Circular knife die-cutting machine

Abstract

The utility model discloses a circular cutter die-cutting machine which 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 receiving rollers used for winding waste materials. The die cutting unit comprises a die cutting base installed on the machine frame, a first die cutting roller and a second die cutting roller, the first die cutting roller and the second die cutting roller are rotatably installed on the die cutting base, a die cutting gap for a bottom base material to penetrate through is formed between the first die cutting roller and the second die cutting roller which are arranged up and down, and the front face of the bottom base material faces upwards. A reversing shaft installed on the machine frame is arranged on the upstream portion of each die cutting unit, at least one reversing assembly is arranged on the upstream portion of each reversing shaft, and the bottom base materials sequentially passing through the reversing gaps of the reversing shafts and the reversing assemblies move downstream and sequentially penetrate through the die cutting gaps of the multiple die cutting units. According to the utility model, continuous and efficient code spraying operation can be realized without being influenced by the drying time of code spraying ink, and the integrity of code spraying patterns and the traceability of products based on code spraying are ensured.

Description

Technical Field

[0001] The utility model relates to a circular knife die cutting machine, belonging to the technical field of die cutting. Background Art

[0002] A multi-station rotary die-cutting machine, also known as a rotary machine, is commonly known as a circular knife machine, hob cutter, or circular die-cutter. It uses a hob to continuously rotate and die-cut, making it one of the most efficient die-cutting machines. Currently, some electronic product components are produced using circular die-cutting, with the parts consisting of release film, molding compound, and film handles. Current processing methods primarily involve cutting the raw material onto the release material to form the molding compound, and then cutting the release material into the finished product. The existing circular die-cutting method for processing electronic product components presents a problem of ineffective product identity traceability. Utility Model Content

[0003] The purpose of the utility model is to provide a circular knife die cutting machine, which can realize continuous and efficient coding operation without being affected by the drying time of the coding ink and ensure the integrity of the coding pattern and the traceability of the product based on the coding.

[0004] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a circular knife die-cutting machine, 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 provided with a plurality of die-cutting units spaced apart along a moving direction of the base substrate, the die-cutting units 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 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 side of the base substrate faces upward;

[0005] A reversing shaft mounted on the frame is provided upstream of the die-cutting unit, and the outer circumferential surface of the reversing shaft arranged above the die-cutting gap is in sliding contact with the back side of the bottom substrate. At least one reversing assembly is provided upstream of the reversing shaft, and the reversing assembly includes 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 it, and the outer circumferential surface of the second roller is in sliding contact with the front side of the bottom substrate. 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 side of the bottom substrate. The bottom substrate that passes through the reversing gap between the reversing shaft and the reversing assembly in turn moves downstream and passes through the die-cutting gaps of several die-cutting units in turn.

[0006] The further improved scheme in the above technical scheme is as follows:

[0007] 1. In the above scheme, the first die-cutting roller and the second die-cutting roller of the die-cutting unit, and the first roller and the second roller of the reversing assembly are connected by mutually meshing gears. The first die-cutting roller or the second die-cutting roller, the first roller or the second roller are each connected to a drive assembly mounted on the die-cutting base and the reversing support at one end opposite to the gear.

[0008] 2. In the above scheme, a third roller is provided above the second roller of the reversing assembly and is rotatably mounted on a reversing support. The third roller and the second roller are connected by mutually meshing gears. The bottom substrate first passes through the reversing gap between the third roller and the second roller and then passes through the reversing gap between the second roller and the first roller.

[0009] 3. In the above solution, the two reversing components are arranged at intervals along the moving direction of the base material, and the coding component is arranged between the two reversing components.

[0010] 4. In the above solution, the inkjet printer is a non-contact inkjet printer.

[0011] 5. In the above solution, a code scanner is installed on the die-cutting base of any one of the die-cutting units for verifying the product code sprayed on the back of the base material by the inkjet printer.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model discloses a circular knife die-cutting machine, wherein the die-cutting unit comprises a die-cutting base mounted on a frame and a first die-cutting roller and a second die-cutting roller which are rotatably mounted on the die-cutting base. A die-cutting gap for a bottom substrate to pass through is formed between the first die-cutting roller and the second die-cutting roller which are arranged up and down, and the front side of the bottom substrate faces upward. A reversing shaft mounted on the frame is provided upstream of the die-cutting unit. The outer circumferential surface of the reversing shaft which is arranged higher than the die-cutting gap is in sliding contact with the back side of the bottom substrate. At least one reversing component is provided upstream of the reversing shaft. The reversing component comprises a reversing support mounted on the frame and a first roller and a second roller which are 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 front side of the bottom substrate. A coding assembly is provided between the reversing shaft and the reversing assembly. The coder of the coding assembly is arranged toward the back side of the bottom substrate. The bottom substrate passing through the reversing gap between the reversing shaft and the reversing assembly in turn moves downstream and passes through the die-cutting gaps of several die-cutting units in turn. The back side of the bottom substrate that has passed the reversal is coded, thereby achieving 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 coding-based products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 This is a schematic structural diagram of a circular knife die-cutting machine of the present invention;

[0015] Attachment Figure 2 This is an enlarged view of the partial structure of the circular knife die-cutting machine of the utility model;

[0016] Attachment Figure 3 This is a schematic structural diagram of the reversing assembly in the circular knife die-cutting machine of the present utility model;

[0017] Attachment Figure 4 This is a schematic structural diagram of the die-cutting unit in the circular knife die-cutting machine of the present invention.

[0018] In the above drawings: 100, base material; 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, barcode scanner; 10, gear. DETAILED DESCRIPTION

[0019] The present invention can be further understood through the following specific embodiments, but they are not intended to limit the present invention.

[0020] Embodiment 1: A circular knife die-cutting machine comprises: a 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 take-up rollers 4 for winding 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 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 die-cutting units 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 of which is rotatably mounted on the die-cutting base 51, a die-cutting gap for the base substrate 100 to pass through is formed between the first die-cutting roller 52 and the second die-cutting roller 53, which are arranged one above the other, and the front side of the base substrate 100 faces upward;

[0021] A reversing shaft 6 mounted on the 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 of the base substrate 100. At least one reversing component 7 is provided upstream of the reversing shaft 6. The reversing component 7 includes a reversing support 71 mounted on the 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 base 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 front of the base substrate 100. A coding component 8 is provided between the reversing shaft 6 and the reversing component 7. The coding device 81 of the coding component 8 is arranged toward the back of the base substrate 100. The base substrate 100 that passes through the reversing gap between the reversing shaft 6 and the reversing component 7 in turn moves downstream and passes through the die-cutting gaps of several die-cutting units 5 in turn.

[0022] 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 first die-cutting roller 52 or the second die-cutting roller 53, the first roller 72 or the second roller 73 are each connected to a drive assembly mounted on the die-cutting base 51 and the reversing support 71 at one end opposite to the gear 10.

[0023] 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 through mutually meshing gears 10. 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.

[0024] Embodiment 2: A circular knife die-cutting machine comprises: a 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 take-up rollers 4 for winding 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 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 die-cutting units 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 of which is rotatably mounted on the die-cutting base 51, a die-cutting gap for the base substrate 100 to pass through is formed between the first die-cutting roller 52 and the second die-cutting roller 53, which are arranged one above the other, and the front side of the base substrate 100 faces upward;

[0025] A reversing shaft 6 mounted on the 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 of the base substrate 100. At least one reversing component 7 is provided upstream of the reversing shaft 6. The reversing component 7 includes a reversing support 71 mounted on the 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 base 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 front of the base substrate 100. A coding component 8 is provided between the reversing shaft 6 and the reversing component 7. The coding device 81 of the coding component 8 is arranged toward the back of the base substrate 100. The base substrate 100 that passes through the reversing gap between the reversing shaft 6 and the reversing component 7 in turn moves downstream and passes through the die-cutting gaps of several die-cutting units 5 in turn.

[0026] The two above-mentioned reversing components 7 are arranged at intervals along the moving direction of the base substrate 100, and the above-mentioned inkjet component 8 is arranged between the two above-mentioned reversing components 7; the above-mentioned inkjet printer 81 is a non-contact inkjet printer; a scanner 9 is installed on the die-cutting base 51 of any one of the above-mentioned die-cutting units 5, which is used to verify the product code sprayed on the back of the base substrate 100 by the inkjet printer 81.

[0027] When the circular die-cutting machine is used, the back of the reversed base substrate is coded, thereby achieving 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 coding-based products.

[0028] Working principle:

[0029] 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;

[0030] 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;

[0031] 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;

[0032] The base material in roll form is usually transparent PET;

[0033] The base substrate 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;

[0034] In the above process, the back of the 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 substrate at regular intervals. After that, the substrate moves through the reversing assembly to the die-cutting unit, and the substrate is restored to the state where the front side faces upward and continues to move to the downstream die-cutting unit for subsequent processes.

[0035] Based on the above arrangement, the bottom substrate originally facing up is reversed twice and the product code is sprayed on the back of the bottom substrate during the process, thereby eliminating the influence of the drying time of the coding ink.

[0036] Non-contact inkjet coding: The inkjet coding equipment is fixed on the rotary die-cutting machine through a customized fixing mechanism, connected to the customized MES system, and the coding content is issued, so that it can be used to code the products on the rotary die-cutting machine. The product code is then checked by the rear scanner. This can prevent problems such as product traceability caused by wrong codes, duplicate codes, and missed codes.

[0037] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with 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 based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A circular die cutting machine 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 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 provided with a plurality of die-cutting units (5) spaced apart along the moving direction of the base substrate (100), characterized in that the die-cutting units (5) include a die-cutting base (51) mounted on the machine 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 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 side of the base substrate (100) faces upward; 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 base material (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) and a second roller (73) each rotatably mounted on the reversing support (71). The first roller (72) and the second roller (73) located above the first roller (72) are in contact with each other. A reversing gap is formed between the reversing shaft (6) and the reversing assembly (7) for the bottom substrate (100) to pass through and is at the same height as the die-cutting gap. The outer circumferential surface of the second roller (73) is in sliding contact with the front surface of the bottom substrate (100). 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 provided toward the back surface of the bottom substrate (100). The bottom substrate (100) that passes through the reversing gap between the reversing shaft (6) and the reversing assembly (7) moves downstream and passes through the die-cutting gaps of several die-cutting units (5) in sequence.

2. The circular die cutting machine according to claim 1, characterized in that: 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) that mesh 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 each connected to a drive assembly mounted on the die-cutting base (51) and the reversing support (71) at one end opposite to the gear (10).

3. The circular die cutting machine according to claim 2, characterized in that: A third roller (74) rotatably mounted on a 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 by a transmission via mutually meshing gears (10). 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).

4. The circular die cutting machine according to claim 1, characterized in that: The two reversing components (7) are arranged at intervals along the moving direction of the base material (100), and the coding component (8) is arranged between the two reversing components (7).

5. The circular die cutting machine according to claim 1, characterized in that: The inkjet printer (81) is a non-contact inkjet printer.

6. The circular die cutting machine according to claim 1, characterized in that: A code scanner (9) is installed on the die-cutting base (51) of any one of the die-cutting units (5) for verifying the product code sprayed on the back of the base material (100) by the code sprayer (81).

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