JPH0816301B2 - High precision reeding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to relates to high-precision reed drawing machine can be automatically properly inserted warp density of the reed, in particular
Reeds that insert warp threads into the reeds of a loom that weaves high-density woven fabric
・ Drawing-in
n) Useful for labor saving .

[0002]

As is well known, recently, in the field of woven fabric products.
Oite aims to higher value-added woven fabrics, traditional your
When beyond the traditional applications such as clothing, bedding, for example the development of a special woven products that can be used in applications such as electronic industries and construction have been proceeding Me. However, such special-purpose weave
Fabric, special thread treatment technology in its production is required, previous
There was a difficulty that it could not be handled by the textile machine.

[0003] For example, the ultrafine fibers are made to have their directions accurately orthogonal to each other.
The warp and the weft were plainly woven accurately and evenly at equal intervals .
Woven fabrics are highly expected as a plotting scale for manufacturing electronic parts, but when weaving them,
Has more than 200 reeds per inch arranged vertically.
Since a high density reed must be used, a conventional reed machine
Depending on the situation, such fine warp yarns can be mechanically and continuously
It is absolutely impossible to draw in
Therefore, this type of reed work is performed by a skilled worker with extremely high skill.
He relied on elaborate manual work .

Even so, such inconvenience is alleviated even a little.
It has been an effort to do so, and in the past, light was projected on the reed and the light that escaped from between the reeds was analyzed.
And detect the reed eyes, which is the narrow gap between the reeds and the reeds.
A device that mechanically passes the warp through the gap is proposed.
(Japanese Patent Publication No. 61-502472). But this
Known devices such as the one described above support the reeds that are the gaps between the reeds.
Although it is possible to over switch, the ultrafine fiber warp reed dents and lamellae
A concrete example that makes it possible to actually insert through
The mechanism is incomplete, and automatic continuous insertion of warp threads is still
It can not be realized and still requires the skillful work of skilled workers
It was .

[0005]

SUMMARY OF THE INVENTION The present invention is based on the conventional draft.
-Ining machine (reed drawing-i)
n machine) breaks the technical bottleneck mentioned above
It was made in order to do high-density reeds and extra fine fiber warp
Can be inserted automatically and accurately and efficiently.
It is a technical subject to provide a reeding machine with high accuracy .

[0006]

To solve Means for Solving the Problems] This object, the present inventors, first, the structure was reed device to optically SaguTeru detect reed space between the reed dents and lamellae Technical premise
And a mechanical means for causing a thin plate-shaped threader with a hook part for hooking and holding the warp to protrude from the standby position on the back surface of the reed into the reeds and back to the standby position again.
Using the suction pressure of air , the cut end side of the warp yarn
Suck it in and pull it in to tension the warp and keep it stable
Adopting a warp preparation tensioner that protruded from between the reed feathers
Hook the warp thread that should be reed on the hook of the threader
This means that the means of doing
The skillful combination of such technical means has a key to technological thought.
It

It should be noted that the present invention is added as a precaution.
Precision reed machine, the movement of the moving mechanism and the threader of
When adjusting, you can do as follows. That is,
Light irradiation shines in a predetermined area of the light sets the reed, its SaguTerumitsu <br/> after converting into an electric signal is received by a charge coupled device, the dents and lamellae by analyzing the electrical signal to detect the gap, thread
Da is by backward protruding from the standby position before the reed enters the gap between the lamellae and the lamellae, or from dents of the gap to the standby position, the present invention constructed to pass pull the warp
Of In the high-precision reed drawing machine, prior to setting the reed, toward the light source to the charge coupled device One is projecting lightゝthreader is only by projecting moving the tip of the threader is the charge coupled device from a light source The light source is analyzed by analyzing the electric signal of the electric coupling element when the projected light of the
- to detect the relative positions of the charge coupled device and the threader tip, the threader and the light source - the positional relationship between the charge coupled device
Correcting the positional relationship between the two when there is an error
It is. If such corrective action is taken, the reed
It is possible to insert the threader accurately in the reciprocal gap
Performance and reliability will be improved .

[0008]

EXAMPLES Hereinafter, based on the embodiment shown the present invention in the accompanying drawings and will be described in more detail.

The overall operation of the reeding machine of this embodiment is as follows. First, a high-density reed on reed machine D (33
0 birds / in) R is set horizontally. This reed machine D
Is a ball that is driven by the servomotor M to rotate in the forward and reverse directions.
A screw (ball screw) B is flat on the lower side of the reed R.
It is erected horizontally in the row and meshed with this ball screw B
The work carrier WC that has been moved accurately by the required distance.
You can move. And this work carrier
A) The WC has the light related to the arrangement as shown in FIGS.
Source 11, CCD camera 12, threader 21 and the like.
A pulse motor that causes a protruding pull-in operation in the threader
22, a warp suction tensioner 31, and FIGS.
The warp manipulator 32 and the warp cutter 3 shown in FIG.
3, warp transport hook 34, and warp selector
35 and a yarn handling mechanism 40 shown in FIG. 8 are warp yarns.
It is installed systematically along the movement route of.

By the way, if you add a note,
In addition, above the reed R set on the reeding machine D,
The light source 11 and the warp suction tensioner 31 are arranged,
The CCD cover is located below the light source 11 with the reed R interposed therebetween.
The camera 12 and the threader 21 are placed opposite each other, and
The structure that accompanies the movement of the carrier WC
ing. Therefore, the high-density reed searched by the light source 11
The image of R is captured by the CCD camera 12, and the image
Is analyzed by the computer C built into the work carrier WC.
The data is stored in the servo motor M as shown in FIG.
Sent to the work carrier WC to move back and forth,
The work carrier has reed wings that maximize the search light passing through.
And arrives at the gap between the reeds, that is, just below the reed eyes. And w
When the carrier WC reaches the reed position, the pulse mode
The slider 22 operates to move the threader 21 upward,
Insert the tip hook part 2f of this into the space between the reeds to insert the threader hook part 2f
Will be projected on the upper surface of the reed R. At this time, reed
One warp W is delivered to the upper surface side of R and is delivered.
The thread end of the warp thread W thus drawn is sucked by the warp thread suction tensioner 31.
It is. The warp suction tensioner 31 is a
The required air is sucked from the suction port 31a by being connected to the presser.
The warp yarn W is sucked by the pressure. Then, this suction
The warp yarn W sucked by the tensioner 31 is projected onto the upper surface of the reed R.
Connected to the position of the hook 2f of the threader 21 that is dispatched,
Exactly the timing that goes to the protruding threader hook 2f
And the warp W is set to the threader hook 2f.
Get caught in. In this way, the warp W is attached to the threader hook 2f.
When caught, the threader 21 is in pulse mode.
It will be pulled under the reed R by the ta 22
The warp W is to be inserted into the reed of the reed.

Therefore, in the present embodiment which enables the above operation
I would like to explain the specific configuration in more detail.

It was set on the reeding machine D of the present embodiment described above.
As the light source 11 arranged above the reed R, an ultra-high brightness infrared light emitting diode is used. The light source 11 is Wakuki
The bracket H hinged to the carrier WC is turned upward.
It is mounted so that it can be moved back and forth (indicated by the arrows in Figures 3-5).
When setting the reed R on the reed threading machine D,
Bounce up with thread preparation tensioner 31 and dry on reed R.
It is possible to evacuate to a position where it does not interfere .

Further, it is arranged below the set position of the reed R.
The CCD camera is for one-dimensional processing, and the reeds are vertically
The charge-coupled devices are arranged in a row so that they are parallel to the direction in which they are commonly arranged.
It is of a different type, and passes between the reed blades of the reed R and the reed blades.
Depending on the intensity of the incident search light
Make sense. And output from this CCD camera 12
The electric signal is transmitted to the computer as shown in FIGS.
18 and the smoothing process is performed.
The number (1900) where the peak is at the gap between the reeds and the reeds
In other words, it is judged to be a reed. In this embodiment,
Computer C so that the current position of the doller 21 can be determined
The warp thread that has just been threaded immediately before
To move the threader 21 just below the gap on the right of
A command signal is automatically emitted.

Lateral movement of the threader 21, that is,
The move to the reed is that the work carrier WC moves
Therefore, it is done. This movement of the work carrier WC is caused by the rotation of the ball screw B provided at the lower part of the reeding machine D.
Since the computer C issues a control signal to rotate the servomotor M connected to the ball screw B by a predetermined amount (control mechanism shown in FIG. 21), the threader 21 can be operated accurately. To move .

Under the control of the computer C,
The ball screw B moves the work carrier WC
Place the doll 21 under the reed eye, which is the middle position between the reeds and the reeds.
Once stopped by the position, followed by a pulse motor 22 is
Drive to move the threader 21 upward and move it
The hook portion 2f at the end is projected from between the reeds. In this example
Adopted by that threader 21, even thickness in <br/> the thickest portion The thickness of the tip section is at 3.mu. 70micro der because, moreover dents
Positioned and conveyed right under the reed eyes between the reed and the reed wing
So smooth without any misalignment in the reticles in the gap of 330 / in
Will be plugged into .

The operation of the pulse motor 22 causes the thread to move.
When the screw 21 reaches the upper limit position, the tip of the threader
The operation of each mechanism for hooking the warp W on the hook 2f
Will be started.

First, as shown in FIG.
The warp thread row W / W ... held in alignment by the thread holder 51
..From the inside by opening operation of a pair of twill cords not shown
One thread W is separated. This separated warp W
Is a warp selection mounted on the center of the work carrier WC.
It is captured by the kuta 35 (see FIG. 6). That is, the selector 35 is of a size that can catch only one warp W.
35a is formed, and the separated warp yarn W
When hooked on the hook 35a, the hook 35 of the selector
a oscillates toward the work carrier WC and places one warp W
It will be pulled to a fixed position.

Next, the selector 35 pulls the work.
If the warp W has moved to the specified position on the side of the carrier WC
If so, the warp transport hook 34 arranged there
Start operation. This warp transport hook 34
The warp thread W caught by the selector 35
Hook it to the position where it can be picked up by the vibrator 32 and move it
It is a warp relay mechanism that is specifically shown in FIGS. 6 and 7.
It is composed of a hook member that moves back and forth horizontally as shown.
ing. Thus, the warp transport hook 34
The carried warp W is delivered to the warp manipulator 32.
To be done.

A warp manipulator 32 for picking the warp W
Includes a pair of sandwiching forks 32a and 32b,
The pinching forks 32a and 32b perform the pinching operation.
Therefore, the warp yarn W from the selector 35 is sandwiched and inherited.
It is a mechanism. Thus, the warp manipulator 3
The warp W pinched by the two sandwiching forks 32a and 32b is
With the scissors blades 3e, 3e of the warp cutter 33, the predetermined position is
It is cut (Fig. 7) and then this warp manipulator
32 pinches forks 32a and 32b pinch warp W and pinch it.
Rotation around the support shaft 32c (Fig. 8: arrow direction)
Then, the warp W is conveyed to the warp delivery position (FIG. 9).

In this way, the pinch of the manipulator 32 is
Conveyed to the warp delivery position by being pinched by the forks 32a and 32b
As shown in FIG. 9, the warp W thus wound has a warp suction tension.
Stable posture due to air being sucked by Lona 31
At the same time it is held, it is hooked on the hook 2f of the threader 21.
To be Then, the manipulator whose warp delivery operation has been completed
As shown in FIG. 10, the data 32 further includes a support shaft 32c.
The mind will continue to rotate and return to its original position. This and
When the thread end of the warp thread W caught on the threader hook 2f is
Is sucked by the warp suction tensioner 31 and the warp is tightened.
It is held straight in tension. In this example,
The suction port 31a of the warp suction tensioner 31 shown in FIG.
As shown in Fig. 12 and Fig. 12, long deviation is made in the direction of the hook 2f of the threader.
The warp threads are flat and have reached the warp delivery position.
Deep cut to the side of the fork 32a ・ 32b of the operator
Since the slit 31b that is embedded is formed,
The sandwiching forks 32a and 32b of the turrator 32 load the warp W
Even if the warp W is loose when picked and carried,
The yarn end is pulled into the suction port 31a and is sucked and pulled.
Therefore, the thread posture is stably maintained in a tense state .

Thus, the hook 2f of the threader 21 is pulled.
The warp thread W that has been hooked is threaded by the pulse motor 22.
When 21 is driven and pulled below the reed R, the warp W
Air of warp suction tensioner 31 while maintaining sufficient tension
Withdrawal from suction port 31a against suction pressure and insert between reeds
Is removed from the hook 2f of the threader 21 below the reed R.
It In this embodiment, the warp suction tensioner 31 is used.
As shown in FIG. 13, the lower side of the suction port 31a is
The protrusion 31a 'is long and protrudes like a socket, and
As shown in FIG. 4, a hook-shaped guide 31a ″ is formed.
Since it has been cut, the thread end of the cut warp W is completely pulled out.
I kept nervous until just before I came out, so I finished inserting it on the reed
Until warped, the warp W comes off from the hook portion 2f of the threader 21.
There is no fear.

In the present embodiment, below the reed R
The warp thread inserted into the reed R is used to detect the reed eye and the threader.
In order not to hinder the projecting operation of 21, the thread handling mechanism 40
It is organized array I'm in.

Therefore, the thread handling mechanism 40 is shown in FIG.
16 and FIG. 16, a new warp W will be described in detail.
When the thread is inserted into the reed, first, the thread receiver that holds the warp W
The bracket 42 moves downward depending on the rotation angle of the cam 43.
Make. Next, on the boss 44a of the crank plate 44,
Therefore, a swinger that is given a swinging motion on a plane
The warp thread W, which is newly drawn through,
Rotate upward to repel from the bottom of the reed R
Butt 42 went up and was pulled in anew and bounced off
The yarn bundle including the warp yarn W is lifted, and then the swing arm 4
1 passes under the bracket 42 and returns to its original position
It is.

After this thread handling, the computer C
Calculate the distance between the warp thread W inserted in
In order to move the work carrier WC
Continuous reeding by pulling the warp W through
The process is executed.

Another explanation of this embodiment will be given.
What is important is the threader 21, the light source 11 and the CCD camera.
The camera 12 is mounted on the work carrier WC and integrally
The CCD camera 12 has a structure that moves with it.
The relative position of the threader 21 with respect to the reed work described above.
It is possible to measure in advance in advance.
And. First of all, prior to setting the reed R on the reed threading machine D
Then, activate the light source 11 and CCD camera 12, and then
The loose motor 22 is driven one pulse at a time so that the threader 21
To move upward little by little (Fig. 19 shows threader 21
Is a graph showing the amount of light received in the moving process of FIG. You
Then, at a certain point (1900) shown in FIG.
A change in the amount of light appears on the element of the
Since the eggplant peak is detected, the peak position at this time is
As the tip position of the threader 21 with respect to the CCD camera 12
To remember. In this embodiment, the thread
During work because the budder 21 is made of a material that does not easily deform due to heat
However, even if it receives frictional heat with the reed wing, this relative position will change slightly.
Does not occur, but reed due to changes in working environment temperature
Consider the distortion of the threading machine,
It is desirable to keep it .

Further , in this embodiment, the warp yarns described above are used.
Make sure that the thread from the rudder 51 is hooked on the warp selector 35.
In order to allow the warp threads W of the selector 35, as shown in FIG.
・ W ・ ・ ・ ・ ・ ・ Two thread sensors 52 ・ 53 are installed on the side.
Yes, the yarn sensor 5 on the side farther from the selector 35.
The warp threads W in the front row are arranged so as to be close to
It is.

To explain this point in more detail,
A warp holder 5 that holds the warp threads W, W ... in an aligned state.
1 is warp preparation by a rack and pinion mechanism (not shown)
It slides back and forth with respect to the selector 35. On the other hand,
Warp preparation selector 35 mounted on the work carrier WC
Also, in response to the drive of the servomotor M during the reed operation.
Example of warp of the warp holder 51
Id. In this case, if the warp holder 51 is clamped
The density of the warp yarns W, W, ...
The warp W in the front row is
When it is far from the detectable position, the rack
Select the holder 51 by sending the nion mechanism one pitch at a time.
Slide it towards 35. On the contrary, warp
The density of the warp yarn rows W, W, ...
Since the moving distance of the selector 35 is too large, the warp yarn W in the front row
Has reached the position where the thread sensor 53 detects
At this time, the warp thread is produced by the rack and pinion mechanism (not shown).
The holder 51 is retracted, and the warp row W / W ... is backed.
I will let you.

When the experiment was repeated using the reed threading machine of the present embodiment configured as described above, the high density reeds R having a reed wing density of 330 per 1 in
I was able to perform reed with high precision.

[0029]

As described in the above embodiments , in the reeding machine of the present invention, the reeds and the reeds under search
Precisely capture the reciprocating eye by CCD camera
Computer-controlled movement of the rear to the target position accurately
After moving the warp, the warp fed from the warp feeder is transferred.
Sufficiently by warp suction tensioner is disposed on the dynamic trajectory
Keeping a stable tension, the warp thus held appears and disappears
Adopts a mechanism in which the operating threader pulls into the reed and is inserted
As a result, it is possible to automatically and surely make sure that there is no mistake.
It is possible to do so.

As described above, the reeding machine of the present invention is conventionally reed.
High density reed of 200 / in or more, which was said to be difficult to thread
Because it is possible to reciprocate automatically at a precise and high speed
Especially in weaving factories that produce high-density fabrics.
Helps streamline the preparation work, its industrial utility
Is very large.

[Brief description of drawings]

FIG. 1 shows a mechanism of a high-density reeding machine according to an embodiment of the present invention .
FIG. 1 is a schematic plan view showing a general outline with a part omitted.
It

2 is a diagram showing a warp suction tensioner portion in FIG .
It is an expanded perspective explanatory view which abbreviate | omitted and represented.

FIG. 3 is a CCD camera in the work carrier of this embodiment .
La, light source, and threader retracting mechanism are shown in schematic cross section.
FIG. 10 is an explanatory view showing a state before the protrusion of the threader.

FIG. 4 is a CCD camera, a light source, and a threader as in FIG .
The retracting mechanism is shown in a schematic cross-sectional view.
FIG. 6 is an explanatory view of a state in which the ridge passes through the grid and projects to the upper surface.

FIG. 5 is a CCD camera, light, as in FIGS.
A schematic cross-sectional view of the source and threader retracting mechanism
Shows that the threader has pulled the warp thread into the reed and inserted it into the reed.
FIG.

FIG. 6 is a machine showing another part of the work carrier in an enlarged manner.
A structure diagram, separated warp selector from warp holder
The state of hooking the drawn warp and pulling it
It is a thing.

FIG. 7 is an enlarged view of the same work carrier portion as in FIG .
FIG. 6 is an explanatory view of a mechanism in which the warp cutter cuts the warp
The warp manipulator is a picked warp that has been cut.
It represents a state.

FIG. 8: Threads the warp picked up by the warp manipulator
It is a mechanism explanatory view showing the state on the verge of handing over to.

FIG. 9: Rotating the warp picked up by the warp manipulator
Deliver the warp to the threader and release it.
It is a mechanism explanatory view showing a state.

FIG. 10 shows that the warp yarn ends released by the warp manipulator
Mechanism explanation showing the state of being sucked by the warp suction tensioner
FIG.

FIG. 11 is a front view of a threader mounted in this embodiment.
It is.

FIG. 12: Suck the warp suction tensioner in this embodiment
It is explanatory drawing seen from the mouth side.

FIG. 13: Sliding the warp suction tensioner in this embodiment .
It is the explanatory view seen from the cot side.

FIG. 14 is a view showing the warp suction tensioner in the present embodiment as shown in FIG.
It is a plane explanatory view seen from above.

FIG. 15 is a partial oblique view showing the thread handling mechanism in the present embodiment .
FIG.

FIG. 16 is a yarn receiving bracket of the yarn handling mechanism in the present embodiment .
FIG. 6 is a partial perspective view illustrating a state in which the seat is in the sinking position.
It

FIG. 17 shows the search light emitted from the light source by the CCD camera .
The waveform before the smoothing process of the electric signal output according to the strength
It is a waveform graph to represent.

FIG. 18 shows the electric signal of FIG . 17 after being smoothed.
It is a waveform graph.

[Fig. 19] Confirming the position of the threader prior to the reeding work .
CCD camera in threader movement process for adjustment
Waveform group showing the state of the output signal in response to the reception of the search light of
It's rough.

[Fig. 20] Search light hits the tip of the threader
The signal value of the electric signal from the CCD camera is reduced
It is a waveform graph showing a closed state.

FIG. 21 is a computer and a CCD camera according to this embodiment .
Is a block diagram showing the control relationship between the motor and the servo motor.
is there.

[Explanation of symbols]

11 Light Source 12 CCD Camera 21 Threader 2f (Threader) Hook 22 Pulse Motor 31 Warp Suction Tensioner 31a Suction Port 31a '(Suction Port) Lip 31a "(Suction Port) Guide 31b (Suction Port) Slit 32 Warp Manual Purifier 32a Sandwich fork 32b Sandwich fork 32c (manipulator) spindle 33 Warp cutter 34 Warp transport hook 35 Warp selector 40 Thread separating mechanism 41 Swing arm 42 Bracket 43 Cam 44 Crank plate 44a Boss 51 Warp holder 52 Thread sensor 53 ( Over-approach detection) Thread sensor B Ball screw C Computer D Reeding machine H Bracket M (for holding light source) M Servo motor R High density reed W W Warp WC Work carrier

Claims (5)

[Claims] 1. Reed width across the reed wing of the reed set
A work carrier moving toward you; to this work carrier
It is installed, from one side of the reed toward the reed
A light source for irradiating search light; mounted on the work carrier
And the search light emitted from the light source has reed wing
Photoelectrically converts the change in the amount of received light
And a CCD camera for outputting;
By inputting an electrical signal that
The work signal is obtained by calculating the quadrature position and calculating the command signal.
Reed to the drive unit of
A computer that can be moved to the eye position;
The air suction mechanism installed in the rear,
Installed on the moving track of the warp conveyed and supplied before the reed.
The suction end of the conveyed warp yarn is sucked in over a long area.
Warp that pulls only in and stably holds the warp in tension
With suction tensioner; can move in and out of the work carrier
Is placed in the reed and can be inserted into the reed
It is a thin plate-like hook member that is supplied from the warp supply section.
Hook the warp to be pulled into the reed and insert it through the hook.
High-precision reeding machine characterized by including a threader. 2. The suction port of the warp suction tensioner extends along the reed surface.
It has a long flat opening and is sucked.
There is a slit at the mouth end of the suction port where the cut end of the warp comes into contact.
Of claim 1 wherein the formed, precision reed drawing machine. 3. The warp feeder is arranged on the warp holder in an aligned state.
A warp that is sequentially fed out of the retained warp string.
The warp selector that captures the
Hook the warp drawn by the thread selector to the warp cutting position.
Carry warp transport hook to this warp selector
A warp cutter for cutting the carried warp at a predetermined position, the warp
The warp carried by the selector and cut by the warp cutter
A warp yarn manipulator that is picked up and conveyed to the position where it is delivered to the warp tensioner
The device according to claim 1 or 2, which is configured by a user.
The high-precision reed machine described . 4. From the warp row held by the warp holder
Detects the proper allowable limit position of the warp that is being delivered in order
A pair of left and right thread sensors are installed on the work carrier.
The warp picked up can be captured by the warp selector.
Cannot be removed at a distance.
Supports the work carrier via a computer.
Bring the warp to the position where it can be detected, and reversely
The warp thread being fed out comes too close to the work carrier.
Thread sensor that detects excessively approaching thread on the opposite side outputs a detection signal
When doing, move the warp holder relatively in the separating direction.
Warp position detection that enables the warp to be captured by the warp selector
The output mechanism according to any one of claims 1 to 3, further comprising:
High precision reeding machine. 5. A warp thread in which a threader is drawn into the reed and inserted.
The ends of the thread are arranged and arranged by swinging the swing arm.
The separation mechanism according to claim 1, further comprising a separating mechanism.
Of, high-precision reed drawing machine.