Single-sided circular knitting machine

Abstract

The present invention relates to the field of knitting technology, and provides a single-sided circular knitting machine, comprising a needle cylinder, a knitting needle arranged in a needle cylinder insert slot, a sinker and a sinker triangle arranged above the sinker, a second heel protruding upward and cooperating with the sinker triangle is provided at the rear end of the heel, a detachable embedded mouth piece is embedded in the positioning groove of the needle cylinder, a sinker positioning groove cooperating with the sinker nose is provided on the side of the embedded mouth piece facing the sinker nose, a self-tightening spring structure detachably connected to the side of the needle cylinder away from the knitting needle is extended downward at one end of the embedded mouth piece away from the sinker positioning groove, and the rear part of the nose extends backward above the heel to form an elastic shock-absorbing sheet-shaped supporting surface arranged between the sinker triangle and the heel gap. The present invention solves the problems of the existing single-sided circular knitting machine, such as the vibration of the sinker during operation affecting the consistency of the knitting unit coil, inconvenient maintenance, short cleaning cycle, time-consuming cleaning, and high labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of knitting, in particular to a single-sided circular knitting machine. Background Art

[0002] The knitting needles of the knitting machine are controlled by the sinker of the loom at the moment of regular lifting and lowering movement, and the processes of weaving such as unlooping, looping, connecting loops, unlooping, and looping are assisted by the sinker of the loom. Only when the sinker is kept in a stable and regular movement process can the functions of yarn unlooping and unlooping be well realized. The traditional needle cylinder needs to be quenched and heat-treated at the nozzle, which causes deformation. At present, the front side of the fabric of the conventional weft plain weave process is difficult to flatten. On the back side, the shape of the coil size sinker arc is unstable and the consistency is poor when it is knitted into a circle with the knitting needle because the reciprocating motion of the traditional sinker needs to be matched with the triangle gap of the sinker. This is especially obvious when weaving long fibers. When the traditional sinker moves at high speed, friction heat is generated and it cannot be lubricated, resulting in wear of the needle nozzle, which makes the long fiber fabric produce "thick and thin strips" and "white oil needles" and other weaving defects that are difficult to completely overcome. In addition, the reciprocating motion of the sinker and the friction between the fiber are intense, causing damage and rupture, which makes the fabric surface fluffy.

[0003] For example, Chinese patent document CN201320071302.9 discloses a single-sided needle cylinder and sinker structure, in which a cylinder top is added to the upper edge of one side of the single-sided needle cylinder of a circular knitting machine, so that the cylinder top and one side of the single-sided needle cylinder are separated by a positioning ring to form a support groove, the groove top and the groove bottom of the support groove are respectively ground by heat treatment to provide a sinker head for placement as a support, and the upper edge of the cylinder top is directly processed into a closely arranged slot, the slot is a slot with a gap with the nose of the sinker to form a slide groove for guiding the nose to slide; with the help of the above structure, the lower support groove of the utility model is only designed as a fulcrum so that cotton wool will not be generated during operation, and the upper slot is only designed for positioning, leaving a gap to remove cotton wool. If oil is sprayed during operation, straight strips will not be generated, which can reduce the number of times the knitting machine is cleaned. Although this structure avoids the friction between the sinker and the nozzle of the needle cylinder, it turns it into friction between the sinker and the top of the cylinder. Once the top of the cylinder is worn, it needs to be replaced as a whole, which is inconvenient and costly to maintain. At the same time, the gap between the sinker and the cam still exists. Therefore, the movement gap between the sinker and the cam causes the sinker to shake during operation, thereby affecting the knitting accuracy, which cannot be solved. Furthermore, the reciprocating motion of the sinker between the syringe body and the sinker ring makes the space for the sinkers to be arranged in sequence relatively narrow. When weaving short fibers, even if compressed air is blown to the sinker, the flow state changes due to the high-speed operation of the sinker, causing micro-vibration when the machine reaches a normal working speed. The turbulence effect of the sinker structure affects the effect of the compressed air blowing, and it is easy to accumulate flying flowers and debris. Even if the operator intervenes intermittently to manually assist in removing the flocs, the floating flying flowers and debris directly affect the quality of the fabric. Only routine cleaning and clearing work can be carried out before the cloth is put down. Due to the long interval time, the flying flowers and debris have accumulated around the sinker in the weaving area and are difficult to remove. When it accumulates to a certain extent, the quality of the fabric drops sharply, resulting in a short cleaning cycle and time-consuming cleaning, and high labor intensity. Summary of the invention

[0004] Therefore, in response to the above-mentioned problems, the present invention proposes a single-sided knitting circular machine, which makes the fabric unit coils of the single-sided knitting circular machine have high consistency, its sinker runs smoothly, stably and accurately, the machine is easy to maintain and use, the maintenance cost is low, the cycle requiring cleaning is extended and the working time required for cleaning is shortened.

[0005] To solve this technical problem, the present invention adopts the following scheme: a single-sided knitting circular machine, comprising a needle cylinder, a knitting needle arranged in the needle cylinder insert slot, a sinker and a sinker triangle arranged above the sinker, the sinker comprising a heel and a nose arranged at the front end of the heel, the rear end of the heel is provided with a second heel that protrudes upward and cooperates with the sinker triangle, a detachable embedded nozzle piece is embedded in the positioning groove of the needle cylinder, a surface of the embedded nozzle piece facing the sinker nose is provided with a sinker positioning groove that cooperates with the sinker nose, the embedded nozzle piece extends downward at one end away from the sinker positioning groove and is provided with a self-tightening spring structure that is detachably connected to a side of the needle cylinder away from the knitting needle, the rear part of the nose extends backward above the heel to form an elastic shock-absorbing sheet-like supporting surface arranged between the gap between the sinker triangle and the heel, and the elastic shock-absorbing sheet-like supporting surface maintains adaptive pre-tightening sliding contact with the sinker triangle during movement.

[0006] Furthermore, the needle cylinder is provided with a groove sunken toward the knitting needle on one side away from the knitting needle, the self-tightening spring structure of the embedded nozzle piece is a diagonal spring and the lower end of the diagonal spring can be detachably buckled in the groove of the needle cylinder.

[0007] Furthermore, a through hole is provided on one end of the embedded nozzle piece where the sinker positioning groove is provided.

[0008] Furthermore, an arc-shaped wear-resistant ring is provided on the positioning groove of the syringe, which is located below one side of the sinker positioning groove provided on the embedded nozzle piece.

[0009] Furthermore, an oil-breaking groove is provided on the positioning groove of the syringe below the arc-shaped wear-resistant ring.

[0010] Furthermore, the elastic shock-absorbing sheet-shaped supporting surface extending from the rear of the sheet nose is inclined and gradually rises from the initial end to the free end.

[0011] Furthermore, the rear part of the elastic shock-absorbing sheet-shaped supporting surface extending from the rear part of the sheet nose is also provided with an upwardly protruding sheet heel.

[0012] Furthermore, the rear part of the elastic shock-absorbing sheet-like supporting surface extending from the rear part of the sheet nose is located at the bottom of the raised sheet heel and is also provided with an upwardly concave arc portion.

[0013] By adopting the aforementioned technical scheme, the beneficial effect of the present invention is as follows: by arranging an embedded nozzle piece on the positioning groove of the syringe to cooperate with the sinker nose, the sinker positioning groove of the embedded nozzle piece can ensure the accurate positioning of the sinker and play a supporting role, and the embedded nozzle piece is arranged with the detachable connection structure of the syringe through a multi-turn self-tightening spring structure, which is convenient for single and quick replacement when a certain embedded nozzle piece is worn, and the maintenance is convenient and the maintenance cost is low. The elastic shock-absorbing sheet-like supporting surface extending from the rear of the plate nose transforms the overall structure of the sinker into a stage-type elastic sinker, so that the sinker has good mechanical properties, elastic support and positioning functions, and the contact surface between the stage-type elastic sinker and the sinker triangle has large tensile stiffness and bending stiffness. The elastic shock-absorbing sheet-like supporting surface maintains adaptive pre-tightening sliding contact with the sinker triangle during movement, so that the elastic shock-absorbing sheet-like supporting surface is always in contact with the sinker triangle during movement to keep the sinker in a relatively stable parallel state. The elastic shock-absorbing sheet-like supporting surface can play the function of an adaptive pre-tightening structure, thereby effectively eliminating the up and down movement of the sinker triangle and the sinker during reciprocating motion, and reducing the problem of aggravated wear caused by the sinker heel tilting a certain angle and point contact with the sinker triangle track due to the upward push of the yarn woven into a loop due to the reciprocating motion of the sinker and the gap between the sinker triangle. The problem of affecting the smooth operation of the interference, thereby extending the service life of the sinker and making the sinker arc of the fabric more consistent. The staged elastic sinker of the present invention has good buffering and shock absorption capabilities. Due to the surface friction damping effect, the effect of absorbing impact and dissipating energy is more significant, which effectively solves the problem of running jitter between the existing sinker and the sinker triangle, so that the unit coil consistency of the single-sided knitted circular weft machine fabric is high, and the sinker runs smoothly, stably and accurately. The new structure of the sinker cooperates with the embedded nozzle piece when weaving short fiber yarn, and the compressed air can directly reach the area where flying flowers and debris are easily accumulated, and will not be affected by the turbulence effect, so that the cleaning work is greatly extended, and the cleaning cycle is effectively extended. The multi-turn detour self-tightening spring structure of the embedded nozzle piece is a diagonal spring, and the lower end of the diagonal spring can be detachably buckled in the groove of the syringe, that is, the diagonal positioning buckle is embedded in the clamping syringe groove. The method is accurate and reliable and has the same structure. When a certain embedded nozzle piece is worn and needs to be replaced, the bottom of the multi-turn detour self-tightening spring structure can be quickly and conveniently pushed up to remove it, and the quarterly or annual cleaning maintenance of the machine does not need to be disassembled. A through hole is provided on one end of the sinker positioning groove of the embedded nozzle piece, which increases the relative position of the knitting needle string loop and the embedded nozzle piece, increases the volume of the through hole structure, and increases the distance between the sinker and the knitting needle when the loop is removed, so that the extrusion and friction force on the yarn are relatively reduced, which can effectively reduce the frequency of weaving defects, holes and long missed needles, indirectly reduce the deformation and breakage of the knitting needles, and improve the yield of the fabric.An arc-shaped wear-resistant ring is provided on the positioning groove of the needle cylinder, which is located below one side of the positioning groove of the sinker provided on the embedded nozzle piece, such as zirconia ceramic or ground high-hardness spring steel wire, to ensure that the back of the needle in the knitting movement of the knitting needle is in contact with the support of the arc-shaped wear-resistant ring without affecting the durability of the steel needle cylinder. The deformation of the nozzle of the syringe during heat treatment is an unavoidable property problem. After heat treatment, the nozzle end face usually produces irregular wavy deformation radially inside and outside the contact surface with the traditional sinker and knitting needle assembly. Thanks to the fact that the embedded nozzle piece does not require reciprocating motion, the arc-shaped wear-resistant ring is used to prevent wear on the stress points of the knitting needle and the nozzle of the syringe, thereby changing the syringe production process without the need for heat treatment, avoiding the industry problem of poor dimensional accuracy caused by deformation of the nozzle of the syringe after heat treatment, thereby ensuring the prerequisite for consistency in the length of the fabric unit coil. The positioning groove of the needle cylinder is provided with an oil-breaking groove below the arc-shaped wear-resistant ring. The needle head of the knitting needle is thrown toward the outer diameter direction under the action of centrifugal force due to the separation of the oil-breaking groove and the knitting oil lubrication of the moving sinker, making it difficult for the knitting oil to be transmitted to the looping part of the knitting needle, effectively solving the problem of knitting oil contaminating the fabric when knitting into a loop, thereby solving the problem of "white oil needle". The extension line of the coil is formed in the embedded mouth piece. When the knitting needle forms a loop, the yarn does not have continuous contact and friction with the moving sinker, and only serves to assist in unwinding, making the extension line of the unit coil more uniform and more consistent. The elastic shock-absorbing sheet-like supporting surface extending from the rear of the plate nose is inclined upward to further enhance the adaptive pre-tightening force, and strengthen its ability to eliminate the vibration force generated by the up and down movement of the sinker triangle and the sinker during reciprocating motion. The rear of the elastic shock-absorbing sheet-like supporting surface extending from the rear of the plate nose is also provided with an upwardly protruding heel, which can further enhance the positioning of the elastic shock-absorbing sheet-like supporting surface and the adaptive elimination of the up and down movement of the sinker triangle and the sinker during reciprocating motion. The elastic shock-absorbing sheet-like supporting surface always maintains adaptive pre-tightening sliding contact with the sinker triangle during movement to keep the sinker in a relatively stable parallel state; the arc-shaped portion at the rear of the elastic shock-absorbing sheet-like supporting surface at the bottom of the protruding heel can further enhance the elimination of the up and down movement of the sinker triangle and the sinker during reciprocating motion, ensure the smooth operation of the sinker, and can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial structural schematic diagram of an embodiment of the present invention;

[0015] Figure 2 is a partial structural schematic diagram of another state of an embodiment of the present invention;

[0016] Figure 3 2 is a schematic diagram of the structure of a sinker in an embodiment of the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of the embedded mouth piece in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0019] refer to Figure 1-Figure 4 The preferred single-sided knitting circular machine of the present invention comprises a needle cylinder 1, a knitting needle 2 arranged in the insert slot of the needle cylinder 1, a sinker 3 and a sinker triangle 4 arranged above the sinker 3, the sinker 3 comprising a butt 31 and a nose 32 arranged at the front end of the butt 31, the rear end of the butt 31 is provided with a second butt 311 protruding upward and cooperating with the sinker triangle, a detachable embedded nozzle piece 5 is embedded in the positioning groove 12 of the needle cylinder 1, a sinker positioning groove cooperating with the nose 32 of the sinker 3 is provided on the side of the embedded nozzle piece 5 facing the nose 32 of the sinker 3, the end of the embedded nozzle piece 5 away from the sinker positioning groove extends downward and is provided with a self-tightening spring structure 51 which is detachably connected to the side of the needle cylinder 1 away from the knitting needle 2, the side of the needle cylinder 1 away from the knitting needle 2 is provided with a groove recessed towards the side of the knitting needle 2, the self-tightening spring structure 51 of the embedded nozzle piece 5 is a diagonal spring and the diagonal spring bottom The end can be detachably buckled in the groove of the positioning groove 12 of the syringe 1, and a through hole 52 is provided on one end of the embedded nozzle piece 5 where the sinker positioning groove is set. An arc-shaped wear-resistant ring 6 is provided on the positioning groove 12 of the syringe 1, and an oil-breaking groove 11 is provided on the positioning groove 12 of the syringe 1, and the positioning groove 12 is located below the arc-shaped wear-resistant ring 6. The rear part of the sheet nose 32 extends backward above the sheet heel 31 to form an elastic shock-absorbing sheet support surface 33 arranged between the gap between the sinker triangle 4 and the sheet heel 31. The rear part of the elastic shock-absorbing sheet support surface 33 extending from the rear part of the sheet nose 32 is also provided with an upwardly protruding sheet heel 331. The rear part of the elastic shock-absorbing sheet support surface 33 extending from the rear part of the sheet nose 32 is located at the bottom of the protruding sheet heel 331 and is also provided with an upwardly concave arc-shaped portion 332. The elastic shock-absorbing sheet support surface 33 maintains adaptive pre-tightening sliding contact with the sinker triangle 4 when moving.

[0020] In the above-mentioned embodiment, the elastic shock-absorbing sheet-like supporting surface extending from the rear of the nose can also be arranged to gradually rise and tilt from the initial end of the extension to the free end, which can enhance the force of adaptively eliminating the up and down movement of the sinker triangle and the sinker during reciprocating motion. The arc-shaped portion at the rear of the elastic shock-absorbing sheet-like supporting surface extending from the rear of the nose and located at the bottom of the raised sheet heel can be omitted when the sinker can run smoothly. The setting is to further ensure that the force of adaptively eliminating the up and down movement of the sinker triangle and the sinker during reciprocating motion can be eliminated.

[0021] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A single-sided circular knitting machine, comprising a needle cylinder, a knitting needle arranged in a needle cylinder insert slot, a sinker and a sinker triangle arranged above the sinker, the sinker comprising a butt and a nose arranged at the front end of the butt, the rear end of the butt is provided with a second butt protruding upward and cooperating with the sinker triangle, characterized in that: A detachable embedded nozzle piece is embedded in the positioning groove of the needle cylinder, and a sinker positioning groove cooperating with the sinker nose is provided on the side of the embedded nozzle piece facing the sinker nose. The end of the embedded nozzle piece away from the sinker positioning groove extends downward and is provided with a self-tightening spring structure detachably connected to the side of the needle cylinder away from the knitting needle. The rear part of the nose extends backward above the heel to form an elastic shock-absorbing sheet-like supporting surface provided between the gap between the sinker triangle and the heel. The elastic shock-absorbing sheet-like supporting surface maintains adaptive pre-tightened sliding contact with the sinker triangle when moving.

2. The single-sided circular knitting machine according to claim 1, characterized in that: The needle cylinder is provided with a groove which is sunken toward the knitting needle on one side away from the knitting needle. The self-tightening spring structure of the embedded nozzle piece is a diagonal spring and the lower end of the diagonal spring is detachably buckled in the groove of the needle cylinder.

3. The single-sided circular knitting machine according to claim 1 or 2, characterized in that: A through hole is provided on one end of the embedded nozzle piece where the sinker positioning groove is arranged.

4. The single-sided circular knitting machine according to claim 1, characterized in that: An arc-shaped wear-resistant ring is provided on the positioning groove of the needle cylinder and below one side of the sinker positioning groove of the embedded nozzle plate.

5. The single-sided circular knitting machine according to claim 4, characterized in that: An oil-breaking groove is provided on the positioning groove of the needle cylinder below the arc-shaped wear-resistant ring.

6. The single-sided circular knitting machine according to claim 1, characterized in that: The elastic shock-absorbing sheet-shaped supporting surface extending from the rear of the sheet nose is inclined and gradually rises from the extending initial end to the free end.

7. The single-sided circular knitting machine according to claim 1 or 6, characterized in that: The rear part of the elastic shock-absorbing sheet-shaped supporting surface extending from the rear part of the sheet nose is also provided with an upwardly protruding sheet heel.

8. The single-sided circular knitting machine according to claim 7, characterized in that: The rear part of the elastic shock-absorbing sheet-shaped supporting surface extending from the rear part of the sheet nose is located at the bottom of the raised sheet heel and is also provided with an upwardly concave arc portion.

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