Eccentric adjusting structure of knitting machine needle selector base plate

Abstract

The utility model provides an eccentric adjusting structure of a knitting machine needle selector base plate, which comprises a needle selector base plate, an adjusting knob and a large plate, the adjusting knob is fixed on the needle selector base plate, the needle selector base plate is rotatably arranged on the large plate, the large plate is provided with a radial limiting chute, the bottom of the adjusting knob is provided with an eccentric shaft, and the eccentric shaft is connected with the adjusting knob. The eccentric shaft is arranged in the limiting sliding groove in a matched mode, the adjusting knob is rotated to enable the eccentric shaft to rotate, meanwhile, the eccentric shaft moves in the limiting sliding groove in the radial direction, and then the adjusting knob drives the needle selector base plate to rotate in the circumferential direction, so that rotation fine adjustment of the needle selector base plate can be achieved only by rotating the adjusting knob, and a large plate does not need to be directly pushed by hands. Adjustment is convenient and easy, and the adjustment precision can be accurately controlled.

Description

Technical Field

[0001] This utility model belongs to the field of knitting machine technology, and specifically relates to an eccentric adjustment structure for the base of a needle selector in a knitting machine. Background Technology

[0002] Currently, in the circular knitting machine industry, computerized jacquard circular knitting machines have become a very mature product on the market, and these machines have become a part of everyone's lives. Computerized jacquard machines produce a wide variety of products with unique patterns, and have become an indispensable part of the market, with demand for them increasing daily. A crucial component of computerized jacquard machines is the "jacquard needle selector," an essential and primary structural element of every machine.

[0003] Common needle selector mounting structures include a needle selector base and a needle selector chassis. The needle selector base is mounted on the needle selector chassis, which is then mounted on a large plate. During installation, the needle selector chassis requires fine-tuning by circumferential rotation to radially align each needle selector with its corresponding jacquard piece. The radial position of the needle selectors is then adjusted via the needle selector base. Current technology typically involves manual adjustment by the operator pushing the needle selector chassis. However, due to the large and heavy size of the chassis, adjustment is laborious and difficult to control, making it challenging to precisely align the needle selectors with the jacquard pieces. Utility Model Content

[0004] The purpose of this utility model is to provide an eccentric adjustment structure for the base of the needle selector of a knitting machine, making the position adjustment of the needle selector base more convenient and easier.

[0005] To achieve the above objectives, the solution of this utility model is as follows: An eccentric adjustment structure for a needle selector base of a knitting machine is provided, including a needle selector base, an adjustment knob, and a large plate. The adjustment knob is fixed on the needle selector base, and the needle selector base is rotatably mounted on the large plate. The large plate is provided with a radial limiting groove. An eccentric shaft is provided at the bottom of the adjustment knob, and the eccentric shaft engages within the limiting groove. When the adjustment knob is rotated, the eccentric shaft rotates, and simultaneously moves radially within the limiting groove, thereby causing the adjustment knob to drive the needle selector base to rotate circumferentially.

[0006] Furthermore, the needle selector chassis is provided with a through hole running vertically through it, the adjustment knob is fixed inside the through hole, and the eccentric shaft extends out of the through hole to fit into the limiting slide groove.

[0007] Furthermore, the outer circumference of the adjustment knob is provided with several annular grooves, and elastic O-rings are fitted on the annular grooves. The adjustment knob is fixed to the needle selector base by the interference fit between the O-rings and the through hole.

[0008] Furthermore, an adjustment element is fitted on the top of the adjustment knob, and the adjustment knob is rotated by rotating the adjustment element.

[0009] Furthermore, the top of the adjustment knob is provided with a hexagonal countersunk hole, and the adjustment component is an internal hex wrench. The adjustment knob is rotated by inserting the internal hex wrench into the hexagonal countersunk hole.

[0010] Furthermore, the bottom of the hexagonal countersunk hole is also provided with a threaded hole.

[0011] Furthermore, the top of the adjustment knob is provided with a hexagonal end, and the adjustment component is an external hexagonal wrench. The adjustment knob is rotated by placing the external hexagonal wrench on the hexagonal end.

[0012] Furthermore, the outer periphery of the needle selector base is evenly distributed with three or more limiting blocks. The limiting blocks are fixed on the large plate and abut against the outer periphery of the needle selector base to limit the radial displacement of the needle selector base, so that the needle selector base can be rotated and mounted on the large plate.

[0013] Furthermore, the needle selector chassis is provided with several arc-shaped limiting grooves, which extend vertically through the needle selector chassis. A limiting bolt is provided inside the arc-shaped limiting groove, and the limiting bolt is threadedly connected to the large disc to fix the needle selector chassis.

[0014] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0015] This invention uses an adjustment knob with an eccentric shaft to adjust the base of the needle selector. The adjustment knob is fixed to the base, and the eccentric shaft engages with a limiting groove on the large disc. When the adjustment knob is rotated, the eccentric shaft rotates within the limiting groove. Since the base can only rotate, and the eccentric shaft is eccentrically positioned, it also moves radially within the limiting groove while rotating, counteracting the radial movement of the adjustment knob. The adjustment knob can only deflect circumferentially, thus causing the base to rotate circumferentially until the needle selector is aligned with the jacquard piece. Therefore, this invention allows for fine-tuning of the needle selector base's rotation simply by rotating the adjustment knob, eliminating the need to manually push the large disc. Adjustment is convenient and easy, and allows for relatively precise control of the adjustment accuracy. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of an embodiment of the present invention;

[0017] Figure 2 This is a front view of an adjusting nut according to an embodiment of the present invention;

[0018] Figure 3 This is a top view of an adjusting nut according to an embodiment of the present invention;

[0019] Figure 4This is a cross-sectional view of another embodiment of the present invention;

[0020] Figure 5 This is a top view of the base of the needle selector of this utility model;

[0021] Figure 6 This is a partial top view of the base of the needle selector of this utility model.

[0022] Label Explanation:

[0023] 1. Needle selector base; 11. Through hole; 12. Arc-shaped limiting groove; 2. Adjusting knob; 21. Eccentric shaft; 22. Annular groove; 23. Hexagonal countersunk hole; 24. Threaded hole; 25. Hexagonal end; 3. Large plate; 31. Limiting slide; 4. Limiting block. Detailed Implementation

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-6 As shown, this application provides an eccentric adjustment structure for a needle selector base of a knitting machine, including a needle selector base 1, an adjustment knob 2, and a large plate 3. The adjustment knob 2 is fixed on the needle selector base 1. The needle selector base 1 is an annular disc structure and is rotatably mounted on the large plate 3. Multiple needle selectors (not shown in the figure) are mounted on the needle selector base 1. Rotating the needle selector base 1 can adjust the position of the needle selectors so that the needle selectors are radially aligned with the corresponding jacquard pieces (not shown in the figure). The large plate 3 is provided with a radial limiting groove 31, that is, the limiting groove 31 is opened along the diameter direction of the large plate 3. An eccentric shaft 21 is provided at the bottom of the adjustment knob 2. The eccentric shaft 21 can be integrally extended downward from an eccentric position at the bottom of the adjustment knob 2, or it can be separately set. This application does not limit this. The eccentric shaft 21 is fitted in the limiting groove 31, and the limiting groove 31 restricts the eccentric shaft 21 to only rotate and move along the diameter direction of the large plate 3.

[0026] When the adjustment knob 2 is turned, the eccentric shaft 21 rotates within the limiting groove 31. Since the needle selector base 1 can only rotate, and the eccentric shaft 21 is eccentrically positioned, it also moves radially within the limiting groove 31 while rotating. This counteracts the radial movement of the adjustment knob 2, causing the adjustment knob 2 to deflect circumferentially, thus driving the needle selector base 1 to rotate circumferentially until the needle selector and jacquard piece are aligned. Because the needle selector base 1 is roughly aligned with the needle selector and jacquard piece during installation, only minor adjustments are needed to precisely align them. Therefore, even a small offset travel of the adjustment knob 2 is sufficient to meet the adjustment requirements of the needle selector base 1. Furthermore, using the adjustment knob 2 eliminates the need to directly push the large disc 3 by hand, making adjustment convenient and easy, and allowing for relatively precise control of the adjustment accuracy.

[0027] like Figure 1-4 As shown, the needle selector base 1 has a through hole 11 extending vertically. The adjusting knob 2 is fixed inside the through hole 11, while the eccentric shaft 21 extends out of the through hole 11 to engage with the limiting groove 31. The adjusting knob 2 can be fixed inside the through hole 11 by an elastic locking structure or other fixing structure. In this application, the outer circumference of the adjusting knob 2 is provided with several annular grooves 22, and elastic O-rings (not shown in the figure) are fitted on the annular grooves 22. Specifically, the O-rings can be made of rubber. The adjusting knob 2 is fixed to the needle selector base 1 by the interference fit between the O-rings and the through hole 11. Preferably, there are two annular grooves 22 and two O-rings to ensure a stable connection between the adjusting knob 2 and the needle selector base 1, and to ensure that the adjusting knob 2 can drive the needle selector base 1 to rotate when it rotates. Moreover, using O-rings to fix the knob also facilitates the disassembly and assembly of the adjusting knob 2.

[0028] Furthermore, the top of the adjustment knob 2 is fitted with an adjustment element (not shown in the figure). Rotating the adjustment element to turn the adjustment knob 2 makes adjustment more convenient. The adjustment element can be an adjustment rod that is integrally or separately set with the top of the adjustment knob 2. Moving the adjustment rod will rotate the adjustment knob 2. In this application, the adjustment element is a wrench tool, such as a hex wrench, that fits with the top of the adjustment knob 2. Using a wrench tool makes adjustment more convenient and will not interfere with other structures on the knitting machine.

[0029] In one embodiment, such as Figure 1-3 As shown, the top of the adjustment knob 2 is provided with a hexagonal countersunk hole 23, and the adjustment component is an Allen wrench. After inserting the Allen wrench into the hexagonal countersunk hole 23, turning the wrench will drive the adjustment knob 2 to rotate. The bottom of the hexagonal countersunk hole 23 is also provided with a threaded hole 24. After adjustment, a bolt can be installed in the threaded hole 24 to prevent dust or other particles from clogging the countersunk hole.

[0030] In another embodiment, such as Figure 4 As shown, the top of the adjustment knob 2 is provided with a hexagonal end 25. The adjustment component is an external hexagonal wrench. After placing the external hexagonal wrench on the hexagonal end 25, turning the wrench will drive the adjustment knob 2 to rotate. The hexagonal end 25 can protrude from the through hole 11 or is also provided inside the through hole 11.

[0031] Key references Figure 5-6 The needle selector base 1 has three or more limiting blocks 4 evenly distributed around its outer periphery. Each limiting block 4 is fixed to the large plate 3 and abuts against the outer periphery of the needle selector base 1. Specifically, the limiting blocks 4 can be fixed to the large plate 3 with bolts. Through the abutment and limiting action of the limiting blocks 4, the needle selector base 1 can only rotate circumferentially, thus allowing it to rotate and be mounted on the large plate 3. Preferably, there are six limiting blocks 4 to ensure stable rotation of the needle selector base 1.

[0032] Furthermore, the needle selector base 1 is evenly distributed with several arc-shaped limiting grooves 12, which extend vertically through the base 1. A limiting bolt is installed within each arc-shaped limiting groove 12, and the limiting bolt is threadedly connected to the large disc 3 to fix the needle selector base 1. During adjustment, first loosen the limiting thread, then rotate the adjustment knob 2 for fine-tuning until the needle selector and jacquard piece are radially aligned, and then tighten the limiting bolt. The arc-shaped limiting groove 12 not only fixes the needle selector base 1 but also limits its rotational stroke. Since fine-tuning is sufficient, the length of the arc-shaped limiting groove 12 does not need to be long; it only needs to meet the fine-tuning requirements.

[0033] The number of the arc-shaped limiting groove 12 and the limiting bolts is preferably multiple, specifically six, to stably fix the needle selector base 1 on the large plate 3 and prevent the needle selector base 1 from shifting vertically and horizontally.

[0034] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. An eccentric adjustment structure for the base of a needle selector on a knitting machine, characterized in that: The device includes a needle selector base, an adjustment knob, and a large plate. The adjustment knob is fixed on the needle selector base, and the needle selector base is rotatably mounted on the large plate. The large plate is provided with a radial limiting groove. An eccentric shaft is provided at the bottom of the adjustment knob. The eccentric shaft fits into the limiting groove. When the adjustment knob is rotated, the eccentric shaft rotates and moves radially within the limiting groove, thereby causing the adjustment knob to drive the needle selector base to rotate circumferentially.

2. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 1, characterized in that: The needle selector base has a through hole running vertically through it. The adjustment knob is fixed inside the through hole, and the eccentric shaft extends out of the through hole to fit into the limiting slide groove.

3. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 2, characterized in that: The outer circumference of the adjustment knob is provided with several annular grooves, and elastic O-rings are fitted on the annular grooves. The adjustment knob is fixed to the needle selector base by the interference fit between the O-rings and the through hole.

4. The eccentric adjustment structure of the needle selector base of a knitting machine as described in any one of claims 1-3, characterized in that: The top of the adjustment knob is fitted with an adjustment element, and the adjustment knob is rotated by rotating the adjustment element.

5. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 4, characterized in that: The top of the adjustment knob is provided with a hexagonal countersunk hole, and the adjustment component is an internal hex wrench. The adjustment knob is rotated by inserting the internal hex wrench into the hexagonal countersunk hole.

6. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 5, characterized in that: The bottom of the hexagonal countersunk hole is also provided with a threaded hole.

7. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 4, characterized in that: The top of the adjustment knob is provided with a hexagonal end, and the adjustment component is an external hexagonal wrench. The adjustment knob is rotated by placing the external hexagonal wrench on the hexagonal end.

8. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 1, characterized in that: The outer periphery of the needle selector base is evenly distributed with three or more limiting blocks. The limiting blocks are fixed on the large plate and abut against the outer periphery of the needle selector base to limit the radial displacement of the needle selector base, so that the needle selector base can be rotated and mounted on the large plate.

9. The eccentric adjustment structure of the needle selector base of a knitting machine as described in claim 1, characterized in that: The needle selector base has several arc-shaped limiting grooves evenly distributed on it. The arc-shaped limiting grooves extend through the needle selector base from top to bottom. A limiting bolt is provided in the arc-shaped limiting groove. The limiting bolt is threadedly connected to the large disc to fix the needle selector base.

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