JPS6217510Y2 - - Google Patents

Description

[Detailed description of the invention] This invention aims to provide a flat knitting machine capable of rubber knitting any jacquard pattern, which is particularly suitable as a tape knitting machine, at a low cost. The gist of the machine is a knitting needle without a butt in each needle groove of the front and rear needle beds of a V-bed flat knitting machine, and a needle jack with a butt connected to the knitting needle. When pressed, the above-mentioned butts protruding from the upper surface of the needle bed are inserted into the needle jacks, which are made flexible so that they can be inserted into the needle grooves. The presser jack is positioned in the needle groove behind the butt and is swingable about its rear end as a fulcrum, the presser jack has a butt on the upper surface of its front part and the lower surface of the front part is connected to the needle gear. A presser jack that can be pressed down is disposed on the upper surface of the needle, and the presser jack in the needle groove of the front needle bed moves the presser jack between forward and backward positions along the longitudinal direction of the needle groove. A needle selection device is configured so that its position can be moved between the front cam box on the carriage, and can control the advance or retreat of any presser jack between the backward position and the forward position. A presser cam is disposed at one of the positions to act on the butt of the selected presser jack to keep the butt of the needle jack in the retracted position within the needle groove in the lasing action area of the lasing cam. The presser jack in the needle groove of the rear needle bed has its butt alternately placed in two positions, a forward position and a retracted position, along the longitudinal direction of the needle groove. The upper rear cam box acts alternately on the butts of the presser jacks in two positions, front and rear, and alternately controls the butts of the odd-numbered needle jacks and the even-numbered needle jacks counting from the end of the needle groove. The flat knitting machine is characterized in that a presser cam is provided which can be maintained in a retracted position within the needle groove in the raising action area of the raising cam.

To explain one embodiment with reference to the drawings, as shown in FIG. 1, in the needle grooves 2 of the front and rear needle beds 1,
A knitting needle 3 without a butt, and a needle jack 5 connected to the knitting needle 3 and having a butt 4. When the upper surface of the jack 5 is pressed, the butt 4 protruding from the upper surface of the needle bed 1 is pressed to release the needle. A needle jack 5 made flexible so that it can be inserted into the groove 2 is installed, and is positioned in the needle groove 2 behind the butt 4 above the needle jack 5, and the rear end 2 along the longitudinal direction of the needle groove 2.
The presser jack 7 is click-engaged with one of the position recesses 7a and 7b and can be pivoted to a selective position 6, and has a butt on the upper surface of the front part on its free end side. 8, and the lower surface of the front part is
A presser jack 7 that can be pressed down is disposed on the upper surface of the needle jack 5, and a presser jack 7 that acts on the butt 4 of the needle jack 5 is attached to a cam box 10 on the carriage. Presser cams 12 and 13 (the details of which will be described later) that act on the butt of the needle 7 are installed in the flat knitting machine according to this invention. The implanted presser jack 7 must be able to move forward and backward between the forward position and the retracted position in the longitudinal direction of the needle groove 2. The presser jack 7 installed in the front side only needs to be able to swing at a fixed position in the longitudinal direction of the needle groove. A presser jack having the same structure as the presser jack 7 is used as the presser jack 7 on the rear side.

Next, as described above, the presser jack 7, which is movable forward and backward and installed in the needle groove 2 of the front needle bed 1, is selected and positioned at a desired position. To explain the needle device, this needle selection device includes an electromechanical needle selection device 15 provided on a carriage, and a selector jack 2 that is selectively moved forward and backward by cams 16, 17, 18, etc.
(Such a needle selection device is already known from Japanese Patent Laid-Open No. 54-68440). Briefly, the selector jack 20 is located behind the butt 8 of the presser jack 7 and is provided within the needle groove 2.
For example, when the carriage moves to the left in FIG.
Only the needles selected by the actuators 15a, 15a . Then, the cam 1 on the trailing side (right side) of the needle selection device 15
It is designed to move forward by 7. At this time, the selector jack 2
0 by the tip of the presser jack 7.
However, by pushing the back of the butt 8, the selector jack 20 is pushed forward from the backward position to the forward position. When the carriage moves to the right in the opposite direction, it is moved backward by the surface of the right cam 18 acting on the butt 21, and in this way, when the carriage moves to the left, it is moved forward to the forward position. When the carriage moves to the right in the opposite direction, the right clear cam 19 provided on the cam box 10 is projected to the operating position, and the butt 8 of the presser jack 7 acts on it. However, if the clear cam 19 is retracted into the position where it does not act on the butt 8, the presser jack 7, which was moved forward first, will be kept in the forward position. It's getting old.

In this way, in the front needle bed 1, any presser jack 7 can be moved to either the retracted position or the forward position before the retaining lock 11 of the carriage acts on the butt 4 of the needle jack 5. However, in the flat knitting machine of the embodiment according to this invention, the presser jack 7 is placed in a position where it can act only on the butt 8 of the presser jack 7 in the retracted position. A presser cam 12 is provided on the front cam box 10, and the presser cam 12 of this embodiment has a needle jack 5 that covers at least the action area of the stitch 22 on the stitching lock 11. A cam surface is provided that prevents the butt 4 from coming into contact with the thread 22. That is, the presser cam 12 of this embodiment includes the nitrogen lock 11.
A flat cam surface 12b is sandwiched between the flat cam surfaces 12b, which cover the knitting action area of the thread 22 and extend to the outside thereof, and can hold the butt 4 of the needle jack 5 in the needle groove 2. Cam slopes 12a, 12a are formed to guide the presser cam 12 into the needle groove 2 on the leading side and out of the needle groove 2 on the trailing side. The action area W in the running direction of the presser cam 12 is made relatively small, and the butt 4 of the needle jack 5 kept in the retracted position by the action of the presser cam 12 is prevented from coming into contact with the needle ridge 22. In order to do this, a portion of the lower surface of the dowel 22 at the rear of the knitting action area is scooped out to form a slope 22a as shown in FIG.

As described above, in the needle groove 2 of the front needle bed 1, the selector jack 20, which can be advanced or retracted as desired by the needle selection device, is disposed as described above. The knitting needles 3 in the needle grooves 2 of the knitting needles 3 are moved to the butt 8 of the presser jack 7 in the retracted position by selecting and dividing the presser jack 7 into the backward position and the forward position for each knitting course. ,
If the presser cam 12 is activated in the area of action of the stitching lock 11, only the butt 4 of the needle jack 5 in the needle groove 2 where the presser jack 7 is in the forward position will cause the tightening lock 11 to raise. Only the knitting needles 3 within the needle groove 2 are kept in the knitting action position by the cam 21, and the other knitting needles 3 are at rest.

Next, the needle selection mechanism for the knitting needles 3 implanted in the needle groove 2 of the needle bed 1 on the rear side will be explained.
The butt 8 is arranged alternately at two positions along the longitudinal direction of the needle groove 2, a forward position and a backward position, which are selected in advance by an artificial needle selection means. , a presser cam 13 is provided on the cam box 10 on the rear side of the carriage, and the presser cam 13 of this embodiment is
As shown in FIG. 4, the base end thereof is pivotally supported within the cam box 10 by a shaft 25 parallel to the advancing direction of the carriage, and the positions of the cam surfaces 13a and 13b on the free end side are It is configured to be freely displaceable between a backward position where it can act on the butt 8 of the presser jack 7 at the backward position and a forward position where it can act on the butt 8 of the presser jack 7 at the forward position, The presser cam 13 of this embodiment is controlled to one of the two positions by a two-position holding type solenoid 26 connected thereto.

Note that the presser cam 13 provided on the rear cam box 10 also has a cam action 13a, 13 on the butt 8 of the presser jack 7.
On the b side, connect this to the front presser cam 12.
Similarly, the cam surface covers at least the action area of the raising cam 21 and the action area of the raising flange 22 in the stitching lock 11, and prevents the butt 4 of the needle jack 5 from coming into contact with the raising cam 21 and the raising crest 22. 13b is given. 13a is a cam slope on the side of the flat cam surface 13b. In addition, in the figure, 23 is a recess formed in the raising cam 21.

Next, to explain the operation, since the flat knitting machine according to this idea has the above-mentioned configuration,
In the case of the above embodiment, as already explained, the butt 8 position of the presser jacket 7 implanted in the needle groove 2 of the rear needle bed 1 is set, for example, at each odd-numbered position from the end of the needle groove. The presser cam 13 is placed in the backward position when the carriage moves to the right, and the presser cam 13 is placed in the backward position when the carriage moves to the right. When the carriage is moved to the forward position, on the rear needle bed 1, the butt 4 of each odd-numbered needle jack 5 is placed on the rear needle bed 1 when the carriage is moved to the right, and the butt 4 of each odd-numbered needle jack 5 is placed on the rear needle bed 1 when the carriage is moved to the left. Butt 4 of Tsuku 5 is
Each of them is pushed into a non-active position within the needle groove 2 in the working area of the raising cam 22 and is brought to rest. Therefore, when the carriage moves to the right, only the even-numbered knitting needles ₃₂ are fed, and when the carriage moves to the left, the yarn is fed alternately to each odd-numbered knitting needle _31.
knitting yarn will be supplied only to

On the other hand, the butt 8 position of the presser jack 7 installed in the needle groove 2 of the front needle bed 1 is as follows.
As mentioned above, by means of a needle selection device installed on the carriage, any one of the needles can be selected for each course into the forward position, and the remaining ones can be selected and placed in the backward position. At the butt 8 of the presser jack 7 located in the reverse position,
When the carriage is running, the pressur cam 12
The action area of the raising cam 22 on the butt 4 of the needle jack 5 is activated, and the butt 4 of the needle jack 5 is pushed into the non-action position within the needle groove 2 and is stopped. The knitting needles 3 in the needle groove 2 of the needle bed 1 are
Knitting yarn can be supplied only to selected knitting needles 3 for each course.

Therefore, according to the flat knitting machine of this invention, each knitting course is knitted as shown in Fig. 5 A (right course), B (left course), and C (right course). If you change the color of the knitting yarn appropriately,
On the front side of the knitted fabric (on the side where the knitting loops are formed by the front knitting needles), a rubber knitting structure with a desired jacquard pattern can be obtained.

In the above embodiment, a presser jack 7 of the same standard as the presser jack 7 installed in the needle groove 2 of the front needle bed 1 is placed in the needle groove 2 of the rear needle bed 1. Although an example in which the needle is used has been described, in other embodiments, the presser jack 7 installed in the needle groove 2 of the needle bed 1 on the rear side has different butt positions in the longitudinal direction. Needless to say, it may be a standard product of two types (not shown). In addition, in this specification, one needle bed in the V-bed flat knitting machine is temporarily referred to as the front side, and the other needle bed is temporarily referred to as the rear side, but the same applies even if the front and back are reversed. Needless to say, it does not necessarily have to be the same as the front and back of the actual machine.

In addition, in the above embodiment, a pair of knitting locks are provided on the front and rear cam boxes, but if the flat knitting machine of this invention is used as a tape knitting machine, the above-mentioned selection will be possible. By providing two or more pairs of needle devices and knitting locks, two or more tapes can be efficiently knitted simultaneously.

The flat knitting machine according to this invention has been described above with reference to the embodiments. In the flat knitting machine according to this invention, only the presser jack on the front needle bed is moved between the forward position and the backward position along the longitudinal direction of the needle groove. A needle selection system configured to be movable between positions, and to control the forward and backward movement of any presser jack between the retracted position and the forward position, only in the front needle groove and the cam box. The rear cam box in the rear needle groove is provided with a presurge which is set in advance alternately in the forward or backward position in the needle groove without such a needle selection device. It is simply a flat knitting machine that can produce any jacquard pattern on the surface of the knitted fabric, but its mechanism is simple, as it is simply equipped with presser cams that can act alternately on the butts of the knitted fabric. It is particularly suitable for the tape knitting machine as described above, and can be provided at low cost.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the needle bed of the flat knitting machine according to this invention, Fig. 2 is a plan view showing the front and rear cam boxes developed, and Fig. 3 is a longitudinal sectional view of the needle bed of the needle bed of the flat knitting machine according to this invention.
FIG. 4 is a longitudinal cross-sectional side view of the presser cam (the cross section is taken along the line - in FIG. 2), and FIG. 5 is a knitting diagram. 1... Needle bed, 2... Needle groove, 3... Knitting needle, 4...
Butt, 5...needle jack, 6...pivot point, 7...pressure jack, 8...butt,
10... Cambox, 11... Nissutein Grock, 12, 13... Presser Cam, 21...
Raging Cam.

Claims (1)

[Scope of claim for utility model registration] 1. In each needle groove of the front and rear needle beds of a V-bed flat knitting machine,
A knitting needle without a butt, and a needle jack with a butt connected to the knitting needle. When the upper surface of the jack is pressed, the butt protruding from the upper surface of the needle bed is pushed into the needle groove. implanting a needle jack made to be moist and flexible and positioning it in the needle groove behind the butt above each needle jack,
A presser jack that can swing around its rear end as a fulcrum, and has a butt on the upper surface of its front portion and can press down the lower surface of the front portion onto the upper surface of the needle jack. The presser jack in the needle groove of the front needle bed is configured to be movable between a forward position and a retracted position along the longitudinal direction of the needle groove. , the front cam box on the carriage is equipped with a needle selection device that can control any presser jack to move forward or backward between the reverse position and the forward position, and a needle selector that can control the advance or retraction of any presser jack between the reverse position and the forward position, and a needle selector that can move the presser jack forward or backward between the reverse position and the forward position, and a needle selector that can move the presser jack forward or backward between the reverse position and the forward position. A presser cam is installed to act on the butt of the needle jack to keep the butt of the needle jack in the recessed position within the needle groove in the lasing action area of the lasing cam, and the butt of the needle jack in the needle groove of the rear needle bed. The presser jack has its butts placed alternately in two forward positions and backward positions along the longitudinal direction of the needle groove, and the butts are placed in the rear cam box on the carriage in two positions, front and rear. It acts alternately on the butts of the presser jacks, and the butts of the odd-numbered needle jacks and even-numbered needle jacks counting from the end of the needle groove are alternately activated in the lasing action area of the lasing cam within the needle groove. A flat knitting machine characterized by being equipped with a pretensioner cam that can be kept in the closed position. 2. A request for registration of a utility model in which the presser cam has at least a cam surface that covers the action area of the stitches in the needle jack and prevents the butt of the needle jack from coming into contact with the stitches. The flat knitting machine according to item 1 of the scope.