Tire mold with flexible thermal sleeve

Abstract

The utility model discloses a tire mould with flexible heat preservation cover, it belongs to tire vulcanization mould field, including mould, a circle flexible heat preservation cover is wrapped outside the mould, the flexible heat preservation cover outer circle is evenly distributed with a plurality of pressure spare, the pressure spare axial connection is in the mould, and is arranged on the flexible heat preservation cover. The above structure can realize the two -way positioning of the circumferential and axial to the flexible heat preservation cover, avoided the flexible heat preservation cover's slippage, and the dismounting is simple.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization molds, specifically to a tire mold with a flexible heat insulation sleeve. Background Technology

[0002] Currently, in the field of tire mold insulation, flexible insulation sleeves are gradually becoming the main form of mold insulation sleeves because their insulation and energy-saving effects are far superior to those of rigid insulation sleeves.

[0003] Currently, there are generally two ways to connect flexible insulation sleeves to molds: The first method involves wrapping the flexible insulation sleeve around the outer circumference of the mold and then using a circumferential binding method to secure the flexible insulation sleeve to the mold. Generally, an anti-fall device is installed at the lower end of the insulation sleeve. The second method involves wrapping the flexible insulation sleeve around the outer circle of the mold and then using screws to directly fasten the flexible insulation sleeve to the outer circle of the mold by making screw holes.

[0004] In practical applications, it was found that the first method, because the flexible insulation sleeve is not directly connected to the outer circle of the mold, and the axial direction is only restricted by the anti-sagging structure at the lower end, without an axial restriction structure at the top, can lead to axial loosening of the already tightened insulation sleeve during use, resulting in a reduction in insulation effect. The second installation method, where screws pass directly through the insulation sleeve body, causes inconvenience during installation and removal. Furthermore, the fastener caps are located on the outside of the insulation sleeve, making them highly susceptible to damage from impacts, further hindering the removal of the insulation sleeve.

[0005] In view of the problems existing in the prior art, this utility model designs and manufactures a tire mold with a flexible heat insulation sleeve to overcome the above defects. Summary of the Invention

[0006] To address the problems existing in the prior art, this utility model provides a tire mold with a flexible insulation sleeve, which can achieve bidirectional positioning of the flexible insulation sleeve in both the circumferential and axial directions, avoiding the movement of the flexible insulation sleeve, and is easy to assemble and disassemble.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tire mold with a flexible heat insulation sleeve, comprising a mold, wherein the mold is wrapped with a flexible heat insulation sleeve; The flexible insulation sleeve has several pressing components evenly distributed around its outer circumference. The pressing components are axially connected to the mold and pressed onto the flexible insulation sleeve.

[0008] Preferably, the flexible insulation sleeve has several through slots evenly distributed around its upper and lower circumferences along its axial direction, with the upper and lower slots being at the same vertical position in the circumferential direction. A threaded hole is provided on the side wall of the mold corresponding to the slot position; The two ends of the pressing component are connected to the mold by screws.

[0009] Preferably, the pressing member includes connecting portions at both ends, and the connecting portions are provided with connecting holes; The connecting part fits into the groove, and the pressure piece is fixed to the side wall of the mold through the connecting hole and screw.

[0010] Preferably, the pressing member further includes a pressing part that protrudes outward between the two connecting parts; The pressing part is pressed against the outside of the flexible insulation sleeve.

[0011] Preferably, the distance between the pressing part and the connecting part is less than the thickness of the flexible insulation sleeve.

[0012] Preferably, the pressing material is stainless steel.

[0013] Preferably, when the outer wall of the mold is provided with a step in the axial direction, the clamping part of the pressing member is provided with a bent step consistent with the step; When the pressing part with the bending step is pressed onto the flexible insulation sleeve, a clamping band is tightened on the lower step surface of the pressing part near the bending step.

[0014] Preferably, the pressing element is a high-temperature resistant flexible traction strip; And / or, the pressing element is provided as an aramid tape or a ceramic fiber tape.

[0015] Preferably, a heat-insulating gasket is provided on the inner side and / or the outer side of the pressure member connection portion; The heat insulation pad is connected to the pressure member connection by screws.

[0016] Preferably, the flexible insulation sleeve is provided with pressure members near the splicing positions at both ends.

[0017] The advantages of this utility model are: 1. This utility model changes the original method of fixing the flexible insulation sleeve from circumferential clamping to axial pressing on the side wall of the tire mold, avoiding the problem of axial loosening of the flexible insulation sleeve. Moreover, the multiple pressing parts are evenly distributed around the circumference, ensuring the clamping of the flexible insulation sleeve in the entire circumference. Through bidirectional positioning in the axial and circumferential directions, the problem of movement of the flexible insulation sleeve is completely solved, ensuring the insulation effect.

[0018] 2. This utility model only requires the connecting parts at both ends of the pressing component to be connected to the side wall of the mold. The screw does not need to pass through the flexible insulation sleeve before connecting to the mold. The installation and disassembly of the pressing component is simple, which reduces the difficulty of disassembling and assembling the flexible insulation sleeve. Moreover, compared with fixing the flexible insulation sleeve by clamping, the pressing component will not move due to the flexible insulation sleeve.

[0019] 3. With grooves at both ends of the flexible insulation sleeve of this utility model, after the screws fix the pressure component, the head of the screws will be lower than the outer wall of the flexible insulation sleeve, avoiding damage to the screws due to impact or other factors; moreover, the flexible insulation sleeve and the pressure component themselves will not be deformed due to impact, which will affect the subsequent disassembly and maintenance. Therefore, the whole structure is more suitable for workshop applications.

[0020] 4. With the help of the groove and the step on the outer wall of the flexible insulation sleeve, when the pressing part is pressing the flexible insulation sleeve, the protruding pressing part and the flexible pull strip will provide a certain axial support for the flexible insulation sleeve at the lower groove step, forming an axial positioning of the flexible insulation sleeve, avoiding the problem of falling off and insulation failure caused by the movement of the flexible insulation sleeve. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of a tire mold with a flexible heat insulation sleeve, according to a first embodiment. Figure 2 This is a schematic diagram of the pressing component according to Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the mold sidewall with steps according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the pressing component with a bent step according to Embodiment 1 of this utility model; Figure 5 This is a cross-sectional view of Embodiment 2 of the present invention; Figure 6 This is a partial structural schematic diagram of Embodiment 1 of the present utility model; Figure 7 This is a partial top view of Embodiment 1 of the present utility model; Figure 8 This is a partial structural schematic diagram of Embodiment 1 of the present utility model; Figure 9 This is a partial cross-sectional view of the connecting portion in Embodiment 1 of this utility model.

[0022] In the diagram: 1. Mold; 2. Flexible insulation sleeve; 3. Pressing part; 4. Screw; 5. Groove; 6. Heat insulation pad; 7. Gasket; 31. Connecting part; 32. Pressing part; 33. Bending step. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 9 As shown, a tire mold with a flexible heat insulation sleeve includes a mold 1, and a flexible heat insulation sleeve 2 is wrapped around the outside of the mold 1 to keep the mold 1 warm.

[0025] A number of pressing parts 3 are evenly distributed on the outer circumference of the flexible insulation sleeve 2. The pressing parts 3 are axially connected to the mold 1 and pressed onto the flexible insulation sleeve 2. The length A of the pressing parts 3 is preferably equal to the axial height of the flexible insulation sleeve 2, so as to ensure that each pressing part 3 can stably press the flexible insulation sleeve 2 from the axial direction.

[0026] The above structure changes the original method of fixing the flexible insulation sleeve 2 from circumferential clamping to axial pressing on the side wall of the tire mold, thus avoiding the problem of axial loosening of the flexible insulation sleeve 2; moreover, several pressing parts 3 are evenly distributed around the circumference, ensuring the clamping of the flexible insulation sleeve 2 throughout the entire circumference. Through bidirectional positioning in both the axial and circumferential directions, the problem of movement of the flexible insulation sleeve 2 is completely solved, ensuring the insulation effect.

[0027] The flexible insulation sleeve 2 preferably has several through slots 5 evenly distributed around its circumference at both the upper and lower ends along its axial direction. The upper and lower slots 5 are aligned vertically in the circumferential direction. Threaded holes are provided on the sidewall of the mold 1 corresponding to the slots 5. The two ends of the pressing component 3 are connected to the mold 1 by screws 4. To improve the clamping stability of the screws 4 on the pressing component 3, a corresponding washer 7 is preferably fitted between the screw head and the pressing component 3.

[0028] Specifically, the pressing component 3 includes connecting parts 31 at both ends. The connecting parts 31 are provided with connecting holes. The connecting parts 31 fit into the slot 5. The pressing component 3 is fixed to the side wall of the mold 1 through the connecting holes and screws 4. The connecting holes are preferably long slot holes to facilitate the adjustment of the position of the pressing component 3.

[0029] This utility model only requires the connecting parts 31 at both ends of the pressing part 3 to connect with the side wall of the mold 1. The screw 4 does not need to pass through the flexible insulation sleeve 2 before connecting with the mold 1. The installation and disassembly of the pressing part 3 is simple, which means that the installation and disassembly difficulty of the flexible insulation sleeve 2 is also reduced. Moreover, compared with fixing the flexible insulation sleeve 2 by clamping, the pressing part 3 will not move due to the flexible insulation sleeve 2.

[0030] In addition, after the screws 4 fix the pressure piece 3 by setting the slots 5 at both ends of the flexible insulation sleeve 2, the head of the screw 4 will be lower than the outer wall of the flexible insulation sleeve 2, avoiding damage to the screw 4 due to impact and other factors; moreover, the flexible insulation sleeve 2 and the pressure piece 3 themselves will not be affected by impact deformation, thus making the whole structure more suitable for workshop applications. Example 1

[0031] like Figures 1 to 4 ,as well as Figures 6 to 8 As shown, the pressing component 3 also includes a pressing part 32 that protrudes outward between the two connecting parts 31. The pressing part 32 presses against the outside of the flexible insulation sleeve 2. In order to ensure that the pressing part 32 can press the flexible insulation sleeve 2, the distance L between the pressing part 32 and the connecting part 31 should be less than the thickness of the flexible insulation sleeve 2.

[0032] The material of the pressure component 3 in this structure is preferably stainless steel, but ordinary carbon steel can also be used with rust prevention treatment to avoid rusting during long-term use.

[0033] Due to the special structure of some molds 1, there are steps in the axial direction of their outer side wall. Therefore, the corresponding pressing part 32 of the pressing part 3 is also provided with a bent step 33 that is consistent with the step. When the pressing part 32 with the bent step 33 is pressed on the flexible insulation sleeve 2, a clamping band is tightened on the lower step surface of the pressing part 32 near the bent step 33, so as to prevent the pressing part 32 from deforming. Example 2

[0034] like Figure 5 As shown, the pressing element 3 is a high-temperature resistant flexible pull belt, preferably an aramid belt or a ceramic fiber belt, which is not only resistant to high temperatures but also has high strength. In addition, aramid belts and ceramic fiber belts are both poor conductors of heat, which can further reduce the heat loss of the pressing element 3.

[0035] Of course, flexible straps are not suitable for structures with steps on the outer wall of mold 1, because they cannot achieve precise bending at the step position, which would affect the axial compression of the flexible insulation sleeve 2.

[0036] In both of the above embodiments of this utility model, the connecting part 31 is connected to the groove 5, and with the help of the groove 5 and the step on the outer side wall of the flexible insulation sleeve 2, when the pressing part 3 presses the flexible insulation sleeve 2, the protruding pressing part 32 and the flexible pull strap will provide a certain axial support for the flexible insulation sleeve 2 at the step of the lower groove 5, forming an axial positioning of the flexible insulation sleeve 2, avoiding the problem of falling off and insulation failure caused by the movement of the flexible insulation sleeve 2.

[0037] Because the flexible insulation sleeve 2 has been removed from the slot 5 position to facilitate direct connection between the connecting part 31 of the pressing part 3 and the side wall of the tire mold, in order to prevent the slot 5 position from becoming a heat dissipation point, such as Figure 9 As shown, a heat insulation pad 6 shall be provided on the inner side and / or outer side of the connecting part 31 of the pressure member 3. The size of the heat insulation pad 6 shall be consistent with the size of the slot 5. The heat insulation pad 6 shall be connected to the connecting part 31 of the pressure member 3 by the screw 4 for fastening the pressure member 3.

[0038] In addition, the current flexible insulation sleeve 2 is often a ring-shaped insulation layer formed by wrapping a piece of insulation material around it. Then, the two ends of the flexible insulation sleeve 2 are tightly attached together by a pull strap. In order to reduce the corresponding connection structure at both ends of the flexible insulation sleeve 2 and eliminate the corresponding pull strap, the flexible insulation sleeve 2 can preferably be provided with a pressure member 3 near the splicing position at both ends. The pressure member 3 is equivalent to directly connecting the splicing position at both ends of the flexible insulation sleeve 2 to the side wall of the mold 1. Of course, it is not necessary to completely abandon the pull strap. It can also be appropriately applied according to the actual installation requirements.

[0039] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A tire mold with a flexible heat-insulating sleeve, characterized in that, Includes a mold (1), which is wrapped with a flexible heat insulation sleeve (2); The flexible insulation sleeve (2) has several pressing parts (3) evenly distributed on its outer circumference. The pressing parts (3) are axially connected to the mold (1) and pressed onto the flexible insulation sleeve (2).

2. A tire mold with a flexible heat-insulating sleeve according to claim 1, characterized in that, The flexible insulation sleeve (2) has several through slots (5) evenly distributed around its upper and lower ends along its axial direction. The upper slot (5) and the lower slot (5) are in the same position in the circumferential direction. A threaded hole is provided on the side wall of the mold (1) corresponding to the slot (5); The two ends of the pressure piece (3) are connected to the mold (1) by screws (4).

3. A tire mold with a flexible heat-insulating sleeve according to claim 2, characterized in that, The pressure member (3) includes connecting portions (31) at both ends, and the connecting portions (31) are provided with connecting holes; The connecting part (31) fits into the slot (5), and the pressure piece (3) is fixed to the side wall of the mold (1) through the connecting hole and the screw (4).

4. A tire mold with a flexible heat-insulating sleeve according to claim 3, characterized in that, The pressure member (3) also includes a pressing part (32) that protrudes outward between the two connecting parts (31). The pressing part (32) is pressed against the outside of the flexible insulation sleeve (2).

5. A tire mold with a flexible heat-insulating sleeve according to claim 4, characterized in that, The distance between the pressing part (32) and the connecting part (31) is less than the thickness of the flexible insulation sleeve (2).

6. A tire mold with a flexible heat-insulating sleeve according to claim 1 or 2, characterized in that, The material of the pressure component (3) is stainless steel.

7. A tire mold with a flexible heat-insulating sleeve according to claim 1, characterized in that, When the outer wall of the mold (1) is provided with a step in the axial direction, the pressing part (32) of the pressing part (3) is provided with a bent step (33) that is consistent with the step. When the pressing part (32) with the bending step (33) is pressed onto the flexible insulation sleeve (2), the pressing part (32) is clamped with a clamping band on the lower step surface near the bending step (33).

8. A tire mold with a flexible heat-insulating sleeve according to claim 1 or 2, characterized in that, The pressing component (3) is configured as a high-temperature resistant flexible traction strip; And / or, the pressing element (3) is provided as an aramid tape or a ceramic fiber tape.

9. A tire mold with a flexible heat-insulating sleeve according to claim 1, characterized in that, The inner side and / or outer side of the connecting part (31) of the pressure member (3) are provided with heat insulation pads (6); The heat insulation pad (6) is connected to the connection part (31) of the pressure member (3) by screws (4).

10. A tire mold with a flexible heat-insulating sleeve according to claim 1, characterized in that, The flexible insulation sleeve (2) has pressure pieces (3) near the splicing positions at both ends.

Images