JPH0636034Y2 - Moving distance measuring device in spreading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a spreading device which rotatably receives a piece of cloth and feeds the cloth from the piece of cloth to extend it on a table.

2. Description of the Related Art As this type of spreading device that has been known in the past, a piece of cloth is pivotally supported on the upper side of the main body of the device, and by moving the main body of the device in the front-back direction, the material of the piece of cloth is unrolled from the front end of the main body of the device and spread. It is known that the process is repeated. In this conventional spreading device, the device body reciprocates back and forth on the table. However, in order to perform the reciprocating movement on the table for a predetermined stroke corresponding to the spreading length, the device main body is provided with a side portion. Is equipped with an encoder. Gears are linked to the encoder, and the gears mesh with grooves of equal pitch on the upper surface of a linear rack arranged along the moving direction of the apparatus main body on the table, and the rack of the rack is moved when the main apparatus moves. The rotation of the gear that meshes with the groove and is rotated is transmitted to the encoder to read and measure the moving distance of the apparatus main body.

Problems to be Solved by the Invention In such a configuration, since the groove of the rack is directed upward, dust such as fiber waste enters the groove,
When the amount is gradually increased and the gear is pressed, the depth of the groove becomes small, the gear does not rotate accurately, and the encoder cannot be provided with a normal rotation speed. As a result, the encoder causes a step out, and there is a problem that the moving distance of the main body of the apparatus cannot be accurately measured.

The present invention solves such a problem, and an object of the present invention is to enable the encoder to accurately read the movement distance of the apparatus body without causing step out.

Means for Solving the Problems In order to solve this problem, the present invention is configured such that a shaft of a piece of cloth is pivotally supported above a device body that can be reciprocally moved back and forth on a table and above the device body. A fabric spreading device constructed so as to feed out the fabric of the fabric to be pivoted from the front of the device, wherein linear racks are formed at equal pitches on the side of the table along the moving direction of the device body. The encoder is arranged so that the groove faces downward, and the side of the apparatus body is provided with an encoder that is interlocked with the gear that meshes with the groove of the rack, and the encoder that rotates while meshing with the groove of the rack when the apparatus body moves. The rotation is transmitted to the encoder, and the moving distance of the apparatus main body is read and measured.

Action With this configuration, the linear rack for encoder operation is arranged so that the groove faces downward, so dust is unlikely to accumulate in the groove, and the gear meshes accurately with the groove It is possible to give a regular number of rotations and to accurately read the moving distance of the main body of the apparatus without causing the encoder to run out of step as in the conventional case, and to perform the retraction operation without malfunction.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1 to FIG. 7, reference numeral 1 denotes a device main body having a traveling wheel 3 capable of reciprocating forward and backward on a table 2, and on the upper side of the device main body nest 1, the device main body 1 is moved in the left-right width direction. A possible mount 4 is provided. A pair of bearings for receiving the shaft 6 of the cloth 5 on the left and right sides near the rear end of the gantry 4.
7 and 7 are provided, and a pair of link devices 8 and 8 are provided on the mount 4 so as to be capable of reciprocating rotation between the table 2 and the bearings 7 and 7 inside the bearings 7 and 7. There is. The cloth 5 is placed on the table 2 so as to be parallel to the rear end of the apparatus body 1 while being wound around the shaft 6 by a certain amount, and both ends of the shaft 6 of the cloth 5 are connected to the link devices 8 and 8. Tip claw 9,9
Then, the cloth 5 is lifted on the gantry 4 by the rotation of the link devices 8 and 8, and both ends of the shaft 6 are placed on the bearings 7 and 7. By the way, the link device 8 is a link 10 that is rotated by a motor (not shown).
And a link 11 having one end pivotally supported at the tip of the lolink 10 and the claw portion 9 at the other end, that is, a double link mechanism, and the link 10 projects rearward of the gantry 4. By rotating in the direction, the link 11 hangs down, the both ends of the shaft 6 can be hooked on the claw portion 9 at the tip of the link 11, and by rotating the link 10 upward of the gantry 4, The angle between both links 10, 11 is reduced so that the link 11 bends, and the link 10 abuts on the receiving member 10a provided on the link 10 at a certain angle so that both the links 10, 11 are held at a certain angle. Rotate integrally, and the claw portion 9 at the tip of the link 11 moves upward at the portion of the bearing portion 7 and moves between above and below the bearing portion 7 to move the both ends of the shaft 6 to the bearing portion. It can be placed on 7. When lowering the shaft 6 from the bearing portion 7, the shaft 6 is moved onto the table 2 by performing an operation reverse to that when the link devices 8 and 8 are placed, and the shaft 6 is moved from the link devices 8 and 8 onto the table 2. You can drop it.
In addition, one bearing portion 7 is provided with a gear 12 that meshes with a gear 6a formed at one end of the shaft 6.
By rotating 12 by a motor (not shown), the shaft 6 is rotated so that the cloth 5a of the cloth 5 can be fed out at a constant speed when the cloth is spread.

Next, L-shaped guide members 13, 13 are provided on both left and right sides of the gantry 4 from the front end portion to the rear end portion. For details, the upright portion 13a of each guide member 13 is the pedestal 4
The portion 13b, which is located at the front end of the gantry 4 and is oriented substantially horizontally, has a length extending from the front end to the rear end of the gantry 4. Further, the height position of the upper end of the standing portion 13a is formed to be substantially the same as the height of the piece 5 received by the bearing portions 7,7. Both ends of 14 are fitted in the grooves 15 and 15 of the guide members 13 and 13, and the chain 16 provided in the longitudinal direction of each groove 15 is engaged with the sprockets 17 at both ends to move in the longitudinal direction of the groove 15 while rotating. A horizontal bridging rod configured so that the rod 14 is held at the upper ends of the rising portions 13a, 13a of the guide members 13, 13 during operation. Further, rollers 19 which are fitted into guide groove portions 18 formed inward of the chain 16 in the groove 15 are provided on the ends of the rod 14 beyond the sprockets 17 at both ends. You can move smoothly. Further, in order to maintain the state in which the rod 14 is positioned at the upper ends of the rising portions 13a, 13a of the guide members 13, 13, the upper end of the rising portion 13a of one guide member 13 is engaged with a recess on one end side of the rod 14. A removable claw 20 is provided. This claw 20 is a handle 2 provided outside the upper end of the standing portion 13a.
1 and is connected to the guide groove 18 by a spring 22.
Is urged in a direction projecting inward, and the lower end of the claw 20 is tapered so that it can be easily engaged with the concave portion on the one end side of the rod 14.

Next, at the front end of the gantry 4, rollers 23, 24 for sandwiching the cloth 5a of the cloth 5 hanging from the rod 14 and hanging down.
Is provided. One roller 23 is configured so as to be pivotally supported by a mount 24 and driven by a motor (not shown), and the other roller 24 is a frame body 25 pivotally supported by the mount 4.
It is configured to be pivotally supported by and to be switched by the rotation of the frame body 25 into a state in which it abuts against one roller 23 and a state in which it is separated from one roller 23. Reference numeral 26 is a handle portion formed on the frame body 25, and is operated by holding the handle portion 26 when the other roller 24 is brought into and out of contact with the one roller 23.

Next, the cloth 5a of the cloth 5 is attached to the lower end of the front end of the apparatus body 1.
Is provided with a guide plate 27 and a guide rod 28 for guiding the sheet to the table 2. Further, the front end portion of the apparatus main body 1 cuts the cloth 5a coming out between the guide plate 27 and the guide rod 28 in the width direction. A cutter 29 is provided so as to be movable in the width direction of the apparatus body 1.

Next, at the front end of the apparatus body 1, the cloth 5a guided from the rollers 23, 24 between the guide plate 27 and the guide rod 28.
A windshield film 30 made of cloth is provided so as to be located close to the rear side. The windshield film 30 is positioned such that one end thereof is close to the upper end of the guide plate 27, and is disposed upward from the one end at the front end portion of the apparatus body 1. It should be noted that FIG. 5 shows the mounting portion of the windshield 30 in an enlarged manner.
Is hung on a plurality of horizontal rods 31 and is pulled by a weight 32 on the other end side. This is because when the fabrics 5a stretched out on the table 2 are piled up and the one end of the windshield 30 is raised so as not to hit the fabric 5a as the height of the fabric 5a increases as will be described later. This is to prevent looseness. Thus the windshield 30
The guide plate 27, the guide rod 28, and the cutting portion by the cutter 29 are also raised at the same time with the rise of the.

Further, the apparatus main body 1 reciprocates back and forth on the table 2, but in order to perform the reciprocating movement on the table 2 by a predetermined stroke corresponding to the extension length, a side portion of the apparatus main body 1 has a Encoder as shown in FIGS. 6 and 7
33 are provided. This encoder 33 is Table 2
It is attached to the apparatus main body 1 by a suspending metal fitting 34 or the like so as to be located below the upper surface of the table 2 on one side of the table 2, and the longitudinal direction of the table 2 [the moving direction of the apparatus main body 1 is attached to one side of the table 2. ] A groove 37 of a rubber-made linear rack 35 stretched along the above] meshes with a gear 37 interlocked with the encoder 33. For more details,
The grooves 36 of the linear rack 35 are formed at equal pitches in the longitudinal direction, and the grooves 36 face downward and mesh with the gear 37 from above. Further, between the gear 37 and the encoder 33, a pulley 38 and an encoder 33 coaxial with the gear 37 are provided.
And a pulley 39 on the same axis is interposed, and a belt 40 is hung between the pulleys 38 and 39. With this configuration, when the device body 1 reciprocates on the table 2,
The gear 37 meshing with the groove 36 of the rack 35 moves while rotating, and the rotation of the gear 37 is transmitted to the encoder 33, and the moving distance of the device main body 1 is read by the rotation speed of the encoder 33, and the encoder 33 is set in advance. When the rotation speed is reached, the movement of the apparatus body 1 in one direction is stopped and the movement is switched to the opposite direction.

By the way, the moving speed of the device body 1, the rotation speed of the shaft 6 of the cloth 5, and the rotation speed of the roller 23 are set so that the cloth 5a of the cloth 5 can be smoothly delivered onto the table 2, that is, the device body. The feeding speed of the dough 5a is adjusted so as not to be delayed with respect to the moving speed of 1.

In the above configuration, the case where the cloth 5a of the cloth 5 is cut on the table 2 while being cut into a predetermined size and the spreading work is performed will be described. First, when the cloth 5 placed on the table 2 is placed on the mount 4, By rotating the link devices 8 and 8, both ends of the shaft 6 of the cloth 5 on the table 2 are picked up to lift the cloth 5 on the gantry 4, and both ends of the shaft 6 are set to the bearing portion.
Put on 7,7. Next, the claw 20 is pulled by the handle 21 to disengage from the rod 14, and the rod 14 is moved along the guide members 13 and 13 while being rotated toward the rear end side of the guide members 13 and 13. In this state, the cloth from the cloth 5
5a is extended, and at the same time, the roller 24 is separated from the roller 23, and while the rod 14 is being rotated, it is moved to the upper end of the standing portion 13a and engaged with the pawl 20. As a result, the rod 14 is maintained in the state of being positioned at the upper end of the standing portion 13a. The cloth 5a of the unwound material 5 is put on the rod 14, and the tip of the cloth 5a hangs down forward,
The tip of the cloth 5a can be positioned between the rollers 23 and 24. Next, the roller 24 is moved to the roller 23 side, and the tip of the cloth 5a is sandwiched between the rollers 23 and 24. After that, the shaft 6 is rotated to rotate the cloth 5, and the roller 23 is rotated so that the tip of the cloth 5a comes to the position of the guide plate 27 and the guide rod 28, that is, the starting position of the spreading operation. set. In the above preparatory work, in particular, the work of hanging the cloth 5a on the rod 14 can be performed laterally of the device. That is, the rod 14 is positioned behind the cloth 5, the material 5a is fed from the cloth 5 onto the table 2, and then the rod 14 is moved to the front end portions of the guide members 13 and 13 (the upper ends of the standing portions 13a). By this, the cloth 5a can be hung on the rod 14. The cloth between the cloth 5 and the rod 14 wound around the shaft 6 when the start of the spreading operation is completed.
5a is slack so that a desired length of unrolled material can be obtained even if the unwinding speed is slightly delayed due to an error between the unwinding speed of the cloth 5a and the moving speed of the apparatus body 1 during unrolling.

In this state, the spreading operation can be started, the apparatus body 1 is moved on the table 2 by the required stroke in accordance with the spreading length, and then, when the apparatus body 1 returns backward by the required stroke, The dough 5a is fed out from No. 5, and when the device body 1 returns to the required stroke, the cutter 29
By moving the in the width direction of the apparatus main body 1, one sheet can be spread. By repeating this operation, the spread cloth 5a is piled up on the table 2. The windshield film 30 located near the rear side of the cloth 5a below the rollers 23, 24 is used for moving the cloth 5a when the apparatus body 1 is moved back and forth.
To prevent it from being pulled upward due to the effect of wind from the front or the rear. Specifically, when the device body 1 moves forward, even if the fabric 5a below the rollers 23, 24 is pushed backward by the wind pressure, the fabric 5a hits the windshield film 30 and the tip of the fabric 5a is lifted. Further, the wind is prevented from being caught in the rear side of the cloth 5a below the rollers 23 and 24 when the apparatus main body 1 moves rearward by arranging the windshield 30 close to the cloth 5a. , It is more fabric
5a is prevented from being lifted. Lola like this
Since the windshield film 30 is positioned close to the rear side of the cloth 5a below 23 and 24, the cloth 5a can be spread at a predetermined position on the table 2.

Further, the rack 35 stretched on one side of the table 2 along the longitudinal direction of the table 2 for operating the encoder 33 has the groove 36 facing downward,
It is difficult for dirt such as fiber waste to collect in 36, and gear 37 is in groove 36.
It is possible to give a regular rotation speed to the encoder 33 by accurately engaging with. As a result, the encoder 33 can carry out the reciprocating work without malfunction without causing a step out as in the conventional case.

As described above, according to the present invention, the linear rack for the operation of the encoder provided so that the reciprocating stroke of the apparatus main body on the table becomes a predetermined amount has the groove facing downward. Since it is arranged, dust is unlikely to accumulate in the groove, the gear will mesh accurately in the groove, it is possible to give the encoder a regular rotation speed and the encoder does not lose step like in the past ,
It is possible to accurately read the moving distance of the main body of the apparatus and to carry out the spreading operation without malfunction.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an overall perspective view of a spreading device, FIG. 2 is a sectional view of the same side, FIG. 3 is a detailed view of a link device portion, and FIG. 4 is a guide. Sectional drawing which shows the engaging part of a member and a rod, FIG. 5 is a schematic side view of a windshield film attachment part, FIG. 6 is an enlarged front view of an encoder attachment part, and FIG. 7 is an enlarged side view of the same. 1 ... Device body, 2 ... Table, 4 ... Stand, 5 ... Fabric, 5a
… Fabric, 6… Shaft, 7… Bearing, 33… Encoder, 35…
Linear racks, 36 ... Grooves, 37 ... Gears, 38, 39 ... Pulleys, 4
0 ... belt.

Claims (1)

[Scope of utility model registration request] 1. A structure for pivotally supporting a shaft of a cloth article above a main body of the apparatus, which is capable of reciprocating back and forth on a table, and for feeding out fabric of the cloth of the pivotal cloth pivoted above the main body of the apparatus. In the spreading device configured as described above, linear racks are arranged on a side portion of the table along a moving direction of the device body so that grooves formed at equal pitches face downward, and An encoder that is linked to the gear that meshes with the groove of the rack is provided on the side part, and the rotation of the gear that meshes with the groove of the rack and rotates when the device body moves is transmitted to the encoder, and the moving distance of the device body is read and measured. A moving distance measuring device in a spreading device configured to.