CN102864552B

CN102864552B - Opening apparatus and control method thereof

Info

Publication number: CN102864552B
Application number: CN201210231044.6A
Authority: CN
Inventors: 杉山浩正; 原茂
Original assignee: Toyoda Automatic Loom Works Ltd
Current assignee: Toyota Industries Corp
Priority date: 2011-07-06
Filing date: 2012-07-05
Publication date: 2014-04-16
Anticipated expiration: 2032-07-05
Also published as: FR2977592A1; FR2977592B1; CN102864552A; JP5273218B2; JP2013014867A

Abstract

The present invention provides an opening apparatus and a control method thereof, wherein the opening apparatus comprises a plurality of heald frame drive systems, wherein each heald frame drive system is provided with an opening motor, an opening rod, a connection member and a heald frame, the opening rod is provided with a connection arm, the connection member is connected with the connection arm of the opening rod through a mounting position adjustment component, the heald frame is driven by the opening motor through the connection member and the opening rod, the connection arms of at least two opening rods of the heald frame drive systems are different in the aspect of angle position surrounding the swaying center of the opening rod, and the opening apparatus is characterized by comprising an aligning component, and the opening motor is allowed to rotate to move the opening rod to a position aligned to the connection arm of the opening rod.

Description

Shedding motion and control method thereof

Technical field

The present invention relates to a kind of shedding motion for loom, comprise a plurality of heald frame driving mechanisms, in each heald frame driving mechanisms, heald frame is by the rotary actuation of crank mechanism, and crank mechanism is driven by opening motor by connecting elements and opening bar.The invention still further relates to a kind of method of controlling described shedding motion.

Background technology

The open No.2010-248654 of Japanese Unexamined Patent Application discloses a kind of shedding motion, and it is configured to prevent the expansion along the installing space of loom horizontal direction.In this shedding motion, the opening bar of at least two heald frame driving mechanisms and the tie point between connecting elements are positioned at the diverse location place on the circumference of the circle centered by the swinging axle of opening bar.By such structure shedding motion, the direction setting that opening motor also can be intersected along the bearing of trend with connecting elements, thus prevent along the expansion of the installing space of loom lateral.

At the above-mentioned opening bar using in quoting the disclosed shedding motion of open text, only comprise three kinds of dissimilar opening bars.The hole place of connecting elements in the upper arm that is formed on opening bar is connected respectively to upper arm by connecting pin.The hole of three kinds of dissimilar opening bars is positioned at the diverse location on the circumference centered by swinging axle.The opening bar of these three kinds dissimilar opening bars as a plurality of heald frame driving mechanisms (being 16 heald frame driving mechanisms in the described open disclosed embodiment of text) is provided.

The open No.2002-129446 of Japanese Unexamined Patent Application discloses a kind of shedding motion, and its swing arm is as the opening bar of above-mentioned the first open No.2010-248654 quoting.In this second open text, connecting elements is connected respectively to the linking arm of swing arm via adapter.Each adapter by screws clamp to its corresponding linking arm.By changing adapter clip, be tightened to the position of linking arm, regulate the opening amount of heald frame.

If identical with the situation of the shedding motion of the first open text in the shedding motion of the second open text, linking arm different polytype swing arm aspect the angle position around swinging axle is set, can prevents along the expansion of the installing space of loom horizontal direction so.

If regulate the opening amount of the shedding motion of the swing arm only with a type by changing the installation site of the length direction along linking arm of each adapter, so all heald frames need to align to promote to regulate in smoothing position.Yet, if having all heald frames of the shedding motion of number of different types swing arm aligns in smoothing position, the linking arm of swing arm (opening bar) is shifted aspect the angle position around swinging axle so, and this makes to be difficult to regulate the installation site (or opening amount) of adapter.

Summary of the invention

The present invention is devoted to promote the adjusting of the opening amount of the heald frame in shedding motion, and the location of connecting elements that is wherein provided with polytype opening bar and is connected to the linking arm of opening bar can regulate.

According to an aspect of the present invention, provide a kind of shedding motion, it comprises a plurality of heald frame driving mechanisms, and each heald frame driving mechanisms has opening motor, opening bar, connecting elements and heald frame.Described opening bar has linking arm.Described connecting elements regulates parts to be connected to the linking arm of described opening bar by installation site.Heald frame is driven by opening motor by described connecting elements and opening bar.The linking arm of at least two opening bars of described heald frame driving mechanisms is different aspect the angle position of the oscillation center around described opening bar.Described shedding motion is characterised in that, this shedding motion comprises align unit, and it makes the linking arm aligned with each other aligned position of described opening motor rotation so that described opening bar is moved to described opening bar.

According to another aspect of the present invention, provide a kind of method of controlling shedding motion.Described shedding motion comprises a plurality of heald frame driving mechanisms.Each heald frame driving mechanisms has opening motor, opening bar, connecting elements and heald frame.Described opening bar has linking arm.Described connecting elements is connected to the linking arm of described opening bar, and the location of connecting elements can be regulated.Heald frame is driven by opening motor by described connecting elements and opening bar.The linking arm of at least two opening bars of described heald frame driving mechanisms is different aspect the angle position of the oscillation center around described opening bar.Described method is characterised in that, according to the opening amount data of the predefined heald frame of described heald frame driving mechanisms, calculate the step of target rotary angle position of the opening motor of described heald frame driving mechanisms, wherein, when described opening motor is placed on described target rotary angle position, described opening bar is placed on described linking arm aligned position aligned with each other; And determine whether described opening motor is placed on the step of described target rotary angle position.

Below in conjunction with accompanying drawing, by the description of example illustration principle of the present invention, it is clear that other aspects of the present invention and advantage will become.

Accompanying drawing explanation

Reference can be understood the present invention and object and advantage below in conjunction with accompanying drawing best to the description of currently preferred embodiment, wherein:

Fig. 1, for representing according to the front view of the shedding motion for loom of first embodiment of the invention, has wherein omitted a part for shedding motion;

Fig. 2 is the top view of a part of the shedding motion of presentation graphs 1;

The cutaway view that Fig. 3 cuts open for the line A-A along Fig. 2;

Fig. 4 A, Fig. 4 B and Fig. 4 C are the front view of three kinds of different openings bars of the shedding motion of presentation graphs 1;

Fig. 5 is the flow chart of control program that the shedding motion of Fig. 1 is shown; And

Fig. 6 is for representing according to the top view of a part for the shedding motion of second embodiment of the invention.

The specific embodiment

Below with reference to Fig. 1 to Fig. 5, the first embodiment of the present invention is described.The left and right sides of Fig. 1 and upper and lower sides correspond respectively to left and right sides and the upper and lower sides of the loom that is equipped with shedding motion of the present invention.With reference to represent Fig. 1 of shedding motion with front view, a plurality of opening bars 13 and a plurality of opening bar 14 are bearing between the relative right side frame 11 and left side frame 12 of loom swingably by

axle

15A and 15B respectively.The oscillating motion of each opening bar 13 is delivered to its corresponding opening bar 14 via transmission lever 16, so that opening bar 14 synchronously swings with opening bar 13.Connecting

rod

17 and 18 is connected respectively to opening

bar

13 and 14 in stand up position.In loom (not shown), being provided with a plurality of heald frame 19(is 16 heald frames in the present embodiment).Each heald frame 19 is by a pair of connecting

rod

17 and 18 supportings.The every pair of

opening bar

13 and 14 oscillating motion are converted to pumping of its corresponding heald frame 19 via a pair of connecting

rod

17 and 18.

As shown in Figure 1 to Figure 3, a plurality of

opening motor

20A, 20B, 20C, 20D, 20E, 20F the is arranged on position adjacent with right side frame 11.Because opening motor 20A-20F has identical structure, so will represent that opening motor 20A-20F only describes opening motor 20D and associated components thereof below.

Opening motor 20D comprises servo motor 201, be arranged on the rotary encoder 202 on one end of axle (not shown) of servo motor 201 and the gear-box 203 that wherein accommodates the train of reduction gears (not shown) of the other end that is connected to axle.Opening motor 20D also comprises the rotating shaft 204 that is connected to train of reduction gears.

As shown in Figure 3, crank arm 21 is fixed to each rotating shaft 204 in its one end, and rod connecting elements 22 is rotatably connected to the other end of crank arm 21 via crank-pin 23 in its one end.Rotating shaft 204, crank arm 21 and connecting elements 22 cooperations form crank mechanism.Opening motor 20D and above-mentioned crank mechanism coordinate to form the reciprocating actuator that drives heald frame 19.Opening motor 20D, connecting elements 22,

opening bar

13,14, transmission lever 16, connecting

rod

17,18 and heald frame 19 cooperations form heald frame driving mechanisms.

Each opening bar 13 is respectively any one in the three kinds of different openings bars 131,132 and 133 as shown in Fig. 4 A, Fig. 4 B and Fig. 4 C.The vertical arm 26 that opening bar 131 shown in Fig. 4 A has upwardly extending linking arm 241, is connected to the horizontal arm 25 of connecting rod 17 and is connected to transmission lever 16.Connecting rod 17 is connected to horizontal arm 25 via pin 27, and transmission lever 16 is connected to vertical arm 26 via pin 28.

Connecting elements 22 is via regulating the adapter 29 of parts to be connected to linking arm 241 as installation site.Adapter 29 is clamped to linking arm 241 by screw 30.Along with screw 30 unclamps, adapter 29 can change along the length direction of linking arm 241 to the clamped position (installation site) of linking arm 241.Connecting elements 22 is connected to adapter 29 via connecting pin 31.

The vertical arm 26 that opening bar 132 shown in Fig. 4 B has upwardly extending linking arm 242, is connected to the horizontal arm 25 of connecting rod 17 and is connected to transmission lever 16.The vertical arm 26 that opening bar 133 shown in Fig. 4 C has upwardly extending linking arm 243, is connected to the horizontal arm 25 of connecting rod 17 and is connected to transmission lever 16.

Opening bar 131,132 and 133 horizontal arm 25 are identical aspect shape and size, and the vertical arm 26 of opening bar 131,132 and 133 is also identical aspect shape and size.Horizontal arm 25 around axle 15A in opening bar 131,132 and 133 is identical with the relative angular position between vertical arm 26.

The width H3 of the width H2 of the width H1 of the linking arm 241 of opening bar 131, the linking arm 242 of opening bar 132 and the linking arm 243 of opening bar 133 is identical.As from relatively the recognizing of Fig. 4 A, Fig. 4 B, Fig. 4 C, the linking arm 241,242,243 around axle 15A in opening bar 131,132 and 133 is different from the relative angular position between horizontal arm 25.

As shown in Figure 1, when the place ahead when counting from loom, eight

opening motor

20A, 20B and 20C are corresponding to eight heald frames 19.In the present embodiment, three opening motor 20A overlap each other and are stacked in right side frame 11 sides of loom, and five opening motor 20B and 20C overlap on the outside of three opening motor 20A being stacked on poststack each other.Particularly, in five opening motor 20B and 20C of heap poststack, when counting from bottom, the first to the 3rd opening motor is opening motor 20B, and when counting from top, the first and second opening motors are opening motor 20C.

As shown in Figure 2,

opening motor

20D, 20E and 20F are arranged in right side frame 11 sides of loom, so that paired with

opening motor

20A, 20B and 20C respectively.When front portion when counting from loom, three connecting elementss 22 shown in Fig. 1 and opening bar 13 thereof correspond respectively to three heald frames 19.Can notice clear for accompanying drawing, the not shown connecting elements for opening motor 20B and 20C.

The connecting elements 22 that is connected to the rotating shaft 204 of opening motor 20A has roughly the same length.For being connected to the connecting elements (not shown) of rotating shaft 204 of opening motor 20B and the connecting elements (not shown) that is connected to the rotating shaft 204 of opening motor 20C, be also the same.The connecting elements that is connected to the rotating shaft 204 of

opening motor

20D, 20E and 20F has respectively the length roughly the same with the connecting elements of rotating shaft 204 that is connected to opening

motor

20A, 20B and 20C.Namely, the connecting elements 22 that is connected to rotating shaft 204 only has three kinds of different length types.

Opening bar 131,132 shown in Fig. 4 A, Fig. 4 B and Fig. 4 C and 133 linking arm 241,242,243 form in the oscillation center around Zhou15A center 151(or opening bar 131,132 and 133) angle position aspect different.Although connecting elements 22 only has three kinds of different length types, but opening motor 20A-20F can be configured to two rows that arrange along the horizontal direction of loom in right side frame 11 sides of loom, and each has along the sandwich construction of the vertical direction of loom.Therefore prevented along the expansion of the installing space of the horizontal direction of loom.

As shown in Figure 1,

opening motor

20A, 20B and 20C are controlled by controller 32, and controller 32 produces with the signal of data input part part 33, operational order switch 34, starting switch 35 and rotary encoder 202 for each motor and is connected.Data input part part 33 is used for inputting the opening amount data of each heald frame 19, and for the input data setting of each heald frame 19 at controller 32.

Flow chart shown in Fig. 5 shows controls the operation of opening motor 20A-20F with the program of alignment linking arm 241,242,243.

Basis is described to the operation of the first embodiment below by the control program shown in the flow chart of Fig. 5.At step S1, controller 32 determines that whether loom is in stopping.If loom is in stopping, controller 32 determines at step S2 whether operational order switch 34 is connected.Under state at loom in stopping, the reed (not shown) of loom near its impact position in stopping.Then, heald frame 19 they uppermost position and the centre position between its lowermost position (or smoothing position) near stop.Then opening bar 131,132 and 133 is positioned at respectively position S1, S2 and S3 as shown in Fig. 4 A to Fig. 4 C.

If be no at step S2, or not connection of operational order switch 34, controller 32 determines at step S3 whether starting switch 35 is connected so.If for being or starting switch 35 connections, program turns back to step S1 so at step S3.

If for being or 34 disconnections of operational order switch, controller 32 calculates respectively the target rotary angle position of opening motor 20A-20F according to the opening amount data of the heald frame 19 that pre-enters and set at step S4 so at step S2.Carry out this calculating and be because for the identical motor anglec of rotation, according to the opening amount of heald frame 19, opening bar 131,132 and 133 pendulum angle are different.Can notice, term " target rotary angle position " represents the rotary angle position of the motor 20A-20F when opening bar 131,132 and 133 is placed on aligned position, at aligned position linking arm 241,242,243 when the axial direction along axle 15A is observed, is positioned at roughly the same position.Step S4 is as calculate the control step of the target rotary angle position of opening motor 20A-20F according to the opening amount data that pre-enter and set of each heald frame 19.

At step S5, controller 32 generation command signals are carried out operation aperture motor 20A-20F so that alignment linking arm 241,242,243.

At step S6, the controller 32 of data that then receives the current rotary angle position of motor 20A-20F from their rotary encoder 202 determines that whether current rotary angle position is corresponding to target rotary angle position.If be that no or current rotary angle position does not correspond to target rotary angle position at step S6, program turns back to step S5 so.

If step S6 for be or rotary angle position corresponding to target rotary angle position, controller 32 makes opening motor 20A-20F stop their running at step S7 so.Step S6 is as determining whether opening motor 20A-20F is placed on the control step of their target rotary angle position.

At opening motor 20A-20F, at step S7 under the state in stopping, opening bar 131,132 and 133 is placed on its aligned position S that the double dot dash line in Fig. 4 A-Fig. 4 C represents.

Controller 32, data input part part 33 and rotary encoder 202 cooperations form align unit, and it makes opening motor 20A-20F rotation opening bar 131,132 and 133 is moved to linking arm 241,242,243 its aligned position S aligned with each other.

At opening bar 131,132 and 133, be placed under the state of its aligned position S, linking arm 241,242,243 is placed on the roughly the same rotary angle position around axle 15A.Therefore, can easily carry out the adjusting (or adapter 29 is with respect to adjusting of the clamped position of linking arm 241,242,243) of the opening amount of each heald frame 19.Carry out the adjusting of opening amount, so that the distance between the end of linking arm 241,242,243 and the upper end of adapter 29 becomes respectively desired length L1, L2 and L3.

Above-mentioned the first embodiment has following advantageous effects.When carrying out the adjusting of opening amount, three kinds of dissimilar opening bars 131,132 and 133 are angularly located by align unit.Therefore, linking arm 241,242,243 is placed on the roughly the same angle position around axle 15A.Therefore, can easily carry out connecting elements 22 along the location of the length direction of linking arm 241,242,243, the namely location of adapter 29.

Below with reference to Fig. 6, the second embodiment of the present invention is described.In the description of the second embodiment, same reference numbers is illustrated in same parts or the element using in the description of the first embodiment, and will omit these parts of the second embodiment or the detailed description of element.The anterior position place of opening bar 13 is provided with optical transmitting set 36 up front, and in the end face opening bar 13 after, be provided with optical receiver 37 striding across the position that heald frame 19 is relative with optical transmitting set 36.From the light of optical transmitting set 36 transmittings, be directed to optical receiver 37.If do not have opening bar 13 to be arranged between optical transmitting set 36 and optical receiver 37, from the light of optical transmitting set 36 transmittings, by optical receiver 37, received so.Optical transmitting set 36 and optical receiver 37 are orientated as, and when opening bar 131,132 and 133 is all placed on its aligned position S, the light path T between them does not intersect with any linking arm 241,242,243.

When operational order switch 34 is connected, controller 32 makes opening motor 20A-20F running, makes thus linking arm 241-243 alignment.When opening bar 131,132 and 133 is placed on its aligned position S(with reference to figure 4) time, from the light of optical transmitting set 36 transmittings, by optical receiver 37, being received, optical receiver 37 transmits the electrical signal to controller 32.The controller 32 that receives this signal makes opening motor 20A-20F stop their running.

Optical transmitting set 36 and optical receiver 37 coordinate the position detector that forms the position of detecting linking arm 241-243.The second embodiment provides the effect roughly the same with the first embodiment.

The present invention can with as illustrational variety of way practice below.

A plurality of proximal sensors can provide respectively for the linking arm 241-243 of opening bar 131-133 the position at proximal sensor output detection signal when opening bar 131-133 is placed on its aligned position S.When all proximal sensor output detection signals, opening bar 131-133 is placed on its aligned position S.Controller 32 stops the operation for linking arm of motor according to the reception of signal.

In the first embodiment, the vertical position of each heald frame 19 and the opening angle of warp thread can be used as opening amount data.

In the first embodiment, the vertical position of heald frame 19 and desired length L1, L2 and L3 can be used as opening amount data.

Can use any suitable reciprocating actuator except crank mechanism to drive heald frame.

The quantity of heald frame can not be as 16 in embodiment are shown.

According to the present invention, do not need to operate all opening motor 20A-20F, but can operate by this way motor, the opening bar of any two types can move, neat for the opening pole pair of the type with except first mention two types.

Claims

1. a shedding motion, comprising:

A plurality of heald frame driving mechanisms (20A, 20B, 20C, 20D, 20E, 20F, 22,13,14,16,17,18,19), each has

Opening motor (20A-20F),

Have linking arm (241,242,243) opening bar (13,131,132,133),

By installation site regulate parts (29) be connected to described opening bar (13,131-133) linking arm (241-243) connecting elements (22) and

The heald frame (19) being driven by described opening motor (20A-20F) by described connecting elements (22) and described opening bar (13,131-133),

The linking arm (241-243) of at least two opening bars of wherein said heald frame driving mechanisms (20A-20F, 22,13,14,16-19) (13,131-133) is different aspect the angle position of the oscillation center (151) around described opening bar (13,131-133)

It is characterized in that,

Described shedding motion comprises align unit (32,33,202), it makes described opening motor (20A-20F) rotation, described opening bar (13,131-133) is moved to linking arm (241-243) aligned position (S) aligned with each other of described opening bar (13,131-133).

2. shedding motion according to claim 1, it is characterized in that, described align unit (32, 33, 202) comprise controller (32) and position detector (36, 37), wherein said controller (32) is controlled the running of described opening motor (20A-20F) to align described linking arm (241-243), wherein said position detector (36, 37) detect the position of described linking arm (241-243), wherein said controller (32) basis is by described position detector (36, 37) position data detecting is controlled the running of described opening motor (20A-20F).

3. shedding motion according to claim 1, it is characterized in that, described align unit (32, 33, 202) comprise controller (32) and data input part part (33), wherein said controller (32) is controlled the running of described opening motor (20A-20F) to align described linking arm (241-243), wherein said data input part part (33) is used for inputting described heald frame driving mechanisms (20A-20F, 22, 13, 14, the opening amount data of heald frame 16-19) (19) and by input data setting in described controller (32), wherein said controller (32) is according to the opening amount data of the described heald frame (19) by described data input part part (33) input and setting, calculate respectively the target rotary angle position of described opening motor (20A-20F).

4. shedding motion according to claim 3, is characterized in that, described opening amount data have the position data of described heald frame (19) and the opening angle data of warp thread.

5. shedding motion according to claim 3, is characterized in that, described opening amount data have the data of the position data of described heald frame (19) and the link position of described connecting elements (22) and described linking arm (241-243).

6. according to the shedding motion described in claim 1 to 5 any one, it is characterized in that, the connecting elements (22) of at least two described heald frame driving mechanisms (20A-20F, 22,13,14,16-19) has roughly the same length.

7. control a method for shedding motion, described shedding motion comprises a plurality of heald frame driving mechanisms (20A, 20B, 20C, 20D, 20E, 20F, 22,13,14,16,17,18,19), and each has

Opening motor (20A-20F),

Have linking arm (241,242,243) opening bar (13,131,132,133),

Connecting elements (22), its be connected to described opening bar (13,131-133) linking arm (241-243) in case the position of described connecting elements (22) be can regulate and

It is characterized in that following steps:

According to the predefined opening amount data of the heald frame (19) of described heald frame driving mechanisms (20A-20F, 22,13,14,16-19), calculate the step of target rotary angle position of the opening motor (20A-20F) of described heald frame driving mechanisms (20A-20F, 22,13,14,16-19), wherein when described opening motor (20A-20F) is placed on described target rotary angle position, described opening bar (13,131-133) is placed on described linking arm (241-243) aligned position (S) aligned with each other; And

Determine whether described opening motor (20A-20F) is placed on the step of described target rotary angle position.