Solid tire mold

Abstract

The utility model provides a solid tire mold, and belongs to the field of solid tire manufacturing. Comprising an upper die and a lower die, lifting lugs are fixedly connected to the two sides of the upper die and the two sides of the lower die, a handle is fixedly connected to the exterior of the lower die, and a bearing plate is fixedly connected to the exterior of the upper die and the exterior of the lower die; and the positioning assembly is used for improving the combination precision of the upper die and the lower die. By arranging the modularized upper die and the lower die, the utilization rate of the die is improved, the cavities have interchangeability, the machining and purchasing cost is reduced, the cavities have interchangeability, the dies of the same specification can be assembled for production by machining the same pieces, the component of the die cavity is made into parts, the maintenance time is shortened, and the maintenance cost is reduced. The cavity is composed of a plurality of assemblies and also has interchangeability, standard parts are achieved, the maintenance time and the maintenance cost can be greatly reduced, damaged parts can be replaced through parts, the waiting time of a machine table is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of solid tire manufacturing, in particular to a solid tire mold. Background Art

[0002] Solid tires are a type of tire that corresponds to pneumatic tires (hollow tires). Their carcass is solid, without cords as a skeleton, and does not need to be inflated, so no inner tube or airtight layer is required. The earliest tires were solid tires. Solid tires are only used for high-load vehicles or machinery traveling at low speeds, and are also used for machinery in fixed positions. Molds are required in the production process of solid tires.

[0003] However, the solid tire molds in the prior art are designed with an integral structure of one mold and one cavity. This mode leads to high mold costs, and it is difficult and time-consuming to repair when damaged. The high cost also affects the overall progress of production. Therefore, the utility model provides a solid tire mold to meet the demand. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A solid tire mold comprises an upper mold and a lower mold, both sides of the upper mold and the lower mold are fixedly connected with lifting ears, the outside of the lower mold is fixedly connected with a handle, and the outside of the upper mold and the lower mold are fixedly connected with a receiving plate; a positioning component, the positioning component is used to improve the accuracy of the combination of the upper mold and the lower mold, and the positioning component is connected to the lower mold.

[0006] Optionally, the upper mold includes an upper shoulder block, an upper side wall block and an upper bead block, and the upper shoulder block is fixedly connected to the upper side wall block on the opposite surfaces of the upper bead block by bolts, the cross-section of the upper side wall block is "T" shaped, and the opposite surfaces of the upper shoulder block and the upper bead block are in contact with both sides of the upper side wall block.

[0007] Optionally, the lower mold includes a lower shoulder block, a lower side block and a lower bead block, and the lower shoulder block and the lower bead block are fixedly connected to the lower side block on the opposite surfaces thereof by bolts, the cross-section of the lower side block is an inverted "T" shape, and the opposite surfaces of the lower shoulder block and the lower bead block are in contact with both sides of the lower side block.

[0008] Optionally, square glue overflow grooves are provided on the fitting surfaces of the lower shoulder block and the upper shoulder block, the number of the square glue overflow grooves is sixteen, and the sixteen square glue overflow grooves are circumferentially distributed between the lower shoulder block and the upper shoulder block.

[0009] Optionally, circular glue overflow grooves are provided on the fitting surfaces of the upper bead block and the lower bead block, the number of the circular glue overflow grooves is eight, and the eight circular glue overflow grooves are circumferentially distributed between the upper bead block and the lower bead block.

[0010] Optionally, the positioning assembly includes four positioning grooves opened at the four corners of the top of the lower mold, and the top of each positioning groove is fixedly connected to a positioning plate by bolts, a positioning hole is opened inside the positioning plate, and an annular protrusion is opened at the bottom of the positioning plate, the top of the positioning groove is matched with the outside of the annular protrusion, four mounting holes are opened at the four corners of the bottom of the upper mold at positions opposite to the positioning groove of the lower mold, and a positioning pin is fixedly connected to the inside of each mounting hole by bolts, and an arc-shaped guide surface is opened on the outside of the bottom end of the positioning pin.

[0011] Optionally, the circular glue overflow groove has a depth of four millimeters and a width of ten millimeters, and the square glue overflow groove has a depth of four millimeters and a width of fifteen millimeters.

[0012] Optionally, a large "O"-shaped overflow rubber channel is provided on the fitting surface of the lower shoulder block and the upper shoulder block, the large "O"-shaped overflow rubber channel is connected to the square overflow rubber groove, and an upper toe steel ring is arranged inside the large "O"-shaped overflow rubber channel, and a small "O"-shaped overflow rubber channel is provided on the fitting surface of the upper tire bead block and the lower tire bead block, the small "O"-shaped overflow rubber channel is connected to the circular overflow rubber groove, and a lower toe movable body is arranged inside the small "O"-shaped overflow rubber channel.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] In the above scheme, by setting up modular upper and lower molds, the utilization rate of the mold is improved, the cavity is interchangeable, and the processing and procurement costs are reduced. The cavity is interchangeable, and molds of the same specification can be assembled for production by processing the same parts, realizing the partization of the mold cavity components, reducing maintenance time and cost. The cavity is composed of multiple components, which are also interchangeable and standardized, which can greatly reduce maintenance time and maintenance costs, realize the replacement of damaged parts through parts, reduce machine waiting time, and improve production efficiency.

[0015] In the above scheme, the air holes inside the cavity can achieve the appearance of the solid tire without residual scraps of air holes, further reducing the time for trimming scraps. At the same time, the air concave positions of the solid tire are mainly concentrated at the shoulder, and the rubber deficiency positions are mainly at the shoulder and toe. The matching positions of the component parts are all here, which can achieve the exhaust effect and improve the fluidity of the rubber. At the toe, an O-shaped glue overflow channel is provided, which can also promote fluidity. It is also simple to remove the excess glue edge of the overflow part of the O-shaped mouth.

[0016] In the above scheme, the positioning assembly is provided to improve the accuracy of the upper and lower mold combinations. The arc-shaped guide surface at the bottom of the positioning pin helps to quickly and accurately complete the positioning, reducing the time for installation and adjustment. At the same time, when the equipment causes the mold to be misaligned, the positioning device is damaged first, reducing the damage to the mold cavity, reducing the cost and time of maintenance. At the same time, the positioning device is bolted, and the positioning device is part-by-part, so it can be quickly replaced after damage. Compared with the repair time and cost of a damaged cavity, the repair and replacement time of the positioning device is much less than that of a damaged cavity.

[0017] In the above scheme, the overflow glue groove is divided into circumferential type and divergent type. The divergent type is provided in both the upper and lower molds, and adopts a square overflow glue groove. The circumferential type is also provided in the upper and lower molds, and adopts one or more overflow glue grooves in two semicircular directions. With the action of the two overflow glue grooves, the excess rubber of the solid tire embryo can be overflowed, the cracks at the mold joint are reduced, and the accuracy of the upper and lower mold combination is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0019] Figure 1 is a cross-sectional view of a solid tire mold;

[0020] Figure 2 It is the top view of the lower mold;

[0021] Figure 3 It is a side view of the handle;

[0022] Figure 4 is a cross-sectional view of a positioning assembly;

[0023] Figure 5 This is a cross-sectional view of a square overflow groove.

[0024] [reference numerals]

[0025] 1. Upper mold; 101. Upper shoulder block; 102. Upper side block; 103. Upper bead block; 2. Lower mold; 201. Lower shoulder block; 202. Lower side block; 203. Lower bead block; 3. Lifting ear; 4. Square overflow groove; 5. Round overflow groove; 6. Handle; 7. Attachment plate; 8. Positioning plate; 9. Positioning pin; 10. Mounting hole.

[0026] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0027] The following is a detailed description of a solid tire mold provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0028] like Figures 1 to 3As shown, an embodiment of the utility model provides a solid tire mold, including an upper mold 1 and a lower mold 2, both sides of the upper mold 1 and the lower mold 2 are fixedly connected with a lifting ear 3, the outer side of the lower mold 2 is fixedly connected with a handle 6, and the outer side of the upper mold 1 and the lower mold 2 is fixedly connected with a receiving plate 7; the upper mold 1 includes an upper shoulder block 101, an upper side block 102 and an upper bead block 103, the upper shoulder block 101 is fixedly connected to the upper side block 102 on the opposite surface of the upper bead block 103 by bolts, the cross-section of the upper side block 102 is "T" shaped, and the upper shoulder block 101 The opposite surface of the upper tire bead block 103 is in contact with the two sides of the upper tire side block 102. The lower mold 2 includes a lower tire shoulder block 201, a lower tire side block 202 and a lower tire bead block 203. The lower tire shoulder block 201 is fixedly connected to the lower tire side block 202 on the opposite surface of the lower tire bead block 203 by bolts. The cross section of the lower tire side block 202 is an inverted "T" shape, and the opposite surface of the lower tire shoulder block 201 and the lower tire bead block 203 is in contact with the two sides of the lower tire side block 202. The solid tire mold is mainly composed of an upper mold 1 and a lower mold 2, and both sides are equipped with lifting ears 3 for easy handling and installation. A handle 6 is also fixed to the outside of the lower mold 2 for convenient manual operation. In addition, a receiving plate 7 is fixed to the outside of the upper mold 1 and the lower mold 2 for supporting and fixing the mold. The upper mold 1 is composed of three main parts. The upper shoulder block 101 and the upper bead block 103 are fixedly connected to the upper side block 102 by bolts on the opposite surface. The cross section of the upper side block 102 is "T" shaped to ensure that it fits tightly with the opposite surface of the upper shoulder block 101 and the upper bead block 103. The lower mold 2 is also composed of three main parts. The lower shoulder block 201 and the lower bead block 203 are fixedly connected to the lower side block 202 by bolts on the opposite surface. The cross section of the lower side block 202 is an inverted "T" shape to ensure It fits tightly with the opposite surfaces of the lower shoulder block 201 and the lower tire bead block 203. By setting up modular upper mold 1 and lower mold 2, the utilization rate of the mold is improved. The cavity is interchangeable, which reduces the processing and procurement costs. The cavity is interchangeable. Molds of the same specification can be assembled for production by processing the same parts, and the mold cavity components are part-based, which reduces maintenance time and cost. The cavity is composed of multiple components, which are also interchangeable and standardized, which can greatly reduce maintenance time and maintenance costs, realize the replacement of damaged parts, reduce machine waiting time, and improve production efficiency.

[0029] In this embodiment, if Figures 2 to 4The positioning assembly shown is used to improve the accuracy of the combination of the upper mold 1 and the lower mold 2. The positioning assembly is connected to the lower mold 2. The positioning assembly includes four positioning grooves opened at the four corners of the top of the lower mold 2, and the top of each positioning groove is fixedly connected to a positioning plate 8 by bolts. The interior of the positioning plate 8 is provided with a positioning hole, and the bottom of the positioning plate 8 is provided with an annular protrusion. The top of the positioning groove is adapted to the outside of the annular protrusion. Four mounting holes 10 are opened at the four corners of the bottom of the upper mold 1 relative to the positioning groove of the lower mold 2, and the interior of each mounting hole 10 is fixedly connected to a positioning pin 9 by bolts. , an arc-shaped guide surface is provided on the outside of the bottom end of the positioning pin 9, ensure that the four positioning grooves of the lower mold 2 are intact, and remove debris in the groove. The positioning plate 8 is ready to ensure that the positioning hole is clean and unobstructed. The four mounting holes 10 of the upper mold 1 also need to be clean and unobstructed. The four positioning plates 8 are fixed to the top of the four positioning grooves of the lower mold 2 by bolts, and the annular protrusions at the bottom of the positioning plates 8 are adapted to the top of the positioning grooves to ensure that the positioning plates 8 are stable and level. The four positioning pins 9 are fixed to the four mounting holes 10 at the bottom of the upper mold 1 by bolts, and the arc-shaped guide surface at the bottom end of the positioning pin 9 is set The design is helpful for subsequent quick and accurate insertion into the positioning hole of the positioning plate 8. Move the upper mold 1 to the top of the lower mold 2, ensure that the four positioning pins 9 at the bottom of the upper mold 1 are aligned with the four positioning plates 8 of the lower mold 2, slowly lower the upper mold 1, make the arc-shaped guide surface of the positioning pin 9 contact the positioning plate 8 first, and guide the positioning pin 9 to accurately insert into the positioning hole, continue to lower the upper mold 1, until the positioning pin 9 is completely inserted into the positioning hole, and complete the accurate combination of the upper mold 1 and the lower mold 2. The positioning assembly significantly improves the combination accuracy of the upper mold 1 and the lower mold 2 through the accurate cooperation of the positioning plate 8 and the positioning pin 9. The design of the shaped guide surface enables the positioning pin 9 to be quickly and accurately inserted into the positioning hole, reducing the time for installation and adjustment. When the equipment causes the mold to be misaligned, the positioning device is damaged first, reducing the chance of damage to the mold cavity and reducing maintenance costs. The positioning device is bolted and designed in parts, so it can be quickly replaced after damage. The repair and replacement time is much shorter than that of cavity damage. The rapid installation and adjustment process shortens the production preparation time and improves production efficiency. The stable connection of the positioning component enhances the overall stability of the mold and reduces production accidents caused by mold misalignment during the vulcanization process.

[0030] In this embodiment, if Figures 1 to 5As shown, the lower shoulder block 201 and the upper shoulder block 101 are provided with square overflow grooves 4, the number of which is sixteen, and the sixteen square overflow grooves 4 are circumferentially distributed between the lower shoulder block 201 and the upper shoulder block 101, and the upper bead block 103 and the lower bead block 203 are provided with circular overflow grooves 5, the number of which is eight, and the eight circular overflow grooves 5 are circumferentially distributed between the upper bead block 103 and the lower bead block 203. 03 and the lower bead block 203, the circular overflow groove 5 is 4 mm deep and 10 mm wide, the square overflow groove 4 is 4 mm deep and 15 mm wide, and a large "O"-shaped overflow path is also provided on the contact surface between the lower shoulder block 201 and the upper shoulder block 101, and the large "O"-shaped overflow path is connected to the square overflow groove 4, and an upper toe steel ring is provided inside the large "O"-shaped overflow path. The upper bead block 103 and the lower bead block 203 are connected to each other. A small "O"-shaped overflow glue channel is also provided on the fitting surface of 03, and the small "O"-shaped overflow glue channel is connected to the circular overflow glue groove 5. A lower toe movable body is arranged inside the small "O"-shaped overflow glue channel. The design of the square overflow glue groove 4 helps in the vulcanization molding process of the solid tire mold. When there is too much rubber in the shoulder part of the tire, the excess rubber can overflow through these channels to prevent deformation or defects caused by excessive rubber in the shoulder part after mold closing. Similar to the square overflow glue groove 4, the circular overflow glue groove 5 is also used in the vulcanization molding process. When there is too much rubber in the bead part of the tire (that is, the part where the edge of the tire meets the tread), the excess rubber can overflow to ensure the flatness and appearance quality of the tire edge. The large "O"-shaped overflow glue channel serves as a supplement to the square overflow glue groove 4. When the square overflow glue groove 4 cannot completely accommodate the excess rubber, the rubber can further overflow through this overflow glue channel. At the same time, since there is an upper toe steel ring inside the overflow channel, it can ensure that during the overflow process, the rubber will not flow randomly, but will overflow in an orderly manner along the shape of the steel ring. Similar to the large "O"-shaped overflow channel, the small "O"-shaped overflow channel is used to further accommodate and guide the excess rubber to overflow. The lower toe movable body inside can ensure that when the rubber overflows, it will not affect the shape and size of the tire bead area. The design of the overflow groove and overflow channel is an important part of the solid tire mold. Through reasonable layout and size design, they effectively solve the problems of tire deformation and appearance defects caused by excessive rubber during the vulcanization molding process, ensuring the product quality and production efficiency of solid tires.

[0031] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A solid tire mold, comprising an upper mold (1) and a lower mold (2), characterized in that: Both sides of the upper mold (1) and the lower mold (2) are fixedly connected with lifting ears (3), the outside of the lower mold (2) is fixedly connected with a handle (6), and the outside of the upper mold (1) and the lower mold (2) are fixedly connected with a receiving plate (7); A positioning component is used to improve the combination accuracy of the upper die (1) and the lower die (2), and the positioning component is connected to the lower die (2).

2. The solid tire mold according to claim 1, characterized in that: The upper mold (1) comprises an upper shoulder block (101), an upper sidewall block (102) and an upper tire bead block (103); the upper shoulder block (101) and the upper tire bead block (103) are fixedly connected to the upper sidewall block (102) on the opposite surfaces thereof by bolts; the cross section of the upper sidewall block (102) is T-shaped, and the opposite surfaces of the upper shoulder block (101) and the upper tire bead block (103) are in contact with both sides of the upper sidewall block (102).

3. The solid tire mold according to claim 2, characterized in that: The lower mold (2) comprises a lower tire shoulder block (201), a lower tire side block (202) and a lower tire bead block (203); the lower tire shoulder block (201) and the lower tire bead block (203) are fixedly connected to the lower tire side block (202) on the opposite surfaces thereof by bolts; the cross section of the lower tire side block (202) is an inverted "T" shape; and the opposite surfaces of the lower tire shoulder block (201) and the lower tire bead block (203) are in contact with both sides of the lower tire side block (202).

4. The solid tire mold according to claim 3, characterized in that: Square glue overflow grooves (4) are provided on the bonding surfaces of the lower shoulder block (201) and the upper shoulder block (101), and the number of the square glue overflow grooves (4) is sixteen, and the sixteen square glue overflow grooves (4) are circumferentially distributed between the lower shoulder block (201) and the upper shoulder block (101).

5. The solid tire mold according to claim 4, characterized in that: Circular glue overflow grooves (5) are provided on the bonding surfaces of the upper bead block (103) and the lower bead block (203), and the number of the circular glue overflow grooves (5) is eight, and the eight circular glue overflow grooves (5) are circumferentially distributed between the upper bead block (103) and the lower bead block (203).

6. The solid tire mold according to claim 1, characterized in that: The positioning assembly comprises four positioning grooves formed at the four corners of the top of the lower mold (2), and the top of each positioning groove is fixedly connected to a positioning plate (8) by bolts, a positioning hole is formed inside the positioning plate (8), and an annular protrusion is formed at the bottom of the positioning plate (8), and the top of the positioning groove is matched with the outside of the annular protrusion, four mounting holes (10) are formed at the four corners of the bottom of the upper mold (1) at positions opposite to the positioning groove of the lower mold (2), and a positioning pin (9) is fixedly connected to the inside of each mounting hole (10) by bolts, and an arc-shaped guide surface is formed on the outside of the bottom end of the positioning pin (9).

7. The solid tire mold according to claim 5, characterized in that: The circular overflow glue groove (5) has a groove depth of four millimeters and a groove width of ten millimeters, and the square overflow glue groove (4) has a groove depth of four millimeters and a groove width of fifteen millimeters.

8. The solid tire mold according to claim 7, characterized in that: A large "O"-shaped overflow rubber channel is also provided on the mating surface between the lower tire shoulder block (201) and the upper tire shoulder block (101), the large "O"-shaped overflow rubber channel is connected to the square overflow rubber groove (4), and an upper toe steel ring is arranged inside the large "O"-shaped overflow rubber channel. A small "O"-shaped overflow rubber channel is also provided on the mating surface between the upper tire bead block (103) and the lower tire bead block (203), the small "O"-shaped overflow rubber channel is connected to the circular overflow rubber groove (5), and a lower toe movable body is arranged inside the small "O"-shaped overflow rubber channel.

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