Transfer needle and sock machine with transfer needle

Abstract

This invention discloses a transfer needle and a sock knitting machine incorporating the transfer needle. The transfer needle is formed by bending a single two-dimensional sheet. The sheet bends to one side at the upper part of the needle shank to form a clamping portion, and then continues upward and to the other side to form a sharp needle tip. The aforementioned transfer needle is disposed in one needle slot of the sock knitting machine; two adjacent needle slots each contain a knitting needle, the shank of which passes through the clamping portion of the transfer needle, and the other knitting needle is close to the tip of the transfer needle. The transfer needle of this invention has a simple structure and is easy to manufacture, requiring only a specific shaped stamped part to bend. It can transfer loops from one needle to another with stable and reliable operation.

Description

Technical Field

[0001] The invention belongs to the technical field of knitting machinery, in particular to a sock machine, and more specifically to a transfer needle used in the sock machine, and a sock machine with the transfer needle. Background Art

[0002] The sock machine includes a needle cylinder, and the outer surface of the needle cylinder has a plurality of longitudinal needle grooves. The needle grooves are provided with knitting needles, which move up and down in the needle grooves and participate in or not participate in knitting. Through the cooperation between the knitting needles and the yarn, the yarn forms a coil and finally forms a complete sock. During the knitting process, sometimes a specific coil needs to be transferred from one knitting needle to another, and this action is called transfer.

[0003] The prior art closest to the present invention is disclosed in Chinese patent CN101939475A and its prior art WO2007 / 057041A1. In the prior art, the transfer needle includes a needle bar with two symmetrical elastic sheets on the needle bar. The elastic sheets can be opened or contracted relative to the needle bar, so that the needle head of the knitting needle can be placed in the space between the elastic sheets and the needle bar, so as to realize the transfer of the coil between the knitting needle and the transfer needle. This technical solution has two disadvantages. First, the processing difficulty of the elastic sheets is relatively large, and second, one transfer needle must have two elastic sheets. Although it is defined as "at least one" elastic sheet, in fact, if you want to transfer the coil from the first knitting needle to the second knitting needle, you must arrange the two knitting needles on the left and right sides of the transfer needle. First, transfer the coil from the first knitting needle to the transfer needle, and then transfer it to the second knitting needle. Therefore, there must be elastic sheets on both sides of the transfer needle. If the coil itself is formed on the transfer needle, it is equivalent to using the transfer needle as a knitting needle. Its elastic sheet will inevitably occupy the space of the syringe and affect the arrangement of other knitting needles, which is logically invalid. Summary of the invention

[0004] The purpose of the present invention is to provide a transfer needle and a sock machine with the transfer needle, which can better realize the transfer of stitches on the sock machine.

[0005] The present invention adopts the following technical solution: the transfer needle comprises a needle bar, and the transfer needle is formed by and only by bending a one- or two-dimensional sheet-like body; the sheet-like body is bent toward one side at the upper part of the needle bar to form a clamping portion for clamping the adjacent knitting needles on that side therein; and then continues to extend upward and toward the other side to form a needle tip portion with a sharp end.

[0006] Furthermore, the needle tip portion extends beyond the needle rod to reach the other side opposite to the clamping portion.

[0007] The needle tip also extends backwards at the same time.

[0008] The present invention uses the posture of the transfer needle installed on the syringe as the coordinate system, the direction toward the syringe axis is the back, and the direction away from the syringe axis, that is, toward the observer is the front; from the observer's perspective, the left and right sides are one side and the other side; as for up, down or high, low, they are also defined from the observer's perspective.

[0009] The so-called sandwiching part is a semi-enclosed space with three surfaces formed on its vertical cross section for the knitting needle to move up and down therein. Thus, both the left and right sides of the knitting needle are surrounded by the sandwiching part.

[0010] There are actually two situations in the present invention. One is that the clamping portion is formed on the left side and the needle tip portion extends to the right side, and the other is that the clamping portion is formed on the right side and the needle tip portion extends to the left side. The two are mirror images of each other and are both within the protection scope of the present invention.

[0011] The present invention also adopts such a technical solution: a sock machine with a transfer needle comprises a needle cylinder, the outer surface of which has a plurality of longitudinal needle grooves, one of which is provided with the aforementioned transfer needle; two adjacent left and right needle grooves are each provided with a knitting needle, the needle shaft of one of the knitting needles passes through the clamping portion of the transfer needle, and the other knitting needle is close to the end of the needle tip portion of the transfer needle.

[0012] The knitting needle close to the end of the needle tip of the transfer needle has a recessed portion on the needle rod on the side facing the transfer needle, and the position of the recessed portion is lower than the position of the knitting needle tongue when it is opened; when the knitting needle and the transfer needle move relative to each other, the end of the needle tip of the transfer needle cooperates with the recessed portion.

[0013] Furthermore, both surfaces of the needle bars of the two knitting needles are provided with recessed portions, and the position of the recessed portions is lower than the position of the needle tongue of the knitting needle when it is opened; when the knitting needle and the transfer needle move relative to each other, the end of the needle tip of the transfer needle cooperates with one of the recessed portions.

[0014] In the present invention, the tip of the transfer needle extends in the left-right direction, becoming a bridge between the left and right knitting needles. For the knitting needle that is sandwiched, it is completely within the coverage of the tip of the transfer needle. Specifically, the trajectory of the up-and-down movement of the transfer needle relative to the knitting needle forms a tube with one side open, covering the knitting needle; for the knitting needle on the other side, it is close to the end of the tip of the transfer needle, and can make contact during movement, so that the transfer can be achieved. The specific transfer process is as follows:

[0015] The knitting needle close to the tip of the transfer needle is called knitting needle a, and the knitting needle passing through the clamping part of the transfer needle is called knitting needle b. In the initial state, the coil is at the hook of knitting needle a. As knitting needle a rises, the coil opens the needle tongue, and the coil is at the lower part of the needle bar of knitting needle a below the needle tongue; then the transfer needle rises relative to knitting needle a, because the end of its needle tip is close to the needle bar of knitting needle a, especially when passing through the concave part of its needle bar, the coil can be scraped to the tip of the transfer needle; that is, the first transfer is completed at this time, and the coil is transferred from knitting needle a to the transfer needle.

[0016] Then needle b moves upward relative to the transfer needle, and when it touches the coil on the transfer needle, the coil opens the needle tongue of needle b, and the needle bar of needle b is also in the coil; then the transfer needle moves upward relative to needle b, brings the coil to the needle hook of needle b and closes the needle tongue of needle b at the same time; finally, the transfer needle moves downward relative to needle b and leaves the coil, and the coil remains on needle b. The action described in this paragraph depends on needle b being wrapped in the clamping part of the transfer needle, so when the clamping part moves relative to needle b, it can ensure that the coil is transferred from the transfer needle to needle b.

[0017] It can be seen that through the above actions, the coil is successfully transferred from the knitting needle a to the knitting needle b, completing the coil transfer operation.

[0018] It should be pointed out that the above operation can only transfer the coil from needle a to needle b. If the reverse operation is required, when transferring the coil from needle b to coil a, the transfer needle needs to be replaced, and a transfer needle in another direction is used, so that needle a becomes the sandwiched needle, and the tip of the transfer needle points to needle b. The aforementioned additional technical feature, that both surfaces of the two needles have recessed portions, is designed for this purpose. At this time, there is no need to replace the needles, and only the transfer needle can be replaced to switch the transfer direction. In actual production, once the pattern of the socks is determined and the knitting action is designed, it is determined that a certain needle needs to be moved to the left or right during the production process, and there is no need to switch during the knitting process; the transfer needle can only be replaced when a batch of production is completed and the pattern software and knitting parameters are re-entered. Therefore, the replacement of the transfer needle is not frequent and is completely within an acceptable range.

[0019] The beneficial effects of the present invention are: the coil transfer needle has a simple structure and is easy to process, and can be obtained by bending a stamping part of a specific shape, and can transfer the coil from a knitting needle on one side to a knitting needle on the other side, and the action is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the transfer needle.

[0021] Figure 2 This is the right side view of the transfer needle.

[0022] Figure 3Schematic diagram of a syringe with a transfer needle installed.

[0023] Figures 4 to 7 This is a schematic diagram showing the coordination of several transfer needles and knitting needles.

[0024] The reference numerals are as follows: 00-coil; 1-transfer needle; 11-transfer needle bar; 12-transfer needle clamping part; 13-transfer needle tip; 14-transfer needle clock; 2-needle cylinder; a\b-knitting needle; a1\b1-needle hook; a2\b2-recess; a3\b3 needle clock. DETAILED DESCRIPTION

[0025] See also Figure 1 , Figure 2 . The transfer needle of this embodiment is a sheet-like body that is bent and twisted, and its main part is the needle bar 11. The side view shows the width of the needle bar, and the front view shows the thickness of the needle bar. The lower part of the needle bar is provided with a needle clock 14, and the driving component drives the transfer needle to move up and down by cooperating with the needle clock 14. This is a prior art and is not described in detail. From the front view, the upper part of the needle bar is bent to the right to form a clamping part 12; then the aforementioned sheet-like body extends upward and gradually becomes thinner to form a needle tip part 13. As can be seen from the front view, the needle tip part 13 extends to the right, and its end exceeds the needle bar 11 and reaches the left side of the needle bar; as can be seen from the right view, the needle tip 13 extends backward at the same time; it can be imagined that the needle tip part 13 is an oblique curve when viewed from a top view.

[0026] See also Figure 3 The outer surface of the needle cylinder 2 has a plurality of longitudinal needle grooves, and the transfer needle 1 is inserted into one of the needle grooves in the direction shown in the front view, the needle groove adjacent to the left side thereof is the knitting needle a, and the needle groove adjacent to the right side thereof is the knitting needle b, and the transfer needle 1, the knitting needle a, and the knitting needle b are all driven up and down by a driving mechanism through their respective needle clocks.

[0027] See also Figures 4 to 7 . Figure 4 In the figure, the coil 00 is hung on the knitting needle a. As the knitting needle a moves upward, the coil opens the needle tongue of the knitting needle a and is in a lower position. Figure 5 In the figure, the transfer needle has moved upward relative to needle a (in fact, needle b also moves upward with the transfer needle, but it has no practical significance). It can be seen that the end of its needle tip 13 is close to the concave portion a2 of needle a, so that the needle tip 13 drills into the coil. The transfer needle continues to move upward. Figure 6 The middle transfer needle is higher than the knitting needle a and the knitting needle b, and the coil is hung on its needle tip 13. Then the knitting needle b moves upward relative to the transfer needle, enters the coil, and its needle tongue is also opened, that is, Figure 7 The transfer needle then moves upward relative to needle b, closing the needle tongue of needle b with its needle tip, leaving the coil in the hook of needle b. Finally, the transfer needle moves downward and leaves, thus completing the transfer of the coil from needle a to needle b.

Claims

1. A transfer needle, comprising a needle bar, characterized in that: The transfer needle is formed by bending a one-dimensional sheet-like body and only by bending the sheet-like body; the sheet-like body is bent toward one side at the upper part of the needle bar to form a clamping part, which is used to clamp the adjacent knitting needles on the side therein; Then it continues to extend upward and to the other side to form a needle tip with a sharp end; the clamping part forms a semi-enclosed space with three surfaces on its vertical cross section for the knitting needle to move up and down therein; the needle tip extends beyond the needle rod to reach the other side opposite to the clamping part.

2. The transfer needle according to claim 1, characterized in that: The needle tip also extends backwards at the same time.

3. A hosiery machine with a transfer needle, comprising a needle cylinder, the outer surface of which has a plurality of longitudinal needle grooves, characterized in that: A transfer needle as claimed in claim 1 or 2 is arranged in one of the needle grooves; a knitting needle is arranged in each of the two adjacent left and right needle grooves, the needle bar of one of the knitting needles passes through the clamping part of the transfer needle, and the other knitting needle is close to the end of the needle tip of the transfer needle.

4. The sock machine with a transfer needle according to claim 3, characterized in that: The knitting needle close to the end of the needle tip of the transfer needle has a recessed portion on the needle rod on the side facing the transfer needle, and the position of the recessed portion is lower than the position of the knitting needle tongue when it is opened; when the knitting needle and the transfer needle move relative to each other, the end of the needle tip of the transfer needle cooperates with the recessed portion.

5. The sock machine with a transfer needle according to claim 3, characterized in that: The two surfaces of the needle rod of the knitting needle in the left and right needle grooves are provided with recessed parts, and the position of the recessed parts is lower than the position of the knitting needle tongue when it is opened; when the knitting needle and the transfer needle move relative to each other, the end of the needle tip of the transfer needle cooperates with one of the recessed parts.

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