JPS627642A - Apparatus for heating and supplying material to be pressed - Google Patents

Abstract

PURPOSE:To supply a material heated to a temp. suitable for press working into a press die, efficiently and automatically by heating the material to be pressed placed on plural heating dishes to a working temp. in a heating furnace and successively supplying the material into a press die by utilizing a rotary feeder for a heating dish. CONSTITUTION:An annular hole A having a uniform cross section is provided on the inside, an insertion opening (a) and a supply opening (b) which are at right angles to the hole and are opposed to each other are furnished on a part of the annular hole A and an annular opening (c) communicating with the annular hole A is separately provided on the insertion side to form a heating furnace 2. Plural heating dishes 9 for carrying a material 1 to be pressed are furnished. The annular opening (c) of the heating furnace 2 confronts the inside of the annular hole A, the heating dish 9 is attached to the leading end part and the heating dish 9 is circularly moved along the inside of the annular hole A. A holder 4 capable of positioning the upper part of the heating dish 9 between the insertion opening (a) and the supply opening (b) at the midway and a rotary feeder 18 for the heating dish obtained by fixing the holders to a specified angle apart from one another to a main spindle 6 are furnished. Besides, a pusher 10 for placing the material 1 to be pressed in the heating dish 9 and supplying the material to a press die 17 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a heating supply device for press materials, and in particular, the present invention relates to a heating supply device for press materials, and in particular, for heating press materials to a temperature suitable for press processing.
The present invention relates to a heating supply device for press materials suitable for efficiently and automatically supplying press materials into press molds.

[Background of the invention]

Conventional heating and supply equipment for pressing materials, for example,
Publication No. 51-60208, Japanese Patent Publication No. 53-31487
As shown in the publication, the press material was placed on a heating plate made of refractory material, heated in a heating furnace until it became soft, the heating plate was removed, and the heated press material was heated. The material was fed into a press die and press-molded. However, this heating and supplying device for pressing materials did not take into consideration the following points.

(1) When feeding a press material heated to a temperature suitable for press processing into a press mold, take out the heating plate from the heating furnace using heating plate holding scissors, and press using the heating plate holding scissors. Since the press material is inverted so that the surface thereof faces downward and placed on the chute, it takes time t to feed the press material from the heating furnace into the press die. - Not only is it necessary, but the device is complicated, and there is also a problem with the lifespan of the heating plate holding scissors.

(2) Since the press material heated to a temperature suitable for press working is fed into the press die by sliding it on a shade, the press material is softened and may slide over the chute. In addition, it was difficult to supply the material to the central part of the press mold. [Object of the Invention] The present invention improves the problems of the above-mentioned conventional technology by heating the material to a temperature suitable for press working. It is an object of the present invention to provide a press material heating supply device having a simple structure and capable of efficiently and automatically feeding a press material into a press mold.

[Summary of the invention]

The configuration of the press material heating supply device according to the present invention is such that the press material is heated to a temperature suitable for press processing and the heated press material is supplied into a press die. In a material heating supply device, an annular hole with a uniform cross section is provided inside the annular hole, and an insertion side opening and a supply side opening are provided in a part of the annular hole and are perpendicular to the annular hole and facing each other, and a separate opening is provided on the insertion side. A heating furnace provided with an annular opening communicating with the annular hole, a plurality of heating plates on which pressing materials can be placed, and a tip end thereof facing into the annular hole from the annular opening of the heating furnace. A holder is attached to the heating plate, the heating plate is moved circularly along the annular hole, and the upper part of the heating plate is positioned between the insertion side opening and the supply side opening in the middle of the movement. A heating plate rotation feeding device arranged at a predetermined angle apart from each other to force the heating plate, an insertion side guide and a supply side guide attached to the insertion side opening and the supply a opening of the heating furnace; The material for n% press guided by the insertion side guide can be placed from outside the heating furnace through the insertion side opening into the heating plate located between the insertion side RO and the supply side opening, and A pusher guided by a supply side guide and capable of supplying the press material placed in the heating plate into the press mold outside the heating furnace through the supply side opening. It is.

[Example of invention]

The following is an example of a heating supply device according to the present invention, which uses a round bar-shaped press material with a circular cross section as a press material, heats it, and supplies the heated press material into a press mold. This is explained by

This heating supply device is installed in the atmosphere.

FIG. 1 is a front cross-sectional view showing the main parts of a heat supply device for press material according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken in the direction of arrow T1 in FIG. FIG. 4 is a partially sectional front view showing the vicinity of the heating furnace in FIG. 1, FIG. 4 is a sectional view taken along arrow ff-4 in FIG. 3, FIG. Perspective view showing details of the vicinity of the heating plate in FIG. 1, Nos. 7 to 1
Figure 2 is.

FIG. 2 is a ninth sectional view illustrating the operation of the pusher in FIG. 1;

In Figures 1 to 5, 2 has an annular hole A with a uniform square cross section inside, and 1 has an insertion side orthogonal to the annular hole A and facing each other near the top of a part of the annular body. opening a
A heating furnace is provided with a supply side opening K and an annular opening C communicating with an annular hole A on the insertion side, and a temperature detection hole is provided near the insertion side opening a of the heating furnace 2. A sensor insertion small hole d is drilled into which a temperature detection sensor 8 capable of detecting the temperature inside the heating furnace 2 is inserted. 7 is A, -C, A, which supports the outer wall 3 of the heating furnace 2. 1.□4 faces into the annular hole A from the annular opening C of the heating furnace 2, attaches a heating plate 9 (details will be described later) to the tip thereof, and moves the heating plate 9 circularly along the inside of the annular hole A. , in the middle of the process, the upper part of the heating plate 9 can be positioned between the insertion side opening a and the supply side opening. This is a heating plate rotation transfer device in which a total of eight pieces are fixed to a main shaft 6 and are rotationally driven in the direction of an arrow 19 (see FIGS. 1 and 3) by a main shaft drive mechanism (not shown).

As shown in detail in FIG. 6, the heating plate 9 has a V-groove 9a bored in its upper part to prevent the press material 1 placed thereon from moving freely. A holder insertion hole 9b for rotatably inserting the tip of the holder 4 is bored in the side surface. Therefore, while the heating plate 9 is in circular motion by the heating plate rotation feed device 18 (that is, while the heating plate 9 is in circular motion in the direction of the arrow in FIG. 4), the V-groove 9a is always on the top surface. It is configured to face.

Reference numeral 5 denotes a cover that is held by the holder 4 and rotates together with the holder 4 to seal the annular opening C of the heating furnace 2.

12 is an insertion side guide attached to the insertion side opening a of the heating furnace 2; 15 is a supply side guide attached to the supply side opening of the same heating furnace 2; Like the heating plate 9, the material of the guide 13 is an alloy whose main components are tungsten carbide and cobalt. 10 has a material holder 11 for holding the press material 1 at its tip, is guided by an insertion side guide 12,
The press material 1 can be inserted from outside the heating furnace 2 through the insertion side opening a into the V-groove 9a of the heating plate 9 (heating plate 9 positioned between the insertion side opening a and the supply side opening). and is guided by the supply side guide 13 n1 the V groove 9 of the heating plate 9
A press material 1 (this press material 1 is a press material 1 heated to a predetermined temperature K in a heating furnace 9)
) is transferred to the press die 17 (
(Details will be described later).

The press mold 17 forms a predetermined cavity when the mold is closed, and has an upper mold 14 and a lower mold 15, which are capable of press-molding the press material 1 into a predetermined-shaped pressed product, and an outer diameter of the pressed product. It is made of silk and consists of 16 pieces.

The operation of the press material heating supply apparatus configured as described above will be explained.

The press material 1 is placed on the V-groove 9a of each heating plate 9.

As shown in FIG. 4, the upper part of one heating plate 9 (heating plate 9 located at the top 81)
The main shaft drive mechanism positions the material so that it is on the lower surface between the supply side openings.Here, when the heating supply device'f: is turned on, it passes through the heating furnace 2 and presses all the materials on the heating plates 9. 1 is heated. The temperature detection sensor 8 detects the temperature near the heating plate 9 located at 88 one position from the top n1
The temperature of the press material 1 on the heating plate 9 or a temperature suitable for press processing (in case of optical glass material, 700°C)
), the heating plate rotating device 18 is rotated 45'' in the direction of the arrow (FIG. 4) by the main shaft drive mechanism, and the heating plate 9 is raised to the position S1 at S8.

The pusher 10 is guided by the insertion side guide 12 from the left side (FIG. 7), moves horizontally to the right side, passes through the insertion side opening a, and is moved to the press on the uppermost heating plate 9, which was previously positioned at 81. The material 1 is held by the material holder 11 at the tip of the pusher 10 (FIG. 8). Pusher 10 further horizontally moves to the right and is guided by supply side guide 13 n%
While rolling the previously held press material 1 on this supply side guide 13, when it reaches the stroke end, the press material 1 falls into the center of the lower die 15 of the press die 17 (Fig. 9). . The position detecting sensor is activated and the pusher 10 is moved to the initial position (FIG. 7). After this, in the press mold 17, the upper mold 14 is lowered, pressurizing the press material 1 in the lower mold 15 to perform press forming, and the n1 upper mold 14 is raised.

In parallel with this press forming, one press material 1 is loaded from the material loading device into the tip of the material holder 11 of the pusher 10, which has previously retreated to the position shown in FIG. 7 (FIG. 10). The pusher 10 moves from the left side to the right side of the insertion side guide 12.
The press material 1 or the heating plate 9 ( When the pusher 10 just enters the V-groove 9a of the previously empty heating plate 9), it stops (Fig. 11) and retreats again to the position shown in Fig. 7 (Fig. 12). Then, the heating plate rotation feeding device 18 moves further 45 mm in the direction of the arrow (FIG. 4).
@Rotates, and the heating plate 9, which was initially at S7, rises to position 81. Pressed product 11L that was previously press-formed (first
1) is pushed up by the lower die 15 and taken out from the press die 17 by the take-out mechanism.

The gripper 10 is guided from the left side to the insertion side guide 12.
, move horizontally to the right side, and press material 1 in the same way as before.
Then, it is fed into the press mold 17. By repeating this operation, the press material 1 in each heating plate 9 is sequentially supplied into the press mold 17, and after that, a new press material 1 is loaded, and the press material 1 is loaded into the press mold 17. are obtained in sequence. Then, the heating plate rotation transfer device 18 sequentially rotates by 45°, and the heating plate 9 on which the press material 1 heated to a temperature suitable for press processing is placed is sequentially raised to the position S1, The above-mentioned operation is repeated, and the press material 1 is heated and supplied automatically and continuously. About 8 pieces should be arranged at 45° intervals n #'i,s Press material 1"ft It takes almost no waiting time to heat up the press material, and in synchronization with press forming, it is suitable for processing. The press material 1 heated to this temperature can be continuously supplied into the press die 17.

In the embodiment described above, the heating plate 9 was heated to a temperature suitable for press working on a heating plate 9 attached to a holder 4 which faced the annular hole A of the heating furnace 2 and was spaced apart by 45 degrees from each other. Since the press material 1 can be forcibly and automatically fed into the press die 17 by horizontal movement of the crusher 10, the following effects can be obtained.

(1) When taking out the pressing material 1 from the heating furnace 2, there is no need to take out the heating plate 9 from the heating furnace 2, and the time required to feed the heated material 1 into the press mold 17 is reduced. , which can be shorter than conventionally required 0 (2), which was conventionally required. There is no need for a device to take out the heating plate from the heating furnace and turn it over.The structure of the heating supply device is simplified, and failures are extremely rare. Unlike those that use softened press material or fall, the pusher 10
Since the press material 1 is forcibly fed while being held by the material holder 11 at the tip of the press material 1, there is no possibility of welding of the press material 1 to the supply side guide 13, and press forming can be continued continuously. It can be implemented by

In this example, the heating supply device for the press material was placed in the atmosphere, but the entire device may be placed in a vacuum chamber or an inert atmosphere chamber containing nitrogen gas, helium gas, etc. This makes it possible to prevent oxidation due to heating of the device, thereby making it possible to improve the dimensional accuracy and surface condition of the pressed product 1a.

Furthermore, in this embodiment, the heating plate 9 and the insertion side guide 12. The material of the supply side guide 13 is an alloy whose main components are tungsten carbide and cobalt, which is suitable when the press material is plastic or glass. and non-ferrous metals, 5isN&.

The use of ceramic materials such as SiC has the advantage of completely preventing welding with the material for pressing.

Moreover, in this embodiment, the shape of the press material is round bar-shaped, but other circular cross-sections, for example, spherical shapes, may be used, and the shape is not limited. The material is not limited to glass, and may also be plastic materials, non-ferrous metals such as aluminum, copper, ferrous metals, etc. [Effects of the Invention] As explained in detail above, the present invention can be used for press working. Press materials heated to an appropriate temperature can be efficiently and automatically supplied to the press. We can provide a heating supply device for pressing materials with a simple structure◎

[Brief explanation of the drawing]

FIG. 1 is a front cross-sectional view showing the main parts of a heat supply device for press materials according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line mm in FIG. 1, and FIG. , a partially sectional front view showing the vicinity of the heating furnace in FIG. 1, and FIG.
Fig. 5 is a sectional view taken along the f arrow. Fig. 5 is a view in the direction of the ■ arrow, Fig. 6 is a perspective view showing details of the vicinity of the heating plate in Fig. 1, and Figs. It is a diagram. DESCRIPTION OF SYMBOLS 1...Material for press, 2...Heating furnace, 4...Holder, 6...Main shaft, 9...Heating plate, 10...Gutsha, 11...Material holder, 12...・Insertion side guide,
13... Supply side guide, 17... Press mold, 18...
... Heating plate rotation feed device, A... Annular hole, a... Insertion side opening, b... Supply side opening, C... Annular opening. 11 □ - - □ Representative Patent Attorney Katsutoshi Ogawa ゛・, - 10th Book 4 - Figure 5 Kaya 7 Figure 80 '49 Figure 10

Claims (1)

[Claims] 1. In a press material heating and supplying device that heats a press material to a temperature suitable for press processing and supplies the heated press material into a press mold, an annular shape with a uniform cross section is installed inside. A heating furnace comprising: a hole; a part of the annular hole has an insertion side opening and a supply side opening that are orthogonal to the annular hole and face each other; and an annular opening that communicates with the annular hole on the insertion side; , a plurality of heating plates on which press materials can be placed; a plurality of heating plates facing into the annular hole from the annular opening of the heating furnace; the heating plates are attached to the tips of the annular holes; A rotating heating plate comprising holders that can be moved circularly along the hole and position the upper part of the heating plate between the insertion side opening and the supply side opening on the way, spaced apart from each other by a predetermined angle. A feeding device, an insertion side guide attached to the insertion side opening and the supply side opening of the heating furnace, and a supply side guide, and guided by the insertion side guide, press material is transferred from outside the heating furnace to the insertion side opening. can be placed in a heating dish located between the insertion side opening and the supply side opening,
and a pusher that is guided by the supply-side guide and can supply the press material placed in the heating plate through the supply-side opening into the press mold outside the heating furnace. Features: A heating supply device for press materials.