Device for thinning edge thickness of tire rubber part and extrusion production line

Abstract

According to the device for thinning the edge thickness of the tire rubber component and the extrusion production line, due to the fact that the rubber material has thermoplasticity, when the temperature of the heating roller is high, the component passes through the position between the heating roller and the upper pressing roller, the upper pressing roller is pressed on the edge of the component, and the edge of the component can be extruded to be thinned in an extrusion mode; therefore, the purpose of reducing the edge thickness of the component is achieved. Particularly, the angle adjusting device adjusts the angle between the center shaft I of the upper pressing roller and the edge of the part, so that the upper pressing roller can be suitable for thinning the edge of the part with various inclination angles, the edge of the part with the thickness exceeding the standard is thinned, and the part with the edge thickness exceeding the standard reaches the standard.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tire field especially relates to a device and extrusion production line that extrude thin tire rubber part edge thickness. BACKGROUND

[0002] The edge thickness of the extrusion part in the tire industry, due to uneven mixing of the rubber compound or too fast production line speed, causes the edge of the extrusion part to be prone to edge breakage, which in turn causes the edge thickness of the part to exceed the standard, resulting in deep grooves at the bead end, the apex end, the cushion end, and even the edge end of the tread, increasing the quality risk of the finished product wear-resistant rubber being folded or missing on the side, and causing the surface of the tire blank to be uneven in the circumferential direction. Figure 1 As shown, and because the edge thickness c of most parts is not uniform, there is an inclination, and the inclination angle a of the edge of different parts is not uniform, which is not convenient to handle. SUMMARY

[0003] To solve the above problems, the utility model provides a device and extrusion production line that extrude thin tire rubber part edge thickness, which can extrude thin the edge of the part, and can adjust the angle of the upper press roller, so that the edge of the part with inclination can also be extruded thin, and it is suitable for extruding thin the edge of parts with various inclination angles, so that the parts with excessive edge thickness meet the standard.

[0004] The technical scheme of the utility model is: a device for extruding thin the edge thickness of a tire rubber part, comprising a lower press roller and an upper press roller located above the lower press roller, the lower press roller being a heated roller, the center of the upper press roller being rotatably connected to a center shaft I, and the center shaft I being connected to an angle adjusting device for adjusting the angle of the center shaft I.

[0005] The angle adjusting device comprises a support, a connecting frame, and an angle adjusting screw, one end of the connecting frame in the length direction is provided with a connecting shaft, the connecting shaft is fixedly connected to a connecting block on the center shaft I, the connecting block is connected to the center shaft I through a bearing I, the connecting shaft is rotatably connected to the support, a sliding groove is provided on the connecting frame in the length direction, a sliding block is provided in the sliding groove, the sliding block is rotatably connected to a nut I on the angle adjusting screw, the screw rod I of the angle adjusting screw is installed on the support through bearings at both ends, and the screw rod I of the screw I is fixedly connected to an adjusting handwheel I.

[0006] The support frame is connected to a rotating shaft through a bearing seat, one end of the rotating shaft is connected to a driven wheel, the other end is connected to the center shaft I through a telescopic universal coupling; the center shaft II of the lower press roller is connected to the support frame through a bearing seat, the center shaft II is also connected to a driving wheel, the driving wheel is driven to rotate by a power device, and the driving wheel is meshingly connected to the driven wheel or connected through a belt or a chain.

[0007] The lifting device for lifting the support is a cylinder, a hydraulic cylinder or an electric push rod, the support is fixedly connected to a push rod of the cylinder, a hydraulic push rod of the hydraulic cylinder or the electric push rod, and a power device of the cylinder, the hydraulic cylinder or the electric push rod is installed on the support through a mounting plate.

[0008] The left-right adjusting device for moving the support leftward and rightward is a left-right walking screw rod.

[0009] The lifting device for lifting the support is a cylinder, a hydraulic cylinder or an electric push rod, the left-right adjusting device is a left-right walking screw rod, the support is fixedly connected to a push rod of the cylinder, a hydraulic push rod of the hydraulic cylinder or the electric push rod, a power device of the cylinder, the hydraulic cylinder or the electric push rod is installed on the support through a mounting plate, the mounting plate is limited upward and downward, the mounting plate is fixedly connected to a nut II on the left-right walking screw rod, screw rods II of the left-right walking screw rod are connected to the support through bearings at two ends, and an adjusting hand wheel II is installed at one end of the screw rod II.

[0010] The upper pressing roller is provided with two upper pressing rollers, and the central shaft I of each upper pressing roller is connected with an angle adjusting device for adjusting the angle of the central shaft I.

[0011] The roller surface of the upper pressing roller is a cylindrical side surface or a conical frustum side surface.

[0012] The pressing-out production line comprises an extruder, a pressing-out roller bed and the device for pressing the edge thickness of the rubber component of the thin tire, which is located between the outlet of the extruder and the pressing-out roller bed.

[0013] The device for pressing the edge thickness of the rubber component of the thin tire and the pressing-out production line have the following beneficial effects: since the rubber material has thermoplasticity, when the temperature of the heating roller is high, the component passes between the heating roller and the upper pressing roller, the upper pressing roller presses the edge of the component, the edge of the component can be pressed and thinned in the form of extrusion, so that the edge thickness of the component is reduced; especially, the angle adjusting device adjusts the angle between the central shaft I of the upper pressing roller and the edge of the component, so that the upper pressing roller is suitable for pressing the edges of components with various inclination angles, the edges of the components with excessive thickness are pressed, and the components with the edge thickness exceeding the standard are qualified. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of a structure of a tire rubber component.

[0015] Figure 2 is a schematic view of a structure of the utility model Figure 1 .

[0016] Figure 3 is a structural schematic of the utility model Figure 2 .

[0017] Figure 4 is a structural schematic of the utility model Figure 3 .

[0018] Figure 5 is a connecting structure schematic of the angle adjusting device of the utility model.

[0019] Figure 6 is the position of the device for compressing the edge thickness of the tire rubber component added in the production line.

[0020] Reference signs: lower pressing roller 1, upper pressing roller 2, connecting frame 3, sliding groove 30, sliding block 31, angle adjusting screw rod 4, nut I 40, screw rod I 41, adjusting hand wheel I 42, connecting shaft 5, connecting block 50, bearing I 6, support 7, supporting frame 8, rotating shaft 9, driven wheel 10, telescopic universal coupling 11, central shaft II 12, driving wheel 13, motor 14, lifting device 15, left-right adjusting device 16, mounting plate 17, nut II 18, adjusting hand wheel II 19, central shaft I 20, screw rod II 21, speed reducer 22, pressing roller bed 23, receiving roller bed 24, device for compressing the edge thickness of the tire rubber component 25, extruder 26. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in combination with the drawings and specific embodiments, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and cannot be understood as limiting the protection scope of the utility model, and skilled persons in the art can make some non-essential improvements and adjustments according to the content of the utility model. In the utility model, unless otherwise explicitly specified and limited, the technical terms used in the application should be understood as the usual meaning understood by the technical personnel described in the utility model.

[0022] As Figures 2-6 shown, a device for compressing the edge thickness of a tire rubber component, comprising a lower pressing roller 1 and an upper pressing roller 2, the lower pressing roller 1 is a heating roller, and the center of the upper pressing roller 2 is rotatably connected with a central shaft I 20, and the central shaft I 20 is connected with an angle adjusting device for adjusting the angle of the central shaft I 20.

[0023] The lower pressing roller 1 is a heating roller, which can be an electric heating roller, a heat conduction oil heating roller or an electromagnetic heating roller. The temperature of the lower pressing roller can be controlled by a temperature control device.

[0024] Because the rubber compound has thermoplasticity, when the heating roller temperature is high, the part passes between the heating roller and the upper pressing roller, and the upper pressing roller is pressed on the part edge, so that the part edge is extruded and thinned in the form of extrusion, thereby achieving the purpose of reducing the part edge thickness; especially, the angle adjusting device adjusts the angle between the center shaft I 20 of the upper pressing roller 2 and the part edge, so that the upper pressing roller is suitable for the pressing and thinning of the part edges with various inclination angles, and the part edges with excessive thickness are pressed and thinned, so that the part edges with excessive thickness meet the standards.

[0025] The angle adjusting device comprises a support 7, a connecting frame 3 and an angle adjusting screw rod 4, one end of the connecting frame 3 in the length direction is provided with a connecting shaft 5, the connecting shaft 5 is fixedly connected with a connecting block 50 on the center shaft I, the connecting block 50 is connected with the center shaft I through a bearing I 6, the connecting shaft 5 is rotatably connected with the support 7, a sliding groove 30 is arranged on the connecting frame 3 in the length direction, a sliding block 31 is arranged in the sliding groove 30, the sliding block 31 is rotatably connected with a nut I 40 on the angle adjusting screw rod 4, screw rods I 41 of the angle adjusting screw rod 4 are installed on the support 7 through bearings, and an adjusting hand wheel I 42 is fixedly arranged on one section of the screw rod I of the screw rod I. Therefore, the adjusting hand wheel I 42 can be rotated to drive the nut I to translate on the screw rod I, so that the inclination angle of the connecting frame 3 can be adjusted, and the angle of the center shaft I can be adjusted.

[0026] The device for pressing and thinning the edge thickness of the rubber part of the tire further comprises a support frame 8, the support frame is connected with a rotating shaft 9 through a bearing seat, one end of the rotating shaft 9 is connected with a driven wheel 10, and the other end is connected with the center shaft I 20 through a telescopic universal coupling 11; the center shaft II 12 of the lower pressing roller 1 is connected with the support frame 8 through a bearing seat, the center shaft II 12 is further connected with a driving wheel 13, the driving wheel 13 is driven to rotate through a power device, and the driving wheel 13 is meshingly connected with the driven wheel 10 or connected through a belt or a chain. Therefore, the rotating speeds of the lower pressing roller and the upper pressing roller can be adjusted. The power device can be an electric motor.

[0027] Specifically, the center shaft II 12 is further connected with a speed reducer 22 shaft through a coupling, and the speed reducer 22 is connected with an electric motor 14; finally, the electric motor 14 drives the driving wheel 13 to rotate, and the driving wheel drives the driven wheel to rotate.

[0028] The telescopic universal coupling 11 can adapt to the angle adjustment of the center shaft I 20 of the upper pressing roller as much as possible and drive the upper pressing roller to rotate before and after the angle adjustment of the center shaft I 20 of the upper pressing roller.

[0029] The device for pressing and thinning the edge thickness of the rubber part of the tire further comprises a lifting device 15 for driving the support frame to lift, the lifting device is a pneumatic cylinder, a hydraulic cylinder or an electric push rod, the support 7 is fixedly connected with the pneumatic cylinder push rod, the hydraulic cylinder hydraulic push rod or the electric push rod, and a power device of the pneumatic cylinder, the hydraulic cylinder or the electric push rod is installed on the support frame 8 through a mounting plate 17; the pneumatic cylinder, the hydraulic cylinder or the electric push rod can drive the support frame to lift.

[0030] The device for thinning the edge thickness of the rubber part of the tire comprises left-right adjusting device 16 for moving the support left and right, which is a left-right walking screw rod; the support is fixedly connected with nut II 18 on the left-right walking screw rod. The left-right adjusting device can move the support 7 left and right. The screw rod II 21 of the left-right walking screw rod is connected at both ends with the support frame 8 through bearings, and one end of the screw rod II 21 is provided with adjusting hand wheel II 19. By rotating the adjusting hand wheel II 19, the nut II 18 is translated on the screw rod II 21, so that the support 7 can be adjusted to move left and right.

[0031] By setting the lifting device, the support 7 is lifted, so that the upper compression roller can be adapted to the thinning of the edge of the part with different thickness c. Figure 1

[0032] By setting the left-right adjusting device, the support 7 is moved left and right, so that the upper compression roller is moved left and right, which can make the upper compression roller adapt to the thinning of the edge of the part with different width B. Figure 1

[0033] The device for thinning the edge thickness of the rubber part of the tire comprises lifting device 15 for lifting the support, and left-right adjusting device 16 for moving the support left and right; the lifting device is a pneumatic cylinder, a hydraulic cylinder or an electric push rod, and the left-right adjusting device is a left-right walking screw rod; the support 7 is fixedly connected with the pneumatic cylinder push rod, the hydraulic cylinder hydraulic push rod or the electric push rod, and the power device of the pneumatic cylinder, the hydraulic cylinder or the electric push rod is installed on the support frame 8 through the mounting plate, and the mounting plate 17 is limited up and down, the mounting plate 17 is fixedly connected with nut II 18 on the left-right walking screw rod, the screw rod II 21 of the left-right walking screw rod is connected at both ends with the support frame 8 through bearings, and one end of the screw rod II 21 is provided with adjusting hand wheel II 19. By rotating the adjusting hand wheel II 19, the nut II 18 is translated on the screw rod II 21, so that the pneumatic cylinder, the hydraulic cylinder or the electric push rod can be moved left and right, thereby moving the support 7 left and right. Thus, the pneumatic cylinder, the hydraulic cylinder or the electric push rod can lift the support, and in addition, by translating the nut II 18 on the screw rod II 21, the pneumatic cylinder, the hydraulic cylinder or the electric push rod can be moved left and right, thereby moving the support 7 left and right.

[0034] By setting the lifting device and the left-right adjusting device, the support 7 can be lifted and moved left and right, so that the upper compression roller can be lifted and moved left and right, which can make the upper compression roller adapt to the thinning of the edge of the part with different thickness and different width.

[0035] The upper side of the lower compression roller 1 is provided with two upper compression rollers 2, and the central shaft I of each upper compression roller is connected with angle adjusting device for adjusting the angle of the central shaft I.

[0036] ​​The roll surface of the upper press roller 2 is a cylindrical side surface or a conical frustum side surface.

[0037] A press-out production line comprises an extruder 26, a press-out roller bed 23 and the device for reducing the edge thickness of the rubber part of the tire as described above, which is located between the outlet of the extruder 26 and the press-out roller bed 23. The rubber part extruded through the outlet of the extruder 26 passes between the lower press roller 1 and the upper press roller 2, and then enters the press-out roller bed 23.

[0038] In the prior process, after the part is extruded by the extruder 26, the take-up roller bed 24 takes up the part extruded by the extruder, and then directly enters the press-out roller bed 23 of the subsequent press-out process. The device for reducing the edge thickness of the rubber part of the tire 25 of the present application can be arranged before the take-up roller bed 24 and the press-out roller bed 23 of the press-out process, so that the part extruded by the extruder first passes through the edge thickness reduction, and then enters the press-out roller bed 23 of the press-out process. Since the take-up roller bed 24 is a structure that can swing up and down, the state diagram shown in the figure is the state diagram of swinging to the lower side.

[0039] The above only describes preferred embodiments of the present application, and is not all embodiments. The protection scope of the present application is not limited thereto, and each technical feature of the above-described embodiments can be combined arbitrarily. In order to make the description simple, each technical feature in the above-described embodiments is not described in all possible combinations, however, as long as the combination of technical features does not contradict or cannot be realized, it should be considered as the scope of the present application. When the combination of technical solutions contradicts or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application. It should be noted that, for those skilled in the art and any person skilled in the art, according to the technical solutions and the application concept of the present application, equivalent replacement or changes can be made without departing from the overall concept of the present application and the spirit of the principle of the present application. If some changes and improvements are made, these should also be considered as the protection scope of the present application.

Claims

1. A device for thinning the edge thickness of a tire rubber component, characterized in that: It includes a lower pressure roller (1) and an upper pressure roller (2) located above the lower pressure roller (1). The lower pressure roller (1) is a heating roller. The center of the upper pressure roller (2) is rotatably connected to a central shaft I (20). The central shaft I (20) is connected to an angle adjustment device that adjusts the angle of the central shaft I (20).

2. The apparatus for thinning the edge thickness of a tire rubber component according to claim 1, characterized in that: The angle adjustment device includes a bracket (7), a connecting frame (3), and an angle adjustment screw (4). One end of the connecting frame (3) in the length direction is provided with a connecting shaft (5). The connecting shaft (5) is fixedly connected to the connecting block (50) on the central shaft I. The connecting block (50) is connected to the central shaft I through a bearing I (6). The connecting shaft (5) is rotatably connected to the bracket (7). A sliding groove (30) is provided in the length direction on the connecting frame (3). A slider (31) is provided in the sliding groove (30). The slider (31) is rotatably connected to the nut I (40) on the angle adjustment screw (4). The two ends of the screw I (41) of the angle adjustment screw (4) are mounted on the bracket (7) through bearings. An adjustment handwheel I (42) is fixed on one end of the screw I of the screw I.

3. The apparatus for thinning the edge thickness of a tire rubber component according to claim 1, characterized in that: The support frame is connected to a rotating shaft (9) via a bearing seat. One end of the rotating shaft (9) is connected to the driven wheel (10), and the other end is connected to the central shaft I (20) via a telescopic universal coupling (11). The central shaft II (12) of the lower pressure roller (1) is connected to the support frame (8) via a bearing seat. The central shaft II (12) is also connected to a driving wheel (13). The driving wheel (13) is driven to rotate by a power device. The driving wheel (13) is meshed with the driven wheel (10) or connected by a belt or chain.

4. The apparatus for thinning the edge thickness of a tire rubber component according to claim 2, characterized in that: It also includes a lifting device (15) that drives the support to rise and fall. The lifting device is a cylinder, a hydraulic cylinder or an electric push rod. The support (7) is fixedly connected to the cylinder push rod, the hydraulic push rod of the hydraulic cylinder or the electric push rod. The power device of the cylinder, the hydraulic cylinder or the electric push rod is installed on the support frame (8) through the mounting plate (17). Alternatively, it may include a left-right adjustment device (16) that drives the support to move left and right, the left-right adjustment device being a left-right traveling screw; the support is fixedly connected to the nut II (18) on the left-right traveling screw.

5. The apparatus for thinning the edge thickness of a tire rubber component according to claim 2, characterized in that: It includes both a lifting device (15) that drives the support to rise and fall, and a left and right adjustment device (16) that drives the support to move left and right. The lifting device is a cylinder, a hydraulic cylinder or an electric push rod, and the left and right adjustment device is a left and right travel screw. The support (7) is fixedly connected to the cylinder push rod, the hydraulic push rod of the hydraulic cylinder or the electric push rod. The power device of the cylinder, the hydraulic cylinder or the electric push rod is installed on the support frame (8) through the mounting plate and limits the upper and lower positions of the mounting plate (17). The mounting plate (17) is fixedly connected to the nut II (18) on the left and right travel screw. The two ends of the screw II (21) of the left and right travel screw are connected to the support frame (8) through bearings. One end of the screw II (21) is equipped with an adjustment handwheel II (19).

6. The apparatus for thinning the edge thickness of a tire rubber component according to claim 2, characterized in that: Two upper pressure rollers (2) are provided above the lower pressure roller (1), and each upper pressure roller (2) has an angle adjustment device connected to the central shaft I to adjust the angle of the central shaft I.

7. The apparatus for thinning the edge thickness of a tire rubber component according to claim 2, characterized in that: The roller surface of the upper pressure roller (2) is either the side of a cylinder or the side of a frustum conical.

8. An extrusion production line, characterized in that: Includes an extruder (26) and an extrusion roller bed (23). The device for thinning the edge thickness of the tire rubber component as described in any one of claims 1-7 is located between the outlet of the extruder (26) and the extrusion roller bed (23). The rubber component extruded through the outlet of the extruder (26) passes between the lower pressure roller (1) and the upper pressure roller (2) and then enters the extrusion roller bed (23).

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