A printing device and a printing method for carton production

Abstract

A printing device for carton production, comprising a workbench (1) for supporting, a conveying mechanism (2) for automatically conveying cartons is arranged on the workbench (1), a placing mechanism (3) for placing cartons is detachably installed on the conveying mechanism (2), a printing mechanism (4) for printing cartons is arranged on the workbench (1), an ink adding mechanism (5) for automatically adding ink to the printing mechanism (4) is arranged on the printing mechanism (4) and is driven by the printing mechanism (4), a stabilizing mechanism (6) for stabilizing the connection between the placing mechanism (3) and the conveying mechanism (2) is arranged on the printing mechanism (4), the stabilizing mechanism (6) is connected with the ink adding mechanism (5) and can automatically add ink, so that the work can be stopped when adding ink is avoided, time is saved, and work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of printing technology, specifically to a printing apparatus for the production of cardboard boxes. Background Technology

[0002] With rapid economic development, people's purchases of goods have gradually increased. Currently, most goods are packaged and transported in cardboard boxes to save costs and increase aesthetics. These cardboard boxes often need to be printed before packaging to distinguish different kinds of goods. At present, some cardboard box production printing equipment needs to be stopped to add ink during printing, which not only consumes manpower but also has low work efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a printing apparatus for cardboard box production to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a printing apparatus for producing cartons, comprising a work frame for support, a transport mechanism for automatically transporting cartons on the work frame, a placement mechanism for placing cartons detachably mounted on the transport mechanism, a printing mechanism for printing on cartons on the work frame, an ink-adding mechanism for automatically adding ink to the printing mechanism, the ink-adding mechanism being driven by the printing mechanism, and a stabilizing mechanism connected to the transport mechanism on the printing mechanism, the stabilizing mechanism being connected to the ink-adding mechanism.

[0005] Optionally, the transport mechanism includes a motor fixedly mounted on a work frame, the output end of the motor penetrating the inner wall of the work frame, a second drive roller mounted on the output end of the motor, a first drive roller rotatably mounted on one side of the work frame, and a chain meshing with the outer side of the motor, and the chain meshing with the first drive roller.

[0006] Optionally, the placement mechanism includes a placement plate for placing cartons, and the placement mechanism also includes a mounting plate mounted on a chain. A connecting rod is installed through the placement plate, and a spherical block is fixedly installed at one end of the connecting rod near the mounting plate. The spherical block is inserted into the mounting plate.

[0007] Optionally, the printing mechanism includes a first support frame fixedly connected to the work frame, a second support frame fixedly installed on one side of the first support frame, a hydraulic rod fixedly installed on the top surface of the second support frame, the output end of the hydraulic rod penetrating through the inner wall of the second support frame, a connecting plate fixedly installed on the output end of the hydraulic rod, and a printing head for printing on cartons fixedly installed on the end of the connecting plate away from the output end of the hydraulic rod.

[0008] Optionally, the ink-filling mechanism includes a fixed shaft rotatably mounted on one side of the first support frame, a movable rod fixedly mounted on the surface of the fixed shaft, and a protrusion integrally mounted on one end of the movable rod connected to the fixed shaft.

[0009] Optionally, the movable rod has a second limiting groove at the end away from the fixed shaft, the ink filling mechanism also includes a connecting shaft fixedly connected to the connecting plate, the connecting shaft moves inside the second limiting groove, and the surface of the connecting plate at the end where the printing head is installed has a movable groove for the movable rod to move, and one side of the first support frame and the second support frame both have a first limiting groove for the movable rod to move.

[0010] Optionally, the ink-adding mechanism further includes a telescopic spring fixedly installed on one side of the first support frame, and a second push plate fixedly installed on the other end of the telescopic spring. The second push plate is rotatably installed on the first support frame, and the end of the second push plate away from the first support frame is pressed against a protrusion on the movable rod. The end of the second push plate pressed against the protrusion on the movable rod is rotatably installed with the first push plate.

[0011] Optionally, an ink-pushing plate is fixedly installed on the side of the first pusher plate away from the second pusher plate. The ink-filling mechanism also includes an ink storage box fixedly installed at the bottom of the second support frame for storing ink. The ink-pushing plate slides in a sealed manner inside the ink storage box. A connecting pipe is installed on one side of the ink storage box, and the other end of the connecting pipe is connected to the printing head. The connecting pipe is made of elastic material.

[0012] Optionally, the stabilizing mechanism includes a third limiting slot formed on the placement plate.

[0013] Optionally, the stabilizing mechanism further includes a fourth limiting groove formed on the second support frame. A driving plate is slidably installed inside the fourth limiting groove. A first gear is installed on the side of the driving plate away from the fourth limiting groove. The stabilizing mechanism also includes a second gear installed on a fixed shaft. The second gear meshes with the first gear. A third push plate is installed at one end of the driving plate. The third push plate is L-shaped, and a limiting block is installed at the bottom of the third push plate. The limiting block is pressed and connected to the third limiting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Place the cardboard box on the placement board and use the plug-in rod on the placement board. The ball block at one end of the plug-in rod connects to the mounting plate, which can maintain the stability of the connection between the placement board and the mounting plate. Since the mounting plate is mounted on the chain, the chain can move the cardboard box on the placement board. In addition, the placement board and the mounting plate can be detached, and the distance between two adjacent placement boards can be selected according to the actual situation.

[0016] After the printing head finishes printing driven by the connecting plate, the connecting plate moves the printing head upward. At the same time, the connecting plate moves the movable rod through the connecting shaft. The movable rod rotates on the first support frame through the fixed shaft. In addition, the movable rod moves inside the first and second limiting grooves. The protrusion at one end of the movable rod presses the second push plate to move. The second push plate rotates on the first support frame and drives the first push plate to move. The first push plate drives the ink pusher plate to move. The ink pusher plate slides in a sealed manner inside the ink storage box, squeezing the ink inside the ink storage box through the connecting tube into the printing head, achieving the effect of automatic ink addition. This avoids the need to stop working when adding ink, thus saving time and improving work efficiency.

[0017] When the movable rod rotates and presses the second push plate, the movable rod drives the fixed shaft to rotate, and the fixed shaft drives the second gear to rotate. The second gear meshes with the first gear, and the second gear can drive the moving plate to slide inside the fourth limiting groove. At the same time, when the moving plate slides, it drives the third push plate to move. The third push plate drives the limiting block to move. The limiting block is pressed and connected with the third limiting groove, which can make the connection between the placement plate and the mounting plate more stable and avoid the stability of the connection between the placement plate and the mounting plate from deteriorating, which would cause the printing position of the carton on the placement plate to be misaligned. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a printing apparatus for cardboard box production according to the present invention;

[0019] Figure 2 This is a second schematic diagram of the overall structure of a printing device for cardboard box production according to the present invention;

[0020] Figure 3 This is a cross-sectional view of one of the printing apparatuses for cardboard box production according to the present invention;

[0021] Figure 4 This invention relates to a printing apparatus for cardboard box production. Figure 3 Enlarged view of section A in the middle;

[0022] Figure 5 This is a second cross-sectional view of a printing apparatus for cardboard box production according to the present invention;

[0023] Figure 6 This invention relates to a printing apparatus for cardboard box production. Figure 5 Enlarged view of section B;

[0024] Figure 7 This is a partial cross-sectional view of a printing apparatus for cardboard box production according to the present invention;

[0025] Figure 8 This is a third schematic diagram of the overall structure of a printing device for cardboard box production according to the present invention;

[0026] Figure 9 This invention relates to a printing apparatus for cardboard box production. Figure 8 Enlarged view of section C.

[0027] In the diagram: 1. Work frame; 2. Transport mechanism; 21. Motor; 22. First drive roller; 23. Chain; 24. Second drive roller; 3. Placement mechanism; 31. Placement plate; 32. Mounting plate; 33. Connecting rod; 34. Spherical block; 4. Printing mechanism; 41. First support frame; 42. Second support frame; 43. Hydraulic rod; 44. Connecting plate; 45. Printing head; 5. Ink filling mechanism; 51. First limiting groove; 52. Movable rod; 53. Fixed shaft; 54. Connecting shaft; 55. Second limiting groove; 56. Ink storage box; 57. Ink pusher plate; 58. First pusher plate; 59. Second pusher plate; 510. Telescopic spring; 511. Connecting pipe; 6. Stabilizing mechanism; 61. Third limiting groove; 62. Fourth limiting groove; 63. Drive plate; 64. Second gear tooth; 65. Third pusher plate; 66. Limiting block.

[0028] Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Please see Figures 1 to 9 This invention provides a printing apparatus for cardboard box production, including a work frame 1 for support, a transport mechanism 2 for automatically transporting cardboard boxes on the work frame 1, a placement mechanism 3 for placing cardboard boxes detachably mounted on the transport mechanism 2, a printing mechanism 4 for printing on the cardboard boxes on the work frame 1, an ink-adding mechanism 5 for automatically adding ink to the printing mechanism 4 and being driven by the printing mechanism 4, and a stabilizing mechanism 6 connected to the placement mechanism 3 and the transport mechanism 2 on the printing mechanism 4. The stabilizing mechanism 6 is connected to the ink-adding mechanism 5. Cardboard boxes are placed on the placement mechanism 3 and automatically transported by the transport mechanism 2, avoiding manual handling of the cardboard boxes and saving resources. To improve work efficiency, the printing mechanism 4 can print automatically. While the printing mechanism 4 is printing, it drives the ink-adding mechanism 5 to work. The ink-adding mechanism 5 can automatically add ink to the printing mechanism 4, which can avoid stopping the device to add ink. This not only greatly saves manpower and resources, but also effectively improves work efficiency. In addition, when the ink-adding mechanism 5 automatically adds ink to the printing mechanism 4, it drives the stabilizing mechanism 6 to work. The stabilizing mechanism 6 can make the connection between the placement mechanism 3 and the transport mechanism 2 more stable, and prevent the stability of the connection between the placement mechanism 3 and the transport mechanism 2 from deteriorating under the drive of the transport mechanism 2, which would cause the printing position of the carton on the placement mechanism 3 to be misaligned.

[0034] Furthermore, the transport mechanism 2 includes a motor 21 fixedly mounted on the work frame 1. The output end of the motor 21 penetrates the inner wall of the work frame 1. A second drive roller 24 is installed at the output end of the motor 21. A first drive roller 22 is rotatably mounted on one side of the work frame 1. A chain 23 is meshed with the outer side of the motor 21, and the chain 23 is meshed with the first drive roller 22. When the motor 21 is started, the output end of the motor 21 drives the second drive roller 24 to rotate. The second drive roller 24 drives the chain 23 to rotate. The second drive roller 24 also rotates in conjunction with the first drive roller 22, thereby driving the placement mechanism 3 to move.

[0035] Furthermore, the placement mechanism 3 includes a placement plate 31 for placing cartons, and a mounting plate 32 mounted on the chain 23. A connecting rod 33 is installed through the placement plate 31, and a spherical block 34 is fixedly installed at one end of the connecting rod 33 near the mounting plate 32. The spherical block 34 is inserted into the mounting plate 32. By using the connecting rod 33 on the placement plate 31 and the spherical block 34 at one end of the connecting rod 33 to the mounting plate 32, the stability of the connection between the placement plate 31 and the mounting plate 32 can be maintained. Since the mounting plate 32 is mounted on the chain 23, the chain 23 can drive the cartons on the placement plate 31 to move. In addition, the detachable connection between the placement plate 31 and the mounting plate 32 allows the distance between two adjacent placement plates 31 to be selected according to the actual situation.

[0036] Furthermore, the printing mechanism 4 includes a first support frame 41 fixedly connected to the work frame 1. A second support frame 42 is fixedly installed on one side of the first support frame 41. A hydraulic rod 43 is fixedly installed on the top surface of the second support frame 42. The output end of the hydraulic rod 43 passes through the inner wall of the second support frame 42. A connecting plate 44 is fixedly installed on the output end of the hydraulic rod 43. A printing head 45 for printing on cartons is fixedly installed on the end of the connecting plate 44 away from the output end of the hydraulic rod 43. When the hydraulic rod 43 is activated, the output end of the hydraulic rod 43 drives the connecting plate 44 to move, and the connecting plate 44 drives the printing head 45 to move to perform printing.

[0037] Furthermore, the ink-filling mechanism 5 includes a fixed shaft 53 rotatably mounted on one side of the first support frame 41. A movable rod 52 is fixedly mounted on the surface of the fixed shaft 53. A protrusion is integrally mounted on one end of the movable rod 52 connected to the fixed shaft 53. A second limiting groove 55 is provided at the end of the movable rod 52 away from the fixed shaft 53. The ink-filling mechanism 5 also includes a connecting shaft 54 ​​fixedly connected to the connecting plate 44. The connecting shaft 54 ​​moves inside the second limiting groove 55. The surface of the connecting plate 44 at the end where the printing head 45 is mounted is provided with a movable groove for the movement of the movable rod 52. The first support frame 41 and the second support frame... Each side of the 42 is provided with a first limiting groove 51 for the movement of the movable rod 52. The ink filling mechanism 5 also includes a telescopic spring 510 fixedly installed on one side of the first support frame 41. The other end of the telescopic spring 510 is fixedly installed with a second push plate 59. The second push plate 59 is rotatably installed on the first support frame 41, and the end of the second push plate 59 away from the first support frame 41 is pressed against a protrusion on the movable rod 52. The end of the second push plate 59 that is pressed against the protrusion on the movable rod 52 is rotatably installed with a first push plate 58. The side of the first push plate 58 away from the second push plate 59 is fixedly installed with an ink pusher. The ink-filling mechanism 5 also includes an ink storage box 56 fixedly installed at the bottom of the second support frame 42 for storing ink. The ink-pushing plate 57 slides and seals inside the ink storage box 56. A connecting pipe 511 is connected to one side of the ink storage box 56, and the other end of the connecting pipe 511 is connected to the print head 45. The connecting pipe 511 is made of elastic material. After the connecting plate 44 drives the print head 45 to complete printing, the connecting plate 44 drives the print head 45 to move upward. At the same time, the connecting plate 44 drives the movable rod 52 to move through the connecting shaft 54. The movable rod 52 rotates on the first support frame 41 through the fixed shaft 53. The external movable rod 52 moves simultaneously inside the first limiting groove 51 and the second limiting groove 55. The protrusion at one end of the movable rod 52 will press the second push plate 59 to move. The second push plate 59 will rotate on the first support frame 41. At the same time, the second push plate 59 drives the first push plate 58 to move. The first push plate 58 drives the ink pushing plate 57 to move. The ink pushing plate 57 slides in a sealed manner inside the ink storage box 56, squeezing the ink inside the ink storage box 56 into the inside of the printing head 45 through the connecting pipe 511, achieving the effect of automatic ink addition. This avoids the need to stop working when adding ink, thus saving time and improving work efficiency.

[0038] Furthermore, the stabilizing mechanism 6 includes a third limiting groove 61 formed on the placement plate 31, and a fourth limiting groove 62 formed on the second support frame 42. A driving plate 63 is slidably installed inside the fourth limiting groove 62. A first gear is installed on the side of the driving plate 63 away from the fourth limiting groove 62. The stabilizing mechanism 6 also includes a second gear 64 installed on the fixed shaft 53, which meshes with the first gear. A third push plate 65 is installed at one end of the driving plate 63. The third push plate 65 is L-shaped, and a limiting block 66 is installed at the bottom of the third push plate 65. The limiting block 66 is pressed against the third limiting groove 61. When the second push plate 59 is rotated and pressed, the movable rod 52 drives the fixed shaft 53 to rotate, and the fixed shaft 53 drives the second gear 64 to rotate. The second gear 64 meshes with the first gear, and the second gear 64 can drive the driving plate 63 to slide inside the fourth limiting groove 62. At the same time, when the driving plate 63 slides, it drives the third push plate 65 to move. The third push plate 65 drives the limiting block 66 to move. The limiting block 66 is pressed and connected with the third limiting groove 61, which can make the connection between the placement plate 31 and the mounting plate 32 more stable and avoid the stability of the connection between the placement plate 31 and the mounting plate 32 from deteriorating, which would cause the printing position of the carton on the placement plate 31 to be misaligned.

[0039] Working principle: The carton is placed on the placement plate 31. The insertion rod 33 on the placement plate 31, with its spherical block 34 at one end, connects to the mounting plate 32, maintaining the stability of the connection between the placement plate 31 and the mounting plate 32. Since the mounting plate 32 is mounted on the chain 23, the chain 23 can move the carton on the placement plate 31. Furthermore, the placement plate 31 and the mounting plate 32 are detachably connected, allowing the distance between two adjacent placement plates 31 to be selected according to actual needs. The motor 21 is started, and its output drives the second driving roller 24 to rotate. 4 drives the chain 23 to rotate, and the second drive roller 24 simultaneously rotates in coordination with the first drive roller 22, thereby moving the carton on the placement plate 31. This activates the hydraulic rod 43, whose output end drives the connecting plate 44 to move. The connecting plate 44 then drives the printing head 45 to move for printing. After printing is completed, the connecting plate 44 drives the printing head 45 to move upwards. Simultaneously, the connecting plate 44 drives the movable rod 52 to move via the connecting shaft 54. The movable rod 52 rotates on the first support frame 41 via the fixed shaft 53. Additionally, the movable rod 52 simultaneously rotates in the first limiting groove 51... The internal movement of the second limiting groove 55 causes the protrusion at one end of the movable rod 52 to press the second push plate 59 to move. The second push plate 59 rotates on the first support frame 41, and simultaneously drives the first push plate 58 to move. The first push plate 58 drives the ink pushing plate 57 to move. The ink pushing plate 57 slides in a sealed manner inside the ink storage box 56, squeezing the ink inside the ink storage box 56 through the connecting pipe 511 into the printing head 45, achieving the effect of automatic ink addition. This avoids the need to stop work when adding ink, thus saving time and improving work efficiency. When the movable rod 52 rotates and presses the second push plate 59... The movable rod 52 drives the fixed shaft 53 to rotate, and the fixed shaft 53 drives the second gear 64 to rotate. The second gear 64 meshes with the first gear, and the second gear 64 can drive the driving plate 63 to slide inside the fourth limiting groove 62. At the same time, when the driving plate 63 slides, it drives the third push plate 65 to move. The third push plate 65 drives the limiting block 66 to move. The limiting block 66 is pressed and connected with the third limiting groove 61, which can make the connection between the placement plate 31 and the mounting plate 32 more stable and avoid the stability of the connection between the placement plate 31 and the mounting plate 32 from deteriorating, which would cause the printing position of the carton on the placement plate 31 to be misaligned.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing apparatus for carton production, comprising a work frame (1) for support, characterized in that, The work frame (1) is provided with a transport mechanism (2) for automatically transporting cartons. The transport mechanism (2) is detachably installed with a placement mechanism (3) for placing cartons. The work frame (1) is provided with a printing mechanism (4) for printing cartons. The printing mechanism (4) is provided with an ink-adding mechanism (5) for automatically adding ink to the printing mechanism (4). The ink-adding mechanism (5) is driven by the printing mechanism (4). The printing mechanism (4) is provided with a stabilizing mechanism (6) that is connected to the stable placement mechanism (3) and the transport mechanism (2). The stabilizing mechanism (6) is connected to the ink-adding mechanism (5). The transport mechanism (2) includes a motor (21) fixedly installed on the work frame (1). The output end of the motor (21) penetrates the inner wall of the work frame (1). A second drive roller (24) is installed on the output end of the motor (21). A first drive roller (22) is rotatably installed on one side of the work frame (1). A chain (23) is meshed with the outer side of the motor (21), and the chain (23) is meshed with the first drive roller (22). The placement mechanism (3) includes a placement plate (31) for placing cartons, and the placement mechanism (3) also includes a mounting plate (32) mounted on a chain (23). A plug rod (33) is installed through the placement plate (31), and a spherical block (34) is fixedly installed at one end of the plug rod (33) near the mounting plate (32). The spherical block (34) is plugged into the mounting plate (32). The printing mechanism (4) includes a first support frame (41) fixedly connected to the work frame (1), a second support frame (42) fixedly installed on one side of the first support frame (41), a hydraulic rod (43) fixedly installed on the top surface of the second support frame (42), the output end of the hydraulic rod (43) penetrating the inner wall of the second support frame (42), a connecting plate (44) fixedly installed on the output end of the hydraulic rod (43), and a printing head (45) for printing on cartons fixedly installed on the end of the connecting plate (44) away from the output end of the hydraulic rod (43); The ink-adding mechanism (5) includes a fixed shaft (53) rotatably mounted on one side of the first support frame (41), a movable rod (52) is fixedly mounted on the surface of the fixed shaft (53), and a protrusion is integrally mounted on one end of the movable rod (52) connected to the fixed shaft (53); The movable rod (52) has a second limiting groove (55) at one end away from the fixed shaft (53). The ink filling mechanism (5) also includes a connecting shaft (54) fixedly connected to the connecting plate (44). The connecting shaft (54) moves inside the second limiting groove (55). The surface of the connecting plate (44) where the printing head (45) is installed has a movable groove for the movable rod (52) to move. The first support frame (41) and the second support frame (42) both have a first limiting groove (51) for the movable rod (52) to move on one side. The ink-adding mechanism (5) also includes a telescopic spring (510) fixedly installed on one side of the first support frame (41). The other end of the telescopic spring (510) is fixedly installed with a second push plate (59). The second push plate (59) is rotatably installed on the first support frame (41), and the end of the second push plate (59) away from the first support frame (41) is pressed and connected to the protrusion on the movable rod (52). The end of the second push plate (59) pressed against the protrusion on the movable rod (52) is rotatably installed with a first push plate (58).

2. The printing apparatus for cardboard box production according to claim 1, characterized in that, The first push plate (58) is fixedly installed with an ink pusher plate (57) on the side away from the second push plate (59). The ink filling mechanism (5) also includes an ink storage box (56) fixedly installed at the bottom of the second support frame (42) for storing ink. The ink pusher plate (57) slides in a sealed manner inside the ink storage box (56). A connecting pipe (511) is connected to one side of the ink storage box (56). The other end of the connecting pipe (511) is connected to the printing head (45). The connecting pipe (511) is made of elastic material.

3. A printing apparatus for cardboard box production according to claim 2, characterized in that, The stabilizing mechanism (6) includes a third limiting groove (61) opened on the placement plate (31), and the stabilizing mechanism (6) also includes a fourth limiting groove (62) opened on the second support frame (42). A driving plate (63) is slidably installed inside the fourth limiting groove (62). A first gear is installed on the side of the driving plate (63) away from the fourth limiting groove (62). The stabilizing mechanism (6) also includes a second gear (64) installed on the fixed shaft (53). The second gear (64) meshes with the first gear. A third push plate (65) is installed at one end of the driving plate (63). The third push plate (65) is L-shaped, and a limiting block (66) is installed at the bottom of the third push plate (65). The limiting block (66) is pressed and connected to the third limiting groove (61).

4. A printing method for a printing apparatus for cardboard box production according to any one of claims 1-3, characterized in that, Place the cardboard box on the placement plate (31), and use the insertion rod (33) on the placement plate (31) to connect it to the mounting plate (32) through the ball block (34) at one end of the insertion rod (33). This maintains the stability of the connection between the placement plate (31) and the mounting plate (32). Since the mounting plate (32) is mounted on the chain (23), the chain (23) can drive the cardboard box on the placement plate (31) to move. In addition, the placement plate (31) and the mounting plate (32) are detachably connected, and the distance between two adjacent placement plates (31) can be selected according to the actual situation. Start the motor (21), and the motor (21) The output end drives the second drive roller (24) to rotate, the second drive roller (24) drives the chain (23) to rotate, and the second drive roller (24) simultaneously rotates in coordination with the first drive roller (22), thereby driving the carton on the placement plate (31) to move. The hydraulic rod (43) is activated, and the output end of the hydraulic rod (43) drives the connecting plate (44) to move. The connecting plate (44) drives the printing head (45) to move to perform printing. After the printing head (45) is finished printing, the connecting plate (44) drives the printing head (45) to move upward. At the same time, the connecting plate (44) drives the movable shaft (54) to move upward. The rod (52) moves, and the movable rod (52) rotates on the first support frame (41) via the fixed shaft (53). At the same time, the movable rod (52) moves inside the first limiting groove (51) and the second limiting groove (55). The protrusion at one end of the movable rod (52) will press the second push plate (59) to move. The second push plate (59) will rotate on the first support frame (41). At the same time, the second push plate (59) will drive the first push plate (58) to move. The first push plate (58) will drive the ink pusher plate (57) to move. The ink pusher plate (57) slides in a sealed manner inside the ink storage box (56), allowing the ink inside the ink storage box (56) to pass through. The material is squeezed through the connecting tube (511) into the inside of the printing head (45); when the movable rod (52) rotates and squeezes the second push plate (59), the movable rod (52) drives the fixed shaft (53) to rotate, the fixed shaft (53) drives the second gear (64) to rotate, the second gear (64) meshes with the first gear, the second gear (64) can drive the driving plate (63) to slide inside the fourth limiting groove (62), and at the same time, when the driving plate (63) slides, it drives the third push plate (65) to move, the third push plate (65) drives the limiting block (66) to move, and the limiting block (66) is squeezed and connected to the third limiting groove (61).

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