JP5564479B2 - Needle bed of flat knitting machine - Google Patents

Description

  The present invention relates to a flat knitting machine, and more particularly to a needle bed of a flat knitting machine.

  The flat knitting machine controls the process of creating a loop guided by a knitting needle, that is, separating the created loop from the knitting needle, pulling the loop on the knitting needle, and then dropping the loop from the needle tip to create a new loop. In order to do this, a sinker is arranged between the knitting needles. The sinker has an outer edge that protrudes on one side facing the knitting needle, and when the sinker is rotated, the protruding outer edge presses the yarn hooked by the knitting needle to create a loop, thereby forming a pattern on the surface of the knit product. Organize.

  In the conventional flat knitting machine, in order to stabilize the rotation of the sinker, in Patent Document 1 and Patent Document 2, a sinker fixing base is separately provided on the needle bed. The sinker fixing base fixes the connecting base on the needle bed, and the sinker fixing base for each sinker is provided with a recess, thereby restricting the operation method so that the sinker does not shift. Further, the sinker fixing base disclosed in Patent Document 3 further includes a control device that controls the rotation operation of the sinker. Generally, a sinker control device includes two adjacent first and second cams arranged side by side. Each of the first cam and the second cam is supported on a basic base that moves horizontally with respect to the sinker fixing base by an interlocking mechanism. On the interlocking mechanism, at least one magnet that attracts the sinker fixing base by magnetism is provided. Provide. When the sinker control device moves horizontally with respect to the sinker fixing base, whether or not the first cam and the second cam press the sinker in the first cam and the second cam to support the sinker based on the moving direction. Then, the rotation angle is changed to form loops of different sizes.

  In actual operation, whether or not the sinker can perform an accurate rotation stroke depends on whether or not the sinker control device can perform a stable horizontal movement with respect to the sinker fixing base. If the surface of the sinker fixing base is rough and affects the smoothness of movement of the sinker control device, a mistake occurs in the rotation control of the sinker. Therefore, a general sinker fixing base is made of an integrally formed steel material, and its length is substantially equivalent to a needle bed. The surface on one side of the sinker fixing table facing the sinker control device is required to be as flat as possible, and manufacturing requires high precision, so that the price is very expensive.

European Patent No. EP15222618 European Patent No. EP15222617 US Pat. No. 5,475,990

  The main object of the present invention is to solve the problem of increasing the manufacturing cost by providing a sinker fixing base in a conventional flat knitting machine.

In order to achieve the above-described object, the needle bed of the flat knitting machine provided by the present invention is arranged on both sides of the gap of the tooth gap, and a plurality of partition plates parallel to each other and a plurality of knitting needles disposed between the partition plates. And a sinker, and a sinker control device that moves parallel to the direction of arrangement of the sinkers. The sinker control device includes a switching device that performs a switching stroke according to the moving direction, and at least one control cam that is linked to the switching stroke of the switching device and rotates the sinker in the direction of the gap between the teeth. On the partition plate, at least one pressure needle plate for restricting the vertical movement of the knitting needle is provided, and the switching device of the sinker control device facing the pressure needle plate is provided with a magnetic adsorption portion that attracts the pressure needle plate by magnetism. A partition piece for limiting the horizontal shift of the sinker is provided between the partition plates.

  In the embodiment, the partition plate is provided with a pigeon tail groove for accommodating the pressure needle plate.

  In the embodiment, the partition piece and the knitting needle are vertically arranged between the partition plate and the sinker.

In the embodiment, a yarn guide piece is provided between the knitting needle and the sinker.

  In the embodiment, the sinker is provided with a fixing portion, and the fixing portion is provided with a rotation axis that is parallel to the arrangement direction of the sinkers.

In the embodiment, two holes are provided on the partition plate, and a first fixed rod and a second fixed rod are inserted into each of the holes.

In the embodiment, the partition piece is provided with a perforation for inserting the first fixed rod and a positioning recess for inserting the second fixed rod , the perforation is an oblong hole, and the positioning recess includes a curved portion.

In the embodiment, the thread guide piece is provided with a perforation for inserting the first fixed rod and a positioning recess for inserting the second fixed rod , the perforation is an oblong hole, and the positioning recess includes a curved portion.

In the embodiment, the yarn guide piece includes a stacking unit for installing the knitting needle.

The partition piece arranged between the pressure plate and the partition plate on the partition plate replaces the sinker fixing base used to stabilize the rotation stroke of the sinker and switch the sinker control device in the prior art. .
Since it is not necessary to attach a sinker fixing base, the production cost of the flat knitting machine can be effectively reduced.

It is sectional drawing which shows the structure of the flat knitting machine to which this invention is applied. It is a partial cross section figure of the Example regarding the needle bed of the flat knitting machine of this invention. It is an external view which shows the partial structure of the Example regarding the needle bed of the flat knitting machine of this invention. It is a partial exploded view of the Example regarding the needle bed of the flat knitting machine of this invention. It is a partially expanded exploded view of the Example regarding the needle bed of the flat knitting machine of this invention. It is a front view which shows the structure of the Example regarding the needle bed of the flat knitting machine of this invention. It is a top view which shows the structure of the Example regarding the needle bed of the flat knitting machine of this invention.

  In order to describe in detail the technical contents, structural features, and objects to be achieved of the present invention, examples will be described below in combination with drawings.

  FIG. 1 shows a sectional view of a structure of a flat knitting machine to which the present invention is applied. As shown in the figure, in the present invention applied to the flat knitting machine 10, the flat knitting machine 10 includes two needle beds 20 respectively arranged on both sides of the mouth gap 11, and the needle beds 20 are installed facing each other in a mountain shape. Is done. On the needle bed 20, a carriage 30 that reciprocates in the lateral direction is provided opposite to the needle bed 20. Each of the carts 30 for the needle bed 20 includes a sinker control device 31.

2, 3, and 4 are an external view, a partial cross-sectional view, and a partially exploded view showing a partial structure of the present invention. A plurality of parallel groove portions 21 are provided on each needle bed 20, a partition plate 22 is disposed in each groove portion 21, and a needle groove 23 is formed between the two partition plates 22. Each needle groove 23 includes a knitting needle 24, a sinker 25, a partition piece 26, and a yarn guide piece 27. The knitting needle 24 is disposed in the needle groove 23 so as to be movable back and forth along the direction of the needle groove 23. When the knitting needle 24 moves along the direction of the gap 11 of the mouth, the knitting yarn is hooked. The sinker 25 includes a pressing pressure protrusion 251, a control protrusion 252, and a fixing part 253. The sinker 25 is pivotally mounted on the rotation shaft 41 by a fixed portion 253, and the rotation shaft 41 is disposed in the recess 201 on the needle bed 20 so as to be parallel to the arrangement direction of the sinkers 25. The sinker control device 31 installed in the carriage 30 includes a switching device 311 and at least one control cam 312 that is linked to the switching device 311. The control protrusion 252 of the sinker 25 is disposed in the control cam 312, and the sinker 25 is pushed and rotated when the control cam 312 is driven by the switching device 311 and moves toward the tooth gap 11.

Since at least one pressure needle plate 28 for restricting the vertical movement of the knitting needle 24 is provided on the partition plate 22, the position of the knitting needle 24 is restricted within the needle groove 23. The pressure needle plate 28 includes a plurality of portions. In order to fix the pressure needle plate 28 on the partition plate 22, the partition plate 22 includes a dovetail groove 221 that accommodates the pressure needle plate 28. In the present invention, the switching device 311 of the sinker control device 31 opposed to the pressure needle plate 28 includes a magnetic suction portion 313 that attracts the pressure needle plate 28 by magnetism. The magnetic adsorption unit 313 and the pressure needle plate 28 of the switching device 311 are attracted by magnetism in a normal state, and the sinker control device 31 performs a lateral movement with respect to the needle bed 20 by the follower of the carriage 30. The switching device 311 determines whether or not the control cam 312 pushes the sinker 25 and rotates it in the direction of the tooth gap 11 depending on the difference in traveling direction of the sinker control device 31.

As shown in FIGS. 4, 6, and 7, a knitting needle 24, a sinker 25, a partition piece 26, and a yarn guide piece 27 are provided in the needle groove 23 formed between the two partition plates 22. The yarn guide piece 27 includes a stacking portion 222 in which the knitting needle 24 is disposed. The sinker 25 is installed between the partition plate 22 and the knitting needle 24, and a yarn guide piece 27 is provided between the sinker 25 and the knitting needle 24. In the present invention, since the height of the sinker 25 and the yarn guide piece 27 exceeds the knitting needle 24, when the sinker 25 rotates in the needle groove 23, a horizontal shift is prevented. A partition piece 26 is further provided between the yarn guide piece 27 and the partition plate 22, and the thicknesses of the partition piece 26 and the knitting needle 24 are the same, and are arranged vertically. Therefore, the upper structure of the sinker 25 simply moves between the partition piece 26 and the partition plate 22, and stabilizes the rotation stroke of the sinker 25.

Each of the partition plates 22 is provided with two corresponding apertures 223, and a first fixed rod 42 and a second fixed rod 43 are inserted into each of the partition plates 22. This is as shown in FIG. 4 and FIG. 5, and the partition plates 22 are fixed to each other on the needle bed 20. At the time of knitting with the flat knitting machine 10, in order to maintain the positions of the partition piece 26 and the yarn guide piece 27 in each needle groove 23 and stabilize the operation of the knitting needle 24 and the sinker 25, the partition piece 26 and the yarn guide piece 27. Are provided with a perforation 261 and a perforation 271 into which the first fixed rod 42 is inserted, and a localization recess 262 and a localization recess 272 into which the second localization rod 43 is inserted. Each of the localization concave portion 262 and the localization concave portion 272 of the partition piece 26 and the yarn guide piece 27 includes a curved portion 263 and a curved portion 273 that accommodate the second localization rod 43. Further, when the partition piece 26 or the thread guide piece 27 is manufactured, a tolerance is generated in the perforation 261 or the perforation 271, so that in the process of assembling the partition piece 26 or the thread guide piece 27, the first fixed rod 42 is connected to each partition piece 26 or the thread. In order to prevent the problem that the guide piece 27 cannot be smoothly penetrated into the perforation 261 and perforation 271, in the present invention, the perforation 261 and the perforation 271 are oblong holes that allow tolerance, and the tolerance allowable direction of the oblong hole is a needle groove. 23, the vertical direction or the horizontal direction.

  In summary, in the needle bed of the flat knitting machine according to the present invention, the partition piece 26 disposed between the pressure plate 28 on the partition plate 22 and the partition plate 22 stabilizes the rotation stroke of the conventional sinker, and the sinker It replaces the sinker fixing base used to switch the control device and eliminates the need to attach a connecting base for connecting the sinker fixing base and the partition plate 22, greatly reducing the production cost of the flat knitting machine To do.

  The above description is only an example of the present invention, and does not limit the scope of the present invention. Any equivalent changes and modifications that can be made based on the scope of the claims of the present invention are all described in the present invention. Shall belong to the scope covered by the rights.

DESCRIPTION OF SYMBOLS 10 Flat knitting machine 11 Tooth gap 20 Needle bed 201 Recess 21 Groove part 22 Partition plate 221 Pigeon tail groove 222 Stacking part 223 Opening hole 23 Needle groove 24 Knitting needle 25 Sinker 251 Pressing pressure protrusion part 252 Control protrusion part 253 Fixing part 26 Partition piece 261 Perforation 262 Localization recess 263 Curved portion 27 Thread guide piece 271 Perforation 272 Localization recess 273 Curved portion 28 Pressure needle plate (pressor)
30 bogie 31 sinker control device 311 switching device 312 control cam 313 magnetic adsorption portion 41 rotating shaft 42 first fixed rod 43 second fixed rod

Claims (10)

The needle bed of the flat knitting machine that arranges each on both sides of the gap of the mouth,
A plurality of partition plates parallel to each other;
A plurality of knitting needles and sinkers arranged between the partition plates;
A sinker control device that translates relative to the arrangement direction of the sinkers,
The sinker control device includes a switching device that performs a switching stroke according to the moving direction, and at least one control cam that is linked to the switching stroke of the switching device and rotates the sinker in the direction of the gap between the teeth,
On the partition plate, at least one pressure needle plate that restricts the vertical movement of the knitting needle is provided, and the switching device of the sinker control device facing the pressure needle plate includes a magnetic suction part that attracts the pressure needle plate and magnetism, and the partition plate In the meantime, with a partition piece that limits the horizontal shift of the sinker ,
A needle bed of a flat knitting machine, wherein a yarn guide piece is provided between the knitting needle and the sinker .   The needle bed for a flat knitting machine according to claim 1, wherein the partition plate is provided with a dovetail groove for accommodating a pressure needle plate.   The needle bed of the flat knitting machine according to claim 1, wherein the pressure needle plate is constituted by a plurality of portions.   The needle bed of a flat knitting machine according to claim 1, wherein the partition piece and the knitting needle are vertically arranged between the partition plate and the sinker. The needle bed of a flat knitting machine according to claim 1, wherein the sinker includes a fixing portion, and the fixing portion is provided with a rotation shaft that is parallel to the arrangement direction of the sinkers. The needle bed of the flat knitting machine according to claim 1, wherein two holes are provided on the partition plate, and a first fixed rod and a second fixed rod are inserted into each of the holes. The needle bed of a flat knitting machine according to claim 6, wherein the partition piece is provided with a perforation for inserting the first fixed rod and a fixed recess for inserting the second fixed rod. The needle bed of a flat knitting machine according to claim 7, wherein the perforations are oblong holes. The needle bed of a flat knitting machine according to claim 7, wherein the localization concave portion includes a curved portion. The needle bed of a flat knitting machine according to claim 1, wherein the yarn guide piece is provided with a stacking portion for arranging a knitting needle.

Images