Finishing die type structure for tire rubber production line and tire rubber production line

Abstract

The utility model relates to a final opening type structure for a tire rubber production line and the tire rubber production line, and the final opening type structure comprises a supporting plate and an opening type block which is detachably mounted in the approximate middle of the supporting plate, so that an opening type hole for a rubber material to pass through to form a strip-shaped rubber material is formed in the final opening type structure; the tire rubber production line comprises the final opening type structure for the tire rubber production line.

Description

Technical Field

[0001] This application belongs to the field of tire manufacturing machinery, and particularly relates to a terminal orifice structure for a tire compound production line and a tire compound production line. Background Art

[0002] As one of the six major processes in tire production, the extrusion process is a very important process in tire manufacturing. The terminal orifice structure is installed at the end of the tire compound production line, at the head of the extrusion production line, and at the discharge port of the head. Whether the size of the terminal orifice structure is standard determines whether the width and thickness of the tread and sidewall meet the standards, which has a significant impact on the quality of tire production.

[0003] The existing terminal orifice structure is an integral metal plate 1'. As shown in Figure 1 The orifice hole 2' is a through hole opened in the metal plate for the compound to pass through (continuous compound passes through the orifice hole 2' from the back shown in Figure 1 to the front shown in Figure 1 to form a strip of compound). When manufacturing the terminal orifice structure, a space needs to be cut out in the metal plate 1' by wire cutting, and then the orifice hole 2' is manually polished. Manual polishing determines that the orifice hole 2' will not be completely standard, and the shapes of each terminal orifice structure will not be the same, and there is no good solution yet. In addition, since the existing terminal orifice structure is integral, it weighs about 10 Kg, which is very troublesome for processing and handling, and there is also a safety hazard of being injured. Utility Model Content

[0004] In view of some deficiencies in the related art, this application provides a terminal orifice structure for a tire compound production line and a tire compound production line.

[0005] The terminal orifice structure for a tire compound production line provided in the first aspect of this application includes: a support plate, and an orifice block detachably installed in the approximate middle of the support plate to form an orifice hole in the terminal orifice structure for the compound to pass through to form a strip of compound.

[0006] In one embodiment, an extended curved orifice is formed on the orifice block, and the orifice hole is formed between the curved orifice and the support plate.

[0007] In one embodiment, the volume ratio of the orifice block in the terminal orifice structure is less than 30%.

[0008] In one embodiment, the orifice block is made of metal, and a heater for heating it is provided thereon; no heater is provided on the support plate 1.

[0009] In one embodiment, the orifice block is formed by 3D printing technology.

[0010] In one embodiment, the curved orifice of the orifice block is formed by 3D printing technology.

[0011] In one embodiment, a groove is formed at approximately the middle of the front surface of the support plate, and the orifice block can be received in the groove; the orifice formed by the curved orifice of the orifice block and the groove wall forms the orifice hole.

[0012] In one embodiment, the support plate and the orifice block are configured to be substantially flush on the front surface.

[0013] In one embodiment, the thickness of the orifice block, the thickness of the support plate, and the depth of the groove are substantially equal; a protrusion protruding from the support plate is provided on the back surface of the support plate, and the protrusion and the groove together form a space for receiving the orifice block; the orifice block can be installed on the protrusion through a fastener.

[0014] In one embodiment, the support plate includes an upper plate and a lower plate, which are connected by a fastener; wherein, the groove and the protrusion are located at the position where the upper plate is close to the lower plate, and a space for receiving the orifice block is formed between the groove and the lower plate, and the orifice hole is formed between the orifice block and the lower plate.

[0015] A tire compound production line provided in the second aspect of the present application includes the final orifice structure for a tire compound production line described in any of the foregoing embodiments, and the final orifice structure is installed at the head of the production line and is located at the discharge port of the head.

[0016] When the final orifice structure provided in at least one embodiment of the present application is in use, the compound is extruded from the back surface to the front surface, and the support plate and the orifice block jointly block the excess compound, so that the compound is extruded through the orifice hole on the orifice block to produce qualified compound. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments and descriptions thereof are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of a final orifice structure in the prior art;

[0019] Figure 2 is an assembled schematic diagram of a final orifice structure according to an embodiment of the present application;

[0020] Figure 3 is an exploded schematic diagram of a final orifice structure according to an embodiment of the present application;

[0021] Figure 4 is a rear perspective view of a final orifice structure according to an embodiment of the present application;

[0022] Figure 5 Explosion schematic diagram of the end orifice type structure of another embodiment of the present application;

[0023] In the figure: 1 support plate, 11 upper plate, 12 lower plate, 2 orifice block, 3 curved orifice, 4 orifice hole, 5 groove, 6 protrusion. Specific embodiments

[0024] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 a limitation of the present application.

[0026] The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0027] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] As Figures 2 - 5 shown, the first aspect of the present application provides an end orifice type structure for a tire compound production line, which can be installed on the orifice box of the head of the tire compound production line. Among them, the direction facing the head is the back, and the direction facing the operator is the front opposite to the back.

[0029] The end-mouth type structure includes a support plate 1 and a mouth-shaped block 2 detachably mounted on the support plate 1. A curved mouth 3 extending in the left-right direction is provided on the mouth-shaped block 2, and a mouth hole 4 for the extruded rubber compound to pass through is formed between the curved mouth 3 and the support plate 1, which is consistent with the extending direction of the curved mouth 3. The mouth-shaped block 2 and the support plate 1 jointly block the excess rubber compound during the extrusion of the rubber compound, leaving only the extrusion space at the mouth hole 4, so as to play a role in extruding the rubber compound into a fixed shape. In addition, the specific bending structure of the curved mouth 3 of the mouth-shaped block is designed and arranged according to the requirements of the rubber compound to be extruded; the length of the mouth hole 4 is also set accordingly according to the actual width of the rubber compound required.

[0030] The volume ratio of the mouth-shaped block 2 in the entire end-mouth type structure is less than 30%, such as 30%, 28%, 25%, 22%, 20%, etc.; so that when the mouth-shaped block 2 is worn and a new mouth-shaped block 2 needs to be replaced, under the condition of meeting the shape and width of the rubber compound, the mouth-shaped block 2 is small enough and light enough, so as to minimize the consumables as much as possible.

[0031] The mouth-shaped block 2 is made of metal materials, such as stainless steel, iron, copper, etc., and a heater (not shown in the figure) for heating it is provided thereon, but no heater is provided on the support plate 1; thus, only the small-volume mouth-shaped block 2 needs to be heated to meet the heating requirements of the rubber compound; compared with the prior art ([ Figure 1 ) in which the entire metal plate must be heated, this embodiment not only requires less heat, but also has a fast heating speed and reduces waste.

[0032] The mouth-shaped block 2, especially its curved mouth 3, is formed by 3D printing technology, so as to ensure the accuracy and consistency of its shape. For example, when the current curved mouth 3 is worn and the rubber compound of the same shape still needs to be produced, then only the curved mouth 3 of the same shape printed by 3D printing needs to be replaced; compared with manual grinding in the prior art, the accuracy is higher.

[0033] More specifically, as Figure 3 shown, a groove 5 is formed at approximately the middle part of the front surface of the support plate 1, and the mouth-shaped block 2 can be accommodated in the groove 5. The mouth hole 4 is formed between the lower surface of the mouth-shaped block 2 and the groove wall. In addition, the support plate 1 and the mouth-shaped block 2 are configured to be substantially flush on the front surface (refer to Figure 2 ), so as to facilitate the shaping of the rubber compound.

[0034] In some embodiments, as Figures 2 - 4As shown, in order to maintain the strength of the end-mouth structure, the thickness of the mouth-shaped block 2 is approximately equal to that of the support plate 1; a protrusion 6 protruding from the support plate 1 is provided on the back surface of the support plate 1, and the protrusion 6 partially shields the groove 5 to form a space for accommodating the mouth-shaped block 2; the mouth-shaped block 2 can be fixed to the protrusion 6 by fasteners (such as bolts, etc.) to install the mouth-shaped block 2 (reference can be made to Figure 5 ). That is, in this embodiment, the thickness of the mouth-shaped block 2, the thickness of the support plate 1, and the depth of the groove 5 are equal, and an additional protrusion 6 is added to install the mouth-shaped block 2.

[0035] In some other embodiments, as Figure 5 shown, the support plate 1 includes an upper plate 11 and a lower plate 12, and the two are fixedly connected by fasteners (such as countersunk bolts). Among them, the groove 5 and the protrusion 6 are located at the position where the upper plate 11 is close to the lower plate 12, and a space for accommodating the mouth-shaped block 2 is formed between the groove 5 and the lower plate 12. Among them, a mouth-shaped hole 4 is formed between the mouth-shaped block 2 and the lower plate 12, that is, the top surface of the lower plate 12 serves as the lower surface of the mouth-shaped hole 4.

[0036] The rubber compound extruded from the tire rubber compound production line passes through the mouth-shaped hole 4 from the back of the end-mouth structure to the front of the end-mouth structure, so as to output a strip-shaped rubber compound.

[0037] The second aspect of the present application provides a tire rubber compound production line, which includes the end-mouth structure for the tire rubber compound production line described in any one of the previous embodiments, and the end-mouth structure is installed at the head of the production line and is located at the discharge port of the head.

[0038] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0039] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the specific embodiments of the present application can still be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solutions of the present application, they should all be covered within the scope of the technical solutions claimed in the present application.

Claims

1. A terminal structure for a tire rubber production line, characterized in that: include: A support plate and a die block detachably mounted at a substantially middle portion of the support plate are provided to form a die hole in the final die structure for the rubber material to pass through to form a strip-shaped rubber material.

2. The end-mouth structure according to claim 1, characterized in that: An extended curved die is formed on the die block, and the die hole is formed between the curved die and the support plate.

3. The end-mouth structure according to claim 1, characterized in that: The die block accounts for less than 30% of the volume of the final die structure.

4. The end-mouth structure according to claim 1, characterized in that: The die block is made of metal and is provided with a heater for heating it; the support plate (1) is not provided with a heater.

5. The end-mouth structure according to claim 2, characterized in that: The mouth block is formed by 3D printing technology; the curved mouth shape of the mouth block is formed by 3D printing technology.

6. The end-mouth structure according to claim 2, characterized in that: The support plate is formed with a groove approximately in the middle of the front side, and the die block can be accommodated in the groove; the die hole is formed between the curved die shape of the die block and the wall of the groove.

7. The end-mouth structure according to claim 6, characterized in that: The support plate and the die block are configured to be substantially flush on the front surface.

8. The end-mouth structure according to claim 6 or 7, characterized in that: The thickness of the die block, the thickness of the support plate and the depth of the groove are substantially equal; a protrusion protruding from the support plate is provided on the back side of the support plate, and the protrusion and the groove together form a space for accommodating the die block; the die block can be mounted on the protrusion by fasteners.

9. The end-mouth structure according to claim 8, characterized in that: The support plate includes an upper plate and a lower plate, which are connected by fasteners; wherein the groove and the protrusion are located on the upper plate near the lower plate, and a space for accommodating the mouth block is formed between the groove and the lower plate, wherein the mouth hole is formed between the mouth block and the lower plate.

10. A tire rubber production line, characterized in that: It comprises the final-mouth structure for a tire rubber production line as described in any one of claims 1 to 9, wherein the final-mouth structure is installed on the head of the production line and is located at the discharge port of the head.

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