A fully automatic recycle unpacking machine for small-bag materials
By optimizing the structure of the fully automatic circulating unpacking machine and utilizing components such as screen plates and vertical baffles, the problem of incomplete material discharge from the bags has been solved, achieving a highly efficient automated unpacking process and reducing material waste and spillage on the ground.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JUYU TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-26
AI Technical Summary
Existing small bag unpacking machines fail to completely discharge the material from the bags after cutting, resulting in material waste and spillage on the ground.
A fully automatic circulating unpacking machine was designed, which adopts a structure including a screen plate, a cutting knife, vertical columns, a dome plate, and an inclined pressure frame. After the cutting knife cuts open the bag, the vertical columns and the dome plate work together to sweep the bag down and vibrate the screen plate, ensuring that the material falls completely.
It improved the quality of material discharge, reduced material waste and spillage on the ground, enhanced the functionality of the equipment, and achieved automated operation without human intervention.
Smart Images

Figure CN224277904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unpacking machine technology, specifically a fully automatic cyclic unpacking machine for small bagged materials. Background Technology
[0002] Small bag unpacking machines are devices used for unpacking. They are suitable for unpacking and unloading bagged powder and granular materials and are widely used in industries such as chemical, plastic, sewage treatment, and infrastructure. They are used to automatically unpack and unload dry powder and granular materials such as plastic additives, bagged cement, and sewage treatment clarifying agents.
[0003] Currently, most small bag unpacking machines on the market operate by manually placing the bags on top of a conveyor belt, which then transports them to the machine for cutting and dispensing. The bags then fall into a rotating mesh cylinder and are discharged. While this type of equipment can automate the unpacking process for small bags, it has significant drawbacks in practical use, such as:
[0004] After cutting the bag material, this type of equipment drops the material belt into the mesh cylinder for rotation. However, a small amount of material is still not discharged from the bag. As the conveyor bag is continuously transported, the bag material inside the mesh cylinder accumulates too much and forms a clump. This small amount of material is blocked by the bag and cannot be discharged through the mesh cylinder. It is eventually discharged from the unpacking machine along with the bag, resulting in a lot of material being spilled on the ground and wasting material.
[0005] Therefore, a fully automatic circulating unpacking machine for small-bag materials has been designed to improve the quality of material discharge and address these shortcomings. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a fully automatic circulating unpacking machine for small-bag materials, which solves the problem of poor material discharge that easily occurs in existing small-bag material unpacking machines.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic circulating unpacking machine for small bags, comprising an unpacking machine housing, with load-bearing side plates fixedly connected to both sides of the inner cavity of the unpacking machine housing, a screening screen plate on the top of the load-bearing side plates, and arc-head rods fixedly connected to both sides of the bottom of the screening screen plate, with a plurality of arc-head rods provided, the bottom ends of the arc-head rods penetrating through the load-bearing side plates and extending to the bottom of the load-bearing side plates, a cutting blade fixedly installed on the top of the screening screen plate, and side slide plates fixedly installed on both sides of the unpacking machine housing, with a curved frame slidably installed between two of the side slide plates.
[0008] Preferably, a sealing plate is fixedly installed on the front part of the inner side of the curved frame, and a concave frame is fixedly installed on the rear part of the sealing plate. A transverse groove is opened in the middle of the top of the concave frame, and rectangular spring grooves are opened on both sides of the top of the concave frame. A T-shaped plate is slidably installed on the inner side of the rectangular spring groove, and the bottom of the T-shaped plate is in contact with the top of the screen plate.
[0009] Preferably, the top of the curved frame is fixedly connected to an inclined pressure frame, and the inclined pressure frame is located at the top of the unpacking machine box. The lower parts of both sides of the rear of the sealing plate are fixedly connected to dome plates that cooperate with the arc head rod. A cylinder is fixedly installed on the rear side of the top of the unpacking machine box, and the front end of the cylinder is fixedly connected to the inclined pressure frame through a fixing plate.
[0010] Preferably, a vertical support column is slidably installed on the top of the unpacking machine box through an opening, and side insertion ports are provided on both sides of the vertical support column.
[0011] Preferably, both sides of the unpacking machine housing are equipped with positioning rods that cooperate with the side insertion ports through openings. The end of the positioning rod away from the unpacking machine housing is fixedly connected to a U-shaped frame, and a spring is fixedly installed on the surface of the positioning rod through a fixing plate.
[0012] Preferably, both sides of the top of the curved frame are fixedly installed with horizontal inclined plates that cooperate with the U-shaped frame by brackets.
[0013] Beneficial effects
[0014] This invention provides a fully automatic recycle unpacking machine for small-bag materials. Compared with existing technologies, it has the following advantages:
[0015] (1) The fully automatic circulating unpacking machine for small bag materials is designed with a horizontal groove on the top of the concave frame, and is used in conjunction with vertical columns, a screen plate and a dome plate. When using this structure, the cutting blade first cuts the bag to make most of the material fall down, and then the vertical columns are lowered by the cooperation between the structures. When the concave frame moves forward, the vertical columns sweep the bag onto the top of the screen plate with the opening facing down. Then, the dome plate continuously squeezes the arc head rod to drive the screen plate to vibrate up and down, so as to fully discharge the material in the material belt until the T-plate pushes the bag out from the rear, which effectively improves the quality of material discharge.
[0016] (2) The fully automatic circulating unpacking machine for small bags uses vertical baffles installed on the top of the unpacking machine box, along with inclined pressure frames, positioning rods and horizontal inclined plates. These structures allow the vertical baffles to be positioned high and not obstruct the bag material when the concave frame enters the unpacking machine box. When the concave frame is pushed out, the vertical baffles can be lowered and inserted into the inside of the horizontal groove. The vertical baffles sweep the discharged bags onto the top of the screen plate, facilitating subsequent vibration feeding. The whole process does not require the intervention of the staff, which improves the overall functionality of the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a sectional view of the unpacking machine casing structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the concave frame, transverse groove, and rectangular spring groove structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the screening mesh, cutting blade and arc-head rod of this utility model;
[0021] Figure 5 This is a schematic diagram of the vertical stop post, side insertion port, and positioning rod structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the unpacking machine casing, load-bearing side plate, and side sliding plate structure of this utility model.
[0023] In the diagram: 1. Unpacking machine chassis; 2. Load-bearing side plate; 3. Screening mesh plate; 4. Cutting knife; 5. Arc head rod; 6. Side slide plate; 7. Bending frame; 8. Sealing plate; 9. Concave frame; 10. Horizontal groove; 11. Rectangular spring groove; 12. T-shaped plate; 13. Dome plate; 14. Sloping pressure frame; 15. Cylinder; 16. Horizontal inclined plate; 17. Vertical stop column; 18. Side insertion port; 19. Positioning rod; 20. Recurved frame; 21. 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] Please see Figure 1-6This utility model provides a technical solution: a fully automatic circulating unpacking machine for small bagged materials, including an unpacking machine housing 1. Load-bearing side plates 2 are fixedly connected to both sides of the inner cavity of the unpacking machine housing 1. A screening screen 3 is provided on the top of the load-bearing side plates 2. Arc-head rods 5 are fixedly connected to both sides of the bottom of the screening screen 3, and several arc-head rods 5 are provided. The bottom end of the arc-head rods 5 penetrates through the load-bearing side plates 2 and extends to the bottom of the load-bearing side plates 2. A cutting blade 4 is fixedly installed on the top of the screening screen 3. Side sliding plates 6 are fixedly installed on both sides of the unpacking machine housing 1, and a curved frame 7 is slidably installed between two side sliding plates 6.
[0026] In use, first start the cylinder 15 to push the inclined pressure frame 14 and the curved frame 7 to move the sealing plate 8 forward as a whole, so that the concave frame 9 moves out of the unpacking machine box 1. Stop when the concave frame 9 has completely moved out of the unpacking machine box 1. At the same time, the inclined pressure frame 14 will insert into the inside of the vertical stop post 17 and lift the vertical stop post 17. After the vertical stop post 17 is lifted, the positioning rod 19 will insert into the inside of the side insertion port 18 to fix the vertical stop post 17. Then the staff will place the bag material inside the concave frame 9.
[0027] Furthermore, a sealing plate 8 is fixedly installed on the front part of the inner side of the curved frame 7, and a concave frame 9 is fixedly installed on the rear part of the sealing plate 8. The concave frame 9 does not contact the top of the screen plate 3 and has a height difference, allowing the screen plate 3 to vibrate up and down. A transverse groove 10 is opened in the middle of the top of the concave frame 9, and rectangular spring grooves 11 are opened on both sides of the top of the concave frame 9. A T-shaped plate 12 is slidably installed on the inner side of the rectangular spring groove 11. The T-shaped plate 12 is in a sliding state and can slide up and down with the screen plate 3 without causing contact. The bottom of 12 contacts the top of the screen plate 3. The top of the curved frame 7 is fixedly connected to the inclined pressure frame 14, and the inclined pressure frame 14 is located on the top of the unpacking machine box 1. The lower part of both sides of the rear of the sealing plate 8 is fixedly connected to the dome plate 13 that cooperates with the arc head rod 5. The rear side of the top of the unpacking machine box 1 is fixedly installed with a cylinder 15, and the front end of the cylinder 15 is fixedly connected to the inclined pressure frame 14 through a fixing plate. The top of the unpacking machine box 1 is slidably installed with a vertical stop column 17 through an opening. The vertical stop column 17 has side insertion ports 18 on both sides.
[0028] Both sides of the unpacking machine housing 1 are equipped with positioning rods 19 that cooperate with the side insertion ports 18 through openings. The end of the positioning rod 19 away from the unpacking machine housing 1 is fixedly connected to a U-shaped frame 20, and the surface of the positioning rod 19 is fixedly installed with a spring 21 through a fixing plate. Both sides of the top of the bent frame 7 are fixedly installed with a cross-sloping plate 16 that cooperates with the U-shaped frame 20 through brackets.
[0029] After the bag material is placed, the cylinder 15 is activated again to pull the concave frame 9 into the unpacking machine box 1. As the concave frame 9 moves, the cutting blade 4 cuts through the bottom of the bag material through the horizontal groove 10, allowing the material inside the bag to fall from the bottom through the concave frame 9 and the screen plate 3. After the concave frame 9 is fully inside the unpacking machine box 1, the two horizontal inclined plates 16 are inserted into the inside of the return frame 20. At this time, the two positioning rods 19 are pulled out from the inside of the side insertion port 18 under the pressure of the horizontal inclined plates 16. Then the vertical stop column 17 descends to the inside of the horizontal groove 10. After the material is discharged, the cylinder 15 is activated to push the concave frame 9 forward. At this time, the vertical stop column 17 will push the bag from the top of the concave frame 9 to the top of the screen plate 3. Then the dome plate 13 will continuously push the arc head rod 5 upward to drive the screen plate 3 to vibrate, so that all the material can fall. When the concave frame 9 enters again, the T-shaped plate 12 will push the bag out.
[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
Claims
1. A fully automatic recycle unpacking machine for small-bag materials, comprising an unpacking machine housing (1), characterized in that: The unpacking machine housing (1) has load-bearing side plates (2) fixedly connected to both sides of its inner cavity. A screen plate (3) is provided on the top of the load-bearing side plate (2). Arc-head rods (5) are fixedly connected to both sides of the bottom of the screen plate (3). Several arc-head rods (5) are provided. The bottom end of the arc-head rod (5) passes through the load-bearing side plate (2) and extends to the bottom of the load-bearing side plate (2). A cutting knife (4) is fixedly installed on the top of the screen plate (3). Side slide plates (6) are fixedly installed on both sides of the unpacking machine housing (1). A curved frame (7) is slidably installed between the two side slide plates (6).
2. The fully automatic circulating unpacking machine for small-bag materials according to claim 1, characterized in that: A sealing plate (8) is fixedly installed on the front part of the inner side of the curved frame (7), and a concave frame (9) is fixedly installed on the rear part of the sealing plate (8). A transverse groove (10) is opened in the middle of the top of the concave frame (9), and rectangular spring grooves (11) are opened on both sides of the top of the concave frame (9). A T-shaped plate (12) is slidably installed on the inner side of the rectangular spring groove (11), and the bottom of the T-shaped plate (12) is in contact with the top of the screen plate (3).
3. The fully automatic circulating unpacking machine for small-bag materials according to claim 2, characterized in that: The top of the curved frame (7) is fixedly connected to the inclined pressure frame (14), and the inclined pressure frame (14) is located at the top of the unpacking machine box (1). The lower parts of both sides of the rear of the sealing plate (8) are fixedly connected to the dome plate (13) that cooperates with the arc head rod (5). The rear side of the top of the unpacking machine box (1) is fixedly installed with a cylinder (15), and the front end of the cylinder (15) is fixedly connected to the inclined pressure frame (14) through a fixing plate.
4. The fully automatic circulating unpacking machine for small-bag materials according to claim 1, characterized in that: The top of the unpacking machine (1) is slidably fitted with a vertical stop (17) through an opening, and side insertion ports (18) are provided on both sides of the vertical stop (17).
5. The fully automatic circulating unpacking machine for small-bag materials according to claim 4, characterized in that: Both sides of the unpacking machine box (1) are slidably installed with positioning rods (19) that cooperate with the side insertion ports (18) through openings. The end of the positioning rod (19) away from the unpacking machine box (1) is fixedly connected to a U-shaped frame (20), and a spring (21) is fixedly installed on the surface of the positioning rod (19) through a fixing plate.
6. The fully automatic circulating unpacking machine for small-bag materials according to claim 5, characterized in that: Both sides of the top of the curved frame (7) are fixedly installed with crossbeams (16) that cooperate with the loop frame (20).