JP2021031073A - Fastening force stabilization structure of binding tape in binding device - Google Patents

Abstract

To stabilize a fastening force of a binding tape when using the binding tape to be used in a binding device.SOLUTION: A bracket internally mounting a support shaft is attached to a frame supporting a tape reel wound by a binding tape, a fixed arm to which a rotation roller is attached and a rotation arm capable of rotating about the support shaft are attached to the support shaft, first and second stoppers that turn ON and OFF before a first roller of the fixed arm and after a last roller of a movable arm are attached. When binding, the first stopper is operated and the second stopper is released to disconnect a clutch to allow the rotation arm to move upward. After binding, the first stopper is released and the second stopper is operated to connect the clutch and drive a motor, and to return the rotation arm to an original origin position.SELECTED DRAWING: Figure 4

Description

The present invention relates to a structure for stabilizing the tightening force of a binding tape in a binding device that binds a bound object in which various rod-shaped objects such as dried noodles, incense sticks, and wires are accumulated by a transport bucket and bound with a binding tape. is there.

There is the following patent 1 as a binding device of this kind. In this method, the bound object is placed on a transport bucket and transported intermittently, and when it reaches a specific stop position (this is the binding position), both ends of the bound object are grasped by a chuck and rotated. In the meantime, the reel-shaped binding tape stored in the tape case erected above the binding position is pulled out and wound around the outer circumference of the bound object to bind. Then, after binding, the tape was cut and transported again in the transport bucket. That is, the objects to be bound were bound while being conveyed.

Japanese Unexamined Patent Publication No. 2016-216053

By the way, at the time of binding, it is necessary to bind the object to be bound while appropriately tightening the bound object with a binding tape (hereinafter, tape). If it is too strong, the bound object will break, and if it is too loose, it will come apart. Further, this tightening force must be constant in the process of tightening, but when looking at Patent Document 1 from this point of view, the object to be bound is bound while being conveyed sideways, and is quickly bound. It has become something that can be done. However, it is not mentioned in detail in terms of constant and stable tightening force. In other words, in terms of tightening force, it is conceivable to give resistance when pulling out the tape and to give resistance to the rotation of the tape reel, but in the former, the tape is damaged, and in the latter, the free rotation of the tape reel There are concerns about hindrance.

Therefore, in the present invention, the pulling tape is hung around the fixed arm and the roller attached to the movable arm, the movable arm is lifted by the pulling output of the tape, and the resistance force thereof is used as the tightening force. Then, by changing the weight attached to the movable arm, the tightening force can be adjusted and a uniform tightening force can be obtained in the binding process.

Under the above problems, in the present invention, the bracket for mounting the rotating shaft in the front-rear direction is attached to the frame supporting the tape reel around which the binding tape is wound, and the fixing arm is attached to the rotating shaft. Position and fix it so that it extends laterally to the left side, and attach the first, second, and third rollers that can rotate from the right to the fixed arm, while extending the rotation shaft forward from the bracket to attach the rotatable base roller. Along with the attachment, the rotating arm with the weight attached to the rotating shaft is stacked in front of the fixed arm to rotatably support the shaft, and the fourth and fifth rollers that can also rotate from the right are attached to the rotating arm, and further. In addition to providing a first stopper and a second stopper that turn on and off the flow of the binding tape on the upstream side of the base roller and the downstream side of the third roller located on the leftmost side, a motor is connected to the rotating shaft via a clutch. At the time of binding, the first stopper is operated and the second stopper is released, the clutch is disengaged to allow the rotating arm to move upward, and after binding, the first stopper is released and the first stopper is released. (Ii) Provided is a structure for stabilizing the winding force of the binding tape in the binding device, which is characterized in that the stopper is operated and the clutch is connected to drive the motor to return the rotating arm to the original origin position. ..

In addition, the present invention provides the means according to claims 2 to 7 below in the structure for stabilizing the winding force of the binding tape in the above binding device.
A subframe extending in an L shape to the right is attached to the frame between the tape reel and the bracket according to claim 2, a rotatable intermediate roller is attached to the subframe, and the binding tape is attached from the tape reel via the intermediate roller. The structure in which the switch and the dog are attached between the rotating arm and the frame according to claim 3, and the structure in which the origin position is confirmed, and the structure in which the rotating arm operates the switch at the origin position in claim 4. The structure before returning to the above, the structure of claim 5 in which the switch is a proximity switch, the structure of claim 6 in which the rod-shaped objects in which the bound object is intermittently transported by the transport bucket are integrated. 7. The structure in which the weight of the weight can be adjusted.

When the binding tape is wound around the object to be bound by the means of the ball control item 1, that is, by the functions of the first and second stoppers, the fixed and movable arms, and the rollers provided therein, the binding tape cannot be paid out. Therefore, the movable arm is lifted, and the force that opposes the weight becomes the tightening force of the binding tape. After tying the rotating arm returns to its original, ready for the next binding. Further, this tightening force can be adjusted by a weight attached to the movable arm.
By taking the means of claims 2 to 7, the certainty of the function and the quickness of the operation can be ensured.

It is a front view which looked at the bundling device from the side. It is a top view of the binding device. It is a front view of the main part before bundling when the bundling device is seen from the side. It is a front view of the main part after bundling when the bundling device is seen from the side. It is a front view of the main part of the 1st and 2nd stoppers.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the binding device as viewed from the side (hereinafter, this is referred to as a front view), FIG. 2 is a plan view, and FIG. 3 is a front view showing a main part such as a binding portion. The nominations in the left-right, up-down, and front-back directions are based on the paper shown in FIG. In other words, regarding the front and back, the front side of the paper is called the front and the opposite side is called the rear, but in addition to this, paying attention to the flow direction of the transport bucket, the left side of the paper may be upstream and the right side may be downstream. The present invention provides a transport device 3 having a transport bucket 2 composed of two rows of V-shaped attachments 1 that move from the upstream side to the downstream side. A binding portion 4 is provided downstream of the transport device 3, and the binding portion 4 is set above the transport device 3.

Bundling is performed by pulling out the reel-shaped binding tape 6 housed in the tape case 5 provided above by the tape pulling device 7 and winding it around the bound object 9 gripped by the chuck 8. That is, the tape pull-out device 7 is provided with a tape holder 10 interposed between the tape case 5 and the chuck 8, and the tape holder 10 is an actuator (not shown) such as a cylinder or a cam whose tip is a bound object 9. It is designed to make a rocking motion that moves closer to and from the cylinder. The tape 6 is slightly viewed through the tip of the tape holder 10 to approach the bound object 9, and the tip of the tape 6 is fastened to the outer circumference of the bound object 9.

A stand 12 stands up from the side frame 11 on the downstream side of the chuck 8 of the side frame 11 that covers the base of the transport device 2, and the above-mentioned tape case 4 is attached to the upper portion thereof. Below the tape case 4, an L-shaped subframe 13 projecting to the right from the stand 11 is provided, to which an intermediate roller 14 is attached. Further, below that, the fixing arm 15 is fixed at right angles so as to protrude to the left of the stand 12. A rotating shaft 16 is rotatably supported at the downstream end of the fixed arm 15 in the front-rear direction, and a rotatable base roller 17 is provided at the front end thereof. A bracket 18 for covering the rotating shaft 16 is provided on the rear side, and the first coupling 19, the clutch 20, the second coupling 21, and the motor 22 connected to the rotating shaft 16 are sequentially connected therein. The rotation shaft 16 can be rotated by the motor 22. Three rollers, a first roller 23, a second roller 24, and a third roller 25, are rotatably attached to the fixed arm 15 from the right side on the left side of the stand 12.

A movable arm 26 exists in front of the fixed arm 15, and its right end is fixed to the rotating shaft 16. In addition to this, two rollers, a fourth roller 27 and a fifth roller 28, are rotatably attached to the movable arm 26 from the right side. In this case, the first roller 23 is arranged so as to be sandwiched between the fourth roller 27 and the fifth roller 28. In addition, a weight 29 is also attached to the movable arm 26. The weight 29 in this example has a rod shape, but the weight can be adjusted by inserting a sleeve (not shown) into the weight 29. In addition, a switch (a non-contact proximity switch is suitable) 30 is attached to the stand 12, and a dog 31 that reacts to the switch 30 is attached to the movable arm 26. Further, a first stopper 32 for turning on / off the flow of the tape 5 is attached to the subframe 13 or the fixed arm 15. In addition, a second stopper 33 having the same function is attached between the lower part of the third roller 25 located on the leftmost side of the fixed arm 15 and the tape holder 10.

FIG. 1 is also a front view in which the tape 6 is guided from the tape reel 4 to the bound object 9, but in the above state, the tape 6 is pulled out from the tape case 4 and passes through the first stopper 32 from the intermediate roller 14. It is folded back around the first roller 23, the fourth roller 27, the second roller 24, and the fifth roller 28 via the base roller 17, and finally bound by the tape holder 10 from the third roller 23 through the second stopper 33. It has been taken over by thing 9. That is, the tape 5 is hung on each roller of the fixed arm 15 with respect to the first to third rollers 23 to 25 along the upper surface, and the fifth and sixth rollers 27, of the movable arm 26 are hung. For 28, it is hung down along the lower surface. In this case, the third roller 23 is on the leftmost side of all the rollers, and the rollers 27, 28 of the movable arm 26 are on the right side of the rollers 23, 24, 25 of the fixed arm 15.

When the object 9 to be bound is grasped by the chuck 8 and rotated, binding is performed. At this time, the first stopper 32 is closed and the second stopper 33 is opened. Therefore, since the tape 6 cannot be pulled out (flowed), the movable arm 26 is lifted to deal with this. There is resistance due to the weight 29 in lifting the movable arm 26, and the reaction force becomes a tightening force at the time of binding. At this point, the tightening force can be adjusted by changing the weight of the weight 29. When the object to be bound 9 is bound, a cutter 34 provided near the chat 8 and tilts up and down with respect to the tape 6 comes down and the tape 6 is cut. The front view of FIG. 4 shows this state.

When the tape 6 is cut, the transport bucket 2 shifts, but at the same time, the clutch 20 is engaged, and the motor 22 is driven to return the movable arm 26 to the original position (origin position). When the movable arm 26 returns to the origin position, the drive of the motor 22 is stopped. The origin position at this time is confirmed by the switch 30 and the dog 31 described above, but since there is inertia when the movable arm 26 is stopped at the origin position, the operation of the switch 30 and the dog 31 is performed by checking the position of the dog 31 and the like. It is preferable to adjust and start a little earlier. When the movable arm 26 returns to the origin position, the first stopper 32 opens to allow the tape 6 to flow, and the second stopper 33 closes to prepare for the next binding. At this time, the reason why the second stopper 33 is closed is to prevent the tape 6 from flowing backward due to the inertia of the movement of the movable arm 26 and causing slack.

FIG. 5 is a conceptual diagram of the first (second) stopper 32, but the movable piece 32b is relative to the fixed piece 32a.
Are facing each other, and the tape 6 is inserted between them. Then, when a rotation command is issued to the chuck 8 to rotate the bound object 9 around which the tape 6 is wound, the movable piece 32b moves to the fixed piece 32a side, sandwiches the tape 6 in between, and stops the movement. ing. On the other hand, when the movable arm 26 is lowered, the movable piece 32b is separated from the fixed piece 32a to allow the tape 6 to flow. The movement of the movable piece 32b may be anything, and something like suction by a magnet (solenoid) can be considered. Further, the signal may be transmitted in a program that executes the sequence.

1 Attachment 2 Conveying bucket 3 Conveying device 4 Bundling part 5 Tape case 7 Bundling tape 7 Tape pulling device 8 Chuck 9 Bundling object 10 Tape holder 11 Side frame 12 Stand 13 Subframe 14 Intermediate roller 15 Fixed arm 16 Rotating shaft 17 units Roller 18 Bracket 19 First Coupling 20 Clutch 21 Second Coupling 22 Motor 23 First Roller 24 Second Roller 25 Third Roller 26 Movable Arm 27 Fourth Roller 28 Fifth Roller 29 Weight 30 Switch 31 Dog 32 First Stopper 32a 〃 fixed piece 32b 〃 movable piece 33 second stopper
34 cutter

Claims (7)

A bracket is attached to the frame that supports the tape reel on which the binding tape is wound, and the rotating shaft is installed in the front and rear. While attaching the first, second, and third rollers that can be rotated from, the rotating shaft is extended forward from the bracket to attach the rotatable base roller, and the rotating arm with the weight attached to the rotating shaft is fixed. The fourth and fifth rollers, which are also rotatable from the right, are attached to the rotating arm so that they can be rotatably supported by stacking them in front of the base roller, and further upstream of the base roller and downstream of the third roller located on the leftmost side. In addition to providing a first stopper and a second stopper that turn on and off the flow of the binding tape on the side, a motor is connected to the rotating shaft via a clutch to operate the first stopper and release the second stopper at the time of binding. At the same time, the clutch is disengaged to allow the rotating arm to move upward, and after binding, the first stopper is released and the second stopper is operated, and the clutch is connected to drive the motor. A structure for stabilizing the winding force of the binding tape in the binding device, which is characterized by returning the rotating arm to the original position of origin. A subframe that projects to the right in an L shape is attached to the frame between the tape reel and the bracket, and a rotatable intermediate roller is attached to the subframe to guide the binding tape from the tape reel to the base roller via the intermediate roller. The structure for stabilizing the winding force of the binding tape in the binding device according to claim 1. The structure for stabilizing the winding force of the binding tape in the binding device according to claim 1 or 2, wherein a switch and a dog are attached between the rotating arm and the frame to serve as an origin sensor for confirming the origin position. A structure in which the winding force of the binding tape in the binding device according to any one of claims 1 to 3 is constant, in which the switch is operated before the rotating arm returns to the origin position. A structure for stabilizing the winding force of the binding tape in the binding device according to any one of claims 1 to 4, wherein the switch is a proximity switch. A structure for stabilizing the winding force of a binding tape in any of the binding devices according to any one of claims 1 to 5, wherein the bound object is a collection of rod-shaped objects that are intermittently conveyed by a transport bucket. A structure for stabilizing the winding force of the binding device tape in the binding device according to any one of claims 2 to 6, wherein the weight of the weight can be adjusted.
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