JPH07133549A - Pile fabric, change of pile length and weft yarn density in pile fabric loom and apparatus therefor - Google Patents

Abstract

PURPOSE:To weave a fabric full of variety in pile length and weft yarn density. CONSTITUTION:Operation of servomotors 22 and 24 is controlled by a terry motion control computer (C1) according to a pile fabric pattern stored in a pile fabric patterning unit 32 and a terry motion is performed by an expansion bar 6. The terry amount can be varied by combination between plural elemental terry amounts and elemental terry modifiers respectively for setting a pile fabric pattern. Operation of a servomotor 31 is controlled by a draw control computer (C2) according to a weft yarn density pattern stored in a weft yarn density patterning unit 33 and a woven fabric is drawn by a surface roller 7. The weft yarn density can be varied by combination between plural elemental weft yarn density values and elemental weft yarn density modifier values respectively for setting a weft yarn density pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile woven fabric, a method for changing pile length in a pile loom and a weft yarn for forming a pile by changing the relative distance between the beating position of the reed and the cloth fell. The present invention relates to a density changing method and device.

[0002]

2. Description of the Related Art Pile weaving machines capable of changing pile length are disclosed in JP-A-56-73141, JP-A-2-47334 and JP-A-4-11046. In the pile loom disclosed in JP-A-56-73141, the surface roller, which is one of the cloth path forming members, performs terry motion by the terry motion mechanism. JP-A-2
In Japanese Patent Publication No. 47334, the lever supporting the expansion bar is driven in terry motion by the operation of the servo motor. Further, there is disclosed a configuration in which a cam is reciprocally rotated by a servo motor and the sword is driven in terry motion by the cam. Japanese Patent Laid-Open No. 4-
In the pile loom of Japanese Patent No. 11046, a cloth moving roller is driven in a terry motion by a cam rotating in one direction.

In these pile looms, the amount of terry can be changed steplessly, and the pile length can be changed steplessly.

[0004]

If the pile length is changed steplessly, it becomes possible to weave pile woven cloth with various changes.
However, in order to weave a pile woven fabric that is more varied, weaving elements other than the pile length must be changed.

[0005] It is an object of the present invention to provide a pile woven fabric which is richer in variety than a pile woven fabric in which the pile length is changed steplessly, and a weaving method and apparatus therefor.

[0006]

For that purpose, in the invention described in claim 1, the pile length of the pile woven fabric is changed and the weft density is changed.

According to a second aspect of the present invention, there is provided terry motion driving means for changing either one of the reed position of the reed and the cloth fell position of the woven fabric, and the reed of the reed is driven by the operation of the terry motion driving means. A pile loom that changes the relative distance between the position and the cloth fell to form a pile,
A pile weave including a pile length element by at least two basic terry amounts having different sizes and a terry amount obtained by adding or subtracting at least one terry basic change amount to one basic terry amount selected from these basic terry amounts. A pattern is set in the terry amount instructing means, and a first terry amount changing mode in which the selected terry amount instructing means instructs the terry motion driving means to the terry amount driving means;
A second terry amount changing mode in which the terry amount is changed by adding or subtracting at least one terry basic changing amount to one basic terry amount, and the changed terry amount is instructed from the terry amount instructing means to the terry motion driving means. The pile length was changed by combining and.

According to the third aspect of the present invention, a take-up drive means capable of changing the take-up speed of the woven cloth is provided, and the relative distance between the beating position of the reed and the cloth fell is changed to form a pile. For pile looms, at least two basic weft densities having different sizes and one basic weft density selected from these basic weft densities and at least one weft density basic change amount added or subtracted The weft density pattern is set in the weft density instructing means, and the selected basic weft density is instructed from the weft density instructing means to the take-up driving means in a first weft density changing mode and at least one selected basic weft density. A second weft density is changed by adding or subtracting one weft density basic change amount, and the changed weft density is instructed from the weft density instructing means to the take-up driving means. And to change the weft density combined with the weft density change mode.

In the invention described in claim 4, the invention described in claim 2 and the invention described in claim 3 are combined. According to a fifth aspect of the invention, there is provided terry motion driving means for changing either one of the reed beating position of the reed and the cloth fell position of the woven fabric. At least two basic pile lengths having different sizes and at least one basic pile length selected from these basic pile lengths are targeted for a pile loom that changes a relative distance from the cloth fell to form a pile. Pile weave pattern storage means for storing a pile weave pattern set by a pile length obtained by adding or subtracting one pile length basic change amount, and the basic pile length and at least one pile length basic change amount for the basic pile length. Input means for inputting the pile length added or subtracted, and one unit necessary for pile formation based on the reading of the stored pile weave pattern A pile length provided with a terry amount calculating means for calculating a terry amount in each weft inserting cycle of the number of weft inserting cycles, and a terry motion control means for controlling the operation of the terry motion driving means based on the calculated terry amount information. Configured the changing device.

According to a sixth aspect of the present invention, a take-up drive means capable of changing the take-up speed of the woven cloth is provided, and the relative distance between the reed position of the reed and the cloth fell is changed to form a pile. For pile looms, at least two basic weft densities having different sizes and one basic weft density selected from these basic weft densities and at least one weft density basic change amount added or subtracted A weft density pattern storing means for storing the set weft density pattern; an input means for inputting the basic weft density and a weft density obtained by adding or subtracting at least one weft density basic change amount to the basic weft density; A take-up speed calculating means for calculating the take-up speed based on the reading of the stored weft density pattern; To constitute a weft density changes apparatus and a take-off control means for controlling the operation of the take-up drive means.

[0011]

The terry amount indicating means gives an instruction to control the terry motion driving means based on the reading of the set pile weave pattern. When the read pile weave pattern is in the first terry amount changing mode or the second terry amount changing mode, the pile length changes. The terry basic change amount is small compared to the difference between the respective basic terry amounts. If the first terry amount changing mode is selected, the pile length change is large, and if the second terry amount changing mode is selected, the pile length change is small.

According to the fifth aspect of the present invention, the pile weave pattern is set by the basic pile length and the basic change amount of the pile length, and the terry amount calculating means converts the pile length into the terry amount. The terry motion control means controls the operation of the terry motion drive means based on the converted terry amount.

The weft density instructing means gives an instruction to control the take-up driving means based on the reading of the set weft density pattern. When the read weft density pattern is the first weft density change mode or the second weft density change mode, the weft density changes. The basic weft density change amount is small compared to the difference between the basic weft densities. If the first weft density changing mode is selected, the weft density change is large, and if the second weft density changing mode is selected, the weft density change is small.

According to the invention described in claim 6, the take-up speed calculating means converts the weft density into the take-up speed. The take-up control means controls the operation of the take-up drive means based on the converted take-up speed.

A pile woven fabric having a change in weft density and a change in pile length is a woven fabric richer in change than a pile woven fabric having only a change in pile length.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
A description will be given based on FIG. FIG. 1 shows the side surface of the entire loom, and 1 is a warp beam for plain weaving. The ground warp T fed from the warp beam 1 for plain weave by the operation of a feed motor (not shown) is passed through the heddle 4 and the deformed reed 5 through the back roller 2 and the tension roller 3. The woven cloth W is wound around the cross roller 10 via the expansion bar 6, the surface roller 7, and the guide rollers 8 and 9.

A warp beam 11 for piles is supported above the warp beam 1 for plain weave. The pile warp yarn Tp sent out from the pile warp beam 11 by the operation of a sending motor (not shown) is passed through the heddle 4 and the deformed reed 5 through the tension roller 12.

A three-pronged intermediate lever 13 is provided at the center of the front and rear of the loom so as to be rotatable about a support shaft 13a.
A support lever 14 is arranged at the rear of the loom so as to be rotatable around a support shaft 14a, and a tension roller 12 is supported by the support lever 14. The support lever 14 and the first arm 13b of the intermediate lever 13 are connected by a rod 15. A support lever 16 is provided on the front part of the loom as a spindle 1.
The support lever 1 is arranged so as to be rotatable around 6a.
An expansion bar 6 is supported by 6. The support lever 16 and the second arm 13c of the intermediate lever 13 are connected by a rod 17. When the intermediate lever 13 rotates, the support levers 14 and 16 rotate in the same direction, and the tension roller 12 and the expansion bar 6 are displaced in the same direction by the same amount. By this displacement, the path of the pile warp threads Tp and the path of the woven cloth W are displaced, and the cloth cloth W ₁ of the woven cloth W is displaced.

Above the intermediate lever 13, a terry motion drive mechanism 18 serving as a terry motion drive means is arranged. The terry motion drive mechanism 18 will be described with reference to FIG.

A terry motion cam 20 consisting of a pair of cam plates and a worm wheel 21 are fixedly attached to the drive shaft 19. A servo motor 22 is arranged near the drive shaft 19, and its drive worm 22 a meshes with the worm wheel 21. The servo motor 22 rotates in one direction, and the terry motion cam 20 rotates in one direction.

A cam lever 23 is swingably supported by a support shaft 23a immediately above the drive shaft 19. The cam lever 23 is engaged with the terry motion cam 20 via cam followers 23b and 23c. With the rotation of the terry motion cam 20, the cam lever 23 is switchably arranged between a terry amount zero position shown by a chain line in FIG. 2 and a terry amount existing position shown by a solid line.

A servo motor 24, which constitutes a terry amount switching mechanism, is arranged above the cam lever 23. Ball screws 25A and 25B are rotatably arranged in parallel on both left and right sides of the cam lever 23, and a driven gear 25a is fixed to the upper ends thereof. The driven gear 25a meshes with the drive gear 24a of the servomotor 24, and the ball screws 25A and 25B rotate in the same direction and at the same speed by the operation of the servomotor 24.

A driven bar 26 is erected and supported between the ball screws 25A and 25B. The driven bar 26 is rotated by both ball screws 25A, 25B to move the ball screws 25A, 2B.
It is screwed up and down along 5B. A linear holding groove 26a is formed in the driven bar 26, and a slider 27 is fitted and supported in the holding groove 26a. A connecting pin 27a is fixed to the slider 27. An arc-shaped guide groove 23d is formed in the cam lever 23, and a connecting pin 27a is slidably fitted in the guide groove 23d. Therefore, as the driven bar 26 moves up and down, the connecting pin 27a slides up and down in the guide groove 23d.

A bifurcated displacement direction changing lever 28 is provided on the side of the cam lever 23 so as to be rotatable around a support shaft 28a. First arm 28 of displacement direction changing lever 28
The b and the connecting pin 27a are connected by a link 29. The second arm 28c of the displacement direction changing lever 28 and the third arm 13d of the intermediate lever 13 are connected by a rod 30. Therefore, the swing displacement of the cam lever 23 caused by the rotation of the terry motion cam 20 is transmitted through the displacement transmitting mechanism including the link 29, the displacement direction changing lever 28, the rod 30, the intermediate lever 13, the rod 17 and the support lever 16 to the expansion bar 6. Be transmitted to. Due to this displacement transmission, the expansion bar 6 is rotationally displaced about the support shaft 16a.

A temple device (not shown) for preventing the cloth W from shrinking in the width direction and a fell plate (not shown) for preventing the cloth W from moving downward near the cloth fell W ₁ are also displaced by the expansion bar 6. It is designed to follow. The swing displacement of the cam lever 23 is transmitted to the tension roller 12 via the intermediate lever 13, the rod 15 and the support lever 14.

A worm wheel 7a is fixed to the roller shaft of the surface roller 7 that receives the woven cloth W, and a drive worm 31a of a servo motor 31 is meshed with the worm wheel 7a. The surface roller 7 is rotated in a direction for pulling the woven fabric W by the operation of the servo motor 31. The cross roller 10 is operatively connected to the surface roller 7 via a torque limiter (not shown), and the cross roller 10 winds the woven fabric W at a constant tension.

The servomotors 22 and 24 are controlled by the terrymotion control computer C ₁ . The terry motion control computer C ₁ controls the operation of the servomotors 22 and 24 based on the pile weave pattern. The servo motor 31 is controlled by the weft density control computer C ₂ . The weft density control computer C ₂ controls the operation of the servomotor 31 based on the weft density pattern.

A pile weaving pattern device 32 and a weft density pattern device 33 are connected to a loom control computer C ₀ for controlling the entire loom. Loom control computer C
A rotary encoder 34 for detecting the machine rotation angle is connected to ₀ . The rotary encoder 34 outputs an origin signal to the loom control computer C ₀ every weft insertion cycle. The loom control computer C ₀ reads the pile weave pattern from the pile weave pattern device 32 in response to the input of the origin signal once every three weft insertion cycles, and transmits it to the terry motion control computer C ₁ . In addition, the loom control computer C ₀ reads the weft density from the weft density pattern device 33 in response to the input of the origin signal for each weft insertion cycle and sends it to the weft density control computer C ₂ .

The graphs of FIGS. 7 and 8 show the terry amount displacement and the cloth take-up speed of the three-weft towel structure. The horizontal axis represents the machine rotation angle, and the upper vertical axis represents the terry amount t, that is, the distance between the beating position and the cloth fell W ₁ . The lower vertical axis represents the cloth take-up speed V. The weft density is inversely related to the take-up speed V of the woven fabric. The higher the take-up speed V, the coarser the weft density, and the smaller the take-up speed V, the denser the weft density. The weft density d is represented by the number of wefts per unit length. The larger the d, the denser the weft density, and the smaller the d, the coarser the weft density.

The machine rotation angles θ ₀ , θ ₁ , θ ₂ , and θ ₃ represent beating times, and θ ₁ = θ ₂ = θ ₃ . Repulsion θ ₁
Then, the expansion bar 6 is located at the solid line position in FIG.
At the position indicated by the chain line. Expansion bar 6 in beating during theta ₂ is at the first fabric path displaced position shown by a chain line in solid line and 5 of Figure 3. Expansion bar 6 in beating during theta ₃ is in the second fabric path displaced position shown by a solid line in FIG.

9 (a) and 9 (b) and FIG. 10 (a),
(B) shows the pile formation state and the weft density state of the three weft towel structure. Wb is a border part. Y ₁ is a first pick weft beaten at θ ₁ during beating. The cam lever 23 when beating the first pick weft Y ₁
Is at the terry amount zero position shown by the chain line in FIG. 2, and the cloth fell W ₁ and the beating position P coincide with each other as shown by the chain line in FIG. Y
₂ is a first loose-pick weft yarn beaten at θ ₂ during beating, and Y ₃ is a second loose-pick weft yarn beaten at θ ₃ during beating. At the time of beating the wefts Y ₂ and Y ₃ during the loose pick, the cam lever 23 is in the terry amount-present position shown by the solid lines in FIGS. 2 and 5.

The pile weaving pattern device 32 includes an input device 3
5 is connected. Input device 35 is a pile weave pattern
Is input to the pile weave pattern device 32.
It Pile weave patterns consist of two basic patterns of different sizes.
Ile length L₁, L₂(L₁<L ₂), Invariable amount L₀,pie
Pile basic change amount (L + Δ
L) and pile length L for subtracting and changing pile length
Any one of the additional amount (L-ΔL) is required for pile formation.
This corresponds to every 3 weft insertion cycles. In the example of FIG.
Is curve E₁, E₂, E₃, E_Four, E_Five, E₆, E₇, E
₈The pile weave pattern shown by is (L₁, L₀, L₀, L +
ΔL, L + ΔL, L + ΔL, L + ΔL, L₀)
It In the example of FIG. 8, the curve F₁, F₂, F₃, F_Four, F_Five，
F₆, F ₇, F₈The pile weave pattern shown by is (L₁，
L₀, L₀, L₀, L₂, L₀, L₀, L-ΔL)
To be done.

The weft density pattern device 33 includes an input device 3
6 is connected. The input device 36 is a weft density pattern.
Is input to the weft density pattern device 33.
It The weft density pattern consists of two basic wefts of different sizes.
Thread density d₁, D₂(D₁> D ₂), Invariable amount d₀, Weft
Basic change amount of weft density (d +
Δd) and the weft density base for subtracting and changing the terry amount d
One weft insertion of any one of this change amount (d-Δd)
It corresponds to each rule. In the example of FIG. 7, a straight line G₁From
Straight line G₂The density change to (... d₀, D₁, D₀・ ・
・) Straight line G₂, G₃, G_Four, G_Five, G₆，
G₇The weft density pattern indicated by) is (... d₀, D + Δ
d, d + Δd, d + Δd, d + Δd, d-Δd)
Be done. In the example of FIG. 8, the straight line H₁From straight line H₂Density change to
Is (... d₀, D₂, D₀...). Straight line
H₂From straight line H₃The density change to (... d₀, D₁，
d ₀...). Straight line H₃, H_Four, H_FiveIndicated by
The weft density pattern is (... d₀, D + Δd, d + Δ
It is represented by d).

Based on the pile weave pattern read from the pile weave pattern device 32, the loom control computer C ₀ calculates the number of one weft insertion cycle required for pile formation, that is, the terry amount of each cycle of three weft insertion cycles. The calculated terry amount information is output to the terry motion control computer C ₁ for each input of the origin signal. That is, the loom control computer C ₀ is also a terry amount calculating means.

The terry motion control computer C ₁ calculates the operation amount of the servo motor 24, that is, the take-up speed, based on the terry amount information, and controls the operation of the servo motor 24 based on the calculation result. That is, the terry motion control computer C ₁ is a terry motion control. Then, the terry motion control computer C ₁ is connected to the loom control computer C ₀ and the pile weaving pattern device 3
Together with 2, form a terry amount indicating means. Servo motor 2
4, the servo motor 2 is changed when the cam lever 23 is at the terry amount zero position as shown in FIG.
4 is activated.

When the connecting pin 27a is at the solid line position in FIG. ₄ , the terry amount t ₁ represented by the curves E ₁ , E ₂ , E _{3 in} FIG. 7 and the curves F ₁ , F ₂ , F ₃ , F ₄ in FIG. Obtained,
When the connecting pin 27a is at the position indicated by the chain line in FIG. 4, the terry amount t ₂ represented by the curve E ₄ in FIG. 7 is obtained. Connecting pin 27
When a is at the solid line position in FIG. 5, the curves F ₅ , F in FIG.
₆ , the terry amount t ₃ represented by F ₇ is obtained, and the connecting pin 27a is obtained.
Is at the chain line position in FIG. 5, the terry amount t ₄ represented by the curve F ₈ in FIG. 8 is obtained.

The loom control computer C ₀ calculates the take-up speed of the next weft inserting cycle based on the weft density pattern read from the weft density pattern device 33, and the calculated take-up speed information is sent to the weft density control computer C ₂ . Output. That is, the loom control computer C ₀ is also a take-up speed calculation means. The weft density control computer C ₂ uses the servo motor 31 based on the take-up speed information.
Is calculated, and the rotation speed of the servo motor 31 is controlled based on the calculation result. That is, the weft density control computer C ₂ is a take-up control means. The weft density control computer C ₂ is the loom control computer C.
Together with ₀ and the weft density pattern device 33, weft density indicating means is configured.

9 (a) and 9 (b) and FIG. 10 (a),
The piles P ₁ , P ₂ and P ₃ shown in (b) are obtained from the pile weave pattern including the terry amount shown by the curves E ₁ , E ₂ and E ₃ in FIG. 7, that is, the pile length element. Pile P ₁ ,
The length of P ₂ and P ₃ is the basic pile length L ₁ . Figure 10
The pile P ₄ shown in (a) and (b) is obtained from the pile weave pattern containing the pile length element shown by the curve E ₄ in FIG.
The length of the pile P ₄ is (L ₁ + ΔL). Figure 10
The pile P ₅ shown in (b) is obtained from the pile weave pattern containing the pile length elements shown by curve E ₅ in FIG. Pile P
The length of ₅ is (L ₁ + 2ΔL).

9 (a) and 9 (b) and FIG. 10 (a),
The weft spacing S ₁ in the border portion Wb of the pile woven fabric W shown in (b) is obtained at the take-up speed indicated by the straight line G ₁ in FIG. The spacing S ₂ between the weft yarns at the border portion Wb and the pile forming portion is obtained at the take-up speed indicated by the straight line G ₂ in FIG. The spacing S ₃ in the pile forming portion shown in FIGS. 10A and 10B is obtained at the take-up speed indicated by the straight line G ₃ in FIG. The weft spacing S ₄ in the pile forming portion shown in FIG. 10B is obtained at the take-up speed indicated by the straight line G ₄ in FIG.

The change from the terry amount t ₁ shown by the curve E ₃ in FIG. 7 to the terry amount (t ₁ + Δt) shown by the curve E ₄ is the first terry amount changing mode. Similarly, the curves E ₄ , E ₅ ,
Each change in the terry amount indicated by E ₆ and E ₇ is the first terry amount changing mode. In the first terry amount change mode, the pile length change is small, and if the terry basic change amount Δt is made small, the pile length change approaches a stepless state. The change from the terry amount t ₁ shown by the curve F ₄ in FIG. 8 to the terry amount t ₃ shown by the curve F ₅ is the second terry amount changing mode. The second terry amount changing mode has a larger pile length change than the first terry amount changing mode.

If the first terry amount changing mode and the second terry amount changing mode are combined, it is possible to change the pile length in comparison with only the first terry amount changing mode or only the second terry amount changing mode. A pile woven fabric W rich in water is obtained.

The change from the take-up speed (in other words, the weft density d ₁ ) indicated by the straight line G ₂ in FIG. 7 to the take-up speed (in other words, the weft density (d ₁ + Δd)) indicated by the straight line G ₃ is the first.
This is the weft density changing mode. Similarly, the straight line G ₃ ,
Each change in weft density indicated by G ₄ , G ₅ , G ₆ , G ₇ is the first
This is the weft density changing mode. Basic change amount of weft density Δd
If is decreased, the weft density change approaches a stepless state. A change from the take-up speed (in other words, the weft density d ₂ ) indicated by the straight line G ₁ in FIG. 7 to the take-up speed (in other words, the weft density d ₁ ) indicated by the straight line G ₂ is the second weft density changing mode. The second weft density change mode has a larger change in weft density than the first weft density change mode.

If the first weft density changing mode and the second weft density changing mode are combined, the change is made in comparison with the change in the weft density only by the first weft density changing mode or only by the second weft density changing mode. A rich woven fabric W is obtained.

Further, the first terry amount changing mode, the second
If the terry amount changing mode, the first weft density changing mode, and the second weft density changing mode of FIG.
As shown in (c), it is possible to obtain a pile woven fabric W that is more varied. The pile woven fabric W in FIG. 10C corresponds to the change in the terry amount and the change in the weft density in FIG. 7.

The present invention is, of course, not limited to the above embodiment, and the pile weave pattern may be set based on the basic terry amount and the terry basic change amount itself.

An embodiment in which a weft density pattern is incorporated in the pile weave pattern is also possible. When the pile weave pattern is set by the basic pile length and the basic change amount of the pile length, the weft density can be changed for each unit of weft insertion cycle required for pile formation. When the pile weave pattern is set by the basic terry amount and the terry basic change amount, the weft density can be changed every weft inserting cycle.

Furthermore, the present invention can be applied to the beating position displacement system as disclosed in Japanese Patent Laid-Open No. 254029/1990.

[0048]

As described above in detail, according to the present invention, the pile is formed by combining the first terry amount changing mode, the second terry amount changing mode, the first weft density changing mode and the second weft density changing mode. Since the length and the weft density are changed, the pile woven cloth having various changes can be woven effectively.

[Brief description of drawings]

FIG. 1 is a side view of the entire loom.

FIG. 2 is an enlarged side view showing a terry motion mechanism in a loose pick state.

FIG. 3 is an enlarged side view showing an expansion bar in a loose pick state.

FIG. 4 is an enlarged side view showing a terry motion mechanism in which a cam lever is at a terry amount zero position.

FIG. 5 is an enlarged side view showing the terry motion mechanism in a loose pick state.

FIG. 6 is an enlarged side view showing the expansion bar in a loose pick state.

FIG. 7 is a graph showing changes in terry amount and changes in take-up speed.

FIG. 8 is a graph showing changes in the amount of terry and changes in the take-up speed.

9 (a) and 9 (b) are cross-sectional views showing a pile formation state and a change in weft density.

10 (a) and 10 (b) are cross-sectional views showing changes in pile length and changes in weft density. (C) is a schematic body side view showing a pile woven fabric in which the pile length and the weft density are changed.

[Explanation of symbols]

32 ... Pile weaving pattern device that serves as pile weave pattern storage means that constitutes terry amount instructing device; 33 ... Weft density pattern device that serves as weft density pattern storage device that constitutes weft density instructing device; 35 ... Input for inputting pile length device, 36 ... input device for inputting a weft density, C ₀ ... terry amount terry amount calculating means constituting the instruction means and the weft density instructing means a take-off speed calculation means constitute a loom control computer, C ₁ ... terry motion control Terry motion control computer serving as means, C ₂ ... take-up control computer serving as take-up control means, W ... pile woven fabric.

Claims (6)

[Claims] 1. A pile woven fabric in which the pile length is changed and the weft density is changed. 2. A terry motion drive means for changing either one of the reed position of the reed and the front position of the woven fabric,
In a pile loom in which the relative distance between the reed hitting position of the reed and the cloth fell is formed by the operation of the terry motion driving means to form a pile, at least two basic terry amounts having different sizes and these basic terry A pile weave pattern including a pile length element is set in the terry amount indicating means by a terry amount obtained by adding or subtracting at least one terry basic change amount to one basic terry amount selected from the amounts, and the selected basic terry amount is set. A terry amount changing mode for instructing the terry motion driving means from the terry amount instructing means, and changing the terry amount by adding or subtracting at least one terry basic changing amount to one selected basic terry amount. And a second terry amount changing mode in which the terry amount instructing means indicates the changed terry amount to the terry motion driving means. Pile length changing method in a pile loom to change the pile length to suit look. 3. A pile loom for forming a pile by changing the relative distance between the reed hitting position of the reed and the cloth cloth front, comprising a take-up drive means capable of changing the take-up speed of the cloth. At least two different basic weft densities and one basic weft density selected from these basic weft densities and a weft density obtained by adding or subtracting at least one weft density basic change amount to the weft density pattern as a weft density indicating means. A first weft density change mode in which the set and selected basic weft density is instructed from the weft density instructing means to the take-up driving means, and at least one weft density basic change amount is added to one selected basic weft density. Or subtract it to change the weft density,
A weft density changing method in a pile loom for changing the weft density in combination with a second weft density changing mode for instructing the changed weft density from the weft density instructing means to the take-up driving means. 4. Terry motion drive means for changing either one of the reed position of the reed and the cloth fell position and a take-up drive means for changing the take-up speed of the woven cloth,
In a pile loom in which the relative distance between the reed hitting position of the reed and the cloth fell is formed by the operation of the terry motion driving means to form a pile, at least two basic terry amounts having different sizes and these basic terry A pile weave pattern including a pile length element is set in the terry amount indicating means by a terry amount obtained by adding or subtracting at least one terry basic changing amount to one basic terry amount selected from the amounts, and at least two different sizes are set. One basic weft density, and one basic weft density selected from these basic weft densities and a weft density obtained by adding or subtracting at least one weft density basic change amount to set a weft density pattern in the weft density indicating means, A first terry amount changing mode for instructing the selected terry amount from the terry amount instructing means to the terry motion driving means. And the terry amount is changed by adding or subtracting at least one terry basic change amount to the selected one basic terry amount, and the changed terry amount is instructed from the terry amount instructing means to the terry motion driving means. A second terry amount changing mode; a first weft density changing mode for instructing the pick-up drive means of the selected basic weft density from the weft density instructing means; and at least one weft for one selected basic weft density. Change the weft density by adding or subtracting the basic density change amount,
A method for changing a pile length and a weft density in a pile loom for changing the pile length and the weft density by combining the changed weft density with a second weft density changing mode for instructing the weft density instructing means to the take-up driving means. 5. A terry motion drive means for changing either one of the reed position of the reed and the front position of the woven fabric,
In a pile loom in which the relative distance between the reed hitting position of the reed and the cloth fell is formed by the operation of the terry motion driving means to form a pile, at least two basic pile lengths having different sizes and these basic pile lengths are used. Pile weave pattern storage means for storing a pile weave pattern set by one basic pile length selected from the lengths and a pile length obtained by adding or subtracting at least one pile length basic change amount, and the basic pile length and the basic pile length. Input means for inputting a pile length obtained by adding or subtracting at least one pile length basic change amount to the pile length, and one unit of weft insertion cycle necessary for pile formation based on the reading of the stored pile weave pattern. Based on the calculated terry amount information, the terry amount calculation means for calculating the terry amount in each weft insertion cycle A pile length changing device in a pile loom comprising: a terry motion control means for controlling the operation of the terry motion drive means. 6. A pile loom that comprises a take-up drive means capable of changing a take-up speed of a woven cloth, and forms a pile by changing a relative distance between a beating position of the reed and a cloth fell of the cloth. A weft density pattern set by at least two different basic weft densities and a weft density obtained by adding or subtracting at least one weft density basic change amount to one basic weft density selected from these basic weft densities is stored. Weft density pattern storage means, input means for inputting the basic weft density and a weft density obtained by adding or subtracting at least one weft density basic change amount to the basic weft density, and for reading the stored weft density pattern. A take-up speed calculating means for calculating the take-up speed based on the take-up speed, A weft density changing device in a pile loom comprising a take-up control means for controlling.