Roll paper two-dimensional code spraying printing machine

Abstract

The invention discloses a roll paper two-dimensional code spraying printing machine, and relates to the technical field of computer code spraying machines, the roll paper two-dimensional code spraying printing machine comprises a spraying printing device, a plurality of code spraying heads are installed on the spraying printing device at equal intervals, and a moving seat is arranged below the spraying printing device; the anti-tearing assembly in the device can dynamically adjust the speed of the paper releasing device when the winding device breaks down and the paper is subjected to overlarge tension, so that the instantaneous tension of the surface of the paper is reduced, the paper is prevented from being torn, meanwhile, the situation that equipment is shut down for maintenance and needs manual intervention for recovery due to paper tearing can be avoided, and the production efficiency is improved. The problem that in the prior art, when a winding device accelerates accidentally, paper is directly stretched, and instantaneous tension on the surface of the paper is increased, the paper is torn and damaged is solved, in this way, the situation that the paper is torn can be avoided, equipment damage caused by the tension problem is reduced, the service life of equipment is prolonged, and auxiliary equipment repair is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printers, and more particularly to a web-fed two-dimensional code inkjet printer. Background Art

[0002] A web-fed two-dimensional code inkjet printer is an industrial device connected to a computer for inkjet printing two-dimensional codes on web paper. Its main function is to accurately print variable information (such as two-dimensional codes, barcodes, text, patterns, etc.) on continuous web materials through inkjet technology using a computer; Existing inkjet printers do not perform paper alignment before printing. If misalignment occurs, manual alignment is required. If the two ends of the paper on the paper receiving device and the paper feeding device are not aligned, the paper may shift or skew during the paper winding process, further causing problems such as paper tearing, wrinkling, or edge damage; Existing inkjet printers perform inkjet printing while the paper is moving at high speed. Due to the movement of the paper and the delay in the inkjet time, this method may cause blurred inkjet or ghosting, resulting in the unusability of the printed paper and wasting the paper; Existing inkjet printers do not have an anti-tearing device. If the motor driving the paper receiving device to receive paper malfunctions, the transmission data is not synchronized, or the transmission components are worn, the rotational speed of the output shaft of the machine shaft suddenly increases, which will cause the paper to be subjected to excessive tension, instantaneously increasing the surface tension of the paper and making it extremely prone to tearing and damage. The torn paper cannot be wound normally, resulting in material waste and even scrapping of the entire batch of products.

[0003] To solve the above problems, the inventor has proposed a web-fed two-dimensional code inkjet printer. Summary of the Invention

[0004] To solve the above technical problems, a web-fed two-dimensional code inkjet printer is provided. This technical solution solves the problems raised in the above background art; To achieve the above objectives, the present invention may adopt the following technical solutions: The present invention provides a web-fed two-dimensional code inkjet printer, including an inkjet printing device, on which several inkjet heads are equidistantly installed, and a moving seat is arranged below the inkjet printing device; A tear prevention component is provided on the moving seat. The tear prevention component includes a paper feeding column and a paper receiving column fixedly connected to the upper surface of the moving seat. A support rod is fixedly connected to the paper feeding column. A torsion spring is sleeved outside the support rod. A connecting rod is rotatably connected to the support rod. One side of the connecting rod away from the support rod is rotatably connected to a support cylinder. A ratchet ring is fixedly connected to the outer side wall of the connecting rod. A disc is rotatably connected to the support rod. Several springs are fixedly connected to the outer ring surface of the disc at equal intervals in a ring shape. Each spring is fixedly connected with a ratchet pawl. A core shaft cylinder is fixedly connected to the side of the disc away from the connecting rod. A guiding cylinder and a paper receiving cylinder are rotatably connected to the paper receiving column. A servo motor is installed on the side of the paper receiving column away from the paper receiving cylinder.

[0005] Preferably, one end of the torsion spring is fixedly connected to the paper feeding column, and the end of the torsion spring away from the paper feeding column is fixedly connected to the connecting rod.

[0006] Preferably, one side of the ratchet ring close to the support rod is provided with one-way teeth. Each ratchet pawl is rotatably connected to the disc, and each ratchet pawl is meshed with the one-way teeth on the ratchet ring.

[0007] Preferably, the output shaft of the servo motor is fixedly connected to the paper receiving cylinder, and an encoder is provided on the servo motor.

[0008] Preferably, an alignment component is provided on the paper feeding column. The alignment component includes a guide rod one fixedly connected to the paper feeding column. Two moving blocks one are symmetrically and slidably connected to the guide rod one. A guide rod two is fixedly connected to the side of the paper receiving column close to the paper receiving cylinder. Two moving blocks two are symmetrically and slidably connected to the guide rod two. An alignment plate is slidably connected to each of the moving blocks two and the moving blocks one. A bidirectional threaded rod is rotatably connected to the side of the paper feeding column close to the guide rod one. A knob is rotatably connected to the side of the paper feeding column away from the guide rod one. A connecting plate is fixedly connected to the side of each moving block two close to the guide rod one.

[0009] Preferably, both of the two moving blocks one are threadedly connected to the bidirectional threaded rod. Each connecting plate is fixedly connected to the adjacent moving block one, and the knob is fixedly connected to the bidirectional threaded rod.

[0010] Preferably, a moving component is provided on the printing device. The moving component includes a base fixedly connected to the outer wall of the printing device. A one-way threaded rod is rotatably connected to the base. A turntable is rotatably connected to the outer wall of the base. A limiting rod is fixedly connected to the side of the base away from the one-way threaded rod. Two limiting rings are detachably and symmetrically fixedly connected to the limiting rod.

[0011] Preferably, the one-way threaded rod is threadedly connected to the moving seat, the limiting rod is slidably connected to the moving seat, and the turntable is fixedly connected to the one-way threaded rod.

[0012] As described above, the advantages of the present invention are as follows: When a failure occurs in the winding device of the present device, causing the paper to be subjected to excessive tensile force, the anti-tearing component in the device can dynamically adjust the speed of the paper feeding device, thereby reducing the instantaneous tension on the paper surface, avoiding paper tearing, and at the same time avoiding the situation where the device needs to be shut down for maintenance due to paper tearing and manual intervention is required for recovery. It solves the problem in the traditional technology that when the winding device accelerates unexpectedly, the paper is directly stretched, the instantaneous tension on the paper surface increases, and the paper tears and is damaged. In this way, the situation of paper tearing can be avoided, the equipment damage caused by tension problems can be reduced, the service life of the equipment can be extended, the repair of auxiliary equipment can be further reduced, and the paper can be effectively moved horizontally and smoothly, and the paper can also be effectively displaced to the printing position.

[0013] Compared with the prior art where there is no measure for paper alignment, the alignment component in the present device can limit the paper on the paper feeding device and the paper receiving device, so that the paper moves horizontally towards the inkjet printing position in an aligned state, avoiding the phenomenon of paper deviation or skew winding during the paper receiving process, solving the problem of paper running deviation caused by the lack of paper limiting measures, resulting in winding disorder, and the position of the printed two-dimensional code deviating due to paper running deviation, making the printed roll paper unusable. In this way, the stability during the inkjet printing and transmission of the roll paper can be improved, the generation of waste paper can be reduced, and the roll paper can be effectively supported and fed during inkjet printing and effectively exported smoothly.

[0014] Compared with the way of moving the inkjet head in the prior art, the moving component in the present device adjusts the position of the paper relative to the inkjet head by moving the paper feeding device and the paper receiving device, realizing inkjet printing at different positions, without manual adjustment of the inkjet head, solving the problem of ink leakage caused by the decline of the sealing performance of the ink passage when moving the inkjet head. The inkjet head always remains stationary in place, and the maintenance of the ink path and the inkjet head becomes simpler. In this way, the loss of the inkjet head can be reduced, the service life of the inkjet head can be extended, the repair of auxiliary equipment can be further reduced, and the paper can be effectively fed to the printing position.

[0015] Compared with the prior art where the roll paper is inkjet printed while always moving, the present device uses an encoder to set the length of each paper receiving, so that the roll paper stops moving when inkjet printing, ensuring that the relative position between the paper and the inkjet head is fixed, thereby significantly improving the accuracy of inkjet printing, solving the problem of inkjet printing position deviation or blurring caused by the high-speed movement of the paper, and then fixing the paper to the printing position, effectively reducing the problem of defective products caused by mobile printing. Brief Description of the Drawings

[0016] Figure 1Front three-dimensional schematic diagram of the overall structure shown in the present invention; Figure 2 Three-dimensional schematic diagram of the related components of the paper feeding column and the paper receiving column shown in the present invention; Figure 3 Three-dimensional schematic diagram of the related components of the torsion spring and the connecting rod shown in the present invention; Figure 4 Three-dimensional schematic diagram of the related components of the torsion spring and the paper feeding column shown in the present invention; Figure 5 Three-dimensional schematic diagram of the related components of the spring and the pawl shown in the present invention; Figure 6 Plane schematic diagram of the rotation direction of the disc shown in the present invention; Figure 7 Partial three-dimensional schematic diagram of the alignment component shown in the present invention; Figure 8 Exploded three-dimensional schematic diagram of the first moving block, the second moving block and the alignment plate shown in the present invention; Figure 9 Partial three-dimensional schematic diagram of the moving component shown in the present invention; Figure 10 Top view plane schematic diagram of the related components of the limiting rod and the limiting ring shown in the present invention.

[0017] Among them, the reference numerals in the present invention are: 1. Inkjet printing device; 11. Inkjet printing head; 2. Moving seat; Anti-tearing component: 31. Paper feeding column; 32. Paper receiving column; 33. Support rod; 34. Torsion spring; 35. Connecting rod; 36. Support cylinder; 37. Ratchet ring; 38. Disc; 39. Spring; 310. Pawl; 311. Core shaft cylinder; 312. Guide cylinder; 313. Paper receiving cylinder; 314. Servo motor; Alignment component: 41. First guide rod; 42. First moving block; 43. Second guide rod; 44. Second moving block; 45. Alignment plate; 46. Bidirectional threaded rod; 47. Knob; 48. Connecting plate; Moving component: 51. Base; 52. Unidirectional threaded rod; 53. Turntable; 54. Limiting rod; 55. Limiting ring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] The embodiments provided by the present invention will be elaborated in detail below: A web-fed two-dimensional code inkjet printer, as Figure 1 shown, includes an inkjet printing device 1. A plurality of inkjet heads 11 are equidistantly installed on the inkjet printing device 1. The inkjet heads 11 can spray two-dimensional codes on the paper surface of the web, and the web unfolding inkjet area can correspond to the plurality of inkjet heads 11. A moving seat 2 is arranged below the inkjet printing device 1; As Figures 2 to 6 shown, an anti-tearing component is arranged on the moving seat 2. The anti-tearing component includes a paper feeding column 31 and a paper receiving column 32 fixedly connected to the upper surface of the moving seat 2. The paper feeding column 31 and the paper receiving column 32 are arranged in parallel. A support rod 33 is fixedly connected to the side wall of the paper feeding column 31. A torsion spring 34 is sleeved outside the support rod 33. A connecting rod 35 is rotatably connected to the support rod 33. The connecting rod 35 is located on the side of the torsion spring 34 away from the paper feeding column 31. One side of the connecting rod 35 away from the support rod 33 is rotatably connected to a support cylinder 36. A ratchet ring 37 is fixedly connected to the outer side wall of the connecting rod 35. A disc 38 is rotatably connected to the side of the support rod 33 close to the connecting rod 35. The ratchet ring 37 is located outside the disc 38. A plurality of springs 39 are fixedly connected to the outer ring surface of the disc 38 at equal intervals in the circumferential direction. Each spring 39 is fixedly connected with a ratchet pawl 310. A core shaft cylinder 311 is fixedly connected to the side of the disc 38 away from the connecting rod 35. The core shaft cylinder 311 is used for feeding paper during the inkjet printing process. A guiding cylinder 312 and a paper receiving cylinder 313 are rotatably connected to the paper receiving column 32. The guiding cylinder 312 and the paper receiving cylinder 313 are located on the same side of the paper receiving column 32. The guiding cylinder 312 and the support cylinder 36 are arranged in parallel. The paper receiving cylinder 313 and the core shaft cylinder 311 are arranged in parallel. A servo motor 314 is installed on the side of the paper receiving column 32 away from the paper receiving cylinder 313.

[0020] Further, as Figure 3 and Figure 4 shown, one end of the torsion spring 34 is fixedly connected to the paper feeding column 31, and the end of the torsion spring 34 away from the paper feeding column 31 is fixedly connected to the connecting rod 35.

[0021] Further, as Figures 4 to 6 shown, the ratchet ring 37 is annularly provided with one-way teeth on the side close to the support rod 33. Each ratchet pawl 310 is rotatably connected to the disc 38, and each ratchet pawl 310 is meshed with the one-way teeth on the ratchet ring 37.

[0022] Further, as Figure 2 shown, the output shaft of the servo motor 314 is fixedly connected to the paper receiving cylinder 313, and an encoder is arranged on the servo motor 314. The encoder is used to set the number of turns of the servo motor 314 rotating before inkjet printing.

[0023] Further, as Figure 7 and Figure 8As shown in the figure, an alignment component is provided on the paper feeding column 31. The alignment component includes a first guide rod 41 fixedly connected to the paper feeding column 31. The first guide rod 41 is located on one side of the paper feeding column 31 close to the core shaft cylinder 311 and below the core shaft cylinder 311. Two first moving blocks 42 are symmetrically and horizontally slidably connected to the first guide rod 41. On one side of the paper receiving column 32 close to the paper receiving cylinder 313, a second guide rod 43 is fixedly connected. Two second moving blocks 44 are symmetrically and horizontally slidably connected to the second guide rod 43. The two first moving blocks 42 and the two second moving blocks 44 are arranged in parallel. An alignment plate 45 is vertically slidably connected to each of the second moving blocks 44 and the first moving blocks 42. The alignment plates 45 on the two second moving blocks 44 are located below the paper receiving cylinder 313, and the alignment plates 45 on the two first moving blocks 42 are located below the core shaft cylinder 311. On one side of the paper feeding column 31 close to the first guide rod 41, a bidirectional threaded rod 46 is rotatably connected. The bidirectional threaded rod 46 is arranged in parallel with the first guide rod 41. On the side of the paper feeding column 31 far from the first guide rod 41, a knob 47 is rotatably connected. A connecting plate 48 is fixedly connected to one side of each of the second moving blocks 44 close to the first guide rod 41.

[0024] Further, as Figure 7 and Figure 8 shown, both of the two first moving blocks 42 are threadedly connected to the bidirectional threaded rod 46. The two first moving blocks 42 are located on two threads with opposite directions of the bidirectional threaded rod 46. Each connecting plate 48 is fixedly connected to the adjacent first moving block 42. The connecting plate 48 is used to connect the second moving block 44 and the first moving block 42, so that the two second moving blocks 44 move together with the two first moving blocks 42. The knob 47 is fixedly connected to the bidirectional threaded rod 46. The staff can rotate the knob 47 to make the bidirectional threaded rod 46 rotate, thereby driving the two first moving blocks 42 to move horizontally relative to or towards each other.

[0025] Further, as Figure 9 and Figure 10 shown, a moving component is provided on the printing device 1. The moving component includes a base 51 fixedly connected to the outer wall of the printing device 1. The base 51 is located on the side of the printing device 1 close to the moving seat 2. A unidirectional threaded rod 52 is rotatably connected to the base 51. A turntable 53 is rotatably connected to the side of the base 51 far from the unidirectional threaded rod 52. A limiting rod 54 is fixedly connected to the side of the base 51 far from the unidirectional threaded rod 52. The limiting rod 54 is arranged in parallel with the unidirectional threaded rod 52. Two limiting rings 55 are detachably and symmetrically fixedly connected to the limiting rod 54, and the limiting rings 55 are detachably connected to the limiting rod 54 through bolts and nuts. The two limiting rings 55 are respectively located on both sides of the moving seat 2.

[0026] Further, as Figure 9 and Figure 10As shown, the one-way threaded rod 52 is threadedly connected to the outer surface of the moving seat 2, the limiting rod 54 is horizontally slidably connected to the moving seat 2, and the turntable 53 is fixedly connected to the one-way threaded rod 52. The staff can rotate the turntable 53 to make the one-way threaded rod 52 rotate, thereby driving the moving seat 2 to move horizontally.

[0027] During operation: This device can keep the paper of the web aligned on the core tube 311 and the paper receiving tube 313. The following are the detailed steps: The staff first removes the alignment plates 45 on the two second moving blocks 44 and the two first moving blocks 42, aligns the cavity axis of the web with the core tube 311, and pushes it into the core tube 311 so that the web is sleeved on the outside of the core tube 311. Subsequently, the staff puts the four removed alignment plates 45 back into the second moving blocks 44 and the first moving blocks 42. After the four alignment plates 45 return to the second moving blocks 44 and the first moving blocks 42, the staff rotates the knob 47 clockwise. The knob 47 drives the bidirectional threaded rod 46 to rotate clockwise together, so that the two first moving blocks 42 and the alignment plates 45 on the first moving blocks 42 approach each other along the first guide rod 41, and further makes the alignment plates 45 on the first moving blocks 42 push the web, so that the center of the web coincides with the center of the core tube 311. When the center of the web coincides with the center of the core tube 311, the alignment plates 45 on the two first moving blocks 42 simultaneously contact both ends of the web. The staff stops rotating the knob 47. At this time, the two first moving blocks 42 are in a stationary state. While the two first moving blocks 42 approach each other, the two first moving blocks 42 respectively drive the two second moving blocks 44 to approach each other along the second guide rod 43 through the connecting plate 48. When the two first moving blocks 42 remain stationary, the two second moving blocks 44 also remain stationary. Subsequently, the paper on the web is pulled out so that the paper passes above the support tube 36 and the guiding tube 312, and the paper is placed on the support tube 36 and the guiding tube 312 and fixed on the outer surface of the paper receiving tube 313, ensuring that both sides of the paper fixed on the outer surface of the paper receiving tube 313 are respectively in contact with the alignment plates 45 on the two second moving blocks 44. In this way, it is ensured that the paper remains aligned during subsequent paper feeding and paper receiving, ensuring the neatness of the paper roll, avoiding deviation during the paper receiving process, and further avoiding deviation of the position of the two-dimensional code printed on the paper surface.

[0028] In the above process, compared with the prior art where there is no paper alignment measure, the alignment component in this device can limit the paper on the paper feeding device and the paper receiving device, enabling the paper to move horizontally towards the inkjet printing position in an aligned state, avoiding the phenomena of paper deviation or skew winding during the paper receiving process, solving the problems of paper running off track due to the lack of paper limiting measures, resulting in disordered winding, and the position of the printed QR code shifting due to paper running off track, making the printed roll paper unusable. In this way, the stability of the roll paper during inkjet printing and transmission can be improved, and the generation of waste paper can be reduced. Furthermore, it can effectively support the paper feeding during inkjet coding of the roll paper output and effectively guide the roll paper smoothly out.

[0029] This device can perform inkjet coding at different positions of the paper. The following are the detailed steps: After the staff fixes the paper on the surface of the paper receiving cylinder 313, the position of the paper relative to the inkjet head 11 can be adjusted as needed. The position of the paper can be adjusted by rotating the turntable 53 forward or backward. If the staff rotates the turntable 53 forward, the turntable 53 drives the one-way threaded rod 52 to rotate forward together, causing the moving seat 2 to drive the paper on the paper feeding column 31 and the paper receiving column 32 to move horizontally along the limiting rod 54 towards the side close to the inkjet printing device 1. When the moving seat 2 touches the limiting ring 55 on the side close to the inkjet printing device 1, it indicates that this position is the maximum distance for the paper to move towards the side close to the inkjet printing device 1. If the staff rotates the turntable 53 backward, the turntable 53 drives the one-way threaded rod 52 to rotate backward together, causing the moving seat 2 to drive the paper on the paper feeding column 31 and the paper receiving column 32 to move horizontally along the limiting rod 54 towards the side away from the inkjet printing device 1. When the moving seat 2 touches the limiting ring 55 on the side away from the inkjet printing device 1, it indicates that this position is the maximum distance for the paper to move away from the inkjet printing device 1.

[0030] In the above process, compared with the prior art method of moving the inkjet head, the moving component in this device adjusts the position of the paper relative to the inkjet head by moving the paper feeding device and the paper receiving device, achieving inkjet coding at different positions. There is no need for manual adjustment of the inkjet head, solving the problem of ink leakage caused by the decline in the sealing performance of the ink passage when moving the inkjet head. The inkjet head always remains stationary in place, and the maintenance of the ink path and the inkjet head becomes simpler. In this way, the loss of the inkjet head can be reduced, the service life of the inkjet head can be extended, and the repair of auxiliary equipment can be further reduced. Furthermore, it can effectively feed the paper to the printing position.

[0031] After completing the above steps, the staff operates the encoder on the servo motor 314 to set the servo motor 314 to rotate a fixed number of turns and then stop rotating. Specifically, when the output shaft of the servo motor 314 drives the paper receiving cylinder 313 to rotate for paper receiving, the length of the received paper is equal to the straight-line distance between the guiding cylinder 312 and the supporting cylinder 36, and the output shaft of the servo motor 314 stops rotating after the paper is received. At this time, the inkjet coding areas on multiple sheets of paper are aligned with most of the inkjet heads 11, waiting for the inkjet heads 11 on the inkjet printing device 1 to print two-dimensional codes on the paper surface. In this way, the movement of the paper and the inkjet coding operation are alternated, thereby improving the inkjet coding quality.

[0032] In the above process, compared with the prior art in which the web-fed paper keeps moving while being inkjet-coded, this device uses the encoder to set the length of each paper receiving, so that the inkjet coding is performed when the web-fed paper stops moving, ensuring that the relative position between the paper and the inkjet head is fixed, thereby significantly improving the accuracy of the inkjet coding, solving the problems of inkjet coding position deviation or unclear due to the high-speed movement of the paper, and further fixing the paper to the printing position, effectively reducing the problem of defective products caused by mobile printing.

[0033] Since the servo motor 314 is a prior art, there is a situation where the output shaft speed of the servo motor 314 suddenly increases due to internal faults or wear of transmission components and data errors. This device can avoid the situation where the paper is torn due to the sudden increase in the output shaft speed of the servo motor 314. The following are the detailed steps: If the servo motor 314 fails, causing the rotational speed of the paper receiving cylinder 313 connected to the output shaft of the servo motor 314 to suddenly increase, the paper will be "suddenly tightened", resulting in an instantaneous increase in the surface tension of the paper. When the surface tension of the paper increases, the supporting cylinder 36 will be subjected to the pulling forces of the paper on both sides. This pulling force will apply a downward force on the supporting cylinder 36, causing the supporting cylinder 36 to rotate downward and compress the torsion spring 34, making the torsion spring 34 in a compressed state; During the downward rotation of the connecting rod 35, the one-way teeth provided on the ratchet ring 37 come into contact with the vertical surface of the pawl 310 and catch the pawl 310. As the ratchet ring 37 continues to rotate, it further pushes the pawl 310, and then further pushes the disc 38 to rotate clockwise, increasing the rotational speed of the core shaft cylinder 311, and further causing the web-fed paper on the core shaft cylinder 311 to "release more paper", reducing the instantaneous tension on the paper surface, thereby effectively avoiding the paper from being torn; When the rotational speed of the output shaft of the servo motor 314 returns to normal, the tension on the paper surface decreases to the initial value, and the support cylinder 36 is no longer subjected to the suddenly increased pulling forces of the paper on both sides, causing the torsion spring 34 to rebound and reset. With the help of the rebound and reset of the torsion spring 34, the connecting rod 35 rotates upward and drives the ratchet ring 37 to rotate upward together. During the upward rotation of the ratchet ring 37, the one-way teeth inside the ratchet ring 37 slide past the outside of the pawl 310 one by one and compress the spring 39, causing the pawl 310 to rotate around the connection point with the disk 38 towards the side close to the spring 39, putting the spring 39 in a compressed state. When the pawl 310 leaves the angle between two adjacent one-way teeth inside the ratchet ring 37, the spring 39 elongates and pushes the pawl 310 into the angle between the next one-way teeth inside the ratchet ring 37. In this way, during the upward rotation of the ratchet ring 37, the ratchet ring 37 no longer jams the pawl 310, enabling the disk 38 to rotate normally for paper feeding; In the above process, compared with the prior art, the anti-tearing component in this device can dynamically adjust the speed of the paper feeding device when the winding device fails and causes the paper to be subjected to excessive pulling force, thereby reducing the instantaneous tension on the paper surface, avoiding paper tearing, and at the same time avoiding the situation where the equipment needs to be shut down for maintenance and manual intervention for recovery due to paper tearing. It solves the problem in the traditional technology that when the winding device accidentally accelerates, the paper is directly stretched, the instantaneous tension on the paper surface increases, and the paper is torn and damaged. In this way, the situation of paper tearing can be avoided, the equipment damage caused by tension problems can be reduced, the service life of the equipment can be extended, the repair of auxiliary equipment can be further reduced, and the paper can be effectively moved horizontally and smoothly, and the paper can also be effectively displaced to the printing position.

[0034] The above are only the embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A web-fed two-dimensional code inkjet printer, comprising an inkjet printing device (1), characterized in that, A plurality of printing heads (11) are equidistantly installed on the printing device (1), and a moving base (2) is arranged below the printing device (1). An anti-tearing component is arranged on the moving base (2). The anti-tearing component includes a paper feeding column (31) and a paper receiving column (32) fixedly connected to the upper surface of the moving base (2). A support rod (33) is fixedly connected to the paper feeding column (31). A torsion spring (34) is sleeved outside the support rod (33). A connecting rod (35) is rotatably connected to the support rod (33). One side of the connecting rod (35) away from the support rod (33) is rotatably connected to a support cylinder (36). A ratchet ring (37) is fixedly connected to the outer side wall of the connecting rod (35). A disc (38) is rotatably connected to the support rod (33). A plurality of springs (39) are fixedly connected to the outer ring surface of the disc (38) at equal intervals in the circumferential direction. Each spring (39) is fixedly connected with a ratchet pawl (310). A core shaft cylinder (311) is fixedly connected to the side of the disc (38) away from the connecting rod (35). A guiding cylinder (312) and a paper receiving cylinder (313) are rotatably connected to the paper receiving column (32). A servo motor (314) is installed on the side of the paper receiving column (32) away from the paper receiving cylinder (313).

2. The web-fed two-dimensional code inkjet printing machine according to claim 1, wherein One end of the torsion spring (34) is fixedly connected to the paper feeding column (31), and the end of the torsion spring (34) away from the paper feeding column (31) is fixedly connected to the connecting rod (35).

3. The web-fed two-dimensional code inkjet printer according to claim 1, characterized in that, One side of the ratchet ring (37) close to the support rod (33) is provided with one-way teeth. Each ratchet pawl (310) is rotatably connected to the disc (38), and each ratchet pawl (310) is meshed with the one-way teeth on the ratchet ring (37).

4. A web-fed two-dimensional code inkjet printer according to claim 1, wherein, The output shaft of the servo motor (314) is fixedly connected to the paper receiving cylinder (313), and an encoder is arranged on the servo motor (314).

5. The web-fed two-dimensional code inkjet printer according to claim 1, characterized in that, An alignment component is arranged on the paper feeding column (31). The alignment component includes a first guide rod (41) fixedly connected to the paper feeding column (31). Two first moving blocks (42) are symmetrically and slidably connected to the first guide rod (41). A second guide rod (43) is fixedly connected to the side of the paper receiving column (32) close to the paper receiving cylinder (313). Two second moving blocks (44) are symmetrically and slidably connected to the second guide rod (43). An alignment plate (45) is slidably connected to each of the second moving blocks (44) and the first moving blocks (42). A bidirectional threaded rod (46) is rotatably connected to the side of the paper feeding column (31) close to the first guide rod (41). A knob (47) is rotatably connected to the side of the paper feeding column (31) away from the first guide rod (41). A connecting plate (48) is fixedly connected to the side of each second moving block (44) close to the first guide rod (41).

6. The web-fed two-dimensional code inkjet printer according to claim 5, characterized in that, Both of the two first moving blocks (42) are threadedly connected to the bidirectional threaded rod (46). Each connecting plate (48) is fixedly connected to the adjacent first moving block (42), and the knob (47) is fixedly connected to the bidirectional threaded rod (46).

7. A web-fed two-dimensional code inkjet printer according to claim 1, characterized in that, A moving component is provided on the inkjet printing device (1). The moving component includes a base (51) fixedly connected to the outer wall of the inkjet printing device (1). A unidirectional threaded rod (52) is rotatably connected to the base (51). A turntable (53) is rotatably connected to the outer wall of the base (51). A limiting rod (54) is fixedly connected to one side of the base (51) away from the unidirectional threaded rod (52). Two limiting rings (55) are detachably and symmetrically fixedly connected to the limiting rod (54).

8. A web-fed two-dimensional code inkjet printing machine according to claim 7, characterized in that, The unidirectional threaded rod (52) is threadedly connected to the moving seat (2). The limiting rod (54) is slidably connected to the moving seat (2). The turntable (53) is fixedly connected to the unidirectional threaded rod (52).

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