Triangle mechanism of circular knitting machine

Abstract

The utility model relates to a triangular mechanism of a circular knitting machine, in particular to a first triangular mechanism, a second triangular mechanism and a third triangular mechanism. A first peak a, a first platform a, a first valley a and a tail end a continuously and upwards extend from a needle running groove rail a of the first triangular mechanism along a starting end a; a needle running groove rail b of the second triangular mechanism continuously extends downwards along a starting end b to form a first valley b, and a first peak b, a second peak b and a tail end b which extend upwards from the first valley b; a needle running groove rail c of the third triangular mechanism continuously and horizontally extends along a starting end c to form a first platform c, the second platform c extends upwards from the first platform c, and the second platform c extends downwards to a tail end c. The thickness of the fabric with good supporting performance and water permeability produced in batches through cooperation of the first triangular mechanism, the second triangular mechanism and the third triangular mechanism can reach 5-8 mm.

Description

Technical Field

[0001] The utility model belongs to the technical field of knitting, and in particular relates to a cam mechanism of a circular knitting machine. Background Art

[0002] With the advancement of science and technology, textile machinery is also constantly developing and innovating. Circular knitting machines are one of the most important machines in textile machinery. They have the characteristics of high speed, high output, fast pattern change, good fabric quality and fewer processes. The product has strong adaptability and is deeply loved by manufacturers. It uses the orderly arrangement and combination of triangle mechanisms to form different needle paths to move the knitting needles up and down to complete the weaving of different patterns. Among them, the triangle mechanism is one of the most important components. Whether the knitting needles can slide smoothly along the needle path directly determines the quality and performance of the products produced.

[0003] At present, there are great technical difficulties in the mass production of fabrics with good support and permeability of 5mm or above in thickness. Due to the limitations of knitting technology, such fabrics have not yet been mass-produced on the market, and the market demand is huge. Utility Model Content

[0004] To address the aforementioned problems in the prior art, the present invention provides a cam mechanism for a large circular knitting machine, comprising a first cam mechanism, a second cam mechanism, and a third cam mechanism, for mass production of supportive and water-permeable fabrics with a thickness of 5mm to 8mm. The first, second, and third cam mechanisms can be used to mass-produce supportive and water-permeable fabrics with a thickness of 5mm to 8mm.

[0005] On the one hand, the utility model provides a cam mechanism of a circular knitting machine, wherein the cam mechanism is a first cam mechanism;

[0006] A needle track a is formed on the first surface of the first cam mechanism. The needle track a includes a starting end a, and a first peak a, a first platform a, a first valley a, and an end a that continuously extend upward from the starting end a. The height of the first platform a is less than the height of the first peak a and greater than the height of the first valley a. The height of the end a is greater than the height of the first valley a and less than the height of the first valley a.

[0007] The maximum width of the opening at the starting end a is ha1, ha1 = 10.5 ~ 12.0 mm, and the width of the opening at the end a is consistent with the width of the groove track; the vertical distance between the side of the opening at the starting end a close to the first peak a and the top of the first peak a is ha2, ha2 = 9.5 ~ 10.2 mm; the vertical distance between the top of the first peak a and the first platform a is ha3, ha3 = 11.2 ~ 11.9 mm.

[0008] Furthermore, in the first cam mechanism of the present invention, the curve of the needle groove track a is as follows: from the starting end a, it continuously rises at a slope of 55.7° to 56.5° to the first peak a, then continuously descends at a slope of 30° to 33° to reach the first platform a, then continuously descends at a slope of 40° to 44° to the first valley a, and then rises by a height of 1.0 to 1.5 mm to reach the end a;

[0009] The length of the first platform a is wa1, wa1 = 3.4-3.6 mm; the end a has an upper protrusion and a lower protrusion extending out of the first triangular mechanism.

[0010] On the other hand, the utility model provides a cam mechanism for a circular knitting machine, wherein the cam mechanism is a second cam mechanism;

[0011] The first surface of the second cam mechanism is provided with a needle track b, the needle track b including a starting end b, a first valley b extending continuously downward from the starting end b, and a first peak b, a second peak b and an end b extending upward from the first valley b;

[0012] The first peak b rises gently and extends to the second peak b. The horizontal distance between the peaks of the first peak b and the second peak b is wb1, wb1 = 4.88-4.94 mm. The vertical distance between the peaks of the first peak b and the second peak b is hb3, hb3 = 3.9-3.93 mm.

[0013] The starting end b has an upper protrusion and a lower protrusion away from the end b and extending out of the second triangular mechanism. The maximum width of the opening of the end b is hb1, and hb1 = 10.0-10.8 mm.

[0014] Furthermore, in the second cam mechanism of the present invention, the curve of the needle groove b is as follows: from the starting end b, it continuously descends by 1.5 to 2 mm at a slope of 18 to 23° to the first valley b, then continuously rises at a slope of 45 to 50° to the first peak b, then continuously rises at a slope of 35 to 42° to the second peak b, and then continuously descends at a slope of 35 to 42° to the end b;

[0015] The opening width of the starting end b is consistent with the groove width, and the vertical distance between the side of the opening of the end b close to the second peak b and the peak of the second peak b is hb2, where hb2 = 12.5-14 mm;

[0016] The vertical distance between the bottom of the first valley b and the top of the second peak b is hb4, where hb4 = 12.4-12.7 mm.

[0017] On the other hand, the utility model provides a cam mechanism of a circular knitting machine, wherein the cam mechanism is a third cam mechanism;

[0018] The first surface of the third cam mechanism is provided with a needle track c, the needle track c including a starting end c, a first platform c continuously extending horizontally along the starting end c, a second platform c extending upward from the first platform c, and the second platform c extending downward to the end c;

[0019] The width of the opening of the starting end c is consistent with the width of the groove rail, and the starting end c has an upper protrusion and a lower protrusion away from the end c and extending out of the third triangular mechanism;

[0020] The maximum width of the opening of the end c is hc1, hc1 = 8.5 ~ 10.5 mm; the vertical distance between the side of the opening of the end c close to the second platform c and the second platform c is hc2, hc2 = 8.4 ~ 8.7 mm.

[0021] Furthermore, in the third cam mechanism of the present invention, the curve of the needle track c is: extending from the starting end c to the first platform c, then continuously rising to the second platform c at a slope of 48° to 55°, and then continuously descending to the end c at a slope of 48° to 55°;

[0022] The vertical distance between the first platform c and the second platform c is hc4, where hc4 = 9.0-10.2 mm.

[0023] Furthermore, in the third triangular mechanism described in the present invention, the length of the first platform c is wc1, wc1 = 3.8-4.5 mm, and the length of the second platform c is wc2, wc2 = 11.0-11.5 mm.

[0024] Furthermore, in the triangular mechanism of the circular knitting machine described in the present invention, the surfaces corresponding to the first surface a, the first surface b and the first surface c are the second surface a, the second surface b and the second surface c respectively, and the left and right sides of the second surface a, the second surface b and the second surface c and the positions corresponding to the starting end a, the starting end b, the starting end c, the end a, the end b and the end c are provided with arc-shaped blind grooves parallel to the needle groove rail and with the openings away from the needle groove rail.

[0025] Furthermore, in the cam mechanism of the circular knitting machine described in the present invention, fixed through holes passing through the cam mechanism are provided under the needle groove rails of the first cam mechanism, the second cam mechanism and the third cam mechanism, and fixed blind holes are also provided on the second surface a, the second surface b and the second surface c.

[0026] Furthermore, in the cam mechanism of the circular knitting machine described in the present invention, the first cam mechanism is a needle movement cam mechanism for the upper needle, and the second cam mechanism and the third cam mechanism are both needle movement cam mechanisms for the lower needle.

[0027] The cam mechanism of the circular knitting machine described in the utility model is used for mass production of knitted fabrics. The thickness of the fabric with good support and water permeability produced in batches by the cooperation of the first cam mechanism, the second cam mechanism and the third cam mechanism can reach 5mm to 8mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional structural diagram of the first cam mechanism 100 in the first embodiment of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the first cam mechanism 100 in the first embodiment of the present invention;

[0030] Figure 3 This is a front view of the first cam mechanism 100 in the first embodiment of the present invention;

[0031] Figure 4 This is a three-dimensional structural diagram of the first cam mechanism 100 in the first embodiment of the present invention;

[0032] Figure 5 This is a rear view of the first cam mechanism 100 in the first embodiment of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the second cam mechanism 200 in the second embodiment of the present invention;

[0034] Figure 7 This is a front view of the second cam mechanism 200 in the second embodiment of the present invention;

[0035] Figure 8 This is a rear view of the second cam mechanism 200 in the second embodiment of the present invention;

[0036] Figure 9 This is a three-dimensional structural diagram of the third triangular mechanism 300 in the third embodiment of the present invention;

[0037] Figure 10 This is a front view of the third triangular mechanism 300 in the third embodiment of the present invention;

[0038] Figure 11 This is a rear view of the third triangular mechanism 300 in the third embodiment of the present invention;

[0039] in:

[0040] 100, first cam mechanism, 101, first surface a, 102, 220, second surface a, needle groove a, 103, starting end a, 105, first peak a, 106, first platform a, 107, first valley a, 104, ending end a, 108, arc-shaped blind groove, 110, fixing through hole, 109, fixing blind hole, 1041, upper protrusion of the first cam mechanism, 1042, lower protrusion of the first cam mechanism;

[0041] 200, second cam mechanism, 201, first surface b, 220, second surface b, 202, needle groove b, 203, starting end b, 207, first valley b, 205, first peak b, 206, second peak b, 204, ending end b, 2031, upper protrusion of the second cam mechanism, 2032, lower protrusion of the second cam mechanism;

[0042] 300. The third triangular mechanism, 301. The first surface c, 220. The second surface c, 302. The needle groove c, 303. The starting end c, 305. The first platform c, 306. The second platform c, 304. The end c, 3031. The upper protrusion of the second triangular mechanism, 3032. The lower protrusion of the second triangular mechanism. DETAILED DESCRIPTION

[0043] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. The embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. If specific conditions are not specified in the specific embodiments, they shall be carried out under conventional conditions or the conditions recommended by the manufacturer.

[0044] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The exemplary embodiments described below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with certain aspects of the present disclosure as detailed in the appended claims. The terminology used in this disclosure is for the purpose of describing specific embodiments only and is not intended to be limiting of the disclosure. Specific implementation method one:

[0046] like Figures 1 to 5 As shown, a cam mechanism of a circular knitting machine of the present invention is a first cam mechanism 100;

[0047] A needle track a102 is defined on the first surface a101 of the first cam mechanism 100. The needle track a102 includes a starting end a103, a first peak a105, a first platform a106, a first valley a107, and an end a104 extending continuously upward from the starting end a103. The first platform a106 is less than the height of the first peak a105 and greater than the height of the first valley a107. The end a104 is greater than the height of the first valley a106 and less than the height of the first valley a106.

[0048] The maximum width of the opening at the starting end a 102 is ha1, ha1 = 10.5 ~ 12.0 mm, and the opening width of the end a 104 is consistent with the groove width; the vertical distance between the side of the opening of the starting end a 102 close to the first peak a 105 and the peak of the first peak a 105 is ha2, ha2 = 9.5 ~ 10.2 mm; the vertical distance between the peak of the first peak a 105 and the first platform a 106 is ha3, ha3 = 11.2 ~ 11.9 mm.

[0049] In some embodiments, the curve of the needle track a 102 is as follows: from the starting end a 103, it continuously rises at a slope of 55.7° to 56.5° to a first peak a 105, then continuously descends at a slope of 30° to 33° to reach a first platform a 106, then continuously descends at a slope of 40° to 44° to reach a first valley a 107, and then rises by a height of 1.0 to 1.5 mm to reach an end a 104;

[0050] The length of the first platform a 106 is wa1, wa1 = 3.4-3.6 mm; the end a has an upper protrusion 1041 and a lower protrusion 1042 extending out of the first triangular mechanism.

[0051] In some embodiments, the surface corresponding to the first surface a101 is the second surface a120, and the left and right sides of the second surface a120 corresponding to the starting end a103 and the end end a104 are both provided with arc-shaped blind grooves 108 parallel to the needle groove a102 and opening away from it.

[0052] In some embodiments, a fixing through hole 110 penetrating the cam mechanism is provided below the needle groove a 102 of the first cam mechanism 100 , and a fixing blind hole 109 is further provided on the second surface a 120 .

[0053] In some embodiments, the first cam mechanism is a needle-moving cam mechanism. Specific implementation method 2:

[0055] like Figures 6 to 8As shown, a cam mechanism of a circular knitting machine of the present invention is a second cam mechanism 200;

[0056] The first surface 201 of the second cam mechanism 200 is provided with a needle groove b 202, which includes a starting end b 203, a first valley b 207 extending continuously downward along the starting end b 203, and a first peak b 205, a second peak b 206 and an end b 204 extending upward from the first valley b 207; the first peak b 205 rises gently and extends to the second peak b 206.

[0057] In some embodiments, the horizontal distance between the peaks of the first peak b 205 and the second peak b 206 is wb1, wb1 = 4.88-4.94 mm; the vertical distance between the peaks of the first peak b 205 and the second peak b 206 is hb3, hb3 = 3.9-3.93 mm;

[0058] In some embodiments, the starting end b 203 has an upper protrusion 2031 and a lower protrusion 2032 away from the end b 204 and extending out of the second triangular mechanism, and the maximum width of the opening of the end b 204 is hb1, where hb1 = 10.0-10.8 mm.

[0059] In some embodiments, the curve of the needle groove b 200 is: continuously descending from the starting end b 203 at a slope of 18° to 23° to a height of 1.5 to 2 mm to the first valley b 207, then continuously rising at a slope of 45° to 50° to the first peak b 205, then continuously rising at a slope of 35° to 42° to the second peak b206, and then continuously descending at a slope of 35° to 42° to the end b 204.

[0060] In some embodiments, the opening width of the starting end b 203 is consistent with the groove width, and the vertical distance between the side of the opening of the end b 203 close to the second peak b 206 and the peak of the second peak b 206 is hb2, where hb2 = 12.5-14 mm.

[0061] In some embodiments, a vertical distance between the bottom of the first valley b 207 and the top of the second peak b 205 is hb4, where hb4 = 12.4-12.7 mm.

[0062] In some embodiments, the surface corresponding to the first surface b201 is the second surface b220, and the left and right sides of the second surface b220 corresponding to the starting end b203 and the end end b204 are both provided with arc-shaped blind grooves 108 parallel to the needle rail b202 and opening away from it.

[0063] In some embodiments, a fixing through hole 110 penetrating the cam mechanism is provided below the needle guide rail b 202 of the first cam mechanism 200 , and a fixing blind hole 109 is further provided on the second surface b 220 .

[0064] In some embodiments, the first cam mechanism is a needle-moving cam mechanism. Specific implementation method three:

[0066] like Figures 9 to 11 As shown, a cam mechanism of a circular knitting machine of the present invention is a third cam mechanism 300;

[0067] The first surface c of the third cam mechanism 300 is provided with a needle groove c 302, and the needle groove c 302 includes a starting end c 303, a first platform c 305 extending continuously horizontally along the starting end c 303, and a second platform c 306 extending upward from the first platform c 305, and the second platform c 306 extends downward to the end c 304.

[0068] In some embodiments, the width of the opening of the starting end c 303 is consistent with the width of the needle groove c 302, and the starting end c 303 has an upper protrusion 3031 and a lower protrusion 3032 away from the end c 304 and extending out of the third triangle mechanism.

[0069] In some embodiments, the maximum width of the opening of the end c 304 is hc1, where hc1 = 8.5-10.5 mm; and the vertical distance between the side of the opening of the end c 304 close to the second platform c 306 and the second platform c 306 is hc2, where hc2 = 8.4-8.7 mm.

[0070] In some embodiments, the curve of the needle groove c 300 is: extending from the starting end c 303 to the first platform c 305, then continuously rising to the second platform c 306 at a slope of 48° to 55°, and then continuously descending to the end c 304 at a slope of 48° to 55°; the vertical distance between the first platform c 305 and the second platform c 306 is hc4, hc4 = 9.0 ~ 10.2 mm.

[0071] In some embodiments, the length of the first platform c 305 is wc1, wc1 = 3.8-4.5 mm, and the length of the second platform c 306 is wc2, wc2 = 11.0-11.5 mm.

[0072] In some embodiments, the surface corresponding to the first surface c 301 is the second surface c 320, and the left and right sides of the second surface c 320 corresponding to the starting end c 303 and the end end c 304 are provided with arc-shaped blind grooves 108 parallel to the needle rail c 302 and with openings away from it.

[0073] In some embodiments, a fixing through hole 110 penetrating the cam mechanism is provided below the needle groove c 302 of the first cam mechanism 300 , and a fixing blind hole 109 is further provided on the second surface c 320 .

[0074] In some embodiments, the first cam mechanism is a needle-moving cam mechanism.

[0075] The present invention will be further described in detail below with reference to specific embodiments.

[0076] Example 1:

[0077] The utility model relates to a cam mechanism of a circular knitting machine, wherein the cam mechanism is a first cam mechanism 100;

[0078] A needle track a102 is defined on the first surface 101 of the first cam mechanism 100. The needle track a102 includes a starting end a103, a first peak a105, a first platform a106, a first valley a107, and a terminal a104 extending continuously upward from the starting end a103. The height of the first platform a106 is less than the height of the first peak a105 and greater than the height of the first valley a107. The height of the terminal a104 is greater than the height of the first valley a106 and less than the height of the first valley a106.

[0079] The maximum width of the opening at the starting end a102 is ha1, ha1 = 10.5 ~ 12.0 mm, and the width of the opening at the end a104 is consistent with the width of the groove track; the vertical distance between the side of the opening at the starting end a102 close to the first peak a105 and the peak of the first peak a105 is ha2, ha2 = 9.5 ~ 10.2 mm; the vertical distance between the peak of the first peak a105 and the first platform a106 is ha3, ha3 = 11.2 ~ 11.9 mm.

[0080] The curve of the needle track a102 is as follows: from the starting point a103, it continuously rises at a slope of 56.25° to the first peak a105, then continuously descends at a slope of 33° to the first platform a106, then continuously descends at a slope of 40° to the first valley a107, and then rises 1.0-1.5 mm to the end a104;

[0081] The length of the first platform a 106 is wa1, wa1 = 3.4-3.6 mm; the end a has an upper protrusion and a lower protrusion extending from the first triangular mechanism.

[0082] The surface corresponding to the first surface a101 is the second surface a120. The left and right sides of the second surface a120 corresponding to the starting end a103 and the ending end a104 are both provided with arc-shaped blind grooves 108 parallel to the needle rail a102 and with their openings away from each other.

[0083] A fixing through hole 110 penetrating the cam mechanism is provided below the needle rail a 102 of the first cam mechanism 100 , and a fixing blind hole 109 is further provided on the second surface a 120 .

[0084] The first cam mechanism is the needle moving cam mechanism for the upper needle.

[0085] Example 2:

[0086] like Figures 6 to 8 As shown, the utility model is a cam mechanism of a circular knitting machine, and the cam mechanism is a second cam mechanism 200;

[0087] The first surface 201 of the second cam mechanism 200 is provided with a needle groove b 202, which includes a starting end b203, a first valley b 207 extending continuously downward from the starting end b 203, and a first peak b 205, a second peak b 206 and an end b 204 extending upward from the first valley b207; the first peak b 205 rises gently and extends to the second peak b 206.

[0088] The horizontal distance between the peaks of the first peak b 205 and the second peak b 206 is wb1, wb1 = 4.9 mm; the vertical distance between the peaks of the first peak b 205 and the second peak b 206 is hb3, hb3 = 3.9 mm;

[0089] The starting end b 203 has an upper protrusion 2031 and a lower protrusion 2032 that are away from the end b 204 and extend out of the second triangular mechanism. The maximum width of the opening of the end b 204 is hb1, and hb1 = 10.4 mm.

[0090] The curve of the needle groove b 200 is: from the starting end b 203, it continuously descends 1.5 mm in height at a slope of 19° to the first valley b 207, then continuously rises at a slope of 50° to the first peak b 205, then continuously rises at a slope of 35° to the second peak b206, and then continuously descends at a slope of 35° to the end b 204.

[0091] The opening width of the starting end b 203 is consistent with the groove width, and the vertical distance between the side of the opening of the end b 203 close to the second peak b 206 and the peak of the second peak b 206 is hb2, where hb2 = 12.5 mm.

[0092] The vertical distance between the bottom of the first valley b 207 and the top of the second peak b 205 is hb4, where hb4 = 12.5 mm.

[0093] The surface corresponding to the first surface b201 is the second surface b220. The left and right sides of the second surface b220 corresponding to the starting end b203 and the end end b204 are both provided with arc-shaped blind grooves 108 parallel to the needle rail b202 and with their openings away from each other.

[0094] A fixing through hole 110 penetrating the cam mechanism is provided below the needle guide rail b 202 of the first cam mechanism 200 , and a fixing blind hole 109 is further provided on the second surface b 220 .

[0095] The first cam mechanism is the needle moving cam mechanism for lowering the needle.

[0096] Example 3:

[0097] like Figures 9 to 11 As shown, the utility model is a cam mechanism of a circular knitting machine, and the cam mechanism is a third cam mechanism 300;

[0098] A needle track c 302 is provided on the first surface of the third cam mechanism 300. The needle track c 302 includes a starting end c 303, a first platform c 305 extending horizontally continuously along the starting end c 303, and a second platform c 306 extending upward from the first platform c 305. The second platform c 306 extends downward to the end c 304.

[0099] The width of the opening of the starting end c 303 is consistent with the width of the needle groove c 302. The starting end c 303 has an upper protrusion 3031 and a lower protrusion 3032 that are away from the end c304 and extend out of the third triangle mechanism.

[0100] The maximum width of the opening of the end c 304 is hc1, hc1 = 9.5 mm; the vertical distance between the side of the opening of the end c 304 close to the second platform c 306 and the second platform c 306 is hc2, hc2 = 8.6 mm.

[0101] The curve of the needle track c 300 is as follows: extending from the starting end c 303 to the first platform c 305, then continuously rising at a slope of 50° to the second platform c 306, and then continuously descending at a slope of 50° to the end c 304; the vertical distance between the first platform c 305 and the second platform c306 is hc4, hc4 = 9.5 mm.

[0102] The length of the first platform c 305 is wc1, wc1 = 4.05 mm, and the length of the second platform c 306 is wc2, wc2 = 11.1 mm.

[0103] The surface corresponding to the first surface c 301 is the second surface c 320. The left and right sides of the second surface c 320 corresponding to the starting end c 303 and the end end c 304 are both provided with arc-shaped blind grooves 108 parallel to the needle rail c 302 and with their openings away from each other.

[0104] A fixing through hole 110 penetrating the cam mechanism is provided below the needle rail c 302 of the first cam mechanism 300 , and a fixing blind hole 109 is further provided on the second surface c 320 .

[0105] The first cam mechanism is the needle moving cam mechanism for lowering the needle.

[0106] The present invention is described through the above-mentioned specific embodiments and examples. It should be understood by those skilled in the art that various changes and equivalent substitutions may be made to the present invention without departing from the scope of the present invention. Parts not described in detail in the present invention specification are well-known technologies to those skilled in the art. In addition, various modifications may be made to the present invention for specific circumstances or specific situations without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed, but should include all embodiments that fall within the scope of the claims of the present invention.

Claims

1. A cam mechanism for a circular knitting machine, characterized in that: The triangular mechanism is a first triangular mechanism; The first surface a of the first cam mechanism is provided with a needle track a, the needle track a including a starting end a, and a first peak a, a first platform a, a first valley a, and an end a extending continuously upward from the starting end a; the height of the first platform a is less than the height of the first peak a and greater than the height of the first valley a, and the height of the end a is greater than the height of the first valley a and less than the height of the first valley a; The maximum width of the opening at the starting end a is ha1, ha1 = 10.5 ~ 12.0 mm, and the width of the opening at the end a is consistent with the width of the groove track; the vertical distance between the side of the opening at the starting end a close to the first peak a and the top of the first peak a is ha2, ha2 = 9.5 ~ 10.2 mm; the vertical distance between the top of the first peak a and the first platform a is ha3, ha3 = 11.2 ~ 11.9 mm.

2. The cam mechanism of the circular knitting machine according to claim 1, characterized in that: The curve of the needle track a is as follows: from the starting end a, it continuously rises at a slope of 55.7° to 56.5° to the first peak a, then continuously descends at a slope of 30° to 33° to reach the first platform a, then continuously descends at a slope of 40° to 44° to reach the first valley a, and then rises by a height of 1.0 to 1.5 mm to reach the end a; The length of the first platform a is wa1, wa1 = 3.4-3.6 mm; the end a has an upper protrusion and a lower protrusion extending out of the first triangular mechanism.

3. A cam mechanism for a circular knitting machine, characterized in that: The triangular mechanism is a second triangular mechanism; The first surface b of the second cam mechanism is provided with a needle track b, the needle track b comprising a starting end b, a first valley b extending continuously downward from the starting end b, and a first peak b, a second peak b and an end b extending upward from the first valley b; The first peak b rises gently and extends to the second peak b. The horizontal distance between the peaks of the first peak b and the second peak b is wb1, wb1 = 4.88-4.94 mm. The vertical distance between the peaks of the first peak b and the second peak b is hb3, hb3 = 3.9-3.93 mm. The starting end b has an upper protrusion and a lower protrusion away from the end b and extending out of the second triangular mechanism. The maximum width of the opening of the end b is hb1, and hb1 = 10.0-10.8 mm.

4. The cam mechanism of the circular knitting machine according to claim 3, characterized in that: The curve of the needle groove b is as follows: from the starting end b, it continuously descends at a slope of 18 to 23 degrees, reaches the first valley b by a height of 1.5 to 2 mm, then continuously rises at a slope of 45 to 50 degrees to the first peak b, then continuously rises at a slope of 35 to 42 degrees to the second peak b, and then continuously descends at a slope of 35 to 42 degrees to the end b; The opening width of the starting end b is consistent with the groove width, and the vertical distance between the side of the opening of the end b close to the second peak b and the peak of the second peak b is hb2, where hb2 = 12.5-14 mm; The vertical distance between the bottom of the first valley b and the top of the second peak b is hb4, where hb4 = 12.4-12.7 mm.

5. A cam mechanism for a circular knitting machine, characterized in that: The triangular mechanism is a third triangular mechanism; The first surface c of the third cam mechanism is provided with a needle track c, the needle track c including a starting end c, a first platform c continuously extending horizontally along the starting end c, a second platform c extending upward from the first platform c, and the second platform c extending downward to the end c; The width of the opening of the starting end c is consistent with the width of the groove rail, and the starting end c has an upper protrusion and a lower protrusion away from the end c and extending out of the third triangular mechanism; The maximum width of the opening of the end c is hc1, hc1 = 8.5 ~ 10.5 mm; the vertical distance between the side of the opening of the end c close to the second platform c and the second platform c is hc2, hc2 = 8.4 ~ 8.7 mm.

6. The cam mechanism of the circular knitting machine according to claim 5, characterized in that: The curve of the needle rail c is: extending from the starting end c to the first platform c, then continuously rising to the second platform c at a slope of 48° to 55°, and then continuously descending to the end c at a slope of 48° to 55°; The vertical distance between the first platform c and the second platform c is hc4, where hc4 = 9.0-10.2 mm.

7. The cam mechanism of the circular knitting machine according to claim 6, characterized in that: The length of the first platform c is wc1, wc1 = 3.8-4.5 mm, and the length of the second platform c is wc2, wc2 = 11.0-11.5 mm.

8. The cam mechanism of a circular knitting machine according to any one of claims 1 to 7, characterized in that: The surfaces corresponding to the first surface a, the first surface b and the first surface c are the second surface a, the second surface b and the second surface c respectively, and the left and right sides of the second surface a, the second surface b and the second surface c and the positions corresponding to the starting end a, the starting end b, the starting end c, the end a, the end b and the end c are provided with arc-shaped blind grooves parallel to the needle groove track and with openings away from the needle groove track.

9. The cam mechanism of the circular knitting machine according to claim 8, characterized in that: The needle grooves of the first cam mechanism, the second cam mechanism and the third cam mechanism are all provided with fixing through holes that pass through the cam mechanism, and the second surface a, the second surface b and the second surface c are also provided with fixing blind holes.

10. The cam mechanism of the circular knitting machine according to claim 9, characterized in that: The first cam mechanism is a cam mechanism for moving the upper needle, and the second cam mechanism and the third cam mechanism are both cam mechanisms for moving the lower needle.

Images