Preforming die device

Abstract

The utility model provides a pre-die device which comprises a pre-die body which comprises a top face and a bottom face. The sizing material runner is arranged in the pre-die body and is used for circulating sizing materials; the weight reduction part is arranged on the top surface and / or the bottom surface, the weight reduction part is sunken towards the middle direction of the preformed die body relative to the top surface and / or the bottom surface, and the weight reduction part is of a symmetrical structure relative to the center line of the preformed die body. The utility model solves the problems that the carrying and the installation are laborious and time-consuming and the tire production efficiency is reduced because the weight of the pre-die in the prior art is larger.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production molds, in particular to a pre-mouth molding device. Background Art

[0002] In the manufacturing process of tires, the parts produced by extrusion are the key parts of the tire structure. Extrusion production is: the rubber material is extruded by the extruder, divided by the pre-die, and then extruded through the die plate in a specific shape and size. The extrusion production process directly determines the performance of the tire.

[0003] During the production process, due to the different production specifications of the same machine, the pre-mouth mold needs to be manually replaced when the production specifications change. However, the weight of the commonly used pre-mouth mold is usually around 30kg, which is very laborious and time-consuming for workers to carry and install, reducing production efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a pre-mouth molding device to solve the problem in the prior art that the pre-mouth molding is heavy, which makes transportation and installation laborious and time-consuming, and reduces the tire production efficiency.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a pre-mouth mold device is provided, comprising: a pre-mouth mold body, the pre-mouth mold body comprising a top surface and a bottom surface; a rubber flow channel, arranged in the pre-mouth mold body, for circulating the rubber; a weight-reducing portion, arranged on the top surface and / or the bottom surface, the weight-reducing portion is recessed relative to the top surface and / or the bottom surface toward the middle of the pre-mouth mold body, and the weight-reducing portion is a symmetrical structure relative to the center line of the pre-mouth mold body.

[0006] Furthermore, the weight-reducing portion comprises a first weight-reducing portion, the first weight-reducing portion is arranged on the top surface, there are at least two first weight-reducing portions, and the at least two first weight-reducing portions are symmetrically arranged relative to the center line of the pre-mouth-shaped body.

[0007] Furthermore, the weight-reducing portion comprises a second weight-reducing portion, and the second weight-reducing portion is arranged on the bottom surface. There are at least two second weight-reducing portions, and the at least two second weight-reducing portions are symmetrically arranged relative to the center line of the pre-mouth-shaped body.

[0008] Furthermore, the weight reduction portion includes: a first weight reduction groove, which is arranged on the top surface, the first weight reduction groove extends along the length direction of the pre-mouth type body, and the first weight reduction groove is recessed relative to the top surface; there are at least two first weight reduction grooves, and at least two first weight reduction grooves are symmetrically arranged relative to the center line of the pre-mouth type body.

[0009] Furthermore, the rubber flow channel includes a sidewall rubber extrusion flow channel; the distance between the bottom surface of the first weight-reducing groove and the top wall surface of the sidewall rubber extrusion flow channel is A, and the range of A is 10 mm ± 3 mm.

[0010] Furthermore, the weight reduction portion includes: a second weight reduction groove, which is arranged on the bottom surface and is recessed relative to the bottom surface; there are at least two second weight reduction grooves, and at least two second weight reduction grooves are symmetrically arranged relative to the center line of the pre-mouth body.

[0011] Furthermore, the rubber flow channel also includes a sidewall rubber extrusion flow channel; the second weight-reducing groove and the sidewall rubber extrusion flow channel are staggered in the vertical direction, and the second weight-reducing groove is close to the side end of the pre-mouth body relative to the sidewall rubber extrusion flow channel.

[0012] Furthermore, the minimum horizontal distance between the groove wall surface of the second weight-reducing groove and the flow channel wall surface of the sidewall rubber extrusion flow channel is B, and the range of B is 35 mm±5 mm.

[0013] Furthermore, the rubber flow channel also includes a wear-resistant rubber extrusion flow channel, at least part of which is arranged on the bottom surface; the weight reduction portion includes a second weight reduction portion, which is arranged on the bottom surface, and there are at least two second weight reduction portions, and at least two second weight reduction portions are symmetrically arranged on both sides of the wear-resistant rubber extrusion flow channel.

[0014] Furthermore, the top surface and the bottom surface are inclined surfaces respectively, and the weight-reducing portion comprises a weight-reducing groove, with the thickness direction of the pre-mouth-shaped body as the longitudinal direction, and the longitudinal section of the weight-reducing groove is a trapezoidal structure.

[0015] The technical scheme of the utility model is applied, and the pre-mouth mold device includes a pre-mouth mold body, a rubber flow channel and a weight reduction part. The pre-mouth mold body includes a top surface and a bottom surface; the rubber flow channel is arranged in the pre-mouth mold body for circulating rubber; the weight reduction part is arranged on the top surface and / or the bottom surface, and the weight reduction part is recessed relative to the top surface and / or the bottom surface toward the middle of the pre-mouth mold body, and the weight reduction part is a symmetrical structure relative to the center line of the pre-mouth mold body. In this way, the recessed weight reduction part is used to reduce the overall weight of the pre-mouth mold body, while not changing the internal structure of the pre-mouth mold body. In the process of the rubber flowing through the rubber flow channel, the rubber flow channel is guaranteed to have sufficient pressure bearing capacity. The structure is simple and easy to implement. Compared with the prior art, the weight reduction part is arranged on the pre-mouth mold, which does not affect the installation and assembly of the pre-mouth mold and the mold box, and at the same time ensures that the structural strength is sufficient and does not deform during use, and successfully reduces the weight of the pre-mouth mold. Compared with the pre-mouth mold without the weight reduction part, the quality is reduced by 30%. This lightweight pre-mouth shape greatly reduces the burden on workers to install and carry rubber between production batches, saving labor costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The schematic diagram of the structure of the pre-mouth forming device in the prior art is shown;

[0018] Figure 2 A front view of a pre-mouth device in the prior art is shown;

[0019] Figure 3 A rear view of a pre-mouth device in the prior art is shown;

[0020] Figure 4 A schematic structural diagram of an embodiment of a pre-mouth molding device according to the utility model is shown;

[0021] Figure 5 Shows a front view of a pre-mouth device according to the utility model;

[0022] Figure 6 A rear view of the pre-mouth device according to the utility model is shown;

[0023] Figure 7 A partial schematic diagram of a pre-mouth device according to the utility model is shown;

[0024] Figure 8 Shown according to Figure 7 AA section view.

[0025] The above drawings include the following reference numerals:

[0026] 1. Pre-mouth body; 10. Top surface; 11. Bottom surface; 12. First side surface; 13. Second side surface; 2. Rubber flow channel; 3. Weight reduction portion; 30. First weight reduction portion; 31. Second weight reduction portion; 32. First weight reduction groove; 320. Groove bottom surface; 20. Sidewall rubber extrusion flow channel; 201. Flow channel top wall surface; 33. Second weight reduction groove; 330. Groove wall surface; 202. Flow channel wall surface; 21. Wear-resistant rubber extrusion flow channel; 4. Flow channel outlet; 5. Flow channel inlet; 6. Positioning pin groove. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Please refer to Figures 4 to 8 The utility model provides a pre-mouth type device, comprising: a pre-mouth type body 1, the pre-mouth type body 1 comprising a top surface 10 and a bottom surface 11; a rubber flow channel 2, arranged in the pre-mouth type body 1, for circulating rubber; a weight reduction portion 3, arranged on the top surface 10 and / or the bottom surface 11, the weight reduction portion 3 is recessed relative to the top surface 10 and / or the bottom surface 11 toward the middle of the pre-mouth type body 1, and the weight reduction portion 3 is a symmetrical structure relative to the center line of the pre-mouth type body 1.

[0029] The pre-mouth type device provided by the utility model comprises a pre-mouth type body 1, a rubber flow channel 2 and a weight reduction portion 3. The pre-mouth type body 1 comprises a top surface 10 and a bottom surface 11. The rubber flow channel 2 is arranged in the pre-mouth type body 1 for circulating rubber. The weight reduction portion 3 is arranged on the top surface 10 and / or the bottom surface 11. The weight reduction portion 3 is recessed relative to the top surface 10 and / or the bottom surface 11 toward the middle of the pre-mouth type body 1. The weight reduction portion 3 is a symmetrical structure relative to the center line of the pre-mouth type body 1. This arrangement reduces the overall weight of the pre-mouth type body 1 by utilizing the recessed weight reduction portion 3 without changing the internal structure of the pre-mouth type body 1. In the process of the rubber flowing through the rubber flow channel 2, it is ensured that the rubber flow channel 2 has sufficient pressure bearing capacity. The structure is simple and easy to implement. Figures 1 to 3 Compared with the prior art shown in the figure, the weight-reducing part is set on the pre-mouth mold, which does not affect the installation and assembly of the pre-mouth mold and the mouth box, and at the same time ensures that the structural strength is sufficient and does not deform during use, successfully reducing the weight of the pre-mouth mold. Compared with the pre-mouth mold without the weight-reducing part, the weight is reduced by 30%. This lightweight pre-mouth mold greatly reduces the burden of workers installing and carrying rubber materials between production batches, saves labor costs, and improves production efficiency.

[0030] In one embodiment provided by the present invention, the weight reduction portion 3 includes a first weight reduction portion 30, which is arranged on the top surface 10. There are at least two first weight reduction portions 30, and at least two first weight reduction portions 30 are symmetrically arranged relative to the center line of the pre-mouth-shaped body 1. This arrangement balances the mass of the pre-mouth-shaped body 1 and avoids the problem of uneven force during transportation.

[0031] Furthermore, the weight-reducing part 3 includes a second weight-reducing part 31, which is arranged on the bottom surface 11. There are at least two second weight-reducing parts 31, and the at least two second weight-reducing parts 31 are symmetrically arranged relative to the center line of the pre-mouth-shaped body 1. The symmetrical arrangement makes the mass of the pre-mouth-shaped body 1 balanced, and cooperates with the first weight-reducing part 30 to avoid the problem of the pre-mouth-shaped device being easily tipped over during transportation.

[0032] In a specific implementation, the weight-reducing portion 3 includes: a first weight-reducing groove 32, which is arranged on the top surface 10, and the first weight-reducing groove 32 extends along the length direction of the pre-mouth-shaped body 1, and the first weight-reducing groove 32 is recessed relative to the top surface 10; there are at least two first weight-reducing grooves 32, and at least two first weight-reducing grooves 32 are symmetrically arranged relative to the center line of the pre-mouth-shaped body 1. Preferably, there are two first weight-reducing grooves 32, and the two first weight-reducing grooves 32 are symmetrically arranged relative to the center line of the pre-mouth-shaped body 1. By arranging the first weight-reducing grooves 32, the weight of the pre-mouth-shaped body 1 is reduced while being convenient for implementation. Preferably, the first weight-reducing portion 30 includes the first weight-reducing groove 32.

[0033] In order to ensure that the pre-mouth body 1 has sufficient structural strength during the rubber extrusion process, the rubber flow channel 2 includes a sidewall rubber extrusion flow channel 20; the distance between the groove bottom surface 320 of the first weight-reducing groove 32 and the flow channel top wall surface 201 of the sidewall rubber extrusion flow channel 20 is A, and the range of A is 10mm±3mm. Within this range, the sidewall rubber extrusion flow channel 20 has sufficient strength to withstand the high pressure generated on the inner wall surface of the flow channel during the rubber extrusion process.

[0034] Further, the weight-reducing portion 3 includes: a second weight-reducing groove 33, which is arranged on the bottom surface 11, and the second weight-reducing groove 33 is recessed relative to the bottom surface 11; there are at least two second weight-reducing grooves 33, and at least two second weight-reducing grooves 33 are symmetrically arranged relative to the center line of the pre-mouth-shaped body 1. Preferably, there are two second weight-reducing grooves 33, and the two second weight-reducing grooves 33 are symmetrically arranged relative to the center line of the pre-mouth-shaped body 1, so that it is convenient to implement and ensure the mass balance of the pre-mouth-shaped body 1. Compared with setting a plurality of second weight-reducing grooves 33, directly setting two second weight-reducing grooves 33 is more convenient and quick to process, and the weight-reducing effect can be optimized. Preferably, the second weight-reducing portion 31 includes a second weight-reducing groove 33.

[0035] The rubber flow channel 2 also includes a sidewall rubber extrusion flow channel 20; the second weight-reducing groove 33 and the sidewall rubber extrusion flow channel 20 are staggered in the vertical direction, and the second weight-reducing groove 33 is close to the side end of the pre-mouth mold body 1 relative to the sidewall rubber extrusion flow channel 20. Since part of the wear-resistant rubber extrusion flow channel 21 is also provided on the bottom surface 11, the second weight-reducing groove 33 is close to the side end of the pre-mouth mold body 1 relative to the sidewall rubber extrusion flow channel 20, so that interference between the second weight-reducing groove 33 and the wear-resistant rubber extrusion flow channel 21 can be avoided.

[0036] The minimum horizontal distance between the groove wall surface 330 of the second weight-reducing groove 33 and the flow channel wall surface 202 of the sidewall rubber extrusion flow channel 20 is B, and the range of B is 35 mm ± 5 mm. This arrangement ensures that there is sufficient thickness between the second weight-reducing groove 33 and the sidewall rubber extrusion flow channel 20, ensuring that the sidewall rubber extrusion flow channel 20 has sufficient strength to withstand the extrusion force of the rubber during the rubber extrusion process.

[0037] In another embodiment provided by the utility model, the rubber flow channel 2 further includes a wear-resistant rubber extrusion flow channel 21, at least part of which is arranged on the bottom surface 11; the weight reduction portion 3 includes a second weight reduction portion 31, which is arranged on the bottom surface 11, and there are at least two second weight reduction portions 31, which are symmetrically arranged on both sides of the wear-resistant rubber extrusion flow channel 21. Preferably, there are two second weight reduction portions 31, which are symmetrically arranged.

[0038] The top surface 10 and the bottom surface 11 are inclined surfaces respectively. The weight-reducing portion 3 comprises a weight-reducing groove. The thickness direction of the pre-mouth-shaped body 1 is taken as the longitudinal direction. The longitudinal section of the weight-reducing groove is a trapezoidal structure.

[0039] In the present application, the top surface 10 and the bottom surface 11 are connected by the first side surface 12 and the second side surface 13 respectively, the flow channel outlet 4 of the rubber flow channel 2 is arranged on the first side surface 12, and the flow channel inlet 5 is arranged on the second side surface 13. Specifically, the pre-mouth mold body 1 is a symmetrical structure, and the sidewall rubber extrusion flow channel 20 and the wear-resistant rubber extrusion flow channel 21 are respectively two, and the two sidewall rubber extrusion flow channels 20 and the two wear-resistant rubber extrusion flow channels 21 are respectively symmetrically arranged relative to the center line of the pre-mouth mold body 1, and the second side 13 is also provided with a positioning pin groove 6, the pre-mouth mold body 1 is installed in the mouth box through the positioning pin groove 6, the top surface 10 and the bottom surface 11 are tightly fitted with the inner wall surface of the mouth box, the sidewall rubber flows out of the extruder through the flow channel inlet 5 into the two sidewall rubber extrusion flow channels 20, and flows out through the flow channel outlet 4 and then enters the mouth plate, similarly, the wear-resistant rubber flows out of the extruder through the flow channel inlet 5 into the pre-mouth internal flow channel (wear-resistant rubber extrusion flow channel 21), and flows out from the flow channel outlet 4 and then enters the mouth plate.

[0040] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0041] The pre-mouth type device provided by the utility model comprises a pre-mouth type body 1, a rubber flow channel 2 and a weight reduction portion 3. The pre-mouth type body 1 comprises a top surface 10 and a bottom surface 11. The rubber flow channel 2 is arranged in the pre-mouth type body 1 for circulating rubber. The weight reduction portion 3 is arranged on the top surface 10 and / or the bottom surface 11. The weight reduction portion 3 is recessed relative to the top surface 10 and / or the bottom surface 11 toward the middle of the pre-mouth type body 1. The weight reduction portion 3 is a symmetrical structure relative to the center line of the pre-mouth type body 1. This arrangement reduces the overall weight of the pre-mouth type body 1 by utilizing the recessed weight reduction portion 3 without changing the internal structure of the pre-mouth type body 1. In the process of the rubber flowing through the rubber flow channel 2, it is ensured that the rubber flow channel 2 has sufficient pressure bearing capacity. The structure is simple and easy to implement. Figures 1 to 3 Compared with the prior art shown in the figure, the weight-reducing part is set on the pre-mouth mold, which does not affect the installation and assembly of the pre-mouth mold and the mouth box, and at the same time ensures that the structural strength is sufficient and does not deform during use, successfully reducing the weight of the pre-mouth mold. Compared with the pre-mouth mold without the weight-reducing part, the weight is reduced by 30%. This lightweight pre-mouth mold greatly reduces the burden of workers installing and carrying rubber materials between production batches, saves labor costs, and improves production efficiency.

[0042] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pre-mouth device, characterized in that: include: A pre-mouth-shaped body (1), the pre-mouth-shaped body (1) comprising a top surface (10) and a bottom surface (11); A rubber material flow channel (2) is arranged in the pre-mouth body (1) and is used for circulating the rubber material; A weight-reducing portion (3) is arranged on the top surface (10) and / or the bottom surface (11); the weight-reducing portion (3) is recessed relative to the top surface (10) and / or the bottom surface (11) toward the middle of the pre-mouth-shaped body (1); and the weight-reducing portion (3) is a symmetrical structure relative to the center line of the pre-mouth-shaped body (1).

2. The pre-mouth device according to claim 1, characterized in that: The weight-reducing portion (3) comprises a first weight-reducing portion (30), The first weight-reducing portion (30) is arranged on the top surface (10), there are at least two first weight-reducing portions (30), and the at least two first weight-reducing portions (30) are symmetrically arranged relative to the center line of the pre-mouth-shaped body (1).

3. The pre-mouth device according to claim 1, characterized in that: The weight-reducing portion (3) comprises a second weight-reducing portion (31), and the second weight-reducing portion (31) is arranged on the bottom surface (11). There are at least two second weight-reducing portions (31), and at least two second weight-reducing portions (31) are symmetrically arranged relative to the center line of the pre-mouth-shaped body (1).

4. The pre-mouth device according to claim 1, characterized in that: The weight reduction part (3) comprises: A first weight-reducing groove (32) is arranged on the top surface (10), the first weight-reducing groove (32) extends along the length direction of the pre-mouth-shaped body (1), and the first weight-reducing groove (32) is recessed relative to the top surface (10); There are at least two of the first weight-reducing grooves (32), and the at least two first weight-reducing grooves (32) are symmetrically arranged relative to the center line of the pre-mouth-shaped body (1).

5. The pre-mouth device according to claim 4, characterized in that: The rubber flow channel (2) comprises a sidewall rubber extrusion flow channel (20); The distance between the groove bottom surface (320) of the first weight-reducing groove (32) and the flow channel top wall surface (201) of the sidewall rubber extrusion flow channel (20) is A, and the range of A is 10 mm ± 3 mm.

6. The pre-mouth device according to claim 1, characterized in that: The weight reduction part (3) comprises: A second weight-reducing groove (33) is arranged on the bottom surface (11), and the second weight-reducing groove (33) is recessed relative to the bottom surface (11); There are at least two second weight-reducing grooves (33), and the at least two second weight-reducing grooves (33) are symmetrically arranged relative to the center line of the pre-mouth body (1).

7. The pre-mouth device according to claim 6, characterized in that The rubber flow channel (2) also includes a sidewall rubber extrusion flow channel (20); The second weight-reducing groove (33) and the sidewall rubber extrusion flow channel (20) are arranged alternately in the vertical direction, and the second weight-reducing groove (33) is close to the side end of the pre-mouth mold body (1) relative to the sidewall rubber extrusion flow channel (20).

8. The pre-mouth device according to claim 7, characterized in that The minimum horizontal distance between the groove wall surface (330) of the second weight-reducing groove (33) and the flow channel wall surface (202) of the sidewall rubber extrusion flow channel (20) is B, and the range of B is 35 mm±5 mm.

9. The pre-mouth device according to claim 1, characterized in that: The rubber material flow channel (2) further comprises a wear-resistant rubber extrusion flow channel (21), and at least a portion of the wear-resistant rubber extrusion flow channel (21) is arranged on the bottom surface (11); The weight-reducing portion (3) comprises a second weight-reducing portion (31), the second weight-reducing portion (31) being arranged on the bottom surface (11), there being at least two second weight-reducing portions (31), and at least two second weight-reducing portions (31) being symmetrically arranged on both sides of the wear-resistant rubber extrusion outlet channel (21).

10. The pre-mouth device according to claim 1, characterized in that: The top surface (10) and the bottom surface (11) are inclined surfaces respectively, and the weight-reducing portion (3) comprises a weight-reducing groove, with the thickness direction of the pre-mouth-shaped body (1) as the longitudinal direction, and the longitudinal section of the weight-reducing groove is a trapezoidal structure.

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