External gas heating equipment for tire vulcanization
By setting external gas heating equipment with flow guide cavity and thermal conduction cavity outside the tire mold, the problem of low heat propagation efficiency of built-in electric heating structure is solved, and more efficient heat transfer and wider applicability are achieved.
Patent Information
- Application Number
- CN202421196096.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The built-in electric heating structure of the existing tire mold leads to low heat propagation efficiency, high energy consumption, limited scope of application, and large equipment size, which limits the applicability of tire size and specifications.
Design an external gas heating device to form a circulation path for medium flow by setting a dielectric cavity and a thermal conduction cavity outside the mold, and use the dielectric assembly and thermal conduction material to improve the heat propagation efficiency. The dielectric cavity and thermal conduction cavity are located outside the mold to reduce the Changes to the central organization are more applicable.
It effectively improves heat transmission efficiency, reduces energy consumption, and is not limited in size and specifications of suitable tires, has better versatility and is easy to inspect and repair.
Smart Images
Figure CN222309513U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tire vulcanization equipment, in particular to an external gas heating device for tire vulcanization. Background Art
[0002] At present, some tire molds will set the electric heating structure inside the capsule. The electric heating structure directly generates heat inside the capsule to heat the medium inside the capsule. The medium circulation inside the capsule is promoted by setting or not setting a stirring structure, so that the medium inside the capsule can quickly and evenly increase the temperature. The heated medium can transfer the heat to the capsule and finally to the green tire that needs heat.
[0003] A common electric heating structure is an electric heating tube, and the medium is usually nitrogen. The nitrogen flows through the surface of the electric heating tube to achieve heat conduction and form a temperature field in the capsule. Since the contact area between the surface of the electric heating tube and the nitrogen is small, the heat transfer efficiency between the electric heating tube and the nitrogen is low, resulting in a slow heating rate of the nitrogen and a high energy consumption to reach the predetermined temperature. In addition, in order to achieve an ideal heating rate, a certain length of electric heating tube must be used to meet the required total electrical power, which further leads to an increase in the volume of the electric heating structure, and the tire size and specifications to which it can be applied are limited, and the scope of application is reduced, which is not conducive to improving equipment utilization.
[0004] Therefore, developing and designing an external heating device that is set outside the mold, has a more flexible layout, requires less modification to the central mechanism, and can improve versatility is an issue that needs to be urgently addressed at this stage. Utility Model Content
[0005] In order to solve the problems existing in the prior art, the utility model provides an external gas heating device for tire vulcanization. The interior of the capsule, the flow guide cavity and the heat conduction cavity form a circulation path for the flow of the medium. The flow guide component in the flow guide cavity can provide power for the circulation of the medium. The heat generated by the heating component can be fully transferred to the medium through the heat conduction cavity and the heat conduction sheet made of heat conductive material, thereby effectively improving the heat transfer efficiency. Both the flow guide cavity and the heat conduction cavity are located outside the mold body, and the layout is more flexible. The modification of the central mechanism of the mold body is smaller, the applicable tire size and specifications are not restricted, and the versatility is better.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0007] The utility model provides an external gas heating device for tire vulcanization, comprising:
[0008] A mold body, wherein the mold body has a vulcanization chamber, wherein a capsule is arranged in the vulcanization chamber, and wherein the capsule is filled with a medium;
[0009] A flow guiding cavity, the flow guiding cavity is located outside the mold body; a flow guiding component is arranged in the flow guiding cavity; the flow guiding cavity is communicated with the inside of the capsule, and the flow guiding component makes the medium inside the capsule have a tendency to flow toward the flow guiding cavity;
[0010] A heat-conducting cavity, the heat-conducting cavity is located outside the mold body; the axis of the heat-conducting cavity is perpendicular to the axis of the flow-conducting cavity; a heating component is arranged outside the heat-conducting cavity, the cavity wall of the heat-conducting cavity is made of heat-conducting material, and a plurality of heat-conducting sheets extending inward are arranged on the inner wall of the heat-conducting cavity; one end of the heat-conducting cavity is connected with the flow-conducting cavity, and the other end of the heat-conducting cavity is connected with the interior of the capsule.
[0011] As a preferred technical solution, the mold body includes a center rod, and the center rod extends into the vulcanization chamber.
[0012] As a preferred technical solution, a clamping assembly is provided on the central rod, and the clamping assembly installs the bladder in the vulcanization chamber.
[0013] As a preferred technical solution, a ring seat is provided on the center rod, and one end of the ring seat is located inside the capsule; a through discharge hole is provided on the end surface of the ring seat located inside the capsule, and the discharge hole is connected to the flow guide cavity; a through entrance hole is provided on the circumferential surface of the ring seat located inside the capsule, and the entrance hole is connected to the heat conduction cavity.
[0014] As a preferred technical solution, the extending direction of the discharge hole is parallel to the axis of the mold body;
[0015] And / or, the entry hole comprises a first section and a second section, the extension direction of the first section is parallel to the axis of the mold body, and the second section connects the circumference of the ring seat with the first section;
[0016] And / or, the exhaust hole and the inlet hole are both provided in plural numbers, and the plurality of exhaust holes and the plurality of inlet holes are distributed along the circumferential direction.
[0017] As a preferred technical solution, the flow guide component includes an impeller arranged in the flow guide cavity, and the impeller is connected to a driving component that drives the impeller to rotate.
[0018] As a preferred technical solution, the flow guide cavity has an inlet and an outlet, the inlet is connected to the interior of the capsule, the outlet is connected to the heat conduction cavity, the inlet is located on the axis of the impeller, and the outlet is located in the radial direction of the impeller;
[0019] And / or, the driving component is configured as a motor;
[0020] And / or, the driving assembly is arranged inside or outside the diversion cavity.
[0021] As a preferred technical solution, the exterior of the heating component is provided with a heat-insulating layer.
[0022] As a preferred technical solution, the heating component is configured as an electromagnetic induction coil, the electromagnetic induction coil is wound around the heat conduction cavity, and the heat insulation layer is configured as a magnetic conductor;
[0023] Alternatively, the heating component is configured as an electric heating tube, the electric heating tube is attached to the outer wall of the heat conduction cavity, and the insulation layer is made of a heat insulating material.
[0024] As a preferred technical solution, the inner wall of the heat-conducting cavity and the heat-conducting sheet are both made of aluminum or silicon carbide;
[0025] And / or, the medium is set to nitrogen or heat transfer oil.
[0026] The beneficial effects of the utility model are as follows:
[0027] 1. The interior of the capsule, the flow guide cavity and the heat conduction cavity of the utility model form a circulation path for the flow of the medium. The flow guide component in the flow guide cavity can provide power for the circulation of the medium to ensure the continuous circulation of the medium. The heat generated by the heating component can be fully transferred to the medium through the heat conduction cavity and the heat conduction sheet made of heat conductive material, which effectively improves the heat transfer efficiency. The flow guide cavity and the heat conduction cavity are both located outside the mold body, and the layout is more flexible. The modification of the central mechanism of the mold body is smaller, and the applicable tire size and specifications are not limited. The maintenance is convenient and the versatility is better.
[0028] 2. The utility model utilizes a plurality of circumferentially distributed discharge holes to enable the medium near the ring seat inside the capsule to enter the flow guide cavity evenly; utilizes a plurality of circumferentially distributed entry holes to enable the medium heated by the heat conduction cavity to be evenly distributed inside the capsule, and to ensure the medium to flow stably inside the capsule, and to transfer heat evenly to the capsule. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an external gas heating device for tire vulcanization according to the utility model;
[0030] Figure 2 for Figure 1 A magnified image of area A;
[0031] Figure 3 for Figure 1 Enlarged view of area B;
[0032] Figure 4 for Figure 1 A schematic diagram of the structure of the heat conduction cavity;
[0033] Figure 5 The utility model is a schematic diagram of the structure of the flow conduction cavity and the heat conduction cavity in another embodiment of the external gas heating device for tire vulcanization.
[0034] In the figure: 1-mold body, 11-vulcanization chamber, 12-capsule, 13-center rod, 14-clamping assembly, 15-ring seat, 151-discharge hole, 152-first section, 153-second section, 2-flow guide chamber, 21-impeller, 22-drive assembly, 23-inlet, 24-outlet, 3-heat conduction chamber, 31-heat conduction plate, 4-heating assembly, 5-insulation layer. DETAILED DESCRIPTION
[0035] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0036] Embodiment 1
[0037] Please refer to Figure 1-Figure 4 , is an embodiment of an external gas heating device for tire vulcanization provided by the utility model, comprising a mold body 1, a flow guide cavity 2 and a heat conduction cavity 3; the mold body 1 has a vulcanization cavity 11, and a capsule 12 is arranged in the vulcanization cavity 11, and the capsule 12 is filled with a medium; the flow guide cavity 2 and the heat conduction cavity 3 are both located outside the mold body 1; the flow guide cavity 2 is connected to the inside of the capsule 12, one end of the heat conduction cavity 3 is connected to the flow guide cavity 2, and the other end of the heat conduction cavity 3 is connected to the inside of the capsule 12, so that the inside of the capsule 12 , the flow guide cavity 2 and the heat conduction cavity 3 form a circulation path for the flow of the medium; a flow guide component is provided in the flow guide cavity 2, and the flow guide component makes the medium inside the capsule 12 have a tendency to flow toward the flow guide cavity 2; a heating component 4 is provided outside the heat conduction cavity 3, and the cavity wall of the heat conduction cavity 3 is made of heat conductive material, and a plurality of heat conductive sheets 31 extending inward are provided on the inner wall of the heat conduction cavity 3. When the medium flows through the heat conduction cavity 3, the heat generated by the heating component 4 can be fully transferred to the medium through the heat conduction cavity 3 and the heat conductive sheets 31, thereby effectively improving the heat transfer efficiency.
[0038] Furthermore, the axis of the flow guide component is arranged parallel to the axis of the mold body 1, which can achieve the best effect of promoting the flow of the medium; the axis of the flow guide cavity 2 and the axis of the heat conduction cavity 3 are perpendicular to each other, and the medium flows through the flow guide cavity 2 and turns 90° to enter the heat conduction cavity 3. At the same time, the flow guide cavity 2 and the heat conduction cavity 3 are arranged separately, which can more conveniently form a circulation path on the one hand, and save space on the other hand, and can be more conveniently installed on the outside of the mold body 1.
[0039] Specifically, the medium is preferably nitrogen. In other embodiments, the medium may also be heat transfer oil, so as to achieve stable heat transfer. It should be noted that Figure 1-Figure 3 The direction of the arrow in is the flow direction of the medium; further, the material of the inner wall of the heat-conducting cavity 3 and the heat-conducting plate 31 is preferably set to aluminum or silicon carbide, so as to efficiently conduct heat; further, the heat-conducting plate 31 is preferably in the shape of a fin, and when the medium flows through, it has a larger contact area with the fin-shaped heat-conducting plate 31, thereby improving the heat exchange effect.
[0040] It should be noted that the circumferential direction in the present invention is based on the axis of the mold body 1 .
[0041] In this embodiment, please refer to Figure 1 and Figure 2 The mold body 1 includes a center rod 13, which is coaxially arranged with the mold body 1 and extends into the vulcanization chamber 11. A clamping assembly 14 is provided on the center rod 13. The clamping assembly 14 can install and position the capsule 12 in the vulcanization chamber 11. The clamping assembly 14 is a conventional structure in the technical field and will not be described in detail herein.
[0042] Based on the above examples, please refer to Figure 1 and Figure 2 A ring seat 15 is provided on the center rod 13, and one end of the ring seat 15 is located inside the capsule 12; a through discharge hole 151 is provided on the end surface of the ring seat 15 located inside the capsule 12, and the discharge hole 151 is connected with the guide cavity 2 through a pipeline, and the medium inside the capsule 12 can flow into the guide cavity 2 along the discharge hole 151; further, a through entrance hole is provided on the circumferential surface of the ring seat 15 located inside the capsule 12, and the entrance hole is connected with the heat conduction cavity 3 through a pipeline, and the medium heated by the heat conduction cavity 3 can enter the capsule 12 along the entrance hole.
[0043] For details, please refer to Figure 1 and Figure 2 , the extension direction of the discharge hole 151 should be parallel to the axis of the mold body 1 to ensure that the medium inside the capsule 12 can flow out smoothly along the discharge hole 151; at the same time, the entry hole preferably includes a first section 152 and a second section 153, the extension direction of the first section 152 is parallel to the axis of the mold body 1, and the second section 153 connects the circumferential surface of the ring seat 15 with the first section 152, and the medium heated by the heat conduction cavity 3 passes through the first section 152 and the second section 153 in sequence and enters the capsule 12. The outflowing and inflowing media will not interfere with each other, and the heated medium can flow smoothly along the inner wall of the capsule 12 to the discharge hole 151, and the flow of the medium inside the capsule 12 is stable, and the heat can be evenly transferred to the capsule 12.
[0044] It should be noted that the discharge holes 151 and the inlet holes are preferably multiple, and the multiple discharge holes 151 and the multiple inlet holes are evenly distributed along the circumference, which can ensure that the medium inside the capsule 12 flows out evenly and the heated medium flows into the capsule 12 evenly, ensuring even heat dissipation.
[0045] In this embodiment, please refer to Figure 1 and Figure 3 The flow guide component includes an impeller 21 arranged in the flow guide chamber 2, and the impeller 21 is connected to a driving component 22 for driving the impeller 21 to rotate. When the driving component 22 drives the impeller 21 to rotate, the low-pressure area generated can attract the medium inside the capsule 12 to flow out; specifically, the flow guide chamber 2 has an inlet 23 and an outlet 24, the inlet 23 is connected to the inside of the capsule 12, and the outlet 24 is connected to the heat conduction chamber 3. The inlet 23 is located on the axis of the impeller 21 and is located at the low-pressure area generated by the impeller 21. The outlet 24 is located in the radial direction of the impeller 21. When the impeller 21 rotates, the medium inside the capsule 12 can continuously flow into the flow guide chamber 2, and the medium in the flow guide chamber 2 is transported to the heat conduction chamber 3.
[0046] Specifically, the driving component 22 is preferably configured as a motor, and the output shaft of the motor is transmission-connected to the impeller 21, so as to drive the impeller 21 to rotate stably; the driving component 22 is disposed outside the guide chamber 2, and the driving component 22 does not need to withstand the high temperature of the medium. At the same time, a rotating seal should be provided where the driving component 22 passes through the guide chamber 2.
[0047] In this embodiment, please refer to Figure 1 and Figure 3 The outer sleeve of the heating component 4 is provided with an insulation layer 5, which wraps the heating component 4 and can effectively avoid the waste of heat generated by the heating component 4; specifically, the heating component 4 is preferably configured as an electromagnetic induction coil, which is wound on the heat conduction cavity 3, and the insulation layer 5 is configured as a magnetic conductor; in other embodiments, the heating component 4 can also be configured as an electric heating tube, which is attached to the outer wall of the heat conduction cavity 3, and correspondingly, the insulation layer 5 is made of insulation material so as to effectively transfer heat to the heat conduction cavity 3.
[0048] It should be noted that a temperature measuring component may preferably be provided inside the capsule 12 for measuring the temperature of the medium inside the capsule 12 in real time to ensure that the temperature of the medium inside the capsule 12 is always within a suitable range; specifically, the temperature measuring component is preferably configured as a temperature sensor.
[0049] Embodiment 2
[0050] Please refer to Figure 5The main difference between this embodiment and the first embodiment is that the drive component 22 is arranged inside the guide cavity 2, the structure is more compact, the torque transmission distance of the drive component 22 is smaller, and the required starting torque is smaller, which is beneficial to reducing the power of the drive component 22, but the drive component 22 is required to withstand the high temperature of the medium.
[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An external gas heating device for tire vulcanization, characterized in that: include: A mold body (1), wherein the mold body (1) has a vulcanization chamber (11), wherein a capsule (12) is arranged in the vulcanization chamber (11), and wherein the capsule (12) is filled with a medium; a flow guiding cavity (2), the flow guiding cavity (2) being located outside the mold body (1); a flow guiding component being arranged in the flow guiding cavity (2); the flow guiding cavity (2) being connected to the interior of the capsule (12), the flow guiding component causing the medium in the capsule (12) to have a tendency to flow toward the flow guiding cavity (2); A heat-conducting cavity (3), the heat-conducting cavity (3) is located outside the mold body (1); the axis of the heat-conducting cavity (3) is perpendicular to the axis of the flow-conducting cavity (2); a heating component (4) is provided outside the heat-conducting cavity (3); the cavity wall of the heat-conducting cavity (3) is made of a heat-conducting material, and a plurality of heat-conducting sheets (31) extending inwardly are provided on the inner wall of the heat-conducting cavity (3); one end of the heat-conducting cavity (3) is connected to the flow-conducting cavity (2), and the other end of the heat-conducting cavity (3) is connected to the interior of the capsule (12).
2. The external gas heating device for tire vulcanization according to claim 1, characterized in that: The mold body (1) comprises a center rod (13), and the center rod (13) extends into the vulcanization chamber (11).
3. The external gas heating device for tire vulcanization according to claim 2, characterized in that: The central rod (13) is provided with a clamping assembly (14), and the clamping assembly (14) installs the bladder (12) in the vulcanization chamber (11).
4. The external gas heating device for tire vulcanization according to claim 2, characterized in that: A ring seat (15) is provided on the central rod (13), and one end of the ring seat (15) is located inside the capsule (12); a through discharge hole (151) is provided on the end surface of the end of the ring seat (15) located inside the capsule (12), and the discharge hole (151) is communicated with the flow guide cavity (2); a through entrance hole is provided on the circumferential surface of the end of the ring seat (15) located inside the capsule (12), and the entrance hole is communicated with the heat conduction cavity (3).
5. The external gas heating device for tire vulcanization according to claim 4, characterized in that: The extending direction of the discharge hole (151) is parallel to the axis of the mold body (1); And / or, the entry hole comprises a first section (152) and a second section (153), the extension direction of the first section (152) is parallel to the axis of the mold body (1), and the second section (153) connects the circumferential surface of the ring seat (15) with the first section (152); And / or, the discharge hole (151) and the inlet hole are both provided in plurality, and the plurality of discharge holes (151) and the plurality of inlet holes are distributed along the circumferential direction.
6. The external gas heating device for tire vulcanization according to claim 1, characterized in that: The flow guide component comprises an impeller (21) arranged in the flow guide cavity (2), and the impeller (21) is connected to a driving component (22) for driving the impeller (21) to rotate.
7. The external gas heating device for tire vulcanization according to claim 6, characterized in that: The flow guide chamber (2) has an inlet (23) and an outlet (24), the inlet (23) is in communication with the interior of the capsule (12), the outlet (24) is in communication with the heat conduction chamber (3), the inlet (23) is located on the axis of the impeller (21), and the outlet (24) is located in the radial direction of the impeller (21); And / or, the driving component (22) is configured as a motor; And / or, the driving component (22) is arranged inside or outside the guide cavity (2).
8. The external gas heating device for tire vulcanization according to claim 1, characterized in that: The exterior of the heating component (4) is provided with a heat-insulating layer (5).
9. The external gas heating device for tire vulcanization according to claim 8, characterized in that: The heating component (4) is configured as an electromagnetic induction coil, the electromagnetic induction coil is wound around the heat conduction cavity (3), and the thermal insulation layer (5) is configured as a magnetic conductor; Alternatively, the heating component (4) is configured as an electric heating tube, the electric heating tube is attached to the outer wall of the heat conduction cavity (3), and the thermal insulation layer (5) is made of a heat insulating material.
10. The external gas heating device for tire vulcanization according to claim 1, characterized in that: The inner wall of the heat-conducting cavity (3) and the heat-conducting sheet (31) are both made of aluminum or silicon carbide; And / or, the medium is set to nitrogen or heat transfer oil.