An anti-sticking device for sealing rice packaging
By designing a fixing block for the anti-sticking device and a heat-resistant protective layer, combined with a resistive temperature sensor, the problem of sticking during the heating process of rice packaging sealing devices was solved, achieving stability and safety in sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HUAZHONGHUA AGRI DEV CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-07
AI Technical Summary
Existing rice packaging sealing devices are prone to sticking to the packaging bag during the heating process, which damages the integrity of the packaging and affects sales.
An anti-adhesion device was designed, which limits the packaging bag by a combination of a fixing block and a through hole, and uses a heat-resistant material protective layer for protection. At the same time, a resistance temperature sensor is introduced to monitor the temperature of the heating plate in real time to ensure that the sealing operation is carried out at a suitable temperature.
This effectively prevents the packaging bag from sticking to the heating element, ensuring the stability and safety of the sealing device, preventing damage to the packaging bag, and improving the reliability and safety of the sealing operation.
Smart Images

Figure CN224466293U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice processing technology, specifically to an anti-sticking device for sealing rice packaging. Background Technology
[0002] Rice packaging sealing equipment is a key piece of machinery used in the rice processing and packaging process. Its main function is to fill rice into packaging bags and then seal them to ensure the freshness and quality of the rice are maintained. Rice packaging sealing equipment typically includes a conveyor system for transporting processed rice from one part of the production line to the packaging area. This is usually a system with a conveyor belt that can automatically feed the rice to the packaging machine. Secondly, the sealing machine is responsible for sealing the opening of the packaging bag, using different working principles such as heat sealing, cold sealing, and ultrasonic sealing.
[0003] Existing packaging sealing devices on the market generally seal the packaging bag by directly heating and melting the opening, which then forms an adhesive after cooling. However, in actual use, the packaging bag tends to stick to the heating element during the heating process. Forcibly tearing it off may damage the integrity of the packaging, making it unsellable. Therefore, we have proposed an anti-adhesion device for sealing rice packaging. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an anti-sticking device for sealing rice packaging. This solves the problem that during actual use, the packaging bag easily sticks to the heating element itself during heating, and forcibly tearing it may damage the integrity of the packaging, making it impossible to sell normally.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] An anti-sticking device for sealing rice packaging includes a contact plate, mounting plates fixedly installed on both sides of the contact plate, a fixing rod fixedly installed on the top surface of the mounting plate, a fixing block provided on the top surface of the contact plate, the fixing block and the outer walls of the two fixing rods being fixedly installed together, a through hole being opened on the top surface of the fixing block, and a protective layer being fixedly installed inside the through hole, the interior of the protective layer being made of heat-resistant material.
[0007] Preferably, a friction pad is fixedly installed on the top surface of the contact plate, the friction pad is made of rubber, and a threaded hole is provided on the top surface of the mounting plate.
[0008] Preferably, the top surface of the fixed block is provided with a sliding block, the sliding block is a T-shaped block structure, and the bottom surface of the sliding block is provided with a snap-fit groove, the inside of which a heating plate is snapped.
[0009] Preferably, a first sliding rod is fixedly installed on the top surface of the fixed rod, a fixed groove is provided on both sides of the sliding block, a fixed ring is fixedly installed inside the fixed groove, two fixed rings are respectively sleeved with two first sliding rods, and a connecting sleeve is fixedly installed on the top surface of the sliding block.
[0010] Preferably, the top surface of the sliding block has a through hole, and the through hole is connected to the snap-fit groove.
[0011] Preferably, the bottom surface of the sliding block has two sliding holes, and a second sliding rod is engaged inside the sliding holes. The second sliding rod consists of a cylindrical part and a disc part. A spring is sleeved on the outer wall of the cylindrical part of the second sliding rod. The spring is limited by the disc part of the second sliding rod and the inner bottom surface of the sliding holes. A pressing block is fixedly installed at the end of the cylindrical part of the second sliding rod away from the disc part.
[0012] In summary, the present invention has the following main advantages:
[0013] 1. By setting a fixing block, and through the design of the fixing block and the through hole, on the one hand, the fixing block can form a gap with the top surface of the conveyor belt to limit the packaging bag and ensure that the sealing work can be carried out normally. On the other hand, after heating and pressing to seal, it can ensure that the sealing device can press down normally and block the packaging bag itself. If the heating time is too long, the sealing device can be lifted to separate the packaging bag and the device through the fixing block to avoid adhesion. At the same time, through the design of the protective layer, the inner wall of the through hole can be protected to prevent damage to the inner wall of the through hole during the lifting of the sealing device.
[0014] 2. By setting through holes, it can communicate with the inside of the snap-fit slot. During the use of the device, a resistance temperature sensor can be inserted into it to monitor the inside of the heating plate in real time. The sealing operation can only be performed when the temperature reaches a certain level, avoiding adhesion caused by excessive time during slow heating and increasing the safety of the device. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the sliding block structure of this utility model.
[0018] Reference numerals: 1. Contact plate; 2. Mounting plate; 3. Fixing rod; 4. Fixing block; 5. Through hole; 6. Protective layer; 7. Friction pad; 8. Threaded hole; 9. Sliding block; 10. Heating plate; 11. Snap-fit groove; 12. Fixing groove; 13. Fixing ring; 14. Connecting sleeve; 15. First sliding rod; 16. Through hole; 17. Sliding hole; 18. Second sliding rod; 19. Spring; 20. Pressing block. Detailed Implementation
[0019] 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.
[0020] refer to Figures 1-3 An anti-sticking device for sealing rice packaging includes a contact plate 1, with mounting plates 2 fixedly installed on both sides of the contact plate 1. A fixing rod 3 is fixedly installed on the top surface of the mounting plate 2. A fixing block 4 is provided on the top surface of the contact plate 1. The fixing block 4 and the outer walls of the two fixing rods 3 are fixedly installed together. A through hole 5 is formed on the top surface of the fixing block 4, and a protective layer 6 is fixedly installed inside the through hole 5. The interior of the protective layer 6 is made of heat-resistant material. Through the design of the fixing block 4 and the through hole 5, the fixing block 4 can contact the top surface of the conveyor belt. The gap is formed to limit the packaging bag and ensure that the sealing work can be carried out normally. On the other hand, after heating and pressing to seal, it can ensure that the sealing device can press down normally and block the packaging bag itself. If the heating time is too long, the sealing device can be lifted to separate the packaging bag and the device through the fixing block 4 to avoid adhesion. At the same time, the design of the protective layer 6 can protect the inner wall of the through hole 5 and prevent damage to the inner wall of the through hole 5 during the lifting of the sealing device.
[0021] A friction pad 7 is fixedly installed on the top surface of the contact plate 1. The friction pad 7 is made of rubber. A threaded hole 8 is opened on the top surface of the mounting plate 2. The design of the friction pad 7 can increase the friction at the contact position between the device and the transmission device, increase the stability of the device and prevent slippage and tilting. The design of the threaded hole 8 can directly connect the device body and the conveyor belt to ensure the stability of the device.
[0022] The top surface of the fixed block 4 is provided with a sliding block 9, which is a T-shaped block structure. The bottom surface of the sliding block 9 is provided with a snap-fit groove 11, and a heating plate 10 is snapped into the inside of the snap-fit groove 11. The heating plate 10 is designed to be a structure that is already available on the market. The heating plate 10 is heated by an internal heating resistor. When it is heated to a certain temperature, the heating device is pressed down manually or by an external driving device to complete the sealing operation of the device.
[0023] A first sliding rod 15 is fixedly installed on the top surface of the fixed rod 3. Fixed grooves 12 are provided on both sides of the sliding block 9. Fixed rings 13 are fixedly installed inside the fixed grooves 12. The two fixed rings 13 are respectively sleeved with the two first sliding rods 15. Through the design of the fixed rings 13 and the first sliding rods 15, the sliding block 9 can be installed on the one hand, and the sliding trajectory of the sliding block 9 can be restricted on the other hand, ensuring that it slides along the specified trajectory. A connecting sleeve 14 is fixedly installed on the top surface of the sliding block 9. Through the design of the connecting sleeve 14, it can be installed with the telescopic end of an external drive device, such as an electric push rod, etc., to seal the rice bag manually or automatically as needed.
[0024] The top surface of the sliding block 9 is provided with a through hole 16, which is connected to the snap-fit groove 11. Through the design of the through hole 16, it can be connected to the inside of the snap-fit groove 11. During the use of the device, a resistance temperature sensor can be inserted into it to monitor the inside of the heating plate 10 in real time. Only when it is heated to a certain temperature can the sealing operation be performed to avoid adhesion caused by excessive time during slow heating and to increase the safety of the device.
[0025] Two sliding holes 17 are provided on the bottom surface of the sliding block 9. A second sliding rod 18 is engaged inside the sliding holes 17. The second sliding rod 18 consists of a cylindrical part and a disc part. A spring 19 is sleeved on the outer wall of the cylindrical part of the second sliding rod 18. The spring 19 is limited by the disc part of the second sliding rod 18 and the inner bottom surface of the sliding hole 17. Through the design of the spring 19, the second sliding rod 18 can be limited, ensuring that when the sealing element is lifted after sealing, the second sliding rod 18 quickly returns to its original position under the combined action of the spring 19 and its own weight, which is convenient for the next use. A pressing block 20 is fixedly installed at the end of the cylindrical part of the second sliding rod 18 away from the disc part. Through the design of the pressing block 20, the two sides of the packaging bag can be pressed and limited during the sealing process, so as to prevent the packaging bag from shifting due to external force during heating, which would lead to sealing failure.
[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An anti-sticking device for sealing rice packaging, comprising a contact plate (1), characterized in that, Mounting plates (2) are fixedly installed on both sides of the contact plate (1). A fixing rod (3) is fixedly installed on the top surface of the mounting plate (2). A fixing block (4) is provided on the top surface of the contact plate (1). The fixing block (4) and the outer walls of the two fixing rods (3) are fixedly installed together. A through hole (5) is opened on the top surface of the fixing block (4). A protective layer (6) is fixedly installed inside the through hole (5). The inside of the protective layer (6) is made of heat-resistant material.
2. The anti-sticking device for sealing rice packaging according to claim 1, characterized in that, A friction pad (7) is fixedly installed on the top surface of the contact plate (1). The friction pad (7) is made of rubber. A threaded hole (8) is opened on the top surface of the mounting plate (2).
3. The anti-sticking device for sealing rice packaging according to claim 1, characterized in that, The top surface of the fixed block (4) is provided with a sliding block (9), which is a T-shaped block structure. The bottom surface of the sliding block (9) is provided with a snap-fit groove (11), and a heating plate (10) is snapped into the inside of the snap-fit groove (11).
4. The anti-sticking device for sealing rice packaging according to claim 3, characterized in that, The top surface of the fixed rod (3) is fixedly installed with a first sliding rod (15). The two sides of the sliding block (9) are provided with fixed grooves (12). The inside of the fixed groove (12) is fixedly installed with a fixed ring (13). The two fixed rings (13) are respectively sleeved with the two first sliding rods (15). The top surface of the sliding block (9) is fixedly installed with a connecting sleeve (14).
5. The anti-sticking device for sealing rice packaging according to claim 4, characterized in that, The top surface of the sliding block (9) is provided with a through hole (16), and the through hole (16) is connected to the snap-fit groove (11).
6. The anti-sticking device for sealing rice packaging according to claim 4, characterized in that, The bottom surface of the sliding block (9) has two sliding holes (17). A second sliding rod (18) is engaged inside the sliding hole (17). The second sliding rod (18) consists of a cylindrical part and a disc part. A spring (19) is sleeved on the outer wall of the cylindrical part of the second sliding rod (18). The spring (19) is limited by the disc part of the second sliding rod (18) and the bottom surface of the sliding hole (17). A pressing block (20) is fixedly installed at the end of the cylindrical part of the second sliding rod (18) away from the disc part of the second sliding rod (18).