Tensioner for horizontal traction machine

Abstract

The utility model relates to the technical field of tensioners, and provides a tensioner for a horizontal drawing machine, which comprises a tensioner shell, a sliding groove is arranged in the tensioner shell, a limiting seat is arranged in the sliding groove in a sliding manner, a limiting groove is arranged in the limiting seat, a drawing device for automatically adjusting yarn tension is arranged in the limiting groove, and the tensioning device is connected with the sliding groove. And a driving device for driving the stretching device to start is mounted in the limiting seat. A second contact is in contact with a first contact on the limiting block to start the driving device, the limiting block is made to be close to the motor, when a second contact on the other side of the L-shaped base is in contact with the first contact on the limiting block, the driving device stops, the spring is in a stress contraction state, and at the moment, yarn is still kept in a tight state; therefore, the situation that normal work of the horizontal traction machine is affected is avoided, and the horizontal traction machine works more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioners, in particular to a tensioner for a flat pulling machine. Background Art

[0002] In the chemical fiber industry, the raw yarn is unwound and then drawn through a flat drawing machine. The tensioner is an important component of the flat drawing machine, which adjusts the tension of the yarn during the conveying process.

[0003] Patent document CN218950671U discloses a tensioner, the protected claim of which "comprises a rectangular box body, a side panel and a No. 1 L-shaped structural seat, a screw rod installed inside the rectangular box body through a bearing, an internally threaded slider sleeved on the outside of the screw rod, the top of the internally threaded slider is fixed to the No. 1 L-shaped structural seat by bolts, the top of the rectangular box body is fixed to the No. 2 L-shaped structural seat by bolts, the No. 2 L-shaped structural seat and one side of the No. 1 L-shaped structural seat are both fixed to a shaft by bolts, and a rubber sleeve is provided on the outside of the shaft through a bearing sleeve. The utility model can effectively adjust the tension of the yarn by pushing one end of the yarn wrapped around the outside of the No. 1 L-shaped structural seat to move through the screw rod, and by clamping the yarn between the wire clamping wheels in the reserved groove, the yarn will not fall off the side panel due to changes in tension." However, during use, it is necessary not only to manually supervise whether the yarn between the two rubber sleeves is loose, but also to constantly adjust the position of the internally threaded slider to keep the yarn taut, otherwise it will affect the use of the flat pulling machine, and it is more cumbersome to use. Utility Model Content

[0004] To address the deficiencies of the prior art, the present invention provides a tensioner for a flat drafting machine, which solves the problem of requiring manual and continuous adjustment of the position of the internal thread slider to keep the yarn taut, otherwise it will affect the use of the flat drafting machine.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A tensioner for a flat drafting machine, comprising a tensioner housing, a sliding groove formed in the tensioner housing, a limit seat slidably mounted in the sliding groove, a limit slot formed in the limit seat, a stretching device for automatically adjusting yarn tension mounted in the limit slot, and a driving device for driving the stretching device to start mounted in the limit seat;

[0007] The stretching device includes a limit block sliding in the limit groove, a movable groove is provided on the limit block, two symmetrical groups of No. 1 fixed rods are fixedly installed in the movable groove, a spring is sleeved on the No. 1 fixed rod, a group of L-shaped seats slidingly connected to the No. 1 fixed rod are slidably installed in the movable groove, a group of L-shaped seats is fixedly installed on the limit seat, and rubber sleeves are rotatably installed on the two groups of L-shaped seats, and multiple groups of winding grooves are provided on the rubber sleeves.

[0008] Preferably, two symmetrical groups of No. 2 contacts are fixedly mounted on the L-shaped seat on the No. 1 fixed rod, and two symmetrical groups of No. 1 contacts are fixedly mounted on the movable groove.

[0009] Preferably, the driving device includes a motor fixedly installed in the limit seat, the output end of the motor is fixedly installed with a threaded rod threadedly connected to the limit block, and the limit groove is fixedly installed with a second fixed rod slidingly connected to the limit seat.

[0010] Preferably, a limiting device is installed on the limiting seat, and the limiting device includes two groups of side panels fixedly installed on the limiting seat, one group of side panels is fixedly installed with a support block, and the limiting seat is fixedly installed with a No. 1 electric telescopic rod located below the support block, and the movable end of the No. 1 electric telescopic rod is fixedly installed with a pressure block.

[0011] Preferably, a wire guide device is installed on the side panel, and the wire guide device includes an L-shaped slot provided on the side panel, and two sets of symmetrical wire clamping wheels are rotatably installed in the side panel.

[0012] Preferably, two symmetrical groups of No. 2 electric telescopic rods are fixedly installed in the sliding groove, and the movable ends of the No. 2 electric telescopic rods are fixedly connected to the limit seats.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a stretching device, and the driving device is started by the contact of the No. 2 contact with the No. 1 contact on the limit block, so that the limit block approaches the direction of the motor. When the No. 2 contact on the other side of the L-shaped seat contacts the No. 1 contact on the limit block, the driving device stops and the spring is in a stressed contraction state. At this time, the yarn remains taut, thereby avoiding affecting the normal operation of the flat drafting machine and making the flat drafting machine work more stable.

[0015] 2. The utility model sets a limit device, and the contact between contact No. 1 and contact No. 2 starts the No. 1 electric telescopic rod and the motor. The No. 1 electric telescopic rod drives the pressure block to contact the support block to clamp the yarn. The No. 1 contact and contact No. 2 contact again, so that the No. 1 electric telescopic rod drives the pressure block to reset, and the motor stops working, thereby preventing the movement of the yarn at the entry point from affecting the yarn adjustment between the two rubber sleeves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the stretching device of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the lead-in device of the utility model.

[0021] In the figure: 1. Tensioner housing; 7. Sliding groove; 8. Limit seat; 9. Limit slot; 2. Stretching device; 21. Limit block; 22. Moving slot; 23. Fixed rod No. 1; 24. Spring; 25. L-shaped seat; 26. Rubber sleeve; 27. Winding groove; 28. Contact No. 1; 29. Contact No. 2; 3. Driving device; 31. Motor; 32. Threaded rod; 33. Fixed rod No. 2; 4. Limit device; 41. Side panel; 42. Support block; 43. Electric telescopic rod No. 1; 44. Pressing block; 5. Lead device; 51. L-shaped slot; 52. Wire clamping wheel; 6. Electric telescopic rod No. 2. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Example 1

[0024] Reference Figures 1-4This embodiment proposes a tensioner for a flat drafting machine. The setting of a stretching device solves the problem of needing to manually adjust the position of the internal thread slider to keep the yarn taut, otherwise it will affect the use of the flat drafting machine. The device includes a tensioner housing 1, a sliding groove 7 is provided in the tensioner housing 1, a limit seat 8 is slidably installed in the sliding groove 7, a limit slot 9 is provided in the limit seat 8, two symmetrical sets of No. 2 electric telescopic rods 6 are fixedly installed in the sliding groove 7, and the movable end of the No. 2 electric telescopic rod 6 is fixedly connected to the limit seat 8. The tensioner housing 1 is installed on the flat drafting machine, and the limit seat 8 is driven to move in the sliding groove 7 by starting the No. 2 electric telescopic rod 6 to adjust the tension of the yarn on both sides of the tensioner. A stretching device 2 for automatically adjusting the yarn tension is installed in the limiting groove 9, a driving device 3 for driving the stretching device 2 to start is installed in the limiting seat 8, and a lead device 5 is installed on the side plate 41. The lead device 5 includes an L-shaped slot 51 opened on the side plate 41, and two sets of symmetrical clamping wheels 52 are rotatably installed in the side plate 41. The yarn passes through the clamping wheel 52 at the limiting device 4 through the L-shaped slot 51 and is wound around the winding groove 27 in the two rubber sleeves 26 in turn, and then passes out from the clamping wheel 52 on the other side plate 41, thereby completing the connection of the yarn. The tightness of the yarn between the two rubber sleeves 26 can be automatically adjusted by the stretching device 2 to avoid affecting the normal operation of the flat drawing machine;

[0025] The stretching device 2 includes a limit block 21 that slides in the limit groove 9, and a moving groove 22 is provided on the limit block 21. Two symmetrical groups of No. 1 fixed rods 23 are fixedly installed in the moving groove 22. A spring 24 is sleeved on the No. 1 fixed rod 23. A group of L-shaped seats 25 that are slidably connected to the No. 1 fixed rod 23 are slidably installed in the moving groove 22. A group of L-shaped seats 25 are fixedly installed on the limit seat 8. Rubber sleeves 26 are rotatably installed on the two groups of L-shaped seats 25. The rubber sleeves 26 have multiple groups of winding grooves 27. Two symmetrical groups of No. 2 contacts 29 are fixedly installed on the L-shaped seat 25 on the No. 1 fixed rod 23, and two symmetrical groups of No. 1 contacts 28 are fixedly installed on the moving groove 22. In the initial state, the limit block 21 and the L-shaped seat 25 are respectively located in the limit groove 9 and the moving groove 22 away from the motor 31. On one side, spring 24 is in a stressed and contracted state, at which time the yarn is in a taut state. When the flat drafting machine is working, under the action of spring 24, as the yarn loosens, the L-shaped seat 25 continuously moves and resets in the moving groove 22, so that the No. 2 contact 29 on one side of the L-shaped seat 25 contacts the No. 1 contact 28 on the limit block 21, so that the drive device 3 is started, and the limit block 21 approaches the direction of the motor 31. Under the pull of the yarn, the L-shaped seat 25 moves in the moving groove 22, and when the No. 2 contact 29 on the other side of the L-shaped seat 25 contacts the No. 1 contact 28 on the limit block 21, the drive device 3 stops, and the spring 24 is in a stressed and contracted state. At this time, the yarn still remains taut, thereby avoiding affecting the normal operation of the flat drafting machine and making the flat drafting machine work more stably.

[0026] The driving device 3 includes a motor 31 fixedly installed in the limit seat 8, and a threaded rod 32 threadedly connected to the limit block 21 is fixedly installed at the output end of the motor 31. A second fixed rod 33 slidingly connected to the limit seat 8 is fixedly installed in the limit groove 9, so that the limit block 21 moves more stably in the limit groove 9. When the motor 31 is started, it drives the threaded rod 32 to rotate in the limit block 21, thereby causing the limit block 21 to move in the limit groove 9.

[0027] Example 2

[0028] On the basis of Example 1, the technical solution proposed in Example 1 is used to solve the disadvantage that the position of the internal thread slider needs to be manually adjusted to keep the yarn taut, otherwise it will affect the use of the flat drawing machine. When adjusting the tension of the yarn between the two rubber sleeves 26, if the yarn at the entry point moves, the yarn will become loose, affecting the stretching of the yarn.

[0029] Reference Figures 1-4, a limiting device 4 is installed on the limiting seat 8, and the limiting device 4 includes two groups of side plates 41 fixedly mounted on the limiting seat 8, one group of side plates 41 is fixedly mounted with a support block 42, and the limiting seat 8 is fixedly mounted with a No. 1 electric telescopic rod 43 located below the support block 42, and the movable end of the No. 1 electric telescopic rod 43 is fixedly mounted with a pressure block 44. When the yarn needs to be taut again, the No. 1 contact 28 contacts the No. 2 contact 29, so that the No. 1 electric telescopic rod 43 and the motor 31 are started, and the No. 1 electric telescopic rod 43 drives the pressure block 44 to contact with the support block 42 to clamp the yarn, and the No. 1 contact 28 contacts the No. 2 contact 29 again, so that the No. 1 electric telescopic rod 43 drives the pressure block 44 to reset, and the motor 31 stops working, thereby preventing the movement of the yarn at the entry point from affecting the yarn adjustment between the two rubber sleeves 26.

[0030] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensioner for a flat-pulling machine, comprising a tensioner housing (1), characterized in that: A sliding groove (7) is provided in the tensioner housing (1), a limiting seat (8) is slidably installed in the sliding groove (7), a limiting groove (9) is provided in the limiting seat (8), a stretching device (2) for automatically adjusting the yarn tension is installed in the limiting groove (9), and a driving device (3) for driving the stretching device (2) to start is installed in the limiting seat (8); The stretching device (2) comprises a limit block (21) sliding in a limit groove (9), a movable groove (22) is provided on the limit block (21), two symmetrical groups of No. 1 fixed rods (23) are fixedly installed in the movable groove (22), a spring (24) is sleeved on the No. 1 fixed rod (23), a group of L-shaped seats (25) slidably connected to the No. 1 fixed rod (23) are slidably installed in the movable groove (22), a group of L-shaped seats (25) is fixedly installed on the limit seat (8), and rubber sleeves (26) are rotatably installed on the two groups of L-shaped seats (25), and a plurality of winding grooves (27) are provided on the rubber sleeves (26).

2. A tensioner for a flat pulling machine according to claim 1, characterized in that: Two symmetrical groups of No. 2 contacts (29) are fixedly mounted on the L-shaped seat (25) on the No. 1 fixed rod (23), and two symmetrical groups of No. 1 contacts (28) are fixedly mounted on the movable groove (22).

3. A tensioner for a flat pulling machine according to claim 2, characterized in that: The driving device (3) comprises a motor (31) fixedly mounted in a limit seat (8); a threaded rod (32) threadedly connected to the limit block (21) is fixedly mounted on the output end of the motor (31); and a second fixed rod (33) slidably connected to the limit seat (8) is fixedly mounted in the limit slot (9).

4. A tensioner for a flat pulling machine according to claim 3, characterized in that: A limiting device (4) is installed on the limiting seat (8), and the limiting device (4) includes two groups of side plates (41) fixedly installed on the limiting seat (8), wherein a support block (42) is fixedly installed on one group of the side plates (41), and a No. 1 electric telescopic rod (43) located below the support block (42) is fixedly installed on the limiting seat (8), and a pressing block (44) is fixedly installed on the movable end of the No. 1 electric telescopic rod (43).

5. A tensioner for a flat pulling machine according to claim 4, characterized in that: A wire guide device (5) is installed on the side plate (41), and the wire guide device (5) includes an L-shaped slot (51) opened on the side plate (41). Two sets of symmetrical wire clamping wheels (52) are rotatably installed in the side plate (41).

6. A tensioner for a flat pulling machine according to claim 1, characterized in that: Two symmetrical groups of No. 2 electric telescopic rods (6) are fixedly installed in the sliding groove (7), and the movable ends of the No. 2 electric telescopic rods (6) are fixedly connected to the limiting seats (8).

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