JPH04201511A - Transfer device for tray - Google Patents

Abstract

PURPOSE:To make a ridge of a molded body and a ridge of a bending section of a tray conformed with by supporting a ridge section of the balancing section of tray from the lower side, positioning the ridge of the bending section of the molded body right above the ridge of the balancing section of the tray and transferring. CONSTITUTION:A transfer device 1 is provided with a roller conveyor 2 and a plurality of positioning rolls 3, and the roller conveyor 2 passes through the lower side of an extrusion molding machine 4 and a mold 5 synchronize a tray 6 with the extrusion speed to, for example, a press molding machine as the following process and transfers at the speed almost equal to the extrusion speed, and also provided with a channel 2a into which a foot section 6a of the tray 6 is fixed to conform a through-core of the bending section of the tray 6 with a through-core of the bending section of the mold 5. The ridge of bending section of the tray 6 is supported right below by the positioning roll 3 and so disposed as to conform the through-core of the roll 3 with the through-core of the bending section of the mold 5. Thus the tray can be transferred with the through-core of the bending section of the mold with the ridge of the bending section of the tray at all times, even if the dimension of tray is varied.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a device for transporting a tray for transporting an uncured molded product extruded from an extrusion molding machine and having a substantially V-shaped cross section to the next step in the extruded shape.

[Conventional technology]

Extrusion molding is one type of method for producing building materials using inorganic cured bodies. In the extrusion method, in general, inorganic hydraulic substances such as cement,
A composition obtained by pre-mixing and kneading water and reinforcing fibers and aggregates as necessary is extruded into the desired shape using an extrusion molding machine, and the extruded uncured molded product is left to cure and harden. After forming a pattern on the surface by press molding or the like, the desired building material is manufactured by curing and hardening. Note that the molded product extruded from the mold of the extrusion molding machine is still soft in an uncured state, so as soon as it is extruded, it is received from below by a tray shaped to follow the molded product at a speed approximately equal to the extrusion speed. After being supported by this tray to prevent it from deforming, it is transferred to the next process such as press molding or curing using a conveyor or the like while being placed on the tray. Incidentally, when extrusion-molding accessories such as corner materials that have a generally V-shaped cross section, the tray that receives the extruded product is also approximately V-shaped like the extruded product. When an extruded molded product is received in a tray shaped like a cut-off circuit, the ridgeline (line core) of the bent part of the extruded molded product matches the ridgeline of the bent part of the tray along the extrusion direction. Is it necessary to move the tray so that it rests on the tray? Yes. That is, if there is even a slight deviation in the width direction, the accurately extruded molded product will lose its shape and cannot be manufactured into a product. Conventionally, a guide is provided on the conveyor frame, and one end of the tray is brought into contact with the guide to position the tray relative to the extrusion mold. The trajectory was adjusted so that it always matched the ridgeline, and the material was transferred to the bottom of the extrusion mold.

[Problem to be solved by the invention]

However, even if the tray is positioned as described above, the widthwise dimension of the tray may vary, so it is not possible to always match the ridgeline of the molded body with the ridgeline of the tray. . Therefore, the inventors of the present invention have previously proposed a tray transfer device 30 as shown in FIG. That is, this transfer device 30 is provided with a positioning roll 33 below an extrusion molding machine 31 and a mold 32, and a bent part (mountain part) of a tray 36 carried on a conveyor 35 is placed in a concave part 34 of this roll 33. By engaging 37,
This is an excellent feature in that even if there is variation in the width of the tray 36, the ridgeline of the bent part of the molded body 38 extruded from the mold 32 and the ridgeline of the bent part of the tray 36 are always aligned. However, in the case of this transfer device 30, if there are variations in the height dimension of the tray 36, or even if the tray has good dimensional accuracy at the beginning of use, the width of the tray 36 will expand and the height will increase due to repeated use. If this decreases, it may become impossible to accurately place the molded body 38 on the tray 36. That is, when the tray 36 is high, it hits the positioning roll 33 and stops, and when it is low, the positioning roll 33 does not work sufficiently, and the ridgeline of the bent part of the molded body 38 is deviated from the ridgeline of the bent part of the tray 36. There is a risk that it will become. The present invention has been made in view of the above circumstances, and even if the dimensional accuracy of the tray width, height, thickness, etc. is poor, the ridgeline of the bent part of the molded article always matches the ridgeline of the bent part of the tray. It is an object of the present invention to provide a tray transfer device that can transfer a tray so as to accurately place a molded article on the tray and convey it to the next process.

[Means to solve the problem]

In order to achieve such an object, the present invention receives from below an uncured molded product extruded from an extrusion molding machine and is bent in the shape of a disconnected circuit, and while maintaining the shape of the disconnected circuit, the present invention A device for transporting a tray shaped like a cut-off circuit having approximately the same bending angle as the molded body to be transported to a process, wherein the ridgeline portion of the bent portion of the tray is received from below, and the molded body being pushed out is bent. The gist of the present invention is to provide a tray transfer device characterized by comprising a tray positioning means for positioning and transferring the tray so that the ridgeline of the bent portion of the tray is placed directly above the ridgeline of the bent portion of the tray.

[For production]

By providing a tray positioning means that receives the tray from below along the ridgeline of the bent portion of the tray, even if the dimensional accuracy of the tray in the height direction is poor or there is a deviation in the width direction, the bent portion of the tray can be fixed. The ridgeline of the molded product can be always placed directly below the ridgeline of the bent part of the molded product extruded from the extrusion molding machine.

【Example】

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows an embodiment of the tray transfer device according to the present invention, seen diagonally from above, and FIG. 2 shows a sectional side view of the tray being positioned by a positioning roll. As shown in the figure, this transfer device 1 includes a roller conveyor 2
and a plurality of positioning rolls 3 as positioning means. The roller conveyor 2 passes under an extrusion molding machine 4 and a mold 5 to the next process, such as a press molding machine (not shown).
The tray 6 is synchronized with the extrusion speed and transported at a speed substantially equal to the extrusion speed. Also, a groove 2 into which the leg portion 6a of the tray 6 is fitted so that the alignment of the bent portion of the tray 6 and the alignment of the bent portion of the mold 5 are substantially aligned.
It is equipped with a. The positioning roll 3 is adapted to receive the ridgeline of the bent portion of the tray 6 from directly below, and is arranged so that the center of the roll 3 coincides with the center of the bend of the mold 5. In addition, each roll 3 has its rotating shaft inserted into an elongated shaft hole (not shown) so that it can freely slide up and down, and a biasing means having a bias force that is weaker than the weight of the tray 6. (not shown). The operation of this transfer device 1 will be explained as follows. ■ Both legs 6a of the unloaded tray 6 are placed in the groove 2.
When placed on the roller conveyor 2 so as to fit into the tray 6, the tray 6 is transferred toward the mold 5 at a speed substantially equal to the extrusion speed. Furthermore, by placing the legs 6a of the tray 6 so as to fit into the grooves 2a, the ridgeline of the bent portion of the tray 6 is aligned with the mold 5.
It almost coincides with the center line of the bent part. (2) When the mold 5 is transported to the location of the positioning roll 3 placed in front of the mold 5, the positioning roll 3 enters the lower side of the chevron-shaped top of the tray 6 and contacts and receives the ridgeline of the bent portion from below. Due to this contact, the ridgeline of the bent portion of the tray 6 is completely aligned with the center of the bent portion of the mold 5. In addition, since the positioning roll 3 is always urged upward via the urging means, it always comes into contact with the bent part of the tray 6 even if the height position of the bent part is shifted. Further, since the biasing force is smaller than the weight of the tray 6, the tray 6 does not lift up from the roller conveyor 2. (2) The molded product 7 extruded from the mold 5 is continuously placed on the tray 6 which has reached the bottom of the mold 5. At this time, the ridgeline of the bent portion of the tray 6 is aligned with the center of the bent portion of the mold 5 by the positioning roll 3, so the ridgeline of the bent portion of the molded body 7 is aligned with the ridgeline of the bent portion of the tray 6. The mold 5 is placed directly above the ridgeline of the mold 5.
It is sent to the next process while maintaining the same shape as it was extruded. The tray transfer device according to the present invention is not limited to the above embodiments. For example, in the above embodiment, the positioning roll swings up and down and is always urged upward via the urging means, but a fixed type may also be used, or a driving means may be attached to the positioning roll. The positioning roll may be synchronized with the extrusion speed to serve as a means for transporting the tray. Furthermore, the positioning means may be pole-shaped instead of roll-shaped.

【Effect of the invention】

Since the tray transfer device according to the present invention is configured as described above, even if the dimensions of the tray vary in the width direction or the height direction, it will always pass through the bent part of the mold. The tray can be transferred so that the ridge lines of the core and the bent portion of the tray coincide. Therefore, the molded product extruded from the mold can always be placed on the mold without losing its shape, thereby reducing product defects and improving productivity.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment of a tray transfer device according to the present invention, FIG. 2 is a cross-sectional view of a positioning means portion thereof, and FIG. 3 is a perspective view of a conventional tray transfer device. . 1.30... Transfer device 3.33... Positioning roll (positioning means) 4.3
1... Extrusion molding machine 6.36... Tray 7.38... Molded body

Claims (1)

[Claims] (1) An uncured molded product extruded from an extrusion molding machine and bent into a roughly F-shaped cross section is received from below, and the molded product is transported to the next process while maintaining the roughly F-shaped shape. A device for transferring a tray having a substantially square cross-section and having corners, the ridgeline portion of the bent portion of the tray is received from below, and the ridgeline of the bent portion of the extruded molded product or the ridgeline of the bent portion of the tray is transferred. A tray transfer device comprising tray positioning means for positioning and transferring the tray so that it is placed directly above.