JPS6036493B2 - Horizontal needle push control device for Jaccard machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a Jacquard machine that uses a special magnetic tape or the like as a command means in place of the original paper stamp (perforated card) and its cylinder, and uses a solenoid type electromagnetic The present invention relates to a horizontal needle push control device for a Jacquard machine that directly and selectively pushes and controls the horizontal needles by exciting an actuator.

Conventional devices of this type have an electromagnetic device section that is equipped with solenoid-type electromagnetic actuators arranged in a group corresponding to the number of horizontal stitches of the Jacquard machine, and is placed at a separate location behind or in front of the Jacquard machine. Each electromagnetic actuator of the electromagnetic device section is individually connected to the rear end or front end of each horizontal needle of the Jacquard machine using a contact cord or a flexible wire (release) sheathed in a tube. Then, each electromagnetic actuator is individually and selectively energized by an electric signal command from a signal device using a magnetic tape or the like disposed at a different position, and this actuating force is used to transmit a signal via a communication cord or flexible wire. A device in which the cross needle is selectively pulled or pushed has been considered. However, in such a conventional device, the communication between each electromagnetic actuator and the service needle by means of communication cords or flexible wires forms an extremely large and complex communication network corresponding to the number of Jacquard machines. Due to the excitation of the electromagnetic actuator, the horizontal needle is pulled or pushed through the communication cord or flexible wire, and it is difficult to achieve a light and smooth pushing movement, requiring a fairly strong force. Therefore, it is necessary to make the solenoid of each electromagnetic actuator considerably large, making the entire electromagnetic device extremely large. There are disadvantages such as the need for electricity and the need for a separate large power supply unit, and generally speaking, if you try to implement this type of device, it will be more expensive in terms of equipment than the original jacquard machine that uses patterned paper. It was extremely large and required major equipment changes, and the equipment and operation and maintenance costs were extremely high.In this respect, it was a device with little practical value. Therefore, the present invention eliminates the drawbacks of the conventional device as described above, and makes the entire device compact and inexpensive.
It can operate with small electric power and can reliably control the selection and pushing of the horizontal needle.
To provide a highly practical device that can be easily used by only partially replacing the original Jacquard machine using pattern paper.

A horizontal needle pushing control device for a Jacquard machine according to the present invention devised for this purpose includes a selection device 10 for a horizontal needle to be pushed provided at one end side of a horizontal needle 7 of a Jacquard machine 1; 1
The selection device 10 is equipped with an electric signal output device 22 that provides an electric signal for controlling the operation of 0', and the selection device 10 has a plurality of electromagnetic actuators 13 arranged in a device frame 11 corresponding to each horizontal needle 7 of the Jacquard machine. A stationary magnetic frame 14 that provides each actuator 13 with N and S magnetic poles for actuation.
Each actuator 13 has its rear end pivoted to the device frame 11 by a pivot 33 so that its tip end can be moved between the corresponding north and south magnetic poles of the magnetic frame 14. An excitation winding 32 for selectively exciting the magnetic body 31 by an electric signal from the electric signal output device 22 is wound around the outer periphery of the attached rod-shaped magnetic body 31. Magnetic pole plates 34 made of a magnetic material are arranged at a plurality of intervals so as to be located between each row of the actuator 13, and a permanent magnet 35 is installed between each of the plates 34. , so that adjacent and opposing parts of the plate members 34 are provided with a common N-pole and S-pole magnetism for the operation of one row of the actuators 13, and each of the actuators 1
3, the tip side of the magnetic body 31 is attracted to the corresponding N pole of the magnetic frame 14 according to the polarity of excitation to the excitation winding 32 by the electric signal from the electric signal output device 22. It has two rotational operation positions: a position where it is attracted to the S pole and a position where it is attracted to the S pole, and in one of these two operation positions and the other, the corresponding horizontal needle 7 is directly or a separate member 1
5 is characterized in that it selectively occupies a position where it can be engaged and a position where it cannot be engaged.

According to this component device of the present invention, the electrical signal output device 22
Each electromagnetic actuator 13 in the selection device 101 is selectively excited by an electric signal from the selector 101, and the position where each actuator 13 is attracted to the corresponding N pole of the magnetic frame 14 is determined according to the trough of the excitation. Since the push movement of the horizontal needle 7 is selectively controlled by taking two rotational operation positions, including the position where it is attracted to the S pole, the rotation of changing the position between the two positions of each actuator 13 in this case is The motion is reliably performed simply by applying an electric signal as an instantaneous pulse signal from the electric signal output device 22, and can be operated accurately and smoothly with a small amount of electric power, and high-speed operation is possible without problems.

Particularly, according to this configuration device, each actuator 13 in the selection device 101 is attached to the device frame 10 by a pivot 33 on the rear end side so that the tip end side is movable between the corresponding N pole and S pole of the magnetic frame 14.
The excitation winding 32 is wound around the outer periphery of a rod-shaped magnetic body 31 pivotally connected to A plurality of magnetic plates 34 made of magnetic bodies are arranged at intervals,
Permanent magnets 35 are sandwiched between the ends of each of the plates 34, and adjacent and opposing ones of the plates 34 have a common N pole and S pole for actuating one row of the actuators 13.
The structure is simple and compact because it provides a groove property with the pole, and no matter how small the arrangement pitch of the horizontal needles 7 is for a jacquard machine, the pitch corresponding to the pitch can be adjusted. It is possible to construct a device in which the actuators 13 are arranged in a state in which they operate smoothly without any problem. That is, the actuator 13 does not have a magnetic body movably disposed in a fixed cylindrical excitation winding, as is conventionally thought, but instead has a movable excitation winding 32 that is integrated with the magnetic body 31 itself. This is because the magnetic frame 14 is not provided with a permanent magnet for each actuator 13, as is usually thought, in order to operate a single row of actuators 13. In common, the horizontal needle 7 is composed of an array of plates 34 made of magnetic material with permanent magnets 35 sandwiched at the ends to provide gutter properties of N and S poles. No matter how small the arrangement pitch is, each actuator 13 and the magnetic frame 14 can be arranged with sufficient margin accordingly, and the selection device 10 can be constructed with a simple and compact structure. 10 can be used interchangeably with a regular jacquard machine by replacing the original paper pattern cylinder and utilizing its mechanical reciprocating mechanism as is. Embodiments of the apparatus of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows an example of the device according to the invention.

In the figure, the main components of a conventionally known jacquard machine are indicated by the reference numeral 1, and its structure is such that the upper end hook portion is appropriately hooked to the knife 3 of the vertically movable knife box 2 and selectively moved vertically. The vertical needles 4 are connected to an opening cord 5 at the lower part and arranged and supported on the bottom plate 6, and the horizontal needles 7 that engage with the vertical needles 4 for pushing and controlling each vertical needle 4 are connected to the rear opening plate 8 and the above-mentioned. Auxiliary opening plate 9
The array is supported by At the tip of the horizontal needle 7 immediately in front of the auxiliary opening plate 9 at the front of this Jacquard machine 1, there is a
As a countermeasure to this, a selection device for the horizontal needle to be pushed in place of the paper spinning cylinder, that is, a horizontal needle selection device 10, is proposed to be installed at the location where the paper spinning cylinder should originally be installed.

The horizontal needle pushing device 10 is equipped with a box-shaped device frame 11 that is approximately the same size as the original paper spinning cylinder, and the device frame 11 can be used for the crankshaft of a loom, etc. like the original paper spinning cylinder. In order to push the horizontal needle 7, the horizontal needle 7 is moved in the length direction by a batten 12 as shown in the figure or other appropriate driving means driven by a suitable drive method such as a rod drive, shaft drive, or chain drive. The reciprocating motion is said to be mechanical.

At the rear of the device frame 11, a solenoid-type electromagnetic actuator 13 movable by electrical excitation is installed at a pitch equal to the pitch of the horizontal needles 7 in accordance with the arrangement of the horizontal needles 7. They are arranged in such a way that they face each other.

The tip of each electromagnetic actuator 13 faces into each spot of the shelf-shaped magnetic frame 14 corresponding to the arrangement thereof, and the tip of each electromagnetic actuator 13 faces the spot of the shelf-like magnetic frame 14 corresponding to the arrangement thereof. Furthermore, the push rods 15 are arranged near and opposite to the rear ends of the push rods 15 that mediate the pushing movement of the horizontal needles 7 arranged in the front.
Each push rod 15 has a base 31 at the front of the device frame 11.
The push rods 15 are slidably inserted through the front plate 17 which is elastically supported at appropriate intervals so as to be accessible at the front plate 17, and at the tip of each push rod 15 protruding from the front plate 17, a slightly thickened cap-shaped head 18 is provided. are formed, and their heads 18 are respectively opposed to the tips of predetermined horizontal needles 7. Further, each push rod 15 is always biased rearward by a spring 19 equipped therein so that its head 18 is in contact with the front plate 17, and in this state it protrudes forward by a predetermined length beyond its head 18. Bumper members 20 for supporting the auxiliary □ board 9 are provided protruding from both left and right sides of the front board 17. The solenoid winding of each electromagnetic actuator 13 is connected to the rear terminal plate 21, and
A signal device 22 installed at an appropriate location, for example near the loom, separate from the device 10 is electrically connected with a cord 23, and each electromagnetic actuator 13 is activated based on an electric signal command from the signal device 22. It is adapted to be actuated by individual energization of its solenoids.

The signal device 22 may be, for example, a magnetic tape or floppy disk magnetically recording the desired push/non-push selection control signals for each horizontal hand similar to those conventionally used in this type of device, or a perforated selection control signal. A recorded perforated tape or perforated disk is used as a command means, a magnetic head is used in the case of a magnetic tape or a floppy disk, and a phototransistor or laser light device is used as a reading means in the case of a perforated tape or perforated disk, and the reading means is The solenoid of each electromagnetic actuator 13 selects either the forward or reverse current direction and energizes it appropriately via the storage device and the power supply device.In this case, the storage device and the power supply device are connected to the signal device. Pushing device 1 is not limited to being equipped on the 22 side.
It is possible to equip it on the 0 side. Next, the specific structure of the embodiment of the horizontal needle selection and pushing device 10, which is the most important part of the present invention, will be explained in more detail based on FIGS. 2 to 6 and furthermore, FIGS. 7 to 11. Then, as mentioned above, the front plate 17 is elastically supported by the springs 16 at appropriate intervals with respect to the device frame 11, and the elastic support springs 16 are provided at four locations on the left and right sides of the device frame 1, two above and below. (See Figures 2 and 4).

The front plate 17 is guided by guide means 24 provided at four locations in the same way as the elastic springs 16, and is supported so that it can be moved toward the device frame 11 against the springs 16. (See Figures 2 and 5). The guide means 24 is configured such that a slide pin 27 is movably inserted into a front and rear through hole 26 formed in a guide member 25 attached to the end of the device frame 11, and the front end of the pin 27 is inserted into the front plate 17 with a bolt or the like. A stopper member 28 for the back of the device frame 11 is attached to the rear end of the pin 27 with a bolt or the like. As a result, the front plate 17 is always biased by the spring 16 to maintain a predetermined distance in front of the device frame 11, and the slide pin along the through type 26 of the guide means 24 resists the biasing force of the spring 16. It is possible to approach the device frame 11 by guidance by the motion of 27. Further, brackets 29 are urged on both the left and right sides of the device frame 11, and the brackets 29
By appropriately attaching an attachment member 31 having a shaft 30 corresponding to the left and right protruding core axes of the pattern paper cylinder, the entire device 10 can be easily attached to a part of the jacquard machine that replaces the pattern paper cylinder. (Second
(see Figure, Figure 3).

The head 18 of each push rod 15 is made of something like a synthetic resin material and is made thicker than the horizontal needle 7, and the difference in length between the head 18 and the bumper member 20 that protrudes forward from the front plate 17;
Further, the distance between the device frame 11 and the front plate 17 is appropriately set depending on the amount of operation to be pushed by the horizontal needle 7, and is, for example, approximately 9-side.

Each solenoid type electromagnetic actuator 13 has an electric signal output device 2 connected to an iron core (armature) 31 as a rod-shaped magnetic body.
A coil 32 as an excitation winding for selective excitation by an electric signal from 2 is wound multiple times in a tapered shape, and the tip side of the iron core 31 is connected to the magnetic frame 14 described later.
The rear end side of the iron core 31 is movably attached to the device frame 11 by a vertical pivot 3 between the corresponding N and S poles made of plate bodies. The tip is the rear end axis 3
It is said that it is possible to rotate left and right around 3 (Fig. 2, 6
(see figure).

In such movable pivoting of each actuator 13, for example, a flange-like ring spacer 40 and a bush 41 are attached to a vertical pivot 33 mounted between the top and bottom of the device frame 11.
This is done by inserting iron in an alternating order, and rotatably loosely inserting the boss portion 42 provided at the rear end of the iron core 31 on the outer periphery of the bush 41 between the adjacent spacers 40 for each iron insertion. (See Figures 6 and 11). In this way, it is possible to easily arrange the iron cores 31 at accurate pitches according to the pitches of the vertical needles 7. In this case, not only the device frame 11 but also the pivot 33, spacer 40, support 41, etc. are made of non-magnetic material. As shown in FIG. 7, the magnetic frame 14 has an arrangement interval of each iron core 31 and each push rod 15 in the left-right direction that is approximately 2 to 3 times the thickness of the iron core 31 and each push rod 5. The plate bodies 34 made of longitudinally long strip-shaped magnetic material are arranged at equal intervals, and each of the plate bodies 3 arranged in such a manner
It is constructed by sandwiching permanent magnets 36 at both the upper and lower ends between the four.

In this case, each of the sandwiched permanent magnets 35 has an anode (
There are a north pole (N pole) and a cathode (S pole), and the anode side and the cathode side are alternately reversed one by one in the left-right arrangement order. As a result, each plate body 34 arranged at intervals on the left and right has one
Each plate is made to have magnetism as an anode and a cathode alternately, and a shelf-like spot 36 where the tip of the iron core 31 is exposed is formed between the plates 34, which alternately have magnetism as an anode, as partition walls. , a magnetic frame 14 is constructed. In addition, in the configuration of this magnetic frame 14, as shown in FIGS. 8 to 10, a push rod insertion hole 37 is bored between each plate 34 at a position offset toward one plate on the front side. However, on the rear side, a slit 38 is formed with a length extending between both plates, through which the iron core 31 can be inserted in a left-right movable manner, and the slit 38 is made up of a non-magnetic pair that forms individual spots 36. It is preferable to provide an intervening part 39. In this way, the tip of the iron core 31 is inserted into each spot 36 through the slit 38, and the push rod 15 is inserted through the insertion hole 37 close to and opposite to the tip. The rear end shall be inserted. Next, to describe the operation of the above-mentioned component device, each solenoid type electromagnetic actuator 13 is individually selectively energized in the forward and reverse direction of current based on the electric command signal from the signal device 22 to the coil 32. As a result, the tip of the iron core 31 can be selectively excited as either an anode or a cathode.

By such excitation of the incision in the intestines, the tip of the iron core 31 is selectively directed to either the left or right of the anode or cathode of the plate 34 forming the partition wall in the spot 36 of the magnetic frame 14. A switching and abutting action is brought about. As a result, the tip of the iron core 31 is selectively moved between two rotational positions in the spot 36 about the pivot 33 at the rear end. In the two-position operation, when the tip of the iron core 31 is in one position, the tip is not axially aligned with the rear end of the push rod 15 and cannot be engaged with the rear end of the push rod 15. Conversely, when the tip of the iron core 31 is in the other position, the tip aligns with the rear end of the push rod 15 and is in a state where it can be engaged. Such two-position operation of the electromagnetic actuator 13 can be easily and smoothly achieved with a small power load on the coil 32 and by instantaneous pulses. Therefore, the switching operation between the two positions of each electromagnetic actuator 13 based on a command from the signal device 22 is performed every time the device frame 11 responds, thereby selectively pushing and controlling the function needle 7. This is achieved through the following actions. In other words, now,
When the device frame 11 is in the retracted position in its reciprocating motion, the bumper member 20 is separated from the auxiliary opening plate 9, and the head 18 of each push rod 15 projects from the auxiliary opening plate 9. It is located away from the tip of 7,
This situation is shown in FIG.

Next, as the device frame 11 moves forward, the bumper member 20 first comes into contact with the auxiliary opening plate 9, as shown in FIG. It approaches the tip of each corresponding horizontal needle 7 in a state where it almost supports,
In this state or before, selective operation between the two positions of each electromagnetic actuator 13 described above is performed based on a signal from the signal device 22. Subsequently, when the device frame 11 advances further and reaches the maximum forward position, the front plate 17 resists the spring 16 due to the support of the bumper member 20 against the auxiliary opening plate 9, as shown in FIG. At this time, each push rod 15 comes into contact with the tip of the iron core 13 depending on the selective operating position between the two positions of the corresponding electromagnetic actuator 13. Things that are not present are made to appear. As a result, each push rod 15 has a rear end that is not aligned with the tip of the iron core 31 and does not come into contact with the magnetic frame 14.
Since the tip of the iron core 31 and the tip of the iron core 31 are inserted backwards in the spot 36, the head 18 does not protrude forward from the front plate 17 at all, and does not push the corresponding cross needle 7 at all. The one whose rear end aligns with the tip of the iron core 31 is pushed by the tip and moves forward against the spring 19 as the device frame 11 moves forward, so that its head 18 projects forward from the front plate 17. , the corresponding horizontal needle 7 is pushed. In this manner, in this device, selective pushing control of the cross needle is achieved by the mechanical reciprocation of the device frame 11 and the excitation operation of each electromagnetic actuator 13 between two positions at that time. In addition, in its operation, even when the device frame 11 is in the retracted position during its reciprocating movement, that is, it is always in the 12th position from the beginning.
It is also possible for the bumper portion 20 to be in contact with the auxiliary opening plate 9 as shown in the figure. In the device of the above embodiment, as shown in FIG. 14, the tip of the iron core 31 of the electromagnetic actuator 13 is covered with a covering material 45 such as a cap made of a non-magnetic material, so that the iron core 31 is protected. The magnetic frame 14 can be brought into contact with the plate 34 through the covering material 45 based on the excitation of the tip.

In this way, the push rod 1 at the tip of the iron core 31
This provides a high effect of preventing damage to the rear end of the iron core 31, and the switching operation between the two positions of the tip of the iron core 31 due to excitation can be performed extremely smoothly and easily with less electric power. Furthermore, the magnetic frame 1 shown in FIGS. 7 to 10 described above
In the configuration No. 4, each magnetic plate 34 is alternately used as an anode and a cathode in the left and right arrangement, so for every pitch in the left and right direction,
The relationship between the forward and reverse directions of the current to the coil 32 of the electromagnetic actuator 13 and the engaged and disengaged positions with respect to the push rod 15 must be alternately reversed by a signal command.

In order to eliminate this problem, as shown in FIG. 15, each plate 34 of the magnetic frame 14 has a structure in which magnetic plates 34b and 34c are arranged in layers on the front and back sides, with a non-magnetic plate 34a in the middle. The direction of the anode and cathode of each sandwiched permanent magnet 35 is the same, and each plate 34 is connected to the magnetic plate 34 on the front and back sides.
b, 34c as an anode and a cathode, or
If possible, the permanent magnet 35 may not be used, and the front and back magnetic plates 34b, 34c themselves may be used as permanent magnet bodies for the anode and cathode. In addition, in the present invention, as a modification of the previous embodiment, instead of providing auxiliary separate parts such as the front plate 9 and the push rod 15 and controlling the push and move of the horizontal needle 7 through them, , as shown in FIG.
It is also possible to make it relate to the iron core 31 of.

[Brief explanation of the drawing]

Fig. 1 is a schematic mechanical diagram showing one embodiment of the device of the present invention;
The figure is a partially cutaway plan view showing the details of the horizontal needle selection and pushing device in the device, with the middle part omitted, FIG. 3 is a side view of the device in FIG. 2, and FIG. -1' line, Figure 5 is a cross-sectional view along line 0', Figure 6 is a cross-sectional view along line m-m', and Figure 7 is a cross-sectional view along line 2. 8 is a front view of the magnetic frame shown in FIG. 7, further enlarged and shown in detail, as seen from the front side; FIG. 9 is a front view of the magnetic frame seen from the back side; 10th
The figure is a cross-sectional view of the magnetic frame taken along the line W-N' in Figure 8.
Figure 1 is a partially enlarged side sectional view showing the pivoting structure of the electromagnetic actuator in the device shown in Figure 2, and Figures 12 and 13 are respectively
14 is an explanatory diagram of a modified example of the structure of the tip of the electromagnetic actuator, FIG. 15 is an explanatory diagram of a modified example of the magnetic frame, and FIG. 16 is an explanatory diagram of a modified example of the device of the present invention. It is a partial schematic mechanical diagram showing an implementation modification example. 1...Jacquard machine, 2...Knife box, 3...Knife,
4...Vertical needle, 6...Bottom plate, 7...
Horizontal needle, 8... Rear opening plate, 9... Auxiliary opening plate,
10...Horizontal needle selection pushing device, 11...
Device frame, 13... Solenoid type electromagnetic actuator, 14.
...Magnetic frame, 15...Push rod,
16...Spring, 17...Front plate, 18.
...Head, 19...Spring, 20...
Bumper member, 21...Terminal board, 22...
...Signal device, 23... Code, 24...
Guide means, 29...bracket, 30...shaft,
31... Iron core, 32... Coil, 33
...Axis, 34...Plate body, 35...
・Permanent magnet, 36... Spot, 37...
...Insertion hole, 38...Slit, 45...
Covering material. Figure 3 Figure 1 Figure 2 Figure 8 Figure 7 Figure 4 Figure 5 Figure 6 Figure 9 Figure 10 Figure 16 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15

Claims (1)

[Claims] 1. A device 10 for selecting a horizontal needle to be pushed is provided at one end of the horizontal needle 7 of the jiacard machine 1, and an electric signal output device 22 for supplying an operation control signal to the selection device 10,
The selection device 10 has a device frame 11 equipped with a plurality of electromagnetic actuators 13 corresponding to each horizontal needle 7 of the Jacquard machine, and each actuator 13 has an N pole and an S pole for actuation. A stationary magnetic frame 14 providing a magnetic pole is installed, and each actuator 13 has a rear end side movable between the corresponding north and south magnetic poles of the magnetic frame 14. axis 3
3, an excitation winding 32 for selectively exciting the magnetic body 31 by an electric signal from the electric output device 22 is wound around the outer periphery of the rod-shaped magnetic body 31 pivotally mounted to the device frame 11. The magnetic frame 14 has a plurality of magnetic pole plates 34 made of a magnetic material arranged at intervals so as to be located between each row of the actuators 13, and a plurality of magnetic pole plates 34 are arranged at intervals between each of the plates 34. A permanent magnet 35 is interposed at the end of the plate body 34.
For the operation of one row of the actuators 13, common N-pole and S-pole magnetism are imparted to adjacent and opposing ones in the actuator 13, and each actuator 13 has its own excitation winding 32. Depending on the polarity of excitation by the electric signal from the electric signal output device 22 to the magnetic body 31, a position where the tip side of the magnetic body 31 is attracted to the corresponding north pole of the magnetic frame 14 and a position where the tip side is attracted to the south pole of the magnetic frame 14 are determined. It takes two rotational operation positions,
In one of these two operating positions and the other, a position in which the corresponding horizontal needle 7 can be engaged directly or via a separate member 15 and a position in which it cannot be engaged are selectively occupied. A horizontal needle push control device for a jiacard machine, characterized by: