JPH04136226A - Method and device for continuously winding up cord - Google Patents

Abstract

PURPOSE:To wind up a cord in a good winding appearance without relating to the diameter of the cord by detecting the rotation rate of a winding bobbin and feeding the cord to the winding bobbing at a pitch corresponding to the diameter of the cord in the axial direction of the winding bobbin in connection with the rotation of the winding bobbin. CONSTITUTION:The rotation number of the clutch shaft 14 of a rotation-driving means 17 rotating the bobbin shafts 2A, 2B of winding bobbins 1A, 1B at a constant rate is measured with a proximity switch 18, and a stepping motor for driving a traverse pulley on the basis of cord-setting signals depending on the rotation rate and on the kind of the cord is controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for continuously winding a wire rod such as a cord that serves as the core of a belt.

(Prior art) Since the diameter of wire rods such as cords used as core bodies of power transmission belts differs depending on the type, automatic winding machines for such wire rods have to adjust the diameter of the wire rods in order to improve the winding appearance. It is necessary to wind it onto a winding bobbin according to the diameter.

Therefore, in the past, the winding pitch on the winding bobbin was adjusted by changing the feed speed of a feeding means (for example, a traverse pulley) that feeds the wire rod in the axial direction of the winding bobbin, or mechanically adjusting the winding pitch on the winding bobbin. The winding pitch was matched by extracting the rotational driving force from the rotational drive system and changing the burr ratio.

(Problem to be solved by the invention) However, in the former case, it is necessary to change the feed rate not only depending on the diameter of the wire rod but also the speed at which the wire rod is fed to the automatic winder. Speed control becomes complicated. In addition, in the latter case, since the pulley ratio etc. must be changed, the automatic winding machine must be stopped and the pulleys etc. replaced each time the wire rod is changed, which is a laborious and necessary replacement work. Therefore, the entire mechanism becomes complicated.

The present invention has been made in view of the above points, and an object of the present invention is to provide an automatic wire winding method and device capable of winding a wire with a good winding appearance regardless of the diameter of the wire. be.

(Means for Solving the Problem) The invention of claim (1) directly or indirectly detects the rotation of a winding bobbin on which a wire such as a cord serving as the core of the belt is wound, and detects the rotation of the winding bobbin. The wire rod is fed in the axial direction of the winding bobbin at a pitch corresponding to the diameter of the wire rod in conjunction with the rotation of the bobbin.

The invention of claim '2J is a device for continuously winding a wire rod such as a cord serving as a core of a belt, which comprises a winding bobbin on which the wire rod is wound, and a bobbin shaft of the winding bobbin. A rotation drive means that rotates at a constant speed, a rotation detection means that directly or indirectly detects the rotation of the bobbin shaft, and a winding device that receives a signal from the rotation detection means and winds the wire in relation to the rotation of the winding bobbin. The wire rod is configured to include a feeding means for feeding the wire rod in the axial direction of the bobbin at a pitch corresponding to the diameter of the wire rod.

(Operation) According to the invention of claim (1), the rotation of the winding bobbin on which the wire is wound is detected directly or indirectly, and the axis of the winding bobbin is detected in relation to the rotation of the winding bobbin. in the direction of
The wire rod is sent with a pitch corresponding to the diameter of the wire rod.

According to the invention of claim (2), the rotation of the winding bobbin on which the wire is wound is detected directly or indirectly by the rotation detecting means, and in relation to the rotation of the winding bobbin, the feeding means The wire is fed in the axial direction of the winding bobbin at a pitch corresponding to the diameter of the wire.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

In Figures 1 and 2 showing the overall configuration, IA, IB
are first and second winding bobbins, which are coaxially arranged in parallel. The first and second take-up bobbins IA, IB have flange portions 1a, la, lb, lb, and bobbin shafts 2A, 2B.
It is attached and fixed to flanges 2a and 2b formed in , with screws 3 and 3.

The ends of the bobbin shafts 2A and 2B are inserted into the casing 4A4B and rotatably supported, and the end is connected to a synchronized pulley on the driven side (40 teeth, only the synchronized pulley 5 inside the casing 4A is shown). is installed and fixed. This synchronized pulley 5 on the driven side is linked to a synchronized pulley 7 on the drive side via a synchronized belt 6. The end of the bobbin shaft 8 of the synchronized pulley 7 on the drive side is inserted into another casing 11 and rotatably supported via a bearing 12a, and the end is connected to the first clutch means 13.
It can be connected to the clutch shaft 14 via A. The clutch shaft 14 is rotatably supported by two bearings 15a and 15b near the center of the casing 11, and a synchronized pulley 16 (60 teeth) linked to a drive means (not shown) is fixedly attached. has been done. In this way, the bobbin shaft 2A (2B) of the winding bobbin IA (IB)
) at a constant speed. Note that a first proximity switch 18 that detects one rotation of the clutch shaft 14 is disposed near the clutch shaft 14.

Similarly, a bobbin shaft 19 can be connected to the opposite side of the clutch shaft 14 via another second clutch means 13B, and the driving force is applied to the second take-up bobbin IB by a similar mechanism.
is configured to communicate.

Further, a threaded rod 21 is arranged so as to be parallel to the axes of the first and second winding bobbins IA and IB, and the threaded rod 21 connects a coupling 23 to a motor shaft 22a of a stepping motor 22. connected via. Threaded rod 21
A base 24 is movably screwed into the base 24, and a traverse pulley 25 is provided around which a cord S as a wire is wound and guided in a predetermined direction. This constitutes the feeding means 26.

Further, an engaging portion 31 is provided protruding from the base 24 of the traverse boot 925, and the engaging portion 31 is movably engaged with a guide rail 32 disposed on the rear side of the threaded rod 21. . As a result, the base 2 of the traverse pulley 25
4 moves along the threaded rod 21 without rotating.

Also, near the threaded rod 21, second to fifth proximity switches 27A, 27B, 27C are provided corresponding to both ends of each bobbin IA, IB (near the flange portions 1a, la, lb, lb).
, 27D are provided to change the moving direction of the traverse pulley 25 (the feeding direction of the cord S).

Further, a limit switch 33 is disposed at an intermediate position between the winding bobbins IA and IB to detect which winding bobbin IA or IB has the cord S wound thereon.

The stepping motor 22 is controlled by a stepping motor controller 35 via a driver 36. Digital switch for code setting 3
The control section 38 receives the code setting signal from the stepping motor controller 35 and the rotation signal from the first proximity switch 18.
is designed to be controlled.

Next, the flow of control of the above device will be explained.

First, when starting control, the type of code S is set using the code setting digital switch 37 (step S1).

Based on this, the control unit 38 calculates the feed pitch and controls the stepping motor 22 based on the result (step S2).

Then, it is determined whether or not there is a rotation signal from the first proximity switch 18 (step S3). If there is a rotation signal, the clutch shaft 14 has made one rotation, so the traverse pulley 28 is pitch-fed accordingly. (Step S4
). On the other hand, if there is no rotation signal, the standby state is maintained without pitch feeding.

Specifically, for example, the clutch shaft 14 and the first winding bobbin I
Since the bobbin shaft 2A of A is linked with the synchro belt 6 and the synchro pulley 5.7, the rotational relationship between the two bobbin shafts and the clutch shaft 14 is 25/45-0. It becomes 625.

If diameter 1. Assuming you are winding up the OI layer code,
When the clutch shaft 14 rotates once, the bobbin shaft 2A rotates 0.6
Since it will rotate 25 times, the traverse pulley 28 pitches the coil by IXo, 625-0.625 (@i) in the axial direction of the winding bobbin 2A.

The feed pitch for each type of code is set in advance by the type of code S in the stepping motor controller 35 by setting the type of code S by the digital switch 37 for code setting and inputting it to the control unit 38. A feed pitch corresponding to the type of code S is selected from among the stored feed pitches, and the code S is sent at that feed pitch.

With the above configuration, the feed pitch of the cord S can be changed each time the diameter of the cord S is changed without creating an electrically or mechanically complicated structure, so that the winding bobbin I
The winding appearance of code S to A and IB also improves.

Further, the feed pitch can be easily changed using the digital switch 37 for code setting, and if the type of code S is selected using the digital switch 37, the feed pitch of code S is automatically set. .

In the above embodiment, the first proximity switch 18 for detecting one rotation of the clutch shaft 14 is connected to the bobbin shafts 2A, 2B1.
．． : On the other hand, if the rotation of the bobbin shafts 2A and 2B is directly detected, the ratio as described above (0, 62
Although there is no need to consider 5), the proximity switch is used for the first and second take-up bobbins IA.

Since two are required for each IB, the clutch shaft 14 is detected.

(Effect of the invention) As described above, the invention of claim (1) is such that the wire rod is fed in the axial direction of the winding bobbin according to the rotational speed of the winding bobbin, so that the wire rod is not easily fed to the winding bobbin. The winding appearance improves.

The invention of claim (2) is simple because, as described above, the control means feeds the wire in the axial direction of the take-up bobbin according to the rotation speed of the take-up bobbin detected by the rotation detection means. With this structure, the wire rod can be wound onto the winding bobbin with a good winding appearance.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, FIGS. 1 and 2 are a plan view and a partial partial view of the automatic winding device, FIG. 3 is a block diagram of the control system, and FIG. 4 shows the flow of control. FIG. lA, IB... Winding bobbins 2A, 2B... Bobbin shaft 16... Rotation drive means 18... First proximity switch 26...-・Feeding means S... Code (rotation detection means)

Claims (2)

[Claims] (1) Directly or indirectly detects the rotation of a take-up bobbin on which a wire such as a cord, which is the core of the belt, is wound, and detects the rotation of the wire in the axial direction of the take-up bobbin in relation to the rotation of the take-up bobbin. A method for continuously winding a wire rod, characterized in that the wire rod is fed at a pitch corresponding to the diameter of the wire rod. (2) A device for continuously winding a wire rod such as a cord that serves as the core of a belt, which includes a winding bobbin on which the wire rod is wound, and a rotation device that rotates the bobbin shaft of the winding bobbin at a constant speed. a driving means; a rotation detecting means for directly or indirectly detecting the rotation of the bobbin shaft; and receiving a signal from the rotation detecting means to move the wire in the axial direction of the winding bobbin in relation to the rotation of the winding bobbin. 1. A continuous winding device for a wire rod, comprising: a feeding means for feeding the wire rod at a pitch corresponding to the diameter of the wire rod.