Ejector pin device for pay-off rack of cantilever single strander

Abstract

The utility model discloses an ejector pin device for a pay-off rack of a cantilever single twister, and belongs to the technical field of cable production equipment. Comprising an assembly I and an assembly II, an inner hole aI, an inner hole aII and an inner hole aIII which are communicated with one another are sequentially formed in the center of the assembly I from left to right, the diameter of the inner hole aI and the diameter of the inner hole aIII are larger than that of the inner hole IIa, and a screw hole is formed in the position of the inner hole aIII in the assembly I; the assembly II is of a cylinder structure, an inner hole bIII, an inner hole IIb and an inner hole bI which are communicated with one another are sequentially formed in the center of the assembly II from left to right, a groove is formed in the outer side wall of the assembly II, the assembly II is inserted into the inner hole a III of the assembly I, a hexagon socket cap screw is assembled in the screw hole through a bolt, and a cylinder head of the hexagon socket cap screw is inserted into the groove. Through the arrangement of the assembly I and the assembly II, maintenance personnel can easily replace or install a bearing connected with the outer thread head of the movable end shaft and the ejector pin device, and meanwhile the production efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable production equipment, in particular to a thimble device for a cantilever single-twister pay-off frame. Background Art

[0002] The cantilever single-twister pay-off frame adopts a shaftless structure. The shaft at one end is fixed, and the shaft head is equipped with a thimble connected to its flat key. The shaft at the other end is threadedly connected to the nut fixed on the pay-off frame through the external thread processed on the shaft. The movement generated by the rotation of the external thread is used to clamp or loosen the wire reel. The external thread head is also equipped with a thimble. The thimble installed on the external thread head is connected to the light rod of the external thread head through multiple sets of bearings, which mainly support the wire reel and enable the wire reel to rotate flexibly. The thimble installed on the external thread head and the multiple sets of bearings connected to the external thread head are very easy to damage after running for a period of time. If this thimble adopts an integral structure, it will be difficult and time-consuming for maintenance personnel to replace or install multiple sets of bearings, which will also reduce the production efficiency of the equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a cantilever single-twister pay-off stand thimble device, which allows maintenance personnel to easily replace or install the bearing connecting the outer thread head of the movable end shaft and the thimble, while also improving the production efficiency of the equipment, thereby solving the problems raised in the above-mentioned background technology.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A thimble device for a cantilever single-twister pay-off frame comprises component I1 and component II3. Component I1 is provided with, from left to right, interconnected inner holes aI11, aII12, and aIII15 in sequence in the center thereof. The diameters of the inner holes aI11 and aIII15 are larger than the diameter of the inner hole IIa12. A screw hole 14 is provided at the inner hole aIII15 of component I1. Component II3 is a cylindrical structure. Component II3 is provided with, from left to right, interconnected inner holes bIII32, bIII35, and bI34 in sequence in the center thereof. A groove 33 is provided on the outer wall of component II3. Component II3 is inserted into the inner hole aIII15 of component I1. A bolt in the screw hole 14 is fitted with a hexagon socket head screw 2, and the cylindrical head of the hexagon socket head screw 2 is inserted into the groove 33.

[0006] A wire drum inner hole contact surface 13 is processed on the outer side wall of the left end of the component I1, and the wire drum inner hole contact surface 13 is composed of a connected cylindrical surface and a conical surface.

[0007] A through hole 31 is provided on the stepped surface of the inner hole IIIb 32 of the component II 3 , and the right end outlet of the through hole 31 is located on the stepped surface of the inner hole bⅠ 34 .

[0008] A plane bearing 5 is installed in the inner hole bⅠ34, and the outer diameter of the plane washer of the plane bearing 5 is transitionally matched with the inner hole bⅠ34.

[0009] Two sets of deep groove ball bearings 6 are installed in the inner hole aⅡ12, and the outer rings of the deep groove ball bearings 6 are transitionally matched with the inner hole aⅡ12.

[0010] The inner rings of the plane bearing 5 and the deep groove ball bearing 6 are of the same size. The plane bearing 5 and the deep groove ball bearing 6 are arranged on the polished rod 41 of the movable end shaft. The polished rod 41 and the inner rings of the plane bearing 5 and the deep groove ball bearing 6 are all transitionally matched. A groove is machined on the end of the polished rod 41, and a shaft elastic circlip 7 is installed in the groove. The shaft elastic circlip 7 is blocked outside the inner ring of the deep groove ball bearing 6 to limit its axial direction.

[0011] The diameter of the inner hole bⅢ32 is smaller than the diameter of the inner hole aⅡ12, and the inner hole bⅡ35 of the component Ⅱ3 and the outer diameter of the polished rod 41 are clearance-fitted.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] The utility model provides components I and II, which make it easy for maintenance personnel to replace or install the bearing connecting the outer thread head of the movable end shaft and the ejector device, while also improving the production efficiency of the equipment. In summary, the utility model has a simple and compact structure, reliable operation, easy installation and disassembly, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of component I of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of component II of the utility model;

[0017] Figure 4 It is a side view of component II of the present utility model;

[0018] Shown in the figure: 1. Component I, 11. Inner hole aI, 12. Inner hole aII, 13. Contact surface of the inner hole of the wire drum, 14. Screw hole, 15. Inner hole aIII, 2. Hexagon socket head screw, 21. Cylindrical head, 3. Component II, 31. Through hole, 32. Inner hole bIII, 3.3. Groove, 34. Inner hole bI34, 35. Inner hole IIb, 4. External thread, 41. Polished rod, 5. Plane bearing, 6. Deep groove ball bearing, and 7. Elastic retaining ring for shaft. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] Example 1

[0023] like Figure 1-4 This embodiment provides a thimble device for a cantilever single-twister pay-off frame, comprising component I1 and component II3. Component I1 is provided with, from left to right, interconnected inner holes aI11, aII12, and aIII15 in sequence in the center thereof. The diameters of the inner holes aI11 and aIII15 are larger than the diameter of the inner hole IIa12. A screw hole 14 is provided at the inner hole aIII15 of component I1. Component II3 is a cylindrical structure. Component II3 is provided with, from left to right, interconnected inner holes bIII32, bIII35, and bIII34 in sequence in the center thereof. A groove 33 is provided on the outer wall of component II3. Component II3 is loosely inserted into the inner hole aIII15 of component I1. A hexagon socket head screw 2 is assembled with a bolt in the screw hole 14. The cylindrical head of the hexagon socket head screw 2 is loosely inserted into the groove 33. By tightening multiple hexagon socket head screws 2 threadedly connected to the screw holes 14 of component I1, component I1 and component II3 can be effectively connected into a whole; when connecting component I1 and component II3 into a whole, ensure that the vertical center line of the width of the groove 33 processed on the outer end of component II3 coincides with the vertical center line of the screw hole 14 of component I1.

[0024] A wire reel inner hole contact surface 13 is processed on the outer side wall of the left end of the component I1. The wire reel inner hole contact surface 13 is composed of a connected cylindrical surface and a conical surface, and is used for installing a wire reel with a cylindrical or conical inner hole.

[0025] A through hole 31 is provided on the stepped surface of the inner hole IIIb 32 of the component II 3 , and the right end outlet of the through hole 31 is located on the stepped surface of the inner hole b I 34 . The through hole 31 facilitates the removal of the plane washer of the plane bearing 5 .

[0026] A plane bearing 5 is installed in the inner hole bⅠ34, and the outer diameter of the plane washer of the plane bearing 5 is transitionally matched with the inner hole bⅠ34.

[0027] Two sets of deep groove ball bearings 6 are installed in the inner hole aⅡ12, and the outer rings of the deep groove ball bearings 6 are transitionally matched with the inner hole aⅡ12.

[0028] The inner rings of the plane bearing 5 and deep groove ball bearing 6 are the same size. Both are mounted on a polished rod 41 on the movable shaft. The polished rod 41 and the inner rings of the plane bearing 5 and deep groove ball bearing 6 are transitionally fitted. A groove is machined into the end of the polished rod 41, and a shaft circlip 7 is installed in the groove. The shaft circlip 7 is retained outside the inner ring of the deep groove ball bearing 6 to limit its axial direction. The shoulder of the external screw 4 rests on the outer end of the plane bearing 5 to limit its axis.

[0029] The diameter of inner hole bⅢ32 is smaller than that of inner hole aⅡ12. An inner hole IIIb32 is also machined on the upper surface. The boss formed by inner hole IIIb32 and the end face of component II3 axially limits the outer ring of deep groove ball bearing 6. The inner hole bⅡ35 of component II3 is clearance-fitted with the outer diameter of polished rod 41.

[0030] In the present invention, the reliability and stability of the ejector device can be further improved by appropriately widening or reducing the distance between the inner hole IIIb32 and the inner hole bII35 of the component II and the width of the component II according to the size of the installation reel.

Claims

1. A cantilever single stranding machine pay-off frame thimble device, comprising component I (1) and component II (3), characterized in that: The center of the component I (1) is provided with inner holes aI (11), inner holes aII (12), and inner holes aIII (15) which are interconnected from left to right. The diameters of the inner holes aI (11) and the inner holes aIII (15) are larger than the diameter of the inner hole IIa (12). A screw hole (14) is provided at the inner hole aIII (15) of the component I (1). The component II (3) is a cylindrical structure. The center of the component II (3) is provided with inner holes bIII (32), inner holes bII (35), and inner holes bI (34) which are interconnected from left to right. A groove (33) is provided on the outer wall of the component II (3). The component II (3) is inserted into the inner hole aIII (15) of the component I (1). The bolt in the screw hole (14) is equipped with a hexagon socket head screw (2). The cylindrical head of the hexagon socket head screw (2) is inserted into the groove (33).

2. The thimble device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: A wire drum inner hole contact surface (13) is processed on the outer side wall of the left end of the component I (1), and the wire drum inner hole contact surface (13) is composed of a connected cylindrical surface and a conical surface.

3. The thimble device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: A through hole (31) is provided on the stepped surface of the inner hole IIIb (32) of the component II (3), and the right end outlet of the through hole (31) is located on the stepped surface of the inner hole bⅠ (34).

4. The thimble device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: A plane bearing (5) is installed in the inner hole bⅠ (34), and the outer diameter of the plane washer of the plane bearing (5) is transitionally matched with the inner hole bⅠ (34).

5. The thimble device for a cantilever single stranding machine pay-off frame according to claim 4, characterized in that: Two sets of deep groove ball bearings (6) are installed in the inner hole aⅡ (12), and the outer rings of the deep groove ball bearings (6) are transitionally matched with the inner hole aⅡ (12).

6. The thimble device for a cantilever single stranding machine pay-off stand according to claim 5, characterized in that: The inner rings of the plane bearing (5) and the deep groove ball bearing (6) are of the same size. The plane bearing (5) and the deep groove ball bearing (6) are arranged on a polished rod (41) of the movable end shaft. The polished rod (41) and the inner rings of the plane bearing (5) and the deep groove ball bearing (6) all adopt transition fit. A groove is machined on the end of the polished rod (41). A shaft elastic circlip (7) is installed in the groove. The shaft elastic circlip (7) blocks the inner ring of the deep groove ball bearing (6) to limit its axial direction.

7. The thimble device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: The diameter of the inner hole bⅢ (32) is smaller than the diameter of the inner hole aⅡ (12), and the inner hole bⅡ (35) of the component Ⅱ (3) and the outer diameter of the polished rod (41) are clearance-matched.

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