A follow-up cloth feeding device

Abstract

The present invention provides a follow-up cloth feeding device, which belongs to the technical field of curtain calendering production. The device is provided with a pneumatic clutch between the power source and the actuator, and utilizes the rapid conversion between the pneumatic clutch slip state and the running state to ensure that the curtain does not relax, always maintains tension, and prevents the curtain from sticking to the guide roller without time lag; and an overrunning clutch is provided between the power source and the actuator, so that the actuator can automatically switch to the free roller state according to the running state of the curtain, without adding extra external force to the curtain. The device described in the present invention can deliver the rubber-coated curtain to the subsequent station without time lag and extra external force when the rear traction device stops and the working state is converted, prevent the rubber-coated curtain from sticking to each working guide roller, and transport the rubber-coated curtain to the curling station.

Description

Technical Field

[0001] The invention belongs to the technical field of cord calendering production and relates to a follow-up cloth feeding device. Background Art

[0002] Steel wire (or fiber) cord calendering production line is a key equipment for tire manufacturers to produce all-steel or semi-steel radial tires. The steel wire (or fiber) cord calendering production line can evenly apply rubber on both sides of the steel wire (or fiber cloth) to produce rubber-coated cord.

[0003] In the process of producing products on the steel wire (or fiber) cord calendering production line, when the produced rubber cord fills up the reel of one station, the cord needs to be cut and rewound on the reel of another station. After the cord is cut, the rear traction device transports the cord downward at a certain speed. Since the cord is light in weight after being cut, and the hot rubber on the surface of the cord has a certain viscosity, if there is no cloth feeding device, the cord will stick to the guide roller of the rear traction device and cannot run according to the process set by the production process, and the entire production process will be interrupted. In view of the above problems, the present invention proposes a follow-up cloth feeding device. Summary of the invention

[0004] The purpose of the present invention is to design a follow-up cloth feeding device, in which a pneumatic clutch is arranged between the power element and the actuator, and the rapid conversion between the pneumatic clutch slip state and the running state is utilized to ensure that the curtain cloth does not relax, always maintains tension, and prevents the curtain cloth from sticking to the guide roller without time delay; at the same time, an overrunning clutch is arranged between the power element and the actuator, so that the actuator can automatically switch to the free roller state according to the running state of the curtain cloth (external conditions), without adding extra external force to the curtain cloth. The device can deliver the rubber-coated curtain cloth to the subsequent workstation without time delay and without adding extra external force when the rear traction device stops and the working state is converted, and prevents the rubber-coated curtain cloth from sticking to each working guide roller.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A follow-up cloth feeding device comprises a base 1, a brush roller Ⅰ2, a rubber roller 3, a sprocket and chain transmission pair Ⅰ4, a bracket 5, a guide rail 6, a cylinder Ⅰ7, a motor reducer 8, a V-belt transmission pair 9, a cylinder Ⅱ10, a pneumatic clutch 11, an overrunning clutch 12, a guide roller 13, a brush roller Ⅱ14, a sprocket and chain transmission pair Ⅱ15 and a fixed bracket and mounting fasteners 16.

[0007] For easy installation, all parts and components are installed on the base 1. The motor reducer 8, V-belt transmission pair 9, pneumatic clutch 11, overrunning clutch 12, and guide roller 13 are connected in sequence; both ends of the guide roller 13 are installed on the base 1 through fixed brackets and mounting fasteners 16. The brush roller II 14 is connected to the bottom of the guide roller 13 through a sprocket and chain transmission pair II 15, and contacts the guide roller 13 to prevent the curtain from sticking to the guide roller 13; the brush roller II 14 is connected to the cylinder I 7.

[0008] The rubber roller 3 and the guide roller 13 are arranged opposite to each other, and the curtain is located between the rubber roller 3 and the guide roller 13; the rubber roller 3 is driven by the motor reducer 8. The brush roller Ⅰ2 is connected to the bottom of the rubber roller 3 through the sprocket and chain transmission pair Ⅰ4, and contacts with the rubber roller 3 to prevent the curtain from sticking to the rubber roller 3. Both ends of the rubber roller 3 and the brush roller Ⅰ2 are installed on the guide rail 6 through the bracket 5 to form a movable whole, which is connected to the cylinder Ⅱ10.

[0009] When the curtain works normally, the motor reducer 8 drives the guide roller 13 to run at a certain speed through the V-belt transmission pair 9, the pneumatic clutch 11 and the overrunning clutch 12, and the guide roller 13 drives the brush roller Ⅱ14 to run through the sprocket and chain transmission pair Ⅱ15. At this time, the cylinder Ⅰ7 retracts, pulling the brush roller Ⅱ14 away from the running curtain; the rubber roller 3, the brush roller Ⅰ2, the bracket 5 and the sprocket and chain transmission pair Ⅰ4 on the guide rail 6 are pulled by the cylinder Ⅱ10, so that the rubber roller 3 is away from the curtain and is in a non-operating state.

[0010] When the curtain needs to be cut, the curling station needs to be changed, and the rear traction device stops running, the cylinder rod of cylinder II 10 extends to push the rubber roller 3, brush roller I2, bracket 5, sprocket and chain transmission pair I4 on the guide rail 6 to move toward the curtain, so that the rubber roller 3 and brush roller I2 are in contact with the curtain, and the rubber roller 3 and guide roller 13 clamp the curtain from both sides; at this time, brush roller II 14 is also in contact with the curtain under the push of cylinder I 7. Since the rear traction device stops running, the curtain is in a stopped state. Although the motor reducer 8 is in a running state, it cannot drag the curtain downward. The pneumatic clutch 11 is in a slip state. The rubber roller 3, guide roller 13, brush roller I2 and brush roller II 14 are all in a stopped state, but give the curtain a continuous downward pulling force.

[0011] When the curtain is cut and the curling station is replaced, the rear traction runs at the head-in speed, and the stopped curtain runs downward. Once the curtain is running, the slip state of the pneumatic clutch 11 is immediately converted to the running state, and the motor reducer 8 drives the rubber roller 3 and the guide roller 13 to run and deliver the curtain downward. Due to the rapid conversion of the two working states of the pneumatic clutch 11, the curtain between the rear traction and the cloth feeding device can always be in a tensioned state, and the curtain will not be loosened and adhere to the guide roller of the traction device. In order to prevent the rubber-coated curtain from adhering to the rubber roller 3 and the guide roller 13, when the rubber roller 3 and the guide roller 13 are running, the brush roller Ⅰ2 and the brush roller Ⅱ14 are driven by the sprocket and chain transmission pair Ⅰ4 and the sprocket and chain transmission pair Ⅱ15 respectively, and drag the curtain downward.

[0012] When the curtain fabric completes the entry action, a large tension is formed between the rear traction device and the subsequent curling station. The curtain fabric will not stick to the guide rollers. When the curtain fabric runs at high speed, the curtain fabric speed is greater than the running speed of the guide rail 6 driven by the motor reducer 8. Due to the setting of the overrunning clutch 12, the guide roller 6 is separated from the power of the motor reducer 8 and enters a free working state softly. At this time, the cylinder rod of the cylinder II 10 retracts, pulling the rubber roller 3, brush roller I 2, bracket 5 and sprocket and chain transmission pair I 4 on the guide roller 6 away from the curtain fabric, and the brush roller II 14 is also pulled back by the cylinder I 7 and does not contact the curtain fabric.

[0013] Beneficial effects of the present invention: The follow-up cloth feeding device described in the present invention is suitable for steel cord or fiber cord calendering production lines, can quickly follow and adapt to the running speed of the rear traction device, prevent the rubber-coated cord from sticking to the rear traction device, and transport the rubber-coated cord to the curling station. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the follow-up cloth feeding device of the present invention.

[0015] In the figure: 1 base; 2 brush roller Ⅰ; 3 rubber roller; 4 sprocket and chain transmission pair Ⅰ; 5 bracket; 6 guide rail; 7 cylinder Ⅰ; 8 motor reducer; 9 V-belt transmission pair; 10 cylinder Ⅱ; 11 pneumatic clutch; 12 overrunning clutch; 13 guide roller; 14 brush roller Ⅱ; 15. Sprocket and chain transmission pair Ⅱ; 16 fixed bracket and installation fasteners. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention is described in detail below in conjunction with the technical scheme and the accompanying drawings.

[0017] like Figure 1As shown, a follow-up cloth feeding device includes a base 1, a brush roller Ⅰ2, a rubber roller 3, a sprocket and chain transmission pair Ⅰ4, a bracket 5, a guide rail 6, a cylinder Ⅰ7, a motor reducer 8, a V-belt transmission pair 9, a cylinder Ⅱ10, a pneumatic clutch 11, an overrunning clutch 12, a guide roller 13, a brush roller Ⅱ14, a sprocket and chain transmission pair Ⅱ15 and a fixed bracket and mounting fasteners 16.

[0018] All parts and components are installed on the base 1. The motor reducer 8 drives the guide roller 13 to run at a certain speed through the V-belt transmission pair 9, the pneumatic clutch 10 and the overrunning clutch 12. The guide roller 13 drives the brush roller Ⅱ14 to run through the sprocket and chain transmission pair Ⅱ15; the cylinder Ⅰ7 pushes or pulls the brush roller Ⅱ14 away from or in contact with the running curtain. The rubber roller 3 is arranged opposite to the guide roller 13, and the curtain is located between the rubber roller 3 and the guide roller 13; the brush roller Ⅰ2 is connected to the bottom of the rubber roller 3 through the sprocket and chain transmission pair Ⅰ4, and contacts the rubber roller 3. Both ends of the rubber roller 3 and the brush roller Ⅰ2 are installed on the guide rail 6 through the bracket 5, forming a movable whole, which is pushed and moved by the cylinder Ⅱ10 to make the rubber roller 3 contact or away from the curtain.

[0019] The device described in the present invention has a pneumatic clutch between the power element and the actuator, and utilizes the rapid conversion of the clutch slip state and the operating state to ensure that the curtain does not relax, always maintains tension, and prevents the curtain from sticking to the guide roller without time delay; since an overrunning clutch is provided between the power element and the actuator, the actuator can automatically switch to the free roller state according to the operating state of the curtain (external conditions), without adding unnecessary external force to the curtain; since a brush roller is provided on the guide roller, the curtain is prevented from sticking to the guide roller in contact with it.

Claims

1. A follow-up cloth feeding device, characterized in that: The device comprises a base (1), a brush roller I (2), a rubber roller (3), a sprocket and chain transmission pair I (4), a bracket (5), a guide rail (6), a cylinder I (7), a motor reducer (8), a V-belt transmission pair (9), a cylinder II (10), a pneumatic clutch (11), an overrunning clutch (12), a guide roller (13), a brush roller II (14), a sprocket and chain transmission pair II (15), a fixing bracket and a mounting fastener (16); The base (1) is used to support and install all parts; the motor reducer (8), V-belt transmission pair (9), pneumatic clutch (11), overrunning clutch (12), and guide roller (13) are connected in sequence; both ends of the guide roller (13) are installed on the base (1) through fixed brackets and mounting fasteners (16); the brush roller II (14) is connected to the bottom of the guide roller (13) through a sprocket and a chain transmission pair II (15), and contacts the guide roller (13) to prevent the curtain from sticking to the guide roller (13); the brush roller II (14) is connected to the cylinder I (7), and is driven by the cylinder I (7) to stay away from or contact the curtain; The rubber roller (3) and the guide roller (13) are arranged opposite to each other, and the curtain is located between the rubber roller (3) and the guide roller (13); the brush roller I (2) is connected to the bottom of the rubber roller (3) through a sprocket and a chain transmission pair I (4), and is in contact with the rubber roller (3) to prevent the curtain from sticking to the rubber roller (3); both ends of the rubber roller (3) and the brush roller I (2) are installed on the guide rail (6) through a bracket (5), forming an integral body that moves along the guide rail, and the integral body is connected to the cylinder II (10), and the rubber roller (3) and the brush roller I (2) are driven by the cylinder II (10) to move away from or contact the curtain; When the curtain fabric needs to be cut and the curling station is changed, the rear traction device stops running, and the cylinder rod of the cylinder II (10) extends to push the rubber roller (3), brush roller I (2), bracket (5) and the overall structure composed of the sprocket and chain transmission pair I (4) on the guide rail (6) to move toward the curtain fabric, so that the rubber roller (3) and brush roller I (2) are in contact with the curtain fabric, and the rubber roller (3) and the guide roller (13) clamp the curtain fabric from both sides; at this time, the brush roller II (14) is also in contact with the curtain fabric under the push of the cylinder I (7). Since the rear traction device stops running, the curtain fabric is in a stopped state. Although the motor reducer (8) is in a running state, it cannot drag the curtain fabric downward. The pneumatic clutch (11) is in a slip state. The rubber roller (3), guide roller (13), brush roller I (2) and brush roller II (14) are all in a stopped state, but a continuous downward pulling force is applied to the curtain fabric. When the curtain is cut and the curling station is replaced, the rear traction runs at the head-in speed, and the stopped curtain runs downward. Once the curtain runs, the slip state of the pneumatic clutch (11) is immediately converted into the running state, and the motor reducer (8) drives the rubber roller (3) and the guide roller (13) to run, and the curtain is delivered downward. Due to the rapid conversion of the two working states of the pneumatic clutch (11), the curtain between the rear traction and the cloth feeding device can always be in a tensioned state, and the curtain will not be loosened and adhere to the guide roller of the traction device.

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