Alignment printing device for food packaging bag production

Abstract

The utility model discloses an alignment printing device for food packaging bag production, which relates to the field of food packaging bag production and comprises a printing frame, stand columns are arranged on two sides of the front face of the printing frame, vertical grooves are arranged at the front ends and the rear ends of the stand columns, and the upper end and the lower end of the printing frame extend forwards to be provided with fixing frames. A printing roller is arranged at one end of the fixing frame, a packaging bag body is transversely arranged on the inner side of the printing roller, a motor assembly is arranged at one end of the printing roller, tooth plates are arranged on the two sides of the packaging bag body, and semi-cylindrical protruding strips are arranged on the inner sides of the tooth plates. The convex strips in the tooth plate can abut against the edge of the outer side of the packaging bag body up and down, so that the packaging bag body cannot be bent downwards due to the gravity of the packaging bag body in the brush printing process, it is guaranteed that the packaging bag body can continuously form tension in the brush printing process, and brush printing operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of food packaging bag production technology, specifically to a registration printing device for food packaging bag production. Background Technology

[0002] The production of food packaging bags is closely related to printing equipment, primarily in terms of printing quality and efficiency, lamination processes, bag-making processes, production automation, quality control, and innovative technologies. Specialized printing equipment, such as gravure and flexographic printing presses, ensures the printing quality and speed of food packaging bags, meeting the demands of mass production. Laminating machines combine different film materials to enhance the barrier properties and strength of the packaging. The printing unit in the bag-making machine is responsible for printing patterns and text on the bag surface and is an indispensable part of bag making. The degree of automation in the production line, especially the automation of the printing unit, directly affects production efficiency. Inspection machines ensure the quality of packaging bags through optical and electrical performance testing. New printing equipment improves printing efficiency and convenience through innovative design, solving operational problems. The printing unit plays a core role in the production of food packaging bags, influencing the appearance quality and functionality of the packaging. With technological advancements, its automation and environmental performance are continuously improving to meet the needs of modern food packaging.

[0003] Publication number CN218558289U discloses a registration printing device for food packaging bag production, comprising a side body. A fixed platform is mounted on the top of the side body, and an installation mechanism is fixedly connected to one end of the fixed platform. The installation mechanism consists of a connecting seat, and a connecting frame is fixedly connected to one end of the connecting seat. A printer body is movably connected to the bottom of the connecting frame, and a side seat is fixedly connected to the top of the printer body. The connecting frame and the side seat are slidably connected, and a limiting sleeve is fixedly connected to the top of the side seat. A size adjustment mechanism is fixedly connected to the inner bottom wall of the side body. Through the cooperative use of the side seat, connecting frame, internal pin, and limiting sleeve, the printer body can be easily installed and replaced by operators, avoiding damage during use that could prevent replacement and disruption of normal operation.

[0004] The above technology utilizes components such as installation mechanisms and connecting frames to help workers install and replace the printer. However, when printing on packaging bags, wrinkles and loosening are unavoidable.

[0005] Therefore, in view of this, we have studied and improved the existing shortcomings and proposed a registration printing device for food packaging bag production. Utility Model Content

[0006] The purpose of this invention is to provide a registration printing device for food packaging bag production, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a registration printing device for food packaging bag production, comprising: a printing frame, columns on both sides of the front of the printing frame, vertical grooves at the front and rear ends of the columns, a retaining frame extending forward at the upper and lower ends of the printing frame, a printing roller at one end of the retaining frame, a packaging bag body arranged laterally on the inner side of the printing roller, a motor assembly at one end of the printing roller, gripper plates on both sides of the packaging bag body, a semi-cylindrical protrusion on the inner side of the gripper plate, a compression spring on the inner side of the gap at the rear end of the gripper plate, a V-shaped clamping frame at one end of the outer side of the gripper plate, a receiving joint at one end of the clamping frame, and a shaft extending outward from the inside of the receiving joint;

[0008] An auxiliary structure is provided at the bottom of the vertical groove.

[0009] Furthermore, the arrangement radius of the protrusions inside the toothed plate is from small to large, which makes it easier for the toothed plate to grip the outer side of the packaging bag body.

[0010] Furthermore, the inner angle of the clamping frame is greater than the angle when the jaw plate is closed, so that the clamping frame will not obstruct the movement of the jaw plate when the jaw plate is expanding.

[0011] Furthermore, the shaft and the bearing are connected by a threaded swivel joint, which facilitates the installation of the shaft and the bearing.

[0012] Furthermore, the auxiliary structure includes a crossbar, an anti-fall cylinder, a top rod, a sliding frame, ball bearings, a connecting block, and an inner cylinder. A connecting block is horizontally arranged in the middle of the bottom end of the vertical groove. An inner cylinder is fixedly arranged at both ends of the connecting block. Ball bearings are arranged in a ring at the front and rear ends of the outer side of the inner cylinder. An anti-fall cylinder is arranged on the outer side of the inner cylinder. Crossbars are arranged on both sides of the bottom end of the vertical groove. A sliding frame is sleeved on the outer side of the crossbar. An L-shaped top rod is arranged at the top of the sliding frame. The angle of the inner side of the top rod is an obtuse angle, so that the part of the top rod that is raised can abut against the two sides of the bottom end of the packaging bag body.

[0013] Furthermore, the sliding frame and the crossbar form a sliding connection, which facilitates the sliding frame to drive the top rod to move.

[0014] Furthermore, the horizontal position of the top of the anti-fall cylinder is flush with the horizontal position of the top of the top rod, so that the top rod and the anti-fall cylinder can provide a supporting plane for the bottom of the packaging bag body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a shaft that moves forward, and a connector connects the shaft to the clamping frame and the toothed plate. When the shaft moves, the connector moves with it, and the connector drives the clamping frame and the toothed plate closer to the outer edge of the packaging bag body. At the same time, the user pries open the toothed plate, and the compression spring extends as the toothed plate opens. The clamping frame also expands as the toothed plate opens. The toothed plate clamps the packaging bag body, so the protrusions inside the toothed plate will press against the outer edge of the packaging bag body from top to bottom. This prevents the packaging bag body from bending downwards due to its own weight during the printing process, ensuring that the packaging bag body can maintain tension during the printing process, which is convenient for printing operation.

[0017] 2. This utility model uses a sliding frame on the outside of a moving crossbar. The sliding frame drives the top rod to move to both sides of the bottom of the packaging bag body. At the same time, the anti-falling cylinder is positioned in the middle of the bottom of the packaging bag body. When the packaging bag body moves left and right, the anti-falling cylinder is rotated by the packaging bag body. Furthermore, the outer ends of the inner cylinder are equipped with ball bearings. When the anti-falling cylinder rotates, the ball bearings increase the smoothness of the rotation. This ensures that the packaging bag body will not be unable to continue moving due to bending or other reasons during the conveying process after printing, thus ensuring the continuity of the entire printing process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the third appearance structure of the present utility model;

[0021] Figure 4 This is a schematic diagram of the toothed plate structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the auxiliary structure of this utility model.

[0023] In the diagram: 1. Printing frame; 2. Shaft; 3. Tooth plate; 4. Connector; 5. Auxiliary structure; 51. Crossbar; 52. Anti-fall cylinder; 53. Top rod; 54. Sliding frame; 55. Ball bearing; 56. Connecting block; 57. Inner cylinder; 6. Fixing frame; 7. Packaging bag body; 8. Column; 9. Motor assembly; 10. Printing roller; 11. Vertical groove; 12. Clamping frame; 13. Raised strip; 14. Compression spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-5 As shown, a registration printing device for food packaging bag production includes: a printing frame 1, columns 8 on both sides of the front of the printing frame 1, vertical grooves 11 at the front and rear ends of the columns 8, a retaining frame 6 extending forward at the upper and lower ends of the printing frame 1, a printing roller 10 at one end of the retaining frame 6, a packaging bag body 7 arranged laterally on the inner side of the printing roller 10, a motor assembly 9 at one end of the printing roller 10, gripper plates 3 on both sides of the packaging bag body 7, a semi-cylindrical protrusion 13 on the inner side of the gripper plate 3, a compression spring 14 on the inner side of the gap at the rear end of the gripper plate 3, a V-shaped clamping frame 12 at one end of the outer side of the gripper plate 3, a receiving joint 4 at one end of the clamping frame 12, and a shaft 2 extending outward from the inside of the receiving joint 4.

[0026] An auxiliary structure 5 is provided at the bottom of the vertical groove 11.

[0027] Furthermore, since the connector 4 can connect the shaft 2 and the clamping frame 12, and when the jaw plate 3 opens, the compression spring 14 extends, and the clamping frame 12 expands as the jaw plate 3 unfolds, when the jaw plate 3 bites the two sides of the packaging bag body 7, the protrusions 13 on the inner side of the jaw plate 3 increase the tightness between the jaw plate 3 and the packaging bag body 7, so that the packaging bag body 7 will not bend or shake during the printing process, thus affecting the printing effect. Moreover, the arrangement of the protrusions 13 is from the front end of the jaw plate 3 to the rear end, and the diameter of the protrusions 13 increases from small to large, which increases the pressure strength between the jaw plate 3 and the two sides of the packaging bag body 7. The user can add components such as an electric control telescopic rod to one end of the shaft 2, so that when the packaging bag body 7 is being printed, the shaft 2 can be pushed to both sides of the packaging bag body 7 by the electric control telescopic rod, thus making it easier to control the movement time of the shaft 2.

[0028] This has resulted in the following effects and novel technologies:

[0029] The structural stability of the printing frame 1 is enhanced by the uprights 8 and vertical grooves 11, thereby improving the alignment accuracy during the printing process. The introduction of the motor assembly 9 makes the rotation of the printing roller 10 more stable and controllable, improving the efficiency of the automated printing process. The design of the gripper plate 3 and V-shaped clamping frame 12 effectively fixes the packaging bag body 7. The semi-cylindrical convex strips 13 increase the tightness with the packaging bag, ensuring that the packaging bag will not affect the printing effect due to uneven tension during the printing process. The design of the compression spring 14 allows the gripper plate 3 to extend when it opens. The arrangement of the convex strips 13 gradually increases in diameter from the front end of the gripper plate 3 to the rear end, which improves the pressure strength between the gripper plate 3 and the two sides of the packaging bag body 7, effectively reducing the wrinkling phenomenon during the printing process. The design of the receiving joint 4 and the shaft 2 simplifies the operation process, allowing the packaging bag body 7 to be pushed to both sides of the packaging bag body 7 by the electrically controlled telescopic rod during printing, making it easier to control the activity time of the shaft 2. This alignment printing device design improves the accuracy and efficiency of food packaging bag printing, enhances the ease of operation and printing quality, and provides a new technical solution for the production of food packaging bags.

[0030] like Figures 1-5 As shown, a registration printing device for food packaging bag production includes an auxiliary structure 5 comprising a crossbar 51, an anti-fall cylinder 52, a top rod 53, a sliding frame 54, ball bearings 55, a connecting block 56, and an inner cylinder 57. A connecting block 56 is horizontally arranged at the middle of the bottom end of a vertical groove 11. The inner cylinder 57 is fixedly arranged at both ends of the connecting block 56. Ball bearings 55 are arranged in a ring around the front and rear ends of the outer side of the inner cylinder 57. An anti-fall cylinder 52 is arranged on the outer side of the inner cylinder 57. Crossbars 51 are arranged on both sides of the bottom end of the vertical groove 11. A sliding frame 54 is sleeved on the outer side of the crossbar 51. An L-shaped top rod 53 is arranged at the top of the sliding frame 54. The inner angle of the top rod 53 is an obtuse angle.

[0031] As for the rest, since the crossbar 51 is positioned on both sides of the bottom of the packaging bag body 7, and the sliding frame 54 on the outside of the crossbar 51 drives the top rod 53 to move to the bottom of the packaging bag body 7, the upper part of the top rod 53 tilts upwards at the same time. At this time, the top rod 53 provides support for both sides of the packaging bag body 7. During the left and right conveying of the packaging bag body 7, the middle part of the bottom of the packaging bag body 7 drives the anti-falling cylinder 52 to rotate. At the same time, the inner cylinders 57 at both ends of the connecting block 56 are inserted into the inner side of the anti-falling cylinder 52. At this time, the anti-falling cylinder 52 will rotate independently. Meanwhile, the ball bearing 55 increases the smoothness of the rotation of the anti-falling cylinder 52. The user can increase the thickness or radius of the anti-falling cylinder 52 to fit the outer surface of the packaging bag body 7 under different conditions.

[0032] This has resulted in the following effects and novel technologies:

[0033] Through the innovation of auxiliary structure 5, stable conveying and precise positioning of packaging bags during the printing process are achieved. Crossbars 51 are set on both sides of the bottom end of the packaging bag body 7, cooperating with slide frame 54 and top rod 53 to provide stable support, ensuring that the packaging bag remains flat during conveying and reducing printing deviation. The L-shaped design of top rod 53 ensures close contact with the bottom end of packaging bag body 7, and the top end is tilted upward to provide additional positioning points, enhancing printing accuracy. Anti-fall cylinder 52 allows the bottom end of packaging bag body 7 to rotate, and inner cylinder 57 is inserted inside to allow anti-fall cylinder 52 to rotate independently. Ball bearings 55 improve the smoothness of rotation and reduce friction. Users can adjust the thickness or radius of anti-fall cylinder 52 according to the size and shape of packaging bag body 7 to improve the adaptability and flexibility of the device. Connecting block 56 fixes inner cylinder 57, enhancing the stability and strength of auxiliary structure 5 and ensuring high-speed printing reliability. This design improves the printing stability and accuracy of food packaging bags, and enhances adaptability and structural strength, providing an effective technical solution for high-quality printing.

[0034] Working principle: When using this registration printing device for food packaging bag production, first move the printing frame 1 to a suitable position, then place the packaging bag body 7 inside the printing roller 10, and the retaining frame 6 helps to limit the printing roller 10 to a certain height. The motor assembly 9 drives the printing roller 10 to roll. The user screws the connector 4 onto the outside of one end of the shaft 2. The connector 4 connects the shaft 2 with the clamping frame 12 and the gripper plate 3. At this time, the user moves the shaft 2 closer to both sides of the packaging bag body 7. The shaft 2 drives the connector 4 and the clamping frame 12 and other components closer to both sides of the packaging bag body 7. The gripper plate 3 is opened, so that the gripper plate 3 clamps the two sides of the packaging bag body 7, and the protrusions 13 abut against the upper and lower sides of the packaging bag body 7. When the toothed plate 3 opens, the compression spring 14 extends along with the opening of the toothed plate 3, and the clamping frame 12 also extends along with the opening of the toothed plate 3. After the printing roller 10 finishes printing on the packaging bag body 7, the packaging bag body 7 is conveyed to one side. At this time, the sliding frame 54 on the outside of the moving crossbar 51 moves to both sides of the bottom end of the packaging bag body 7. The top rod 53 provides bottom support and support path for the movement of the packaging bag body 7. The anti-falling cylinder 52 at the middle of the bottom end of the packaging bag body 7 rotates along with the movement of the packaging bag body 7. The ball bearings 55 and the inner cylinder 57 inside the anti-falling cylinder 52 improve the smoothness of the rotation of the anti-falling cylinder 52. This is the working principle of the registration printing device for food packaging bag production.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A registration printing apparatus for producing food packaging bags, comprising: A printing frame (1) is characterized in that: two sides of the front of the printing frame (1) are provided with columns (8), the front and rear ends of the columns (8) are provided with vertical grooves (11), the upper and lower ends of the printing frame (1) are provided with retaining frames (6), one end of the retaining frame (6) is provided with a printing roller (10), the inner side of the printing roller (10) is provided with a packaging bag body (7), one end of the printing roller (10) is provided with a motor assembly (9), the two sides of the packaging bag body (7) are provided with tooth plates (3), the inner side of the tooth plates (3) is provided with a semi-cylindrical protrusion (13), the inner side of the gap at the rear end of the tooth plates (3) is provided with a compression spring (14), one end of the outer side of the tooth plates (3) is provided with a V-shaped clamping frame (12), one end of the clamping frame (12) is provided with a receiving joint (4), and the receiving joint (4) extends outward from the inside of the outer side with a shaft (2). An auxiliary structure (5) is provided at the bottom of the vertical groove (11).

2. The registration printing apparatus for food packaging bag production according to claim 1, characterized in that, The radius of the arrangement structure of the protrusions (13) inside the tooth plate (3) increases from small to large.

3. The registration printing apparatus for food packaging bag production according to claim 1, characterized in that, The inner angle of the clamping frame (12) is greater than the angle when the toothed plate (3) is closed.

4. The registration printing apparatus for food packaging bag production according to claim 1, characterized in that, The shaft (2) and the bearing (4) are connected by a threaded rotary connection.

5. The registration printing apparatus for food packaging bag production according to claim 1, characterized in that, The auxiliary structure (5) includes a crossbar (51), an anti-fall cylinder (52), a top rod (53), a sliding frame (54), a ball bearing (55), a connecting block (56), and an inner cylinder (57). A connecting block (56) is horizontally arranged at the middle of the bottom end of the vertical groove (11). An inner cylinder (57) is fixedly arranged at both ends of the connecting block (56). A ball bearing (55) is arranged in a ring at the front and rear ends of the outer side of the inner cylinder (57). An anti-fall cylinder (52) is arranged on the outer side of the inner cylinder (57). A crossbar (51) is arranged on both sides of the bottom end of the vertical groove (11). A sliding frame (54) is sleeved on the outer side of the crossbar (51). An L-shaped top rod (53) is arranged at the top of the sliding frame (54). The angle of the inner side of the top rod (53) is an obtuse angle.

6. The registration printing apparatus for food packaging bag production according to claim 5, characterized in that, The sliding frame (54) and the crossbar (51) form a sliding connection.

7. The registration printing apparatus for food packaging bag production according to claim 5, characterized in that, The horizontal position of the top of the anti-fall cylinder (52) is level with the horizontal position of the top of the top rod (53) that is raised.

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