Code spraying and marking device for anti-counterfeit label of express bag

Abstract

The invention discloses an express bag anti-counterfeit label code spraying and marking device, and particularly relates to the technical field of express bag laser marking, the express bag anti-counterfeit label code spraying and marking device is provided with deviation rectifying and tensioning assemblies under two use scenes, and under one condition, initial tension is consistent, two sliding adjusting units are close to each other, and a guide limiting strip slides in an inclined guide limiting groove; meanwhile, the stretching unit unfolds the edges of the anti-counterfeiting film and the express packaging film on the upper portion, the stretching unit moves along with the corresponding sliding adjusting unit, the corresponding anti-counterfeiting film and the express packaging film are tensioned, the anti-counterfeiting film and the express packaging film are kept aligned during bonding, and the pressing quality is improved; the other condition is that initial tension is inconsistent, the upper guide limiting strip is driven to rotate anticlockwise and the lower guide limiting strip is driven to rotate clockwise through meshing of the upper transmission part and the lower transmission part with the gears on the corresponding sides, the edges of the anti-counterfeiting film and the express packaging film on the upper portion are tensioned, the two transmission parts are independently controlled, and a partitioned tensioning mode is adopted, so that the anti-counterfeiting film and the express packaging film on the upper portion are tensioned. And the device adapts to different tensioning degrees.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking of express bags, and in particular to a coding marking device for an anti-counterfeit label of an express bag. Background Art

[0002] In order to prevent counterfeit and substandard products from entering the market, the demand for anti-counterfeiting labels for express bags is increasing, which requires label marking during the production of express bags. Laser marking is often used. Laser marking uses a high-energy laser beam to instantly convert light energy into heat energy on the surface of an object, causing the surface of the object to evaporate rapidly, thereby engraving any desired text and images on the surface of the object. This process is non-contact and will not cause deformation or stress on the object. It is suitable for various materials such as metal, plastic, glass, etc., and accurately engraves fine textures and patterns on the label that cannot be copied or forged.

[0003] After searching, the invention patent with publication number CN119237946A discloses a laser marking machine for food production packaging. The sealing cover is driven to press down on the top of the packaging bag to seal the top space of the packaging bag. When the displacement mechanism drives the laser marking head to move, the first support block slides synchronously along the inner wall of the first slide groove, thereby driving the two first telescopic curtains to extend and retract synchronously, so as to always seal the first slide groove.

[0004] In the existing solutions, most of them are to glue labels or engrave anti-counterfeiting labels on express packaging bags, but this is easy to be damaged and leave marks. Therefore, the present application provides a coding and marking device for express bag anti-counterfeiting labels. Summary of the invention

[0005] The object of the present invention is to provide a coding and marking device for an anti-counterfeiting label of an express bag to solve the problems mentioned in the above background technology.

[0006] The present invention can be achieved through the following technical solutions:

[0007] A coding and marking device for an anti-counterfeiting label of an express bag comprises a support plate installed on a base plate,

[0008] The rotating plate is rotatably mounted on the inner wall surface of the supporting plate, and the surface of the rotating plate is rotatably provided with two sets of upper and lower transfer rollers, and the two sets of upper and lower transfer rollers are not used at the same time;

[0009] The laser marking head is used for marking the express packaging film and is installed on the support plate and away from the edge of the rotating plate;

[0010] The deviation correction and tensioning assembly is arranged on the inner wall of the support plate and has two usage scenarios for the correction of express packaging film and anti-counterfeiting film. A bidirectional screw is installed on the horizontal plate at the top of the support plate;

[0011] Two upper and lower guide limit grooves are arranged on the support plate, and the guide limit strips are slidably installed inside the guide limit grooves, and a stretching unit is rotatably installed on the surface of the guide limit strips. A pressing roller group 1 for pressing the express packaging film and the anti-counterfeiting film is installed between one side of the stretching unit and the transfer roller, and two upper and lower meshing transmission gears are arranged on the outer side of the pressing roller group 1;

[0012] A guide limit strip in a use scenario correction tensioning assembly is tilted, and a sliding adjustment unit that cooperates with the bidirectional screw thread is installed on the outer side of the guide limit strip;

[0013] Another usage scenario is that the guide limit strip in the deviation correction tensioning assembly is arranged in an arc shape, the guide limit strip is cocentric with the pressing roller group, and a transmission member meshing with the gear is installed on the outer side of the guide limit strip;

[0014] The surface of the stretching unit is slidably provided with an adjusting plate for unfolding and opening the express packaging film and the anti-counterfeiting film outward.

[0015] A further technical improvement of the present invention is that the sliding adjustment unit includes a mounting seat arranged on the outer side of the guide limit strip of the inclined structure, the outer side of the mounting seat is provided with a slide rail, the outer sliding of the slide rail is provided with a sleeve block, and the sleeve block is threadedly sleeved with the bidirectional screw.

[0016] A further technical improvement of the present invention is that the transmission member includes a fixed block arranged on the outer side of the guide limit strip of the arc structure, an electric push rod at one end of the fixed block, a fixed seat is installed at the pushing end of the electric push rod, and a half gear engaged with a gear is installed inside the fixed seat.

[0017] A further technical improvement of the present invention is that a sliding block is installed on the surface of the fixed seat, a guide groove 1 is provided on the surface of the support plate, a plurality of inclined guide grooves 2 are connected in the guide groove 1, and the guide groove 1 is cocentric with the gear on the corresponding side, and the guide groove 1 and the guide groove 2 are both slidably arranged with the sliding block.

[0018] A further technical improvement of the present invention is that the stretching unit includes two adjusting rollers, a dual-axis motor is installed between the two adjusting rollers, a sliding cavity is provided inside each adjusting roller, and a plurality of guide parts communicated with the sliding cavity are provided on the outer surface of the adjusting roller, a transmission screw connected to the output end of the dual-axis motor is provided inside the sliding cavity, and an adjustment plate sliding along the track direction of the guide part is sleeved on the outside of the transmission screw.

[0019] A further technical improvement of the present invention is that the support plate is composed of two vertical plates and are respectively arranged on the two side edges of the base plate. The two vertical plates are arranged in parallel. A raw material roller of the anti-counterfeiting film is installed on the vertical plate. An upper roller and a lower roller for conveying the express packaging film are arranged in sequence below the raw material roller. The lower roller is located directly below the transfer roller, and a guide roller is provided on the side of the laser marking head away from the upper roller.

[0020] A further technical improvement of the present invention is that: the heat sealing chamber is arranged on one side of the support plate;

[0021] The second pressing roller group is arranged in the heat sealing chamber and presses the express packaging film and the express packaging film bonded with the anti-counterfeiting film, and a sealing unit for sealing the edge of the anti-counterfeiting express film is provided on one side of the pressing roller group.

[0022] A further technical improvement of the present invention is that the sealing unit comprises an upper moving plate and a lower moving plate which are close to or far away from each other, the lower moving plate is located below the upper moving plate, and edges of the lower surface of the upper moving plate and the upper surface of the lower moving plate are correspondingly provided with heat sealing strips;

[0023] A plurality of cutting knives are provided in the middle part of the lower surface of the upper moving plate, a cutting seat corresponding to the cutting knives is elastically embedded in the upper surface of the lower moving plate, and a rectangular groove is provided inside the lower moving plate, a plurality of springs are installed inside the rectangular groove, one end of the plurality of springs is commonly connected to a push seat movable in the rectangular groove, a plurality of through holes communicating with the rectangular groove are provided on the upper surface of the lower moving plate, and the push seat is fixed to the plurality of cutting seats.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Two deviation correction and tensioning components are set up for two usage scenarios. In one case, the initial tension is consistent, and the two sliding adjustment units are close to each other, that is, the sliding adjustment unit at the bottom moves upward, and the sliding adjustment unit at the top moves downward. In this process, the guide limit strip slides along the inclined guide limit groove, and at the same time, the stretching unit unfolds the edges of the anti-counterfeiting film and the upper express packaging film. Since the stretching unit moves with the corresponding sliding adjustment unit, the corresponding anti-counterfeiting film and the express packaging film are tensioned, so that they are aligned when bonding, thereby improving the lamination quality; in the other case, the initial tension is inconsistent. Through the meshing of the upper and lower sets of transmission parts with the corresponding side gears, the upper guide limit strip is driven to rotate counterclockwise, while the lower guide limit strip rotates clockwise, thereby tensioning the edges of the anti-counterfeiting film and the upper express packaging film. Due to the inconsistent initial tension, the two sets of transmission parts are independently controlled, and a zoned tensioning method is adopted to adapt to different tensioning degrees;

[0026] 2. Before the express packaging film is bonded to the anti-counterfeiting film, it is first laser-marked by the laser marking head at the fixed position delivered in sequence. The position of each marking is consistent, so that its production has a unified standard. It is rolled up by the transfer roller of the upper group. After the rotating plate rotates, the positions of the transfer rollers of the upper group and the lower group change. The transfer rollers of the lower group repeat the rolling action, and the transfer rollers of the rolled anti-counterfeiting film continue to be pressed together with the express packaging film at the bottom. The transfer rollers in the upper and lower positions are conveniently switched by the rotating plate. The overall coordination of the device is higher. It is sealed by the heat sealing chamber to have a holding space. The produced express bags are unique. Each bag has a unique anti-counterfeiting code, and the anti-counterfeiting code is covered on the inside of the anti-counterfeiting film, which effectively protects the label information from being tampered with or destroyed, thereby improving the anti-counterfeiting effect.

[0027] 3. By setting up the stretching unit, when the transmission screw in the adjusting roller is subjected to the output power of the dual-axis motor, the adjusting plate slides in a directional manner along the direction of the guide part. The adjusting plates in the two sets of stretching units stretch and open the upper and lower surfaces of the anti-counterfeiting film and the express packaging film respectively, so that the stretching and alignment effect is better and wrinkles are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the planar structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0031] Figure 3 It is a schematic diagram of the internal structure of the adjusting roller of the present invention;

[0032] Figure 4 It is a schematic diagram of the three-dimensional installation structure of the mounting seat and the sleeve block in Example 1 of the present invention;

[0033] Figure 5 This is a schematic diagram of the three-dimensional installation structure of the electric push rod and the fixing seat in Example 2 of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the guide groove 1 of the present invention;

[0035] Figure 7 For the present invention Figure 1 A partial enlarged view of point B in the middle.

[0036] In the figure: 1. support plate; 2. rotating plate; 3. pressure roller group 1; 4. transfer roller; 5. heat sealing chamber; 6. pressure roller group 2; 7. laser marking head; 8. guide limit groove; 9. guide limit strip; 10. adjusting roller; 11. mounting seat; 12. sleeve block; 13. slide rail; 14. bidirectional screw; 15. fixed block; 16. electric push rod; 17. gear; 18. fixed seat; 19. slider; 20. half gear; 21. double-axis motor; 22. sliding cavity; 23. transmission screw; 24. guide part; 25. adjusting plate; 26. guide groove 1; 27. guide groove 2; 28. upper moving plate; 29. ​​lower moving plate; 30. cutter; 31. cutting seat; 32. heat sealing strip; 33. through hole; 34. rectangular groove; 35. spring. DETAILED DESCRIPTION

[0037] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0038] See also Figure 1-Figure 7 As shown, the present invention provides a coding marking device for an anti-counterfeit label of an express bag, comprising a support plate 1 mounted on a base plate, a rotating plate 2 is rotatably mounted on the inner wall surface of the support plate 1, and two groups of upper and lower transfer rollers 4 are rotatably arranged on the surface of the rotating plate 2 for rolling up the express packaging film and the anti-counterfeit film pressed together, and the upper and lower transfer rollers 4 are not used at the same time, and a laser marking head 7 for marking the express packaging film is arranged on one side of the edge of the support plate 1 away from the rotating plate 2, and a heat sealing chamber 5 is arranged on one side of the support plate 1;

[0039] The inner wall surface of the support plate 1 is installed with a correction tensioning component for correcting the express packaging film and the anti-counterfeiting film in two usage scenarios, and a bidirectional screw 14 is installed on the horizontal plate at the top of the support plate 1. The correction tensioning component includes two upper and lower guide limit grooves 8 arranged obliquely or arc-shaped, and a guide limit strip 9 is slidably installed inside the guide limit groove 8. A stretching unit is rotatably installed on the surface of the guide limit strip 9. A pressing roller group 3 for pressing the express packaging film and the anti-counterfeiting film is installed between one side of the stretching unit and the transfer roller 4. The outer side of the pressing roller group 3 is provided with upper and lower meshing transmission gears 17;

[0040] A use scenario in which the guide limit strips 9 in the deviation correction tensioning assembly are tilted, and a sliding adjustment unit that is threadably matched with the bidirectional screw 14 is installed on the outer side of each guide limit strip 9;

[0041] Another usage scenario: The guide limit strip 9 in the deviation correction tensioning assembly is set in an arc shape, the guide limit strip 9 is cocentric with the pressing roller group 3, and a transmission member meshing with the gear 17 is installed on the outer side of the guide limit strip 9;

[0042] The surface of the stretching unit is slidably provided with an adjustment plate 25 for opening and distributing the express packaging film and the anti-counterfeiting film outward;

[0043] See also Figure 1 As shown, the anti-counterfeiting film is located at the uppermost position, and the two express packaging films are arranged from top to bottom. Before the express packaging film is pressed together with the anti-counterfeiting film, the surface of the express packaging film is first laser-marked by the laser marking head 7 on the fixed position delivered in sequence. The position of each marking is consistent, so that its production has a unified standard, and then it is aligned and bonded with the upper anti-counterfeiting film to form a whole. After it is rolled up by the transfer roller 4 of the upper group, the positions of the transfer roller 4 of the upper group and the transfer roller 4 of the lower group are changed after the rotating plate 2 rotates 180 degrees, and the transfer roller 4 of the lower group repeats the rolling action, while the transfer roller 4 of the rolled anti-counterfeiting film continues to be pressed together with the lowest express packaging film. The transfer roller 4 of the upper and lower positions is conveniently switched by the rotating plate 2, and the overall coordination of the device is higher. It is sealed by the heat sealing chamber 5 to have a containing space. The produced express bag is unique, and each bag has a unique anti-counterfeiting code, and the anti-counterfeiting code is covered on the inside of the anti-counterfeiting film, which effectively protects the label information from being tampered with or destroyed, thereby improving the anti-counterfeiting effect.

[0044] like Figure 2 and Figure 4 As shown, one use state is that the initial tension of the express packaging film and the anti-counterfeiting film is consistent, and the two sliding adjustment units are driven to approach each other through the rotation of the bidirectional screw 14, that is, the bottom sliding adjustment unit moves upward, and the top sliding adjustment unit moves downward. In this process, the guide limit strip 9 slides along the inclined guide limit groove 8, and at the same time, the stretching unit unfolds the edges of the anti-counterfeiting film and the upper express packaging film. Since the stretching unit moves with the corresponding sliding adjustment unit, the corresponding anti-counterfeiting film and the express packaging film are tensioned, so that they are aligned when bonding, thereby improving the lamination quality;

[0045] Another use state is that the upper and lower transmission parts are meshed with the corresponding side gears 17 to drive the upper guide limit strip 9 to rotate counterclockwise, while the lower guide limit strip 9 rotates clockwise, so as to tighten the edges of the anti-counterfeiting film and the upper express packaging film. Due to the inconsistent initial tension, the two transmission parts are independently controlled and the zone tensioning method is adopted to adapt to different tensioning degrees so that the tension is within a suitable range.

[0046] In both usage scenarios, the stretching unit in the deviation correction and tensioning assembly is in normal rotation. By sliding the adjustment plate 25, the edges of the express packaging film and the anti-counterfeiting film are driven to expand outward, so that the express packaging film and the anti-counterfeiting film are in an aligned state.

[0047] See also Figure 4As shown, the sliding adjustment unit includes a mounting seat 11 arranged on the outer side surface of the guide limit strip 9 of the inclined structure, and a slide rail 13 is provided on the outer side surface of the mounting seat 11. A sleeve block 12 is provided for sliding outside the slide rail 13. The sleeve block 12 is threadedly sleeved with a bidirectional screw 14. Through the rotation of the bidirectional screw 14, the two sleeve blocks 12 are driven to approach each other, that is, the upper sleeve block 12 moves downward and the lower sleeve block 12 moves upward. Since the guide limit strip 9 always slides in the guide limit groove 8, during the movement of the sleeve block 12, the sleeve block 12 slides on the slide rail 13 outside the mounting seat 11, which does not affect the inclined sliding of the guide limit strip 9.

[0048] See also Figure 5 and Figure 6 As shown, the transmission member includes a fixed block 15 arranged on the outer side of the guide limit strip 9 of the arc structure, an electric push rod 16 at one end of the fixed block 15, a fixed seat 18 is installed at the pushing end of the electric push rod 16, and a half gear 20 meshing with the gear 17 is installed inside the fixed seat 18;

[0049] A slider 19 is installed on the surface of the fixing seat 18, and two guide grooves 1 26 are provided on the surface of the support plate 1. A plurality of inclined guide grooves 27 are provided in the guide grooves 1 26, and the guide grooves 1 26 are coaxial with the gear 17 on the corresponding side. The guide grooves 1 26 and the guide grooves 27 are both slidably arranged with the slider 19.

[0050] The electric push rod 16 is extended to push the half gear 20 to engage with the corresponding side gear 17, so that it is mechanically transmitted. The slider 19 slides from the guide groove 27 at the initial position to the position connected with the guide groove 1 26. The upper gear 17 rotates clockwise, and the lower gear 17 rotates counterclockwise. The half gear 20 connected thereto rotates counterclockwise and clockwise respectively to complete the tensioning of the express packaging film and the anti-counterfeiting film. In this process, the slider 19 slides from the guide groove 1 26 to the guide groove 2 27 at different positions and stops. Since the tension between the express packaging film and the anti-counterfeiting film is inconsistent, when the electric push rod 16 is retracted, the slider 19 slides out from different guide grooves 27, and the zoned tensioning method is adapted to different tensioning degrees.

[0051] See also Figure 3 and Figure 4As shown, the stretching unit includes two upper and lower adjusting rollers 10, a dual-axis motor 21 is installed between the two adjusting rollers 10, a sliding cavity 22 is provided inside each adjusting roller 10, and a plurality of guide parts 24 communicating with the sliding cavity 22 are provided on the outer surface of the adjusting roller 10, a transmission screw 23 connected to the output end of the dual-axis motor 21 is provided inside the sliding cavity 22, and an adjusting plate 25 sliding along the track direction of the guide part 24 is sleeved on the outside of the transmission screw 23. When the transmission screw 23 in the adjusting roller 10 is subjected to the output power of the dual-axis motor 21, the adjusting plate 25 slides in a directional manner along the direction of the guide part 24. The adjusting plates 25 in the two groups of stretching units stretch and open the upper and lower surfaces of the anti-counterfeiting film and the express packaging film respectively, so that the stretching alignment effect is better and wrinkles are avoided.

[0052] See also Figure 1 As shown, the support plate 1 is composed of two vertical plates and are respectively arranged on the two side edges of the base plate. The two vertical plates are arranged in parallel. A raw material roller of the anti-counterfeiting film is installed on the vertical plate. An upper roller and a lower roller for conveying the express packaging film are arranged in sequence below the raw material roller. The lower roller is located directly below the transfer roller 4, and a guide roller is provided on the side of the laser marking head 7 away from the upper roller. When the express packaging film passes through the guide roller from the upper roller, the anti-counterfeiting label is laser marked in advance, and the anti-counterfeiting label is calibrated and tensioned by the deviation correction tensioning assembly to improve the uniformity of its bonding. After being aligned and pressed with the lower roller, the film enters the heat sealing chamber 5.

[0053] See also Figure 1 and Figure 6 As shown, the interior of the heat sealing chamber 5 is provided with a second pressing roller group 6 for pressing the express packaging film and the express packaging film bonded with the anti-counterfeiting film, and one side of the second pressing roller group 6 is provided with a sealing unit for sealing the edge of the anti-counterfeiting express film;

[0054] The sealing unit includes an upper moving plate 28 and a lower moving plate 29 that are close to or away from each other, the lower moving plate 29 is located below the upper moving plate 28, and the edges of the lower surface of the upper moving plate 28 and the upper surface of the lower moving plate 29 are correspondingly provided with heat sealing strips 32;

[0055] A plurality of cutters 30 are provided in the middle of the lower surface of the upper moving plate 28, a cutting seat 31 corresponding to the cutter 30 is elastically embedded in the upper surface of the lower moving plate 29, and a rectangular groove 34 is provided inside the lower moving plate 29, and a plurality of springs 35 are installed inside the rectangular groove 34, and one end of the plurality of springs 35 is commonly connected to a push seat movable in the rectangular groove 34, and a plurality of through holes 33 communicating with the rectangular groove 34 are provided on the upper surface of the lower moving plate 29, and the push seat is fixed to the plurality of cutters 31;

[0056] The second pressing roller group 6 aligns and presses the film on the transfer roller 4 with the express packaging film on the lower roller to form an anti-counterfeiting packaging bag, and then the upper moving plate 28 and the lower moving plate 29 move downward and upward respectively, and the cutter 30 cuts off the connection between the anti-counterfeiting packaging bags at intervals, and the two adjacent anti-counterfeiting packaging bags are still connected together. Due to the continuous movement of the upper moving plate 28 and the lower moving plate 29, the cutting seat 31 is subjected to external force and compresses the spring 35 downward to make it move in the rectangular groove 34. At this time, the heat sealing strips 32 on both sides are in contact to complete the sealing of the sides of the two adjacent anti-counterfeiting packaging bags. The anti-counterfeiting packaging bags produced in this way have continuity.

[0057] When the present invention is in use, according to the initial tension of the express packaging film and the anti-counterfeiting film, two deviation correction and tensioning components are set in two usage scenarios. In one case, the two sliding adjustment units are close to each other, that is, the sliding adjustment unit at the bottom moves upward, and the sliding adjustment unit at the top moves downward. In this process, the guide limit strip 9 slides along the inclined guide limit groove 8, and at the same time, the stretching unit unfolds the edges of the anti-counterfeiting film and the upper express packaging film. Since the stretching unit moves with the corresponding sliding adjustment unit, the corresponding anti-counterfeiting film and the express packaging film are tensioned, so that they are aligned when bonding, thereby improving the lamination quality; in another case, the upper guide limit strip 9 is driven to rotate counterclockwise through the engagement of the upper and lower sets of transmission parts with the corresponding side gears 17, while the lower guide limit strip 9 rotates clockwise, so as to tension the edges of the anti-counterfeiting film and the upper express packaging film. Since the initial tensions are inconsistent, the two sets of transmission parts are independently controlled, and a zoned tensioning method is adopted to adapt to different tensioning degrees;

[0058] Before the express packaging film is bonded to the anti-counterfeiting film, it is first laser-marked in sequence at the fixed positions conveyed by the laser marking head 7. The position of each marking is consistent, so that its production has a unified standard. It is rolled up by the transfer roller 4 of the upper group. After the rotating plate 2 rotates 180 degrees, the positions of the transfer roller 4 of the upper group and the transfer roller 4 of the lower group are changed, and the transfer roller 4 of the lower group repeats the rolling action, while the transfer roller 4 of the rolled anti-counterfeiting film continues to be pressed together with the express packaging film at the bottom. The upper and lower positions of the transfer roller 4 are conveniently switched by the rotating plate 2. The overall coordination of the device is higher. It is sealed by the heat sealing chamber 5 to have a containing space. The produced express bags are unique. Each bag has a unique anti-counterfeiting code, and the anti-counterfeiting code is covered on the inside of the anti-counterfeiting film, which effectively protects the label information from being tampered with or destroyed, thereby improving the anti-counterfeiting effect.

[0059] By setting up a stretching unit, when the transmission screw 23 in the adjusting roller 10 is powered by the output power of the dual-axis motor 21, the adjusting plate 25 slides in a directional manner along the direction of the guide portion 24. The adjusting plates 25 in the two groups of stretching units stretch and open the upper and lower surfaces of the anti-counterfeiting film and the express packaging film respectively, so that the stretching and alignment effect is better and wrinkles are avoided.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A coding and marking device for an anti-counterfeit label of a courier bag, comprising a support plate (1) mounted on a base plate, characterized in that: A rotating plate (2) is rotatably mounted on the inner wall surface of the supporting plate (1), and the surface of the rotating plate (2) is rotatably provided with upper and lower sets of transfer rollers (4), and the upper and lower sets of transfer rollers (4) are not used at the same time; A laser marking head (7), used for marking express packaging film, is installed on the support plate (1) and away from the edge of the rotating plate (2); A deviation correction and tensioning assembly is arranged on the inner wall surface of the support plate (1) and has two usage scenarios for correcting the express packaging film and the anti-counterfeiting film. A bidirectional screw (14) is installed on the horizontal plate at the top of the support plate (1); Two upper and lower guide limit grooves (8) are arranged on the support plate (1), and a guide limit strip (9) is slidably mounted inside the guide limit groove (8), a stretching unit is rotatably mounted on the surface of the guide limit strip (9), a pressing roller group (3) for pressing the express packaging film and the anti-counterfeiting film is installed between one side of the stretching unit and the transfer roller (4), and two upper and lower meshing transmission gears (17) are arranged on the outer side of the pressing roller group (3); A guide limit strip (9) in a use scenario deviation correction tensioning assembly is arranged obliquely, and a sliding adjustment unit that is threadably matched with a bidirectional screw rod (14) is installed on the outer side of the guide limit strip (9); In another usage scenario, the guide limit strip (9) in the deviation correction tensioning assembly is arranged in an arc shape, the guide limit strip (9) is cocentric with the pressing roller group (3), and a transmission member meshing with the gear (17) is installed on the outer side of the guide limit strip (9); An adjusting plate (25) for opening and unfolding the express packaging film and the anti-counterfeiting film outward is slidably provided on the surface of the stretching unit.

2. The courier bag anti-counterfeiting label inkjet marking device according to claim 1 is characterized in that: The sliding adjustment unit comprises a mounting seat (11) arranged on the outer side of a guide limit strip (9) of the inclined structure, a slide rail (13) is arranged on the outer side of the mounting seat (11), a sleeve block (12) is slidably arranged outside the slide rail (13), and the sleeve block (12) is threadedly sleeved with a bidirectional screw (14).

3. The courier bag anti-counterfeiting label inkjet marking device according to claim 1, characterized in that: The transmission member comprises a fixed block (15) arranged on the outer side of the guide limit strip (9) of the arc structure, an electric push rod (16) at one end of the fixed block (15), a fixed seat (18) being installed at the pushing end of the electric push rod (16), and a half gear (20) meshing with the gear (17) being installed inside the fixed seat (18).

4. The courier bag anti-counterfeiting label inkjet marking device according to claim 3, characterized in that: A slider (19) is installed on the surface of the fixing seat (18), and a guide groove (26) is provided on the surface of the support plate (1). A plurality of inclined guide grooves (27) are provided in the guide groove (26), and the guide groove (26) is coaxial with the gear (17) on the corresponding side. The guide groove (26) and the guide groove (27) are both slidably arranged with the slider (19).

5. The courier bag anti-counterfeiting label inkjet marking device according to claim 1, characterized in that: The stretching unit comprises two upper and lower adjusting rollers (10), a double-axis motor (21) is installed between the two adjusting rollers (10), a sliding cavity (22) is provided inside each adjusting roller (10), and a plurality of guide parts (24) communicating with the sliding cavity (22) are provided on the outer surface of the adjusting roller (10), a transmission screw (23) connected to the output end of the double-axis motor (21) is provided inside the sliding cavity (22), and an adjusting plate (25) sliding along the track direction of the guide part (24) is sleeved on the outside of the transmission screw (23).

6. The courier bag anti-counterfeiting label inkjet marking device according to claim 1, characterized in that: The support plate (1) is composed of two vertical plates and is respectively arranged on the two side edges of the base plate. The two vertical plates are arranged in parallel. A raw material roller of the anti-counterfeiting film is installed on the vertical plate. An upper roller and a lower roller for conveying the express packaging film are arranged in sequence below the raw material roller. The lower roller is located directly below the transfer roller (4). A guide roller is arranged on the side of the laser marking head (7) away from the upper roller.

7. The courier bag anti-counterfeiting label inkjet marking device according to claim 1, characterized in that: A heat sealing chamber (5) is arranged on one side of the support plate (1); The second pressing roller group (6) is arranged in the heat sealing chamber (5) and presses the express packaging film and the express packaging film bonded with the anti-counterfeiting film, and a sealing unit for sealing the edge of the anti-counterfeiting express film is provided on one side of the pressing roller group (6).

8. The device for spraying codes and marking anti-counterfeit labels for express bags according to claim 7, characterized in that: The sealing unit comprises an upper moving plate (28) and a lower moving plate (29) which are close to or far away from each other, the lower moving plate (29) is located below the upper moving plate (28), and the edges of the lower surface of the upper moving plate (28) and the upper surface of the lower moving plate (29) are correspondingly provided with heat sealing strips (32); A plurality of cutters (30) are provided in the middle of the lower surface of the upper moving plate (28), a cutting seat (31) corresponding to the cutter (30) is elastically embedded in the upper surface of the lower moving plate (29), and a rectangular groove (34) is provided inside the lower moving plate (29), a plurality of springs (35) are installed inside the rectangular groove (34), one end of the plurality of springs (35) is commonly connected to a push seat movable in the rectangular groove (34), a plurality of through holes (33) communicating with the rectangular groove (34) are provided on the upper surface of the lower moving plate (29), and the push seat is fixed to the plurality of cutters (31).

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