Thimble device with brake

Abstract

The utility model discloses an ejector pin device with a brake, and belongs to the technical field of cable production equipment. Comprising a positioning sleeve, a positioning rod and an ejector pin body, the positioning sleeve is fixedly arranged on a pay-off rack, an ejector pin shaft is arranged on the pay-off rack through a bearing, the ejector pin body is arranged at the end of the ejector pin shaft in a sleeving mode, a stepped through hole for installing the ejector pin shaft is formed in the ejector pin body, and the side wall of the ejector pin body is sequentially machined into a first cylindrical surface, a conical surface and a second cylindrical surface from front to back; an annular groove is machined in the second cylindrical surface, and a brake is arranged in the annular groove. The device is simple in structure, convenient to mount and dismount and easy to operate. According to the utility model, the tension of the rewound monofilament with a small diameter can be easily controlled, so that the stranded cable core has good structural stability, is round and neat and is not easy to generate snakelike deformation, the product quality is improved, the manufacturing cost of the cable is reduced, and the cable is convenient to popularize and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable production equipment technical field, concretely relates to a top pin device with brake. BACKGROUND

[0002] The no-shaft lifting 630 type pay-off rack is an auxiliary equipment for producing electric wire in the electric wire and cable factory, and is widely applicable, especially applicable to the large-diameter wire winding on small-diameter wire in the electric wire and cable factory and the copper and aluminum wire drawing factory. The pay-off rack adopts the no-shaft top cone type fixed wire reel, and can install the wire reel with a diameter of 400-630 mm. The pay-off rack can cooperate with any cable equipment for pay-off, and has low price, does not need to dig a pit, and is convenient to install and move, and is the first choice for the pay-off of the electric wire and cable factory and other industries.

[0003] When the very small diameter single wire is wound at a very fast speed on the no-shaft lifting 630 type pay-off rack, the existing pay-off reel tension is not easy to control, and the wound single wire is easily loose or broken, the structure stability of the stranded cable core is poor, the cable core is not round, and the cable core is easily deformed in a snake shape, which seriously affects the product quality and undoubtedly increases the manufacturing cost of the cable. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a top pin device with brake, and the diameter of the wound single wire is very small, and the tension of the single wire is controlled, the structure stability of the stranded cable core is good, the cable core is round, and the cable core is not easily deformed in a snake shape, the product quality is improved, and the manufacturing cost of the cable is reduced.

[0005] The utility model adopts the technical scheme as follows:

[0006] A top pin device with brake, comprising a positioning sleeve 1, a positioning rod 2 and a top pin body 3, the positioning sleeve 1 is fixedly arranged on a pay-off rack 8, a top pin shaft 9 is arranged on the pay-off rack 8 through a bearing, the top pin body 3 is sleeved on the end of the top pin shaft 9, a stepped through hole for installing the top pin shaft 9 is arranged on the top pin body 3, the side wall of the top pin body 3 is sequentially machined into a first cylindrical surface, a conical surface and a second cylindrical surface from front to back, an annular groove 32 is formed in the second cylindrical surface, and a brake 7 is arranged at the annular groove 32.

[0007] The brake 7 comprises an iron lining brake 71, a brake belt 72, a bolt 73, a compression spring 74 and an adjusting nut 75, the brake belt 72 is arranged in the annular groove 32, the iron lining brake 71 is arranged on the outer side of the brake belt 72, a connecting lug is arranged on the outer side of the iron lining brake 71, the connecting lug and the positioning sleeve 1 are connected together through the positioning rod 2, end plates with through holes are arranged at the two ends of the iron lining brake 71, and the two end plates are connected together through the bolt 73.

[0008] An adjusting nut 75 is threadedly mounted on the bolt 73 , and a compression spring 74 is sleeved on the bolt 73 between the adjusting nut 75 and the end plate.

[0009] The stepped through hole on the ejector body 3 includes an inner hole I31 and an inner hole II33 which are interconnected. The diameter of the inner hole I31 is smaller than the diameter of the inner hole II33. A keyway is provided on the inner wall of the inner hole I31. The inner hole I31 and the shaft head of the ejector shaft 9 are transitionally matched and connected by a flat key 6. The inner hole II33 and the shaft body of the ejector shaft 9 are clearance matched.

[0010] A mounting groove is provided at the front end of the inner hole Ⅰ31 on the ejector body 3. The diameter of the mounting groove is larger than the diameter of the inner hole Ⅰ31. A pressure cover 4 is provided in the mounting groove. A through hole is provided in the center of the pressure cover 4. A threaded hole is provided on the shaft head of the ejector shaft 9. The pressure cover 4 is fixed to the end head of the ejector shaft 9 by a hexagonal cylindrical head screw 5.

[0011] A threaded hole is provided on the pay-off frame 8 at a position corresponding to the positioning rod 2, and an external thread is provided on the end of the positioning rod 2. The positioning rod 2 passes through the connecting ear plate and the positioning sleeve 1 in sequence and is then threadedly provided in the threaded hole of the pay-off frame 8.

[0012] The iron-lined brake 71 and the brake band 72 are fixedly connected by rivets.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] The utility model has a simple structure, is easy to install and remove, and is easy to operate. Through the use of the utility model, the tension of the rewound monofilament with a very small diameter can be easily controlled, so that the cable core structure after stranding is relatively stable, round and not prone to serpentine deformation, thereby improving product quality, reducing cable manufacturing costs, and facilitating popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 for Figure 1 The cross-sectional view at AA;

[0017] Figure 3 This is a schematic structural diagram of the ejector body of the present utility model;

[0018] As shown in the figure: 1. Positioning sleeve; 2. Positioning rod; 3. Ejector pin; 31. Inner hole one; 32. Groove; 33. Inner hole two; 4. Pressure cap; 5. Hexagon socket head screw; 6. Flat key; 7. Brake; 71. Iron-lined brake; 72. Brake band; 73. Bolt; 74. Compression spring; 75. Adjusting nut; 8. Pay-off stand; 9. Ejector pin shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] Embodiment 1

[0023] As Figures 1-3 The present embodiment provides a needle device with a brake, comprising a positioning sleeve 1, a positioning rod 2 and a needle body 3, the positioning sleeve 1 is welded on a pay-off stand 8, the pay-off stand 8 is provided with a needle shaft 9 through a bearing, the needle body 3 is sleeved on the end of the needle shaft 9, the needle body 3 is provided with a stepped through hole for mounting the needle shaft 9, the side wall of the needle body 3 is sequentially machined into a first cylindrical surface, a conical surface and a second cylindrical surface from front to back, the first cylindrical surface and the conical surface are respectively used for mounting the inner hole of a cylindrical or conical wire reel; an annular groove 32 is machined on the second cylindrical surface, and the brake 7 is arranged at the annular groove 32.

[0024] The brake 7 comprises an iron lining brake 71, a brake band 72, a bolt 73, a compression spring 74 and an adjusting nut 75, the brake band 72 is arranged in the annular groove 32, the iron lining brake 71 is arranged outside the brake band 72, and the iron lining brake 71 is fixedly connected with the brake band 72 through rivets. A connecting lug plate is arranged on the outside of the iron lining brake 71, the connecting lug plate and the positioning sleeve 1 are connected together through the positioning rod 2, and the iron lining brake 71 is provided with end plates with through holes at both ends, the two end plates are connected together through the bolt 73, and the through holes in the end plates are in clearance fit with the bolt 73. The rod body of the positioning rod 2 and the inner hole of the positioning sleeve 1 are in clearance fit; the axial position of the iron lining brake 71 of the brake 7 is limited through the positioning rod 2 and the positioning sleeve 1, and the stability of the brake 7 is ensured.

[0025] The adjusting nut 75 is threadedly arranged on the bolt 73, and the compression spring 74 is arranged on the bolt 73 between the adjusting nut 75 and the end plate. By rotating the adjusting nut 75 threadedly connected with the bolt 73, the tightness of the compression spring 74 can be changed, the friction degree between the brake band 72 and the groove 32 is controlled at any time, and the wire paying tension during single-wire rewinding with a very small diameter is controlled.

[0026] The stepped through hole on the thimble body 3 comprises an inner hole I 31 and an inner hole II 33 in communication with each other, the diameter of the inner hole I 31 is smaller than that of the inner hole II 33, a key groove is arranged on the inner wall of the inner hole I 31, the shaft head of the thimble shaft 9 is in transition fit with the inner hole I 31 and is connected through the flat key 6, and the inner hole II 33 is in clearance fit with the shaft body of the thimble shaft 9.

[0027] The inner hole I 31 of the thimble body 3 is provided with a mounting groove at the front end, the diameter of the mounting groove is larger than that of the inner hole I 31, the gland 4 is arranged in the mounting groove, the through hole is arranged in the center of the gland 4, the threaded hole is arranged on the shaft head of the thimble shaft 9, and the gland 4 is fixed on the end head of the thimble shaft 9 through the inner hexagonal cylindrical head screw 5.

[0028] The threaded hole is arranged on the corresponding position of the positioning rod 2 of the wire paying rack 8, the external thread is arranged on the end head of the positioning rod 2, and the positioning rod 2 is threadedly arranged in the threaded hole of the wire paying rack 8 after sequentially penetrating through the connecting lug plate and the positioning sleeve 1.

[0029] The use method of the utility model is as follows: firstly, according to the actual installation position size of the thimble device to be manufactured and each component of the existing shaftless lifting 630 type wire paying rack, the thimble device drawing meeting the actual installation requirements is designed in combination with the above technical scheme; the positioning sleeve 1, the positioning rod 2, the thimble body 3 and the brake 7 are processed according to the designed thimble device drawing.

[0030] With the production gap, disassembly of the existing shaftless lifting 630 type pay-off frame on the top pin shaft 9 grommet 4, hexagonal head cylinder screw 5, disassembly of the existing unreliable tension control device; then the processing of the top pin body 3 installed to the top pin shaft 9 one end, and through the grommet 4 hole of the hexagonal head cylinder screw 5 will be fastened to the top pin body 3 on the top pin shaft 9.

[0031] Then brake 7 according to the design requirements of the drawing installed to the top pin body 3, and at the same time the positioning sleeve 1 and positioning rod 2 are also installed to the designated location.

[0032] Next, the brake top pin device is installed.

[0033] Then in the rewinding process, by rotating the adjusting nut 75 threaded with the bolt 73, so as to control the tightness of the iron lining brake 71, so as to control the friction degree between the brake belt 72 and the groove 32 at any time, and also control the pay-off tension of the single wire with very small diameter during rewinding.

Claims

1. A pin device with brake, comprising a positioning sleeve (1), a positioning rod (2) and a pin body (3), the positioning sleeve (1) is fixedly arranged on a pay-off rack (8), and the pin body (3) is sleeved on the end of a pin shaft (9), characterized in that, The needle body (3) is provided with a stepped through hole for mounting the needle shaft (9), the side wall of the needle body (3) is sequentially machined into a first cylindrical surface, a conical surface and a second cylindrical surface from front to back, an annular groove (32) is machined on the second cylindrical surface, and a brake (7) is arranged at the annular groove (32).

2. A thimble assembly with brake as defined in claim 1, characterized in that: The brake (7) comprises an iron lining brake (71), a brake band (72), a bolt (73), a compression spring (74) and an adjusting nut (75), the brake band (72) is arranged in the annular groove (32), the iron lining brake (71) is arranged outside the brake band (72), an connecting lug is arranged on the outside of the iron lining brake (71), the connecting lug and the positioning sleeve (1) are connected together through the positioning rod (2), end plates with through holes are arranged at both ends of the iron lining brake (71), and the two end plates are connected together through the bolt (73).

3. A needle assembly with brake as defined in claim 2, characterized in that: The adjusting nut (75) is threadedly assembled on the bolt (73), and the compression spring (74) is sleeved on the bolt (73) between the adjusting nut (75) and the end plate.

4. A thimble assembly with brake as defined in claim 1, wherein: The stepped through hole on the needle body (3) comprises an inner hole I (31) and an inner hole II (33) in communication with each other, the diameter of the inner hole I (31) is smaller than that of the inner hole II (33), a key groove is arranged on the inner wall of the inner hole I (31), the shaft head of the needle shaft (9) is in transition fit with the inner hole I (31) and is connected through a flat key (6), and the inner hole II (33) is in clearance fit with the shaft body of the needle shaft (9).

5. A needle assembly with brake as defined in claim 4, characterized in that: A mounting groove is arranged at the front end of the inner hole I (31) on the needle body (3), the diameter of the mounting groove is greater than that of the inner hole I (31), a gland (4) is arranged in the mounting groove, a through hole is arranged at the center of the gland (4), a threaded hole is arranged on the shaft head of the needle shaft (9), and the gland (4) is fixed on the end head of the needle shaft (9) through a inner hexagonal cylindrical head screw (5).

6. A thimble assembly with brake as defined in claim 1, wherein: Threaded holes are arranged at the corresponding positions of the positioning rod (2) on the pay-off rack (8), external threads are arranged on the end head of the positioning rod (2), and the positioning rod (2) is threadedly arranged in the threaded holes of the pay-off rack (8) after sequentially penetrating through the connecting lug and the positioning sleeve (1).

7. A needle assembly with brake as defined in claim 2, wherein: The iron lining brake (71) and the brake band (72) are fixedly connected through rivets.

Images