Tire mold heating device and tire mold

Abstract

The utility model discloses a heating device for a tire mold and the tire mold, and belongs to the technical field of tire vulcanization. The tire mold heating device comprises an electromagnetic heating frame, an electric heating coil and a magnetizer; the electromagnetic heating frame comprises an upper supporting ring, a lower supporting ring, a first connecting plate and a plurality of wire arranging combs; the two axial ends of the first connecting plate are connected with the upper supporting ring and the lower supporting ring correspondingly. The wire arranging comb is arranged on the outer side of the first connecting plate and is used for fixing the electric heating coil; the magnetizer is located on the outer side of the electric heating coil and fixed to the electromagnetic heating frame. The tire mold comprises the tire mold heating device. According to the tire mold heating device, the electromagnetic heating frame is used for bearing the electric heating coil and the magnetizer, so that the tire mold heating device can be modularly applied, and a plurality of petals are arranged on a tire mold; disassembly and assembly are simple, and installation and replacement time is short.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization technology, specifically to a heating device for tire molds and a tire mold. Background Technology

[0002] Tire vulcanization requires a high-pressure, high-temperature vulcanization environment within the vulcanization mold. Currently, steam heating is widely used, but it has low energy conversion efficiency and high energy waste, and is gradually being replaced by electric heating vulcanization. There are also specialized electric heating devices for heating the outer periphery of the tire mold. These typically involve creating grooves around the mold and embedding electric heating elements, but this method suffers from inflexible design and relatively cumbersome maintenance. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a heating device for tire molds and a tire mold. The heating device can be modularly installed in the heating part of the tire mold, making it convenient to use and highly versatile.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] On one hand, this utility model provides a tire mold heating device, including an electromagnetic heating frame, an electric heating coil, and a magnetic conductor; the electromagnetic heating frame includes an upper support ring, a lower support ring, a first connecting plate, and a plurality of wire guides; the two ends of the first connecting plate are respectively connected to the upper support ring and the lower support ring; the wire guides are disposed on the outside of the first connecting plate for fixing the electric heating coil; the magnetic conductor is located on the outside of the electric heating coil and fixed on the electromagnetic heating frame.

[0006] In the above-mentioned tire mold heating device, a plurality of the thread combs are arranged circumferentially along the first connecting plate and spaced apart.

[0007] In the above-mentioned tire mold heating device, the thread comb includes at least a first thread comb piece, and the outer side surface of the first thread comb piece is provided with a plurality of first grooves, and the plurality of first grooves are arranged in the length direction of the first thread comb piece.

[0008] In the above-mentioned tire mold heating device, the thread comb further includes a second thread comb blade, which is parallel to the first thread comb blade; the second thread comb blade is provided with a plurality of second grooves, and the positions of the first groove and the second groove correspond to each other.

[0009] In the above-mentioned tire mold heating device, the magnetic conductor is located between the second and first wire-guiding comb pieces of the same wire-guiding comb; a support strip is provided between the upper and lower support rings, and the support strip blocks the outside of the magnetic conductor;

[0010] And / or, the second groove is located on the inner side surface of the second thread comb;

[0011] And / or, the second thread comb is fixedly connected to at least one of the upper support ring, the lower support ring, and the first connecting plate;

[0012] And / or, the first cable management comb is fixedly connected to at least one of the upper support ring, the lower support ring, and the first connecting plate.

[0013] In the above-mentioned tire mold heating device, the electric heating coils are arranged in a U-shape; an auxiliary connecting plate is fixed on the electromagnetic heating frame, and the auxiliary connecting plate is located outside the first connecting plate for fixing the rotating part of the electric heating coils.

[0014] In the above-mentioned tire mold heating device, a second connecting plate is provided between the electric heating coil and the magnetic conductor.

[0015] In the above-mentioned tire mold heating device, the second connecting plate is a PTFE plate or a mica plate;

[0016] And / or, the two ends of the second connecting plate are respectively fixed to the upper support ring and the lower support ring;

[0017] And / or, the magnetic conductor is fixed to the outer surface of the second connecting plate.

[0018] In the above-mentioned tire mold heating device, the upper support ring, the lower support ring, and the wire comb are made of non-magnetic metal material;

[0019] And / or, the outer perimeter of the electromagnetic heating frame is covered with a cover plate.

[0020] On the other hand, this utility model provides a tire mold, including the aforementioned tire mold heating device.

[0021] The beneficial effects of this utility model are as follows:

[0022] The tire mold heating device uses an electromagnetic heating frame to support the electric heating coil and the magnetic conductor, which allows the tire mold heating device to be used in a modular manner and set up in multiple segments on the tire mold; it is easy to disassemble and assemble, and the installation and replacement time is short.

[0023] The distance between the electric heating coil and the connecting plate can be adjusted using a cable comb to regulate the heating effect.

[0024] Meanwhile, the electromagnetic heating frame can be connected to the tire mold in various ways, which can be selected according to the actual application, making it highly adaptable; the overall structure is compact and will not take up too much extra space. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the tire mold heating device of this utility model;

[0026] Figure 2 This is a schematic diagram of the first embodiment of the wire comb in a tire mold heating device of this utility model;

[0027] Figure 3 This is a schematic diagram of the second embodiment of the wire comb in a tire mold heating device of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the first embodiment of the tire mold of this utility model;

[0029] Figure 5 for Figure 4 A magnified view of area A in the middle;

[0030] Figure 6 This is a schematic diagram of the structure of a second embodiment of the tire mold of this utility model.

[0031] In the picture:

[0032] 1-Upper support ring; 2-Lower support ring; 3-First connecting plate; 4-First wire comb; 5-Second wire comb; 6-Electric heating coil; 7-Support bar; 8-Auxiliary connecting plate; 9-Second groove; 10-First groove; 11-Magnetic conductor; 13-Cover plate; 14-Mold sleeve. Detailed Implementation

[0033] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0034] On the one hand, please refer to Figure 1-5 This invention provides an embodiment of a tire mold heating device, which includes an electromagnetic heating frame, an electric heating coil 6, and several magnetic conductors 11. The electromagnetic heating frame is connected and fixed to the tire mold, and provides mounting support for the electric heating coil 6 and the magnetic conductors 11.

[0035] The electromagnetic heating frame includes an upper support ring 1, a lower support ring 2, a first connecting plate 3, and a wire comb. The upper support ring 1, lower support ring 2, first connecting plate 3, and wire comb are fixedly connected to each other to form a frame structure. Preferably, the upper support ring 1, lower support ring 2, first connecting plate 3, and wire comb are welded together. The upper support ring 1 and lower support ring 2 are located at opposite ends of the first connecting plate 3 along its axial direction and are fixedly connected. The upper support ring 1 and lower support ring 2 are used to connect with the tire mold, and the connection method can be set according to the actual application environment. For example, through holes are machined on the upper support ring 1 and lower support ring 2, and they are detachably connected to the tire mold using bolts, screws, or other connecting parts. Since electromagnetic heating does not require the first connecting plate 3 to be tightly fitted to the tire mold, the shape of the first connecting plate 3 can be set as needed. Preferably, the shape of the first connecting plate 3 is adapted to the shape of the heating part of the tire mold; for example, the first connecting plate 3 is an arc-shaped plate.

[0036] The cable management comb is located on the outside of the first connecting plate 3; multiple cable management combs can be provided as needed, and the multiple cable management combs are arranged circumferentially along the first connecting plate 3 at intervals. The electric heating coil 6 is an electromagnetic reaction heating coil, arranged in a U-shape; the multiple cable management combs on the first connecting plate 3 work together to shape the electric heating coil 6.

[0037] It should be noted that the "inner" and "outer" of the tire mold heating device refer to the side facing or close to the tire mold during use, while the opposite side is the "outer". The inner side of the first connecting plate 3 is the side of the first connecting plate 3 facing the tire mold. The terms "inner" and "outer" in the following text have the same meaning.

[0038] Each cable management comb includes at least one first cable management comb blade 4, which is fixedly connected to at least one of the upper support ring 1, the lower support ring 2, and the first connecting plate 3. For example, the inner side of the first cable management comb blade 4 is welded to the first connecting plate 3, and the two end faces of the first cable management comb blade 4 are welded to the upper support ring 1 and the lower support ring 2, respectively. The outer side of the first cable management comb blade 4 is provided with a plurality of first grooves 10, which are U-shaped grooves. The plurality of first grooves 10 are arranged between the upper support ring 1 and the lower support ring 2. The electric heating coil 6 is located in the first groove 10.

[0039] Furthermore, each cable management comb includes not only a first cable management comb blade 4, but also a second cable management comb blade 5. The second cable management comb blade 5 is fixedly connected to at least one of the upper support ring 1, the lower support ring 2, and the first connecting plate 3, preferably in a detachable connection. Figure 2As shown, the second thread-guiding comb 5 is parallel to the first thread-guiding comb 4, with a set gap between them. The second thread-guiding comb 5 has several second grooves 9, and the positions of the first grooves 10 and the second grooves 9 correspond to each other, that is, one first groove 10 corresponds to one second groove 9. The second grooves 9 can open on the outer surface of the second thread-guiding comb 5, such as... Figure 3 As shown; an opening can also be made on the inner side of the second thread comb 5, such as Figure 2 As shown; preferably, the second groove 9 is open on the inner side of the second wire comb 5, that is, the groove opening of the second groove 9 faces the first connecting plate 3, while the groove opening of the first groove 10 on the first wire comb 4 is away from the first connecting plate 3; in this way, when the electric heating coil 6 is located in the first groove 10 and the second groove 9, the second wire comb 5 and the first wire comb 4 are respectively positioned on the inner and outer sides of the electric heating coil 6; at this time, the second wire comb 5 is preferably detachably connected to the upper support ring 1, the lower support ring 2 and the first connecting plate 3, which facilitates the disassembly and assembly of the electric heating coil 6.

[0040] The first connecting plate 3 is also provided with an auxiliary connecting plate 8, which is located outside the first connecting plate 3, preferably between the first connecting plate 3 and the electric heating coil 6; the auxiliary connecting plate 8 is fixedly connected to at least one of the upper support ring 1, the lower support ring 2, and the first connecting plate 3. The straight part of the electric heating coil 6 is positioned by the wire comb, while the rotating part can be fixed on the auxiliary connecting plate 8.

[0041] The magnetic conductor 11 is distributed within the cavity between the first and second wire-guiding comb plates 4 and 5 within the same wire-guiding comb, and is located outside the electric heating coil 6. The magnetic conductor 11 can better fix the electric heating coil 6 and guide the direction of the magnetic field lines. A support strip 7 is provided between the upper support ring 1 and the lower support ring 2, with its two ends connected to the upper support ring 1 and the lower support ring 2, respectively. The position of the support strip 7 corresponds to the position of the wire-guiding comb, blocking the outside of the magnetic conductor 11 and confining the magnetic conductor 11 within the wire-guiding comb.

[0042] Furthermore, a second connecting plate (not shown in the figure) is provided on the outside of the electric heating coil 6. The second connecting plate is a PTFE plate or a mica plate. The second connecting plate is located between the electric heating coil 6 and the magnetic conductor 11, and serves as heat insulation. Preferably, the magnetic conductor 11 is fixed to the outer surface of the second connecting plate 12. The connection method between the magnetic conductor 11 and the second connecting plate can be adhesive bonding, snap-fitting, bolt connection, etc. The two ends of the second connecting plate are fixed to the upper support ring 1 and the lower support ring 2 with high-temperature resistant plastic screws.

[0043] The upper support ring 1, lower support ring 2, and cable comb are made of aluminum or other non-magnetic metal materials such as copper.

[0044] Furthermore, the outer perimeter of the electromagnetic heating frame is wrapped with a cover plate 13. The cover plate 13 is made of aluminum plate or other non-magnetic metal materials, which can not only prevent dust, water, and impact, but also prevent energy loss caused by the electromagnetic heating cover layer.

[0045] On the other hand, please refer to Figure 4 and Figure 5 This invention provides a first embodiment of a tire mold, comprising a mold sleeve 14. The outer side of the mold sleeve 14 is equipped with the aforementioned tire mold heating device. Electromagnetic heating is used to heat the mold sleeve within the tire mold, thereby achieving tire vulcanization. One or more electromagnetic heating frames are arranged on the outer circumference of the mold sleeve 14. Depending on the requirements, different electromagnetic heating frames can be connected in series, in parallel, or a combination of both.

[0046] Please refer to Figure 6 This is a second embodiment of a tire mold provided by the present invention. The structure of the mold sleeve 14 is different from that of the first embodiment, but the aforementioned tire mold heating device is also applicable to this tire mold.

[0047] Since electromagnetic heating does not require the electromagnetic heating frame to fit tightly with the mold sleeve 14, the electromagnetic heating frame can be matched with single or multiple specifications of tire molds as needed, making it highly versatile. In particular, it provides a specific and feasible solution for converting steam guide rings to electromagnetic heating vulcanization.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tire mold heating device, characterized in that, The device includes an electromagnetic heating frame, an electric heating coil (6), and a magnetic conductor (11). The electromagnetic heating frame includes an upper support ring (1), a lower support ring (2), a first connecting plate (3), and several wire combs. The two ends of the first connecting plate (3) are respectively connected to the upper support ring (1) and the lower support ring (2). The wire combs are disposed on the outside of the first connecting plate (3) and are used to fix the electric heating coil (6). The magnetic conductor (11) is located on the outside of the electric heating coil (6) and fixed on the electromagnetic heating frame.

2. The tire mold heating device according to claim 1, characterized in that, Several of the aforementioned cable combs are arranged circumferentially along the first connecting plate (3) and spaced apart.

3. The tire mold heating device according to claim 1, characterized in that, The thread comb includes at least a first thread comb blade (4), and the outer surface of the first thread comb blade (4) is provided with a plurality of first grooves (10), and the plurality of first grooves (10) are arranged in the length direction of the first thread comb blade (4).

4. The tire mold heating device according to claim 3, characterized in that, The cable management comb also includes a second cable management comb blade (5), which is parallel to the first cable management comb blade (4); the second cable management comb blade (5) is provided with a plurality of second grooves (9), and the first groove (10) and the second groove (9) are in corresponding positions.

5. The tire mold heating device according to claim 4, characterized in that, The magnetic conductor (11) is located between the second wire comb piece (5) and the first wire comb piece (4) of the same wire comb; a support strip (7) is provided between the upper support ring (1) and the lower support ring (2), and the support strip (7) blocks the outside of the magnetic conductor (11); And / or, the second groove (9) is located on the inner side of the second thread comb (5); And / or, the second thread comb (5) is fixedly connected to at least one of the upper support ring (1), the lower support ring (2), and the first connecting plate (3); And / or, the first filament comb (4) is fixedly connected to at least one of the upper support ring (1), the lower support ring (2), and the first connecting plate (3).

6. The tire mold heating device according to claim 1, characterized in that, The electric heating coils (6) are arranged in a U-shape; an auxiliary connecting plate (8) is fixed on the electromagnetic heating frame. The auxiliary connecting plate (8) is located outside the first connecting plate (3) and is used to fix the rotating part of the electric heating coils (6).

7. The tire mold heating device according to claim 1, characterized in that, A second connecting plate is provided between the electric heating coil (6) and the magnetic conductor (11).

8. A tire mold heating device according to claim 7, characterized in that, The second connecting plate is a PTFE plate or a mica plate; And / or, the two ends of the second connecting plate are respectively fixed to the upper support ring (1) and the lower support ring (2); And / or, the magnetic conductor (11) is fixed on the outer side of the second connecting plate.

9. A tire mold heating device according to claim 1, characterized in that, The upper support ring (1), the lower support ring (2), and the comb are made of non-magnetic metal material; And / or, the outer perimeter of the electromagnetic heating frame is covered with a cover plate (13).

10. A tire mold, characterized in that, Includes the tire mold heating device as described in any one of claims 1-9.

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