Folding equipment and method for manufacturing double-sided two-dimensional code label

Abstract

The invention relates to folding equipment and method for manufacturing a double-sided two-dimensional code label, and relates to the technical field of label folding, the folding equipment comprises a base, a pre-lifting block, a straightening block and a flattening block, the base is provided with a moving assembly for driving label paper to move, the pre-lifting block, the straightening block and the flattening block are all arranged on the base, the pre-lifting block is provided with a pre-lifting auxiliary block, and the pre-lifting auxiliary block is provided with a pre-lifting auxiliary block. The pre-lifting auxiliary block is provided with a pre-lifting inclined face used for abutting against a label, the straightening block is further provided with a straightening auxiliary block, the straightening auxiliary block is provided with a straightening vertical face used for abutting against the label, the flattening block is provided with a flattening auxiliary block, and the flattening auxiliary block is provided with a flattening inclined face used for abutting against the label. The method has the effect of improving the label folding efficiency.

Description

Technical Field

[0001] This invention relates to the field of label folding technology, and in particular to a folding device and method for producing double-sided QR code labels. Background Technology

[0002] In the existing manufacturing industry, most products, such as 3C products, need to be labeled with QR codes for easy recording and traceability. Each product is identified and recorded to facilitate management and traceability during product production, and to identify the problem point after a product problem occurs.

[0003] Some products need to be flipped during production and material collection, so double-sided QR codes need to be affixed to the products to facilitate scanning and recording from different directions on both sides of the product at the same time. For this purpose, two QR codes need to be printed on a label and folded to form a double-sided QR code. In the label preparation process, the labels need to be folded one by one. Common labels are mostly composed of multiple labels connected together to form a long strip of label paper. In the current technology, the label paper is mostly folded manually. However, in large-scale production, manual folding is labor-intensive and has low efficiency. Summary of the Invention

[0004] To improve label folding efficiency, this application provides a folding device and method for producing double-sided QR code labels.

[0005] The folding device and method for producing double-sided QR code labels provided in this application adopt the following technical solution: A folding device for producing double-sided QR code labels includes a base, a pre-lifting block, a straightening block, and a flattening block. The base is equipped with a moving component that drives the label paper to move. The pre-lifting block, straightening block, and flattening block are all disposed on the base. The pre-lifting block is provided with a pre-lifting auxiliary block, which has a pre-lifting inclined surface for abutting the label. The straightening block is also provided with a straightening auxiliary block, which has a straightening vertical surface for abutting the label. The flattening block is provided with a flattening auxiliary block, which has a flattening inclined surface for abutting the label.

[0006] By adopting the above technical solution, the long strip of label paper passes through the pre-lifting block, the straightening block and the flattening block in sequence. Then, the label is moved by the moving component, and the label paper is pressed against the pre-lifting inclined surface, the straightening vertical surface and the flattening inclined surface in sequence, so that the label paper is folded into obtuse angle, right angle and acute angle in sequence, thus completing the folding of the label smoothly and continuously. The operation is simple and convenient.

[0007] Preferably, the moving component includes a moving motor and a moving roller, the moving roller being rotatably mounted on the base, the moving motor being mounted on the base, the moving motor shaft being connected to the moving roller, and the moving roller being used to press against and push the label to move.

[0008] By adopting the above technical solution, the moving motor is started to drive the moving roller to rotate, thereby pushing the label paper forward through the squeezing of the moving roller and the base. The operation is simple and convenient, and easy to use.

[0009] Preferably, the base is rotatably provided with a rotating roller, and a first transmission component is provided between the rotating roller and the moving roller. The first transmission component is used to drive the rotating roller to rotate according to the rotation of the moving roller, and the rotating roller is used to pass around the bonding paper.

[0010] By adopting the above technical solution, the oil-based paper is torn off when the label is folded, exposing the adhesive surface of the label, which facilitates the adhesion of the label after folding and improves the stability of folding. The first transmission component rotates the electric rotating roller according to the rotation of the moving roller, thereby driving the adhesive paper to move and attach the adhesive paper to the folded label, so that the remaining exposed adhesive surface on the label will not be affected, making it convenient to peel off the adhesive paper and stick the label for use later.

[0011] Preferably, the first transmission assembly includes a first transmission gear and a second transmission gear, the first transmission gear being disposed on a moving roller and the second transmission gear being disposed on a rotating roller, wherein the first transmission gear meshes with the second transmission gear.

[0012] By adopting the above technical solution, when the moving roller rotates, the first transmission gear follows and rotates, and drives the second transmission gear to rotate through meshing, thereby driving the rotating roller to rotate, realizing transmission. The operation is simple and convenient, and easy to use.

[0013] Preferably, the flattening block is provided with a flattening groove, the flattening auxiliary block is rotatably disposed in the flattening groove, the flattening block is provided with a driving groove communicating with the flattening groove, a driving plate is slidably disposed in the driving groove, a first driving rod is rotatably disposed on the driving plate, the first driving rod is rotatably connected to the flattening auxiliary block, the flattening block is provided with an auxiliary groove communicating with the driving groove, a driving disk is rotatably disposed in the auxiliary groove, a second driving rod is disposed in the driving groove, one end of the second driving rod is rotatably connected to the driving disk, and the other end of the second driving rod is rotatably connected to the driving plate, the rotating roller is provided with a first auxiliary sprocket, the flattening block is rotatably disposed with a second auxiliary sprocket, an auxiliary chain is meshed on the first auxiliary sprocket and the second auxiliary sprocket, and a second transmission assembly is disposed between the driving disk and the second auxiliary sprocket, the second transmission assembly being used to drive the driving disk to rotate according to the rotation of the second auxiliary sprocket.

[0014] By adopting the above technical solution, when the rotating roller rotates, it drives the first auxiliary sprocket to rotate, and through the auxiliary chain, it drives the second auxiliary sprocket to rotate, and through the second transmission component, it drives the drive plate to rotate, thereby driving the drive plate to slide back and forth through the second drive rod, and through the first drive rod, it drives the flattening auxiliary block to rotate back and forth, thereby limiting and squeezing the moving label paper while performing dynamic squeezing and folding, thus improving the stability of the label paper flattening and folding.

[0015] Preferably, the second transmission assembly includes a first transmission bevel gear and a second transmission bevel gear, both of which are rotatably disposed in an auxiliary groove and mesh with each other. The first transmission bevel gear is connected to a second auxiliary sprocket, and the second transmission bevel gear is connected to a drive disc.

[0016] By adopting the above technical solution, when the second auxiliary sprocket rotates, it mobilizes the first transmission bevel gear to rotate, and through meshing, it drives the second transmission bevel gear to rotate, thereby driving the drive disc to rotate, so as to achieve transmission. The operation is simple and convenient, and easy to use.

[0017] Preferably, the base is rotatably provided with an installation rod, the installation rod is provided with an installation auxiliary rod, the pre-lifting block, the straightening block and the flattening block are all provided with a first installation groove for the installation rod to be inserted, and the pre-lifting block, the straightening block and the flattening block are all provided with a second installation groove that communicates with the first installation groove, the second installation groove for the installation auxiliary rod to be inserted.

[0018] By adopting the above technical solution, when installing the pre-lifting block, straightening block, and flattening block, the pre-lifting block, straightening block, and flattening block are placed on the base and the mounting rod is inserted into the first mounting groove. Then, the mounting rod is rotated so that the mounting auxiliary rod is inserted into the second mounting groove, thereby locking the pre-lifting block, straightening block, and flattening block and completing the installation. The operation is simple and convenient, and it is convenient to disassemble the pre-lifting block, straightening block, and flattening block for maintenance and replacement.

[0019] Preferably, the mounting rod is provided with a mounting gear, and the pre-lifting block, straightening block and flattening block are all provided with a third mounting groove that communicates with the first mounting groove. A mounting rack that can mesh with the mounting gear is slidably disposed in the third mounting groove, and the flattening block is provided with a pushing component, which is used to push the mounting rack to slide.

[0020] By adopting the above technical solution, the component pushes the mounting rack to slide, which in turn drives the mounting gear to rotate, thereby driving the mounting rod to rotate and allowing the mounting auxiliary rod to be inserted into the second mounting slot, thus improving the convenience of use.

[0021] Preferably, the pushing assembly includes a pushing block and a pushing cylinder. The pushing block is slidably connected to the pre-lifting block, the straightening block, and the flattening block. The pushing cylinder is disposed on the flattening block. The pushing block is connected to each mounting rack. The piston rod of the pushing cylinder is connected to the pushing block.

[0022] By adopting the above technical solution, the push cylinder is activated, which drives the push block to slide, thereby driving each mounting rack to move synchronously. The operation is simple and convenient, and it is easy to use. It drives each mounting rack to move synchronously, completing the installation and fixing of the pre-lifting block, straightening block and flattening block in one go, improving the convenience of assembling and disassembling the pre-lifting block, straightening block and flattening block.

[0023] A folding method for producing double-sided QR code labels includes the following steps: Step 1: Pass the label paper through the pre-lifting block, straightening block and flattening block in sequence, so that the pre-lifting inclined surface, straightening vertical surface and flattening inclined surface abut against the label paper in sequence, and the label paper passes between the moving roller and the base; Step 2: Start the moving motor to drive the moving roller to rotate. The label is moved by the squeezing of the moving roller. The label paper is pressed against the pre-lifting inclined surface, the straightening vertical surface and the flattening inclined surface in sequence, so that the label paper is folded into obtuse angle, right angle and acute angle in sequence, and finally squeezed by the moving roller to complete the folding.

[0024] By adopting the above technical solution, when folding labels, only a certain operation is required when the label is loaded into the device. Subsequently, the label is moved by the moving component, and the label is automatically folded during the movement of the label paper. No additional operation is required. The label folding is continuous and does not require manual operation, which reduces labor intensity and increases the speed of label folding, thereby greatly improving the efficiency of label folding.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a base, pre-lifting block, straightening block, flattening block, moving component, pre-lifting auxiliary block, pre-lifting inclined surface, straightening auxiliary block, straightening vertical surface, flattening auxiliary block and flattening inclined surface, the long strip of label paper is passed through the pre-lifting block, straightening block and flattening block on the base in sequence. The moving component drives the label paper to move. During the movement, the pre-lifting inclined surface of the pre-lifting block, the straightening vertical surface of the straightening auxiliary block and the flattening inclined surface of the flattening auxiliary block abut against the label paper in sequence, so that the label paper is folded in sequence. The folding angle decreases from obtuse angle, right angle to acute angle in sequence, thus completing the folding. By moving the moving component, the label paper is folded continuously without interruption, improving the efficiency of label folding. 2. By setting up a moving roller, a moving motor, a rotating roller, a first transmission gear, and a second transmission gear, the moving motor drives the moving roller to rotate after starting, and drives the second transmission gear to rotate through the first transmission gear, thereby driving the rotating roller to rotate. The moving roller works in conjunction with the label paper on the base to move the label paper forward. The operation is simple and convenient, and easy to use. 3. By setting up a flattening groove, a drive groove, a drive plate, a first drive rod, a second drive rod, a drive disc, a first auxiliary sprocket, a second auxiliary sprocket, an auxiliary chain, an auxiliary groove, a first transmission bevel gear, and a second transmission bevel gear, the moving roller rotates, driving the first auxiliary sprocket to rotate, and then driving the second auxiliary sprocket to rotate through the auxiliary chain. At this time, the drive disc is driven to rotate through the transmission of the first and second transmission bevel gears in the auxiliary groove. The drive plate moves back and forth in the drive groove through the drive of the second drive rod, thereby driving the flattening auxiliary block in the flattening groove to rotate through the first drive rod, thereby squeezing the moving label paper. After the label paper is squeezed into an acute angle, it is further squeezed, thereby improving the flattening effect of the label paper and improving the stability of the folding. Attached Figure Description

[0026] Figure 1 This is an overall schematic diagram of a folding device for producing double-sided QR code labels provided in an embodiment of this application.

[0027] Figure 2 It is a cross-sectional view used to illustrate the structure of the first transmission component.

[0028] Figure 3 It is a cross-sectional view used to show the internal structure of the pre-lifting block and the straightening block.

[0029] Figure 4 It is a cross-sectional view used to show the internal structure of the flattened block. Explanation of reference numerals in the attached drawings: 1. Base; 11. Limiting rod; 111. Cutting blade; 12. Limiting plate; 13. Rewinding structure; 14. Mounting rod; 141. Mounting auxiliary rod; 142. Mounting gear; 2. Pre-lifting block; 21. Pre-lifting groove; 22. Pre-lifting auxiliary block; 23. Pre-lifting inclined surface; 3. Straightening block; 31. Straightening groove; 32. Straightening auxiliary block; 33. Straightening vertical surface; 4. Flattening block; 41. Flattening groove; 42. Flattening auxiliary block; 43. Flattening inclined surface; 44. Drive groove; 45. Auxiliary groove; 46. First mounting groove; 461. Second mounting groove; 46 3. Third mounting slot; 464. Mounting rack; 5. Moving assembly; 51. Moving roller; 52. Moving motor; 53. Rotating roller; 531. First auxiliary sprocket; 532. Second auxiliary sprocket; 533. Auxiliary chain; 6. First transmission assembly; 61. First transmission gear; 62. Second transmission gear; 7. Second transmission assembly; 71. First transmission bevel gear; 72. Second transmission bevel gear; 8. Pushing assembly; 81. Pushing block; 82. Pushing cylinder; 9. Drive disc; 91. Drive plate; 92. First drive rod; 93. Second drive rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] This application discloses a folding device for producing double-sided QR code labels. (See also...) Figures 1 to 3 It includes a base 1, a long strip-shaped pre-lifting block 2, a straightening block 3, and a flattening block 4. The base 1 is equipped with a moving component 5 for moving the label paper. The pre-lifting block 2, the straightening block 3, and the flattening block 4 are all mounted on the base 1. The pre-lifting block 2 has a pre-lifting groove 21 that extends through and connects to the bottom wall for the label to pass through. Several triangular pre-lifting auxiliary blocks 22 are fixedly mounted on the inner wall of the pre-lifting groove 21, and each pre-lifting auxiliary block 22 has a pre-lifting inclined surface 23 on one side. The flattening block 4 has a flattening groove 41 that extends through and connects to the bottom wall for the label to pass through. Several triangular flattening auxiliary blocks 42 are mounted on the top wall of the flattening groove 41, and each flattening auxiliary block 42 has a flattening inclined surface 43 on one side. The flattening inclined surface 43 and the pre-lifting inclined surface 23 have opposite inclination directions. A straightening block 3 is positioned between the pre-lifting block 2 and the flattening block 4. A straightening groove 31, communicating with the bottom wall, is provided through the side wall of the straightening block 3 for the label to pass through. Several triangular straightening auxiliary blocks 32 are fixedly installed within the straightening groove 31. Each straightening auxiliary block 32 has a straightening vertical surface 33 on one side, arranged vertically. The lowest points of the pre-lifting auxiliary block 22, the straightening auxiliary block 32, and the flattening auxiliary block 42 are aligned. The label paper, in a long strip shape, passes sequentially through the pre-lifting groove 21, the straightening groove 31, and the flattening groove 41 under the movement of the moving component 5, thus gradually folding the label paper and efficiently completing the label folding process.

[0032] For ease of use, please refer to Figure 1 and Figure 2 The moving component 5 includes a moving motor 52 and a moving roller 51. The moving roller 51 is rotatably mounted on the base 1 via a bracket, and the moving motor 52 is fixedly mounted on the base 1, with its rotating shaft coaxially and fixedly connected to the moving roller 51. A limiting rod 11 is mounted on the surface of the base 1 via a bracket. The limiting rod 11 and the moving roller 51 are positioned on both sides of the straightening block 3, with the limiting rod 11 positioned on the side of the straightening block 3 away from the flattening block 4. A limiting plate 12 is fixedly mounted on the side of the limiting rod 11 away from the straightening block 3, thereby limiting the movement of the label paper on both sides. A cutting blade 111 is mounted on the bottom wall of the limiting rod 11 to cut the moving label paper. A winding structure 13, consisting of a roller and a motor, is mounted above the limiting rod 11 on the base 1 to retract the oily paper torn off during movement, exposing the adhesive side of the label paper. Starting the moving motor 52 drives the moving roller 51 to rotate, which squeezes and pushes the label paper forward. The operation is simple, convenient, and easy to use.

[0033] To reduce the likelihood of labels adhering to the moving roller 51, refer to Figure 1 and Figure 2 A rotating roller 53 is rotatably mounted on the surface of the base 1 via a bracket. The rotating roller 53 is positioned between the flattening block 4 and the moving roller 51. A first transmission assembly 6 is provided between the rotating roller 53 and the moving roller 51. The first transmission assembly 6 is used to drive the rotating roller 53 to rotate according to the rotation of the moving roller 51. The first transmission assembly 6 includes a first transmission gear 61 and a second transmission gear 62. The first transmission gear 61 is fixedly mounted on the moving roller 51, and the second transmission gear 62 is fixedly mounted on the rotating roller 53. The first transmission gear 61 meshes with the second transmission gear 62. The rotating roller 53 is used to bypass the adhesive paper so that when the moving roller 51 presses the folded label, the adhesive paper covers the label. In other embodiments, the rotating roller 53 is provided with two ring blocks to limit the bypassed adhesive paper. This reduces the possibility that the label will adhere to the moving roller 51 when it presses the label adhesive surface. In another embodiment, a pressure plate may be provided on the surface of the base 1 between the flattening block 4 and the rotating roller 53, further flattening the folded label through the gap between the pressure plate and the base 1.

[0034] The label paper on the base 1 is long and narrow, with multiple labels arranged sequentially on it. Adjacent rows of labels are grouped together. Multiple groups of labels are placed on the label paper, with a gap between each group. During folding, the cutting blade 111 first cuts through the gap between the label groups. The oil-based paper is then peeled off by the winding structure 13. The label paper is then passed through the pre-lifting block 2, straightening block 3, and flattening block 4, and then attached to the folded label paper by the rotating roller 53, covering the adhesive surface. The pressing of the moving roller 51 ensures that the adhesive surfaces of the two labels in each group are adhered together, while leaving an adhesive surface in the gap for easy gluing and fixing to the equipment. The adhesive paper can be removed for subsequent use.

[0035] For ease of installation and disassembly, please refer to... Figure 1 and Figure 4 The base 1 has multiple cylindrical mounting rods 14 rotatably mounted on its surface. The surfaces of the pre-lifting block 2, straightening block 3, and flattening block 4 each have two first mounting grooves 46 that penetrate the sidewalls of the pre-lifting block 2, straightening block 3, or flattening block 4. The mounting rods 14 can be inserted into and rotate within the first mounting grooves 46. A mounting auxiliary rod 141 is vertically fixed to the mounting rod 14, and a second mounting groove 461 is vertically provided on the inner wall of the first mounting groove 46 for the mounting auxiliary rod 141 to be inserted into. Referring to the figure, a mounting gear 142 is rotatably sleeved on the mounting rod 14, and the mounting gear 142 does not extend beyond the sidewall of the mounting rod 14. The pre-lifting block 2, straightening block 3, and flattening block 4 each have a third mounting groove 463 on their side walls that communicates with the first mounting groove 46. A mounting rack 464 is slidably mounted within the third mounting groove 463, engaging the mounting gear 142 and extending beyond the third mounting groove 463. The flattening block 4 has a pushing component 8, which pushes the mounting rack 464 to slide. The mounting rod 14 is inserted into the first mounting groove 46. The pushing component 8, with the help of the mounting rack 464, drives the mounting gear 142 to rotate, thereby rotating the mounting rod 14 and causing the mounting auxiliary rod 141 to insert into the second mounting groove 461, completing the installation. The operation is simple and convenient, facilitating installation and disassembly.

[0036] For ease of use, please refer to Figure 1 and Figure 4 The pushing assembly 8 includes a pushing block 81 and a pushing cylinder 82. Two sets of elongated pushing blocks 81 are provided and are slidably connected to the top walls of the pre-lifting block 2, the straightening block 3, and the flattening block 4. The pushing cylinder 82 is fixedly mounted on the top wall of the flattening block 4, and a connecting rod is provided on the piston rod of the pushing cylinder 82 to be fixedly connected to both pushing blocks 81. Multiple connecting blocks are provided on the bottom wall of the pushing block 81 to be fixedly connected to each mounting rack 464. Activating the pushing cylinder 82 moves the pushing block 81, thereby causing each mounting rack 464 to move synchronously, improving ease of use.

[0037] To improve the folding effect, refer to... Figure 1 and Figure 4The flattening auxiliary block 42 is rotatably mounted in the flattening groove 41 via a rotating shaft. A driving groove 44 is provided on the top wall of the flattening groove 41, and a driving plate 91 is slidably mounted within the driving groove 44. Multiple first driving rods 92 are rotatably mounted on the driving plate 91 via a rotating shaft. The ends of the first driving rods 92 furthest from the driving plate 91 are rotatably connected to the flattening auxiliary block 42 via a rotating shaft. The flattening block 42 is provided with an auxiliary groove 45 communicating with the driving groove 44. A driving disk 9 is rotatably mounted within the auxiliary groove 45, and a second driving rod 93 is rotatably mounted on the driving disk 9 via a rotating shaft. The ends of the second driving rods 93 furthest from the driving disk 9 are rotatably connected to the driving plate 91 via a rotating shaft. Rotating the driving disk 9 drives the flattening auxiliary block 42 to rotate back and forth through the transmission of two sets of connecting rods, thereby reducing the angle between the flattening inclined surface 43 and the horizontal plane to further fold the passing label paper and improve the folding effect.

[0038] For ease of use, please refer to Figure 1 and Figure 4 Two first auxiliary sprockets 531 are fitted onto the rotating roller 53 to limit the position of the adhesive paper. A second auxiliary sprocket 532 is rotatably mounted on the side wall of the flattening block 4. An auxiliary chain 533 is meshed with one of the first auxiliary sprockets 531 and the second auxiliary sprocket 532. A second transmission assembly 7 is provided between the drive disk 9 and the second auxiliary sprocket 532. The second transmission assembly 7 is used to drive the drive disk 9 to rotate according to the rotation of the second auxiliary sprocket 532. The second transmission assembly 7 includes a first transmission bevel gear 71 and a second transmission bevel gear 72. Both the first transmission bevel gear 71 and the second transmission bevel gear 72 are rotatably mounted in the auxiliary groove 45 and mesh with each other. The first transmission bevel gear 71 is coaxially and fixedly connected to the second auxiliary sprocket 532, and the second transmission bevel gear 72 is coaxially and fixedly connected to the drive disk 9. When the rotating roller 53 rotates, it drives the first rotating bevel gear to rotate through the chain and sprocket, and then drives the drive disk 9 to rotate through the second transmission bevel gear 72, realizing transmission, simplifying operation, improving the convenience of use, saving drive components, and saving energy and reducing consumption.

[0039] This application discloses a folding method for producing double-sided QR code labels, including the following steps: Step 1: Install the label paper on the base 1, cut the label paper into multiple parts with the cutter, and tear off the oil paper. The oil paper is wound up by the winding structure 13, so that the label paper passes through the pre-lifting groove 21, the straightening groove 31 and the flattening groove 41 in sequence, and passes through the gap between the moving roller 51 and the surface of the base 1. The adhesive paper is wrapped around the rotating roller 53, so that the adhesive paper covers the label paper and passes through the gap between the moving roller 51 and the surface of the base 1 together with the label paper.

[0040] Step 1: Start the moving motor 52 to drive the moving roller 51 to rotate, and start the motor on the winding structure 13. The label is moved by the squeezing of the moving roller 51. The label paper is cut by the cutting blade 111. The label paper is pressed against the pre-lifting slope 23, the straightening vertical surface 33 and the flattening slope 43 in sequence, so that the label paper is folded into obtuse angle, right angle and acute angle in sequence. Finally, the label paper is squeezed by the moving roller 51 to complete the folding. During this process, the oil paper and the adhesive paper are replaced.

[0041] The implementation principle of a folding device for producing double-sided QR code labels according to an embodiment of this application is as follows: the label paper passing through the pre-lifting groove 21, the straightening groove 31 and the flattening groove 41 moves forward under the squeezing action of the driving roller. During this process, the label paper is squeezed by the pre-lifting inclined surface 23, the straightening inclined surface 33 and the flattening inclined surface 43 in sequence, thereby gradually folding. Finally, it is squeezed by the driving roller to complete the folding. Compared with manual folding, this device has a faster folding speed and can fold continuously without interruption, thus improving the efficiency of label paper folding.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A folding device for producing double-sided QR code labels, characterized in that: The assembly includes a base (1), a pre-lifting block (2), a straightening block (3), and a flattening block (4). The base (1) is equipped with a moving component (5) that drives the label paper to move. The pre-lifting block (2), the straightening block (3), and the flattening block (4) are all mounted on the base (1). The pre-lifting block (2) is equipped with a pre-lifting auxiliary block (22), which has a pre-lifting inclined surface (23) for holding the label in place. The straightening block (3) is also equipped with a straightening auxiliary block (32), which has a straightening vertical surface (33) for holding the label in place. The flattening block (4) is equipped with a flattening auxiliary block (42), which has a flattening inclined surface (43) for holding the label in place.

2. The folding device for producing double-sided QR code labels according to claim 1, characterized in that: The moving component (5) includes a moving motor (52) and a moving roller (51). The moving roller (51) is rotatably mounted on the base (1). The moving motor (52) is mounted on the base (1). The rotating shaft of the moving motor (52) is connected to the moving roller (51). The moving roller (51) is used to abut against and push the label to move.

3. The folding device for producing double-sided QR code labels according to claim 2, characterized in that: The base (1) is rotatably provided with a rotating roller (53), and a first transmission component (6) is provided between the rotating roller (53) and the moving roller (51). The first transmission component (6) is used to drive the rotating roller (53) to rotate according to the rotation of the moving roller (51). The rotating roller (53) is used to bypass the bonding paper.

4. The folding device for producing double-sided QR code labels according to claim 3, characterized in that: The first transmission assembly (6) includes a first transmission gear (61) and a second transmission gear (62). The first transmission gear (61) is disposed on the moving roller (51), and the second transmission gear (62) is disposed on the rotating roller (53). The first transmission gear (61) meshes with the second transmission gear (62).

5. A folding device for producing double-sided QR code labels according to claim 3, characterized in that: The flattening block (4) is provided with a flattening groove (41), and the flattening auxiliary block (42) is rotatably disposed in the flattening groove (41). The flattening block (4) is provided with a driving groove (44) communicating with the flattening groove (41). A driving plate (91) is slidably disposed in the driving groove (44). A first driving rod (92) is rotatably disposed on the driving plate (91). The first driving rod (92) is rotatably connected to the flattening auxiliary block (42). The flattening block (4) is provided with an auxiliary groove (45) communicating with the driving groove (44). A driving disk (9) is rotatably disposed in the auxiliary groove (45). A second driving rod (93) is disposed in the driving groove (44). The second drive rod (93) is rotatably connected at one end to the drive disc (9) and rotatably connected at the other end to the drive plate (91). The rotating roller (53) is provided with a first auxiliary sprocket (531). The flattening block (4) is rotatably provided with a second auxiliary sprocket (532). An auxiliary chain (533) is meshed on the first auxiliary sprocket (531) and the second auxiliary sprocket (532). A second transmission assembly (7) is provided between the drive disc (9) and the second auxiliary sprocket (532). The second transmission assembly (7) is used to drive the drive disc (9) to rotate according to the rotation of the second auxiliary sprocket (532).

6. A folding device for producing double-sided QR code labels according to claim 5, characterized in that: The second transmission assembly (7) includes a first transmission bevel gear (71) and a second transmission bevel gear (72). The first transmission bevel gear (71) and the second transmission bevel gear (72) are rotatably disposed in the auxiliary groove (45) and mesh with each other. The first transmission bevel gear (71) is connected to the second auxiliary sprocket (532), and the second transmission bevel gear (72) is connected to the drive disk (9).

7. A folding device for producing double-sided QR code labels according to claim 1, characterized in that: The base (1) is rotatably provided with an installation rod (14), the installation rod (14) is provided with an installation auxiliary rod (141), the pre-lifting block (2), the straightening block (3) and the flattening block (4) are all provided with a first installation groove (46) for the installation rod (14) to be inserted, the pre-lifting block (2), the straightening block (3) and the flattening block (4) are all provided with a second installation groove (461) communicating with the first installation groove (46), and the second installation groove (461) is provided for the installation auxiliary rod (141) to be inserted.

8. A folding device for producing double-sided QR code labels according to claim 7, characterized in that: The mounting rod (14) is provided with a mounting gear (142). The pre-lifting block (2), straightening block (3) and flattening block (4) are all provided with a third mounting groove (463) that communicates with the first mounting groove (46). A mounting rack (464) that can mesh with the mounting gear (142) is slidably provided in the third mounting groove (463). The flattening block (4) is provided with a pushing component (8). The pushing component (8) is used to push the mounting rack (464) to slide.

9. A folding device for producing double-sided QR code labels according to claim 8, characterized in that: The pushing assembly (8) includes a pushing block (81) and a pushing cylinder (82). The pushing block (81) is slidably connected to the pre-lifting block (2), the straightening block (3), and the flattening block (4). The pushing cylinder (82) is mounted on the flattening block (4). The pushing block (81) is connected to each mounting rack (464). The piston rod of the pushing cylinder (82) is connected to the pushing block (81).

10. A folding method for producing double-sided QR code labels, used in the folding device for producing double-sided QR code labels as described in claim 2, characterized in that: Includes the following steps: Step 1: Pass the label paper through the pre-lifting block (2), the straightening block (3) and the flattening block (4) in sequence, so that the pre-lifting inclined surface (23), the straightening vertical surface (33) and the flattening inclined surface (43) abut against the label paper in sequence, and so that the label paper passes between the moving roller (51) and the base (1); Step 2: Start the moving motor (52) to drive the moving roller (51) to rotate. The label is moved by the squeezing of the moving roller (51). The label paper is pressed against the pre-lifting inclined surface (23), the straightening vertical surface (33) and the flattening inclined surface (43) in sequence, so that the label paper is folded into obtuse angle, right angle and acute angle in sequence, and finally squeezed by the moving roller (51) to complete the folding.

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