Aluminum foil nonwoven fabric heat sealing device
Patent Information
- Application Number
- CN202522678874.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-17
AI Technical Summary
Traditional aluminum foil nonwoven heat sealing devices are cumbersome and time-consuming to change heat sealing plates, which can easily lead to uneven heat sealing, affecting sealing quality and production efficiency. In addition, maintenance is complicated, increasing labor intensity and downtime.
Employing a multi-locking mechanism consisting of insert rods, locking blocks, and limit blocks, the heat-sealing plate can be quickly installed and removed through insertion and rotation operations. Tension springs and push springs provide elastic support and stable locking, ensuring precise positioning and smooth movement.
It significantly shortens the heat sealing plate replacement time, improves production flexibility and sealing quality, reduces labor intensity and downtime, enhances equipment stability and reliability, and avoids uneven heat sealing problems.
Smart Images

Figure CN224929359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foil nonwoven fabric heat sealing technology, and more specifically, it relates to an aluminum foil nonwoven fabric heat sealing device. Background Technology
[0002] In the heat-sealing process of aluminum foil nonwoven fabric, the heat-sealing device needs to achieve heat-melt sealing of packaging materials through the cooperation of the upper heat-sealing plate and the pad. Due to the differences in packaging specifications and material thickness, the upper heat-sealing plate needs to be easily and quickly replaced to adapt to the needs of multi-variety production. In the heat-sealing plate replacement and maintenance scenario, operators need to frequently replace upper heat-sealing plates of different specifications according to different packaging materials and sealing process requirements. The traditional heat-sealing plate fixing method uses bolt fastening or clip connection, and the installation and disassembly process is cumbersome and time-consuming. Each replacement requires the use of wrenches and other tools to tighten or loosen multiple fixing points one by one. A single replacement often takes several minutes or even longer. Moreover, repeated disassembly and assembly can easily lead to thread wear or loosening of connections. This not only greatly increases the changeover time and labor intensity, but also, due to the complexity of operation, it is easy to cause uneven heating or uneven pressure distribution of the heat-sealing plate due to improper installation, which seriously affects the sealing quality and production efficiency. Utility Model Content
[0003] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides an aluminum foil nonwoven fabric heat sealing device to solve the technical problems mentioned in the background art.
[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a heat-sealing device for aluminum foil nonwoven fabric, comprising a heat-sealing machine, a pad installed on the top surface of the heat-sealing machine, a pressure rod rotatably connected to one end of the heat-sealing machine, an installation plate inside the pressure rod, an upper heat-sealing plate fixedly installed at the bottom end of the installation plate, a fixing sleeve fixedly installed on the outer wall of the pressure rod, a pull rod rotatably installed at the top end of the fixing sleeve, multiple sets of pull rods being provided, each set of push rods being rotatably connected to its top end, a locking block being fixedly installed on the inner side of each set of push rods, an insert rod inserted into the pressure rod, the insert rod being inserted into the fixing sleeve and its top end abutting against a receiving plate, the receiving plate being rotatably connected to the top ends of the multiple sets of push rods, a connecting hole being opened in the installation plate, the insert rod being inserted into the connecting hole, and multiple sets of locking grooves opening and closing on the outer wall of the insert rod.
[0005] The present invention is further configured such that a push spring is connected to the inner side of the pressure rod, and multiple sets of push springs are provided, all of which abut against the mounting plate, providing multi-point elastic support and buffering effect to ensure that the mounting plate is subjected to uniform force.
[0006] The present invention is further provided that a tension spring is provided between the abutment plate and the fixing sleeve, and multiple sets of tension springs are provided to realize the elastic connection between the abutment plate and the fixing sleeve, and maintain appropriate tension and return capability.
[0007] The present invention is further configured such that a limiting sleeve is slidably provided on the outer wall of the fixed sleeve, and the limiting sleeve abuts against the outer wall of multiple sets of pull rods to limit the range of motion of the pull rods and prevent the pull rods from deviating from the predetermined track.
[0008] The present invention is further configured such that a rotating sleeve is rotatably provided on the outer wall of the fixed sleeve, a support rod is fixedly provided on the top surface of the rotating sleeve, multiple sets of the support rod are provided and each of them is fixedly provided with a limiting block on its outer wall, and a limiting block is fixedly provided on the outer wall of the limiting sleeve. Multiple sets of the limiting block are provided and each of them is provided with a limiting groove, forming a complete rotation positioning and limiting mechanism to ensure that the device is accurately positioned during rotation.
[0009] The present invention is further configured such that a guide block is fixedly provided on the inner side of the limiting sleeve, and a guide groove is provided on the outer wall of the fixed sleeve. Multiple sets of guide blocks and guide grooves are provided and slidably connected to provide linear guidance and ensure that the limiting sleeve slides smoothly along a fixed direction.
[0010] The present invention is further configured such that a positioning strip is fixedly provided on the inner side of the fixing sleeve, and a positioning groove is provided on the outer wall of the insertion rod. Multiple sets of positioning strips and positioning grooves are provided and slidably connected to achieve precise positioning and anti-rotation function of the insertion rod, thereby enhancing the overall structural stability.
[0011] The present invention is further configured such that all of the multiple sets of limiting blocks and limiting grooves are arc-shaped, providing smooth rotational movement and better contact area, reducing wear and extending service life.
[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a heat-sealing device for aluminum foil nonwoven fabric, which has the following beneficial effects: 1. By using a fixed sleeve on the outer wall of the pressure rod and an insert rod with a connecting hole in the mounting plate, the operator only needs to insert the insert rod into the connecting hole and into the fixed sleeve to drive the pull rod and push rod to automatically engage the locking block into the slot. Then, rotating the rotating sleeve drives the support rod to insert the limit block into the limit slot to achieve secondary limiting. The entire installation process requires no tools and is simple and quick to operate, significantly reducing the time required for a single replacement. It is particularly suitable for multi-variety production scenarios that require frequent replacement of the heat-sealing plate according to different packaging materials and sealing process requirements. It effectively solves the problems of long changeover time and complex operation caused by traditional bolt fixing methods, significantly improves the equipment's rapid changeover capability and production flexibility, reduces the labor intensity of changeover and downtime, and avoids the problem of uneven heating or uneven pressure distribution of the heat-sealing plate due to improper installation, thereby improving the stability of sealing quality and product qualification rate.
[0013] 2. Employing a multi-locking mechanism with a locking block engaging the locking groove and a limiting block inserting into the limiting groove, maintenance personnel only need to rotate the rotating sleeve to disengage the limiting block from the limiting groove and release the restriction on the limiting sleeve when the heat-sealing plate needs to be disassembled for cleaning, maintenance, or replacement. The spring return force automatically pulls the abutment plate to disengage the locking block from the locking groove, and then the insertion rod can be pulled out directly to complete the disassembly. The disassembly and assembly process does not require special tools such as wrenches and the operation steps are simple, effectively reducing the maintenance workload and equipment downtime. At the same time, the abutment cooperation of multiple sets of push springs with the mounting plate provides stable support and reset driving force for the mounting plate, ensuring that the mounting plate moves smoothly without tilting or jamming during the disassembly and assembly process, improving the convenience and reliability of maintenance operations. It is particularly suitable for flexible production scenarios that require frequent cleaning of heat-sealing plate surface residues and replacement of heat-sealing plates of different specifications.
[0014] 3. Through a dual locking mechanism of distributed locking of multiple sets of card blocks and insertion of limit blocks into limit slots, a stable locking force is formed by the continuous elasticity provided by tension springs and push springs. This effectively resists the mechanical stress and thermal stress cyclic load generated by the repeated lifting and lowering of the pressure rod, ensuring that the heat-sealing plate will not loosen or shift its position due to thermal expansion and contraction and vibration impact during long-term operation. This guarantees the continuous stability of the sealing position accuracy and sealing strength, reducing the workload of frequent inspection and tightening. At the same time, the guiding cooperation between the positioning strip and the positioning slot ensures the precise positioning of the insertion rod, and the sliding connection between the guide block and the guide slot provides accurate axial movement guidance for the limit sleeve, extending the service life of the fixing mechanism under high-frequency reciprocating loads, improving the continuous stable operation capability and reliability of the equipment, and avoiding the risk of equipment damage or safety hazards caused by the sudden detachment of the heat-sealing plate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an aluminum foil nonwoven fabric heat sealing device according to the present invention; Figure 2This is a structural schematic diagram of the upper heat-sealing plate in the fixed state in this utility model; Figure 3 This is a schematic diagram of the structure in which the fixing sleeve and the insertion rod are snapped together in this utility model; Figure 4 This is a cross-sectional view of the fixed sleeve and the insertion rod in the present invention. Figure 5 This is a cross-sectional view of the fixing sleeve in this utility model.
[0016] In the diagram: 1. Heat sealing machine; 2. Pad; 3. Pressure rod; 4. Mounting plate; 5. Upper heat sealing plate; 6. Fixing sleeve; 7. Pull rod; 8. Push rod; 9. Locking block; 10. Insert rod; 11. Abutment plate; 12. Connecting hole; 121. Locking groove; 13. Push spring; 14. Tension spring; 15. Limiting sleeve; 16. Rotating sleeve; 17. Support rod; 18. Limiting block; 19. Restricting block; 20. Limiting groove; 21. Guide block; 22. Guide groove; 23. Positioning strip; 24. Positioning groove. Detailed Implementation
[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0020] Please see Figures 1-5 A heat-sealing device for aluminum foil nonwoven fabric includes a heat-sealing machine 1, a pad 2 installed on the top surface of the heat-sealing machine 1, a pressure rod 3 rotatably connected to one end of the heat-sealing machine 1, an installation plate 4 inside the pressure rod 3, an upper heat-sealing plate 5 fixed at the bottom end of the installation plate 4, a fixing sleeve 6 fixed on the outer wall of the pressure rod 3, a pull rod 7 rotatably connected to the top of the fixing sleeve 6, multiple sets of pull rods 7, each with a push rod 8 rotatably connected to its top, a locking block 9 fixed inside the multiple sets of push rods 8, an insert rod 10 inserted into the pressure rod 3, the insert rod 10 inserted into the fixing sleeve 6, and an abutment plate 11 abutting its top end, the abutment plate 11 rotatably connected to the top ends of the multiple sets of push rods 8, a connecting hole 12 opened in the installation plate 4, the insert rod 10 inserted into the connecting hole 12, and multiple sets of locking grooves 121 opening and closing on the outer wall of the insert rod 10.
[0021] In this embodiment, during use, the upper heat-sealing plate 5 is installed, the mounting plate 4 abuts against multiple sets of push springs 13, the insert rod 10 is inserted into the pressure rod 3 and inserted into the connecting hole 12, the top of the insert rod 10 is inserted into the fixing sleeve 6 and pushes the abutment plate 11 to stretch multiple sets of tension springs 14, so that the abutment plate 11 and multiple sets of pull rods 7 drive the push rod 8 to make the locking block 9 engage in the locking groove 121 to lock the insert rod 10, push the limiting sleeve 15 to abut against the outer wall of multiple sets of pull rods 7, and then rotate the rotating sleeve 16 to drive multiple sets of support rods 17 to rotate, so that the limiting block 18 is inserted into the limiting groove 20 to limit the limiting sleeve 15, thereby completing the installation of the upper heat-sealing plate 5. By pressing the pressure rod 3, the upper heat-sealing plate 5 is lowered and abuts against the pad plate 2 to perform heat-sealing of the packaging.
[0022] Please see Figures 3-5 As a further implementation of the overall equipment: a push spring 13 is connected to the inner side of the pressure rod 3, and multiple sets of push springs 13 are provided, all of which abut against the mounting plate 4.
[0023] A tension spring 14 is provided between the abutment plate 11 and the fixing sleeve 6, and multiple sets of tension springs 14 are provided. The outer wall of the fixed sleeve 6 is provided with a limiting sleeve 15, which abuts against the outer wall of multiple sets of tie rods 7.
[0024] The outer wall of the fixed sleeve 6 is provided with a rotating sleeve 16, and the top surface of the rotating sleeve 16 is provided with a support rod 17. Multiple sets of support rods 17 are provided, and each of them is provided with a limiting block 18. The outer wall of the limiting sleeve 15 is provided with a limiting block 19, and multiple sets of limiting blocks 19 are provided, each of which has a limiting groove 20 on its outer wall.
[0025] A guide block 21 is fixedly provided on the inner side of the limiting sleeve 15, and a guide groove 22 is provided on the outer wall of the fixing sleeve 6. Multiple sets of guide blocks 21 and guide grooves 22 are provided and are slidably connected.
[0026] The inner side of the fixed sleeve 6 is fixedly provided with a positioning strip 23, and the outer wall of the insertion rod 10 is provided with a positioning groove 24. The positioning strip 23 and the positioning groove 24 are provided in multiple sets and are slidably connected.
[0027] The multiple sets of limiting blocks 18 and limiting grooves 20 are all set to be arc-shaped.
[0028] More specifically, when it is necessary to disassemble the mounting plate 4, rotating the rotating sleeve 16 causes multiple sets of limiting blocks 18 to disengage from the limiting groove 20, releasing the restriction on the limiting sleeve 15. Multiple sets of tension springs 14 pull the abutment plate 11 and push the insertion rod 10. Multiple sets of push rods 8 rotate along the abutment plate 11 and drive the locking block 9 to disengage from the locking groove 121. Then, the insertion rod 10 can be pulled out of the fixing sleeve 6 and the connecting hole 12 to disassemble the mounting plate 4.
[0029] In summary, during the use or operation of the overall equipment: When in use, the upper heat-sealing plate 5 is installed, the mounting plate 4 abuts against multiple sets of push springs 13, the insert rod 10 is inserted into the pressure rod 3 and connected to the connection hole 12, the top of the insert rod 10 is inserted into the fixing sleeve 6 and pushes the abutment plate 11 to stretch multiple sets of tension springs 14, causing the abutment plate 11 and multiple sets of pull rods 7 to drive the push rod 8, causing the locking block 9 to engage in the locking groove 121 to engage the insert rod 10, pushing the limiting sleeve 15 to abut against the outer wall of the multiple sets of pull rods 7, and then rotating the rotating sleeve 16 to drive the multiple sets of support rods 17 to rotate, causing the limiting block 18 to engage in the limiting groove 20 to restrict the limiting sleeve 15, thus completing the installation of the upper heat-sealing plate 5. By pressing the pressure rod 3, the upper heat-sealing plate 5 is lowered and abuts against the pad 2 to perform heat-sealing of the packaging.
[0030] When it is necessary to disassemble the mounting plate 4, rotating the rotating sleeve 16 causes multiple sets of limiting blocks 18 to disengage from the limiting groove 20, releasing the restriction on the limiting sleeve 15. Multiple sets of tension springs 14 pull the abutment plate 11 and push the insertion rod 10. Multiple sets of push rods 8 rotate along the abutment plate 11 and drive the locking block 9 to disengage from the locking groove 121. Then, the insertion rod 10 can be pulled out of the fixing sleeve 6 and the connecting hole 12 to disassemble the mounting plate 4.
[0031] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. 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. A heat-sealing device for aluminum foil nonwoven fabric, comprising a heat-sealing machine (1), characterized in that: The heat sealing machine (1) is equipped with a pad plate (2) on its top surface. A pressure rod (3) is rotatably connected to one end of the heat sealing machine (1). An installation plate (4) is provided inside the pressure rod (3). An upper heat sealing plate (5) is fixedly provided at the bottom end of the installation plate (4). A fixing sleeve (6) is fixedly provided on the outer wall of the pressure rod (3). A pull rod (7) is rotatably provided at the top end of the fixing sleeve (6). The pull rod (7) is provided with multiple sets, and each set of push rods (8) is rotatably connected at its top end. A locking block (9) is fixedly provided on the inner side of each set of push rods (8). An insert rod (10) is inserted into the pressure rod (3). The insert rod (10) is inserted into the fixing sleeve (6) and its top end abuts against a stop plate (11). The stop plate (11) is rotatably connected to the top end of the multiple sets of push rods (8). A connection hole (12) is opened in the installation plate (4). The insert rod (10) is inserted into the connection hole (12). Multiple slots (121) are opened and closed on the outer wall of the insert rod (10).
2. The aluminum foil nonwoven fabric heat sealing device according to claim 1, characterized in that: The inner side of the pressure rod (3) is connected to a push spring (13), and multiple sets of push springs (13) are provided, all of which abut against the mounting plate (4).
3. The aluminum foil nonwoven fabric heat sealing device according to claim 2, characterized in that: A tension spring (14) is provided between the abutment plate (11) and the fixing sleeve (6), and multiple sets of tension springs (14) are provided.
4. The aluminum foil nonwoven fabric heat sealing device according to claim 3, characterized in that: The outer wall of the fixed sleeve (6) is provided with a limiting sleeve (15), which abuts against the outer wall of the multiple sets of tie rods (7).
5. The aluminum foil nonwoven fabric heat sealing device according to claim 4, characterized in that: The outer wall of the fixed sleeve (6) is provided with a rotating sleeve (16), and the top surface of the rotating sleeve (16) is provided with a support rod (17). The support rod (17) is provided with multiple sets and each of them is provided with a limiting block (18). The outer wall of the limiting sleeve (15) is provided with a limiting block (19). The limiting block (19) is provided with multiple sets and each of them has a limiting groove (20) on its outer wall.
6. The aluminum foil nonwoven fabric heat sealing device according to claim 5, characterized in that: The inner side of the limiting sleeve (15) is fixedly provided with a guide block (21), and the outer wall of the fixed sleeve (6) is provided with a guide groove (22). The guide block (21) and the guide groove (22) are provided in multiple sets and are slidably connected.
7. The aluminum foil nonwoven fabric heat sealing device according to claim 6, characterized in that: The inner side of the fixed sleeve (6) is fixedly provided with a positioning strip (23), and the outer wall of the insertion rod (10) is provided with a positioning groove (24). The positioning strip (23) and the positioning groove (24) are provided in multiple sets and are slidably connected.
8. The aluminum foil nonwoven fabric heat sealing device according to claim 7, characterized in that: The multiple sets of limiting blocks (18) and limiting grooves (20) are all set to be arc-shaped.
