CN213113740U

CN213113740U - Constant-pressure sinker mechanism not prone to yarn floating

Info

Publication number: CN213113740U
Application number: CN202021372728.4U
Authority: CN
Inventors: 韩徐斌; 钟佳明; 王靖敏; 安勇强; 张锋
Original assignee: Tongxiang Qianglong Machinery Co Ltd
Current assignee: Tongxiang Qianglong Machinery Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-05-04
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a normal pressure type sinker mechanism which is not easy to float, the front end of a needle plate is a tooth mouth end, a row of insert grooves with even intervals are arranged on the needle plate, and a sinker is arranged in each insert groove; the sinker power mechanism is arranged on the needle plate and is used for driving the sinker to rotate downwards to press yarns or rotate upwards to lift and release the pressed yarns; each sinker is provided with a tooth mouth piece, and the front end part of the tooth mouth piece is provided with a yarn limiting notch used for limiting the yarn pressed down by the sinker and preventing the pressed yarn from lifting along with the sinker; the sinker is a split type sinker, and the front end part of the tooth mouth piece is provided with a yarn limiting notch to prevent the pressed yarn from lifting along with the sinker to cause floating yarn; the sinker adopts a split structure, the manufacturing process is relatively simple, the production efficiency is improved, and the production cost is reduced.

Description

Constant-pressure sinker mechanism not prone to yarn floating

Technical Field

The utility model relates to a computerized flat knitting machine technical field, specifically say, relate to a sinker mechanism that is used for difficult float of normal pressure formula of computerized flat knitting machine.

Background

The sinker mechanism in the computerized flat knitting machine is used for pressing down the knitted fabric in knitting to assist the knitting needle to withdraw a loop, sinkers of two needle beds can rotate and open relative to needle bed openings to give way for looping, and closing, sinking, looping and drawing in the knitting process are facilitated. Although current normal pressure formula sinker mechanism can longer time press the yarn for be difficult for producing the floating collar at the knitting in-process, when the sinker lifts up, can have the yarn and take place along with the condition of sinker come-up together. In addition, the sinkers used in the existing sinker mechanism are all made of metal material by integral molding, for example, the sinker disclosed in the patent application with the application number of 2019114156111 is made of metal material by integral molding, and the elastic leg portion of the sinker has a certain elastic deformation capability, so the elastic leg portion is usually designed to be a curved line structure, and the integral sinker has two defects in the using and manufacturing processes: on one hand, the elastic presser foot part needs to be made into a curve shape, so that the whole sinker has low production efficiency and high cost; on the other hand, the elastic deformation capability of the elastic presser foot part is limited by the material selection of the whole sinker.

There is therefore a need for improvements and optimisation of existing sinker mechanisms.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a sinker mechanism of difficult floating yarn of normal pressure formula that structural design is reasonable, simple manufacture, low in production cost.

The utility model provides a technical scheme that above-mentioned problem adopted is: a constant-pressure sinker mechanism not prone to yarn floating comprises sinkers, a needle plate and a sinker power mechanism, wherein the front end of the needle plate is a tooth mouth end, a row of insert grooves are uniformly arranged on the needle plate at intervals, and each insert groove is internally provided with one sinker; the sinker power mechanism is arranged on the needle plate and is used for driving the sinker to rotate downwards to press yarns or rotate upwards to lift and release the pressed yarns; each sinker is provided with a tooth mouth piece, the sinkers and the tooth mouth pieces are combined together and installed at the front end of the inserting piece groove, and the front end part of each tooth mouth piece extends out of the front end of the needle plate; the method is characterized in that: the front end part of the tooth mouth piece is provided with a yarn limiting notch used for limiting the yarn pressed down by the sinker and preventing the pressed yarn from lifting along with the sinker; the sinker is a split sinker and comprises a flaky base body, an elastic presser foot part, a power blade heel part and a yarn pressing part, wherein the power blade heel part and the yarn pressing part are connected to the base body; the power sheet heel part, the yarn pressing part and the base body are integrally formed to form a sinker body, and the elastic leg pressing part and the sinker body are clamped together through a clamping structure to form a split type sinker.

Preferably, the clamping structure comprises a bayonet arranged on the sinker body and a clamping hook arranged at one end of the elastic presser foot part; the hook is assembled in the bayonet.

Preferably, the heel portion of the power blade is formed by extending a part of the top surface of the base upward and rearward to form an inclined cantilever and then extending upward from the inclined cantilever.

Preferably, the bayonet is arranged on the rear side of the heel of the power blade.

Preferably, the yarn pressing part is connected to the front side of the base body, the yarn pressing part is provided with a yarn pressing opening and a limiting notch, the yarn pressing opening is used for pressing the coil downwards, and the limiting notch is used for limiting the excessive forward rotation of the sinker; the yarn pressing opening is positioned in front of the limiting notch, and the openings of the yarn pressing opening and the limiting notch face downwards.

Preferably, the base body is provided with a rotary positioning hole, and the rotary positioning hole is used for installing and positioning a steel wire; the positioning steel wire is connected with the needle plate; the power blade heel part enables the base body to rotate back and forth by taking the positioning steel wire as a rotating shaft under the action of the sinker power mechanism; the elastic presser foot part can generate elastic deformation and is used for providing elastic pressure for the base body, so that continuous pressure is always kept when the yarn pressing part presses yarns.

Preferably, the elastic presser foot part is C-shaped.

Preferably, after the elastic presser foot part and the sinker body are clamped together through the clamping structure, the clamping part of the elastic presser foot part and the sinker body is welded and reinforced.

Preferably, the front end part of the tooth mouth piece is provided with a yarn limiting inclined plane for limiting yarns, and the yarn limiting notch is positioned below the yarn limiting inclined plane; when the needle is hooked with the yarn in the process of moving backwards, the yarn is blocked by the yarn limiting inclined planes of every two adjacent tooth mouth pieces, looping is facilitated, meanwhile, the sinker presses the yarn downwards to the lower portion of the yarn limiting notch of the front end portion of the tooth mouth piece, the sinker is lifted up afterwards, the pressed yarn is blocked by the yarn limiting notch, and the yarn cannot float.

Compared with the prior art, the utility model, have following advantage and effect: the front end part of the tooth opening piece is provided with a yarn limiting notch to prevent the pressed yarn from lifting along with the sinker to cause floating yarn; the sinker adopts a split structure, the split sinker is divided into an elastic presser foot part and a sinker body, the two parts are separately manufactured during manufacturing, and then are assembled together through a clamping structure to form the split sinker, the manufacturing process is relatively simple, the production efficiency is improved, and the production cost is reduced; in addition, the sinker body and the elastic pressure foot part can be made of different materials, and the elastic pressure foot part can be made of wires with good elasticity, so that the reliability and consistency of the elasticity are improved, and the service life is prolonged.

Drawings

In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a sinker in the embodiment of the present invention.

Fig. 3 is a schematic structural view of the sinker body according to the embodiment of the present invention.

Fig. 4 is a schematic structural view of an elastic presser foot part according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a tooth mouth piece in the embodiment of the present invention.

FIG. 6 is a view showing a state where the sinker has pressed the yarn immediately after the needle has hooked the yarn and has not retracted.

FIG. 7 is a view showing the state that the needle is hooked to move backward and the yarn is blocked by the yarn limiting inclined surface at the front end of the tooth mouth piece and the sinker presses down the yarn.

FIG. 8 is a view showing the state where the needle is hooked and the yarn is further withdrawn to form a stitch.

FIG. 9 is a state diagram of the needle cutting hook yarn retreating to the right position, the sinker starts to lift up and no longer presses the yarn, and the yarn gradually floats up to the yarn limiting notch at the front end of the tooth mouth piece.

FIG. 10 shows that the needle is hooked to the yarn and retreats to the right position, the sinker continues to be lifted completely without pressing the yarn, and the yarn limiting notch stops the pressed yarn from continuing to float upwards.

Description of reference numerals: sinker 1, base body 11, elastic presser 12, power blade heel 13, yarn presser 14, rotation positioning hole 111, bayonet 131, hook 121, yarn presser 141, spacing notch 142, needle plate 2, tooth mouth pieces 3, 31, yarn spacing inclined plane 32, and positioning steel wire 4.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

See fig. 1-10.

The embodiment discloses a constant-pressure sinker mechanism not prone to yarn floating, which comprises a sinker 1, a needle plate 2 and a sinker power mechanism, wherein the front end of the needle plate 2 is a tooth mouth end, a row of insert grooves are uniformly arranged on the needle plate 2 at intervals, and one sinker 1 is arranged in each insert groove; each sinker 1 is provided with a notch piece 3, the sinker 1 and the notch piece 3 are combined together and mounted at the front end of the insert groove, and the front end part of the notch piece 3 protrudes from the front end of the needle plate 2. The sinker power mechanism is arranged on the needle plate 2 and used for driving the sinker 1 to rotate downwards to press yarn or rotate upwards to lift and relieve the press yarn, and the sinker power mechanism adopts the prior art.

In the present embodiment, the sinker 1 is a divided sinker, which includes a base body 11 in a sheet shape, an elastic presser foot portion 12, and a power blade heel portion 13 and a presser foot portion 14 connected to the base body 11. The power piece heel part 13, the yarn pressing part 14 and the base body 11 are integrally formed to form a sinker body, and the elastic leg pressing part 12 and the sinker body are clamped together through a clamping structure to form a split type sinker.

In this embodiment, the base 11 is provided with a rotation positioning hole 111, and the rotation positioning hole 111 is used for installing the positioning steel wire 4; the power blade heel part 13 enables the base body 11 to rotate back and forth by taking the positioning steel wire 4 as a rotating shaft under the action of a sinker power mechanism; the elastic presser 12 is elastically deformable to apply elastic pressure to the base 11, and the pressure of the presser 14 is maintained continuously during pressing.

Specifically, in the present embodiment, the engaging structure includes a bayonet 131 provided on the sinker body and a hook 121 provided at one end of the elastic presser foot portion 12. The hook 121 is fitted to the bayonet 131, and the engagement portion between the hook and the bayonet 131 is welded and reinforced.

In this embodiment, the heel portion 13 is formed by extending a portion of the top surface of the base 11 upward and rearward to form an inclined cantilever and then extending upward from the inclined cantilever. The bayonet 131 is specifically provided at the rear side portion of the power blade heel 13.

In this embodiment, the yarn pressing part 14 is connected to the front side of the base body 11, the yarn pressing part 14 is provided with a yarn pressing opening 141 and a limiting notch 142, the yarn pressing opening 141 is used for pressing the coil downwards, and the limiting notch 142 is used for limiting the excessive forward rotation of the sinker; the yarn pressing opening 141 is located in front of the position-restricting notch 142, and both openings face downward.

In this embodiment, the elastic presser 12 is C-shaped, so that it has a certain elastic deformability after being pressed. When the elastic pressing foot part is manufactured, the elastic pressing foot part can be made of wires with good elasticity, so that the reliability and consistency of the elasticity are improved, and the service life is prolonged.

In this embodiment, a yarn limit notch 31 for limiting the yarn pressed down by the sinker 1 and preventing the pressed yarn from lifting along with the sinker 1 is formed at the front end of the tooth notch piece 3; and the front end part of the tooth mouth piece 3 is provided with a yarn limiting inclined plane 32 used for limiting yarns, and the yarn limiting notch 31 is positioned below the yarn limiting inclined plane 32. Referring to fig. 6 to 10, when the needle cutting hooks the yarn to move backwards, the yarn is blocked by the yarn limiting inclined planes 32 of every two adjacent tooth mouth pieces 3, so that looping is facilitated, meanwhile, the sinker 1 presses the yarn downwards to be pressed below the yarn limiting notch 31 at the front end part of the tooth mouth piece 3, then the sinker is lifted, the pressed yarn is blocked by the yarn limiting notch 31, and the pressed yarn cannot float upwards to cause a floating phenomenon.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A constant-pressure sinker mechanism not prone to yarn floating comprises sinkers (1), a needle plate (2) and a sinker power mechanism, wherein the front end of the needle plate (2) is a tooth mouth end, a row of insert grooves uniformly spaced are formed in the needle plate (2), and one sinker (1) is arranged in each insert groove; the sinker power mechanism is arranged on the needle plate (2) and is used for driving the sinker (1) to rotate downwards to press yarns or rotate upwards to lift and release the pressed yarns; each sinker (1) is provided with a tooth mouth piece (3), the sinkers (1) and the tooth mouth pieces (3) are combined together and installed at the front end of the inserting piece groove, and the front end parts of the tooth mouth pieces (3) extend out of the front end of the needle plate (2); the method is characterized in that: the front end part of the tooth mouth piece (3) is provided with a yarn limiting notch (31) for limiting the yarn pressed down by the sinker (1) and preventing the pressed yarn from lifting along with the sinker (1); the sinker (1) is a split sinker and comprises a flaky base body (11), an elastic presser foot part (12), a power blade heel part (13) connected with the base body (11) and a yarn pressing part (14); the power plate heel part (13), the yarn pressing part (14) and the base body (11) are integrally formed to manufacture the sinker body, and the elastic leg pressing part (12) and the sinker body are clamped together through a clamping structure to form a split type sinker.

2. The normal-pressure sinker mechanism not prone to yarn floating according to claim 1, comprising: the clamping structure comprises a bayonet (131) arranged on the sinker body and a clamping hook (121) arranged at one end of the elastic presser foot part (12); the hook (121) is fitted in the bayonet (131).

3. The normal-pressure sinker mechanism not prone to yarn floating according to claim 2, characterized in that: the heel part (13) of the power blade is formed by extending a part of the top surface of the base body (11) upwards and backwards to form an inclined cantilever and then upwards extending the inclined cantilever.

4. The normal-pressure sinker mechanism not prone to yarn floating according to claim 3, comprising: the bayonet (131) is specifically arranged at the rear side part of the power blade heel part (13).

5. The normal-pressure sinker mechanism not prone to yarn floating according to claim 1, comprising: the yarn pressing part (14) is connected to the front side of the base body (11), the yarn pressing part (14) is provided with a yarn pressing opening (141) and a limiting notch (142), the yarn pressing opening (141) is used for pressing a coil downwards, and the limiting notch (142) is used for limiting the sinker from excessively rotating towards the front side; the yarn pressing opening (141) is positioned in front of the limiting notch (142), and both openings of the yarn pressing opening and the limiting notch face downwards.

6. The normal-pressure sinker mechanism not prone to yarn floating according to claim 1, comprising: a rotary positioning hole (111) is formed in the base body (11), and the rotary positioning hole (111) is used for installing the positioning steel wire (4); the positioning steel wire (4) is connected with the needle plate (2); the power blade heel (13) enables the base body (11) to rotate back and forth by taking the positioning steel wire (4) as a rotating shaft under the action of a sinker power mechanism; the elastic presser foot part (12) can generate elastic deformation and is used for providing elastic pressure for the base body (11) so that continuous pressure is kept when the yarn pressing part (14) presses yarn.

7. The normal-pressure sinker mechanism not prone to yarn floating according to claim 1, comprising: the elastic presser foot part (12) is C-shaped.

8. The normal-pressure sinker mechanism not prone to yarn floating according to claim 1, comprising: the elastic presser foot part (12) and the sinker body are clamped together through a clamping structure, and then the clamping part of the elastic presser foot part and the sinker body is welded and reinforced.