Tire mold

Abstract

The tire mold provided by the utility model comprises a pattern block and a side plate, the side plate comprises a side plate cavity surface and a side plate side wall, and when the tire mold is in a mold closing state, the pattern block is matched with the side plate side wall; the inclined exhaust hole is formed in the side plate, one end of the inclined exhaust hole is communicated with the cavity surface of the side plate, and the other end of the inclined exhaust hole is communicated with the side wall of the side plate. According to the utility model, through the arrangement of the inclined exhaust holes, the matching part of the side plate and the pattern block is used for exhausting, a new exhaust channel is added, and meanwhile, the air pressure in the exhaust matching clearance can prevent glue overflow at the position to a certain extent; furthermore, an inclined exhaust hole is machined in the outer side of the side plate, a tool bit can make contact with the cavity face of the side plate at a large included angle during machining, the length of the exhaust hole is small, and the machining difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire vulcanization, and in particular relates to a tire mold. Background Art

[0002] Tire molds are key components used to vulcanize tires, and they determine the quality, performance, and cost of tires. When the tire is vulcanized, the gas between the mold and the tire blank needs to be discharged through the exhaust structure, otherwise it is easy to cause the tire to be defective and scrapped. In recent years, tires with patterned sidewalls have emerged in the market. The sidewall pattern decorations all correspond to the outer side of the tire mold sidewall plate. At the same time, the pattern decorations are complex in shape and the exhaust is poor. In order to ensure the quality of tire molding here, enough exhaust structures must be arranged. Figure 1 As shown, the exhaust structure is a vertical air hole 123, one end of which is connected to the side panel cavity surface, and the other end is connected to the exhaust groove corresponding to the bottom surface of the side panel. However, in order to fit the shape of the tire, the thickness of the tire mold side panel corresponding to the pattern decoration is relatively large, and the side panel cavity surface generally presents a certain curvature, so it is difficult to directly process the vertical air hole. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a tire mold.

[0004] The utility model provides a tire mold, comprising:

[0005] A tread block and a side plate, wherein the side plate comprises a side plate cavity surface and a side plate side wall, and when the tire mold is in a mold-closed state, the tread block cooperates with the side plate side wall;

[0006] An oblique exhaust hole is provided in the side plate, one end of the oblique exhaust hole is connected to the side plate cavity surface, and the other end is connected to the side wall of the side plate.

[0007] Optionally, the side wall of the side plate is provided with an inner groove, and the inner groove is connected to the oblique exhaust hole.

[0008] Optionally, the inner groove is higher than the lower end surface of the pattern block.

[0009] Optionally, a cover plate is provided on the outer side of the inner groove.

[0010] Optionally, the inner groove is provided with a step, and the cover plate cooperates with the step of the inner groove;

[0011] And / or, the outer surface of the cover plate is flush with the side wall of the side plate.

[0012] Optionally, the cover plate covers the inner groove, and an exhaust hole is provided at the lower part of the cover plate.

[0013] Optionally, the cover plate covers the upper portion of the inner groove;

[0014] And / or, the cover plate covers 1 / 2-5 / 6 of the inner groove along the axial length of the side plate.

[0015] Optionally, a support portion is provided on a side of the cover plate close to the inner groove, and the support portion abuts against the bottom wall of the inner groove.

[0016] Optionally, the support portion is a strip-shaped protrusion, and a plurality of strip-shaped protrusions are evenly distributed circumferentially on the cover plate.

[0017] Optionally, the side panel cooperates with the pattern block, the upper portion of the side panel side wall cooperates with the pattern block in a clearance, and the lower portion of the side panel side wall is arranged at a distance from the pattern block.

[0018] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0019] 1. Exhaust is carried out by using the matching gap between the side panel side wall and the pattern block through the oblique exhaust hole. This method adds a new exhaust channel. At the same time, the air pressure in the exhaust matching gap can prevent glue overflow there to a certain extent; further, the oblique exhaust hole is processed on the outer side of the side panel. During processing, the tool head and the side panel cavity surface can contact at a larger angle, and the length of the air hole is short, which is easier than processing the vertical line.

[0020] 2. By processing inner grooves on the side wall of the side panel and connecting the inner grooves with the oblique exhaust holes, the exhaust space is increased, and when glue overflow occurs at the joint between the side wall of the side panel and the pattern block, sufficient space is left to prevent the exhaust holes from being blocked and affecting the exhaust effect.

[0021] 3. By adding a cover plate mechanism, it is further prevented that the overflow glue affects the exhaust effect, and the overflow glue is prevented from entering the inner groove, which increases the difficulty of demoulding and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the existing tire mold exhaust method;

[0024] Figure 2 This is a schematic diagram of the oblique exhaust hole of the utility model;

[0025] Figure 3 This is an enlarged schematic diagram of the oblique exhaust hole of the utility model;

[0026] Figure 4 This is a schematic diagram of the utility model with an inner groove structure;

[0027] Figure 5 This is a schematic diagram of the structure of the cover plate of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure in which the cover plate of the utility model covers the upper end of the inner groove;

[0029] Figure 7 It is a structural schematic diagram of the utility model in which the cover plate is provided with a support portion;

[0030] Figure 8 This is a schematic diagram of the cover structure of the utility model;

[0031] Fig. 9 It is a schematic diagram of the intervals set at the matching positions of the pattern blocks and the side panels of the utility model.

[0032] Description of reference numerals:

[0033] 10- Tire mold;

[0034] 110-pattern block, 120-side plate, 121-side plate side wall, 122-side plate cavity surface, 123-vertical air hole, 124-oblique exhaust hole;

[0035] 130 - cover plate, 131 - support portion, 140 - inner groove. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Please refer to Figures 2 to 8 The utility model provides a tire mold 10, comprising a tread block 110 and a side plate 120, wherein the side plate 120 comprises a side plate cavity surface 122 and a side plate side wall 121, wherein when the tire mold 10 is in a mold-closed state, the tread block 110 is matched with the side plate side wall 121; and an oblique exhaust hole 124, wherein the oblique exhaust hole 124 is provided in the side plate 120, wherein one end of the oblique exhaust hole 124 is connected to the side plate cavity surface 122, and the other end is connected to the side plate side wall 121. The oblique exhaust hole 124 is provided to exhaust air through the matching position between the side plate 120 and the tread block 110, and compared with the currently commonly used method of processing a vertical air hole 123 and processing an exhaust groove from the bottom of the side plate 120, the length of the oblique exhaust hole 124 is shorter, and the angle between the tool and the side plate cavity surface 122 is larger during processing, thereby reducing the overall processing difficulty.

[0042] like Figure 4 As shown, the side panel side wall 121 is provided with an inner groove 140, and the inner groove 140 is connected with the oblique exhaust hole 124. The inner groove 140 is provided on the side panel side wall 121, and specifically can be provided along the circumference of the side panel side wall 121, and in order to ensure the strength of the side panel 120, the top of the inner groove 140 is at a certain distance from the side panel cavity surface 122. By providing the inner groove 140, the length of the oblique exhaust hole 124 is further shortened, which is convenient for processing; at the same time, the inner groove 140 provides sufficient space, and when glue overflow occurs at the matching place between the pattern block 110 and the side panel 120, the excess glue flows downward from the gap at the matching place between the pattern block 110 and the side panel side wall 121, and the inner groove 140 has sufficient accommodation space, and the glue will not block the oblique exhaust hole 124, thereby ensuring the exhaust effect.

[0043] Furthermore, the lower end surface of the inner groove 140 is higher than the lower end surface of the pattern block 110. This arrangement is helpful to ensure the gap between the pattern block 110 and the side plate 120, and the pattern block 110 can be guided and positioned through the side plate sidewalls 121 at both ends of the inner groove 140, and it is also possible to prevent excess rubber from entering the bottom of the pattern block 110 through the inner groove 140, which is difficult to clean.

[0044] like Figure 5 and Figure 6 As shown, a cover plate 130 is disposed outside the inner groove 140. Specifically, the inner groove 140 is provided with a step, and the cover plate 130 is matched with the step of the inner groove 140, or the cover plate 130 is directly welded to the inner groove 140, so that the outer surface of the cover plate 130 is flush with the side plate side wall 121. The inner groove 140 is covered by the cover plate 130, which further prevents overflowing glue from entering the inner groove 140 and avoids the possibility of the glue clogging the oblique exhaust hole 124. At this time, after the overflowing glue enters from the matching position of the pattern block 110 and the side plate side wall 121, the gap between the pattern block 110 and the cover plate 130 accommodates the excess glue.

[0045] The cover plate 130 covers the inner groove 140, and an exhaust hole is provided at the lower part of the cover plate 130; or the cover plate 130 only covers the upper part of the inner groove 140. Preferably, the cover plate 130 covers 1 / 2-5 / 6 of the axial length of the inner groove 140 along the side plate 120, so as to allow the cavity gas to be discharged from the oblique exhaust hole 124 to the inner groove 140, and then continue to be discharged outward from the inner groove 140. The inner groove 140 itself has a certain accommodation space, which can retain a part of the gas. However, when the exhaust volume is large, if it is not discharged in time, a pressure zone is formed in the inner groove 140, which may affect the exhaust of the subsequent cavity. The exhaust hole is provided at the lower part of the cover plate 130 or only covers the upper part of the inner groove 140, so that the gas can be discharged in time, and at the same time, the larger length leaves enough space to accommodate the overflow glue.

[0046] like Figure 7 and Figure 8 As shown, a support portion 131 is provided on one side of the cover plate 130 close to the inner groove 140, the support portion 131 abuts against the bottom wall of the inner groove 140, and the support portions 131 are evenly arranged on the cover plate 130 along the circumference of the side plate 120. In order to improve the rigidity of the cover plate 130, a support portion 131 is provided on one side of the cover plate 130 close to the inner groove 140, and the support portion 131 can be a strip-shaped protrusion, such as a triangular or quadrilateral strip-shaped protrusion, preferably a triangular protrusion, to prevent the support portion 131 from blocking the oblique exhaust hole 124; one end of the support portion 131 is connected to the cover plate 130, and the other end abuts against the inner groove 140, to improve the rigidity of the cover plate 130. Further, a plurality of strip-shaped protrusions are arranged substantially evenly along the circumference of the side plate 120.

[0047] like Fig. 9As shown, the side plate 120 is matched with the pattern block 110, the upper part of the side plate side wall 121 is gap-matched with the pattern block 110, and the lower part of the side plate side wall 121 is arranged at a distance from the pattern block 110. Specifically, when the pattern block 110 is molded corresponding to the tire mold 10, a groove is provided at the lower part of the side plate side wall 121, so that it is spaced a certain distance from the side plate side wall 121. Preferably, the upper edge of the groove of the pattern block 110 is higher than the lower edge of the cover plate 130. This arrangement is conducive to exhaust.

[0048] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the utility model described herein.

Claims

1. A tire mold, characterized in that: include: A tread block (110) and a side plate (120), wherein the side plate (120) comprises a side plate cavity surface (122) and a side plate side wall (121), and when the tire mold (10) is in a mold closing state, the tread block (110) cooperates with the side plate side wall (121); An oblique exhaust hole (124), wherein the oblique exhaust hole (124) is disposed in the side plate (120), and one end of the oblique exhaust hole (124) is connected to the side plate cavity surface (122), and the other end of the oblique exhaust hole (124) is connected to the side plate side wall (121).

2. A tire mold according to claim 1, characterized in that: The side plate side wall (121) is provided with an inner groove (140), and the inner groove (140) is communicated with the oblique exhaust hole (124).

3. A tire mold according to claim 2, characterized in that: The inner groove (140) is higher than the lower end surface of the pattern block (110).

4. A tire mold according to claim 2 or 3, characterized in that: A cover plate (130) is arranged outside the inner groove (140).

5. A tire mold according to claim 4, characterized in that: The inner groove (140) is provided with a step, and the cover plate (130) cooperates with the step of the inner groove (140); And / or, the outer surface of the cover plate (130) is flush with the side plate side wall (121).

6. A tire mold according to claim 4, characterized in that: The cover plate (130) covers the inner groove (140), and an exhaust hole is provided at the lower part of the cover plate (130).

7. A tire mold according to claim 4, characterized in that: The cover plate (130) covers the upper portion of the inner groove (140); And / or, the cover plate (130) covers 1 / 2 to 5 / 6 of the axial length of the inner groove (140) along the side plate (120).

8. A tire mold according to claim 4, characterized in that: A support portion (131) is provided on one side of the cover plate (130) close to the inner groove (140), and the support portion (131) abuts against the bottom wall of the inner groove (140).

9. A tire mold according to claim 8, characterized in that: The support portion (131) is a strip-shaped protrusion, and a plurality of strip-shaped protrusions are evenly distributed circumferentially on the cover plate (130).

10. The tire mold according to claim 1, characterized in that: The side plate (120) cooperates with the pattern block (110), the upper portion of the side plate side wall (121) cooperates with the pattern block (110) with a clearance, and the lower portion of the side plate side wall (121) is arranged at a distance from the pattern block (110).

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