High frequency rubber heat sealer

Abstract

The utility model relates to the technical field of heat sealing machine especially relates to a high frequency rubber heat sealing machine, including operation platform, the upper end fixed mounting of operation platform has the center platform, both sides of center platform all are assembled with the support frame setting, the support frame is right angle bending structure, and the upper end horizontal position is fixed with cylinder and penetrates, the inside of cylinder is provided with the piston rod for driving, the piston rod end of cylinder fixed assembly has the electrified seat, the inside embedding of electrified seat installs heat pressure head. This scheme adopts the support frame and cylinder combination structure of symmetrical distribution, makes heat pressure head more stable and accurate in the process of moving up and down, effectively avoids the deflection or vibration problem of traditional equipment because of uneven stress, thereby guarantees the alignment accuracy of mould and pressure head in the heat sealing process, simultaneously, the carousel drives multiple mould seats to rotate circularly, realizes the continuous operation, reduces the downtime change mould time, and the production efficiency is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing machine technology, and in particular to a high-frequency rubber heat sealing machine. Background Technology

[0002] A rubber heat sealing machine is a device used for heat-sealing rubber materials. It bonds two or more pieces of rubber together through the action of heat and pressure. This equipment is widely used in the production process of rubber products, such as tires, seals, and hoses.

[0003] The working principle of a rubber heat sealing machine is to use a heating element to heat the rubber material to a certain temperature, and then press two or more pieces of rubber material together under pressure, so that they are bonded together under high temperature and high pressure. For example, the prior art Chinese patent publication number "CN220331778U" provides a rubber shoe sole hot pressing molding device, including a rubber shoe sole processing table. The middle of the rubber shoe sole processing table is provided with a groove. A rotating plate is rotatably connected in the groove. Hot pressing molding grooves are provided at the top and bottom of the rotating plate. A hot pressing molding plate is rotatably connected to one side of the groove. A closing cylinder is provided on one side of the hot pressing molding plate. The advantages of this invention are as follows: By setting a motor-driven rotating plate on the rubber sole processing table, the upper and lower hot pressing forming grooves on the rotating plate can be used alternately. When the upper hot pressing forming groove completes the sole forming, the motor is started to rotate the rotating plate 180 degrees, and the sole in the hot pressing forming groove falls downward to complete the demolding. At the same time, the other hot pressing forming groove cooperates with the hot pressing forming plate to perform a new hot pressing forming, which shortens the hot pressing forming interval of the device, increases the frequency, and improves the production efficiency of rubber soles.

[0004] Currently, the core components used in heat sealing rubber products are a heat press head and a mold base. These two components are non-standard. In addition to these two components, there are also adjustment components for the general mating of the heat press head and the mold base. Conventional adjustment components mainly use multiple screws for connecting the heat press head. When alternating processing, it is necessary to remove each screw one by one with a screwdriver, which is relatively cumbersome. At the same time, in order to improve processing efficiency, multiple mold bases need to be used in conjunction. Therefore, it is also necessary to improve the flexibility of switching between multiple mold bases quickly. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a high-frequency rubber heat sealing machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a high-frequency rubber heat sealing machine, including an operating table, a central platform fixedly installed at the upper end of the operating table, and support frames mounted on both sides of the central platform. The support frames are right-angle bent structures, and a cylinder is fixedly fixed through the upper horizontal position. A piston rod for driving is installed inside the cylinder. The piston rod end of the cylinder is fixedly fitted with an electrical socket, and a hot press head is embedded inside the electrical socket; Bearings are fixedly installed on both sides of the operating table. A shaft is installed through and with an interference fit on the inner ring wall of the bearing. A turntable is fixedly installed on the upper end of the shaft. Several mold seats are distributed and fixed on the upper end of the turntable, and any one of the mold seats is matched with the hot press head.

[0007] Preferably, the piston rod of the cylinder is symmetrically fixed with connecting plates one at both ends, and the two ends of the power socket are fixedly installed with connecting plates two corresponding to the positions of connecting plates one, and the connecting plates two and connecting plates one are tightly attached to each other.

[0008] Preferably, both the interior of the first connecting plate and the interior of the second connecting plate are provided with built-in holes, and the same fastening bolt is installed through the interior of the two built-in holes distributed along one side.

[0009] Preferably, the other end of the fastening bolt is threaded with a threaded cap, one side of which is tightly fitted to the surface of the connecting plate, and several knobs are fixedly distributed on the outer ring wall of the threaded cap.

[0010] Preferably, both sides of the operating table are fixedly installed with positioning frames by screws. The positioning frames are L-shaped and a positioning sleeve is fixed through the horizontal position of the positioning frame.

[0011] Preferably, a positioning pin is slidably provided inside the positioning sleeve, and a spring is wound around the surface of the positioning pin. The two ends of the spring are fixedly installed to the end of the positioning pin and the end face of the positioning sleeve, respectively.

[0012] Preferably, a plurality of positioning seats are fixedly distributed at the lower end of the turntable, and the positions of the positioning seats correspond one-to-one with the positions of the mold seats. The end of the positioning pin away from the spring slides and inserts into the interior of the positioning seat.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application: 1. This solution adopts a symmetrically distributed support frame and cylinder combination structure, which makes the hot press head more stable and precise during the up and down movement. It effectively avoids the misalignment or vibration problems caused by uneven force in traditional equipment, thereby ensuring the alignment accuracy of the mold and the press head during the heat sealing process. At the same time, the turntable drives multiple mold seats to rotate in a cycle, realizing continuous operation, reducing downtime for mold changing, and greatly improving production efficiency. 2. As described in 1, the combination of connecting plate and fastening bolts achieves a reliable connection between cylinder piston rod and power socket, which not only enhances structural rigidity but also facilitates later maintenance or replacement of parts. As a transition structure, power socket protects cylinder from direct heat conduction and simplifies circuit wiring, making the temperature control of heating element more precise and stable. 3. As described in section 2, the combination of spring-return locating pin and locating seat enables rapid identification and fixation of the mold station. Operators can easily switch and lock the mold seat, avoiding the risks caused by misoperation. The mechanical positioning method does not require electrical intervention, has a simple and reliable structure, and is suitable for high-frequency and high-intensity production environments. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a partially enlarged schematic diagram of the cylinder and hot press head of this utility model; Figure 3 This is a bottom view of the overall bottom of this utility model; Figure 4 For the present utility model Figure 3 Enlarged diagram of point A.

[0015] In the diagram: 1. Operating table; 11. Center table; 12. Cylinder; 13. Power socket; 14. Hot press head; 15. Support frame; 16. Bearing; 17. Shaft; 18. Mold holder; 19. Turntable; 2. Connecting plate one; 21. Connecting plate two; 22. Fastening bolt; 23. Threaded cap; 3. Positioning frame; 31. Positioning sleeve; 32. Positioning pin; 33. Spring; 34. Positioning seat. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-4 A high-frequency rubber heat sealing machine includes an operating table 1. A central platform 11 is fixedly installed on the upper end of the operating table 1. Support frames 15 are installed on both sides of the central platform 11. The support frames 15 have a right-angle bent structure, and a cylinder 12 is fixedly installed horizontally at the upper end. The cylinder 12 has a piston rod for driving inside. Through the piston rod of the cylinder 12, the hot press head 14 can move up and down, so as to be inserted and matched with the mold seat 18. The cylinder 12 can be stably installed based on the support frame 15. A power supply base 13 is fixedly mounted on the piston rod end of the cylinder 12. A hot press head 14 is embedded inside the power supply base 13. The power supply base 13 can serve as a transition connection to prevent the cylinder 12 from being directly connected to the hot press head 14. A heating wire is embedded inside the hot press head 14. After the power supply base 13 is installed with the hot press head 14, its terminals can be connected to the heating wire. The power supply base 13 is also connected to an external temperature control switch. Ultimately, the temperature of the heating wire can be controlled, so that the hot press head 14 can heat to the specified heat sealing temperature. Bearings 16 are fixedly installed on both sides of the operating table 1. A shaft 17 is installed through and with an interference fit on the inner ring wall of the bearing 16. A turntable 19 is fixedly installed on the upper end of the shaft 17. Several mold seats 18 are fixedly distributed on the upper end of the turntable 19. Any mold seat 18 is engaged with the hot press head 14. The shaft 17 can rotate based on the bearing 16, thereby making the turntable 19 rotate stably and driving the multiple mold seats 18 to rotate and switch positions. Rubber raw materials that need to be heat-sealed can be placed in the mold seat 18. The hot press head 14 is inserted and connected to the mold seat 18, thereby allowing the two rubber raw materials to be heat-pressed together.

[0018] The piston rod of cylinder 12 is symmetrically fixed with connecting plate 12 at both ends, and connecting plate 21 corresponding to the position of connecting plate 12 is fixedly installed at both ends of the power supply base 13. Connecting plate 21 and connecting plate 12 are tightly attached to each other. After connecting plate 12 and connecting plate 21 are attached to each other, the piston rod end of cylinder 12 and power supply base 13 can be stably installed.

[0019] Both the connecting plate 1 2 and the connecting plate 2 21 have internal holes. The same fastening bolt 22 is installed through the two internal holes distributed along one side. The fastening bolt 22 can pass through the connecting plate 1 2 and the connecting plate 2 21 to position the two connecting plates.

[0020] The other end of the fastening bolt 22 is threaded with a threaded cap 23. One side of the threaded cap 23 is tightly attached to the surface of the connecting plate 2. Several knobs are fixed on the outer ring wall of the threaded cap 23. The threaded cap 23 can be rotated by the knobs, so that the threaded cap 23 can be threadedly installed with the fastening bolt 22. Thus, the connecting plate 2 and the connecting plate 21 can be fixed, and the piston rod of the cylinder 12 can be fixed to the power supply seat 13.

[0021] The operating table 1 has a positioning frame 3 fixedly installed on both sides by screws. The positioning frame 3 has an L-shaped structure. A positioning sleeve 31 is fixed through the horizontal position of the positioning frame 3. By extending the positioning frame 3, the position of the positioning sleeve 31 can be extended outward as much as possible, which facilitates the manual operation of the positioning pin 32 through the positioning sleeve 31 by technicians.

[0022] The positioning sleeve 31 has a slidably penetrating positioning pin 32 inside, and a spring 33 is wound around the surface of the positioning pin 32. The two ends of the spring 33 are fixedly installed to the end of the positioning pin 32 and the end face of the positioning sleeve 31, respectively. The spring 33 can ensure the stable extension and resetting of the positioning pin 32. The positioning pin 32 has a hand-pulled structure, which is simple, flexible and quick to operate.

[0023] The turntable 19 has several fixed positioning seats 34 at its lower end. The positions of the positioning seats 34 correspond one-to-one with the positions of the mold seats 18. The end of the positioning pin 32 away from the spring 33 slides into the interior of the positioning seat 34. When it is necessary to switch between adjacent mold seats 18, the positioning pin 32 is pulled, which stretches the spring 33 and separates the positioning pin 32 from the current positioning seat 34. By rotating the turntable 19, multiple mold seats 18 can be switched. Then, after the positioning seat 34 in the new position, i.e. the mold seat 18, is switched to the designated position, the positioning pin 32 is released. By inserting and docking the positioning pin 32 with the positioning seat 34 in the new position, the position of the turntable 19 after rotation can be fixed. Through fixed-point switching and adjustment, the hot press head 14 can stably perform heat sealing processing docking with each mold seat 18.

[0024] Working method: This solution uses the reciprocating motion of the piston rod inside the cylinder 12 to drive the hot pressing head 14 to make vertical displacement, so that it can be accurately inserted into the mold base 18. The hot pressing head 14 is embedded with an electric heating wire, and the power supply base 13 serves as an electrical connection and mechanical transition component. On the one hand, it is fixed to the end of the piston rod of the cylinder 12, and on the other hand, it is connected to the electric heating wire of the hot pressing head 14 through an internal terminal. The power supply base 13 is then connected to an external temperature control switch, allowing the operator to accurately set and adjust the working temperature of the electric heating wire, thereby controlling the hot pressing head 14 to reach the specified heat sealing temperature. The turntable 19 is fixed to the upper end of the shaft 17 and supported on the operating table 1 by the bearing 16, so that the turntable 19 can rotate stably around the shaft 17. Multiple mold seats 18 are distributed on the turntable 19, and each mold seat 18 can hold the rubber raw material to be heat-sealed. When it is necessary to change the processing position, the operator manually pulls the positioning pin 32 outward to overcome the elastic force of the spring 33 and remove it from the current positioning seat 34, thereby releasing the circumferential constraint of the turntable 19. After rotating the turntable 19 to the target position, the positioning pin 32 is released, and the spring 33 pushes it to insert into the positioning seat 34 corresponding to the new position, so as to achieve precise circumferential positioning of the turntable 19 and ensure that the hot press head 14 can be accurately aligned with each mold seat 18, thus ensuring the repeatability accuracy of continuous heat sealing operations. The piston rod end of the cylinder 12 is symmetrically fixed with a connecting plate 1 2, while the connecting plate 21 fixed to the power supply base 13 is locked by fastening bolts 22 passing through the internal holes of both plates and tightening with threaded caps 23. This detachable connection method not only ensures the reliability of force transmission between the cylinder 12 and the power supply base 13, but also facilitates maintenance and replacement. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-frequency rubber heat sealing machine, comprising an operating table (1), characterized in that: The upper end of the operating table (1) is fixedly installed with a central platform (11), and support frames (15) are installed on both sides of the central platform (11). The support frame (15) is a right-angle bent structure, and a cylinder (12) is fixed through the upper horizontal position. A piston rod for driving is provided inside the cylinder (12). The piston rod end of the cylinder (12) is fixedly fitted with an electrical socket (13), and a hot press head (14) is embedded inside the electrical socket (13). Bearings (16) are fixedly installed on both sides of the operating table (1). A shaft (17) is installed through and interference fit on the inner ring wall of the bearing (16). A turntable (19) is fixedly installed on the upper end of the shaft (17). Several mold seats (18) are distributed and fixed on the upper end of the turntable (19). Any mold seat (18) is matched with the hot press head (14).

2. The high-frequency rubber heat sealing machine according to claim 1, characterized in that: The piston rod of the cylinder (12) is symmetrically distributed and fixed with connecting plate one (2) at both ends. The two ends of the power socket (13) are fixedly installed with connecting plate two (21) corresponding to the position of connecting plate one (2). Connecting plate two (21) and connecting plate one (2) are tightly attached to each other.

3. A high-frequency rubber heat sealing machine according to claim 2, characterized in that: Both the interior of the connecting plate 1 (2) and the interior of the connecting plate 2 (21) are provided with built-in holes, and the same fastening bolt (22) is installed through the interior of the two built-in holes distributed along one side.

4. A high-frequency rubber heat sealing machine according to claim 3, characterized in that: The other end of the fastening bolt (22) is threaded with a threaded cap (23). One side of the threaded cap (23) is tightly attached to the surface of the connecting plate (2). Several knobs are fixedly distributed on the outer ring wall of the threaded cap (23).

5. A high-frequency rubber heat sealing machine according to claim 4, characterized in that: Both sides of the operating table (1) are fixedly installed with positioning frames (3) by screws. The positioning frames (3) are L-shaped structures, and positioning sleeves (31) are fixed through the horizontal position of the positioning frames (3).

6. A high-frequency rubber heat sealing machine according to claim 5, characterized in that: The positioning sleeve (31) is provided with a slidably penetrating positioning pin (32), and a spring (33) is wound around the surface of the positioning pin (32). The two ends of the spring (33) are fixedly installed with the end of the positioning pin (32) and the end face of the positioning sleeve (31), respectively.

7. A high-frequency rubber heat sealing machine according to claim 6, characterized in that: The lower end of the turntable (19) is fixed with several positioning seats (34). The positions of the positioning seats (34) correspond one-to-one with the positions of the mold base (18). The end of the positioning pin (32) away from the spring (33) slides into the positioning seat (34).

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