Needle withdrawing device in crochet machine

Abstract

The utility model discloses a needle withdrawing device in a crochet machine, which comprises a needle withdrawing seat, a rotating shaft and a rotating arm arranged on the rotating shaft through a rotating bearing, a pair of mutually parallel guide supporting through holes is arranged in the needle withdrawing seat, and a guide supporting rod is movably arranged in the guide supporting through holes in a penetrating manner through a linear bearing; a vertically-through rotating arm mounting groove is formed in the position, between the two guide bearing through holes, of the needle outlet base, rotating shaft mounting straight grooves vertically communicated with the rotating arm mounting groove are formed in the positions, on the two sides of the rotating arm mounting groove, of the needle outlet base respectively, and parallel rotation stopping faces are arranged on the two sides of the two ends of a rotating shaft respectively. The two ends of the rotating shaft are clamped in the rotating shaft installation straight grooves in the corresponding sides respectively, and cover plates are arranged at the positions, above the rotating shaft installation straight grooves, of the needle outlet base respectively. According to the needle withdrawing device in the crochet machine, the stress of the rotating arm is relatively balanced, and the service life of the rotating bearing is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to a crochet machine, in particular to a needle outlet device in the crochet machine. Background Art

[0002] like Figure 1 As shown, the needle ejection device in a conventional crochet machine generally comprises: a needle ejection seat 2, a rotating shaft 4 and a rotating arm 5 arranged on the rotating shaft 4 via a rotating bearing, the needle ejection seat 2 is provided with a guide support through hole on one side and a rotating arm mounting groove extending vertically therethrough on the other side, the needle ejection seat 2 is also provided with a rotating shaft mounting hole passing through the rotating arm mounting groove, the rotating shaft 4 is arranged in the rotating shaft mounting hole, and the needle ejection seat 2 is provided with tightening threads on both sides of the rotating arm mounting groove facing the rotating shaft mounting holes, respectively, which are communicated with the rotating shaft mounting holes. The hole 26 is provided with a tightening screw in the tightening threaded hole 26 (it is a common technique in the art and will not be described in detail here); the needle seat 2 is also provided with an oil filling port connected to the guide support through hole, and an oil nozzle 3 is provided in the oil filling port; the guide support through hole is provided with oil seals 23 at both ends thereof, and the guide support rod 1 is penetrated in the oil seals 23; the needle seat 2 is also provided with a baffle 21 for blocking the oil seal 23, and the baffle 21 is fixed to the needle seat 2 by a baffle fixing screw 22. In actual use, due to the uneven force on the rotating arm 5 when it swings, the rotating bearing is often damaged in less than one year of use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a needle-exiting device in a crochet machine which can greatly increase the service life of a rotating bearing.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a needle outlet device in a crochet machine, comprising: a needle outlet seat, a rotating shaft, and a rotating arm arranged on the rotating shaft through a rotating bearing, the needle outlet seat is provided with a pair of mutually parallel guide support through holes, and a guide support rod is movably inserted in the guide support through hole through a linear bearing, that is: a linear bearing is sleeved on the guide support rod and then movably inserted in the guide support through hole; the needle outlet seat is provided with a rotating arm mounting groove that passes through up and down between the two guide support through holes, and the needle outlet seat is provided with a rotating shaft mounting straight groove that is perpendicular to the rotating arm mounting groove on both sides of the rotating arm mounting groove, the rotating shaft mounting straight grooves on both sides have the same structure and the axis center lines coincide, and the two ends of the rotating shaft are respectively provided with mutually parallel anti-rotation surfaces on both sides, and the two ends of the rotating shaft are respectively clamped in the rotating shaft mounting straight groove on the corresponding side, and the needle outlet seat is provided with a cover plate above the rotating shaft mounting straight groove.

[0005] As a preferred embodiment, in the needle output device of the crochet machine, a shaft embedment depth notch corresponding to the shaft mounting straight groove is provided on the needle output seat, the shaft mounting straight groove is arranged on the bottom wall of the corresponding shaft embedment depth notch, and the cover plate is arranged in the corresponding shaft embedment depth notch.

[0006] As a preferred embodiment, in the needle output device of a crochet machine, the specific installation method of the cover plate is: installation threaded holes are respectively opened on the bottom wall of the shaft buried deep notch on both sides of the shaft installation straight groove, and the cover plate is opened with installation through holes corresponding to the installation threaded holes, and the cover plate fixing screws are selected to pass through the installation through holes on the cover plate and tightened in the corresponding installation threaded holes on the bottom wall of the shaft buried deep notch.

[0007] As a preferred solution, in the needle outlet device of the crochet machine, a tightening threaded hole is provided on the cover plate facing the rotating shaft, and a tightening screw is provided in the tightening threaded hole.

[0008] As a preferred solution, in the needle ejection device of the crochet machine, the rotating arm mounting groove is centrally arranged between the two guide support through holes.

[0009] As a preferred solution, in the needle ejection device of the crochet machine, the rotating shaft is also provided with positioning pieces on both sides of the rotating arm.

[0010] As a preferred solution, in the needle ejection device of the crochet machine, the rotating bearing is a cylindrical bearing.

[0011] As a preferred embodiment, in the needle output device of the crochet machine, the needle output seat is also provided with oil filling ports which are connected with the corresponding guide support through holes, and the oil filling ports are provided with oil nozzles. The guide support through holes are respectively provided with oil seals at the two end ports thereof, and the guide support rod is passed through the oil seals.

[0012] As a preferred solution, in the needle outlet device of the crochet machine, the needle outlet seat is provided with baffles corresponding to the corresponding oil seals on the end faces at both ends thereof.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model provides a guide support through hole on each side of the needle outlet seat, and arranges the rotating arm between the two guide support through holes, so that the rotating arm is more stable during the rotation process, thereby greatly extending the service life of the rotating bearing.

[0015] 2. The utility model provides a shaft installation straight groove on the needle outlet seat, and provides anti-rotation surfaces on both sides of both ends of the shaft, so that the shaft can be reliably installed in the shaft installation straight groove without shaking.

[0016] 3. The utility model provides a shaft buried depth notch corresponding to the shaft installation straight groove on the needle outlet seat, and the shaft installation straight groove is provided on the bottom wall of the shaft buried depth notch, so that the axis line of the shaft is close to or located in the plane where the axis lines of the two guide support rods are located, so that the rotation of the rotating arm is smoother.

[0017] 4. The utility model further improves the rotation stability of the rotating arm by centrally opening the rotating arm installation groove between two guide support through holes.

[0018] 5. The rotating shaft of the utility model is respectively provided with positioning sleeves on both sides of the rotating arm, which can prevent the rotating bearing from colliding with the cover plate and ensure that the cover plate is reliably fixed on the needle outlet seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the needle outlet device in the crochet machine described in the background technology.

[0020] Figure 1 The reference numerals in the drawings are: 1, guide support rod, 2, needle seat, 21, baffle, 22, baffle fixing screw, 23, oil seal, 26, top tightening threaded hole, 3, oil nozzle, 4, rotating shaft, 5, rotating arm.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the needle outlet device in the crochet machine of the utility model.

[0022] Figure 3 It is a partial structural schematic diagram of the needle outlet device in the crochet machine of the utility model.

[0023] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA axis.

[0024] Figures 2 to 4 The reference numerals in the drawings are: 1, guide support rod, 2, needle seat, 201, rotating arm mounting groove, 202, shaft mounting straight groove, 21, baffle, 22, baffle fixing screw, 23, oil seal, 3, oil nozzle, 4, shaft, 5, rotating arm, 6, cover plate, 66, tightening threaded hole, 7, cover plate fixing screw, 8, linear bearing, 9, positioning piece, 10, cylindrical bearing. DETAILED DESCRIPTION

[0025] The specific implementation scheme of the needle outlet device in the crochet machine described in the utility model is described in detail below with reference to the accompanying drawings.

[0026] like Figures 2 to 4 As shown, the needle outlet device in a crochet machine described in the utility model comprises: a needle outlet seat 2, a rotating shaft 4, and a rotating arm 5 arranged on the rotating shaft 4 through a cylindrical bearing 10 serving as a rotating bearing, a pair of mutually parallel guide support through holes are provided in the needle outlet seat 2, a guide support rod 1 is movably penetrated through the guide support through hole through a linear bearing 10, that is: a linear bearing 10 is sleeved on the guide support rod 1 and movably arranged in the guide support through hole; a rotating arm mounting groove 201 which passes through from top to bottom is provided in the center of the two guide support through holes on the needle outlet seat 2, rotating shaft buried depth notches are provided on both sides of the rotating arm mounting groove 201 on the needle outlet seat 2, a rotating shaft mounting straight groove 202 which is perpendicular to the rotating arm mounting groove 201 is provided on the bottom wall of the rotating shaft buried depth notch, and the rotating shaft mounting straight groove 202 on both sides has the same structure , the axis lines coincide, and the two ends of the rotating shaft 4 are respectively provided with mutually parallel anti-rotation surfaces on both sides (which belongs to the conventional technology in this field and will not be described in detail here), and the two ends of the rotating shaft 4 are respectively clamped in the rotating shaft mounting straight groove 202 on the corresponding side, and the needle seat 2 is respectively provided with a cover plate 6 in the rotating shaft buried depth notch above the rotating shaft mounting straight groove 202. The specific installation method of the cover plate 6 is as follows: the bottom wall of the rotating shaft buried depth notch is respectively provided with mounting threaded holes on both sides of the rotating shaft mounting straight groove 202 (which belongs to the conventional technology in this field and will not be described in detail here), and the cover plate 6 is provided with mounting through holes corresponding to the mounting threaded holes, and the cover plate fixing screws 7 are selected to pass through the mounting through holes on the cover plate 6 and are tightened in the corresponding mounting threaded holes on the bottom wall of the rotating shaft buried depth notch (which belongs to the conventional technology in this field and will not be described in detail here). In this embodiment, the cover plate 6 is provided with a tightening threaded hole 66 facing the rotating shaft 4, and a tightening screw is provided in the tightening threaded hole 66 (it is a common technique in this field and will not be described in detail here); the rotating shaft 4 is also provided with positioning pieces 9 on both sides of the rotating arm 5; the needle seat 2 is also provided with oil filling ports communicating with the corresponding guide support through holes, and an oil nozzle 3 is provided in the oil filling port; the guide support through hole is provided with oil seals 23 at its two end ports, and the guide support rod 1 is penetrated in the oil seal 23 (it is a common technique in this field and will not be described in detail here) The needle outlet seat 2 is provided with baffles 21 corresponding to the oil seals 23 on the end faces at both ends thereof, and the baffles 21 are fixed to the needle outlet seat 2 by baffle fixing screws 22. The specific arrangement is as follows: a baffle fixing threaded hole is provided on the needle outlet seat 2, and a fixing through hole corresponding to the baffle fixing screw 22 is provided on the baffle 21. The fixing screws 22 are selected to pass through the fixing through holes on the baffle 21 and are tightened in the corresponding baffle fixing threaded holes on the needle outlet seat 2 (which belongs to the conventional technology in this field and will not be described in detail here), so that the baffle 21 blocks the corresponding oil seal 23.

[0027] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications made to the shape, structure, characteristics and spirit described in the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A needle ejection device in a crochet machine, comprising: The needle outlet seat, the rotating shaft and the rotating arm arranged on the rotating shaft by a rotating bearing are characterized in that a pair of mutually parallel guide support through holes are opened in the needle outlet seat, and a guide support rod is movably inserted in the guide support through hole through a linear bearing, that is: a linear bearing is sleeved on the guide support rod and then movably inserted in the guide support through hole; a rotating arm mounting groove which passes through up and down is opened in the needle outlet seat between the two guide support through holes, and the needle outlet seat is respectively provided with a rotating shaft mounting straight groove which is perpendicular to the rotating arm mounting groove on both sides of the rotating arm mounting groove, the rotating shaft mounting straight grooves on both sides have the same structure and the axis center lines coincide, and the two ends of the rotating shaft are respectively provided with mutually parallel anti-rotation surfaces on both sides, and the two ends of the rotating shaft are respectively clamped in the rotating shaft mounting straight groove on the corresponding side, and the needle outlet seat is respectively provided with a cover plate above the rotating shaft mounting straight groove.

2. The needle outlet device in a crochet machine according to claim 1, characterized in that: The needle outlet seat is provided with a shaft embedment depth notch corresponding to the shaft installation straight groove, the shaft installation straight groove is arranged on the bottom wall of the corresponding shaft embedment depth notch, and the cover plate is arranged in the corresponding shaft embedment depth notch.

3. The needle outlet device in a crochet machine according to claim 2, characterized in that: The specific installation method of the cover plate is: installation threaded holes are respectively opened on both sides of the shaft installation straight groove on the bottom wall of the shaft buried deep notch, and installation through holes corresponding to the installation threaded holes are opened on the cover plate. The cover plate fixing screws are selected to pass through the installation through holes on the cover plate and tightened in the corresponding installation threaded holes on the bottom wall of the shaft buried deep notch.

4. The needle outlet device in a crochet machine according to claim 3, characterized in that: A tightening threaded hole is also provided on the cover plate facing the rotating shaft, and a tightening screw is arranged in the tightening threaded hole.

5. The needle outlet device in a crochet machine according to claim 1, characterized in that: The rotating arm installation groove is centrally arranged between the two guide support through holes.

6. The needle outlet device in a crochet machine according to claim 1, characterized in that: The rotating shaft is also sleeved with positioning pieces on both sides of the rotating arm.

7. The needle outlet device in a crochet machine according to claim 1, characterized in that: The rotating bearing is a cylindrical bearing.

8. A needle outlet device in a crochet machine according to any one of claims 1 to 7, characterized in that: The needle seat is also provided with oil filling ports which are connected with the corresponding guide support through holes, and the oil filling ports are provided with oil nozzles. The guide support through holes are respectively provided with oil seals at the ports at both ends thereof, and the guide support rod is penetrated in the oil seals.

9. The needle ejection device in a crochet machine according to claim 8, characterized in that: The needle outlet seat is provided with baffles corresponding to the corresponding oil seals on the end surfaces at both ends thereof.

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