Automatic re-weighing and bagging equipment
By using a clamping structure and an electric push rod to drive the clamping plate to open the bag opening, the problems of insufficient vacuum adsorption force and high energy consumption are solved, enabling reliable opening of the bag opening and accurate bagging, thus reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-03
AI Technical Summary
Existing automatic powder packaging equipment often suffers from insufficient suction force and high energy consumption when opening bags through vacuum adsorption, resulting in high initial investment costs.
The bag uses a clamping plate structure with a locking groove at the bottom of the clamping plate. The clamping plate is driven by an electric push rod to open the bag opening, and the weighing is monitored by a weighing sensor and a display screen. Combined with the electric push rod and pressure plate to fix the bag opening, the bag opening can be reliably opened and the material can be accurately bagged.
This technology enables reliable opening of the bag opening, avoids the problem of insufficient adsorption force, and reduces energy consumption and initial investment costs while improving production efficiency.
Smart Images

Figure CN224075886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material bagging technology, specifically to an automatic re-weighing and bagging device. Background Technology
[0002] Traditional powder packaging relies on manual weighing and packaging, which not only poses a health risk due to dust inhalation but also severely impacts production efficiency due to the lack of manual operation. With the development of modern industry, powder packaging equipment has evolved into semi-automatic and fully automated mechanical packaging, which not only provides accurate weighing but also ensures good sealing.
[0003] For example, the announcement number CN204197311U describes an automatic powder weighing and packaging equipment. This equipment includes a support frame, a storage bin, a weighing funnel, a weight sensor, a feeding funnel, a bag feeding device, a cutting device, a sealing device, a fixed rod, a moving rod, and a conveyor belt. It uses a vacuum suction cup to grip and separate the two sides of the packaging bag, opening the bag mouth and avoiding the difficulty of separating plastic packaging bags due to static electricity. Then, it starts feeding the material and seals the bag after the process is completed.
[0004] The aforementioned device uses a vacuum suction cup to adsorb the two sides of the packaging bag to open the bag opening. However, this method is prone to insufficient suction force, which may prevent the bag opening from opening. Furthermore, the vacuum pump has high energy consumption and a large initial investment cost. Therefore, we propose an automatic re-weighing and bagging device to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide an automatic re-weighing and bagging device to solve the problems mentioned in the background art, such as the inability to open the bag opening by vacuum adsorption, the high energy consumption of the vacuum pump, and the large initial investment cost.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic re-weighing and bagging device, including a top frame, with a support installed at the bottom of the top frame;
[0007] Also includes:
[0008] The clamps are located below the top frame. There are two sets of clamps, with two clamps symmetrically arranged in each set. The clamps have an integrally formed locking groove inside, which connects the two ends and the bottom of the clamp. A hinge is provided above the two clamps in each set, and the two hinges are hinged to each other. The two clamps in each set can swing through the hinge. Both ends of each set of clamps are connected to a connecting seat, which connects the two sets of clamps. The clamps are hinged to the connecting seats. A connecting plate is installed at the bottom of the top frame, and there are two sets of connecting plates symmetrically arranged on the outside of the two sets of clamps.
[0009] Preferably, a first electric push rod is installed on the bottom outer side of the connecting plate, the connecting seat is connected to the first electric push rod by a telescopic rod, and the clamping plate is installed on the inner side of the connecting plate by the telescopic rod.
[0010] Preferably, a weighing sensor is installed on the upper end of the connecting plate and the weighing sensor is installed on the lower surface of the top frame. A display screen is installed on one side of the bracket, and the output end of the weighing sensor is electrically connected to the input end of the display screen.
[0011] Preferably, the surface of the top frame is integrally formed with a through groove, and a material conveying pipe is installed inside the through groove. One end of the material conveying pipe is connected to the storage bin, and the other end of the material conveying pipe extends to the top of the clamping plate. The material conveying pipe is fixed inside the through groove by a fixing bracket.
[0012] Preferably, a second electric push rod is installed on the outer side of the clamping plate, a pressure plate is movably engaged inside the engaging groove, and the second electric push rod is connected to the pressure plate through a connecting rod.
[0013] Preferably, a conveyor belt is installed on the inner side of the bracket, and the conveyor belt is located below the clamping plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] (1) By setting two sets of clamps at the bottom of the top frame, each set of clamps has two clamps and a locking groove at the bottom of the clamps. When the staff gets the bag, they put the edge of the bag opening into the locking groove at the bottom of the four clamps respectively. Then, by driving the electric push rod, the two sets of connecting seats move inward at the same time. Under the action of squeezing, the two sets of clamps that were originally closed can be opened, which can drive the bag opening to open, making it convenient to transport the material to the inside of the bag through the conveying pipe.
[0016] (2) By setting a pressure plate in the locking groove and setting an electric push rod on the outside of the clamping plate to drive the pressure plate to move, when the edge of the bag opening is locked into the locking groove, the pressure plate is driven to clamp and fix the bag opening, so that the bag is firmly installed at the bottom of the clamping plate, thus preventing the bag from falling off due to loosening or excessive material weight. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the clamping plate structure of this utility model;
[0019] Figure 3 This is a top view of the clamping plate of this utility model when it is open;
[0020] Figure 4This is a side view of the pressure plate of this utility model;
[0021] In the diagram: 1. Top frame; 2. Support; 3. Conveyor belt; 4. Display screen; 5. Material conveying pipe; 6. Through groove; 7. Fixing frame; 8. Connecting plate; 9. Clamping plate; 10. Weighing sensor; 11. First electric push rod; 12. Connecting seat; 13. Telescopic rod; 14. Second electric push rod; 15. Hinge; 16. Engaging groove; 17. Pressure plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] This utility model provides an automatic re-weighing and bagging device, which includes a top frame 1. The main problem this utility model solves is that methods that open bag openings via vacuum adsorption often result in insufficient adsorption force, preventing the bag opening from opening properly, and also suffer from high energy consumption of the vacuum pump and high initial investment costs.
[0024] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.
[0025] The clamping plates 9 are located below the top frame 1. There are two sets of clamping plates 9, with two clamping plates 9 symmetrically arranged in each set. The clamping plates 9 have an integrally formed engagement groove 16, which connects the two ends and the bottom of the clamping plates 9. A hinge 15 is provided above the two clamping plates 9 in each set, and the two hinge 15 are hinged to each other. The two clamping plates 9 in each set can swing through the hinge 15. Each end of each set of clamping plates 9 is connected to a connecting seat 12, which connects the two sets of clamping plates 9. The clamping plates 9 and the connecting seats 12 are connected to each other. The top frame 1 is hinged to the bottom of the top frame 1. The bottom of the top frame 1 is equipped with a connecting plate 8. The connecting plate 8 is provided with two sets and is symmetrically arranged on the outside of the two sets of clamping plates 9. The bottom outside of the connecting plate 8 is equipped with a first electric push rod 11. The connecting seat 12 is connected to the first electric push rod 11 through a telescopic rod 13. The clamping plate 9 is installed on the inside of the connecting plate 8 through the telescopic rod 13. The outside of the clamping plate 9 is equipped with a second electric push rod 14. The locking groove 16 is movably locked with a pressure plate 17. The second electric push rod 14 is connected to the pressure plate 17 through a connecting rod.
[0026] Please see Figure 1-2To further explain, a weighing sensor 10 is installed on the upper end of the connecting plate 8, and the weighing sensor 10 is installed on the lower surface of the top frame 1. A display screen 4 is installed on one side of the bracket 2, and the output end of the weighing sensor 10 is electrically connected to the input end of the display screen 4. The weighing sensor 10 weighs the bag containing the material and feeds the weight back to the surface of the display screen 4 for easy observation by the staff.
[0027] Please see Figure 1 To further explain, the top frame 1 has an integrally formed through groove 6, and a conveying pipe 5 is installed inside the through groove 6. One end of the conveying pipe 5 is connected to the storage bin, and the material inside the discharge bin is conveyed out through the conveying pipe 5 by the feeding motor. The other end of the conveying pipe 5 extends to the top of the clamping plate 9. The conveying pipe 5 is fixed inside the through groove 6 by the fixing bracket 7, and the fixing bracket 7 can prevent the conveying pipe 5 from loosening and causing displacement.
[0028] Please see Figure 1 To further explain, a conveyor belt 3 is installed on the inner side of the bracket 2, and the conveyor belt 3 is located below the clamping plate 9. After the bag containing the material is released, the bag naturally falls above the conveyor belt 3. The bag can be moved to the subsequent work station for packaging or sealing by driving the conveyor belt 3 with a motor.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An automatic re-weighing and bagging device, comprising a top frame (1), wherein a support (2) is installed at the bottom of the top frame (1); Its features are: Also includes: The clamping plate (9) is located below the top frame (1). There are two sets of clamping plates (9), and each set of clamping plates (9) has two symmetrically arranged clamping plates (9). The clamping plate (9) has an integrally formed locking groove (16) inside, and the locking groove (16) connects the two ends and the bottom of the clamping plate (9). A hinge (15) is provided above the two clamping plates (9) in each set. The two hinges (15) are hinged to each other, and the two clamping plates (9) in each set swing through the hinge (15). Each set of clamping plates (9) is connected to a connecting seat (12) at both ends. The connecting seat (12) connects the two sets of clamping plates (9), and the clamping plate (9) is hinged to the connecting seat (12). A connecting plate (8) is installed at the bottom of the top frame (1), and there are two sets of connecting plates (8) symmetrically arranged on the outside of the two sets of clamping plates (9).
2. The automatic re-weighing and bagging equipment according to claim 1, characterized in that: The bottom outer side of the connecting plate (8) is equipped with a first electric push rod (11), the connecting seat (12) and the first electric push rod (11) are connected by a telescopic rod (13), and the clamping plate (9) is installed on the inner side of the connecting plate (8) by the telescopic rod (13).
3. The automatic re-weighing and bagging equipment according to claim 1, characterized in that: A weighing sensor (10) is installed on the upper end of the connecting plate (8), and the weighing sensor (10) is installed on the lower surface of the top frame (1). A display screen (4) is installed on one side of the bracket (2), and the output end of the weighing sensor (10) is electrically connected to the input end of the display screen (4).
4. An automatic re-weighing and bagging device according to claim 1, characterized in that: The top frame (1) has an integrally formed through groove (6) on its surface. A conveying pipe (5) is installed inside the through groove (6). One end of the conveying pipe (5) is connected to the storage bin, and the other end of the conveying pipe (5) extends to the top of the clamp (9). The conveying pipe (5) is fixed inside the through groove (6) by a fixing bracket (7).
5. An automatic re-weighing and bagging device according to claim 1, characterized in that: A second electric push rod (14) is installed on the outside of the clamping plate (9), and a pressure plate (17) is movably engaged inside the engaging groove (16). The second electric push rod (14) is connected to the pressure plate (17) through a connecting rod.
6. An automatic re-weighing and bagging device according to claim 1, characterized in that: A conveyor belt (3) is installed on the inner side of the bracket (2), and the conveyor belt (3) is located below the clamp (9).
Citation Information
Patent Citations
Automatic powder weighing and packaging device
CN204197311U