JPS635902A - Molding machine for curved aggregate material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is based on the invention, in which a laminated moon made up of a plurality of wooden boards coated with an adhesive is stacked with a large number of supports that are arranged upright on a base along a molding line in advance. The present invention relates to a curved laminated timber molding machine that curves and molds the laminated timber into a predetermined shape by pressing the laminated timber into a predetermined shape and holding this state until the adhesive hardens.

(Prior art) Curved laminated timber generally used for architectural structures is
As shown in the figure, curved laminated timber A is often used, which has a hook shape with both ends (A) and (B) intersecting in a straight line and the middle part (X) shaped like an arc. In this case, both ends (A)
Curved laminated timber of various types and in small quantities is often required, with various angles of intersection (a) and radius of curvature of the intermediate part (a).

By the way, the conventional molding machine for curved laminated wood has the structure shown in FIGS. 5 and 6. That is, a full-size template 2 previously formed in a predetermined shape is placed on a base 1, Along this template 2, its back surface 2b (fifth
After erecting and arranging a large number of columns 3 on the lower surface (in the figure),
Each support column 3 is bolted and fixed to the base 1, and a flat pressure plate 5 is arranged on the side of each support column 3, and the pressure plate 5 is fastened to each support column by a fastener 6 consisting of bolts and nuts. It had a structure in which it was moved in the direction toward and away from 3.

Then, on the pillars 3 arranged and fixed on the base 1 as described above, a laminated timber 4 made by stacking a plurality of wooden boards with an adhesive is placed on the front side of the pillars 3 ( Fifth
The linear part of the lower end is clamped and fixed, that is, pressed, to the corresponding support 3 by the clamping plate 5 and clamping tool 6, as shown in Figure 6, and the other end The side is moved in a curved manner in the direction of the corresponding pillar 3 using a winch or the like, and the other end is pressed onto the pillar one after another using the clamping plate 5 and the clamping tool 6, and is left in this state until the adhesive hardens. , a hook-shaped curved laminated lumber A as shown in FIG. 4 was molded.

(Problems to be Solved by the Invention) The conventional method described above requires a full-size template when setting the pillar on the base, so it has the disadvantage of requiring a lot of labor and time to produce the template. there were.

Furthermore, the pillars are generally fixed to the base with bolts, etc., but when the pillars are arranged along the molding line of the laminated wood, the bolt holes on the pillar side and the bolt holes on the base side do not match. In this case, it may be necessary to create new bolt holes or create special fasteners.
There was a drawback that it required a lot of labor and time to fix the pillar to the base.

The object of the present invention is to obtain a novel curved laminated timber molding machine that eliminates the above-mentioned drawbacks.

(Means for Solving the Problems) In order to achieve the above object, the present invention is particularly constructed as follows.

That is, some of the pillars are arranged in a straight line and fixed upright on the base, the arrangement direction of the remaining pillars is different from the arrangement direction of the part, and each of the remaining pillars is arranged with respect to the arrangement direction. A guide is provided which is connected to the base so as to be movable in substantially orthogonal directions, and an adjustment mechanism is provided which can withstand loads in the direction of movement of each support and which can independently move and adjust each support along the guide during operation. A drive mechanism for driving the drive mechanism is provided, and a control device is provided for controlling the amount of drive of each of the drive mechanisms based on a data input signal.

(Function) Since the present invention has the above configuration, when a predetermined data signal is input to the control device, each drive mechanism is drive-controlled and each adjustment mechanism is operated by a predetermined amount.

As a result, the remaining columns, excluding some of the columns fixed to the base, are moved along the guide and arranged on a molded line that is continuous with the some of the columns and curved into a predetermined shape. .

Further, each of the remaining struts arranged in the above arrangement is immovably connected and held to the base by each guide and each adjustment mechanism at each position.

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

First, in the drawings, Fig. 1 is an explanatory diagram showing the basic configuration of the present invention, Fig. 2 is a perspective view showing the structure of one set of support columns, and Fig. 3 is an explanatory diagram showing an example of dimensions in Fig. 1. It is a diagram.

In FIG. 1, 10 is a base, and this base 10
On the top, a large number of support columns 11 are arranged in parallel at a predetermined pitch in a hook shape.

That is, as shown in FIGS. 1 and 3, the length of the columns 11-a and 11c arranged in a straight line on the right and left sides is 300 m.
The pillars 11 are arranged at a pitch of , and arranged in an arc shape in the middle.
b are arranged at a pitch of 7 degrees with the point P as the center.

As shown in FIG. 2, each support column 11 is connected to a plate-shaped clamping plate 12 arranged on each side by a clamping tool 13 consisting of a pair of upper and lower bolts and nuts.

Further, each of the pillars 11 is connected to the base 10 in the following manner.

That is, the columns 11a arranged in a straight line on the right side are erected and fixed to the base 10, except for the two columns 11a-1 on the left end.

Further, the remaining columns 11a-1, 11b, and 11C are each independently connected to the base 10 via a rail 14 that serves as a guide and a screw stud 15 that serves as an adjustment mechanism.

That is, the remaining pillars 11a-1, llb, 11c
Rails 14a, 14b, 14C corresponding to
It is arranged to extend in a direction perpendicular to the arrangement direction of 1a-1, 11b, and 11c, and is integrally fixed to the base 10 with bolts or the like.

That is, the rail 14a extends perpendicularly to the arrangement direction of the right column 11a, the middle rail 14b extends radially from point P, and the left rail 14c extends from the left column 11c. Each is fixed to the base 10 while extending in a direction perpendicular to the arrangement direction.

The lower end of the support column 11 is slidably connected to each of the rails 14 by a slide bearing 16.

Further, threaded rods 15 are arranged above each of the rails 14 and extend parallel to them, and both ends thereof are rotatably connected to the base 10 by bearings 17, and each of the above-mentioned supports 11 a - The lower parts of 1, 1 l b and 11c are connected by screws.

Each threaded rod 15 is connected to a drive mechanism 18 as shown in FIG.
Connect to.

That is, a driven gear 18c is connected to the end of each threaded rod 15, a motor 18a corresponding to each threaded foot 15 is mounted and fixed on the negative base 10 side, and a driving gear 18b is connected to the rotating shaft of each motor 18a. The driving gears 18b are coupled to the driven gears 18c, respectively.

In addition, 19 in FIG. 2 is a control device, and a control circuit 19a
, a calculation circuit 19b, and a measurement circuit 19c.

That is, a measuring device 19c-1 consisting of a pulse generator is connected to the outer end of each screw rod 15, and a signal from this device 19c-1 is detected by a measuring circuit 19c, and each screw rod 15 , that is, each support column 11a-
A signal corresponding to the current position of 1.llb.11c is output to the control circuit 19a.

The calculation circuit 19b is composed of, for example, a commonly available microcomputer, and calculates the amount of drive of each drive mechanism 18 based on necessary data input based on the shape and dimensions of the curved laminated material to be molded. That is, it is programmed to calculate the number of rotations of the threaded rod 15, and outputs a signal corresponding to the calculated number of rotations to the control circuit 19a.

Further, the control circuit 19a is configured such that the current rotational speed signal value of each threaded rod 15 inputted from each of the measurement circuits 19c matches the set rotational speed signal value of each threaded rod 15 inputted from the calculation circuit 19b. Thus, the amount of drive of the drive mechanism 18 is controlled.

Next, the operation mode of the above embodiment will be explained.

First, data necessary for the shape and dimensions of the curved laminated timber to be molded is input into the calculation circuit 19b.

Then, the control circuit 19a rotates each motor 18a, that is, each screw stud 15, so that the input signal value from each measurement circuit 19c matches the input signal value from the calculation circuit 19b.

As a result, each of the pillars 11a-1, llb, and 11c is moved by a predetermined amount along the rail 14, and arranged on a curved forming line having a predetermined shape.

In this case, if the extending direction and length of each rail 14, that is, the moving direction and moving amount of each support 11a-1, 11b, 11C, are set as shown in Fig. 3, the necessary data can be calculated. By inputting to circuit 19b, each column 1
The radius of curvature of the molding line formed by 1a-1, 11b, llc is 2000 to 400 centered on the straight line B-B'.
The bending angle can be arbitrarily changed within the range of 0 mm and the bending angle within the range of 100 to 130 degrees.

Then, each of the pillars 11a-1 and 11b arranged in the above arrangement
11c is prevented from moving in the lateral direction by the rail 14 and the slide bearing 14, and is prevented from moving in the forward and backward directions by the threaded rod 15.

(Effects of the Invention) As is clear from the above description, according to the present invention, only the data necessary for the shape and dimensions of the curved laminated timber to be molded are input, and some of the supports fixed to the base are removed. The remaining columns are moved along the guide and are automatically arranged on a molding line that is continuous with some of the columns and curved into a predetermined shape.

Moreover, each of the arranged columns is immovably connected to the base by a guide and a drive mechanism.

Therefore, according to the present invention, the arrangement of the columns can be set extremely quickly and easily, and since columns that do not need to be moved are fixed to the base, the equipment cost can be reduced as much as possible.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the basic configuration of the present invention, FIG. 2 is a perspective view showing the structure of one set of support columns, and FIG.
4 is a perspective view showing a curved laminated timber, FIG. 5 is a schematic plan view showing a conventional example, and FIG. 6 is a sectional view showing the main part thereof. 10: Base, 11: Support, 12: Clamping plate, 13: Clamping tool, 14: Rail (guide), 15: Threaded rod (adjustment mechanism), 16: Slide bearing, 17: Bearing, 18: Drive mechanism, 18a: Motor, 18b = Drive gear, 18c:
Driven gear, 19: Control device, 19a; Control circuit, 19b
: calculation circuit, 19c: measurement circuit. Application agent Hisaichi Matsumoto

Claims (1)

[Claims] 1. A large number of columns are arranged in parallel on the base, a flat plate-shaped clamping plate is placed on the side of each column, and the clamping plate is moved toward and away from each column using a fastener. In a glulam lumber molding machine made of A guide is provided to connect each column to the base so that each column can move in a direction substantially orthogonal to the direction in which the columns are arranged, and the structure is designed to withstand loads in the direction of movement of each column and to allow each column to move independently along the guide during operation. 1. A molding machine for curved laminated lumber, comprising an adjustment mechanism, a drive mechanism for driving each adjustment mechanism, and a control device for controlling the amount of drive of each drive mechanism based on an input data signal.