JPS5834585B2 - Amikino Senshinhouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a needle selection device for a flat knitting machine, more specifically, a knitting needle selection signal corresponding to a pattern to be knitted is stored in a storage device as an electric signal, and the needle selection signal is stored in a storage device as an electric signal. The present invention relates to a needle selection device for a knitting machine that reads electrical signals related to running and selects flat knitting needles according to the contents of the electrical signals.

In order to perform pattern knitting with this type of needle selection device, the electrical signals stored in the storage device must be effectively read out only while the carriage is traveling within a required range.

One method is to detect the left and right running reversal movement of the carriage with an appropriate detection means, and control the readout operation of the storage device based on the electric signal related to the detection, so that the movement of the carriage on the needle bed is controlled. It is conceivable that the above reading is performed only within the range between the left travel reversal position and the right travel reversal position, and pattern knitting is performed only within this range.

However, in this case, especially in the case of hand-knitting machines where the carriage often swerves from side to side in increments unrelated to knitting operations, the above readout may also occur even when knitting operations are not performed. The disadvantage is that misorganization occurs frequently.

The present invention does not have such drawbacks, and allows pattern knitting to be performed accurately only within an arbitrary range that has been arbitrarily positioned on the needle bed.

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

First, the overall outline of a hand knitting machine to which the device of the present invention is applied will be explained with reference to FIG. Record card 1 of the knitting pattern with
A scanning device A which can be loaded with a scanning member 2 and which is equipped with a scanning member 2 for optically scanning the organization pattern of the record, and operating means used to operate various mechanisms described below in addition to the scanning device A. A control box B is provided on the operation panel 3 and has various electric and electronic circuits described later inside, and the needle bed X can be moved in the length direction and set at a desired position in the length direction. Left and right cursors 41.4r for dividing the needle selection range are installed behind the needle bed A row of knitting needles (not shown in Figure 1) are arranged on the needle bed
A pair of knitting needle selection mechanisms CI and Cr are arranged at a predetermined length apart from each other on the left and right sides.

The scanning member 2 can move left and right following the movement of the carriage Y, but can only move within a predetermined left and right limited range, which corresponds to the above-mentioned left and right limited range of the carriage Y. While running the card 1, the knitting pattern recorded on the card 1 is scanned horizontally and linearly, and an electrical signal corresponding to the pattern is scanned horizontally and linearly, and the subsequent processing of the electrical signal is performed by an electronic configuration. Furthermore, power is supplied to the electrical components of the pair of knitting needle sorting mechanisms CI and Cr from the side of the knitting machine main body X via a laterally long current collector assembly D installed on the back of the carriage Y. The effective sorting is performed on one needle (in this embodiment, the one on the front side in the direction of movement of the carriage Y), and only the knitting needles within the interval range of the cursors 41 and 4r are subjected to the sorting (even the needles within this range are not affected). (except for those in the rest position, which do not receive any damage).

First, the specific configuration of the scanning device A will be explained with reference to FIGS. 2 to 4.

A card feed roller 5 for supporting the coupled pattern recording card 1 in a U-shaped folded state and feeding it in stages is parallel to the needle bed X and is rotatably mounted horizontally on a frame 6. ing.

Below this roller 5, there are two guide bars, front and rear.
70.72, parallel to each other (horizontally suspended on a frame 6, on which the scanning member 2 is mounted, so that it can slide left and right along it).

That is, as shown in FIG. 4, the scanning member 2 has horizontal through-holes 9 provided at two locations in front and behind the traveling platform 80.

92 is slidably fitted into the guide bars 7□, 7□.

The scanning member 2 is equipped with a photoelectric detection mechanism (not shown) at its tip (upper end), that is, a light emitting element and a light receiving element that receives reflected light that is reflected from the card surface and converts it into an electrical signal. A pipe-shaped scanner 10 is installed upright, and the scanner 10 scans the card 1 horizontally and in a straight line.

To explain Card 1 here, it has a knitting pattern entry field 11□ and left and right function mark entry fields 11□, 113 on its white surface between the left and right perforations 1', and the above-mentioned scanner. The light emitting element provided in the light emitting element shown in FIG.

In the above-mentioned knitting pattern entry column 11, among the grid dividing lines, the vertical lines are the dividing lines between the stitches, and the horizontal lines are the dividing lines between the knitting rows. Numbers and numbers representing the number of knitting stages are displayed in the same color as the grid division lines.

To be more specific, knitting pattern entry field 11 is 1
One minimum division corresponds to one stitch, the horizontal arrangement corresponds to one knitting needle, and the vertical arrangement corresponds to a knitting row, and n horizontal rows of stitches are arranged in one group. When knitting the unit pattern, consider the left vertical line and the vertical line n lines to the right as the boundary line,
In between, the picture (
The knitting pattern) is drawn solidly in black, for example, as shown in the figure, using an appropriate writing instrument.

For example, when knitting a unit pattern with 24 rows of stitches by selecting 24 knitting needles as a unit of one group, the range from the leftmost vertical line to the 24th vertical line It is meant to draw a picture inside.

At this time, if the outline of the picture is within the above-mentioned range, the inside of the picture may be filled solidly without filling the above-mentioned minimum divisions one by one.

This is because the reading is performed by sampling each minimum partition, which will be explained in detail later.

Left and right function mark entry field 11□.

Reference numeral 113 is for filling in an appropriate minimum section before performing a required function operation.

For example, when card 1 is fed to a certain point (card 1 is automatically transferred one pitch at a time after each scan of the scanning member 201, as will be explained later), the subsequent scanning In some cases, needle selection may not be performed, or card 1 may be automatically selected from there.
When sending the signal backwards or activating an appropriate alarm, the smallest section is filled in (for example, black) as a signal source or function mark for that purpose.

As mentioned above, in the knitting pattern entry field 11□ of the card 1, the knitting pattern representing the unit pattern to be knitted is drawn solidly, and the scanning member 2 draws this in the horizontal row 1 of the smallest section. It scans horizontally and linearly for each row, and as shown in Figure 11I, the electrical signals from the rows are scanned in accordance with the aspect of the knitting pattern in one horizontal row of the smallest section, that is, the manner of one scanning of the knitting pattern. If this is the only square wave, the electrical signal obtained by scanning will not have a one-to-one correspondence with the knitting needle to be selected, and the function mark entry fields 112, 11
The function mark written in 3 is also read by the scanning member 2 in the same way as the knitting pattern, and becomes an electrical signal in the same electrical system as in that case, but these two kinds of electrical signals are generated by the sampling pulse described below. The former is converted into a digital electrical signal corresponding to the knitting needle in a one-to-one relationship by the sampling pulse obtained by the generating mechanism in connection with the scanning of the scanning member 2, and the latter is extracted separately from the former. Next, the sampling pulse generation mechanism will be explained.

A flat through-hole 12 is formed in the scanning member 20 traveling base 8 between the horizontal through-holes 9□ and 92, and this through-hole 12
, between the guide bars 7, , 72, the frame 6
The pulse plate 13, which is horizontally suspended, is passed through the plate.

As shown in FIG. 3, the pulse plate 13 has, on its rear edge,
Groove 141 for sampling the knitting pattern...
... are arranged in rows, one by one, corresponding to the horizontal arrangement of the minimum section of the knitting pattern entry field 11□ of card 1, and a groove 142 for sampling the function mark is provided on the front edge. .143 .

As the scanning member 20 runs, the scanning member 20 optically reads the grooves 14 on the rear side of the pulse plate 13 and generates sampling pulses for sampling the knitting pattern. and a sampling pulse generator a2 that optically reads the grooves 142, 143, etc. on the front side and generates a sampling pulse for sampling the function mark. Yes (Figure 2).

That is, the grooves 14□ on the rear side and the grooves 142, 143 on the front side respectively correspond to the grooves 14□ on the rear side and above and below the through hole 12 penetrating the pulse plate 13. The light emitting elements 151, 152 and the light receiving element 16□ are located at
, 16□ are arranged in the hole so as to face each other.

As shown in FIG. Each time one minimum section in the knitting pattern entry field 11□ is scanned, one pulse is output, and the sampling pulse generator a2 outputs one pulse when the scanning member 2 scans one minimum section in the function mark entry fields 112 and 113. It will output l pulses every time.

The automatic transfer of cards 1 one by one is carried out as follows.

Limit switches 171 are provided on both left and right sides of the frame 6.
17r is provided, and when the left suppression plate 181 of the scanning member 20 traveling platform 8 operates the left limit switch 171, and when the right suppression plate 18r operates the right limit switch 17r. , said control box B
An electromagnetic device (not shown) installed inside is operated to rotate the card feed roller 5 by one pitch.

In addition, a connecting piece 19 made of magnetic material is provided on the traveling table 8 so as to protrude toward the front side (carriage Y side), and the front head of the connecting piece 19 is located behind the needle bed X of the knitting machine main body It fits into a horizontally elongated guide groove 20' of the power distribution wall 20, which is erected over almost the entire length of the power distribution wall 20, so as to be able to slide left and right, and the front surface of its front end head is exposed to the front surface of the power distribution wall 20.

On the other hand, the carriage Y has a magnet piece 22 at the same height as the linking piece 19 at the center of an oblong casing 21 made of a non-magnetic material attached to the rear side surface, and magnetic plates 23 on both upper and lower surfaces thereof.
1,232 was installed by adsorption.

Therefore, when the magnetic plates 230, 23□ on the carriage Y side face the linking piece 19 and attract it while the carriage Y is running, the scanning member 2 moves integrally with the carriage Y. However, the integral running is the connecting piece 1.
9 reaches the left end or right end of the guide groove 20' and the magnetic plates 230, 232 are no longer attracted to each other, and the travel ends, and the travel ends no longer.

That is, the scanning member 2 moves integrally with the carriage Y to the left or right only within the length range of the guide groove 20', and is unrelated to the movement of the carriage Y outside that range.

The scanning device A has the above-described configuration, and the scanning member 2 is scanned by the carriage Y running within the guide groove 20'.
scans the card 1, and the knitting pattern on the card 1 is created by sampling the knitting pattern on the card 1 using the sampling pulse from the sampling pulse generator a1, as shown in FIG. The digital electrical signals are read as corresponding digital electrical signals, and the digital electrical signals are stored in the storage device MEM (block in FIG. diagram,
The stored digital electrical signals are stored in the pair of knitting needle selection mechanisms C1, 1, 2 and 3 when the next right or left operation is performed by reversing the carriage Y. Each time one of the Cr parts that acts as an effective sorter corresponds to one knitting needle, that is, one bit is sequentially read out according to the traveling timing of the carriage Y, and the one that acts as an effective sorter acts depending on the bit content (1 or O). It is designed to control the knitting needle selection mechanism CI or Cr of the knitting needle selection mechanism CI or Cr, and these components will be explained next.

First, as the carriage Y travels, timing pulses, that is, timing pulses for reading digital electrical signals stored in the storage device MEM, are generated by the timing pulse generation mechanism according to the travel timing.
This will be explained with reference to FIG.

The current collector assembly D described above has two horizontally elongated metal plates 240 and 24□, which are both conductive and magnetic, to connect magnetic pieces 25... and non-magnetic pieces 26...
... and the metal plate 241.24
□ Between 0 and magnet pieces 25..., non-magnetic pieces 26
The reflector plate 27 is fixed over the entire length of the back surface of the carriage Y.
It is fitted into the horizontally elongated sheath-like part 21' of the casing 21 attached to the casing 21 so as to be slidable within a predetermined range on the left and right, and its back surface (FIG. 7) is inserted through the back opening of the sheath-like part 21'. exposed.

The exposed surface (back surface) of the reflector plate 27 is a light reflecting surface, but a large number of rectangular holes 27' forming a non-reflecting surface are formed along almost the entire length of the reflecting plate 27 with a needle. The knitting needles 28 are arranged in rows on the floor X at the same spacing as the pitch of the rows of knitting needles 28.

On the other hand, the distribution wall 20 is equipped with a timing pulse generator (i.e., a light emitting element) that generates timing pulses according to the travel timing of the carriage Y by irradiating the reflection plate 27 on the front surface thereof and detecting the reflected light. and a light-receiving element) 29 are fixedly arranged at intervals slightly shorter than the length of the reflecting plate 27.

Therefore, a plurality of timing pulse generators 29...
At least one of them always faces the reflecting plate 27, and when the carriage is moved, the reflecting plate 27 moves accordingly, causing a timing pulse to be generated facing it. It is clear from the device 29 that a timing pulse is output every time the carriage Y moves by one pitch of the knitting needles, as shown in FIG. 11V.

In this way, the plurality of timing pulse 2 generators 29, which generate timing pulses while alternating sequentially every time the carriage Y travels a predetermined distance, are connected to one output system. From the output system, carriage Y is the needle bed
Regardless of the position of the timing pulse generator, the timing pulses are continuously outputted as if the timing pulses were supplied from one timing pulse generator.

Therefore, the digital electrical signals stored in the storage device MEM mentioned above can be read out in accordance with the traveling timing of the carriage Y, regardless of the position of the carriage Y.
In this storage device, as described above, the digital electric signals are stored separately for the left scanning and the right scanning as the scanning member 2 moves along the carriage Y. This must be done in accordance with the running direction of the carriage Y.

Therefore, next, a carriage running direction detection mechanism for detecting the running direction of the carriage Y will be explained in order to store the digital electric signal in the storage device MEM and read it out according to the running direction of the carriage Y. do.

As mentioned above, the upper and lower two metal plates 248 and 242 of the current collector assembly D are magnetically charged, and the protruding portions 24'1 and 24'2 at multiple locations at their rear ends are connected to the power distribution wall 20. It is constantly attracted to a horizontally elongated conductive plate 30, which is a conductive material and also a magnetic material, which is attached to the entire front surface of the board through an electrically insulating material.

As described above, the current collector assembly D is fitted into the sheath-like portion 21' of the casing 21 so as to be slidable within a predetermined range, and the current collector assembly D is fitted in the sheath-like portion 21' of the casing 21 so as to be able to move freely within a predetermined range. After the carriage Y is moved to the right sliding limit position relative to the casing 21, it moves together with the carriage Y, and contrary to the above, when the carriage Y is moved to the right, it slides to the left sliding limit position. After being forced to do so, they will move with it.

That is, as the carriage Y is reversed in its running, the current collector assembly D is moved to the left and right with respect to the casing 21.

This current collector assembly D is shown in Figure 7 (rear view).
As shown in detail in , the piece 311 is
The casing 21 is provided with a resilient switch piece 33 and a terminal 34 inside the set 321 that receives the pieces 311.
When moving to the left, the current collector assembly D is biased to the right, so the piece 311 is separated from the switch piece 33, and the switch piece 33 is separated from the terminal 34, resulting in an electrically non-conducting state. When Y moves to the right, the current collector assembly D is biased to the left, so the switch piece 33 is pushed by the piece 311 and comes into contact with the terminal 34, making it electrically conductive.

Therefore, the switch piece 33 and the terminal 34 constitute a kind of limit switch, and thus also constitute a carriage traveling direction detecting means d, which is a contact provided on the right side of the back surface of the casing 21, as shown in FIG. Piece 35
The contact piece 35 is electrically connected to the lead means 36.
However, the front surface of the distribution wall 20 has a conductive plate 3 attached along almost its entire length.
7 (see Figure 2-4),
The carriage traveling direction detecting means d is electrically connected to the necessary electrical and electronic circuit elements housed in the control box B on the side of the knitting machine main body X, and as shown in FIG. It outputs a binary electrical signal that inverts from "H" to "L" or vice versa.

Thus, this binary electrical signal causes the storage device M
The EM is controlled, and storage and reading of digital electric signals into it are performed according to the traveling direction of the carriage Y, and the read digital electric signals are transferred to the pair of knitting needle selection mechanisms C1 and Cr. It is necessary to supply one of the two to have an effective sorting effect.

Therefore, next, the digital electric signals read above are transferred to the knitting needle sorting mechanisms CI, Cr according to the traveling direction of the carriage Y.
A switch mechanism for switching and supplying the power will be explained with reference to FIGS. 5 to 7.

As mentioned above, the upper and lower two metal plates 2 of the current collector assembly D
41,242 is both a conductor and a magnetic material,
It is in constant contact with the conductive plate 30 on the side of the knitting machine main body X, which is also a conductive material and a magnetic material.
In other words, power can be supplied from the X side of the knitting machine body.

These two metal plates 24. ．． 242 is provided with notch holes 24 that penetrate vertically and have a predetermined length on the left and right at two locations on the left and right.
1 and 24r, and a conductive piece 381.38r embedded in the casing 21 passes through each of them.

When the carriage Y is on the left, the current collector assembly D
is shifted to the right, so that the right conductive piece 38r
It engages with the left edge of the notch hole 24r on the right side, and only that part is electrically connected to the conductive plate 30 on the side of the knitting machine body
Only 1 is electrically connected to the conductive plate 30.

As shown in FIG.
The conductive piece 381 on the left side is electrically connected to the electromagnet 40 of the knitting needle selection mechanism Cr on the right side by a lead means 41.

Therefore, the digital electric signal from the side of the knitting machine body X is supplied to the electromagnet 40 of the knitting needle selection mechanism CI on the left side through the conductive piece 38r on the right side when the carriage Y is on the left side.
In addition, the sharpener in the right row is supplied to the electromagnet 40 on the right side through the conductive piece 381 on the left side, and is connected to the conductive piece 3 F31738.
r and the notch holes 241.24r are, so to speak, left and right switch means El for switching the supply of the digital electric signal.

It can be said that it constitutes Er.

Next, regarding the left and right knitting needle sorting mechanisms CI and Cr, the fourth
Referring to Figures 5, 6, 8, and 9, both have substantially the same structure, although the arrangement of component parts is symmetrical.

The electromagnet 40 mentioned above is installed on a carriage base plate 41, and the upper and lower magnetic pole plates 42□, 422 have horizontal portions 43a of magnetic conductive bodies 43 and 44 integrally molded with magnetic material, respectively.
, 44a are joined from above and below, respectively, and different magnetic poles are excited in both magnetic conductors 43 and 44 by excitation of the electromagnet 40.

On the other hand, a bat guide 45 made of a non-magnetic material is fixed to the lower surface of the carriage stand and plate 41.

This bat guide body 45 has a bat passage 45a that is long in the left and right directions on its lower surface, and in the bat passage 45a,
The butt 28' of the knitting needle 28 set at the needle selection receiving position can be received through the side cam 46.

The front and back of the Konohatsu passage 45a are almost the same as those of the butt 28', and its upper wall surface is a tapered surface where the outer half 45b on the outside as seen from the carriage Y descends inward, as shown in FIG. , the inner half 45c is the bat 2
The horizontal plane is slightly lower than the normal height of 8' (solid line in Figure 4).

Therefore, in the process of passing through the bat passage 45a, the bat 28' is gradually pushed down from the middle of the outer half 45b against the leaf spring 47 (FIG. 4), and comes into pressure contact with it at the inner half 45c. , it passes through the butt passage 45a in a state in which it fits snugly therein, and then returns to its normal height again by the action of the leaf spring 47.

In the butt guide 45 having such a structure, the one magnetic conductor 43 continues from the hanging portion 43b to the carriage base plate 4.
The outer lower end portion 43d of the vertical extension portion 43c extending left and right on the lower side of the bat guide member 45 is embedded in the wall thickness of the bat guide 45, and the flat lower end surface of the outer lower end portion 43d is placed above the bat passage 45a. It is flush with the inner half of the wall, and the inside of the bat passage 45a faces almost to the center.

Furthermore, in this magnetic conductor 43, the lower edge of the central lower end portion 43e, which is a part of the vertically extending portion 43c and extends inwardly following the outer lower end portion 43d, is gradually inclined downwardly toward the inside. The front side of the lower edge is chamfered 43'e as shown in Fig. 9 (cross section taken along line 00-0 in Fig. 8).
It has been done.

The other magnetic conductor 44 is provided with a notch 44d between an outer half 44b and an inner half 44c of the vertical part that hang down from the front end of the horizontal part 44a and extend left and right. The magnetism acts on the outer half 44b, but hardly acts on the inner half 44c.

The magnetic conductor 44 has its vertical portion hanging down along the rear wall surface of the bat guide body 45 which is inclined rearward inward from the inner end of the bat passage 45a, and the magnetic conductor 44 has its vertical portion hanging down along the rear wall surface of the bat guide body 45 which is inclined rearward inward from the inner end of the bat passage 45a. The outer half portion 44b has a horizontal width t (FIG. 8) that is approximately the same as the row pitch of the knitting needles 280, and is located behind the outer lower end portion 43d of the one magnetic conductor 43, and further than the lower edge height of the outer half portion 44b. It hangs down to a low position, with its outer end facing the rear wall of the bat passage 45a.

Thus, the knitting needles 28 with the batts 28' fitted into the batt passages 45a are selected in the following manner.

The bat 28' that has entered the bat passage 45a is moved to the carriage Y.
As it runs, it is gradually pushed down while its front and rear movements are restrained, and the head end is pressed against the lower end surface of the outer lower end 43d of one magnetic conductor 43, and only while passing through the same, the other magnetic conductor 44 The rear surface is brought into pressure contact with the front surface of the outer half portion 44b.

If the electromagnet 40 is in an excited state during this t-mountain, that is, while the carriage Y is traveling for one pitch of knitting needles, the magnetic conductor 43 is excited to have different magnetic poles, for example, the south pole and the north pole, so that both the magnetic poles are excited. Butt 28' between the magnetic conductors
A kind of magnetic path is formed through the magnetic conductor 43, and the outer lower end 43d of the magnetic conductor 43 is straight, but the outer half 44b of the magnetic conductor 44 is straight.
Because it is angled rearwardly, bat 28' will be biased slightly rearward along its outer half 44b.

This rearwardly biased butt 28', as shown in detail in FIG.
By disposing a magnet piece 48 between the rising portion 44e of the magnetic conductor 44 (which is not subjected to the 00 action) and the rising portion 43f of the magnetic conductor 44, the magnet is attracted to the inner half portion 44e (the position indicated by the dotted line in Figure 9). , further deviates rearward and rises to a steady height on the rear side of the downwardly inclined central lower end 43e of the magnetic conductor 43, and further advances to push open the opening/closing piece 50, which is closed by the action of the spring 49, to open the carriage. It passes through a rear guide path formed by a group of cams arranged on the back side of the Y.

On the other hand, when the electromagnet 40 is in a de-energized state, the butt 28'
is not attracted by the inner half 44b of the magnetic conductor 44, so it travels straight, and the chamfer 43'e of the lower edge of the magnetic conductor 43
The magnetic conductor 43 is guided by the magnetic conductor 43 (the position indicated by the chain line in FIG. 9), and further advances to pass through a front guide path different from that in the case of excitation.

Note that a compensating magnet piece 5 is attached to the hanging portion 43b of the magnetic conductor 43.
1 is attached in such a way that its magnetic pole is oriented in a direction that cancels out the magnetic pole of the electromagnet 40, so that the electromagnet 4
This is to eliminate the residual magnetism that exists in the non-excited state after zero excitation, thereby making it possible to perform the sorting operation more reliably.

The knitting needles 28 that have entered the butt passage 45a are subjected to the sorting action one by one as described above, but even if the knitting needles 28 that have entered the butt passage 45a are outside the range of the left and right cursors 41 and 4r mentioned above, If the electromagnet 40 is located at Next, such a configuration will be explained.

The casing 21 on the back side of the carriage Y has a similar cavity 32r (FIG. 5) on the right side as well as the cavity 321 on the left side (FIG. 1), in which the current collector assembly D is inserted. The piece 31r on the left is placed in the opposite direction to the piece 311.

The casing 21 is a clay wall of the left and right empty parts 321° 32r, and the left and right movable magnet pieces 521 are located on the rear extension line of the sorting point (width part) of the left and right knitting needle sorting mechanisms CI and Cr. 52r so as to be vertically slidable along the respective guide holes.

These two rotating magnet pieces 521 t 52 r are the pieces 311.
31 move up and down depending on the movement of This is a relationship where the situation is the opposite.

On the other hand, the cursor 41.4r is mounted on the forward tilted part of the upper end of the switchboard 20 so as to be able to slide left and right,
Each is equipped with a reed switch 53 on its bottom surface,
It is electrically connected to a horizontally long conductive foil 55 attached to the entire length of the forward-slanted lower surface of the power distribution wall 20 via a contact piece 54 having a spring force, and both reed switches 53 are connected to each other when the cursors 41, 4r are Even if it is in the position shown in FIG.

Therefore, the reed switch 53 is positioned above the traveling line of the movable magnet pieces 521 and 52r on the carriage Y side, and when the carriage Y is running to the left, the left movable magnet piece 521 is in the raised position. Depending on the case, when it is directly under the left cursor 41, its reed switch 5
3 is turned on and the pulse shown in FIG. The pulse shown in Figure 2 is changed, and only during the interval between these two pulses is the memory device MEM
The digital electrical signals stored in the memory are sequentially read out and sorted as described above, and during this time, a loose pattern is formed.The present invention is characterized in this respect.
It can be said that r constitutes a pattern knitting end indicating means for indicating the pattern knitting end.

The mechanical configuration is as described above, and next, the overall electrical and electronic configuration will be explained with reference to FIGS. 10 and 11.

The binary electric signal from the scanning member 2 (Fig. 11 ■) and the sampling pulse ■ from the sampling pulse generator a1 are applied to the storage and readout control circuit F, where the signal ■ is sampled and converted to ■. The digital electric signal shown in FIG. This is done at a predetermined address related to the direction.

That is, the memory addressing circuit G includes an up/down counter and counts the sampling pulses (2) from the sampling pulse generator a1. The addition and subtraction operations can be switched between the left and right rows of the knitting pattern recording card 1, and the knitting pattern entry field 11 60-bit digital electrical signals related to scanning are temporarily stored in the storage device MEM.
In addition, the data obtained by the left row of the scanning member 2 and the data obtained by the right row are stored separately at predetermined addresses.

On the other hand, the stored digital electrical signals are read out as follows.

The pulses ① and ② from the cursors 41 and 4r are generated by an effective needle selection range indicating signal forming circuit H consisting of flip-flops and the like.
As a result, a signal (■) corresponding to the pulse interval from both cursors 41t4r is formed, and this signal is added to an effective timing pulse forming circuit (■) consisting of a gate circuit, etc., from which the cursor 415
The number of timing pulses X equal to the number of 28 knitting needles between 4 and r is outputted one by one every time the carriage Y moves by one pitch of the knitting needles.

This timing pulse X is applied to a carriage position detection circuit J including an up/down counter, and is thereby added or subtracted according to the traveling direction of the carriage Y.

Incidentally, the count value of this detection circuit J is arbitrarily set by unit pattern knitting stitch number setting means K (this manual operation section is located on the operation panel 3 of the control box B), which is a count value presetting means (this manual). 12 in the example), and by adding or subtracting a set number of timing pulses X, the same value (parallel binary electrical signal) is repeatedly obtained as shown in (2).

In other words, this carriage position detection circuit J
It can be said that the knitting needles 28 between 1.4 and r are numbered repeatedly in a certain direction.

The output of this detection circuit J is supplied to the storage and readout control circuit F as a readout address designation signal for the storage device MEM only while the effective needle selection range instruction signal (2) is being output, and is not stored. In this example, the 12-bit digital electrical signal from O to 11 is read out repeatedly, and the signal shown in is supplied to a drive signal forming circuit including an AND circuit, and is sent as a binary electric signal during the "H" output of the signal (2) to the switch means El or Er, which selects one knitting needle on the side that performs an effective sorting operation. Mechanism C1 or Cr
is output to the electromagnet 40.

In this way, the knitting needles 28 between the cursors 41t4r are drawn between the minimum section at the left end of the knitting pattern entry field 111 and the minimum section 12 to the right of it, with 12 needles as one block, as shown by X■. The knitting patterns are sorted according to the form of the knitting pattern (for example, in FIG. 11, the shaded patterns are backward biased, and the ones that are not shaded are forward biased).

By the way, as is clear from the above, the knitting pattern entry field 11 of the card 1 is scanned over the entire length of the left and right ends, and all bits of the digital electrical signal obtained by one scan are stored in the storage device MEM. However, the number of bits read from it is determined by the unit pattern knitting needle setting means K.
For example, if it is set as "12", even if the knitting pattern is recorded further to the right of the 12th minimum section from the left edge on the knitting pattern entry field 11□, It is scanned and stored in the -6 memory MEM, but it is not read out as a signal for making a needle selection.

With the above configuration, it is possible to knit a unit pattern according to the knitting pattern on the card 1, but the main knitting machine further changes the actual knitting pattern from the above without changing the knitting pattern. This can be changed by operating the operating members on the operating panel 3 (FIG. 1), which will be explained next.

The pattern left/right reversing means M is such that the output electric signal is reversed from "H" to "L" or vice versa as shown in (■) by a switching operation of its operating section. The output ■ of the traveling direction detecting means d is compared (exclusively ORed) in a comparison circuit N, and the addition/subtraction direction of the up/down counter of the carriage position detection circuit J is specified by the comparison signal ■. It has become so.

Therefore, the counted value of the carriage position detection circuit J determines whether the carriage Y travels in a certain direction and then takes the above-mentioned relationship X or X.
It is determined based on the operation of , and even if the knitting pattern on card 1 is the same, the knitted pattern in the cases of ■ and X■ is as if the left and right are reversed. .

Next, the needle selection mode reversing means P outputs an electric signal similar to that of the pattern left/right reversing means M by switching its operation section, and supplies it to the drive signal forming circuit. By operating this means P, it is determined whether the output from the drive signal forming circuit will be like the above-mentioned XVI or a signal obtained by inverting it.

Therefore, by operating this means P, the front and rear sorting mode of the knitting needles 28 can be reversed, and thereby the card 1
This allows the ground pattern of the knitted pattern to be reversed without changing the knitting pattern above.

Note that in the above, storage in the storage device MEM is performed for all bits of digital electrical signals related to one-stage scanning;
In this readout, only those with a set number of pits are retrieved and unit pattern formation is performed.
Substantially the same implementation can be achieved even if the above-mentioned storage is carried out for only the bits of the set number of bits and all of them are read out.

In summary, the present invention includes a pulse generator that generates a pulse every time the carriage moves by one pitch of the knitting needle, a counter that inputs and counts the pulse, and a system that is compatible with the pattern to be knitted. A storage device for storing the digital electrical signals of the digital electrical signals stored in the storage device, by addressing the storage device using the output signal corresponding to the count value of the counter, the storage device stores the carriage of the digital electrical signals stored in the storage device. In a needle selection device for a flat knitting machine that reads the needle corresponding to the relevant position on the needle bed and selects the knitting needles according to the content, a pair of left and right needles are set at any position in the longitudinal direction of the needle bed. a pattern knitting end indicating means (cursors 41, 4r in the embodiment), and a means for outputting a necessary electrical signal when a specific part of the carriage passes the pattern knitting end indicating means in relation to the traveling of the carriage. The reed switch 53) in the embodiment is operated by the above-mentioned required electric signal, and the pulses output from the above-mentioned pulse generator are input to the above-mentioned counter only when the carriage is between a pair of upper, lower, left and right pattern knitting end indicating means. (effective needle selection range indication signal forming circuit H in the embodiment), and only the knitting needles located between the left and right pair of pattern knitting edge indication means are controlled based on the digital electric signal. This feature is characterized in that the needles are selected by

Therefore, according to the present invention, a pair of left and right patterns.

By means of the knitting end indicating means, the width to be knitted and its position on the needle bed can be arbitrarily determined in advance.

'Furthermore, it is possible to immediately and clearly know in which range on the needle bed the pattern will actually be knitted simply by visually observing the left and right pattern knitting end indicating means.

Further, as long as the carriage is positioned corresponding to the left and right pattern knitting end indicating means, and this is electrically detected, and the carriage is not between the left and right pattern knitting end indicating means, the reading operation of the storage device, and therefore the knitting needle Since no effective needle selection operation is performed, as in the case where the left and right running reversal of the carriage is detected and the storage device is read only while the carriage is running between the left and right inverted positions, The reading operation of the storage device is performed by small right and left reciprocating movements unrelated to the knitting operation of the carriage, which does not have the disadvantage that misknitting occurs frequently, and the arbitrary movement determined by the left and right pattern knitting end indicating means Pattern knitting can be performed accurately only within the range of .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention when applied to a hand knitting machine, FIG. 1 is a schematic plan view of the entire hand knitting machine, and FIG. 2 shows a scanning device and a power distribution wall on the side of the knitting machine main body. Front view of them, 3rd
The figure is a plan view of the scanning device, FIG. 4 is a vertical sectional view of the entire hand knitting machine, FIG. 5 is a partially cutaway plan view of the carriage, FIG. 6 is a partially cutaway back view of the carriage, and FIG. The figure is a rear view showing the casing attached to the back of the carriage and the current collector assembly fitted therein, FIG. 8 is a cross-sectional view showing the knitting needle selection mechanism, and FIG. 9 is a line taken along the line 00-0 in FIG. The position cross-sectional views and FIGS. 10 and 11 are a block diagram and a time chart showing the electrical and electronic configuration. Y... Carriage, X... Needle bed, 29.
...Timing pulse generator, MEM...
・Storage device, CI, Cr...Knitting needle selection mechanism, 4
1t4r... Left and right cursors serving as pattern knitting end indicating means, 53... Means for outputting a required electrical signal while a specific portion of the carriage passes through the pattern knitting end indicating means. Reed switch, H... Effective needle selection range indication signal forming circuit which is means for controlling pulse input to the counter.

Claims (1)

[Claims] 1. A pulse generator that generates a pulse every time the knitting needle moves one pitch in relation to the travel of the carriage, a counter that inputs and counts the pulses, and a digital electrical signal system that corresponds to the pattern to be knitted. By addressing the storage device using the output signal corresponding to the count value of the counter, the storage device stores the digital electric signal on the needle bed of the carriage. In a needle selection device of a flat knitting machine that reads out the needles corresponding to the positions and selects the knitting needles according to the contents, a pair of left and right pattern knitting ends are set at arbitrary positions in the longitudinal direction of the needle bed. an indicating means; a means for outputting a required electrical signal when a specific portion of the carriage passes through the pattern knitting end indicating means; and a means which is operated by the required electrical signal to cause the carriage to knit the pair of left and right patterns. means for controlling the pulses output from the pulse generator to be input to the counter only when the pulses are between the pair of left and right pattern knitting edge indicating means. A needle selection device for a flat knitting machine, characterized in that only certain knitting needles are selected based on the digital electric signal.