JPS6333985Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention has a carriage installed on a needle bed having a large number of knitting needles, in which a hook is capable of moving back and forth an opposing needle facing the hook of the knitting needles, and a slight movement around an axis in the back and forth direction. The hooks of the opposing needles are rotatably supported, and the hooks of the opposing needles are coupled and released from the hooks of the knitting needles to transfer the stitches, so that the opposing needles can knit stitches that are the reverse of the stitches knitted by the knitting needles. This is about a knitting machine that has been developed.

Purpose The purpose of this invention is to connect the hooks of both needles in order to transfer the stitches knitted by the opposing needles to the knitting needles. During the retreat period when you are moved backwards from
The stitches are brought into close contact with the inner surface of the hook of the opposing needle to prevent the stitches from floating or being misaligned, and even if the tip of the hook of the opposing needle comes into contact with the comb teeth, the tip of the hook will not touch the comb teeth. To provide a new knitting machine capable of reliably transferring stitches from opposing needles to knitting needles by ensuring that the stitches enter the original working area without deviating to the outside.

Composition In order to achieve the above-mentioned purpose, this device connects the hook of the opposing needle to the hook of the knitting needle when transferring a new stitch knitted by the opposing needle. The counter needle is configured to move slightly upward and rotate slightly during the retreat period when passing through the position of the comb teeth.

Embodiment Hereinafter, an embodiment embodying this invention will be described based on the drawings.

As shown in FIG. 1, a large number of comb teeth 3 are arranged at equal pitches on the front edge of the needle bed 1 of the knitting machine of this embodiment, and in the needle groove 2 provided at the rear between each comb tooth 3. A large number of knitting needles (hereinafter referred to as main needles) 4 are attached to the bat 4.
b are arranged so as to be movable back and forth with the portions protruding upward. A carriage 5 is placed on the needle bed 1.
is slidable left and right along the direction in which the main needles 4 are arranged, and a main cover 6 is removably attached to the carriage 5 so as to cover the entire carriage.

As shown in FIG. 2, a drive cam wheel 13 rotated by a motor (not shown) is disposed inside the center of the carriage 5, and the cam wheel 13 has a drive cam wheel 13 for operating each mechanism in the knitting machine of this embodiment. A plurality of cams are formed. FIG. 7 is a diagram showing the shapes of the main needle drive cam 50, the sub needle back and forth movement cam 51, and the sub needle rotation cam 52, which are related to the present invention among these cams.

A main needle actuating body 9 is inserted and supported in the rear part of a support shaft 8 provided so as to extend back and forth on the right side of the carriage 5 (left side in FIG. An operating arm 10 is integrally formed that projects toward the center of the carriage 5. A gripping body 11 is connected and fixed to the tip of the operating arm 10, and a gripping portion 11a for gripping the butt 4b of the main needle 4 is provided on the lower surface of the rear end. Further, a guide passage 12 extending back and forth is provided on the lower surface of the center of the carriage 5.
A guide plate 12 having a shape a is arranged so that its position can be adjusted back and forth. Then, the main needle operating body 9 and the gripping body 11 are integrally moved back and forth via a lever mechanism (not shown) connected to the main needle driving cam 50 of the driving cam wheel 13, so that the gripping portion 11a
While the butt 4b held by the hook 4b is guided through the guide passage 12a of the guide plate 12, the main needle 4
a bellow removal position where a protrudes in front of the comb teeth 3;
The comb teeth 3 are reciprocated back and forth between a knock-over position and a retracted position behind the comb teeth 3.

As shown in FIGS. 2 and 3, a support fitting 18 having a generally U-shaped side surface is fixed to the lower front surface of the base plate 16 of the carriage 5. As shown in FIGS. This support metal fitting 18
A guide tube 20 serving as a vertically movable support member is swingably supported in a hole 20b in the approximate center of an arm portion 20a on a shaft 19 extending back and forth supported by a plate attached to the lower surface of the support fitting 18. It is biased to rotate clockwise in FIG. 3 by a spring 14.

An auxiliary needle support cylinder 21 serving as a rotation support member is rotatably inserted and supported in the guide cylinder 20 at a proximal end connecting portion 21b, and slits 21a extending back and forth are formed on both sides of the peripheral wall thereof. This secondary needle support cylinder 21
Inside, the hook 24a at the tip is the hook 4a of the main needle 4.
Opposed needle (hereinafter referred to as secondary needle) 2
4 is inserted and supported in a detachable manner. This secondary needle 2
A needle attachment rod 25 that slides within the secondary needle support cylinder 21 is fixed to the base end of the needle stem 24b of No. 4. A pair of operation protrusions 26 are integrally formed at the front end of the needle attachment rod 25 so as to protrude in a direction perpendicular to the axis of the sub needle 24 through the slits 21a of the sub needle support cylinder 21. The engagement between the piece 26 and the slit 21a allows the sub needle 24 to move back and forth with respect to the sub needle support cylinder 21 and rotate integrally around an axis extending in the front and back direction.

At the front side of the carriage 5, a support frame 15 is supported on the right side of the support shaft 8 so as to be slidable back and forth, and on the lower left side of the support frame 15 is a left side edge 16a of the front protrusion of the base plate 16. A slide guide portion 1 that fits into the support frame 15 and holds the support frame 15 substantially horizontally.
7 is formed. Rear protrusion 1 of support frame 15
The front end of an interlocking lever 62 connected to the auxiliary needle back and forth moving cam 51 of the drive cam wheel 13 is connected to a connecting pin 61 protruding from the upper surface of the drive cam wheel 5b. 15 is designed to be reciprocated back and forth.

A mounting shaft 6 is provided on the inner surface of the front wall 15a of the support frame 15.
3, an operating lever 27 having a substantially inverted L-shape from the front is rotatably supported, and a triangular locking protrusion 27a that can be displaced back and forth against its own elasticity is integrally formed at one end of the operating lever 27. At the same time, an arc-shaped linking part 27b is formed on the right side edge and can be engaged with a locking recess 26a provided at the rear of one of the operating protrusions 26 of the sub needle 24. Further, the support frame 15 is provided with a locking hole 64 into which the locking protrusion 27a engages and disengages. As shown in FIG. 4, the operating lever 27 has a locking protrusion 27a engaged with the lower edge of the support frame 15, and a connecting portion 27b engaged with the locking recess 26a of the mounting operation protrusion 26. In the locked holding position, the locking protrusion 27a is engaged with the locking hole 64 of the support frame 15, and the connecting portion 27b is in the locking recess 26a.
and a release position spaced apart from the release position. Therefore, when the operating lever 27 is placed in the holding position, the secondary needle 24 can move integrally with the support frame 15 through the engagement between the lever 27 and the operating protrusion 26, and the lever 27 is released. When placed in this position, the sub needle 24 can be rotated integrally with the sub needle support tube 21 and can independently slide back and forth with respect to the support tube 21.

As shown in FIG. 3, a shaft support 66 is fixed on the base plate 16 of the carriage 5, and a rotation member 66 for rotating and vertically moving the sub needle 24 is attached to the shaft support 66.
7 is rotatably supported by its horizontal shaft portion 68. The support shaft 8 is inserted and guided through the guide arm 69 of the shaft support 66, and a cam groove 71 having an inverted shape is formed in the hanging end of the rotation member 67. An engagement pin 72 protruding from the tip of the arm portion 20a of the guide tube 20 is engaged with the engagement pin 71. An intermediate lever 73 is rotatably supported at approximately the center by a shaft pin 70 on the front surface of the proximal end of the rotating member 67, and a spring is hung between one end of the lever 73 and the rotating member 67. 74 urges the lever 73 to rotate clockwise in FIGS. 3 and 4. A regulating piece 75 is protruded from the side edge of the rotating member 67, and the side edge of the intermediate lever 73 is normally engaged with this by the biasing force of the spring 74.
The clockwise rotation of the lever 73 is restricted.

A front end of a rotation imparting lever 76 connected to the auxiliary needle rotation cam 52 of the drive cam wheel 13 is connected to the rear end of the horizontal shaft portion 68 of the rotation member 67 .

As shown in FIGS. 5 and 6, when the rotary member 67 is reciprocated via the rotation imparting lever 76, the side edge of the intermediate lever 73 and the regulating piece 75 based on the biasing force of the spring 74 Through engagement with
The intermediate lever 73 is rotated integrally with the rotating member 67,
Linking pin 7 protruding from the other end of the intermediate lever 73
3a and the bifurcated portion 77 formed on the secondary needle support cylinder 21.
Through this connection, the secondary needle 24 together with the secondary needle support cylinder 21 is rotated by a predetermined angle around an axis extending in the front-rear direction in the coupling direction or the disengagement direction. Simultaneously with the rotation of the secondary needle 24, the guide tube 20 is swung around the shaft 19 according to the shape of the cam groove 71 through the engagement between the cam groove 71 and the engagement pin 72, and the secondary needle 24 is rotated. While relative rotation occurs between the needle support tube 21 and the guide tube 20, the sub needle support tube 21 and the sub needle 24 are moved up and down as one in a state substantially parallel to the axis extending in the front-rear direction.

In addition, 44 shown in FIGS. 1, 2, and 8 is a knitting needle guide member provided on the movement path of both the main and auxiliary needles 4, 24, and 29 is arranged near the knitting needle guide member 44 so as to be movable vertically and horizontally. The thread opening 47 is a knitted fabric presser member for engaging the stitches and restraining them from moving forward. Further, numeral 30 shown in FIG. 2 is a stitch adjustment dial for setting the stitch size.

Further, the secondary needle support cylinder 21 and the guide cylinder 20 are operated in conjunction with each other by the secondary needle rotation cam 52, the rotation member 67, the intermediate lever 73, and the rotation imparting lever 76, so that the secondary needle 2
A control member is configured to move 4 slightly upward and rotate it slightly.

Next, the operation of the knitting machine constructed as above will be explained mainly with reference to FIGS. 7 and 8. Note that the symbols 1 to 14 in FIG. 7 correspond to 1a, 1b to 14 in FIG.
a, 14b.

Now, as shown in Fig. 8 1a and 1b, the main needle 4
When the drive cam wheel 13 is rotated up to 85 degrees with the back stitch A hanging from the hook 4a, depending on the cam shape of the first cam portion 50a for flattening of the main needle drive cam 50, The main needle 4 is moved forward via the main needle actuating body 9, the gripping body 11, etc. to the latch release position shown in FIGS. 2a and 2b, and the hook 4a is moved forward.
is arranged in front of the hook 24a of the secondary needle 24.

Next, the second cam portion 50 of the main needle drive cam 50
After the main needle 4 is slightly retracted according to the cam shape of b, the rotation member 67 is moved to the fourth It is rotated clockwise in the figure. Then, as shown in FIG. 5, the spring 74 and the regulating piece 7
5, the intermediate lever 73 is rotated integrally with the rotating member 67, and through the engagement between the linking pin 73a of the lever 73 and the forked portion 77 of the secondary needle support cylinder 21,
Both the support tube 21 and the secondary needle 24 are rotated by a predetermined angle (65 degrees in this embodiment) in the counterclockwise direction in the figure around an axis extending in the front-rear direction, and as shown in FIG.
As shown in a and 3b, the hook 24a faces the hook 4a of the main needle 4 in front of the comb teeth 3. At this time, as the rotating member 67 rotates, the engaging pin 72 moves from the left end of the cam groove 71 to the central bent portion 71.
a and is relatively moved to the vicinity of the right end. Accordingly, based on the engagement of both 71 and 72, the guide tube 20 is rotated clockwise in FIG. 4 about the shaft 19, and then rotated back counterclockwise in the same figure. As a result, the secondary needle 24 is slightly moved up and down from the start to the completion of the rotation operation in the joining direction.
As is clear from a comparison between FIG. 4 and FIG. 5, when the rotation operation is completed, the guide tube 20 and the secondary needle 24 are placed in the same vertical position as when the rotation in the coupling direction is started.

Then, with the hooks 4a and 24a of both hands 4 and 24 facing each other, as shown in FIGS. Needle back and forth movement cam 51
Depending on the shape of the first cam portion 51a, both needles 4,
24 are both moved rearward, and the back stitch A on the main needle 4 is transferred onto the needle stem 24b of the sub needle 24.

That is, the main needle 4 is moved backward before the sub-needle 24, and the hooks 4a, 24a of both needles 4, 24 are combined, and while both needles 4, 24 are moved backward by a predetermined amount in this state, backfire occurs. After the transfer of A is performed and the backward movement of the main needle 4 is then stopped, the backward movement of the sub needle 24 is stopped and the connection between the needles 4 and 24 is released.

Subsequently, as shown in FIGS. 6a, 6b, 7a, and 7b, the secondary needle 24 is rotated back according to the cam shape of the second cam portion 52b of the secondary needle rotating cam 52, and the secondary needle 24 is rotated. The hook 24a is the hook 4 of the main needle 4.
Separate from a. Thereafter, when the secondary needle 24 is advanced to just before the knockover position by the action of the second cam portion 51b for knockover of the secondary needle back-and-forth moving cam 51, the yarn opening 29 is moved in the carriage movement direction to knit the knitting yarn. Y is supplied to the hook 24a of the sub needle 24. As shown in FIGS. 8a and 8b, in this state, the secondary needle 24 is moved to the knockover position, and a front stitch B, which is the reverse side of the back stitch A, is newly formed on the hook 24a in front of the comb teeth 3. It is formed.

Next, as shown in FIGS. 9a and 9b, the secondary needle 24 with the front stitch B suspended therefrom is slightly rotated around an axis extending in the front-rear direction in front of the comb teeth 3, and is moved approximately parallel to the axis. Slightly increased in this situation. That is, first, depending on the shape of the third cam portion 52c of the sub-needle rotating cam 52, the rotating member 67 is rotated via the rotation imparting lever 76. At this time,
Since the third cam portion 52c of the secondary needle rotation cam 52 is formed in a different shape from the first cam portion 52a of the same cam 52, as shown in FIG. 73 are integrally rotated at approximately half the rotation angle when the two needles 4 and 24 are combined (see FIG. 5), and the secondary needle 24 is the secondary needle support cylinder 2
1 and rotated slightly counterclockwise. As a result, the hook 24a of the sub needle 24 is slightly tilted to the left.

On the other hand, when the rotating member 67 is rotated at the above-mentioned angle, the engagement pin 72 of the guide tube 20 is moved to the rotating member 67.
Since the guide cylinder 20 is swung around the shaft 19 and the sub needle 24 is moved slightly upward, the hook 24 is moved relative to the bent part 71a of the cam groove 71.
The surface grain B is slightly lifted by a, and the surface grain B
is in close contact with the inner surface of the hook 24a. In this state, when the secondary needle 24 is moved rearward by the action of the third cam portion 51c of the secondary needle back-and-forth moving cam 51, the front stitch B is in close contact with the inner surface of the hook 24a of the secondary needle 24, and the comb teeth Pass through 3 spaces from front to back.
Therefore, during the period of retreat from the comb teeth 3, the front stitch B does not come up from the hook 24a of the secondary needle 24 or fall off, and the secondary needle 24
The tip of the hook 24a will surely enter the normal sliding area on the left side of the comb teeth 3 without deviating to the right outside of the comb teeth 3 on the right side. That is, even if hook 24
Even if the tip of the hook 24a comes into contact with the comb teeth 3 on the right side, it is returned to the normal position on the left side of the comb teeth 3 by the circular arc surface of the hook 24a. Therefore, the operation of transferring the front stitch B to the main needle 4, which will be described below, can be performed reliably.

In this way, after the front stitch B has passed between the comb teeth 3, the rotating member 67 and the intermediate lever 73 are rotated back together, and as shown in FIG. After being slightly rotated clockwise and lowered and returned to its original position, the
As shown at b, 11a, and 11b, as the sub needle 24 retreats to the burr removal position, the burr removal operation for the obverse stitch B is performed. Subsequently, as shown in FIGS. 12a and 12b, the fourth cam portion 52 of the secondary needle rotating cam 52
Due to the action of d, the secondary needle 24 is formed behind the comb teeth 3.
The hook 24a of the main needle 4 is rotated in the direction in which it is coupled to the hook 4a of the main needle 4 as described above. and,
In a state where both needles 4 and 24 are combined, the fourth cam portion 50d of the main needle drive cam 50 and the secondary needle back-and-forth movement cam 5
Both needles 4 and 24 are moved forward together according to the cam shape of the fourth cam portion 51d of FIG.
As shown in the figure, the front stitch B on the secondary needle 24 is transferred to the main needle 4.

Thereafter, as shown in FIGS. 14a and 14b, based on the action of the fifth cam portion 50e of the main needle drive cam 50, the main needle 4 moves backward by a distance preset by the stitch adjustment dial 30. will be moved to Then, a stitch of a predetermined size is suspended from the hook 4a of the main needle 4, and the knitting of the front stitch B is completed, after which the carriage 5 is given a feed of one pitch of the main needle 4.

Effects As detailed above, according to this invention, when transferring a new stitch knitted by the opposing needles, the hooks of the opposing needles are moved from the front of the comb teeth in order to connect the hooks of the opposing needles to the hooks of the knitting needles. By configuring the opposing needle to move slightly upward and rotate slightly during the retraction period when passing through the position of the comb teeth, the stitches come into close contact with the inner surface of the hook of the opposing needle during the retraction period of the opposing needle. In addition, even if the tip of the hook of the opposing needle comes into contact with the comb teeth, the tip of the hook can be deflected to the outside of the comb teeth. The knitting needle can be reliably returned to its original operating range without any problems, and this has the excellent effect of reliably transferring stitches from the opposing needle to the knitting needle.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway right side view of a knitting machine that embodies this invention, Fig. 2 is a bottom view of the carriage, Fig. 3 is an exploded perspective view of essential parts showing the support structure for opposing needles, and Figs. Fig. 6 is a front view of the main parts of the carriage in different operating states, Fig. 7 is a line diagram showing the shape of each cam in the drive cam wheel, and Fig. 8 is a diagram showing the shape of each cam in the drive cam wheel.
4a and 14b are a plan view and a right side view of essential parts showing the knitting action in different operating states, respectively. Needle bed 1, comb teeth 3, main needle (knitting needle) 4, its hook 4a, guide cylinder 20 as a vertical movement support member, sub needle support cylinder 21 as a rotation support member, sub needle (opposed needle) 24, Hook 24a, sub needle rotation cam 5
2, the rotation member 67, the intermediate lever 73, the rotation imparting lever 76 (the sub needle rotation cam 52, the rotation member 6
7, intermediate lever 73 and rotation imparting lever 76 constitute a control member), front stitch B, back stitch A.

Claims (1)

[Scope of Claim for Utility Model Registration] A carriage 5 installed on a needle bed 1 in which a large number of comb teeth 3 are arranged at equal intervals on the front edge and a knitting needle 4 is arranged between each comb tooth 3 so as to be movable back and forth, Hook 24
a supports the opposite needle 24 which faces the hook 4a of the knitting needle 4 and which knits the stitch A knitted by the knitting needle 4 and the stitch B which is the reverse side of the stitch B, so as to be able to move back and forth and to be able to rotate slightly around the axis in the back and forth direction. and its opposite needle 24
The hook 24a is attached to the knitting needle 4 in front of the comb teeth 3.
After transferring the stitch A that has been connected to the hook 4a and suspended from the knitting needle 4 to the opposite needle 24, the connection between both the knitting needles 4 and 24 is temporarily released and the stitch A is transferred to the opposite needle 24 in front of the comb teeth 3. knit a new stitch B, and then attach the hook 24a of the opposing needle 24 to the comb teeth 3.
In this knitting machine, the new stitch B is connected to the hook 4a of the knitting needle 4 at the rear of the knitting needle 4 to transfer the new stitch B from the opposing needle 24 to the knitting needle 4. A rotary support member 21 that supports the opposing needle 24 so as to be slightly rotatable around the circumference, a vertically movable support member 20 that supports the facing needle 24 so as to be slightly movable up and down in a state substantially parallel to the axis, and a transfer of the new stitch B. In order to connect the hook 24a of the opposed needle 24 to the hook 4a of the knitting needle 4, the rotation support A control member 5 that operates the member 21 and the vertical movement support member 20 in a related manner to move the opposing needle 24 slightly upward and rotate it slightly.
2, 76, 67, and 73.