JPS5862019A - Method of conveying high temperature resin sheet - Google Patents

Abstract

PURPOSE:To convey a high temperature resin sheet with the number of steps for clamping the sheet and troubles associated therewith being reduced, by cooling only both side edges of the high temperature resin sheet that is extruded from an extruder, and automatically clamping said edges by clamping apparatuses provided to conveying chains. CONSTITUTION:The high temperature resin sheet 3 that is extruded from the T-die of an extruder 1 is received by a belt conveyor 4. A second belt conveyor 5 is positioned at the same height as the conveyor 4 with a space (a) between them in the conveying direction A, and the conveying chains with clamping apparatuses 8 are arranged at the opposite sides of the belt conveyor 5. Cooling means, for example, air blowing outlets 6, 6 are provided over the belt conveyor 3 to cool and harden both the side edges of the sheet 3. The conveying chains 8 each have the plurality of the clamping apparatuses 9 with a certain intervals between them. As shown, when elements 9a and 9b are engaged, the clamping apparatus 9 is rotated about a point 0 to automatically clamp the edge. According to this method, the coveying is carried economically and satbly.

Description

[Detailed description of the invention] The present invention relates to a method for conveying a high temperature resin sheet.

Conventionally, the sheet-shaped thermoplastic high-temperature resin extruded from an extruder is clamped to a conveyor chain and then conveyed for processing such as shaping and trimming. However, since high-temperature resin sheets are soft, they cannot be transferred to the conveyor chain. The clamping of the sheet did not work properly, and the sheet had to be manually clamped to the conveyor chain during work-in and setup.

Therefore, not only does it take a lot of man-hours to clamp the sheet to the conveyance chain during work in progress and setup, but
The temperature of the resin sheet immediately after extrusion was 200 to 260°C, posing a danger of burns to workers.

The present invention solves the above-mentioned drawbacks by cooling and hardening only both side edges of a high-temperature resin sheet extruded from an extruder before being transferred to a conveyor chain, and using a clamping device provided on the conveyor chain. By automatically clamping both sides of a high-temperature resin sheet that has been cooled and hardened, the number of man-hours required for clamping the conveyor chain by the worker during work in progress and setup can be reduced, and the risk of worker burns can be avoided. That is.

Hereinafter, one method of the present invention will be explained based on the apparatus shown in the drawings.

In the first embodiment shown in FIGS. 1, 2, and 5, 1
#i An extrusion air 2 for extruding the melted resin is a T-die for forming the extruded resin into a sheet 5, and 4 is a belt conveyor for receiving the extruded sheet 5. Then, with a slight gap in the sheet conveyance direction A@KFi of the belt conveyor 4, another belt conveyor 5 having the same height as the belt conveyor 4 and conveyance chains 8 with clamp devices located on both sides thereof are arranged. There is.

Above the belt conveyor 4, an air outlet 6.6, which is a feature of the present invention and serves as a cooling means, is located, and the both side edges of the sheet 3 are cooled and hardened with air from the air outlet 6.6. However, a trap is provided so that the movement from the belt conveyor 4 to the belt conveyor 5 and the clamping can be performed smoothly (see FIGS. 2, 3, and 4).

A plurality of clamp devices 9 are provided around the conveyor chain 8.8 at regular intervals #''.

As shown in FIG. , a roller 9 that is one of the components of the clamping device 9
Due to the contact between the field and the cam 9b, the cam 9b rotates around point 0 and is automatically clamped. From that K,
The sheet 3 will be transported to the next process, which is a forming and trimming process.

Next, the operation of the above configuration will be explained. The high temperature resin sheet 3U, if extruded from the extruder 1 and the T-die 2, is received by the belt conveyor 4.

The sheet 5 received by the belt conveyor 4 is
Only the side edges of the sheet are cooled and hardened by air from the air outlet 6.6 located above the sheet. At this time, since only both side edges of the sheet 5 are cooled, the amount of heat required for cooling is minimized.

The sheet 5, which has been cooled and hardened only on both side edges, is smoothed by the belt conveyor 5 which is at the same height as the belt conveyor 4 with a slight gap a from the belt conveyor 4. and reaches the belt conveyor 5 (see FIGS. 2, 3, and 4).

Since the nine sheets 5Fi are moved to the belt conveyor 5 and their both side edges are hardened, they are clamped by clamping devices 9 provided on the conveyor chains 8.8 on both sides of the belt conveyor 5 as shown in FIGS. It is automatically clamped as shown in (c) K and transported to the next process by the transport chain 8.

Next, another embodiment of the present invention will be described, in which the same components as those in the previous embodiment will be given the same reference numerals and the description thereof will be omitted.

In the second embodiment shown in FIG. 6, FIG. 7, FIG. 8, and FIG. ) 10.10 is arranged and the conveyor chain 8 is extended so as to wrap around the heald conveyor 4. Therefore, there is no gap a between the belt conveyor 4 and the conveyor chain 8 as in the previous embodiment. Furthermore, although there is a gap K between the rounding plate 1o whose both ends are cooled and hardened and the electric transmission chain 8, the sheet 3 can be prevented from sagging as shown in FIG. 9.

Therefore, the sheet is easily clamped by the three-sheet clamp device 9 and transported to the next process.

The fifth embodiment shown in FIG. 10 has a cooling roll 11 instead of the air outlet as the cooling means of the first embodiment.
11 is provided, and the reaction force of the cooling roll 11°11 is received by a play 10.10 provided inside the belt conveyor f.

The fourth embodiment shown in FIG. 11 uses a cooling block 15 driven by a cylinder 12 instead of the cooling roll 11, 11 as the cooling means of the third embodiment.

Although several embodiments have been described above, the present invention is not limited to the above embodiments, and it goes without saying that the cooling means may be provided below the seat 3 or both above and below. It is.

As is clear from the above description, the present invention is to cool only both side edges of a high-temperature resin sheet extruded from one extruder, and to automatically clamp the both side edges with a clamping device provided on a conveyor chain. By making this possible, it is possible to reduce the number of man-hours required for the worker to clamp the sheet to the conveyance chain during work-in-progress and setup, and it is also possible to avoid the risk of burns to the worker.

[Brief explanation of the drawing]

Figure 1 is a simplified perspective view showing the first embodiment of the present invention, Figure 2 is a simplified plan view of Figure 1, Figure 3 is a simplified front view of Figure 1, and Figure 4 is a simplified perspective view of Figure 1. X-X line cross-sectional view of Figure 5, Figure 5 0),
(b), (c), and (b) are simplified sectional views showing the clamping process of the clamping device to the sheet, and FIG. 6 is the second embodiment of the present invention.
7 is a simplified front view of FIG. 6, FIG. 8 is a simplified sectional view taken along the Y-Y line of FIG. 6, and FIG. 9 is a simplified plan view of FIG.
10 is a simplified perspective view showing the third embodiment, and FIG. 11 is a simplified front view showing the fourth embodiment. 1... Extruder 5... Sheet 5... Conveyance chain 6... Air outlet 9... Clamp device 11... Cooling roll 13... Cooling block (1 person outside) Fig. 11 Figure 2 No. 35gJ Spear 4 Figure 25 (4) (b) (
c) (d) Fig. 16, Fig. 18, Fig. 29, IO diagram.

Claims (1)

[Claims] (1) A method in which a high-temperature resin sheet extruded from an extruder is conveyed by a conveyance chain with both sides of the high-temperature resin sheet clamped by a clamp device provided on a conveyance chain, wherein the high-temperature resin sheet extruded from the extruder is A method for conveying a high-temperature resin sheet, characterized in that only both side edges of the high-temperature resin sheet are cooled in advance before being transferred to the conveyance chain, and are automatically clamped by a clamping device provided on the conveyance chain.