JPS5819777B2 - Jiyaka Doyou Punching Ki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a punching machine for jacquard, which electrically reads the design pattern and directly mechanically searches the punch tape punched by a tape puncher, thereby forming a jacquard punching machine based on the pattern. It is characterized by punching cards.

The pattern of the design drawing is electrically read, the data is stored in the punch tape by punching the tape, the tape is input into a punching machine, the punching pins are controlled by the tape puncher, and the jacquard card is produced. The present inventor has developed a Jacquard card punching machine for making Jacquard cards, but the present invention is improved so that Jacquard cards can be punched by directly mechanically reading the punch tape.

An embodiment of the device of the present invention will be explained below.

The device of the present invention has a punching section that selects a hole to be punched and pushes out a punch for the jacquard card. B. A punch tape support section C1 which electrically reads the original design and engages the perforated punch tape with the punching section B based on the data. It consists of a drive section which drives each of the above sections.

The jacquard card feeding section A is composed of a die 1 and sprockets 2 and 3 provided above and below the die 1, and feeds a jacquard card 4 to be punched onto the die 1 by the sprockets 2 and 3.

The die 1 is provided with perforations in the same arrangement as the holes of the jacquard card 4.

The punching section B has a mechanism for reciprocating the punch advancing toward the dice of the Jacquard card feeding section A.

A base 5 is supported by a support member (not shown) and has rising parts 6 and 7 at both ends, and the rising part 6 is connected to the die 1.
Position it opposite to.

A punch 8 is provided in the rising portion 6 at a position opposite to the holes of the die 1 arranged in the same arrangement as the hole arrangement of the Jacquard card 4.

The punch 8 is slidably fitted into the rising portion 6.

A short bar 9 is installed in the rising portion 7 in a manner similar to that of the punch 8.

The same number of weft bars 10 and bushing bars 11 as the short pars 9 are provided between the short pars 9 and the punches 8.
-11, constitutes a bushing member consisting of punch 8.

The number of bushing members is the same as the number of punches 8.

Reference numeral 12 denotes a guide for supporting the wet bar, and the wet bar is fitted into the guide 12 so that it can slide freely and the right end in FIG. 1 can swing up and down.

13.14 is a guide for the bushing bar 11.
is slidably inserted.

Each of the weft bars 10 is engaged with a hook 17 that is slidably provided in the vertical direction by guides 15 and 16, and when the hook 17 is lowered, the right end of the weft bar 10 that is engaged with the hook (see FIG. ) can be lowered.

The number of hooks 17 is the same as the number of holes in the jacquard card 4, but the floating of the hooks 17 is caused by the punch tape 1 described later.
The arrangement of the holes shall be similar to that of No. 8, or the arrangement of the holes of the parent jacquard.

Here, in the conventional punching machine for Jacquard cards, by placing a parent Jacquard card under the hook 11 and bringing the card into contact with the hook 17, the hook connected to the punch operated for punching is activated. I had chosen.

Therefore, the arrangement of the hooks 17 was the same as that of the parent Jacquard card.

However, if you use punched tape instead of the parent Jacquard card, there is a difference in the hole arrangement specifications between the two, and it is not possible to use the punched tape immediately while using the parent Jacquard card.

In other words, the punch tape has a perforation pitch of 2.5 according to the ISO standard.
40mm, and jacquard card is 2.603mm.

Therefore, even if the number of hooks 17 is the same, the width of the hook 17 arrangement must be made smaller when using punched tape in the conventional device than when using parent jacquard cards.

However, in order to simply reduce the width of the array of hooks 17, the hooks on both sides must be turned inward, and this will adversely affect the movement of the hooks 17 when they are raised and lowered, so the holes are arranged continuously in the punch tape. Instead, several rows without holes are provided for the maximum number of hole rows for one pick (168 rows).

If a conventional punching unit is used for this purpose, the guide 16 should have a shape in which the hooks 17 are not arranged at equal intervals, but have rows without holes at appropriate intervals, and the tips of the hooks are Distribute the holes so that they closely match the hole arrangement on the parent punch card.

A punch tape support portion C is provided at the bottom of the hook 17.

Reference numeral 18 denotes a punch tape guide having a U-shaped cross section with an open upper part, and the surface corresponding to the hook 17 is the punch tape running surface 1.
9, small holes 20 are bored in the surface in the same manner as the arrangement of the hooks 17, and the hooks 17 are provided on a base 21.

Guide rolls 22 and sprockets 23 are provided on both sides of the punch tape guide 18 to guide the punch tape 24 to the running surface 19 of the punch tape guide 18.

A pulse motor 25 rotates a gear 27 that meshes with a gear 26 coaxial with the sprocket 23.

One end of a swinging arm 30 supported by a shaft 29 is brought into contact with a leg rod 28 hanging down from the lower surface of the base 21 .

The drive section is operated by interlocking the left and right reciprocating movements of the punching section B and the up and down reciprocating movements of the punch tape support section C.

A cam follower 31 provided at one end of the swinging arm 30 is fitted into a grooved cam 33 supported by a shaft 32, and as the cam 33 rotates, the base 21 of the punch tape support C moves up and down.

The shaft 32 further supports a grooved cam 34 and a Cheno wheel 35, and a Cheno wheel 38 is installed between the shaft 32 and a Cheno wheel 37 fixed to the shaft of a motor 36.

A cam follower 41 is fitted into the grooved cam 34, which is supported at the tip of a swinging arm 40 which is fixed to a shaft 39 which is supported in a rod frame by a bearing (not shown).

A pinion 42 is fixed to the shaft 39 and meshes with a rack 43 fixed to the base 5, thereby causing the base 5 to reciprocate in the left-right direction in FIG. 1 according to the rotation of the grooved cam 34.

Next, the operation of the device of the present invention will be explained.

The pattern shown on the design drawing is electrically read and the data is used to punch holes in the punched tape.

This operation is performed by a device not shown.

The perforated punch tape 24 is set on the punch tape guide 18 via the guide roll 22 and sprocket 23 of the punch tape support section C.

At this time, the punch tape 24 is set in contact with the punch tape running surface 19 of the punch tape guide 18 so that the perforations in the punch tape 24 and the small holes 20 in the punch tape guide 18 are at the same position.

Next, the rotation of the motor 36 causes the Cheno wheel 37,
The shaft 32 rotates via the chain wheel 38 and the chain wheel 35, and the grooved cam 33 rotates.

Therefore, the cam follower fitted in the groove of the grooved cam 33
The swinging arm 30 swings via the punch tape support part C
The base 21 of is raised, and the punch tape 24 set in the punch tape guide 18 is pressed against the hook 17 of the punching part B from the lower part thereof.

At this time, for example, the hook 17a of the punch tape 24,
17b, the lower ends of the hooks 17a and 17b enter the small holes of the punch tape guide 18, and the hooks 17a and 17b do not change their positions, but the other hooks 17 Since the punch tape 24 has no perforations, it is raised by the punch tape 24 as the base 21 rises.

Therefore, the right end of the weft bar 10 engaged with the raised hook 17 pivots upward in FIG. 1, so that it no longer faces the short bar 9.

At this time, the weft bar 10a engages with the hooks 17a and 17b that do not rise.

Since the position of 10b remains unchanged as described above, the ends of the weft bars 10a and 10b are at the short distance of -9.
It faces the ends of a and 9b.

In this state, as the shaft 32 continues to rotate, the grooved cam 34 rotates, and the swinging arm 40 is swung counterclockwise via the cam follower 41 fitted thereto, and the swinging arm 40 is rotated counterclockwise via the shaft 39, the pinion 42, and the rack 43. Move the stand 5 to the left in Figure 1.

Therefore, the rising portion 7 also moves to the left, and the short par -9 also moves to the left, but the weft bars 10 facing other than the short pars 9a and 9b raise their right ends and are no longer facing the short pars.

Therefore, short par 9a due to the left row of the rising part 7
, 9b are in contact with the ends of the weft bars 10a, 10b, causing the weft bars 10a, 10b to move to the left.

The bushing bars 11a and 11b are moved to the left by the left row of the weft bars 10a and 10b, and the punch 8at
8b is pressed against the die 1 to punch a hole in the jacquard card 4.

As the shaft 32 continues to rotate, the cam follower 41 returns from the convex portion of the grooved cam 34 to the small diameter portion, and the swinging arm 40 rotates the shaft 39 clockwise, moving the base 5 to the first position via the pinion 42 and rack 43. Move to the right in the figure.

As a result, the rising portion 6 also has punches 8a, 8 on its side.
While locking the enlarged part at the end of b, move to the right and punch 8a.
, 8b from the die 1 and the bushing bar 1.
1. The weft bar 10 also moves to the right.

Next, when the grooved cam 33 rotates, the convex portion of the grooved cam 33 rotates the swinging rod 30 clockwise via the cam follower 31, and the base 21 of the punch tape support part C is lowered by its own weight.

Therefore, the punch tape 24 supported on the base 21
Since the hook 17 is also lowered, the hook 17, which was supported upward by the punch tape 24, is lowered, and the punch tape 24 and the hook 1
7 and all the socks 17 are at a uniform height.

In this state, a mechanism (not shown) causes the pulse motor 2 to
5 contacts, the pulse motor 25 rotates, rotates the sprocket 23 via gears 27 and 26, and punches the tape 2.
Send 4 one pick.

When the cam follower 31 is removed from the position of the convex portion of the grooved cam 33, the swinging arm 30 turns counterclockwise and raises the base 21. Therefore, the cam follower 31 rotates the grooved cam 33 in order to wind up and move the punch tape 24. This is done while it is located on the convex part.

As described above, the device of the present invention is provided with a tape guide on the punch tape support part C, and a hook connected to the punch for punching the jacquard card is provided on the upper part of the tape guide, and the hook is guided at a pitch equal to the pitch of the punch tape. , and because rows without holes were provided at appropriate intervals to prevent the hooks from being displaced more than necessary, the hooks located outside the group of hooks that were lined up on the top of the punch tape guide were also 1. There is no need to align the lower end of the hook with the punch tape and tilt it inward to a particularly large extent, and the vertical movement of the hook can be directly controlled using the punch tape, which has a perforation pitch that is different from the pitch of the jacquard card. can now be used to perforate jacquard cards by mechanical action.

[Brief explanation of the drawing]

Figure 1 is a partially longitudinal front view of the device of the present invention, Figure 2 is a side view of the punch tape support section C, Figure 3 is an enlarged front view of the punch tape guide, and Figure 4 is a front view of the hook guide. be. A... Jacquard feeding section, B...
・Punching part, C... Punch tape support part,
D... Drive unit, 16...-Guide, 1
7...Hook, 24...Punch tape.

Claims (1)

[Claims] 1. A punch tape guide that electrically reads the pattern of the design drawing and supports the punch tape that has been punched at a predetermined position according to the data is provided so as to be movable forward and backward relative to the hook of the jacquard card punching section, and This punching machine for jacquard is characterized in that the hook guide provided in the section has several rows without holes for the maximum number of rows for one punch.