A kind of groove needle core self-resetting type warp knitting machine lacking pressure knitting mechanism

Abstract

The present invention relates to a groove needle needle core self-resetting type warp knitting machine lacking pressure knitting mechanism, comprising a jacquard device, a needle core, a needle core groove and a needle body, wherein the needle core vertically penetrates the needle core groove, the needle core driving mechanism is used to drive the needle core to move up and down, so that the needle opening of the needle body is opened or closed, the needle core groove is used to limit and guide the needle core, the jacquard device is arranged on the side of the needle core, the jacquard device is used to press the needle core to deflect when lacking pressure knitting is required, so that the needle core is separated from the needle core driving mechanism, thereby keeping the needle opening of the needle body in an open state, and also used to keep the needle core in the initial position when lacking pressure knitting is not required, so that the needle core can move up to close the needle opening under the drive of the needle core driving mechanism. The present invention introduces a groove needle into a lacking pressure warp knitting machine to replace the traditional hook needle and pattern pressure plate, and through the jacquard device and the separated needle core, independent lacking pressure knitting at each knitting point can be realized, so that warp knitted fabrics of any pattern can be knitted according to needs.

Description

Technical Field

[0001] The invention relates to the field of pressure-deficient fabric knitting equipment, and in particular to a pressure-deficient knitting mechanism of a groove needle core self-resetting warp knitting machine. Background Art

[0002] Traditional warp knitting fabrics with insufficient pressure can only be knitted by using a crochet warp knitting machine with a pattern pressing plate. The knitting pattern is single, and when changing the pattern, the position of the pattern pressing plate needs to be replaced, and the pattern pressing plate needs to be customized according to the pattern, which is inconvenient to use.

[0003] The main innovative research direction of people in the weaving of warp knitting with insufficient pressure is to improve the control technology of the pattern pressing plate: ① The pattern pressing plate has the function of horizontal movement while pressing the needle; ② The pattern pressing plate has the function of intermittent movement to cooperate with the flat pressing plate; ③ Multiple pattern pressing plates have the function of changing control. However, no matter which form of change is adopted, these research directions are inseparable from the pattern pressing plate, and can only control the pattern mechanically, but cannot realize the design of the pattern by electronic single-selection needle.

[0004] At present, in the design and weaving production market of other pattern structures, crochet warp knitting machines have long been eliminated and completely replaced by groove needle warp knitting machines. The only difference is that crochet knitting still has a place in the field of pressure-deficient warp knitted fabrics that require pattern pressure plates to control the knitting. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a groove needle core self-resetting warp knitting machine lack-pressure knitting mechanism in response to the above problems and requirements.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A groove needle needle core self-resetting warp knitting machine with a low-pressure weaving mechanism comprises a jacquard device, a needle core, a needle core groove and a needle body, wherein the needle core vertically penetrates the needle core groove, the needle core driving mechanism is used to drive the needle core to move up and down to open or close the needle opening of the needle body, the needle core groove is used to limit and guide the needle core, the jacquard device is arranged on the side of the needle core, the jacquard device is used to press the needle core to offset when low-pressure weaving is required, so that the needle core is separated from the needle core driving mechanism, thereby keeping the needle opening of the needle body in an open state, and is also used to keep the needle core in an initial position when low-pressure weaving is not required, so that the needle core can move up to close the needle opening under the drive of the needle core driving mechanism.

[0008] Furthermore, a needle core butt is horizontally arranged on one side of the needle core close to the jacquard device. The jacquard device includes a jacquard drive mechanism and a push rod. The jacquard drive mechanism is used to drive the push rod to push the needle core to move in a horizontal direction, so that the needle core is separated from the needle core drive mechanism.

[0009] Furthermore, a clamping block is provided at the upper end of the needle core driving mechanism, and when the needle core is in an initial state, the lower end of the needle core is engaged with a first groove on the side of the clamping block.

[0010] Furthermore, a return spring is arranged between the rear end of the needle core and the needle core groove, and the return spring is used to push the needle core to move to the initial position when the jacquard device releases the pressure on the needle core.

[0011] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0012] The present invention introduces groove needles into the lack-pressure warp knitting machine to replace the traditional hook needles and pattern pressure plates. Through the jacquard device and the separate needle core, the jacquard device drives the needle core to shift or reset, so as to independently control whether the needle mouth at each knitting point is closed, thereby realizing independent lack-pressure knitting at each knitting point. Therefore, warp knitted fabrics of any color can be knitted according to needs, realizing electronic needle selection for lack-pressure warp knitting tissue knitting, and adopting a simple method to make the warp knitting color richer.

[0013] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present application when weaving under pressure;

[0015] Figure 2 It is a schematic diagram of the structure of the present application during normal weaving.

[0016] 1. Needle core; 2. Needle body; 3. Needle core heel; 4. First groove; 5. Jacquard drive mechanism; 6. Push rod; 7. Needle core groove; 8. Block; 9. Return spring DETAILED DESCRIPTION

[0017] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0018] During the loop-forming movement of the groove needle warp knitting machine, whether the needle core rises to close the needle mouth of the needle body and whether the knitting needle pads the new yarn. If the knitting needle does not pad the yarn and the needle core does not close the needle mouth, there is only the old coil in the needle hook, which is woven on the fabric to form an elongated coil, which is the lack-pressure jacquard structure. To achieve the weaving of lack-pressure warp knitted fabrics, two problems must be solved: ① Whether to pad the yarn; ② Whether to close the mouth.

[0019] From the motion curve of the loop-forming parts of the groove-needle warp knitting machine, it can be seen that the normal movement of the needle core is to rise and close the needle mouth. To achieve pressure-deficient knitting without rising or closing the needle core, the following should be done: ① Although the needle core rises, the needle body begins to descend and the needle core descends in advance (descends during the period of 240° to 350° of the main shaft), so that the needle core is always in the needle body and does not close, so that the old coil can return to the needle hook again to achieve pressure-deficient knitting; ② The needle core is always in the needle body and does not rise or close, which is equivalent to the needle core not rising and closing the needle mouth during the period of 100° to 350° of the main shaft, and also enables the old coil to return to the needle hook again to achieve pressure-deficient knitting.

[0020] Therefore, the method adopted by the present invention is to use the device of the present application at each knitting point, configure each needle core 1 with a corresponding jacquard device, and realize independent pressure-deficient knitting for each knitting point. When the knitting point needs pressure-deficient knitting, the jacquard drive mechanism 5 is controlled to use the push rod 6 to press the needle core butt 3 of the needle core horizontally, so that the needle core is offset and separated from the block 8 above the needle core drive mechanism. When the knitting point needs normal knitting, the jacquard drive mechanism is retracted, and the needle core returns to the initial position under the push of the reset spring 9. Through the independent control of each knitting point, it is possible to weave various colors of pressure-deficient fabrics according to needs.

[0021] The groove needle core self-resetting type warp knitting machine pressure-deficient knitting mechanism of the present invention can be installed on the loop forming mechanism of the groove needle warp knitting machine, and other parts such as the sinker and the yarn guide needle are consistent with the traditional groove needle warp knitting machine.

[0022] like Figure 2 As shown, the needle core 1 vertically penetrates the needle core groove 7, and the needle core driving mechanism is used to drive the needle core 1 to move up and down to open or close the needle opening of the needle body 2. When the knitting point does not need to be knitted under pressure, the jacquard driving mechanism remains stationary, and the needle core heel is located in the first groove 4 on the clamping block 8. The needle core moves up under the drive of the needle core driving mechanism to close the needle opening of the needle body 2.

[0023] like Figure 1 As shown, when the knitting point needs to be knitted without pressure, the jacquard drive mechanism uses the push rod to press the needle core horizontally, driving the needle core to deviate from the clamping block, and the corresponding needle core swings out of the control of the needle core drive mechanism and does not rise with the needle core drive mechanism, so that the needle mouth remains normally open, and the old coil is retracted from the needle bar of the needle body into the needle hook again to form lack-pressure knitting.

[0024] When it is necessary to switch to the normal state, the needle core returns to the initial position under the push of the reset spring, the needle core butt is inserted into the first groove on the clamping block, and the needle opening is closed under the drive of the needle core driving mechanism.

[0025] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. A groove needle core self-resetting warp knitting machine lack of pressure knitting mechanism, characterized in that: The jacquard device comprises a needle core (1), a needle core groove (7) and a needle body (2), wherein the needle core (1) vertically penetrates the needle core groove (7), the needle core driving mechanism is used to drive the needle core (1) to move up and down, so that the needle opening of the needle body (2) is opened or closed, the needle core groove (7) is used to limit and guide the needle core (1), the jacquard device is arranged on the side of the needle core (1), the jacquard device is used to press the needle core (1) to deflect when low-pressure knitting is required, so that the needle core (1) is separated from the needle core driving mechanism, thereby keeping the needle opening of the needle body (2) in an open state, and is also used to keep the needle core (1) in an initial position when low-pressure knitting is not required, so that the needle core (1) can be driven by the needle core driving mechanism to move up to close the needle opening; A needle core heel (3) is horizontally arranged on one side of the needle core (1) close to the jacquard device. The jacquard device comprises a jacquard drive mechanism (5) and a push rod (6). The jacquard drive mechanism (5) is used to drive the push rod (6) to push the needle core (1) to move in a horizontal direction, so that the needle core (1) is separated from the needle core drive mechanism. A clamping block (8) is provided at the upper end of the needle core driving mechanism, and when the needle core (1) is in the initial state, the lower end of the needle core (1) is engaged with a first groove (4) on the side of the clamping block (8); A return spring (9) is arranged between the rear end of the needle core (1) and the needle core groove (7), and the return spring (9) is used to push the needle core (1) back to the initial position when the jacquard device releases the pressure on the needle core (1).

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