Composition board for synchronously extruding black and white tire sidewalls

Abstract

The utility model provides a composition board for synchronously extruding a black sidewall and a white sidewall, which solves the technical problem that the black sidewall and the white sidewall are respectively extruded in the traditional black and white sidewall production process, and then the two sidewalls with the same specification are matched for use, so that the size interface is asymmetric, and can be widely applied to the field of tire sidewall processing and manufacturing. The runner structure is specifically installed at the position of a glue outlet of an extruding machine head and is sequentially composed of three parallel runner plates, a pre-mouth-shaped plate and a mouth-shaped plate, one runner plate is used for being connected with a white glue outlet, one runner plate is used for being connected with a sidewall glue outlet, one runner plate is used for being connected with a seam allowance glue outlet, glue runners are formed in the runner plates, and the mouth-shaped plate is used for being connected with the mouth-shaped plate. The extrusion head is connected with a glue outlet of the extrusion head; a flow choking block is additionally arranged in the colloid runner and is used for adjusting the shape of semi-finished colloid flowing out of the colloid runner; the preformed die plate is divided into a left part and a right part, two runners are formed in the left side, and three runners are formed in the right side.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire sidewall processing and manufacturing, and particularly relates to a combined plate for synchronous extrusion of black and white sidewalls. Background Art

[0002] The traditional black and white sidewall production process usually extrude the black sidewall and the white sidewall separately, and then use the two sidewalls of the same specification together. This process has the following problems:

[0003] Asymmetric size interface: Since the black and white sidewalls of tires of the same specifications are extruded separately and then bonded together for use, the black and white sidewalls are asymmetric in the size interface, affecting the performance of the tire.

[0004] Complex production: The traditional process requires multiple extrusions and then pairing, which increases production costs and efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the above-mentioned technology and provide a XX device.

[0006] To this end, the utility model provides a combined plate for synchronous extrusion of black and white sidewalls, which is installed at the glue outlet position of the extruder head and is composed of three parallel flow channel plates, a pre-die plate and a die plate in sequence. Among the three flow channel plates, one is used to connect the white glue outlet, one is used to connect the sidewall glue outlet, and one is used to connect the sub-die glue outlet. The colloid flow channel opened on the flow channel plate is connected to the glue outlet of the extruder head; a flow block is added in the colloid flow channel to adjust the shape of the semi-finished colloid flowing out of the colloid flow channel.

[0007] Furthermore, the pre-mouth mold plate is divided into two parts, left and right, with two flow channels on the left and three flow channels on the right; the right side of the pre-mouth mold plate is composed of an upper white glue flow channel, a middle sidewall glue flow channel and a lower sub-mouth glue flow channel; the white glue flow channel is connected to the flow channel plate connected to the white glue outlet, the sidewall glue flow channel is connected to the flow channel plate connected to the sidewall glue outlet, and the sub-mouth glue flow channel is connected to the flow channel plate connected to the tire sub-mouth glue outlet.

[0008] Furthermore, the shape of the flow channel of the pre-mouth plate is a large inlet and a small outlet.

[0009] Furthermore, the flow channel inlet size of the pre-mouth plate matches the outlet size of the flow channel plate.

[0010] Furthermore, a white glue flow channel and a black glue flow channel are provided on the die plate, the white glue flow channel of the die plate is connected to the white glue flow channel of the pre-die plate, and the black glue flow channel is connected to the sidewall glue flow channel and the sub-die glue flow channel of the pre-die plate.

[0011] Furthermore, a white glue inlet is provided on the back of the die plate, and a guide panel is added to the white glue inlet so that the white glue extruded from the pre-die plate directly flows into the white glue flow channel through the guide panel.

[0012] The utility model provides a composite plate with synchronous extrusion of black and white sidewalls, which has the following beneficial effects:

[0013] By using the utility model, the process flow is simplified, the production links are reduced, the production cost and time are reduced, the dimensional symmetry is improved, the appearance quality of the black and white sidewalls is improved, and the overall quality of the tire is improved.

[0014] By setting the pre-mouth plate, the shape of the sidewall rubber flow channel outlet and the sub-mouth rubber flow channel outlet can be changed, so that the sidewall rubber and the sub-mouth rubber can form a specific boundary during extrusion to meet product requirements. By setting the guide panel, the white rubber extruded by the pre-mouth plate can flow directly into the white rubber flow channel through the guide panel to prevent mixing with the sidewall rubber and the sub-mouth rubber.

[0015] By providing the flow blocking block, the shape of the semi-finished colloid flowing out of the colloid flow channel can be adjusted so that the shape of the semi-finished colloid is close to a rectangle and the thickness is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the flow plate of the utility model;

[0017] Figure 2 yes Figure 1 Section along DD;

[0018] Figure 3 It is the front structural diagram of the pre-mouth plate of the utility model;

[0019] Figure 4 It is the back structural diagram of the pre-mouth plate of the utility model;

[0020] Figure 5 It is the front structural diagram of the mouth plate of the utility model;

[0021] Figure 6 It is the back structural diagram of the mouth plate of the utility model;

[0022] Markings in the figure: 1. runner plate; 2. pre-mouth plate; 3. mouth plate; 4. colloid flow channel; 5. flow block; 6. guide panel; 7. black rubber flow channel; 8. white rubber inlet; 9. white rubber flow channel; 10. sidewall rubber flow channel; 11. sub-mouth rubber flow channel. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercial products unless otherwise specified.

[0024] The utility model provides a composite plate for synchronous extrusion of black and white sidewalls, which is installed at the glue outlet of the extruder head and is composed of three parallel flow channel plates 1, a pre-die plate 2 and a die plate 3. Figure 1 As shown in FIG. 2 , one of the three flow channel plates 1 is used to connect the white glue outlet, one is used to connect the tire side glue outlet, and one is used to connect the sub-mouth glue outlet. The flow channel plate 1 is provided with a colloid flow channel 4 that runs through the front and rear ends of the flow channel plate 1 and is connected to the glue outlet of the extruder head. Since the pressure distribution of the extruder head is high in the middle and low on both sides, the shape of the semi-finished colloid flowing out of the colloid flow channel 4 is thin in the middle and thick on both sides, and the thickness of the semi-finished colloid is uneven; therefore, a flow block 5 is added to the colloid flow channel 4. Through multiple experiments, a flow block 5 of a specific shape is selected to adjust the shape of the semi-finished colloid flowing out of the colloid flow channel 4, so that the shape of the semi-finished colloid is close to a rectangle and the thickness is more uniform.

[0025] like Figure 3 As shown in FIG. 4 , the pre-mouth mold plate 2 is divided into two parts, the left side has two flow channels, and the right side has three flow channels. The right side of the pre-mouth mold plate 2 used in this process is composed of the upper white glue flow channel 9, the middle sidewall glue flow channel 10 and the lower sub-mouth glue flow channel 11. The white glue flow channel 9 is connected to the flow channel plate 1 connected to the white glue outlet, the sidewall glue flow channel 10 is connected to the flow channel plate 1 connected to the sidewall glue outlet, and the sub-mouth glue flow channel 11 is connected to the flow channel plate 1 connected to the tire sub-mouth glue outlet. The shape of the flow channel of the pre-mouth mold plate 2 is large inlet and small outlet, which can ensure the tightness of the sidewall product. The flow channel inlet size of the pre-mouth mold plate 2 matches the outlet of the flow channel plate 1 to ensure smooth and resistance-free flow of the colloid. By setting the pre-mouth mold plate 2, the shape of the outlet of the sidewall glue flow channel 10 and the outlet of the sub-mouth glue flow channel 11 can be changed, so that the sidewall glue and the sub-mouth glue can form a specific boundary during extrusion to meet product requirements.

[0026] like Figure 5 As shown in FIG. 6 , a white glue flow channel 9 and a black glue flow channel 7 are provided on the die plate 3. The white glue flow channel 9 of the die plate 3 is connected to the white glue flow channel 9 of the pre-die plate 2, and the black glue flow channel 7 is connected to the sidewall glue flow channel 10 and the sub-die glue flow channel 11 of the pre-die plate 2. A white glue inlet 8 is provided on the back of the die plate 3, and a guide panel 6 is added to the white glue inlet 8, so that the white glue extruded from the pre-die plate 2 flows directly into the white glue flow channel 9 through the guide panel 6 to prevent mixing with the sidewall glue and the sub-die glue. The sidewall glue and the sub-die glue extruded from the pre-die plate 2 enter the black glue flow channel 7, and the white glue, the sidewall glue and the sub-die glue are pressed and molded in the flow channel of the die plate 3.

[0027] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A composite plate for synchronous extrusion of black and white sidewalls, installed at the glue outlet of the extruder head, sequentially composed of three parallel flow channel plates, a pre-die plate and a die plate, characterized in that: One of the three flow channel plates is used to connect the white glue outlet, one is used to connect the sidewall glue outlet, and one is used to connect the sub-mouth glue outlet. The colloid flow channel opened on the flow channel plate is connected to the glue outlet of the extruder head; a flow block is added in the colloid flow channel to adjust the shape of the semi-finished colloid flowing out of the colloid flow channel.

2. The composite board with synchronous extrusion of black and white sidewalls according to claim 1, characterized in that: The pre-mouth mold plate is divided into two parts, left and right, with two flow channels on the left and three flow channels on the right; the right side of the pre-mouth mold plate is composed of an upper white glue flow channel, a middle sidewall glue flow channel and a lower sub-mouth glue flow channel; the white glue flow channel is connected to the flow channel plate connected to the white glue outlet, the sidewall glue flow channel is connected to the flow channel plate connected to the sidewall glue outlet, and the sub-mouth glue flow channel is connected to the flow channel plate connected to the tire sub-mouth glue outlet.

3. A composite board with synchronous extrusion of black and white sidewalls according to claim 1 or 2, characterized in that: The shape of the flow channel of the pre-mouth plate is a large inlet and a small outlet.

4. The composite board with synchronous extrusion of black and white sidewalls according to claim 3, characterized in that: The flow channel inlet size of the pre-mouth plate matches the outlet size of the flow channel plate.

5. The composite board with synchronous extrusion of black and white sidewalls according to claim 4, characterized in that: The die plate is provided with a white glue flow channel and a black glue flow channel. The white glue flow channel of the die plate is connected to the white glue flow channel of the pre-die plate, and the black glue flow channel is connected to the sidewall glue flow channel and the sub-die glue flow channel of the pre-die plate.

6. The composite board with synchronous extrusion of black and white sidewalls according to claim 4, characterized in that: A white glue inlet is arranged on the back of the die plate, and a guide panel is added to the white glue inlet so that the white glue extruded from the pre-die plate directly flows into the white glue flow channel through the guide panel.

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