Needle narrowing precision adjusting mechanism of circular knitting machine

Abstract

The utility model relates to a narrowing precision adjusting mechanism of a circular knitting machine, which comprises a triangular seat, two groups of sliding grooves are arranged on the plane side of the triangular seat, a sliding structure is arranged in each sliding groove, each sliding structure comprises a sliding block positioned in the corresponding sliding groove, a threaded groove is arranged on the side wall of each sliding block, and the threaded grooves are matched with the sliding blocks. And a rotating groove is formed in the position, corresponding to the threaded groove, of the inner wall of the sliding groove, an adjusting mechanism is arranged in the rotating groove, a first sliding groove is formed in the upper end of the interior of the sliding block, and a second sliding groove is formed in the lower end of the interior of the sliding block. The utility model relates to the technical field of circular weaving machines. According to the narrowing precision adjusting mechanism of the circular knitting machine, the height of the runway plate and the height of the needle passage plate are adjusted through rotation of the screw, compared with the prior art, the vertical sliding precision of the runway plate can be effectively improved, and then the narrowing precision can be effectively improved when knitting needles are narrowed through the runway plate.

Description

Technical Field

[0001] The utility model relates to the technical field of large circular knitting machines, in particular to a stitch withdrawing precision adjusting mechanism for a circular knitting machine. Background Art

[0002] The large circular knitting machine is also called a circular weft knitting machine. The circular knitting machine includes a needle cylinder, intermediate needles, knitting needles, a cam holder, a disk, and a selector. The upper inner side of the cam holder is provided with a triangular first needle groove, and the lower end is provided with a second needle groove. A plurality of cam holders are arranged along the circumference of the disk, so that a plurality of first needle grooves are connected to form a track, and a plurality of second needle grooves are connected to form a runway. When the needle cylinder rotates, the selector controls some of the intermediate needles to be connected to the knitting needles, so that the knitting needles participate in the work. The convex points of the intermediate needles move along the runway, driving the convex points of the knitting needles to move along the track in a triangular curve, and finally the knitting needles are withdrawn through the stitch withdrawing points at the outlets of the first needle grooves to complete the jacquard knitting work.

[0003] Chinese Patent Publication No. CN216550958U discloses a computer jacquard cam for a circular knitting machine, which relates to the technical field of circular knitting machines. The technical solution mainly includes a cam plate. The upper side of one side of the cam plate is provided with a triangular first needle groove for restricting the movement track of the knitting needle. The cam plate is provided with a second needle groove below the first needle groove for restricting the movement track of the intermediate needle. A stitch withdrawing point is arranged on the cam plate, and the stitch withdrawing point is located at the outlet of the second needle groove. The lower end of the first needle groove is arranged in a horizontal straight line. This application has the effect of reducing the pulling down of the knitting needles that do not participate in knitting through the stitch withdrawing point during the knitting process, improving the defects generated during knitting, and improving the product quality.

[0004] However, the above patent can only control the position of the stitch withdrawing point by adjusting the second sliding part. The second sliding part can only be adjusted up and down by loosening the first adjusting hole, and the adjustment accuracy is difficult to control. At the same time, since there are various types of knitting needles in the large circular knitting machine, it is easy to have the problem of low stitch withdrawing accuracy. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a stitch withdrawing precision adjusting mechanism for a circular knitting machine, so as to solve the technical problems mentioned in the above background art.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A stitch withdrawing precision adjusting mechanism for a circular knitting machine includes a cam holder. Two sliding grooves are provided on the flat side of the cam holder, and sliding structures are arranged inside the sliding grooves.

[0008] The sliding structure includes a sliding block located inside the sliding groove. Thread grooves are formed on the side walls of the sliding block. Rotating grooves are formed at positions corresponding to the thread grooves on the inner wall of the sliding groove. An adjusting mechanism is arranged inside the rotating grooves. A first sliding groove is formed at the upper end inside the sliding block, and a second sliding groove is formed at the lower end inside the sliding block;

[0009] A first sliding block is arranged inside the first sliding groove. An upper adjusting screw rod is in threaded connection inside the first sliding block. The top end of the upper adjusting screw rod penetrates through the sliding block, and a first hexagonal hole is arranged at the top end. One end of the first sliding block extending out of the first sliding groove is provided with a needle track plate;

[0010] A second sliding block is slidably arranged inside the second sliding groove. A lower adjusting screw rod is in threaded connection inside the second sliding block. The top end of the lower adjusting screw rod penetrates through the sliding block, and a second hexagonal hole is arranged at the top end. One end of the second sliding block extending out of the second sliding groove is provided with a runway plate.

[0011] Further, the adjusting mechanism includes a main adjusting screw rod. The main adjusting screw rod is arranged inside the rotating groove, and rotating parts are arranged at both ends of the main adjusting screw rod. The main adjusting screw rod is in threaded cooperation with the thread groove.

[0012] Further, the rotating part includes a rotating ring and a rotating plate. The rotating plate is fixedly connected to the end of the groove wall of the rotating groove. The rotating ring is rotatably connected to the rotating plate. The rotating ring is rotatably connected to the end of the main adjusting screw rod and is coaxially arranged with the main adjusting screw rod. A hexagonal jack socket fixedly connected to the main adjusting screw rod is arranged inside the rotating ring.

[0013] Further, the needle track plate includes a needle track cross plate. The needle track cross plate is fixedly connected to one end of the first sliding block protruding out of the first sliding groove. Needle track guide plates for forming a needle track groove are arranged at both ends of the side of the needle track cross plate far away from the first sliding block.

[0014] Further, the runway plate includes a runway cross plate. The runway cross plate is fixedly connected to one end of the second sliding block protruding out of the second sliding groove. Runway guide plates for forming a runway groove are arranged on the side wall of the runway cross plate, and a needle receiving point is arranged on the bottom side of the upper runway guide plate.

[0015] Further, a measuring tool plate is arranged on the side wall of the triangular seat and is aligned with the side wall of the runway cross plate.

[0016] In summary, the utility model includes at least one of the following beneficial technical effects:

[0017] 1. The stitch withdrawing precision adjustment mechanism of a circular knitting machine can adjust the heights of the runway plate and the needle track plate by rotating the screw. Compared with the prior art, it can effectively improve the precision of the up-and-down sliding of the runway plate. Thus, when withdrawing stitches with the runway plate for knitting needles, the precision of stitch withdrawal can be effectively improved.

[0018] 2. The stitch withdrawing precision adjustment mechanism of a circular knitting machine can make the sliding block slide inside the sliding groove by controlling the rotation of the adjustment mechanism. At this time, the relative positions of the needle track plate and the runway plate remain unchanged, so as to adjust the heights of the needle track plate and the runway plate simultaneously, so as to align the needle track plate and the runway plate arranged on the side walls of adjacent triangular seats respectively to form continuous needle tracks and runways. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 It is a schematic structural diagram of the stitch withdrawing precision adjustment mechanism of a circular knitting machine of the present invention.

[0021] Figure 2 It is an exploded view of the structure of the stitch withdrawing precision adjustment mechanism of a circular knitting machine of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the sliding structure of the stitch withdrawing precision adjustment mechanism of a circular knitting machine of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the adjustment mechanism of the stitch withdrawing precision adjustment mechanism of a circular knitting machine of the present invention.

[0024] Figure 5 It is a schematic structural diagram of the needle track plate of the stitch withdrawing precision adjustment mechanism of a circular knitting machine of the present invention.

[0025] Figure 6 It is a schematic structural diagram of the runway plate of the stitch withdrawing precision adjustment mechanism of a circular knitting machine of the present invention.

[0026] In the figure, 1 is the triangular seat; 2 is the sliding structure; 21 is the sliding block; 22 is the thread groove; 23 is the rotating groove; 24 is the adjusting mechanism; 241 is the main adjusting screw; 242 is the rotating part; 243 is the rotating ring; 244 is the rotating plate; 245 is the hexagonal socket; 25 is the first sliding groove; 251 is the first sliding block; 252 is the upper adjusting screw; 253 is the first hexagonal hole; 254 is the needle track plate; 255 is the needle track cross plate; 256 is the needle track guide plate; 26 is the second sliding groove; 261 is the second sliding block; 262 is the lower adjusting screw; 263 is the second hexagonal hole; 264 is the runway plate; 265 is the runway cross plate; 266 is the runway guide plate; 267 is the knitting-up point; 3 is the sliding groove; 4 is the measuring tool plate. Detailed implementation mode

[0027] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0028] Embodiment:

[0029] Refer to Figure 1 - Figure 6 As shown in the figure, a knitting-up precision adjusting mechanism of a large circular knitting machine disclosed by the present utility model includes a triangular seat 1. Two groups of sliding grooves 3 are provided on the plane side of the triangular seat 1, and a sliding structure 2 is arranged inside each of the sliding grooves 3;

[0030] The sliding structure 2 includes a sliding block 21 located inside the sliding groove 3. A thread groove 22 is provided on the side wall of the sliding block 21. A rotating groove 23 is provided at a position corresponding to the thread groove 22 on the inner wall of the sliding groove 3. An adjusting mechanism 24 is arranged inside the rotating groove 23. A first sliding groove 25 is provided at the upper end inside the sliding block 21, and a second sliding groove 26 is provided at the lower end inside the sliding block 21;

[0031] A first sliding block 251 is arranged inside the first sliding groove 25. An upper adjusting screw 252 is threadedly connected inside the first sliding block 251. The top end of the upper adjusting screw 252 penetrates through the sliding block 21, and a first hexagonal hole 253 is provided at the top end. One end of the first sliding block 251 extending out of the first sliding groove 25 is provided with a needle track plate 254;

[0032] A second sliding block 261 is slidably arranged inside the second sliding groove 26. A lower adjusting screw 262 is threadedly connected inside the second sliding block 261. The top end of the lower adjusting screw 262 penetrates through the sliding block 21, and a second hexagonal hole 263 is provided at the top end. One end of the second sliding block 261 extending out of the second sliding groove 26 is provided with a runway plate 264.

[0033] In this embodiment, during use, by controlling the rotation of the adjusting mechanism 24, the sliding block 21 can slide inside the sliding groove 3. At this time, the relative positions of the needle track plate 254 and the runway plate 264 remain unchanged, so as to simultaneously adjust the heights of the needle track plate 254 and the runway plate 264, so as to align the needle track plate 254 and the runway plate 264 provided on the side wall of the adjacent triangular seat 1, respectively, to form continuous needle tracks and runways;

[0034] On the other hand, by rotating the upper adjusting screw 252, the first slider 251 can slide inside the first sliding groove 25, so as to separately adjust the position of the needle track plate 254. Similarly, by rotating the lower adjusting screw 262, the second slider 261 can be moved to separately adjust the runway plate 264, so as to improve the precision of the triangular seat 1;

[0035] The setting of adjusting the heights of the runway plate 264 and the needle track plate 254 by the rotation of the screw can effectively improve the precision of the up and down sliding of the runway plate 264 compared with the prior art. Therefore, when the knitting needles are retracted by the runway plate 264, the precision of the needle retraction can be effectively improved.

[0036] In a further preferred embodiment of the present utility model, as Figures 1-6 shown, the adjusting mechanism 24 includes a main adjusting screw 241. The main adjusting screw 241 is arranged inside the rotating groove 23, and rotating parts 242 are arranged at both ends of the main adjusting screw 241. The main adjusting screw 241 is in threaded cooperation with the threaded groove 22.

[0037] In this embodiment, by rotating the main adjusting screw 241 in cooperation with the threaded groove 22, the sliding block 21 slides inside the sliding groove 3, so as to simultaneously control the movement of the needle track plate 254 and the runway plate 264.

[0038] In a further preferred embodiment of the present utility model, as Figures 1-6 shown, the rotating part 242 includes a rotating ring 243 and a rotating plate 244. The rotating plate 244 is fixedly connected to the end of the groove wall of the rotating groove 23. The rotating ring 243 is rotatably connected to the rotating plate 244. The rotating ring 243 is rotatably connected to the end of the main adjusting screw 241 and is coaxially arranged with the main adjusting screw 241. A hexagonal jack 245 fixedly connected to the main adjusting screw 241 is arranged inside the rotating ring 243.

[0039] In this embodiment, the rotating plate 244 is provided to connect the rotating ring 243 with the wall of the rotating groove 23, so as to position the main adjusting screw 241. The main adjusting screw 241 is installed inside the rotating groove 23 through the arrangement of two rotating rings 243. The hexagonal jack 245 is provided to facilitate the torsion of the main adjusting screw 241.

[0040] In a further preferred embodiment of the present utility model, as Figures 1-6 shown, the needle channel plate 254 includes a needle channel horizontal plate 255. The needle channel horizontal plate 255 is fixedly connected to one end of the first slider 251 protruding from the first chute 25. Needle channel guide plates 256 for forming needle channels are provided at both ends of the side of the needle channel horizontal plate 255 away from the first slider 251.

[0041] In this embodiment, the needle channel horizontal plate 255 is provided to install the needle channel guide plates 256, and the needle channels are jointly formed by the gaps between the two needle channel guide plates 256.

[0042] In a further preferred embodiment of the present utility model, as Figures 1-6 shown, the runway plate 264 includes a runway horizontal plate 265. The runway horizontal plate 265 is fixedly connected to one end of the second slider 261 protruding from the second chute 26. Runway guide plates 266 for forming runways are provided on the side wall of the runway horizontal plate 265, and a needle receiving point 267 is provided on the bottom side of the upper runway guide plate 266.

[0043] In this embodiment, the runway horizontal plate 265 is provided to install the runway guide plates 266, and the runways are jointly formed by the two runway guide plates 266.

[0044] In a further preferred embodiment of the present utility model, as Figures 1-6 shown, a measuring tool plate 4 is provided on the side wall of the triangular seat 1, and the measuring tool plate 4 is aligned with the side wall of the runway horizontal plate 265.

[0045] In this embodiment, the measuring tool plate 4 is provided to adjust the positions of the runway horizontal plate 265 and the needle channel horizontal plate 255, so as to align adjacent needle channels with each other to guide the knitting needles.

[0046] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A needle reduction precision adjustment mechanism for a circular knitting machine, characterized in that: It comprises a triangular seat (1), wherein two groups of sliding grooves (3) are provided on the plane side of the triangular seat (1), and the sliding grooves (3) are provided with sliding structures (2) inside. The sliding structure (2) comprises a sliding block (21) located inside the sliding groove (3); a thread groove (22) is provided on the side wall of the sliding block (21); a rotation groove (23) is provided on the inner wall of the sliding groove (3) at a position corresponding to the thread groove (22); an adjusting mechanism (24) is provided inside the rotation groove (23); a first sliding groove (25) is provided on the inner upper end of the sliding block (21); and a second sliding groove (26) is provided on the inner lower end of the sliding block (21); A first sliding block (251) is disposed inside the first sliding groove (25), an upper adjusting screw (252) is connected to the interior of the first sliding block (251) by a thread, the top end of the upper adjusting screw (252) passes through the sliding block (21), and a first hexagonal hole (253) is disposed on the top end, and a needle path plate (254) is disposed on one end of the first sliding block (251) extending out of the first sliding groove (25); A second sliding block (261) is slidably arranged inside the second sliding groove (26), and a lower adjusting screw (262) is connected to the inner thread of the second sliding block (261). The top end of the lower adjusting screw (262) passes through the sliding block (21) and is provided with a second hexagonal hole (263). A runway plate (264) is arranged at one end of the second sliding block (261) extending out of the second sliding groove (26).

2. The needle narrowing precision adjustment mechanism of a circular knitting machine according to claim 1, characterized in that: The adjusting mechanism (24) comprises a main adjusting screw (241), the main adjusting screw (241) is arranged inside the rotating groove (23), and rotating parts (242) are arranged at both ends of the main adjusting screw (241), and the main adjusting screw (241) is threadedly matched with the thread groove (22).

3. The needle narrowing precision adjustment mechanism of a circular knitting machine according to claim 2, characterized in that: The rotating member (242) comprises a rotating ring (243) and a rotating plate (244); the rotating plate (244) is fixedly connected to the end of the groove wall of the rotating groove (23); the rotating ring (243) is rotationally connected to the rotating plate (244); the rotating ring (243) is rotationally connected to the end of the main adjusting screw (241); the rotating ring (243) and the main adjusting screw (241) are coaxially arranged; and a hexagonal socket (245) fixedly connected to the main adjusting screw (241) is arranged inside the rotating ring (243).

4. The needle narrowing precision adjustment mechanism of a circular knitting machine according to claim 3, characterized in that: The needle track plate (254) includes a needle track transverse plate (255), which is fixedly connected to one end of the first sliding block (251) protruding from the first sliding groove (25), and needle track guide plates (256) for forming needle track grooves are arranged at both ends of the needle track transverse plate (255) on one side away from the first sliding block (251).

5. The needle narrowing precision adjustment mechanism of a circular knitting machine according to claim 4, characterized in that: The runway plate (264) includes a runway transverse plate (265), and the runway transverse plate (265) is fixedly connected to one end of the second sliding block (261) protruding from the second sliding groove (26), and a runway guide plate (266) for forming a runway groove is arranged on the side wall of the runway transverse plate (265), and a needle closing point (267) is arranged on the bottom side of the runway guide plate (266) located at the top.

6. The needle narrowing precision adjustment mechanism of a circular knitting machine according to claim 5, characterized in that: The side wall of the triangular seat (1) is provided with a measuring plate (4), and the measuring plate (4) is aligned with the side wall of the runway cross plate (265).

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