A compression roller with air evacuation structure for tire production

Abstract

The utility model belongs to tire production technical field, and disclose a kind of air emptying structure's compression roller for tire production, including compression roller body, the bottom end of compression roller body is fixedly connected with two connecting heads, wherein the connecting head is used to connect inlet pipeline, another the connecting head is used to connect exhaust pipeline, the inside of compression roller body top is equipped with several pistons, several The piston is all communicated with the air passage of two connecting heads by air pressure cavity, the outer surface of compression roller body is sleeved with several exhaust extrusion bearings, the cross section of compression roller body and exhaust extrusion bearing is all rectangle, and the height of exhaust extrusion bearing cross section is greater than the height of compression roller body cross section, the utility model is driven by air pressure driving structure of piston and double air passage connecting head, under the alternate action of compressed air and negative pressure, drive exhaust extrusion bearing to move up and down and extrude tire material, realize that air is oriented discharge along axial end surface, avoid bubble residual.

Description

Technical Field

[0001] This utility model belongs to the field of tire manufacturing technology, specifically a pressure roller with an air venting structure for tire manufacturing. Background Technology

[0002] In the tire manufacturing process, the pressure roller is a key component, and its performance directly affects tire quality. Existing pressure rollers often suffer from air residue, leading to problems such as air bubbles and poor adhesion in the tire. To solve these problems, a pressure roller with an air venting structure has been developed.

[0003] Meanwhile, the patent specification with application number CN202412727U discloses a tire forming roller device, which "improves the removal of excess air between the triangular rubber and the tire carcass by adding a roller device specifically for rolling the triangular rubber, thereby comprehensively improving the bonding quality between the various components and enhancing the tire manufacturing quality. The roller device is located on the side of the forming drum and includes a base. It is a combined roller device that performs rolling operations on the tread and sidewall sequentially before and after the tire carcass is reverse-wrapped. The combined roller device is slidably connected to the base via a carriage. It also includes a side roller device that performs rolling operations on the triangular rubber before the tire carcass is reverse-wrapped. The side roller device includes a bracket, a pair of side rollers, and a radial drive device that drives the side rollers to reciprocate along the radial direction of the tire carcass."

[0004] Existing tire production pressure rollers cannot effectively expel air generated during tire material bonding, resulting in air bubbles in the tire tread and affecting quality. Secondly, the traditional pressure roller's venting structure cannot dynamically adjust the pressure according to the material thickness, and the bearing limiting structure is prone to loosening, causing the venting position to shift.

[0005] Therefore, a pressure roller with an air venting structure for tire production is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a pressure roller with an air venting structure for tire production. It has the advantages of enabling air to be directionally discharged along the axial end face, avoiding air bubble residue, ensuring the axial position of the exhaust extrusion bearing is fixed, and not affecting its rotation with the exhaust extrusion bearing, thereby improving exhaust stability and device reliability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pressure roller with an air venting structure for tire production, comprising a pressure roller body, two connectors fixedly connected to the bottom end of the pressure roller body, wherein one connector is used to connect to an air inlet pipe and the other connector is used to connect to an exhaust pipe, a plurality of pistons are provided on the inner side of the top end of the pressure roller body, and the plurality of pistons are all connected to the air passages of the two connectors through air pressure chambers, a plurality of exhaust extrusion bearings are sleeved on the outer surface of the pressure roller body, the cross-sections of the pressure roller body and the exhaust extrusion bearings are both rectangular, and the height of the cross-section of the exhaust extrusion bearings is greater than the height of the cross-section of the pressure roller body, and limit components are installed on both sides of the outer surface of the pressure roller body.

[0008] Preferably, all of the exhaust extrusion bearings are made of plastic, and the outer surface of all of the exhaust extrusion bearings is coated with an anti-slip coating.

[0009] Preferably, each exhaust extrusion bearing has at least one piston corresponding to its inner surface, and several exhaust extrusion bearings are arranged axially along the outer surface of the pressure roller body, with the axial end faces of adjacent exhaust extrusion bearings fitting together.

[0010] Preferably, the limiting component includes a limiting frame, the inner surface of which is in contact with the outer surface of the pressure roller body. Both ends of the limiting frame have through-hole circular grooves, and the inner surfaces of both circular grooves have receiving grooves. A locking rod is movably inserted into the inner surfaces of both circular grooves. A return spring is sleeved on each of the two locking rods on the inner surfaces of the circular grooves, and a movable plate is fixedly sleeved on each of the two locking rods on the inner surfaces of the circular grooves. The two movable plates are slidably sleeved with the two receiving grooves. Both ends of the pressure roller body have locking grooves, and one corresponding end of each of the two locking rods passes through the two circular grooves and extends into the locking grooves.

[0011] Preferably, one end of the limiting frame is equipped with a plurality of ball bearings, and the plurality of ball bearings are in contact with one of the exhaust extrusion bearings.

[0012] Preferably, two limiting blocks are fixedly connected to the outer surfaces of the two movable plates, and the inner surfaces of the two receiving grooves are provided with limiting grooves that cooperate with the two limiting blocks.

[0013] Preferably, both ends of the two locking rods are engraved with anti-slip textures.

[0014] Preferably, one end of each of the two return springs is fixedly connected to one side of the inner wall of each of the two receiving grooves, and one end of each of the two return springs is fixedly connected to one end of each of the two moving plates.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a pneumatic drive structure with a piston and a dual-airway connector. Under the alternating action of compressed air and negative pressure, the exhaust extrusion bearing moves up and down to extrude tire material, thereby achieving directional discharge of air along the axial end face and avoiding air bubble residue.

[0017] 2. By setting a limiting component, this utility model ensures that the axial position of the exhaust extrusion bearing is fixed under the action of the locking rod and the return spring, and under the guiding action of the ball limit and the limiting block, while not affecting the rotation of the exhaust extrusion bearing, thereby improving the exhaust stability and the reliability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the pressure roller body and the limiting frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the pressure roller body structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the exhaust extrusion bearing structure of this utility model;

[0022] Figure 5 This is a cross-sectional view of the limiting frame and a schematic diagram of the structure with the snap-fit ​​rod removed, according to this utility model.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the limiting frame of this utility model.

[0024] In the diagram: 1. Pressure roller body; 2. Exhaust extrusion bearing;

[0025] 3. Limiting assembly; 31. Limiting frame; 311. Circular groove; 312. Receiving groove; 313. Limiting groove; 314. Locking rod; 315. Moving plate; 316. Limiting block; 317. Return spring;

[0026] 32. Ball bearing; 33. Snap-fit ​​groove;

[0027] 4. Piston; 5. Connector. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 6 As shown, this utility model provides a pressure roller with an air venting structure for tire production, including a pressure roller body 1. Two connectors 5 are fixedly connected to the bottom end of the pressure roller body 1. One connector 5 is used to connect to an air inlet pipe, and the other connector 5 is used to connect to an exhaust pipe. Several pistons 4 are provided on the inner side of the top end of the pressure roller body 1. The pistons 4 are all connected to the air passages of the two connectors 5 through air pressure chambers. Several exhaust extrusion bearings 2 are sleeved on the outer surface of the pressure roller body 1. The cross-sections of the pressure roller body 1 and the exhaust extrusion bearings 2 are both rectangular, and the height of the cross-section of the exhaust extrusion bearings 2 is greater than the height of the cross-section of the pressure roller body 1. Through the air pressure drive structure of the pistons 4 and the double air passage connectors 5, under the alternating action of compressed air and negative pressure, the exhaust extrusion bearings 2 are driven to move up and down to extrude the tire, so as to realize the directional discharge of air along the axial end face and avoid the residue of air bubbles. Limiting components 3 are installed on both sides of the outer surface of the pressure roller body 1.

[0030] Specifically, several exhaust extrusion bearings 2 are made of plastic, and the outer surface of several exhaust extrusion bearings 2 is coated with anti-slip paint. The plastic exhaust extrusion bearings 2, together with the anti-slip paint, increase the friction with the tire material while ensuring structural strength, making the exhaust process more stable and preventing uneven exhaust caused by slippage.

[0031] like Figures 1 to 6 As shown, each exhaust extrusion bearing 2 has at least one piston 4 corresponding to its inner surface. Several exhaust extrusion bearings 2 are arranged axially along the outer surface of the pressure roller body 1, and the axial end faces of adjacent exhaust extrusion bearings 2 are fitted together. The one-to-one correspondence between the piston 4 and the exhaust extrusion bearing 2, combined with the axially fitted arrangement, ensures that the exhaust pressure in each area is uniform. The tight fit of the axial end faces guides the air to be discharged in a directional manner, thereby improving the exhaust efficiency.

[0032] Furthermore, the limiting component 3 includes a limiting frame 31, the inner surface of which is in contact with the outer surface of the pressure roller body 1. Both ends of the limiting frame 31 are provided with through-hole circular grooves 311. The inner surfaces of both circular grooves 311 are provided with receiving grooves 312. A locking rod 314 is movably inserted into the inner surfaces of both circular grooves 311. Each locking rod 314 is located on the inner surface of the circular groove 311 and is fitted with a return spring 317. The two locking rods 314 are located on the inner surface of the circular groove 311. Each surface is fixedly fitted with a movable plate 315. The two movable plates 315 are slidably fitted with two receiving grooves 312 respectively. Both ends of the pressure roller body 1 are provided with snap-fit ​​grooves 33. The corresponding ends of the two snap-fit ​​rods 314 pass through the two circular grooves 311 and extend into the snap-fit ​​grooves 33 respectively. The snap-fit ​​structure of the limiting component 3 provides a continuous locking force through the return spring 317, so that the limiting frame 31 is firmly installed on the pressure roller body 1, preventing loosening during operation and ensuring the stable operation of the exhaust extrusion bearing 2.

[0033] like Figures 1 to 6 As shown, a number of balls 32 are installed at one end of the limiting frame 31. The balls 32 are in contact with one of the exhaust extrusion bearings 2. The rolling contact of the balls 32 not only restricts the axial displacement of the exhaust extrusion bearing 2, but also reduces the rotational resistance, so that the exhaust extrusion bearing 2 can rotate flexibly while maintaining accurate axial position and improving the exhaust effect.

[0034] It is worth noting that two limiting blocks 316 are fixedly connected to the outer surfaces of the two movable plates 315, and the inner surfaces of the two receiving grooves 312 are provided with limiting grooves 313 that cooperate with the two limiting blocks 316.

[0035] like Figures 1 to 6 As shown, both ends of the two locking rods 314 are engraved with anti-slip textures. The anti-slip textures increase the friction of the locking rods 314 during operation, making it easier to install and remove the limiting component 3, improving maintenance efficiency, and enhancing stability in the locking state.

[0036] It is worth emphasizing that one end of each of the two return springs 317 is fixedly connected to one side of the inner wall of each of the two receiving grooves 312, and one end of each of the two return springs 317 is fixedly connected to one end of each of the two moving plates 315. The fixed structure at both ends of the return springs 317 provides a stable elastic force to ensure that the locking rod 314 always remains in the locking position, effectively preventing loosening caused by vibration or impact and improving the overall reliability of the device.

[0037] Working principle and process: When compressed air is input into the air pressure chamber through the intake pipe via connector 5, piston 4 moves upward under air pressure, driving exhaust extrusion bearing 2 to descend synchronously and extrude tire material, causing air to be discharged along the axial contact end face of adjacent exhaust extrusion bearing 2; when the exhaust pipe draws air through another connector 5 to form negative pressure, piston 4 returns to its original position, and exhaust extrusion bearing 2 rises accordingly, completing one exhaust cycle. When the limiting component 3 is working, the locking rod 314 is first pulled by external force to extend and retract outward of the circular groove 311. At this time, the return spring 317 is compressed and moved. Plate 315 slides within receiving groove 312, and limiting block 316 moves along limiting groove 313. After aligning limiting frame 31 with both ends of pressure roller body 1, locking rod 314 is released. Reset spring 317 elastically resets and pushes moving plate 315, so that the end of locking rod 314 is inserted into locking groove 33 to complete locking. During operation, ball 32 at one end of limiting frame 31 rolls against the outer surface of exhaust extrusion bearing 2. When exhaust extrusion bearing 2 moves up and down, ball 32 restricts its axial movement and reduces movement resistance through rolling friction, thereby achieving stable operation of exhaust extrusion bearing 2.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure roller with an air venting structure for tire production, comprising a pressure roller body (1), characterized in that: Two connectors (5) are fixedly connected to the bottom end of the pressure roller body (1). One connector (5) is used to connect to the air inlet pipe, and the other connector (5) is used to connect to the exhaust pipe. Several pistons (4) are provided on the inner side of the top end of the pressure roller body (1). Several pistons (4) are connected to the air passages of the two connectors (5) through the air pressure chamber. Several exhaust extrusion bearings (2) are sleeved on the outer surface of the pressure roller body (1). The cross-sections of the pressure roller body (1) and the exhaust extrusion bearings (2) are both rectangular, and the height of the cross-section of the exhaust extrusion bearings (2) is greater than the height of the cross-section of the pressure roller body (1). Limiting components (3) are installed on both sides of the outer surface of the pressure roller body (1).

2. A pressure roller with an air venting structure for tire production according to claim 1, characterized in that: Several of the exhaust extrusion bearings (2) are made of plastic, and the outer surface of several exhaust extrusion bearings (2) is coated with anti-slip coating.

3. A pressure roller with an air venting structure for tire production according to claim 1, characterized in that: Each exhaust extrusion bearing (2) has at least one piston (4) corresponding to its inner surface. Several exhaust extrusion bearings (2) are arranged axially along the outer surface of the pressure roller body (1), and the axial end faces of adjacent exhaust extrusion bearings (2) are fitted together.

4. A pressure roller with an air venting structure for tire production according to claim 1, characterized in that: The limiting component (3) includes a limiting frame (31), the inner surface of which is in contact with the outer surface of the pressure roller body (1). Both ends of the limiting frame (31) have through-hole circular grooves (311). The inner surfaces of both circular grooves (311) have receiving grooves (312). The inner surfaces of both circular grooves (311) are movably fitted with locking rods (314). The two locking rods (314) are respectively located in the circular grooves (311). The inner surface of the roller body (1) is fitted with a return spring (317), and the two locking rods (314) are respectively fixedly fitted with moving plates (315) on the inner surface of the circular groove (311). The two moving plates (315) are respectively slidably fitted with the two receiving grooves (312). The two ends of the roller body (1) are provided with locking grooves (33). The corresponding ends of the two locking rods (314) pass through the two circular grooves (311) and extend into the locking grooves (33).

5. A pressure roller with an air venting structure for tire production according to claim 4, characterized in that: One end of the limiting frame (31) is equipped with a number of balls (32), and the balls (32) together fit against one of the exhaust extrusion bearings (2).

6. A pressure roller with an air venting structure for tire production according to claim 4, characterized in that: Two limiting blocks (316) are fixedly connected to the outer surfaces of the two movable plates (315), and the inner surfaces of the two receiving grooves (312) are provided with limiting grooves (313) that cooperate with the two limiting blocks (316).

7. A pressure roller with an air venting structure for tire production according to claim 4, characterized in that: Both ends of the two locking rods (314) are engraved with anti-slip texture.

8. A pressure roller with an air venting structure for tire production according to claim 4, characterized in that: One end of each of the two return springs (317) is fixedly connected to one side of the inner wall of each of the two receiving grooves (312), and one end of each of the two return springs (317) is fixedly connected to one end of each of the two moving plates (315).

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