JPH0216239Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a heating and conveying device for a plate-like object, which is used for heat-treating a plate-like object that has adhesive properties in a heated state.

(Prior art) In recent years, plastic plates that can be press-formed instead of steel plates have become popular for the purpose of reducing the weight of automobile parts, etc., and heating furnaces are being used to preheat these plates before pressing. A heating conveyance device for plate-like objects is used, which has a wire conveyor installed inside. However, this type of plate-like object is soft and sticky when heated and sticks to the wire conveyor, so when processing plate-like objects of different colors, the wire must be replaced or thoroughly cleaned each time. This has the disadvantage that it takes a lot of time and effort to replace the product.

(Purpose of the invention) The present invention has been completed with the aim of solving these conventional drawbacks and creating a heating conveyance device for plate-like objects that can quickly and easily change types to plate-like objects of different colors. It is something.

(Structure of the invention) The present invention is based on a method in which a plurality of rotatable shafts, each having a plurality of fixed bars around the periphery, are passed through the interior of the heating furnace between support stands provided on the inlet side and the outlet side of the heating furnace. They are arranged parallel to each other, and below these shafts there is a moving bar that rises from the gap between the shafts, lifts the plate-like object on the fixed bar, moves it forward by one pitch, and then lowers it repeatedly. This will be described in detail below with reference to the illustrated embodiments.

In the figure, 1 is a heating furnace that is made of heat insulating material and equipped with an appropriate heating source such as an infrared radiant heater. Book shafts 4 penetrate the inside of the heating furnace 1 and are installed parallel to each other. Each shaft 4 has brackets 5 at both ends thereof as shown in FIG.
Two fixing bars 6 are provided between these brackets 5 above and below the shaft 4. In the embodiment, two fixing bars 6 are provided around each axis 4, but the bracket 5 may be made into a regular triangle and three fixing bars 6 may be attached to each vertex thereof, or four or more fixing bars 6 may be provided as a regular polygon. It may be attached to a shape, and furthermore,
The fixing bar 6 may be a stainless steel wire or the like. Each shaft 4 is provided with a handle 7 at both ends, and each shaft 4 is rotated by the handle 7 so that one of the fixed bars 6 provided around it is positioned above, and the fixed bar 6 of each shaft 4 is placed on a horizontal surface. can be configured such that the plate-like object 20 is supported on its upper surface. Below these shafts 4 and inside the supports 2 and 3, a pair of movable supports 8 and 9 are installed on the trolley 1.
It is supported by lifting cylinders 12 and 13 of 0 and 11. As shown in FIG. 3, a large number of arms 14 are projectingly provided on the upper surfaces of the movable supports 8 and 9 in correspondence with the gaps between the shafts 4, and a movable bar 16 is mounted on a holder 15 at the upper end of each arm 14. It is supported in a detachable and rotatable manner and penetrates the inside of the heating furnace 1 . These movable bars 16 rise from the gap of the shaft 4 by the operation of the lifting cylinders 12 and 13, and move the plate-shaped object 20 supported on the fixed bar 6 of the shaft 4 to the fixed bar 6.
The trolley 10,
By advancing the plate 11 by a predetermined distance, the plate-like object 20 can be advanced by one pitch.
Thereafter, the movable bar 16 descends below the fixed bar 6, places the plate-shaped object 20 on the fixed bar 6, and places the plate-like object 20 on the fixed bar 6.
The movement of returning to the initial position shown in FIG. 1 by retracting 0 and 11 is repeated.

In this structure, a plurality of shafts 4 are disposed parallel to each other and pass through the inside of the heating furnace 1 between support stands 2 and 3 provided at the inlet and outlet sides of the heating furnace 1. As shown in FIG. 4, the plate-like object 20 is supplied onto the fixed bar 6 of the shaft 4, and the movable bar 16 provided below the shaft 4 is raised from the gap between the shafts 4 as shown by the dashed line in FIG. The plate-shaped object 2 on the fixing bar 6
0, then move the bar 16 to the position shown in Figure 5.
By moving the plate-like object 20 forward by one pitch, and then repeating the movement of lowering and retracting the moving bar 16 as shown in FIG. It heats the inside while moving it. As a result, as described above, a part of the sticky plate-like material adheres to the fixing bar 6 in the heated state, but when changing the product type to a plate-like material 20 of a different color, the handle A new fixing bar 6 can be moved to the upper surface by operating the shaft 4 around which a plurality of fixing bars 6 are provided. In addition, the moving bar 16 also includes the arms 1 of the moving supports 8 and 9 as described above.
By rotating the moving bar 16, a new supporting surface can be moved to the upper surface.
After use, both the upper and lower sides of the bar 6 can be easily replaced with new moving bars, and the product type can be changed to a plate-like object of a different color in a very short time.

(Effects of the invention) As is clear from the above explanation, the present invention allows for quick and easy replacement work for plate-like objects of different colors, and eliminates the need for wire replacement and wire cleaning as in the past. Since it is not necessary to carry out this process, its practical value is extremely great as a heating and conveying device for plate-shaped objects made of plastics, etc., which have adhesive properties when heated.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view, Fig. 3 is a view taken along arrow A-A in Fig. 1, Figs. 4 and 5. , FIG. 6 is an explanatory diagram of the operation. 1: Heating furnace, 2, 3: Support stand, 4: Axis, 6: Fixed bar, 16: Moving bar.

Claims (1)

[Scope of utility model registration request] A plurality of rotatable shafts 4 having a plurality of fixed bars 6 around them are passed through the inside of the heating furnace 1 and parallel to each other between the support stands 2 and 3 provided on the inlet side and the outlet side of the heating furnace 1. At the same time, below these shafts 4, there is a moving bar 16 which repeats the movement of rising from the gap between the shafts 4, 4, lifting the plate-shaped object on the fixed bar 6, advancing it one pitch, and then lowering it. What is claimed is: 1. A heating conveyance device for a plate-shaped object, characterized in that it is provided with: