JP6215085B2 - Supply device for handle strings in a handle manufacturing machine - Google Patents

Description

  The present invention relates to a handle string supply device in a handle manufacturing machine that manufactures a handle that is attached to a bag body.

A handle is manufactured separately from the bag, and the handle is attached to the bag by attaching the handle to the bag.
A handle manufacturing machine that manufactures the above-described handle is disclosed in Patent Document 1.
This handle making machine includes a rotating laminating drum, a handle string supply device, a first reinforcing paper supply unit, a second reinforcement paper supply unit, a cutter, and the like, and is pulled out from the handle string supply device. The handle string is supplied to the bonding drum by swinging the string guide, and the first and second reinforcing paper are supplied from the first and second reinforcing paper supply units to the bonding drum, and then bonded. In the aligning drum, the handle string is bonded so as to be sandwiched between the first reinforcing paper and the second reinforcing paper, and then is cut by a cutter to form a handle.

In this handle manufacturing machine, the handle string supply device supports a string reel around which a handle string is wound so as to be rotatable on a horizontal support shaft, and the string guide swings as the bonding drum rotates. Then, it is sequentially pulled out from the string reel and supplied to the bonding drum.
That is, the handle string supply device is a system that holds and rotates the string reel vertically.

JP-A-2-220835

The conventional handle string supply device holds and rotates the string reel vertically, pulls the handle string from the string reel, and supplies it, so that eccentricity occurs due to the weight of the string reel, and for the handle by eccentric rotation of the string reel. The twisting of the handle string causes the twisting of the handle string and the twisting of the handle string.
For this reason, there is a case where the handle string is twisted and cut, or the handle string is stuck in a state of being twisted to the first and second reinforcing papers in the bonding drum, and a correct handle may not be manufactured.

  Moreover, since the conventional handle string supply device does not control the tension of the handle string drawn from the string reel, there arises a problem of causing meandering, derailment, and cutting of the handle string.

  The present invention has been made in order to solve the above-described problems, and a first object of the present invention is to disengage the handle string due to the weight of the string reel, and to twist the handle string due to the handle string winding. The handle string supply device in the handle manufacturing machine can continuously and stably supply the handle string.

  A second object of the present invention is to provide a handle string supply device in a handle manufacturing machine that can continuously and stably supply a handle string without causing meandering, derailment, and cutting of the handle string.

The present invention is a supply device for a handle string in a handle manufacturing machine,
An apparatus main body, and a turntable that is rotatably attached to the apparatus main body and can horizontally place a string reel wound with a handle string;
Place the string reel horizontally on the upper surface of the turntable, and pull the handle string from the outer peripheral end of the string reel while rotating the string reel with the turntable ,
A string reel holding device is attached to the turntable, which is in contact with the inner peripheral surface of the string reel placed horizontally on the upper surface of the turntable and holds the string reel concentrically with the rotation center of the turntable,
The string reel holding device includes a plurality of string reel holding pieces having an arc-shaped holding surface, and a moving mechanism for moving the plurality of string reel holding pieces in a radial direction,
The lower part of the string reel holding piece is supported by a slide guide provided on the upper surface of the turntable so as to be freely movable .

The handle string supply device in the handle manufacturing machine of the present invention, a plurality of string reels are placed on the turntable in multiple stages,
Pull out the handle string from the outer peripheral end of the uppermost string reel, and connect the handle string at the inner peripheral end of the uppermost string reel to the handle string at the outer peripheral end of the next-stage string reel. By connecting the handle string at the inner peripheral end of the cable and the handle string at the outer peripheral end of the string reel under the next-stage string reel, the handle string is continuously connected from the uppermost string reel to the lowermost string reel. Can be pulled out.

  In this way, the handle string can be continuously and stably supplied over a long period of time.

The handle string supply device in the handle manufacturing machine of the present invention is provided with a brake for braking the turntable, and a means for giving a pulling resistance to the pulled handle string,
The tension of the handle string pulled out from the string reel can be controlled.

  In this way, since the tension of the pulling handle string can be controlled, the handle string can be continuously and stably supplied without causing meandering, derailment, and cutting of the pulling string.

  The supply device for the handle string in the handle manufacturing machine of the present invention can be provided with a rotation drive device that rotates the turntable.

  In this way, since the handle string can be supplied while rotating the string reel, the supply speed of the handle string to the manufacturing machine body can be increased.

The supply device for the handle string in the handle manufacturing machine of the present invention is such that the rotary drive device rotates the table with a motor,
Detection means for detecting a change in the feeding speed of the handle string delivered from the string reel, and motor control means for controlling the rotation speed of the motor in response to detection by the detection means can be provided.

  In this way, since the handle string fed from the string reel can be fed at the same feed speed, the handle string can be stably supplied while rotating the string reel.

The supply device for the handle string in the handle manufacturing machine of the present invention, the detection means outputs a fast signal when the feed rate of the handle string is faster than the set speed, and outputs a slow signal when it is slow,
The motor control means can reduce the rotation speed of the motor when a fast signal is input, and increase the rotation speed of the motor when a slow signal is input.

  In the handle manufacturing machine according to the present invention, the handle string supply device is in contact with the inner peripheral surface of a string reel placed horizontally on the upper surface of the turntable, and the string reel is concentric with the rotation center of the turntable. A string reel holding device can be attached.

  In this way, the string reel does not move when the string reel rotates with the turntable and the handle string is pulled out from the string reel.

The supply device for the handle string in the handle manufacturing machine according to the present invention is such that the string reel holding device has a plurality of string reel holding pieces each having an arc-shaped holding surface, and a movement for moving the plurality of string reel holding pieces in a radial direction. With a mechanism,
The plurality of string reel holding pieces are in contact with the inner peripheral surface of the string reel by holding the holding surface along a virtual circular locus centering on the rotation center of the turntable,
The plurality of string reel holding pieces may be movable along virtual circular trajectories having different diameters.

  In this way, it is possible to hold string reels having different inner peripheral surface diameters.

  In the handle string supply device in the handle manufacturing machine according to the present invention, the device body includes wheels, and can travel in any direction.

  If it does in this way, it can be used for a plurality of handle manufacturing machines with one supply device.

  In the handle string supply device in the handle manufacturing machine according to the present invention, a weight can be provided over the entire upper surface of the string reel placed on the upper surface of the turntable.

  If it does in this way, the string for handles currently wound by the string reel will not collapse.

  According to the present invention, the twisting of the handle string due to the eccentricity of the string reel by its own weight and the twisting of the handle string due to the winding of the handle string can be reduced, so that the handle string can be supplied continuously and stably.

It is a schematic front view of the handle manufacturing machine of this invention. It is explanatory drawing of how to connect the string for grips of the string reel piled up in multiple stages. It is a longitudinal cross-sectional view of a string reel holding device. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a disassembled perspective view of a string reel holding device. It is operation | movement explanatory drawing of sectional drawing of a string reel holding | maintenance apparatus. It is operation | movement explanatory drawing of sectional drawing of a string reel holding | maintenance apparatus. It is a partially broken front view which shows the 2nd Embodiment of this invention.

As shown in FIG. 1, the handle manufacturing machine 1 includes a manufacturing machine body 2 and a handle string supply device 4 that supplies a handle string 3 to the manufacturing machine body 2.
The manufacturing machine main body 2 includes a rotating laminating drum (not shown), first and second reinforcing paper supply units, a cutter, and the like, and the handle string 3 is sandwiched between the first reinforcing paper and the second reinforcing paper in the laminating drum. Glue together and cut with a cutter to make a handle.
Since the manufacturing machine main body 2 is the same as the conventional one, a specific description is omitted.

  The handle string supply device 4 includes an apparatus body 10, a turntable 20 that is rotatably attached to the apparatus body 10, a guide device 30 that guides pulling of the handle string 3 attached to the apparatus body 10, and a turntable. And a string reel holding device 40 attached to 20.

The string reel 5 around which the handle string 3 is wound is placed horizontally on the upper surface of the turntable 20 so that the center line of the string winding is directed in the vertical direction.
As for the string reel 5, the handle string 3 is pulled out from the outer peripheral end.
When the handle string 3 is pulled out, the string reel 5 rotates together with the turntable 20.

Thus, the handle string 3 is sequentially pulled out from the outer peripheral end of the string reel 5 by the rotation of the bonding drum of the manufacturing machine body 2 and the handle string 3 is supplied to the manufacturing machine body 2.
Since the string reel 5 is placed horizontally on the turntable 20, rotates together with the turntable 20, and is pulled out from the outer peripheral end, the handle string 3 is unwound due to the eccentricity of the string reel 5 due to its own weight, and the handle string Since the occurrence of kinking or the like of the handle string 3 due to the winding of 3 is reduced, the handle string 3 can be continuously and stably supplied.

A plurality of string reels 5 are stacked and placed on the turntable 20 in, for example, three stages, and the handle string 3 is pulled out from the outer peripheral end of the uppermost string reel 5a. The handle string 3 can be pulled out continuously with the string reel 5c.
That is, as shown in FIG. 2, the handle string 3 is pulled out from the outermost end 5-1 of the uppermost part of the uppermost string reel 5a. In FIG. 2, the upper and lower string reels 5 are shown apart from each other for easy understanding.
By connecting the lowermost inner peripheral end 5-2 of the uppermost string reel 5a and the uppermost outer peripheral end 5-1 of the intermediate string reel 5b, the handle string 3 of the uppermost string reel 5a and the middle The handle string 3 of the string reel 5b is continuous.
By connecting the lowermost inner peripheral end 5-2 of the intermediate string reel 5b and the uppermost outer peripheral end 5-1 of the lowermost string reel 5c, the handle string 3 of the intermediate string reel 5b and the lowermost end The handle string 3 of the string reel 5c is continuous.
That is, by connecting the lowermost inner peripheral end 5-2 of the upper string reel 5 and the uppermost outer peripheral end 5-1 of the lower string reel 5, the upper string reel 5 to the lower string reel are connected. The handle string 3 can be pulled out continuously.

  Since it is like this, since the handle string 3 is continuously supplied from the plurality of string reels 5, the handle string 3 can be stably supplied continuously for a long time, and the handle string is repeatedly cut. As a result, there are many effects such as a reduction in the time for stopping the handle making machine, etc., an improvement in production efficiency and product quality, and a reduction in production cost.

As shown in FIG. 1, a weight 6 is placed on the uppermost string reel 5.
The weight 6 applies a downward force to the string reel 5, and the handle string 3 is fed out from the string reel 5, so that the wound handle string 3 is not collapsed.
That is, the upper handle string 3 wound around the string reel 5 is pressed against the handle string 3 wound under the handle string 3 by the weight 6, so that the handle string 3 is moved downward. Since it is paid out while being pressed against the wound handle string 3, the wound handle string 3 does not collapse.

  The weight 6 of the embodiment is in contact with the entire surface of the handle string 3 wound around the string reel 5 by a disk plate.

The apparatus main body 10 has wheels, for example, caster wheels 12 attached to a substrate 11, and the apparatus main body 10 can travel in any direction.
The caster wheel 12 can be locked so as not to rotate by operating the lock lever 12a.
Since it is like this, the handle supply device 4 of a handle can be moved, and it can be used for the some manufacturing machine main body 2 with one supply device.
Moreover, the string reel 5 can be efficiently mounted on the turntable 20 by moving the handle string supply device 4 across the manufacturing machine main body 2 and the string reel receiving place.

The turntable 20 is fixed to a rotating shaft 21 that is rotatably attached to the apparatus main body 10 (substrate 11).
The rotary shaft 21 is a stepped shaft having a lower small-diameter shaft 21a, an intermediate large-diameter shaft 21b, and an upper small-diameter shaft 21c. The lower small-diameter shaft 21a is rotatably attached to the vertical hole 13 of the substrate 11 by a bearing 14. .
The turntable 20 is disk-shaped and has a hole 22 at the center thereof.
The hole 22 of the turntable 20 is inserted into the upper small-diameter shaft 21c of the rotating shaft 21, the peripheral edge of the hole 22 is in contact with the upper surface of the intermediate large-diameter shaft 21b, and is fixed with bolts 23.

  As such, the turntable 20 rotates relative to the apparatus body 10.

A screw hole 15 opened in the vertical hole 13 is formed in the substrate 11 of the apparatus body 10 in the horizontal direction.
The screw portion 16 a of the screw shaft 16 is screwed into the screw hole 15 of the substrate 11.
A brake shoe 17 is attached to one end of the screw shaft 16 that protrudes into the vertical hole 13 so as to face the intermediate large-diameter shaft 21 b of the rotating shaft 21.
A handle 18 is attached to the other end of the screw shaft 16.
By holding the handle 18 and rotating the screw shaft 16 in one direction, the brake shoe 17 moves in a direction approaching the intermediate large-diameter shaft 21b.
By holding the handle 18 and rotating the screw shaft 16 in the other direction, the brake shoe 17 moves in a direction away from the intermediate large-diameter shaft 21b.

Thereby, the brake shoe 17 can be pressure-bonded to the intermediate large-diameter shaft 21 b of the rotating shaft 21 to brake the rotating shaft 21.
In addition, the magnitude of the braking force that brakes the rotating shaft 21 can be adjusted by adjusting the magnitude of the pressure applied to the intermediate large-diameter shaft 21 b of the brake shoe 17.
That is, the intermediate large diameter shaft 21 b of the rotating shaft 21 and the brake shoe 17 attached to the screw shaft 16 constitute a friction brake that brakes the rotation of the turntable 20.

In the guide device 30, a guide cylinder 32 is attached to a bracket 31 attached to the apparatus main body 10 (substrate 11), and a pressing piece 33 and a receiver 34 made of spring steel are attached to the guide cylinder 32.
As a result, the gripping cord 3 is clamped by the presser piece 33 and the receiver 34, and a back tension, that is, a pulling resistance force of the gripping cord 3 is applied to the gripping cord 3.

A constant tension is applied to the handle string 3 when the handle string 3 is pulled out by braking the rotation of the turntable 20 with a brake and applying a back tension to the handle string 3 with the holding piece 33 and the receiver 34. Is granted.
That is, it is a friction type brake, tension control means for the handle strap 3 pulled out by the presser piece 33 and the receiver 34.

  In this way, by controlling the tension of the pull-out handle string 3 to be constant, the handle string 3 does not sag, and the handle string 3 does not meander, derail, or cut. The cord 3 can be continuously and stably supplied.

The string reel holding device 40 holds the string reel 5 placed on the turntable 20 concentrically with the rotation center of the turntable 20 so that the string reel 5 rotates integrally with the turntable 20.
Thereby, when the handle string 3 wound around the string reel 5 is pulled out, the string reel 5 does not rotate eccentrically.
In addition, the string reel 5 does not move along the turntable 20.
Furthermore, the plurality of string reels 5 stacked on the turntable 20 do not fall.

Details of the string reel holding device 40 will be described with reference to FIGS.
The string reel holding device 40 includes a plurality of string reel holding pieces 41 that are in contact with the inner peripheral surface 5 d of the string reel 5, and a moving mechanism 42 that moves each string reel holding piece 41 in the radial direction of the string reel 5.

The string reel holding piece 41 has an arc-shaped holding surface 41a.
The plurality of string reel holding pieces 41 are arranged along a virtual circular locus whose holding surface 41 a is centered on the rotation center of the turntable 20.
Thereby, the holding surfaces 41a of the plurality of string reel holding pieces 41 are in contact with the inner peripheral surface 5d of the string reel 5 placed on the upper surface of the turntable 20, and the string reel 5 is held concentrically with the rotation center of the turntable 20. To do.

The moving mechanism 42 moves the plurality of string reel holding pieces 41 around the rotation center of the turntable 20 in synchronization with the radial shape.
Thereby, the string reels 5 having different diameters of the inner peripheral surface 5 d can be held on the turntable 20 concentrically with the rotation center of the turntable 20.

The rotating shaft 21 that rotatably supports the turntable 20 has an upper small-diameter shaft 21c having a hollow shape. A shaft 43 is rotatably mounted by a bearing 44 in the hollow portion of the upper small-diameter shaft 21c.
An upper pinion 45 and a lower pinion 46 are attached to the shaft 43 so as to be separated in the vertical direction.
The upper pinion 45 and the lower pinion 46 have a smaller diameter than the hollow portion of the upper small-diameter shaft 21c, and the upper pinion 45 and the lower pinion 46 are rotatable within the hollow portion of the upper small-diameter shaft 21c.
The shaft 43 projects upward from the upper small-diameter shaft 21c. A handle 47 is attached to the protruding portion of the shaft 43.
Thereby, by rotating the shaft 43 with the handle 47, the upper pinion 45 and the lower pinion 46 rotate in synchronization.

A pair of radial upper notches 48 and 48 and a pair of radial lower notches 49 and 49 are formed on the upper small-diameter shaft 21c with a 90 ° phase shift.
The upper pinion 45 is located in the upper notch 48 and the lower pinion 46 is located in the lower notch 49.
An upper plate 50 is attached to each upper notch 48 in the radial direction and parallel to each other.
The upper racks 51 are attached to the upper plates 50 so as to be movable in the radial direction and parallel to each other, and the tooth portions 51 a of the upper racks 51 are engaged with the upper pinions 45.
For example, a long hole 52 is formed in the upper rack 51 and a pin 53 is inserted into the upper plate 50 from the long hole 52 so that the upper rack 51 moves using the pin 53 as a guide.

A lower plate 54 is attached to each lower notch 49 in the radial direction and parallel to each other.
A lower rack 55 is attached to each lower plate 54 so as to be movable in the radial direction and parallel to each other, and a tooth portion 55 a of each lower rack 55 is engaged with the lower pinion 46.
For example, by forming a long hole 56 in the lower rack 55 and inserting a pin 57 into the lower plate 54 from the long hole 56, the lower rack 55 moves using the pin 57 as a guide.

The upper rack 51 and the lower rack 55 are 90 ° out of phase, and the upper rack 51 and the lower rack 55 are positioned around the upper small-diameter shaft 21c with an interval of 90 °.
The string reel holding pieces 41 are respectively attached to the upper rack 51 and the lower rack 55, and the string reel holding pieces 41 are positioned around the upper small-diameter shaft 21c at intervals of 90 °.

By rotating the shaft 43 with the handle 47, the upper pinion 45 and the lower pinion 46 rotate.
As the upper pinion 45 rotates, the pair of upper racks 51 move in the opposite direction in the radial direction, and the two string reel holding pieces 41 attached to the pair of upper racks 51 move in the opposite direction in the radial direction.
As the lower pinion 46 rotates, the pair of lower racks 55 moves in the opposite direction in the radial direction, and the two string reel holding pieces 41 attached to the pair of lower racks 55 move in the opposite direction in the radial direction.
When rotating the shaft 43 with the handle 47, the brake shoe 17 is strongly pressed against the intermediate large-diameter shaft 21b to increase the braking force of the brake so that the rotating shaft 21 does not rotate.

By rotating the shaft 43 in one direction with the handle 47, as shown in FIG. 7, the four string reel holding pieces 41 are separated from the center of the upper small-diameter shaft 21c (the rotation center of the turntable 20), that is, Move towards the perimeter.
By rotating the shaft 43 in the other direction with the handle 47, the direction in which the four string reel holding pieces 41 approach the center of the upper small-diameter shaft 21c (the rotation center of the turntable 20), as shown in FIG. That is, it moves toward the center.

  Since it is like this, the diameter of the virtual circular locus which the four string reel holding pieces 41 form changes by moving the four string reel holding pieces 41 toward the outer periphery or moving toward the center. As shown in FIGS. 7 and 8, it is possible to hold the string reels 5 having different inner peripheral surface 5d diameters.

In this embodiment, since the upper rack 51 and the lower rack 55 are attached to the upper part of the string reel holding piece 41, the lower part of the string reel holding piece 41 is arranged in the radial direction by the slide guide 60 provided on the upper surface of the turntable 20. It is supported to move freely.
Thereby, the string reel holding piece 41 moves smoothly.

As shown in FIG. 5, the slide guide 60 includes a lower rail 61 attached to the upper surface of the turntable 20, and an upper rail 62 provided movably on the lower rail 61.
A bracket 63 is attached to the inner side surface 41 b of the string reel holding piece 41. The upper part of the bracket 63 and the upper rack 51 and the lower rack 55 are slidably connected.
The lower part of the bracket 63 is slidably connected to the upper rail 62.
As a result, the lower portion of the string reel holding piece 41 is guided in the radial direction by the upper rail 62 and the lower rail 61.

The moving mechanism 42 that moves the plurality of string reel holding pieces 41 in the radial direction is not limited to the above.
For example, a column is attached to the center of rotation of the turntable, a plurality of cylinders are radially attached to the column, and the string reel holding piece is moved in the radial direction by the cylinder.

Next, a second embodiment of the present invention will be described.
As shown in FIG. 9, the apparatus main body 10 includes a rotation drive device 7. The rotation driving device 7 rotates the string reel 5 by rotating the turntable 20.

The rotation drive device 7 includes a motor 70 attached to the lower surface of the apparatus body 10 and a rotation transmission mechanism 71 that transmits the rotation of the output shaft of the motor 70 to the rotation shaft 21. The motor 70 and the rotation transmission mechanism 71 are covered with a cover body 72.
By rotating the output shaft by driving the motor 70, the rotation of the output shaft is transmitted to the rotation shaft 21 by the rotation transmission mechanism 71, and the rotation shaft 21 rotates. As the rotary shaft 21 rotates, the turntable 20 rotates.
As such, the rotation speed of the turntable 20, that is, the rotation speed of the string reel 5 can be controlled by the motor 70.

An electric motor is used as the motor 70.
As the rotation transmission mechanism 71, a normal mechanism such as a combination of gears or a combination of a pulley and a belt can be used.
As the rotation transmission mechanism 71, a mechanism having a deceleration function can be used.

  By doing so, the string reel 5 rotates together with the turntable 20, so that the handle string 3 from the string reel 5 can be pulled out at a high speed, and the handle string 3 is supplied to the manufacturing machine body 2. Speed can be increased.

  When the handle string 3 is fed out by rotating the string reel 5 at a constant rotational speed, the feed rate of the handle string 3 differs depending on the radial position at which the handle string 3 is fed out from the string reel 5. The handle string 3 may be slackened or pulled in the feeding path of the string 3, and the supply of the handle string 3 may become unstable.

  That is, the feeding amount of the handle string 3 per rotation of the string reel 5 is the largest in the radial outer peripheral end of the string reel 5, gradually decreases toward the radial inner peripheral end, and the radial inner peripheral end is the smallest. Therefore, the feeding speed of the handle string 3 is fastest when it is fed from the radial outer peripheral end of the string reel 5, gradually decreases toward the radial inner peripheral end, and is lowest when it is fed from the radial inner peripheral end.

  If the difference between the outer diameter and inner diameter of the string reel 5 is small, the change in the feeding speed of the handle string 5 is small, so that the handle string 3 can be supplied stably to some extent. If the difference in diameter is large, the change in the feeding speed of the handle string 5 is large, and the supply of the handle string 3 becomes unstable.

  As shown in FIG. 9, a detecting means 8 for detecting a change in the feeding speed of the handle string 3 on the feeding path of the handle string 3 from the string reel 5, and a change in the feeding speed detected by the detecting means 8. Motor control means 9 for controlling the rotational speed of the motor 70.

The detecting means 8 outputs a fast signal when the feeding speed of the handle string 3 is higher than the set speed, outputs a slow signal when the speed is slow, and outputs a signal when the feed speed of the handle string 3 is the set speed. Is not output.
For example, the feeding speed of the handle string 3 when the handle string 3 is sent out from the radial center of the string reel 5 is set as the set speed.
Note that the delivery speed being the set speed includes that a predetermined range is provided for the set speed and that the delivery speed is the set speed if the feed speed is within a predetermined range.

The signal output from the detection means 8 is input to the motor control means 9.
The motor control means 9 slows down the rotational speed of the motor 70 when a fast signal is inputted, and fastens the rotational speed of the motor 70 when a slow signal is inputted.

By doing in this way, when the feeding speed of the handle string 3 is faster than the set speed, the rotational speed of the motor 70 is slowed down and the rotational speed of the string reel 5 is slowed down. Will be late.
When the feeding speed of the handle string 3 is slower than the set speed, the rotation speed of the motor 70 is increased and the rotation speed of the string reel 5 is increased, so that the feeding speed of the handle string 3 is increased.
Therefore, the feeding speed of the handle string 3 fed from the string reel 5 can be the same even when the handle reel 3 is fed from a different position in the radial direction of the string reel 5, and the handle string 3 while rotating the string reel 5. Can be supplied stably.

The detection means 8 includes a dancer roll 81 that moves up and down due to a change in tension of the handle string 3, and a sensor 82 that detects an upward movement and a downward movement of the dancer roll 81 from the reference position.
A bracket 83 is attached to the apparatus main body 10, and a frame 84 is attached to the bracket 83.
The first roll 85 and the second roll 86 are provided on the frame 84, and the handle string 3 is spanned across the first roll 85, the dancer roll 81, and the second roll 86, thereby the first roll 85 and the second roll 86. A loop 3a is formed between
The dancer roll 81 is attached to one end of the arm 87. The other end of the arm 87 is attached to the sensor main body 82a of the sensor 82 so as to be movable up and down.
The sensor body 82 a is attached to the frame 84.
A downward force is applied to the dancer roll 81 by a method of applying a weight to the arm 87, a spring, or a bellowram cylinder so that the magnitude of the set tension can be adjusted.

The arm 87 is set to be horizontal when the pull-out string 3 feed speed is set and the tension is the set tension. For example, the speed when the handle string 3 is fed out from the radial center of the string reel 5 is set as the set speed.
The position of the dancer roll 81 when the arm 87 is in a horizontal state is set as a reference position.
The sensor 82 does not output a signal when the arm 87 is in a horizontal state.
The sensor 82 outputs a fast signal when the dancer roll 81 moves downward from the reference position and the arm 87 swings downward from the horizontal state. The sensor 82 outputs a slow signal when the dancer roll 81 swings upward from the reference position.
A fast signal and a slow signal output from the sensor 82 are input to the motor control means 9.

Next, the operation will be described.
When the feeding speed of the handle string 3 becomes faster than the set speed, the tension of the handle string 3 becomes smaller than the set tension, so that the dancer roll 81 moves downward from the reference position, and the arm 87 swings downward. .
The sensor 82 outputs a fast signal, and the motor control means 9 slows down the rotational speed of the motor 70, so that the rotational speed of the cord reel 5 slows down and the feeding speed of the grip cord 3 slows down. 3 increases, and the dancer roll 81 moves upward.

When the feeding speed of the handle string 3 reaches the set speed, the tension of the handle string 3 becomes the set tension, so that the dancer roll 81 is at the reference position and the arm 87 is horizontal.
Thereby, since the sensor 82 does not output a signal, the motor control means 9 rotates the motor 70 while maintaining the speed at that time.

When the feeding speed of the handle string 3 becomes slower than the set speed, the tension of the handle string 3 becomes larger than the set tension, so that the dancer roll 81 moves upward from the reference position and the arm 87 swings upward. .
The sensor 82 outputs a slow signal, and the motor control means 9 increases the rotation speed of the motor 70, so that the rotation speed of the string reel 5 increases and the feeding speed of the handle string 3 increases.
Thereby, the tension | tensile_strength of the string 3 for grips becomes small, and the dancer roll 81 moves below.

  When the feeding speed of the handle string 3 becomes the set speed, the tension of the handle string 3 becomes the set tension. Thus, since the dancer roll 81 is at the reference position and the arm 87 is horizontal, the sensor 82 does not output a signal, so the motor control means 9 maintains the speed at that time.

The detection means 8 may detect the actual feed speed of the handle string 3 and output a fast signal or a slow signal by comparing the detected feed speed with the set feed speed.
For example, an encoder is connected to a roll around which the handle string 3 is wound, and the rotation speed of the roll is detected by the encoder, whereby the feed speed of the handle string 3 is obtained.

  DESCRIPTION OF SYMBOLS 3 ... Handle string, 5 ... String reel, 6 ... Weight, 7 ... Rotation drive device, 8 ... Detection means, 9 ... Motor control means, 10 ... Apparatus body, 12 ... Caster wheel (wheel), 20 ... Turntable, 40 ... string reel holding device, 41 ... string reel holding piece, 42 ... moving mechanism.

Claims (9)

A supply device for a handle string in a handle manufacturing machine,
An apparatus main body, and a turntable that is rotatably attached to the apparatus main body and can horizontally place a string reel wound with a handle string;
Place the string reel horizontally on the upper surface of the turntable, and pull the handle string from the outer peripheral end of the string reel while rotating the string reel with the turntable ,
A string reel holding device is attached to the turntable, which is in contact with the inner peripheral surface of the string reel placed horizontally on the upper surface of the turntable and holds the string reel concentrically with the rotation center of the turntable,
The string reel holding device includes a plurality of string reel holding pieces having an arc-shaped holding surface, and a moving mechanism for moving the plurality of string reel holding pieces in a radial direction,
An apparatus for supplying a handle string in a handle manufacturing machine , wherein a lower part of a string reel holding piece is movably supported by a slide guide provided on an upper surface of the turntable . A plurality of string reels are placed in multiple stages on the turntable,
Pull out the handle string from the outer peripheral end of the uppermost string reel, and connect the handle string at the inner peripheral end of the uppermost string reel to the handle string at the outer peripheral end of the next-stage string reel. By connecting the handle string at the inner peripheral end of the cable and the handle string at the outer peripheral end of the string reel below the next-stage string reel, the handle string is continuously connected from the uppermost string reel to the lowermost string reel. 2. A handle string supply device in a handle manufacturing machine according to claim 1, wherein the handle string is pulled out. A brake for braking the turntable and a means for giving a pulling resistance to the pulling handle string;
3. A handle string supply device in a handle manufacturing machine according to claim 1, wherein the tension of the handle string pulled out from the string reel can be controlled.   The handle string supply device in the handle manufacturing machine according to claim 1 or 2, further comprising a rotation driving device for rotating the turntable. The rotary drive device rotates a table with a motor,
5. A handle making machine according to claim 4, further comprising: a detecting means for detecting a change in a feeding speed of the handle string fed from the string reel; and a motor control means for controlling a rotation speed of the motor in accordance with the detection by the detecting means. Supply device for handle strings in The detection means outputs a fast signal when the handle string feed speed is faster than the set speed, and outputs a slow signal when it is slow,
6. A handle string in a handle making machine according to claim 5, wherein said motor control means slows down the rotational speed of the motor when a fast signal is inputted, and fastens the rotational speed of the motor when a slow signal is inputted. Feeding device. The plurality of string reel holding pieces are in contact with the inner peripheral surface of the string reel by holding the holding surface along a virtual circular locus centering on the rotation center of the turntable,
The apparatus for supplying a handle string in the handle manufacturing machine according to any one of claims 1 to 6, wherein the plurality of string reel holding pieces are movable along virtual circle trajectories having different diameters . The apparatus main body provided with wheels, feeder of the handle for string in claim 1-7 set forth in any one handle making machine is capable of traveling in an arbitrary direction. The handle string supply device for a handle manufacturing machine according to any one of claims 1 to 8 , wherein a weight is provided over the entire upper surface of the string reel placed on the upper surface of the turntable .

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