Heating device of press vulcanizer

Abstract

The utility model relates to the technical field of press vulcanizers, in particular to a heating device of a press vulcanizer, which comprises an upper heating plate and a lower heating plate which can be close to each other or far away from each other, an upper embedding groove and a lower embedding groove are respectively arranged on opposite sides of the upper heating plate and the lower heating plate, and sealing washers are arranged in the upper embedding groove and the lower embedding groove. The shape of the sealing gasket is matched with the outer contour of the vulcanization mold, an upper medium inlet and an upper medium outlet which are communicated with the upper embedding groove are formed in the face, away from the upper embedding groove, of the upper heating plate, and a lower medium inlet and a lower medium outlet which are communicated with the lower embedding groove are formed in the face, away from the lower embedding groove, of the lower heating plate. According to the utility model, the upper surface and the lower surface of the vulcanization mold can be uniformly and efficiently heated, and the surface of the vulcanization mold is directly contacted with a high-temperature medium, so that the heat conduction effect is better, and heat conduction between the vulcanization mold and the heating plate is not influenced by impurities between the vulcanization mold and the heating plate.

Description

Technical Field

[0001] This utility model relates to the field of flat vulcanizing machine technology, specifically a heating device for a flat vulcanizing machine. Background Technology

[0002] Currently, flat vulcanizing machines are widely used in the vulcanization molding process of rubber products. They typically include an upper heating plate and a lower heating plate, with the vulcanizing mold positioned between them. The mold is heated by the heating plates to achieve the vulcanization reaction of the rubber material. Heating methods generally include electric heating, heat transfer oil heating, steam heating, or electromagnetic heating. However, in actual use, because the vulcanizing mold needs to be frequently removed and placed, impurities such as dust, oil, or rubber debris can easily remain on the contact surface between the mold and the heating plate. The presence of these impurities can lead to a large contact gap between the vulcanizing mold and the heating plate, thereby reducing heat transfer efficiency, affecting the heating uniformity and heating speed of the mold, and consequently adversely affecting the quality of the vulcanized product. To address the above problems, this utility model proposes a heating device for a flat vulcanizing machine. Utility Model Content

[0003] The purpose of this invention is to provide a heating device for a flat vulcanizing machine to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution:

[0005] A heating device for a flat vulcanizing machine includes an upper heating plate and a lower heating plate that can move closer to or further away from each other. An upper embedding groove and a lower embedding groove are respectively provided on opposite sides of the upper and lower heating plates. A sealing gasket is provided in both the upper and lower embedding grooves, and the shape of the sealing gasket is adapted to the outer contour of the vulcanizing mold. An upper medium inlet and an upper medium outlet, communicating with the upper embedding groove, are provided on the side of the upper heating plate opposite to the lower embedding groove. A lower medium inlet and a lower medium outlet, communicating with the lower embedding groove, are provided on the side of the lower heating plate opposite to the lower embedding groove. The top surface of the vulcanizing mold, the inner wall of the upper heating plate, and the sealing gasket located in the upper embedding groove together form an upper sealing cavity. The bottom surface of the vulcanizing mold, the inner wall of the lower heating plate, and the sealing gasket located in the lower embedding groove together form a lower sealing cavity.

[0006] Optionally, a base is provided on the side of the lower heating plate away from the upper heating plate, the upper heating plate and the base are fixedly connected by four connecting rods, the lower heating plate is slidably connected to the connecting rods, and a driving device is provided between the lower heating plate and the base to drive the upper heating plate and the lower heating plate to move closer or further away from each other.

[0007] Optionally, the driving device is a hydraulic cylinder.

[0008] Optionally, a support frame is fixedly installed at the bottom of the upper heating plate located on both sides of the upper embedded groove, and supports are provided on both sides of the vulcanizing mold. A clearance hole is provided on the lower heating plate corresponding to the position of the support frame.

[0009] Optionally, the support frame includes a bracket and a connecting shaft. The bracket has a Z-shaped cross-section. One end of the connecting shaft is fixed to the bottom of the upper heating plate, and the other end of the connecting shaft is fixed to the top of the bracket.

[0010] Optionally, the support includes a connecting column and a roller, one end of the connecting column is fixedly connected to the vulcanizing mold, and the other end of the connecting column is rotatably connected to the roller.

[0011] Optionally, a first limiting member is fixedly provided at one end of the bracket, and a rotatable second limiting member is provided at the other end of the bracket.

[0012] Optionally, the second limiting member is an L-shaped plate structure, and the second limiting member is rotatably connected to the end of the bracket via a rotating shaft.

[0013] Optionally, a circulating heating device is provided between the upper medium inlet and the upper medium outlet. The circulating heating device includes a storage tank, a circulating pump, a temperature detection device, and a heater. The storage tank, the circulating pump, the upper medium inlet, and the upper medium outlet are connected by pipelines. The temperature detection device and the heater are installed on the storage tank. The circulating heating device is also provided between the lower medium inlet and the lower medium outlet.

[0014] Optionally, the sealing gasket is made of perfluoroether rubber.

[0015] Compared with the prior art, this utility model provides a heating device for a flat vulcanizing machine, which has the following beneficial effects:

[0016] This invention features an upper embedding groove and a lower embedding groove on the upper and lower heating plates, respectively, with sealing gaskets installed in both grooves. This allows for uniform and efficient heating of both sides of the vulcanizing mold. Furthermore, since the surface of the vulcanizing mold is in direct contact with the high-temperature medium, heat conduction is improved, and impurities between the vulcanizing mold and the heating plate do not affect heat transfer.

[0017] By setting up a support frame and a support base, the vulcanizing mold can be placed on the support frame before vulcanizing heating. After adjusting the position of the vulcanizing mold, the lower heating plate can be driven to move up by the driving device. Compared with directly placing the vulcanizing mold on the lower heating plate and adjusting its position, this can reduce the mutual wear between the vulcanizing mold and the lower heating plate.

[0018] This invention, by providing a first limiting member and a second limiting member at each end of the bracket, prevents the rollers from slipping off the bracket, reducing the risk of the vulcanizing mold falling off. Furthermore, by rotating the second limiting member, the end of the bracket can be opened, facilitating the removal of the vulcanizing mold from the bracket. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the upper heating plate and support frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the lower heating plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the vulcanization mold structure of this utility model.

[0024] In the diagram: 100, upper heating plate; 110, upper embedded groove; 120, upper medium inlet; 130, upper medium outlet; 140, support frame; 141, bracket; 142, connecting shaft; 143, first limiting member; 144, second limiting member; 145, rotating shaft; 200, lower heating plate; 210, lower embedded groove; 220, lower medium inlet; 230, lower medium outlet; 240, clearance hole; 300, sealing gasket; 400, base; 500, connecting rod; 600, vulcanizing mold; 610, lower mold; 620, upper mold; 630, connecting column; 640, roller; 700, circulating heating device; 710, liquid storage tank; 720, circulating pump; 730, temperature detection device; 740, heater; 800, drive device. Detailed Implementation

[0025] 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.

[0026] Example: Please refer to Figures 1 to 5According to an embodiment of the present invention, a heating device for a flat vulcanizing machine is provided, including an upper heating plate 100 and a lower heating plate 200 that can move closer to or further away from each other. An upper embedding groove 110 and a lower embedding groove 210 are respectively provided on the opposite side of the upper heating plate 100 and the lower heating plate 200. A sealing gasket 300 is provided in both the upper embedding groove 110 and the lower embedding groove 210. The shape of the sealing gasket 300 is adapted to the outer contour of the vulcanizing mold 600. An upper medium inlet 120 and an upper medium outlet 130 communicating with the upper embedding groove 110 are provided on the side of the upper heating plate 100 away from the upper embedding groove 110. A lower medium inlet 220 and a lower medium outlet 230 communicating with the lower embedding groove 210 are provided on the side of the lower heating plate 200 away from the lower embedding groove 210.

[0027] The heating device of the flat vulcanizing machine with the above structure places the vulcanizing mold 600 between the upper heating plate 100 and the lower heating plate 200, and then pushes the upper heating plate 100 and the lower heating plate 200 closer to each other, so that the upper and lower surfaces of the vulcanizing mold 600 are respectively embedded in the upper embedding groove 110 and the lower embedding groove 210. The top surface of the vulcanizing mold 600, the inner wall of the upper heating plate 100 and the sealing gasket 300 together form the upper sealing cavity, and the bottom surface of the vulcanizing mold 600, the inner wall of the lower heating plate 200 and the sealing gasket 300 together form the lower sealing cavity. At this time, high-temperature medium (high-temperature liquid or gas) is injected into the upper sealing cavity and the lower sealing cavity through the upper medium inlet 120 and the lower medium inlet 220 respectively, so that uniform and efficient heating of the upper and lower surfaces of the vulcanizing mold 600 can be achieved. Moreover, since the surface of the vulcanizing mold 600 is in direct contact with the high-temperature medium, the heat conduction effect is better, and the heat conduction between the vulcanizing mold 600 and the heating plate will not be affected by impurities between the vulcanizing mold 600 and the heating plate.

[0028] In this exemplary embodiment, a base 400 is provided on the side of the lower heating plate 200 away from the upper heating plate 100. The upper heating plate 100 and the base 400 are fixedly connected by four connecting rods 500. The lower heating plate 200 is slidably connected to the connecting rods 500. A driving device 800 is provided between the lower heating plate 200 and the base 400 to drive the upper heating plate 100 and the lower heating plate 200 to move closer or further away from each other. Specifically, the driving device 800 can be a hydraulic cylinder. With the above arrangement, the driving device 800 can stably drive the lower heating plate 200 to move, so that the lower heating plate 200 can move closer or further away from the upper heating plate 100. In other embodiments, the upper heating plate 100 and the lower heating plate 200 can also be driven to move synchronously in opposite directions.

[0029] In this exemplary embodiment, a support frame 140 is fixedly installed at the bottom of the upper heating plate 100 located on both sides of the upper embedding groove 110. Supports protrude from both sides of the vulcanizing mold 600, and clearance holes 240 are provided on the lower heating plate 200 corresponding to the positions of the support frame 140. Specifically, the support frame 140 includes a bracket 141 and a connecting shaft 142. The bracket 141 has a Z-shaped cross-section. One end of the connecting shaft 142 is fixed to the bottom of the upper heating plate 100, and the other end is fixed to the top of the bracket 141. By providing the support frame 140 and supports, before vulcanization heating, the vulcanizing mold 600 can be placed on the support frame 140, its position adjusted, and then the lower heating plate 200 can be moved upwards by the driving device 800. Compared to directly placing the vulcanizing mold 600 on the lower heating plate 200 and adjusting its position, this reduces mutual wear between the vulcanizing mold 600 and the lower heating plate 200.

[0030] In this exemplary embodiment, the support includes a connecting column 630 and a roller 640. One end of the connecting column 630 is fixedly connected to the vulcanizing mold 600, and the other end of the connecting column 630 is rotatably connected to the roller 640. Specifically, in this embodiment, the vulcanizing mold 600 includes an upper mold 620 and a lower mold 610, which are connected by a hinge. The connecting column 630 is fixed to the side of the lower mold 610. With this configuration, when the vulcanizing mold 600 is placed on the support frame 140 and its front and rear positions are adjusted, the vulcanizing mold 600 contacts the bracket 141 of the support frame 140 through the roller 640. This reduces the friction between the support and the bracket 141, reduces wear, and makes the movement of the vulcanizing mold 600 smoother.

[0031] In this exemplary embodiment, a first limiting member 143 is fixedly provided at one end of the bracket 141, and a rotatable second limiting member 144 is provided at the other end of the bracket 141. Specifically, the second limiting member 144 has an L-shaped plate structure and is rotatably connected to the end of the bracket 141 via a pivot 145. This configuration, by providing the first limiting member 143 and the second limiting member 144 at both ends of the bracket 141, prevents the roller 640 from slipping off both ends of the bracket 141, reducing the risk of the vulcanizing mold 600 falling off. Furthermore, by rotating the second limiting member 144, the end of the bracket 141 can be opened, facilitating the removal of the vulcanizing mold 600 from the bracket 141.

[0032] In this exemplary embodiment, a circulating heating device 700 is provided between the upper medium inlet 120 and the upper medium outlet 130. The circulating heating device 700 includes a storage tank 710, a circulating pump 720, a temperature detection device 730, and a heater 740. The storage tank 710, the circulating pump 720, the upper medium inlet 120, and the upper medium outlet 130 are connected by pipelines. The temperature detection device 730 and the heater 740 are mounted on the storage tank 710. A circulating heating device 700 is also provided between the lower medium inlet 220 and the lower medium outlet 230. Specifically, in this embodiment, the temperature detection device 730 is a temperature sensor, and the heater 740 is a resistance heating plate. Specifically, during operation, the circulation pump 720 is started, causing the medium to flow in the circulation channel formed between the heater 740, the storage tank 710, the circulation pump 720, the upper medium inlet 120, and the upper medium outlet 130. When the medium reaches the storage tank 710, the temperature detection device 730 detects the temperature of the medium. If the temperature is insufficient, the heater 740 is started to heat the medium, thereby ensuring that the medium in the circulation channel is in a constant temperature state, ensuring that uniform and stable heating of the vulcanizing mold 600 can be achieved.

[0033] In this exemplary embodiment, the sealing gasket 300 is made of perfluoroelastomer rubber. Perfluoroelastomer rubber is a high-performance elastomer that maintains good physical and mechanical properties under extreme temperature conditions. Its continuous operating temperature range is approximately -25 to +327°C. Using perfluoroelastomer rubber for the sealing gasket 300 provides superior high-temperature resistance.

[0034] 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 heating device for a flat vulcanizing machine, characterized in that, The device includes an upper heating plate (100) and a lower heating plate (200) that can move closer to or further away from each other. The upper heating plate (100) and the lower heating plate (200) have an upper embedding groove (110) and a lower embedding groove (210) respectively on opposite sides. A sealing gasket (300) is provided in both the upper embedding groove (110) and the lower embedding groove (210). The shape of the sealing gasket (300) is adapted to the outer contour of the vulcanizing mold (600). An upper medium inlet (1) is provided on the side of the upper heating plate (100) facing away from the upper embedding groove (110), communicating with the upper embedding groove (110). 20) and upper medium outlet (130), the side of the lower heating plate (200) facing away from the lower embedded groove (210) is provided with a lower medium inlet (220) and a lower medium outlet (230) connected to the lower embedded groove (210); the top surface of the vulcanizing mold (600), the inner wall of the upper heating plate (100) and the sealing gasket (300) located in the upper embedded groove (110) together form an upper sealing cavity, the bottom surface of the vulcanizing mold (600), the inner wall of the lower heating plate (200) and the sealing gasket (300) located in the lower embedded groove (210) together form a lower sealing cavity.

2. The heating device for the flat vulcanizing machine according to claim 1, characterized in that: A base (400) is provided on the side of the lower heating plate (200) away from the upper heating plate (100). The upper heating plate (100) and the base (400) are fixedly connected by four connecting rods (500). The lower heating plate (200) is slidably connected to the connecting rods (500). A driving device (800) is provided between the lower heating plate (200) and the base (400) to drive the upper heating plate (100) and the lower heating plate (200) to move closer or further away from each other.

3. The heating device for the flat vulcanizing machine according to claim 2, characterized in that: The drive device (800) is a hydraulic cylinder.

4. The heating device for the flat vulcanizing machine according to claim 2, characterized in that: A support frame (140) is fixedly installed at the bottom of the upper heating plate (100) located on both sides of the upper embedded groove (110). Supports are provided on both sides of the vulcanizing mold (600). A clearance hole (240) is provided on the lower heating plate (200) corresponding to the position of the support frame (140).

5. The heating device for the flat vulcanizing machine according to claim 4, characterized in that: The support frame (140) includes a bracket (141) and a connecting shaft (142). The bracket (141) has a Z-shaped cross section. One end of the connecting shaft (142) is fixed to the bottom of the upper heating plate (100), and the other end of the connecting shaft (142) is fixed to the top of the bracket (141).

6. The heating device for the flat vulcanizing machine according to claim 5, characterized in that: The support includes a connecting column (630) and a roller (640). One end of the connecting column (630) is fixedly connected to the vulcanizing mold (600), and the other end of the connecting column (630) is rotatably connected to the roller (640).

7. The heating device for the flat vulcanizing machine according to claim 5, characterized in that: One end of the bracket (141) is fixedly provided with a first limiting member (143), and the other end of the bracket (141) is provided with a rotatable second limiting member (144).

8. The heating device for the flat vulcanizing machine according to claim 7, characterized in that: The second limiting member (144) has an L-shaped plate structure and is rotatably connected to the end of the bracket (141) via a rotating shaft (145).

9. The heating device for a flat vulcanizing machine according to any one of claims 1 to 7, characterized in that: A circulating heating device (700) is provided between the upper medium inlet (120) and the upper medium outlet (130). The circulating heating device (700) includes a liquid storage tank (710), a circulating pump (720), a temperature detection device (730), and a heater (740). The liquid storage tank (710), the circulating pump (720), the upper medium inlet (120), and the upper medium outlet (130) are connected by pipelines. The temperature detection device (730) and the heater (740) are installed on the liquid storage tank (710). The circulating heating device (700) is also provided between the lower medium inlet (220) and the lower medium outlet (230).

10. The heating device for a flat vulcanizing machine according to any one of claims 1 to 7, characterized in that: The sealing gasket (300) is made of perfluoroether rubber.

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