Device for reducing the thickness of the edge of a tire rubber component

Abstract

The present invention provides a device for thinning the edge thickness of a tire rubber component. The device can thin the edge of the component, and can adjust the angle of an upper pressing roller so that an inclined edge of the component can also be thinned. The device is suitable for thinning the edges of components with various inclination angles, so that components with edge thickness exceeding the standard can meet the standard.

Description

Technical Field

[0001] The present invention relates to the field of tires, and in particular to a device for reducing the thickness of the edge of a tire rubber component. Background Art

[0002] The edge thickness of the extruded parts in the tire industry is easy to break due to uneven rubber mixing or too fast production line speed, which leads to excessive edge thickness of the parts, resulting in deep grooves at the end points of the tire blank mouth, the end points of the apex rubber, the end points of the cushion rubber and even the end points of the tread edge, increasing the quality risk of the finished product wear-resistant rubber being folded and side defects, and causing the tire blank surface to be uneven in the circumferential direction; such as Figure 1 As shown, since the thickness c of the edges of most parts is different and tilted, and the tilt angles a of the edges of different parts are different, it is not convenient to process. Summary of the invention

[0003] In order to solve the above-mentioned problem, the present invention provides a device for thinning the edge thickness of a tire rubber component, which can thin the edge of the component and can adjust the angle of the upper pressing roller so that the inclined edge of the component can also be thinned. It is also suitable for thinning the edges of components with various inclination angles, so that components with edge thickness exceeding the standard can meet the standard.

[0004] The technical solution of the present invention is: a device for thinning the edge thickness of a tire rubber component, comprising a lower pressing roller and an upper pressing roller located above the lower pressing roller, the lower pressing roller being a heating roller, the center of the upper pressing roller being rotatably connected to a central axis I, and the central axis I being connected to an angle adjustment device for adjusting the angle of the central axis I.

[0005] The angle adjustment device includes a bracket, a connecting frame and an angle adjustment screw. A connecting shaft is provided at one end of the connecting frame in the length direction. The connecting shaft is fixedly connected to the connecting block on the central axis I. The connecting block is connected to the central axis I through a bearing I. The connecting shaft is rotatably connected to the bracket. A slide groove is provided in the length direction of the connecting frame. A slider is provided in the slide groove. The slider is rotatably connected to the nut I on the angle adjustment screw. Both ends of the screw rod I of the angle adjustment screw rod are installed on the bracket through bearings. An adjusting handwheel I is fixed on a section of the screw rod I of the screw rod 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, and the other end is connected to a central axis I through a retractable universal coupling; the central axis II of the lower pressure roller is connected to the support frame through a bearing seat, and a driving wheel is also connected to the central axis II, which is driven to rotate by a power device, and the driving wheel is meshed and connected to the driven wheel, or is connected by a belt or a chain.

[0007] It also includes a lifting device for driving the bracket to lift up and down, the lifting device is a cylinder, a hydraulic cylinder or an electric push rod, the bracket is fixedly connected to the cylinder push rod, the hydraulic push rod of the hydraulic cylinder or the electric push rod, and the power device of the cylinder, hydraulic cylinder or electric push rod is installed on the support frame through a mounting plate; Or it includes a left-right adjustment device for driving the bracket to move left-right, and the left-right adjustment device is a left-right walking screw rod; the bracket is fixedly connected with nuts II on the left-right walking screw rod.

[0008] It includes both a lifting device for driving the bracket to lift and lower, and a left-right adjustment device for driving the bracket to move left and right; the lifting device is a cylinder, a hydraulic cylinder or an electric push rod, and the left-right adjustment device is a left-right walking screw rod; the bracket 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, hydraulic cylinder or electric push rod is installed on the support frame through a mounting plate, and the mounting plate is limited up and down, the mounting plate is fixedly connected to the nut II on the left and right walking screw rods, the two ends of the screw rod II of the left and right walking screw rods are connected to the support frame through bearings, and an adjusting handwheel II is installed at one end of the screw rod II.

[0009] Two upper pressing rollers are arranged above the lower pressing roller, and the central axis I of each upper pressing roller is respectively connected to an angle adjusting device for adjusting the angle of the central axis I.

[0010] The roller surface of the upper pressing roller is a side surface of a cylinder or a side surface of a truncated cone.

[0011] An extrusion production line includes an extruder, an extrusion roller bed, and the above-mentioned device for thinning the edge thickness of tire rubber components is located between the extruder outlet and the extrusion roller bed. The rubber components extruded through the extruder outlet pass between a lower pressure roller and an upper pressure roller and then enter the extrusion roller bed.

[0012] The beneficial effects of the present invention are as follows: the present application provides a device for thinning the edge thickness of a tire rubber component. Because the rubber material is thermoplastic, when the temperature of the heating roller is high, the component passes between the heating roller and the upper pressing roller, and the upper pressing roller presses on the edge of the component. The edge of the component can be squeezed and thinned by extrusion, thereby achieving the purpose of reducing the edge thickness of the component; in particular, the angle adjustment device adjusts the angle between the central axis I of the upper pressing roller and the edge of the component, so that the upper pressing roller can be suitable for thinning the edges of components with various inclination angles, and the edges of components with excessive thickness can be thinned, so that the components with excessive edge thickness meet the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of tire rubber components.

[0014] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 1 .

[0015] Figure 3The structure of the present invention is schematically shown in FIG. Figure 2 .

[0016] Figure 4 The structure of the present invention is schematically shown in FIG. Figure 3 .

[0017] Figure 5 It is a schematic diagram of the connection structure of the angle adjustment device of the present invention.

[0018] Figure 6 The device for thinning the edge thickness of the tire rubber component of the present invention is added to the position in the production line.

[0019] Figure numerals: lower pressure roller 1, upper pressure roller 2, connecting frame 3, slide groove 30, slider 31, angle adjustment screw 4, nut I 40, screw rod I 41, adjusting hand wheel I 42, connecting shaft 5, connecting block 50, bearing I 6, bracket 7, support frame 8, rotating shaft 9, driven wheel 10, telescopic universal coupling 11, center shaft II 12, driving wheel 13, motor 14, lifting device 15, left and right adjustment device 16, mounting plate 17, nut II 18, adjusting hand wheel II 19, center shaft I 20, screw rod II 21, reducer 22, extrusion roller bed 23, receiving roller bed 24, device for thinning the edge thickness of tire rubber parts 25, extruder 26. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings and specific embodiments to clearly and completely describe the technical solution of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art in this field can make some non-essential improvements and adjustments based on the content of the present invention described below. In the present invention, unless otherwise clearly specified and limited, the technical terms used in this application should be the common meanings understood by the technical personnel of the present invention.

[0021] like Figure 2-Figure 6 As shown, a device for thinning the edge thickness of a tire rubber component comprises a lower pressing roller 1 and an upper pressing roller 2. The lower pressing roller 1 is a heating roller. The center of the upper pressing roller 2 is rotatably connected to a central axis Ⅰ20. The central axis Ⅰ20 is connected to an angle adjustment device for adjusting the angle of the central axis Ⅰ20.

[0022] The lower pressing roller 1 is a heating roller, such as an electric heating roller, a heat-conducting oil heating roller, or an electromagnetic heating roller. The temperature of the lower pressing roller can be controlled by a temperature control device.

[0023] Because the rubber material is thermoplastic, when the temperature of the heating roller is high, the component passes between the heating roller and the upper pressing roller, and the upper pressing roller presses on the edge of the component. The edge of the component can be squeezed and thinned by extrusion, thereby achieving the purpose of reducing the edge thickness of the component; in particular, the angle adjustment device adjusts the angle between the central axis Ⅰ20 of the upper pressing roller 2 and the edge of the component, so that the upper pressing roller can be suitable for thinning the edges of components with various inclination angles, and can thin the edges of components with excessive thickness, so that components with excessive edge thickness meet the standard.

[0024] The angle adjustment device includes a bracket 7, a connecting frame 3 and an angle adjustment screw rod 4. A connecting shaft 5 is provided at one end of the connecting frame 3 in the length direction. The connecting shaft 5 is fixedly connected to a connecting block 50 on the central axis I. The connecting block 50 is connected to the central axis I through a bearing I6. The connecting shaft 5 is rotatably connected to the bracket 7. A slide groove 30 is provided in the length direction of the connecting frame 3. A slider 31 is provided in the slide groove 30. The slider 31 is rotatably connected to a nut I40 on the angle adjustment screw rod 4. Both ends of the screw rod I41 of the angle adjustment screw rod 4 are installed on the bracket 7 through bearings. An adjusting hand wheel I42 is fixed on a section of the screw rod I of the screw rod I. Therefore, by rotating the adjusting hand wheel I42, the nut I is driven to translate on the screw rod I, so that the inclination angle of the connecting frame 3 can be adjusted, thereby adjusting the angle of the central axis I.

[0025] The device for reducing the thickness of the edge of the tire rubber component also includes a support frame 8, which is connected to a rotating shaft 9 through a bearing seat, one end of the rotating shaft 9 is connected to a driven wheel 10, and the other end is connected to a central shaft I 20 through a retractable universal coupling 11; the central shaft II 12 of the lower pressure roller 1 is connected to the support frame 8 through a bearing seat, and a driving wheel 13 is also connected to the central shaft II 12, which is driven to rotate by a power device, and the driving wheel 13 is meshed and connected with the driven wheel 10, or connected by a belt or chain. Thus, the rotation speed of the lower pressure roller and the upper pressure roller can be adjusted. The power device can be a motor.

[0026] Specifically, the central shaft II 12 is also connected to the shaft of the reducer 22 through a coupling, and the reducer 22 is connected to the motor 14; finally, the motor 14 drives the driving wheel 13 to rotate, and the driving wheel drives the driven wheel to rotate.

[0027] Before and after the angle adjustment of the central axis Ⅰ20 of the upper pressure roller is performed, the setting of the telescopic universal coupling 11 can adapt to such adjustment as much as possible and can drive the upper pressure roller to rotate.

[0028] The device for thinning the edge thickness of the tire rubber component also includes a lifting device 15 that drives the bracket to rise and fall. The lifting device is a cylinder, a hydraulic cylinder or an electric push rod. The bracket 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, hydraulic cylinder or electric push rod is installed on the support frame 8 through the mounting plate 17; the cylinder, hydraulic cylinder or electric push rod can drive the bracket to rise and fall.

[0029] The device for thinning the edge thickness of the tire rubber component includes a left-right adjustment device 16 that drives the bracket to move left-right. The left-right adjustment device is a left-right walking screw; the bracket is fixedly connected to the nut II18 on the left-right walking screw. The left-right adjustment device can drive the bracket 7 to move left-right. The two ends of the screw II21 of the left-right walking screw are connected to the support frame 8 through bearings. An adjustment handwheel II19 is installed at one end of the screw II21. By turning the adjustment handwheel II19, the nut II18 is driven to move horizontally on the screw II21, so that the bracket 7 can be adjusted to move left-right.

[0030] By setting the lifting device, the bracket 7 is raised and lowered, so that the upper pressure roller can adapt to the upper pressure roller. Figure 1 Thinning of the edges of components with different thickness c.

[0031] By setting the left and right adjustment device, the bracket 7 is moved left and right, thereby moving the upper pressure roller left and right, so that the upper pressure roller can adapt to the Figure 1 Thinning of the edges of components with different widths B.

[0032] The device for thinning the edge thickness of the tire rubber component includes both a lifting device 15 for driving the bracket to lift and lower, and a left and right adjusting device 16 for driving the bracket to move left and right; the lifting device is a cylinder, a hydraulic cylinder or an electric push rod, and the left and right adjusting device is a left and right walking screw rod; the bracket 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, hydraulic cylinder or electric push rod is installed on the support frame 8 through a mounting plate, and the mounting plate 17 is limited up and down, the mounting plate 17 is fixedly connected to the nut II 18 on the left and right walking screw rods, the two ends of the screw rod II 21 of the left and right walking screw rods are connected to the support frame 8 through bearings, and an adjusting hand wheel II 19 is installed at one end of the screw rod II 21. By rotating the adjusting hand wheel II 19, the nut II 18 is driven to translate on the screw rod II 21, thereby driving the cylinder, hydraulic cylinder or electric push rod to move left and right, thereby driving the bracket 7 to move left and right. Thus, the air cylinder, hydraulic cylinder or electric push rod can drive the bracket to move up and down. In addition, the nut II 18 can translate on the screw rod II 21 to drive the air cylinder, hydraulic cylinder or electric push rod to move left and right, thereby driving the bracket 7 to move left and right.

[0033] By setting the lifting device and the left and right adjustment device, the bracket 7 can be lifted and lowered and moved left and right, so that the upper pressing roller can be lifted and lowered and moved left and right, so that the upper pressing roller can adapt to the thinning of the edges of components with different thicknesses and widths.

[0034] Two upper pressing rollers 2 are arranged above the lower pressing roller 1 , and the central axis I of each upper pressing roller is respectively connected to an angle adjusting device for adjusting the angle of the central axis I.

[0035] The roller surface of the upper pressing roller 2 is a cylindrical side surface or a truncated cone side surface.

[0036] An extrusion production line includes an extruder 26, an extrusion roller bed 23, and the above-mentioned device for thinning the edge thickness of the tire rubber component 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.

[0037] In the existing process, after the extruder 26 extrude the component, the receiving roller bed 24 receives the component extruded by the extruder, and then directly enters the subsequent extrusion process extrusion roller bed 23. The device 25 for thinning the edge thickness of the tire rubber component of the present application can be arranged before the receiving roller bed 24 and the extrusion roller bed 23 of the extrusion process, so that the extruded component of the extruder is first thinned at the edge, and then enters the extrusion roller bed 23 of the extrusion process. Since the receiving roller bed 24 is a structure that can swing up and down, the state diagram drawn in the figure is swung to the bottom.

[0038] The above are only preferred embodiments of the present invention, not all embodiments. The protection scope of the present invention is not limited thereto. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention. It should be pointed out that for those skilled in the art and any technician familiar with the technical field, without departing from the overall concept of the present invention and the spirit of the principle of the present invention, the technical solution and its inventive concept of the present invention are equivalently replaced or changed, and several changes and improvements are made, which should also be regarded as the protection scope of the present invention.

Claims

1. A device for reducing the thickness of the edge of a tire rubber component, characterized in that: The invention comprises a lower pressing roller (1) and an upper pressing roller (2) located above the lower pressing roller (1), wherein the lower pressing roller (1) is a heating roller, and the center of the upper pressing roller (2) is rotatably connected to a central axis I (20), and the central axis I (20) is connected to an angle adjustment device for adjusting the angle of the central axis I (20).

2. The device for reducing the thickness of the edge of a tire rubber component according to claim 1, characterized in that: The angle adjustment device comprises a bracket (7), a connecting frame (3) and an angle adjustment screw rod (4). A connecting shaft (5) is provided at one end of the connecting frame (3) in the length direction. The connecting shaft (5) is fixedly connected to a connecting block (50) on a central axis I. The connecting block (50) is connected to the central axis I via a bearing I (6). The connecting shaft (5) is rotatably connected to the bracket (7). A slide groove (30) is provided on the connecting frame (3) in the length direction. A slider (31) is provided in the slide groove (30). The slider (31) is rotatably connected to a nut I (40) on the angle adjustment screw rod (4). Both ends of a screw rod I (41) of the angle adjustment screw rod (4) are mounted on the bracket (7) via bearings. An adjusting hand wheel I (42) is fixed to a first section of the screw rod I of the screw rod I.

3. The device for reducing the thickness of the edge 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 a driven wheel (10), and the other end is connected to a central shaft I (20) via a retractable universal coupling (11); a central shaft II (12) of the lower pressure roller (1) is connected to the support frame (8) via a bearing seat, and a driving wheel (13) is also connected to the central shaft II (12), and the driving wheel (13) is driven to rotate by a power device, and the driving wheel (13) is meshedly connected to the driven wheel (10), or connected via a belt or a chain.

4. The device for reducing the thickness of the edge of a tire rubber component according to claim 2, characterized in that: It also includes a lifting device (15) for driving the bracket to lift up and down, the lifting device is a cylinder, a hydraulic cylinder or an electric push rod, the bracket (7) is fixedly connected to the cylinder push rod, the hydraulic push rod of the hydraulic cylinder or the electric push rod, and the power device of the cylinder, hydraulic cylinder or electric push rod is installed on the support frame (8) through a mounting plate (17); Alternatively, the device comprises a left-right adjustment device (16) for driving the bracket to move left-right, wherein the left-right adjustment device is a left-right traveling screw rod; the bracket is fixedly connected to the nut II (18) on the left-right traveling screw rod.

5. The device for reducing the thickness of the edge of a tire rubber component according to claim 2, characterized in that: The invention comprises a lifting device (15) for driving the bracket to lift and lower, and a left-right adjustment device (16) for driving the bracket to move left-right; the lifting device is a cylinder, a hydraulic cylinder or an electric push rod, and the left-right adjustment device is a left-right walking screw rod; the bracket (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 a mounting plate, and the mounting plate (17) is limited up and down, the mounting plate (17) is fixedly connected to the nut II (18) on the left-right walking screw rod, and the two ends of the screw rod II (21) of the left-right walking screw rod are connected to the support frame (8) through bearings, and an adjusting hand wheel II (19) is installed at one end of the screw rod II (21).

6. The device for reducing the thickness of the edge of a tire rubber component according to claim 2, characterized in that: Two upper pressing rollers (2) are arranged above the lower pressing roller (1), and the central axis I of each upper pressing roller (2) is respectively connected to an angle adjustment device for adjusting the angle of the central axis I.

7. The device for reducing the thickness of the edge of a tire rubber component according to claim 2, characterized in that: The roller surface of the upper pressure roller (2) is a side surface of a cylinder or a side surface of a truncated cone.

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

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