An adjustment device for adjusting the sleeve fit clearance of a drum

Abstract

The utility model relates to textile machinery technical field discloses an adjusting device for adjusting sleeve cooperation gap of big round machine, sleeve is installed in big ding through lifting gear wheel and pressing plate, and adjusting device is arranged between sleeve and big ding, the adjusting device includes slider device, the slider device includes slider one, slider two and slider three, and one annular ring is formed by three kinds of sliders intercalation, wherein the first piece and the last piece are formed by slider one, and a sector block with a gap is formed, the second piece starts to use slider two and slider three to alternate in turn, and slider two and slider three are sector blocks, the inside of big ding is equipped with recess, and the annular ring formed by three kinds of sliders is located in recess, a threaded hole is designed outside big ding at recess position, adjusting screw is arranged in the threaded hole, and the screw passes threaded hole and abuts at the gap of two slider ones.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adjustment device for adjusting the fitting clearance of a sleeve on a large circular knitting machine. Background Technology

[0002] The sleeve is an important component of a double-sided circular knitting machine, mainly used to adjust the height of the upper and lower needle cylinders of the upper and lower cams. Therefore, the sleeve needs to be able to move up and down relative to the cam.

[0003] While the sleeve can move smoothly within the cauldron, the clearance between it and the cauldron cannot be too large. Otherwise, the rotation of the circular knitting machine will affect the stability of the upper cylinder and cause fabric defects. Currently, most circular knitting machine manufacturers use clearance fit for the sleeve and the cauldron, with the clearance controlled within 0-0.02mm. The smaller the clearance, the more stable the upper cylinder is when it works. Utility Model Content

[0004] To solve the technical problems existing in the prior art, this utility model provides an adjustment device for adjusting the fitting clearance of the sleeve of a large circular knitting machine.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adjustment device for adjusting the fitting clearance of a sleeve in a large circular knitting machine. The sleeve is installed inside a large cauldron via a lifting gear and a pressure plate. An adjustment device is provided between the sleeve and the cauldron. The adjustment device includes a slider device, which includes slider one, slider two, and slider three. The three sliders are spliced ​​together to form a ring. The first and last blocks are composed of slider one, forming a fan-shaped block with a notch. Starting from the second block, slider two and slider three are used alternately. Slider two and slider three are fan-shaped blocks. The inner side of the cauldron is provided with a groove. The ring composed of the three sliders is located in the groove. A threaded hole is designed on the outside of the cauldron corresponding to the position of the groove. An adjustment screw is installed in the threaded hole. The screw passes through the threaded hole and abuts against the notch of two slider one.

[0006] Preferably, a friction-reducing device is provided between the three types of sliders to reduce the frictional resistance between the sliders and make them slide more smoothly together.

[0007] Preferably, the friction reduction device includes a needle roller, and the second slider is provided with a needle roller mounting hole for placing the needle roller. The inclined surfaces of the first slider and the third slider respectively contact the needle roller on the second slider.

[0008] Preferably, the friction reduction device includes a steel ball, and the second slider is provided with a countersunk hole for placing the steel ball.

[0009] The advantages of this invention are: it allows for a suitable increase in the fit clearance between the sleeve and the cauldron, eliminating the need for a fixed fit and simplifying installation. After the sleeve is installed in the cauldron, the fit clearance between the cauldron and the sleeve can be controlled simply by adjusting the screw to control the sector-shaped slider device, making operation convenient. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a top view of the structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the slider device structure in Example 3;

[0013] Figure 4 for Figure 3 A magnified schematic diagram of the local structure of E in the diagram;

[0014] Figure 5 This is a schematic diagram of the slider device structure in Example 1;

[0015] Figure 6 for Figure 5 A magnified schematic diagram of a portion of the structure of A in the diagram;

[0016] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of BB;

[0017] Figure 8 This is a schematic diagram of the slider device structure in Example 2;

[0018] Figure 9 for Figure 8 A magnified schematic diagram of a local structure of C;

[0019] Figure 10 for Figure 9 A schematic diagram of the cross-sectional structure of DD.

[0020] In the diagram: 1. Large cauldron; 2. Lifting gear; 3. Pressure plate; 4. Sleeve; 5. Sliding device; 51. Sliding device 1; 52. Sliding device 2; 53. Sliding device 3; 54. Needle roller; 55. Steel ball; 6. Adjusting screw; 7. Nut; 8. Elephant trunk device; 81. Upper support; 82. Lower support; 83. Moving shaft. Detailed Implementation

[0021] The following examples, in conjunction with the appendix, illustrate the concepts. Figure 1-10 The technical solution of this utility model will be further described in detail below.

[0022] Example 1:

[0023] An adjusting device for adjusting the clearance of a sleeve fitting on a large circular knitting machine includes a large cauldron, a lifting gear, a pressure plate, a sleeve, a slider device, an adjusting screw, and a nut. The slider device includes slider one, slider two, slider three, and a needle roller.

[0024] The sleeve is installed into the inner hole of the cauldron via a lifting gear and a pressure plate. The lifting gear is installed inside the cauldron and held in place by the pressure plate. An elephant trunk device is installed between the sleeve and the cauldron. The elephant trunk device includes an upper support fixed to the cauldron and a lower support fixed to the sleeve. A movable shaft is fixed inside the lower support, and the other end of the movable shaft extends into the upper support, allowing it to move up and down within the upper support. The elephant trunk device connects the sleeve and the cauldron, restricting the sleeve's circumferential movement while allowing it to move up and down. The sleeve is connected to the lifting gear via a threaded connection. When the lifting gear rotates, the threaded connection causes the sleeve to rise and fall, resulting in relative vertical movement within the cauldron. This part is existing technology and not the focus of innovation, so it will not be elaborated further.

[0025] The inner hole of the cauldron has a groove at the top and bottom, and a threaded hole is designed on the outside of the cauldron corresponding to the groove.

[0026] slider device such as Figure 5-7 As shown, it consists of slider one, slider two, slider three, and needle rollers. Slider two has four needle roller mounting holes for holding the needle rollers. The three types of sliders are arranged in a ring, with slider one forming the first and last ring, and slider two and slider three alternating between the second and third rings. The inclined surfaces of slider one and slider three contact the needle rollers on slider two. The needle rollers reduce the frictional resistance between the sliders, making their sliding smoother.

[0027] The slider device is installed in the groove of the cauldron hole before the sleeve is inserted. After the sleeve is inserted into the cauldron, the gap between the cauldron and the sleeve is adjusted by adjusting the screw. When the adjusting screw passes through the threaded hole on the cauldron, it contacts the inclined surface of the two sliders. When the adjusting screw is screwed in further, slider one spreads to both sides under the squeezing action of the adjusting screw and the sleeve, causing slider two to spread towards the central axis of the sleeve under the squeezing action of slider three. During the spread of slider two, the fit clearance between slider two and the sleeve is reduced. When the fit clearance reaches the required level, the adjusting screw is tightened with a nut to prevent it from loosening.

[0028] When the two sets of slider devices are installed on the groove inside the cauldron, the upper slider two corresponds to the lower slider three, so that the squeezing force of the pair of sleeves of the upper and lower sliders is staggered in sequence, making the sleeve installation more stable.

[0029] Advantages: The fit clearance between the sleeve and the cauldron can be appropriately increased, eliminating the need for a fixed fit and simplifying installation. After the sleeve is installed in the cauldron, the fit clearance between the cauldron and the sleeve can be controlled simply by adjusting the slider device using the adjusting screw, making operation convenient.

[0030] Example 2

[0031] Since the design structure of the slider device can be diversified, in embodiment 2, it is designed as follows:

[0032] slider device such as Figure 8-10 As shown, the device consists of slider one, slider two, slider three, and a steel ball. Slider two has four countersunk holes for holding the steel ball. The three types of sliders are arranged in a ring, with slider one forming the first and last section, and slider two and slider three alternating between the second and third sections. The inclined surfaces of slider one and slider three contact the steel ball on slider two. The steel ball reduces friction between the sliders, making their sliding smoother.

[0033] Example 3

[0034] slider device such as Figure 3 , 4 As shown, it consists of slider 1, slider 2, and slider 3. The three sliders are used to form a ring, with the first and last blocks made of slider 1, and the second and third blocks alternating in sequence. The inclined surfaces of slider 1 and slider 3 are in contact with the inclined surface of slider 2.

[0035] The above content is a further detailed description of the technical solution provided in conjunction with the preferred embodiments of this patent. It should not be considered that the specific implementation of this utility model is limited to the above description. For those skilled in the art to which this patent pertains, several simple deductions or substitutions can be made without departing from the concept of this patent, and all of these should be considered to fall within the protection scope of this patent.

Claims

1. An adjusting device for adjusting the clearance of a sleeve fitting on a large circular knitting machine, characterized in that: An adjustment device is provided between the sleeve and the cauldron. The adjustment device includes a slider device, which consists of slider one, slider two, and slider three. The three sliders are spliced ​​together to form a ring. The first and last blocks are composed of slider one, forming a fan-shaped block with a notch. Starting from the second block, slider two and slider three are used alternately. Slider two and slider three are also fan-shaped blocks. The inner side of the cauldron has a groove. The ring composed of the three sliders is located in the groove. Corresponding to the position of the groove, a threaded hole is designed on the outside of the cauldron. An adjustment screw is installed in the threaded hole. The screw passes through the threaded hole and abuts against the notch of the two sliders one.

2. The adjusting device for adjusting the fitting clearance of a sleeve on a large circular knitting machine according to claim 1, characterized in that: A friction reduction device is provided between the three types of sliders.

3. The adjusting device for adjusting the fitting clearance of a sleeve on a large circular knitting machine according to claim 2, characterized in that: The friction reduction device includes a needle roller. The second slider is provided with a needle roller mounting hole for placing the needle roller. The inclined surfaces of the first slider and the third slider are in contact with the needle roller on the second slider.

4. The adjusting device for adjusting the fitting clearance of a sleeve on a large circular knitting machine according to claim 2, characterized in that: The friction reduction device includes a steel ball, and the second slider is provided with a countersunk hole for placing the steel ball.

Images