Needle cover adjusting mechanism of circular knitting machine

Abstract

The utility model discloses a needle cover adjusting mechanism of a circular knitting machine. The needle cover adjusting mechanism comprises a needle cylinder, a position adjusting main body, a sleeve seat and a needle cover, the position adjusting body is optimally arranged, the ring sleeve wraps and is fixed to the outer surface of the needle cylinder, the first longitudinal moving structure and the second longitudinal moving structure are arranged on the left side and the right side of the ring sleeve in a penetrating mode respectively, and the bottoms of the first longitudinal moving structure and the second longitudinal moving structure are both connected with the needle cover. Under the action of the servo motor, the transmission assembly drives the pushing blocks to longitudinally move on the side portion of the sliding seat through the shifting assembly, the needle cover can be stably and longitudinally shifted and adjusted under the action of the pushing blocks on the two sides, the limiting effect is achieved in the mode that the worm and the worm gear are matched, the stability of the needle cover after adjustment is guaranteed, operation is easy and convenient, and the working efficiency is improved. And the adjusting efficiency is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the field of circular knitting machines, in particular to a needle cover adjusting mechanism of a circular knitting machine. Background Art

[0002] The general circular knitting machine is to weave by knitting needles along the needle cover, the needle groove of the needle cylinder and the track of the knitting triangle, and the knitted fabric falls through the gap between the needle cover and the needle cylinder and moves with the cloth winding mechanism;

[0003] At present, Chinese patent application number: CN201820556553.9 discloses a circular knitting machine needle cover adjustment mechanism, including a needle cylinder and a needle cover located below the needle cylinder, two mounting blocks are symmetrically fixedly installed on the needle cylinder, and a first mounting plate and a second mounting plate are fixedly installed on the sides of the two mounting blocks away from each other, respectively, and a first connecting plate and a second connecting plate are symmetrically fixedly installed on the needle cover, and the bottoms of the first mounting plate and the second mounting plate are fixedly installed with limit plates, and the tops of the first connecting plate and the second connecting plate are provided with limit grooves, and the two limit plates are slidably installed in the two limit grooves respectively, and a bearing seat is fixedly installed on the side of the second mounting plate away from the first mounting plate, and a rotating groove is provided at the bottom of the bearing seat, and a rotating column is rotatably installed in the rotating groove, and a first screw is fixedly installed at the bottom of the rotating column. The utility model is convenient for adjusting the gap between the needle cover and the needle cylinder, saves time and effort, has a simple structure, and is easy to use;

[0004] However, the needle cover adjustment mechanism of the prior art circular knitting machine is usually adjusted manually during use, and the adjustment is performed after the machine is stopped. The operation is cumbersome and inefficient, and the stability after adjustment is relatively poor. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a circular knitting machine needle cover adjustment mechanism.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a circular knitting machine needle cover adjustment mechanism, including a needle cylinder, a positioning body, a sleeve and a needle cover, a sleeve is arranged on the bottom side of the needle cylinder, a needle cover is installed inside the sleeve, and an adjusting body is arranged on the outer surface of the needle cylinder, the adjusting body includes a ring sleeve, a first longitudinal movement structure and a second longitudinal movement structure, the ring sleeve is wrapped and fixed on the outer surface of the needle cylinder, and the first longitudinal movement structure and the second longitudinal movement structure are respectively penetrated on the left and right sides of the ring sleeve, and the bottoms of the first longitudinal movement structure and the second longitudinal movement structure are both connected to the needle cover.

[0007] Preferably, the first longitudinal movement structure and the second longitudinal movement structure have the same size and are symmetrically arranged in the middle of the ring sleeve.

[0008] Preferably, the first longitudinal movement structure includes a servo motor, a transmission assembly connected to the rear side of the servo motor, a shift assembly connected to one side of the transmission assembly, a push block connected to one side of the bottom of the shift assembly, and a slide seat fixed to the other side of the bottom of the shift assembly, one side of the push block is longitudinally slidably connected to the slide seat, the shift assembly is fixed through the inner side of the ring sleeve, and the bottom end of the push block is fastened to the needle cover.

[0009] Preferably, the transmission assembly includes a frame cover fastened to the servo motor on the front side, a rotating shaft rod rotatably connected to the bottom side of the frame cover, a worm integrally formed at the rear end of the rotating shaft rod, a first supporting block supported at the middle part of the outer surface of the rotating shaft rod, a second supporting block supported at both ends of the worm, and a worm wheel meshed with the top side of the worm, the bottoms of the first supporting block and the second supporting block are fixed to the frame cover, one end of the rotating shaft rod is connected to the output end of the servo motor, and the middle part of the worm wheel is connected to the displacement assembly.

[0010] Preferably, the shifting assembly includes a cover seat passing through and fixed on the inner side of the ring sleeve, a first bevel gear rotatably connected to the left side of the cover seat, a second bevel gear meshing with the bottom side of the first bevel gear, and a threaded rod connected to the middle side of the bottom of the second bevel gear, the bottom of the threaded rod is connected to the push block, and the left side of the first bevel gear is connected to the worm gear.

[0011] Preferably, the threaded rod is composed of two parts, the upper part is a columnar structure, and the outer surface of the lower part is provided with a thread groove.

[0012] Preferably, a groove is provided on the left side of the push block, and a protrusion is provided on the right side of the slide seat, and the groove is wrapped around the outer side of the protrusion and is longitudinally slidably connected thereto.

[0013] Preferably, an internal thread block is arranged at the upper middle side of the push block, and the lower half of the threaded rod is inserted into the inner side of the internal thread block and is threadedly connected thereto.

[0014] Preferably, the threaded rod is made of aluminum alloy.

[0015] Beneficial effects of the utility model:

[0016] The utility model optimizes the setting of a positioning main body, a ring sleeve is wrapped and fixed on the outer surface of the syringe, and the first longitudinal movement structure and the second longitudinal movement structure are respectively penetrated on the left and right sides of the ring sleeve, and the bottoms of the first longitudinal movement structure and the second longitudinal movement structure are connected to the needle cover. Under the action of the servo motor, the transmission component drives the push block to move longitudinally on the side of the slide seat through the shifting component, so that the needle cover can be stably longitudinally displaced and adjusted under the action of the push blocks on both sides. The cooperation mode of the worm and the worm wheel is adopted to play a limiting role, thereby ensuring the stability of the needle cover after adjustment. The operation is simple and convenient, and the adjustment efficiency is improved to a certain extent. 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 positioning main body of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the first longitudinal shifting structure of the utility model;

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

[0021] Figure 5 It is a structural schematic diagram of the shifting assembly of the utility model.

[0022] Among them: syringe-1, adjustment body-2, sleeve-3, needle cover-4, ring sleeve-21, first longitudinal movement structure-22, second longitudinal movement structure-23, servo motor-221, transmission assembly-222, shifting assembly-223, push block-224, slide seat-225, frame cover-2221, rotating shaft rod-2222, worm-2223, first supporting block-2224, second supporting block-2225, worm wheel-2226, cover seat-2231, first bevel gear-2232, second bevel gear-2233, threaded rod-2234, internal thread block-2241. 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 and Figure 2 The utility model provides a circular knitting machine needle cover adjustment mechanism, including a needle cylinder 1, an adjustment body 2, a sleeve 3 and a needle cover 4. The sleeve 3 is arranged on the bottom side of the needle cylinder 1, and the needle cover 4 is installed inside the sleeve 3. The adjustment body 2 is arranged on the outer surface of the needle cylinder 1. The adjustment body 2 includes a ring sleeve 21, a first longitudinal movement structure 22 and a second longitudinal movement structure 23. The ring sleeve 21 is wrapped and fixed on the outer surface of the needle cylinder 1 to play a role in installation and positioning. The first longitudinal movement structure 22 and the second longitudinal movement structure 23 are respectively penetrated on the left and right sides of the ring sleeve 21. The bottoms of the first longitudinal movement structure 22 and the second longitudinal movement structure 23 are connected to the needle cover 4 to drive the needle cover 4 to shift longitudinally on both sides to ensure the stability of the adjustment position of the needle cover 4. The first longitudinal movement structure 22 and the second longitudinal movement structure 23 have the same structure size and are symmetrically arranged in the middle of the ring sleeve 21 to facilitate synchronous action.

[0025] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides a circular knitting machine needle cover adjustment mechanism, the first longitudinal movement structure 22 comprises a servo motor 221, a transmission assembly 222 connected to the rear side of the servo motor 221, a displacement assembly 223 connected to one side of the transmission assembly 222, a push block 224 connected to one side of the bottom of the displacement assembly 223, and a slide 225 fixed to the other side of the bottom of the displacement assembly 223, one side of the push block 224 is longitudinally slidably connected to the slide 225, under the action of the servo motor 221, the transmission assembly 222 drives the push block 224 to move longitudinally on the side of the slide 225 through the displacement assembly 233, the displacement assembly 223 penetrates and is fixed to the inner side of the ring sleeve 21, and the bottom end of the push block 224 is fastened to the needle cover 4, so that the needle cover 4 can be longitudinally displaced and adjusted under the action of the push block 224;

[0026] The transmission assembly 222 includes a frame cover 2221 fastened to the servo motor 221 at the front side, a rotating shaft rod 2222 rotatably connected to the bottom side of the frame cover 2221, a worm 2223 integrally formed at the rear end of the rotating shaft rod 2222, a first supporting block 2224 supported at the middle part of the outer surface of the rotating shaft rod 2222, a second supporting block 2225 supported at both ends of the worm 2223, and a worm wheel 2226 meshed with the top side of the worm 2223. The bottoms of the first supporting block 2224 and the second supporting block 2225 are both fixed to the frame cover 2221, one end of the rotating shaft rod 2222 is connected to the output end of the servo motor 221, and the middle part of the worm wheel 2226 is connected to the shift assembly 223. Under the action of the servo motor 221, the rotating shaft rod 2222 drives the worm 2223 to rotate, and the worm 2223 drives the shift assembly 223 to move through the cooperation with the worm wheel 2226.

[0027] The shift assembly 223 includes a cover seat 2231 that penetrates and is fixed to the inner side of the ring sleeve 21, a first bevel gear 2232 that is rotatably connected to the left side of the cover seat 2231, a second bevel gear 2233 that is meshed with the bottom side of the first bevel gear 2232, and a threaded rod 2234 made of aluminum alloy that is connected to the middle side of the bottom of the second bevel gear 2233. The bottom of the threaded rod 2234 is connected to the push block 224, and the left side of the first bevel gear 2232 is connected to the worm gear 2226. Under the action of the worm gear 2234, the first bevel gear 2232 drives the threaded rod 2234 to rotate through the cooperation with the second bevel gear 233.

[0028] The threaded rod 2234 is composed of two parts, the upper part is a columnar structure, and the outer surface of the lower part is provided with a thread groove. A groove is provided on the left side of the push block 224, and a protrusion is provided on the right side of the slide seat 225, and the groove is wrapped around the outer side of the protrusion and is longitudinally slidably connected with it. An internal thread block 2241 is provided on the upper middle side of the push block 224, and the lower half of the threaded rod 2234 is inserted into the inner side of the internal thread block 2241 and is threadedly connected with it. When the threaded rod 2234 rotates, the push block 224 is driven to move longitudinally through cooperation with the internal thread block 2241.

[0029] Here’s how it works:

[0030] First, the design is installed and fixed at the position where it needs to be used through the syringe 1 and the sleeve 3 to use the design;

[0031] Secondly, when it is necessary to adjust the position of the needle cover 4, the servo motors 221 in the first longitudinal movement structure 22 and the second longitudinal movement structure 23 are controlled to move synchronously. After the servo motor 221 is started, it drives the rotating shaft rod 2222 and the worm 2223 to rotate inside the first supporting block 2224 and the second supporting block 2225, and the worm 2223 drives the worm wheel 2226 to rotate. Under the action of the worm wheel 2234, the first bevel gear 2232 drives the threaded rod 2234 to rotate through the cooperation with the second bevel gear 233. When the threaded rod 2234 rotates, it drives the push block 224 to shift longitudinally on the slide seat 225 through the cooperation with the internal threaded block 2241, so that the height position of the needle cover 4 can be changed for use by longitudinally adjusting the position of the push block 224.

[0032] The utility model provides a circular knitting machine needle cover adjustment mechanism, which optimizes the setting of a positioning main body 2, a ring sleeve 21 wrapped and fixed on the outer surface of a needle cylinder 1, a first longitudinal movement structure 22 and a second longitudinal movement structure 23 are respectively penetrated on the left and right sides of the ring sleeve 21, the bottoms of the first longitudinal movement structure 22 and the second longitudinal movement structure 23 are both connected to the needle cover 4, and under the action of a servo motor 221, a transmission component 222 drives a push block 224 to move longitudinally on the side of a slide seat 225 through a shifting component 233, so that the needle cover 4 can be stably longitudinally displaced and adjusted under the action of the push blocks 224 on both sides, and the cooperation mode of the worm 2223 and the worm wheel 2226 is adopted to play a limiting role, thereby ensuring the stability of the needle cover 4 after adjustment, and the operation is simple and convenient, and the adjustment efficiency is improved to a certain extent.

[0033] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described 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 present invention shall be included in the protection scope of the present invention.

Claims

1. A circular knitting machine needle cover adjustment mechanism, comprising a needle cylinder (1), a sleeve (3) being arranged on the bottom side of the needle cylinder (1), and a needle cover (4) being installed inside the sleeve (3); Features: The invention also comprises a positioning body (2) arranged on the outer surface of the syringe (1), the positioning body (2) comprising a ring sleeve (21), a first longitudinal displacement structure (22) and a second longitudinal displacement structure (23), the ring sleeve (21) is wrapped and fixed on the outer surface of the syringe (1), the first longitudinal displacement structure (22) and the second longitudinal displacement structure (23) are respectively penetrated on the left and right sides of the ring sleeve (21), and the bottoms of the first longitudinal displacement structure (22) and the second longitudinal displacement structure (23) are connected to the needle cover (4).

2. A circular knitting machine needle cover adjustment mechanism according to claim 1, characterized in that: The first longitudinal movement structure (22) and the second longitudinal movement structure (23) have the same structural size and are symmetrically arranged in the middle of the ring sleeve (21).

3. A circular knitting machine needle cover adjustment mechanism according to claim 1, characterized in that: The first longitudinal movement structure (22) comprises a servo motor (221), a transmission assembly (222) connected to the rear side of the servo motor (221), a shift assembly (223) connected to one side of the transmission assembly (222), a push block (224) connected to one side of the bottom of the shift assembly (223), and a slide seat (225) fixed to the other side of the bottom of the shift assembly (223), one side of the push block (224) is longitudinally slidably connected to the slide seat (225), the shift assembly (223) penetrates and is fixed to the inner side of the ring sleeve (21), and the bottom end of the push block (224) is fastened to the needle cover (4).

4. A circular knitting machine needle cover adjustment mechanism according to claim 3, characterized in that: The transmission assembly (222) comprises a frame cover (2221) whose front side is fastened to the servo motor (221), a rotating shaft rod (2222) rotatably connected to the bottom side of the frame cover (2221), a worm (2223) integrally formed at the rear end of the rotating shaft rod (2222), a first supporting block (2224) supported at the middle part of the outer surface of the rotating shaft rod (2222), a second supporting block (2225) supported at both ends of the worm (2223), and a worm wheel (2226) meshed with the top side of the worm (2223), wherein the bottoms of the first supporting block (2224) and the second supporting block (2225) are both fixed to the frame cover (2221), one end of the rotating shaft rod (2222) is connected to the output end of the servo motor (221), and the middle part of the worm wheel (2226) is connected to the displacement assembly (223).

5. A circular knitting machine needle cover adjustment mechanism according to claim 4, characterized in that: The displacement assembly (223) comprises a cover seat (2231) penetrating and fixed on the inner side of the ring sleeve (21), a first bevel gear (2232) rotatably connected to the left side of the inside of the cover seat (2231), a second bevel gear (2233) meshing with the bottom side of the first bevel gear (2232), and a threaded rod (2234) connected to the middle side of the bottom of the second bevel gear (2233), the bottom of the threaded rod (2234) is connected to the push block (224), and the left side of the first bevel gear (2232) is connected to the worm gear (2226).

6. A circular knitting machine needle cover adjustment mechanism according to claim 5, characterized in that: The threaded rod (2234) is composed of two parts, the upper part is a columnar structure, and the outer surface of the lower part is provided with a thread groove.

7. A circular knitting machine needle cover adjustment mechanism according to claim 3, characterized in that: The push block (224) is provided with a groove on the left side, and the slide seat (225) is provided with a protrusion on the right side, and the groove wraps around the outside of the protrusion and is longitudinally slidably connected thereto.

8. A circular knitting machine needle cover adjustment mechanism according to claim 5, characterized in that: An internal thread block (2241) is provided at the upper middle side of the push block (224), and the lower half of the threaded rod (2234) is inserted into the inner side of the internal thread block (2241) and is threadedly connected thereto.

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