JPH0116942B2 - - Google Patents

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention relates to an end needle actuating device in a hand knitting machine,
Specifically, a knitting needle actuating device that moves the end needles of a group of knitting needles involved in knitted fabric formation to a position where they can be introduced into a specific one of two courses during pattern knitting, stitch transfer, etc. This is related to.

The present invention is applied to a carriage in which, for example, a lace knitting carriage and a carriage for pattern knitting such as two-color simultaneous knitting or tuck knitting are integrally constructed.

(Prior art) As an end needle actuating device in a carriage that guides the butts of the knitting needles involved in knitted fabric formation into two courses to knit patterns or transfer stitches, the
A technique is known, as seen in No. 59-28704, which consists of a rest needle sensing section and an end needle actuating member interlocked therewith.

In recent years, lace knitting carriages that create a hole pattern on the knitted fabric, two-color simultaneous knitting knitting that knits two colors of knitting yarns at the same time, and carriages that create pattern knitting such as tatsuku knitting have all been integrated. Often seen. However, with this type of carriage, for example, in two-color simultaneous knitting, the end needles are moved forward to prevent vertical cracking of the knitted fabric, which separates from the base thread knitting part and the colored thread knitting part in the ale direction. Colored yarn must be supplied from the yarn opening, and in stitch transfer during lace knitting, if the end needle is used as a stitch transfer needle, stitch transfer will not occur if the adjacent knitting needle is at the rest position. As a result, dropped stitches occur, and it is necessary to move the end needle backwards to prevent this. For these reasons, this type of carriage is equipped with separate rest needle sensing units and end needle actuators in order to move the end needles to the required positions for each of the two courses depending on the pattern to be knitted. Requires an end needle actuator consisting of several parts.

(Problems to be Solved by the Invention) To move the end needles of a group of knitting needles used to positions where they can be introduced into a specific course required for each of two courses during pattern knitting or stitch transfer. Providing individual end needle actuating devices causes problems in all aspects such as manufacturing, cost, operation, etc. as the carriage structure and cam arrangement for switching the individual devices are complicated and large.

The object of the present invention is to use a single device to arrange end needles during pattern knitting and stitch transfer, without providing a separate end needle actuating device in the carriage, and to achieve a satisfactory knitting state. be.

[Structure of the invention]

(Means for Solving the Problems) In the means of the present invention, the butts of the knitting needles are advanced by a forward cam after knitting is completed. That is, immediately before the knitting needle is introduced into the reduction cam, in relation to the dormant needle detected by the dormant needle sensing unit that senses the dormant knitting needle that is adjacent to the end needle of the group of knitting needles in use and does not participate in fabric formation, The butts of the end needles of the group of knitting needles used are guided to the front passage of the lowering cam passage. Thereafter, a switching cam is disposed outside the front passage to form a needle selection position derivation passage and a knitting preparation position derivation passage, and by switching the switching cam, a needle selection position derivation passage and a knitting preparation position derivation passage are arranged. The end needles of the required group of knitting needles are guided to the needle selection position and are retreated to the knitting preparation position during lace knitting.

(Example) In the figure, reference numeral 1 denotes an elongated needle bed in which a large number of knitting needles 2 and comb teeth 3 are alternately arranged at equal pitches in the longitudinal direction. The knitting needles 2 are movable in the front-rear direction and the up-down direction, and are always placed in an upper position in a substantially horizontal state by the elastic member 4.
Reference numeral 5 denotes a plurality of handle plates having a large number of knitting needle locking pieces (not shown) on the upper edge thereof, and the locking pieces can lock a predetermined knitting needle 2 downward. Reference numeral 6 denotes a needle selection card inserted and supported on the outer periphery of the card feed shaft 7, and the signal reading member 8 is sorted into two positions, upper and lower, depending on the presence or absence of a signal hole provided on the card 6 (not shown). Deploy. A threaded rod 9 in the shape of an elongated bar with a helical groove provided at the retreating portion of the needle bed 1 is attached to the knitting carriage 1 mounted on the needle bed so as to be slidable left and right.
The product rotates in the opposite direction as it slides. As a result, only the signal reading member 8 located above comes into contact with the conical portion through the vertical movement of the conical rod 12 by the cam 11 provided on the threaded rod 9. Then, a predetermined handle plate 5 is moved to an operating position via an operating rod 13.

Next, the configuration of the carriage 10 will be explained.

14 is the base plate of the carriage, and the front cam group 1 is on the bottom surface.
5 and a rear cam group 16 are arranged horizontally. A resting needle butt passage 17 is formed behind the rear cam body 16 for passing the butt 2a' of the resting knitting needle 2' disposed at the rear resting position. Reference numeral 18 denotes a pair of left and right knitting cams, and between and near the two knitting cams 18 is a cam group 1 consisting of a large number of switchable cams.
9 are arranged, and by switching these as necessary, various patterns such as two-color simultaneous knitting and tuck knitting can be knitted.

In addition, a lace cam group 20 for knitting lace is arranged on the left and right outer sides of the carriage, and can be combined with the cam group 19 for knitting the previous pattern in various combinations, and a lace that can be replaced at the front edge of the carriage base plate 14. Lace knitting is performed using the knitting aid 21. In addition, 22 is a pattern knitting aid when knitting a pattern. Reference numeral 23 denotes a lowering cam for selecting needles, which is formed on the outside of the double knitting cams 18 and in front of the rear cam body 16 so as to be connected to the rear end portions of the knitting cams 18, and is approximately in the shape of an inverted mountain. They are arranged in pairs on the left and right. Although the butts 2a of the knitting needles 2 guided into the passage are sequentially moved downward for a certain period of time and then released, each knitting needle 2 is temporarily held in a downward position against the elastic force of the elastic member 4. It's getting old. Therefore, among these lowered knitting needles 2,
With the handle plate 5 moved to the operating position, the knitting needle locking piece (not shown) provided on the upper edge is locked to the locking piece, and as the carriage 10 slides, the lowering cam Even after being released from the lowering action of 23, it remains locked in its lower position. Furthermore, the needle locking piece of the handle plate 5 disposed in the inactive position is not locked by the locking piece and is released from the pressing action of the pressure plate cam 23, and then the elastic member 4 It is moved back to the upper position by the force. Reference numeral 24 designates a selection cam plate disposed on the outside of the lowering cam 23, on which inclined cam portions 24a and 24b are formed, and the lower end edge of the inner inclined cam portion 24a is connected to the butt 2a of the knitting needle 2 held at the lower position. It is said to be at a height that allows it to pass through as is. Therefore, the butt of the knitting needle 2 placed at the upper position enters the knitting preparation position lead-out passage D formed by the inclined cam part 24a without passing through, and is moved backward along the inclined cam part 24a. , the needle is selected to the knitting preparation position. As for the knitting needle 2 held in the lower position, the handle plate 5 returns from the working position to the non-working position immediately after passing through the inclined cam portion 24a, and the locking piece releases the knitting needle 2 from the locked state. Therefore, the knitting needle 2 is returned upward by the elasticity of the elastic member 4, and its butt 2a moves forward along the inclined cam portion 24b, and is selected to the front position E. (The above-mentioned needle selection mechanisms are all
148257 and 1983-148258. ) Next, referring to the end needle actuating device, 25 is a rest needle sensing cam provided in the publication cam body 16;
Normally, the rear end is held in the rest needle butt passage 17 by the spring 26 against the walls 27a, 27b of the rear cam body 16.
It can slide back and forth along the , and is located at the rear. 28
Previously, the reduction cam passage A consisting of the reduction cam 23
The needles at both ends of the group of knitting needles used are always sorted into the front passage B.

Reference numeral 29 denotes an end needle switching cam, which is provided outside the front passage B and near the front of the inclined cam portion 24a of the selection cam plate 24, and moves the butt 2a guided to the front passage B by the knitting needle operating cam 28 to the needle selection preparation position. Derivation passage D
(position with imaginary line in Figure 1), position where needle selection position is guided to guide channel C (solid line position in Figure 1), and switch knob 30 provided on the top surface of carriage base plate 1. It is provided so that it can be switched.

Next, the effect will be explained. When performing two-color simultaneous knitting among various pattern knittings with this type of carriage, the end needle switching cam 29 is set to the solid line position in FIG. 1. In this case, when the end needle butts of the knitting needle group 2 enter the lowering cam passage, they are guided to the front passage B by the action of the rest needle sensing cam 25 and the knitting needle actuation cam 28. (FIG. 2A ``Then, this knitting needle butt 2a'' is guided to the needle selection position E through the outer needle selection position derivation passage C because the end needle switching cam 2a is in the solid line position.

In addition, when performing lace knitting, the end needle switching cam 29
is set at the virtual position shown in Figure 1. When knitting is carried out in this state, the end needle butts 2a'' are guided to the front passage B by the action of the idle needle sensing cam 25 and the knitting needle actuating cam 28, as in the case of simultaneous two-color knitting, but the end needle switching cam Since 29 is at the virtual line position, it is guided to the rear needle selection preparation position deriving passage D and is guided to the needle selection preparation position F.

In addition, the idle needle sensing cam provided inside the rear cam body in the embodiment slides forward when activated. A directional sliding type arrangement is also possible.

〔Effect of the invention〕

As stated in the problem of the present application, an end needle actuating device that is involved in knitting during pattern knitting, a resting needle sensing unit that retreats a group of knitting needles to a knitting preparation position during lace knitting, and an end needle actuating unit. The provision of redundant needle actuation positions on a lace-integrated carriage is associated with various disadvantages.

That is, in a state of use, one end needle actuating device must be switched so that it is not in use, so a complicated switching device is required. It is difficult to provide these devices redundantly in a knitting needle butt needle selection device consisting of an advance cam, a reduction cam, a needle selection cam, etc. In the present invention, the end needles of the knitting needle group used are
Regardless of the knitting method, the conventional end needle actuating device consists of a stop sensing part and an end needle actuating part that only move the butt to the front passage of the rolling cam passage, and an end needle switching cam is provided outside the front passage. Therefore, by switching this end needle switching cam, the desired purpose can be easily achieved, and a simple carriage configuration with an integrated lace can be achieved.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the end needle actuating section of the present invention before operation, as seen from below the carriage, Fig. 2 is an explanatory diagram of Fig. 1 during operation, and Fig. 3 is a cross-sectional view of the operation of Figs. 1 and 2. , FIG. 4 is a sectional view of the main parts of the carriage, FIG. 5 is a plan view of FIG. 4, FIG. 6 is a bottom view of the carriage equipped with a pattern knitting aid, and FIG. FIG. 1... Needle bed, 2... Knitting needle, 4... Elastic member, 2
3... Press down cam, 24... Needle selection cam plate, 25...
Pausing needle sensing cam, 28...Knitting needle operating cam, 29...
...End needle selection switching cam.

Claims (1)

[Claims] 1 In a carriage that guides the butts of a group of knitting needles involved in knitted fabric formation into two courses by sliding on the needle bed to perform pattern knitting and stitch transfer, the slide causes the butts of the group of knitting needles on at least one side of the group of knitting needles to be guided by sliding on the needle bed. In connection with the dormant needle sensing section that detects dormant needles that are not involved in the formation of adjacent knitted fabrics, and the detection of dormant knitting needles by the dormant needle sensing section, the butts of the group of knitting needles to be used are pressed down after knitting is completed to detect the needles. Immediately before locking or not locking with the hook-shaped locking plate of the needle selection plate in the floor,
Equipped with a switching cam that switches and guides the end needle outside the front path of the lowering cam path to the needle selection position deriving path during pattern knitting, and to the needle selection preparation position deriving path during lace knitting, by the operating part of the resting needle sensing unit. An end needle actuating device for a hand knitting machine that can selectively switch end needles for each path during pattern knitting and lace knitting.