阅读说明：本技术 横机用沉降片及沉降片机构 (Sinker for flat knitting machine and sinker mechanism ) 是由 钟佳明 韩徐斌 王靖敏 安勇强 张锋 于 2020-05-14 设计创作，主要内容包括：本发明涉及一种横机用沉降片及沉降片机构,横机用沉降片的弹性压脚部是由倾斜悬臂与竖向片踵连接处的一部分后壁面先向下前方延伸再向后上方延伸形成一C型弹性臂而成；弹性压脚部能产生弹性形变,用于向本体提供弹性压力,使压纱部压纱时一直保持有持续的压力。沉降片机构包括针板、沉降片座、信克组件以及上述的沉降片；信克组件安装在沉降片座的上方,机头左右移动带动编织三角底板和信克组件同步左右移动；信克组件包括连接座、信克母板、信克导块、左信克三角、右信克三角和中间信克三角；其中左信克三角和右信克三角固定安装,中间信克三角活动安装。本沉降片机构使织物更加平整,可编织更多花形,如填纱等等。(The invention relates to a sinker and a sinker mechanism for a flat knitting machine, wherein an elastic presser foot part of the sinker for the flat knitting machine is formed by extending a part of a rear wall surface at the joint of an inclined cantilever and a vertical butt downwards and forwards and then backwards and upwards to form a C-shaped elastic arm; the elastic presser foot part can generate elastic deformation and is used for providing elastic pressure for the body, so that continuous pressure is always kept when the yarn pressing part presses yarns. The sinker mechanism comprises a needle plate, a sinker seat, a sinker component and the sinker; the sinker component is arranged above the sinker seat, and the machine head moves left and right to drive the knitting triangular bottom plate and the sinker component to move left and right synchronously; the letter-gram assembly comprises a connecting seat, a letter-gram mother board, a letter-gram guide block, a left letter-gram triangle, a right letter-gram triangle and a middle letter-gram triangle; wherein the left sinker triangle and the right sinker triangle are fixedly arranged, and the middle sinker triangle is movably arranged. The sinker mechanism enables the fabric to be smoother and can weave more patterns, such as yarn filling and the like.)

1. A sinker for a flat knitting machine comprises a flaky body (11), and a power blade heel part (13) and a yarn pressing part (14) which are connected with the body (11); a rotary positioning hole (111) is formed in the body (11), and a first positioning steel wire (5) is mounted in the rotary positioning hole (111); the yarn pressing part (14) is connected to the front side of the 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 method is characterized in that: the electric shoe sole is characterized by further comprising an elastic foot pressing part (12), the power blade heel part (13) is connected to the top side of the body (11), the power blade heel part (13) is formed by extending a part of the top surface of the body (11) upwards to the rear to form an inclined cantilever (131), and then the inclined cantilever (131) extends upwards to form a section of vertical blade heel (132); the elastic foot pressing part (12) is C-shaped and is connected with the power blade heel part (13), and the elastic foot pressing part (12) is formed by extending a part of the rear wall surface of the joint of the inclined cantilever (131) and the vertical blade heel (132) downwards and forwards and then backwards and upwards to form a C-shaped elastic arm; the power blade heel part (13) enables the body (11) to rotate back and forth by taking the first positioning steel wire (5) as a rotating shaft under the action of power; the elastic presser foot part (12) can generate elastic deformation and is used for providing elastic pressure for the body (11) so that continuous pressure is always kept when the yarn pressing part (14) presses yarns.

2. The sinker for a flat knitting machine according to claim 1, characterized in that: the body (11), the elastic presser foot part (12), the power blade heel part (13) and the yarn pressing part (14) are integrally formed by metal materials.

3. The sinker for a flat knitting machine according to claim 1, characterized in that: the yarn pressing opening (141) is positioned in front of the limiting notch (142), and the openings of the yarn pressing opening and the limiting notch are downward.

4. A sinker mechanism comprises a needle plate (2) and a sinker seat (3), wherein the front end of the needle plate (2) is a tooth mouth end, a row of insert slots with uniform intervals are arranged on the needle plate (2), and the sinker seat (3) is arranged above the needle plate (2); the method is characterized in that: further comprising a sinker assembly (4) and a sinker (1) according to any one of claims 1 to 3,

the sinker component (4) is arranged above the sinker seat (3), the sinker component (4) is connected with a knitting triangle bottom plate of the computerized flat knitting machine, the knitting triangle bottom plate is connected with a machine head, and the machine head moves left and right to drive the knitting triangle bottom plate and the sinker component (4) to move left and right synchronously;

a row of sinker guide grooves (31) are formed in the sinker seat (3), and the sinker guide grooves (31) and the inserting grooves are arranged in a one-to-one up-down correspondence manner; the first positioning steel wire (5) is connected with the needle plate (2), the sinker body (11) is installed at the front end of the insert groove through the first positioning steel wire (5), the yarn pressing part (14) is exposed out of the front end of the insert groove, the upper parts of the elastic foot pressing part (12) and the power blade heel part (13) extend into a sinker guide groove (31) on the sinker seat (3) corresponding to the insert groove, the end part of the elastic foot pressing part (12) abuts against the rear side wall surface of the sinker guide groove (31), and the top end part of the power blade heel part (13) is exposed out of the top part of the sinker guide groove (31) and then is acted by the sinker guide block (4);

the power blade heel part (13) enables the sinker body (11) to rotate back and forth by taking the first positioning steel wire (5) as a rotating shaft under the action of the sinker assembly (4); the elastic presser foot part (12) can generate elastic deformation and is used for providing elastic pressure for the sinker body (11) so that continuous pressure is always kept when the yarn pressing part (14) presses yarn;

the sinker assembly (4) comprises a connecting seat (41), a sinker mother board (42), a sinker guide block (43), a left sinker triangle (44), a right sinker triangle (45) and a middle sinker triangle (46); the top surface of the letter gram mother board (42) is connected with the connecting seat (41), the bottom surface of the letter gram mother board (42) is connected with the letter gram guide block (43), and the connecting seat (41) is connected with the weaving triangular bottom plate; the left sinker cam (44), the middle sinker cam (46) and the right sinker cam (45) are sequentially arranged on the sinker guide block (43) from left to right, wherein the left sinker cam (44) and the right sinker cam (45) are fixedly arranged, a sliding groove (432) is formed in the section of the sinker guide block (43) between the left sinker cam (44) and the right sinker cam (45), the middle sinker cam (46) is connected with a sliding block (461), the sliding block (461) can be arranged in the sliding groove (432) in a left-right sliding mode, a sinker needle channel (431) is arranged on the sinker guide block (43), the left sinker cam (44), the middle sinker cam (46) and the right sinker cam (45) are arranged on one side of the sinker needle channel (431), and a power piece heel (13) of the sinker (1) extends into the sinker needle channel (431) and is received by the left sinker cam (44), The middle sinker cam (46) and the right sinker cam (45) push against each other to enable the sinker (1) to rotate forwards to press yarns or rotate backwards to release the pressing yarns;

in the process that the sinker assembly (4) moves left and right, the middle sinker cam (46) moves along the sliding groove (432) under the resistance of the sinker (1) until the middle sinker cam (46) abuts against the left sinker cam (44) or the right sinker cam (45), and the middle sinker cam (46) pushes against the power pad heel part (13) of the sinker (1).

Technical Field

The invention relates to the field of computerized flat knitting machines, in particular to a sinker for a flat knitting machine and a sinker mechanism.

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. The sinker mechanism mainly comprises two parts, namely a sinker and a sinker assembly, wherein the sinker is used for pressing down the yarn or lifting and releasing the yarn by utilizing the sinker assembly to drive the sinker.

In actual production, the existing sedimentation sheet mechanism has the following defects: (1) the sinker has the defect of poor elasticity due to unreasonable structural design, and the elastic presser foot part is easy to break and short in service life; (2) the movement of the cam in the existing signal-gram assembly is driven by a motor, for example, the patent with publication number CN 209456658U: a sinker adjustable mechanism is characterized in that a sinker cam is driven by a motor, and a sinker component driven by the motor is not timely in motion fit with a bottom plate of a knitting cam, so that yarns are pressed down to delay or loosen prematurely, and the knitting quality of a fabric is affected.

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

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a sinker for a flat knitting machine with reasonable structural design and good elasticity and a sinker mechanism with the sinker.

The technical scheme adopted by the invention for solving the problems is as follows: a sinker for a flat knitting machine comprises a flaky body, 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 body; the body is provided with a rotary positioning hole, and a first positioning steel wire is arranged in the rotary positioning hole; the yarn pressing part is connected to the front side of the body, a yarn pressing opening and a limiting notch are formed in the yarn pressing part, the yarn pressing opening is used for pressing a coil downwards, and the limiting notch is used for limiting the sinker to excessively rotate towards the front side; the method is characterized in that: the electric shoe further comprises an elastic foot pressing part, the power sheet heel part is connected to the top side of the body, the power sheet heel part is formed by extending a part of the top surface of the body upwards to the rear part to form an inclined cantilever and then extending the inclined cantilever upwards to form a section of vertical sheet heel; the elastic foot pressing part is formed by a C-shaped elastic arm formed by extending a part of the rear wall surface at the joint of the inclined cantilever and the vertical heel downwards and forwards and then backwards and upwards; the heel part of the power sheet enables the body to rotate back and forth by taking the first positioning steel wire as a rotating shaft under the action of power; the elastic presser foot part can generate elastic deformation and is used for providing elastic pressure for the body, so that continuous pressure is always kept when the yarn pressing part presses yarns.

Preferably, the body, the elastic presser foot part, the power blade heel part and the yarn pressing part are integrally formed by metal materials.

Preferably, the yarn pressing opening is positioned in front of the limiting notch, and both openings of the yarn pressing opening and the limiting notch face downwards.

In order to solve the technical problem, the invention also provides a sinker mechanism which comprises a needle plate and a sinker seat, wherein the front end of the needle plate is a tooth mouth end, the needle plate is provided with a row of insert grooves which are uniformly spaced, and the sinker seat is arranged above the needle plate; the method is characterized in that: the sinker assembly is arranged on the bottom plate;

the sinker component is arranged above the sinker seat, the sinker component is connected with a knitting triangle bottom plate of the computerized flat knitting machine, the knitting triangle bottom plate is connected with a machine head, and the machine head moves left and right to drive the knitting triangle bottom plate and the sinker component to move left and right synchronously;

a row of sinker guide grooves are formed in the sinker seat, and the sinker guide grooves and the inserting grooves are arranged in a one-to-one up-down correspondence manner; the first positioning steel wire is connected with the needle plate, the sinker body is arranged at the front end of the inserting sheet groove through the first positioning steel wire, the yarn pressing part is exposed out of the front end of the inserting sheet groove, the upper parts of the elastic pressing foot part and the power blade heel part extend into a sinker guide groove on a sinker seat corresponding to the inserting sheet groove, the end part of the elastic pressing foot part abuts against the rear side wall surface of the sinker guide groove, and the top end part of the power blade heel part is exposed out of the top part of the sinker guide groove and then is acted by the sinker guide block;

the power blade heel part enables the sinker body to rotate back and forth by taking the first positioning steel wire as a rotating shaft under the action of the sinker assembly; the elastic presser foot part can generate elastic deformation and is used for providing elastic pressure for the sinker body so as to keep continuous pressure when the yarn pressing part presses yarn;

the letter gram assembly comprises a connecting seat, a letter gram mother board, a letter gram guide block, a left letter gram triangle, a right letter gram triangle and a middle letter gram triangle; the top surface of the letter gram mother board is connected with the connecting seat, the bottom surface of the letter gram mother board is connected with the letter gram guide block, and the connecting seat is connected with the weaving triangular bottom board; the left sinker cam, the middle sinker cam and the right sinker cam are sequentially arranged on the sinker guide block from left to right, wherein the left sinker cam and the right sinker cam are fixedly arranged, a chute is formed in the section of the sinker guide block between the left sinker cam and the right sinker cam, the middle sinker cam is connected with a sliding block, the sliding block can be arranged in the chute in a left-right sliding mode, a sinker needle channel is arranged on the sinker guide block, the left sinker cam, the middle sinker cam and the right sinker cam are arranged on one side of the sinker needle channel, the heel part of a power sheet of the sinker extends into the sinker needle channel, and the sinker is pushed by the left sinker cam, the middle sinker cam and the right sinker cam to enable the sinker to rotate forwards to perform yarn pressing or rotate backwards to remove yarn pressing;

in the process that the sinker assembly moves left and right, the middle sinker cam moves along the sliding groove under the resistance of the sinker, and the middle sinker cam pushes against the power blade heel of the sinker until the middle sinker cam abuts against the left sinker cam or the right sinker cam.

Compared with the prior art, the invention has the following advantages and effects:

1. the elastic pressure foot part is C-shaped, the C-shaped design can ensure that the elastic pressure foot part has good elasticity, the elastic pressure foot part is easier to deform under the action of external force, the pressure on the coil has stronger flexibility, and the coil is not easy to break;

2. the elastic presser foot part enables the yarn pressing part of the sinker to always keep a flexible pressure to enable the old coil to be in a pressed state, and the phenomenon that the sinker is widely used for pressing the coil by utilizing rigid pressure to cause the coil to be pressed and broken to form defective products in the flat knitting machine in the market at present can not occur;

3. the yarn pressing part is provided with a yarn pressing opening and a limiting notch, when the sinker rotates around a first positioning steel wire to the front side under the action of power to press down yarns, the limiting notch is clamped into the corresponding sinker limiting steel wire, so that the rotation angle of the sinker is controllable, the looping height can be effectively controlled, uniform and consistent coils can be formed under a certain looping density, and the quality of the braided fabric is improved;

4. the sinker in the sinker mechanism is always in a yarn pressing state, and the left sinker cam or the right sinker cam acts on the heel part of the power blade of the sinker firstly during weaving, so that the sinker rotates backwards to lift and relieve yarn pressing, and needle punching is prevented;

5. the sinker component in the sinker mechanism is not required to be driven by a special motor, the middle sinker triangle changes along with the movement direction of the machine head and stays in a knitting area, the left and right sinker triangles at the two sides are fixed sinker triangles, and the yarns of the fixed sinker triangles are loosened before the system is knitted, so that the knitting is not easy to stitch;

6. the sinker mechanism enables the fabric to be smoother and can weave more patterns, such as yarn filling and the like.

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 inventive effort.

Fig. 1 is a schematic perspective view of a sinker according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a part of the sinker mechanism in the embodiment of the present invention.

Fig. 3 is a schematic perspective view of a portion of the sinker mechanism according to an embodiment of the invention (with the sinker assembly removed).

Fig. 4 is a schematic view of the sinker in a state of being pressed and in a state of not being pressed.

Fig. 5 is a left side view of the sinker mechanism in an embodiment of the invention.

Fig. 6 is a schematic perspective view of a signal gram module according to an embodiment of the present invention.

Fig. 7 is a schematic bottom structure diagram of a signal gram module in an embodiment of the invention.

Fig. 8 is a schematic perspective view of a middle beacon triangle in an embodiment of the present invention.

Fig. 9 is a schematic front view of a middle cue triangle in the embodiment of the present invention.

Fig. 10 is a schematic top view of a middle signal gram triangle in an embodiment of the present invention.

Fig. 11 is a schematic diagram of the needle track of the sinker when the machine head moves to the right.

Fig. 12 is a schematic diagram of the needle track of the sinker when the machine head moves to the left.

Description of reference numerals: the sinker 1, the body 11, the elastic presser foot part 12, the power blade heel part 13, the inclined cantilever 131, the vertical blade heel 132, the yarn pressing part 14, the rotary positioning hole 111, the yarn pressing port 141, the limiting notch 142, the needle plate 2, the sinker seat 3, the sinker guide groove 31, the sinker assembly 4, the connecting seat 41, the sinker mother plate 42, the sinker guide block 43, the left sinker cam 44, the right sinker cam 45, the middle sinker cam 46, the slide block 461, the sinker needle channel 431, the slide groove 432 and the first positioning steel wire 5.

Detailed Description

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