JP3125102U - River race machine and catch bar for river race machine - Google Patents

Abstract

[PROBLEMS] To provide a river race machine and a catch bar used in the river race machine capable of preventing the carriage and the catch bar from being worn, and preventing the carriage from generating burrs. It was.
A carriage having a bobbin wound with a bobbin thread is provided, and a posture is selectively set between an engagement posture that engages with the carriage and a non-engagement posture that does not engage, and is engaged with the carriage. In the engaged state, a river race machine having a catch bar that moves the carriage forward and backward of the beam warp yarn, the catch bar is fixed to the catch bar body and the catch bar body by a fastener. And a resin cover that is sandwiched and fixed by the catch bar main body and the metal core, and the resin cover is provided with a pressing engagement portion that is pressed and engaged with the engagement portion of the carriage.
[Selection] Figure 9

Description

  The present invention relates to a river race machine and a catch bar used for the river race machine.

  The river race machine guides a plurality of beam warp yarns to a comb portion, and forms a river race by entanglement between the beam warp yarns and bobbin yarns. That is, in the river race machine, the beam warp yarn is moved and positioned in the left-right direction of the river race machine, the bobbin yarn is swung in the front-rear direction of the river race machine, and the river race is set by appropriately setting the timing of both operations. Is formed.

  Now, the bobbin around which the bobbin yarn is wound is housed in a carriage, and the bobbin yarn is fed out by swinging the carriage in the front-rear direction of the river race machine. The carriage swing is controlled by the operation of the catch bar. That is, the engagement portion provided on the carriage and the press engagement portion provided on the catch bar are engaged or disengaged, and the pair of catch bars swings in the front-rear direction of the river race machine. Thus, the swing of the carriage relative to the river racer is controlled.

  Here, heretofore, as the carriage, an iron made by stacking two carriage plates having a relatively thin structure is used, and as the catch bar, a square iron material fixed with a phosphor bronze plate with rivets is used. It was done. Note that these techniques are conventional techniques, and no prior documents can be shown.

  In the river race machine, when the river race is formed by using the catch bar in which the iron bronze plate and the phosphor bronze plate are fixed with rivets together with the iron carriage, the carriage and the catch bar are engaged with each other. By repeating the state or non-engagement state, the back and forth motion is performed several hundreds of times per minute, and each time the metals come into contact with each other, as shown in FIG. In addition, the shape shown by the two-dot chain line changes to the shape shown by the solid line), and a burr M may be generated on the engaging portion side of the carriage having a relatively thin structure compared to the catch bar.

  When such a burr M is generated, the burr M may cause the yarn to be broken or fluffy, resulting in a decrease in the production amount of the river lace and an increase in the number of defective laces.

  In addition, when such a burr M is generated, it is necessary to remove the burr M. However, the number of carriages where the burr M may be generated is as high as about 4500 per river race machine. The removal operation is very labor intensive and expensive. Therefore, it is necessary not to perform the removal operation of the burr M, and it is important not to form the burr M for this purpose.

  Further, when the carriage or the catch bar is worn, it is necessary to replace them. However, the replacement time must be as short as possible so as not to reduce the productivity. In particular, the catch bar has traditionally had a structure in which a phosphor bronze plate is fixed to a square iron with rivets, so amateurs cannot easily replace it, and it takes a very long time to replace it. Stopping the machine would reduce productivity.

  Also, when using phosphor bronze plates, they were imported and therefore very expensive.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a river race machine capable of preventing wear of the carriage and the catch bar and preventing occurrence of burrs on the carriage. And it is in the point which provides the catch bar used for a river race machine.

  In order to achieve the above object, a river lace machine according to the present invention guides a beam warp yarn wound around a plurality of beams to a comb portion, and in the comb portion, a river race is formed by entanglement between the beam warp yarn and a bobbin yarn. And the comb portion is provided with a carriage that houses the bobbin around which the bobbin yarn is wound, and has an engagement posture that engages with the carriage. A front catch bar which is selectively set between a non-engagement posture and a non-engagement posture, and moves the carriage in the front-rear direction of the warp yarn in the engagement state engaged with the carriage; A back catch that moves the carriage in the front-rear direction of the beam warp yarn at a timing different from the movement of the catch bar The characteristic features of each of the catch bars are a catch bar body fixed to a catch bar operation determining mechanism, and the catch bar body is fastened and fixed by a fastener. It is composed of a metal core and a resin cover that is clamped and fixed by the catch bar body and the metal core, and the resin cover is provided with a pressing engagement portion that is pressed and engaged with the engagement portion of the carriage. It is in.

According to the above-described characteristic configuration, even if the carriage and the catch bar move back and forth hundreds of times per minute by repeating the engaged state or the non-engaged state, even if they contact each time, the catch bar By forming the press engagement part in the resin, the impact applied to the metal carriage is reduced by absorbing the impact of the resin. Therefore, it is possible to prevent burrs from occurring at the engaging portion of the carriage. As a result, the number of operations for removing burrs is reduced, the service life of the carriage is extended, and the occurrence of yarn breakage or fluffing due to burrs is reduced, thereby improving productivity.
Furthermore, it is possible to avoid the metals from coming into contact with each other by configuring the pressing engagement portion of the catch bar with resin. Therefore, by reducing the wear of the metal carriage, the service life of the carriage can be extended and noise can be reduced.
Furthermore, even if the resin of the press engagement part, which is a part of the resin cover in the catch bar, is worn, the resin cover is clamped and fixed by fixing the metal core and the catch bar body with the fastening fixture. Therefore, it can be easily replaced by removing the fixture. Therefore, the replacement time can be shortened and productivity can be improved. Similarly, even if the resin of the press engagement portion of the catch bar is worn, by keeping the configuration in which the metal core and the resin cover are separated, without changing the positional relationship between the metal core and the catch bar body, The function of the catch engaging portion of the catch bar can be recovered simply by exchanging the resin cover, and the trouble of positioning the engaging portion of the carriage and the press engaging portion of the catch bar can be omitted.
Furthermore, by covering a part of the catch bar with the resin cover, the catch bar itself can be reduced in weight, and the burden on the swing mechanism that controls the operation of the catch bar can be reduced.

  Further, in the above configuration, the assembly in which the resin cover is mounted and integrated with the metal core is configured to form a strip-like plate having a short vertical width and a long horizontal width, and is sandwiched between the catch bar body and the metal core. The clamped portion is provided at both the upper end and the lower end of the assembly, and is configured to be short at the upper end and long at the lower end, and the pressing engagement portion is in the downward direction of the assembly. It is preferable to adopt a configuration having an end.

By adopting such a configuration, the area of the sandwiched portion of the resin cover that is sandwiched between the catch bar main body and the metal core increases, and at a plurality of locations in the vertical direction of the belt-like plate of the assembly. The resin cover can be surely prevented from being detached.
Furthermore, even if the pressing engagement portion of the resin cover is engaged with the engagement portion of the carriage and the carriage is swung in the front-rear direction of the river race machine, the sandwiched portion of the resin cover is By being configured to be short at the upper end of the assembly and long at the lower end, the pressing engagement portion, which is the contact portion, is firmly held and the pressing engagement portion is prevented from being detached from the metal core. it can.

  Further, in the above configuration, the resin cover is divided into a plurality of angles with an angle with respect to the vertical direction of the assembly, and the plurality of divided resin covers are closely attached to and integrated with the metal core. It is preferable.

By adopting such a configuration, even if the press engagement portion of the catch bar is engaged with the engagement portion of the carriage in which a pair of relatively thin carriage plates are overlapped, The carriage can be prevented from getting caught in the joint between the resin covers of the catch bar, and the operation of the engagement state and the non-engagement state of the carriage and the catch bar can be performed accurately.
That is, when a plurality of resin covers that are simply cut and divided in the vertical direction of the assembly are attached and integrated with the metal core, even if the cut and divided portions are brought into close contact, a slight gap is left. Since the gap and the circumferential portion of the carriage plate of the carriage having a relatively thin structure are on the same surface, the circumferential portion of the carriage plate is fitted into the gap, and the engaged state and the disengaged state described above. May not be performed accurately.
Therefore, as shown in the characteristic configuration, the resin cover is divided into a plurality of angles with respect to the vertical direction of the assembly, and the plurality of divided resin covers are closely attached to each other and attached to the metal core. By adopting the configuration to make it possible, it is possible to ensure an accurate operation of the carriage and the catch bar.

  Furthermore, in the said structure, it is preferable that the said resin cover is ultra high molecular weight polyethylene.

By using ultra high molecular weight polyethylene excellent in wear resistance, impact resistance, and low friction for the resin cover, it is possible to further prevent carriage wear and occurrence of burrs on the carriage. Also, wear of the resin cover can be reduced.
As such ultra high molecular weight polyethylene, one having an average molecular weight in the range of 55 to 56 million (viscosity method) and a density in the range of 0.88 to 1.0 g / cm ³ (JIS K7112) should be used. Is preferred.

  In particular, when the carriage is a general structural rolled steel material (SS steel material), the resin cover is preferably ultra high molecular weight polyethylene.

  Furthermore, in the said structure, it is preferable that the hardness of the said resin cover exists in the range of Shore D hardness 67-69.

  Even if the carriage engagement part and the resin cover press engagement part come in contact with each other several hundreds of times per minute, they have wear resistance that makes them difficult to wear, and shock absorption that makes it difficult for burrs to form on the carriage side. However, if the hardness of the resin cover is within the range of Shore D hardness 67 to 69, the resin cover has such wear resistance and shock absorption performance. Suitable as cover material. Thereby, the service life of the carriage and the catch bar can be further extended, and the productivity of the river race machine can be improved.

  Hereinafter, the river race machine 100 including the catch bar according to the present application will be described.

FIG. 1 shows a schematic configuration of a river race machine 100, and the river race machine 100 is viewed from an oblique front.
The river race machine 100 guides the beam warp yarn 11 wound around the plurality of beams 10 from the lower position of the machine base to the comb portion 16 via the sley S, and the river warp yarn 11 is tangled between the beam warp yarn 11 and the bobbin yarn 15. The lace 13 is formed, and the formed river lace 13 is alternately lifted and held by the back point bar BPB and a front point bar (not shown), and at the same time, the lace 13 is pulled up by a porcupine roller PPR wound with an upper cloth. The generated river race 13 employs a configuration in which it is wound around a winding roll 12 in contact with the porcupine roller PPR.

In the river race machine 100, a large number of carriages 17 as shown in FIGS. 4, 5, and 6 are used. As shown in FIG. 5, each carriage 17 accommodates the bobbin 14 around which the bobbin thread 15 is wound. As the weaving progresses, the bobbin thread 15 is sent out from the bobbin 14 to advance the weaving.
As will be described later with reference to FIGS. 5, 7, and 8, the carriage 17 is passed through the beam warp yarns 11 arranged in a large number in the left-right direction of the machine base by the catch bar 30. It is configured to swing and move in the front-rear direction. Therefore, in the river race machine 100, the bobbin 14 accommodated in a state where the bobbin yarn 15 is wound is movable in the front-rear direction of the river race machine 100. The position of the bobbin 14 (and thus the position of the carriage 17 and the comb portion 16 that determines the movement path of the carriage 17) is unchanged in the left-right direction of the river race machine 100.

  As shown in FIG. 1, the beam warp yarn 11 is moved in the left-right direction of the river race machine 100 between the sley S and the swing position of the carriage 17 (bobbin 14). A bottom bar BB and a top bar TB are provided from the slee side. Here, both the bars BB and TB are configured so as to position the position of the beam warp yarn 11 in the horizontal direction of the machine base. The relative positional relationship between the beam warp yarn 11 and the bobbin yarn 15 is expressed by the carriage 17. The river race 13 can be formed by changing the relationship with the timing of the movement of the bobbin 14 in the front-rear direction.

With reference to FIG. 2, the formation process of this river race 13 is demonstrated below.
In FIG. 2, a line illustrated in parallel with the vertical direction (drawn with an alternate long and short dash line extending in the vertical direction) is a line indicating the bobbin thread 15, and the bottom bar BB and the top are formed with respect to the bobbin thread 15. The beam warp yarn 11 is positioned by the bar TB.
In the river race machine 100, the beam warp yarn 11 is entangled with the bobbin yarn 15 while moving in the lateral direction and moving in the front-rear direction, whereby the river race 13 is formed. That is, the position of the beam warp yarn 11 on the structure is specified by alternately including a laterally moving portion ww extending in the lateral direction and an arc-shaped knitting progressing portion wh which means movement in the front-rear direction, that is, progress of knitting. Is done.

In the example shown in FIG. 2, the beam warp yarn 11 extends from the first lateral movement unit www1 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 taken alternately with respect to the yarn 15.
Here, in the drawing, the position of the bobbin yarn 15 is fixed, and the beam warp yarn 11 is described and moved so as to move to the front side and back side. As shown in FIG. 1, the bobbin yarn 15 is repeatedly moved in the front-rear direction with respect to the beam warp yarn 11 located at a fixed position in the front-rear direction of the machine base. The relative positional relationship between the yarn w11 and the bobbin yarn 15 is determined.

The above is the description of the front / back relationship between the beam warp yarn 11 and the bobbin yarn 15. Hereinafter, the formation of the laterally moving portion ww and the knitting progression portion wh described above will be described.
In FIG. 2, (a), (b), (c), (d), and (e) show the position of the beam warp yarn 11 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 11 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 drawing, the guide hole ht provided in the top bar TB is relatively large, and further, the beam warp yarn 11 is positioned on the right side of the bobbin yarn 15 by making the hole shape square. 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 11.
Therefore, the position of the beam warp yarn 11 with respect to the bobbin yarn 15 shown in FIG. 2A is such that the beam yarn 11 is positioned at the relative position on the left side of the central guide hole ht provided in the top bar TB. The position with respect to the rightmost bobbin thread 15a shown is determined.

  Thereafter, 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 11 is applied to the third bobbin yarn 15c from the right side. The position is determined. That is, the lateral movement part ww1 is formed. After this step, the bobbin yarn 15 moves in the longitudinal direction of the machine base, the beam warp yarn 11 is positioned on the front side with respect to the bobbin yarn 15, and the bobbin yarn 15 is entangled with the beam warp yarn 11. It becomes a state. This state is the state shown in FIG. 2B, and thus the knitting progression portion wh described above is formed.

  Subsequent knitting is lateral movement related to the top bar TB and the bottom bar BB (formation state of the lateral movement part ww2 shown in FIG. 2C), and forward and backward movement of the bobbin yarn 15 at each stage (FIG. 2C). By repeating the state change from FIG. 2D to FIG. 2D and the state change from FIG. 2D to FIG. 2E, 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 100.
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. The top jacquard device Jt is vertically moved by a jacquard device Jt1 for a 2-position selection dropper. The top bar TB moves in the left-right direction in FIG. 3 with respect to the dropper D positioned in FIG. 3, and the left-side movement of the top bar TB is restricted by the positioning piece s (see FIG. 3) provided at the tip of the dropper. Thus, the positioning is performed.

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.

FIG. 4, FIG. 5, and FIG. 6 show the vicinity of the comb portion 16 of the river race machine 100.
In the center of the comb portion 16, the beam warp yarns 11 described so far are arranged from the bottom to the top, and a large number of beam warp yarns 11 are arranged in the front and back direction of FIG. Yes. Each carriage 17 described above is guided by each comb Cm, and is configured to be able to move in the front-rear direction of the machine base through the beam warp yarns 11.

  As shown in FIGS. 4, 5, and 6, a pair of front and rear comb beds Cb is provided in the lower part of the comb unit 16, and the number of guides of the carriage 17 is provided in the upper part of both the comb beds Cb. Corresponding number of combs Cm are planted correspondingly. The comb bed Cb is a longitudinal member that extends in the front and back direction of the paper surface in FIG.

Carriage Now, with respect to the numerous combed combs Cm, the carriage 17 in which the bobbin 14 is housed is in the standing position as shown in FIGS. 5 and 6 between the combs Cm, as shown in FIG. Many are arranged in the left-right direction of the race machine. As shown in FIG. 5, the carriage 17 has a generally trapezoidal rice ball shape, and is configured such that the bobbin 14 can be accommodated in a central portion thereof.
Further, the carriage 17 is configured by overlapping a pair of carriage plates having the same shape with a relatively thin plate shape, and the bobbin thread 15 wound around the bobbin 14 from between the carriage plates is sent out as the weaving progresses. It is configured to be possible. The bottom surface of the carriage 17 is formed in an arc shape along the swing locus so that the carriage 17 swings smoothly.

  As shown in FIG. 5, an engagement groove (engagement portion 18) capable of engaging with the press engagement portion 37 of the catch bar 30 is provided in a lower portion of both side ends of the carriage 17.

  5A, the back catch bar 32 of the catch bar 30 is lowered, the carriage 17 and the back catch bar 32 are engaged, and the carriage 17 moves according to the movement of the back catch bar 32. It shows the operating state. Further, the drawing on the left side of FIG. 5A shows a state in which the front catch bar 31 of the catch bar 30 is lifted and the engagement between the two is released.

On the other hand, in the drawing on the left side of FIG. 5B, the front catch bar 31 of the catch bar 30 is lowered, and the carriage 17 and the front catch bar 31 engage with each other. Indicates a state in which the moving operation is performed. Further, the drawing on the right side of FIG. 5B shows a state where the back catch bar 32 of the catch bar 30 is lifted and the engagement between the two is released.
Catch Bar Operation Control Mechanism FIGS. 7 and 8 schematically show a mechanism (operation control mechanism) that controls the operation of a pair of catch bars 30 provided in front and rear of the river race machine 100.
This mechanism is configured so that the catch bar 30 draws a predetermined movement locus shown in FIGS.

First, FIG. 8 will be described. By the rotational drive transmitted to the camshaft Cs, the pair of catch bars 30 at the front and rear of the machine base is guided to the comb Cm according to the movement of the corresponding pair of catch bar arms Ca. It is configured to swing in the front-rear direction of the river race machine 100 along the trajectory. That is, when the camshaft Cs rotates, the gear G2 connected to the eccentric lever E meshing with the gear G1 attached to the camshaft Cs rotates, and the eccentric lever E is operated up and down. One end of the eccentric lever E is pivotally attached to one end of a rotating body K that can rotate around the fixed axis X, and the eccentric lever E moves up and down to rotate the rotating body K. The front dolly arm Fd and the back dolly arm Bd that are rotatably attached to the other end of the rotating body K are operated up and down. The front dolly arm Fd is connected to the front catch bar 31 and the back dolly arm Bd is connected to the back catch bar 32 via a lever fixed by the catch bar shaft Ct.
Therefore, as shown in FIG. 8, when the eccentric lever E moves downward as indicated by the solid line arrow from the state where the eccentric lever E is at the highest position, the front dolly arm Fd moves downward, and the front catch bar 31 moves away from the carriage 17, and when the eccentric lever E moves upward as indicated by the dotted arrow from the state where the eccentric lever E is at the lowest position, the front dolly arm Fd moves upward. As a result, the front catch bar 31 moves in a direction approaching the carriage 17. On the other hand, as shown in FIG. 8, when the eccentric lever E moves downward as indicated by the solid line arrow from the state where the eccentric lever E is at the uppermost position, the back dolly arm Bd moves upward to move the back. The catch bar 32 moves in a direction approaching the carriage 17, and the back catch bar 32 moves from the state where the eccentric lever E is at the lowest position as the back dolly arm Bd moves downward as indicated by the dotted line arrow. It moves in the direction away from 17. Therefore, the movement of these catch bars 30 in the front-rear direction of the river race machine 100 is such that when the front catch bar 31 moves forward, the back catch bar 32 moves forward (indicated by solid arrows in FIG. 8). When the front catch bar 31 moves backward, the back catch bar 32 moves backward (indicated by a dotted arrow in FIG. 8), and operates in the same direction in conjunction with each other. Note that when moving in the direction approaching the carriage 17, the pressing engagement portion 37 of the catch bar 30 engages with the engagement portion of the carriage 17 in the moving process because the movement simultaneously moves slightly downward. On the other hand, a force is applied to press downward so as to follow an arcuate locus guided by the comb Cm.

  Next, FIG. 7 will be described. As shown in FIG. 7, rotatable rollers R are attached to both ends in the longitudinal direction of the catch bar body 33 (see FIG. 6), and both ends in the longitudinal direction of the comb bed Cb are A vertical motion control cam Cu having a surface with which the roller R can abut is provided. The cam Cu has a surface along an arcuate locus on which the carriage 17 is guided by the comb Cm, and has a undulating portion L at the center of the surface. When the roller R attempts to pass through the undulating portion L, the roller R is raised, and when the roller R leaves the undulating portion L, the roller R is lowered. Thus, when the roller R swings in the vertical direction, the catch bar main body 33 provided with the roller R, and thus the catch bar 30 swings in the vertical direction. Therefore, as the catch bar 30 in FIG. 8 swings in the front-rear direction, the roller R passes through or moves away from the undulating portion L, and the catch bar while taking the locus shown by the arrow in FIG. The bar 30 will swing up and down.

  Therefore, the operation of the catch bar described in FIG. 5 is realized by the operation control mechanism.

  On the other hand, the movement of the carriage 17 in the front-rear direction is performed at the timing when the position of the beam warp yarn 11 in the horizontal direction of the machine base is determined by the top bar TB and the bottom bar BB, as described above with reference to FIG. The movement to the front side and the movement to the rear side are executed alternately.

Catch Bar FIGS. 6 and 9 show the configuration of the catch bar 30. As shown in FIG. 6, the catch bar 30 is configured by a member that is long in the horizontal direction of the base of the river race machine 100. As shown in FIG. 9, the catch bar 30 includes a catch bar main body 33 having an insertion hole F through which a bolt B as a fastener 40 can be inserted, and a bolt fixing female screw capable of fixing the inserted bolt B. A metal core 35 having H, and a resin cover 36 having a substantially U-shaped cross section that is clamped and fixed by fixing the catch bar main body 33 and the metal core 35 with bolts B, are provided.

The catch bar body 33 is connected to a mechanism (operation control mechanism) that controls the operation of the catch bar 30, and as described above, the swing of the catch bar 30 is controlled by this mechanism. The catch bar main body 33 is preferably a long square iron member in the horizontal direction of the river race machine 100, but is not particularly limited as long as it is a longitudinal member (see FIG. 6).
Further, at both ends of the catch bar main body 33 in the longitudinal direction, rollers R are provided which are in contact with the upper surface of the vertical movement control cam Cu and are rotatable (see FIG. 6).

  The metal core 35 is not particularly limited as long as it is a metal, but it is preferable to use a general structural rolled steel (SS steel). As shown in FIG. 10, the metal core 35 is elongated like a belt-like plate, and includes a bolt fixing female screw H having a thread groove for fixing the bolt B as shown in FIG. 9. The catch bar main body 33 and the metal core 35 are fixed by tightening the bolt B and screwing it into the bolt fixing female screw H.

  Further, as shown in FIG. 9, the metal core 35 is short in the vertical direction on the side where the metal core 35 is in contact with the catch bar main body 33 so that the resin cover 36 can be sandwiched between the metal cover 35 and the catch bar main body 33. The metal core 35 is formed long in the vertical direction on the side in contact with the non-clamping portion J of the resin cover 36. That is, in FIG. 9, the length in the vertical direction of the metal core 35 on the side where the metal core 35 and the catch bar body 33 are in contact is larger than the length in the vertical direction on the side in contact with the non-clamping portion J. It is formed shorter by that amount. As a result, a portion where the metal core 35 is configured to be short can be used as the sandwiched portion 38 of the resin cover 36, and a portion where the resin cover 36 is pinched and fixed can be secured. Furthermore, as described above, the metal core 35 is configured to be short in the vertical direction on the side where the metal core 35 is in contact with the catch bar main body 33. However, as shown in FIG. It has become. That is, on the side where the metal core 35 is in contact with the catch bar main body 33, the lower side of the metal core 35 is configured to be shorter than the upper side so that the lower sandwiched portion 38b (length Wb) of the resin cover 36 is on the upper side. When the pressing engagement portion 37 of the catch bar 30 pulls the engagement portion 18 of the carriage 17 and moves it back and forth, it can be configured to be longer than the sandwiched portion 38a (length Wa). Even if the load applied to the portion 38b is increased, it is possible to prevent the resin cover 36 from being detached.

As shown in FIGS. 9 and 10, the resin cover 36 is a belt-like longitudinal member having a substantially U-shaped cross section including the sandwiched portion 38 described above.
As shown in FIG. 9, the clamped portion 38 is configured such that the lower clamped portion 38b (length Wb) is longer than the upper clamped portion 38a (length Wa). Further, as shown in FIG. 9, the sandwiched portion 38 is configured to be thicker than the portion where the metal core 35 is formed short in the vertical direction in the direction in which the bolt B is inserted. That is, as shown in FIG. 9, the sandwiched portions 38a and 38b (thickness W2) are more in the direction in which the bolt B is inserted than the portion (thickness W1) where the metal core 35 is formed shorter in the vertical direction. On the other hand, it is formed thick. Thereby, when the metal core 35 and the catch bar main body 33 are fixed with the bolt B, the to-be-clamped part 38 thicker than the metal core 35 is first clamped as the bolt B is fixed, and then the metal core 35 is By being fixed, the to-be-clamped part 38 will be clamped and fixed reliably.

  The resin cover 36 is not particularly limited as long as it is a resin, but it is preferable to use ultrahigh molecular weight polyethylene. By using ultrahigh molecular weight polyethylene, which is rich in impact resistance and wear resistance, for the press engagement portion 37 of the resin cover 36, the engagement portion 18 of the carriage 17 and the press engagement portion 37 of the catch bar 30 are engaged. Even if the engagement / disengagement state is repeated, the generation of burrs at the engagement portion 18 of the carriage 17 can be reduced, and the wear of the carriage 17 and the catch bar 30 can be reduced.

In particular, as the ultra high molecular weight polyethylene, one having an average molecular weight of 55.5 million (viscosity method) and a density of 0.94 g / cm ³ (JIS K7112) may be used.
The resin cover 36 preferably has a Shore D hardness of 67 to 69.

  The shape of the pressing engagement portion 18 is not particularly limited as long as it is a shape that engages with the engagement portion 18 of the carriage 17.

  On the other hand, as shown in FIG. 10, the resin cover 36 is divided into a plurality of parts with a predetermined angle with respect to the vertical direction of the belt-like plate. Such an angle is not particularly limited as long as it can prevent the carriage 17 from being caught in the joint between the resin covers 36 of the catch bar 30, but is preferably in the range of 10 to 15 degrees. In this configuration, the joint extends in an oblique direction with respect to the vertical direction.

As shown in FIG. 10, the assembly 41 is configured by forming a belt-like plate having a short vertical width and a wide horizontal width, in which the metal core 35 and the resin cover 36 are mounted and integrated.
As shown in FIG. 10, when mounting and integrating the metal core 35 and the resin cover 36, a plurality of resin covers 36 cut at an angle with respect to the vertical direction are brought into close contact with the metal core 35. Install and integrate in a state.
By adopting such a configuration, it is possible to prevent the carriage 17 from being caught in the joint between the resin covers 36 of the catch bar 30, and the engaged state and the disengaged state of the carriage 17 and the catch bar 30. Can be performed accurately.

  In the river race machine, it is possible to provide a river race machine and a catch bar used in the river race machine that can prevent the carriage and the catch bar from being worn and can prevent the carriage from generating burrs.

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 machine with respect to the top bar and the bottom bar of the river race machine The perspective view which shows the outline of the arrangement | positioning state of the carriage in a comb part Explanatory drawing showing details of comb part Explanatory drawing showing the outline of the comb part Explanatory drawing of catch bar operation control mechanism Explanatory drawing of catch bar operation control mechanism Configuration diagram of catch bar Assembly diagram of assembly The figure which shows the abrasion state of a conventional carriage, and the generation | occurrence | production state of a burr | flash.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 River race machine 10 Beam 11 Beam warp yarn 12 Winding roll 13 River race 14 Bobbin 15 Bobbin yarn 16 Comb part 17 Carriage 18 Engagement part 30 Catch bar 31 Front catch bar 32 Back catch bar 33 Catch bar main body 35 Metal core 36 Resin cover 37 Press engagement portion 38 Clamped portion 38a Upper clamped portion 38b Lower clamped portion 40 Fastener 41 Assembly

Claims (10)

A beam warp yarn wound around a plurality of beams is guided to a comb portion, a river lace is formed by entanglement between the beam warp yarn and a bobbin yarn in the comb portion, and the formed river lace is wound on a winding roll. In structure,
The comb portion includes a carriage that houses the bobbin around which the bobbin yarn is wound, and the posture is selectively set between an engagement posture that engages with the carriage and a non-engagement posture that does not engage. A front catch bar that moves the carriage in the front-rear direction of the beam warp yarn in the engaged state engaged with the carriage, and the carriage is moved forward and backward of the beam warp yarn at a timing different from the movement of the front catch bar. A river race machine with a back catch bar that moves in a direction,
Each catch bar is clamped and fixed by a catch bar main body fixed to the operation control mechanism of the catch bar, a metal core fastened and fixed to the catch bar main body by a fastener, and the catch bar main body and the metal core. Resin cover,
A river race machine, wherein the resin cover is provided with a pressing engagement portion that is pressed and engaged with the engagement portion of the carriage. The assembly in which the resin cover is mounted and integrated with the metal core is configured to form a strip-like plate having a short vertical width and a long horizontal width, and a sandwiched portion sandwiched between the catch bar main body and the metal core includes: It is provided at both the upper end and the lower end of the assembly and is configured to be short at the upper end and long at the lower end,
The river race machine according to claim 1, wherein the pressing engagement portion is a lower end of the assembly.   The resin cover is divided into a plurality of angles at an angle with respect to the vertical direction of the assembly, and the plurality of divided resin covers are closely attached to and integrated with the metal core. The described river race machine.   The river race machine according to any one of claims 1 to 3, wherein the carriage is a general structural rolled steel, and the resin cover is ultra high molecular weight polyethylene.   The river race machine according to any one of claims 1 to 4, wherein the resin cover has a hardness within a range of Shore D hardness of 67 to 69. A beam warp yarn wound around a plurality of beams is guided to a comb portion, a river lace is formed by entanglement between the beam warp yarn and a bobbin yarn in the comb portion, and the formed river lace is wound on a winding roll. Used in construction river race machine,
The comb portion includes a carriage that houses the bobbin around which the bobbin yarn is wound, and the posture is selectively set between an engagement posture that engages with the carriage and a non-engagement posture that does not engage. A catch bar that moves the carriage from the front side to the rear side of the beam warp yarn in the engaged state engaged with the carriage, or moves the carriage from the rear side to the front side of the beam warp yarn. There,
A catch bar body fixed to the operation control mechanism, a metal core fastened and fixed to the catch bar body by a fastener, and a resin cover sandwiched and fixed by the catch bar body and the metal core,
A catch bar in which the resin cover is provided with a pressing engagement portion that is pressed and engaged with the engagement portion of the carriage. The assembly in which the resin cover is mounted and integrated with the metal core is configured to form a strip-like plate having a short vertical width and a long horizontal width, and a sandwiched portion sandwiched between the catch bar main body and the metal core includes: It is provided at both the upper end and the lower end of the assembly and is configured to be short at the upper end and long at the lower end,
The catch bar according to claim 6, wherein the pressing engagement portion is a lower end of the assembly.   The structure according to claim 6, wherein the resin cover is divided into a plurality of portions at an angle with respect to the vertical direction of the assembly, and the plurality of divided resin covers are attached and integrated with the metal core. The catch bar according to 7.   The catch bar according to any one of claims 6 to 8, wherein the resin cover is ultra high molecular weight polyethylene.   The catch bar according to any one of claims 6 to 9, wherein the resin cover has a hardness within a range of Shore D hardness of 67 to 69.

Images