JPH0518106Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is a synthetic resin film,
Regarding the mold clamper that clamps the mold base to the mold mounting surface of the table that moves up and down in a pressure forming machine, it is necessary to move the clamp bar together with the cylinder for molds of various sizes with varying areas on the base. It has a structure for fastening or releasing from fastening.

(Prior art) Conventionally, in order to fasten the mold base to the mounting surface b of the table, a plurality of screw holes are provided in the direction of the arrow x on the mounting surface b of the table a, as shown in FIG. Place the mold base c on the mounting surface b using a transporter, and attach it by screwing the fastening screw d into the screw hole in the table through the through hole provided in the base, or attach the L-shaped fitting (not shown) to the mold base. c and is fixed with a tightening screw in the same way as above. Although the area of the mold base c changes depending on the size of the mold, the mounting mechanism remains the same in principle, so it can be used for many purposes. Not only is it difficult to follow changes in the type of mold base c, but it is also one of the difficult tasks in terms of tightening operation.

(Problems to be Solved by the Present Invention) In view of the above, the present invention is designed so that the rod-shaped clamp bar can be freely moved and adjusted to fit any mold base having any area, making it easy to use. The purpose is to

(Means for Solving the Problems) The present invention is designed to meet the above-mentioned objectives, and includes a movable cylinder 21 provided on the opposite surface of the table to the mold mounting surface, and a metal mold mounted on the mounting surface. A rod-shaped clamp bar for clamping the mold base to any part of the mounting surface is arranged approximately at right angles to the moving direction of the cylinder, and the clamp bar is provided with a bent arm protruding from the side of the table to the opposite surface. The mold clamper is characterized in that the bending arm is attached to the rod 22 that protrudes away from the opposite surface of the cylinder, and even if the mold base is changed, only the movement of the cylinder can be performed. It is possible to tighten and release by interlocking rod-shaped clamp bars.

A preferred embodiment of the present invention will now be described.

(Example) The tables 1 and 1 on which the molds are attached are usually installed one above the other as shown in FIG. This is the mold mounting surface 2. On those tables 1, 1, the opposite side 3 of each mold mounting surface 2, 2,
The upper mold 6 has a plate-shaped base 7 attached to the mounting surface 2 on the lower surface of the upper table 1, and the lower mold 8 has A plate-shaped base 9 is connected to a lower table 1.
Attach to mounting surface 2 on the top surface of. Upper mold 6 and lower mold 8
are used in many different shapes, and for this reason the planar shapes of the bases 7 and 9 are also different. Since the protrusion and the recess are designed to fit together, there will be no misalignment in the mounting position.

The present invention relates to a mold clamper that clamps and fixes the bases 7 and 9 having different planar shapes to the mounting surfaces 2 and 2 in this way. Although the upper table 1 will be described below, the lower table 1 is also structurally equivalent.

FIG. 1 is a perspective view of the upper table 1,
Each pair of parallel guide rails 11, 11 is installed near the edges on both sides of the opposite surface 3, and the guide rails 11, 1
A low-shaped cylinder mounting base 12, 1, respectively.
2, one pair each, for a total of four units. For each mounting base, threaded rods 14, 14 with opposite screw lead directions on both sides are screwed into screw holes 13 provided in the inserts of each mounting base 12, and threaded rods 14 near the edges on both sides are screwed together. A bevel gear 16 is fixed to one of the screw rods 14 between the gaps in the guide rail 11, and a bevel gear 18 provided on the movement control rod 17 is connected to the bevel gear 1 through a chain 15.
6 to rotate the screw rods 14, 14 in conjunction with each other. Reference numeral 19 designates a shaft support piece for each screw rod 14, 14 and the movement control rod 17, and 20 represents a chain wheel attached to the screw rods 14, 14 for hanging the chain 15.

A hydraulic cylinder 21 with a rod 22 projecting upward is mounted on each mounting base 12. As shown in FIG. 3, the rod 22 is protruded by a strong spring 23 provided inside the cylinder, and pressure oil is sent to the cylinder 21 to compress the spring 23 and contract the rod 22.

On the mold mounting surface 2, a rod-shaped clamp bar 24 for tightening the base 7 to any part of the surface is arranged at right angles to the screw rods 14, 14, and the clamp bar 2
4 is the outside of both sides of table 2, and the opposite side 3
Inverted L-shaped bent arms 25, 25 projecting upward are provided. This clamp bar 24 is a pair, and each bending arm 25 is attached to the rod 22 of the cylinder 21.
Make the structure shown in the diagram.

The present invention sends pressure oil to each cylinder 21, lowers the rod 22 and clamp bar 24 as shown by the arrow in FIG. 14, 14 to move the cylinder 21 and clamp bar 24 and replace it with another upper mold 6, move the cylinder 21 and clamp bar 24 in the opposite direction to match the base 7 to which the upper mold 6 is attached, and replace each cylinder with another upper mold 6. Pressure oil is gradually removed from 21 and the clamp bar 24 is raised, thereby tightening the base 7 to the mold mounting surface 2 of the table 1.

The lower table 1 is provided with various devices that are symmetrical to the aforementioned devices provided on the upper table 1, and a lower mold 8 is installed.
Clamp the base 9.

(Effects) The present invention has the configuration and operation illustrated above,
A cylinder 21 in which a bending arm 25 of a bar-shaped clamp bar 24 for clamping the base 7 of the upper mold 6 or the base 9 of the lower mold 8 on the mold mounting surface 2 of the upper or lower table 1 is freely movable on the opposite surface 3. by attaching it to the rod 22 and tightening the bases 7 and 9 to the mold mounting surface 2,
The clamp bar 24 can be moved by the cylinder 21 in accordance with the area size of the bases 7 and 9, and the clamp bar 24 can be pressed against any part of the bases 7 and 9. It has a rod-shaped configuration that adds additional features, and by moving in accordance with the bases of various types of upper or lower molds, various types of bases can be tightened or released from the mold mounting surface 2, which is different from the conventional method. This has the effect of eliminating disadvantages in using the clamp device.

[Brief explanation of the drawing]

Figures 1 to 5 show the present invention. Figure 1 is a perspective view, Figure 2 is a front view of the upper mold 6 and lower mold 8, Figure 3 is a vertical sectional view of the cylinder 21, and Figure 4 is a perspective view. A partial exploded perspective view, FIG. 5 is a bottom view, and FIG. 6 is a bottom view of the conventional device compared with FIG. 1...Table, 2...Mold mounting surface, 3...Opposite surface, 4...Cylinder, 5...Rod, 6...Upper die, 7...Base, 8...Lower die, 9...Base ,
11...Guide rail, 12...Mounting stand, 21...
Cylinder, 22...rod, 24...clamp bar, 25...bending arm.

Claims (1)

[Scope of utility model registration request] Cylinder 21 on the opposite side of the table to the mold mounting surface.
is movably provided, and a rod-shaped clamp bar for clamping the mold base to any part of the mounting surface is arranged approximately perpendicular to the moving direction of the cylinder, and the clamp bar is attached to the side surface of the table. A mold clamper characterized in that a bent arm is provided that projects from the opposite surface to the mounting surface, and the bent arm is attached to a rod 22 that projects in a direction away from the opposite surface of the cylinder.