JPH02300050A - Uncoiler machine - Google Patents

Abstract

PURPOSE:To carry out the installing work of a coil member simply and rapidly by forming guide surfaces of a taper-form guide at the inner walls of divided drum pieces, gearing wedge-form members to the guide surfaces, and sliding the wedge-form members in the axial direction along the guide surfaces so as to expand or contract the diameter of the divided drum pieces. CONSTITUTION:When the inner diameter of a coil member is large, a hydraulic cylinder is operated to the left side, and a sliding force is delivered to a sliding member 32 to the left side through a driving rod 37. As a result, the sliding member 32 is slided, wedge-form members 33 are also moved to the left side following this sliding, and guide surfaces 51 of divided drum pieces 5 are pushed up by the wedge-form members 33, resulting in the expansion of the diameter of a drum 4. Then, a coil member is inserted playable from the tip of the drum 4, and after that, the hydraulic cylinder is operated further to move the wedge- form members 33 to the left side. As a result, the divided drum pieces 5 are pushed up and geared with the inner bore of the coil member rigidly.

Description

[Detailed Description of the Invention] [Industrial Application Field] This ill is a coil member (herein referred to as a member formed by winding a thin strip-shaped iron plate into a coil shape) in order to supply raw materials to a shearing machine. ) related to an uncoiler machine that rotatably instructs.

[Prior Art] A shearing machine that cuts sheet metal is equipped with an uncoiler machine in order to receive a continuous supply of raw material (iron plate).

This uncoiler machine has a drum that can rotate freely via bearings, and a coil member can be fitted onto this drum. When pulling out the iron plate, the drum rotates according to the pulling force. .

By the way, the conventional uncoiler machine has 6 coil members.
When the hole size changed, a cylindrical spacer was fitted onto the drum to adjust the drum diameter.

[Problems to be solved] In the conventional uncoiler machine mentioned above, the spacer that is fitted onto the outside of the drum is large and a figurine, so the work of fitting the spacer on the outside takes time and labor, and is also dangerous. .

The present invention was made to solve these problems, and an object of the present invention is to provide an uncoiler machine that can mount coil members of various sizes without the need for spacers.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an uncoiler machine in which a coil member is rotatably mounted on the outer periphery of a drum, in which the drum is divided in the axial direction to form a plurality of divided drum pieces. , by forming a tapered guide surface on the inner wall of each divided drum piece, engaging a wedge-shaped member with this guide surface, and sliding this wedge-shaped member in the axial direction along the guide surface. The structure is such that the divided drum pieces are expanded or contracted in diameter.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIGS. 1(a) and 1(b) are diagrams showing the overall configuration of an uncoiler machine according to an embodiment of the present invention, and FIG. 1(a) is a front view;
Figure (b) is a side view. FIG. 2 is an enlarged cross-sectional side view showing a drum portion which is a main part of the uncoiler machine, and FIG. 3 is a cross-sectional view taken along the line A--A in FIG. 2.

In FIGS. 1(a) and 1(b), a bearing 1 is fixed to the L surface of the main body 2 of the apparatus and rotatably supports a cylindrical drum support 3. In FIGS. Reference numeral 4 denotes a drum consisting of four 11-piece drum pieces 5, and is provided on the outer periphery of the front half of the drum support 3.

A flange 6 is fixed to the drum support 3 near the bearing, as shown in Figure i2, and radial elongated holes 7 are bored at four locations in the flange 6. On the other hand, a guide pin 8 is attached to the rear end of each divided drum piece 5, and this guide pin 8 is slidably engaged with the elongated hole 7 of the flange 6. Note that each divided drum piece 5 is always urged in the direction of the central axis by an unillustrated urging member.

Further, the inner wall of the divided drum piece 5 has a tapered guide surface 5.
1 is formed at a plurality of locations (three locations in this embodiment).

This guide surface 51 has a gradient such that it gradually becomes an outer position toward the tip of the divided drum piece 5. The thickness is made thin and the guide surface 51 is made as long as possible. Therefore, the extrusion stroke of the divided drum piece 5 by the wedge-shaped member described later becomes longer.
The diameter of the drum 4 can be changed greatly.

52 is a guide groove formed along this guide surface 51.

On the other hand, four sliding guide grooves 31 in the axial direction are formed on the surface of the drum support 3, and a sliding member 32 is engaged with the sliding guide grooves 31. Three wedge-shaped members 33 are fixed to the sliding member 32, and as the sliding member 32 slides, these wedge-shaped members 33 move in the axial direction.

The top surface 33a of the wedge-shaped member 33 has a slope corresponding to the guide surface 51, and when the top surface 33a is in contact with the guide surface 51, the split drum piece 5 and the wedge-shaped member 3
3 are engaged. Furthermore, the wedge-shaped member 33 has
A projection 34 is provided, and this projection 34 and the guide groove 52
are engaged (see Figure 3).

A hydrostatic bearing 3 is provided between the top surface 33a of the wedge-shaped member 33 and the guide surface 51 of the divided drum piece 5, and between the sliding guide groove 31 of the drum support 3 and the sliding member 32, respectively.
5.36 are formed to ensure smooth sliding movement between each member.

Reference numeral 37 denotes a drive rod for driving the sliding member 32, which extends along the central axis of the drum support 3, and has a tip end connected to the sliding member 32 via a connecting piece 38, and a rear end end connected to the sliding member 32. is connected to a hydraulic cylinder 39 (see FIG. 1).

Next, the operation of the uncoiler machine mentioned above will be explained.

First, according to the 6-hole size of the coil member to be supported,
For example, 6 of the coil member changes the diameter of the drum 4.
When the hole has a large diameter, the hydraulic cylinder 39 is operated to the left in the drawing, and the sliding force in the left direction in the drawing is transmitted to the sliding member 32 via the drive rod 37. As a result, the sliding IH member 32
slides, and the wedge-shaped member 33 also moves to the left in the figure.

Then, the guide surface 51 of the divided drum piece 5 is pushed up by the wedge-shaped member 33, and as a result, the diameter of the drum 4 is expanded. The portion in the f direction from the center line in FIG. 2 shows the drum 4 in its most expanded state.

Conversely, when the six holes of the coil member have a small diameter, the hydraulic cylinder 39 is operated to the right in the drawing, and the sliding member 32 is slid to the right in the drawing via the drive rod 37. Then,
The wedge-shaped member 33 moves to the right (as shown), and the divided drum piece 5 then moves in the direction of the central axis due to the biasing force from a biasing member (not shown), and as a result, the diameter of the drum 4 is reduced. One portion from the center line in FIG. 2 shows the state in which the drum 4 has the smallest diameter.

In this way, by moving the wedge-shaped member 33 in the axial direction, the outer diameter of the drum 4 is set to be slightly smaller than the diameter of the core hole of the coil member.

Next, the coil member is loosely fitted from the tip of the drum 4, and then the hydraulic cylinder 39 is further operated to remove the wedge-shaped member 3.
3 to the left in the figure. As a result, the divided drum pieces 5 are pushed up and firmly fitted into the six holes of the coil member. In this state, if you pull out the iron plate from the coil member,
The drum support 3 rotates around its axis and sequentially supplies the iron plate to a processing machine such as a shearing machine.

Note that the present invention is not limited to the embodiments described above.

For example, the drum may be formed from two, three, or even five or more separate drum pieces, and the guide surfaces and wedge-shaped members may be provided at -, two, or more than four parts.

Further, the drive means for the wedge-shaped member is not limited to the means using a hydraulic cylinder and a drive rod, but various known linear drive means can be applied.

The slope of the guide surface and the wedge-shaped member can be set to any angle as required.

[Effects of the Invention] As explained above, according to the uncoiler machine of the present invention, coil members of various sizes can be mounted without the need for spacers, and therefore, the work of mounting coil members can be done easily and quickly. It has the effect of being easy to use and safe.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) are diagrams showing the overall configuration of an uncoiler machine according to an embodiment of the present invention, and FIG. 1(a) is a front view;
Figure (b) is a side view. FIG. 2 is an enlarged cross-sectional side view showing a drum portion which is a main part of the uncoiler machine, and FIG. 3 is a cross-sectional view taken along the line A--A in FIG. 2. l: Bearing 2: Device main body 3 Ni-drum support 4 Ni-drum 5: Split drum piece 31: Sliding guide groove 32: Sliding member 33: Wedge-shaped member 37: Drive rod
39: Hydraulic cylinder 51: Guide surface

Claims (1)

[Claims] In an uncoiler machine in which a coil member is rotatably mounted on the outer periphery of a drum, the drum is divided in the axial direction to form a plurality of divided drum pieces, and a tapered guide surface is formed on the inner wall of each divided drum piece, Further, a wedge-shaped member is engaged with the guide surface, and by sliding this wedge-shaped member in the axial direction along the guide surface, each divided drum piece is expanded or contracted in diameter. uncoiler machine.