Positioning and locking device for pay-off rack of cantilever single twister

Abstract

The utility model discloses a positioning and locking device for a pay-off rack of a cantilever single strander, which relates to the technical field of wire coil rack devices of stranders and comprises a bolt cap, a spring, a bolt sleeve, a bolt and a hexagonal nut, the bolt is sequentially mounted with the hexagonal nut, the bolt cap and the bolt sleeve in a penetrating manner, and the bolt comprises a main shaft body, a limiting shaft and a frustum which are fixedly connected in sequence. The spring is movably sleeved on the outer side of the main shaft body; the movable end shaft locking device has the advantages of being simple in combination, compact in structure, reasonable in layout, reliable in operation, convenient to popularize and operate, and capable of effectively locking the movable end shaft on the pay-off rack of the phi630 cantilever single twister at the positioning and locking position. The safety accidents that the single wire is snapped, the wire coil is thrown out and the like due to the fact that the wire coil is not locked are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of a wire drum frame device for a stranding machine, and more particularly to a positioning and locking device for a cantilever single stranding machine pay-off frame. Background Art

[0002] Currently, the cantilever single-stranded twister is equipped with four identical pay-off stands. Each pay-off stand works by rotating a bearing assembly driven by a motor, straightening the slack core wire (single wire) and properly twisting it, thus restoring the wire's elasticity and toughness. The pay-off stand utilizes a shaftless structure, with one end fixed to the shaft and the other end threadedly connected to a nut mounted on the pay-off stand via an external thread machined onto the shaft. The movement generated by the rotation of the external thread tightens or loosens the reel.

[0003] Because the positioning and locking device installed on the outer end of the movable shaft is affected by the installation position and the size of the outer threads processed on the movable shaft and the shaft, the overall size of the positioning and locking device is relatively small. The outer diameter of the mating section between the latch and the latch cap is usually no larger than 6mm, so the connection method of connecting the latch and the latch cap as a whole through rivets cannot be used. If the latch and the latch cap cannot be firmly connected as a whole, the movable shaft cannot be effectively locked in the positioning and locking position through the positioning and locking device. When the machine is turned on, the outer threads on the movable shaft are difficult to lock in place and rotate. As a result, when the machine is turned on, the single wire may be broken due to the wire reel not being locked, or even thrown out of the wire reel, causing equipment safety accidents. Utility Model Content

[0004] The purpose of the utility model is: in order to solve the above-mentioned technical problems, the utility model provides a positioning locking device for a cantilever single-twister pay-off frame. By adopting the positioning locking device, the movable end shaft on the ￠630 cantilever single-twister pay-off frame can be effectively locked in the positioning locking position, thereby preventing the occurrence of equipment safety accidents such as single wire breaking and wire reel throwing out due to the wire reel not being locked.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A positioning and locking device for a cantilever single-twister pay-off frame comprises a latch cap, a spring, a latch sleeve, a latch, and a hexagonal nut. The latch is sequentially installed through the hexagonal nut, the latch cap, and the latch sleeve. The latch comprises a main shaft body, a limit shaft, and a frustum that are fixedly connected in sequence. The spring is movably mounted on the outer side of the main shaft body.

[0007] Preferably, an inner thread is provided on the inner side of the latch cap, a second outer thread is provided on the outer side of the main shaft body, and the hexagonal nut and the inner thread are both threadedly connected to the second outer thread.

[0008] Preferably, a protrusion is fixed on the right side of the latch cap, and a groove is provided on the left side of the latch sleeve, and the protrusion is movably engaged with the groove.

[0009] Preferably, the outer wall of the latch sleeve is provided with a primary shaft, a secondary shaft and an outer thread 1 in sequence from left to right, and a hexagonal bolt head is fixed to the left end of the secondary shaft.

[0010] Preferably, a limiting hole is provided on a side of the inner wall of the latch sleeve away from the groove, the limiting shaft is movably plugged into the limiting hole, and the spring is located inside the limiting hole.

[0011] The beneficial effects of the utility model are as follows: the utility model has the advantages of simple combination, compact structure, reasonable layout, reliable operation, easy promotion and convenient operation; through the use of the utility model, the movable end shaft on the ￠630 cantilever single twisting machine pay-off frame can be effectively locked in the positioning locking position, eliminating the occurrence of equipment safety accidents such as single wire breaking and wire reel being thrown out due to the wire reel not being locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the utility model;

[0013] Figure 2 It is a front sectional view of the present utility model;

[0014] Figure 3 This is a cross-sectional view of the latch cap, latch sleeve, and latch of the utility model;

[0015] Figure 4 This is a right side view of the latch cap of the present utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the latch cap of the utility model;

[0017] Figure 6 It is a left side view of the latch sleeve of the present utility model.

[0018] Figure numerals: 1. Latch cap; 101. Internal thread; 102. Protrusion; 2. Spring; 3. Latch sleeve; 301. Primary shaft; 302. Secondary shaft; 303. External thread one; 304. Limiting hole; 305. Groove; 4. Latch; 401. Main shaft body; 4011. External thread two; 402. Limiting shaft; 4021. Cone; 5. Hexagonal nut. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0020] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "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.

[0021] See also Figure 1-6 The utility model provides the following technical solutions: a positioning and locking device for a cantilever single stranding machine pay-off frame, comprising a latch cap 1, a spring 2, a latch sleeve 3, a latch 4, and a hexagonal nut 5. The latch 4 is sequentially installed with the hexagonal nut 5, the latch cap 1, and the latch sleeve 3. The latch 4 comprises a main shaft body 401, a limiting shaft 402, and a frustum 4021 that are fixedly connected in sequence. The spring 2 is movably mounted on the outer side of the main shaft body 401. An inner thread 101 is provided on the inner side of the latch cap 1, and an outer thread 4011 is provided on the outer side of the main shaft body 401. The hexagonal nut 5, the inner thread 101, and the outer thread 4011 are provided on the outer side of the main shaft body 401. The threads 101 are all threadedly connected with the external thread 2 4011; a protrusion 102 is fixed to the right side of the pin cap 1, and a groove 305 is provided on the left side of the pin sleeve 3, and the protrusion 102 is movably engaged with the groove 305; the outer wall of the pin sleeve 3 is provided with a primary shaft 301, a secondary shaft 302 and an external thread 1 303 from left to right, and a hexagonal bolt head is fixed to the left end of the secondary shaft 302; a limiting hole 304 is provided on the side of the inner wall of the pin sleeve 3 away from the groove 305, the limiting shaft 402 is movably engaged with the limiting hole 304, and the spring 2 is located inside the limiting hole 304.

[0022] In this embodiment:

[0023] The outer end of the latch cap 1 is stepped, and the outer wall is knurled to facilitate the hand to grasp the latch cap 1 and prevent slipping; the right end of the latch cap 1 has the same outer diameter as the primary shaft 301 of the latch sleeve 3; the protrusion 102 and the groove 305 adopt a clearance fit, and the depth of the protrusion 102 and the groove 305 are the same; the interior of the latch cap 1 and the latch sleeve 3 is provided with a socket, and the two sockets are of the same size and both have a clearance fit with the main shaft body 401 of the latch 4.

[0024] A groove 305 is processed at the left end of the pin sleeve 3, the diameter of the primary shaft 301 is smaller than the diameter of the secondary shaft 302, and a hexagonal bolt head is processed at the left end of the secondary shaft 302. The hexagonal bolt head makes it convenient for the staff to use special tools to tighten the pin sleeve to the positioning and locking position of the movable end shaft of the cantilever single twisting machine pay-off frame; an external thread 303 is processed on the outer side of the right end of the secondary shaft 302, and the external thread 303 is threadedly connected to the positioning and locking hole at the outer end of the movable end shaft of the pay-off frame; the diameter of the internal insertion hole of the pin sleeve 3 is smaller than the diameter of the limiting hole 304; the limiting hole 304 and the outer diameter of the cylindrical helical compression spring 2 are clearance-matched.

[0025] The outside of the pin 4 is stepped, and the diameter of the main shaft body 401 is smaller than the diameter of the limiting shaft 402; the outer side of the left end of the main shaft body 401 is processed with an external thread 4011, and the external thread 4011 is threadedly connected to the hexagonal nut 5; the main shaft body 401 and the inner diameter of the cylindrical helical compression spring 2 are clearance-fitted; the limiting shaft 402 and the limiting hole 304 are clearance-fitted, and the right side of the limiting shaft 402 needs to extend to the outside of the limiting hole 304 during installation; the right end of the limiting shaft 402 is processed with a frustum 4021, and the size of the frustum 4021 matches the tapered groove uniformly processed with threads on the movable end shaft of the pay-off stand, and the two are clearance-fitted.

[0026] The outer diameter of the cylindrical helical compression spring 2 is clearance-fitted with the limiting hole 304, and the cylindrical helical compression spring 2 is installed in the space formed by the main shaft body 401 of the latch 4 and the limiting hole 304; the clamping force formed by the cylindrical helical compression spring 2, the limiting shaft 402 of the latch 4 and the limiting hole 304 ensures good contact or disengagement between the frustum 4021 and the evenly threaded conical groove on the shaft of the movable end of the pay-off stand, and also ensures that the axis of the latch 4, the latch sleeve 3 and the latch cap 1 are not easily skewed, so that the frustum 4021 and the evenly threaded conical groove on the shaft of the movable end of the pay-off stand are subjected to uniform force.

[0027] The frustum 4021 processed on the pin 4 is not limited to this shape. The shape of the frustum 4021 must match the specific shape of the groove uniformly processed by the thread on the movable end shaft of the pay-off stand.

[0028] When the latch cap 1, cylindrical helical compression spring 2, latch sleeve 3 and latch 4 are installed in place according to the installation position requirements, the hexagonal nut 5 needs to be threadedly connected to the outer thread 4011 of the main shaft body 401 of the latch 4 and tightened on the side of the latch cap 1 to ensure that the latch cap 1 and the latch 4 are effectively connected as a whole.

[0029] As a further improvement of the present invention, the length of the second outer thread 4011 on the main shaft body 401 of the pin 4 is appropriately lengthened to facilitate accurate adjustment of the distance between the cone 4021 and the evenly processed cone groove on the movable end shaft of the pay-off stand for good contact or separation, thereby further improving the reliability, stability and convenient operation of the positioning and locking device.

[0030] The processing and installation process of this utility model:

[0031] 1. Based on the installation position size and external wire size of the movable end shaft of the existing cantilever single twisting machine pay-off stand and the specific shape of the groove uniformly processed with the thread on the movable end shaft of the pay-off stand, combined with the above technical scheme, a drawing of a positioning and locking device for a cantilever single twisting machine pay-off stand that meets the actual installation requirements is designed.

[0032] 2. According to the designed drawing of the positioning and locking device, process the pin caps 1, pin sleeves 3 and pins 4 that meet the actual needs, and purchase the required cylindrical helical compression springs 2 and hexagonal nuts 5.

[0033] 3. Then, assemble multiple sets of the positioning and locking devices according to the requirements of the drawings, and thread the hexagonal nut 5 with the outer thread 4011 of the main shaft 401 of the latch 4 and tighten it on the side of the latch cap 1, so that the latch cap 1 and the latch 4 are effectively connected into a whole.

[0034] 4. At this point, multiple sets of cantilever single twister pay-off frames that meet actual installation requirements have been assembled with positioning and locking devices.

[0035] 6. When the machine is stopped, multiple sets of cantilever single twister pay-off frames that meet the actual installation requirements can be installed in sequence to the positioning and locking position of the movable end shaft of the cantilever single twister pay-off frame using positioning and locking devices.

[0036] 7. After all the preparations for starting the machine are completed, the machine can be started for production.

[0037] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A positioning and locking device for a cantilever single stranding machine pay-off frame, comprising: A latch cap (1), a spring (2), a latch sleeve (3), a latch (4), and a hexagonal nut (5); the latch (4) is sequentially installed through the hexagonal nut (5), the latch cap (1), and the latch sleeve (3); the latch (4) comprises a main shaft (401), a limiting shaft (402), and a frustum (4021) that are sequentially fixedly connected; the spring (2) is movably fitted onto the outer side of the main shaft (401).

2. A positioning and locking device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: An inner thread (101) is provided on the inner side of the latch cap (1), and a second outer thread (4011) is provided on the outer side of the main shaft body (401). The hexagonal nut (5) and the inner thread (101) are both threadedly connected to the second outer thread (4011).

3. The positioning and locking device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: A protrusion (102) is fixed on the right side of the latch cap (1), a groove (305) is provided on the left side of the latch sleeve (3), and the protrusion (102) is movably engaged with the groove (305).

4. The positioning and locking device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: The outer wall of the latch sleeve (3) is provided with a primary shaft (301), a secondary shaft (302) and an outer thread 1 (303) in sequence from left to right, and a hexagonal bolt head is fixed to the left end of the secondary shaft (302).

5. The positioning and locking device for a cantilever single stranding machine pay-off frame according to claim 1, characterized in that: A limiting hole (304) is provided on the inner wall of the latch sleeve (3) away from the groove (305); the limiting shaft (402) is movably connected to the limiting hole (304); the spring (2) is located inside the limiting hole (304); and the spring (2) is specifically a cylindrical helical compression spring.

Images