Brake device for large chuck of bobbin spindle of bobbin winder

Abstract

A brake device for a large chuck of a bobbin spindle of a bobbin winder is used in the field of textile equipment. The brake pad is sleeved in the brake seat, the brake ring and the shell are connected into a whole and then connected with a shaft at one end of the shaft bearing, and the inner conical surface of the rear end of the brake pad is matched with the outer conical surface of the front end of the brake pad; the bearing with the shaft is sleeved in the bearing tube seat, and the gasket connected with the other end part of the bearing with the shaft is sleeved in the bearing tube seat; an inner hole of the bearing tube seat is of a step structure, the bearing tube seat is divided into two cavities through the inner wall arranged on the boss, the first spring is arranged in the cavity in the front end of the bearing tube seat and installed between the gasket and the inner wall of the bearing tube seat, the second spring is arranged in the cavity in the rear end of the bearing tube seat, and the bearing tube seat is sleeved with the second support. The front end face of the bearing tube seat abuts against the end face of the brake seat. The device is fast in braking, can keep stable operation of equipment for a long time, can effectively prolong the service life of the equipment, improve the product quality and the production efficiency, and reduces the maintenance cost of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of textile equipment, and in particular to a braking device for a large chuck of a bobbin winder spindle. Background Art

[0002] At present, the braking device for the large chuck of the spindle of the AC338 Schlafhorst automatic winder is composed of main components such as a brake ring, a brake shaft, a brake pad, and a brake seat. Among them, the brake ring and the brake seat are made of aluminum alloy, while the brake pad is made of hard bakelite. During the production process of the spindle, when the yarn suddenly breaks, compressed air enters the brake seat to form a compression chamber, pushing the brake pad on the brake shaft into contact with the brake ring, and braking the spindle under the action of instantaneous frictional force. However, for a long time, due to the instantaneous hard moving contact between the axially moving brake ring and the hard bakelite brake pad, mutual friction occurs, and the inner wall of the brake ring is severely worn by the surface of the brake pad. The hard bakelite brake pad and the aluminum alloy brake ring will grind out black powder, which can seriously contaminate the cheese, and the braking effect is poor. This kind of brake pad is easy to be damaged and usually must be replaced every one to three months, with a short service life. Moreover, it has a very large destructive effect on the aluminum alloy brake ring and brake seat, and needs to be replaced frequently. As a result, about twenty sets of brake rings, brake pads, and brake seats need to be replaced for each machine per month, and the annual maintenance cost is nearly 100,000 yuan. This not only increases the equipment maintenance cost, but also seriously affects the production efficiency and product quality, and increases the labor intensity of equipment maintenance personnel. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a braking device for a large chuck of a bobbin winder spindle, so as to achieve the purpose of fast braking speed, improve product quality and production efficiency, and extend the service life of the braking device.

[0004] To achieve the above object of the invention, the brake pad of the present invention is sleeved in the brake seat. After the brake ring, which is used to cooperate with the brake pad to realize the braking of the large chuck of the spindle, is integrated with the outer shell, it is connected to the shaft at one end of the bearing with a shaft. The inner conical surface at the rear end of the brake ring is adapted to the outer conical surface at the front end of the brake pad; the bearing with a shaft is sleeved in the bearing pipe seat, and the gasket connected to the other end of the bearing with a shaft is sleeved in the bearing pipe seat; the inner hole of the bearing pipe seat is of a stepped structure, and the inner wall provided on the convex platform divides the bearing pipe seat into two cavities. A first spring is arranged in the front cavity of the bearing pipe seat, installed between the gasket and the inner wall of the bearing pipe seat. A second spring is arranged in the rear cavity of the bearing pipe seat, positioned by the convex platform in the rear cavity of the bearing pipe seat and the inner hole of the support two. The bearing pipe seat is sleeved in the support two, and the front end face of the bearing pipe seat abuts against the end face of the brake seat.

[0005] Further, a first sealing ring is installed on the outer side of the rear end of the central hole of the brake seat. The first sealing ring is placed between the brake seat and the second bracket; a second sealing ring is installed on the outer side of the rear end of the bearing pipe seat, and the second sealing ring is placed between the bearing pipe seat and the second bracket.

[0006] Further, an air inlet pipeline is provided on the second bracket, and the air inlet pipeline is communicated with the rear cavity of the bearing pipe seat.

[0007] Further, the inner tapered hole at the rear end of the barrel spindle is adapted to the outer tapered surface of the housing; the front end shaft of the barrel spindle is connected to the bearing in a rolling manner, and the bearing is installed in the first bracket.

[0008] Further, a rocking handle is provided on the brake seat.

[0009] Further, a first process hole is provided on the gasket, and a screw is installed in the second process hole on the inner wall of the bearing pipe seat.

[0010] Further, the brake ring is a combination of a cylinder and a cone, and is made of synthetic rubber material.

[0011] Further, the gap between the brake ring and the brake pad is 1 mm - 2 mm.

[0012] Compared with the existing technology, the brake pads of the present invention are processed and manufactured with high-density synthetic rubber, are not easy to age and have elasticity, can effectively reduce the friction time between the brake pads and the brake ring, have a fast braking speed, hardly cause any loss to the brake ring made of aluminum alloy material, can keep the stable operation of the equipment for a long time, avoid the replacement of a large number of machine parts, improve the service life of the equipment, reduce the maintenance cost of the equipment, can save about more than 100,000 yuan in maintenance costs per year, and at the same time improve the product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention.

[0014] In the figure: 1, the first bracket; 2, the bearing; 3, the barrel spindle; 4, the housing; 5, the brake ring; 6, the rocking handle; 7, the brake seat; 8, the brake pad; 9, the first sealing ring; 10, the bearing pipe seat; 11, the second sealing ring; 12, the air inlet pipeline; 13, the second spring; 14, the screw; 15, the first spring; 16, the gasket; 17, the first process hole; 18, the bearing with a shaft; 19, the second bracket. DETAILED DESCRIPTION OF THE INVENTION

[0015] As Figure 1As shown in the figure, the brake pad 8 of the present invention is installed in the brake seat 7. After the brake ring 5, which is used to cooperate with the brake pad 8 to achieve the braking of the barrel chuck, and the outer shell 4 are integrated, they are tightly fitted and connected to the shaft at one end of the bearing with shaft 18. The inner conical surface at the rear end of the brake ring 5 is adapted to the outer conical surface at the front end of the brake pad 8. The gap between the brake ring 5 and the brake pad 8 is 1 mm - 2 mm. The brake pad 8 is a combination of a cylinder and a cone, and is made of high-density synthetic rubber material from Murata Company, model 21a - 421 - 009. It is anti-aging, elastic, tough, not easy to wear and damage, and has almost no loss to the brake ring 5 made of aluminum alloy material, and can stably maintain the normal operation of the equipment for a long time. The bearing with shaft 18 is tightly sleeved in the bearing pipe seat 10, and the gasket 16 connected to the other end of the bearing with shaft 18 is sleeved in the bearing pipe seat 10. The inner hole of the bearing pipe seat 10 is a stepped structure. The inner wall 10 - 1 provided on the boss divides the bearing pipe seat 10 into two cavities. The first spring 15 is arranged in the front cavity of the bearing pipe seat 10, and is installed between the gasket 16 and the inner wall 10 - 1 of the bearing pipe seat 10. The second spring 13 is arranged in the rear cavity of the bearing pipe seat 10, and is positioned by the boss in the rear cavity of the bearing pipe seat 10 and the inner hole of the support two 19. The bearing pipe seat 10 is sleeved in the support two 19, and the front end face of the bearing pipe seat 10 abuts against the end face of the brake seat 7. The first spring 15 and the second spring 13 are provided to effectively overcome the hard contact between the brake ring 5 and the brake pad 8. A first sealing ring 9 is installed on the outer side of the rear end of the central hole of the brake seat 7. The first sealing ring 9 is placed between the brake seat 7 and the support two 19. A second sealing ring 11 is installed on the outer side of the rear end of the bearing pipe seat 10. The second sealing ring 11 is placed between the bearing pipe seat 10 and the support two 19. An air inlet pipeline 12 is provided on the support two 19, and the air inlet pipeline 12 is communicated with the rear cavity of the bearing pipe seat 10. The inner conical hole at the rear end of the barrel 3 is adapted to the outer conical surface of the outer shell 4. The front end shaft of the barrel 3 is in rolling connection with the bearing 2, and the bearing 2 is installed in the support one 1. A rocker handle 6 is provided on the brake seat 7. A first process hole 17 is provided on the gasket 16, and a screw 14 is installed in the second process hole on the inner wall 10 - 1 of the bearing pipe seat 10. The first process hole 17 and the second process hole are used to conveniently remove the bearing with shaft 18 during maintenance. The support one 1, the support two 19 are fixedly connected to the body of the winding machine.

[0016] During the production process, when the yarn on the bobbin 3 suddenly breaks, the yarn induction in the channel of the electronic yarn clearer on the automatic winder is instantaneously lost. The broken-end signal without yarn induction is transmitted to the control system of the automatic winder. After receiving the signal, the control system issues an instruction to activate the solenoid valve to open the air valve. Compressed air enters the rear cavity of the bearing socket 10 through the air inlet pipeline 12 to form a compression chamber. The brake seat 7 is pushed forward by the spring two 13 through the bearing socket 10, so that the brake pad 8 on the brake seat 7 contacts the brake ring 5, and the bobbin 3 is braked under the action of instantaneous frictional force, and the cheese on the bobbin 3 can stop rotating; at the same time, the spring one 15 pushes the bearing with shaft 18. However, since the bobbin 3 is axially fixed, the brake ring 5 and the housing 4 are fixed at this time.

[0017] When it is necessary to remove the bobbin 3 from the housing 4, the operator manually moves the cradle handle 6 to the right, and simultaneously pushes the bearing socket 10, the bearing with shaft 18, the brake ring 5 and the housing 4 to the right through the brake seat 7, and then the bobbin 3 can be removed.

Claims

1. A braking device for the large chuck of a winding machine bobbin spindle, characterized in that: The brake pads (8) are sleeved inside the brake seat (7). After the brake ring (5) that cooperates with the brake pads (8) to achieve the braking of the barrel chuck is integrated with the outer shell (4), it is connected to the shaft at one end of the bearing with shaft (18). The inner conical surface at the rear end of the brake ring (5) is adapted to the outer conical surface at the front end of the brake pads (8); the bearing with shaft (18) is sleeved inside the bearing pipe seat (10), and the gasket (16) connected to the other end of the bearing with shaft (18) is sleeved inside the bearing pipe seat (10); the inner hole of the bearing pipe seat (10) is of a stepped structure, and the inner wall (10-1) provided on the convex platform divides the bearing pipe seat (10) into two cavities. The first spring (15) is arranged inside the front cavity of the bearing pipe seat (10), and is installed between the gasket (16) and the inner wall (10-1) of the bearing pipe seat (10). The second spring (13) is arranged inside the rear cavity of the bearing pipe seat (10), and is positioned by relying on the convex platform of the rear cavity of the bearing pipe seat (10) and the inner hole of the second support (19). The bearing pipe seat (10) is sleeved inside the second support (19), and the front end face of the bearing pipe seat (10) abuts against the end face of the brake seat (7).

2. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: A first sealing ring (9) is installed on the outer side of the rear end of the central hole of the brake seat (7), and the first sealing ring (9) is placed between the brake seat (7) and the second support (19); a second sealing ring (11) is installed on the outer side of the rear end of the bearing pipe seat (10), and the second sealing ring (11) is placed between the bearing pipe seat (10) and the second support (19).

3. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: An air inlet pipeline (12) is provided on the second support (19), and the air inlet pipeline (12) is communicated with the rear cavity of the bearing pipe seat (10).

4. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: The inner conical hole at the rear end of the barrel (3) is adapted to the outer conical surface of the outer shell (4); the front end shaft of the barrel (3) is in rolling connection with the bearing (2), and the bearing (2) is installed inside the first support (1).

5. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: A rocking handle (6) is provided on the brake seat (7).

6. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: A first process hole (17) is provided on the gasket (16), and a screw (14) is installed on the second process hole on the inner wall (10-1) of the bearing pipe seat (10).

7. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: The brake pads (8) are a combined body of a cylinder and a cone, and are made of synthetic rubber material.

8. The braking device for the large chuck of a winding machine bobbin spindle according to claim 1, characterized in that: The gap between the brake ring (5) and the brake pads (8) is 1 mm - 2 mm.

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