JPS5853101B2 - Control device for card feeding mechanism of hand knitting machine - Google Patents

Description

[Detailed Description of the Invention] This invention is a method in which needle selection information recorded on an indicator such as a pattern card is stored in a storage circuit by a detection means, and the stored information is read out during knitting by movement of a carriage to perform needle selection. In a knitting machine, regarding a control device for a card feeding mechanism that sequentially moves display stages of indicator arranged corresponding to each row of stitches to a detection position of a detection means, in particular, the pattern of the row currently being knitted at the time of knitting. This is to allow the operator to visually check the status.

Embodiments of this invention will be described with reference to the drawings.

A plurality of slots (not shown) along the front and back are arranged at equal intervals in the longitudinal direction on the needle bed 2 provided on the front side of the oblong hand knitting machine main body 1, and a butt (not shown) is inserted into each slot. Accordingly, knitting needles (not shown) each projecting upward are provided below the needle bed 2 so as to be movable back and forth, and each predetermined number of these knitting needles is set as a selected needle unit.

A carriage 3 is placed on the needle bed 2 so as to be movable in its longitudinal direction, and the lower part of the carriage 3 has electromagnets S1 and 82 (FIG. 3) each actuated by an electric signal at the rear of the lower part of the carriage 3 in the moving direction. Separate needle means (not shown) are provided for each,
Due to this action, as the carriage 3 moves, the working needles located at the timing positions within the longitudinal range of each slot are moved back and forth to form a stitch.

Inside the cover 4 behind the needle bed 2, a support shaft 5 to which sprockets 6 are individually fixed at both ends in the axial direction is rotatably supported on the machine frame along the longitudinal direction of the main body 1, and will be described later. It is connected to a motor M (FIG. 3) capable of forward and reverse rotation, and rotates or stops in one direction or the opposite direction in conjunction with the forward and reverse rotation or stop of the motor M.

A pair of guide pieces 7 facing each other at a distance from each other are fixed to the outer periphery of both sprockets 6 to the machine frame, and elongated holes 8 and 9 passing vertically through the upper surface of the cover 4 along the longitudinal direction are spaced apart from each other in the front and rear. Form parallel.

The pattern card 10 has graduation lines written vertically and horizontally so that the first stitches formed in the horizontal direction are at least the same number as the number of needles in one selection unit, and are arranged in a plurality of steps corresponding to each knitting step. A large number of holes 10a that engage with the pins of both sprockets 6 are formed in parallel, and each square is colored with a dark black color to form a colored portion 10b and a transparent portion 10c.
Insert one of the upper and lower ends from the outside of the long hole 8, extend it across the sprockets 1 to 6, pull it out to the outside of the long hole 9, and lock the upper and lower ends with a locking piece (not shown). It can be made into an endless shape.

A thin plate-like upright part 11 is provided along the front edge of the elongated hole 8 and projects upward, and the upright part 11 is penetrated in the front and rear directions so that each row of information on the pattern card 10 can be viewed directly from the front of the main body 1. A through hole 12 is formed.

Inside the cover 4, the light emitting body 13 and the light receiving body 14, which face the front and rear of the card 10, constitute a detection means for detecting the needle selection information of the card 10, and this detection means is equipped with a motor N (which can rotate in forward and reverse directions). 3), moves between both ends of the card 10 in one direction or in the opposite direction along the row direction, and is locked at a position opposite to one end or the other end of the card 10,
During the movement, the photoreceptor 14 transmits the light from the light emitter 13 to the card 10.
Pattern signals having different levels of output are generated in relation to the reception of light through the transparent portion 10c or the painted portion 10b.

In FIG. 3, A and B are pulse generation circuits that generate sampling pulses and timing pulses, respectively, which are described in, for example, Patent Publications No. 100357 and 100358 of 1975, and the sampling pulses are generated from the photoreceptor 14. The timing pulse is used to assign addresses to the knitting needles in each needle selection unit when storing the pattern signals as information, and the timing pulses are used to assign addresses when reading out the address information stored in relation to the movement of the carriage 3. It is for specifying.

C is a state detection circuit that detects the movement, stoppage, and direction of movement of the carriage 3 and generates signals for each state.

D is a position detection circuit that detects the left and right positions of the detection means and generates a signal.

The electrical system of this hand knitting machine is RAM (RANDOM AC
CESS MEMORY).

ROM (REAI) ONLY MEMORY), CPU
The operation is controlled by a well-known microcomputer MC having (CENTI (AL PROCCESERUNIT)), and the ROM stores fixed information for controlling the following operations.

1) When the moving direction of the carriage 3 is reversed to one direction or the opposite direction, the motor N for moving the detection means is rotated forward or backward in relation to the generation of a signal from the state detection circuit C, and the photoreceptor is rotated forward or backward. The horizontal signal from 14 is sent to the oscillation circuit A.
Addressed by sampling pulses from RA
Store in M.

n) When either the left or right position signal is generated from the position detection circuit after the operation in I), the motor N is stopped and the motor M is rotated in the forward direction to pass through the corresponding display stage of the card 10 detected by the detection means. The support shaft 5 is rotated so as to move to a position facing the hole 12.

■) After the operation in I), the addressed information is read out using the timing pulse from the oscillation circuit B, and based on that information, the electromagnet S1 or S2 that operates the needle selection means at the front in the movement direction of the carriage 3 is energized or deenergized. Generate a signal.

■) When the carriage 3 completes one stage of knitting and stops on one side or the other side of the needle bed 2, the motor M is rotated in the opposite direction in response to the signal generated from the status detection circuit C, and the motor M is opposed to the through hole 12. The support shaft 5 is rotated until the display stage next to the relevant display stage of the card 10 is moved to the detection position of the detection means.

This invention has the above-mentioned configuration, and when the carrier □3 is moved in one direction from one end of the needle bed 2, the motor M rotates forward in the initial stage of the movement, moves the detection means in one direction, and the photoreceptor 1
The one-stage pattern signal from 4 is addressed by the sampling pulse and stored in the RAM.

When the memorization is completed, when the carriage 3 continues to move in one direction, the electromagnet S1 of the needle selection means at the end of the movement direction is energized or deenergized based on the information read by the timing pulse, and the operating hand located at the time position is set to the pointer position. Select needles before and after floor 2.

When the memorization is completed, the motor M rotates in the forward direction to move the memorized display stage of the card 10 until it faces the through hole 12, and the operator can visually see the needle selection information of the stage currently being knitted from the front of the hand knitting machine. Make it possible to confirm.

When one row of knitting is completed and the carriage 3 stops on one side of the needle bed 2, the motor M rotates in the opposite direction to detect the next display row of the display row facing the through hole 12 (the row where knitting has been completed). Move to the detection position.

When the carriage 3 is reversed in the opposite direction, the motor N rotates in the reverse direction at the beginning of its movement, moves the detection means in the opposite direction, and stores the pattern signal in the RAM in the same manner as described above.

When the carriage continues to move in the opposite direction, the electromagnet S2 of the needle selection means at the front in the movement direction is energized or deenergized to select a needle based on information read by the timing pulse.

When the storage in the RAM is completed, the motor M rotates in the forward direction to move the corresponding display stage of the card 10 to face the through hole 12 in the same manner as described above, and when the carriage 3 stops in the opposite direction, the motor M is rotated in the reverse direction. and moves the next stage to the detection position of the detection means.

In this embodiment, a motor is used as a means for moving the detection means and as a means for rotating the support shaft 5, but it may be operated by other electrical actuating means or mechanical actuating means that operates in conjunction with the carriage. You may also do so.

Further, in this embodiment, the card 10 is coated in the application section 10b.
Information is detected by coloring the transparent part 10c, and by forming a hole in each square of the card 10,
The light receiving body 14 may detect the information by receiving or blocking the light from the light emitter 13.

Furthermore, other detection means may be used instead of the photosensitive means of this embodiment.

In this embodiment, information is stored when the carriage is reversed, and the stored information is read out when the carriage is subsequently moved.Although this embodiment has been described using a so-called on-site detection hand knitting machine, knitting is performed by moving the carriage in one direction. In a so-called next-stage detection hand knitting machine, the detection means is activated in the latter half of the movement after the completion of the movement to store the next stage information, and the stored information is read out when the carriage next moves in the opposite direction -\. When the card 10 is reversed, the motor M is rotated in the normal direction so that the card 10 faces the through hole 12, and after the motor M is reversed so that the next stage moves to the detection position of the detection means when the formation of that stage is completed, the detection is performed. The means may be actuated.

As described above, according to the present invention, the display stage of the indicator whose needle selection information is detected and stored by the detection means before knitting is moved to a position where it can be seen directly from outside the machine frame during knitting, and the detection means detects and stores the needle selection information. By controlling the card feeding mechanism to move the next display stage of the indicator to the detection position of the detection means before performing the detection operation, the operator can move the display stage corresponding to the stitch stage currently being knitted during knitting. Since knitting work can be performed while checking visually, if a knitting error occurs, it can be immediately discovered and corrective work can be carried out immediately, which has the effect of improving work efficiency.

In addition, since the actual display stage is moved to a position where it can be seen directly,
Since no other visible display means such as marks are required, indicators such as cards can be manufactured easily and at low cost, and the indicator is colored with a pattern to distinguish between colored parts and transparent parts. The present invention has the advantage that it can be used even on objects for which display means such as the mark described in Utility Model Publication No. 12526 of 1978 cannot be formed.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the hand knitting machine of this embodiment, Fig. 2 is a side sectional view of the card feeding mechanism, Fig. 3 is the electric circuit, Fig. 4 A is a timing chart of this embodiment, and the opening is the next stage. It is a timing chart in a hand knitting machine for detection. In the figure, 3 is a carriage, 10 is a pattern indicator, 5.6
are transport means, 13, 14. N is a detection means, and 1L12 is a visual means.

Claims (1)

[Claims] 1. A carriage with a needle selection means mounted movably in one direction or the opposite direction on the needle bed, and information for operating the needle selection means made visible for each stitch of each knitting of the knitted fabric. An indicator, a transfer means that supports the indicator movably in the knitting direction and is disposed on the main body or a carriage, and the indicator can be moved and locked in one or the opposite direction between three positions spaced apart in parallel to the stitch direction. A detection means that is placed inside the machine frame of the main body or carriage and detects information on one stage of the indicator during movement, and detects information on one stage of the indicator visually from the front of the hand knitting machine and outside the machine frame of the main body or carriage. a visual means provided on the machine frame at a position farther away from the means in the moving direction of the indicator, a first operation for storing information detected by the detection means, and a second operation for operating the needle selection means in response to the stored information. a storage means that alternately repeats the operation; and a stage of the indicator to be stored at the detection position of the detection means during the first operation of the storage means, and the stage stored at the time of the second operation of the storage means is moved to the viewing means. A control device for a card feeding mechanism of a hand knitting machine, comprising a control means for operating a transfer means to move a next stage of an indicator to a detection position before the locking storage means performs the next first operation.