JPS5928161B2 - Multidirectional clamping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressing device for pressing and forming furniture.

Conventionally, furniture such as chairs has been formed by pressing plywood, and the pressing device used for this forming is basically a flat pressing, which can be used in two directions: top and bottom or from the sides. Recently, molding machines that can press in multiple directions have been developed, but a molding machine that can change the pressing direction and that can press at least simultaneously on the water surface has not yet been developed.

However, most furniture has a hexahedral structure,
Therefore, in the past, pressing was performed in several steps to form one piece.

This multi-stage processing is not very desirable as the previously processed parts may become distorted during subsequent processing (it also requires a lot of processing time and is not labor-saving either).

The present invention allows formation of six surfaces at the same time, and also allows the direction to be changed, making it possible to press a complicated shape.

Next, one embodiment of the present invention shown in the drawings will be described in detail.

A base 1 and a beam 2 are provided above and below, and these are supported by left and right fixed columns 3 to form a frame shape as a whole.

A table 4 is fixed to the upper surface of the base 1 or can be rotated vertically, and a lifting cylinder 5 is fixed to the beam 2.
One or more lifting pressure plates 7 connected to the piston rod 6 are provided on the lower surface of the table 4 and facing the table 4 .

The left and right fixed columns 3 are provided with one or a plurality of left and right cylinders 10 that face each other and connect left and right pressurizing plates 8 to piston rods 9, the positions of which can be adjusted up and down, and a trunnion 21. It is preferable to be able to swing up and down about the center.

A hinge 11 is fixed to the base 1 and the beam 2, and movable struts 12 are located on both sides of the fixed strut 3 and rotatably pivoted to the hinge 11. The lower end of the rail 13 guides and supports a rail 13 formed in an arc shape centered on the hinge 11.
A rack 14 is provided on each of the racks 14, and a pinion 15 that meshes with the rack is connected to a motor 16 provided on each movable column 12.
The movable column 12 can be moved and fixed in an appropriate direction by a decelerator 17, and one or more cylinders 20 each having a front and rear pressure plate 18 on a piston rod 19 are installed in each of the movable columns 12. It is preferable to provide it so that its position can be adjusted and that it can swing up and down about the trunnion 21.

1 to 3 show the case of vertical compression between the table 4 and the lifting pressure plate 7, and four-sided pressure forming in the vertical and horizontal directions using the left and right as well as the front and rear pressure plates 8 and 18.

For example, in the case of a six-sided body a made of plywood for an armchair, as shown in FIG. As the pinyon 15 is rotated, the pinion 15, that is, the movable column 12 moves on the rail 13 around the hinge 11, and when it stops after rotating approximately 90 degrees, the movable column 12 is positioned and rotates back and forth as shown in FIG. The pressure plates 18 face each other in the front-rear direction.

Therefore, a flat plate-like plywood having the outer peripheral shape of the main body a is placed on the table 4, and an inner mold (not shown) for forming the main body a is placed on top of the table 4, and the lifting pressure plate 7 is placed on the plate together with the inner mold. Pressure is applied onto the shaped main body a to fix both.

Next, each cylinder 10 of each left and right, front and rear pressure plate 8, 18
．． 20 are respectively applied with fluid pressure such as hydraulic pressure and extruded through the piston rods 9 and 19, and each of the front surface a1, both side surfaces a2, and back surface a3 of the main body a is bent along the inner mold, and at the same time, the main body a is Pressing is performed from six sides, the upper and lower two sides, and the molding is simple.

In addition, when the movable columns 12 are rotated approximately 45 degrees and fixed and pressed with each pressure plate, there are 6 sides on the sides and 8 on the top and bottom sides.
Enables facepiece molding and clamping, making it possible to clamp more complex shapes.

In molding the main body a, the inner mold is fixed on the table 4, and the above-mentioned combination is stacked on top of it, and the elevating pressure plate 7 fixes the plywood, and then the front and rear, left and right crimping plates may operate, and when the length of the rear part a1, a3, or both sides a2 is long, after pressing the plywood with the lifting pressure plate 7, the first
~ In the state shown in Fig. 3, for example, both sides a2 are formed using the front and rear, left and right pressure plates 18, 8, and then the inner mold and the plywood are bent at 90 degrees.
It is also possible to press six sides by rotating together with the table 4 and further pressing.

As described above, the present invention provides a movable support having a pressure plate,
As this movable change makes it possible to press in the required direction, it is possible to perform complex multi-faceted molding, and since the movable support is movable, it opens wide to take the workpiece in and out of the table (first to・Figure 3) Work is easy and quick.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention, and Fig. 1 is a partially cutaway front view, Fig. 2 is the same (side view), Fig. 3 is a plan view, and Fig. 4 is a partially cutaway front view. Fig. 5 is a plan view showing an example, and Fig. 5 is a perspective view showing an example of a compacted body.
4 is a table, 5 is an elevating cylinder, 7 is an elevating pressure plate,
8 is a left and right pressure plate, 10 is a left and right cylinder, 11 is a hinge, 12 is a movable column, 13 is a rail, 14 is a rack, 18
2 is a front and rear pressure plate, and 20 is a front and rear cylinder.

Claims (1)

[Claims] 1. A base with a table and a beam located above it are fixed in a frame shape with a fixed support, and the table is supported with an elevation pressure plate on the beam and a left and right pressure plate on the fixed support, respectively. , a plurality of movable struts pivotally connected to the fixed bones are provided and guided and supported on rails formed in an arc shape with the pivot point as the center, and front and rear pressure plates are respectively supported on these movable struts, and a movable strut is provided. A multi-directional clamping device that enables simultaneous clamping of clamped workpieces from multiple directions according to the amount of movement.