JPH0867414A - Spreading machine - Google Patents

Abstract

PURPOSE: To enable a folded spreading, one-way spreading, and two-way spreading without providing the cutter on a spreading machine main body at the high position by installing a guide mechanism on the underside of a cutter, designing so that a substrate guide surface of the guide mechanism is deformed in the folded spreading and a folded part is formed in cooperation with a catcher for holding. CONSTITUTION: A spreading machine main body 2 is moved forward on a spreading table 1, and a substrate 4 delivered from an original cloth 3 and suspended from a delivery part 9 is loaded on an already spread laminated body by the swing motion of a swing bar of a guide mechanism 14. When the spreading machine main body 2 is moved, a catcher raising cam installed on the guide mechanism 14 acts on a catcher 5 so as to push up the holding bar of the catcher 5. Also, as the spreading machine main body 2 is moved forward, the end part of the substrate 4 is pushed into the underside of the holding bar of the catcher 5. Then the folded part of the substrate 4 is held by the catcher 5 through the subsequent returning operation of the spreading machine main body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spreading machine for automatically feeding a piece of cloth onto a cloth spreading table and cutting it into a predetermined length for stacking or folding.

[0002]

2. Description of the Related Art Generally, in the spreading operation carried out by a spreading machine, a folding and folding method in which a raw fabric is fed out for a predetermined length and folded to form a required number of laminates and then the raw fabric is cut by a cutter. There is a unidirectional or bidirectional stretching in which the original fabric is cut every time it is fed out for a predetermined length and a required number of sheets are stacked to form a laminate.

Japanese Utility Model Publication No. 58-44125 discloses a device for performing folding back. In this publication, the original fabric is successively fed out from the main body of the reciprocating machine that travels back and forth on the reciprocating table, and the end portion of the folded-back portion of the unrolled original fabric is placed on the pitcher and the reciprocating table provided on the main body of the reversing machine. The original fabric is folded back by sandwiching it with the catcher that has been kept on standby, and the folded back fabric is also sandwiched by the catcher.

Further, Japanese Patent Application Laid-Open No. 2-28455 discloses a device for performing unidirectional or bidirectional spreading. In the device of this gazette, a means for directing the original fabric is provided just below a horizontal cutter arranged on the feeding side of the retraction machine body, and the reciprocating machine is reciprocally movable in the traveling direction. When the rolled fabric is cut with a cutter, the fabric spreading machine main body is retracted in a state where the cut end portion of the raw fabric cut is guided by the directing means to align the material ends at the end of the spreading. Further, before the raw fabric cut by the cutter and hung from the main body of the fabric spreading machine is fed onto the fabric spreading table, the orientation means is operated to guide the cut end of the raw fabric in the direction opposite to the spreading direction. The edges of the fabric at the start of spreading are aligned.

In the spreading machine of Japanese Utility Model Publication No. 58-44125, the folding and spreading can be performed, but the unidirectional or bidirectional spreading while the cutter is operating cannot be performed. Further, any of the reversing machines of JP-A-2-28455 has a single function, such as the opposite.

Japanese Unexamined Utility Model Publication No. 1-118959 discloses a spreading machine that solves the above problems. In the spreading machine of this publication, a cutter is provided at a relatively high position in the payout path of the spreading machine main body in order to perform one-way spreading and fold-back spreading with the same spreading machine, and the cutter and the spreading table. The movable bar on the side close to the cutter between, the push bar and the separating bar on the main body of the spreading machine near the spreading table,
Also, a catcher is provided on the spreading table. In this spreading machine, the pushing bar and the catcher cooperate to align the cut ends at the leading end of the raw fabric, and the movable bar and the separating bar cooperate to align the cut portions at the rear end of the raw fabric. Then, the cutter and the movable bar are operated to extend in one direction, and the cutter and the movable bar are not operated to perform folded back.

However, in the spreading machine of Japanese Utility Model Laid-Open No. 1-118959, since the cutter is arranged at a relatively high position of the main body of the spreading machine, the rear end of the original placed on the spreading table is Since it is cut at a high position above the spreading table, a movable bar and a separating bar are required to align the cut ends of the original sheet that drop after cutting with wrinkles removed. Further, since the cutter is mounted at a high position, the hanging distance of the original fabric becomes long, and there is a risk that it may be affected by the wind when the original fabric is spread.

[0008]

SUMMARY OF THE INVENTION The present invention has been invented in view of the above-mentioned problems, and it does not require a cutter to be installed at a high position in the main body of a reciprocating machine, and it can be folded back and extended in one direction or / and in both directions. The purpose is to provide a reversing machine capable of countering.

[0009]

In order to solve the above-mentioned problems, the present invention is a spreader having a cutter in the lower part of the main body of the spreader that reciprocates on a spread table. A dough guide mechanism including a pair of dough guide surfaces before and after sandwiching the dough feeding path and a displacement means for displacing the position of the dough guide surface is provided, and the dough guide mechanism cooperates with a catcher at the time of folding and unfolding. The pitcher function that forms a folded-back portion on the dough fed out from the dough and the cutting start end of the dough that is fed out when the fabric is stretched by cutting the fabric every time the fabric is stretched a predetermined length is opposite to the rolling direction. The dough guide surface is displaced by the displacing means so as to have a guide function of guiding in the direction.

Further, the guide mechanism is mounted on a lifter which is movable up and down with respect to the main body of the spreading machine together with the cutter, and the guide mechanism and its position are arranged in accordance with the stacking height of the cloth spread on the spreading table. I tried to raise.

The pair of fabric guide surfaces provided on the guide mechanism are formed on a swing bar pivotally supported on the support bracket, and the support bracket is rotationally displaced by a displacement means to cause the swing. The guide surface of the bar is displaced.

Further, the rocking bar is provided with air blowing means for allowing the cloth to smoothly pass through the guide surface.

Further, there is provided a spreader having a lifter having a cutter mounted on one side of a main body of the spreader which reciprocates on a spreader table, and a feeding path of the cloth is sandwiched below the cutter on the lifter. A cloth guide mechanism including a pair of cloth guide surfaces composed of swing bars and a displacement means for rotationally displacing the support bracket pivotally supporting the cloth guide surface is provided at the front and rear of the cloth guide surface, and the guide mechanism is provided on the spreading table. It has a mechanism that acts on the arranged catcher to lift the fabric gripping bar, and when the fabric is folded and spread, it works in cooperation with the catcher to form a folded portion on the fabric fed from the original fabric, and the fabric has a predetermined length. The cutter is actuated every time the fabric is spread, and the cutting start end portion of the material fed out during the spreading is guided in a direction opposite to the spreading direction. The ground guide surface is to be displaced by the displacement means.

[0014]

Operation: A guide mechanism is provided below the cutter provided at the lower part of the main body of the reciprocating machine that reciprocates on the retraction table, and the cloth guide surface of the guide mechanism is displaced by the displacing means at the time of folding and refolding. It cooperates with the catcher to act to form a folded portion. The fabric having the folded-back portion is sandwiched between the catcher and the spreading table as in the conventional case. In addition, at the time of spreading that cuts by operating the cutter every time the fabric is spread a predetermined length,
The material is guided by the material guide surface of the material guide mechanism so that the cutting start end of the material after cutting is fed out in the direction opposite to the extending direction.

Further, since the cloth guide mechanism is mounted on the lifter together with the cutter, the cloth guide mechanism is raised in accordance with the stacking thickness of the cloth placed on the spreading table, so that the spreading cloth is always spread under good conditions. Is done.

Further, when the starting end of the dough fed out at the time of starting the spreading of the fabric or after the operation of the cutter stays on the guide surface, the air is jetted by the air jetting means provided on the rocking bar and the dough is stretched. It is placed on the table.

[0017]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic structure of a retraction machine according to an embodiment of the present invention. The spreader is provided with a spreader table 1 installed horizontally and a spreader main body 2 capable of reciprocating along the longitudinal direction of the spreader table 1. On the spreading table 1, catchers 5, 5 for gripping both ends of the cloth 4 unwound from the original fabric 3 are arranged in front of and behind the unfolded cloth 4, respectively.

Wheels 7 are provided on the traveling carriage 6 below the main body 2 of the fabric spreading machine, and the traveling carriage 6 is driven by rotating the wheels 7 by a drive motor (not shown). Although not shown, the traveling locus of the wheels 7 of the traveling carriage 6 is located outside the side frame of the catcher 5 arranged on the retraction table 1, and the traveling carriage 6 climbs over the catcher when the lifter 15 is raised to the highest position. Can pass through. On the traveling carriage 6, a defusing unit 8 and a feeding unit 9 are provided. The traveling carriage 6 has a substantially rectangular parallelepiped box shape, and the spreading roller 1 is provided on the lower side wall on one end side in the traveling direction.
0, a cloth pressing plate 11 and a cutter table 12 are provided. The cutter table 12 includes a horizontal cutter 13 and a cutter guide (not shown) that captures the cloth and guides it to the cutting portion when the cutter is operated.

A fabric guide mechanism 14 is provided just below the cutter table 12. The guide mechanism 14 will be described later. The spreading roller 10, the material pressing plate 11, the cutter table 12, and the guide mechanism 14 are mounted on the lifter 15, and are moved up and down from the surface of the spreading table 1 as the lifter 15 is moved up and down. The position of the lifter 15 is raised according to the change in the stacking height of the stretched cloth.

FIG. 2 shows the structure of the catcher 5 shown in FIG. 1 which is set on both ends of the cloth. The upper side is a plan view and the lower side is a side view. Since the catchers 5 and 5 have the same structure, only one of them will be described. The catcher 5 is mounted on the spreading table 1 and includes a left and right L-shaped side frames 30 and a support stay 31 that is installed between the side frames 30 and connects the side frames to each other. Left and right arms 32 that are supported so that they can be raised and lowered and a grip bar 3 attached to the ends of the arms
3 and a moving unit. Left and right arm 32
Are connected by a shaft 34, and a pinion gear 35 is pivotally supported on the arm 32 on both outer sides of the connecting portion.

The pinion gear 35 meshes with a rack (not shown) formed on one roller receiver 37 of the roller receivers 36, 37 provided on the inner wall side of the side plate 30. Further, the rollers 38, 39 mounted on the arm 32 are
The catcher moving part is guided by 37 and is supported so that it can move up and down. The vertical movement of the moving portion is performed by engaging another roller 40 mounted on the arm 32 with a cam surface provided on a guide mechanism 14 described later.
A grip portion 41 for pressing and gripping the stretched cloth is provided on the lower surface of the tip of the grip bar 33. The grip portion 41 is made of a material suitable for gripping clothing or other cloth.

Next, the structure of the guide mechanism 14 of this embodiment will be described with reference to FIGS. 3, 4, and 5. FIG. 3 shows the left side surface of the retraction machine body 2. FIG. 4 shows the line XX shown in FIG.
FIG. 3 is a vertical cross-sectional view of the tip portion of the retraction machine main body 2 viewed from above. Further, FIG. 5 shows the guide mechanism 14 viewed in the direction of the arrow from the line Y-Y shown in FIG.

A lifter support bracket 51 for supporting the lifter 15 is mounted on the frame 50 of the rebel machine main body 2. A linear guide including a stator 52 and a mover 53 is provided on the lifter support bracket 51, and a lifter mounting bracket 54 is fixed on the mover 53. A rack 55 is vertically formed on one end of the mounting bracket 54. The rack 55 meshes with a pinion gear 56 that is rotationally driven by a lifter drive motor 102 attached to the retraction machine body 2, and the drive motor 10
2 allows the mounting bracket 54 to move up and down on the linear guide. On the mounting bracket 54 of the lifter 15, the cutter unit 12, 13, the spreading roller 10, the cloth pressing plate 11, the guide mechanism 14, etc. are mounted, including the mounting portion at the lower end of the windshield shield 57. A guide mechanism mounting bracket 58, which is substantially E-shaped in plan view, is fixed on the mounting bracket 54 below the cutter device. Catcher lifting cams 59, 60 are provided on the guide mechanism mounting bracket 58 at both ends in the traveling direction of the main body 2 of the spreading machine.
1, 62 are pivotally supported on the bracket, and the cams rotate by contacting the raising cam surfaces 63 and 64, which are inclined surfaces, on one end side of each cam and the bracket 58 on the other end side with the pivotal support portion interposed therebetween. Stopper portions 65 and 66 for preventing the above are formed.

The raising cam surfaces 63, 64 formed on the tip side of the catcher raising cams 59, 60 act on the roll 40 provided on the arm 32 of the catcher 5 by the movement of the retraction machine main body 2 to raise the gripping bar 33. . Lifting cam surface 6
The gripping bar 33 that has risen along 3, 64 raises the lifting cam surface 6
It drops from the uppermost position of 3, 64 and grips the fabric under it. A bearing portion 69 of the shaft portion 68 of the rocking bar support bracket 67 is formed on the inner wall of the central portion of the guide mechanism mounting bracket 58, and an air type rotary actuator 70 as a displacement means is formed on the outer wall of the central portion of the guide mechanism mounting bracket 58. The compressed air supplied from the compressor mounted on the main body of the retraction machine is attached to the rotary drive shaft 71 of the actuator 70 by opening and closing the solenoid valve.
Is rotationally driven to rotationally displace the shaft portion 68 connected to the rotational drive shaft 71, whereby the swing bar support bracket 67 can be rotationally displaced. The rotary actuator used here has a rotation angle of 90 degrees, and is driven 45 degrees forward or reverse from the origin based on a control signal from the CPU, with the origin being a horizontal position where the left and right rocking bars have the same height.

Although there is an effect that the guide mechanism itself can be made compact by using the above-mentioned air type actuator, another drive source may be used instead of the air type actuator. For example, the rotation angle of the shaft of the rocking bar support bracket 67 can be set to an arbitrary angle by using a step motor, and the rotation angle may be adjusted according to the material of the material to be stretched.

Swing bars 73, 74 are installed between the swing bar support brackets 67 provided on both sides of the frame of the retraction machine main body 2 as guide surfaces of the material, and are rotatably supported by mounting pins 71, 72. There is. The rocking bar is made of stainless steel, aluminum, or the like, and the surface is slipped.

Stopper pins 75 and 76 are mounted on the rocking bar supporting bracket 67, and the rocking bars 73 and 74 are placed in a horizontal state where the rocking bar supporting bracket 67 is not rotationally displaced as shown in FIG. The stopper pin 75,
When the rocking bars 73 and 74 are brought into contact with the rocking bar 76, the rocking bars 73 and 74 are prevented from hanging down vertically due to the weight of the bars themselves, and the rocking bars 73 and 74 droop in the inverted C shape with the tips of the rocking bars being close to each other. . In this way, the stopper pins 75 and 76 limit the range of rotation of the swing bars 73 and 74.

FIG. 6 shows the displacement of the rocking bar when it is rotated in the direction of rotation of the clock hands. Take this position. The mounting pins 71, 72 and the swing bars 73, 74 of the swing bar have a hollow structure, and the air ducts 79, 80 serving as a compressed air supply path connect the pins 71, 72 and the swing bars 73, 74. It is formed to penetrate. Spouting nozzles 81 and 82 having openings in a direction facing the material fed from the air ducts 79 and 80 are formed at predetermined intervals over substantially the entire length of the swing bars 73 and 74 in the longitudinal direction. Compressed air can be blown to the fabric so that the fabric to be fed can smoothly pass through the guide surface. Jetting of compressed air is performed by opening and closing a valve provided between the compressor and the air duct. Compressed air is passed through a pipe (not shown) from a compressor mounted on the main body of the spreading machine from both sides of the frame of the main body of the spreading machine and the swing bar and the rotary actuator 70.
Is supplied to.

The compressed air may be jetted at any time during the spreading of the material, but normally, at the start of spreading during the replacement of the raw material, or during one-way spreading or bidirectional spreading while the cutter is operating. This is performed when the starting edge of the material after being cut by the cutter passes between the swing bars 73 and 74. In the case of a particularly hard cloth, the cloth may be fed in a looped state due to the curl of the original fabric, and therefore one side of the air jetting means may be actuated in the direction in which the curl is eliminated. .

The material 4 to be spread is set as a roll-shaped raw fabric 3 in the unwinding portion 8 and supplied. In the unraveling section 8, the original 3 is unraveled. The disentangled cloth 4 is hung down in the discharge area 16 in a U-shape and discharged.

The unfolded cloth 4 is supplied from the feeding section 9 between the spreading roller 10 and the cloth pressing plate 11. The cloth pressing plate 11 is used to hold the cloth 4 on the spreading roller 10 when cutting the cloth 4 drawn on the spreading table 1 by a predetermined length. The cutting is performed by a horizontal rotary cutter 13 provided on the cutter table 12.

FIG. 7 is a diagram showing the electrical configuration of the hardware of the rebel machine. In the figure, 90 is the main bus, and 9
Reference numeral 1 denotes a CPU, and a general-purpose processor manages the entire fabric-spreading machine. A ROM 92 stores a program for controlling the reversing machine. A RAM 93 stores various parameters necessary for controlling the spread machine and data for the spread machine created by CAD or the like.

Next, regarding the I / O system of the spreading machine, 94 is a sensor provided in the U-shaped discharging area 16 to detect the discharging amount of the cloth. An encoder 95 detects the amount of movement of the traveling carriage 6 on the retraction table 1. A disk drive 96 reads the data of the floppy disk 97 or the like which stores the data for the spreading machine created by a CAD device or the like. The read data is stored in the RAM 93. Reference numeral 98 denotes an operation panel, which can be used to modify or create data by using a numeric keypad or the like, and the input data is stored in the RAM 93. The disk drive 96 and the operation panel 98 are arranged on the main body 1 of the retraction machine. Reference numeral 99 is a traveling motor, 100 is a delivery motor, and 101 is an unwinding motor, and the feeding speed of the cloth is synchronously controlled with respect to the moving speed of the traveling carriage 6 detected by the encoder 95, and the discharge is detected by the sensor 94. The speed of the unwinding motor 101 is controlled in accordance with the amount, and the cloth is loosened and wrinkled, or the cloth is unrolled without tension. Reference numeral 102 is a lifter drive motor, 103 is a cutter blade rotation motor, 104 is a cutter base movement motor, 105 is a spreading roller drive motor, and 106 is a material pressing plate drive motor. The lifter drive motor 102 is driven and controlled according to the thickness of the stretched cloth and the number of stacked layers. The lifter 15 is moved up and down in the ROM 9
2 is performed by referring to the data of the counter for counting the number of sheets and the thickness data of the cloth in the RAM 93 that stores the spreading parameter, but instead, the laminated thickness of the cloth on the spreading table 1 is measured and measured. The height of the lifter 15 may be controlled based on the result. The rotation speed of the cutter blade, the moving distance of the cutter table, etc. are also referred to by referring to the spreading parameter and the spreading machine data. Reference numeral 107 denotes an air type rotary actuator attached to the guide mechanism 14 for displacing the swing bar. Reference numeral 108 is an air jetting means 108 provided on the rocking bar.

Next, the operation of the retraction machine configured as described above will be described. FIG. 8 and FIG.
0 and FIG. 11 show the catcher 5 and the guide mechanism 14 in the vicinity of the traveling reversal portion of the main body 2 of the spreading machine for two-way spreading in which the cutter is operated to cut the material at the end of the forward and backward movements of the main body 2. The operation of each is shown.

In FIG. 8-A, the cloth 4 fed from the material 3 is placed on the uppermost surface of the already stretched laminated body while the main body 2 of the spreading machine moves to the left side of the drawing on the spreading table 1. Shows where it is placed. In this state, the cloth 4 hanging from the feeding portion passes between the swing bars 73 and 74 of the guide mechanism 14 and is placed on the laminated body. At this time, the guide mechanism 14 drives the actuator 70 to take a state in which the swing bar support bracket 67 is rotated by 45 degrees from the horizontal position in the direction of rotation of the clockwise hand, and the surface of the cloth 4 is at the tip of the swing bar 74. It comes out on the spreading table 1 while contacting. On the spreading table 1, the end portion of the stack of the cloth 4 that has already been spread is sandwiched between the grip bar 33 of the catcher 5 and the spreading table 1.

Since there is no large gap between the tip of the rocking bar 74 and the uppermost portion of the cloth stretched on the spreading table, the cloth 4 which is unrolled is more properly attached to the tip of the rocking bar 74. Since it is guided and placed, it is possible to prevent wrinkles from occurring. Further, since the other swing bar 73 covers the front of the cloth that is hung vertically down and is fed out, it functions as a windshield and realizes the spreading of the cloth under favorable conditions.

FIG. 8B shows a state in which the retraction machine main body 2 further advances to the left. The tip of the raising cam surface 63 of the catcher raising cam 59 attached to the guide mechanism 14 is the arm of the catcher 5. Roller 40 provided on 32
To push the grip bar 33 up to the center of the inclined surface.

FIG. 8C shows a state in which the cloth 4 is unfolded from the above state to the vicinity of the folded back portion. At this time, the moving speed of the spreading machine main body 2 is low and the roller 40 of the catcher 5 is The lifting cam 59 is raised to the highest position. At this time, as shown in the drawing, the swing bar 73 of the guide mechanism 14 is swung upward by the grip bar 33 of the catcher 5 as the retraction machine body 2 advances. At this time, the dough 4 is also pushed backward, but the feeding control of the dough 4 is performed based on the positional relationship between the catcher 5 and the retraction machine body 2 so that the dough 4 is not stretched when pushed. Be seen. It is not always necessary to set the feeding amount at this time, but it is preferable to set it because the degree of freedom of the cloth itself is small, especially in the case of a hard cloth. In this example, the setting of the feeding amount is stored in the RAM 93, and the feeding amount is determined by the size of the catcher, the retraction speed, and the like.

FIG. 9-A following FIG. 8-C shows a state in which the cloth 4 being rolled out is fed to the folded-back portion, and the roller 40 of the catcher 5 has the raising cam surface 63.
The gripping bar 33 falls off on the swing bar 74 located below and holds the cloth 4 between the gripping portions 41 of the gripping bar 33 to form a folded portion (pitcher function). At this time, the rebel machine main body 2 is stopped.

In FIG. 9-B, the main body of the spreading machine starts to move to the right, the swing bar 74 slips through the cloth 4, and the folded portion of the cloth 4 is sandwiched between the gripping portion 41 and the spreading table 1. It After that, the actuator 70 is driven when the retraction machine main body 2 is traveling in the right direction, the swing bar support bracket 67 is rotationally displaced 90 degrees in the rotation direction of the counterclockwise hand, and the cloth 4 is moved in the left direction under the same conditions as when traveling. Spreading is performed. The operation at the right end folded portion is performed in the same manner as when the left end folded portion is formed by the cooperation of the rocking bar 73 and the catcher arranged on the right side. As a result, a laminate having an orderly folded portion is formed.

In the above-described folding and spreading, the rocking bar support bracket 67 is rotated 45 degrees clockwise from the horizontal state or 45 degrees in the opposite direction depending on the traveling direction of the spreading machine main body 2 to perform the spreading. However, the swing bar support bracket 67 may be rotationally displaced only when the folded-back portions at the left and right ends are formed, and may be extended in the other positions while maintaining the horizontal state.

FIG. 10 and FIG. 11 show the operation in the two-way spreading in which the cutter is operated every time at the end of the laminate to cut the cloth. FIG. 10-A shows the spreading table 1
It shows that the cloth spreading machine main body 2 is moving on the left side of the drawing, and the cloth 4 fed from the material 3 is already placed on the uppermost surface of the cloth spreading table 1 above-mentioned spread cloth. . At this time, the guide mechanism 14 is in the same state as in FIG. 8-A.

FIG. 10-B shows a state in which the main body 2 of the retraction machine further advances to the left and is stopped. Roller 4 of catcher 5
0 is lifted by the action of the lifting cam surface 63, so that the gripping portion 4
1 rises away from the laminate. At this time, the guide mechanism 14
Each swing bar of the actuator 7 has the same height.
When 0 is driven, the swing bar support bracket 67 is rotationally displaced counterclockwise. In this state, the cutter operates to cut the cloth 4 hanging from the main body 2 of the spreading machine. Immediately after this, the swing bar support bracket 67 is rotationally displaced to the state of FIG. 10-C.

In FIG. 10-C, as the main body 2 of the spreading machine moves to the left again again, the cloth 4 is drawn out and the cutting start end of the cloth 4 hanging down contacts the surface of the swing bar 74 and is opposite to the spreading direction. Is guided to the end of the laminated body on the side (guide function). The roller 40 of the catcher 5 is guided by the raising cam surface 63 and reaches the highest position.

In FIG. 11-A, the main body 2 of the spreading machine further moves to the left, moves to a position where the cut end of the material 4 to be fed out coincides with the end of the laminate, and stops. At this time, catcher 5
The roller 40 is disengaged from the raising cam surface 63, and the grip bar 35 falls, and the cloth 4 is sandwiched between the swing bar 74 and the grip portion 41 of the grip bar 33.

After the dough is cut, the dough is swung by the bar 74.
The compressed air is ejected to the cloth from the air nozzle by operating the compressed air ejecting means provided on the rocking bar 74 until it is gripped by the grip bar 33 and the grip bar 33. If there is a material that stays in the compressed air, the compressed air prevents the material from staying and acts so that the material can smoothly pass over the guide surface.

FIG. 11-B shows a state in which the main body 2 of the spreading machine starts to move to the right, the swing bar 74 slips through the cloth 4, and the cloth end is sandwiched between the grip portion 41 and the spreading table 1. Indicates. The same operation as described above is performed on the end portion (not shown) of the stack on the right side of the drawing to form a stack having cut edges aligned.

When the cloth is cut in one direction or both directions in which the cutter is operated each time a predetermined length of cloth is unfolded, the catcher is not necessarily used and the guide mechanism 14 is not necessarily used. It is also possible to perform by performing only the provided guide function. The pitcher function does not have to be exerted particularly when the cloth with less slippage is spread or when high-speed spreading is not required. Also,
Even in the case of folding back and folding, if the number of laminated sheets is small, it is not necessary to use a catcher.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. Instead of the rocking bar, it has a guide surface that can hold the fabric by cooperating with a catcher and can guide the tip of the fabric at the start of spreading and the cutting start end after cutting the fabric in the direction opposite to the spreading direction. If so, it can be substituted, and the movement of the guide surface at that time is not limited to rocking, and may be horizontal movement or the like.

Further, the catchers shown in the above-mentioned embodiments are constructed separately from the main body of the retraction machine, and they are placed on the table of the retraction machine and extended in a relative positional relationship with the main body of the retraction machine. The cam installed on the main body of the reaction machine raises and lowers it.However, by electrically recognizing the positional relationship with the main body of the retraction machine, the catcher is provided with driving means to move the gripping bar up and down, or on the main body of the retraction machine. Needless to say, the present invention can be implemented without departing from the scope of the present invention, such as a configuration in which a catcher is integrally provided with the guide mechanism and the guide mechanism cooperates.

[0051]

EFFECTS OF THE INVENTION Since the present invention has the above-described structure, it is possible to perform unidirectional spreading and / or bidirectional spreading in which the cutter is operated for each folding and spreading by a single spreading machine. Without the need to raise the position of the cutter on the fabric spreading machine, the fabric guide mechanism can be installed below the cutter, so the drooping distance of the fabric can be shortened and the wind during spreading will not be adversely affected. .

Further, since the guide mechanism is mounted on the lifter together with the cutter, the guide mechanism can be raised and spread according to the stack thickness of the cloth.

Further, since the guide surfaces are provided on the pair of rocking bars and the guide surfaces are displaced by the rotational displacement of the supporting brackets of the rocking bars, only one drive unit is required, and the structure of the guide mechanism is correspondingly simple. Can be converted.

Further, the fabric can smoothly pass through the guide surface by the air jetting by the air jetting means provided on the swing bar.

Further, since the cloth guide mechanism is provided with a mechanism that acts on the catcher to lift the cloth gripping bar, the present invention can be implemented using a catcher having a simple structure.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a retraction machine of the present invention.

FIG. 2 is a diagram showing a plan view and a side view of a catcher.

FIG. 3 is a left side view of the retraction machine body.

FIG. 4 is a vertical cross-sectional view showing the structure of the tip end portion of the retraction machine main body as seen from the direction of the arrow of line XX in FIG.

5 is a diagram showing the structure of a guide mechanism as viewed in the direction of the arrow along line Y-Y in FIG.

FIG. 6 is a view showing a state in which a swing bar support bracket is rotationally displaced by 45 degrees and a structure of a jetting means.

FIG. 7 is a diagram showing an electrical configuration of hardware of the retraction machine.

FIG. 8 is a diagram showing an operation at an end portion of the laminated body in the folded and folded web.

FIG. 9 is a diagram continued from FIG. 8 and showing the operation at the end portion of the laminated body in the folded and stretched web.

FIG. 10 is a diagram showing an operation at an end portion of the laminated body in the two-way spreading.

FIG. 11 is a diagram continued from FIG. 10 and showing the operation at the end portion of the laminated body in the two-way spreading.

[Explanation of symbols]

 1 Spreading Table 2 Spreading Machine Main Body 3 Raw Fabric 4 Fabric 5 Catcher 6 Traveling Cart 8 Unraveling Section 9 Feeding Section 12 Cutter Platform 14 Guide Mechanism 15 Lifter

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location D06H 7/00

Claims (5)

[Claims] 1. A spreader having a cutter at a lower part of a main body of a spreader that reciprocates on a spread table, and a pair of cloth guide surfaces are provided below the cutter with a feeding path of the cloth sandwiched therebetween. A pitcher function of providing a cloth guide mechanism including a displacement means for displacing the position of the cloth guide surface, and forming a folded-back portion on the cloth fed from the original cloth in cooperation with a catcher at the time of folding and spreading. The cloth guide surface is provided with a guide function for guiding the cutting start end of the cloth fed out during the cloth cutting by operating the cutter every time the cloth is spread by a predetermined length in the opposite direction to the spreading direction. Distracting machine, wherein the displacing means is used to displace. 2. The guide mechanism is mounted on a lifter that can move up and down with respect to a main body of a spreading machine together with a cutter, and the guide mechanism and the position thereof together with the cutter according to the stacking height of the cloth spread on the spreading table. The spreading machine according to claim 1, wherein the spreading machine is raised. 3. A pair of fabric guide surfaces provided on the guide mechanism are formed on a swing bar pivotally supported on a support bracket, and the support bracket is rotationally displaced by a displacement means to cause the swing. The spreading machine according to claim 2, wherein the guide surface of the bar is displaced. 4. The spreading machine according to claim 3, wherein the rocking bar is provided with air jetting means for allowing the cloth to pass through the guide surface smoothly. 5. A spreader having a lifter having a cutter mounted on one side of a spreader main body which reciprocates on a spreader table, and a dough feeding path is sandwiched below the cutter on the lifter. A cloth guide mechanism including a pair of cloth guide surfaces composed of swing bars and a displacement means for rotationally displacing the support bracket pivotally supporting the cloth guide surface is provided at the front and rear of the cloth guide surface, and the guide mechanism is provided on the spreading table. It has a mechanism that acts on the arranged catcher to lift the fabric gripping bar, and when the fabric is folded and spread, it works in cooperation with the catcher to form a folded portion on the fabric fed from the original fabric, and the fabric has a predetermined length. Each time the fabric is stretched, the cutter is operated to cut the fabric. A spreading machine characterized in that the id surface is displaced by a displacement means.