JPH0524564A - Automatic bundling device for hose and the like - Google Patents

Abstract

PURPOSE:To automatically bundle a plural number of hoses by fixing a band by way of pulling it back after winding it around a guide plate made of a shape memory alloy in the device in the title to bundle hoses or harness in an engine room of an automobile. CONSTITUTION:A reel 13 winding a continuous body of a band 5 and a large number of fasteners 9 made of synthetic resin are stored in a main body case 10A. Additionally, a guide plate 20 made of a shape memory alloy is extensively provided horizontally from the top edge of the main body case 10A, and the band 5 is extended along its upper face. Thereafter, the band 5 is wound around hoses by bending and deforming the guide plate 20 by way of electrifying an electric heater 24 in the neighbourhood of the lower side of a plural number of the hoses, the top end part of the band 5 is inserted into a through hole of the fastener 6 through a movable holding member 43, and V grooves on both sides of the band 5 are locked with locking claws. Thereafter, an electromagnetic switch valve 32 is opened, a motor 23 is driven after cooling the guide plate 20 by supply of air, the basic end part of the band 5 is pulled back, and the band 5 is cut off with a cutting blade 45.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bundling device for hoses for automatically bundling a plurality of hoses and / or harnesses.

[0002]

2. Description of the Related Art In an automobile assembly plant, after mounting various fittings in an engine room of a body, a plurality of hoses and / or harnesses (hereinafter referred to as hoses) are connected to these fittings, and then these hoses are connected. It is necessary to bundle closely-positioned ones with a band and fix them to a predetermined position of the body through a clip. Since a large number of outfittings are arranged in high density in the engine room, it is quite difficult to automate the work of bundling the hoses, and conventionally, the work has been done manually by hand. On the other hand, regarding hoses to be mounted on the vehicle interior surface of the body, etc., in the hose preparation process, bundle the hoses in multiple places with bands or fasteners so that they have a predetermined positional relationship, and prepare as such. It is also possible to assemble such hoses to the body, but since the hoses have various lengths and are flexible and the shape is not constant, the bundling work in this preparation process is difficult to automate,
In the past, it was mainly done manually.

[0003]

As described above, since the work of bundling the hoses is performed manually, the productivity is lowered and it is difficult to reduce the cost of the work of bundling.
By the way, as a function required for an automatic bundling device that bundles hoses that are outfitted in the engine room, a function that can be inserted between the outfitting parts or a narrow space between the outfitting parts and the body, and freely located in different positions Function to guide the band around multiple hoses that are present, function to tighten the band after guiding the band, function to fix the tip end of the band and the base end of the band after tightening, and cut the band after fixing It is necessary to have various functions such as
It has been an extremely difficult task to realize these various functions with the head portion of a device that is small enough to be attached to the hand of a robot. An object of the present invention is to provide an automatic hose bundling device capable of automatically bundling the plurality of hoses that have already been fitted or the plurality of hoses that have not been fitted.

[0004]

According to a first aspect of the invention, there is provided a hose automatic bundling device according to claim 1, wherein the plurality of hoses and / or harnesses are bound by a flexible band. At least along the outer periphery of the region where the band supply means for supplying the band to be bundled and the hose attached to the tip of the band supply means and receiving the band supplied from the band supply means exist in a free state. Guide means for guiding the band so as to make one turn, and holding means for holding the tip end portion of the band via the outer peripheral portion of the hoses at a position near the base end side portion of the band,
After holding by the holding means, the base end side portion of the band is pulled back in the returning direction, and band pulling back means for bundling the hoses with the band is provided.

The hose automatic bundling device according to claim 2 is
2. The apparatus according to claim 1, wherein the guide means extends substantially straight in the first temperature state and curves in the second temperature state so as to curve along the outer peripheral portion of the region where the hoses are present. And an electric heater attached to the guide plate, and a flexible fluid passage formed along the guide plate for circulating a cooling fluid.

An automatic hose bundling device according to a third aspect is
3. The apparatus according to claim 2, wherein the band is integrally formed of a long continuous body made of a synthetic resin material, and has rack teeth formed on a surface portion which is an outer peripheral side when the hoses are bundled. To do.

An automatic hose bundling device according to a fourth aspect is
The device according to claim 3, wherein the band has V-grooves on both end surfaces thereof, and the guide plate has a plurality of clip tools for holding the band through the V-grooves.

A hose automatic bundling device according to a fifth aspect is
5. The fastener according to claim 4, which is a synthetic resin fastener for fixing the tip portion of the band and the corresponding band portion in a state where the band is pulled back by the band pulling-back means and the hoses are bound together, Fastener supply means for accommodating and sequentially supplying a large number of fasteners each having an insertion hole that allows passage of the bands that are superposed on the outer side and a locking claw that locks these rack teeth and restricts the removal of these bands. The holding means holds the front end of the band through the fastener in a state where the front end of the band is inserted into the fastener through which the base end side part of the band is inserted.

A hose automatic bundling device according to a sixth aspect is
The device according to claim 4 is characterized in that a cutting mechanism for cutting the band is provided on the proximal end side of the fastener in which the distal end portion of the band is inserted.

[0010]

In the automatic hose tying device according to the first aspect, the band supplying means supplies a flexible band for bundling a plurality of hoses and / or harnesses, and a guide attached to the tip of the band supplying means. The means guides the band so as to receive the band supplied from the band supplying means so as to make at least one turn along the outer peripheral portion of the region where the plurality of hoses are present in a free state, and the holding means is the outer peripheral portion of the hose. The distal end of the band via the band is held in the vicinity of the base end side part of the band, and after being held by the holding means, the band pulling back means pulls the base end side part of the band back in the returning direction to bundle the hoses with the band. Become.

In the hose automatic bundling device according to the second aspect, basically the same action as that of the first aspect can be obtained.
The guide means is attached to the guide plate, and a guide plate made of a shape memory alloy that extends substantially straight in the first temperature state and curves along the outer peripheral portion of the region where the hoses exist in the second temperature state. Since the electric heater and the flexible fluid passage formed along the guide plate for circulating the cooling fluid are provided, the guide plate is made to hold the tip side portion and the guide plate In the state where the temperature is extended to a substantially straight shape, bring the guide plate and the tip side of the band closer to one side of the hoses to be bundled, and in that state energize the electric heater or cool the fluid passage. When the guide plate is brought to the second temperature state by circulating the fluid, the guide plate is curved along the outer periphery of the region where the hoses are present, and the tip end of the band is held by the holding means. .

In the hose automatic bundling device according to the third aspect, basically the same action as that of the second aspect can be obtained.
The band is integrally formed of a long continuous body made of a synthetic resin material and has rack teeth formed on the outer peripheral surface when the hoses are bundled, so that the structure of the band supply means is simplified, Further, by utilizing a fastener or the like that engages with the rack teeth of the band, it becomes possible to lock the band in which the hoses are bundled in the bundled state.

In the hose automatic bundling device according to the fourth aspect, basically the same action as that of the third aspect is obtained,
Since the band has V-grooves on both end surfaces thereof, and the guide plate has a plurality of clip members for holding the band through the V-grooves, the tip side portion of the band can be maintained without impairing the deformability of the guide plate. Can be held by the guide plate, and by feeding the tip side portion of the band along the guide plate, it is possible to feed while holding the band with a plurality of clips.

In the hose automatic bundling device according to the fifth aspect, basically the same action as that of the fourth aspect is obtained,
The fastener supply means is a fastener made of a synthetic resin that fixes the tip end of the band and the corresponding band portion in a state where the band is pulled back by the band pulling back means and the hoses are bundled, and the rack teeth are placed outside. A large number of fasteners each having an insertion hole that allows passage of the overlapped bands and locking claws that lock the rack teeth and restrict the withdrawal of these bands are accommodated and sequentially supplied. Then, the holding means holds the tip end portion of the band via the fastener in a state where the tip end portion of the band is inserted into the fastener into which the base end side portion of the band is inserted. Therefore, by bending the guide plate along the outer periphery of the hoses and inserting the tip of the band into the insertion hole of the fastener, the tip of the band can be held by the fastener.

In the hose automatic bundling device according to the sixth aspect, basically the same operation as that of the fourth aspect can be obtained.
When the band is cut by the cutting mechanism on the proximal end side of the fastener in which the tip portion of the band is inserted, the automatic bundling work of automatically bundling one part of the hoses is completed. After that, the band can be fed to the guide plate so that the tip of the band projects slightly from the guide plate, and the next bundling operation can be started.

[0016]

According to the automatic hose binding device of the first aspect, the band supply means, the guide means, the holding means,
By providing the band withdrawing means, it is possible to automatically bundle the hoses scattered in a free state with the band.

According to the automatic bundling device for hoses according to the second aspect, basically the same effect as that of the first aspect can be obtained, but the guide means extends substantially straight in the first temperature state and has the second temperature. A shape memory alloy guide plate that changes into a curved shape along the outer peripheral portion of the hoses in the state, an electric heater for heating the guide plate, and a flexible fluid passage for circulating a fluid for cooling the guide plate. By providing the guide, the band can be curved along the outer peripheral portion of the hose together with the guide plate by a simple method of energizing the electric heater provided on the guide plate or circulating the cooling fluid in the fluid passage. Further, after the work of bundling the hoses is completed, the guide plate can be returned to the substantially straight shape by circulating the cooling fluid in the fluid passage or energizing the electric heater.

According to the hose automatic bundling device of the third aspect, basically the same effect as that of the second aspect can be obtained, but the band is integrally formed of a synthetic resin material into a long continuous body and Since the rack teeth are formed on the surface that becomes the outer peripheral side when bundling the hoses, the structure of the band supply means is simplified, and by using fasteners etc. that engage with the rack teeth of the band, the hoses It becomes possible to lock the band in which the bands are bundled together.

According to the hose automatic bundling device of the fourth aspect, basically the same effect as that of the third aspect can be obtained, but V grooves are formed on both end faces of the band, and the guide plate is provided with a V groove.
Since a plurality of clip tools for holding the band through the groove are provided, the tip side portion of the band can be held by the guide plate without impairing the deformability of the guide plate, and the tip side portion of the band can be held by the guide plate. By feeding along the band, it becomes possible to feed while holding the band with a plurality of clips.

According to the automatic hose bundling device of the fifth aspect, basically the same effect as that of the fourth aspect can be obtained, but in the state where the band is pulled back by the band pulling back means and the hoses are bound, the tip of the band is pulled. A fastener supplying means for sequentially supplying a large number of fasteners made of synthetic resin for fixing the portion and the corresponding band portion is provided, and the fastener is inserted so that the rack teeth are placed outside and the overlapping bands are allowed to pass. Since there are holes and locking claws that lock these rack teeth to prevent these bands from slipping out, the fastener's proximal end portion is passed through, and the tip of the band that wraps around the hoses. It is possible to fix the tip end portion of the band and the corresponding band portion by inserting the fastener into the insertion hole of the fastener. The holding means holds the tip of the band via the fastener. As described above, by effectively utilizing the band having the rack teeth and the fastener having the insertion hole and the locking claw, the hoses can be easily bundled and maintained in that state.

According to the hose automatic bundling device of the sixth aspect, basically the same effect as that of the fourth aspect can be obtained, but the band is cut at the proximal end side of the fastener into which the distal end portion of the band is inserted. Since the cutting mechanism is provided, the band can be automatically cut after bundling the hoses, and the bundling work of the hoses can be automated.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, after mounting various fittings on the body of the automobile, a plurality of hoses and harnesses (hereinafter referred to as hoses) are assembled between the engine and various fittings in the engine room. This is an example of the case where the present invention is applied to an automatic bundling device for automatically bundling these hoses.
As shown in FIG. 1, various outfittings are attached to a vehicle body 1, an engine 3 and other outfittings are also attached to an engine room 2, and the outfittings attached to the engine room 2. Many hoses have already been installed in between. The hose automatic bundling device 10 is attached to the hand 4a of the articulated robot 4, and the hose automatic bundling device 10 can perform automatic bundling work sequentially on a plurality of necessary parts of the hoses in the engine room 2. Done.

The hose automatic bundling device 10 will be described with reference to FIGS. The main body case 10A includes an upper case 11 made of synthetic resin and a lower case 12 made of synthetic resin, and a band 5 is provided at a base end portion of the main body case 10A.
The reel accommodating portion 14 for accommodating the reel 13 obtained by winding the continuous body of FIG. A band passage 15 is formed in the main body case 10A, and a fastener loading passage 16 for accommodating a large number of fasteners 6 made of synthetic resin is formed in the upper end portion of the main body case 10A. The band 5 and the fastener 5 are provided at the front end portion of the main body case 10A. 6 is formed with an opening 17 for extracting the main body case 1
An elongated thin plate-shaped guide plate 20 made of a shape memory alloy is fixed to the tip of 0A and extends horizontally in a straight line, and extends from the reel 13 of the reel accommodating portion 14 to the band passage 15.
The band 5 extending in the front direction through the guide plate 20 extends to the outside of the front end of the guide plate 20 along the upper surface of the guide plate 20.

At a position near the tip end side of the reel accommodating portion 14, a feed roller 21 having feed teeth made of synthetic resin and a band 5 are sandwiched in the middle of the band passage 15 to sandwich the roller 21.
And a pressing roller 22 made of rubber facing each other, the feed roller 21 is driven to rotate forward and backward by a stepping motor 23, and the band 5 can be accurately fed and driven both in the tip direction and in the opposite pulling direction. I am doing it. The structure of the band 5 and the fastener 6 will be described. As shown in FIGS. 6 and 8, the band 5 is a flat band-shaped member having a rectangular cross section, and is formed on the lower surface of the band 5 (on the outer peripheral side of the reel 13). Rack teeth 5a are formed, and continuous V grooves 5b are formed on both end surfaces of the band 5. The fastener 6
Form ribs 6b that are opposed to each other on the inner surface side of the upper wall portion and the inner surface side of the lower wall portion of the rectangular tubular fastener body 6a.
Insertion holes 6c are formed between the b portions to allow passage of the overlapped band 5, and the rack 5a of the band 5 is formed on the inner surface of the ribs 6b.
Locking claws 6d that engage with the
Is formed to be inclined toward the base end side, the band 5 can move relative to the fastener 6 in a state where one band 5 is inserted into the insertion hole 6c, but as shown in FIG. Since the rack 5a is locked by the locking claw 6d when the band 5 overlapped with the insertion hole 6c is inserted, the band 5 is movable in the proximal direction with respect to the fastener 6, but in the distal direction. Is immobilized.

The guide plate 20 has a first shape extending in a substantially straight shape as shown in FIG. 2 in a room temperature state (first temperature state), and is heated to, for example, about 150 ° C. (second temperature state). ), As shown in FIG. 10, so that the base end of the guide plate 20 is in contact with the tip end of the guide plate 20 by making one turn along the outer periphery of the hoses H scattered in a free state. It has a curved second shape. In the second shape, the tip of the guide plate 20 reaches the vicinity of the opening 17, and the tip of the band 5 slightly extending outside the tip of the guide plate 20 has the fastener 6 at the use position at the opening 17. It is in a state of being inserted into the insertion hole 6c, and is locked and held by the locking claw 5a.

Next, the guide plate 20 will be described. An electric heater 24 for heating is provided on the lower surface of the guide plate 20,
The electric heater 24 is divided into a plurality of parts in the lengthwise direction so that they can be independently energized, and the electric heater 24 is drive-controlled by a control unit (not shown). Further, an air passage 26 for circulating cooling air is formed on the lower surface side of the guide plate 20 by the heat resistant rubber film 25 covering the electric heater 24, and the tip of the air passage 26 is opened to the atmosphere, so that the main body case 10A. An air supply passage 28 for supplying air to the air passage 26 is formed at a lower end portion of the lower case 12 of the air introduction chamber 2.
9 is formed, the air introduction chamber 29 is connected to an air supply source 31 that supplies pressurized air cooled by an air pipe 30, and an electromagnetic opening / closing valve 32 is provided in the air pipe 30, and the electromagnetic opening / closing valve 32 is controlled by a control unit. Drive controlled.

Further, the guide plate 20 is provided with a plurality of clips 27 for holding the band 5. Each clip 27 is formed by bending a spring steel wire into a trapezoidal shape in plan view. The clips 27 are arranged on both sides of the guide plate 20 at predetermined intervals, and the lower ends of the pair of legs 27a of each clip 27 are fixed to the side end faces of the guide plate 20 so that the clips 27 engage with each other. The portions 27b are V-grooves 5 on both ends of the band 5.
The band 5 is configured to be held on the upper surface of the guide plate 20 by engaging with b. Next, the fastener supply mechanism and the fastener holding mechanism will be described. Regarding the fastener supply mechanism, the fastener loading passage 16 is a passage having a rectangular cross section capable of accommodating a large number of fasteners 6 in the posture shown in FIG. 8, and the proximal end side of the fastener loading passage 16 is opened to the fastener loading passage 16. Is loaded with a large number of fasteners 6 in series, a supply guide rod 36 having a rectangular cross section is inserted into the plurality of fasteners 6 from the outside, and a large number of fasteners 6 are slidably mounted on the supply guide rod 36. The base end side of the supply guide rod 36 is extended by a required length and is detachably fixedly held to a predetermined portion such as the most distal arm portion of the robot 4.

In the middle of the fastener loading passage 16,
A pair of feed rollers 37 made of rubber are provided, and these feed rollers 37 are synchronously driven by a stepping motor 38 via gears. A movable locking member 41 that locks the distal end of the fastener 6 and is driven by a solenoid type actuator 40 to step-feed the most advanced fastener 6 downward is provided at the distal end portion of the fastener loading passage 16. As shown, the movable locking member 41 has an upper wall 41a.
And a pair of side walls 41b, a tip wall 41c, and a pair of side walls 41b
From the pair of arm portions 41d extending in the proximal direction from the upper wall 41
A stopper 41e that rises upward from the base end of a is integrally formed. The middle portions of these arm portions 41d are pivotally supported by the pins 42 on the upper case 11, respectively.
The lower end of the lever at the base end of 1d is connected to the rod of the actuator 40, and when the solenoid of the actuator 40 is energized, the rod retracts, the movable locking member 41 swings downward, and the frontmost fastener 6 moves downward. Move to the use position,
At this time, the stopper 41e locks the subsequent fastener 6 so that the movable locking member 41 can be swung back. When the energization of the solenoid of the actuator 40 is stopped, the elastic locking force of the spring in the solenoid causes the movable locking member 41 to swing back to the locking position shown in FIG. This solenoid is driven and controlled by the control unit.

Regarding the fastener holding mechanism, the main body case 1
A movable holding member 43 is provided in the opening 17 at the front end of 0A, and a passage hole 43a that allows passage of the fastener 6 is formed in the central portion of the movable holding member 43 of the front view portal type.
An outwardly enlarged guide surface 43b is formed on three sides around 3a, and a receiving portion 43c is formed at the upper end of the movable holding member 43 to receive the upper end of the tip of the fastener 6 at the use position. The front end of the fastener 6 is received by the receiving portion 43c, and the base end thereof is the passage partition wall 44 of the lower case 12.
It is formed so as to approach and face the tip of the. Like the movable locking member 41, the movable holding member 43 has a pair of arm portions (not shown) at its midpoint pivotally supported by a pin on the lower case 12 and is vertically moved by a solenoid actuator (not shown). It is configured to be switchable between a locking position shown in FIG. 2 and an open position where it is slightly swung upward and disengaged from the fastener 6. However, when the solenoid is energized, the movable holding member 433 is swung upward.

Next, a cutting mechanism for cutting the band 5 at a position near the base end side of the fastener 6 at the above-mentioned use position will be described. As shown in FIG. 2, the cutting mechanism includes a cutting blade 45 located in the lower portion of the tip side portion of the main body case 10A.
Rocking lever 46 provided with, and a slidable cam member 4
7 and a solenoid type actuator 48, the cutting blade 45 is disposed close to the lower side of the band 5 in the vicinity of the base end of the fastener 6 in the use position, and the intermediate portion of the swing lever 46 is lowered by a pin 49. Swing lever 4 pivotally supported by case 12
The base end of 6 is inserted and engaged with the inclined cam hole 47a of the cam member 47, and the cam member 47 is fixed to the tip of the rod of the actuator 48. When the solenoid of the actuator 48 is not energized, the cam member 4 is
When the solenoid 7 is energized, the cam member 47 moves in the distal direction and the base end of the rocking lever 46 rocks downward. The cutting blade 45 swings upward to cut the band 5. When the energization of the solenoid is stopped, the rod retracts due to the elastic force of the spring in the solenoid, and the cutting blade 45 returns to the illustrated state. The solenoid of the actuator 48 is drive-controlled by a control unit.

The operation of the hose automatic bundling device 10 described above will be described. As shown in FIG. 2, when one of the fasteners 6 is set in the use position and the guide plate 20 is kept at the room temperature state and is held in the straight first shape, the motor 23 is driven to drive the band 5. When the band is sent out, the band 5 extends through the insertion hole 6c of the fastener 6 at the use position and extends toward the front end, and is advanced to the front end side while being sequentially clipped by the clip 27 of the guide plate 20. Band 5
When the drive of the motor 23 is stopped in a state where the leading end of the above has advanced about 10 mm ahead of the leading end of the guide plate 20, the state shown in FIG. 2 is obtained.

Next, as shown in FIG. 9, the robot 4 is actuated to move the guide plate 20 of the automatic bundling device 10 to a predetermined position in the engine room 2, and a plurality of scatter freely scattered. When the hose H is brought close to the lower side in the transverse direction with respect to the hose H, the state shown in FIG. 9 is obtained. next,
When the electric heater 24 is energized for a predetermined time sequentially with a slight time difference from the electric heater 24 on the front end side of the guide plate 20, the guide plate 20 starts to be heated from the front end side, and the guide plate 20
As the temperature of the hose reaches about 150 ° C., the shape of the two-dot chain line, the shape of the three-dot chain line, and the shape of the four-dot chain line of FIG. It is deformed by bending, and finally reaches the second shape (see FIG. 10) indicated by the four-dot chain line so that the tip of the guide plate 20 aligns and approaches the position near the tip side of the movable holding member 43 and the tip of the band 5 moves. Guided by the guide surface 43b of the holding member 43, it is inserted into the passage hole 43a and the insertion hole 6c of the fastener 6 at the use position, and the tip end of the band 5 becomes the locking claw 6d of the fastener 6 as shown in FIG. It is locked like a stopper.

Next, when the electromagnetic on-off valve 32 is opened and the cooled air is supplied to the air passage 26 at a considerable flow rate and is discharged from the tip to the atmosphere, the electric heater 24 and the guide plate 20 are separated. Since it is cooled rapidly, the guide plate 20 gradually extends, and when the guide plate 20 reaches a substantially normal temperature state,
As shown in FIG. 11, the guide plate 20 has a straight first shape.
Return to shape. At this time, the plurality of clips 27 are elastically deformed according to the deformation of the guide plate 20, and the V groove 5b of the band 5 is formed.
It comes off in sequence. It is assumed that the supply of air is stopped after a predetermined time has passed or after the guide plate 20 returns to the first shape. Next, when the motor 23 is rotationally driven in the opposite supply direction for a predetermined time, the proximal end portion of the band 5 is pulled back through elastic deformation of the locking claw 6d of the fastener 6 at the use position.
As shown in FIG. 11, the hoses H are bundled, and the bundled hoses H are drawn near the tip of the main body case 10A, and both the front end and the base end of the band 5 are fastened to the fastener 6 as shown in FIG. The locking claw 6d locks it in a retaining shape. still,
When the band 5 is pulled back and bundled, if the hand 4a of the robot 4 is moved to the front end side by a predetermined distance, an unreasonable force does not act on the hoses H. Further, when the motor 23 is driven in the opposite supply direction, after the hoses H are sufficiently bundled, the rack 5a of the band 5 and the teeth of the feed roller 21 and the elastic pressing roller 22 are elastically deformed to the band 5. Feed roller 21
Since the gap is in a slip state, the bundles can be bundled properly. When this slip state occurs and the torque of the motor 23 begins to increase, the motor 23 is stopped thereafter.

Next, the solenoid of the actuator 40 of the cutting mechanism is energized to cut the band 5 with the cutting blade 45,
Next, when the solenoid of the actuator for driving the movable holding member 43 is energized to drive the movable holding member 43 upward, that is, to the open position, the locking of the fastener 6 by the movable holding member 43 is released. As described above, the band 5 in which the hoses H are bundled and the fastener 6 that binds the band 5 are removed from the main body case 10A, and the hoses H
Will be bundled in one place. Following this,
The motor 38 for supplying the fastener 6 is driven by a predetermined step (corresponding to feeding one fastener 6), the solenoid of the actuator 40 of the fastener supplying mechanism is energized, and the movable locking member 41 is driven downward. The fastener 6 on the most distal side to the use position, and then the motor 23 is driven to rotate in the feed direction by a predetermined number of rotations to feed the band 5 for a predetermined length and the insertion hole 6c of the fastener 6 in the use position.
Is inserted and sent out toward the guide plate 20, and the state shown in FIG. 2 is obtained. By the above, the bundling work for bundling one place of the hoses H is completed. Hereinafter, in the same manner, the automatic bundling work for the next bundling point is executed.

Next, the following partial modifications may be added to the above embodiment. [1] Regarding the guide plate 20, the second temperature state is about 150 ° C.
However, the temperature may be set to other temperature depending on the type of the shape memory alloy to be applied, or the first shape may be set in the heated state and the second shape may be curved in the normal temperature state. . Further, the guide plate 20 is not limited to the shape memory alloy and may be made of bimetal. In addition, the guide plate 20
May have a slightly curved shape that is gentle in the first shape. [2] The rack 5a of the band 5 may be positioned inside the reel 13 of the band 5, or the band 5 may be supplied from the outside of the automatic bundling device 10. Further, as the band 5, it is also possible to apply a flexible band made of metal. [3] The fastener 6 is omitted, and a heat fusion means is provided in place of the fastener 6, and the tip of the band 5 and the corresponding base end side portion of the band 5 are fixed by heat fusion. Good. [4] The automatic hose bundling device 10 can be applied to automatically bunch the hose H in the process of preparing the hose H before assembling the hose H to an article. Besides, it can also be applied to automatic bundling of harnesses and the like at electric product manufacturing factories. Further, the hose automatic bundling device 10 does not necessarily have to be mounted on the robot 4 for use, and can be configured as a dedicated automatic bundling device.

[Description of Drawings]

FIG. 1 is a perspective view of an automobile body, a robot, and an automatic bundling device for hoses.

FIG. 2 is a vertical cross-sectional view of the tip side portion of the automatic hose binding device.

FIG. 3 is a vertical sectional view of a base end side portion of the automatic hose binding device.

FIG. 4 is a cross-sectional plan view of the tip side portion of the automatic hose binding device.

FIG. 5 is a plan view of a main part of a guide plate and a band.

6 is a view from arrow 6 of FIG.

FIG. 7 is a side view of a movable locking member and an actuator.

FIG. 8 is a vertical sectional view of a band and a fastener.

FIG. 9 is an operation explanatory diagram when bundling the hoses with the automatic hose bundling device.

FIG. 10 is an operation explanatory view when bundling the hoses with the automatic hose bundling device.

FIG. 11 is an operation explanatory diagram when bundling the hoses with the automatic hose bundling device.

FIG. 12 is an operation explanatory diagram when bundling hoses with the automatic hose bundling device.

[Explanation of symbols]

5 bands 5a rack 6 Fasteners 6c insertion hole 6d locking claw 10 Automatic hose bundling device 10A body case 15 band passage 16 Fastener loading passage 17 openings 20 information board 21 Feed roller 22 Presser roller 23 Stepping motor 24 Electric heater 25 rubber film 26 Air passage 27 clips 28 Air supply passage 30 air pipes 31 Air supply source 32 solenoid valve 40 actuators 41 Movable locking member 43 Movable holding member 45 cutting blade 46 Arm part 47 Cam member 48 actuators

Claims (6)

[Claims] 1. An automatic bundling device for hoses that bundles a plurality of hoses and / or harnesses with a flexible band, and a band supply means for supplying a band that bundles the plurality of hoses, and a tip of the band supply means. Guide means attached to the portion for guiding the band so as to receive the band supplied from the band supply means and make at least one turn along the outer periphery of the region where the plurality of hoses exist in a free state. Holding means for holding the tip of the band via the outer peripheral portion of the band in the vicinity of the base end side portion of the band, and the base end side portion of the band after being held by the holding means is pulled back in the returning direction to fix the hoses with the band. An automatic bundling device for hoses, comprising a band pulling-back means for bundling. 2. The guide plate made of a shape memory alloy, wherein the guide means extends substantially straight in a first temperature state and curves along an outer peripheral portion of a region where the hoses are present in a second temperature state, The hose according to claim 1, further comprising an electric heater attached to the guide plate, and a flexible fluid passage formed along the guide plate for allowing a cooling fluid to flow therethrough. Automatic bundling device. 3. The band is integrally formed of a synthetic resin material in a long continuous body, and has rack teeth formed on a surface portion which is an outer peripheral side when hose are bundled. Item 2. An automatic bundling device for hoses according to Item 2. 4. The band according to claim 3, wherein the band has V grooves on both end surfaces thereof, and the guide plate has a plurality of clip members for holding the band via the V grooves. Automatic bundling device for hoses. 5. A fastener made of synthetic resin for fixing the tip of the band and the corresponding band portion in a state where the band is pulled back by the band pulling-back means and the hoses are bundled, and the rack teeth are set outside. A fastener supply means for accommodating and sequentially supplying a large number of fasteners having insertion holes that allow passage of the stacked bands and locking claws that lock these rack teeth and restrict the removal of these bands is provided. The holding means holds the distal end portion of the band via the fastener in a state where the distal end portion of the band is inserted into the fastener into which the proximal end side portion of the band is inserted. Automatic bundling device for hoses. 6. The automatic bundling device for hoses according to claim 5, wherein a cutting mechanism for cutting the band is provided on the proximal end side of the fastener in which the distal end portion of the band is inserted.