JPS6040617Y2 - knitting machine scanning device - Google Patents

Description

[Detailed description of the invention] The present invention is a knitting machine that optically scans information such as knitting patterns recorded and displayed by marking a required information recording medium such as a card with a scanning member and reads it as an electrical signal. A scanning device, more specifically, a recording medium transport mechanism capable of vertically transporting an information recording medium that records information such as a knitting pattern representing a pattern to be knitted, a guide rod horizontally suspended in a frame, and this guide. An edition comprising a traveling body slidably mounted on a rod, and a photoelectric sensor provided on the traveling body and optically scanning the information recording medium as the traveling body runs and reading the information as an electrical signal. machine scanning device.

In this type of scanning device, when the information recording medium is loaded into the feeding member, the scanning stage, which is predetermined by dividing the information recording medium in advance, is precisely aligned with the scanning line of the photoelectric sensor. If the information is not compatible with the information, the information programmed on the information recording medium will be read incorrectly.

Such a deviation is an unavoidable problem when assembling and manufacturing the scanning device, and it is desirable to be able to correct it after assembling and manufacturing.

One example of this would be to adjust the support position of the feed member, but since the feed member needs to be driven, it is technically difficult to adjust the support position, and such adjustment is not appropriate.

Furthermore, it is conceivable to equip the photoelectric sensor so that it can be adjusted and moved to the traveling object, but the photoelectric sensor is small, and it is technically difficult to make it possible to move such a small object. Since the scanning position on the information recording medium changes greatly even with a slight movement, the adjustment is delicate and not easy.

Therefore, the present invention focuses on the guide rod whose movement can be easily adjusted with a very simple configuration, and by supporting this guide rod so that its movement can be adjusted, the above-mentioned deviation can be solved in a very simple manner. This can be easily corrected depending on the configuration.

In the following, the present invention will be explained in detail with reference to the illustrated embodiments.

The entire scanning device is installed in the frame 5, which is roughly divided into the organization program card 1, which is an information recording medium.
It consists of a recording medium transport mechanism that loads and transports the card 1, and a scanning member traveling mechanism that automatically travels the scanning member C to scan the card 1 horizontally and linearly.

First, to explain the recording medium transport mechanism, a card feeding roller 6, which is a feeding member and has sprocket wheels 61 and 6r on the left and right sides, is horizontally mounted on the frame 5 so as to be freely rotatable.

Sprocket wheels 6] and 6r are perforations 1' on the left and right sides of the organization program card 1.

A sprocket 6' that fits into the sprocket wheel 6' is protruded from the outer circumferential surface at a constant interval, and a card with a U-shaped cross section is arranged below the left and right sprocket wheels 61, 6r and between them. By inserting the card 1 from the pattern card slot 9 facing on the upper cover 2 between the card 1 and the guide plate 8, and fitting the perforations 1' and 1'' to the sprocket 6', The sprocket wheels 61, 6r can support the card 1 in a U-shaped bent state, and in this supported state are rotated by a pulse motor a, which is the drive source of the drive mechanism disposed on the right side of the frame 5. The card 1 can be transferred in the direction in which the perforations 1' and 1'' are arranged.

That is, the card feed roller 6 is linked to the pulse motor a by having a gear fitted on its shaft 7 meshing with a gear 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 direction of the card feed roller 6 is determined depending on whether it is driven forward or backward, and thereby whether the card 1 is sent in the forward direction or not. (Bottom side of Figure 1) This determines whether to send in the opposite direction.

The shaft 7 of the card feed roller 6 is provided with a sliding ring 13 whose portion projects upward through the window hole of the upper cover 2.
The sliding ring 13 is fitted on the cover 2.
The card 1 can also be transferred manually by placing a finger on and turning it.

As mentioned before, the card 1 is inserted through the pattern card slot 9 on the cover 2;
is constructed by arranging a transparent plate 15 on the front side of the hanging portion 14 of the cover 2 so that an appropriate gap is created between the upright portion 15' at the rear end and the front surface of the hanging portion 14 to allow the card 1 to pass through. The card 1 inserted through the insertion slot 9, bent along the card guide plate 8, and entered under the cover 2 is transported to an exit 16 formed at the rear end of the cover 2 (see Fig. 3). ) is now derived more outward.

Next, a scanning member traveling mechanism for automatically traveling the scanning member C will be described.

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

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 therewith.

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.

Although the scanning member C is normally located at the left stroke end (the position shown in Figure 1), the scanning member C is always located at the left stroke end (the position shown in Figure 1), but when the carriage (not shown) travels (for example, when the carriage reverses travel). By automatically supplying enough current to the coil 21 to travel from the left stroke end to the right stroke end, and then immediately feedback travel from the right stroke end to the left stroke end, one left and right reciprocation is achieved. It is designed to travel all at once without interruption, and the left stroke end is the original position.

A limit switch 23 for detecting reversal 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 limit switch 23 for detecting reversal is provided at the upper guide rod 17 at a position corresponding to the stroke end on the left side of the scanning member C. In this case, the spring seat piece 24 is fixed, but the guide rod 1
7 is horizontally suspended on the frame 5 so as to be slidable left and right, and is moved 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. energized, thereby causing scanning member C
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 C collides with the spring seat piece 24,
The spring 26 is compressed by the collision force, and the guide rod 17 is displaced to the left with respect to the frame 5 together with the scanning member C, and this displacement causes the stopper 40 to operate.
With this actuated stopper 40, the scanning member C
This structure is designed to prevent rightward movement due to the reaction after the spring 6 is compressed. Next, this configuration will be described in detail with particular reference to FIG. 4.

The stopper 40 is plate-shaped and is pivotally mounted on a stopper 41 attached to the left end wall of the frame 5 by a pivot 42 so as to be horizontally rotatable.

The stopper 40 has one side extending from its pivot point (pivot 42) to a position facing forward of the scanning member C at the position where it collides with the spring seat piece 24,
A hook portion 40' is formed at the tip of the negative side, while the other side extends rearward.

The stopper 40 is given a force to rotate clockwise in FIG. " 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 C. ing.

When the scanning member C returns from the right stroke end (reversed position) to the left stroke end (original position) -1 (leftward travel) and collides with the spring seat piece 24, the collision force causes As the guide rod 17 slides slightly to the left, the stopper 40 is pushed by the left end of the guide rod 17 and rotates counterclockwise in FIG. enters the travel range of the scanning member C.

In this way, the scanning member C 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 C moves to the right. It will be blocked from moving to the right and will have to stop.

On the other hand, as the scanning member C moves to the right due to reaction, the guide rod 17 slides to the right to return to its original state, and the stopper 40 is immediately rotated back by the action of the spring 43, causing the scanning member C to move to the right. Move further away.

Therefore, the stopper 40 engages the scanning member C for only a short time, and the scanning member C is immediately allowed to move to the right after being stopped by the stopper 40.

As a result of the above, the scanning member C immediately stops at a certain position (original position) without making a large reactionary movement after reaching the return position (original position), and immediately takes the next scanning position after reaching the above-mentioned position. This allows multi-stage scanning to be performed smoothly without any erroneous scanning.

Furthermore, only when the scanning member C is in the original position, the Hals motor a is energized and the card 1 is transferred.

Now, on the rear side of the scanning member C, as shown in FIG. 3, the card 1 inserted from the pattern card insertion slot 9 as described above is vertically positioned in front of the hanging part 14 of the cover 2. In order to scan one side of the card at a height, the reading element, that is, the so-called light receiving element, consists of a light emitting element and a light receiving element that receives reflected light that is reflected from the first side of the card and converts it into an electrical signal. Attach photoelectric sensor d.

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 during both strokes of the scanning member C (left row), but the electrical signals associated with the scanning of both of the reciprocating strokes 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 FIG. 1. On the white surface between the left and right perforations 1' and 1'',
A knitting pattern recording section 1p, which is a section for recording knitting patterns, and a function mark entry field 1f, which is a knitting function information recording section on the right side, that is, a section for recording function marks.
The grid dividing lines of the same color as the light emission color of the light emitting element of the scanning sensor d and which the light receiving element does not discriminate (for example, red when a red light emitting diode is used as the light emitting element) are printed or otherwise printed. It is created by displaying it in advance using the display method.

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

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 0 vertical lines to the right of it are regarded as the boundary line, and between them the picture (knitting pattern) corresponding to the unit pattern to be knitted is drawn. A pattern) is drawn solidly in black, for example, using an appropriate writing instrument such as a pencil.

For example, when knitting a unit pattern with 48 stitches in a horizontal row by selecting 4 pots of knitting needles as a unit of one group, the vertical line of the left edge and the vertical line of the silk stitch The purpose is to draw a picture within the range of .

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 filled grid, and this will be explained in detail later.

Further, 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 thereof is parallel to the vertical line of the knitting pattern entry field 1p.

The function mark entry field 1f is used to mark an arbitrary entry grid when performing a required function operation such as activating a notification means for notifying thread exchange or determining the feeding direction of the card 1 itself (for example, In this example, two of the filled grid columns (vertically arranged) are used to program the forward feeding of card 1, and the other to program the forward feeding of card 1. This is for programming the feed.

As mentioned above, in the knitting pattern entry field 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. The grid is scanned horizontally and linearly for each stage of the grid, and the electric signal for each stage of scanning is a square wave according to the mode of the knitting pattern in the first stage of the grid, that is, the horizontal scanning mode 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 function mark entered in the function mark entry field 1f also does not correspond to the knitting needle to be selected. Like the above knitting pattern, it is read by the scanning sensor d and becomes an electrical signal in the same electrical system, but these two types of electrical signals are separated from each other, and the electrical signal related to reading the knitting pattern is connected to the knitting needles. It is converted into a binary electrical signal that corresponds in a one-to-one relationship, and the electrical signal related to reading the function mark is also separated for each entry grid row (vertical row) in the function mark entry field 1f. Next, a sampling mechanism for performing such an operation, that is, a sampling operation, 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.
．． It is horizontally mounted parallel to 18.

The linear encoder 28 provides 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 in each criminal grid row of the knitting pattern entry field 1p.
A predetermined plurality of function mark sampling slits 28f are bored in a one-to-one relationship, and a predetermined plurality of function mark sampling slits 28f are provided for sampling the function marks.
The function marks are provided in one-to-one correspondence with each criminal 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 C, 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 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 slits 28p 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 seed sampling pulses, ie the sampling pulses for sampling the knitting pattern and the sampling pulses for sampling the function marks, are arranged to be separated from each other.

In this way, 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 accurate for each entry 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 culprit grid row in the knitting pattern entry field 1p along the scanning line of the scanning sensor d. A slit 8f corresponding to each criminal 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 entry grid and therefore one knitting needle, and depending on whether each entry grid is marked or unmarked, the binary number 71
It is converted into a binary electrical signal with a predetermined number of bits that determines whether it is J or ROJ, and all the bits are stored in a predetermined memory sequentially from left to right. The pointer 31 of the movable body 30 is rotated by turning the needle selection unit number setting index drive wheel 29, which partially faces above the pointer 29.
By aligning with the scale of the scale plate 32 provided below the transparent plate 15, the number indicated by the pointer 31 determines the number, which also determines the number of needle selection units. A mechanism for setting the number of needle selection units for setting the number of needle selection units will be described below.

The movable body 30 is mounted on the frame 5 so as to be able to slide left and right along a rail plate 33 horizontally suspended on the frame 5, and includes a right pulley 34r integral with the sliding wheel 29. The pulley 341 and the hook on the left side are connected to the sliding wheel 29 by a string 35, and by turning the sliding wheel 29, the sliding wheel 341 can be slid left and right.

The movable body 30 is provided with a reflecting plate 36 that is vertically disposed in pressure contact with the front surface of the card guide plate 8.

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

Therefore, the scanning sensor d is connected to this reflector 36.
, the output voltage of the scanning sensor d (specifically, the output voltage of the light receiving element) suddenly increases.

Therefore, a sudden increase in the output voltage of the scanning sensor d due to the above reasons is detected by a predetermined circuit, and the sampling sensor e scans the slit 28p of the linear encoder 28. The sampling pulses obtained by this are counted by a counter from the first pulse until the predetermined circuit performs the above detection, and the counted value of this counter is stored in a predetermined memory. Ru.

The above-mentioned memory storing the binary electrical signals related to the reading by the scanning sensor d is read out only for the stored number of bits as described above.

Therefore, the number of bits of the binary electric signal read out from this memory is determined by the number indicated by the scale of the scale plate 32 indicated by the pointer 31 of the moving body 30.

Note that the scale on the white plate 32 is made to correspond to the horizontal arrangement of the entry grid in the knitting pattern entry field 1p of the card 1, and by looking at the pointer 31 through the transparent plate 15 and making it correspond to the card 1, It is easy to see how much of the card 1 can be effectively read out from the memory.

The binary electrical signals stored as described above are read out repeatedly in sequence in accordance with the traveling timing of the carriage, and the electromagnet of one of the left and right knitting needle sorting mechanisms installed on the back side of the carriage that is to be operated effectively is used. The knitting needles are supplied through a code or the like to select a knitting needle (1 or 0) depending on the content of each bit of the read binary electric signal.

As described above, the position of the card 1 relative to the scanning line of the scanning sensor d is determined by loading the card 1 onto the card feeding roller 6, which is its feeding member. If the center is not facing accurately and is out of alignment, the knitting pattern and function mark programmed on card 1 will not be read correctly.

This can of course be avoided if the loading position of the card 1 by the card feed roller 6 and the scanning line of the scanning sensor d are in a positional relationship that does not cause the above-mentioned deviation when the present scanning device is assembled. It is possible for the manufacturer to cause assembly irregularities, and it is desirable to be able to correct the above-mentioned irregularities after the fact.

Therefore, in this scanning device, the lower guide rod 18 on which the scanning member C is slidably mounted can be moved up and down, and by moving this, the vertical position of the scanning member C is changed, This allows the height of the scanning line of the scanning sensor d to be adjusted, and this configuration, which is the focus of the present invention, will be described below.

As shown in FIG. 3, the traveling body 1 which is the main body of the scanning member C
9 allows the upper guide rod 17 to move vertically within the length range of the elongated hole 19' by passing it through a vertically elongated elongated hole 19'. This only prevents horizontal vibration back and forth, but since the bobbin 20 is fitted into the lower guide rod 18, it cannot move up and down, so this guide It is mounted on the rod 18.

The guide rods 18 are the left and right rising plates 51.5 of the frame 5.
r (Fig. 1), but it is not fixed to the rising plates 51, 5r, but the fifth,
As shown in Figure 6 (only the configuration of the right side rising plate 5r side is shown), the length of the long hole 5' is passed through the vertically long elongated hole 5' provided in the rising plates 51 and 5r. It can be moved up and down within a range.

The guide rod 18 has its left and right ends fitted tightly into the guide rod fitting holes 45' of an oval receiving plate 45, and immediately afterward, both left and right ends are supported in the same manner by this receiving plate 45. I am forced to do so.

In addition to the guide rod fitting hole 45', the receiving plate 45 is provided with a circular cam fitting hole 45'' on its lower side.

These fitting holes 45', 45'' are provided on the vertical center line of the receiving plate 45.

A circular cam 46 is fitted into the cam fitting hole 45#.

The head 46' of the cam 46 is located outside the receiving plate 45.

The cam 46 also has a screw through hole 4 at its eccentric position.
6'' is provided, and a screw 47 is inserted into this screw through hole 46''.
The cam 46 is inserted into the cam fitting hole 45 by screwing and tightening it into the screw hole of the rising plate 51 or 5r.
This prevents the receiving plate 45 from being pulled out from the opening plate 51, and thereby also fixes the receiving plate 45 to the rising plate 51 or 5r.

If the screw 47 is loosened and the cam 46 is rotated by hanging a screwdriver on its head 46',
The cam 46 connects the cam fitting hole 4 with its screw through hole 46'' as the center.
The eccentric rotation of the cam 46 causes the receiving plate 45 to be displaced upward or downward while being slightly tilted.

Therefore, the height of the scanning line of the scanning sensor d can be adjusted by performing eccentric rotation of the cam 46 on the left and right rising plates 51, 5r to raise or lower the guide rod 18. After completing the settings, it is sufficient to tighten the screw 47.

As described above, in the scanning device of the present invention, by eccentrically rotating the cams on both sides of the frame, the receiving plate moves up and down, and the guide rod moves up and down along the long holes on both sides of the frame. Furthermore, by tightening the screw to restrict the rotation of the cam, the guide rod can be fixed to the frame, making it possible to easily adjust the position of the scanning line of the photoelectric sensor.

In addition, since the cam is fitted into the cam fitting hole of the receiving plate and the guide rod is moved up and down by eccentric rotation of the cam, the position of the scanning line of the photoelectric sensor can be precisely and finely adjusted.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a plan view, Fig. 3 is a sectional view taken along the line I--I of Fig. 1, and Fig. 4 is a partially cutaway front view. The figure is a plan view of the component that prevents the recoil of the scanning member, Figure 5 is a side view of the mechanism for adjusting the movement of the guide rod on which the scanning member is mounted, and Figure 6 is a sectional view of the mechanism. be. 1...Knitting program card serving as an information recording medium, 6...Card feeding roller serving as a feeding member, 18
...Guide rod, 19...Traveling body, d...
...Photoelectric sensor, 5...Frame, 51
, 5r...Rising plates on both sides of the frame, 47.
...Screw, 46...Cam, 45...
...Socket plate, 45''...Cam fitting hole, 5'...
...Long hole.

Claims (1)

[Scope of utility model registration request] A recording medium transport mechanism that can vertically transport an information recording medium that records information such as a knitting pattern that represents the pattern to be knitted, a guide rod that is hung horizontally on the frame, and a slidably mounted device on the guide rod. In a scanning device for a knitting machine, the scanning device includes a suspended running body and a photoelectric sensor that is provided on the running body and optically scans the information recording medium as the running body runs and reads the information as an electrical signal. A cam is pivotally attached to each side of the cam by screws so as to be eccentrically rotatable, and each of the cams is fitted into a cam fitting hole of the receiving plate,
A scanning device for a knitting machine, wherein both ends of the guide rod are fixed to the receiving plate by passing through vertically long holes provided on both sides of the frame.