JPH0659956B2 - Buffer device for vertical feed line of hoop material - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a buffer device that synchronizes the timing between machines of a hoop material vertical feed line and absorbs a shift in a locate position of a hoop material.

[Prior Art] As the above-mentioned buffer device between machines in the vertical feed line for hoop material, the one shown in FIG. 5 is conventionally known. That is, the hoop material C, which is vertically fed between the machines A and B, is brought into a horizontal state in the middle, and is guided to the buffer device D shown in detail in FIG. It has been detected whether or not the upper detection terminal D1 or the lower detection terminal D2 provided on D0 is contacted. When the hoop material C is fed in the direction of the arrow, the machine A moves faster than the machine B. Therefore, when the hoop material C sags downward and comes into contact with the lower detection terminal D2, based on the signal. Machine A is temporarily stopped.
On the contrary, the machine B moves faster than the machine A, so that the hoop material C loses its slack and stretches, so that the upper detection terminal D
When touching 1, the machine B is temporarily stopped based on the signal.

By the way, in such a buffer device D, since the vertical hoop material C is placed in a horizontal state on the way, a large space is required, and the hoop material C is not held and guided in the buffer device D and is free. Therefore, when the movement of the hoop material C is unstable and the machine A moves faster than the machine B, the hoop material C sags downwards and shifts to the side and does not contact the lower end detection terminal D2. Therefore, the ON / OFF operation of the detection terminal may become uncertain.

OBJECT OF THE INVENTION Therefore, an object of the present invention is to provide a buffer device for a hoop material vertical feed line, which saves space, stabilizes the movement of the hoop material, and can accurately detect the shift limit of the hoop material. It is in.

According to the present invention, in the buffer device that synchronizes the timings of the hoop material vertical feed lines between machines and absorbs the displacement of the locate position of the hoop material, the hoop material that holds the hoop material in a vertical state is provided. Detecting a holding means, a moving means for moving the hoop material holding means in a horizontal direction in a direction orthogonal to the hoop material conveying direction in response to a displacement of a locate position of the hoop material, and a predetermined movement limit amount of the moving means. And a moving amount detecting means for controlling the movement amount.

Here, the term "hoop strip" is a long strip-shaped material called a coil material or strip plate, and means a material used in the process of producing a product.
In FIG. 1, the hoop material is indicated by reference numeral C.

Further, the "locate position" means the symbol A in FIG.
A machine indicated by B means a position for positioning and fixing (clamping) the hoop material (reference numeral C), which is indicated by reference numeral L in FIG. The “locator position shift” means a displacement (shift) between the actual position of the hoop material at such a locate position and the position of the positioning and fixing portion of the machines A and B.

Furthermore, the "horizontal direction and the direction orthogonal to the hoop material conveying direction", which is the direction in which the moving means moves the hoop material holding means, is the vertical direction in FIG. 1, and is the arrow M in FIG. Means the direction indicated by.

[Advantageous Effects of the Invention] Therefore, the hoop material holding means can hold the hoop material in the vertical feed state, and the apparatus can be made compact to save space. Further, the hoop material holding means holds the hoop material, and the moving means moves the hoop material holding means in accordance with the displacement of the locate position of the hoop material to stabilize the movement of the hoop material and the movement amount detecting means to move the hoop material. It is possible to accurately detect the movement amount limit of the material. As a result, the hoop material can be fed between the machines smoothly and accurately to improve the operation rate of the machines.

[Preferred Embodiment] In carrying out the present invention, the hoop material holding means is composed of a fixed roller that holds the hoop material, a movable roller that can be engaged with and disengaged from the fixed roller, and a base on which these are erected. Is preferred. With this configuration, the hoop member can be held vertically in a single touch.

In practicing the present invention, it is preferable that the moving means includes a linear bearing attached to the base and a guide rail engaging with the linear bearing.

In carrying out the present invention, it is preferable that the movement amount detecting means is constituted by a micro switch that contacts the base of the hoop material holder and outputs a signal.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a buffer device D for a hoop material C to be vertically fed is provided between the machines A and B. The buffer device D includes a hoop holder 4 which is a hoop material holding means for holding the hoop material C in a vertical position, and the hoop holder 4 for shifting the locate position of the hoop material C in a direction orthogonal to the hoop material C with respect to the frame 1. The guide rail 2 and the linear bearing 3, which will be described later, are moving means for moving the hoop holder 4, and the microswitches 11 and 12 are moving amount detecting means for detecting the movement limit amount of the hoop holder 4.

In FIG. 1, reference symbol L indicates a position where the machines A and B position and clamp (clamp) the hoop material C, that is, a locate position. The arrow M indicates the direction in which the moving means moves the hoop material holding means, that is, the horizontal direction and the direction orthogonal to the hoop material conveying direction.

2 to 4, a guide rail 2 is attached in the longitudinal direction on the upper surface of a rectangular horizontal pedestal 1, and a hoop holder 4 is movably provided on the guide rail 2 via a linear bearing 3. There is. A fixed roller 6 and a movable roller 7 which can be engaged with and disengaged from the fixed roller 6 are provided upright on a base 5 to which the linear bearing 3 of the hoop holder 4 is fixed. Reference numeral 8 in the drawing denotes a rotary shaft on which the movable roller 7 is eccentrically mounted, and the rotary shaft 8 is rotated to disengage the movable roller 7 from the fixed roller 6. Ladder chains 9a and 9b are attached to the ends of the base 5 in the longitudinal direction.
A balance weight (not shown) is attached to the lower ends of the ladder chains 9a and 9b via a, 10b, 10c, and 10d to balance the movement direction of the hoop holder 4, and the hoop holder 4 is The hoop member C can be moved smoothly according to the displacement of the locate position.

On the other hand, on one side in the longitudinal direction of the gantry 1. Micro switches 11, 12 and 13 are movably provided, and the operating ends 11a, 12a and 13a of these switches contact the base 5 of the hoop holder 4 to detect the movement limit amount of the hoop holder 4. The micro switch 13 is for detecting the movement safety limit amount of the hoop holder 4. When operating machines A and B, hoop material C between machines
The hoop material C is inserted between the fixed roller 6 and the movable roller 7, and the rotary shaft 8 is rotated to engage the movable roller 7 with the fixed roller 6 and both rollers. The hoop material C is sandwiched and held.

If machine A moves faster than machine B during operation, the first
In the drawing, the hoop material C sags upward, and therefore the locate position, that is, the hoop holder 4 moves upward (to the right in FIG. 2). Then, the actuating end 11a of the microswitch 11 contacts the base 5 to detect the movement limit amount in that direction and output a signal. Then, the control device (not shown) temporarily stops the machine A based on the signal,
Absorbs the slack of the hoop material C for a certain period of time (machine B
After that, the slack absorption time of the hoop material C is set in advance), and then the machine A is restarted.

When the machine B moves faster than the machine A, the hoop material C moves downward (Fig. 1), and the hoop holder 4 moves leftward (Fig. 2). And micro switch 1
The second operating end 12a contacts the base 5 to detect the movement limit amount in that direction and output a signal. Then, the control device temporarily stops the machine B based on the signal, and sends the hoop material C by the machine A to recover a predetermined slack, and a predetermined time (the recovery time of the predetermined slack of the hoop material C by the machine A is recovered. Is preset) and then machine B is started again.

[Effects of the Invention] As described above, according to the present invention, the hoop member can be held in the vertical state by the hoop holder, and the device can be made compact to save space. In addition, the hoop holder holds the hoop material, and the hoop holder moves according to the displacement of the locate position due to the slack or tension of the hoop material to stabilize the movement of the hoop material, and the microswitch moves the hoop holder, that is, the hoop material. The limit amount can be accurately detected. As a result, the hoop material can be fed between the machines smoothly and accurately to improve the operation rate of the machines.

[Brief description of drawings]

FIG. 1 is a plan view for explaining the outline of one embodiment of the present invention, FIG. 2 is a plan view of an apparatus used in the embodiment outlined in FIG. 1, and FIG. FIG. 4 is a side view of the apparatus used in the embodiment for explaining the outline, FIG. 4 is a view taken in the direction of arrow X in FIG. 1, FIG. 5 is a schematic side view illustrating the conventional apparatus, and FIG. 6 is a perspective view of the conventional apparatus. is there. A, B ... Machine, C ... Hoop material, D ... Buffer device, 1 ...
Frame, 2 ... Guide rail, 3 ... Linear bearing, 4 ...
Hoop holder, 5 ... Base, 6 ... Fixed roller, 7 ... Movable roller, 11, 12, 13 ... Micro switch.

Claims (1)

[Claims] 1. A hoop material holding means for holding a hoop material in a vertical state and a hoop material in a buffer device for synchronizing the timing between machines of a hoop material vertical feed line and absorbing a displacement of a locate position of the hoop material. Moving means for moving the hoop material holding means in a horizontal direction and in a direction orthogonal to the hoop material conveying direction in response to the displacement of the locate position of the moving means, and a moving amount detecting means for detecting a predetermined moving limit amount of the moving means, A buffer device for a vertical feed line for hoop material, characterized by being provided with.