A tire tread pattern molding device

Abstract

The present disclosure relates to the technical field of tire processing, and one embodiment of the present disclosure provides a tire tread pattern forming device, which comprises a fixed plate and a movable plate, the movable plate is connected to the bottom of the fixed plate through vertical linear driving, a stand is vertically fixed in the movable plate, an inner support assembly is arranged on the stand, and a butt joint forming assembly is arranged on the movable plate, the butt joint forming assembly comprises a pair of moving frames, the moving frames are connected to the two ends of the bottom of the movable plate through horizontal linear driving, the moving frames are in C-shaped structure as a whole, butt joint grooves are formed in the two ends of the bottom of the moving frames, and forming molds are inserted and connected in the butt joint grooves. Through the above technical scheme, the technical problems of low forming efficiency and inconvenience in adjusting according to tire models in the conventional tire tread pattern forming device are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of tire processing, and more specifically, to a tire tread pattern forming apparatus. Background Technology

[0002] In tire manufacturing, tread pattern forming is a core process that determines a tire's grip, water drainage, and wear resistance. The accuracy and integrity of the tread pattern directly affect vehicle driving safety and tire lifespan. With the automotive industry's increasing demand for personalized and multi-specification tires (such as different models for passenger cars, trucks, and off-road vehicles), the requirements for the efficiency and adaptability of tread pattern forming equipment have significantly increased. However, traditional tire tread pattern forming equipment generally suffers from low forming efficiency and inconvenience in adjusting to different tire models, severely restricting the scale and flexibility of tire production.

[0003] Traditional molding equipment often uses fixed molds and a single-station structure: the mold and the molding mechanism are rigidly connected. For different tire models (such as 195 / 65R15, 225 / 50R17), the mold needs to be completely disassembled and replaced. Each mold change requires disassembling bolts and calibrating positioning, which takes a long time. Moreover, the equipment stops completely during the mold change process, resulting in production interruption. Although some devices support mold fine adjustment, they can only be adapted to tires of similar specifications and cannot meet the needs of cross-product type adjustment, making it difficult to adapt to the pace of mass production.

[0004] Therefore, developing a tread pattern forming device with high forming efficiency and easy adjustment according to tire model has become an urgent need for the industry to improve quality and efficiency. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a tire tread pattern forming device, which solves the technical problems of low forming efficiency and inconvenience in adjusting according to tire model that are common in traditional tire tread pattern forming devices in the prior art.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a tire tread pattern forming apparatus, comprising: A fixed plate and a movable plate, wherein the movable plate is connected to the bottom of the fixed plate by a vertical linear drive; The column and the internal support assembly are provided, wherein the column is vertically fixed inside the movable plate and the internal support assembly is disposed on the column; A docking forming component, wherein the docking forming component is disposed on the movable plate; The docking forming assembly includes a pair of movable frames, which are connected to the bottom ends of the movable plate by a horizontal linear drive. The movable frames are C-shaped in general, and docking grooves are provided at both ends of the bottom of the movable frames. A forming mold is inserted into the docking groove.

[0007] As a further technical solution, the molding die and the docking groove are fixedly connected by bolts, the molding die is provided with a number of heating tubes inside, and the molding die is provided with a temperature controller outside.

[0008] According to another aspect, in at least one embodiment of the present invention, the inner support component includes an air cavity, the air cavity being opened inside the lower end of the column, an outer annular groove being opened around the outer surface of the column, and a plurality of air holes being opened around the inner surface of the outer annular groove, the air holes being connected to the air cavity.

[0009] As a further technical solution, an inner support airbag is fitted inside the outer ring groove, and a long groove is opened at the upper end of the column. A connecting air pipe is installed in the long groove and is connected to the air cavity.

[0010] As a further technical solution, the surface of the fixed plate is provided with a circular opening, and the circular opening is located on the same axis as the column.

[0011] As a further technical solution, the fixing plate has an outer groove at both ends of its surface, and a number of fixing holes are formed in the outer groove.

[0012] As a further technical solution, a pair of horizontal grooves are provided at both ends of the surface of the fixed plate, and a stabilizing rod is provided in each of the horizontal grooves. The bottom ends of the movable frame are slidably connected to the stabilizing rods.

[0013] As a further technical solution, the molding molds are all C-shaped semi-circular structures, and arc-shaped grooves are opened on both ends of the inner side of the molding molds.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the mating molding assembly solves the problems of low molding efficiency and poor adaptability of traditional devices through flexible adjustment and constant temperature control design. The horizontal drive of the moving frame enables precise mold mating; the C-shaped structure and arc groove adapt to the tire contour, ensuring complete tread pattern; the detachable molding mold facilitates replacement and adapts to different tire models; the heating element and temperature controller work together to ensure constant mold temperature, allowing the tread material to fully soften and adhere, preventing tread blurring. This structure eliminates the need for complete mold changes, shortens adjustment time, improves molding efficiency, and ensures tread pattern accuracy and consistency, meeting the production needs of multiple tire specifications and reducing equipment maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is a cross-sectional view of the present disclosure; In the diagram: 1. Fixed plate; 2. Movable plate; 3. Column; 4. Butt forming assembly; 4-1. Moving frame; 4-2. Butt groove; 4-3. Forming mold; 4-4. Heating tube; 4-5. Temperature controller; 5. Inner support assembly; 5-1. Air chamber; 5-2. Outer ring groove; 5-3. Air hole; 5-4. Inner support airbag; 5-5. Long groove; 5-6. Connecting air pipe; 6. Circular opening; 7. Outer groove; 8. Fixing hole; 9. Horizontal groove; 10. Stabilizing rod; 11. Arc groove. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-3 As shown, it illustrates a tire tread pattern forming apparatus according to an embodiment of the present disclosure, comprising: A fixed plate 1 and a movable plate 2, wherein the movable plate 2 is connected to the bottom of the fixed plate 1 by a vertical linear drive; The column 3 and the inner support assembly 5 are provided. The column 3 is vertically fixed inside the movable plate 2, and the inner support assembly 5 is provided on the column 3. A docking forming component 4 is disposed on the movable plate 2; The docking forming assembly 4 includes a pair of movable frames 4-1. The movable frames 4-1 are connected to the bottom ends of the movable plate 2 by a horizontal linear drive. The movable frames 4-1 are C-shaped in general. Both ends of the bottom of the movable frames 4-1 are provided with docking grooves 4-2. A forming mold is inserted into the docking groove 4-2. The forming mold is fixedly connected to the docking groove 4-2 by bolts. Several heating tubes 4-4 are provided inside the forming mold. A temperature controller 4-5 is provided outside the forming mold.

[0024] In some examples, in order to achieve efficient and uniform forming of tire tread patterns, ensure clear tread outlines and accurate dimensions, and avoid tread forming defects caused by poor mold fit or uneven temperature, a docking forming component 4 was designed to meet the high precision requirements of tread pattern forming in tire production. This component includes a pair of movable frames 4-1 connected at both ends of the bottom of the movable plate 2 by a horizontal linear drive. They can move closer or further away synchronously in the horizontal direction. The movable frames 4-1 have a C-shaped structure with their openings facing the tire placement area, which not only provides sufficient placement space for the tire, but also ensures that the forming mold forms a wraparound wrap when docking, avoiding tread pattern omissions at the tire edge.

[0025] The horizontal linear drive can precisely control the movement distance of the moving frame 4-1, ensuring the fit between the two molding molds and preventing gaps that could cause tread material to spill out.

[0026] The docking slots 4-2 at both ends of the bottom of the movable frame 4-1 provide an insertion positioning reference for the forming mold. The forming mold is connected to the docking slot 4-2 by insertion and then fixed by bolts. This detachable structure makes it easy to replace the corresponding forming mold according to different tire specifications and tread patterns without replacing the entire movable frame 4-1, reducing equipment maintenance costs. At the same time, the bolt fixing can ensure that the mold does not shift during the forming process, ensuring the stability of the tread pattern forming.

[0027] Several heating tubes 4-4 inside the molding die are evenly distributed around the mold cavity. The heating tubes 4-4 are connected to an external power source through wires. After being powered on, they can quickly heat up and transfer heat to the surface of the mold cavity, causing the tire tread material to soften and better fit the pattern structure of the mold cavity, thus achieving pattern replication.

[0028] The temperature controller 4-5 outside the molding die is electrically connected to the heating tube 4-4. It can monitor the mold temperature in real time and accurately adjust the power of the heating tube 4-4 to avoid the tread material from burning due to excessive temperature or the pattern from being unclear due to excessive temperature, thus ensuring that the molding process is always in the optimal temperature range. During operation, the horizontal linear drive moves the moving frame 4-1 to align the forming mold with and wrap around the tire. The heating element 4-4 heats the tire to the set temperature, and the temperature controller 4-5 controls the temperature in real time. The tire tread material softens under heat and adheres to the mold pattern to form the tread. After forming, the moving frame 4-1 separates and removes the tire. Precise alignment ensures the integrity of the tread pattern, constant temperature heating ensures the forming quality, and the detachable mold enhances adaptability. All components work together to achieve efficient and precise forming of the tire tread pattern.

[0029] like Figures 1-3As shown in the figure, the internal support component 5 in this embodiment includes an air cavity 5-1, which is opened in the lower end of the column 3. An outer ring groove 5-2 is opened around the outer surface of the column 3. A plurality of air holes 5-3 are opened around the inner surface of the outer ring groove 5-2. The air holes 5-3 are connected to the air cavity 5-1. An internal support airbag 5-4 is fitted inside the outer ring groove 5-2. A long groove 5-5 is opened at the upper end of the column 3. A connecting air pipe 5-6 is installed in the long groove 5-5 and is connected to the air cavity 5-1.

[0030] In some examples, to achieve flexible support inside the tire, an external mating molding component 4 is used to complete the tread pattern forming, avoiding tread depressions or pattern deformation during forming due to lack of internal tire support. This also adapts to tires with different inner diameters, ensuring the tire maintains a stable shape throughout the forming process, improving tread pattern forming accuracy, and meeting the internal support requirements of tire tread forming. An internal support component 5 is designed, which includes an air chamber 5-1 opened at the lower end of the column 3, serving as a channel for gas storage and delivery. The air chamber 5-1 is connected to an external inflation device (such as a vacuum pump) via a connecting air pipe 5-6 within a long groove 5-5 at the upper end of the column 3. The inflation device can continuously deliver compressed air into the air chamber 5-1, providing inflation power for the internal support airbag 5-4. The long groove 5-5 provides installation and protection space for the connecting air pipe 5-6, preventing the pipe from being squeezed and damaged during equipment operation, and ensuring smooth gas delivery. The outer ring groove 5-2 around the outer surface of the column 3 provides installation positioning for the inner support airbag 5-4. The inner support airbag 5-4 is fitted into the ring groove, and its inner side fits tightly with the ring groove to prevent axial displacement when the airbag is inflated. Several air holes 5-3 around the inner surface of the outer ring groove 5-2 are evenly distributed and communicate with the air chamber 5-1. Compressed air in the air chamber 5-1 can enter the inner support airbag 5-4 evenly through the air holes 5-3, so that the airbag expands synchronously in the circumferential direction, avoiding uneven local expansion of the airbag and causing imbalance of force inside the tire, and ensuring that the inner wall of the tire is evenly supported.

[0031] The inner support airbag 5-4 is made of highly elastic and wear-resistant rubber material, which has good pressure resistance and deformation ability. After inflation, it can fit tightly against the inner wall of the tire to form a flexible support. It will not damage the inner wall of the tire, but can provide sufficient support for the tire. When the external molding mold is pressurized, the tread material can fully fill the mold cavity, ensuring that the pattern is clear and full.

[0032] During operation, compressed air is introduced through air pipe 5-6. The gas enters the inner support airbag 5-4 via air chamber 5-1 and air hole 5-3, inflating to support the inner wall of the tire. During the forming process, the inflation equipment maintains a stable air pressure to ensure constant airbag support force. After forming, the airbag deflates and contracts, facilitating tire removal. Uniform inflation ensures balanced support, the flexible airbag protects the inner wall of the tire, and stable air pressure ensures reliable support. All components work together to provide stable internal support for tire tread pattern forming, while external forming components enhance forming quality.

[0033] For example, such as Figure 1 As shown, the surface of the fixed plate 1 has a circular opening 6, and the circular opening 6 is located on the same axis as the column 3.

[0034] In some examples, the circular opening 6 on the surface of the fixed plate 1 is coaxial with the column 3. This coaxial design ensures that the column 3 is always centered in the device when installed vertically, preventing the column 3 from shifting and causing eccentricity in the support of the tire by the inner support assembly 5. At the same time, the circular opening 6 can serve as a positioning reference for the installation of the column 3, allowing operators to quickly calibrate the position of the column 3 and reduce installation and adjustment time.

[0035] For example, such as Figure 1 As shown, both ends of the surface of the fixing plate 1 are provided with outer grooves 7, and a number of fixing holes 8 are provided in the outer grooves 7.

[0036] In some examples, the outer grooves 7 at both ends of the surface of the fixing plate 1, with several fixing holes 8 inside, can be used to connect and fix the device to external equipment (such as production line frames). The design of the outer grooves 7 provides installation and adjustment space for fixing bolts, making it easy for operators to fine-tune the fixing position of the fixing plate 1 according to the mounting hole position of the external equipment, and fixing can be completed without precise alignment, improving the flexibility and convenience of device installation.

[0037] For example, such as Figure 2 As shown, a pair of horizontal grooves 9 are provided at both ends of the surface of the fixed plate 1, and a stabilizing rod 10 is provided in each of the horizontal grooves 9. The bottom ends of the movable frame 4-1 are slidably connected to the stabilizing rod 10.

[0038] In some examples, stabilizing rods 10, located within the transverse grooves 9 at both ends of the surface of the fixed plate 1, are slidably connected to the bottom ends of the movable frame 4-1, forming an additional guide support structure for the movable frame 4-1. Compared to guides that rely solely on horizontal linear drive, the stabilizing rods 10 can limit the vertical offset and swaying of the movable frame 4-1 during sliding, ensuring that the movable frame 4-1 always moves smoothly in the horizontal direction. This, in turn, ensures precise fitting when the two molding dies are joined, preventing deviations in mold joining due to swaying of the movable frame 4-1, which would affect the accuracy of tread pattern forming.

[0039] For example, such as Figure 2 As shown, the molding molds are all C-shaped semi-circular structures, and arc-shaped grooves 11 are opened on both ends of the inner side of the molding molds.

[0040] In some examples, the mold has a C-shaped semi-circular structure, and the arc-shaped grooves 11 on its inner two end faces can adapt to the circular contour of the tire, so that the mold and the tire surface fit more closely and avoid gaps between the tire edge and the mold, which would cause tread material to overflow or the tread pattern to form incompletely. The cooperation between the C-shaped semi-circular structure and the arc-shaped grooves 11 allows the mold to form a complete annular cavity when docking, which fully covers the tire tread area and ensures that the tread pattern is formed evenly around the tire.

[0041] In practical use: Select the appropriate forming mold according to the tire model to be processed, insert it into the mating groove 4-2 of the mating forming component 4, and fix it with bolts. Place the tire on the outside of the inner support airbag 5-4 at the lower end of the column 3, and introduce compressed air into the air chamber 5-1 through the air pipe 5-6. The gas enters the inner support airbag 5-4 through the air hole 5-3. After the airbag inflates, it fits tightly against the inner wall of the tire, realizing flexible support inside the tire. Start the vertical linear drive to drive the movable plate 2 to descend to a suitable height, and then push the moving frames 4-1 at both ends through the horizontal linear drive to align the two C-shaped forming molds and wrap around the tire tread. Turn on the heating pipe 4-4 in the forming mold, and adjust the mold to the set temperature through the temperature controller 4-5. After the tread material is heated and softened, it fits into the mold cavity to form the pattern. After molding is completed, the heating tube 4-4 is turned off, the inner support airbag 5-4 is deflated and contracted, the horizontal linear drive drives the moving frame 4-1 to separate, the vertical linear drive lifts the movable plate 2, and the molded tire is taken out. The whole process achieves efficient adaptation and precise molding.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A tire tread pattern forming device, characterized in that, include: A fixed plate (1) and a movable plate (2), wherein the movable plate (2) is connected to the bottom of the fixed plate (1) by a vertical linear drive; The column (3) and the inner support assembly (5) are provided on the column (3). The column (3) is vertically fixed inside the movable plate (2). A docking forming component (4) is disposed on the movable plate (2); The docking forming assembly (4) includes a pair of movable frames (4-1). The movable frames (4-1) are connected to the bottom ends of the movable plate (2) by a horizontal linear drive. The movable frames (4-1) are C-shaped in general. The bottom ends of the movable frames (4-1) are provided with docking grooves (4-2). A forming mold (4-3) is inserted into the docking grooves (4-2).

2. The tire tread pattern forming device according to claim 1, characterized in that, The molding die and the docking groove (4-2) are fixedly connected by bolts. The molding die is provided with a number of heating tubes (4-4) inside and a temperature controller (4-5) is provided outside the molding die.

3. The tire tread pattern forming device according to claim 1, characterized in that, The inner support assembly (5) includes an air cavity (5-1), which is located inside the lower end of the column (3). An outer ring groove (5-2) is formed around the outer surface of the column (3), and a plurality of air holes (5-3) are formed around the inner surface of the outer ring groove (5-2). The air holes (5-3) are connected to the air cavity (5-1).

4. The tire tread pattern forming device according to claim 3, characterized in that, An inner support airbag (5-4) is fitted inside the outer ring groove (5-2). A long groove (5-5) is opened at the upper end of the column (3). A connecting air pipe (5-6) is installed in the long groove (5-5). The connecting air pipe (5-6) is connected to the air chamber (5-1).

5. The tire tread pattern forming device according to claim 1, characterized in that, The fixed plate (1) has a circular opening (6) on its circular surface, and the circular opening (6) is located on the same axis as the column (3).

6. The tire tread pattern forming device according to claim 1, characterized in that, The fixing plate (1) has an outer groove (7) at both ends of its surface, and a number of fixing holes (8) are provided in the outer groove (7).

7. The tire tread pattern forming device according to claim 1, characterized in that, The fixed plate (1) has a pair of horizontal grooves (9) at both ends of its surface. Each horizontal groove (9) is provided with a stabilizing rod (10). The bottom ends of the movable frame (4-1) are slidably connected to the stabilizing rod (10).

8. The tire tread pattern forming device according to claim 1, characterized in that, The molding molds (4-3) are all C-shaped semi-circular structures, and arc-shaped grooves (11) are opened on both ends of the inner side of the molding molds (4-3).

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