JP2004238167A - Under roll type taking-up/paying-out device and loading/unloading method of drum - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact and inexpensive under roll type take-up/paying-out device capable of performing loading/unloading of a drum and take-up/paying-out of a linear body onto the drum smoothly and safely. <P>SOLUTION: This under roll type take-up/paying-out device is composed of two kinds of under rolls including the small diameter under roll 1 provided at a fixed position and capable of rotating and driving and the large diameter under roll 2 movable in the direction of right angle to a rotary shaft. The drum is smoothly and safely loaded by moving the large diameter under roll 2, and the drum is smoothly discharged by pressing in the large diameter under roll 2 until it comes into contact with the small diameter under roll 1 by an air cylinder 5. The small diameter under roll 1 is rotated and driven to wind the linear body around the drum and unwind the linear body out of the drum. The drum is conveyed while loaded in a condition in which rotation of the under roll is stopped by a travel means attached to a device main body. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an under-roll type winding / unwinding device for winding and unwinding a linear body such as a cable by placing a drum on a rotating roll, and a method for mounting and discharging a drum.
[0002]
[Prior art]
Conventional under-roll type winding / unrolling devices are composed of under-rolls having the same diameter, and variously sized drums are changed by changing the mounting position of the under-roll discontinuously according to the size of the drum placed on the under-roll. Can be mounted. The drum placed on the under roll is rotatable, and the linear body wound around the drum is fed, and the drum is rotated by rotating the under roll connected to the driving device to wind the linear body. It is widely used for winding and unwinding of a linear body such as a cable (for example, see Patent Document 1). FIG. 3 is a plan view of a conventional under-roll type winding and feeding device, and FIG. 4 is a side view of the same. 3 and 4, the under-roll rotation driving device is not incorporated.
[0003]
In FIG. 3, four underrolls 51 having the same diameter are rotatably attached to the four corners of the underroll-type winding / unrolling device 50, and two opposing underrolls 51 (in FIG. Of the under roll 51) has the same rotation axis. By placing the drum on these underrolls 51, the two flanges of the circular shape of the drum are supported by the two underrolls 51 at a predetermined interval by point contact, thereby enabling rotation.
In FIG. 4, one set of the attachment portions 52 for the under roll 51 is provided at three places. By changing the attachment portion 52 of the under roll 51, drums of various sizes can be placed.
[0004]
[Patent Document 1]
JP-A-2002-255454
[Problems to be solved by the invention]
However, in the case of a conventional under-roll type winding / unwinding device, when the weight of the drum is heavy, the drum must be replaced using a crane or a forklift, and it is difficult to use the drum in a narrow work place. .
The present invention has been made in view of the above-mentioned circumstances, and it is possible to load and unload a drum without using a crane or a forklift, and furthermore, an under-roll-type winding / unwinding device that can move while the drum is mounted, and a drum mounting and discharging device. It is an object to provide a discharge method.
[0006]
[Means for Solving the Problems]
To solve this problem,
The invention according to claim 1 is an under-roll-type winding / unwinding device that winds and unwinds a linear body such as a cable by mounting a drum on a rotating roll. An under-roll type winding / unwinding device comprising two types of rolls, large and small.
[0007]
The invention according to claim 2 is the underroll-type winding device according to claim 1, wherein, among the underrolls, a large-diameter underroll is provided so as to be movable in a direction perpendicular to a rotation axis thereof.・ It is a feeding device.
[0008]
According to a third aspect of the present invention, there is provided the under-roll type winding / unwinding device according to the first and second aspects, wherein the two types of under-rolls have a rotation stopping mechanism.
[0009]
The invention according to claim 4 is characterized in that the underroll rotation stopping mechanism is a method for stopping the electric motor for a small diameter underroll and a method using a rotation stopping pin for a large diameter underroll. Item 4. An under-roll type winding / unwinding device according to Item 3.
[0010]
According to a fifth aspect of the present invention, there is provided the under-roll type winding / unwinding device according to any one of the first to fourth aspects, wherein a moving means is provided on the apparatus main body.
[0011]
The invention according to claim 6 is an underroll-type winding / unrolling device in which the drum is placed on the contacted small-diameter underroll and large-diameter underroll, and then the large-diameter underroll is pulled back to a predetermined position. A drum mounting method, wherein the drum is mounted on a drum.
[0012]
The invention according to claim 7 is a drum discharging method, wherein a drum is taken out from an underroll-type winding / unwinding device by bringing a large diameter underroll into contact with a small diameter underroll.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an under-roll type winding / unwinding device according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. It should be noted that the present invention is not limited to the following embodiments, and various modifications are possible.
FIG. 1 is a side view of an under-roll type winding / unwinding apparatus according to an embodiment of the present invention, and FIG. 2 is a plan view of the same. In FIGS. 1 and 2, the two types of large and small underrolls each consist of one roll, but the two types of large and small rolls are each composed of a pair of rolls divided at the position where the flange of the drum abuts. But it's fine.
[0014]
In FIG. 1, the mounting position of the small-diameter under-roll 1 is fixed, and the small-diameter under-roll 1 is connected to an electric motor 3 via a driving chain 4 so as to be rotatable. The large-diameter under roll 2 is movable in a direction perpendicular to the rotation axis (horizontal direction in FIG. 1) by two air cylinders 5 arranged adjacent to each other.
[0015]
Sprockets 6 are attached to both ends of the large-diameter underroll 2, and two guide chains 7 are provided in parallel with the small-diameter underroll 1 at positions where the sprockets 6 are fitted. I have. As a result, the large diameter underroll 2 moves in parallel with the small diameter underroll 1 when its axis 8 (not rotating) is pushed by the air cylinder 5.
[0016]
When the center point and the radius of the drum to be placed are A and r ₀ , the center point and the radius of the small-diameter underroll are B and r ₁ , respectively, and the center point and the radius of the large-diameter underroll are C and r ₂ , respectively. When the large-diameter underroll moves in the horizontal direction and comes into contact with the small-diameter underroll, the loaded drum is discharged under such a condition that the center point (center of gravity) of the drum passes through the central point of the small-diameter underroll. Must be on the side opposite to the large diameter roll from the vertical. That is, in the triangle ABC formed by the center point of the drum and the large and small underrolls, the angle ABC must be obtuse, so that the equation (1) is derived.
[0017]
r ₂ > r ₁ (r ₀ + r ₁ ) / (r ₀ −r ₁ ) (1)
However, r ₀ is the radius of the drum to be placed, r ₁ is the radius of the small-diameter under-roll, r ₂ is of large-diameter under roll radius.
[0018]
The rotation of the small-diameter underroll 1 is stopped by turning off the power of the electric motor 3, and the rotation of the large-diameter underroll 2 is stopped by inserting the rotation stop pin 9. For example, a caster or the like adapted to the weight of the drum to be mounted is attached to the bottom of the main unit 10 of the under-roll type winding / unrolling device as a moving means 11 so that the drum can be moved with the drum mounted or empty. Is possible.
[0019]
Next, the method of placing the drum, the method of winding the linear body on the drum, the method of unwinding the linear body wound on the drum, and the method of discharging the drum using the under-roll type winding / unwinding device A method of transporting the drum by the under-roll type winding / unwinding device will be described.
[0020]
When the drum is to be mounted on the present under-roll type winding / unwinding device, the drum is previously placed on a drum temporary placing table (not shown) having a height substantially equal to that of the main body of the under-roll type winding / unwinding device. And put it. The drum can be linearly rolled in a desired direction by a drum rolling guide (not shown) arranged on the temporary drum support. Next, the present underroll-type winding / unwinding device is placed adjacent to the drum temporary mounting table so that the direction of rotation of the drum and the direction in which the drum is mounted on the present underroll-type winding / unwinding device match. The large-diameter underroll 2 is moved to a position where it comes into contact with the small-diameter underroll 1 by being pushed in with the air cylinder 5 after or before the drum temporary placing table.
After the above preparations are completed, the drum is rolled and rolled along the drum rolling guide by human power or the like, and when the drum comes into contact with the large-diameter underroll 2, the air cylinder is gradually pulled back to a predetermined position. The distance between the small-diameter underroll 1 and the large-diameter underroll 2 is widened, and the drum can be mounted smoothly without applying an impact to the drum.
[0021]
Next, a method of winding the linear body around the drum will be described.
After placing the empty drum (not shown) on the under-roll type winding / unwinding device as described above, the terminal of the linear body (not shown) was provided on the body or flange of the empty drum. Fasten to the end of the linear body. Thereafter, the power of the electric motor 4 is turned on, and the small-diameter under-roll 1 is rotated via the rotary drive chain, thereby rotating the empty drum and winding the linear body. At this time, the large-diameter under roll 2 freely rotates in accordance with the rotation of the drum while supporting the drum. In addition, the winding direction of the linear body on the drum can be freely selected by switching the direction of attaching the terminal to the drum and the direction of rotation of the small-diameter underroll 1 in both upper winding and lower winding.
[0022]
The unwinding of the linear body from the drum is performed by placing the drum on which the linear body is wound on the underroll-type winding and unwinding apparatus as described above, and then changing the rotation direction of the small-diameter underroll 1 to the linear body. After switching to the slackening direction (extending direction), the power of the electric motor 4 is turned on, the small-diameter underroll 1 is driven via the driving chain 3, and the drum is rotated in a predetermined direction. Is
[0023]
The discharging of the drum from the under-roll type winding / unwinding device is performed as follows. The drum is placed on this under-roll type winding / unwinding device, and after a predetermined operation such as winding and unwinding of the linear body or end processing of the linear body is completed, the large diameter under-roll is performed by the air cylinder 5. The large diameter underroll 2 is moved until the large diameter underroll 2 contacts the small diameter underroll 1. Thereby, the drum is discharged to the small-diameter under roll 1 side.
[0024]
Finally, a method for transporting the drum by the present under-roll type winding / unwinding device will be described. When the present under-roll type winding / unwinding device is moved with the drum mounted, as described above, the power supply of the electric motor 4 is controlled. Is turned off, the rotation stop pin 9 is set on the large-diameter underroll 2, and the rotation of the small-diameter underroll 1 and the large-diameter underroll 2 is stopped. It is moved by the attached moving means. In addition, various driving methods can be selected for the drive of the movement of the under-roll type winding / unrolling device, such as manual power or take-up by an electric motor.
[0025]
【The invention's effect】
As described above, the under-roll type winding / unwinding device and the method of loading / unloading the drum of the present invention can smoothly place the drum with human power, despite the compact configuration, and incorporate the air cylinder. Thus, the drum can be discharged more easily and safely. In addition, the linear body can be wound on the drum or fed out of the drum, and can be transported by the moving means while the drum is mounted. Moreover, the manufacturing cost is low, and a compact and inexpensive apparatus that can be used for a wide range of applications can be obtained.
[Brief description of the drawings]
FIG. 1 is a side view showing an under-roll type winding / unwinding device according to an embodiment of the present invention.
FIG. 2 is a plan view showing an under-roll type winding / unwinding device according to an embodiment of the present invention.
FIG. 3 is a plan view showing a conventional under-roll type winding / unwinding device.
FIG. 4 is a side view showing a state where a drum is mounted on a conventional under-roll type winding / unrolling device.
[Explanation of symbols]
1 ... small diameter under roll, 2 ... large diameter under roll,
3 ... Rotary drive chain, 4 ... Electric motor, 5 ... Air cylinder,
6 ... sprocket, 7 ... guide chain, 8 ... shaft center,
9 ... detent pin, 10 ... device body, 11 ... moving means

Claims (7)

2. Description of the Related Art An under-roll type winding / unwinding device that winds and unwinds a linear body such as a cable by placing a drum on a rotating roll is composed of two types of large and small rolls as represented by the formula (1). An under-roll type winding / unwinding device characterized by the following.
r ₂ > r ₁ (r ₀ + r ₁ ) / (r ₀ −r ₁ ) (1)
However, r ₀ is the radius of the drum to be placed, r ₁ is the radius of the small-diameter under-roll, r ₂ is of large-diameter under roll radius. The underroll-type winding / unrolling device according to claim 1, wherein a large-diameter underroll is provided to be movable in a direction perpendicular to a rotation axis of the underroll. 3. The under-roll type winding / unrolling device according to claim 1, wherein the two types of large and small diameter under-rolls have a rotation stopping mechanism. The under-roll type winding according to claim 3, wherein the under-roll rotation stopping mechanism is a method for stopping the electric motor for a small-diameter under-roll, and a method using a rotation-stop pin for a large-diameter under-roll. Picking and feeding device. 5. An under-roll type winding / unwinding device according to claim 1, wherein a moving means is provided in the device main body. After placing the drum on the small-diameter underroll and the large-diameter underroll that have come into contact with each other, pull the large-diameter underroll back to a predetermined position, and place the drum on the underroll-type winding / unwinding device. How to place drums. A method for discharging a drum, characterized in that a drum is taken out from an underroll-type winding / unwinding device by bringing a large diameter underroll into contact with a small diameter underroll.

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