Double-needle sock machine and method for knitting sock cuffs
By using tablets of different lengths and specific tracks in the double-single sock machine, the staggered arrangement of the double-headed tongue needles is achieved, which solves the complexity of the needle selection mechanism when knitting the sock mouth of the double-single sock machine in the prior art. The cost increase problem has achieved efficient and reliable needle knitting effect.
Patent Information
- Application Number
- CN202411315345.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2044-09-20
AI Technical Summary
When knitting the socks, existing double-single sock machines need to be equipped with a complex needle selection mechanism to achieve needle knitting of double-headed tongue needles, resulting in increased manufacturing and maintenance costs.
A double syringe sock machine is designed, using the axial grooves and steel rings of the upper and lower syringes to achieve the interlaced arrangement of the double-headed tongue needles at different heights through the pressing plates and specific tracks of different lengths, simplifying the needle knitting process .
By using different lengths of pressing pieces and specific tracks at intervals, the efficient knitting of double-headed tongue needles is achieved, with simple structure and reliable operation, reducing manufacturing and maintenance costs.
Smart Images
Figure CN118814346B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of knitting machinery, in particular to a double-cylinder sock machine and a method for knitting sock openings using the double-cylinder sock machine. Background Art
[0002] The double-cylinder hosiery machine has two needle cylinders, one above the other. There are needle guides in the grooves of the upper and lower needle cylinders. The loop forming part is a double-headed latch needle. The two ends of the double-headed latch needle can be matched with the upper and lower needle guides respectively to knit the front loop or the back loop. Due to this feature, it can knit more complex fabric types.
[0003] On the other hand, when knitting the initial several rows of loops at the sock opening, it is necessary to adopt the method of interlaced knitting, that is, only one of the two adjacent knitting needles is involved in the knitting. In the case of a double needle cylinder, it is necessary to connect one of the two adjacent double-headed latch needles to the upper needle guide and the other to the lower needle guide. In the prior art, in order to achieve this function, a needle selection mechanism that is the same as that of the lower needle cylinder is usually set on the upper needle cylinder, and the needle guide on the upper needle cylinder is selected at intervals to make it cooperate with or disengage from the double-headed latch needle. This is actually a relatively wasteful approach, because jacquard knitting is generally achieved by the double-headed latch needle when the lower needle cylinder is used, and the upper needle cylinder does not require a needle selection mechanism that can be arbitrarily selected. The upper needle cylinder only needs to allow the double-headed latch needle to have two states of the same height or different heights at intervals. Therefore, the prior art approach is equivalent to using a butcher knife to kill a chicken, which will lead to an increase in manufacturing and maintenance costs. Summary of the invention
[0004] The purpose of the present invention is to provide a double-cylinder sock machine and a method for knitting sock openings using the double-cylinder sock machine, which can simply and conveniently realize the knitting of double-head latch needles with spaced needles.
[0005] The technical solution adopted by the present invention is as follows: a double-cylinder hosiery machine includes two upper and lower needle cylinders and a double-headed latch needle. The outer walls of the upper and lower needle cylinders are arranged with a plurality of axial grooves for accommodating knitting components; the outer peripheries of the upper and lower needle cylinders are provided with steel rings, and the annular inner walls of the steel rings are provided with a plurality of tracks or cams to match with the specific geometric shapes of the knitting components; an upper needle guide piece is arranged in the axial groove of the upper needle cylinder, and a lower needle guide piece is arranged in the axial groove of the lower needle cylinder, and the double-headed latch needle cooperates with the upper needle guide piece or the lower needle guide piece respectively as required, so as to knit on the upper needle cylinder or the lower needle cylinder; wherein the upper needle cylinder is provided with an upper needle guide piece or a lower needle guide piece, and the upper needle cylinder is provided with a lower needle guide piece. An upper control plate is also provided in the axial groove of the needle cylinder, and the lower end of the upper control plate is connected to the upper end of the upper needle guide plate by matching geometric buckles; the characteristic is that: there is also a pressing plate in the axial groove of the upper needle cylinder, which is located above the upper control plate; the pressing plates are divided into first-class pressing plates and second-class pressing plates, both of which have a heel, wherein the length of the first-class pressing plates below the heel is greater than that of the second-class pressing plates, and the first-class pressing plates and the second-class pressing plates are arranged at intervals in adjacent axial grooves; the inner wall of the steel ring on the outer periphery of the upper needle cylinder has a track for the heel of the pressing plate to run, and the track has an ascending section and a descending section.
[0006] Furthermore, the track for the heel of the sheet press to run has, in addition to the normal complete track, another section of bifurcated track, which is higher than the normal track and connected to the normal track through an upward section and a downward section.
[0007] The present invention also adopts such a technical scheme: a method for knitting sock openings with a double-needle cylinder sock machine, adopting the aforementioned double-needle cylinder sock machine, characterized in that: when knitting the sock openings, the heel of the pressing plate is firstly entered into the upward section of the track, and then enters the downward section to move downward; when the pressing plate moves downward, the first type of pressing plate pushes the upper control plate and the upper needle guide plate in the same groove with it to a lower position, so that the double-headed latch needles of adjacent axial grooves form a staggered arrangement of one high and one low.
[0008] The present invention uses pressing plates of different lengths at intervals so that the corresponding double-headed latch needles can be at different heights to form spaced-needle knitting; this function can be achieved only through the cooperation of two pressing plates and a specific track, with a simple structure and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 2 is an exploded schematic diagram of this embodiment.
[0010] Figure 2 Schematic diagram of knitting components and needle movement of this embodiment.
[0011] The reference numerals are as follows: 1-machine table; 2-column; 3-cantilever; 4-upper needle cylinder; 40-upper steel ring; 41-upper needle guide; 411-heel; 412-protruding end; 42-upper control plate; 421-heel; 422-recessed end; 431, 432-pressing plate; 433-heel; 461, 462, 463, 464-cam; 47-track; 471-branch track; 5-lower needle cylinder; 50-lower steel ring; 51-lower needle guide; 511-heel; 512-protruding end; 52-lower control plate; 521-heel; 522-recessed end; 53-needle selection plate; 531-cantilever end; 532-heel; 533-radial force-bearing end; 551, 552, 553, 554, 555, 561-cam; 7-electromagnetic needle selector; 9-double-headed latch needle. DETAILED DESCRIPTION
[0012] See attached Figure 1 The double-needle hosiery machine of this embodiment includes a machine platform 1, on which a column 2 and a lower needle cylinder 5 are arranged, and the lower needle cylinder 5 can rotate around its own axis; a main shaft is arranged in the column to drive a cantilever 3 at the upper end of the column, and the other end of the cantilever 3 is provided with an upper needle cylinder 4, and the rotation of the cantilever drives the upper needle cylinder to perform circular motion, so as to be coaxial or non-coaxial with the lower needle cylinder. In the working state, the upper needle cylinder 4 is coaxial with the lower needle cylinder 5, and rotates synchronously along its own axis.
[0013] The upper needle cylinder is surrounded by an upper steel ring 40, and the lower needle cylinder is surrounded by a lower steel ring 50. The upper steel ring and the lower steel ring are collectively referred to, and are both composed of several parts, and several tracks and cams are formed inside. These two steel rings themselves are prior art, and the innovation involved in the present invention will be described in detail below. Among them, several electromagnetic needle selectors 7 are arranged outside the lower steel ring, and the front end of the lower steel ring has a knife head, which can extend or retract in the axial direction of the lower needle cylinder according to the command.
[0014] See attached Figure 2. The outer wall of the upper needle cylinder 4 has an axial groove, and the knitting parts of the upper needle cylinder are built in, which are respectively an upper needle guide 41, an upper control plate 42 and a pressing plate 431 or 432 from bottom to top; wherein the upper needle guide 41 has an inverted trapezoidal protruding end 412 at the upper end, and an inverted trapezoidal recessed end 422 at the lower end, and the protruding end 412 and the recessed end 422 are interlocked with each other; the upper needle guide 41 and the upper control plate 42 also have heels 411 and 421 respectively. The pressing plates are divided into two categories, marked as first-category pressing plates 431 and second-category pressing plates 432, both of which have a heel 433. The difference is that the first-category pressing plate 431 continues to extend downward at the lower part of the heel 433 to form a T-shape, while the second-category pressing plate 432 has no part below the heel 433, so it forms an L-shape. The two types of pressing plates are arranged alternately in the circumferential direction, that is, in a certain axial groove of the upper needle cylinder, the arrangement is the upper needle guide plate 41, the upper control plate 42 and the pressing plate 431, and in the adjacent axial groove, the arrangement is the upper needle guide plate 41, the upper control plate 42 and the pressing plate 432, and so on.
[0015] The outer wall of the lower needle cylinder 5 also has an axial groove, and the knitting parts of the lower needle cylinder are built in, which are the lower needle guide 51, the lower control plate 52 and the needle selection 53 from top to bottom; the lower needle guide 51 has a protruding end 512 in the shape of an inverted trapezoid, and the upper end of the lower control plate has a recessed end 522 in the shape of an inverted trapezoid, and the protruding end 512 and the recessed end 522 are interlocked with each other; the lower needle guide 51 and the lower control plate 52 also have heels 511 and 521 respectively. The needle selection 53 has a body, and there is a slender elastic cantilever end 531 extending outward on the body. The body has a heel 532 and a plurality of radial force-bearing ends 533 on the opposite side of the cantilever end. When the blade of the electromagnetic needle selector 7 is extended, it can touch the radial force-bearing end 533.
[0016] A double-headed latch needle 9 is provided between the upper needle guide 41 and the lower needle guide 51, that is, between the upper needle cylinder 4 and the lower needle cylinder 5, and is combined with the upper needle guide 41 or the lower needle guide 51 as needed to achieve different knitting requirements.
[0017] The inner wall of the upper steel ring has several tracks and cams at different heights, such as cams 461, 462, 463, and 464, which act on the heel 421 to push up or down the upper control plate 42; other cams act on the heel 411 of the upper needle guide, or the recessed portion 422 of the upper control plate, or the lower end of the upper needle guide. In short, through the design of the geometric shape of the specific cam, the upper needle guide or the upper control plate is given axial or radial force to produce axial or radial movement. It is worth mentioning that the inner wall of the upper steel ring has a track 47 for accommodating the heel 433 of the pressing plate, which is a complete circular track, which includes a bifurcated track 471 that is higher than the track 47 and is connected to the track 47 through the upward and downward sections.
[0018] When knitting the initial several rows of loops at the sock opening, the cam 462 is first used to act on the heel 421 to move the knitting part of the upper needle cylinder upward, and the heel 433 of the pressing plate is also lifted and enters the bifurcated track 471; when returning from the bifurcated track 471 to the track 47, the pressing plate moves downward, and at this time the lower end of the pressing plate 431 touches the upper control plate 42, pressing the upper control plate 42 together with the upper needle guide 41, and the pressing plate 432 cannot contact the upper control plate 42, so the corresponding upper control plate 42 and upper needle guide 41 are still running at the original height. That is, in the circumferential direction, the heights of the two upper needle guides in the adjacent axial grooves are inconsistent, which ultimately leads to the heights of the two adjacent double-headed latch needles being inconsistent and staggered.
[0019] The lower steel ring is similar to the upper steel ring, and also has cams 551, 552, 553, 554, 555, 561, etc. acting on the heel 521 of the lower control plate or the heel 511 of the lower needle guide plate to make it rise or fall in the axial direction. The needle selector 53 cooperates with the electromagnetic needle selector 7. When the blade of the electromagnetic needle selector touches the radial force-bearing end 533 of the needle selector, the needle selector is pressed in the axial direction of the lower needle cylinder, so that the elastic cantilever end 531 is compressed and bent. At this time, the heel 532 of the needle selector is staggered with the corresponding track and no axial movement occurs. When the blade of the electromagnetic needle selector leaves, the elastic force of the elastic cantilever end 531 causes the heel 532 to enter the corresponding track and run along the track. When the needle selector 53 moves upward, it touches the lower control plate 52 and the lower needle guide plate 51 and also moves upward to a higher position, so that the second cam in the lower steel ring (not shown in the figure) can act on the recessed portion 522 of the lower control plate, or the first cam in the lower steel ring (not shown in the figure) can act on the upper end of the lower needle guide plate 51, so that the lower needle guide plate 51 can produce radial movement to cooperate with or disengage from the double-headed latch needle.
[0020] From the above description, it can be seen that only in the selected axial groove, the upward movement of the needle selector can cause the radial swing of the lower needle guide and the action of the double-headed latch needle. This needle selection method is simple and efficient.
Claims
1. A double-cylinder hosiery machine, comprising two needle cylinders, an upper needle cylinder and a double-headed latch needle, wherein the outer walls of the upper and lower needle cylinders are both provided with a plurality of axial grooves for accommodating knitted components; the outer peripheries of the upper and lower needle cylinders are both provided with steel rings, and the annular inner walls of the steel rings are provided with a plurality of tracks or cams for matching with specific geometric shapes of the knitted components; an upper needle guide piece is provided in the axial groove of the upper needle cylinder, and a lower needle guide piece is provided in the axial groove of the lower needle cylinder, and the double-headed latch needle matches with the upper needle guide piece or the lower needle guide piece respectively as required, so as to knit on the upper needle cylinder or the lower needle cylinder; wherein an upper control piece is also provided in the axial groove of the upper needle cylinder, and the lower end of the upper control piece is buckled and connected with the upper end of the upper needle guide piece by mutually matching geometric shapes; Features: There is also a pressing plate in the axial groove of the upper needle cylinder, which is located above the upper control plate; the pressing plate is divided into a first type pressing plate and a second type pressing plate, both of which have a heel, wherein the length of the first type pressing plate below the heel is greater than that of the second type pressing plate, and the first type pressing plate and the second type pressing plate are arranged at intervals in adjacent axial grooves; the inner wall of the steel ring on the outer periphery of the upper needle cylinder has a track for the heel of the pressing plate to run, and the track has an ascending section and a descending section; the track for the heel of the pressing plate to run, in addition to the normal complete track, has another forked track, the forked track is higher than the normal track, and is connected to the normal track through the ascending section and the descending section.
2. A method for knitting sock cuffs using a double-cylinder sock machine, using the double-cylinder sock machine as claimed in claim 1, Features: When knitting the sock opening, the heel of the pressing plate is firstly entered into the upward section of the track, and then into the downward section to move downward; when the pressing plate moves downward, the first type of pressing plate pushes the upper control plate and the upper needle guide plate in the same groove to a lower position, so that the double-headed latch needles in adjacent axial grooves form a staggered arrangement of one high and one low.