Upper dial needle pressing device of circular knitting machine

Abstract

The utility model discloses an upper dial needle pressing device of a circular knitting machine. The upper dial needle pressing device comprises a supporting plate, a limiting piece and a pressing structure. The pressing structure is optimally arranged, the servo motor serves as a power source, the threaded rod is made to rotate through the servo motor, and the threaded rod is matched with the inner threaded sleeve seat to enable the sliding seat to transversely move in the sliding block. The pressing blocks and the top blocks of the first pressing component and the second pressing component on the sliding base synchronously and transversely move to make contact with the spinning needle, and due to the fact that the upper side and the lower side of the spinning needle are different in thickness, after the top blocks of the first pressing component make contact with the spinning needle, the pressing blocks push the shifting blocks downwards; the shifting block drives the second pressing part to move outwards to be in contact with the spinning needle, so that the spinning needle is subjected to contact pressing on the upper side and the lower side, and the pressing effect on the spinning needle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of circular knitting machines, in particular to an upper needle disc needle pressing device of a circular knitting machine. Background Art

[0002] Circular knitting machine, scientifically known as circular weft knitting machine, has developed rapidly due to its multiple loop forming systems, high speed, high output, fast pattern change, good fabric quality, few processes and strong product adaptability.

[0003] At present, Chinese patent application number: CN202221901469.9 discloses a needle pressing mechanism of a single-sided circular knitting machine, comprising a fixed disk, a groove is processed on the top of the fixed disk, a horizontal plate is arranged on the top of the fixed disk, a fixing mechanism is arranged on the top of the horizontal plate, and a positioning mechanism is arranged on the top of the horizontal plate. The needle pressing mechanism of the single-sided circular knitting machine can cancel the tight fit between the bolt and the shell by rotating the bolt in the fixing mechanism, so that the corresponding rack can be docked with the corresponding port rod, and the horizontal plate and the rubber pad can be stably fixed on the top of the fixed disk, so as to press the textile needle placed on the inner wall of the groove, so as to ensure the stability of the fixing of the textile needle during long-term fixed work;

[0004] However, the needle pressing mechanism of the prior art is mostly manually adjusted during use, which is cumbersome to operate. In addition, since the upper and lower sides of the textile needles have different thicknesses, the textile needles are usually pressed at a single location, resulting in a relatively poor stabilization effect of the textile needle pressing. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an upper needle disc needle pressing device of a circular knitting machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a needle pressing device of an upper needle disc of a circular knitting machine, comprising a support plate, a limiting plate and a pressing structure, wherein the left side of the front of the support plate is fixedly connected to the limiting plate, and the right side of the front of the support plate is connected to the pressing structure, and the pressing structure comprises a support fixed to the support plate at the rear side, a driving assembly fastened to the right side of the front of the support, a locking assembly connected to the left end of the driving assembly, a slider connected to the upper and lower sides of the locking assembly, and a cover plate fastened to the front side of the locking assembly, and the rear side of the slider is fixed to the support plate.

[0007] Preferably, the driving assembly includes a cover seat fixed to the support at the rear side, a servo motor fastened to the middle inner side of the cover seat, a threaded rod connected to the left output end of the servo motor, an internally threaded sleeve threadedly connected to the outer surface of the threaded rod, and a limiting sleeve wrapped around and sliding on the outer surface of the internally threaded sleeve, and the left end of the internally threaded sleeve is connected to the locking assembly.

[0008] Preferably, protrusions are provided on both upper and lower sides of the internal threaded sleeve, and the protrusions penetrate the inner side of the limiting sleeve and are laterally slidably connected thereto.

[0009] Preferably, the sliding block is in a trapezoidal structure, and inclined surfaces are provided on both upper and lower sides of the locking assembly, and the inclined surfaces are located inside the trapezoidal structure and are laterally slidably connected thereto.

[0010] Preferably, the locking assembly includes a sliding seat connected to the driving assembly in the middle of the right side, a shift block longitudinally slidably connected to the right side of the sliding seat, and a first clamping component and a second clamping component respectively slidingly contacting the upper and lower sides of the left side of the shift block, the rear side of the sliding seat is transversely slidably connected to the support plate, and the rear sides of the first clamping component and the second clamping component are both transversely slidably connected to the sliding seat.

[0011] Preferably, a first pillar is provided on the right side of the front part of the slide, and a second pillar and a third pillar are respectively provided on the upper and lower parts of the left side of the front part of the slide, the shift block is wrapped around the outer surface of the first pillar and is longitudinally slidably connected to it, and the first clamping part and the second clamping part are respectively wrapped around the outside of the second pillar and the third pillar and are transversely slidably connected to them.

[0012] Preferably, the first pressing component and the second pressing component have the same structure and size, and are symmetrically arranged on the upper and lower sides of the middle of the slide seat.

[0013] Preferably, the first clamping component includes a pressure block whose rear side is laterally slidably connected to the slide seat, a sliding groove opened on the inner side of the left part of the pressure block, a spring installed on the right side inside the sliding groove, a top block connected to the other end of the spring, and a through groove opened on the middle side of the pressure block, and the top block is slidably connected to the inner side of the sliding groove.

[0014] Preferably, a rubber sheet is provided on the left side of the top block.

[0015] Beneficial effects of the utility model:

[0016] The utility model optimizes the setting of the pressure structure, takes a servo motor as a power source, and rotates the threaded rod through the servo motor. The threaded rod cooperates with the internal threaded sleeve to make the slide move laterally in the slide block. The pressure block and the top block of the first pressure component and the second pressure component on the slide move laterally synchronously to contact the textile needle. Since the upper and lower sides of the textile needle are different in thickness, after the top block of the first pressure component contacts the textile needle, the pressure block pushes the displacement block downward, and the displacement block drives the second pressure component to move outward and contact the textile needle, thereby contacting and pressing the textile needle on the upper and lower sides to ensure the needle pressing effect on the textile needle. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a structural schematic diagram of the pressure position structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the clamping assembly of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the first pressing component of the utility model.

[0022] Among them: support plate-1, limiting plate-2, pressure structure-3, support-31, drive component-32, positioning component-33, slider-34, cover plate-35, cover seat-321, servo motor-322, threaded rod-323, internal threaded sleeve-324, limiting sleeve-325, slide-331, shift block-332, first clamping component-333, second clamping component-334, first pillar-3311, second pillar-3312, third pillar-3313, pressure block-3331, slide groove-3332, spring-3333, top block-3334, through groove-3335. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0024] See also Figure 1 The utility model provides a needle pressing device for an upper needle disc of a circular knitting machine, comprising a support plate 1, a limiting plate 2 and a pressing structure 3. The limiting plate 2 is fixedly connected to the left front portion of the support plate 1, and the pressing structure 3 is connected to the right front portion of the support plate 1. The thickness of different positions on the surface of the textile needle is different, so the positions of different thicknesses on the upper and lower sides of the textile needle are pressed and positioned by the pressing structure 3 to ensure the needle pressing effect on the textile needle.

[0025] See also Figure 1 and Figure 2 The utility model provides a needle pressing device for an upper needle disc of a circular knitting machine. The pressing structure 3 includes a support 31 fixed to a support plate 1 at the rear side, a driving assembly 32 fastened to the right side of the front part of the support 31, a clamping assembly 33 connected to the left end of the driving assembly 32, a slider 34 connected to the upper and lower sides of the clamping assembly 33, and a cover sheet 35 fastened to the front side of the clamping assembly 33. The rear side of the slider 34 is fixed to the support plate 1. The slider 34 is a trapezoidal structure, and the upper and lower sides of the clamping assembly 33 are provided with inclined surfaces, and the inclined surfaces are located on the inner side of the trapezoidal structure and are laterally slidably connected to it.

[0026] See also Figure 2 and Figure 3The utility model provides an upper needle plate pressing device of a circular knitting machine, wherein a driving assembly 32 comprises a cover seat 321 fixed to a support 31 at the rear side, a servo motor 322 fastened to the middle part of the inner side of the cover seat 321, a threaded rod 323 connected to the left output end of the servo motor 322, an internally threaded sleeve seat 324 threadedly connected to the outer surface of the threaded rod 323, and a limiting sleeve 325 wrapped and slid on the outer surface of the internally threaded sleeve seat 324, the left end portion of the internally threaded sleeve seat 324 is connected to the positioning assembly 33, and the threaded rod 323 drives the internally threaded sleeve seat 324 to move through the servo motor 322, and the internally threaded sleeve seat 324 is provided with protrusions on both the upper and lower sides, and the protrusions penetrate the inner side of the limiting sleeve 325 and are connected with the horizontal sliding connection therewith, so as to play a limiting role and ensure that the internally threaded sleeve seat 324 is stably driven to move horizontally.

[0027] See also Figure 3 , Figure 4 and Figure 5 The utility model provides an upper needle plate pressing device of a circular knitting machine, wherein the positioning assembly 33 comprises a slide seat 331 connected to the driving assembly 32 at the middle part on the right side, a shift block 332 longitudinally slidably connected to the right side of the slide seat 331, and a first pressing component 333 and a second pressing component 334 respectively slidably contacting the upper and lower sides of the left part of the shift block 332. The rear side of the slide seat 331 is slidably connected to the support plate 1 in a transverse manner. Under the action of the driving assembly 32, the slide seat 331 is displaced in a transverse manner. The rear sides of the first pressing component 333 and the second pressing component 334 are both slidably connected to the slide seat 331 in a transverse manner. The first pressing component 333 and the second pressing component 334 have the same structure and size, and are symmetrically arranged at the upper and lower sides of the middle part of the slide seat 331. After the slide seat 331 moves, the first pressing component 333 and the second pressing component 334 are caused to perform a transverse action.

[0028] A first pillar 3311 is provided on the right side of the front of the slide 331, and a second pillar 3312 and a third pillar 3313 are provided on the upper and lower parts of the left side of the front of the slide 331, respectively. The shift block 332 is wrapped around the outer surface of the first pillar 3311 and is connected to the longitudinal sliding connection therewith. The first pressing component 333 and the second pressing component 334 are respectively wrapped around the outer sides of the second pillar 3312 and the third pillar 3313 and are connected to the transverse sliding connection therewith, playing a limiting role, ensuring that the first pillar 3311 makes a slight longitudinal sliding so as to adjust the extended length of the first pressing component 333 and the second pressing component 334, so as to adapt to the different thickness parts of the textile needle for pressing and positioning.

[0029] The first clamping component 333 includes a pressure block 3331 which is slidably connected to the slide seat 331 at the rear side, a slide groove 3332 opened on the inner side of the left part of the pressure block 3331, a spring 3333 installed on the right side of the slide groove 3332, a top block 3334 connected to the other end of the spring 3333 and a through groove 3335 opened on the middle side of the pressure block 3331. The top block 3334 is slidably connected to the inner side of the slide groove 3332. A rubber sheet is arranged on the left side of the top block 3334. The top block 3334 can move its position inside the slide groove 3332 through the spring 3333, thereby having a certain buffering and resetting effect to ensure the stability of the pressing needle.

[0030] Here’s how it works:

[0031] First, the design is installed at the position where it needs to be used through the support plate 1, and then the textile needle is passed through the inner side of the limiting plate 2 to use the textile needle;

[0032] Secondly, when it is necessary to press the textile needle, the servo motor 322 is controlled to start. After the servo motor 322 is started, it drives the threaded rod 323 to rotate. The threaded rod 323 cooperates with the internal threaded sleeve 324 to make the internal threaded sleeve 323 move laterally on the inner side of the limit sleeve 325. The movement of the internal threaded sleeve 323 drives the slide 331 to move laterally in the slide block 34, so that the pressing block 3331 and the top block 3334 of the first pressing component 333 and the second pressing component 334 on the slide 311 move laterally synchronously to contact the textile needle. The upper and lower sides of the textile needle are different in thickness. After the top block 3334 of the first pressing component 333 contacts the textile needle, the pressing block 3331 pushes the displacement block 332 downward, and the displacement block 332 drives the second pressing component 334 to move outward, thereby contacting and pressing the textile needle on the upper and lower sides to ensure the stability of the pressing needle.

[0033] The above description is only a preferred example of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A needle pressing device for an upper needle disc of a circular knitting machine, comprising a support plate (1), wherein a limiting plate (2) is fixedly connected to the left front portion of the support plate (1); Features: The invention also comprises a pressure structure (3) connected to the right front side of the support plate (1), the pressure structure (3) comprising a support (31) whose rear side is fixed to the support plate (1), a driving assembly (32) fastened to the right front side of the support (31), a locking assembly (33) connected to the left end of the driving assembly (32), a slider (34) connected to the upper and lower sides of the locking assembly (33), and a cover plate (35) fastened to the front side of the locking assembly (33), the rear side of the slider (34) being fixed to the support plate (1).

2. The needle pressing device of the upper needle disc of the circular knitting machine according to claim 1, characterized in that: The driving assembly (32) comprises a cover seat (321) fixed to the support (31) at the rear side, a servo motor (322) fastened to the middle part of the inner side of the cover seat (321), a threaded rod (323) connected to the left output end of the servo motor (322), an internal threaded sleeve (324) threadedly connected to the outer surface of the threaded rod (323), and a limiting sleeve (325) wrapped and slidably on the outer surface of the internal threaded sleeve (324), and the left end of the internal threaded sleeve (324) is connected to the locking assembly (33).

3. The needle pressing device of the upper needle disc of the circular knitting machine according to claim 2, characterized in that: The internal thread sleeve (324) is provided with protrusions on both the upper and lower sides, and the protrusions penetrate the inner side of the limiting sleeve (325) and are laterally slidably connected thereto.

4. The needle pressing device of the upper needle disc of the circular knitting machine according to claim 1, characterized in that: The slide block (34) is in a trapezoidal structure, and the upper and lower sides of the locking assembly (33) are both provided with inclined surfaces, and the inclined surfaces are located inside the trapezoidal structure and are laterally slidably connected thereto.

5. The needle pressing device of the upper needle plate of the circular knitting machine according to claim 1, characterized in that: The locking assembly (33) comprises a slide seat (331) connected to the driving assembly (32) at the middle of the right side, a displacement block (332) longitudinally slidably connected to the right side of the inside of the slide seat (331), and a first clamping component (333) and a second clamping component (334) respectively slidably contacting the upper and lower sides of the left part of the displacement block (332); the rear side of the slide seat (331) is transversely slidably connected to the support plate (1); and the rear sides of the first clamping component (333) and the second clamping component (334) are both transversely slidably connected to the slide seat (331).

6. The needle pressing device of the upper needle plate of the circular knitting machine according to claim 5, characterized in that: The first pillar (3311) is arranged on the right side of the front part of the slide seat (331), and the second pillar (3312) and the third pillar (3313) are arranged on the upper and lower parts of the left side of the front part of the slide seat (331), respectively; the displacement block (332) is wrapped around the outer surface of the first pillar (3311) and is longitudinally slidably connected thereto; the first clamping component (333) and the second clamping component (334) are respectively wrapped around the outer sides of the second pillar (3312) and the third pillar (3313) and are transversely slidably connected thereto.

7. The needle pressing device of the upper needle plate of the circular knitting machine according to claim 5, characterized in that: The first pressing component (333) and the second pressing component (334) have the same structure and size, and are symmetrically arranged on the upper and lower sides of the middle of the sliding seat (331).

8. The needle pressing device of the upper needle disc of the circular knitting machine according to claim 5, characterized in that: The first clamping component (333) includes a pressure block (3331) whose rear side is laterally slidably connected to the slide seat (331), a slide groove (3332) opened on the inner side of the left part of the pressure block (3331), a spring (3333) installed on the right side inside the slide groove (3332), a top block (3334) connected to the other end of the spring (3333) and a through groove (3335) opened on the middle side of the pressure block (3331), and the top block (3334) is slidably connected to the inner side of the slide groove (3332).

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