JPS5928066Y2 - knitting machine scanning device - Google Patents

Description

[Detailed description of the invention] The present invention is a knitting machine that converts information such as a knitting pattern representing a pattern to be knitted, which has been recorded on a predetermined recording medium such as a card, into electrical signals by scanning with a scanning member. The purpose of this scanning device is to be able to perform the above-mentioned scanning automatically, thereby reducing reading errors, simplifying the transport structure of the information recording medium, and having the structure as a scanning device that performs automatic scanning. It is an object of the present invention to provide a scanning device which can be provided simply and inexpensively, has a reliable running operation of a scanning member, and is free from erroneous scanning.

In the following, the present invention will be explained in detail with reference to an illustrated embodiment applied to a home-use hand knitting machine.

First, the overall outline of the hand knitting machine to which the present invention is applied will be explained with reference to Fig. 1.The knitting machine main body X has its needle bed
On the rear side of 1, a part of the control panel X2 is exposed, and by inserting a composition program card 1, which is a composition information recording medium, into the part facing the control panel X2, the composition program card 1 can be loaded so as to be automatically transferred, and also displayed on it. A scanning device A of the present invention is installed, which is equipped with a scanning member (not shown in FIG. 1) that optically scans recorded information, and a needle bed
Although not shown, on the back side of the base plate 2 of the carriage Y that runs on the needle bed A pair of left and right knitting needle sorting mechanisms, one of which effectively sorts the rows of knitting needles back and forth according to the traveling direction of the carriage Y using electromagnetic force, are arranged at a predetermined length apart on the left and right sides.

In the scanning device A, the scanning member is a carriage Y.
By automatically scanning the information recorded on the card 1 horizontally and linearly in relation to the running of the vehicle, a corresponding electrical signal is output, and the subsequent processing of the electrical signal is performed electronically. Further, power is supplied to the electrical components of the pair of left and right knitting needle sorting mechanisms by a cord 4 that is passed through a tension member 3 that applies tension to the knitting yarn, for example. Carriage Y
By moving the knitting putter 77 back and forth from side to side, the knitting needles can be selected in accordance with the knitting putter 77.

Now, the mechanical configuration of the scanning device A according to the present invention will be specifically explained with reference to FIGS. 2 to 5.

The entire scanning device A is installed in a frame 5 below the control panel Sprocket wheels 67.6r, which are feeding members, are mounted on the left and right sides of 5 so that they can rotate together with a shaft 7.

The sprocket wheels 61, 6r have sprockets 6' that fit into the left and right perforations 1' of the organization program card 1 protruding from the outer circumferential surface at a constant interval. , the card 1 is inserted into the pattern card slot 9 facing on the control panel X2 between them and a card guide plate 8 having a U-shaped cross section arranged below the perforation. By fitting the sprocket wheel 1' to the sprocket 6', the sprocket wheel 61°6r can support the card 1 in a U-shaped bent state, and in this supported state, the The card 1 can be transferred in the direction in which the perforations 1' are arranged by being rotated by a pulse motor a which is a driving source of the mechanism.

That is, the sprocket wheel 613.6r is linked to the pulse motor a by having the gear 10 fitted on the shaft 7 of the sprocket wheel 613.6r meshing with the gear 11 fitted on the shaft of the pulse motor a.

Therefore, the pulse motor a is capable of forward and reverse rotation, and the forward and reverse directions of the sprocket wheels 6A' and 6r are determined by whether the pulse motor a is driven forward or backward, and thereby whether the card 1 is sent in the forward direction or not. (Bottom side of Figure 3) This determines whether to send in the opposite direction.

In addition, a part of the shaft 7 is provided with a window hole 12 of the control panel X2.
A sliding wheel 13 projecting upward through the control panel X2 is fitted, and by hooking a finger on the sliding wheel 13 on the control panel X2 and turning it, the card 1 can also be transferred manually. .

As mentioned before, the card 1 is inserted through the pattern card slot 9 on the control panel It is constructed by arranging it so that an appropriate gap is created between the upright portion 15' at the rear end and the front surface of the raised portion 14, and the card 1 is inserted through the insertion opening 9. The card 1 which has been bent along the guide plate 8 and entered below the control panel X2 is led out to the outside through an outlet 16 (FIG. 4) formed at the rear end of the control panel X2.

A horizontal reference line 15'' is placed on the upright portion 15' of the transparent plate 15.
This reference line 15'' is used as a reference when positioning the card 1.

Next, a traveling drive mechanism for automatically traveling the scanning member C to scan the card 1 horizontally and linearly will be described.

Two upper and lower guide rods 17 and 18 are horizontally suspended in parallel to each other on the frame 5, and a scanning member C is mounted on these so as to be able to slide left and right.

That is, the scanning member C has left and right through holes provided in the main body of the running body 19 slidably fitted into the upper guide rod 17, and a bobbin integrally provided on the lower side of the running body 19. 20 is slidably fitted to the lower guide rod 18.

A coil 21 is wound around the bobbin 20, and a horizontally long permanent magnet 22 is placed slightly below the lower guide rod 18 in parallel thereto.

The entire length of the upper side of the permanent magnet 22 is, for example, an N pole, and the entire length of the lower side is an S pole.The lower guide rod 18 is made of a magnetic material, and when a current is passed through the coil 21, the current is , the permanent magnet 22 crosses the magnetic field that is constantly created, and the traveling body 19 is moved by the magnetic force acting between them.
Therefore, depending on the direction of the current flowing through the coil 21, the scanning member C automatically moves to the left or right along the guide rods 17 and 18 as a guide means.

That is, the coil 21 and the permanent magnet 22 are
This constitutes a type of linear motor with 2 serving as a stator.

Therefore, the scanning member C is normally located at the left stroke end (solid line position in Figure 3), but in relation to the travel of the carriage Y (for example, when the travel of the carriage Y is reversed), the left stroke By automatically supplying enough current to the coil 21 to run from the end to the right stroke end (position indicated by the chain line in the figure) and then immediately feedback from the right stroke end to the left stroke end, the left and right The vehicle is designed to perform one round trip without interruption.

A reversal detection limit switch 23 is provided at the right end of the frame 5, which corresponds to the stroke end on the right side with respect to the scanning member C, while a reversal detection limit switch 23 is provided on the upper guide rod 17 at a position corresponding to the left stroke end of the scanning member C. Although the stopper 24 is fixed, the guide rod 1
T is horizontally mounted on the frame 5 so as to be able to slide left and right, and is biased rightward by a spring 26 at its left end, so that the scanning member C is pressed against the stopper 24 during backward movement (leftward movement). However, the impact is buffered by the spring 26, thereby preventing reaction (rightward movement) when the stroke end on the left side is reached.

As described above, the running body 19 includes the coil 21 and the permanent magnet 22.
The moving body 19 slides along the guide rods 17, 1B due to the left or right horizontal component magnetic force acting between the moving body 19 and the guide rods 17, 1B. 19 and the guide rods 17 and 18, the running body 19
If there is a gap large enough to cause the coil 21 and the permanent magnet 22 to wobble, or if the vertical component magnetic force acting between the coil 21 and the permanent magnet 22 is not uniform in the left and right travel of the traveling body 19, the traveling body 19 and the guide rods 17, 18 may There is a risk that the frictional force between the two wheels will not be uniform, making the vehicle run jerky or stopping midway.

Therefore, in order to prevent this, small permanent magnetic forces 27 are applied to the running body 19, which generate a vertical repulsion force between them and the permanent magnets 22 serving as the stator, so that a constant vertical force is constantly applied to the running body 19.゜27' is fixed.

These permanent magnets 27, 27' are, for example, the permanent magnets 2
If the upper side of 2 is the north pole, the lower side is the north pole.

As mentioned above, when the traveling body 19 returns to its original position, the spring 26
However, apart from this, the traveling body 19 is also subjected to a braking action by magnetic force just before returning to the original position, while at the same time it is accelerated by the magnetic force when starting to leave the original position. It is designed to be affected.

That is, as shown in FIG. 3, the permanent magnet 27 provided on the left side of the frame 5 and on the left side of the traveling body
A permanent magnet 40 that repels the permanent magnet 40 is mounted by a mounting member 41 at a height slightly above the permanent magnet 27 when the traveling body 19 faces the original position.

When the traveling body 19 moves a little away from the original position, it is accelerated by the repulsive action of the left permanent magnet 27 against the fixed permanent magnet 40, and while the starting movement is extremely quick, just before returning to the original position, The traveling body 19 is braked by the above-mentioned repulsive action, and the present invention focuses on this configuration.

On the rear side of the scanning member C, as shown in FIG. 4, the card 1 inserted from the pattern card insertion slot 9 as described above is vertically positioned at a height below the control panel X2. In order to scan one side of the card, a reading element,
That is, a so-called photoelectric sensor d is installed, which consists of a light-emitting element and a light-receiving element that receives reflected light reflected from the card surface and converts it into an electrical signal.

As the scanning member C travels, its photoelectric sensor d optically scans the surface of the card horizontally and linearly, and hereinafter the photoelectric sensor d will be referred to as a scanning sensor.

Note that the card 1 allows the scanning member C to move forward (rightward) and backward (
Scanning is performed by the scanning sensor d in both strokes (left row), but the electrical signals associated with the scanning of the reciprocating stroke are such that only those associated with the reciprocating stroke of the scanning member C are taken out as valid. It has become.

Next, card 1 will be explained with reference to Figure 3. It is semi-transparent, and the perforations 1' on the left and right sides
On the white surface in between, a knitting pattern recording section 1p, which is a part for recording the knitting pattern, and
The function mark entry field 1f, which is the organizing function information recording area on the right side, that is, the area where the function mark is recorded, is set to a color that is the same as the emission color of the light emitting element of the scanning sensor d and which the light receiving element does not discriminate (for example, the light emitting element is red). This is done by displaying the grid dividing lines in red (in the case of using light emitting diodes) in advance using an appropriate display method such as printing.

The above-mentioned knitting pattern entry field 1p has vertical lines among the grid division lines that constitute it, division lines between stitches, and horizontal lines which are division lines between knitting rows, and below the margin, The numbers representing the stitches are displayed in the same color as the grid dividing lines.

More specifically, in the knitting pattern entry field 1p, one minimum section, that is, one entry grid corresponds to one stitch,
The horizontal arrangement, or row, corresponds to one knitting needle, and the vertical arrangement, or row, corresponds to a knitting row (wale), and n horizontal rows of stitches are considered as one group. When knitting so-called unit patterns, the vertical line at the left edge and the vertical line separated by n vertical lines to the right are regarded as boundary lines, and the picture (knitting pattern) corresponding to the unit pattern to be knitted is drawn between them. A pattern) is drawn solidly in black, for example, as shown in the figure, using a suitable writing instrument such as a pencil.

For example, when knitting a unit pattern of 48 horizontal stitches by selecting 48 knitting needles as a unit of one group, the range from the leftmost vertical line to the 48th vertical line It is meant to draw a picture inside.

At this time, as long as the outline of the picture is within the above range, the inside of the picture may be filled in solidly without filling in the grids one by one.

This is because the reading is performed by sampling each witness grid, and this will be explained in detail later.

Further, in the function mark entry field 1f, the horizontal line is on the same line as the horizontal line of the knitting pattern entry field 1p, the vertical line is parallel to the vertical line of the knitting pattern entry field 1p, and the function mark entry field is The columns (vertical arrangement) of the entry lattice in 1f are arranged on the same line as those in the knitting pattern entry field 1p, and there are the same number of rows (horizontal arrangement).

For example, the number is 4 compared to 60 in the knitting pattern entry field 1p.

The function mark entry field 1f is used to mark (for example, fill in black) any entry grid when performing a required function operation, and in this example, there are a total of four witness grid columns (vertical The left column is for programming the forward direction of card 1, and the column to the right is for programming the reverse direction of card 1. The other two columns are for programming necessary function operations other than card feeding, such as thread exchange and starting and ending needle selection operations.

As mentioned above, in the knitting pattern entry column 1p of the card 1, the knitting pattern representing the unit pattern to be knitted is drawn solidly, and the scanning sensor d of the scanning member C normally writes this. Horizontally for each grid row -
It scans in a straight line, and the electrical signal associated with one stage of scanning is a square wave corresponding to the form of the knitting pattern in one stage of the grid, that is, the form of one horizontal scan of the knitting pattern. If there is, the electrical signal obtained by scanning does not have a one-to-one correspondence with the knitting needle to be selected, and the function mark entered in the function mark entry field 1f is also detected by the scanning sensor as with the knitting pattern above. d and become electrical signals in the same electrical system, but these two types of electrical signals are separated from each other, and the electrical signals related to reading the knitting pattern correspond to the knitting needles in a one-to-one relationship. The electrical signals that are converted into binary electrical signals and are used to read the function marks are also separated for each witness grid row (vertical row) in the function mark entry field 1f. The sampling mechanism used will be explained.

The frame 5 is located behind the traveling body 19 of the scanning member C.
, the horizontally long plate-shaped linear encoder 28 is connected to the guide rod 17.
, 18 and horizontally mounted.

The linear encoder 28 creates a predetermined number (60 in this example) of knitting pattern sampling slits 28p in each of the knitting pattern entry fields 1p for sampling the knitting patterns drawn in the knitting pattern entry fields 1p on the card 1. A predetermined number (four in this example) of function mark sampling slits 28f are bored in one-to-one correspondence with the witness grid rows, and a predetermined number (four in this example) of function mark sampling slits 28f are provided in the function mark entry field. The holes are drilled in one-to-one correspondence with each witness grid row of 1f.

On the other hand, on the rear side of the traveling body 19 of the scanning member C, there is a photoelectric sensor for optically reading both of the two sulins 28p and 28f, that is, a light emitting element that illuminates the front surface of the linear encoder 28 and its reflected light. A sampling sensor e consisting of a light receiving element that receives light and converts it into an electrical signal is attached.

As the scanning member C travels, the sampling sensor e outputs a pulse corresponding to the sulins h28p and 28f, that is, a sampling pulse, and the sampling pulse is the same as the electrical signal related to the scanning of the scanning sensor d described above. As shown in FIG. The sampling pulses for the function marks and the sampling pulses for the function marks are separated from each other.

Thus, although the electrical signals associated with one-stage scanning of the knitting pattern entry field 1p and the function mark entry field 1f are sampled for each witness grid, it is possible to ensure that such sampling is accurate for each witness grid in relation to the card 1. The card guide plate 8 has slits 8p and function mark entry fields corresponding one-to-one to each witness grid row in the knitting pattern entry field 11p along the scanning line of the scanning sensor d. A slit 8f corresponding to each witness grid row 1f is provided in a one-to-one relationship, and the scanning sensor d picks up marks on the card 1 for each slit through these slits. It has become.

Therefore, the electrical signals related to reading the knitting pattern are
Each bit corresponds to each witness grid and therefore one knitting needle,
Also, depending on whether each witness grid is marked or not, the binary number “
It is converted into a 60-bit binary electrical signal that determines whether it is ``1'' or ``0'', and all bits are stored in a predetermined memory sequentially from left to right.

Then, the stored binary electric signals are read out sequentially in accordance with the traveling timing of the carriage Y, and are applied to one of the electromagnets that should be activated in the mechanism for moving the knitting needles back, which is installed on the back side of the carriage Y. The code is supplied through the code 4, whereby the knitting needles are selected according to the content of each bit of the read binary electric signal (either "l" or "0"). The number of bits is determined by the number set with the needle selection unit number setting dial 29 provided on the control panel X2 (turning the dial 29 controls the readout circuit of the memory that stores the binary electrical signal. ), the set number of bits are read out repeatedly, and the number of needle selection units is determined by this.

Next, the electrical configuration of the scanning device A will be explained with reference to FIGS. 6-7.

When knitting is performed by operating the carriage Y, an electric signal obtained by detecting the reversal of the carriage Y or detecting that the carriage Y approaches a predetermined member of the needle bed X1 is detected. The electric signal obtained by
A card feeding command signal is output as shown in FIG.
drives the pulse motor a, and the card (2) is transported one step at a time in a direction instructed by a circuit 33 that outputs a signal corresponding to the card feeding direction.

When the one-stage transfer of the card 1 is completed, that is, when the pulse output from the pulse generator 31 is completed, the flip-flop 34 is set as shown in FIG. The coil 21 is biased so that the traveling body 19 moves to the right (biasing in the forward direction), and as a result, the scanning member C moves to the right and reaches the reverse position, which is the right stroke end, and the limit switch 23 is activated. When turned on, the flip-flop 34 is reset by the limit switch 23 outputting the pulse shown in the figure (■), while the timer 36 consisting of a monostable multivibrator etc. operates, and the output V of this timer 36 causes scanning. The member drive circuit 35 biases the coil 21 to move the scanning member a to the left (biasing in the backward movement direction).

The operating time of the timer 36 is set to a time that is sufficiently longer than the time required for the scanning member C to move leftward from the reversal position (right stroke end) to the home position (left stroke end). Even after reaching the original position, member C is given a force to move further to the left, and the reaction when it reaches the original position causes it to move to the right, perform a slight double scan, or stop at a point outside the original position. I'll make sure this doesn't happen.

It should be noted that the period from the start of card feeding to the end of the one-stage scanning force by the scanning member C, specifically, the period from when the card feeding command circuit 30 outputs the card feeding command signal until the timer 36 stops operating. During this time, the output of the flip-flop 37 causes the control panel
Display means 38 such as a light emitting element provided on 2 lights up,
It is now displayed that the card is being fed and scanned.

Although one embodiment of a hand knitting machine to which the present invention is applied has been described above, the present invention is not limited to such a machine.

That is, in the above embodiment, by fitting the coil 21 of the scanning member C into the guide rod 18 and passing currents of opposite polarities through it, the permanent magnet 22 is used as a stator to cause the coil 21 to move in left and right directions opposite to each other. The scanning member C was made to reciprocate by applying a magnetic force to the scanning member C. However, two coils were used with the winding directions opposite to each other, and two guide rods 18 were made of a magnetic material. The scanning member C can also be caused to reciprocate by passing current through the coils alternately so that a magnetic force is generated between the coils and the guide rod 18.

In this case, the guide rod 18 functions as a guide means for guiding the movement of the scanning member C, and at the same time functions as a stator of the linear motor.

Furthermore, in the above, the sprocket wheel 611.6r is rotated forward and backward by the pulse motor a.
By preparing two electromagnets, one for forward rotation and one for reverse rotation, and operating them selectively,
The card 1 may be moved forward or backward.

Furthermore, as a feeding member that supports the card 1 and directly feeds it, in addition to the sprocket wheel 67°6r,
It may also be a belt with a protruding sprocket.

Furthermore, in the above embodiment, the card 1 is scanned by the scanning member C after being transferred, but in contrast, the card 1 is transferred after being scanned by the scanning member C. It's also good.

In this case, there are marks 39 on the card 1 for setting the feed width, which are read by the scanning sensor d when the scanning member C is in its original position as shown in FIG.
The mark is read effectively when the timer 36 stops operating (when the scanning member C completely returns to its original position), and the electrical signal associated with the reading is used to read the mark. If the pulse generator 31 in FIG. 6 is controlled in this way, the card 1 will be
can be transferred automatically.

As is clear from the above description, the scanning device of the present invention can be loaded with an information recording medium (knitting program card 1 in the embodiment) in which information such as a knitting pattern representing a pattern to be knitted is recorded, and the loaded state is A recording medium transport mechanism (sprocket wheels 61, 6r in the embodiment) capable of transporting the information recording medium in a desired direction
, pulse motor a, etc.) and a guide means (guide rod 1
7, 18), a traveling body capable of reciprocating along the guide means between the original position and a repeated position distant from the original position, and a traveling body equipped with this traveling body and converting information on the information recording medium into an electrical signal. A sensing reading element (scanning sensor d in the embodiment), a travel drive mechanism (linear motor in the embodiment) that automatically reciprocates the traveling body, a permanent magnet provided in the traveling body, and a permanent magnet provided in the traveling body. and a permanent magnet placed at a predetermined position that applies a repulsive force in the direction of the reversal position to the permanent magnet when the permanent magnet approaches the original position, and the scanning member is automatically moved per scan. Since the scanning member is made to travel back and forth at once, compared to a system in which the scanning member is made to travel in a predetermined direction for one scan and then in the opposite direction for the next scan, the traveling of the scanning member and the information recording medium are This simplifies the configuration related to transport and reduces reading errors.

In addition, particularly according to the present invention, while the traveling body can be braked by the magnetic force of the permanent magnets just before returning to the original position, it is also possible to accelerate the traveling body by the magnetic force of the permanent magnets when starting to leave the original position. It is possible to prevent the reaction when the traveling body reaches the original position, there is no double scanning, the running of the traveling body is quick and smooth, and scanning can be performed quickly and accurately.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a simplified perspective view of the entire hand knitting machine to which the present invention is applied, and Fig. 2 shows a part of the control panel of the main body of the hand knitting machine. Perspective view, 3rd
The figure is a front view of the scanning device of the present invention, FIG. 4 is a sectional view taken along the line 1-1 of the same, FIG. 5 is a sectional view taken along the line nn, and FIG. 6 is a block diagram showing the electrical configuration of the scanning device. The diagram, FIG. 7, is a time chart for the above block diagram. 1...--Knitting program card serving as an information recording medium, 61.6r...Sprocket wheel serving as a feeding member that supports the card 1, a...... serving as a driving source for the recording medium transport mechanism Pulse motor, 17, 18...
...Guide rod as a guide means, 19... Traveling body, 2
1, 22... Coil that drives the traveling body or constitutes the near motor, permanent magnet, d... Scanning sensor as a reading element, 27, 40... Repulses permanent magnet.

Claims (1)

[Scope of utility model registration request] A recording medium transport mechanism capable of loading an information recording medium on which information such as a knitting pattern representing a pattern to be knitted is recorded and transporting the information recording medium in a desired direction in the loaded state, and a transporting direction of the information recording medium. a guide means arranged along a line perpendicular to the original position, a traveling body capable of reciprocating along the guide means between the original position and a reversal position distant from the original position, and a traveling body equipped with the above-mentioned information recording means. A reading element that detects information on a medium as an electrical signal, a traveling drive mechanism that automatically drives the traveling body back and forth, a permanent magnet provided on the traveling body, and a reading element that detects information on the medium as an electric signal, a permanent magnet provided on the traveling body, and a reading element that detects information on the medium as an electric signal. A scanning device for a knitting machine, comprising: a permanent magnet disposed at a predetermined position that applies a repulsive force in the direction of the reversal position to the permanent magnet when the permanent magnet is in the reverse position.