A bead forming disc with positioning function

Abstract

This invention discloses a steel wire ring forming disc with positioning function, relating to the field of tire manufacturing technology. It includes a forming disc and multiple arc-shaped forming blocks hinged to the forming disc. The multiple forming blocks form a circle, and a first driving device is provided on each forming block. The first driving device drives the forming block to expand or contract. Grooves are evenly provided on the forming blocks, and a baffle is installed at the bottom of the forming blocks. A second driving device is provided on the baffle, which drives the baffle to push out or retract into the groove. A positioning channel is formed between adjacent baffles. By setting the baffles, a positioning channel is formed between adjacent baffles, thus creating a ring-shaped positioning channel around the periphery of the forming disc. Therefore, during the processing of the steel wire ring, the steel wire remains positioned within the positioning channel, avoiding the phenomenon of misalignment between different steel wire rings. After the steel wire is coiled, the baffle retracts into the groove, thereby releasing the coil.

Description

Technical Field

[0001] This invention relates to the field of tire manufacturing technology, and in particular to a steel wire ring forming disc with positioning function. Background Technology

[0002] Currently, in tire production, bead forming is a crucial step in the semi-finished tire manufacturing process. The required bead size varies depending on the tire's specifications and function. Existing bead production involves extruding and winding multiple wires simultaneously. When multiple wires are extruded simultaneously, positioning is typically achieved using a pressure roller with varying numbers of grooves. For example, if twelve wires are extruded simultaneously to produce three rows of bead rings, the pressure roller would have four corresponding grooves, each containing four wires. However, this structure lacks positioning mechanisms on the bead forming disc, relying entirely on the pressure roller grooves for guidance and positioning. Although the grooves are well-positioned, the bottom portion, far from the grooves, often shifts during winding, causing misalignment between bead layers and resulting in uneven layering, which negatively impacts the final bead's performance. Summary of the Invention

[0003] The purpose of this invention is to provide a wire ring forming disc with positioning function. This wire ring forming disc with positioning function ensures that the wire ring does not delaminate during the forming process by setting a positioning channel on the wire ring forming disc.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A wire coil forming disc with positioning function includes a forming disc and a plurality of arc-shaped forming blocks hinged to the forming disc. The plurality of forming blocks form a circle. A first driving device is provided on the forming block. The first driving device drives the forming block to expand or contract. Slots are uniformly provided on the forming block. A baffle is installed at the bottom of the forming block. A second driving device is provided on the baffle. The second driving device drives the baffle to push out or retract into the slot. A positioning channel is formed between adjacent baffles.

[0006] A tension spring is provided between the molding block and the molding disc, and the first driving device includes a first cylinder fixed on the molding disc, with the output shaft of the first cylinder abutting the bottom of the molding block.

[0007] The baffles on the same molding block are fixed together by a rotating shaft, which is rotatably mounted on the molding block, and a torsion spring is provided between the rotating shaft and the molding block.

[0008] The second driving device includes a second cylinder fixed on the forming disc. When the output shaft of the second cylinder pushes out, it pushes the baffle out of the slot.

[0009] The rotating shaft is concentric with the hinge point of the forming block, and the output shaft of the second drive device is hinged to two adjacent rotating shafts via a connecting rod.

[0010] Wherein, the free ends of two adjacent molding blocks are adjacent, the first cylinder is fixed at the bottom of the free end, and a lifting block is fixed on the output shaft of the first cylinder, the lifting block being directly opposite the free end.

[0011] The lifting block is a trapezoidal block.

[0012] The two lifting blocks are arranged vertically, and a pressure block is provided on the upper lifting block.

[0013] There are four molding blocks, which form a circle.

[0014] Each of the molding blocks is provided with at least two tension springs between it and the molding disc, and the tension springs are evenly distributed.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are:

[0016] This invention discloses a wire coil forming disc with positioning function, comprising a forming disc and multiple arc-shaped forming blocks hinged to the forming disc. The multiple forming blocks form a circle, and a first driving device is provided on each forming block. The first driving device drives the forming block to expand or contract. Grooves are evenly provided on each forming block, and a baffle is installed at the bottom of the forming block. A second driving device is provided on the baffle, which drives the baffle to push out or retract into the groove. A positioning channel is formed between adjacent baffles. By setting the baffles, a positioning channel is formed between adjacent baffles, thus creating a ring-shaped positioning channel around the periphery of the forming disc. During the wire coil processing, the wire remains positioned within the positioning channel, avoiding the phenomenon of misalignment between different wire coils. After the wire is coiled, the baffle retracts into the groove, thereby releasing the coil.

[0017] A tension spring is provided between the molding block and the molding disc. The first driving device includes a first cylinder fixed on the molding disc. The output shaft of the first cylinder abuts against the bottom of the molding block. The tension spring keeps the molding disc contracted, thus facilitating disengagement. The first cylinder both expands the molding disc and limits its movement.

[0018] By installing a torsion spring between the baffle and the forming block, it is ensured that the baffle can retract smoothly into the forming block, facilitating disengagement.

[0019] The second driving device includes a second cylinder fixed on the forming plate. When the output shaft of the second cylinder pushes out, it pushes the baffle out of the slot, so that the second cylinder can overcome the torsion spring force and push the baffle out.

[0020] The two rotating shafts are controlled by a second drive unit, thereby reducing the amount of drive unit input.

[0021] In summary, the present invention provides a wire coil forming disc with positioning function, which solves the technical problem of wire coil layering during the forming process in the prior art. The present invention sets up baffles, and the positioning channels are formed between adjacent baffles, thereby setting up an annular positioning channel around the forming disc. Thus, during the processing of the wire coil, the wire is always positioned within the positioning channel, avoiding the layering phenomenon of different wire coils. After the wire is coiled, the baffles are retracted into the slots, thereby removing the coil. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a steel wire ring forming disc with positioning function according to the present invention;

[0023] Figure 2 This is a structural schematic diagram of Embodiment 2;

[0024] Figure 3 This is a structural schematic diagram of Embodiment 3;

[0025] Figure 4 These are schematic diagrams of the structures of the three baffles in the embodiments;

[0026] In the diagram: 1. Forming plate, 11. Mounting column, 111. Mounting column fixing rod, 2. Forming block, 201. Groove, 21. Spring fixing rod, 22. Tension spring, 3. First cylinder, 4. Lifting block, 5. Baffle, 51. Rotating shaft, 52. Rotating rod, 53. Pulling shaft, 531. Bushing, 6. Second cylinder, 7. Pressing block, 8. Connecting rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] The directions mentioned in this manual are based on the directions shown in the attached diagram and represent only relative positional relationships, not absolute positional relationships.

[0029] Example 1:

[0030] like Figure 1As shown, a wire coil forming disc with positioning function includes a forming disc 1 and multiple arc-shaped forming blocks 2 hinged to the forming disc 1. The multiple forming blocks 2 form a circle. In this embodiment, four forming blocks 2 are provided. In practical applications, three, five, or six can be designed as needed. This embodiment does not limit this. A first driving device is provided on the forming block 2. The first driving device drives the forming block 2 to expand or contract. In this embodiment, the first driving device is a first cylinder 3. In practical applications, an electric cylinder or an electric push rod can be used, as long as it can lift the forming block 2. This embodiment does not limit this.

[0031] like Figure 1 and Figure 2 As shown, one end of the forming block 2 is hinged to the forming plate 1, and the other end is a free end. The free ends of two adjacent forming blocks 2 are adjacent. The first cylinder 3 is fixed on the forming plate 1 and is fixed at the bottom of the free end. A lifting block 4 is fixed on the output shaft of the first cylinder 3. The lifting block 4 is directly opposite the free end, so that one first cylinder 3 can lift two forming blocks 2, thereby greatly reducing the number of first cylinders 3 installed. In practical applications, one first cylinder 3 can correspond to one forming block 2.

[0032] To improve the accuracy of lifting block 4 lifting molding block 2, lifting block 4 is a trapezoidal block. The contact position between the end of molding block 2 and lifting block 4 is the waist position of trapezoidal block. Molding block 2 is provided with a slope that matches the trapezoidal block, so that the top of molding block 2 and lifting block 4 are exactly flush. Thus, when molding block 2 is lifted, the upper waist position of molding block 2 fills the gap after the adjacent molding block 2 expands.

[0033] In this embodiment, since four forming blocks 2 are provided, two first cylinders 3 are provided. A mounting post 11 is provided on the forming plate 1, and the first cylinder 3 is fixedly mounted on the mounting post 11. The length of the lifting block 4 is the same as the width of the forming block 2. The output shaft of the first cylinder 3 is fixed in the middle position of the lifting block 4, thus ensuring that the lifting block 4 is subjected to uniform force when lifted. A spring fixing rod 21 is provided at the bottom of the forming block 2, and a mounting post fixing rod 111 is provided on the mounting post 11. The mounting post fixing rod 111 and the spring fixing rod 21 are arranged parallel to each other. A tension spring 22 is provided between the mounting post fixing rod 111 and the spring fixing rod 21. At least two tension springs 22 are provided between each forming block 2 and the forming plate 1. The tension springs 22 are evenly distributed, thus ensuring that the forming block 2 is subjected to balanced force when tensioned. The two lifting blocks 4 are vertically arranged. A pressure block 7 is provided on the upper lifting block 4, and a pressing slope is provided on the lifting block 4 corresponding to the pressure block 7.

[0034] When the first cylinder 3 retracts, the forming block 2 retracts under the action of the tension spring 22, and the free end of the forming block 2 presses against the lifting block 4, which limits the forming block 2. When the first cylinder 3 extends, the lifting block 4 lifts up, and the forming block 2 overcomes the tension of the tension spring 22. The free end of the forming block 2 expands outward until it forms a standard circle.

[0035] The molding block 2 has uniformly arranged slots 201. A baffle 5 is installed at the bottom of the molding block 2 and slides within the slots 201. A second driving device is provided on the baffle 5, which drives the baffle 5 to lift or retract into the slots 201. Adjacent baffles 5 form a positioning channel. Each slot 201 contains one baffle 5. In this embodiment, there are five slots 201, corresponding to five baffles 5. The five baffles 5 on the same molding block 2 are connected together, so they can be lifted by the same second driving device. In this embodiment, the second driving device is a second cylinder 6. In practical applications, an electric cylinder or an electric push rod can be used. The output shaft of the second cylinder 6 is fixed to the baffle 5. The baffle 5 is not fixed to the molding block 2, thereby preventing displacement when the molding block 2 expands and causing interference with the baffle 5.

[0036] Example 2:

[0037] like Figure 1 and Figure 2 As shown, this embodiment is basically the same as embodiment one, except that one end of the five baffles 5 on the same molding block 2 is fixed to the rotating shaft 51. The rotating shaft 51 is rotatably mounted on the bottom of the molding block 2, and a torsion spring (not shown in the figure) is provided between the rotating shaft 51 and the molding block 2. The torsion spring retracts the baffle 5 into the slot 201. The output shaft of the second cylinder 6 is not fixed to the baffle 5. After the output shaft of the second cylinder 6 extends, it abuts against the bottom of any baffle 5, pushing the baffle 5 out of the slot 201.

[0038] Example 3:

[0039] like Figure 3 As shown, this embodiment is basically the same as Embodiment 1, except that a second cylinder 6 controls the extension and retraction of the baffles 5 on the two forming blocks 2. The hinge point of the rotating shaft 51 and the forming block 2 is concentric, and the bottom of the forming block 2 is provided with a clearance groove to ensure the smooth installation of the baffles 5. The two ends of the rotating shaft 51 are connected to the pull shaft 53 through the rotating rod 52. The bushing 531 is rotatably mounted on the pull shaft 53. A connecting rod 8 is provided between the second cylinder 6 and the bushing 531. One end of the connecting rod 8 is fixed to the bushing 531, and the other end is hinged to the output shaft of the second cylinder 6. The bushings 531 of the baffles 5 on adjacent forming blocks 2 are hinged to the output shaft of the same second cylinder 6.

[0040] like Figure 3As shown, when the second cylinder 6 is extended, the other end of the baffle 5 pushes out of the slot 201 under the action of the second cylinder 6. When the second cylinder 6 is retracted, the second cylinder 6 drives the pull shaft 53 to move towards the second cylinder 6, and the other end of the baffle 5 (the end away from the hinge point) retracts into the slot 201.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the working process of a wire ring forming disc with positioning function is as follows:

[0042] In the initial state, during operation, the first cylinder 3 extends to expand the forming plate 1, and the second cylinder 6 lifts up to push the baffle 5 out of the slot 201. The wire ring is fed into the pressure block 7 on the forming plate 1 through the front wire feeding arm to clamp the wire end. The forming plate 1 rotates to wind the wire. During the winding process, multiple wires are separated and positioned by the baffle 5 on the forming plate 1. After winding is completed, the wire is cut and the pressure roller descends to press the wire end. Then the first cylinder 3 and the second cylinder 6 retract, causing the baffle 5 to retract into the forming plate 1, and the formed wire ring is taken out.

[0043] This invention provides a wire coil forming disc with positioning function, which solves the technical problem of wire coil layering during the forming process in the prior art. This invention sets up baffles, and the positioning channels are formed between adjacent baffles, thus setting up an annular positioning channel around the forming disc. During the processing of the wire coil, the wire is always positioned within the positioning channel, avoiding the layering phenomenon of different wire coils. After the wire is coiled, the baffles are retracted into the slots, thereby removing the coil.

[0044] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the scope of protection of this invention.

Claims

1. A wire coil forming disc with positioning function, comprising a forming disc and a plurality of arc-shaped forming blocks hinged to the forming disc, the plurality of forming blocks forming a circle, a first driving device being disposed on each forming block, the first driving device driving the forming blocks to expand or contract, characterized in that: The molding block is uniformly provided with slots, and a baffle is installed at the bottom of the molding block. A second driving device is provided on the baffle. The second driving device drives the baffle to push out or retract into the slot, and a positioning channel is formed between adjacent baffles. The baffles on the same molding block are fixed together by a rotating shaft, which is rotatably mounted on the molding block, and a torsion spring is provided between the rotating shaft and the molding block.

2. The wire ring forming disc with positioning function according to claim 1, characterized in that: A tension spring is provided between the molding block and the molding disc. The first driving device includes a first cylinder fixed on the molding disc, and the output shaft of the first cylinder abuts against the bottom of the molding block.

3. A wire ring forming disc with positioning function according to claim 2, characterized in that: The second driving device includes a second cylinder fixed on the forming disc. When the output shaft of the second cylinder pushes out, it pushes the baffle out of the slot.

4. A wire coil forming disc with positioning function according to claim 2, characterized in that: The rotating shaft is concentric with the hinge point of the molding block, and the output shaft of the second drive device is hinged to two adjacent rotating shafts via a connecting rod.

5. A wire ring forming disc with positioning function according to claim 2, characterized in that: The free ends of two adjacent molding blocks are adjacent to each other. The first cylinder is fixed at the bottom of the free end. A lifting block is fixed on the output shaft of the first cylinder, and the lifting block is directly opposite the free end.

6. A wire coil forming disc with positioning function according to claim 5, characterized in that: The lifting block is a trapezoidal block.

7. A wire ring forming disc with positioning function according to claim 6, characterized in that: The two lifting blocks are arranged vertically, and a pressure block is provided on the upper lifting block.

8. A wire coil forming disc with positioning function according to claim 1, characterized in that: There are four molding blocks, which form a circle.

9. A wire coil forming disc with positioning function according to claim 2, characterized in that: At least two tension springs are provided between each of the molding blocks and the molding disc, and the tension springs are evenly distributed.

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