Circular knitting machine and method for manufacturing high-needle high-density knitted fabric

Abstract

The present invention discloses a circular knitting machine and a method for manufacturing high-needle and high-density knitted fabrics, comprising at least one needle cylinder, a plurality of needle grooves arranged at intervals along the circumference of the needle cylinder, the outlet end of the needle groove extends to a reference surface of the needle cylinder, a knitting needle is placed in the needle groove, the knitting needle extends from the outlet end of the needle groove, the needle cylinder can drive the knitting needle to rotate along the circumference of the needle cylinder, and the knitting needle can move forward or backward relative to the reference surface in the extension direction of the needle groove; wherein the width of the needle groove is set according to the thickness of the knitting needle, and the thickness of the groove wall between two adjacent needle grooves is set according to the number of needle grooves, the diameter of the needle cylinder and the width of the needle groove. The circular knitting machine of the present invention reduces the width of the needle groove according to the thickness of the knitting needle when manufacturing high-needle and high-density knitted fabrics, and increases the thickness of the groove wall, thereby improving the stability of the needle cylinder, avoiding the problem of the groove wall being too thin due to too many needles installed on the needle cylinder, causing the groove wall to be easily deformed, and easy to swing and interfere with the knitting needle, causing the needle to hit.

Description

Technical Field

[0001] The invention relates to the field of textile machinery, in particular to a circular knitting machine and a method for manufacturing high-needle and high-density knitted fabrics. Background Art

[0002] The high-needle and high-density functional knitted fabric is tight and delicate. The fabric is knitted by interweaving regenerated cellulose fiber and synthetic fiber, pure cotton and pure cotton, or pure cotton and fiber to form a knitted structure. The knitting is difficult, which provides broad prospects for product development. Traditional circular knitting machines can only knit conventional knitted fabrics with a needle pitch of 11G-28G and a needle number of 1100-2988. However, the knitting of high-needle and high-density knitted fabrics requires at least 3,000 needles. The needle number is large, the needle groove is narrow, and the groove wall between two adjacent needle grooves is very thin, which makes the groove wall easy to deform. In addition, the knitting needles used are also very thin, and the knitting needles are easy to swing and hit the needles. Summary of the invention

[0003] The purpose of the present invention is to provide a circular knitting machine and a method for manufacturing high-needle and high-density knitted fabrics, so as to solve the technical problem that the current circular knitting machine cannot knit high-needle and high-density knitted fabrics.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The present invention provides a circular knitting machine, comprising at least one needle cylinder, wherein a plurality of needle grooves are arranged at intervals along the circumference of the needle cylinder, the outlet ends of the needle grooves extend to a reference surface of the needle cylinder, knitting needles are accommodated in the needle grooves, and the knitting needles extend from the outlet ends of the needle grooves, the needle cylinder can drive the knitting needles to rotate along the circumference of the needle cylinder, and the knitting needles can move forward or backward relative to the reference surface in the extension direction of the needle grooves; wherein the width of the needle grooves is set according to the thickness of the knitting needles, and the thickness of the groove wall between two adjacent needle grooves is set according to the number of the needle grooves, the diameter of the needle cylinder and the width of the needle grooves.

[0006] In an embodiment of the present invention, the width of the needle groove is 0.1 mm-0.3 mm greater than the thickness of the knitting needle.

[0007] In an embodiment of the present invention, the thickness of the groove wall is T, the number of the needle grooves is N, the circumference of the syringe is L, and the width of the needle groove is W, then there is a relationship: T=L / NW.

[0008] In an embodiment of the present invention, the circular knitting machine further includes at least one angular structure, the angular structure is provided with at least one needle channel, the needle channel is arranged opposite to the needle groove, the stitches of the knitting needles move along the needle channel so that the knitting needles move forward or backward relative to the reference plane in the extension direction of the needle groove, and the distance between the needle channel and the reference plane in the extension direction of the needle groove is set according to the thickness of the knitting needles.

[0009] In an embodiment of the present invention, the needle channel includes a flat needle channel, the stitch moves along the flat needle channel to cause the knitting needle to translate along the circumference of the needle cylinder, the thickness of the knitting needle is 0.15mm-0.3mm, and the length of the knitting needle extending from the needle groove relative to the reference plane in the translation state is 12mm-14mm.

[0010] In an embodiment of the present invention, the needle moving channel also includes a needle pressing channel, a needle raising channel and a needle exit channel which are connected in sequence, the stitch enters the needle pressing channel, the needle raising channel and the needle exit channel in sequence from one flat needle channel and enters another flat needle channel from the needle exit channel, the stitch moves along the needle pressing channel to cause the knitting needle to retreat in the extension direction of the needle groove, the stitch moves along the needle raising channel to cause the knitting needle to advance in the extension direction of the needle groove, and the stitch moves along the needle exit channel to cause the knitting needle to retreat and reset in the extension direction of the needle groove.

[0011] In an embodiment of the present invention, the angular structure includes at least one angular block group, the angular block group includes a first angular block, a second angular block and a third angular block arranged in sequence along the circumference of the needle cylinder, the first angular block is provided with a first channel, the second angular block is provided with a second channel, the third angular block is provided with a third channel, the first channel, the second channel and the third channel are connected in sequence to form the needle moving channel.

[0012] In an embodiment of the present invention, the first channel includes a first straight section and a first outlet section, the first straight section is connected with the first outlet section to form the flat needle channel, the first outlet section gradually expands along its extension direction and its width is greater than the width of the inlet end of the second channel.

[0013] In an embodiment of the present invention, the second channel includes a first descending section, a first ascending section and a second outlet section that are connected to each other, the third channel includes a second ascending section, the first descending section is connected to the first outlet section, the first descending section constitutes the needle pressing channel, the first ascending section and the second ascending section are connected through the second outlet section to constitute the needle lifting channel, the inner wall surface of the second outlet section close to the reference plane extends along the ascending direction of the first ascending section, and the inner wall surface of the second outlet section away from the reference plane extends straight.

[0014] In an embodiment of the present invention, the third channel also includes a second descending section, a second straight section, a third descending section and a third outlet section which are connected in sequence, the second descending section is connected with the second ascending section, the second descending section, the second straight section, the third descending section and the third outlet section are connected to form the needle outlet channel, the inner wall surface of the third outlet section close to the reference plane extends straight, the inner wall surface of the third outlet section away from the reference plane extends obliquely toward the side away from the reference plane, and the width of the third outlet section is greater than the width of the inlet end of the first straight section.

[0015] In an embodiment of the present invention, two needle running channels are arranged on the angular structure along the extension direction of the needle groove, and the flat needle channels on the two needle running channels are arranged alternately in the circumferential direction of the needle cylinder.

[0016] In an embodiment of the present invention, the circular knitting machine includes two needle cylinders and two angular structures, the two needle cylinders are respectively an upper needle cylinder and a lower needle cylinder, the upper needle cylinder is located above the lower needle cylinder; the needle groove of the upper needle cylinder is a radial needle groove, the radial needle groove is arranged on the top surface of the upper needle cylinder along the radial direction of the upper needle cylinder, and the outlet end of the radial needle groove extends to the outer circumferential surface of the upper needle cylinder; the needle groove of the lower needle cylinder is an axial needle groove, the axial needle groove is arranged on the outer circumferential surface of the lower needle cylinder along the axial direction of the lower needle cylinder, and the outlet end of the axial needle groove extends to the top surface of the lower needle cylinder; the two angular structures are respectively an upper angular structure and a lower angular structure, the upper angular structure is located above the upper needle cylinder, and the lower angular structure is located on the outside of the lower needle cylinder.

[0017] In an embodiment of the present invention, the circular knitting machine also includes at least one yarn feeding mouth, which is located on the outside of the upper angular structure and above the lower angular structure. The yarn feeding mouth is used to deliver yarn to the working end of the knitting needle, and the material of the yarn feeding mouth is ceramic material.

[0018] The present invention also provides a method for manufacturing high-needle and high-density knitted fabrics, which uses a circular knitting machine and includes the following steps: according to the thickness of the knitting needle, reducing the width of the needle groove and increasing the thickness of the groove wall between two adjacent needle grooves; according to the thickness of the knitting needle, reducing the length of the knitting needle extending from the needle groove relative to the reference plane; moving the stitches of the knitting needle along the needle channel so that the working end of the knitting needle can weave.

[0019] In an embodiment of the present invention, reducing the extended length of the knitting needle comprises the following steps: the needle groove is an axial needle groove, which is arranged on the outer circumferential surface of the lower needle cylinder along the axial direction of the lower needle cylinder, and the outlet end of the axial needle groove extends to the top surface of the lower needle cylinder, the top surface of the lower needle cylinder is the reference surface of the lower needle cylinder, and the height of the top surface of the lower needle cylinder is increased according to the thickness of the knitting needle; and / or the needle groove is a radial needle groove, which is arranged on the top surface of the upper needle cylinder along the radial direction of the upper needle cylinder, and the outlet end of the radial needle groove extends to the outer circumferential surface of the upper needle cylinder, the outer circumferential surface of the upper needle cylinder is the reference surface of the upper needle cylinder, and the radial dimension of the outer circumferential surface of the upper needle cylinder is expanded according to the thickness of the knitting needle.

[0020] In an embodiment of the present invention, reducing the extended length of the knitting needle comprises the following steps: translating the needle passage in the opposite direction of the extension direction of the needle groove to increase the distance between the needle passage and the reference plane in the extension direction of the needle groove.

[0021] The characteristics and advantages of the present invention are:

[0022] The circular knitting machine of the present invention sets the width of the needle groove according to the thickness of the knitting needle, and sets the thickness of the groove wall between two adjacent needle grooves according to the number of needle grooves, the diameter of the needle cylinder and the width of the needle groove. Therefore, when manufacturing high-needle and high-density knitted fabrics, the thickness of the groove wall between two adjacent needle grooves is increased by reducing the width of the needle groove according to the thickness of the knitting needle, thereby improving the stability of the needle cylinder and avoiding the problem of the groove wall between two adjacent needle grooves being too thin due to too many needles installed on the needle cylinder, resulting in the groove wall being easily deformed and easily swinging to interfere with the knitting needles, causing the needle to hit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a three-dimensional diagram of the circular knitting machine of the present invention.

[0025] Figure 2 It is a schematic structural diagram of a knitting needle of the present invention.

[0026] Figure 3 It is a partial top view of the circular knitting machine of the present invention.

[0027] Figure 4 It is a partial side view of the circular knitting machine of the present invention.

[0028] Figure 5 It is a partial side sectional view of the syringe of the present invention.

[0029] Figure 6 It is a three-dimensional diagram of the upper corner structure of the present invention.

[0030] Figure 7 It is a structural schematic diagram of the needle-moving channel of the upper angular structure of the present invention.

[0031] Figure 8 It is a three-dimensional diagram of the lower corner structure of the present invention.

[0032] Fig. 9 It is a structural schematic diagram of the needle moving channel of the lower angular structure of the present invention.

[0033] In the figure:

[0034] 1. Needle cylinder; 11. Upper needle cylinder; 111. Top surface of upper needle cylinder; 112. Outer peripheral surface of upper needle cylinder; 12. Lower needle cylinder; 121. Top surface of lower needle cylinder; 122. Outer peripheral surface of lower needle cylinder; 13. Needle groove; 131. Radial needle groove; 132. Axial needle groove; 14. Groove wall; 15. Reference plane; 2. Knitting needle; 3. Angular structure; 31. Upper angular structure; 32. Lower angular structure; 33. Angular seat; 34. Angular block group; 4. Needle moving channel; 41. Flat needle channel; 42. Press needle channel; 43. Needle starting channel; 44, needle exit channel; 5, first corner block; 51, first channel; 511, first straight section; 512, first outlet section; 6, second corner block; 61, second channel; 611, first descending section; 612, first ascending section; 613, second outlet section; 7, third corner block; 71, third channel; 711, second ascending section; 712, second descending section; 713, second straight section; 714, third descending section; 715, third outlet section; 8, yarn feeding nozzle; 9, yarn nozzle ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Implementation Method 1

[0037] like Figure 1 and Figure 2 As shown, the present invention provides a circular knitting machine, comprising at least one needle cylinder 1, on which a plurality of needle grooves 13 are arranged at intervals along the circumference thereof, the outlet ends of the needle grooves 13 extend to a reference surface 15 of the needle cylinder 1, and knitting needles 2 are arranged in the needle grooves 13, and the knitting needles 2 extend from the outlet ends of the needle grooves 13, the needle cylinder 1 can drive the knitting needles 2 to rotate along the circumferential direction Z of the needle cylinder 1, and the knitting needles 2 can move forward or backward along the extension direction S of the needle grooves 13 relative to the reference surface 15; wherein, the width W of the needle groove 13 is set according to the thickness t of the knitting needle 2, and the thickness T of the groove wall 14 between two adjacent needle grooves 13 is set according to the number of the needle grooves 13, the diameter of the needle cylinder 1 and the width W of the needle groove 13.

[0038] The circular knitting machine of the present invention sets the width W of the needle groove 13 according to the thickness t of the knitting needle 2, and sets the thickness T of the groove wall 14 between two adjacent needle grooves 13 according to the number of needle grooves 13, the diameter of the needle cylinder 1 and the width W of the needle groove 13. Therefore, when manufacturing high-needle and high-density knitted fabrics, the width W of the needle groove 13 is reduced according to the thickness t of the knitting needle 2, and the thickness T of the groove wall 14 between two adjacent needle grooves 13 is increased, thereby improving the stability of the needle cylinder 1, avoiding the problem that the groove wall 14 between two adjacent needle grooves 13 is too thin due to too many knitting needles 2 installed on the needle cylinder 1, resulting in the groove wall 14 being easily deformed, and easily swinging to interfere with the knitting needle 2, resulting in the problem of needle collision.

[0039] Specifically, Figure 1 and Figure 5 As shown, the needle cylinder 1 is generally a hollow cylindrical structure. The needle groove 13 can be opened on the top surface 111 or the outer peripheral surface 122 of the needle cylinder 1. Optionally, according to the thickness t of the knitting needle 2, the needle groove 13 is opened on the top surface 111 or the outer peripheral surface 122 of the needle cylinder 1 by a milling machine. Optionally, after determining the thickness T of the groove wall 14 between two adjacent needle grooves 13, a partition of the same thickness is selected, and according to the width W of the needle groove 13, a plurality of partitions are installed on the top surface 111 or the outer peripheral surface 122 of the needle cylinder 1 along the circumferential direction Z of the needle cylinder 1 at intervals, so that a needle groove 13 is formed between two adjacent partitions. The specific structure and installation method of the knitting needle 2, the drive of the needle cylinder 1, and the basic working principle of the circular knitting machine are all prior art and will not be repeated here.

[0040] like Figure 2As shown, in the embodiment of the present invention, the width W of the needle groove 13 is 0.1mm-0.3mm larger than the thickness t of the knitting needle 2. The width W of the needle groove 13 is appropriate, the knitting needle 2 can move smoothly in the needle groove 13, and the structure of the groove wall 14 is stable and will not interfere with the knitting needle 2, thereby preventing the knitting needle 2 from rubbing against the groove wall 14 and causing the knitting needle 2 to wear or deform. Specifically, when the number of knitting needles 2 required to be installed on the needle cylinder 1 is more, the knitting needles 2 are thinner, the smaller the width W of the needle groove 13, and the smaller the difference between the width W of the needle groove 13 and the thickness t of the knitting needle 2, so that the thickness T of the groove wall 14 is as large as possible to maintain its stability.

[0041] like Figure 1 , Figure 2 as well as Figure 3 As shown, in the embodiment of the present invention, the thickness of the groove wall 14 is T, the number of needle grooves 13 is N, the circumference of the needle cylinder 1 is L, and the width of the needle groove 13 is W, then there is a relationship: T = L / NW. According to the requirements of the fabric to be woven, the knitting needles 2 are selected and the number of knitting needles 2 required to be installed on the needle cylinder 1 (i.e., the number of needle grooves 13) is determined, and then the width W of the needle groove 13 is determined according to the thickness t of the knitting needles 2, and finally the thickness T of the groove wall 14 is determined according to the above relationship, so that the number of knitting needles 2 installed on the needle cylinder 1 and the thickness T of the groove wall 14 meet the requirements, the structure is stable, and there is no needle collision during the knitting process.

[0042] like Figure 1 , Figure 2 , Figure 4 , Figure 6 as well as Figure 8 As shown, in an embodiment of the present invention, the circular knitting machine further includes at least one angular structure 3, the angular structure 3 is provided with at least one needle channel 4, the needle channel 4 is arranged opposite to the needle groove 13, the stitches of the knitting needle 2 move along the needle channel 4 so that the knitting needle 2 moves relative to the reference plane 15 along the extension direction of the needle groove 13, and the distance between the needle channel 4 and the reference plane 15 in the extension direction S of the needle groove 13 is set according to the thickness of the knitting needle 2.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, the circular knitting machine includes two needle cylinders 1 and two angular structures 3. The two needle cylinders 1 are respectively an upper needle cylinder 11 and a lower needle cylinder 12, and the upper needle cylinder 11 is located above the lower needle cylinder 12; the needle groove 13 of the upper needle cylinder 11 is a radial needle groove 131, which is arranged on the top surface 111 of the upper needle cylinder 11 along the radial direction of the upper needle cylinder 11, and the outlet end of the radial needle groove 131 extends to the outer peripheral surface 112 of the upper needle cylinder 11; the needle groove 13 of the lower needle cylinder 12 is an axial needle groove 132, which is arranged on the outer peripheral surface 122 of the lower needle cylinder 12 along the axial direction of the lower needle cylinder 12, and the outlet end of the axial needle groove 132 extends to the top surface 121 of the lower needle cylinder 12; the two angular structures 3 are respectively an upper angular structure 31 and a lower angular structure 32, the upper angular structure 31 is located above the upper needle cylinder 11, and the lower angular structure 32 is located outside the lower needle cylinder 12. The knitting needles 2 on the upper needle cylinder 11 and the knitting needles 2 on the lower needle cylinder 12 are knitted simultaneously to form a double-sided knitted fabric. Optionally, only one needle cylinder may be provided to knit a single-sided knitted fabric. Specifically, the radially outward direction of the upper needle cylinder 11 is the extension direction X of the radial needle groove 131. The outer peripheral surface 112 of the upper needle cylinder 11 is the reference surface 15 of the upper needle cylinder 11. The axially upward direction of the lower needle cylinder 12 is the extension direction Y of the axial needle groove 132. The top surface 121 of the lower needle cylinder 12 is the reference surface 15 of the lower needle cylinder 12.

[0044] While the knitting needle 2 rotates synchronously with the upper needle cylinder 11 along the circumferential direction Z thereof, the needle path 4 on the angular structure 3 guides the pin movement of the knitting needle 2, thereby driving the knitting needle 2 to move forward or backward (i.e., extend outward or retract inward) relative to the reference surface 15 (i.e., the outer circumferential surface 112 of the upper needle cylinder 11) along the extension direction X of the radial needle groove 131, thereby causing the working end of the knitting needle 2 to move along the same trajectory as the needle path 4 in the circumferential direction Z of the upper needle cylinder 11, thereby achieving weaving. Similarly, while the knitting needle 2 rotates synchronously with the lower needle cylinder 12 along the circumferential direction Z thereof, the needle path 4 on the angular structure 3 guides the pin movement of the knitting needle 2, thereby driving the knitting needle 2 to move forward or backward (i.e., extend outward or retract inward) relative to the reference surface 15 (i.e., the top surface 121 of the lower needle cylinder 12) along the extension direction Y of the axial needle groove 132, thereby causing the working end of the knitting needle 2 to move along the same trajectory as the needle path 4 in the circumferential direction Z of the upper needle cylinder 11, thereby achieving weaving. Therefore, by setting the distance between the needle path 4 and the reference plane 15 in the extending direction S of the needle groove 13 according to the thickness t of the knitting needle 2, the length h of the knitting needle 2 extending from the needle groove 13 relative to the reference plane 15 is controlled.

[0045] Specifically, Figure 1 and Figure 2As shown in the figure, the smaller the thickness t of the knitting needle 2 is, the shorter the length h of the knitting needle 2 extending from the needle groove 13 relative to the reference plane 15 is, so that the knitting needle 2 is not easy to swing to its sides and collide with the knitting needles 2 on both sides. This is equivalent to translating the needle channel 4 in the opposite direction of the extension direction S of the needle groove 13, so that the moving trajectory of the working end of the knitting needle 2 in the circumferential direction Z of the needle cylinder 1 remains basically unchanged, and only the distance between the moving trajectory and the reference plane 15 is reduced. In this embodiment, when the circular knitting machine uses thinner knitting needles 2 (thickness not exceeding 0.3mm) to knit high-needle and high-density knitted fabrics, compared to when the circular knitting machine uses thicker knitting needles 2 (thickness exceeding 0.3mm) to knit ordinary fabrics, the needle channel 4 on the upper angular structure 31 is translated by 1mm-3mm in the opposite direction of the extension direction X of the radial needle groove 131, thereby reducing the length h of the knitting needle 2 extending from the radial needle groove 131, and the needle channel 4 on the lower angular structure 32 is translated by 1mm-3mm in the opposite direction of the extension direction Y of the axial needle groove 132, thereby reducing the length h of the knitting needle 2 extending from the needle groove 13, thereby improving the stability of the knitting needle 2 without hindering the working end of the knitting needle 2 from extending from the needle groove 13 for knitting.

[0046] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, the needle channel 4 includes a flat needle channel 41, and the needle foot moves along the flat needle channel 41 to make the knitting needle 2 translate along the circumference of the needle cylinder 1. The thickness t of the knitting needle 2 is 0.15mm-0.3mm, and the length h of the knitting needle 2 extending from the needle groove 13 relative to the reference plane 15 in the translation state is 12mm-14mm. When the circular knitting machine is knitting high-needle and high-density knitted fabrics, the knitting needle 2 is stable and not easy to hit the needle.

[0047] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9As shown, the needle passage 4 also includes a needle pressing passage 42, a needle raising passage 43 and a needle exit passage 44 which are connected in sequence. The pin enters the needle pressing passage 42, the needle raising passage 43 and the needle exit passage 44 in sequence from a flat needle passage 41 and enters another flat needle passage 41 from the needle exit passage 44. The pin moves along the needle pressing passage 42 to make the knitting needle 2 retreat along the extension direction S of the needle groove 13. The pin moves along the needle raising passage 43 to make the knitting needle 2 advance along the extension direction S of the needle groove 13. The pin moves along the needle exit passage 44 to make the knitting needle 2 retreat and reset along the extension direction S of the needle groove 13. The pin of the knitting needle 2 moves along the needle pressing passage 42 and the needle raising passage 43 in sequence, so that the working end of the knitting needle 2 weaves the yarn into a new interlaced loop, and then the pin of the knitting needle 2 moves along the needle exit passage 44 to make the new interlaced loop withdraw from the working end of the knitting needle 2. Specifically, the needle passages 4 on the upper angular structure 31 and the lower angular structure 32 correspond to each other in the circumferential direction Z of the needle cylinder 1, that is, the pins of the corresponding knitting needles 2 on the upper needle cylinder 11 and the lower needle cylinder 12 enter the needle pressing passage 42, the needle raising passage 43 and the needle exit passage 44 in sequence to achieve knitting. In addition, the rotation speeds of the upper needle cylinder 11 and the lower needle cylinder 12 are the same, but due to the different outer diameters of the upper needle cylinder 11 and the lower needle cylinder 12, the linear speeds at the pin positions of the knitting needles 2 are slightly different. The needle passages 4 of the upper angular structure 31 and the needle passages 4 of the lower angular structure 32 are basically similar, with only a slight difference in size, so they are not described separately in the following content.

[0048] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9As shown, in the embodiment of the present invention, the angular structure 3 includes at least one angular block group 34, and the angular block group 34 includes a first angular block 5, a second angular block 6, and a third angular block 7 arranged in sequence along the circumferential direction Z of the needle cylinder 1. The first angular block 5 is provided with a first channel 51, the second angular block 6 is provided with a second channel 61, and the third angular block 7 is provided with a third channel 71. The first channel 51, the second channel 61, and the third channel 71 are connected in sequence to form a needle passage 4. By processing the first channel 51 on the first angular block 5, processing the second channel 61 on the second angular block 6, and processing the third channel 71 on the third angular block 7, the needle passage 4 is formed by splicing along the circumferential direction Z of the needle cylinder 1, which is convenient for processing, and it is also convenient to adjust the coordination between the channels by adjusting the installation position of each angular block to adjust the needle passage 4. Specifically, a plurality of angular block groups 34 are arranged closely along the circumferential direction Z of the needle cylinder 1 (not shown in the figure). The angular block group 34 is installed on the main structure of the circular knitting machine through the angular seat 33. The distance between the needle running channel 4 and the reference surface 15 in the extension direction S of the needle groove 13 can be changed by changing the installation position of the corner block group 34 on the corner seat 33. The distance between the needle running channel 4 and the reference surface 15 in the extension direction S of the needle groove 13 can also be changed by changing the opening position of the needle running channel 4 on the corner block group 34. Optionally, the needle running channel can also be directly processed on an corner block. Optionally, the needle running channel can also be formed by connecting the channels on two, four, five or more corner blocks arranged along the circumference of the needle cylinder.

[0049] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, the first channel 51 includes a first straight section 511 and a first outlet section 512. The first straight section 511 is connected with the first outlet section 512 to form a flat needle channel 41. The first outlet section 512 gradually expands along its extension direction and its width is greater than the width of the inlet end of the second channel 61. By setting the first outlet section 512, the stitches of the knitting needles 2 enter the second channel 61 under the guidance of the first outlet section 512. By setting the first outlet section 512 on the first corner block 5, it is convenient for processing, and it is also convenient to adjust the relative positions of the first corner block 5 and the second corner block 6 so that the first outlet section 512 and the second channel 61 are better matched. Specifically, the first straight section 511 extends along the circumference of the needle cylinder 1, so that the knitting needles 2 translate along the circumference of the needle cylinder 1 without knitting.

[0050] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9As shown, the second channel 61 includes a first descending section 611, a first ascending section 612 and a second outlet section 613 that are connected to each other, and the third channel 71 includes a second ascending section 711. The first descending section 611 is connected to the first outlet section 512, and the first descending section 611 constitutes a needle pressing channel 42. The first ascending section 612 and the second ascending section 711 are connected through the second outlet section 613 to constitute a needle lifting channel 43. The inner wall surface of the second outlet section 613 close to the reference plane 15 extends along the ascending direction of the first ascending section 612, and the inner wall surface of the second outlet section 613 away from the reference plane 15 extends straight. By setting the second outlet section 613, the first rising section 612 and the second rising section 711 are connected to form the needle raising channel 43, so as to use the inner wall surface of the second outlet section 613 away from the reference surface 15 for buffering, so as to avoid the knitting needles 2 from rising continuously and causing too much load on the knitting circular knitting machine, especially when knitting high-needle and high-density knitted fabrics, there are many knitting needles 2, and the pins of multiple knitting needles 2 need to be extended forward at the same time under the push of the needle raising channel 43. If the load is large, some knitting needles 2 will not be able to be extended smoothly and will collide with the knitting needles 2 behind. In addition, by setting the second outlet section 613, the knitting needles 2 can also be guided into the second rising section 711. By setting the second outlet section 613 on the second corner block 6, it is convenient for processing, and it is also convenient to adjust the relative positions of the second corner block 6 and the third corner block 7 so that the second outlet section 613 and the second rising section 711 can be better matched. Specifically, the first descending section 611 is inclined relative to the first straight section 511 toward the side away from the reference surface 15. The first rising section 612 and the second rising section 711 are inclined relative to the first straight section 511 toward a side close to the reference surface 15 .

[0051] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9As shown, the third channel 71 also includes a second descending section 712, a second straight section 713, a third descending section 714 and a third outlet section 715 which are connected in sequence, the second descending section 712 is connected to the second ascending section 711, the second descending section 712, the second straight section 713, the third descending section 714 and the third outlet section 715 are connected to form a needle outlet channel 44, the inner wall surface of the third outlet section 715 close to the reference plane 15 extends straight, the inner wall surface of the third outlet section 715 away from the reference plane 15 extends obliquely toward the side away from the reference plane 15, and the width of the third outlet section 715 is greater than the width of the inlet end of the first straight section 511. The second straight section 713 is provided to connect the second descending section 712 and the third descending section 714, so as to use the second straight section 713 for buffering, so as to prevent the knitting needles 2 from continuously descending and causing the descending speed to be too fast, resulting in needle collision, especially when knitting high-needle and high-density knitted fabrics, there are many knitting needles 2, and the pins of multiple knitting needles 2 need to be simultaneously retracted under the push of the needle outlet channel 44. If the retraction speed is too fast, it will cause collision between the knitting needles 2. The third outlet section 715 can be provided to guide the knitting needles 2 into the next flat needle channel 41. By providing the third outlet section 715 to one end of the third corner block 7, it is convenient for processing, and it is also convenient to adjust the relative position of the third corner block 7 and the other first corner block 5 so that the third outlet section 715 and the first flat needle channel 41 are better matched.

[0052] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, specifically, the second straight section 713 is arranged to extend along the circumference of the needle cylinder 1. The second descending section 712 and the third descending section 714 are both arranged to be inclined toward the side away from the reference plane 15 relative to the second straight section 713, and the slopes are similar. The slope of the inner wall surface of the third outlet section 715 away from the reference plane 15 is smaller than the slopes of the second descending section 712 and the third descending section 714. Therefore, the third outlet section 715 also has a certain buffering effect, so that the knitting needle 2 can enter the next flat needle channel 41 more smoothly to avoid the needle collision phenomenon.

[0053] like Figure 6 , Figure 7 , Figure 8 as well as Fig. 9As shown, two needle channels 4 are arranged on the angular structure 3 along the extension direction S of the needle groove 13, and the flat needle channels 41 on the two needle channels 4 are arranged alternately in the circumferential direction Z of the needle cylinder 1. Two knitting needles 2 with different stitch positions are installed on the needle cylinder 1, and the stitches of the two knitting needles 2 move along the two needle channels 4 respectively, so that the working ends of the two knitting needles 2 are knitted respectively, thereby forming a more complex knitting structure. In addition, by staggering the flat needle channels 41 on the two needle channels 4 in the circumferential direction of the needle cylinder 1, the two knitting needles 2 are alternately knitted in the circumferential direction Z of the needle cylinder 1, avoiding the two knitting needles 2 from knitting at the same time and causing needle collision. Optionally, only one needle channel is provided on the angular structure, so as to weave a simple knitting structure. Optionally, three, four or more needle channels are arranged on the angular structure along the extension direction of the needle groove, so as to weave a more complex knitting structure.

[0054] like Figure 1 , Figure 3 as well as Figure 4 As shown, the circular knitting machine also includes at least one yarn feeding mouth 8, which is located on the outside of the upper angular structure 31 and above the lower angular structure 32. The yarn feeding mouth 8 is used to deliver the yarn to the working end of the knitting needle 2, and the material of the yarn feeding mouth 8 is ceramic material. The yarn feeding mouth 8 is made of ceramic material, so that the yarn feeding mouth 8 is not easy to wear the knitting needle 2, and it will not be damaged and deformed due to friction and temperature rise. Specifically, the yarn feeding mouth 8 is installed on the main structure of the circular knitting machine through the yarn mouth ring 9. The yarn mouth ring 9 is located at a plurality of yarn feeding mouths 8 arranged at intervals along the circumference of the yarn mouth ring 9. The distribution diameter of the yarn feeding mouth 8 is set according to the length h of the knitting needle 2 extending from the needle groove 13, so that the yarn feeding mouth 8 matches the movement trajectory of the knitting needle 2. As shown Figure 2 As shown, when the circular knitting machine of this embodiment is knitting high-needle and high-density knitted fabrics, compared with knitting ordinary knitted fabrics, the length h of the knitting needle 2 extending from the needle groove 13 is shortened by 1mm-3mm, and the distribution radius of the yarn feeding mouth 8 is adaptively reduced by 1mm-3mm.

[0055] Implementation Method 2

[0056] like Figure 1 and Figure 2 As shown, the present invention also provides a method for manufacturing high-needle and high-density knitted fabrics, using a circular knitting machine, comprising the following steps: according to the thickness t of the knitting needle 2, reducing the width W of the needle groove 13 and increasing the thickness T of the groove wall 14 between two adjacent needle grooves 13; according to the thickness t of the knitting needle 2, reducing the length h of the knitting needle 2 extending from the needle groove 13 relative to the reference plane 15; moving the needle foot of the knitting needle 2 along the needle passage 4, so that the working end of the knitting needle 2 is knitted. Among them, the width W of the needle groove 13, the thickness t of the knitting needle 2, the number N of the knitting needle 2 and the thickness T of the groove wall 14 are the same as those in the first embodiment, and are not repeated here.

[0057] like Figure 1 , Figure 2 as well as Figure 5 As shown, in the embodiment of the present invention, reducing the length h of the knitting needle 2 extending out comprises the following steps: the needle groove 13 is an axial needle groove 132, which is arranged on the outer peripheral surface 122 of the lower needle cylinder 12 along the axial direction of the lower needle cylinder 12, and the outlet end of the axial needle groove 132 extends to the top surface 121 of the lower needle cylinder 12, the top surface 121 of the lower needle cylinder 12 is the reference surface 15 of the lower needle cylinder 12, and the height of the top surface 121 of the lower needle cylinder 12 is increased according to the thickness t of the knitting needle 2; and / or the needle groove 13 is a radial needle groove 131, which is arranged on the top surface 111 of the upper needle cylinder 11 along the radial direction of the upper needle cylinder 11, and the outlet end of the radial needle groove 131 extends to the outer peripheral surface 112 of the upper needle cylinder 11, the outer peripheral surface 112 of the upper needle cylinder 11 is the reference surface 15 of the upper needle cylinder 11, and the radial dimension of the outer peripheral surface 112 of the upper needle cylinder 11 is enlarged according to the thickness t of the knitting needle 2. By increasing the height of the top surface 121 of the lower needle cylinder 12 and / or increasing the radial dimension of the outer peripheral surface 112 of the upper needle cylinder 11, the length h of the knitting needle 2 extending from the needle groove 13 relative to the reference plane 15 is reduced, so that the structure of the working end of the knitting needle 2 is more stable and less likely to hit the needle. Specifically, compared with knitting ordinary knitted fabrics, the height of the top surface 121 of the lower needle cylinder 12 is increased by 0.2mm-1mm, and the radius of the outer peripheral surface 112 of the upper needle cylinder 11 is increased by 0.2mm-1mm.

[0058] like Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, in the embodiment of the present invention, reducing the length h of the knitting needle 2 extending includes the following steps: translating the needle channel 4 in the opposite direction of the extension direction S of the needle slot 13 to increase the distance between the needle channel 4 and the reference plane 15 in the extension direction S of the needle slot 13. When the stitches of the knitting needle 2 move along the needle channel 4, the length h of the knitting needle 2 extending from the needle slot 13 relative to the reference plane 15 is reduced.

[0059] The above are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A circular knitting machine, characterized in that: The needle cylinder comprises at least one needle cylinder, wherein a plurality of needle grooves are arranged at intervals along the circumference thereof, wherein the outlet ends of the needle grooves extend to a reference surface of the needle cylinder, wherein knitting needles are arranged in the needle grooves, and the knitting needles extend from the outlet ends of the needle grooves, wherein the needle cylinder can drive the knitting needles to rotate along the circumference of the needle cylinder, and the knitting needles can move forward or backward relative to the reference surface in the extending direction of the needle grooves; Wherein, the width of the needle groove is set according to the thickness of the knitting needle, and the thickness of the groove wall between two adjacent needle grooves is set according to the number of the needle grooves, the diameter of the needle cylinder and the width of the needle groove; The width of the needle groove is 0.1mm-0.3mm greater than the thickness of the knitting needle; The thickness of the groove wall is T, the number of the needle grooves is N, the circumference of the syringe is L, and the width of the needle groove is W, then there is a relationship: T=L / NW.

2. The circular knitting machine according to claim 1, characterized in that: The circular knitting machine also includes at least one angular structure, which is provided with at least one needle channel. The needle channel is arranged opposite to the needle groove. The stitches of the knitting needles move along the needle channel so that the knitting needles move forward or backward relative to the reference plane in the extension direction of the needle groove. The distance between the needle channel and the reference plane in the extension direction of the needle groove is set according to the thickness of the knitting needles.

3. The circular knitting machine according to claim 2, characterized in that: The needle channel includes a flat needle channel, and the stitch moves along the flat needle channel to make the knitting needle translate along the circumference of the needle cylinder. The thickness of the knitting needle is 0.15mm-0.3mm, and the length of the knitting needle extending from the needle groove relative to the reference plane in the translation state is 12mm-14mm.

4. The circular knitting machine according to claim 3, characterized in that: The needle moving channel also includes a needle pressing channel, a needle raising channel and a needle exit channel which are connected in sequence. The stitch enters the needle pressing channel, the needle raising channel and the needle exit channel in sequence from one flat needle channel and enters another flat needle channel from the needle exit channel. The stitch moves along the needle pressing channel to cause the knitting needle to retreat in the extension direction of the needle groove. The stitch moves along the needle raising channel to cause the knitting needle to advance in the extension direction of the needle groove. The stitch moves along the needle exit channel to cause the knitting needle to retreat and reset in the extension direction of the needle groove.

5. The circular knitting machine according to claim 4, characterized in that: The corner structure includes at least one corner block group, which includes a first corner block, a second corner block and a third corner block arranged in sequence along the circumference of the needle cylinder, the first corner block is provided with a first channel, the second corner block is provided with a second channel, and the third corner block is provided with a third channel, and the first channel, the second channel and the third channel are connected in sequence to form the needle moving channel.

6. The circular knitting machine according to claim 5, characterized in that: The first channel includes a first straight section and a first outlet section. The first straight section is connected with the first outlet section to form the flat needle channel. The first outlet section gradually expands along its extension direction and its width is greater than the width of the inlet end of the second channel.

7. The circular knitting machine according to claim 6, characterized in that: The second channel includes a first descending section, a first ascending section and a second outlet section that are connected to each other. The third channel includes a second ascending section. The first descending section is connected to the first outlet section. The first descending section constitutes the needle pressing channel. The first ascending section and the second ascending section are connected through the second outlet section to constitute the needle lifting channel. The inner wall surface of the second outlet section close to the reference plane extends along the ascending direction of the first ascending section, and the inner wall surface of the second outlet section away from the reference plane extends straight.

8. The circular knitting machine according to claim 7, characterized in that: The third channel also includes a second descending section, a second straight section, a third descending section and a third outlet section which are connected in sequence, the second descending section is connected with the second ascending section, the second descending section, the second straight section, the third descending section and the third outlet section are connected to form the needle outlet channel, the inner wall surface of the third outlet section close to the reference plane extends straight, the inner wall surface of the third outlet section away from the reference plane extends obliquely toward the side away from the reference plane, and the width of the third outlet section is greater than the width of the inlet end of the first straight section.

9. The circular knitting machine according to claim 4, characterized in that: Two needle passages are arranged on the angular structure along the extension direction of the needle groove, and the flat needle passages on the two needle passages are arranged alternately in the circumferential direction of the needle cylinder.

10. The circular knitting machine according to any one of claims 2 to 9, characterized in that: The circular knitting machine comprises two needle cylinders and two angular structures, the two needle cylinders are respectively an upper needle cylinder and a lower needle cylinder, the upper needle cylinder is located above the lower needle cylinder; the needle groove of the upper needle cylinder is a radial needle groove, the radial needle groove is arranged on the top surface of the upper needle cylinder along the radial direction of the upper needle cylinder, and the outlet end of the radial needle groove extends to the outer peripheral surface of the upper needle cylinder; the needle groove of the lower needle cylinder is an axial needle groove, the axial needle groove is arranged on the outer peripheral surface of the lower needle cylinder along the axial direction of the lower needle cylinder, and the outlet end of the axial needle groove extends to the top surface of the lower needle cylinder; The two angular structures are respectively an upper angular structure and a lower angular structure, wherein the upper angular structure is located above the upper needle cylinder, and the lower angular structure is located outside the lower needle cylinder.

11. The circular knitting machine according to claim 10, characterized in that: The circular knitting machine also includes at least one yarn feeding mouth, which is located outside the upper angular structure and above the lower angular structure. The yarn feeding mouth is used to feed the yarn to the working end of the knitting needle, and the material of the yarn feeding mouth is ceramic material.

12. A method for manufacturing high-needle and high-density knitted fabric, characterized in that: The circular knitting machine according to any one of claims 1 to 11 comprises the following steps: According to the thickness of the knitting needle, the width of the needle groove is reduced and the thickness of the groove wall between two adjacent needle grooves is increased; According to the thickness of the knitting needle, reducing the length of the knitting needle extending from the needle groove relative to the reference plane; The pins of the knitting needles are moved along the needle passage so that the working ends of the knitting needles can be knitted.

13. The method for manufacturing high-needle and high-density knitted fabric according to claim 12, characterized in that: Reducing the length of the knitting needle extension comprises the following steps: The needle groove is an axial needle groove, which is arranged on the outer peripheral surface of the lower needle cylinder along the axial direction of the lower needle cylinder, and the outlet end of the axial needle groove extends to the top surface of the lower needle cylinder, and the top surface of the lower needle cylinder is the reference surface of the lower needle cylinder, and the height of the top surface of the lower needle cylinder is increased according to the thickness of the knitting needle; and / or The needle groove is a radial needle groove, which is arranged on the top surface of the lower needle cylinder along the radial direction of the upper needle cylinder. The outlet end of the radial needle groove extends to the outer circumferential surface of the upper needle cylinder. The outer circumferential surface of the upper needle cylinder is the reference surface of the upper needle cylinder. The radial dimension of the outer circumferential surface of the upper needle cylinder is expanded according to the thickness of the knitting needle.

14. The method for manufacturing high-needle and high-density knitted fabric according to claim 12, characterized in that: Reducing the length of the knitting needle extension comprises the following steps: The needle moving channel is translated in the opposite direction to the extending direction of the needle slot to increase the distance between the needle moving channel and the reference plane in the extending direction of the needle slot.

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