JPS6135291Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an attachment for an uncoiler.

Generally, in a press factory, a coil material that will become a blank sheet is mounted on an uncoiler, and pressing work is performed while the uncoiler is rotated to pull out the blank sheet. The inner diameter of the coil material is not the same, but there are two types depending on the standard (20 inches and 24 inches)
Therefore, it is not possible to attach two types of coil materials to one uncoiler. Therefore, normally a 20-inch uncoiler is prepared, and when a 24-inch coil material is attached to this uncoiler, an attachment for increasing the diameter is attached to the uncoiler.

As shown in Fig. 1, this type of attachment is made of steel plate, and this attachment a is fastened to the blade c of the uncoiler b by a bolt d. However, in this case, the attachment a is heavy (about 20 to 60 kg),
Moreover, since it is necessary to attach each of the blades individually, the attachment and detachment operations are extremely difficult and time-consuming, resulting in inconvenience in handling.
Furthermore, the attachment a must be curved (R-shaped) to match the curvature of the blade c, which is disadvantageous in that the processing costs are high.

On the other hand, as shown in Figure 1B, there is also a rubber attachment, and this attachment a' is formed into a ring shape and is used by being attached to the entire blade c' of the uncoiler b'. Since the tensile strength of rubber is quite high (generally 25 kg/cm ² ), it is necessary to increase the force to expand the blade c' outward when installing the coil material, which has the disadvantage that it cannot be used on small aircraft. . Furthermore, in order to form it into a ring shape, a special extrusion mold is required, which requires a large amount of cost to manufacture the attachment a'.

The present invention aims to provide an attachment that overcomes the conventional difficulties mentioned above.
Consisting of a metal substrate that has elastic pieces on both sides that engage with the uncoiler blade and is curved to match the curvature of the blade, and an oil-resistant rubber plate of a predetermined thickness that is fixed to the surface of this metal substrate. The main points are as follows.

This invention will be explained below with reference to the illustrated embodiments. 1 is an attachment according to this invention;
The metal substrate 2 (a steel plate with a thickness of about 1.5 m/m) is entirely curved to match the curvature of the uncoiler blade, and each elastic piece 2a is bent into a hook shape on both sides to be locked to the blade. An oil-resistant rubber plate 3 of a predetermined thickness (approximately 50 m/m) is bonded to the surface of the metal substrate 2 by baking.
In this case, the length of the attachment 1 is set to 30 to 40 cm.

The attachment 1 configured in this way is used by being fitted onto the blades 5 of the uncoiler 4. The attachment 1 is fitted onto each blade 5 to form a ring shape, and is arranged in at least two rows depending on the length of the uncoiler 4. shall be established. At this time, to attach the attachments 1 to the blade 5, it is only necessary to clamp and fix the edges 5a on both sides of the blade 5 with the elastic pieces 2a, and to position each attachment 1, slide the attachment 1 along the blade 5. It can be easily done if you let it. Therefore, attaching and detaching the attachment 1 is extremely easy and can be done in a short time.

As explained above, the attachment according to this invention is easy to handle because each block is small and lightweight, and it is extremely efficient because it can be easily attached and detached, and misalignment when attached to the uncoiler can be easily corrected. It has excellent effects. In addition, the attachment can easily form a curve on the metal substrate and has a simple structure, so it can be manufactured at low cost, and unlike conventional ring-shaped rubber attachments, there is no need to consider expansion force, so it is suitable for small machines. is possible, and its practical value is extremely high. In some cases, the attachment may be made long and attached to the entire blade.

[Brief explanation of drawings]

Fig. 1 shows a conventional example, A is a steel plate attachment, B is a ring-shaped rubber attachment, respectively. Fig. 2 is a perspective view of the attachment according to this invention, and Fig. 3 is its use. A perspective view showing the state, and FIG. 4 is a side view. 1... Attachment, 2... Metal substrate, 2a
...Elastic piece, 3...Rubber plate, 4...Uncoiler,
5...Blade.

Claims (1)

[Scope of utility model registration request] It consists of a metal substrate that has elastic pieces on both sides that lock onto the uncoiler blade and is curved to match the curvature of the blade, and an oil-resistant rubber plate of a predetermined thickness that is fixed to the surface of this metal substrate. Attachment for uncoiler featuring: