Circular knitting machine structure

Abstract

A circular knitting machine structure includes a plurality of needles and a plurality of sinkers. Each of the needles is controlled to move in one of a first half needle track and a second half needle track. The first half needle track has a take-down point later than the take-down point of the second half needle track. Each of the sinkers forms an inclined surface on a side facing each of the needles. Each of the needles knits a face yarn and a ground yarn. When one of the needles moves in the first half needle track, the face yarn does not change position and a normal loop is formed. When one of the needles moves in the second half needle track, the face yarn temporarily rests on the inclined surface of one of the sinkers and changes position relative to the ground yarn, thereby forming a yarn changing loop.

Description

TECHNICAL FIELD

[0001] The present invention relates to a circular knitting machine structure, in particular to a circular knitting machine structure for knitting an interchanged plating by changing the position of a face yarn. BACKGROUND

[0002] US 11,136,698 discloses a variable yarn position weft knitting machine structure, wherein each of the plurality of needles is controlled to travel a first needle withdrawal trajectory and a second needle withdrawal trajectory. When each of the plurality of needles is active in the first needle withdrawal trajectory, each of the plurality of needles does not change the position of a face yarn and a ground yarn in a standard plating in a needle hook. When each of the plurality of needles is active in the second needle withdrawal trajectory, each of the plurality of needles activates a sinker to displace the ground yarn with a latch, and the ground yarn is pushed by a nose of the sinker to change the position of the face yarn and the ground yarn in the needle hook, thereby knitting an interchanged plating.

[0003] On the other hand, US 9,834,871 discloses a flat knitting machine for knitting an interchanged plating in a technical front single face. The method is to make the sinker push the ground yarn (i.e. the first colored yarn described in the case) and the face yarn (i.e. the second colored yarn described in the case) simultaneously downward with a nose protrusion front edge during the period when the needle is in a second needle withdrawal section, thereby forming the standard plating (i.e. the standard plating described in the case). When the needle is active in an interchanged needle withdrawal stroke, the sinker is in the period when the needle is in the interchanged needle withdrawal stroke, and the nose protrusion rear edge and the groove are connected, and the ground yarn is lifted above the face yarn and then released for knitting, thereby forming the interchanged plating.

[0004] Although the aforementioned US 11,136,698 and US 9,834,871 can achieve the purpose of interchanging the yarn, both of them achieve the purpose by changing the position of the ground yarn. However, in the current implementation of the circular knitting machine, the space in the needle hook of each of the plurality of needles is limited. When the ground yarn and the face yarn are fed into the needle hook, the ground yarn will be closer to the position of the latch, and the aforementioned position is the part of the needle hook with a relatively narrow space, which causes the problem of disorderly interchanging the position of the ground yarn. In addition, the sinker disclosed in US 9,834,871 is a two-dimensional motion to displace the ground yarn, and the sinker of the circular knitting machine cannot perform two-dimensional motion. SUMMARY

[0005] The main purpose of the present invention is to solve the problem of disorderly interchanging the yarn caused by the current implementation of changing the position of the ground yarn.

[0006] To achieve the above object, the present application provides a circular knitting machine structure, which comprises a plurality of needles and a plurality of sinkers. The needles each have a needle hook, and each of the needles is controlled to move in one of a first half-needle track and a second half-needle track, the first half-needle track having a needle withdrawal time point later than that of the second half-needle track. The sinkers are arranged corresponding to each of the needles, the sinkers are identical in shape, and each of the sinkers forms an inclined surface on a side facing each of the needles. When each of the needles knits, a face yarn and a ground yarn are fed, the face yarn being higher than the ground yarn in position within the needle hook. When one of the needles moves in the first half-needle track, the face yarn does not change position and is knitted into a normal loop. When one of the needles moves in the second half-needle track, the face yarn temporarily abuts against the inclined surface of one of the sinkers and changes position relative to the ground yarn, thereby being knitted into a yarn-changing loop.

[0007] In an embodiment, each of the sinkers comprises a sinker track, which comprises a push-out section traveled when each of the needles withdraws, and a retraction section connected to the push-out section.

[0008] In an embodiment, each of the sinkers has a web, a nose connected to the web, and a throat between the web and the nose, the nose away from the web forms the inclined surface and a flat surface connected to the inclined surface.

[0009] In an embodiment, the circular knitting machine structure comprises at least one needle cam providing a plurality of movement paths for the needles, and at least one selector controlled to drive each of the needles to move in one of the first half-needle track and the second half-needle track.

[0010] In an embodiment, the circular knitting machine structure comprises at least one sinker cam guiding the movement of the sinkers.

[0011] In an embodiment, each of the needles is controlled to move in the first half-needle track, the second half-needle track, and a flat-needle track. Further, the circular knitting machine structure has at least one needle cam providing a plurality of movement paths for the needles, and at least one selector controlled to drive each of the needles to move in one of the first half-needle track, the second half-needle track, and the flat-needle track.

[0012] The present application has the following features compared with the conventional implementation: in addition to allowing each needle to move in one of the first half-needle track and the second half-needle track, the present application also changes the position of the face yarn relative to the ground yarn to avoid the problems of yarn jamming and yarn changing disorder during the yarn changing process. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a circular knitting machine according to an embodiment of the present application.

[0014] Figure 2 A schematic diagram of the structure of a needle and a needle hill according to an embodiment of the present application.

[0015] Figure 3 A schematic diagram of the structure of a circular knitting machine according to an embodiment of the present application.

[0016] Figure 4 A schematic diagram of the track of a needle and a Schappe according to an embodiment of the present application.

[0017] Figure 5 A schematic diagram of an embodiment of a needle and a Schappe according to an embodiment of the present application.

[0018] Figure 6 A schematic diagram of the needle-in action of a needle according to an embodiment of the present application when the needle moves in the first half-needle track.

[0019] Figure 7 A schematic diagram of the position of a face yarn and a ground yarn in a needle hook when a normal loop is plated according to an embodiment of the present application.

[0020] Figure 8 A schematic diagram of the needle-in action of a needle according to an embodiment of the present application when the needle moves in the second half-needle track.

[0021] Figure 9 A schematic diagram of the position of a face yarn and a ground yarn in a needle hook when a loop is plated during a yarn changing process according to an embodiment of the present application.

[0022] Figure 10 A schematic diagram of a fabric with a color-changing block according to an embodiment of the present application.

[0023] Figure 11 A schematic diagram of the track of a needle and a Schappe according to another embodiment of the present application.

[0024] Figure 12 A schematic diagram of a fabric with a mesh and a color-changing block according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The detailed description and technical content of the present application are described below in conjunction with the accompanying drawings:

[0026] Referring to Figures 1 to 5 The present invention provides a circular knitting machine structure 10, which comprises a plurality of knitting needles 11 and a plurality of sinkers 12. Each of the knitting needles 11 has a needle hook 111 and a needle tongue 112 capable of performing an opening and closing action relative to the needle hook 111. When the knitting needle 11 is in the process of knitting, the needle tongue 112 performs the opening action relative to the needle hook 111 so that the yarn can be fed into the needle hook 111. When the knitting needle 11 is in the process of knitting, the needle tongue 112 performs the closing action relative to the needle hook 111 due to the effect of the previous loop. Each of the knitting needles 11 of the present invention is controlled to move in one of a first half needle track 20 and a second half needle track 21, wherein the first half needle track 20 has a later knitting needle retraction time point than the second half needle track 21. Further, the circular knitting machine structure 10 comprises at least one needle cam 13 defining the movable path of each of the knitting needles 11, and a selector 14 determining the movement track of the knitting needles 11. The needle cam 13 can be composed of a plurality of cam blocks 131, which are not limited to a fixed form and can be designed according to the path requirements. In addition, the selector 14 is connected to a controller (not shown in the figure) of the circular knitting machine, and the selector 14 selects the movement track of the knitting needles 11 based on the signals sent by the controller according to the knitting process, i.e. whether the knitting needles 11 move in the first half needle track 20 or the second half needle track 21 is determined by the selector 14 according to the signals sent by the controller.

[0027] On the other hand, referring to Figures 4 to 7The sinkers 12 are arranged respectively corresponding to each of the needles 11, and are uniform in shape. Each of the sinkers 12 forms an inclined surface 121 on the side facing each of the needles 11. In addition, the circular knitting machine structure 10 comprises at least one sinker hill 15 guiding the movement of the sinkers 12. The sinkers 12 are guided by the sinker hill 15 to have a sinker track 22 respectively, which comprises a push-out section 221 and a retraction section 222 successively connected to the push-out section 221 when each of the needles 11 is withdrawn. It should be understood that the push-out time point and the retraction time point of each of the sinkers 12 of the present application will not change due to the movement of the needles 11, that is, the movement of one of the sinkers 12 cooperating with one of the needles 11 will not change regardless of whether the needle 11 is moved in the first half needle track 20 or the second half needle track 21. Furthermore, each of the sinkers 12 only performs one-dimensional movement, that is, each of the sinkers 12 only pushes out or retracts relative to one of the needles 11. The push-out movement described in the present application refers to the displacement of each of the sinkers 12 towards the feeding point of the face yarn 30 and the ground yarn 31. Similarly, the retraction movement described in the present application refers to the displacement of each of the sinkers 12 away from the feeding point of the face yarn 30 and the ground yarn 31. Furthermore, the position of each of the sinkers 12 in each section of the sinker track 22 is continuously changing and will not be fixed at a single position.

[0028] Please refer to Figures 5 to 9 When each of the needles 11 is knitting, a face yarn 30 and a ground yarn 31 are fed. The position of the face yarn 30 in the needle hook 111 is higher than that of the ground yarn 31. When one of the needles 11 is controlled by the selector 14 to move in the first half needle track 20, the position of the face yarn 30 relative to the ground yarn 31 does not change during the process of withdrawing the loop, as shown in Figure 6 and Figure 7 , and a standard plating is formed, which refers to a plating in which the face yarn 30 is above the ground yarn 31 when viewed from the technical front of the fabric. In addition, when one of the needles 11 is controlled by the selector 14 to move in the second half needle track 21, the face yarn 30 is temporarily supported on the inclined surface 121 of one of the sinkers 12 during the process of pulling the face yarn 30. The inclined surface 121 causes the face yarn 30 to slip and change its position relative to the ground yarn 31, as shown in Figure 8 and Figure 9as shown, thereby forming an interchanged plating, which means that the face yarn 30 is located below the ground yarn 31 when viewed from the technical front of the fabric. In addition, the fabric formed by the present application is as shown. Figure 10 Furthermore, the present application changes the position of the face yarn 30 relative to the ground yarn 31, because when the face yarn 30 is fed into the needle hook 111, the position is not only significantly higher than that of the ground yarn 31, but also further away from the connection between the needle latch 112 and the needle hook 111, and is located in the wider part of the needle hook 111, so that the face yarn 30 does not have problems such as yarn jamming or difficulty in changing position during the changing process.

[0029] Please refer again to Figure 4 and Figure 5 In an embodiment, each of the sinkers 12 has an abdomen 122, a nose 123 connected to the abdomen 122, and a throat 124 between the abdomen 122 and the nose 123, and the side of the nose 123 away from the abdomen 122 is formed with the inclined surface 121 and a flat surface 125 connected to the inclined surface 121. More specifically, when one of the needles 11 moves in the second half needle track 21, one of the sinkers 12 of the present application will intervene in the movement of the face yarn 30 at the point in time when the sinker track 22 changes from the push section 221 to the return section 222, so that the face yarn 30 changes position.

[0030] Please refer to Figure 2 Because the corners 131 included in the needle corner 13 of the present application are different from the commonly used corner blocks, each of the corner blocks 131 has a space 132 that allows multiple paths to be generated, and the shapes of the multiple spaces 132 possessed by each of the corner blocks 131 are not limited to being the same.

[0031] Please refer to Figure 11 In an embodiment, each of the needles 11 can be controlled to move in the first half needle track 20, the second half needle track 21, and a flat needle track 23. Among them, the first half needle track 20 and the second half needle track 21 respectively cause each of the needles 11 to hook the face yarn 30 and the ground yarn 31 to generate a plating, and the flat needle track 23 causes each of the needles 11 to only hook the ground yarn 31 to generate a plating. Thus, when each of the needles 11 is implemented in the flat needle track 23, a mesh will be generated on the fabric, allowing the fabric to have a pattern other than color change, and the fabric is as shown. Figure 12 Figure 12 ​The regions 40, 41 in the figure are the portions formed by the normal loop or the change loop, respectively, and the portion indicated by reference numeral 42 is the eyelet according to the present application. The present application can thus produce an eyelet at a predetermined stitch point during the process of changing the color of the knitted fabric, thereby adding variation to the fabric.

[0032] Furthermore, the present embodiment increases the active portion of the flat needle track 23, but the needle cam 13 used to guide the needles 11 does not need to be changed due to the design of the space 132 described above. Instead, the control of the selector 14 can be used to move each of the needles 11 in one of the first half needle track 20, the second half needle track 21, and the flat needle track 23.

[0033]

List of Symbols

[0034] 10: Circular knitting machine structure

[0035] 11: Needle

[0036] 111: Needle hook

[0037] 112: Needle tongue

[0038] 12: Shank

[0039] 121: Inclined surface

[0040] 122: Abdominal portion

[0041] 123: Nose portion

[0042] 124: Throat portion

[0043] 125: Flat surface

[0044] 13: Needle cam

[0045] 131: Cam block

[0046] 132: Space

[0047] 14: Selector

[0048] 15: Shank cam

[0049] 20: First half needle track

[0050] 21: Second half needle track

[0051] 22: Shank track

[0052] 221: Pushing section

[0053] 222: Retracting section

[0054] 23: Flat needle track

[0055] 30: Yarn

[0056] 31: ground yarn

[0057] 40, 41: areas

[0058] 42: mesh

Claims

1. A circular knitting machine structure, characterized by, Comprising: a plurality of needles each having a needle hook, each of the plurality of needles being controlled to move in one of a first half-needle track and a second half-needle track, the first half-needle track having a take-down point later than the take-down point of the second half-needle track; and a plurality of sinkers each corresponding to each of the plurality of needles, the plurality of sinkers being uniform in shape, each of the plurality of sinkers having a sinker track, each of the plurality of sinkers forming an inclined surface on a side facing each of the plurality of needles; wherein each of the plurality of needles is fed with a face yarn and a ground yarn when knitting, the face yarn being positioned higher than the ground yarn within the needle hook, when one of the plurality of needles moves in the first half-needle track, the face yarn does not change position and is knitted into a normal loop, when one of the plurality of needles moves in the second half-needle track, the face yarn temporarily rests on the inclined surface of one of the plurality of sinkers and changes position relative to the ground yarn, thereby being knitted into a yarn-changing loop.

2. The structure of the circular knitting machine according to claim 1, characterized in that, The sinker track comprises a push-out section traveled by each of the plurality of needles when taking down, and a retraction section connected to the push-out section.

3. A structure for a circular knitting machine according to claim 1 or 2, characterized in that, Each of the plurality of sinkers has a belly, a nose connected to the belly, and a throat between the belly and the nose, the side of the nose away from the belly forms the inclined surface and a flat surface connected to the inclined surface.

4. The structure of the circular knitting machine according to claim 3, characterized in that, The circular knitting machine structure has at least one needle cam providing a plurality of movement paths for the plurality of needles, and at least one selector controlled to drive each of the plurality of needles to move in one of the first half-needle track and the second half-needle track.

5. The structure of the circular knitting machine according to claim 4, characterized in that, The circular knitting machine structure has at least one sinker cam guiding the movement of the plurality of sinkers.

6. The structure of the circular knitting machine according to claim 3, characterized in that, Each of the plurality of needles is controlled to move in the first half-needle track, the second half-needle track, and a flat-needle track.

7. The structure of a circular knitting machine according to claim 6, characterized in that, The circular knitting machine structure has at least one needle cam allowing the plurality of needles to move in one of the first half-needle track, the second half-needle track, and the flat-needle track, and at least one selector controlled to drive each of the plurality of needles to move in one of the first half-needle track and the second half-needle track.

8. The structure of the circular knitting machine according to claim 7, characterized in that, The circular knitting machine structure comprises at least one sinker cam guiding the movement of the plurality of sinkers.

9. The structure of a circular knitting machine according to claim 1 or 2, characterized in that, Each of the plurality of needles is controlled to move in the first half-needle track, the second half-needle track, and a flat-needle track.

10. The structure of the circular knitting machine according to claim 9, characterized in that, The circular knitting machine structure has at least one needle cam providing a plurality of movement paths for the plurality of needles, and at least one selector controlled to drive each of the plurality of needles to move in one of the first half-needle track, the second half-needle track, and the flat-needle track.

11. The structure of the circular knitting machine according to claim 10, characterized in that, The circular knitting machine structure comprises at least one sinker hill angle that guides the movement of the plurality of sinkers. The circular knitting machine structure comprises at least one sinker hill angle that guides the movement of the plurality of sinkers.

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