Weft knitting machine suitable for double rib stitches

Abstract

The utility model relates to the technical field of knitting equipment, in particular to a weft knitting machine suitable for interlock stitches, which comprises triangular blocks, two track grooves are arranged on the triangular blocks, the two track grooves are respectively first track grooves and second track grooves, the two first track grooves of the two adjacent triangular blocks are connected end to end, and the two second track grooves of the two adjacent triangular blocks are connected end to end; the first track groove comprises a first needle outlet and narrowing track section and a first needle plain track section which are connected end to end; and the second track groove comprises a second plain stitch track section and a second needle outlet and narrowing track section which are connected end to end. The number of the triangular blocks adopted by the whole equipment is only one fourth of that of the traditional equipment, the production cost of the equipment is reduced, and the equipment is high in operation stability and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of knitting equipment, in particular to a weft knitting machine suitable for double rib structure. Background Art

[0002] Double rib weave is composed of two rib weaves, also known as cotton wool weave. Under the same yarn fineness and fabric structure parameters, double rib fabric is denser and thicker than plain and rib fabrics, and is one of the fabrics for making winter cotton wool shirts and trousers. In addition, double rib fabric has the characteristics of relatively stable size, so it can also be used to produce casual clothes, sportswear and jackets. Therefore, double rib weave is widely used.

[0003] In the existing double rib weft knitting machines, both the upper and lower needles are divided into high heels and low heels, so the upper and lower triangles are divided into high and low gears accordingly, that is, usually in a set of circulation units, the upper needle track needs to be composed of 4 upper triangle blocks, and the lower needle track needs to be composed of 4 lower triangle blocks. The existing equipment has a large number of triangle blocks, and the equipment cost is high; the transition point between the tracks of adjacent triangle blocks inevitably has a relatively large impact force on the needle butt. If the linear speed of the needle cylinder is accelerated, the impact force will be greater. Therefore, the existing structure also restricts the maximum linear speed of the needle cylinder, which restricts the improvement of production efficiency. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides a weft knitting machine suitable for double rib structure.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a weft knitting machine suitable for double rib structure, comprising:

[0006] Several triangular blocks are arranged in an array, and two track grooves are opened on one triangular block, namely a first track groove and a second track groove. The two first track grooves of two adjacent triangular blocks are connected end to end, and the two second track grooves are connected end to end; the first track groove includes a first needle-entry track segment and a first flat needle track segment connected end to end; the second track groove includes a second flat needle track segment and a second needle-entry track segment connected end to end.

[0007] Further, the triangular block includes an upper triangular block and a lower triangular block;

[0008] A plurality of upper triangular blocks are arranged in an array, and two track grooves are provided on one upper triangular block, namely, a first upper needle track groove and a second upper needle track groove, and the two first upper needle track grooves of two adjacent upper triangular blocks are connected end to end, and the two second upper needle track grooves are connected end to end; the first upper needle track groove includes a first upper needle exit and close-up track segment and a first upper needle flat needle track segment connected end to end; the second upper needle track groove includes a second upper needle flat needle track segment and a second upper needle exit and close-up track segment connected end to end;

[0009] A plurality of lower triangular blocks are arranged in an array, and two track grooves are opened on a lower triangular block, namely a first lower needle track groove and a second lower needle track groove. The two first lower needle track grooves of two adjacent lower triangular blocks are connected end to end, and the two second lower needle track grooves are connected end to end; the first lower needle track groove includes a first lower needle exit and close-up track segment and a first lower needle flat needle track segment connected end to end; the second lower needle track groove includes a second lower needle flat needle track segment and a second lower needle exit and close-up track segment connected end to end.

[0010] Furthermore, the upper triangular block has a convex front and concave rear structure on one of the left and right sides, and the other side has a concave front and convex rear structure that matches the opposite side; the lower triangular block has a convex upper and concave lower structure on one of the left and right sides, and the other side has a concave upper and convex lower structure that matches the opposite side.

[0011] Furthermore, the first upper needle trajectory groove and the second upper needle trajectory groove are arranged in front and back, and have the following layout on two adjacent upper triangular blocks: the first upper needle needle entry and narrowing trajectory segment and the second upper needle flat needle trajectory segment are partially staggered and overlapped in the trajectory direction; the first upper needle flat needle trajectory segment and the second upper needle needle entry and narrowing trajectory segment are partially staggered and overlapped in the trajectory direction.

[0012] Furthermore, the first lower needle trajectory groove and the second lower needle trajectory groove are arranged in an upper and lower arrangement, and have the following layout under two adjacent lower triangle blocks: the first lower needle needle entry and narrowing trajectory segment and the second lower needle flat needle trajectory segment are partially staggered and overlapped in the trajectory direction; the first lower needle flat needle trajectory segment and the second lower needle needle entry and narrowing trajectory segment are partially staggered and overlapped in the trajectory direction.

[0013] It can be seen from the above description of the utility model that, compared with the prior art, the weft knitting machine suitable for double rib structure provided by the utility model has the following advantages:

[0014] 1. In the double rib weft knitting machine of the present application, a set of circulation units uses only one triangle block. Compared with the traditional design of four triangle blocks, the number of triangle blocks used in the whole equipment is only one-fourth of that in the traditional equipment, thereby reducing the production cost of the equipment.

[0015] 2. In the triangular block design of the present application, the needle entry and retraction trajectory section and the flat needle trajectory section are formed in the same trajectory groove. Compared with the traditional design distributed in two triangular trajectories, the number of needle butt impact points during the movement of the knitting needle is reduced, the equipment operates smoothly, reduces operating noise and vibration, and improves the life of the knitting needle. At the same time, it also provides a basis for designing higher linear speed operation of the equipment, and can increase production by increasing the linear speed.

[0016] 3. The trajectory grooves between adjacent upper triangular blocks of the present application have a design in which the trajectories are partially staggered and overlapped, so the overall average trajectory path of a circulation unit on the corresponding whole machine is shortened, that is, more groups of circulation units can be installed on a circular machine with the same diameter specification, and a higher output can be achieved at the same line speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the upper triangular block structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the lower triangular block structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the combined arrangement state of the upper triangular blocks of the utility model.

[0020] Figure 4 This is a schematic diagram of the combined arrangement state of the lower triangular blocks of the utility model.

[0021] The symbols in the figure correspond as follows: 1. Upper triangle block, 11. First upper needle trajectory groove, 111. First upper needle exit and narrowing trajectory segment, 112. First upper needle flat needle trajectory segment, 12. Second upper needle trajectory groove, 121. Second upper needle flat needle trajectory segment, 122. Second upper needle exit and narrowing trajectory segment, 2. Lower triangle block, 21. First lower needle trajectory groove, 211. First lower needle exit and narrowing trajectory segment, 212. First lower needle flat needle trajectory segment, 22. Second lower needle trajectory groove, 221. Second lower needle flat needle trajectory segment, 222. Second lower needle exit and narrowing trajectory segment. DETAILED DESCRIPTION

[0022] The present invention is further described below through specific implementation methods.

[0023] Reference Figures 1 to 4 As shown, a weft knitting machine suitable for double rib structure comprises:

[0024] A plurality of upper triangular blocks 1 are arranged in an array, and two track grooves are provided on one upper triangular block 1, namely, a first upper needle track groove 11 and a second upper needle track groove 12. The two first upper needle track grooves 11 of two adjacent upper triangular blocks 1 are connected end to end, and the two second upper needle track grooves 12 are connected end to end; the first upper needle track groove 11 includes a first upper needle exit and close-up track segment 111 and a first upper needle flat needle track segment 112 connected end to end; the second upper needle track groove 12 includes a second upper needle flat needle track segment 121 and a second upper needle exit and close-up track segment 122 connected end to end. One side of the upper triangular block 1 on the left and right sides is a convex front and concave rear structure, and the other side is a concave front and convex rear structure adapted to the opposite side. The first upper needle trajectory groove 11 and the second upper needle trajectory groove 12 are arranged in front and back, and have the following layout on two adjacent upper triangular blocks 1: the first upper needle needle-entry and needle-retracting trajectory segment 111 and the second upper needle flat needle trajectory segment 121 are partially staggered and overlapped in the trajectory direction; the first upper needle flat needle trajectory segment 112 and the second upper needle needle-entry and needle-retracting trajectory segment 122 are partially staggered and overlapped in the trajectory direction.

[0025] A plurality of lower triangular blocks 2 are arranged in an array, and two track grooves are provided on the lower triangular block 2, namely, a first lower needle track groove 21 and a second lower needle track groove 22. The two first lower needle track grooves 21 of two adjacent lower triangular blocks 2 are connected end to end, and the two second lower needle track grooves 22 are connected end to end; the first lower needle track groove 21 includes a first lower needle exit and close needle track segment 211 and a first lower needle flat needle track segment 212 connected end to end; the second lower needle track groove 22 includes a second lower needle flat needle track segment 221 and a second lower needle exit and close needle track segment 222 connected end to end. One side of the left and right sides of the lower triangular block 2 is a convex-up and concave-down structure, and the other side is a concave-up and convex-down structure adapted to the opposite side. The first lower needle trajectory groove 21 and the second lower needle trajectory groove 22 are arranged in an upper and lower arrangement, and have the following layout under two adjacent lower triangle blocks 2: the first lower needle needle entry and narrowing trajectory segment 211 and the second lower needle flat needle trajectory segment 221 are partially staggered and overlapped in the trajectory direction; the first lower needle flat needle trajectory segment 212 and the second lower needle needle entry and narrowing trajectory segment 222 are partially staggered and overlapped in the trajectory direction.

[0026] The double rib weft knitting machine of the present application uses only one upper triangle block 1 and one lower triangle block 2 in one circulation unit, and all the track grooves required to complete the double rib structure are provided on the upper triangle block 1 and the lower triangle block 2. Compared with the structure in which four triangle blocks are combined to form the upper needle track and four triangle blocks are combined to form the lower needle track in a traditional circulation unit, the number of triangle block parts is greatly reduced. That is, the number of triangle blocks used in the whole equipment is only one-fourth of that in traditional equipment, which reduces the production cost of triangle blocks and the equipment cost; correspondingly, the number of triangle seats used to install triangle blocks is also only one-fourth of that in traditional equipment, which further reduces the production cost of equipment.

[0027] In the triangular block design of the present application, the needle entry and collection trajectory segment and the flat needle trajectory segment are formed in the same trajectory groove. Compared with the traditional design in which the needle entry and collection trajectory segment and the flat needle trajectory segment are distributed in two triangular trajectories, the number of needle butt impact points during the movement of the knitting needle is reduced, thereby improving the stability of the equipment operation and reducing the operating noise and vibration; this design reduces the needle butt impact and can increase the life of the knitting needle. At the same time, it also provides a basis for designing a higher linear speed operation for the equipment, and can increase production by increasing the linear speed.

[0028] The first upper needle trajectory groove 11 of the present application and the second upper needle trajectory groove 12 of the adjacent upper triangular block 1 have partially interlaced and overlapped trajectories; the first lower needle trajectory groove 21 and the second lower needle trajectory groove 22 of the adjacent lower triangular block 2 have partially interlaced and overlapped trajectories, so the corresponding overall average trajectory path of a circulation unit on the whole machine is shortened, that is, more groups of circulation units can be installed on a circular machine with the same diameter specification, and a higher output can be achieved at the same line speed.

[0029] The above is only a specific implementation of the present utility model, but the design concept of the present utility model is not limited to this. Any non-substantial changes to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A weft knitting machine suitable for double rib structure, characterized in that: include: Several triangular blocks are arranged in an array, and two track grooves are opened on one triangular block, namely a first track groove and a second track groove. The two first track grooves of two adjacent triangular blocks are connected end to end, and the two second track grooves are connected end to end; the first track groove includes a first needle-entry track segment and a first flat needle track segment connected end to end; the second track groove includes a second flat needle track segment and a second needle-entry track segment connected end to end.

2. A weft knitting machine suitable for double rib structure according to claim 1, characterized in that: The triangular block includes an upper triangular block and a lower triangular block; A plurality of upper triangular blocks are arranged in an array, and two track grooves are provided on one upper triangular block, namely, a first upper needle track groove and a second upper needle track groove, and the two first upper needle track grooves of two adjacent upper triangular blocks are connected end to end, and the two second upper needle track grooves are connected end to end; the first upper needle track groove includes a first upper needle exit and close-up track segment and a first upper needle flat needle track segment connected end to end; the second upper needle track groove includes a second upper needle flat needle track segment and a second upper needle exit and close-up track segment connected end to end; A plurality of lower triangular blocks are arranged in an array, and two track grooves are opened on a lower triangular block, namely a first lower needle track groove and a second lower needle track groove. The two first lower needle track grooves of two adjacent lower triangular blocks are connected end to end, and the two second lower needle track grooves are connected end to end; the first lower needle track groove includes a first lower needle exit and close-up track segment and a first lower needle flat needle track segment connected end to end; the second lower needle track groove includes a second lower needle flat needle track segment and a second lower needle exit and close-up track segment connected end to end.

3. A weft knitting machine suitable for double rib structure according to claim 2, characterized in that: The upper triangular block has a convex front and concave rear structure on one of the left and right sides, and a concave front and convex rear structure on the other side to match the opposite side; the lower triangular block has a convex upper and concave lower structure on one of the left and right sides, and a concave upper and convex lower structure on the other side to match the opposite side.

4. A weft knitting machine suitable for double rib structure according to claim 2 or 3, characterized in that: The first upper needle trajectory groove and the second upper needle trajectory groove are arranged in front and back, and have the following layout on two adjacent upper triangular blocks: the first upper needle needle entry and narrowing trajectory segment and the second upper needle flat needle trajectory segment are partially staggered and overlapped in the trajectory direction; the first upper needle flat needle trajectory segment and the second upper needle needle entry and narrowing trajectory segment are partially staggered and overlapped in the trajectory direction.

5. A weft knitting machine suitable for double rib structure according to claim 2 or 3, characterized in that: The first lower needle trajectory groove and the second lower needle trajectory groove are arranged in an upper and lower arrangement, and have the following layout under two adjacent lower triangular blocks: the first lower needle needle entry and narrowing trajectory segment and the second lower needle flat needle trajectory segment are partially staggered and overlapped in the trajectory direction; the first lower needle flat needle trajectory segment and the second lower needle needle entry and narrowing trajectory segment are partially staggered and overlapped in the trajectory direction.

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