Packaging bag reprinting device

Abstract

The utility model discloses a packaging bag reprinting device, comprising a base and a pad, a limiting unit for fixing the packaging bag is arranged above the pad, the limiting unit comprises a pressing frame adapted to the pad, a support frame is fixedly installed on the side of the pressing frame, a sleeve column is sleeved on the lower side of the support frame, a compression spring is fixedly installed between the inner wall of the sleeve column and the support frame, a first magnetic block is fixedly installed on the bottom of the support frame, and a second magnetic block is fixedly installed on the bottom of the inner wall of the sleeve column. The printing mechanism drives the pressing frame to move downward and contact the packaging bag on the pad, and under the drive of the pressing frame, the packaging bag on the outer side of the pad will be squeezed and fitted to the peripheral side of the pad by the pressing frame, and at the same time, the pressing frame gradually moves downward, and under the mutual friction between the pressing frame and the packaging bag, the packaging bag on the upper side of the pad will stretch out, and the wrinkles on the surface of the packaging bag on the upper side of the pad will gradually be smoothed, which is convenient for the printing plate to print the packaging bag, thereby facilitating the fixing of the packaging bag and reducing the operation steps.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a packaging bag reprinting device. Background Art

[0002] Packaging bags are one of the essential daily necessities in people's daily life. With the continuous improvement of people's material living standards, people's demand for packaging bags is also growing. In order to increase the surface aesthetics and the recognition of trademarks or related patterns, it is often necessary to print corresponding patterns or texts on the surface of plastic packaging bags.

[0003] However, in the printing of existing packaging bags, sometimes there will be a situation of missing printing. To deal with this situation, a Chinese patent (patent number CN213830584U) discloses a plastic packaging bag reprinting device, including a bracket, a printing module and a positioning and fixing module are connected to the bracket, and the printing module is located above the positioning and fixing module; the positioning and fixing module includes a support plate and a plurality of pressing blocks, the support plate is inlaid with an iron plate, and the bottom surface of the pressing block is inlaid with a magnetic sheet, and the plurality of pressing blocks are adsorbed on the support plate through the magnetic sheet. The utility model uses the positioning and fixing module to fix the plastic packaging bag and prints through the printing module, and can reprint the plastic packaging bags that are missing or poorly printed to avoid waste.

[0004] However, the above utility model mainly fixes the packaging bag by multiple pressing blocks, and the fixing method is to move the pressing blocks to the corresponding positions and fix the packaging bag by scattered pressing blocks. This not only requires multiple placement of pressing blocks, which is cumbersome, but also the scattered pressing blocks are easy to be lost. Utility Model Content

[0005] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the utility model is to provide a packaging bag reprinting device, which is convenient for fixing the packaging bag and reduces the operation steps.

[0006] To achieve the above object, the utility model provides the following technical solution: a packaging bag reprinting device, comprising a base, a printing mechanism and a positioning mechanism are installed on the base, the printing mechanism is located above the positioning mechanism, and the positioning mechanism includes a pad, and a limiting unit for fixing the packaging bag is arranged above the pad;

[0007] The limiting unit includes a pressure frame adapted to the pad, a support frame is fixedly installed on the side of the pressure frame, a sleeve column is sleeved on the lower side of the support frame, a compression spring is fixedly installed between the inner wall of the sleeve column and the support frame, a first magnetic block is fixedly installed on the bottom of the support frame, and a second magnetic block is fixedly installed on the bottom of the inner wall of the sleeve column. The magnetic poles of the opposite surfaces of the first magnetic block and the second magnetic block are different. In the initial state, the pressure frame is located above the pad, and when the pressure frame is sleeved on the outside of the pad, the first magnetic block and the second magnetic block fit each other.

[0008] Furthermore, there are four support frames, which are respectively arranged on both sides of the pressure frame.

[0009] Furthermore, the printing mechanism includes a top plate fixedly mounted on the base, a printing plate is mounted on the lower side of the top plate, and a driving member for driving the printing plate to move in a vertical direction is mounted on the top plate.

[0010] Furthermore, an ink pad box is fixedly mounted on the side of the pad, a slide rail is mounted on the base, and the pad is slidably mounted on the slide rail.

[0011] Furthermore, a threaded rod is installed on the upper side of the base, the axial direction of the threaded rod is parallel to the moving direction of the pad, a motor for driving the threaded rod to rotate is installed on the base, a connecting plate is fixedly installed on one side of the pad, and a threaded hole is opened on the connecting plate to cooperate with the thread of the threaded rod.

[0012] Furthermore, a heater is installed on the side of the printing plate, and when the pad is located directly above the ink box, the heater is located directly above the pad.

[0013] Furthermore, a third magnetic block is fixedly installed on the side of the heater, and a fourth magnetic block compatible with the third magnetic block is fixedly installed on the upper side of the support frame. The magnetic poles of the opposing surfaces of the third magnetic block and the fourth magnetic block are different. When the heater contacts the pad, the third magnetic block contacts the fourth magnetic block.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the printing mechanism drives the pressure frame to move downward and contact the packaging bag on the pad. Because the pressure frame can be matched with the pad and can be sleeved on the outside of the pad, when the pressure frame is sleeved on the outside of the pad, the gap between the pressure frame and the pad is smaller. Driven by the pressure frame, the packaging bag on the outside of the pad will be squeezed by the pressure frame to fit the side surface of the pad. At the same time, the pressure frame gradually moves downward. Under the mutual friction between the pressure frame and the packaging bag, the packaging bag on the upper side of the pad will stretch out, and the wrinkles on the surface of the packaging bag on the upper side of the pad will gradually be smoothed out, which is convenient for the printing of the packaging bag by the printing plate, thereby facilitating the fixing of the packaging bag and reducing the number of operating steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first perspective view of the overall structure of the utility model;

[0016] Figure 2 This is a second viewing angle diagram of the overall structure of the utility model;

[0017] Figure 3 This is a third perspective view of the overall structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the support frame and sleeve column structure of the utility model.

[0019] In the figure: 1. base; 2. printing mechanism; 21. top plate; 22. printing plate; 23. driving member; 3. positioning mechanism; 31. pad; 32. limit unit; 33. pressure frame; 34. support frame; 35. sleeve column; 36. compression spring; 37. first magnetic block; 38. second magnetic block; 4. threaded rod; 5. motor; 6. connecting plate; 7. threaded hole; 8. ink box; 9. slide rail; 10. heater; 11. third magnetic block; 12. fourth magnetic block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 and Figure 2 The present embodiment provides a packaging bag reprinting device, which includes a base 1, on which a printing mechanism 2 and a positioning mechanism 3 are installed, and the printing mechanism 2 is located above the positioning mechanism 3. The packaging bag to be processed is positioned and fixed by the positioning mechanism 3, and then a logo is printed on the surface of the packaging bag by the printing mechanism 2.

[0022] Specifically, the positioning mechanism 3 includes a pad 31, and a limiting unit 32 for fixing the packaging bag is arranged above the pad 31. The packaging bag is placed on the pad 31, and the limiting unit 32 is used to fix the packaging bag.

[0023] See also Figure 1 and Figure 2 , wherein the printing mechanism 2 includes a top plate 21 fixedly mounted on the base 1, a printing plate 22 is mounted on the lower side of the top plate 21, and a driving member 23 for driving the printing plate 22 to move in the vertical direction is mounted on the top plate 21. After the packaging bag is mounted on the pad 31 through the limiting unit 32, the driving member 23 drives the printing plate 22 to move downward, so that the printing plate 22 presses the packaging bag on the pad 31, and the printing plate 22 and the pad 31 are squeezed against each other, so that the oil on the printing plate 22 is printed on the packaging bag.

[0024] See also Figure 1 , Figure 3 and Figure 4 The limiting unit 32 includes a pressing frame 33 adapted to the pad 31, a support frame 34 is fixedly installed on the side of the pressing frame 33, a sleeve column 35 is sleeved on the lower side of the support frame 34, a compression spring 36 is fixedly installed between the inner wall of the sleeve column 35 and the support frame 34, a first magnetic block 37 is fixedly installed on the bottom of the support frame 34, and a second magnetic block 38 is fixedly installed on the bottom of the inner wall of the sleeve column 35. The opposite magnetic poles of the first magnetic block 37 and the second magnetic block 38 are different. In the initial state, the pressing frame 33 is located above the pad 31. When the pressing frame 33 is sleeved on the outside of the pad 31, the first magnetic block 37 and the second magnetic block 38 fit each other.

[0025] At the beginning, the pressing frame 33 is located on the upper side of the pad 31, and the packaging bag to be processed is placed on the pad 31. Then, the driving member 23 drives the printing plate 22 to move downward, and the printing plate 22 first contacts the pressing frame 33. The pressing frame 33 moves downward and contacts the packaging bag on the pad 31. Because the pressing frame 33 can be adapted to the pad 31 and can be sleeved on the outside of the pad 31, when the pressing frame 33 is sleeved on the outside of the pad 31, the gap between the pressing frame 33 and the pad 31 is small. Driven by the pressing frame 33, the packaging bag on the outside of the pad 31 will be pressed by the pressing frame 33 to fit the side surface of the pad 31.

[0026] At the same time, the pressing frame 33 gradually moves downward. Under the mutual friction between the pressing frame 33 and the packaging bag, the packaging bag on the upper side of the pad 31 will stretch out, and the wrinkles on the surface of the packaging bag on the upper side of the pad 31 will gradually be smoothed, which is convenient for the printing plate 22 to print the packaging bag. When the pressing frame 33 descends and drives the first magnetic block 37 on the support frame 34 to contact the second magnetic block 38, the printing plate 22 also happens to print the packaging bag. At this time, the first magnetic block 37 and the second magnetic block 38 are magnetically attracted to each other, so that the pressing frame 33 is positioned and cannot be easily moved. Therefore, after the printing plate 22 moves upward, the pressing frame 33 continues to restrict the packaging bag, reducing the situation where the packaging bag adheres to the printing plate 22 and moves with the printing plate 22.

[0027] See also Figure 1 In order to improve the stability of the pressing frame 33 when it moves, there are four support frames 34, which are respectively arranged on both sides of the pressing frame 33. By arranging the support frames 34 opposite to each other, the stability of the pressing frame 33 when it moves is maintained.

[0028] See also Figure 1 and Figure 2, in order to facilitate the replenishment of ink pad to the printing plate 22. An ink pad box 8 is fixedly installed on the side of the pad 31, and a slide rail 9 is installed on the base 1, and the pad 31 is slidably arranged on the slide rail 9. By sliding the pad 31, the position of the pad 31 and the ink pad box 8 below the printing plate 22 is adjusted, so that when the printing plate 22 moves downward, the packaging bag can be printed or the surface ink pad can be replenished.

[0029] See also Figure 1 and Figure 3 A threaded rod 4 is installed on the upper side of the base 1, and the axial direction of the threaded rod 4 is parallel to the moving direction of the pad 31. A motor 5 is installed on the base 1 to drive the threaded rod 4 to rotate. A connecting plate 6 is fixedly installed on one side of the pad 31, and a threaded hole 7 is opened on the connecting plate 6 to match the thread of the threaded rod 4. The threaded rod 4 is driven to rotate by the motor 5, and the threaded rod 4 drives the connecting plate 6 to move along the axis of the threaded rod 4, thereby driving the pad 31 to move, thereby adjusting the position of the pad 31.

[0030] The printed mark on the packaging bag needs to be dried before it can be used. To speed up the drying efficiency, a heater 10 is installed on the side of the printing plate 22. When the pad 31 is located directly above the ink box 8, the heater 10 is located directly above the pad 31. The packaging bag on the pad 31 is dried by the heater 10, which speeds up the drying efficiency of the printed mark.

[0031] See also Figure 1 , Figure 2 and Figure 3 When the printing plate 22 presses the pressing frame 33 downward to make the first magnetic block 37 and the second magnetic block 38 magnetically attracted to each other, the pressing frame 33 is restored to its original position after being dried by the heater 10. A third magnetic block 11 is fixedly mounted on the side of the heater 10, and a fourth magnetic block 12 adapted to the third magnetic block 11 is fixedly mounted on the upper side of the support frame 34. The third magnetic block 11 and the fourth magnetic block 12 have different magnetic poles on opposite surfaces. When the heater 10 contacts the backing plate 31, the third magnetic block 11 contacts the fourth magnetic block 12.

[0032] The heater 10 moves downward, thereby driving the third magnetic block 11 to contact the fourth magnetic block 12. At this time, the suction force of the third magnetic block 11 and the fourth magnetic block 12 and the elastic force of the compression spring 36 are greater than the suction force of the first magnetic block 37 and the second magnetic block 38. Therefore, when the heater 10 moves upward, the magnetic attraction of the third magnetic block 11 and the fourth magnetic block drives the pressure frame 33 to move upward together, so that the pressure frame 33 moves to the initial position. There is no need for manual operation to move the pressure frame 33, which reduces the operating steps and speeds up the processing efficiency.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A packaging bag reprinting device, comprising a base (1), a printing mechanism (2) and a positioning mechanism (3) being mounted on the base (1), the printing mechanism (2) being located above the positioning mechanism (3), characterized in that: The positioning mechanism (3) comprises a backing plate (31), and a limiting unit (32) for fixing the packaging bag is arranged above the backing plate (31); The limiting unit (32) comprises a pressing frame (33) adapted to the pad (31); a support frame (34) is fixedly mounted on the side of the pressing frame (33); a sleeve column (35) is sleeved on the lower side of the support frame (34); a compression spring (36) is fixedly mounted between the inner wall of the sleeve column (35) and the support frame (34); a first magnetic block (37) is fixedly mounted on the bottom of the support frame (34); a second magnetic block (38) is fixedly mounted on the bottom of the inner wall of the sleeve column (35); the first magnetic block (37) and the second magnetic block (38) have different magnetic poles on opposite surfaces; in an initial state, the pressing frame (33) is located above the pad (31); when the pressing frame (33) is sleeved on the outer side of the pad (31), the first magnetic block (37) and the second magnetic block (38) fit each other.

2. The packaging bag reprinting device according to claim 1, characterized in that: There are four support frames (34), which are respectively arranged on both sides of the pressing frame (33).

3. The packaging bag reprinting device according to claim 1, characterized in that: The printing mechanism (2) comprises a top plate (21) fixedly mounted on the base (1), a printing plate (22) being mounted on the lower side of the top plate (21), and a driving member (23) for driving the printing plate (22) to move in a vertical direction being mounted on the top plate (21).

4. The packaging bag reprinting device according to claim 3, characterized in that: An ink pad box (8) is fixedly mounted on the side of the pad (31), a slide rail (9) is mounted on the base (1), and the pad (31) is slidably mounted on the slide rail (9).

5. The packaging bag reprinting device according to claim 4, characterized in that: A threaded rod (4) is mounted on the upper side of the base (1), the axial direction of the threaded rod (4) being parallel to the moving direction of the pad (31), a motor (5) for driving the threaded rod (4) to rotate is mounted on the base (1), a connecting plate (6) is fixedly mounted on one side of the pad (31), and a threaded hole (7) is provided on the connecting plate (6) for threadably matching the threaded rod (4).

6. The packaging bag reprinting device according to claim 5, characterized in that: A heater (10) is installed on the side of the printing plate (22); when the backing plate (31) is located directly above the ink box (8), the heater (10) is located directly above the backing plate (31).

7. The packaging bag reprinting device according to claim 6, characterized in that: A third magnetic block (11) is fixedly mounted on the side of the heater (10), and a fourth magnetic block (12) matched with the third magnetic block (11) is fixedly mounted on the upper side of the support frame (34). The third magnetic block (11) and the fourth magnetic block (12) have different magnetic poles on opposite surfaces. When the heater (10) contacts the pad (31), the third magnetic block (11) contacts the fourth magnetic block (12).

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