A packaging color box surface printing process

Abstract

The application relates to the technical field of packaging boxes, in particular to a packaging color box surface printing process, which comprises a feeding process, a printing process and a discharging process. In the feeding process, a clamp is used to send the packaging box to the position of a transfer roller on a printing equipment rack. In the printing process, a color printing pattern on a transfer paper is transferred to the outer side wall of the packaging box through the transfer roller on the printing equipment rack. In the discharging process, the clamp is used to send the packaging box to the discharging position for discharging. The clamp composed of a main shaft, a mounting column and a clamping plate supports and clamps the inner side wall of the packaging box, so that the packaging box can stably abut against the side wall of the transfer roller in the printing process, the transfer effect is effectively guaranteed, and the printing forming effect of the color box surface is guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of packaging boxes, specifically to a surface printing process for color packaging boxes. Background Technology

[0002] Packaging boxes, as the name suggests, are boxes used to package products. They can be classified according to the materials used to make them: paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes, PVC boxes, etc.

[0003] Packaging boxes serve various functions, including ensuring product safety during transportation and enhancing product quality. As consumers increasingly value product appearance, various packaging boxes undergo color printing to maintain their overall aesthetic appeal. However, in traditional printing processes, printing on the sidewalls of cylindrical packaging boxes often results in insufficient strength of the cylindrical sidewalls, leading to relatively low stress between the printing roller and the sidewalls. This negatively impacts the adhesion stability of the color printing on the packaging box surface. Therefore, this invention proposes a packaging box surface printing process to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a printing process for the surface of packaging boxes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a surface printing process for packaging color boxes, the surface printing process for packaging color boxes comprising:

[0006] During the feeding process, the packaging box is delivered to the transfer roller position on the printing equipment frame by a clamp;

[0007] During the printing process, the color-printed pattern on the transfer paper is transferred to the outer wall of the packaging box by the transfer roller on the printing equipment frame.

[0008] During the unloading process, the packaging box is delivered to the unloading position by a clamp.

[0009] Preferably, the fixture is composed of a main shaft, a mounting column and a clamping plate. The mounting column is a cylindrical structure and the end face of the mounting column is integrally formed with a mounting tube. The mounting tube is rotatably mounted on the mounting seat through a bearing. The mounting seat is fixed on the track trolley and the track trolley travels on a circular guide rail.

[0010] Preferably, the transfer roller is rotatably mounted on the printing equipment frame via a primary rotating shaft. A secondary rotating shaft is rotatably mounted on the printing equipment frame. A transmission gear is fixedly mounted at the end of the secondary rotating shaft, and a driven gear is fixedly mounted at the end of the mounting column. When the packaging box is delivered to the position of the transfer roller, the transmission gear and the driven gear mesh. The primary rotating shaft is driven by a primary drive motor on the printing equipment frame, and the secondary rotating shaft is driven by a secondary drive motor on the printing equipment frame. In actual operation, the linear velocity of the outer wall of the packaging box matches the linear velocity of the side wall of the transfer roller.

[0011] Preferably, the mounting column has a mounting cavity, the side wall of the mounting cavity has a guide rod hole, and the bottom surface of the mounting cavity has a spindle hole. The spindle is movably mounted in the spindle hole and passes through the mounting tube. The inner end of the spindle has an integrally formed force-bearing seat, the inner end of the force-bearing seat has a spring groove, and a support spring is installed in the spring groove. The inner side wall of the mounting cavity has an integrally formed annular seat, and a support plate is fixedly mounted on the annular seat by a positioning screw.

[0012] Preferably, the clamping plate is an arc-shaped plate, and a guide rod is fixedly welded to the inner side wall of the clamping plate. The guide rod is movably installed in the guide rod hole, and a top post is integrally formed at the end of the guide rod. The end of the guide rod has an external thread structure, and a limit nut is screwed onto the end of the guide rod. A return spring is sleeved on the guide rod. The two ends of the return spring abut against the limit nut and the side wall of the mounting cavity, respectively. When the return spring is in the return state, the clamping plate is in contact with the outer side wall of the mounting post.

[0013] Preferably, the inner diameter of the force-bearing seat is smaller than the outer diameter. The guide rods are arranged in a row at equal intervals on the clamping plate, and the length of the top posts on the guide rods increases sequentially from the outer to the inner side. The ends of all the top posts are abutted against the outer wall of the force-bearing seat. The clamping plate is arranged in a circle around the mounting post. When the force-bearing seat is pushed inward, the clamping plate moves outward, and at this time, the outer walls of all the clamping plates abut against the inner wall of the packaging box.

[0014] Preferably, a guide rod is integrally formed on the support plate, the guide rod is movably disposed in the spring groove on the force-bearing seat, and the support spring is abutted against the guide rod. When the support spring is in the reset state, the inner side wall of the clamping plate is in contact with the outer side wall of the mounting column.

[0015] Preferably, a connecting bracket is fixedly installed on the frame of the printing equipment, and a guide plate is fixedly welded to the connecting bracket. When the main shaft slides along the guide plate to abut against the connecting bracket, the transmission gear meshes with the driven gear, and at this time the force seat pushes inward and drives the clamping plate to move outward and press against the inner wall of the packaging box.

[0016] Preferably, an anti-slip plate is fixedly glued to the outer wall of the clamping plate, and the anti-slip plate is a flexible rubber plate.

[0017] Preferably, the outer side wall of the anti-slip plate is provided with anti-slip grooves, the anti-slip grooves are hemispherical groove structures, and multiple sets of anti-slip grooves are evenly provided on the outer side wall of the anti-slip plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By setting up a fixture consisting of a main shaft, mounting column and clamping plate to support and clamp the inner wall of the packaging box, the packaging box can be stably pressed against the side wall of the transfer roller during the printing process, thereby effectively ensuring the transfer effect and the printing and forming effect on the surface of the color box.

[0020] 2. By setting a force-bearing seat on the inner end of the main shaft, and by setting a connecting bracket on the printing equipment frame, and fixing and welding a guide plate on the connecting bracket, the main shaft is forced to move inward through the guiding action of the guide plate, thereby driving the force-bearing seat to move inward, and thus the clamping plate is moved outward through the force of the top column, thereby automatically completing the clamping of the packaging box, thus effectively optimizing the drive structure of the fixture and facilitating the daily maintenance of the staff. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the fixture structure of the present invention;

[0024] Figure 4 This is a half-sectional view of the fixture of the present invention;

[0025] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0026] Figure 6 This is a schematic diagram of the clamping plate structure of the present invention;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point C.

[0028] In the diagram: 1. Fixture; 2. Printing equipment frame; 3. Primary rotating shaft; 4. Transfer roller; 5. Secondary rotating shaft; 6. Transmission gear; 7. Connecting bracket; 8. Guide plate; 9. Mounting seat; 10. Main shaft; 11. Mounting column; 12. Clamping plate; 13. Packaging box; 14. Driven gear; 15. Mounting cavity; 16. Guide rod; 17. Return spring; 18. Limit nut; 19. Top column; 20. Ring seat; 21. Support plate; 22. Support spring; 23. Guide rod; 24. Mounting tube; 26. Force-bearing seat; 27. Anti-slip plate; 28. Anti-slip groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-7 The present invention provides the following three preferred embodiments.

[0031] Example 1

[0032] A packaging box surface printing process includes a feeding process, a printing process, and a unloading process. During the feeding process, the packaging box 13 is sent to the position of the transfer roller 4 on the printing equipment frame 2 by a clamp 1. During the printing process, the color printing pattern on the transfer paper is transferred to the outer wall of the packaging box 13 by the transfer roller 4 on the printing equipment frame 2. During the unloading process, the packaging box 13 is sent to the unloading position by the clamp 1. The clamp 1 is composed of a main shaft 10, a mounting column 11, and a clamping plate 12. The mounting column 11 is a cylindrical structure, and the end face of the mounting column 11 is integrally formed with a mounting tube 24. The mounting tube 24 is rotatably mounted on the mounting seat 9 by a bearing. The mounting seat 9 is fixed on a track trolley, and the track trolley travels on a circular guide rail.

[0033] The transfer roller 4 is rotatably mounted on the printing equipment frame 2 via a primary rotating shaft 3. A secondary rotating shaft 5 is rotatably mounted on the printing equipment frame 2. A transmission gear 6 is fixedly mounted at the end of the secondary rotating shaft 5, and a driven gear 14 is fixedly mounted at the end of the mounting column 11. When the packaging box 13 is delivered to the position of the transfer roller 4, the transmission gear 6 and the driven gear 14 mesh. The primary rotating shaft 3 is driven by a primary drive motor on the printing equipment frame 2, and the secondary rotating shaft 5 is driven by a secondary drive motor on the printing equipment frame 2. In actual operation, the linear velocity of the outer wall of the packaging box 13 matches the linear velocity of the side wall of the transfer roller 4. By setting a clamp 1 composed of a main shaft 10, a mounting column 11, and a clamping plate 12, the inner side wall of the packaging box 13 is supported and clamped, thereby ensuring that the packaging box 13 can stably approach the side wall of the transfer roller 4 during the printing process, thus effectively ensuring the transfer effect and the printing and forming effect of the color box surface.

[0034] Example 2

[0035] Based on Embodiment 1, the mounting column 11 has a mounting cavity 15, the side wall of the mounting cavity 15 has a guide rod hole, and the bottom surface of the mounting cavity 15 has a spindle hole. The spindle 10 is movably installed in the spindle hole and passes through the mounting tube 24. A force-bearing seat 26 is integrally formed on the inner end of the spindle 10. A spring groove is formed on the inner end of the force-bearing seat 26, and a support spring 22 is installed in the spring groove. An annular seat 20 is integrally formed on the inner wall of the mounting cavity 15, and a support plate 21 is fixedly installed on the annular seat 20 by positioning screws. The clamping plate 12 is an arc-shaped plate, and a guide rod 16 is fixedly welded to the inner side wall of the clamping plate 12. The guide rod 16 is movably installed in the guide rod hole, and a top post 19 is integrally formed at the end of the guide rod 16. The end of the guide rod 16 has an external thread structure, and a limit nut 18 is screwed onto the end of the guide rod 16. A return spring 17 is sleeved on the guide rod 16. The two ends of the return spring 17 abut against the limit nut 18 and the side wall of the mounting cavity 15, respectively. When the return spring 17 is in the reset state, the clamping plate 12 is in contact with the outer side wall of the mounting post 11.

[0036] The inner diameter of the force-bearing seat 26 is smaller than the outer diameter. A row of guide rods 16 are evenly spaced on the clamping plate 12, and the length of the top posts 19 on the guide rods 16 increases sequentially from the outer to the inner side. The ends of all the top posts 19 are abutted against the outer wall of the force-bearing seat 26. The clamping plate 12 is arranged in a circle around the mounting post 11. When the force-bearing seat 26 is pushed inward, the clamping plate 12 moves outward. At this time, the outer walls of all the clamping plates 12 are abutted against the inner wall of the packaging box 13. A guide rod 23 is integrally formed on the support plate 21. The guide rod 23 is movably arranged in the spring groove on the force-bearing seat 26, and the support spring 22 abuts against the guide rod 23. When the support spring 22 is in the reset state, the inner wall of the clamping plate 12 abuts against the outer wall of the mounting post 11.

[0037] A connecting bracket 7 is fixedly installed on the printing equipment frame 2. A guide plate 8 is fixedly welded to the connecting bracket 7. When the main shaft 10 slides along the guide plate 8 and abuts against the connecting bracket 7, the transmission gear 6 meshes with the driven gear 14. At this time, the force-bearing seat 26 pushes inward and drives the clamping plate 12 to move outward and press against the inner wall of the packaging box 13. By setting the force-bearing seat 26 on the inner end of the main shaft 10, and by setting the connecting bracket 7 on the printing equipment frame 2, and fixing and welding the guide plate 8 on the connecting bracket 7, the main shaft 10 is forced to move inward through the guiding action of the guide plate 8, thereby driving the force-bearing seat 26 to move inward. This causes the clamping plate 12 to move outward through the force-bearing column 19, thereby automatically completing the clamping of the packaging box 13. This effectively optimizes the drive structure of the fixture 1 and facilitates the daily maintenance of the fixture by the staff.

[0038] Example 3

[0039] Based on Embodiment 2, an anti-slip plate 27 is fixedly glued to the outer wall of the clamping plate 12. The anti-slip plate 27 is a flexible rubber plate, and an anti-slip groove 28 is provided on the outer wall of the anti-slip plate 27. The anti-slip groove 28 has a hemispherical groove structure, and multiple sets of anti-slip grooves 28 are evenly provided on the outer wall of the anti-slip plate 27. By setting the anti-slip plate 27 and the anti-slip groove 28, the positioning stability of the packaging box 13 is further improved.

[0040] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A printing process for the surface of a packaging color box, characterized in that: The surface printing process of the packaging box includes: During the feeding process, the packaging box (13) is sent to the position of the transfer roller (4) on the frame (2) of the printing equipment by means of the clamp (1); During the printing process, the color pattern on the transfer paper is transferred to the outer wall of the packaging box (13) by the transfer roller (4) on the printing equipment frame (2); During the unloading process, the packaging box (13) is sent to the unloading position by the clamp (1) for unloading; The clamp (1) is composed of a main shaft (10), a mounting column (11) and a clamping plate (12). The mounting column (11) is a cylindrical structure, and the end face of the mounting column (11) is integrally formed with a mounting tube (24). The mounting tube (24) is rotatably mounted on the mounting seat (9) through a bearing. The mounting seat (9) is fixed on the track trolley, and the track trolley travels on a circular guide rail. The transfer roller (4) is rotatably mounted on the printing equipment frame (2) via a primary shaft (3). A secondary shaft (5) is rotatably mounted on the printing equipment frame (2). A transmission gear (6) is fixedly mounted at the end of the secondary shaft (5). A driven gear (14) is fixedly mounted at the end of the mounting column (11). When the packaging box (13) is delivered to the position of the transfer roller (4), the transmission gear (6) and the driven gear (14) mesh. The primary shaft (3) is driven by a primary drive motor on the printing equipment frame (2). The secondary shaft (5) is driven by a secondary drive motor on the printing equipment frame (2). In actual operation, the linear velocity of the outer wall of the packaging box (13) matches the linear velocity of the side wall of the transfer roller (4). The mounting column (11) has a mounting cavity (15), the side wall of the mounting cavity (15) has a guide rod hole, and the bottom surface of the mounting cavity (15) has a spindle hole. The spindle (10) is movably installed in the spindle hole and passes through the mounting tube (24). The inner end of the spindle (10) is integrally formed with a force-bearing seat (26), the inner end of the force-bearing seat (26) has a spring groove, and a support spring (22) is installed in the spring groove. The inner wall of the mounting cavity (15) is integrally formed with an annular seat (20), and a support plate (21) is fixedly installed on the annular seat (20) by a positioning screw.

2. The surface printing process for a packaging color box according to claim 1, characterized in that: The clamping plate (12) is an arc-shaped plate, and a guide rod (16) is fixedly welded on the inner side wall of the clamping plate (12). The guide rod (16) is movably installed in the guide rod hole, and a top post (19) is integrally formed at the end of the guide rod (16). The end of the guide rod (16) is provided with an external thread structure, and a limit nut (18) is screwed onto the end of the guide rod (16). A reset spring (17) is sleeved on the guide rod (16). The two ends of the reset spring (17) are respectively abutted against the limit nut (18) and the side wall of the mounting cavity (15). When the reset spring (17) is in the reset state, the clamping plate (12) is close to the outer side wall of the mounting post (11).

3. The surface printing process for a packaging color box according to claim 2, characterized in that: The inner diameter of the force-bearing seat (26) is smaller than the outer diameter. The guide rod (16) is arranged in a row at equal intervals on the clamping plate (12). The length of the top column (19) on the guide rod (16) increases sequentially from the outer to the inner side. The ends of all the top columns (19) are abutted against the outer wall of the force-bearing seat (26). The clamping plate (12) is arranged in a circle around the mounting column (11). When the force-bearing seat (26) is pushed inward, the clamping plate (12) moves outward. At this time, the outer walls of all the clamping plates (12) abut against the inner wall of the packaging box (13).

4. The surface printing process for a packaging color box according to claim 3, characterized in that: The support plate (21) has an integrally formed guide rod (23), which is movably disposed in the spring groove on the force seat (26). The support spring (22) is abutted against the guide rod (23). When the support spring (22) is in the reset state, the inner wall of the clamping plate (12) is close to the outer wall of the mounting column (11).

5. The surface printing process for a packaging color box according to claim 4, characterized in that: A connecting bracket (7) is fixedly installed on the printing equipment frame (2). A guide plate (8) is fixedly welded to the connecting bracket (7). When the main shaft (10) slides along the guide plate (8) to abut against the connecting bracket (7), the transmission gear (6) meshes with the driven gear (14). At this time, the force seat (26) pushes inward and drives the clamping plate (12) to move outward and press against the inner wall of the packaging box (13).

6. The surface printing process for a packaging color box according to claim 5, characterized in that: An anti-slip plate (27) is fixedly glued to the outer side wall of the clamping plate (12), and the anti-slip plate (27) is a flexible rubber plate.

7. The surface printing process for a packaging color box according to claim 6, characterized in that: The anti-slip plate (27) has an anti-slip groove (28) on its outer side wall. The anti-slip groove (28) is a hemispherical groove structure, and multiple sets of anti-slip grooves (28) are evenly provided on the outer side wall of the anti-slip plate (27).

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