JPH0417843B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a net supply device used, for example, for separating excess water in the manufacturing process of hard wood cement boards.

Hard wood cement boards, which are obtained by mixing wood flakes, cement, water, etc. and molding the mixture into a board shape, are widely used as materials for the exterior walls of buildings.

This hard wood cement board is, for example,
As described in Publication No. 140058, it is obtained by supplying a mixture of wood flakes, cement, water, etc. to a formwork placed on a mesh delivery device, and hardening this by heating and pressurizing it. . If the excess moisture generated during this hardening process is not removed, cavities or layer cracks will occur in the hard wood cement board.

As a method for removing this excess water, a mesh such as a wire mesh is placed on the top surface of the mixture, and when pressurized with a press, water is removed from the voids of the mesh. The work of placing the net on top of this mixture requires corner alignment, etc., and requires relatively skill. Furthermore, the amount of nets to be handled is large. Moreover, the mixture before hardening is easily deformed even by a slight force. It is necessary to quickly place the net without applying unnecessary force and remove it gently after separating the excess water. If the net is misaligned or wrinkled, dehydration may not be carried out sufficiently or the product may be damaged. However, no apparatus has been proposed that can sequentially place nets on the mixture that is continuously conveyed in this surplus water separation process.

The present invention has been made focusing on the above points,
To provide a net supply device which temporarily stores nets in a storage rack and takes them out one by one from the storage rack and places them on a mixture.

That is, the net supply device of the present invention includes a storage rack having parallel rails for suspending and supporting a net provided with a hanger on one side by supporting both ends of the hanger, and a storage rack that pulls both ends of the hanger of the net. a mesh feeding device for feeding out the netting; an arm for pushing the hanger from the parallel rails of the storage rack and guiding it to the mesh feeding device; It is characterized by comprising a net body support device having a tension roll.

The details of the present invention will be explained below based on the drawings showing one embodiment thereof.

In the figure, reference numeral 1 denotes a wood cement material made of a mixture of wood flakes, cement, water, etc., which is spread out on a template 3 and placed in a mat shape. This pine-shaped wood chip cement material 1 is being transported on a transport belt 2 in the direction of arrow a. Above the transfer belt 2, two storage racks 5 for storing nets 4 for separating excess water are placed on a portable pedestal 6. Further, on the left side, a net feeder 9 is installed, and an endless belt 8 guided by four pulleys 7 is rotating in the direction of arrow b. Above the storage rack 5 is a small cylinder 1.
At the tips of the rods 12 and 13 of the large cylinder 11, an arm 14 is arranged which is pivoted and supported at two points.

As shown in FIG. 2, the net body 4 is composed of a hanger 15 and a net 16 fixed on one side to the hanger. All of them are made of metal or plastic, and the mesh 16 is made of a highly flexible material. This net 4 is suspended and supported by parallel rails 17 of the storage rack 5. For hanging, hanger 15 is used as shown in Figures 1 and 3.
Both ends of are placed on the parallel rails 17. In FIG. 3, for convenience of illustration, only one net 4 is placed on the parallel rail 17, but as shown in FIG. 1, a large number of nets 4 can be suspended.

On the other hand, a net supporting device 20 is installed opposite to the lower surface of the endless belt 8 of the net feeding device 9. The net support device 20, as shown in FIG.
It consists of several support plates 18 and a back tension roll 19 provided between them. A pair of hooks 21 are attached to the endless belt 8 of the mesh feeding device 9 at a predetermined pitch, and the interval between the hooks 21 is set to be slightly wider than the support plate 18 and the parallel rail 17.

The mesh supply device configured as described above operates, for example, as follows.

First, a storage rack 5 on which a large number of nets 4 are suspended.
is arranged by the portable pedestal 6 directly below the arm 14 and near the upper end of the net feeder 8. Next, the large cylinder rod 13 retracts, and the arm 14 rotates around the tip of the small cylinder rod 12, directing its tip behind the hanger 15 of the leftmost net 4. Thereafter, when the small cylinder rod 12 is retracted, the tip of the arm 14 comes into contact with the back surface of the net hanger 15, as shown in FIG. Furthermore, when the small cylinder rod 12 and the large cylinder rod 13 extend at the same speed, the hanger 15 is pushed out between the net feeding device 8 and the net supporting device 20. The net feeding device 8 rotates and the hook 21 moves to the hanger 15.
When the net body support device 2 is pulled as shown in Fig. 4,
0 in the direction of arrow c. At this time, since the back tension roll 19 is rotating in the direction of arrow d, the net 16 is flexible and does not wrinkle even if the net support device 20 is steeply inclined. Note that the hook 21 can be modified in various ways, such as a hook shape or a chuck shape.

The net feeding device 8 rotates at a speed substantially synchronized with the transfer belt 2 for the wood chip cement material 1, and the hook 21 places the hanger 15 just in front of the left end of the wood chip cement material 1 on the transport belt 2, and the net 16 Gently place it on the wood piece cement material 1. Then, when the hook 21 reaches the pulley 7 at the tip, it comes off from the hanger 15 and rotates upward.

The above operations are repeated one after another, and the net body 4 is continuously placed on the wood chip cement material 1. Thereafter, this wood chip cement material 1 is inserted between the hot plates 22, 22, as shown in FIG.
Pressure is applied in step 5 to remove excess water and mold and harden.

After the storage rack 5 has finished supplying the nets 4, it is transported on a portable pedestal 6 to a separately installed net collection device. In the net recovery device, the net 4 is removed from the molded wood cement board and suspended again on the parallel rail 17 of the storage rack 5.

In this way, the net 4 can be smoothly circulated through the line.

The portable frame 6 includes, for example, a panel 23 on which the storage rack 5 is placed, a free roller 24 provided on the lower surface of the panel, a drive wheel 25 that moves the panel 23 in the transverse direction of the transfer belt 2, and a free roller that moves up and down. It consists of an air cylinder 26.

In this way, the storage racks 5 are successively fed into predetermined positions.

Further, the mesh feeding device 9 can be modified in various ways, such as one in which hooks are attached to both edges of a belt, and one in which hooks are attached to a pair of chains at predetermined pitches.

The arm 14 also does not use a pair of large and small cylinders,
Any suitable known crank device may be used, and conversion to a robot or the like is also possible.

The net supply device of the present invention described above is capable of placing a large amount of nets on a conveyed object running on a line without continuously applying unnecessary force.

Furthermore, there is no risk of wrinkles occurring in the mesh, and therefore high-quality hard wood cement boards and the like can be mass-produced.

[Brief explanation of drawings]

FIG. 1 is a side view of a net supply device of the present invention, FIG. 2 is a front view of a net suitable for implementing the present invention, FIG. 3 is a partially enlarged perspective view of parallel rails of a storage rack, and FIG. The figure is a partially enlarged perspective view of the net support device, and FIG. 5 is a side view of the heating and pressing device. 1... Wood chip cement material, 2... Transfer belt,
4...Network, 5...Storage rack, 9...Network delivery device, 14...Arm, 15...Hanger,
16... Net, 17... Parallel rail, 18... Support plate, 19... Pack tension roll, 20...
Net support device, 21... hook.

Claims (1)

[Claims] 1. A storage rack having parallel rails for suspending and supporting a net provided with a hanger on one side by supporting both ends of the hanger, and a net feeding device for feeding out the net by hooking both ends of the hanger of the net. an arm for pushing the hanger from the parallel rails of the storage rack and guiding it to the net feed-out device; a net support device provided opposite to the net feed-out device and having a support plate and a back tension roll; A net feeding device characterized by comprising: