Transmission belt cylindrical cloth cover dipping equipment

Abstract

The present invention provides a device for processing rubber dipping of a cylindrical cloth sleeve of a transmission belt, which is used for dipping the cloth sleeve stretched in the length direction, and comprises a rubber dipping tank, a pressure roller arranged in the rubber dipping tank, and a supporting device arranged in the cloth sleeve to stretch the cloth sleeve. The supporting device is at least partially placed in the rubber dipping tank. During rubber dipping, the cloth sleeve is stretched by the supporting device, and the glue easily flows into the inside of the cloth sleeve through the opened holes, so that the inner surface of the cloth sleeve is adhered to sufficient glue, thereby improving the performance of the cloth inside the cloth sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of transmission belts, in particular to a rubber dipping treatment device for producing a cylindrical cloth sleeve used for producing transmission belts. Background Art

[0002] Transmission belts are widely used in the field of power transmission. Early transmission belts were made of rubber materials only. With the development of society, in order to meet the various performance requirements of transmission belts, fabrics are covered on the outer surface of the transmission belts to obtain corresponding characteristics. Initially, the fabrics on the transmission belts, such as knitted fabrics and canvas, were cut from the entire piece of cloth. During production, they were wrapped around so that the two joints overlapped for a section or were processed and then sewn into a tube shape to cover the outer surface of the transmission belt, such as the reinforcing cloth on the back or teeth of a multi-V belt or synchronous belt.

[0003] With the development, the requirements for transmission belts are getting higher and higher. In order to avoid the unevenness of the joints or the exposed seams affecting the performance of the transmission belts, the jointless cylindrical cloth sleeves are becoming more and more popular in the production of transmission belts. As we all know, the fabrics used on the transmission belts must be pre-impregnated with glue. However, at present, the cylindrical cloth sleeves are treated in the same way as the sheet fabrics, and only the traction equipment is set at the outlet end. The traction equipment pulls the cloth sleeve in the length direction at one end of the cloth sleeve. During the movement, the cloth sleeve is always in a flat shape, and the inner surfaces fit each other. At the same time, the cloth sleeve is stretched only in the length direction, causing the cloth sleeve to shrink in the width direction, so that the holes on the cloth sleeve are reduced or completely closed, and the glue cannot flow through the holes on the cloth sleeve. At the same time, because the inner surfaces fit each other, the glue cannot enter the cloth sleeve and flow inside the cloth sleeve, resulting in that there is basically no glue attached to the inner surface of the cylindrical cloth sleeve, which seriously affects the quality of the transmission belt. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a transmission belt cylindrical cloth sleeve dipping treatment equipment.

[0005] The transmission belt cylindrical cloth sleeve glue dipping processing equipment is used for dipping the cloth sleeve stretched in the length direction. The equipment includes a glue dipping tank, a pressure roller arranged in the glue dipping tank, and a supporting device arranged in the cloth sleeve to open the cloth sleeve. The supporting device is at least partially placed in the glue dipping tank.

[0006] Preferably, it also includes a reeling roller located on one side of the pressing roller and a guide roller located on the other side of the pressing roller, wherein the reeling roller and the guide roller are higher than the pressing roller and are arranged parallel to the pressing roller.

[0007] Preferably, the supporting device is placed between the unwinding roller and the pressing roller.

[0008] Preferably, the supporting device is a frame structure, and the frame structure includes a cross beam and a longitudinal beam.

[0009] Preferably, the longitudinal beam comprises a left longitudinal beam, a right longitudinal beam and a middle longitudinal beam, the left longitudinal beam and the right longitudinal beam are symmetrical structures, and the middle longitudinal beam at least partially protrudes out of the plane where the left longitudinal beam and the right longitudinal beam are located.

[0010] Preferably, the crossbeam is an adjustable crossbeam.

[0011] Preferably, the supporting device further comprises a pulley, and the pulley is rotatably fixed to the outer side of the longitudinal beam.

[0012] Preferably, the device further comprises a feed control device and a support beam mounted on the fixing device, wherein the feed control device is assembled to the support beam.

[0013] Preferably, the feed control device comprises a feed wheel and a motor, wherein the motor drives the feed wheel to rotate, and the motor is mounted on a support beam.

[0014] Preferably, the feed wheel comprises a left feed wheel and a right feed wheel, and the distance between the left feed wheel and the right feed wheel is adjustable.

[0015] Preferably, the surface of the feed wheel has a groove, and the pulley contacts the groove and rotates in the groove.

[0016] Preferably, the front end of the supporting device is an arc-shaped structure.

[0017] Alternatively, the supporting device may have an elliptical or annular outer contour.

[0018] By using the transmission belt cylindrical cloth sleeve dipping treatment equipment provided by the present invention, when the cloth sleeve is dipped in glue, the cloth sleeve in the dipping tank is stretched open due to being mounted on the supporting device, and the glue can easily flow into the inside of the cloth sleeve, so that the inner and outer surfaces of the cloth sleeve are fully impregnated with the glue, thereby improving the glue adhesion performance of the inner side of the cloth sleeve, and further improving the performance of the transmission belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the dipping treatment equipment of the present invention;

[0020] Figure 2 is a schematic diagram of the supporting device;

[0021] 1. Cloth cover, 2. Unwinding roller, 3. Glue dipping tank, 4. Pressing roller, 5. Guide roller, 6. Support device, 71. Left longitudinal beam, 72. Right longitudinal beam, 73. Middle longitudinal beam, 81. Upper cross beam, 82. Middle cross beam, 83. Lower cross beam, 9. Pulley, 10. Feed wheel, 11. Support beam, 12. Motor, 13. Unwinding roller bracket. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] The invention discloses a rubber dipping treatment device for a transmission belt cylindrical cloth sleeve, which is used for dipping a cloth sleeve 1 stretched in the length direction. The device comprises a rubber dipping tank 3, a pressure roller 4 arranged on the two side walls of the rubber dipping tank 3, and a support device 6 at least partially placed in the rubber dipping tank 3. The support device 6 is placed in the cloth sleeve 1 to separate the inner surfaces of the cloth sleeve 1 from each other. At the same time, the support device 6 has a certain supporting effect on the cloth sleeve 1 in the width direction of the cloth sleeve, and the cloth sleeve is stretched. One end of the cloth sleeve 1 is pulled by an external force to move forward along the length direction of the cloth sleeve 1, and the cloth sleeve 1 is stretched in the length direction. Due to the effect of the support device 6, the holes on the surface of the stretched cloth sleeve 1 always remain in an open or expanded state, thereby avoiding the shrinkage of the holes, and the inner surfaces of the cloth sleeve 1 are separated from each other. During production, glue is placed in the rubber dipping tank 3, and the glue can flow into the interior of the cloth sleeve 1 through the opened or expanded holes and flow inside the cloth sleeve 1 to fully impregnate the inner surface of the cloth sleeve 1.

[0024] like Figure 1 , Figure 2 As shown, the baking equipment, traction equipment, etc. are omitted, and only some equipment related to the present invention is shown. In order to achieve industrial mass production, the equipment also includes an unwinding roller 2 wound with multiple layers of cloth cover 1 located on one side of the pressure roller 4, and the unwinding roller 2 can be rotatably mounted on the unwinding roller bracket 13, and the guide roller 5 is located on the other side of the pressure roller 4 away from the unwinding roller 2. The unwinding roller 2 and the guide roller 5 are higher than the pressure roller 4 and are arranged parallel to the axial direction of the pressure roller 4. The support device 6 is placed between the unwinding roller 2 and the pressure roller 4, and at least the lower part is placed in the dipping tank 3. During production, the cloth cover 1 is pulled down from the unwinding roller 2, unfolded, and sleeved on the outside of the support device 6, through the support device 6, into the dipping tank 3, and then through the lower side of the pressure roller 4, and then upward through the guide roller 5 into the drying equipment. The drying equipment is also provided with a traction device to pull the cloth cover 1 forward in the length direction of the cloth cover. The guide roller 5 can be rotatably fixed to other devices, which may also be a bracket at the front end of the baking equipment.

[0025] In order to improve the impregnation efficiency of the cloth cover 1 , the pressing roller 4 is preferably arranged near the bottom of the dipping tank 3 .

[0026] The unwinding roller 2, the pressure roller 4, and the guide roller 5 of this specific embodiment are as follows: Figure 1As shown, the cloth sleeve 1 is distributed in a triangle, and passes through the unwinding roller 2, the supporting device 6, the pressing roller 4, and the guide roller 5 in sequence. The unwinding roller 2, the pressing roller 4 and the guide roller 5 are placed axially parallel, and the unwinding roller 2 and the guide roller 5 are higher than the pressing roller 4, and are not on the same plane as the two, forming a V-shaped distribution. However, if there are two pressing rollers 4, a trapezoidal structure may also be formed. When the cloth sleeve 1 is dipped in glue, since the supporting device 6 is placed inside the cloth sleeve 1, the inner surfaces of the cloth sleeve 1 are separated from each other. At the same time, the supporting device 6 has a certain supporting effect on the cloth sleeve 1 in the width direction of the cloth sleeve, and the cloth sleeve 1 is stretched. The traction device pulls the cloth sleeve forward in the length direction of the cloth sleeve 1. Due to the effect of the supporting device 6, the holes on the surface of the stretched cloth sleeve 1 always remain in an open or expanded state, and the glue smoothly passes through the holes into the inside of the cloth sleeve, and the inner surface of the cloth sleeve is fully impregnated. Therefore, the inner and outer surfaces of the treated cloth sleeve 1 can be attached with a certain amount of glue, which can meet various performance requirements of the cloth sleeve 1, such as adhesion, corrosion resistance or high temperature resistance.

[0027] like Figure 2 As shown, the support device 6 is a structure with a certain thickness and width, such as a frame structure composed of a crossbeam and a longitudinal beam, and the crossbeam and the longitudinal beam can be connected by welding, riveting, bolting, etc. or a combination of multiple methods. Specifically, the crossbeam can include an upper crossbeam 81, a lower crossbeam 83, and can also include a middle crossbeam 82, and the longitudinal beams include a left longitudinal beam 71, a right longitudinal beam 72, and can also include a middle longitudinal beam 73. The longitudinal beam has a certain thickness or curvature to achieve the purpose of opening the cloth cover. Preferably, the left and right longitudinal beams are arranged symmetrically along the center of the bracket, and the middle longitudinal beam 73 is connected to the upper and lower crossbeams. Preferably, the middle longitudinal beam 73 at least partially protrudes from the plane where the left longitudinal beam 71 and the right longitudinal beam 72 are located, thereby forming a larger spatial structure to achieve the purpose of opening the cloth cover. The upper part of the support device 6 can be made into an arc structure, on the one hand, the cloth cover can be smoothly put on, and on the other hand, it can prevent the cloth cover from being scratched.

[0028] The preferred support device 6 also includes pulleys 9, which are respectively arranged on the outside of the left and right longitudinal beams, preferably at the widest position on the outside. The cloth cover slides downward through the pulleys 9 to prevent the cloth cover from being scratched by the support device 6, so that the cloth cover can smoothly enter the dipping tank 3. One or more pulleys 9 are arranged on the left and right sides, and two pulleys are arranged on the left and right sides in this embodiment. The crossbeam can be set as an adjustable structure, such as a telescopic type, or a sliding connection type, etc., so as to facilitate adjusting the width between the left and right longitudinal beams according to the width of different cloth covers and the amount of dipping, so as to achieve the purpose of being applicable to cloth covers of different widths and dipping amounts, and optimize the number of support devices.

[0029] The processing equipment also includes a feed control device, which is used to control the speed of the cloth sleeve, preferably maintaining the same speed as the traction device (not shown), to prevent the cloth sleeve from being too long and only being pulled forward by the traction device, causing the front end of the cloth sleeve to be subjected to excessive tension, so that the tension of the cloth sleeve is in a stable state, ensuring the uniformity of the glue dipping of the cloth sleeve 1. The feed control device includes a feed wheel 10, a motor 12 for controlling the feed wheel, and a support beam 11 for supporting the motor 12 and connecting the motor 12. The support beam 11 can be installed on a fixing device, which is not limited, and can be used to fix the overall position of the feed control device, or it can be fixed to the unwinding roller bracket 13 of the unwinding roller 2.

[0030] During the dipping process, the traction device pulls the cloth cover forward, and the feed wheel 10 is driven by a motor and cooperates with the pulley 9, so that the cloth cover 1 passes between the feed wheel 10 and the pulley 9. The feed wheel can be a groove wheel with a groove on the surface, and the pulley 9 partially extends into the groove of the feed wheel 10. The feed wheel 10 and the pulley 9 have a certain clamping effect on the cloth. The speed of the feed wheel 10 is controlled by the motor 12 to control the movement speed and tension of the cloth cover 1. At the same time, since the feed wheel 10 is stuck between the pulleys on the top, bottom, left and right, it can play the role of fixing the support device 6. Preferably, the distance between the left and right feed wheels can be adjusted according to different tensions and cloth widths.

[0031] The outer contour of the replaceable supporting device 6 can also be made into an elliptical or annular frame, and the outer periphery of the frame is a smooth structure to prevent the cloth cover from being scratched or stuck, while playing the role of stretching the cloth cover. The supporting device 6 can be placed only inside the cloth cover 1 without being fixed, in the limited space generated by the interaction between the unwinding roller, the cloth cover and the pressure roller.

[0032] All descriptions of positional relationships such as left, right, front, and back in this document are based on the placement of the drawings and are not limitations of the present invention.

Claims

1. A transmission belt cylindrical cloth sleeve dipping treatment device, used for dipping a cloth sleeve stretched in the length direction, the device comprising a dipping tank (3), a pressure roller (4) arranged in the dipping tank (3), characterized in that: The invention also comprises a support device (6) arranged in the cloth sleeve to open the cloth sleeve, wherein at least a part of the support device (6) is placed in the dipping tank (3), and the support device (6) is a frame structure, wherein the frame structure comprises a crossbeam and a longitudinal beam, wherein the longitudinal beam comprises a left longitudinal beam (71) and a right longitudinal beam (72), wherein the crossbeam comprises an upper crossbeam 81 and a lower crossbeam 83, and wherein the support device (6) further comprises a pulley (9), wherein the pulley (9) is rotatably fixed to the outer side of the longitudinal beam.

2. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 1, characterized in that: It also comprises an unwinding roller (2) located on one side of the pressure roller (4) and a guide roller (5) located on the other side of the pressure roller (4), wherein the unwinding roller (2) and the guide roller (5) are higher than the pressure roller (4) and are arranged parallel to the pressure roller (4).

3. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 2, characterized in that: The supporting device (6) is placed between the unwinding roller (2) and the pressing roller (4).

4. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 3, characterized in that: The longitudinal beams further include a middle longitudinal beam (73); the left longitudinal beam (71) and the right longitudinal beam (72) are symmetrical structures; the middle longitudinal beam (73) at least partially protrudes out of the plane where the left longitudinal beam (71) and the right longitudinal beam (72) are located.

5. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 4, characterized in that: The crossbeam is an adjustable crossbeam.

6. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 5, characterized in that: It also includes a feed control device and a support beam (11) mounted on the fixing device, wherein the feed control device is assembled on the support beam (11).

7. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 6, characterized in that: The feed control device comprises a feed wheel (10) and a motor (12), wherein the motor (12) drives the feed wheel (10) to rotate, and the motor (12) is supported and mounted on a support beam (11).

8. The transmission belt cylindrical cloth cover dipping treatment equipment according to claim 7, characterized in that: The feed wheel (10) comprises a left feed wheel and a right feed wheel, and the distance between the left feed wheel and the right feed wheel is adjustable.

9. The transmission belt cylindrical cloth cover glue dipping treatment equipment according to claim 8, characterized in that: The surface of the feed wheel (10) has a groove, and the pulley (9) is in contact with the groove and rotates in the groove.

10. The transmission belt cylindrical cloth cover dipping treatment equipment according to claim 1, characterized in that: The front end of the supporting device (6) is an arc-shaped structure.

11. The transmission belt cylindrical cloth cover dipping treatment equipment according to claim 1, characterized in that: The supporting device has an elliptical or annular outer contour.

Images