surface;

[0036] The first die-cutting roller 52 and the second die-cutting roller 53 of the die-cutting unit 5, and the first roller 72 and the second roller 73 of the reversing assembly 7 are all connected by mutually meshing gears 10. The ends of the first die-cutting roller 52 or the second die-cutting roller 53, the first roller 72 or the second roller 73, respectively, facing away from the gear 10, are connected to a drive assembly mounted on the die-cutting base 51 and the reversing support 71.

[0037] A third roller 74 rotatably mounted on the reversing support 71 is provided above the second roller 73 of the reversing assembly 7. The third roller 74 and the second roller 73 are connected to each other via meshing gears 10. The substrate 100 first passes through the reversing gap between the third roller 74 and the second roller 73 and then passes through the reversing gap between the second roller 73 and the first roller 72.

[0038] The two reversing assemblies 7 are spaced apart along the moving direction of the base substrate 100, the inkjet coding assembly 8 is disposed between the two reversing assemblies 7, and the dividing plate 9 is mounted on the reversing support 71 of the reversing assembly 7 near the die-cutting unit 5; the flying camera 11 is a CCD camera equipped with a light source;

[0039] The inkjet printer 81 is a non-contact inkjet printer; a scanner 24 is installed on the die-cutting base 51 of any of the die-cutting units 5 for verifying the product code sprayed on the back of the substrate layer 101 by the inkjet printer 81.

[0040] Embodiment 2: A circular knife die-cutting device for sheet products, comprising: a frame 1, a first feeding roller 2 for mounting a base substrate 100, a plurality of second feeding rollers 3 for mounting a material belt, and a plurality of receiving rollers 4 for winding up waste material, wherein the first feeding roller 2, the second feeding roller 3, and the receiving roller 4 are each rotatably mounted on the frame 1, and the frame 1 is further provided with a plurality of die-cutting units 5 arranged at intervals along the moving direction of the base substrate 100, characterized in that: the base substrate 100 further comprises a base material layer 101 and a release film layer 102 applied to the front surface of the base material layer 101, the die-cutting unit 5 comprises a die-cutting base 51 mounted on the frame 1 and a first die-cutting roller 52 and a second die-cutting roller 53 each rotatably mounted on the die-cutting base 51, a die-cutting gap is formed between the first die-cutting roller 52 and the second die-cutting roller 53 arranged above and below for the base material layer 101 of the base substrate 100 to pass through, and the front surface of the base material layer 101 faces upward;

[0041] A reversing shaft 6 mounted on the machine frame 1 is provided upstream of the die-cutting unit 5. The outer circumferential surface of the reversing shaft 6, which is arranged above the die-cutting gap, is in sliding contact with the back surface of the substrate layer 101 on the bottom substrate 100. At least one reversing assembly 7 is provided upstream of the reversing shaft 6. The reversing assembly 7 includes a reversing support 71 mounted on the machine frame 1 and a first roller 72 and a second roller 73, each of which is rotatably mounted on the reversing support 71. A reversing gap for the bottom substrate 100 to pass through and having the same height as the die-cutting gap is formed between the first roller 72 and the second roller 73 located above it. The outer circumferential surface of the second roller 73 is in sliding contact with the release film layer 102 on the front surface of the substrate layer 101. A coding assembly 8 is provided between the reversing shaft 6 and the reversing assembly 7. The coding device 81 of the coding assembly 8 is arranged toward the back surface of the substrate layer 101 on the bottom substrate 100.

[0042] The base substrate 100 passes through the reversing gap of the reversing shaft 6 and the reversing component 7 in sequence with the release film layer 102 facing upward, moves downstream and passes through the die-cutting gaps of several die-cutting units 5 in sequence. A horizontally extending dividing plate 9 is provided directly below the reversing shaft 6. The lower surface of the dividing plate 9 arranged between the reversing component 7 and the die-cutting unit 5 is arranged close to the release film layer 102 of the base substrate 100. The release film layer 102 passing under the dividing plate 9 peels off the base substrate 101 and moves toward the receiving roller 4 located above the dividing plate 9 and is wound onto the receiving roller 4.

[0043] At least one barcode scanner 19 is provided on the frame 1 and located upstream and downstream of the flying camera 11;

[0044] The above-mentioned material splicing assembly 13 further includes: a material splicing base 14, a material splicing belt 15, and a first sorting material belt 16 and a second sorting material belt 17 stacked up and down on the end of the material splicing belt 15 away from the die-cutting unit 5. The end of the above-mentioned material splicing belt 15 close to the die-cutting unit 5 is rotatably mounted on the material splicing base 14 through a first support frame 151, and the other end of the above-mentioned material splicing belt 15 is hingedly connected to the piston rod of a sorting cylinder 18 obliquely mounted on the upper surface of the material splicing base 14. When the piston rod of the above-mentioned sorting cylinder 18 is in an extended state, the upper surface of the above-mentioned material splicing belt 15 and the upper surface of the first sorting material belt 16 are in the same plane. When the piston rod of the above-mentioned sorting cylinder 18 is in a retracted state, the upper surface of the above-mentioned material splicing belt 15 with one end tilted downward is in the same plane as the upper surface of the second sorting material belt 17 obliquely arranged below the first sorting material belt 16.

[0045] The first sorting belt 16 and the second sorting belt 17 are each provided with a receiving box 23 at one end away from the receiving belt 15;

[0046] A first cylinder 20 and a second cylinder 21 are arranged above the above-mentioned material connecting belt 15 and are spaced apart along its material conveying direction. A pressing roller 22 is rotatably installed at the lower end of the movable part of each of the vertically arranged first cylinder 20 and second cylinder 21; the above-mentioned first cylinder 20 and second cylinder 21 are each installed on a second support frame 152.

[0047] When the circular die-cutting device for sheet products is used, it can not only realize the tearing off of the release film layer on the base substrate to facilitate the subsequent lamination of the remaining material strips to the base layer of the base substrate, but also can perform coding on the back side of the reversed base layer before tearing off the release film layer. This can achieve continuous and efficient coding operation without being affected by the drying time of the coding ink, ensure the integrity of the coding pattern and the traceability of the coding-based products, and avoid damage to the base layer during the reversing process.

[0048] In addition, while detecting the length and width of the die-cut product, the system can trigger four flying cameras to synchronously take photos of the moving die-cut product with zero delay, avoiding photo distortion and reduced detection accuracy caused by signal delay, and achieving accurate measurement of the die-cut product size.

[0049] Furthermore, the measurement data can be bound to each product one by one through the barcode scanner and the product code on the base material, and the good and bad products can be automatically sorted according to the measurement results, thereby improving production efficiency while avoiding damage to the products caused by manual operations; in addition, the friction between the product and the splicing belt can be increased to ensure the efficiency of the splicing belt in transporting the product, and the bad products can be pre-pressed to prevent them from flowing to the sorting belt of good products.

[0050] Working principle:

[0051] When in use, the first unwinding roller is used to unwind the base substrate, the multiple second unwinding rollers are used to unwind other strips that need to be laminated to the base substrate, and the multiple take-up rollers are used to take up the base substrate, the release film on the strip, and the waste material cut by the die-cutting unit;

[0052] The first die-cutting roller and the second die-cutting roller of the die-cutting unit can be rollers with smooth surfaces for laminating the material strip onto the base substrate by extrusion, or rollers with die-cutting blades for rolling-cutting the material strip and the base substrate as required after passing through the die-cutting gap formed therebetween;

[0053] According to the specific requirements of the product, the material belt and die-cutting unit are specifically set up, which belongs to the scope of existing technology and will not be described here;

[0054] The base material layer of the roll-shaped base material is generally transparent PET, and the incoming material is attached with a layer of release film;

[0055] The base substrate with the release film layer is mounted on the first unwinding roller, and one end of the base substrate is pulled out and passed through the reversing shaft and the reversing assembly in sequence, and then passes through the multiple die-cutting units downstream in sequence;

[0056] In the above process, the back of the base substrate moves through the reversing shaft to the reversing assembly, facing the inkjet printer. The inkjet printer prints the product code on the back of the base substrate at regular time intervals. Afterwards, the base substrate moves through the reversing assembly to the die-cutting unit, restoring the base substrate to a state where the front side faces upward. Next, the release film layer is peeled off from the front side of the base substrate layer and wound onto a take-up roller. The take-up roller rewinds the release film layer, so that the base substrate with the release film layer peeled off and the front side facing upward continues to move to the downstream die-cutting unit for subsequent processes.

[0057] Based on the above arrangement, the base substrate, which was originally facing up, is reversed twice before peeling off the release film layer, and the product code is sprayed on the back of the base substrate during this process. This can avoid damage to the adhesive layer on the front side of the base substrate layer due to the reversal, and eliminate the influence of the drying time of the coding ink.

[0058] After laminating and cutting multiple layers of material strips, and before the product is formed but cut, four flying cameras are used to photograph and measure the four corners of the product to obtain the product's length and width. The measurement data is then bound to each product through the product code. During this process, the four flying cameras are connected to the signal trigger via the same IO signal transmission line. This allows the four flying cameras to be triggered synchronously with zero delay to take photos of the moving die-cut product, avoiding photo distortion and reduced detection accuracy caused by signal delay, thereby achieving accurate measurement of the die-cut product dimensions.

[0059] After that, the products are cut and the barcode scanner downstream of the flying camera is used to identify the products passing under it, so as to facilitate the subsequent sorting of the products.

[0060] The cut products are moved to the splicing belt of the splicing component in sequence;

[0061] When the products on the splicing belt are good, the piston rod of the sorting cylinder is extended. At this time, the splicing belt is connected to the first sorting belt. The good products are transferred to the first sorting belt through the splicing belt and finally fall into the splicing box downstream of the first sorting belt. During the above process, the second cylinder can be switched from the contracted state to the extended state. The friction between the good products and the splicing belt is increased by the pinch roller that moves with it to ensure the effectiveness and efficiency of the splicing belt transportation and prevent the good products from slipping on the splicing belt.

[0062] When the product on the splicing belt is defective, the piston rod of the sorting cylinder is placed in a retracted state. At this time, the splicing belt is connected to the second sorting belt. The defective products are transferred to the second sorting belt through the splicing belt and finally fall into the splicing box downstream of the second sorting belt. In the above process, the first cylinder can be switched from a retracted state to an extended state. The friction between the defective products and the splicing belt is increased by the pinch roller that moves with it to ensure the effectiveness and efficiency of the splicing belt transportation, prevent the defective products from slipping on the splicing belt, and improve the stability of the defective products on the splicing belt during the downward movement of one end of the splicing belt.

[0063] Non-contact inkjet coding: The inkjet coding equipment is fixed to the circular die-cutting device of the sheet product through a customized fixing mechanism, connected to the customized MES system, and the coding content is issued, so that it can realize the coding of the product on the circular die-cutting device of the sheet product. The product code is then checked by the rear scanner. This can prevent problems such as product traceability caused by wrong code, duplicate code, and missed code.

[0064] Flying CCD: By designing a customized fixing mechanism for the circular knife die-cutting device of sheet products, four CCDs are fixed on the circular knife die-cutting device of sheet products, and then connected to the die-cutting machine signal trigger through a modified 4-in-1 IO signal line, so that the four CCDs can be triggered to take pictures and measure at the same time, achieving zero-delay signal triggering, realizing product size, precise measurement, and 100% inspection.

[0065] Sorting automation: The purpose is to solve the abnormal processing and differentiation problems that occur during manual scanning and inspection. It is suitable for scanning and automatic material collection auxiliary equipment in most industries. It solves the problem of excessive contact between products during manual scanning and reduces product deformation and scratches caused by insufficient manual scanning techniques. Through modules and fixed scanning guns, scanning, loading, differentiation and inspection are realized, which greatly improves the yield rate and CT. Combined with the scanning gun to scan the product QR code to check the MES system, MES sends instructions to the sorting automation, and the sorting automation distinguishes materials (OK / NG).

[0066] Action description: 1. The product flows to the lifting mechanism carrier plate and is positioned; 2. The barcode scanner is used to scan the code; 3. If the code is scanned, the lifting mechanism descends and flows to the NG material box; 4. If the code is scanned, the product flows to the OK material box; 5. When the material box is full, the material box module is moved to replace the material box.

[0067] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A circular die cutting device for sheet products, comprising: A machine frame (1), a first unwinding roller (2) for mounting a base substrate (100), a plurality of second unwinding rollers (3) for mounting a material strip, and a plurality of take-up rollers (4) for taking up waste materials, wherein the first unwinding roller (2), the second unwinding roller (3), and the take-up roller (4) are each rotatably mounted on the machine frame (1), and the machine frame (1) is further mounted with a plurality of die-cutting units (5) spaced apart along the moving direction of the base substrate (100), characterized in that: the base substrate (100) further comprises a base substrate The die-cutting unit (5) comprises a die-cutting base (51) mounted on the frame (1) and a first die-cutting roller (52) and a second die-cutting roller (53) each rotatably mounted on the die-cutting base (51). A die-cutting gap is formed between the first die-cutting roller (52) and the second die-cutting roller (53) arranged above and below for the base material layer (101) of the bottom base material (100) to pass through, with the front side of the base material layer (101) facing upwards. A reversing shaft (6) mounted on the frame (1) is provided upstream of the die-cutting unit (5), and the outer circumferential surface of the reversing shaft (6) arranged above the die-cutting gap is in sliding contact with the back surface of the substrate layer (101) on the bottom substrate (100). At least one reversing assembly (7) is provided upstream of the reversing shaft (6), and the reversing assembly (7) includes a reversing support (71) mounted on the frame (1) and a first roller (72), a second roller ( 73), a reversing gap for the bottom substrate (100) to pass through and having the same height as the die-cutting gap is formed between the first roller (72) and the second roller (73) located above it, the outer circumferential surface of the second roller (73) is in sliding contact with the release film layer (102) on the front side of the substrate layer (101), and a coding assembly (8) is provided between the reversing shaft (6) and the reversing assembly (7), and the coding device (81) of the coding assembly (8) is provided toward the back side of the substrate layer (101) on the bottom substrate (100); The base substrate (100) passes through the reversing gaps of the reversing shaft (6) and the reversing assembly (7) in sequence with the release film layer (102) facing upwards, moves downstream and passes through the die-cutting gaps of several die-cutting units (5) in sequence. A horizontally extending dividing plate (9) is provided directly below the reversing shaft (6). The lower surface of the dividing plate (9) provided between the reversing assembly (7) and the die-cutting unit (5) is provided close to the release film layer (102) of the base substrate (100). The base substrate layer (101) is peeled off by the release film layer (102) below the dividing plate (9) and moves to the receiving roller (4) located above the dividing plate (9) and is wound onto the receiving roller (4).

2. The circular die-cutting device for sheet products according to claim 1, characterized in that: A material receiving assembly (13) is provided on the outer side of one end of the frame (1) away from the reversing assembly (7) and cooperates with the die-cutting unit (5) at the end of the moving direction of the base substrate (100). Four flying cameras (11) corresponding to the four corners of the die-cut product on the base substrate (100) are provided in an area close to the material receiving assembly (13) and in a gap formed between adjacent die-cutting units (5). The four flying cameras (11) are all connected to a signal trigger via a same IO signal transmission line (12).

3. The circular die-cutting device for sheet products according to claim 2, characterized in that: Each of the flying cameras (11) is mounted on the die-cutting base (51) of the die-cutting unit (5) via a support block (111).

4. The circular die-cutting device for sheet products according to claim 2, characterized in that: At least one barcode scanning gun (19) is provided on the frame (1) and is located upstream and downstream of the flying camera (11).

5. The circular die-cutting device for sheet products according to claim 4, characterized in that: The material splicing assembly (13) further comprises: a splicing base (14), a splicing belt (15), and a first sorting belt (16) and a second sorting belt (17) stacked on top of the splicing belt (15) at one end away from the die-cutting unit (5), wherein the end of the splicing belt (15) close to the die-cutting unit (5) is rotatably mounted on the splicing base (14) through a first support frame (151), and the other end of the splicing belt (15) is rotatably mounted on the surface of the splicing base (14) through a first support frame (151). The piston rod of the sorting cylinder (18) is hingedly connected. When the piston rod of the sorting cylinder (18) is in an extended state, the upper surface of the connecting belt (15) and the upper surface of the first sorting belt (16) are located in the same plane. When the piston rod of the sorting cylinder (18) is in a retracted state, the upper surface of the connecting belt (15) with one end tilted downward and the upper surface of the second sorting belt (17) tilted below the first sorting belt (16) are located in the same plane.

6. The circular die-cutting device for sheet products according to claim 5, characterized in that: The first sorting material belt (16) and the second sorting material belt (17) are each provided with a receiving box (23) at one end away from the receiving belt (15).

7. The circular die-cutting device for sheet products according to claim 5 or 6, characterized in that: A first cylinder (20) and a second cylinder (21) are arranged above the material splicing belt (15) and are spaced apart along the material conveying direction thereof. A pressing roller (22) is rotatably mounted at the lower end of each movable portion of the vertically arranged first cylinder (20) and second cylinder (21).

8. The circular die-cutting device for sheet products according to claim 7, characterized in that: The first cylinder (20) and the second cylinder (21) are each mounted on a second support frame (152).

9. The circular die-cutting device for sheet products according to claim 1, characterized in that: One end of the dividing plate (9) facing the die-cutting unit (5) is configured as an arc surface, and the arc surface is in sliding contact with the release film layer (102).

10. The circular die-cutting device for sheet products according to claim 9, characterized in that: The upper surface of the dividing plate (9) facing one end of the die-cutting unit (5) is configured as a beveled surface.

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