Rubber pressure exhaust device for tread wing of tire line

Abstract

The utility model discloses a tire line tread wing rubber pressure exhaust device which comprises a lifting assembly, a width adjusting assembly, a guide rail assembly, two angle adjusting assemblies, two indentation roller assemblies and a pressure adjusting valve. Wherein the guide rail assembly is coupled to the lower portion of the lifting assembly and is configured to be lifted or lowered by the lifting assembly, the two angle adjusting assemblies are coupled to the two ends of the guide rail assembly respectively, each angle adjusting assembly is coupled with one creasing roller assembly, and the width adjusting assembly is coupled to the two angle adjusting assemblies. The width adjusting assembly is configured to adjust the distance between the width adjusting plates of the two angle adjusting assemblies so as to adjust the distance between the two indentation roller assemblies. By means of the device provided by the embodiment of the invention, the dents are generated on the tread wing rubber through the pressure exhaust device, air can be exhausted in the attaching process, and the attaching area of the tread and the tire side is increased due to the generation of the dents, so that the attaching effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the production equipment of all-steel tread line, and particularly relates to a wing rubber pressing and discharging device. BACKGROUND

[0002] With the rapid development of the automobile industry, the requirements for the tire industry are also gradually improved, and the process of forming the tire blank on the building machine is particularly important. The building machine combines the tread, the sidewall, the crown, the mold rubber, the carcass, etc. into the tire blank according to the process requirements. In the building process, the position where the tread and the sidewall are attached is the wing rubber of the tread. In order to optimize the attachment effect and produce high-quality tires, the tire factory also puts forward new requirements for the equipment manufacturers, that is, the wing rubber of the tread must have a notch.

[0003] Because the all-steel tread is relatively thick and hard after cooling, the above factors need to be considered comprehensively, and a reliable rubber pressing and discharging device is proposed. SUMMARY

[0004] The present application aims to solve at least one of the above problems, and provides a wing rubber pressing and discharging device.

[0005] To this end, some embodiments of the present application provide a tire line tread wing rubber pressing and discharging device, which comprises a lifting assembly, a width adjusting assembly, a guide rail assembly, two angle adjusting assemblies, two notch roller assemblies, and a pressure regulating valve; wherein the guide rail assembly is coupled below the lifting assembly and is configured to be lifted or lowered by the lifting assembly, the two angle adjusting assemblies are respectively coupled to the two ends of the guide rail assembly, each angle adjusting assembly is coupled to a notch roller assembly, the width adjusting assembly is coupled to the two angle adjusting assemblies, and the width adjusting assembly is configured to adjust the distance between the width adjusting plates of the two angle adjusting assemblies, so as to adjust the distance between the two notch roller assemblies.

[0006] In some embodiments, the lifting assembly comprises a portal frame and a lifting unit; the portal frame comprises a cross beam, and a first vertical beam and a second vertical beam connected to the two sides of the cross beam, respectively; the upper part of the lifting unit is mounted to the cross beam of the portal frame, and the lower part is coupled to the guide rail assembly.

[0007] In some embodiments, the lower part of the lifting unit is connected to the guide rail assembly, and the guide rail assembly comprises a mounting beam and a first guide rail pair and a second guide rail pair, the mounting beam is coupled to the first vertical beam of the portal frame through the first guide rail pair, and is coupled to the second vertical beam of the portal frame through the second guide rail pair, so that the mounting beam can move up and down along the first vertical beam and the second vertical beam.

[0008] In some embodiments, a first angle adjustment assembly and a second angle adjustment assembly are respectively connected to both ends of the transverse direction of the mounting beam; the first angle adjustment assembly and the second angle adjustment assembly have symmetrical structures.

[0009] In some embodiments, the first angle adjustment assembly or the second angle adjustment assembly comprises a lead screw, a copper nut, a double-ear ring mounting, a rotating ear shaft, a rotation center, a mounting bracket, a bearing assembly, and a rotating plate, the rotating plate is fixed below the width adjustment plate through the double-ear ring mounting, the rotating plate has only one degree of freedom of rotation; the lead screw is axially fixed below the bearing and the locking nut and the ear shaft mounting connection, the lead screw can freely rotate around the inner ring of the ear shaft mounting; the copper nut above the lead screw is rigidly connected with the rotating ear shaft and is installed on the ear shaft bracket mounting on the width adjustment plate.

[0010] In some embodiments, a first indentation roller assembly is installed on the longitudinal mounting plate of the first angle adjustment assembly, and a second indentation roller assembly is installed on the longitudinal mounting plate of the second angle adjustment assembly; the first indentation roller assembly and the second indentation roller assembly can have the same structure, including a fixed shaft, a bearing, a nesting piece, and an indentation roller arranged on the fixed shaft; and a positioning bolt is fixed on the indentation roller.

[0011] In some embodiments, the total length of the indentation roller is 25 mm, the indentation roller includes a plurality of indentation lines arranged circumferentially, each indentation line is assembled in the form of a 5 mm indentation piece, and the number of indentation pieces included in each indentation line of the indentation roller can be adjusted as needed.

[0012] In some embodiments, the width adjustment assembly is connected to the first lead screw mechanism of the guide rail assembly through a first connecting assembly, and is connected to the second lead screw mechanism of the guide rail assembly through a second connecting assembly, wherein the first lead screw mechanism is coupled to the width adjustment plate of the first angle adjustment assembly to adjust the width adjustment plate of the angle adjustment assembly.

[0013] In some embodiments, the width adjustment assembly adopts left and right adjusting lead screws; wherein each lead screw mechanism comprises a lead screw, a nut, a linear guide rail, and a hand wheel coupled to each other, the hand wheel rotates the lead screw, thereby driving the nut to move linearly on the linear guide rail, the nut and the width adjustment plate of the angle adjustment assembly are fixedly connected, thereby realizing the rotation structure of the hand wheel into the linear motion of the indentation roller.

[0014] In some embodiments, at least one brush roller assembly is coupled on the mounting beam between the two indentation roller assemblies, the brush roller in the brush roller assembly adopts a free roller mode, the brush roller assembly includes a bracket coupled on the mounting beam, a brush roller coupled downward on the brush roller by a cylinder and a guide assembly, and the cylinder is coupled with a pressure regulating valve.

[0015] The effects of the device provided by the present application include that the device provided by the embodiments of the present application produces indentations on the tread wing rubber by the air exhausting device, which not only helps to exhaust air during the bonding process, but also increases the bonding area of the tread and the sidewall, thereby improving the bonding effect.

[0016] The angle of the indentation roller assembly of the device provided by the present application is adjustable, and the distance between the two indentation roller assemblies is adjustable, so that more tire line treads can be adapted.

[0017] In some embodiments, the air exhausting device is mounted on the roller conveyor before the spray cooling device, at this time, the tread product has not been cooled by the cooling device and has a certain temperature, which is more conducive to the production of indentations, and the corresponding driving roller diameter under the indentation roller on the roller conveyor is increased accordingly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a tire line tread wing rubber air exhausting device according to an embodiment of the present application.

[0019] Figure 2 FIG. 2 is a structural schematic diagram of a lifting assembly and a guide rail assembly of a tire line tread wing rubber air exhausting device according to an embodiment of the present application.

[0020] Figure 3a FIG. 3 is a structural perspective schematic diagram of an angle adjusting assembly in a tire line tread wing rubber air exhausting device according to an embodiment of the present application;

[0021] Figure 3b FIG. 4 is a structural side view schematic diagram of an angle adjusting assembly in a tire line tread wing rubber air exhausting device according to an embodiment of the present application;

[0022] Figure 4a FIG. 5 is a structural perspective view of an indentation roller assembly in a tire line tread wing rubber air exhausting device according to an embodiment of the present application, viewed from a first angle.

[0023] Figure 4b FIG. 6 is a structural perspective view of an indentation roller assembly in a tire line tread wing rubber air exhausting device according to an embodiment of the present application, viewed from a second angle.

[0024] Figure 4c FIG. 7 is a sectional view of an indentation roller assembly in a tire line tread wing rubber air exhausting device according to an embodiment of the present application.

[0025] Figure 5 is a structural diagram of a width adjustment assembly in a tire line tread wing extrusion device according to an embodiment of the present application.

[0026] Figure 6 is a structural diagram of a tire line tread wing extrusion device according to another embodiment of the present application.

[0027] Figure 7 is a structural diagram of a brush roller assembly in a tire line tread wing extrusion device according to another embodiment of the present application.

[0028] Figure 8 is a diagram showing the position of a tire line tread wing extrusion device on a roller conveyor according to another embodiment of the present application. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be further described below with reference to the accompanying drawings.

[0030] As shown in Figure 1 , the tread wing extrusion device 100 mainly comprises a lifting assembly 10, a width adjustment assembly 20, a guide rail assembly 30, two angle adjustment assemblies, for example, a first angle adjustment assembly 40A and a second angle adjustment assembly 40B, two indentation roller assemblies, for example, a first indentation roller assembly 50A and a second indentation roller assembly 50B, and a pressure regulating valve 60. The guide rail assembly 30 is coupled below the lifting assembly 10 and can be lifted or lowered by the lifting assembly 10. The two angle adjustment assemblies are respectively coupled to the two ends of the guide rail assembly 30, and each angle adjustment assembly is coupled to one indentation roller assembly. The width adjustment assembly 20 is coupled to the two angle adjustment assemblies, and is configured to adjust the distance between the width adjustment plates of the two angle adjustment assemblies, thereby adjusting the distance between the two indentation roller assemblies.

[0031] The working principle of the tread wing extrusion device is as follows: when the material head passes, the lifting unit 12 of the lifting assembly 10 acts to lift the guide rail assembly 30, thereby lifting the components on the guide rail assembly 30, such as the first indentation roller assembly 50A and the second indentation roller assembly 50B, to avoid material blockage. After the material head passes, the lifting unit 12 acts again to press down the components as a whole, so that the indentation rollers of the first indentation roller assembly 50A and the second indentation roller assembly 50B press against the inclined surface of the tread wing rubber. By adjusting the control of the pressure regulating valve 60, the extrusion force of the two indentation roller assemblies on the wing rubber is adjusted, thereby achieving adjustable indentation depth.

[0032] Specifically, as shown in Figure 1 , Figure 2As shown, the lifting assembly 10 can include a portal frame 11 and a lifting unit 12. The portal frame 11 includes a cross beam 111, and a first vertical beam 112 and a second vertical beam 113 connected to the two sides of the cross beam 111 respectively. The cross beam 111, the first vertical beam 112 and the second vertical beam 113 can also be integrally formed. The lifting unit 12 is, for example, a pneumatic cylinder, and the upper part of the lifting unit 12 is mounted to the cross beam 111 of the portal frame 11, while the lower part is coupled to the guide rail assembly 30.

[0033] As described above, the lower part of the lifting unit 12 is connected to the guide rail assembly 30, which includes a mounting beam 31, and a first guide rail pair 32 and a second guide rail pair 33. The mounting beam 31 is coupled to the first vertical beam 112 of the portal frame 11 through the first guide rail pair 32, and is coupled to the second vertical beam 113 of the portal frame 11 through the second guide rail pair 33, so that the mounting beam 31 can move up and down along the first vertical beam 112 and the second vertical beam 113.

[0034] Since the cross section of the tread line is a range, there are various specifications, so the adjustable range of the indentation roller must cover all specifications, i.e. it needs to be adjustable in width and angle. The angle adjustment range needs to meet the maximum angle requirement, for example, 65°, and the minimum width is only 200mm, which requires that when the tread width is 200mm, the angle can be adjusted to 65°.

[0035] Therefore, the first angle adjustment assembly 40A and the second angle adjustment assembly 40B can be respectively connected at the two ends of the transverse direction of the mounting beam 31. The first angle adjustment assembly 40A and the second angle adjustment assembly 40B can have a symmetrical structure.

[0036] The first angle adjustment assembly 40A and the second angle adjustment assembly 40B adopt a left-right symmetrical design and respectively adjust the angle. Since the angle range is particularly large, when producing small specifications, the distance between the two sets of indentation rollers will be particularly small, so the structure of the indentation roller inside and the adjusting handle outside is adopted. Taking the first angle adjustment assembly 40A as an example, as shown in Figure 3a 、 Figure 3bAs shown, it includes width adjustment plate 41, screw rod 411, ear ring mounting 42, copper nut 48, rotating ear shaft 47, rotation center 415, bracket mounting 49, bearing assembly 45 and rotating plate 44, rotating plate 44 is fixed below the width adjustment plate 41 through double ear ring mounting 43, ear ring mounting 42 and double ear shaft mounting 43 are hinged connection, control rotating plate 44 can only swing around the rotation center 415 angle, one end of the screw rod 411 is free end, the other end is coupled to the bearing assembly 45 so that it can pivot on the longitudinal axis. When the handle of the screw rod 411 drives the screw rod 411 to rotate right, the length of the screw rod between the copper nut 48 and the ear shaft mounting 46 becomes larger, that is, the straight line length between the first rotation point 413 and the second rotation point 414 becomes larger, so that the first rotation point 413 will swing clockwise around the rotation center 415, and vice versa. The screw rod 411 below is connected with the ear shaft mounting 46 in the form of bearing 45 and locking nut 412, and is axially fixed, and the screw rod 411 can rotate freely around the inner ring of the ear shaft mounting 46. The copper nut 48 above the screw rod 411 is rigidly connected with the rotating ear shaft 47, and is mounted on the ear shaft bracket mounting 49 on the width adjustment plate 41. By rotating the screw rod 411, the rotating plate 44 can be rotated. Due to the limitation of installation space, pneumatic elements are used in many drive units here, which not only saves space but also saves a lot of processing cost.

[0037] The first indentation roller assembly 50A is mounted on the longitudinal mounting plate of the first angle adjustment assembly 40A, and the second indentation roller assembly 50B is mounted on the longitudinal mounting plate of the second angle adjustment assembly 40B. The first indentation roller assembly 50A and the second indentation roller assembly 50B can have the same structure, for example, as shown in FIG. 2. Figure 4a , Figure 4b 、 Figure 4cAs shown, the first indentation roller assembly 50A includes a fixed shaft 51, a bearing 52, a nesting piece 53 and an indentation roller 54 arranged on the fixed shaft. A positioning bolt 55 is also arranged on the indentation roller 54. The nesting piece 53 mainly plays a transition role. The nesting piece 53 is axially fixed to the fixed shaft 51 through the bearing 52, so that the nesting piece can rotate freely. According to requirements, the maximum length of the indentation can be 25 mm, and it can also be appropriately reduced during production according to the situation. For example, the total length of the indentation roller 54 is 25 mm, and the indentation roller includes a plurality of indentation lines arranged circumferentially. Each indentation line is assembled in the form of 5 indentation pieces 541 of 5 mm. The number of indentation pieces 541 included in each indentation line of the indentation roller 54 can also be adjusted as required. By controlling the size tolerance and behavior tolerance of the positioning bolt 55 hole position, the straightness of the indentation groove can be ensured. The indentation piece 541 is divided into pieces after overall machining. The overall machined indentation roller is uniformly distributed with four Φ8H7 circular holes on a Φ70±0.05mm circumference. The machining size of the positioning bolt fitting part is Φ8h6. The small fitting gap ensures that the tooth tips of the combined indentation pieces are collinear.

[0038] When the product passes through here, it has passed through several devices, so the center of the product may have deviated from the center of the production line. Therefore, the width adjusting assembly 20 is arranged to compensate for the overall deviation of the product. The width adjusting assembly 20 can be arranged in a structure that adjusts left and right respectively, rather than a symmetrical structure of left and right screws. In this way, the overall deviation of the product can be accommodated. Each screw mechanism, such as 21 or 22, can include a screw, a nut, a linear guide rail and a hand wheel. The hand wheel rotates the screw, thereby driving the nut to move linearly along the linear guide rail. The nut and the width adjusting plate of the angle adjusting assembly are fixedly connected, so that the rotation structure of the hand wheel is converted into the linear motion of the indentation roller, so as to adapt to products of different widths.

[0039] The overall structure of the width adjusting assembly 20 can be as shown in Figure 5 , which includes a first screw mechanism 21 connected to the guide rail assembly 30 through a first connecting assembly 23, and a second screw mechanism 22 connected to the guide rail assembly 30 through a second connecting assembly 24. The first screw mechanism 21 is coupled to the width adjusting plate 43 of the first angle adjusting assembly 40A to adjust the width adjusting plate of the angle adjusting assembly.

[0040] When the indentation roller assemblies 50A and 50B on both sides press on the wing rubber slope at the same time, two forces opposite to the center of the product will be generated. Since the steel tread is relatively thick, it is easy to cause the center of the tread to bulge and deform. Therefore, in other embodiments, the indentation roller assemblies 50A and 50B can be arranged to be movable along the guide rail assembly 30, as shown in Figure 6 , Figure 7As shown, at least one brush roller assembly 70 can be coupled on the mounting beam 31 between the two indentation roller assemblies, the brush roller 73 in the brush roller assembly 70 can be in the form of a free roller, for example, the brush roller assembly 70 can include a bracket 74 coupled on the mounting beam 31, the brush roller 73 coupled on the brush roller 73 by a cylinder 71 and a guide assembly 72, the cylinder 71 coupled with a pressure regulating valve 75. The brush roller 73 rotates with the tread band. The cylinder 71 is controlled by the pressure regulating valve 75 during the downward stroke, thereby controlling the extrusion force of the brush roller 73 on the product.

[0041] The indentation produced on the tread wing by the tread wing air venting device not only helps to vent air during the bonding process, but also increases the bonding area of the tread and the sidewall, thereby improving the bonding effect.

[0042] The tread wing air venting device 100 in the present application is installed on the roller conveyor 200 before the spray cooling device, as shown, at this time the tread product has not been cooled by the cooling device and has a certain temperature, which is more conducive to the production of indentation, the corresponding driving roller diameter under the indentation roller on the roller conveyor 200 is increased accordingly. Figure 8

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.​

Claims

1. A tire line tread wing extrusion venting apparatus characterized by; The device comprises a lifting assembly, a width adjusting assembly, a guide rail assembly, two angle adjusting assemblies, two indentation roller assemblies, and a pressure regulating valve; the guide rail assembly is coupled below the lifting assembly and is configured to be lifted or lowered by the lifting assembly; the two angle adjusting assemblies are coupled to the two ends of the guide rail assembly respectively; each angle adjusting assembly is coupled to an indentation roller assembly; the width adjusting assembly is coupled to the two angle adjusting assemblies; the width adjusting assembly is configured to adjust the distance between the width adjusting plates of the two angle adjusting assemblies so as to adjust the distance between the two indentation roller assemblies.

2. The tire line tread wing extrusion venting apparatus of claim 1, wherein; The lifting assembly comprises a portal frame and a lifting unit; the portal frame comprises a cross beam, and a first vertical beam and a second vertical beam connected to the two sides of the cross beam respectively; the upper part of the lifting unit is mounted on the cross beam of the portal frame, and the lower part is coupled to the guide rail assembly.

3. The tire line tread wing extrusion venting apparatus of claim 2, wherein; The lower part of the lifting unit is connected to the guide rail assembly; the guide rail assembly comprises a mounting beam and a first guide rail pair and a second guide rail pair; the mounting beam is coupled to the first vertical beam of the portal frame through the first guide rail pair, and is coupled to the second vertical beam of the portal frame through the second guide rail pair, so that the mounting beam can move up and down along the first vertical beam and the second vertical beam.

4. The tire line tread wing extrusion venting apparatus of claim 3, wherein; A first angle adjusting assembly and a second angle adjusting assembly are connected to the two ends of the mounting beam in the transverse direction respectively; the first angle adjusting assembly and the second angle adjusting assembly have symmetrical structures.

5. The tire line tread wing extrusion venting apparatus of claim 4, wherein; The first angle adjusting assembly or the second angle adjusting assembly comprises a lead screw, a brass nut, a double-ear ring mounting piece, a rotating ear shaft, a rotation center, a mounting bracket, a bearing assembly, and a rotating plate; the rotating plate is fixed below the width adjusting plate through the double-ear ring mounting piece; the rotating plate has only one degree of freedom of rotation; the lower part of the lead screw is axially fixed by connecting with the ear shaft mounting piece through a bearing and a locking nut; the lead screw can rotate freely around the inner ring of the ear shaft mounting piece; the brass nut above the lead screw is rigidly connected with the rotating ear shaft and is mounted on the ear shaft bracket mounting piece on the width adjusting plate.

6. The tire line tread wing extrusion venting apparatus of claim 5, wherein: A first indentation roller assembly is mounted on the longitudinal mounting plate of the first angle adjusting assembly, and a second indentation roller assembly is mounted on the longitudinal mounting plate of the second angle adjusting assembly; the first indentation roller assembly and the second indentation roller assembly can have the same structure, which comprises a fixed shaft, a bearing, a nesting piece, and an indentation roller provided on the fixed shaft; the indentation roller assembly further comprises a positioning bolt fixed on the indentation roller.

7. The tire line tread wing extrusion venting apparatus of claim 5, wherein: The total length of the indentation roller is 25 mm; the indentation roller comprises a plurality of indentation lines arranged in the circumferential direction; each indentation line is assembled in the form of an indentation sheet with a thickness of 5 mm; the number of indentation sheet pieces included in each indentation line of the indentation roller can be adjusted as needed.

8. The tire line tread wing extrusion venting apparatus of claim 5, wherein: The width adjusting assembly is connected to the first lead screw mechanism of the guide rail assembly through a first connecting assembly, and is connected to the second lead screw mechanism of the guide rail assembly through a second connecting assembly; the first lead screw mechanism is coupled to the width adjusting plate of the first angle adjusting assembly so as to adjust the width adjusting plate of the angle adjusting assembly.

9. The tire line tread wing extrusion venting apparatus of claim 7, wherein: The width adjusting assembly adopts left and right adjusting screw rods; each screw rod mechanism comprises a screw rod, a nut, a linear guide rail and a hand wheel which are coupled with each other, the hand wheel rotates the screw rod, thereby driving the nut to move linearly on the linear guide rail, the nut and the width adjusting plate of the angle adjusting assembly are fixedly connected, thereby realizing the rotation structure of the hand wheel into the linear motion of the indentation roller.

10. The tire line tread wing extrusion venting apparatus of claim 7, wherein: At least one brush roller assembly is coupled on the mounting beam between the two indentation roller assemblies, the brush roller in the brush roller assembly adopts a free roller mode, the brush roller assembly comprises a support coupled on the mounting beam, a brush roller coupled downward on the brush roller through a gas cylinder and a guide assembly, and the gas cylinder is coupled with a pressure regulating valve.

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