JPH0152309B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for winding up a string-like material that is easily deformed by external force, such as an unvulcanized rubber hose extruded using an extruder, into a spiral shape.

The present applicant proposed a device for winding the string-like material in Japanese Patent Publication No. 52-263. In this device, the string supply device and the winding device are all configured to be mechanically interlocked, so that the winding device is able to wind the string in order to cope with the slippage of the string in the string supply device. It is difficult to adjust the winding speed, and when changing the winding pitch in response to changes in the thickness of the string-like material, it depends on replacing gears, so the winding pitch should be set arbitrarily. There were drawbacks such as the inability to Unvulcanized rubber hoses have problems such as shrinkage during cooling after being extruded from an extruder, and especially in the case of small diameter hoses, slipping on the string supply device is greater than in large diameter hoses. .

The present invention solves these problems and allows the string-like object to be wound correctly in a spiral shape without crossing each other, and the winding pitch can be freely and easily changed to correspond to the thickness of the string-like object to be wound. The purpose is to provide a winding device that can be used for winding.

In order to obtain such a winding device, the present invention has the following steps:
This is a configuration of a loose winding device as set forth in the claims.

Referring to a diagram showing an embodiment of the present invention, reference numeral 1 denotes a rail, and a cart 3 is provided so as to be able to reciprocate on the rail 1 with wheels 2. On trolley 3,
A rotating shaft 4 protrudes upward from the cart 3 and stands upright on the cart 3.
is supported. A disk 5 is fixed and fixed concentrically to the upper end of the rotating shaft 4. A winding plate 6 is removably placed on the disc 5 and is formed so that it can be placed and rotated together with the disc 5.

The rotating shaft 4 is rotated by a rotating shaft driving motor 7 provided on the cart 3 via a bevel gear or the like. A screw shaft 9 is provided on the lower surface of the truck 3 so as to extend in the direction of movement of the truck 3 so that both ends thereof extend outside the reciprocating range of the truck 3 and do not move in the axial direction. Trolley 3
A nut having a female thread fitted onto the screw shaft 9 is fixed to the screw shaft 9, and the screw shaft 9 is rotated by a cart drive motor 8 provided outside the cart 3, so that the cart 3 can be reciprocated along the rail 1. It's like this.

A string-like material supply device 10 is provided on the side of the trolley 3. In this device 10, a string-like material 14 is sandwiched between two upper and lower caterpillars 12 and 13 which are rotated by a drive motor 11, and is directed toward a winding tray 6 placed on a disc 5. The string-like material 14 can be fed out by the string, and the distance between the upper caterpillar 13 and the lower caterpillar 12 can be adjusted depending on the thickness of the string-like material. Reference numeral 15 denotes a conveyor belt provided to supply the string-like material 14 from the string-like material supply device 10 onto the winding plate 6 at a fixed position, and a drive motor 11 that drives the string-like material supply device 10 . It is designed so that it can be rotated by. Reference numeral 16 denotes a string-like material supply speed detector provided in conjunction with the drive motor 11, and is configured to output a string-like material supply speed signal V. Reference numeral 17 denotes a pulse transmitter which emits one pulse each time the carriage moves by a unit movement amount, for example 1 mm, by the rotation of the screw shaft 9. Reference numeral 18 denotes a control device that controls the rotary shaft drive motor 7 and the trolley drive motor 8, and controls the supply device of the string material 14 from the string material supply device 10 to the winding tray 6 from the center of the winding tray 6. radius R of
(or diameter) is calculated from the number of pulses input from the pulse transmitter 17, the speed signal V from the string material supply speed detector 16, the set winding pitch P, and the set string material supply speed correction coefficient K (Determined experimentally for each product. For rubber hoses -0.1
~+0.1), calculate the rotational speed N of the rotating shaft 4 every moment using the formula N=(1+K)V/2πR, and adjust the rotating shaft drive motor 7 according to this relationship.
At the same time, the trolley moving speed T
is calculated every moment using the formula T=RN, and the rotational speed of the trolley drive motor 8 is controlled according to this relationship.

There are two ways to wind the material: one is to wind it from the outside to the inside, and the other is to wind it from the inside to the outside.It is also possible to do both in succession. The radius at the beginning of winding r ₁ when winding from the outside to the inside and the radius at the beginning of winding r ₂ when winding from the inside to the outside
is stored in the control device 18. The device for feeding the string-like material 14 onto the winding plate 6 has a winding start radius r ₁ or r ₂
When _the trolley 3 is moved to the position shown in _FIG .
, and the number n of pulses from the pulse oscillator 17 from the beginning of winding to calculate R=r ₁ -n or R=r ₂ +n.

When winding from the outside to the inside, the screw shaft 9 rotates in a direction where the winding radius R becomes smaller, and the rotational speed N of the rotating shaft 4 must gradually increase.
The opposite is true when wrapping from the inside to the outside. In order to satisfy this relationship, the controller 18 sets N=(1+K)
The rotational speed of the rotating shaft 4, which must be changed every moment, is calculated using the formula V/2πR, and the control device 18 controls the rotational speed of the rotating shaft drive motor 7 so that the rotational speed of the rotating shaft 4 becomes N. It's becoming like that. On the other hand, in order to wind the string-like material 14 at an equal pitch, the trolley 3 is moved at a moving speed T proportional to the winding pitch P selected depending on the thickness of the string-like material 14 per rotation of the rotating shaft 4. There is a need. Therefore, this winding pitch P is given to the control device 18 as a constant, and the control device 18 calculates T=PN so that it is proportional to the rotational speed N of the rotating shaft 4 and the winding pitch P, for example, every second. The moving speed of trolley 3 is T
The rotational speed of the trolley drive motor 8 is controlled so that

In the embodiment shown in the figure, a fast-forwarding motor 19 consisting of an induction motor is provided on the carriage 3, and is configured to rotate a female-threaded gear to rapidly feed the carriage 3 to the winding start position. As the rotary shaft drive motor 7 and the trolley drive motor 8, servo motors that are easy to control are used.

The winding pitch P and the string correction coefficient K corresponding to the thickness of the string 14 are input as constants to the control device 18, the cart 3 is moved to the winding start position, and the string is placed on the winding plate 6. 14 and control device 18
If a winding start command is given to , according to the above relationship,
The string-like material 14 can be spirally wound on the winding plate 6 at an equal pitch. At the end of winding, when R matches the above-mentioned r ₁ or r ₂ set in the control device 18, after winding the string material for one round at a constant rotational speed, the rotary shaft driving motor and It is also possible to stop the trolley drive motor 8. Also, a trolley 3 is provided on the side of the string-like material supply device 10.
When one trolley approaches the end of winding,
A signal from a separately installed limit switch causes
The string material 14 is cut between the string material supply device 10 and the conveyor belt 15, the cut end is wound onto the winding tray 6, the lower end of the conveyor belt is lifted, and the end is directed toward the winding tray of the other truck. It is also possible to lower the cart to start winding, and replace the winding plate on one of the carts with an empty one. Furthermore, the control device 18 can be used to repeat the winding from outside to inside to outside, or by moving the cart, a dog provided on the cart operates a limit switch and outputs a switching signal to control the winding from outside to inside to outside. You can also wind it repeatedly. The cart driving motor 8 can be provided on the cart 3 to move the cart 3, and the pulse transmitter 17 can generate pulses by the axis of the wheels 2 or the movement of the cart on the rail 1. It can also be configured as

According to the device of the present invention, a pulse transmitter that transmits the unit movement amount of the cart as a pulse is provided, and the control device calculates the winding radius from time to time based on the number of pulses from the pulse transmitter, and the string material supply device The rotation speed of the rotary shaft drive motor is controlled to rotate the rotary shaft so that the supply speed of the string material from the winding radius matches the peripheral speed at the winding radius, and at the same time, the rotation speed of the rotary shaft and the winding Since the cart is moved in proportion to the pitch, the calculator and software used in the control device are simple and the device can be formed at low cost, and the thickness of the string can be changed during use. The winding pitch associated with this can be easily changed, and the string-like material can always be spirally wound at the same pitch.

[Brief explanation of drawings]

The drawing is an explanatory diagram of one embodiment of the device of the present invention. DESCRIPTION OF SYMBOLS 1... Rail, 2... Wheel, 3... Dolly, 4... Rotating shaft, 5... Disc, 6... Winding plate, 7... Rotating shaft drive motor, 8... Dolly driving motor, 9... Screw shaft, 1
0...String material supply device, 11...Drive motor, 1
2, 13... Catapillar, 14... String-like object, 15...
Conveyor belt, 16...String material supply speed detector,
17...Pulse transmitter, 18...Control device.

Claims (1)

[Scope of Claims] 1. A cart movable on rails, a motor for driving the cart, a rotating shaft supported upright on the cart, a disk fixed to the upper end of the rotating shaft, and a circular disk mounted on the disk. A winding tray formed to be able to rotate together with the plate, a motor for driving the rotating shaft, a string-like material supplying device that is placed on the side of the cart and feeds the string-like object while holding it in the winding disk on the disk, A string material supply speed detector connected to the drive motor of the material supply device, a pulse transmitter that transmits a unit movement amount of the cart as one pulse, and a string material supply speed detector connected to the drive motor of the material supply device; Calculate the supply position as the radius R (or diameter) from the center of the winding plate by the number of pulses from the pulse generator, input the speed signal V from the string-like material supply speed detector and the set winding pitch P, N=(1+K)V/2πR, T=NP where K: String material supply speed correction coefficient, N: Rotating shaft rotation speed, π: Pi, T: Carriage moving speed, according to the following relationship: and a control device that simultaneously controls a bogie drive motor.