JPS6156342B2 - - Google Patents

Description

Detailed Description of the Invention The present invention provides a knitting machine that performs a series of operations from reading a knitting pattern representing a pattern to be knitted to needle selection using an electric and electronic configuration. Regarding a knitted pattern scanning device for reading a pattern as a binary electric signal by scanning a scanning member, the object thereof is to automatically carry out the transport of the recording medium and the scanning of the scanning member in conjunction with the scanning of the carriage. This makes it possible to read the knitting pattern and perform needle selection operations based on it efficiently, as well as automatically transporting the recording medium while the carriage is scanning within the section where needle selection is performed based on the knitting pattern. In addition, the scanning member is caused to travel automatically while scanning outside the area, so that the time when the recording medium is automatically transferred and the time when the scanning member is automatically traveled are set in a certain fixed relationship. The object of the present invention is to provide a knitting pattern scanning device which is not only convenient in that it can be selected arbitrarily by carriage operation, but also convenient for checking the form of the knitting pattern of the next scanned row on the recording medium. .

The present invention will be explained in detail below using illustrated embodiments applied to a home-use hand knitting machine.

First, the overall outline of the hand knitting machine will be explained with reference to Fig. 1.The knitting machine main body X has its needle bed x ₁ .
On the rear side, a part is exposed above the control panel x ₂ , and by inserting the organization program card 1, which is a recording medium, into the part facing the control panel, it can be loaded so that it can be automatically transferred, and the display can also be displayed on it. A scanning member (first
(not shown in the figure) is installed, and on the needle bed x ₁ , there are left and right needle selection range setting switch activation pieces, which are point setting means that can arbitrarily divide the needle selection range. Although not shown in FIG. 1, the above-mentioned knitting program card 1 is located on the back side of the base plate ₂ of the carriage Y on which Z and Zr are mounted at arbitrary positions and runs on the needle bed x1.
In response to the electric signal obtained by scanning the knitting pattern above, the knitting needles arranged in rows on the needle bed x ₁ are effectively sorted back and forth according to the direction of movement of the carriage Y using electromagnetic force. A pair of left and right needle selection members are arranged at a predetermined length apart from each other.

The scanning device A is configured such that its scanning member automatically scans the information recorded on the card 1 horizontally in a straight line in relation to the travel of the carriage Y, thereby outputting an electric signal corresponding to the information recorded on the card 1. In addition, post-processing of the electrical signals is now performed by electronic configuration, and furthermore, the above-mentioned left and right 1
Power is supplied to the electrical components of the pair of needle selection members, for example, by the tension member 3 that applies tension to the knitting yarn.
By moving the carriage Y back and forth to the left and right until it passes over both left and right sides of the switch actuating pieces Z and Zr, the distance between the switch actuating pieces Z and Zr is Only the knitting needles are subjected to an effective sorting action (with the exception of those within this range which are in the rest position, where they are not subjected to any needle selection action).

Now, the mechanical configuration of the scanning device A will be specifically explained with reference to FIGS. 2 to 4.

The entire scanning device A is mounted on a frame 5 below the control panel x _2. First, the recording medium transport mechanism therein, that is, the mechanism for loading and transporting the organization program card 1 will be explained. Sprocket wheels 6 and 6r, which are feeding members, are mounted on the left and right sides of the frame 5 so that they can rotate together around a shaft 7.

The sprocket wheels 6, 6r are the left and right perforations 1',
A sprocket 6' that fits into the sprocket 1'' is protruded from the outer circumferential surface at a constant interval, and a U-shaped cross-section is arranged between the left and right sprocket wheels 6, 6r and at the lower end thereof. Insert the card 1 from the pattern card slot 9 facing on the control panel x ₂ between the card guide plate 8 and the card guide plate 8, and fit the perforations 1' and 1'' to the sprocket 6'. Therefore, the sprocket wheels 6, 6r can support the card 1 in a U-shaped bent state, and in this supported state, they are rotated by the pulse motor a, which is the drive source of the transfer mechanism installed on the right side of the frame 5. This makes it possible to transport the card 1 in the direction in which the perforations 1', 1'' are arranged.

Therefore, the pulse motor a is capable of forward and reverse rotation, and the forward and reverse directions of the sprocket wheels 6 and 6r are determined depending on whether the pulse motor a is driven forward or reverse. This determines whether to send it in the opposite direction (lower side of Figure 3) or in the opposite direction.

Further, a finger wheel 13 is fitted onto the shaft 7, and a portion of the finger wheel 13 projects upwardly through _{the window hole of the control panel x 2 .}
By hooking your finger on 3 and turning it, 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 x ₂ , and the slot 9 has a transparent plate 15 on the front side of the raised part 14 of the control panel x ₂ . , is arranged so that there is an appropriate gap for passing the card 1 between the upright portion 15' at the rear end and the front surface of the raised portion 14, and when the card 1 is inserted through the insertion opening 9, the The card 1 that is folded along the card guide plate 8 and placed under the control panel x ₂ is inserted into the control panel x _2.
It is adapted to be led out through an outlet 16 (FIG. 2) formed at the rear end of the holder.

Next, a scanning member traveling mechanism for scanning the card 1 horizontally in a straight line will be described.

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

That is, the scanning member b 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, a N pole,
The entire length of the lower side is an S pole, and the lower guide rod 18 is made of a magnetic material.
crosses the magnetic field that is always present, and the magnetic force acting between them causes the traveling body 19, and therefore the scanning member b, to move using the guide rods 17 and 18 as a guide means depending on the direction of the current flowing through the coil 21. It is designed to automatically move to the left or right along these lines.

That is, the coil 21 and the permanent magnet 22 constitute a type of linear motor that uses the permanent magnet 22 as a stator.

The scanning member b is always located at the left stroke end (the position shown in Figure 3), and moreover, it runs between the left stroke end and the right stroke end whose position can be adjusted as described later. It's getting wet.

Therefore, the scanning member b moves to the right from the left stroke end in relation to the travel of the carriage Y (more specifically, when the carriage Y approaches the switch activation piece Z or Zr), and will be explained in detail later. When it reaches the reflection plate 36 of the needle selection unit number setting instruction member 30, it is reversed and moves to the left stroke end, the details of which will be described later. A spring seat piece 24 is fixed to the upper guide rod 17 at a position corresponding to the left stroke end of the scanning member b.
It is horizontally suspended so as to be slidable from side to side, and is urged rightward to a predetermined position by a spring 26 wound around the guide rod 17 between the left end wall of the frame 5 and the spring seat piece 24. As a result, the scanning member b collides with the spring seat piece 24 during backward movement (leftward movement), but the impact is damped by the spring 26.

In this way, when the scanning member b collides with the spring seat piece 24, the spring 26 is compressed by the force of the collision, and the guide rod 17 is displaced to the left with respect to the frame 5 together with the scanning member b. This displacement causes the stopper 40 to actuate, and even with this actuated stopper 40, the scanning member b is prevented from moving to the right due to the reaction after the spring 26 is compressed. This configuration will be described in detail with particular reference to FIG. 4.

The stopper 40 is plate-shaped, and the pivot 4 is mounted on a stopper base 41 attached to the left end wall of the frame 5.
2 for horizontal rotation.

The stopper 40 is located at its pivot point (pivot 4
2), one side extends to a position facing the front side of the scanning member b at the position when colliding with the spring seat piece 24, and a hook portion 40' is provided at the tip of the one side. , while the other side extends rearward.

The stopper 40 is given a force to rotate clockwise in FIG. 4
0'' is always engaged with the left end 17' of the guide rod 17 passing through the left end wall of the frame 5, and the hook part 40' is retracted to a position where it does not normally hit the scanning member b. It's summery.

After the scanning member b reaches the reflection plate 36, it reverses, returns to the left stroke end (original position) (goes to the left), and collides with the spring seat piece 24, as described above. As the guide rod 17 slides slightly to the left due to the collision force, the left end of the guide rod 17 also pushes the stopper 40 and rotates counterclockwise in FIG. The portion 40' enters the travel range of the scanning member b.

In this way, the scanning member b moves to the right due to the reaction of colliding with the spring seat piece 24 and contracting the spring 26, but when it moves slightly to the right, it engages with the hook portion 40' of the stopper 40, and the scanning member b moves further to the right. It will be blocked from moving to the right and become stuck. On the other hand, the stopper 40 is
As the scanning member b moves to the right due to reaction, the guide rod 17 slides to the right to return to its original state, and by the action of the spring 43, it immediately rotates back and moves away from the scanning member b. Therefore, stopper 4
0 engages the scanning member b for only a short time, and the scanning member b is stopped by the stopper 40 and then immediately allowed to move to the right.

As a result of the above, the scanning member b immediately stops at a certain position (original position) without making a large reactionary movement after reaching the return position (original position), and immediately starts the next scanning after reaching the above-mentioned position. It is possible to take a posture and perform multi-stage scanning smoothly without erroneous scanning.

Now, as shown in FIG. 2, on the rear side of the scanning member b, the card 1 inserted from the pattern card insertion slot 9 as described above is vertically placed on the cover 2.
Card 1 at the height below
In order to scan the surface, a so-called photoelectric sensor c is installed, which consists of a reading element, that is, a light emitting element, and a light receiving element that receives light reflected from the card surface and converts it into an electrical signal.

As the scanning member b moves, its photoelectric sensor c optically scans one side of the card horizontally in a straight line.
will be referred to as a scanning sensor.

Note that the card 1 is scanned by the scanning sensor c during both the forward (rightward) and backward (leftward) strokes of the scanning member b, and the electrical signals associated with the scanning in both the forward and backward strokes are as follows. , only those related to the forward stroke of the scanning member b are taken out as valid.

Next, card 1 will be explained with reference to FIG. 3. On the white surface between the left and right perforations 1' and 1'', there is a knitting pattern recording area 1p, which is the part for recording the knitting pattern, and The left organization function information recording area, that is, the function mark entry field 1f, which is the area where function marks are recorded, is set to a color that is the same as the emission color of the light emitting element of the scanning sensor c and that the light receiving element does not discriminate (for example, the above When a red light emitting diode is used as a light emitting element, grid dividing lines (red) are created by displaying them in advance using an appropriate display method such as printing.

In the above-mentioned knitting pattern entry column 1p, among the grid dividing lines used to knit it, the vertical lines are the dividing lines between the stitches, and the horizontal lines are the dividing lines between the knitting rows.

To be more specific, knitting pattern entry field 1p
In this case, one minimum section or grid corresponds to one stitch, and the horizontal array or row corresponds to one knitting needle.
This corresponds to each book, and its vertical arrangement, or row, corresponds to the knitting row (wale), and when knitting a so-called unit pattern in which n horizontal rows of stitches constitute one group, , consider the vertical line at the left edge and the vertical line n vertical lines to the right as the boundary line, and draw a picture (knitting pattern) corresponding to the unit pattern to be knitted between them using an appropriate writing instrument such as a pencil. For example, it is used to draw a solid image in black.

For example, when knitting a unit pattern of 12 horizontal stitches by selecting 12 knitting needles as a group, the distance between the leftmost vertical line and the 12th vertical line It is intended to draw a picture within the range.

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. It reads that grid 1
This is because sampling is performed individually, and this will be explained in detail later.

In addition, the horizontal line of the function mark entry field 1f is on the same line as the horizontal line of the knitting pattern entry field 1p, and the vertical line is on the same line as the horizontal line of the knitting pattern entry field 1p.
It is parallel to the vertical line of p.

The function mark entry field 1f is used to mark an arbitrary entry grid when attempting to perform a required function operation such as activating the notification means for notifying thread exchange or determining the feeding direction of the card 1 itself. (for example, fill it with black)
In this example, we will use two of the entry grid columns (vertical arrangement) and place one of them on card 1.
One is for programming the forward direction of feed, and the other is for programming the reverse direction of feed.

As mentioned above, in the knitting pattern entry column 1p of the card 1, a knitting pattern representing the unit pattern to be knitted is drawn solidly, and the scanning sensor c of the scanning member b normally draws this knitting pattern solidly. Each row of grids is scanned horizontally in a straight line, and the electric signal for each stage of scanning is a square wave corresponding to the form of the knitting pattern in one stage of grids, that is, the form of one horizontal scan of the knitting pattern. If this is the only electrical signal obtained by scanning, there is no one-to-one correspondence with the knitting needle to be selected, and the funk that was written in the funktion mark entry field 1f does not correspond to the knitting needle to be selected in a one-to-one relationship. The scanning mark is also read by the scanning sensor c before the knitting pattern is read, and becomes an electrical signal in the electrical system, but these two types of electrical signals are separated from each other, and the knitting pattern The electrical signals related to the reading of the function marks are converted into binary electrical signals corresponding to the knitting needles in a one-to-one relationship, and the electrical signals related to the reading of the function marks are also converted to the binary electrical signals corresponding to the knitting needles in a one-to-one relationship. Next, a sampling mechanism that performs such an operation, that is, a sampling operation, will be explained.

A horizontally long plate-shaped linear encoder 28 is horizontally suspended on the frame 5 behind the traveling body 19 of the scanning member b in parallel with the guide rods 17 and 18.

The linear encoder 28 installs a predetermined plurality of knitting pattern sampling slits 28p for sampling the knitting pattern drawn in the knitting pattern entry field 1p on the card 1, one to one for each written grid row in the knitting pattern entry field 1p. In addition, a predetermined plurality of function mark sampling slits 28f for sampling function marks are provided in correspondence with each other.
The holes are drilled in one-to-one correspondence with each entry grid row in the function mark entry field 1f.

On the other hand, on the rear side of the traveling body 19 of the scanning member b, there is a photoelectric sensor for optically reading both of the two types of slits 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 d consisting of a light receiving element that receives light and converts it into an electrical signal is attached.

As the scanning member b travels, the sampling sensor d outputs a pulse corresponding to the slits 28f and 28p, that is, a sampling pulse. As in the case, both the reciprocating strokes of the scanning member b (the left stroke end which is the original position and the reflection plate 3 attached to the needle selection unit number setting instruction member 30 mentioned above)
6), only those related to the forward stroke are taken out as valid ones, and two types of sampling pulses, namely, sampling pulses for sampling the knitting pattern and funk pulses, are taken out as valid ones. The sampling pulses for sampling the cut marks are separated from each other.

Thus, 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 entry grid, but such sampling is performed for each entry grid in relation to the card 1. The card guide plate 8 has a knitting pattern entry column 1 along the scanning line of the scanning sensor c so that the knitting pattern can be accurately
A slit 8p corresponds in a one-to-one relationship to each grid column filled in p, and a slit 8 corresponds in a one-to-one relationship to each grid column filled in the function mark entry field 1f.
f and a scanning sensor c
is designed to pick up the presence or absence of marks on card 1 for each slit through these slits.

Therefore, in the electric signal involved in reading the knitting pattern, each bit corresponds to each entry grid, and therefore one knitting needle, and depending on whether each entry grid has a mark or not, it is a binary number "1" or "1". 0” is decided 2
It is converted into a binary electrical signal and stored sequentially from left to right in a predetermined memory MEM (FIG. 7) for storing knitting patterns, and the number of bits of the binary electrical signal read out from this is Control panel x ₂ Finger wheel 2 for setting the number of needle selection units partially visible on top
9 to set the needle selection unit number setting instruction member 30 pointer 3
1 is a scale plate 32 provided below the transparent plate 15.
The number indicated by the pointer 31 determines the number of needle selection units by adjusting the number to the scale, and then the number of needle selection units is determined. The mechanism for setting the number of needle selection units will be explained.

The needle selection unit number setting instruction member 30 is mounted on a rail plate 33 horizontally suspended on the frame 5 so as to be able to slide left and right, and is integral with the finger wheel 29. Pulley 34r on the right side
It is connected to a finger wheel 29 by a string 35 that is passed between the pulley 34 on the left side and a pulley 34 on the left side, and by turning the finger wheel 29, it can slide left and right.

A reflecting plate 36 is vertically provided on this member 30 and is pressed against the front surface of the card guide plate 8.

The front surface of the reflecting plate 36 is mirror-finished and has a much better light reflectance than the front surface of the card guide plate 8 and the card 1 surface.

Therefore, when the scanning sensor c faces this reflection plate 36, the output voltage of the scanning sensor c (more specifically, the output voltage of the light receiving element)
suddenly rises. Therefore, if the voltage at this time is determined experimentally in advance and a voltage slightly lower than that is used as a reference voltage to detect when this voltage is exceeded, the scanning sensor c will eventually face the reflector plate 36. It is clear that this can be detected.

Therefore, the needle selection unit number setting circuit in Fig. 7
The SP includes a counter and a memory, and the counter only collects the sampling pulses from the sampling sensor d for knitting pattern sampling excluding a predetermined number of sampling pulses for function marks. The scanning sensor c counts until it detects the reflecting plate 36, and stores the counted value in its memory, so that the number of needle selection units is finally set and stored.

And the scanning member b is, as will be explained in detail later,
It moves to the right by a distance corresponding to the number of needle selection units determined as above until it reaches the reflection plate 36, and immediately returns to its original position from there.

Next, the mechanical structure of the carriage Y side will be explained with reference to FIGS. 2, 5, and 6.

As mentioned above, the main hand knitting machine performs effective scanning of the knitting pattern by the scanning sensor c of the scanning member b only in the forward stroke, and transmits the binary electric signals related to the scanning to the pattern sequentially from left to right. In contrast to temporarily storing data in the storage memory MEM,
The actual needle selection operation performed by reading out the above-mentioned binary electric signal stored in the memory is carried out during both the reciprocating strokes of the carriage Y while the left and right needle selection members alternately operate according to the traveling direction of the carriage Y. In order to knit the knitting pattern according to the knitting pattern drawn on card 1, the carriage running direction is detected and the storage of the binary electrical signal in the memory and its readout are controlled by the detection signal. Must.

Therefore, the carriage Y is shown in Fig. 5 (carriage Y
The right half shows the top surface of the base plate with the top cover removed, and the left half shows the back surface) and the sixth
As shown in the figure, a carriage reversal switch mechanism E is provided at the center of the rear edge, and this will be explained first.

A horizontally rectangular sheath frame 44 is fixed on the base plate 2 of the carriage Y, and a switch actuator 45 is fitted therein so as to be slidable back and forth within a predetermined length range.

The switch activation body 45 includes a connecting piece 46 having a T-shaped cross section and a magnet piece 47 that slides on the upper surface of the sheath frame 44.
are sandwiched between two front and rear magnetic plates 48 ₁ , 48 ₂ to form a single plate-like unit, and the lower ends of the two magnetic plates 48 ₁ , 48 ₂ are connected to the base plate 2
The lower end surfaces of the magnetic plates 48 1 and 48 2 pass through the horizontally elongated hole 2' provided in the base plate 2 and the horizontally elongated hole 49' provided in the slide pipe 49 fixed to the base plate ₂ , and the lower end surfaces of the magnetic plates 48 ₁ and 48 ₂
Carriage guide bar 50 made of magnetic material installed horizontally above
It is designed to be constantly adsorbed.

On the other hand, a micro switch e having three switch parts e ₁ to e ₃ is fixedly installed on the rear side of the sheath frame 44, and a lever e' of the switch e is connected to the rear wall of the sheath frame 44. It passes through a window hole 44' provided in the rear side and is inserted into a hole 48 _' of a magnetic plate 482 on the rear side.

Therefore, the switch actuator 45 is fitted into the sheath frame 44 so as to be allowed to slide freely within a predetermined range on the left and right, and the skiriage guide bar 50
When the carriage Y is moved to the left, it slides to the right sliding limit position with respect to the sheath frame 44 and then moves with it, and when the carriage Y is moved to the right, it moves as described above. On the contrary, the micro switch e is slid to the left sliding limit position and then moved together with the micro switch e. One of them is the switch part for detecting the carriage running direction.
From e ₁ , as shown in FIG. 8 [ ], a binary electrical signal that is reversed from "H" to "L" or vice versa is obtained by reversing the running of the carriage Y.

Next, the left and right needle selection members F and Fr, which ultimately carry out the front and rear knitting of knitting needle N, have symmetrical arrangement of component parts, but both have substantially the same structure and are attached to the carriage stand. Electromagnet 5 installed on plate 2
Depending on whether 1 is excited or not, the knitting needles N can be sorted forward or backward by applying magnetic force to the pad N' of the knitting needle N and attracting it forward or backward, or by leaving it as it is without applying magnetic force. It's becoming like that.

The left and right needle selection members F and Fr are the micro switch e of the carriage reversal switch mechanism E.
The electromagnet switching switch part e ₂ inside is the carriage Y.
By being switched according to the traveling direction of the carriage Y, only one electromagnet 51 (in this example, the one on the front side in the traveling direction of the carriage Y) that should be effectively operated is supplied with power for the needle selection operation. It's summery.

Therefore, the left and right needle selection members F and Fr are capable of sorting knitting needles N one by one forward or backward by keeping the electromagnet 51 in a non-energized state or energizing it, but the point at which the sorting is carried out is Even if the knitting needle N is facing the needle N, if it is located outside the range of the needle selection range setting switch activation pieces Z and Zr, which are the left and right point setting means mentioned above, the electromagnet 51 issues an excitation command. Since it remains in a non-magnetic state without receiving any magnetic flux, it is not subjected to the above-mentioned sorting action by the electromagnet 51. Next, such a configuration will be explained with reference to FIGS. 5 and 6.

The left and right switch activation pieces Z and Zr both have a cam groove Z ₁ running left and right on their upper surfaces, and a plurality of protrusions _{Z 2 that} fit into the needle grooves Furthermore, a plurality of butt engagement grooves _Z3 are formed on the front side surface to tightly receive butts N' of knitting needles N,
By fitting N ₂ into the rear end of needle groove x ₃ and further engaging butt N' into the butt engagement groove Z ₃ , the needle can be placed at any position on needle bed x ₁ without moving left or right. However, the shapes of the cam grooves _Z1 are symmetrical to each other.

That is, the left switch activation piece Z is connected to the front and rear cam portions Z ₄ and Z ₅ that form the front and rear side walls of the cam groove Z ₁ .
The arrangement of the front side is on the right and the rear side is on the left, whereas the right switch activation piece Zr has the opposite relationship to the above.

On the other hand, on the base plate 2 of the carriage Y,
a needle selection end detection switch mechanism G, which is a pair of left and right point detection means that operate the switch by engaging the switch actuating pieces Z and Zr as the needle travels;
, Equipped with Gr.

The left and right switch mechanisms G and Gr have substantially the same structure, although the mutual arrangement of component parts is symmetrical.

The crank 53 is horizontally rotatably supported on the carriage base plate 2 by a pivot 54, and a protrusion 55 hanging down from the lower surface of one end of the crank 53 is inserted through the window hole 2'' of the carriage base plate 2. The protrusion 5 is made to protrude downward from the base plate 2, and its other end is connected to a lever of a micro switch 56 mounted on the base plate 2.
5 passes through the cam grooves _Z1 of the left or right switch actuating pieces Z, Zr, which are not affected by the travel of the carriage Y, so that the crank 53 rotates and switches the micro switch 56.

That is, the micro-switches 56, 56 of the left and right switch mechanisms G, Gr are both on when their respective corresponding protrusions 55, 55 are within the distance between the left and right switch activation pieces Z, Zr,
If it goes outside this interval, it will turn off.

The left and right protrusions 55, 55 are located on the rear extension line of the selection point of the left and right needle selection members F, Fr, respectively, and the left and right switch mechanisms G, Gr are located on the left and right selection members, respectively. Needle member F
, Fr comes to the installation position of the switch activation pieces Z and Zr on the needle _bed Both switch mechanisms G and Gr
The electrical signal of the carriage reversing switch mechanism E
The effective needle selection range indicating switch part _e3 in the micro switch e allows only the part on the side where effective needle selection is to be performed to be taken out.

As shown in Fig. 8 [ ], the effective needle selection range indicating switch part e ₃ is operated from the time when the needle selection end detection switch mechanism G or Gr on the side that performs the effective needle selection operation is turned on until it is turned off. In other words, while the needle selection point of the needle selection member F or Fr on the front side in the direction of movement of the carriage Y is within the interval between the left and right switch activation pieces Z and Zr, the signal indicating the effective needle selection range is "H". and outputs a signal "L" when the interval is outside the above-mentioned interval range, and while the above-mentioned "H" is being output, the above-mentioned pattern storage memory MEM which stores the binary electrical signal related to the knitting pattern
is read out, and only during this time the electromagnet 51 on the side that performs the effective needle selection operation is controlled to be energized or de-energized.

In this way, reading of the memory is performed only within the effective needle selection range determined by the left and right switch activation pieces Z and Zr, but the reading is performed because the traveling speed of the carriage Y is not constant and fluctuates greatly. , must be done in accordance with the travel timing of the carriage Y.

Therefore, the carriage Y is equipped with photoelectric sensors H and Hr at the rear end of the base plate 2 and at positions corresponding to the left and right needle selection members F and Fr, respectively.
is installed, and its photoelectric sensor H,
Hr has ₃ needle grooves on ₄ rising walls at the rear end of ₁ needle bed...
₅ slits arranged in a one-to-one relationship with...
By reading this as a kind of linear encoder as the carriage Y travels, the photoelectric sensors H and Hr output pulses, that is, timing pulses that match the travel timing of the carriage Y. The reading of the above-mentioned memory is thereby controlled, and hereinafter the photoelectric sensors H and Hr will be referred to as timing pulse generators.

In addition, the left and right timing pulse generators H,
The pulses from Hr are taken out as effective only by the carriage reversing switch mechanism E that corresponds to the knitting needle selection mechanism F or Fr on the side that performs the effective needle selection operation.

The mechanical configuration of this hand knitting machine is as described above, and the electrical and electronic configuration will be explained in Section 7.
This will be explained with reference to FIG.

First, a description will be given of the configuration of an input function section that scans and feeds the card 1 and stores the read knitting pattern as a binary electrical signal in the pattern storage memory MEM.

The relationship between the travel of the scanning member b and the transfer of the card 1 is such that when the carriage Y enters from outside the effective needle selection range determined by the switch activation pieces Z and Zr (more specifically, when the carriage Y enters the range from outside the effective needle selection range determined by the switch activation pieces Z and Zr (more specifically, when the carriage Y enters the effective needle selection range) When the needle member F or Fr enters), card 1 is transferred,
On the other hand, the scanning member b is configured to travel when moving from within the effective needle selection range to outside the range, and this is the point where the focus of the present invention lies. If multiple sets of needles are arranged intermittently on ₁ needle bed, that is, if multiple effective needle selection ranges are set up, card 1 is set when the carriage enters the first effective needle selection range.
is moved, and the scanning member b is configured to run when exiting the last effective needle selection range.The case where two effective needle selection ranges are provided will be explained below. For convenience, one effective needle selection range will be referred to as one point. Therefore, if such an expression method is adopted, the pattern will be knitted only within the effective needle selection range, as mentioned above, so if there is one effective needle selection range, knitting will be performed at one point, and if there are multiple effective needle selection ranges, the pattern will be knitted. can be said to be multi-point knitting.

First, before operating the carriage, set the point number setting means PP, which is a digital switch etc. provided on the control panel x ₂ , in advance to a number that matches the number of points (number of effective needle selection ranges). put. Incidentally, in this example, it is assumed that it is set to "2".

When the carriage Y reaches the first point (effective needle selection range) after its travel is reversed, the card feed command circuit CC outputs a card feed command signal as shown in FIG.

The card feed command circuit CC is configured to output a card feed command signal only when the carriage Y moves in a certain direction and enters the first point, and does not output a card feed command signal for subsequent points. .

To explain this in detail with reference to FIGS. 9 and 10, the card feed command circuit CC is composed of a carriage reversal detection circuit CT, a flip-flop _FF1 , and an _AND1 .

When the carriage Y reverses its travel, the output of the carriage travel direction detection switch _e1 in the carriage reversal switch mechanism E (Fig. 10 [ ]) changes from "H" to "L" or vice versa. However, this reversal is detected by the carriage reversal detection circuit CT, which includes a knot, two differentiating circuits, and a NOR, and outputs the signal shown in _FIG .
The fact that the carriage has been reversed is stored (see Figure 10).

When the carriage Y enters the first point (effective needle selection range) by traveling after this reversal (if the carriage is running to the right, when it approaches the switch activation piece Z on the left side of the leftmost point) , in the case of left row, switch activation piece Zr on the right side of the right end point
As mentioned above, the output of the effective needle selection range indicating switch _e3 becomes "H" as shown in Figure ₁₀ []. AND ₁ , which receives the output [ ], outputs a signal "H" as shown in [ ].

By the way, the output of AND ₁ is also used as a reset signal for flip-flop FF ₁ , so flip-flop FF ₁ is reset the moment an output is generated from AND ₁ , and as a result, the output of AND ₁ is the trigger waveform as shown in [ ].

Thus, as is clear from the above, and
AND ₁ outputs the signal shown in [ ] only when carriage Y enters the first point after inversion, and the output of AND ₁ is the output of the card feed command circuit CC (card feed It is used as a command signal).

Looking at this in Figure 8, when the carriage Y enters the first point when moving to the right, and when it enters the second point when moving to the left, each A card feed command signal is output from the card feed command circuit CC.

As described above, when the card feed command circuit CC outputs the card feed command signal, the pulse generator PG in FIG. 7 generates a predetermined number of pulses (one in this example) as shown in FIG. and thereby pulse motor drive circuit PD
drives the pulse motor a to remove the card 1.
is a circuit that outputs a signal depending on the card feeding direction.
It is transported one step in the direction indicated by the CS. It is clear that this transfer is performed while the carriage Y is traveling through the first point (effective needle selection range) after its reversal.

Next, the traveling operation of the scanning member b is explained. When the carriage leaves the last point of traveling in a certain direction, the comparator circuit CM ₁ outputs the signal shown in FIG.
It is now only done at that time.

That is, the point number setting means PP, which is preset according to the number of points as described above, outputs a parallel binary electrical signal according to the set number and inputs it to the comparison circuit _CM1 .

On the other hand, the signal representing the effective needle selection range (Fig. 8 [ ]) is counted by the counter CO, and when the counted value and the number set by the point number setting means PP match, the comparator circuit CM ₁ It is designed to output a signal like this. Note that the counter CO is reset when the carriage Y reverses its travel.

Therefore, when exiting the last point in each case of the right row and the left row of the carriage Y, the comparator circuit CM ₁ detects the second point in the case of the right row in FIG. When exiting, in the case of the left row, when exiting from the first point, a matching signal is output, respectively.

Then, this coincidence signal activates the monostable multivibrator MN ₁ for forward movement of the scanning member, and its output (Fig. 8 [ ]) is inputted to the scanning member drive circuit SD through AND ₂ , so that the scanning member b is immediately moved. Go right.

Due to this right row, the sampling pulse from the sampling sensor d passes through _AND3 as shown in FIG. 8, and is input to the comparator circuit _CM2 .

The comparator circuit CM ₂ includes a counter, which counts pulses for sampling the knitting pattern among the sampling pulses, and
The counted value is the needle selection unit number setting circuit SP mentioned above.
When it matches the number of needle selection units stored in
As shown in [], the output changes from "H" to "L"
I'm trying to become like that.

Due to this change in the output of the comparator circuit CM ₂ , the output [ ] of the above AND ₂ changes from "H" to "L", and at the same time, the monostable multivibrator MM ₂ for backward movement of the scanning member operates as shown in [ ]. Then, the scanning member b returns (moves to the left).

Thus, the scanning member b moves away from its original position and moves to the right at the moment when the carriage Y exits the last point, and the number of sampling pulses for knitting pattern sampling from the sampling sensor d reaches the preset needle selection point. When the number of units matches, and therefore when the scanning sensor c detects the reflective plate 36, it reverses itself and immediately returns to its original position. Therefore, the reciprocating motion of the scanning member b is performed while the carriage Y is traveling outside the left and right points.

Incidentally, while the scanning member b is traveling, the flip-flop FF ₂ is set, and its output lights up the light emitting element L provided on the control panel x _2, etc., while the scanning member b is traveling. This is becoming more obvious from the outside.

By the way, in the above, the case where two effective needle selection ranges are provided has been described, but it is clear that the transfer of the card 1 and the running of the scanning member b are performed in the same manner as described above in the case of more than two effective needle selection ranges. Furthermore, if the effective needle selection range is set to one and the point number setting means is set to "," the card 1 will be transferred when the carriage Y enters that one effective needle selection range, and the scanning member b will be transferred when the carriage Y enters that one effective needle selection range. It is also clear from the above that the running is performed.

When the scanning member b travels as described above, the electrical signals from the scanning sensor c and the sampling sensor d are transmitted to the reciprocating movement of the scanning member b by the effective data forming circuit c' and the effective sampling pulse forming circuit d', respectively. Only those related to the process are effectively extracted, and the former electric signal is input to the memory control circuit MC, and the latter electric signal (sampling pulse) is input to the write address designation circuit WA.

The write address designation circuit WA includes a binary counter that counts the sampling pulses (for knitting pattern sampling), and inputs a parallel binary electric signal corresponding to the counted value to the memory control circuit MC as a write address designation signal. I'm starting to do that.

The memory control circuit MC samples the electric signal related to the scanning of the knitting pattern from the effective data forming circuit c' using the pulse from the effective sampling pulse forming circuit d', and samples the electric signal related to scanning of the knitting pattern from the effective data forming circuit c', and samples the electric signal related to the scanning of the knitting pattern one by one for each knitting needle. After converting the bit into a corresponding binary electrical signal, the binary electrical signal is sequentially stored at a predetermined address in the memory MEM under the addressing control of the write address designating circuit WA. There is.

With the input function part described above, card 1
is transferred and scanned, and knitting pattern entry column 1
The knitting pattern drawn in P is read one row at a time and stored in the memory MEM as a binary electrical signal that corresponds one-to-one with the knitting needles N. The left and right needle selection members F,
The output function part that causes Fr to select knitting needles N will be explained.

The timing pulses from the timing pulse generators H and Hr are input to the effective timing pulse forming circuit H, and are input only when the carriage Y is within the effective needle selection range, and also when the carriage Y is in the left direction and in the right direction. The timing pulses are divided and taken out as effective by the effective timing pulse forming circuit H.

That is, the effective timing pulse forming circuit H
In addition to the above-mentioned timing pulse, a signal representing the effective needle selection range (Fig. 8 []) and a signal representing the carriage traveling direction (Fig. 8 []) are input, and the falling edge of the above-mentioned timing pulse is detected, and only while there is a signal representing the effective needle selection range, the output terminal is output from the output terminal "1" when the signal is "H", and from the "1" output terminal when the signal is "L", depending on the signal representing the direction of travel of the carriage. 2" outputs an effective timing pulse from the output terminal.
The valid timing pulses output from the output terminal ``1'' are added by the read address designation circuit RA including an up-down counter, and the valid timing pulses output from the output terminal ``2'' are subtracted. It's summery.

In this way, the effective timing pulses from the effective timing pulse forming circuit H are added or subtracted by the readout address designation circuit RA depending on the traveling direction of the carriage Y, and the maximum value of the readout address designation circuit RA is is preset to the same number as the number of needle selection units stored in the needle selection unit number setting circuit SP.

Thus, the read address designating circuit RA repeatedly takes the same value (digital electrical signal) every time the carriage Y is running within the effective needle selection range and counts the preset number of timing pulses.

In other words, it can be said that this circuit RA codes the knitting needles N located between the left and right switch activation pieces Z and Zr for each effective needle selection range, and assigns repeat numbers in a certain direction.

The output of this circuit RA is supplied to the aforementioned memory control circuit MC as a read address designation signal for the memory MEM, and the binary electric signal stored in the memory MEM is Bits corresponding to the number of needle selection units are repeatedly read out, output as a binary electric signal from the memory control circuit MC, and input to the electromagnet drive circuit MD. The output of this drive circuit MD is inputted to the electromagnet 51 of the needle selection member F or Fr, which is one of the needle selection members F or Fr, which performs an effective sorting operation, by the electromagnet changeover switch _e2 .

In this way, the knitting needles N between the left and right switch actuating pieces Z and Zr are, for example, when the number of needle selection units is "12", 12 needles are considered as one group, and the knitting needles N between the left and right switch activation pieces Z and Zr are divided into two groups: Accordingly, the 12 pieces are sorted according to the form of the knitting pattern drawn between them and the grid drawn on the right side.

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, as a point setting means, the switch activation pieces Z and Zr for dividing the effective needle selection range are separately placed on the needle bed _x1 , and the selection is made when the carriage Y approaches them. The scanning member b is automatically moved and the card 1 is automatically transferred by detecting the needle end with switch mechanisms G and Gr, but the knitting needle N itself is regarded as a point setting means and cannot be identified The above-mentioned automatic traveling and automatic transport may be performed by detecting the position.

Figures 11 and 12 show examples of this.
The carriage Y is equipped with a stop knitting needle detection switch mechanism J (the one on the left side is not shown) as a point detection means separate from the needle selection end detection switch mechanisms G and Gr on both the left and right sides of the base plate 2. It is provided.

In this switch mechanism J, a switch 121 is provided below a sensing plate 120 whose base end is rotatably supported on a base plate 2, and a downwardly bent portion 120', which is a free end of the sensing plate 120, is connected to the base plate 2. The lowermost horizontal part of the downward bent part 120' is positioned further below the head end of the butt N' of the knitting needle N at the rear rest position. It is designed to engage with two of the butts N' at the rear rest position, and when the knitting needles N are at the rear rest position, the sensing plate 1 is activated by the butts N'.
20 is lifted to turn off the switch 121, and when the knitting needle N is in a position other than the rear rest position, the sensing plate 120 holds the switch 121 in the on state. Note that the sensing plate 120
The horizontal portion of the downwardly bent portion 120' of the needle selection member F
Alternatively, it is positioned correspondingly on the rear extension line of the screening point of Fr.

Therefore, when the carriage Y approaches the first of the knitting needles at the rest position behind the group of knitting needles set at the needle selection receiving position subjected to the selection action by the needle selection member F or Fr, the switch 105 is turned on. If the electric signal generated at this time is used to control the circuit for feeding the card and running the scanning member b shown in FIG. The automatic movement of the scanning member b and the automatic transfer of the card 1 can be controlled.

In the above, the needle selection end detection switch mechanisms G, Gr and the stop knitting needle detection switch mechanism J are provided on the carriage Y itself, but the above may be achieved even if these are provided on members that move integrally with the carriage Y. It is clear that similar operations can be performed. Further, in the above embodiment, the left and right switch activation pieces Z and Zr are arranged on the needle bed _x1 as point setting means for dividing the needle selection range, while the switch activation piece Z is placed on the carriage Y as a point detection means. , a mechanical needle selection end detection switch mechanism G that operates as a switch by engaging with Zr;
Gr, but as a point setting means, a member with an optical mark is placed on the needle bed x ₁ , and this can be detected by an optical sensor, which is a point detection means, provided on the carriage Y side. Often, a reed switch is installed as a point setting means on a guide rod installed horizontally on the X side of the knitting machine so that it can slide left and right, while the carriage Y is equipped with a permanent magnet, so that the carriage Y approaches the reed switch. Therefore, even if the reed switch is operated, the left and right ends of the effective needle selection range can be electrically detected.

As detailed above, the present invention has the following effects.

When one of the pair of left and right needle selection members installed on the carriage moves out of the effective needle selection range, automatic scanning is performed by the scanning member, and vice versa. In order to automatically transport the recording medium when the recording medium enters the range, scanning is performed with a scanning member when the recording medium moves out of the range from within the range, and immediately after the scan is completed, the recording medium is automatically transported immediately after scanning. There is no need to separately prepare a detection means for detecting the return of the member, and the effective needle selection range indicating means and carriage running direction detection means can be used as they are to start running the scanning member and start transporting the recording medium. can.

The timing of automatically transporting the recording medium and the timing of automatically transporting the scanning member are not fixed, but can be selected independently by carriage operation, so when a formation problem occurs or during formation When necessary work is required, the transfer of the recording medium can be put on hold and transferred after the problem has been resolved or the work has been completed. There is no possibility that the upper scanning stage and the knitting stage on the knitting surface will be out of order.

[Brief explanation of the drawing]

Figure 1 is a simplified perspective view of the entire hand knitting machine to which the present invention is applied, Figure 2 is a sectional view of the entire hand knitting machine, Figure 3 is a front view of the scanning device, and Figure 4 is a simplified perspective view of the entire hand knitting machine to which the present invention is applied. ,
FIG. 5 is a plan view of a component that is part of the scanning device and prevents reaction when the scanning member returns to its original position. The right half shows the top surface of the base plate with the top cover removed, and the left half shows the back surface. Fig. 6 is a cross-sectional view of the carriage reversing switch mechanism, and Fig. 7 shows the overall electrical and electronic diagram. 8 is a time chart for the block diagram of FIG. 7, FIG. 9 is a block diagram showing the specific structure of the card feed command circuit in the block diagram, and FIG. Time chart for the block diagram in Figure 9, No. 11,
FIG. 12 shows only the essential parts of another embodiment of the mechanism for detecting the point setting means, FIG. 11 is a plan view, and FIG. 12 is a sectional view. 1...Organization program card as a recording medium, b
...Scanning member, MEM...Memory, Z, Zr...
The switch activation piece that is the point setting means, e ₁ ...
Switch for detecting carriage running direction, e ₂ ... Switch for indicating effective needle selection range, CC ... Card feed command circuit, MM ₁ , MM ₂ ... Monostable multivibrator for forward and backward movement of scanning member.

Claims (1)

[Claims] 1. Equipped with a recording medium transport mechanism that can automatically transport a recording medium on which a knitting pattern representing a pattern to be knitted is recorded, and a scanning member traveling mechanism that can automatically travel a scanning member, the knitting pattern can be knitted with the scanning member. The binary electric signal is read as a binary electric signal and stored in a memory, and this binary electric signal is adjusted to the traveling timing only for the carriage traveling within the effective needle selection range divided by arranging the left and right point setting means. In a knitting machine that selects needles according to the contents of a binary electrical signal, the carriage traveling direction detection means detects the traveling direction of the carriage and outputs an electric signal corresponding to the traveling direction of the carriage. When one of the pair of needle selection members, which operates effectively in relation to the traveling direction of the carriage, is located between the left and right point setting means, an electric current is generated to indicate the effective needle selection range. An effective needle selection range indicating means for outputting a signal, an electric signal from the effective needle selection range indicating means and an electric signal from the carriage running direction detection means are input, and one of the needle selection members selects the effective needle selection range. A scanning control circuit that activates the scanning member traveling mechanism when moving from inside to outside the range, and an electric signal from the effective needle selection range indicating means and an electric signal from the carriage traveling direction detection means are also input, and one of the needles is selected. A knitting pattern scanning device for a knitting machine, comprising: a recording medium transfer control circuit that activates the recording medium transfer mechanism when a member enters the effective needle selection range from outside the effective needle selection range.