Tread mold and tire mold

Abstract

The utility model provides a tread mold and a tire mold, and belongs to the technical field of tire vulcanization equipment, the tread mold comprises a sliding block and a pattern block, the pattern block is arranged on the inner side of the sliding block, the tread mold further comprises a fixing sleeve, and the fixing sleeve is arranged in a mounting hole in the inner side of the sliding block; one end of the fixing pin is connected with the pattern block, the other end of the fixing pin extends into an inner cavity of the fixing sleeve, and a clamping groove is formed in the peripheral side of the part, extending into the fixing sleeve, of the fixing pin; the locking assembly is at least partially arranged in the mounting hole, the locking assembly, the fixing pin and the fixing sleeve jointly define a locking cavity, a locking bead is arranged in the locking cavity, and the locking assembly is suitable for moving in the axial direction of the fixing sleeve so as to shrink the locking cavity and abut against the locking bead to be clamped in the clamping groove. Or the locking cavity is expanded to enable the locking bead to be separated from the clamping groove, so that the pattern block and the sliding block can be quickly assembled and disassembled, and the disassembly and assembly efficiency of the tread mold is improved.

Description

Technical Field

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

[0002] In the prior art tire mold, the tread mold is generally a split structure, including a pattern block and a slider. The pattern block and the slider are connected by machining two sets of countersunk holes on the slider, machining two sets of threaded holes corresponding to the pattern block positions, and using bolts to connect and fasten the pattern block from the back of the slider. The pattern block assembly and disassembly need to be performed from the back of the slider, which is inconvenient to operate, and it takes a long time to install the screws. Utility Model Content

[0003] In view of this, the utility model provides a tread mold and a tire mold to solve the problem of inconvenient disassembly and assembly of the tread blocks and the sliders, and improve the disassembly and assembly efficiency of the tread blocks and the sliders.

[0004] The utility model provides a tread mold, comprising a slider and a pattern block, wherein the pattern block is arranged on the inner side of the slider, and further comprising:

[0005] A fixing sleeve, arranged in a mounting hole on the inner side of the sliding block;

[0006] A fixing pin, one end of which is connected to the tread block, and the other end of which extends into the inner cavity of the fixing sleeve, wherein a locking groove is provided on the outer peripheral side of the portion of the fixing pin extending into the inner cavity of the fixing sleeve;

[0007] A locking assembly is at least partially arranged in the mounting hole, and the locking assembly, the fixing pin and the fixing sleeve jointly define a locking cavity, and a locking ball is arranged in the locking cavity. The locking assembly is suitable for moving along the axial direction of the fixing sleeve to reduce the locking cavity and push the locking ball to be stuck in the locking groove, or to expand the locking cavity to make the locking ball disengage from the locking groove.

[0008] In an optional embodiment, the locking assembly includes a support plate located in the inner cavity of the fixing sleeve, the side of the support plate facing the tread block supports the locking bead, and the side of the support plate facing away from the tread block is provided with a driving component, and the driving component is suitable for driving the support plate to move along the axial direction of the fixing sleeve;

[0009] The fixing sleeve comprises a blocking portion close to one end of the tread block, an end of the fixing pin away from the tread block passes through the blocking portion and extends into the inner cavity of the fixing sleeve, and the support plate, the fixing pin and the blocking portion jointly define the locking cavity.

[0010] In an optional embodiment, the driving component includes a first locking elastic member and an adjusting member, an adjusting hole is opened at the bottom of the mounting hole, the adjusting member is threadedly connected in the adjusting hole, and two ends of the first locking elastic member respectively abut the support plate and the adjusting member.

[0011] In an optional embodiment, the tread mold is provided with an operating hole connecting the mounting hole and the outside of the slider, and the disassembly component passes through the operating hole and is connected to the support plate.

[0012] In an optional embodiment, the operating hole is provided on the adjusting member;

[0013] And / or, the disassembly component is a pull rope or a pull rod.

[0014] In an optional embodiment, a resetting elastic member is further provided between the locking bead and the blocking portion;

[0015] and / or, the bearing surface of the support plate supporting the locking bead gradually decreases in a radially outward direction;

[0016] And / or, the blocking portion includes a first reduced diameter portion and a first small hole portion, the inner diameter of the first reduced diameter portion gradually decreases in a direction approaching the pattern block, and the first small hole portion is arranged at one end of the first reduced diameter portion close to the pattern block.

[0017] In an optional embodiment, the locking groove is an annular groove, the support plate is provided with a limiting groove, and the locking bead is arranged in the limiting groove.

[0018] In an optional embodiment, the locking assembly includes a movable sleeve sleeved outside the fixed sleeve, the movable sleeve includes a second large hole portion, a second reduced diameter portion and a second small hole portion arranged in sequence, the fixed sleeve is provided with a receiving hole along the radial direction, and the locking bead is located in the receiving hole;

[0019] A first sealing member is provided between the outer wall of the movable sleeve and the inner wall of the mounting hole, a second sealing member is provided between the second large hole portion of the movable sleeve and the outer wall of the fixed sleeve, the mounting hole, the fixed sleeve and the second large hole portion jointly define a compression chamber, the slider is provided with an air vent connecting the compression chamber and the outside of the slider, and a second locking elastic member is provided between the second small hole portion and the fixed sleeve.

[0020] In an optional embodiment, a disassembly elastic member is further provided between the pattern block and the sliding block.

[0021] The utility model also provides a tire mold, comprising a guide ring, wherein a plurality of tread molds as described above are arranged inside the guide ring.

[0022] Beneficial effects:

[0023] In the tread mold provided by the utility model, the pattern block is installed on the inner side of the slider through the connecting device, so that the pattern block and the slider can be quickly assembled and disassembled, thereby improving the assembly and disassembly efficiency of the tread mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 This is a structural schematic diagram of the tread mold of the first embodiment of the utility model in a completed assembly state;

[0026] Figure 2 This is a structural schematic diagram of the tread mold in the disassembled state according to the first embodiment of the utility model;

[0027] Figure 3 This is a structural schematic diagram of an implementation method of a connecting device in Example 1 of the utility model;

[0028] Figure 4 This is a structural schematic diagram of another implementation of the connecting device of Example 1 of the utility model;

[0029] Figure 5 This is a structural schematic diagram of the tread mold of the second embodiment of the utility model in a completed assembly state;

[0030] Figure 6 This is a schematic structural diagram of the tread mold in the disassembled state according to the second embodiment of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the connecting device of the second embodiment of the utility model;

[0032] Figure 8 It is a structural schematic diagram of the tire mold of the utility model.

[0033] Description of reference numerals:

[0034] 1-slider, 2-pattern block, 3-fixing sleeve, 3.1-first reduced diameter portion, 3.2-first small hole portion, 3.3-first large hole portion, 4-mounting hole, 5-fixing pin, 6-locking groove, 7-locking assembly, 7.1-support plate, 7.2-first locking elastic member, 7.3-adjusting member, 7.4-disassembly component, 8-locking bead, 9-adjusting hole, 10-operating hole, 11-screwing portion, 12-resetting elastic member, 13-movable sleeve, 13.1-second large hole portion, 13.2-second reduced diameter portion, 13.3-second small hole portion, 14-accommodating hole, 15-first sealing member, 16-second sealing member, 17-ventilation hole, 18-second locking elastic member, 19-disassembly elastic member, 20-guide ring. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0040] The utility model provides a tread mold, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, it includes a slider 1, a tread block 2, and a connecting device, etc. The tread block 2 is installed on the inner side of the slider 1 through the connecting device, and the inner side of the tread block 2 is provided with a tread structure suitable for molding a tire.

[0041] Specifically, the connection device includes a fixing sleeve 3, a fixing pin 5, a locking assembly 7, a locking bead 8, etc. A mounting hole 4 is provided on the inner side of the slider 1, and the fixing sleeve 3 is fixedly provided in the mounting hole 4; one end of the fixing pin 5 is connected to the pattern block 2, and the other end extends into the inner cavity of the fixing sleeve 3, and a locking groove 6 is provided on the outer peripheral side of the portion of the fixing pin 5 extending into the inner cavity of the fixing sleeve 3; the locking assembly 7 is at least partially provided in the mounting hole 4, and the locking assembly 7, the fixing pin 5 and the fixing sleeve 3 jointly define a locking cavity, and the locking bead 8 is provided in the locking cavity, and the locking assembly 7 is suitable for moving along the axial direction of the fixing sleeve 3 to reduce the locking cavity and push the locking bead 8 to be stuck in the locking groove 6, thereby fixing the pattern block 2 on the inner side of the slider 1, or expanding the locking cavity to make the locking bead 8 disengage from the locking groove 6, so that the pattern block 2 can be removed from the slider 1. By installing the pattern block 2 on the inner side of the slider 1 through the connection device, the pattern block 2 and the slider 1 can be quickly assembled and disassembled, thereby improving the disassembly efficiency of the tread mold.

[0042] Example 1

[0043] Please refer to, Figure 1-Figure 4 In this embodiment, the locking assembly 7 includes a support plate 7.1 located in the inner cavity of the fixing sleeve 3, the side of the support plate 7.1 facing the pattern block 2 supports the locking bead 8, and the side of the support plate 7.1 facing away from the pattern block 2 is provided with a driving component, and the driving component is suitable for driving the support plate 7.1 to move along the axial direction of the fixing sleeve 3; the end of the fixing sleeve 3 close to the pattern block 2 is provided with a blocking portion, and the end of the fixing pin 5 away from the pattern block 2 passes through the blocking portion and extends into the inner cavity of the fixing sleeve 3, and the support plate 7.1, the fixing pin 5 and the blocking portion jointly define a locking cavity. The locking bead 8 is accommodated in the locking cavity, and the driving component drives the support plate 7.1 to gradually approach the pattern block 2, so as to push against the locking bead 8 so that it is partially stuck in the locking groove 6, thereby fixing the pattern block 2 on the inner side of the slider 1; the driving component drives the support plate 7.1 away from the pattern block 2 to make the locking bead 8 disengage from the locking groove 6, so that the pattern block 2 can be removed from the slider 1.

[0044] Specifically, in this embodiment, the fixing sleeve 3 can be threadedly connected in the mounting hole 4 , and one end of the fixing pin 5 can be threadedly connected to the pattern block 2 .

[0045] Further, the driving component includes a first locking elastic member 7.2 and an adjusting member 7.3, an adjusting hole 9 is provided at the bottom of the mounting hole 4, the adjusting member 7.3 is threadedly connected in the adjusting hole 9, the two ends of the first locking elastic member 7.2 abut against the support plate 7.1 and the adjusting member 7.3 respectively, the first locking elastic member 7.2 drives the support plate 7.1 to approach the pattern block 2 and abuts against the locking bead 8 so that it is partially stuck in the locking groove 6, and the locking force of the first locking elastic member 7.2 can be adjusted by screwing the adjusting member 7.3. The first locking elastic member 7.2 can be specifically a locking spring, etc., and the adjusting member 7.3 can be specifically an adjusting screw or other components.

[0046] In an optional embodiment, the driving component further includes a disassembly component 7.4, the tread mold is provided with an operation hole 10 connecting the mounting hole 4 and the outside of the slider 1, and the disassembly component 7.4 penetrates the operation hole 10 and is connected to the support plate 7.1. Pulling the disassembly component 7.4 can make the support plate 7.1 away from the tread block 2, the locking bead 8 can be separated from the locking groove 6, and the tread block 2 can be disassembled from the slider 1.

[0047] Furthermore, the operating hole 10 is arranged on the adjusting member 7.3, that is, the adjusting member 7.3 is provided with a through hole; or the operating hole 10 can also be arranged on the slider 1, and the outer end of the operating hole 10 is located on the back of the slider 1; the disassembly component 7.4 can specifically be a pull rope or a pull rod, and the end of the disassembly component 7.4 away from the support plate 7.1 extends out of the operating hole 10.

[0048] In an optional embodiment, a screwing portion 11 may be provided at one end of the adjusting component away from the pattern block 2, and the adjusting member 7.3 may be screwed to gradually move away from the pattern block 2, so that the support plate 7.1 can move away from the pattern block 2, the lock bead 8 can be separated from the locking groove 6, and the pattern block 2 can be removed from the slider 1. The screwing portion 11 may be a groove structure. In an optional embodiment, a reset elastic member 12 is further provided between the lock bead 8 and the blocking portion, and the reset elastic member 12 may specifically be a reset spring. One end of the reset spring abuts against the blocking portion, and the other end abuts against the lock bead 8. When the support plate 7.1 moves away from the pattern block 2, the space of the locking cavity gradually increases, and the lock bead 8 gradually escapes from the locking groove 6 under the action of the reset spring. And / or, the support surface of the support plate 7.1 supporting the lock bead 8 gradually decreases in the radially outward direction, and when the support plate 7.1 moves away from the pattern block 2, the space of the locking cavity gradually increases, and the lock bead 8 can roll along the inclined surface and smoothly escape from the locking groove 6.

[0049] In an optional embodiment, the blocking portion includes a first large hole portion 3.3, a first reduced diameter portion 3.1 and a first small hole portion 3.2 which are arranged in sequence. The inner diameter of the first reduced diameter portion 3.1 gradually decreases in the direction approaching the pattern block 2. The inner wall of the first reduced diameter portion 3.1 can be a conical surface. The first small hole portion 3.2 is arranged at one end of the first reduced diameter portion 3.1 close to the pattern block 2. The arrangement of the first reduced diameter portion 3.1 enables the locking bead 8 to move along the inner wall of the first reduced diameter portion 3.1 and enter the locking groove 6 when the support plate 7.1 approaches the pattern block 2, thereby locking the fixing pin 5.

[0050] Furthermore, the first small hole portion 3 . 2 is provided with a stepped hole, and one end of the resetting elastic member 12 abuts against a shoulder of the stepped hole, so as to facilitate the positioning and installation of the resetting elastic member 12 .

[0051] In an optional embodiment, the locking groove 6 is an annular groove, the support plate 7.1 is provided with a limiting groove, the locking ball 8 is arranged in the limiting groove, and the limiting groove is used to limit the circumferential position of the locking ball 8. Preferably, there are multiple locking beads 8, and multiple corresponding limiting grooves are provided, and the multiple limiting grooves are evenly arranged along the circumferential direction, so that the fixing pin 5 can be locked from multiple circumferential positions.

[0052] Specifically, a plurality of limiting plates arranged in the circumferential direction are provided on one side of the support plate 7.1, and a limiting groove is formed between two connected limiting plates; or, a groove is provided on one side of the support plate 7.1 to form the limiting groove.

[0053] In an optional embodiment, a disassembly elastic member 19 is further provided between the pattern block 2 and the slider 1. When the locking device releases the pattern block 2, the pattern block 2 automatically detaches from the slider 1 under the action of the elastic force of the disassembly elastic member 19. The disassembly elastic member 19 can be a disassembly spring. A concave hole is provided on the pattern block 2 or the slider 1, and one end of the disassembly elastic member 19 is arranged in the concave hole.

[0054] Example 2

[0055] The difference between this embodiment and embodiment 1 is that the structure of the connecting device is different. Figure 5-Figure 7 The locking assembly 7 includes a movable sleeve 13 sleeved on the outside of the fixed sleeve 3, and the movable sleeve 13 includes a second large hole portion 13.1, a second reduced diameter portion 13.2 and a second small hole portion 13.3 arranged in sequence. The fixed sleeve 3 is provided with a receiving hole 14 in the radial direction, and the receiving hole 14 penetrates the fixed sleeve 3 in the radial direction, and the locking ball 8 is located in the receiving hole 14. The diameter of the radial inner port of the receiving hole 14 is preferably smaller than the diameter of the locking ball 8, so as to prevent the locking ball 8 from escaping from the radial inner port of the receiving hole 14. The inner diameter of the second reduced diameter portion 13.2 gradually decreases in the direction close to the second small hole portion 13.3, and the inner wall surface of the second reduced diameter portion 13.2 can be a conical surface.

[0056] A first seal 15 is provided between the outer wall of the movable sleeve 13 and the inner wall of the mounting hole 4, a second seal 16 is provided between the second large hole portion 13.1 of the movable sleeve 13 and the outer wall of the fixed sleeve 3, the mounting hole 4, the fixed sleeve 3 and the second large hole portion 13.1 jointly define a compression chamber, the slider 1 is provided with a vent hole 17 connecting the compression chamber and the outside of the slider 1, and a second locking elastic member 18 is provided between the second small hole portion 13.3 and the fixed sleeve 3. Specifically, a support portion extending in a longitudinal direction is detachably provided on the top of the fixed sleeve 3, and the support portion may be annular, so as to facilitate the assembly of the movable sleeve 13 and the fixed sleeve 3.

[0057] The locking spring drives the movable sleeve 13 to move axially along the fixed sleeve 3, the locking cavity gradually shrinks, and the second diameter reduction portion 13.2 pushes against the locking bead 8 to enter the locking groove 6, thereby locking the fixing pin 5. When the pattern block 2 needs to be removed, compressed gas is introduced into the compression cavity through the vent hole 17 to drive the movable sleeve 13 to overcome the elastic force of the locking spring and move axially along the fixed sleeve 3, the locking cavity gradually expands, and the locking bead 8 can be separated from the locking groove 6, thereby removing the pattern block 2 from the slider 1.

[0058] The utility model also proposes a tire mold, please refer to Figure 8 , including a guide ring 20, a plurality of tread molds as those in embodiment 1 or embodiment 2 are arranged on the inner side of the guide ring 20, and the plurality of tread molds are arranged on the inner side of the guide ring 20 along the circumferential direction.

[0059] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tread mold, comprising a slider (1) and a tread block (2), wherein the tread block (2) is arranged on the inner side of the slider (1), characterized in that: Also includes: A fixing sleeve (3) is arranged in a mounting hole (4) on the inner side of the sliding block (1); A fixing pin (5), one end of which is connected to the tread block (2) and the other end of which extends into the inner cavity of the fixing sleeve (3); a locking groove (6) is provided on the outer peripheral side of the portion of the fixing pin (5) extending into the inner cavity of the fixing sleeve (3); A locking assembly (7) is at least partially arranged in the mounting hole (4); the locking assembly (7), the fixing pin (5) and the fixing sleeve (3) jointly define a locking cavity; a locking ball (8) is arranged in the locking cavity; the locking assembly (7) is suitable for moving along the axial direction of the fixing sleeve (3) to reduce the locking cavity and push the locking ball (8) to be stuck in the locking groove (6), or to expand the locking cavity to make the locking ball (8) disengage from the locking groove (6).

2. A tread mold according to claim 1, characterized in that: The locking assembly (7) comprises a support plate (7.1) located in the inner cavity of the fixing sleeve (3), the side of the support plate (7.1) facing the tread block (2) supports the locking bead (8), and the side of the support plate (7.1) facing away from the tread block (2) is provided with a driving component, and the driving component is suitable for driving the support plate (7.1) to move along the axial direction of the fixing sleeve (3); The fixing sleeve (3) comprises a blocking portion close to one end of the tread block (2); one end of the fixing pin (5) away from the tread block (2) passes through the blocking portion and extends into the inner cavity of the fixing sleeve (3); the support plate (7.1), the fixing pin (5) and the blocking portion jointly define the locking cavity.

3. A tread mold according to claim 2, characterized in that: The driving component comprises a first locking elastic member (7.2) and an adjusting member (7.3); an adjusting hole (9) is provided at the bottom of the mounting hole (4); the adjusting member (7.3) is threadedly connected in the adjusting hole (9); and two ends of the first locking elastic member (7.2) respectively abut against the support plate (7.1) and the adjusting member (7.3).

4. A tread mold according to claim 3, characterized in that: The tread mold is provided with an operating hole (10) communicating with the mounting hole (4) and the outside of the slider (1); a disassembly component (7.4) passes through the operating hole (10) and is connected to the support plate (7.1).

5. A tread mold according to claim 4, characterized in that: The operating hole (10) is arranged on the adjusting member (7.3); And / or, the disassembly component (7.4) is a pull rope or a pull rod.

6. A tread mold according to claim 2, characterized in that: A resetting elastic member (12) is also provided between the locking bead (8) and the blocking portion; And / or, the supporting surface of the support plate (7.1) supporting the locking bead (8) gradually decreases in the radially outward direction; And / or, the blocking portion comprises a first reduced diameter portion (3.1) and a first small hole portion (3.2), the inner diameter of the first reduced diameter portion (3.1) gradually decreases in a direction approaching the pattern block (2), and the first small hole portion (3.2) is arranged at one end of the first reduced diameter portion (3.1) close to the pattern block (2).

7. A tread mold according to claim 2, characterized in that: The locking groove (6) is an annular groove, the support plate (7.1) is provided with a limiting groove, and the locking bead (8) is arranged in the limiting groove.

8. A tread mold according to claim 2, characterized in that: The locking assembly (7) comprises a movable sleeve (13) sleeved on the outside of the fixed sleeve (3), the movable sleeve (13) comprising a second large hole portion (13.1), a second reduced diameter portion (13.2) and a second small hole portion (13.3) arranged in sequence, the fixed sleeve (3) being provided with a receiving hole (14) in the radial direction, and the locking bead (8) being located in the receiving hole (14); A first sealing member (15) is provided between the outer wall of the movable sleeve (13) and the inner wall of the mounting hole (4); a second sealing member (16) is provided between the second large hole portion (13.1) of the movable sleeve (13) and the outer wall of the fixed sleeve (3); the mounting hole (4), the fixed sleeve (3) and the second large hole portion (13.1) jointly define a compression chamber; the slider (1) is provided with a vent hole (17) connecting the compression chamber with the outside of the slider (1); and a second locking elastic member (18) is provided between the second small hole portion (13.3) and the fixed sleeve (3).

9. A tread mold according to any one of claims 1 to 8, characterized in that: A disassembly elastic member (19) is also provided between the pattern block (2) and the sliding block (1).

10. A tire mold, comprising a guide ring (20), characterized in that: A plurality of tread molds as described in any one of claims 1 to 9 are arranged on the inner side of the guide ring (20).

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