JPH02305720A - Mesh body mount/dismount device - Google Patents

Abstract

PURPOSE:To reduce the burden of a mesh body and attempt to prolong life by providing a mesh body holding chuck freely ascendable and rotatable to a movable table that is movable along a track provided above a travelling route in the title device of a mesh body for removal of redundant water in the manufacture process of hard wood chip cement board. CONSTITUTION:A mesh body mount/dismount device 50 is formed so that a movable table 53 moves on a portal high structure 51 built astride conveyors of a cement plate travelling route. A frame 55 goes up/down by an actuator 54 is provided to this movable table 53, and the longitudinal direction of the frame 55 is made coincidental with the travelling direction of the cement plate travelling route. And, swinging arms 58 are hung down swingable by actuators 57 at the part in the longitudinal direction of the frame 55, top ends are connected by a connecting member 59, and chucks 69 are mounted to the both ends of the connecting members 58 freely rotatable. With this constitution, life of the mesh body can be prolonged when the mesh body is lifted in the attitude gently curved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for attaching and detaching nets used for removing surplus water from raw materials in the manufacturing process of, for example, hard wood cement boards, inlay boards, etc. This relates to a device for

[Prior Art] A hard wood cement board, which is obtained by mixing wood flakes, cement, water, etc. and forming the mixture into a board shape, is widely used as a material for the exterior walls of buildings.

This hard wood cement board is J.
As disclosed in Japanese Patent No. 058, it is obtained by supplying a raw material consisting of a mixture of wood flakes, cement, water, etc. onto an endless belt, and hardening it 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 upper surface of the raw material, 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 raw material required relatively skill and effort, such as ensuring that the net did not wrinkle and aligning the corners. Furthermore, the work of removing the mesh on the raw material after removing excess water had to be done quietly so as not to damage the product, which required relatively skill and time.

Therefore, devices have been developed to automate these tasks. For example, in the automatic collection device for nets, Japanese Patent Laid-Open No. 60-56
There is one disclosed in Japanese Patent Laid-open No. 725, and an automatic net feeding device is disclosed in Japanese Patent Application Laid-Open No. 60-56727.

[Problems to be Solved by the Invention] However, in the case of the automatic net collection device disclosed in the above-mentioned Japanese Patent Application Laid-open No. 60-56725, when removing the net from the cement board, the net is forced at an acute angle. Even in the case of the net feeding device disclosed in Japanese Patent Application Laid-open No. 60-56727, the automatic collecting device bends the net at a considerable angle, although not all parts of the net are bent.

Such forcible bending of the net has the drawback of damaging the net and shortening its lifespan. Moreover, as a result, there was also a disadvantage that running costs were high.

This invention was made in view of the problems of the conventional technology, and its purpose is to provide a net that can be moved without putting a burden on the net and extend the life of the net. The aim is to provide a body attachment and detachment device.

[Means for Solving the Problems] This invention has been made in order to achieve two objectives, so the gist is that when manufacturing a plate, the surplus material in the raw material is In the net attachment/detachment device, which places a net for removing water, etc., and removes the net from the plate after removing excess water, etc., A movable movable base, a frame supported on the movable base so as to be movable up and down, a plurality of arms rotatably supported and suspended from the frame, and handles provided at both ends of the net body. a chuck that is rotatably supported at the tip of the arm and whose center of rotation is aligned with the center of rotation of the arm 1. It is in the attachment/detachment device.

[Operation] When the handle of the net is gripped by the chuck and the frame is raised to lift the net, the net, which is lifted by holding both ends, bends due to its own weight and curves downward. The chuck and arm rotate in response to the natural curved posture of the net. Therefore, the net body can be moved without being forced into an unreasonable posture.

When placing the net on top of the plate material, the net is lifted to the above state at another location, and then the movable platform is moved onto the conveyance path, the frame is lowered, and the net is gently placed. Place it on the plate material on the conveyance path. In the process of placing the net, the net body gradually changes from a curved posture to a flat plate-like posture, and the chuck and arm rotate in response to the change in the posture of the net body. Therefore, during this time, the net body will not be in an unreasonable posture.

In addition, when removing the net after excess water and the like in the plate raw material is removed, the net is gently lifted and moved by the reverse procedure to the above-mentioned procedure. Even at this time, the net body does not take an unreasonable posture.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings from FIG. 1 to FIG. 9. The mesh body in this example is used for manufacturing hard wood cement boards.

As shown in FIG. 9, the net 100 includes hangers 102 made of metal plates at both longitudinal ends of a rectangular flexible wire net 101.
is set up and configured. A handle portion 103 protrudes from each end of the hanger 102.

FIG. 1 is a plan layout view of a hard wood cement board (board) manufacturing plant in which net attaching/detaching devices, which are the gist of the present invention, are arranged at three locations, and FIG. 2 is a side view thereof.

First, an overview of this hard wood chip cement construction plant will be explained. Hard wood chip cement Saka manufacturing plant is CEMENE! - A hot press device 1 for press-molding temporary raw materials, a cement board conveyance path (plate conveyance path) 10 that conveys the cement board raw material to the hot press device 1 and sends out the cement board after molding, and a cement board conveyance path 10 a net conveying device 20 which is arranged in parallel with the cement temporary conveying path 10 and whose conveying direction is opposite to the conveying direction of the temporary cement conveying path 10;
0, and the upstream side of the hot press device l in the cement board transport path 10 (
On the right side in Figs. 1 and 2), there is a net attachment/detachment device 50 which is placed on the -L side of the cement board conveyance path 10 and the net conveyance device 20, and a hot press device (in the temporary cement conveyance path 10). Current side (left side in Figures 1 and 2)
It consists of a temporary cement conveyance path 10 and a net attachment/detachment device 90 which is placed over a net conveyance device 20.

The cement board conveyance path 10 is equipped with a hot press! The upstream side of the hot press device 1 consists of a first conveyor 11 and the second conveyor 12, and the downstream side of the hot press device 1 consists of a third conveyor 13 and a fourth conveyor 14.

The net conveying device 20 also includes first conveyors 1 arranged in order from the downstream side to the upstream side of the temporary cement conveying path 10;
2nd conveyor 22, i3 conveyor 23, 4th conveyor 2
4, and the fourth conveyor 24 includes a pair of clamp devices 24a and 24b at the front and rear.
ing. The clamp devices 24a and 24b clamp and pull both hangers 102 of the mesh body 100, and tighten the wire mesh 101.
In addition to smoothing out wrinkles, the net attachment/detachment device 50 described below
This is to facilitate the work of lifting the net body 100.

The cleaning device 30 is disposed midway along the second conveyor 22 and includes a high-pressure pump unit 31 and a water sprinkling unit 32. The watering unit 32 is a closed chamber through which the second conveyor 22 passes. and,
When the net 100 conveyed by the second conveyor 22 passes through the watering unit 32, high-pressure water sent from the high-pressure pump unit 31 is sprayed from above the watering unit 32 to wash the net 100. It looks like this.

Next, the net attachment/detaching device, which is the gist of the present invention, will be described in detail.

The net attachment/detachment device 50 disposed on the upstream side of the cement board conveyance path 10 is connected to the first conveyor 11 of the cement board conveyance path IO and the fourth conveyor 24 of the net conveyance device 20. FIG. 3 is a front view of the net attaching/detaching device 50 as seen from the downstream side of the temporary cement conveyance path IO, and FIG. 4 is a side view of the main parts of the net attaching/detaching device 50. The net attaching/detaching device 50 has a sturdy elevated structure 51 that is gate-shaped when viewed from the front, and a cement temporary conveyance path 1 is provided at the top of the elevated structure 51.
A pair of rails (tracks) 52 are provided that extend so as to intersect with the conveyance direction of zero. A movable base 53 is driven by a motor (not shown) and runs on this rail 52.

An actuator 54 is installed on the movable base 53,
A frame 55 assembled into a rectangular shape in plan view by the actuator 54 is guided by a guide rod 60 and suspended so as to be movable up and down. The longitudinal direction of the frame 55 coincides with the '11111 feeding direction of the cement board conveying path 10. A shaft 56 is supported at each end of the frame 55 in the longitudinal direction, with its axis positioned parallel to the moving direction of the movable base 53. Each shaft 56 is driven and rotated by an actuator 57 fixed to the frame 55. Swinging arms 58.58 extending downward are fixed to both ends of each shaft 56, and the tips of the six pairs of swinging arms 58.58 are connected to the connecting member 58.
connected by 9.

As shown in FIGS. 5 and 6, a chuck mount 61 is suspended from each end of the connecting member 59 via a support rod 62 and a guide rod 3 so as to be movable up and down. A support arm 64 having a U-shape in plan view is supported by the support block portion 61a of the chuck mounting base 61 so as to be horizontally movable in the same direction as the moving direction of the movable base 53. That is, the support block part 61a has two support ports 5 and 65 arranged vertically and parallelly with their axes horizontal, which are horizontally movable. It is fixed to both ends of the support arm 64 on the open side. Further, springs 66 are interposed between the support block part 61a and the support arm 64 on both sides, and the springs 66 bias the support block part 61a to be located at the center of the support arm 64. . With this mechanism, the mesh body 1
Even if there is a slight manufacturing error in the distance between the handle portions 103 and 103 of 00, it will not cause a problem when lifting the net body lOO.

An actuator 68 is fixed inside the support arm 64. This actuator 68 is for moving a pair of chuck support blocks 67, 67 located below toward and away from each other as shown by the arrows in FIG. Note that the moving direction of the chuck support block 67°67 is the same as the moving direction of the movable table 53. Each of the chuck support blocks 67 rotatably supports a chuck 69 with a rotating shaft 69a positioned parallel to the moving direction of the movable table 53. That is, the center of rotation of the chuck 69 is the swing arm 58.
The position is parallel to the center of rotation. The claws 69b of the pair of chucks 69, 69 supported by the actuator 68 are positioned to face each other. By bringing the pair of chuck support blocks 67, 67 closer together, the grip portion 1 of the net body 100
03 can be held by the claws 69b of each chuck 69.

Further, a bunker upper presser 70 is provided on the outside of the support arm 64.
is supported so as to be movable up and down, and is biased downward by a spring 71. This hanger upper presser 70 cooperates with a bunker upper presser (not shown) provided on the fourth conveyor 24 of the net body conveying device 20 to clamp the hanger 102 of the net body 100.

The fourth conveyor 24 of the net conveyor 20 is located at the center of the lower part of this high green structure 51, and the fourth conveyor 24 of the net conveyor 20 is located at the center of the lower part of the high green structure 51, and the fourth conveyor 24 is located on the opposite side of the cement board conveying path 10 with the fourth conveyor 24 in between. A cart 80 is prepared for loading the net 100 at times.

On the other hand, the net attachment/detachment device 90 disposed on the downstream side of the cement board conveyance path 1O has the same structure and function as described above, except that the length of the elevated structure is short due to the lack of space for accommodating the above-mentioned trolley 80. There is basically no difference from the net attachment/detachment device 50 on the upstream side. Therefore, the explanation thereof will be omitted, and in the following explanation, the reference numerals of the respective constituent parts of the net attaching/detaching device 90 will be referred to as those of the constituent parts of the printing body moving/detaching device 50.

Next, the operations of the two mesh attachment/detachment devices 50 and 90 will be explained together with the operation of the entire hard wood cement board manufacturing plant.

First, the trolley 80 loaded with a predetermined number of nets 100 is set at a predetermined position below the net attaching/detaching device 50, and the movable base 53 is moved above it. At this time, the longitudinal direction of the net body 100 is made parallel to the conveyance direction of the cement board conveyance path 10.

Next, the frame 55 is lowered with each swing arm 58 facing directly downward and each chuck 69 kept in a horizontal position. When each chuck 69 reaches a height at which it can grip the handle portion 103 of the net body 100, the frame 55 stops. Then, each actuator 68 closes each lever 69 to grip the four handles 103 of the net 100.

After each grip portion 103 is clamped by each chuck 69, the frame 55 rises and lifts the net body 100.

At this time, the wire mesh 101 of the mesh body 100 bends and curves due to its own weight. On the other hand, at the same time as the frame 55 starts to rise L, each t5i movable arm 58 is driven by each actuator 57 and rotates to a predetermined angle so that its tip gradually turns inward, as shown by the imaginary line in FIG. Each chuck 69 freely rotates relative to the chuck support block 67 as shown in FIG. The swing arm 58
The rotational speed 1 is set to reasonably correspond to the natural curved posture of the mesh body 00 due to the weight of the wire mesh 101, and as a result, the mesh body 100 is in a gentle curved state in a very natural posture. It will be lifted up. In particular, since each chuck 69 also rotates, the mesh body 1
00 will not be bent at the joint between the wire mesh 101 and the hanger 102.

Next, the movable table 53 is moved in parallel to the position directly above the cement temporary conveyance path 10 while the net body 100 is lifted up.

Then, the frame 53 gradually descends, and the first conveyor l
The mesh body 100 is gently lowered onto the cement board material on the template placed at a predetermined position on the screen.

At this time, the net body lOO takes on the opposite shape from when it was just lifted, that is, it gradually changes from a curved posture to a horizontal flat posture. On the other hand, at the same time that the central part of the wire mesh 101 comes into contact with the cement board raw material A, each swinging arm 58 is driven by each actuator 57 and rotates so that its tip is gradually directed outward, and each chunk 69 is moved to the chuck support block. Rotate relative to 67. As a result, the posture change of the mesh body 100 is carried out extremely effortlessly, and the mesh body lO
No unreasonable burden is placed on O.

Then, when the mesh body lOO is placed on the cement board raw material and becomes flat, the swinging arm 58 is oriented vertically and each chuck 69 is brought into a horizontal position. At the same time, the swing arm 58 stops rotating. Thereafter, each chuck 69 is opened by each actuator 68, and the net 100 is released from the upstream net attachment/detachment device 50. Note that the above-mentioned operation of placing the mesh body 100 on the cement board raw material is carried out on the first conveyor 11.
or under stopped conditions.

After removing the net body 100 from each chuck 69, the frame 55 rises, and the movable base 53 moves seven rows above the cart 80 again. Then, the mesh body lOO is sequentially placed on the cement board raw material A on the first conveyor 11 according to the same procedure as described above. A predetermined number of mesh bodies 1 from the trolley 80
00 to the cement board conveyance path 10, the upstream net attachment/detachment device 50 comes to stop above the net conveyance device 20.

On the other hand, when the net body 100 is placed on the cement board raw material A, the first conveyor 11 of the cement temporary conveyance path 10 starts operating, and the cement board raw material A is transferred to the hot press device via the second conveyor 12. Sent to 1. The cement board raw material A is heated and pressurized by this hot press device 1 to harden it.

At this time, excess water contained in the cement board raw material A is removed.

The processed cement board A' is sent to the fourth conveyor 14 via the third conveyor 13, and the fourth conveyor 14 stops when the cement board A' is located directly below the net attachment/detachment device 90 on the downstream side. At this time, the movable platform 53 of the net attaching/detaching device 90 is located on the temporary cement conveyance path 10, J:, and operates in the same manner as the net attaching/detaching device 50 on the upstream side to place it on the cement plate A'. The placed net body 100 is lifted up. Then, the movable table 53 of the net sliding device 90 moves parallel to the net conveying device 20 and stops, and the net 100 is lowered onto the first conveyor 21 which is stopped. Even during this lifting and lowering, the posture of the net 100 is extremely easily changed, and no undue burden is placed on the net 100.

When the net 100 is placed, the first conveyor 21 starts operating and sends the net 100 to the second conveyor 22. While being conveyed by the second conveyor 22, the net 100 passes through the watering unit 32 of the cleaning device 30. High-pressure water is sprayed onto the net 100 within the water sprinkling unit 32, and cement slag adhering to the net 100 is washed away.

The cleaned net body 100 is sent from the second conveyor 22 to the fourth conveyor 24 via the third conveyor 23, and the net body 100
The fourth conveyor 24 stops when No. 0 is located directly below the upstream net attachment/detachment device 50. Here, both hangers 102 of the net body 100 are clamped by the clamp devices 24a and 24, respectively.
It is clamped and pulled in the longitudinal direction by b.

Next, the frame 53 of the net attaching/detaching device 50, with the swinging arm 58 directed vertically downward, is lowered. Then, each hanger upper presser 70 contacts the hanger 102 of the net body 100, and the upper presser 70 contacts the hanger 102 of the net body 100, and the elastic force of the spring 71 presses the vicinity of the handle portion 103 of the hanger 102. Hold in a horizontal position. In addition, each net body 100
Even if the height position of the hanger 102 varies due to differences in the warped state of the It is always held down by the constant elastic force of the spring 71.

After this, each chuck 69 is closed in the same manner as in the above-mentioned operation, and the grip portion 103 of the hanger 102 is held by the chuck 69, and the mesh body 100 is lifted up in a curved position, and the 1 is placed on the cement board raw material A on the conveyor 11. Of course, at this time as well, the posture of the net body 100 can be changed quite easily.

Thereafter, the net 100 is supplied to the cement board raw material A, the net 100 is removed from the processed cement board A', the net 100 is cleaned, and the net 100 is resupplied to the cement board raw material. This series of flow of the net body 100 becomes a closed loop. Therefore, there is no wasted work (and productivity is very high).

As mentioned above, the net 100 is connected to the net attachment/detachment device 50.90.
When it is lifted up, the wire mesh 101 maintains a natural and moderately curved posture due to its own weight, and can be moved while maintaining this posture, so that an unreasonable burden is not placed on the mesh body 100. Without a doubt, net body 1
00's lifespan is much longer than before.

It goes without saying that the mesh sliding device according to the present invention can be used not only for manufacturing the above-mentioned cement board, but also for the construction of insulation boards, etc. [Effects of the Invention] As explained above, According to the present invention, the net can be hung in a natural and moderately curved posture, and can be moved while maintaining that posture. It has an excellent effect of extending lifespan.

[Brief explanation of drawings]

The drawings from FIG. 1 to FIG. 9 show one embodiment of the present invention, and FIG. Fig. 2 is a side view of the arrangement, Fig. 3 is a front view of the net attaching/detaching device which is the gist of the invention, Fig. 4 is a side view of the same, and Fig. 5 is an enlarged front view showing the chuck part in an unclamped state. , Fig. 6 is an enlarged 0111 diagram of the same, Fig. 7 is a front view of the chuck in the clamped state, Fig. 8 is a side view of the chuck part showing the state in which the chuck is rotated when the net body is lifted, and Fig. 9 is a FIG. 3 is a plan view of the net. 10... Cement board conveyance path (plate conveyance path), 50.9
0...Network attaching/detaching device, 52...Rail (track), 53...Movable base, 55
...Frame, 58.. Swinging arm, 69.. Chuck, 100.. Net body, 103.. Handle part, A. Cement board raw material (board material), A'.. Cement board (board body).

Claims (1)

[Claims] (1) When manufacturing a plate, a net is placed on top of the plate raw material to remove excess water, etc. in the raw material, and the net is removed from the plate after excess water, etc. is removed. In the body attachment/detachment device, there is a movable platform that is movable along a track installed above the conveyance path of the plate, a frame that is supported by the movable platform so that it can be raised and lowered, and a frame that is rotatably supported by the frame and suspended. A plurality of lowered arms and a plurality of lowered arms are rotatably supported at the ends of the arms in order to grasp the handles provided at both ends of the net, and the center of rotation is relative to the center of rotation of the arms. A net body attaching/detaching device characterized by comprising a chuck positioned in parallel.