JP2007277767A - Electronic jacquard and cassette for electronic jacquard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic jacquard for carrying out a stable selective action for a long period of time and a cassette for an electronic jacquard. <P>SOLUTION: The electronic jacquard comprises a cassette equipped with a selection head for selecting an attitude by a swing between a contact attitude to come into contact with a selection pin by the curve of an operating part composed of an piezoelectric element and a noncontact attitude and a retaining pin forming the swing fulcrum of the selection head, a jacquard main body for fixing and supporting the cassette and a reciprocation mechanism for reciprocating the jacquard main body in the length direction of the selection pin. The selection head end of the selection pin is formed in a conical shape and the selection pin end of the selection head is equipped with a recessed part for receiving the conical selection head end. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic jacquard apparatus and an electronic jacquard cassette that is used by being mounted on the apparatus.

The jacquard device is a device provided for controlling the positions of a plurality of yarns hung on the machine base, and is a device for positioning a select pin for handling each yarn or a plurality of yarns as a group. Here, the select pin provided in the machine base is urged in the longitudinal direction in the direction close to or away from the jacquard device.
On the other hand, a reciprocating mechanism for reciprocating the jacquard body in the longitudinal direction of the select pin is provided with respect to the jacquard body, and the jacquard body and the select pin are in a non-contact state where the select head does not contact the select pin. The relative positional relationship in the longitudinal direction changes. When the jacquard body and the select pin are both in their original positions, the select head can abut against the select pin. In the abutting state, the select pin moves integrally against the urging force according to the movement of the jacquard body. Is positioned.

In other words, when the select pin is not in contact with the select head, the select pin is held in its original position. In the contact state with the select head in contact, the jacquard body is moved. As a result, only the select pin in the contact state is moved together therewith.
As a result, the position of the select pin can be controlled according to the attitude of the select head.

  In this type of jacquard apparatus, a so-called electronic jacquard apparatus is being adopted. This electronic jacquard changes the attitude of the select head based on the curvature of the piezoelectric element body, and is versatile by selecting a select pin using electronic information for thread positioning. You can get jacquard.

  In the electronic jacquard, a so-called cassette format is adopted, and a certain number (for example, seven) of select pins are selected and operated. Therefore, the cassettes having select heads corresponding to the number are used as a unit. It is configured with many. Therefore, a cassette is required in which the number of select pins to be positioned is divided by the number of select heads provided in the cassette.

  This cassette is provided with a certain number of select heads that are oscillated between a contact position that contacts the select pin and a non-contact position that does not contact due to the bending of the actuator made of a piezoelectric element body, and the position is selected. At the same time, a holding pin is provided that forms the swing fulcrum of the select head. The leading end side of the select head is a contact portion of the select pin, and the base end side of the select head is an operating body disposing portion where the operating body is disposed. An electronic control unit for bending operation control is provided.

  Referring to FIGS. 4 and 9, from the base end side (lower side in FIG. 4) of the cassette, the electronic control unit 7d provided with the electronic component substrate 10 for controlling the bending operation of the operating body, and the piezoelectric control unit on the upper side. A working body disposing portion 7c provided with a certain number of actuating bodies 9 made of element bodies so as to be able to bend freely, and a head disposing portion 7b provided with a certain number of select heads 8 on the upper side thereof are provided. The vicinity of the front end of the cassette C is a select pin intrusion portion 7a into which the select pin N enters. The select pin intrusion portion 7a is provided with a partition wall 11 that defines an intrusion route of each select pin N.

JP 2001-348752 A

FIG. 13 shows details of the vicinity of the head disposition portion 7b that the inventors consider preferable in the jacquard apparatus having the above-described configuration.
As shown in FIG. 13, in the conventional select head 8, the tip of the select head 8 is inclined (inclined to the right in FIG. 13), and the tip of the select pin N is particularly processed. It was basically hemispherical.
Further, the select pin N is configured to descend along the select pin guide surface 19 formed on the cassette body side.

However, it has been found that the use of such a structure causes the following problems. That is, as shown in FIG. 13 (d), since the lower end of the select pin N makes point contact with the inclined surface, the select pin N is shown in (e) with the select pin N in contact with the select head 8. May bounce. Such a bounce causes a malfunction.
Further, regarding the relationship between the select head 8 and the select pin guide surface 19 described above, since the contact between the two becomes a line contact, the bounce of the select head 8 is caused as shown by the arrow pointing upward to the right in (f). It occurs and it is difficult to take a stable contact posture, which causes malfunction.
Further, when the urging force that urges the select head 8 toward the non-contacting posture is applied to the select head 8 for some reason, an unexpected swinging force is applied to the actuator 9 that is a piezoelectric element as shown in FIG. There was a problem that it took (indicated by a left arrow).

  The object of the present invention has been made in view of the above-mentioned problems. The object of the present invention is to enable stable selection operation over a long period of time in an electronic jacquard device, and the tip of a select pin is connected to the select head. An electronic jacquard device and an electronic jacquard cassette that can ensure a stable operation of the select head even in a state where it hits the tip are provided.

According to the present invention for achieving the above object,
A select head that is oscillated between a contact position that is in contact with the select pin and a non-contact position that is not in contact with the select pin by the bending of a working body made of a piezoelectric element body, and a swing fulcrum of the select head A holding pin is provided, and a jacquard body for fixing and supporting the cassette is provided.
The first characteristic configuration of the electronic jacquard device provided with a reciprocating mechanism for reciprocating the jacquard body in the longitudinal direction of the select pin is as follows:
The select head side end of the select pin is formed in a conical shape,
A concave portion for receiving the conical select head side end is provided at the select pin side end of the select head.

In the electronic jacquard device having this configuration, when the select pin is in contact with the select head, the select head side end of the select pin formed in a conical shape enters the concave portion of the select head.
Therefore, the end of the select pin on the select head side is positioned from a recess positioned so as to sandwich the cone. On the other hand, when viewed from the select head side, the positional relationship between the two is determined with the tip of the select pin entering the recess.

  As a result, compared to the case where the tip of the select head is configured as a simple inclined surface, the holding between the two can be made stable, and the positional relationship between the two becomes unstable, so that the select pin is It is possible to suppress bouncing, swinging of the select head side between the contact posture and the non-contact posture, and an unexpected force applied to the operating body.

A select head that adopts this configuration and that is selected by swinging between a contact posture that abuts on the select pin and a non-contact posture that does not contact by the bending of the operating body made of a piezoelectric element body, A cassette with a holding pin that forms the pivot point of the select head.
The characteristic configuration of the electronic jacquard cassette used by being fixedly mounted on the holding plate of the electronic jacquard device provided with a reciprocating mechanism for reciprocating the jacquard body in the longitudinal direction of the select pin is as follows:
If the concave portion for receiving the conical select head side end is provided at the select pin side end of the select head with respect to the select head side end of the select pin formed in a conical shape. Good.

Now, in the electronic jacquard device as described above,
It is preferable that a pair of straight sides extending in the longitudinal direction of the holding pin is formed at the select pin side end of the select head to constitute the concave portion.
When the concave portion is configured by the pair of right side portions (right side surface portions) extending in the longitudinal direction on the holding pin as described above, the right side portions are paired to form the conical portion of the select pin. Can touch.
As a result, the position holding between the two can be stabilized, and the above object can be achieved.
The same characteristic configuration can be adopted even in the electronic jacquard cassette.

Furthermore, in the electronic jacquard device described so far,
At the tip of the select head, a head side stopper portion that comes into contact with the cassette body in the non-contacting posture is provided on a surface that is on the front side of the swinging from the non-contacting posture to the contact posture, and
In the contact posture, it is preferable to provide a concave cassette side stopper portion that contacts the head side stopper portion and stops further swinging of the select head.
By maintaining the contact between the head-side stopper portion and the cassette-side stopper portion as a surface, the posture retention of the select head can be stabilized.
The same characteristic configuration can be adopted even in the electronic jacquard cassette.

Further, with respect to the select head, the length from the swing fulcrum to the contact position with the select pin is the length from the swing fulcrum to the operating position where the operating body transmits operating force to the select head. It is also a preferable configuration to be equal or shorter.
With this configuration, the displacement on the operating body side can be reliably transmitted to the select pin side of the select head.
The same characteristic configuration can be adopted even in the electronic jacquard cassette.

Hereinafter, an example in which the electronic jacquard apparatus J including a large number of electronic jacquard cassettes C according to the present application is used for positioning control of the top bar TB of the river race machine R will be described.
In the description, first, the configuration of the river race machine R and the outline of the operation thereof will be described based on FIGS.

River Race Machine FIG. 1 shows a schematic configuration of a river race machine R, and FIG. 1 is a view of the river race machine R as viewed obliquely from the front.
The river lace machine R guides the beam warp yarn w wound around a plurality of beams Bm from the lower position of the machine base to the knitting portion via the sley S, and laces RL by the entanglement between the beam warp yarn w and the bobbin yarn b. The formed race RL is lifted up alternately by the back point bar BPB and a front point bar (not shown) and held, and at the same time, it is pulled up by the porcupine roller PPR wound with the upper cloth.

  The generated river race RL is wound around a winding roll W in contact with the porcupine roller PPR.

  As shown in FIG. 1, in this river race machine R, a swing mechanism (illustrated) that swings and moves the bobbin B stored in a state where the bobbin thread b is wound in the front-rear direction of the river race machine R. (Omitted) is provided. The position of the bobbin B is unchanged in the left-right direction of the river race machine R.

  Between the sley S and the swing position of the bobbin B, the beam warp yarn w is moved in the left-right direction of the river race machine R, and the bottom bar BB and the top bar TB from the machine base lower side (sley side) Is provided. Here, both the bars BB and TB are configured to position the position of the beam warp yarn w in the horizontal direction of the machine base, and the relative positional relationship between the beam warp yarn w and the bobbin yarn b is expressed by the bobbin B. The river race RL can be formed by changing it in relation to the timing of movement in the front-rear direction.

With reference to FIG. 2, the formation process of the river race RL will be described below.
In the drawing, lines shown in parallel in the vertical direction (drawn by a one-dot chain line extending in the vertical direction) are lines indicating the bobbin yarn b, and the bottom bar BB and the top bar are provided for these bobbin yarns b. The beam warp yarn w is positioned by TB.
In the river race machine R, the beam warp yarn w is entangled with the bobbin yarn b while moving in the lateral direction and moving in the front-rear direction, thereby forming the race RL. That is, the position of the beam warp yarn w on the structure is specified by alternately including a laterally moving portion ww extending in the lateral direction and an arc-shaped knitting advancing portion wh that means movement in the front-rear direction, that is, knitting progress. Is done.

In the example shown in FIG. 2, the beam warp yarn w extends from the first lateral movement unit ww1 belonging to the previously knitted portion in the progress of knitting to the fourth lateral movement unit ww4 that is subsequently knitted. The back surface position, the front surface position, the back surface position, and the front surface position are alternately taken with respect to the yarn b.
Here, in the drawing, the position of the bobbin yarn b is fixed and the beam warp yarn w is shown and described as moving to the front side and the back side. However, in the actual river race machine R, As shown in FIG. 1, the bobbin yarn b repeats the movement of the bobbin yarn b in the front-rear direction with respect to the beam warp yarn w at a fixed position in the front-rear direction of the machine base. The relative positional relationship between the yarn w and the bobbin yarn b is determined.

The above is the description of the front / back relationship between the beam warp yarn w and the bobbin yarn b. Hereinafter, the formation of the lateral movement portion ww and the knitting progression portion wh described above will be described.
In FIG. 2, (a), (b), (c), (d), and (e) indicate the position of the beam warp yarn w in the top bar TB and the bottom bar BB in each state, and the entanglement state of the yarn. .

As described above, the beam warp yarn w is positioned by the top bar TB and the bottom bar BB, but is inserted into the guide holes h provided in the top bar TB and the bottom bar BB and used. As shown in the figure, the guide hole ht provided in the top bar TB is relatively large, and further, since the hole shape is square, the beam warp yarn w is positioned on the right side of the bobbin yarn b. And a relative position on the left side can be taken. On the other hand, the guide hole hb provided in the bottom bar BB is relatively small and can determine the position of the beam warp yarn w.
Therefore, the position of the beam warp yarn w shown in (a) with respect to the bobbin yarn b is the most relative to the left side of the central guide hole ht provided in the top bar TB. The position with respect to the right bobbin thread b1 is determined.

  Hereinafter, as the knitting progresses, the top bar TB moves to the left by two pitches, and the bottom bar BB moves to the left by the same amount. At this position, the beam warp yarn w is applied to the third bobbin yarn b3 from the right side. The position is determined. That is, the lateral movement part ww1 is formed. After this step, the bobbin yarn b is moved in the longitudinal direction of the machine base, the beam warp yarn w is positioned on the front side with respect to the bobbin yarn b, and the bobbin yarn b is entangled with the beam warp yarn w. It becomes a state. This state is a state indicated by (b), and thus the knitting progression portion wh described above is formed.

  Subsequent knitting is the lateral movement related to the top bar TB and the bottom bar BB (the formation state of the lateral movement part ww2 shown by (c)), and the back-and-forth movement of the bobbin yarn b at each stage (from (c) to (d) By repeating the state change to (1) and the state change from (d) to (e)), a river race structure can be formed.

FIG. 3 schematically shows the relative positional relationship between the top bar TB and the bottom bar BB in the river race machine R.
Each of the top bar TB and the bottom bar BB is configured to move in the left-right direction of the machine base. For example, the top bar TB can take 33 positions from 0 to 32, The bottom bar BB can take two positions, 0 and 1. The positioning of these bars TB, BB in the left-right direction is executed by the jacquard devices Jt, Jb provided individually for the bars TB, BB.

  Positioning of the top bar TB in the left-right direction is executed by a top jacquard device Jt which is a jacquard device J according to the present application. This top jacquard device Jt is operated by a jacquard device Jt1 for a dropper for selecting two positions. The top bar TB moves in the horizontal direction of FIG. 3 with respect to the dropper D positioned in the vertical direction of the table, and the left direction of the top bar TB is equivalent to the positioning piece s (see FIG. 4) provided at the tip of the dropper. It has the structure which performs the positioning by restricting a movement.

On the other hand, the bottom jacquard device Jb is a jacquard device Jb for selecting two positions, and positions the bottom bar BB at two positions in the left-right direction of the machine base, which is the left-right direction in FIG.
As shown in FIG. 3, the bottom bar BB is urged leftward by an urging mechanism (a pulling spring sp) provided on the side opposite to the position where the jacquard device Jb is disposed (the left end portion in FIG. 3). The front end (right end) is connected to the select pin N via the connection adjusting adjustment rod A. The select pins N are provided in a one-to-one correspondence with the bottom bar BB.

Top Jacquard Device The positioning configuration of the top bar TB using the top jacquard device Jt according to the present application is shown in FIGS.
As shown in the figure, the top bar TB is urged toward the main body of the river racer R by a spring sp, and the top bar TB is urged and moved in the left direction in the figure when no regulation is applied. On the other hand, a positioning lever L that is particularly engaged with the top bar TB is provided, and the positioning lever L is provided with a pair of buffers Ba. In the illustrated example, the buffer Ba located on the left side in the figure is a back motion buffer Bab, and the buffer Ba located on the right side is a front motion buffer Baf.
This front motion and back motion are paired, and while the top bar is positioned by the front motion side mechanism, the back motion side prepares the next positioning so that the top bar returns to the origin (attached) It is possible to carry out efficient positioning continuously without moving to the main body side of the river race machine.
Now, with respect to the buffer Ba, a pair of drive blades DB are provided that are reciprocated between the illustrated origin position and positioning position from the main body side of the river racer R. Also regarding this drive blade DB, the drive blade DB located on the left side in the figure is the drive blade DBb for back motion, and the drive blade DB located on the right side is the drive blade DBf for front motion. The drive blade DB is configured such that only the corresponding drive blade DB reciprocates in the left-right direction in the figure when the top bar TB is in the front motion or the back motion.

The above is a description of the top bar TB and the lever L connected to the top bar TB. As shown in FIG. 4 and the like, on the lower side of the lever L, a positioning piece corresponding to the front motion and the back motion respectively. It is configured to control the vertical position of s.
This vertical position control is performed for the dropper D provided corresponding to each positioning piece s, the select pin N provided below the dropper D, and the electronic jacquard that is the subject of the present application for controlling them. Performed by cassette C.

The dropper D includes the positioning piece s described above at the upper end portion thereof, and is used for positioning the lever L. A large-diameter portion Da is provided at the intermediate position, and the large-diameter portion Da is configured to restrict the fall at the lower end position. In FIG. 4, P1 indicates this regulating plate.
When the select pin N is lifted, the lower end of the dropper D comes into contact with the select pin N and is lifted.

  The select pin N is a rod-shaped member, and has a dropper abutting portion Na that abuts on the lower end of the dropper D and moves up the lower end of the select pin N. The dropper abutting portion Na is a large-diameter portion as shown in the figure, and is configured such that its lowering is regulated by the regulating plate P2.

  Each of the electronic jacquard cassettes C is configured to guide the select pin N and then the dropper D to its raised position while contacting the select pin N from below by the operation of the select head 8.

  Hereinafter, based on FIG. 4, FIG. 5, FIG. 6, FIG. 7, and FIG. 8, regarding the operation of the top bar TB, the lever L, the dropper D, the select pin N and the select hook 8 provided in the electronic jacquard cassette C, First, a description will be given.

  FIG. 4 shows a state in which both cassettes C are in the lowered position and the lever L connected to the top bar TB is located at the right end position (the origin position for the lever L). This origin position is set by the action of a return mechanism (not shown) provided in the river race machine R. At the origin position, the positioning piece s can ascend and enter between the drive plate DB and the buffer Ba.

  FIG. 5 shows a positioning state of the top bar TB at the time of the front motion, and a situation in which a plurality of positioning pieces s are raised between the drive blade DBf and the buffer Baf corresponding to the front motion and positioning is performed. Is shown. At this time, the electronic jacquard cassette Cf for the front motion is raised.

  FIG. 6 shows a state in which the electronic jacquard cassette Cf for front motion is lowered with the passage of time from the state shown in FIG. At this time, since the plurality of positioning pieces s are sandwiched and held between the drive blade DBf corresponding to the front motion and the buffer Baf, the dropper D maintains its position. At this time, the relative positional relationship between the lever L and the cassettes Cf and Cb is a relationship in which the cassette side is shifted to the right side in the drawing with respect to the state shown in FIG. As the jacquard device, the cassette side position is actually fixed, so that the lever L (and pulling the top bar TB) is positioned on the left side in FIG. 8 and 9 also show the relative positional relationship by changing the cassette side position with respect to the lever L.

  FIG. 7 shows a positioning state of the top bar TB in the initial stage of the back motion. As the time elapses from the state shown in FIG. The electronic jacquard cassette Cb is raised. At this time, the plurality of positioning pieces s are raised between the drive blade DBb corresponding to the back motion and the buffer Bab according to the attitude of the select head 8 provided in the cassette Cb.

  FIG. 8 shows the positioning state of the top bar TB during the back motion following FIG. 7. As time passes, the electronic jacquard cassette Cf for front motion is held at the lowered position, and the back motion electronic The jacquard cassette Cb is in a raised state. Then, a plurality of positioning pieces s are sandwiched between the drive blade DBb corresponding to the back motion and the buffer Bab, and the positioning of the top bar TB in the back motion is completed.

FIG. 9 shows the detailed structure of the electronic jacquard cassette C described so far. A select pin hole 5 into which a plurality of select pins N are guided and inserted is provided in the upper side portion of the cassette C.
Here, as shown in FIG. 11, the select pin N is provided at its lower end with a conical portion N3 with which the select head 8 abuts. Accordingly, as shown in FIGS. 12D and 12G, the contact recess 8a of the select head 8 can be reliably contacted in the contact state in which the select head 8 contacts the select pin N, and the select pin N jumps up. Etc. can be prevented. Here, the contact state between the two is a line contact as shown by a one-dot chain line in FIG.

  As shown in FIG. 3, the jacquard body 1 is provided with a reciprocating mechanism 6 for reciprocating the jacquard body 1 and then the electronic jacquard cassette C up and down with respect to the jacquard body 1. When the dropper D is pulled, the positioning piece s is configured to be able to move upward in the upward direction.

Electronic jacquard cassette C
As shown in FIG. 9, the electronic jacquard cassette C has a substantially rectangular parallelepiped cassette body 7, a select head 8 described so far, an operating body 9 made of a piezoelectric element for the select head 8, and The control electronic control board 10 is accommodated. As shown in FIG. 9, from the upper end side to the lower end side of the cassette body 7, there are an intrusion portion 7a for the select pin N, a select head disposition portion 7b, an actuating member disposition portion 7c, and an electronic control portion 7d. .

As shown in FIG. 12 later, the select pin intruding portion 7a is a portion into which the tip of the select pin N enters, and the select pin guiding partition 11 is connected to the select pin N. It is provided in parallel with the longitudinal direction of the select pin, which is the intrusion / retraction direction.

Select Head Arrangement Unit The select head arrangement unit 7b allows the select head 8 to swing, and the posture in which the select head 8 comes into contact with the select pin N according to the swing and invasion / retraction of the select pin N; It is the site | part comprised so that the attitude | position which does not contact | abut is realizable.
As can be seen from FIG. 10, a holding pin 12 that forms a swing fulcrum of the select head 8 is disposed for each select head 8 at a substantially central portion of this portion.

  The select head 8 includes a head portion 8a extending above the holding pin 12 and an operating body intrusion portion 8b extending downward. The head portion 8a is equal to the operating body intrusion portion 8b. Or it is configured to be shorter. That is, when viewed from the swing fulcrum formed by the holding pin 12, the operating position of the operating body 9 (the length of the arm is indicated by p1) and the operating position of the contact recess 14 provided at the tip of the head portion (arm In effect, the working position of the contact recess 14 is closer to the swing fulcrum (p1 ≧ p2). As a result, a small displacement of the operating body 9 can be transmitted to the head in a stable state.

  As shown in FIG. 10, the above-mentioned head portion 8a is provided with a contact concave portion 14 extending downward in the figure. As can be seen from FIG. 11, the contact concave portion 14 is formed in the head portion 8a. 10 is configured as a combination of two straight side portions (straight side planar portions) 15 and 16 extending in the thickness direction (the longitudinal direction of the holding pin, the front and back direction in FIG. 10). As a result, as shown in FIG. 12 (d), the conical portion N 3 provided at the tip of the select pin N is configured to fit well into the contact recess 14. As a result, as described above, the contact state between the two is a line contact as shown by a one-dot chain line in FIG.

  With this configuration, the right side portion 15 located on the left side in FIG. 12 at the tip of the head portion 8a is in a contact state in which the select pin N is in contact with the select head 8, and the select head 8 is in a non-contact posture side. It becomes an inclination guide part to guide from the contact posture side. In the example shown in FIG. 12, the tip of the select pin N is formed on the inclined surface by forming an inclined surface on the left side in the drawing from the base end side (upper and lower sides in the drawing) toward the distal end side (upper side in the drawing). When contact is made, the select head 8 swings to the left, which is the contact posture side, and the contact posture can be stabilized.

  Also, the tip of the select head 8 is positioned on the left side in FIG. 12, that is, the select head 8 is in contact with the surface on the front side of the swing when swinging from the non-contact position to the contact position. A head-side stopper portion 17 that contacts the cassette body 7 is provided.

  On the other hand, the cassette body 7 is provided with a cassette-side stopper portion 18 that comes into contact with the left end surface of the head portion 8a and stops further swinging of the select head 8 in a state in which the select head 8 takes a contact posture. Yes. Specifically, as shown in FIG. 12, the cassette side stopper portion 18 is a concave portion that is concave from the select pin guide surface 19 of the cassette body 7 in the left-right direction (before swinging). 8a and the cassette side stopper part 18 are comprised so that it may contact | abut on a surface.

  The operating body intrusion portion 8b is an extending portion that extends to the rear end side of the select head 8, and an intrusion hole 20 through which the operating body 9 enters is provided at the center in the width direction. The entry hole 20 is a margin hole that allows the operating body 9 to swing.

Actuator Arrangement Units Actuator arrangement units 7c are provided with as many actuating bodies 9 as piezoelectric element bodies as the number of select heads 8. These operating bodies 9 are fixed at their rear end positions to serve as swinging fulcrums, and are arranged so that their front ends enter the entry holes 20 of the select head 8. The operating body 9 receives a control signal for each operating body from the electronic control board 10 disposed in the electronic control unit 7d, and bends in the left-right direction in FIG. This piezoelectric element body is specifically a piezoelectric ceramic vibrator. As a result, the swing of the select head 8 is controlled.

Electronic control unit The electronic control unit 7d is provided with an electronic control board 10 for controlling the operation of the operating body 9, and according to the control information sent separately to the electronic jacquard cassette C, the swinging of the operating body 9 is performed. Control (select switch control).

  The materials of the respective members constituting the electronic jacquard cassette C will be described. The cassette body 7, the holding pins 12, and the select head 8 are made of resin, and the select pin N is made of metal.

  The above is the description of the configuration of the electronic jacquard device Jt and the electronic jacquard device cassette C according to the present application. Hereinafter, the operation will be described with reference to FIG.

  This figure is a drawing for explaining a series of continuous movements, and shows a state in which the select head 8 is swung by rocking of the operating body 9 positioned on the upper and lower sides of the figure. As the cassette C moves up and down, the select pin N moves up and down relatively with respect to the cassette C. The descending arrow of the select pin N indicates that the cassette C is moved up. .

  12, (a) corresponds to the state in which the select pin N and the cassette C are in their original positions, and the select pin N is held in the non-contacting position that is the original position, and the cassette C (pulling) The jacquard body 1) is located in its lowest position.

Hereinafter, description will be made in order from the left.
1 Original position In the state shown in (a), the select head 8 is in a non-contacting posture.
2 The select head enters the select pin while maintaining the non-abutting posture. The state shown in (b) is the same as that shown in (a), while the select head 8 keeps the same posture, and the select pin N is in the cassette. A state of further entering C is shown.
At this time, as shown in the drawing, when the cassette C is raised, the select pin N enters a deep position in the cassette C.

3 The contact posture of the select head (c) is the state in which the contact posture operation information of the select pin as the knitting data is given, and the operating body 9 swings to the right side to bring the select head 8 into the contact posture. Rock. In this state, when the cassette C is raised, the select pin N is relatively lowered, and the conical portion N3 of the select pin N comes into contact with the upper end of the select head 8. As a result, when the select pin N is pulled, the dropper D is raised, the positioning piece s is held at the raised position, and the position of the top bar TB can be satisfactorily positioned.
In such an operating state, as shown in (e), the select pin N bounces in contact with the select head 8, or as shown in (f) and (g), the select head 8 itself is in contact with it. Even when it bounces from the contact posture to the non-contact posture side, a favorable operation state can be realized by devising the tip shape of the select head 8 and the lower end shape of the select pin N.
[Another embodiment]
In the embodiment described so far, the example in which the electronic jacquard device according to the present application is used in the river race machine has been shown, but the use target is not limited to the river race machine, and the needle selection is performed in the jacquard device. The electronic jacquard apparatus according to the present application can be applied to an arbitrary apparatus that is executed by using the above. The object is not limited to a knitting machine, but can also be used in a loom for selecting a warp.

  An electronic jacquard device that can ensure stable select operation over a long period of time, and can ensure stable operation of the select head even when the tip of the select pin hits the tip of the select head. An apparatus and an electronic jacquard cassette could be provided.

Diagram showing the schematic structure of a river race machine Explanatory drawing which shows the formation state of a river race The figure which shows the operating state of the jacquard device to the top bar and the bottom bar of the river race machine Explanatory drawing of positioning operation of top bar Explanatory drawing of positioning operation of top bar Explanatory drawing of positioning operation of top bar Explanatory drawing of positioning operation of top bar Explanatory drawing of positioning operation of top bar Front view of electronic jacquard cassette Select head front view Explanatory drawing which shows the contact state with respect to the select head of a select pin Explanatory drawing showing the operating state of the select head in the cassette Explanatory drawing which shows the operation state of the select head at the time of adopting the conventional cassette structure

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Jacquard main body 5 Select pin hole 6 Reciprocating mechanism 7 Cassette main body 8 Select head 9 Actuator 10 Electronic control board 11 Partition 12 Holding pin 14 Head 15 Direct side part 16 Direct side part 17 Head side stopper part 19 Select pin guide surface

Claims (8)

A select head that is oscillated between a contact position that is in contact with the select pin and a non-contact position that is not in contact with the select pin by the bending of a working body made of a piezoelectric element body, and a swing fulcrum of the select head A holding pin is provided, and a jacquard body for fixing and supporting the cassette is provided.
An electronic jacquard device provided with a reciprocating mechanism for reciprocating the jacquard body in the longitudinal direction of the select pin,
The select head side end of the select pin is formed in a conical shape,
An electronic jacquard device provided with a concave portion for receiving the conical select head side end at the select pin side end of the select head.   2. The electronic jacquard device according to claim 1, wherein a pair of straight sides extending in the longitudinal direction of the holding pin is formed at an end of the select head on the side of the select pin to constitute the concave portion. At the tip of the select head, a head side stopper portion that comes into contact with the cassette body in the non-contacting posture is provided on a surface that is on the front side of the swinging from the non-contacting posture to the contact posture, and
3. The electronic jacquard device according to claim 1, further comprising a concave cassette-side stopper portion that contacts the head-side stopper portion and stops further swinging of the select head in the contact posture.   Whether the length of the select head from the swing fulcrum to the contact position with the select pin is equal to the length from the swing fulcrum to the operating position where the operating body transmits operating force to the select head The electronic jacquard device according to any one of claims 1 to 3, which is shorter. A select head that is oscillated between a contact position that is in contact with the select pin and a non-contact position that is not in contact with the select pin by the bending of a working body made of a piezoelectric element body, and a swing fulcrum of the select head A cassette with holding pins
An electronic jacquard cassette used by being fixedly attached to a holding plate of an electronic jacquard device provided with a reciprocating mechanism for reciprocating a jacquard body in the longitudinal direction of the select pin,
For an electronic jacquard having a conical shape and a concave portion for receiving the conical select head side end at the select pin side end of the select head, with respect to the select head side end of the select pin. cassette.   6. The electronic jacquard cassette according to claim 5, wherein a pair of straight sides extending in the longitudinal direction of the holding pin is formed at the select pin side end of the select head to form the concave portion. At the tip of the select head, a head side stopper portion that comes into contact with the cassette body in the non-contacting posture is provided on a surface that is on the front side of the swinging from the non-contacting posture to the contact posture, and
The electronic jacquard cassette according to claim 5 or 6, further comprising a concave cassette side stopper portion that contacts the head side stopper portion and stops further swinging of the select head in the contact posture.   Whether the length of the select head from the swing fulcrum to the contact position with the select pin is equal to the length from the swing fulcrum to the operating position where the operating body transmits operating force to the select head The cassette for electronic jacquards according to any one of claims 5 to 7, which is shorter.

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