Tire conductive adhesive extrusion preforming die

Abstract

The utility model provides a tire conductive adhesive extrusion pre-die which comprises a pre-die body, a conductive adhesive channel is arranged on the upper portion of the pre-die body, the bottom of the conductive adhesive channel is detachably connected with a conductive groove block, a plurality of conductive groove bodies are arranged on the conductive groove block, and the conductive groove bodies are connected with the conductive adhesive channel. Corresponding conductive groove blocks can be replaced at any time according to the positions of pattern grooves in different tires, so that the extrusion position of conductive adhesive can effectively avoid the positions of the pattern grooves of the tires, the continuity of electric conduction is enhanced, the safety of drivers is ensured, the production cost is reduced, the whole preform body does not need to be replaced, and meanwhile, the structural design of multiple extrusion channels is adopted, so that the production efficiency is improved. And the extrusion position of the conductive adhesive can extend towards two sides by taking the center of the preformed die body as a reference, so that the requirement of the conductive adhesive on the tire tread is met.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production equipment, and particularly relates to an extrusion pre-orifice for tire conductive glue. Background Art

[0002] Low-carbon new energy is another "power revolution" after steam and electricity. From the perspective of the development trend in the world today, the development of low-carbon economy relies on the support of "low-carbon technologies". In the production and manufacturing of green radial tires, it is necessary to innovate in terms of tire structure, achieve the iteration of product technology, realize the low energy consumption of automobiles, and promote the development of new energy vehicles, ultimately achieving the policy goals of energy conservation, emission reduction, and the development of circular economy.

[0003] In order to meet the requirements of new energy vehicles, their tires mostly adopt a structure with increased conductive glue to provide safety protection. Since the position of the conductive glue needs to avoid the tread groove position of the tire, and the tread groove positions of different specifications of tires are different, it is necessary to provide diverse conductive glue position solutions. The traditional pre-orifice is in a one-to-one form, and the extrusion position of the conductive glue is fixed, which can only provide a single conductive glue position and cannot meet the diverse needs of tires. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned technical deficiencies and provide an extrusion pre-orifice for tire conductive glue.

[0005] To this end, the utility model provides an extrusion pre-orifice for tire conductive glue, including a pre-orifice body. A conductive glue channel is arranged at the upper part of the pre-orifice body. A conductive groove block is detachably connected to the bottom of the conductive glue channel, and a plurality of conductive grooves are arranged on the conductive groove block.

[0006] Preferably, the plurality of conductive grooves are arranged in parallel.

[0007] Preferably, the conductive groove block includes a fixing plate and a clamping plate. The fixing plate is fixedly installed at the bottom of the conductive glue channel through bolts. The fixing plate and the conductive glue channel are on the same inclined plane. The top of the conductive groove is fixedly connected to the fixing plate, and the lower part of the conductive groove is fixedly connected to the clamping plate. The clamping plate is clamped on the pre-orifice body.

[0008] Preferably, the conductive groove includes an inlet hole, a long strip groove, and a groove body. The inlet hole is opened at the top of the groove body, and the inlet hole is arranged on the inclined plane of the fixing plate. The long strip groove is opened on the outer side of the groove body. The top of the long strip groove is communicated with the inlet hole, and the bottom of the long strip groove extends to the bottom of the groove body.

[0009] Preferably, a plurality of small sidewall rubber channels are further provided on the upper part of the pre-profile body, and the conductive rubber channels are located between the small sidewall rubber channels.

[0010] Preferably, a crown rubber channel and a bottom crown rubber channel are further provided on the pre-profile body. The crown rubber channel and the bottom crown rubber channel merge into a crown rubber channel on the front surface of the pre-profile body, and a base rubber channel is provided at the lower part of the pre-profile body.

[0011] Preferably, the conductive groove body straddles the crown rubber channel, and the clamping plate is clamped with the base rubber channel.

[0012] Preferably, the top of the clamping plate is on the same inclined plane as the crown rubber channel, and the bottom of the clamping plate is on the same inclined plane as the base rubber channel.

[0013] The beneficial effects of the present utility model are as follows: The present utility model provides a tire conductive rubber extrusion pre-profile, which has the following beneficial effects.

[0014] ⑴ The detachable connection between the conductive groove block and the pre-profile body allows for the replacement of the corresponding conductive groove block at any time according to the position of the tread groove on different tires, enabling the extrusion position of the conductive rubber to effectively avoid the position of the tire tread groove, enhancing the continuity of conductivity, ensuring the safety of the driver, and at the same time reducing production costs without the need to replace the entire pre-profile body;

[0015] ⑵ A plurality of conductive groove bodies are arranged in parallel on the conductive groove block, and the conductive rubber is extruded from the plurality of conductive groove bodies. The structural design of multiple extrusion channels enables the extrusion position of the conductive rubber to extend from the center of the pre-profile body to both sides, meeting the requirements of the tire tread conductive rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front structural schematic diagram of the tire conductive rubber extrusion pre-profile in this embodiment;

[0017] Figure 2 is a back structural schematic diagram of the tire conductive rubber extrusion pre-profile in this embodiment;

[0018] Figure 3 is a structural schematic diagram of the conductive groove block and the conductive groove body in this embodiment.

[0019] Markings in the figure: 1. Pre-profile body; 2. Conductive rubber channel; 3. Conductive groove block; 31. Fixed plate; 32. Clamping plate; 4. Conductive groove body; 41. Inlet hole; 42. Long strip groove; 43. Groove body; 5. Bolt; 6. Small sidewall rubber channel; 7. Upper crown rubber channel; 8. Bottom crown rubber channel; 9. Crown rubber channel; 10. Base rubber channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present utility model. The methods used in the present utility model are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0021] Embodiment:

[0022] As Figures 1 to 3 shown, the present utility model provides an extrusion pre-orifice for tire conductive glue, including a pre-orifice body 1, the pre-orifice body 1 is matched with the orifice frame of the extruder head part, a conductive glue channel 2 is arranged on the upper part of the pre-orifice body 1, a conductive groove block 3 is detachably connected to the bottom of the conductive glue channel 2, a plurality of conductive grooves 4 are arranged on the conductive groove block 3, and the plurality of conductive grooves 4 are arranged in parallel.

[0023] In this embodiment, the number of the conductive grooves 4 is two, the minimum distance between the two conductive grooves 4 is 8 mm, the width of the internal channel of the conductive groove 4 is 2 - 3 mm, the position range of the conductive glue can be 40 mm on each side with the center of the pre-orifice body 1 as the reference, which can meet the demand for conductive glue within the range of 80 mm in the center area of the tread. Both the double conductive glues can penetrate through the entire tread, and the width of the conductive glue after vulcanization is 1 - 2 mm, and the measured resistance of the tire can reach the order of 10^7.

[0024] Furthermore, the conductive groove block 3 includes a fixing plate 31 and a clamping plate 32. The fixing plate 31 is fixedly installed at the bottom of the conductive glue channel 2 through a bolt 5. The bolt 5 is an internal hexagonal bolt. The fixing plate 31 and the conductive glue channel 2 are on the same inclined plane. The top of the conductive groove 4 is fixedly connected to the fixing plate 31, the lower part of the conductive groove 4 is fixedly connected to the clamping plate 32, and the clamping plate 32 is clamped on the pre-orifice body 1.

[0025] Furthermore, the conductive groove 4 includes an inlet hole 41, a long slot 42 and a groove body 43. The inlet hole 41 is opened at the top of the groove body 43. The inlet hole 41 is arranged on the inclined plane of the fixing plate 31. The long slot 42 is opened on the outer side of the groove body 43. The top of the long slot 42 is communicated with the inlet hole 41, and the bottom of the long slot 42 extends to the bottom of the groove body 43.

[0026] The conductive glue in the conductive glue channel 2 enters the two inlet holes 41 along the conductive glue channel 2, and thus enters the corresponding groove bodies 43, and then is extruded from the long slots 42 on the outer sides of the corresponding groove bodies 43, which can effectively avoid the positions of the tire tread grooves, enhance the continuity of the conductive glue on the tire tread, and has high safety performance.

[0027] Further, a plurality of small sidewall rubber channels 6 are provided on the upper part of the pre-profile body 1, and the conductive rubber channel 2 is located between the small sidewall rubber channels 6.

[0028] Further, a crown rubber channel 7 and a bottom crown rubber channel 8 are provided on the pre-profile body 1. The crown rubber channel 7 and the bottom crown rubber channel 8 merge into a crown rubber channel 9 on the front surface of the pre-profile body 1, and a base rubber channel 10 is provided at the lower part of the pre-profile body 1.

[0029] Further, the conductive groove body 4 straddles the crown rubber channel 9, and the clamping plate 32 is clamped with the base rubber channel 10.

[0030] Further, the top of the clamping plate 32 is on the same inclined plane as the crown rubber channel 9, and the bottom of the clamping plate 32 is on the same inclined plane as the base rubber channel 10.

[0031] The working principle of this embodiment is as follows:

[0032] The pre-profile body 1 is installed on an extruder. The corresponding colloids in the extruder are respectively extruded from the small sidewall rubber channels 6, the crown rubber channel 7, the bottom crown rubber channel 8, the base rubber channel 10 and the conductive rubber channel 2 on the pre-profile body 1. The conductive rubber enters the conductive rubber channel 2, follows the inclined plane of the conductive rubber channel 2 and enters the inlet hole 41, and then enters the inside of the groove body 43, and is then extruded through the corresponding long groove 42, meeting the demand for conductive rubber in the central area of the tire tread.

[0033] When it is necessary to replace the matching conductive groove block 3 according to different specifications and the positions of different tread grooves, turn the bolt 5, remove the conductive groove block 3, replace it with a matching conductive groove block 3, and finally tighten and fix it with the bolt 5.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation to the present invention.

[0035] However, the above are only specific embodiments of the present invention, and the scope of implementation of the present invention cannot be limited thereby. Therefore, the replacement of equivalent components or the equivalent changes and modifications made according to the scope of patent protection of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A tire conductive adhesive extrusion pre-orifice, comprising a pre-orifice body (1), characterized in that, The upper part of the pre-profile body (1) is provided with a conductive adhesive channel (2), and the bottom of the conductive adhesive channel (2) is detachably connected with a conductive groove block (3), and a plurality of conductive grooves (4) are arranged on the conductive groove block (3).

2. The extrusion pre-orifice of a tire conductive adhesive according to claim 1, wherein A plurality of the conductive grooves (4) are arranged in parallel.

3. A tire conductive adhesive extrusion pre-die according to claim 1, characterized in that, The conductive groove block (3) includes a fixing plate (31) and a clamping plate (32). The fixing plate (31) is fixedly installed at the bottom of the conductive adhesive channel (2) through a bolt (5). The fixing plate (31) and the conductive adhesive channel (2) are on the same inclined plane. The top of the conductive groove (4) is fixedly connected with the fixing plate (31), the lower part of the conductive groove (4) is fixedly connected with the clamping plate (32), and the clamping plate (32) is clamped on the pre-profile body (1).

4. A tire conductive adhesive extrusion pre-die according to claim 3, characterized in that, The conductive groove (4) includes an inlet hole (41), a long strip groove (42) and a groove body (43). The inlet hole (41) is opened at the top of the groove body (43). The inlet hole (41) is arranged on the inclined plane of the fixing plate (31). The long strip groove (42) is opened on the outer side of the groove body (43). The top of the long strip groove (42) is communicated with the inlet hole (41), and the bottom of the long strip groove (42) extends to the bottom of the groove body (43).

5. A tire conductive adhesive extrusion pre-orifice according to claim 1, characterized in that, The upper part of the pre-profile body (1) is further provided with a plurality of small sidewall rubber channels (6), and the conductive adhesive channel (2) is located between the small sidewall rubber channels (6).

6. A tire conductive adhesive extrusion pre-orifice according to claim 3, characterized in that, The pre-profile body (1) is further provided with an upper crown rubber channel (7) and a lower crown rubber channel (8). The upper crown rubber channel (7) and the lower crown rubber channel (8) are merged into a crown rubber channel (9) on the front surface of the pre-profile body (1). The lower part of the pre-profile body (1) is provided with a base rubber channel (10).

7. A tire conductive adhesive extrusion pre-orifice according to claim 6, characterized in that, The conductive groove (4) straddles the crown rubber channel (9), and the clamping plate (32) is clamped with the base rubber channel (10).

8. A tire conductive adhesive extrusion pre-orifice according to claim 7, characterized in that, The top of the clamping plate (32) is on the same inclined plane as the crown rubber channel (9), and the bottom of the clamping plate (32) is on the same inclined plane as the base rubber channel (10).

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