Circular knife die cutting device for flaky products

Abstract

The circular cutter die cutting device comprises a rack, a first discharging roller used for installing a bottom base material, a plurality of second discharging rollers used for installing material belts and a plurality of material collecting rollers used for winding waste materials, and the bottom base material further comprises a base material layer and a release film layer attached to the front face of the base material layer. A reversing shaft installed on the rack is arranged on the upstream of the die cutting unit, the outer circumferential face of the reversing shaft higher than the die cutting gap is in sliding contact with the back face of the base material layer on the bottom base material, and at least one reversing assembly is arranged on the upstream of the reversing shaft. The bottom base material sequentially passes through the reversing gap between the reversing shaft and the reversing assembly, the release film layer of the bottom base material faces upwards, the bottom base material moves downstream and sequentially penetrates through the die cutting gaps of the multiple die cutting units, and a horizontally-extending material distributing plate is arranged under the reversing shaft. According to the invention, the release film layer can be torn off, the reverse side of the reversed base material layer can be subjected to code spraying before the release film layer is torn off, and the damage to the base material layer in the reversing process can be avoided.

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] At present, some electronic product parts are produced by circular die cutting, and the produced parts are composed of release film, molding material and handle film. The current processing method mainly uses the raw material to cut on the release material to form the molding material, and finally cut the release material to form the finished product.

[0003] The following problems exist in the process of processing electronic product parts by the existing circular die-cutting processing method: 1. The product identity cannot be effectively traced. 2. Multiple CCD lenses cannot be triggered to take pictures at the same time on the circular die-cutting device of sheet products, and the delay is large. The product quality status (size) of the processed products cannot be 100% determined, and it is difficult to trace. When batch defects occur in the processed products, they cannot be improved in the first time, resulting in batch defects and losses. 3. After the processed materials are processed, good and defective products cannot be confirmed or distinguished. After the mixed materials are unloaded, manual inspection and distinction are required, which is inefficient. 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 realize the tearing off of the release film layer on the bottom substrate, but also can spray code on 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 purpose, the technical scheme adopted by the present invention is: a circular knife die-cutting device for sheet products, comprising: a frame, a first unwinding roller for installing a bottom substrate, a plurality of second unwinding rollers for installing a material belt, and a plurality of receiving rollers for winding up waste materials, wherein the first unwinding roller, the second unwinding roller, and the receiving roller are each rotatably mounted on the frame, and the frame is also equipped with a plurality of die-cutting units arranged at intervals along the moving direction of the bottom substrate, the bottom substrate further comprises a substrate layer and a release film layer attached to the front side of the substrate layer, the die-cutting unit comprises a die-cutting base mounted on the frame and a first die-cutting roller and a second die-cutting roller each rotatably mounted on the die-cutting base, a die-cutting gap for the substrate layer of the bottom substrate to pass through is formed between the first die-cutting roller and the second die-cutting roller arranged up and down, and the front side of the substrate layer faces upward; A reversing shaft mounted on the frame is arranged upstream 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 side of the substrate layer on the bottom substrate, at least one reversing assembly is arranged upstream of the reversing shaft, the reversing assembly comprises a reversing support mounted on the frame and a first roller and a second roller 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 it, the outer circumferential surface of the second roller is in sliding contact with the release film layer on the front side of the substrate layer, a coding assembly is arranged between the reversing shaft and the reversing assembly, 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, which passes through the reversing gap of 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 arranged directly below the reversing shaft. 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 release film layer peels off the substrate layer passing under the dividing plate and moves to the receiving roller located above the dividing plate and is wound onto the receiving roller.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, a receiving assembly cooperating with the die-cutting unit at the end of the bottom substrate moving direction is arranged on the outer side of the frame away from the reversing assembly, and 4 flying cameras corresponding to the 4 corners of the die-cut product on the bottom substrate are arranged in the area close to the receiving assembly and in the interval formed between adjacent die-cutting units. The 4 flying cameras are connected to the signal trigger through the same IO signal transmission line.

[0007] 2. In the above solution, each of the flying cameras is installed on the die-cutting base of the die-cutting unit through a supporting block.

[0008] 3. In the above solution, at least one barcode scanner is disposed on the frame and located upstream and downstream of the flying camera.

[0009] 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.

[0010] 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.

[0011] 6. In the above scheme, a first cylinder and a second cylinder are arranged above the material receiving belt and are spaced apart along the material conveying direction thereof, and a pressing roller is rotatably mounted at the lower end of each movable part of the vertically arranged first cylinder and second cylinder.

[0012] 7. In the above solution, the first cylinder and the second cylinder are each installed on a second support frame.

[0013] 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.

[0014] 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.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. A circular knife die-cutting device for sheet products of the present invention, wherein the bottom substrate further includes a substrate layer and a release film layer attached to the front side of the substrate layer, the die-cutting unit includes a die-cutting base installed on a frame and a first die-cutting roller and a second die-cutting roller respectively rotatably installed on the die-cutting base, a die-cutting gap for the substrate layer of the bottom substrate to pass through is formed between the first die-cutting roller and the second die-cutting roller arranged up and down, and the front side of the substrate layer faces upward, a reversing shaft installed on the frame is arranged upstream 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 side of the substrate layer on the bottom substrate, at least one reversing component is arranged upstream of the reversing shaft, the reversing component includes a reversing support installed on the frame and a first roller and a second roller respectively rotatably installed 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 it, the outer circumferential surface of the second roller is in sliding contact with the release film layer on the front side of the substrate layer, and the reversing shaft and the reversing component are in a reversing state. 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 upward 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 through the release film layer under the dividing plate and moves toward the receiving roller above the dividing plate and is wound onto the receiving roller. This can not only realize the removal of the release film layer on the bottom substrate so as to facilitate the subsequent compounding of the remaining material strips onto the substrate layer of the bottom substrate, but also can perform coding on the back side of the substrate layer that has been reversed before the release film layer is torn off, 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.

[0016] 2. The circular knife die-cutting device for sheet products of the present invention has a material receiving assembly that cooperates with the die-cutting unit at the end of the bottom substrate moving direction, and an area near the material receiving assembly and located in the interval formed between adjacent die-cutting units. Four flying cameras corresponding to the four corners of the die-cutting product on the bottom substrate are arranged. 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-cutting product, the four flying cameras can be triggered with zero delay to synchronously take pictures of the moving die-cutting product, thereby avoiding the situation that the photo is distorted and the detection accuracy is reduced due to signal delay, and realizing the accurate measurement of the size of the die-cutting product; further, at least one barcode scanning gun is arranged on the frame and located 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 at 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 material receiving base. 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 and the upper surface of the first sorting 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 tilted downward is located 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 automatic Automatic sorting of good and bad products is achieved based on the measurement results, which improves production efficiency while avoiding damage to products caused by manual work; in addition, a first cylinder and a second cylinder are arranged above the material receiving belt and are spaced apart along the material conveying direction, and a pressing roller is rotatably installed at 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 material receiving belt to ensure the conveying efficiency of the material receiving belt for the product, and can also pre-press the bad products to prevent them from flowing to the sorting belt for good products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural stereoscopic schematic diagram of a circular knife die-cutting device for sheet products of the present invention; Attached Figure 2 It is a structural front view of the circular knife die-cutting device for sheet products of the present invention; Attached Figure 3 for Figure 2 A magnified view of the local structure in Attached Figure 4 It is a structural schematic diagram of a material receiving assembly in a circular knife die-cutting device for sheet products of the present invention; Attached Figure 5 It is a structural schematic diagram of a reversing assembly in a circular knife die-cutting device for sheet products of the present invention; Attached Figure 6 It is a structural schematic diagram of a die-cutting unit in a circular knife die-cutting device for sheet products of the present invention; Attached Figure 7 It 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 to the wire.

[0018] 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, receiving 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

[0019] The present invention can be further understood by the specific examples given below, but they are not intended to limit the present invention.

[0020] Embodiment 1: A circular knife die-cutting device for sheet products, comprising: a frame 1, a first feeding roller 2 for mounting a bottom 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 materials, 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 bottom substrate 100, the bottom substrate 100 further comprising a substrate layer 101 and a release film layer 102 attached to the front side of the substrate 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 for the substrate layer 101 of the bottom substrate 100 to pass through is formed between the first die-cutting roller 52 and the second die-cutting roller 53 arranged up and down, and the front side of the substrate layer 101 faces upward; A reversing shaft 6 mounted on the frame 1 is arranged upstream of the die-cutting unit 5, and the outer circumferential surface of the reversing shaft 6 arranged higher than the die-cutting gap is in sliding contact with the back side of the substrate layer 101 on the bottom substrate 100. At least one reversing component 7 is arranged upstream of the reversing shaft 6, and the reversing component 7 includes a reversing support 71 mounted on the frame 1 and a first roller 72 and a second roller 73 rotatably mounted on the reversing support 71, and 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, and 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 component 8 is arranged between the reversing shaft 6 and the reversing component 7, and the coding device 81 of the coding component 8 is arranged toward the back side of the substrate layer 101 on the bottom substrate 100; The base substrate 100, which passes through the reversing gaps of the reversing shaft 6 and the reversing assembly 7 in sequence and 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 arranged directly below the reversing shaft 6. The lower surface of the dividing plate 9 arranged between the reversing assembly 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 that passes under the dividing plate 9 peels off the base substrate layer 101 and moves toward the receiving roller 4 located above the dividing plate 9 and is wound onto the receiving roller 4.

[0021] A receiving assembly 13 cooperating with the die-cutting unit 5 at the end of the bottom substrate 100 in the moving direction is arranged outside the frame 1 away from the reversing assembly 7, and four flying cameras 11 corresponding to the four corners of the die-cut product on the bottom substrate 100 are arranged in the area near the receiving assembly 13 and in the interval formed between adjacent die-cutting units 5. The four flying cameras 11 are connected to the signal trigger through the same IO signal transmission line 12; Each of the above-mentioned flying cameras 11 is mounted on the die-cutting base 51 of the die-cutting unit 5 through a supporting block 111; The end of the material 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; the upper surface of the end of the material dividing plate 9 facing the die-cutting unit 5 is configured as a chamfered surface; 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 gears 10 meshing with each other. The first die-cutting roller 52 or the second die-cutting roller 53, the first roller 72 or the second roller 73 are connected to a driving assembly installed on the die-cutting base 51 and the reversing support 71 at one end opposite to the gear 10. A third roller 74 rotatably mounted on the reversing support 71 is disposed above the second roller 73 of the reversing assembly 7. The third roller 74 and the second roller 73 are connected to each other through a gear 10 that meshes with each other. The bottom 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. The two reversing assemblies 7 are arranged at intervals along the moving direction of the base substrate 100, the inkjet assembly 8 is arranged between the two reversing assemblies 7, the dividing plate 9 is installed on the reversing support 71 of the reversing assembly 7 close to the die-cutting unit 5; the flying camera 11 is a CCD camera equipped with a light source; 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 to check the product code sprayed on the back of the substrate layer 101 by the inkjet printer 81 .

[0022] Embodiment 2: A circular knife die-cutting device for sheet products, comprising: a frame 1, a first feeding roller 2 for mounting a bottom 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 materials, 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 bottom substrate 100, characterized in that: the bottom substrate 100 further comprises a substrate layer 101 and a release film layer 102 attached to the front side of the substrate 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 for the substrate layer 101 of the bottom substrate 100 to pass through is formed between the first die-cutting roller 52 and the second die-cutting roller 53 arranged up and down, and the front side of the substrate layer 101 faces upward; A reversing shaft 6 mounted on the frame 1 is arranged upstream of the die-cutting unit 5, and the outer circumferential surface of the reversing shaft 6 arranged higher than the die-cutting gap is in sliding contact with the back side of the substrate layer 101 on the bottom substrate 100. At least one reversing component 7 is arranged upstream of the reversing shaft 6, and the reversing component 7 includes a reversing support 71 mounted on the frame 1 and a first roller 72 and a second roller 73 rotatably mounted on the reversing support 71, and 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, and 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 component 8 is arranged between the reversing shaft 6 and the reversing component 7, and the coding device 81 of the coding component 8 is arranged toward the back side of the substrate layer 101 on the bottom substrate 100; The base substrate 100, which passes through the reversing gaps of the reversing shaft 6 and the reversing assembly 7 in sequence and 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 arranged directly below the reversing shaft 6. The lower surface of the dividing plate 9 arranged between the reversing assembly 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 that passes under the dividing plate 9 peels off the base substrate layer 101 and moves toward the receiving roller 4 located above the dividing plate 9 and is wound onto the receiving roller 4.

[0023] At least one barcode scanning gun 19 is disposed on the frame 1 and located upstream and downstream of the flying camera 11; The material receiving assembly 13 further comprises: a material receiving base 14, a material receiving belt 15, and a first sorting material belt 16 and a second sorting material belt 17 which are stacked up and down on one end of the material receiving belt 15 away from the die-cutting unit 5. The end of the material receiving belt 15 close to the die-cutting unit 5 is rotatably mounted on the material receiving base 14 through a first support frame 151. The other end of the material receiving belt 15 is hingedly connected to a piston rod of a sorting cylinder 18 which is obliquely mounted on the upper surface of the material receiving base 14. When the piston rod of the sorting cylinder 18 is in an extended state, the upper surface of the material receiving belt 15 and the upper surface of the first sorting material 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 material receiving belt 15 with one end tilted downward and the upper surface of the second sorting material belt 17 which is obliquely arranged below the first sorting material belt 16 are located in the same plane. 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; A first cylinder 20 and a second cylinder 21 are arranged above the above-mentioned material receiving belt 15 and are spaced apart along its material conveying direction. A pressing roller 22 is rotatably installed at the lower end of each movable part of the vertically arranged first cylinder 20 and second cylinder 21; each of the first cylinder 20 and second cylinder 21 is installed on a second support frame 152.

[0024] When the circular knife die-cutting device for sheet products is used, it can not only realize the tearing off of the release film layer on the bottom substrate so as to facilitate the subsequent lamination of the remaining material tapes to the substrate layer of the bottom substrate, but also can perform coding on the back side of the substrate layer after the reversal 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 and ensuring the integrity of the coding pattern and the traceability of the product based on the coding, and can also avoid damage to the substrate layer during the reversal process; In addition, while detecting the length and width of the die-cut products, the system can trigger four flying cameras to take photos of the moving die-cut products simultaneously without delay, thus avoiding photo distortion and reduced detection accuracy due to signal delay, and achieving accurate measurement of the die-cut product dimensions. Furthermore, it is possible to bind the measurement data to each product one-to-one through a barcode scanner and the product code on the base material, and to automatically sort good and bad products based on the measurement results, thereby improving production efficiency while avoiding damage to products caused by manual operations; in addition, it is possible to increase the friction between the product and the splicing belt to ensure the efficiency of the splicing belt in transporting the product, and to pre-press the bad products to prevent them from flowing to the sorting belt of good products.

[0025] Working principle: When in use, the first unwinding roller is used to unwind the base substrate, the plurality of second unwinding rollers are used to unwind other material strips that need to be laminated to the base substrate, and the plurality of take-up rollers are used to take up the base substrate, the release film on the material strip, and the waste material cut by the die-cutting unit; The first die-cutting roller and the second die-cutting roller of the die-cutting unit may be rollers with smooth surfaces, used to laminate the material strip onto the base substrate by extrusion, or may be rollers with die-cutting blades, used to roll-cut the material strip and the base substrate passing through the die-cutting gap formed therebetween as required; According to the specific requirements of the product, the material belt and the die-cutting unit are specifically set, which belongs to the scope of the prior art and will not be described in detail here; The base material layer of the roll-shaped base material is generally transparent PET, and the incoming material is attached with a release film; The base substrate with the release film layer is mounted on the first unwinding roller, and then one end of the base substrate is pulled out and passed through the reversing shaft and the reversing assembly in sequence, and then passed through the multiple die-cutting units downstream in sequence; In the above process, the back side of the bottom substrate moved by the reversing shaft to the reversing assembly faces the inkjet printer, and the product code is printed on the back side of the bottom substrate by the inkjet printer at a certain time interval. After that, the bottom substrate moves to the die-cutting unit through the reversing assembly, and the bottom substrate is restored to a state where the front side faces upward. Then, the release film layer is peeled off from the front side of the substrate layer and wound onto a receiving roller, and the release film layer is rolled up by the receiving roller, so that the bottom 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. Based on the above arrangement, the original front-facing bottom substrate is reversed twice before peeling off the release film layer and the product code is sprayed on the back of the bottom substrate during this process. This can avoid damage to the front adhesive layer of the substrate layer due to the reverse rotation and eliminate the influence of the drying time of the coding ink.

[0026] After the lamination and cutting of multiple layers of material strips, before the product is formed but before it is cut, four flying cameras are used to take pictures and measure the four corners of the product to obtain the length and width of the product, and the measurement data is bound to each product through the product code. In this process, the four flying cameras are connected to the signal trigger through the same IO signal transmission line, which can trigger the four flying cameras to take pictures of the moving die-cut products synchronously with zero delay, avoiding the situation where the photo is distorted and the detection accuracy is reduced due to signal delay, and realizing the accurate measurement of the size of the die-cut products; After that, the products are cut, and the barcode scanner downstream of the flying camera determines the products passing under it, so as to facilitate the subsequent sorting of the products; The cut products are moved to the splicing belt of the splicing component in sequence; When the product on the receiving belt is good, the piston rod of the sorting cylinder is placed in an extended state. At this time, the receiving belt is connected to the first sorting belt, and the good products are transmitted to the first sorting belt through the receiving belt and finally fall into the receiving box downstream of the first sorting belt. In the above process, the second cylinder can be switched from a contracted state to an extended state, and the friction between the good products and the receiving belt is increased by the pressing roller wheel moving with it to ensure the effectiveness and efficiency of the receiving belt transportation and prevent the good products from slipping on the receiving belt. When the product on the receiving belt is defective, the piston rod of the sorting cylinder is placed in a retracted state. At this time, the receiving belt is connected to the second sorting belt. The defective products are transmitted to the second sorting belt through the receiving belt and finally fall into the receiving 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, and the friction between the defective products and the receiving belt is increased by the pressure roller that moves with it to ensure the effectiveness and efficiency of the receiving belt transportation, avoid the defective products from slipping on the receiving belt, and improve the stability of the defective products on it during the downward movement of one end of the receiving belt.

[0027] Non-contact inkjet coding: The inkjet coding equipment is fixed on the circular knife die-cutting device of the sheet product through a customized fixing mechanism, connected to the customized MES system, and the coding content is issued to enable it to inkjet the product on the circular knife die-cutting device of the sheet product. The product code is then checked by the rear scanner gun to prevent problems such as product traceability caused by wrong code, duplicate code, and missed code.

[0028] Flying CCD: By designing a special fixing mechanism for the circular knife die-cutting device of sheet products, 4 CCDs are fixed on the circular knife die-cutting device of sheet products, and then connected to the die-cutting machine signal trigger through the modified 4-in-1 IO signal line, so that 4 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.

[0029] Sorting automation: The purpose is to solve the abnormal processing and differentiation during manual scanning and detection. It is suitable for scanning and automatic material collection auxiliary equipment in most industries. It solves the problem of excessive contact with products during manual scanning and reduces product deformation and scratches caused by insufficient manual scanning techniques. Through modules and fixed barcode scanners, scanning, loading, differentiation and inspection are realized, which greatly improves the yield rate and CT. Combined with the barcode scanner to scan the product QR code check MES system, MES sends instructions to the sorting automation, and the sorting automation distinguishes materials (OK / NG).

[0030] Action introduction: 1. The product flows to the lifting mechanism carrier plate and is positioned; 2. The barcode scanner is used to scan the barcode; 3. After scanning the barcode, the lifting mechanism of the NG product moves down and flows to the NG material box; 4. After scanning the barcode, the product flows to the OK material box; 5. After the material box is full, the material box module is moved to replace the material box.

[0031] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope 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 belt, and a plurality of receiving rollers (4) for winding up waste materials, wherein the first unwinding roller (2), the second unwinding roller (3), and the receiving 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) arranged at intervals 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) respectively 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 one above the other for the substrate layer (101) of the bottom substrate (100) to pass through, and the front side of the substrate layer (101) faces upward; A reversing shaft (6) mounted on the frame (1) is arranged upstream of the die-cutting unit (5); 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 arranged upstream of the reversing shaft (6); the reversing assembly (7) comprises a reversing support (71) mounted on the frame (1) and a first roller (72), a second roller (73) and a second roller (74) each rotatably mounted on the reversing support (71). 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 the first roller (72), 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 component (8) is arranged between the reversing shaft (6) and the reversing component (7), and the coding device (81) of the coding component (8) is arranged 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 upward, moves downstream and passes through the die-cutting gaps of a plurality of die-cutting units (5) in sequence. A horizontally extending dividing plate (9) is arranged directly below the reversing shaft (6). The lower surface of the dividing plate (9) arranged between the reversing assembly (7) and the die-cutting unit (5) is arranged 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) passing below the dividing plate (9), moves to the receiving roller (4) located above the dividing plate (9), and is wound onto the receiving roller (4).

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

3. The circular knife die cutting device for sheet products according to claim 2, characterized in that: Each of the flying cameras (11) is mounted on a 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 disposed on the frame (1) and is located upstream and downstream of the flying camera (11).

5. The circular knife die cutting device for sheet products according to claim 4, characterized in that: The material receiving assembly (13) further comprises: a material receiving base (14), a material receiving belt (15), and a first sorting belt (16) and a second sorting belt (17) stacked up and down on one end of the material receiving belt (15) away from the die-cutting unit (5), wherein one end of the material receiving belt (15) close to the die-cutting unit (5) is rotatably mounted on the material receiving base (14) through a first support frame (151), and the other end of the material receiving belt (15) is rotatably mounted on a surface of the material receiving base (14) by a first support frame (151). The piston rod of the sorting cylinder (18) is hingedly connected to the upper surface of the receiving belt (15). When the piston rod of the sorting cylinder (18) is in an extended state, the upper surface of the receiving 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 receiving 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: A material receiving box (23) is provided at one end of each of the first sorting material belt (16) and the second sorting material belt (17) which is away from the material receiving belt (15).

7. The circular knife 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 receiving 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 knife 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 knife 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 arranged as an arc surface, and the arc surface is in sliding contact with the release film layer (102).

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

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