Die with replaceable patterned ribs

Abstract

The utility model discloses a mould with replaceable pattern ribs, which belongs to the technical field of tire moulds and comprises a cavity component, and the inner cavity surface of the cavity component is connected with the pattern ribs through connecting pieces. The face, making contact with the inner side cavity face, of the pattern rib is a matching face, and the matching face of the pattern rib is attached to the inner side cavity face of the cavity component. According to the utility model, the interchangeability of pattern rib patterns can be ensured, and the pattern rib replacement requirements of tires with different patterns vulcanized by the same mold are met.

Description

Technical Field

[0001] This utility model relates to the field of tire mold technology, specifically to a mold with replaceable ribs. Background Technology

[0002] The tread grooves are three-dimensional curved surface features on tire molds that are formed into tire tread grooves during the tire vulcanization process.

[0003] Currently, the ribs and mold body of the two-part mold are often processed into an integrated structure, and the ribs and pattern blocks of the movable mold are also often processed into an integrated structure.

[0004] If tire tread patterns need to be changed, there are currently two approaches: First, manufacture a new mold / tread block; second, modify the existing mold / tread block's ribs through welding, milling, etc., to create new ribs. The first approach is more expensive and time-consuming; the second approach is affected by the original rib shape, making welding and milling more difficult, increasing the likelihood of anomalies and uncontrollable deformation. Furthermore, welding can easily result in color differences on the mold surface, leading to color variations on the vulcanized tire surface and affecting its appearance. The larger the tire size, the higher the cost and the more difficult the tread pattern modification.

[0005] Despite the existence of existing technologies that use detachable ribs to connect to tread blocks or mold bodies, such as CN205466924U - Rib-embedded tire mold and its tread blocks, CN217597879U - A tire mold, CN217621669U - A tire mold with replaceable tread steel sheet structure, etc.

[0006] However, the current structures all involve first machining the embedding grooves on the patterned blocks or mold body, and then setting the corresponding embedding blocks on the ribs. The connection between the two is achieved by embedding the embedding blocks into the embedding grooves. Although the existing technology is convenient for changing the ribs, it cannot meet the requirements when the rib style needs to be changed. Because the embedding grooves pre-machined on the patterned blocks or mold body limit the style of the ribs, if the direction of the new ribs is inconsistent with the direction of the original embedding grooves, a groove will appear at this point, which cannot meet the usage requirements.

[0007] To address the aforementioned problems, this utility model designs and manufactures a mold with replaceable ribs to overcome the above-mentioned defects. Utility Model Content

[0008] To address the problems existing in the prior art, this utility model provides a mold with replaceable ribs, which can ensure the interchangeability of rib patterns and meet the rib replacement needs of vulcanizing tires with different patterns using the same mold.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a mold with replaceable flower ribs, comprising a cavity component, wherein the inner cavity surface of the cavity component is connected to the flower ribs via a connector;

[0010] The surface of the rib that contacts the inner cavity surface is designated as the mating surface, and the mating surface of the rib fits against the inner cavity surface of the cavity component.

[0011] Preferably, the cavity component is provided with a plurality of through connecting holes, and the mating surface of the rib is provided with a plurality of threaded holes;

[0012] The ribs are connected to the inner cavity surface of the cavity component by screws.

[0013] Preferably, the rib is provided with a plurality of through connecting holes, and the inner cavity surface of the cavity component is provided with a plurality of threaded holes;

[0014] The ribs are connected to the inner cavity surface of the cavity component by screws.

[0015] Preferably, the end of the connecting hole away from the mating surface is provided with a countersunk hole, and a sealing cap is interference-fitted in the countersunk hole. The side of the sealing cap away from the mating surface smoothly transitions to the end face of the rib.

[0016] Preferably, the rib is connected to the cavity component by at least two screws.

[0017] Preferably, the cavity component is a patterned block or a mold body.

[0018] Preferably, a positioning pin is provided between the mating surface of the rib and the inner cavity surface of the cavity component, and positioning holes are provided on both the mating surface and the inner cavity surface of the cavity component, with the positioning pin inserted into the positioning holes on the mating surface and the inner cavity surface.

[0019] Preferably, a positioning block is provided on the mating surface of the rib or on the inner cavity surface of the corresponding position, and a positioning groove is provided on the mating surface of the other rib or on the inner cavity surface of the corresponding position, and the positioning block can cooperate with the positioning groove.

[0020] Preferably, the end face of the rib near the inner cavity surface is provided with a hollow groove, and there is a gap between the hollow groove and the side wall of the rib;

[0021] The periphery of the hollow groove is set as a rib boundary, and the mating surface is set as the end face of the rib boundary.

[0022] Preferably, the boundaries of the floral pattern are continuous.

[0023] The advantages of this utility model are:

[0024] 1. The cavity components can be machined into contour surfaces according to the normal process flow, eliminating the need for processing the tread pattern. By separately machining the mating surfaces of the ribs into curved surfaces that mate with the inner cavity surfaces, and then assembling them, not only is the processing flow shortened, but it also has strong interchangeability. This can meet the rib replacement needs of vulcanizing tires with different tread patterns using the same mold, and flexibly respond to the tire market's demand for different tread patterns.

[0025] 2. This utility model reduces the processing difficulty by setting a hollow groove on the end face of the rib near the inner cavity surface, and only needs to ensure the fitting accuracy of the rib boundary end face, thus improving the processing efficiency. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the connection between the rib and the cavity component of this utility model, which is a two-part mold body.

[0027] Figure 2 This is a cross-sectional view of the screw of this utility model connecting to the rib from the outside of the cavity component;

[0028] Figure 3 This is a cross-sectional view of the screw connecting the decorative rib from the inside of the cavity component according to this utility model;

[0029] Figure 4 This is a cross-sectional view showing the positioning of the rib and the cavity component of this utility model via positioning pins and positioning blocks;

[0030] Figure 5 This is a partial front perspective view of the connection between several ribs and cavity components of this utility model;

[0031] Figure 6 This is a cross-sectional view of a portion of the decorative ribs on the cavity component of this utility model;

[0032] Figure 7 This is a cross-sectional view of the decorative ribs with hollow cutter grooves on the two halves of the mold body of this utility model;

[0033] Figure 8 This is a schematic diagram of the decorative rib with hollow knife groove of this utility model.

[0034] In the diagram: 1-rib, 2-mold body, 3-patterned block, 4-screw, 5-closed cover, 6-positioning block, 7-positioning pin, 11-empty groove, 12-rib boundary. Detailed Implementation

[0035] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0036] like Figures 1 to 5As shown, a mold with replaceable ribs includes a cavity component. The inner cavity surface of the cavity component is connected to the rib 1 via a connector. Here, the cavity component is either the pattern block 3 of a movable mold or the mold body 2 of a two-part mold. The connector is preferably a screw 4. The rib 1 is connected to the cavity component by at least two screws 4. When dealing with a larger rib 1, multiple screws 4 can be selected for connection to ensure the connection strength between the two.

[0037] Specifically, the surface of the rib 1 that contacts the inner cavity surface is designated as the mating surface. The mating surface of the rib 1 fits into the inner cavity surface of the cavity component. This structure allows the cavity component to be directly processed into the contour surface according to the normal process flow, eliminating the need for processing the pattern part. By processing the mating surface of the rib 1 separately into a curved surface that fits into the inner cavity surface, and then assembling it, the processing flow is greatly shortened.

[0038] Moreover, unlike the existing structure of the inner cavity surface processing and embedding groove, the mating surface of the rib 1 of this utility model is directly attached to the inner cavity surface of the cavity component, which makes the rib 1 highly interchangeable. It can meet the needs of changing the rib 1 style for vulcanizing tires with different patterns in the same mold, and flexibly respond to the needs of the tire market for different patterns.

[0039] The connection between the rib 1 and the cavity component of this utility model can be varied. Specifically, the cavity component can have several through-holes, and the mating surface of the rib 1 can have several threaded holes. The rib 1 is then connected to the inner cavity surface of the cavity component by screws 4. Alternatively, the rib 1 can have several through-holes, and the inner cavity surface of the cavity component can have several threaded holes. The rib 1 is then connected to the inner cavity surface of the cavity component by screws 4. In order to avoid the connection holes affecting the rubber vulcanization, the end of the connection hole away from the mating surface is preferably provided with a countersunk hole. A sealing cap 5 is interference-fitted in the countersunk hole. The sealing cap 5 seals the connection hole on the end face of the rib 1. The side of the sealing cap 5 away from the mating surface smoothly transitions to the end face of the rib 1 to avoid affecting the vulcanization quality.

[0040] To improve the accuracy of the tread pattern position in vulcanized tires, a locating pin 7 is preferably provided between the mating surface of the tread pattern 1 and the inner cavity surface of the cavity component. Specifically, locating holes are provided on both the mating surface and the inner cavity surface of the cavity component, and the locating pin 7 is inserted into the locating holes on the mating surface and the inner cavity surface. Alternatively, a locating block 6 is provided on the mating surface of the tread pattern 1 or the corresponding inner cavity surface, and a locating groove is provided on the mating surface of another tread pattern 1 or the corresponding inner cavity surface. The locating block 6 and the locating groove are used to ensure the fitting accuracy between the tread pattern 1 and the cavity component.

[0041] like Figures 6 to 8As shown, a hollow groove 11 is provided on the end face of the rib 1 near the inner cavity surface. A gap exists between the hollow groove 11 and the side wall of the rib 1. Specifically, the periphery of the hollow groove 11 is defined as the rib boundary 12, which is continuous. The mating surface is the end face of the rib boundary 12. This invention reduces the processing difficulty by providing a hollow groove 11 on the rib 1, requiring only ensuring the mating accuracy of the end face of the rib boundary 12, thus improving processing efficiency.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A mold with replaceable filigree, characterized in that, The mold cavity member is connected with the vein (1) through the connecting member on the inner cavity surface of the mold cavity member; The surface of the vein (1) in contact with the inner cavity surface is provided as a matching surface, and the matching surface of the vein (1) is in close contact with the inner cavity surface of the mold cavity member.

2. The mold of claim 1, wherein, The mold cavity member is provided with a plurality of connecting holes penetrating through the mold cavity member, and the matching surface of the vein (1) is provided with a plurality of threaded holes; The vein (1) is connected to the inner cavity surface of the mold cavity member through the screw (4).

3. The mold of claim 1, wherein, The vein (1) is provided with a plurality of connecting holes penetrating through the vein (1), and the inner cavity surface of the mold cavity member is provided with a plurality of threaded holes; The vein (1) is connected to the inner cavity surface of the mold cavity member through the screw (4).

4. The mold of claim 3, wherein, The connecting hole is provided with a counterbore at the end away from the matching surface, and the counterbore is provided with an interference fit with a closure cover (5), and the side of the closure cover (5) away from the matching surface is smoothly transitioned with the end surface of the vein (1).

5. The mold of claim 1, wherein, The vein is connected to the mold cavity member through at least two screws.

6. The mold of claim 1, wherein, The mold cavity member is provided as a pattern block (3) or a mold body (2).

7. The mold of claim 1, wherein, The matching surface of the vein (1) and the inner cavity surface of the mold cavity member are provided with a positioning pin (7), and the matching surface and the inner cavity surface of the mold cavity member are provided with a positioning hole, and the positioning pin (7) is inserted into the positioning hole of the matching surface and the inner cavity surface.

8. The mold of claim 1, wherein, The matching surface of the vein (1) or the corresponding inner cavity surface is provided with a positioning block (6), and the matching surface of the other vein (1) or the corresponding inner cavity surface is provided with a positioning groove, and the positioning block (6) can be matched with the positioning groove.

9. The mold of claim 1, wherein, The end surface of the vein (1) close to the inner cavity surface is provided with a hollow groove (11), and the hollow groove (11) is provided with a spacing between the side wall of the vein (1); The periphery of the hollow groove (11) is provided as a vein boundary (12), and the matching surface is provided as an end surface of the vein boundary (12).

10. The mold of claim 9, wherein, The vein boundary (12) is continuous.

Images