A paper packaging bag compression case packer
By designing a limiting mechanism and a pushing mechanism, the problem of damage caused by tilting of paper packaging bags during compression and packing is solved, achieving uniform distribution and protection of the packaging bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO DONGRUN PACKAGING TECHNOLOGY CO LTD
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-04
AI Technical Summary
Existing paper packaging bag compression and packing machines have a problem where, during the compression process, the packaging bags tilt due to inertia and form an angle with the compression plate, causing the packaging bags to be crushed.
A limiting mechanism and a pushing mechanism were designed. The limiting plate and the arc-shaped push plate are driven to move by an electric push rod. The connecting rod drives the eccentric wheel to rotate through the spiral groove. The top plate makes vertical reciprocating motion along the sliding frame to prevent the tilted packaging bag from slipping and to limit the tail of the packaging box when the limiting plate stops.
It effectively prevents the packaging bags from being crushed due to tilting during compression, ensuring that the packaging bags are evenly distributed inside the packaging box and improving the protective effect of the packaging bags.
Smart Images

Figure CN224589524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compression packing technology, and in particular to a paper packaging bag compression packing machine. Background Technology
[0002] To protect goods, facilitate carrying, and identify products, packaging is used. Besides these functions, exquisite packaging design can also promote sales. Common packaging forms include ordinary bags and elegant boxes. Gifts are usually packaged in boxes, but boxes are inconvenient to carry, so a bag is added outside the box. Packaging bags are generally made of plastic or paper. Compared to plastic bags, paper bags are easier to process and print, lighter, foldable, non-toxic, odorless, and pollution-free. Therefore, high-end gift boxes are generally wrapped in paper bags. The production process of paper packaging bags involves cutting, creasing, folding, and gluing. Finished paper bags need to be neatly arranged and placed in boxes for packaging before being shipped.
[0003] A paper packaging bag compression and packing machine disclosed in Chinese patent CN214296777U can handle packaging bags of different sizes by setting a first chute and a second chute, improving practicality and meeting the needs of more users. A pressure sensor is incorporated to prevent damage to the packaging bags and improve work efficiency.
[0004] However, compared with existing technologies and solutions, this paper packaging bag compression box machine, when it reaches the bottom of the compression plate, stops after the box hits the limiting device. The packaging bags inside the box will continue to move due to inertia, which will cause the packaging bags to be unevenly placed and one side of the packaging bag to be draped on the inner wall of the box. When the compression plate compresses downward, the tilted packaging bag will form a certain angle with the compression plate, which will cause the packaging bag to be crushed. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a paper packaging bag compression and packing machine.
[0006] The purpose of this utility model is achieved through the following technical solution: a paper packaging bag compression and boxing machine, including a machine body, a fixed column fixedly connected to the inner side of the machine body, a fixed frame fixedly connected to one end of the fixed column, and an electric push rod fixedly connected to the top of the fixed frame;
[0007] The output end of the electric push rod is fixedly connected to a limiting plate. A hinge is fixedly connected to one side of the limiting plate. An arc-shaped push plate is hinged to the hinge. The arc-shaped push plate can slide along the hinge while it is hinged. A connecting rod is hinged to the end of the arc-shaped push plate away from the hinge. A limiting block is slidably connected to the middle of the connecting rod. The limiting block is fixedly connected to the top of the fixed frame. A spiral groove is opened at one end of the connecting rod.
[0008] One end of the connecting rod is rotatably connected to a connecting block. An annular groove is formed on one side of the connecting block. An eccentric wheel is slidably connected to the bottom of the annular groove. The eccentric wheel is connected to the spiral groove of the connecting rod. A connecting rod is hinged to one side of the eccentric wheel. A top plate is hinged to the other end of the connecting rod. A sliding frame is fixedly connected to the bottom of the connecting block. The sliding frame is fixedly connected to the top of the fixed frame. The top plate is slidably connected to the sliding frame.
[0009] Preferably, a base is fixedly connected to the bottom of the machine body.
[0010] Preferably, a conveyor shaft is rotatably connected to the inner side of the machine body.
[0011] Preferably, a compression frame is fixedly connected to the top of the machine body.
[0012] Preferably, a hydraulic press is fixedly connected to the middle of the compression frame.
[0013] Preferably, a compression plate is fixedly connected to the output end of the hydraulic press.
[0014] Preferably, the top plate is level with the conveying shaft before movement and is located at the lowest point of the eccentric movement; when the limiting plate moves to the top, the top plate is also located at the highest point of the eccentric movement.
[0015] Compared with the prior art, this utility model has the following beneficial effects: This paper packaging bag compression and packing machine, by setting a limiting mechanism and a pushing mechanism, during the transportation of the packaging box, the electric push rod causes the limiting part to move upward. During the upward movement of the limiting part, the arc-shaped push plate drives the connecting rod to move horizontally. The connecting rod drives the eccentric wheel to rotate through the spiral groove. When the eccentric wheel rotates, it drives the top plate to move vertically back and forth along the sliding frame, causing the top plate to shake the packaging box and causing the tilted packaging bag to slide down the inner wall of the packaging box. At the same time, when the limiting plate stops moving, the top plate limits the tail of the packaging box, preventing the product from being crushed due to the tilt of the packaging bag and the rebound of the packaging box during the compression process.
[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall structure of the conveying mechanism of this utility model;
[0020] Figure 3 This is a partial cross-sectional view of the limiting mechanism of this utility model.
[0021] Figure 4 for Figure 3 A schematic diagram of the structure at point A in the middle.
[0022] In the diagram: 1. Machine body; 2. Base; 3. Conveyor shaft; 4. Compression frame; 5. Hydraulic press; 6. Compression plate; 7. Fixed column; 8. Fixed frame; 9. Electric push rod; 10. Limiting plate; 11. Hinge; 12. Arc-shaped push plate; 13. Connecting rod; 14. Limiting block; 15. Spiral groove; 16. Connecting block; 17. Annular groove; 18. Eccentric wheel; 19. Connecting rod; 20. Top plate; 21. Sliding frame. Detailed Implementation
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical 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 utility model based on the specific circumstances.
[0024] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.
[0025] like Figure 1-4 As shown, a paper packaging bag compression and packing machine includes a machine body 1, a fixed column 7 is fixedly connected to the inner side of the machine body 1, a fixed frame 8 is fixedly connected to one end of the fixed column 7, and an electric push rod 9 is fixedly connected to the top of the fixed frame 8.
[0026] The output end of the electric push rod 9 is fixedly connected to a limiting plate 10. A hinge 11 is fixedly connected to one side of the limiting plate 10. An arc-shaped push plate 12 is hinged to the hinge 11. The arc-shaped push plate 12 can slide along the hinge 11 while it is hinged. The arc structure prevents the limiting plate 10 from being stuck when it is retracted. A connecting rod 13 is hinged to the end of the arc-shaped push plate 12 away from the hinge 11. A limiting block 14 is slidably connected to the middle of the connecting rod 13. The limiting block 14 is fixedly connected to the top of the fixed frame 8. A spiral groove 15 is provided at one end of the connecting rod 13. The spiral groove 15 is square.
[0027] One end of the connecting rod 13 is rotatably connected to the connecting block 16. An annular groove 17 is provided on one side of the connecting block 16. An eccentric wheel 18 is slidably connected to the bottom of the annular groove 17. The eccentric wheel 18 is connected to the connecting rod 13 through a spiral groove 15. A boss that matches the spiral groove 15 is provided on the inner side of the eccentric wheel 18. A connecting rod 19 is hinged to one side of the eccentric wheel 18. A top plate 20 is hinged to the other end of the connecting rod 19. A sliding frame 21 is fixedly connected to the bottom of the connecting block 16. The sliding frame 21 is fixedly connected to the top of the fixed frame 8. The top plate 20 is slidably connected to the sliding frame 21.
[0028] As a preferred technical solution of this utility model, a base 2 is fixedly connected to the bottom of the body 1.
[0029] As a preferred technical solution of this utility model, a conveying shaft 3 is rotatably connected to the inner side of the machine body 1.
[0030] As a preferred technical solution of this utility model, a compression frame 4 is fixedly connected to the top of the body 1.
[0031] As a preferred technical solution of this utility model, a hydraulic press 5 is fixedly connected to the middle of the compression frame 4.
[0032] As a preferred embodiment of this utility model, a compression plate 6 is fixedly connected to the output end of the hydraulic press 5.
[0033] As a preferred technical solution of this utility model, the top plate 20 is parallel to the conveying shaft 3 before movement and is located at the lowest point of the eccentric movement. When the limiting plate 10 moves to the top, the top plate 20 is also located at the highest point of the eccentric movement.
[0034] The work process is as follows:
[0035] After the packing process is completed, the boxes filled with shrink-wrapped bags are transported to the compression stage via conveyor shaft 3;
[0036] When the packaging box is about to reach the compression plate 6, the electric push rod 9 is activated. The electric push rod 9 drives the limit plate 10 to move upward. During the upward movement of the limit plate 10, the arc-shaped push plate 12 rotates. During the rotation, the center of the arc-shaped push plate 12 deviates, causing the connecting rod 13 to move horizontally along the limit block 14. The connecting rod 13 drives the eccentric wheel 18 to rotate through the spiral groove 15. The eccentric wheel 18 drives the connecting rod 19 to move eccentrically. The connecting rod 19 drives the top plate 20 to move vertically back and forth along the sliding frame 21.
[0037] After the packaging box reaches the limit plate 10, the electric push rod 9 closes, and the top plate 20 presses against the rear of the packaging box. During the transportation of the packaging box, the top plate 20 shakes the packaging box, causing any tilted packaging bags to slide down the inner wall of the packaging box, preventing the packaging bags from being crushed during compression. After the movement stops, the top plate 20 limits the rear of the packaging box to prevent the packaging box from rebounding and shifting position relative to the compression plate 6, which could cause the packaging box to be crushed.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A paper packaging bag compression and boxing machine, characterized in that: Includes a fuselage (1), with a fixed column (7) fixedly connected to the inner side of the fuselage (1), a fixed frame (8) fixedly connected to one end of the fixed column (7), and an electric push rod (9) fixedly connected to the top of the fixed frame (8). The output end of the electric push rod (9) is fixedly connected to a limiting plate (10). A hinge (11) is fixedly connected to one side of the limiting plate (10). An arc-shaped push plate (12) is hinged to the hinge (11). A connecting rod (13) is hinged to the end of the arc-shaped push plate (12) away from the hinge (11). A limiting block (14) is slidably connected to the middle of the connecting rod (13). The limiting block (14) is fixedly connected to the top of the fixed frame (8). A spiral groove (15) is provided at one end of the connecting rod (13). The spiral groove (15) is square. One end of the connecting rod (13) is rotatably connected to a connecting block (16). An annular groove (17) is provided on one side of the connecting block (16). An eccentric wheel (18) is slidably connected to the bottom of the annular groove (17). The eccentric wheel (18) is connected to the connecting rod (13) through the spiral groove (15). A connecting rod (19) is hinged to one side of the eccentric wheel (18). A top plate (20) is hinged to the other end of the connecting rod (19). A sliding frame (21) is fixedly connected to the bottom of the connecting block (16). The sliding frame (21) is fixedly connected to the top of the fixed frame (8). The top plate (20) is slidably connected to the sliding frame (21).
2. The paper packaging bag compression and boxing machine according to claim 1, characterized in that: The bottom of the fuselage (1) is fixedly connected to a base (2).
3. The paper packaging bag compression and boxing machine according to claim 1, characterized in that: The inner side of the body (1) is rotatably connected to a conveyor shaft (3).
4. The paper packaging bag compression and boxing machine according to claim 1, characterized in that: A compression frame (4) is fixedly connected to the top of the fuselage (1).
5. A paper packaging bag compression and boxing machine according to claim 4, characterized in that: A hydraulic press (5) is fixedly connected to the middle of the compression frame (4).
6. A paper packaging bag compression and boxing machine according to claim 5, characterized in that: A compression plate (6) is fixedly connected to the output end of the hydraulic press (5).
7. A paper packaging bag compression and boxing machine according to claim 1, characterized in that: Before the movement, the top plate (20) is located at the lowest point of the eccentric movement. When the limiting plate (10) moves to the top, the top plate (20) is also located at the highest point of the eccentric movement.