Novel guide bar transverse movement reset tension spring mechanism

Abstract

The utility model relates to a novel guide bar traversing reset tension spring mechanism which comprises a connecting shaft, a connecting sleeve, a nut structural member, a pressure spring and a bolt, one end of the connecting shaft is provided with a first shaft head, the other end of the connecting shaft is provided with a second shaft head, and the outer wall of the nut structural member is in threaded connection with the inner wall of the connecting sleeve. The connecting shaft is further provided with a first plane bearing and a second plane bearing, the bolt is connected with the end, away from the first shaft head, of the connecting sleeve, the connecting shaft is provided with an external thread part, the second shaft head is a nut sleeve, the inner wall of the nut sleeve is provided with an internal thread part matched with the external thread part, and the rotating stopping mechanism is used for limiting rotation of the nut sleeve. After the technical scheme is adopted, the nut sleeve is in threaded connection with the connecting shaft, the compression spring can be compressed to a certain degree by rotating the nut sleeve, and then the nut sleeve is fixed through the rotation stopping mechanism to prevent the nut sleeve from rotating, so that the nut sleeve is prevented from loosening, namely, the second shaft head is not easy to loosen.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel guide bar transverse reset tension spring mechanism and belongs to the technical field of warp knitting machines. BACKGROUND

[0002] The realization of the guide bar transverse movement depends on the guide bar transverse movement mechanism, which is a mechanism for controlling the guide bar to complete the front and back needle transverse movement. The reset tension spring mechanism is used to realize the reset of the guide bar. For example, in the Chinese utility model with the authorized announcement number CN219547227U and the name of "a warp knitting machine guide bar transverse reset tension spring device", a warp knitting machine guide bar transverse reset tension spring device is disclosed, which comprises a pull rope combination, a connecting shaft, a connecting sleeve, a nut structure, a compression spring and a bolt. One end of the connecting shaft has a first shaft head, and the other end of the connecting shaft has a second shaft head. The first shaft head is connected with the pull rope combination, and the second shaft head extends into the connecting sleeve. The nut structure and the compression spring are sleeved on the connecting shaft. The outer wall of the nut structure is threadedly connected with the inner wall of the connecting sleeve. The first plane bearing and the second plane bearing are also installed on the connecting shaft. The first plane bearing, the nut structure, the second plane bearing and the compression spring are located between the first shaft head and the second shaft head. The first plane bearing, the nut structure, the second plane bearing and the compression spring are sequentially distributed along the axial direction from the first shaft head to the second shaft head. The first shaft head, the first plane bearing, the nut structure, the second plane bearing, the compression spring and the second shaft head are adjacent to each other and are pressed and fitted. The bolt is connected with the end of the connecting sleeve away from the first shaft head.

[0003] The reset tension spring device of the above-mentioned patent can flexibly rotate under the rolling structure of the first plane bearing and the second plane bearing, that is, under the action of the first plane bearing and the second plane bearing, the nut structure rotates very labor-saving and convenient, and there is no large resistance generated by the compression spring pressing, and there is no situation of laborious rotation. However, since the compression spring exerts a certain elastic force on the second shaft head (nut), during the repeated rotation of the nut structure, the compression spring also forms a certain torsion force on the second shaft head, and after long-term use, the second shaft head will loosen, thereby affecting the play of the compression spring.

[0004] Based on the above problems, the applicant has researched the above problems and produced the present case. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a novel guide bar transverse reset tension spring mechanism with a second shaft head that is not easy to loosen.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The novel guide bar transverse reset spring mechanism comprises a connecting shaft, a connecting sleeve, a nut structure, a compression spring and a bolt, one end of the connecting shaft is provided with a first shaft head, the other end of the connecting shaft is provided with a second shaft head, the second shaft head extends into the connecting sleeve, the nut structure and the compression spring are sleeved on the connecting shaft, the outer wall of the nut structure is threadedly connected with the inner wall of the connecting sleeve, the first plane bearing and the second plane bearing are further arranged on the connecting shaft, the first plane bearing, the nut structure, the second plane bearing and the compression spring are located between the first shaft head and the second shaft head, the first plane bearing, the nut structure, the second plane bearing and the compression spring are sequentially arranged along the axial direction from the first shaft head to the second shaft head, the first shaft head, the first plane bearing, the nut structure, the second plane bearing, the compression spring and the second shaft head are in abutting pressure fit with each other, the bolt is connected with the end of the connecting sleeve away from the first shaft head, the connecting shaft is provided with an external thread part, the second shaft head is a nut sleeve, the inner wall of the nut sleeve is provided with an internal thread part matched with the external thread part, and a rotation limiting mechanism for limiting the rotation of the nut sleeve is further arranged.

[0008] As a preferred mode of the utility model, the rotation limiting mechanism is a rotation limiting pin, a first through hole is arranged on the nut sleeve and extends along the radial direction of the nut sleeve, a second through hole is arranged on the connecting shaft and extends along the radial direction of the connecting shaft, and the rotation limiting pin is arranged in the first through hole and the second through hole.

[0009] As a preferred mode of the utility model, the rotation limiting pin penetrates the first through hole and the second through hole, and the two ends of the rotation limiting pin form limiting parts for limiting the sliding of the rotation limiting pin.

[0010] As a preferred mode of the utility model, the rotation limiting mechanism is a welding part connecting the nut sleeve and the connecting shaft.

[0011] As a preferred mode of the utility model, a gasket is arranged between the nut sleeve and the compression spring.

[0012] As a preferred mode of the utility model, a third plane bearing is further arranged on the connecting shaft, and the third plane bearing is arranged between the compression spring and the nut sleeve.

[0013] As a preferred mode of the utility model, the first shaft head is connected with a pull rope connecting part.

[0014] As a preferred mode of the utility model, the bolt is threadedly connected with the connecting sleeve, and the bolt is arranged in the connecting sleeve.

[0015] The technical scheme of the utility model adopts thread connection between the nut sleeve and the connecting shaft, the compression spring can be compressed to a certain degree by rotating the nut sleeve, then the nut sleeve is fixed by the rotation stopping mechanism, the nut sleeve is prevented from rotating, the nut sleeve is prevented from loosening, and the second shaft head is prevented from loosening. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the first embodiment of the utility model.

[0017] Figure 2 It is a structural schematic view of the second embodiment of the utility model.

[0018] Figure 3 It is a structural schematic view of the nut sleeve in the utility model.

[0019] Figure 4 It is a structural schematic view of the connecting shaft in the utility model (the second shaft head is not shown).

[0020] In the drawing:

[0021] Connecting shaft 10 First shaft head 11

[0022] Second shaft head 12 Second perforation 13

[0023] Nut structure 20 First plane bearing 31

[0024] Second plane bearing 32 Third plane bearing 33

[0025] Connecting sleeve 40 Compression spring 50

[0026] Nut sleeve 60 First perforation 61

[0027] Pull rope joint 70 Bolt 80

[0028] Rotation stopping pin 90 DETAILED DESCRIPTION

[0029] In order to better understand the technical scheme of the utility model, the following more detailed elaboration is carried out in combination with the embodiment.

[0030] Refer to Figures 1 to 2The utility model discloses a novel gill bar transverse reset spring mechanism, including connecting shaft 10, connecting sleeve 40, nut structure 20, compression spring 50 and bolt 80, one end of connecting shaft 10 has first axle head 11, the other end of connecting shaft 10 has second axle head 12, second axle head 12 stretches into connecting sleeve 40, nut structure 20 and compression spring 50 are set on connecting shaft 10. The outer wall of nut structure 20 is connected in screw thread with the inner wall of connecting sleeve 40, first plane bearing 31 and second plane bearing 32 are still installed on connecting shaft 10, first plane bearing 31, nut structure 20, second plane bearing 32 and compression spring 50 all are located between first axle head 11 and second axle head 12, first plane bearing 31, nut structure 20, second plane bearing 32 and compression spring 50 are sequentially distributed along the axial direction from first axle head 11 to second axle head 12, first axle head 11, first plane bearing 31, nut structure 20, second plane bearing 32, compression spring 50 and second axle head 12 are adjacent to each other and are pressed fit, specifically first plane bearing 31 is clamped between first axle head 11 and nut structure 20, second plane bearing 32 is clamped between nut structure 20 and compression spring 50, and compression spring 50 is clamped between second plane bearing 32 and second axle head 12. Bolt 80 is connected with the end of connecting sleeve 40 away from first axle head 11, the outer thread part is arranged on connecting shaft 10, second axle head 12 is nut sleeve 60, the inner wall of nut sleeve 60 is provided with the inner thread part matched with the outer thread part, and nut sleeve 60 is connected in screw thread on the outer thread part. The utility model also includes a rotation-stopping mechanism for limiting the rotation of the nut sleeve 60. When the nut sleeve 60 is rotated to a predetermined position, the rotation of the nut sleeve 60 is limited by the rotation-stopping mechanism, so that the nut sleeve 60 is not easy to loosen.

[0031] As a preferred mode of the utility model, the rotation-stopping mechanism is a rotation-stopping pin 90, a first perforation 61 is provided on the nut sleeve 60 and extends along the radial direction of the nut sleeve 60, a second perforation 13 is provided on the connecting shaft 10 and extends along the radial direction of the connecting shaft 10, and the rotation-stopping pin 90 is inserted into the first perforation 61 and the second perforation 13. In the utility model, the rotation-stopping pin 90 can be inserted into the first perforation 61 and the second perforation 13 in an interference fit manner to limit the axial movement of the nut sleeve 60. As a preferred mode of the utility model, the rotation-stopping pin 90 penetrates the first perforation 61 and the second perforation 13, the two ends of the rotation-stopping pin 90 form limiting portions for limiting the sliding off of the rotation-stopping pin 90, for example, the two ends of the rotation-stopping pin 90 can be riveted to expand outward and form the limiting portions, so that the rotation-stopping pin 90 cannot come off from the first perforation 61 and the second perforation 13.

[0032] As the preferred mode of the utility model, the rotation stopping mechanism is a welding part connecting the nut sleeve 60 and the connecting shaft 10, when the nut sleeve 60 rotates to a predetermined position, the nut sleeve 60 is welded on the connecting shaft 10 by welding, thereby forming the welding part.

[0033] As the preferred mode of the utility model, the nut sleeve 60 and the compression spring 50 are provided with a gasket.

[0034] Referring to Figure 2 As another preferred mode of the utility model, a third plane bearing 33 is sleeved on the connecting shaft 10, the third plane bearing 33 is arranged between the compression spring 50 and the nut sleeve 60, specifically, the two ends of the third plane bearing 33 in the axial direction are respectively abutted on the compression spring 50 and the nut sleeve 60, by means of the rotation of the third plane bearing 33, the rotation torsion between the compression spring 50 and the nut sleeve 60 can be reduced, thereby making the nut sleeve 60 more difficult to rotate and loosen, protecting the rotation stopping pin 90 and reducing the risk of deformation of the rotation stopping pin 90.

[0035] As the preferred mode of the utility model, the first shaft head 11 is connected with a pull rope connecting part 70.

[0036] As the preferred mode of the utility model, the bolt 80 is screwed with the connecting sleeve 40, and the bolt 80 is inserted into the connecting sleeve 40.

[0037] The protection scope of the utility model is not limited to the embodiment, and any similar transformation thereof is regarded as not departing from the protection scope of the utility model.

Claims

1. A novel transverse repositioning spring mechanism for a bar, comprising a connecting shaft, a connecting sleeve, a nut structure, a compression spring and a bolt, the connecting shaft having a first shaft head at one end and a second shaft head at the other end, the second shaft head extending into the connecting sleeve, the nut structure and the compression spring being sleeved on the connecting shaft, the outer wall of the nut structure being threadedly connected with the inner wall of the connecting sleeve, the connecting shaft further having a first plane bearing and a second plane bearing mounted thereon, the first plane bearing, the nut structure, the second plane bearing and the compression spring being located between the first shaft head and the second shaft head, the first plane bearing, the nut structure, the second plane bearing and the compression spring being sequentially distributed along the axial direction from the first shaft head to the second shaft head, the first shaft head, the first plane bearing, the nut structure, the second plane bearing, the compression spring and the second shaft head being in abutting pressure fit with each other, the bolt being connected with the end of the connecting sleeve away from the first shaft head, characterized in that: The connecting shaft is provided with an external thread part, the second shaft head is a nut sleeve, the inner wall of the nut sleeve is provided with an internal thread part matched with the external thread part, and the stop mechanism for limiting rotation of the nut sleeve is further included.

2. The novel guide bar traverse reset tension spring mechanism according to claim 1, characterized in that: The stop mechanism is a stop pin, the nut sleeve is provided with a first through hole extending along the radial direction of the nut sleeve, the connecting shaft is provided with a second through hole extending along the radial direction of the connecting shaft, and the stop pin is arranged in the first through hole and the second through hole.

3. The novel guide bar traverse reset tension spring mechanism according to claim 2, characterized in that: The stop pin penetrates the first through hole and the second through hole, and the two ends of the stop pin form limiting parts for limiting the stop pin from slipping off.

4. The novel guide bar traverse reset tension spring mechanism according to claim 1, characterized in that: The stop mechanism is a welding part connecting the nut sleeve and the connecting shaft.

5. The novel guide bar traverse reset tension spring mechanism according to claim 3, characterized in that: A gasket is arranged between the nut sleeve and the compression spring.

6. The novel guide bar traverse reset tension spring mechanism according to any one of claims 1 to 5, characterized in that: A third plane bearing is further arranged on the connecting shaft, and the third plane bearing is arranged between the compression spring and the nut sleeve.

7. The novel guide bar traverse reset tension spring mechanism according to claim 6, wherein: The first shaft head is connected with a pull rope connecting part.

8. The novel guide bar traverse reset tension spring mechanism according to claim 7, characterized in that: The bolt is in threaded connection with the connecting sleeve, and the bolt is arranged in the connecting sleeve.

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