TWI505864B - Material collection device of heat treatment apparatus - Google Patents

Description

Receiving device for heat treatment equipment

The present invention relates to a receiving device for a heat treatment apparatus, and more particularly to a receiving device for a heat treatment apparatus which can separate a coolant from a heat-treated article and has high recovery efficiency.

Please refer to FIG. 1 , which is a heat treatment receiving device 9 disclosed in the “heat treatment receiving device” of the Republic of China application No. 101148442. The heat treatment receiving device 9 can be used for heat treatment of an object, and the heat treatment receiving device 9 includes a circulation line 91, a filter box 92 and a pressure member 93, the circulation line 91 is provided for the flow of the coolant, the circulation line 91 has a treatment area 91a and a recirculation area 91b, and the coolant and the object are Heat exchange is performed in the processing area 91a. The two ends of the processing area 91a are respectively a receiving portion 911 and an opening 912 for respectively entering and leaving the circulating line 91; the end of the recirculating portion 91b and the processing area The opening 912 of the 91a is opposite to and forms an enlarged diameter section 913, and the other end is a liquid inlet portion 914 and is connected to the receiving portion 911 of the processing region 91a. The filter cartridge 92 is disposed at the opening 912 of the circulation line 91. The filter cartridge 92 is provided with a first filter screen 921. The pressure member 93 communicates with the circulation line 91 and is disposed between the enlarged diameter section 913 of the recirculation zone 91b and the liquid inlet portion 914 for pressurizing the coolant to circulate the coolant in the circulation line 91. .

The object is introduced into the filter cartridge 92 through the opening 912 of the circulation line 91 after the heat exchange with the coolant in the treatment zone 91a, and the object is retained by the first filter 921. After the filter cartridge 92 collects the object of the preset weight in the filter cartridge 92, The filter cartridge 92 is pivoted relative to the circulation line 91 to pour the contents of the filter cartridge 92 into the collection box 94; the coolant passing through the first screen 921 is The enlarged diameter section 913 flows into the recirculation zone 91b of the circulation line 91, and is finally pressurized by the pressure member 93, so that the coolant is injected from the liquid inlet portion 914 back into the treatment zone 91a of the circulation line 91 to continuously The circulation line 91 circulates in the flow.

However, although the object will be separated from the coolant in the filter cartridge 92, the surface of the article will still be slightly adhered with the coolant, and the coolant cartridge 92 will continue to pass through the coolant, so that some of the objects are exposed to the surface. Adhered with the coolant to adhere to the inner wall surface of the filter cartridge 92, so that it is not easy to pour all the objects in the filter cartridge 92 when the filter cartridge 92 is pivoted relative to the circulation conduit 91. The collection box 94 is collected so as to affect the receiving efficiency of the overall heat treatment receiving device 9; in particular, when the volume of the object to be heat treated is as small as "micro", such as a micro screw used in a mobile phone, glasses or a clock, etc. For gears and other parts, the gravity is not easy to overcome the aforementioned adhesion, so the problem of poor receiving efficiency is particularly obvious.

For the above reasons, the filter cartridge 92 in the heat treatment receiving device 9 does have a need for improvement.

The object of the present invention is to provide a receiving device for a heat treatment device, which is characterized in that the object after the heat treatment is not easily adhered to the filter screen, and is easily collected into the collecting box to improve the receiving efficiency.

In order to achieve the foregoing object, the technical content of the present invention includes: a receiving device for a heat treatment apparatus, comprising: a rotating connecting member having an inner ring and an outer ring, wherein the inner ring is rotatably disposed outside the outer ring a filter cup, coupled to the inner ring, the inner wall surface of the filter cup is provided with a plurality of spiral grooves having the same direction of rotation; and a filter member having a positioning ring and a filter mesh connected thereto, the positioning The ring is connected to the outer ring, the filter is disposed inside the filter cup, the positioning ring is provided with a through air inlet hole, and the air inlet hole pair is located in the filter net and the filter cup Between the inner walls.

Wherein, the plurality of spiral grooves are equidistantly spaced apart from each other.

Wherein, the spiral angle formed between the spiral extending line of each spiral channel and the axial line of the rotating cup may be 20 to 70 degrees.

Wherein, the spiral angle of each of the spiral grooves may be 45 to 60 degrees.

The number of the spiral grooves may be 12 to 24.

The filter cup has a ring wall, an inlet end and an outlet end. The inlet end and the outlet end are respectively located at two ends of the ring wall. The ring wall has an inner wall surface and an outer wall surface, and the plurality of spiral grooves The filter cup is disposed on an inner wall surface of the annular wall, and the filter cup is coupled to the inner ring by an outer wall surface of the annular wall.

Wherein, the filter cup can be tapered from the inlet end toward the outlet end to make the ring wall have a tapered shape; the filter screen is also tapered to be accommodated inside the filter bowl.

Wherein, in the axial section of the filter cup, the tapered angle of the outer wall surface of the ring wall may be 45 to 70 degrees.

Wherein, the ring wall of the filter cup may form a joint portion at the inlet end, the outer diameter of the ring wall is equal at the joint portion, and the filter cup is tightly engaged with the inner ring by the joint portion.

The inner annular surface of the positioning ring can extend downward to form a retaining wall, and the filter mesh is connected to the end edge of the retaining wall.

Wherein, the connection between the filter screen and the retaining wall can be aligned with the inlet end of the filter bowl.

The receiving device of the heat treatment device further comprises a rotating cup, the rotating cup is disposed inside the filter cup and located between the filter cup and the filter net, the rotating cup is provided with a plurality of spiral passages with the same direction of rotation, each The spiral passage penetrates the inner and outer wall surfaces of the rotating cup; further, the plurality of spiral passages of the rotating cup have a first direction of rotation, and the plurality of spiral grooves of the filter cup have a second direction of rotation, the first rotation Preferably, it is opposite to the second direction of rotation.

Wherein, the pair of intake holes of the positioning ring is located between the rotating cup and the filter bowl.

Wherein, the plurality of spiral channels are equidistantly spaced apart from each other.

Wherein, the spiral angle formed between the spiral extending line of each spiral channel and the axial line of the rotating cup may be 20 to 70 degrees.

Wherein, the spiral angle of each of the spiral channels may be 45 to 60 degrees.

The number of the spiral channels may be 12 to 24.

Wherein, the rotating cup has a tapered shape, and the tapered angle of the outer wall surface of the rotating cup may be 45 to 70 degrees in the axial section of the rotating cup.

According to the foregoing structure, the receiving device of the heat treatment apparatus of the present invention can make the articles after the heat treatment less likely to stick to the filter screen, and can be easily collected into the collecting box to improve the receiving efficiency.

〔this invention〕

1‧‧‧Rotating joints

11‧‧‧ Inner Ring

12‧‧‧Outer Ring

2‧‧‧ filter cup

21‧‧‧ Ring wall

21a‧‧‧ inner wall

21b‧‧‧ outer wall

211‧‧‧Combination Department

212‧‧‧Spiral groove

22‧‧‧ entrance end

23‧‧‧export end

3‧‧‧ filter

31‧‧‧ positioning ring

311‧‧‧Retaining wall

312‧‧‧Air intake

32‧‧‧ Filter

4‧‧‧Rotating Cup

4a‧‧‧ inner wall

4b‧‧‧ outer wall

41‧‧‧Spiral channel

θ, β‧‧‧ cone angle

、, γ‧‧‧ helix angle

F, T‧‧‧ airflow

F1, T1‧‧‧ cutting force

F2, T2‧‧‧ pushes the force

F3, T3‧‧ Cyclone force

[Use]

9‧‧‧heat treatment receiving device

91‧‧‧Circulation line

91a‧‧‧Processing area

91b‧‧‧Recirculation zone

911‧‧‧ Receiving Department

912‧‧‧ openings

913‧‧‧Expanded section

914‧‧‧Into the Ministry of Liquid

92‧‧‧Filter box

921‧‧‧First screen

93‧‧‧Pressure parts

94‧‧‧ collection box

Fig. 1 is a schematic view showing the structure of a heat treatment receiving device disclosed in the "heat treatment receiving device" of the Republic of China application No. 101148442.

Fig. 2 is a perspective exploded view showing the first embodiment of the present invention.

Fig. 3 is a schematic sectional view showing the structure of the first embodiment of the present invention.

Fig. 4 is a view showing the flow component of the first embodiment of the present invention.

Figure 5 is a perspective exploded view of a second embodiment of the present invention.

Figure 6 is a cross-sectional view showing the structure of a rotating cup according to a second embodiment of the present invention

Figure 7 is a schematic cross-sectional view showing the structure of the second embodiment of the present invention.

Figure 8a is a schematic view of the airflow component of the second embodiment of the present invention in a filter bowl.

Fig. 8b is a schematic view showing the component of the airflow in the rotating cup of the second embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIG. 2, which is a first embodiment of the receiving device of the heat treatment apparatus of the present invention, the receiving device of the heat treatment apparatus generally comprises a rotating connecting member 1, a filter bowl 2 and a filter member 3, the filter The cup 2 is rotatably coupled to the rotary joint member 1, and a portion of the filter member 3 extends through the filter bowl 2 to retain the article and pass the coolant.

Referring to FIGS. 2 and 3, the rotary joint 1 has an inner ring 11 and an outer ring 12, and the inner ring 11 is rotatably disposed inside the outer ring 12; in the embodiment, the rotary connection The member 1 can be a bearing, and its detailed structure and actuation principle can be understood by those having ordinary knowledge in the art, which will not be described in detail herein, and the type of the bearing can be, for example, a ball bearing, a roller bearing, etc., in the field. The present invention is not limited by those having ordinary knowledge who can select them according to their needs.

The filter cup 2 has a ring wall 21, an inlet end 22 and an outlet end 23. The inlet end 22 and the outlet end 23 are respectively located at two ends of the ring wall 21; the ring wall 21 has an inner wall surface 21a and an outer wall surface. 21b, the filter cup 2 is coupled to the inner ring 11 of the rotary joint 1 by the outer wall surface 21b of the annular wall 21, so that the filter bowl 2 can rotate relative to the outer ring 12 of the rotary joint 1. In this embodiment, the inner diameter of the filter cup 2 can be tapered toward the outlet end 23, so that the annular wall 21 is tapered, so that the passing fluid increases the dynamic pressure due to the reduction of the cross-sectional area; In the axial section of the filter bowl 2, the tapered angle θ of the outer wall surface 21b of the annular wall 21 may be 45 to 70 degrees to produce a better fluid pressure effect. In addition, in order to enable the filter cup 2 to be firmly coupled with the inner ring 11 of the rotary joint 1, the annular wall 21 of the filter bowl 2 can form a joint 211 at the inlet end 22, the ring wall 21 being combined in the joint The outer diameter of the portion 211 is equal and equal to or slightly larger than the inner diameter of the inner ring 11, so that the filter cup 2 can be tightly engaged with the inner ring 11 by the joint portion 211, and lifted with the inner ring 11 The bonding area is used to enhance the bonding stability between the filter bowl 2 and the inner ring 11.

Moreover, the filter cup 2 is provided with a plurality of spiral grooves 212 having the same direction of rotation on the inner wall surface 21a of the ring wall 21; in this embodiment, the number of the spiral grooves 212 may be 12 to 24, and the number of the spiral grooves 212 may be 12 to 24 The spiral grooves 212 are equidistantly spaced apart from each other, and a spiral angle α formed between the direction of the spiral extension of the spiral groove 212 and the axis of the filter cup 2 is about 20 to 70 degrees, wherein It is preferably 45 to 60 degrees.

The filter member 3 includes a positioning ring 31 and a filter screen 32. The positioning ring 31 is connected to the outer ring 12 of the rotary connecting member 1. For example, the positioning ring 31 can be abutted by the protrusion. The top surface of the ring 12 is either provided with a joint portion to be fastened to the outer ring 12, or other structure capable of maintaining the positioning ring 31 not in contact with the inner ring 11 or the filter bowl 2 of the rotary joint member 1 The connection between the positioning ring 31 and the outer ring 12 is not limited in the present invention. Alternatively, the positioning ring 31 can also be in contact with the inner ring 11 as long as it is in the field. There is enough lubrication between the two.

In this embodiment, the inner ring of the positioning ring 31 extends downward to form a retaining wall 311, so that the filter mesh 32 is coupled to the end edge of the retaining wall 311; accordingly, the positioning ring 31 is connected to the outer ring 12 The screen 32 can be inserted into the interior of the filter bowl 2 and is spaced apart from the inner wall surface 21a of the ring wall 21 by a predetermined distance.

Moreover, the positioning ring 31 is further provided with a through air inlet hole 312, which can be used to connect a gas source, and the air inlet hole 312 is located between the screen 32 and the inner wall surface 21a of the ring wall 21. The gas can be guided into the spiral grooves 212 of the filter bowl 2; wherein the junction of the filter screen 32 and the retaining wall 311 is preferably aligned with the inlet end 22 of the filter bowl 2, thereby guiding The bleed air does flow to the spiral grooves 212 of the filter bowl 2 and does not overflow into the screen 32 before flowing into the spiral grooves 212.

The mesh of the screen 32 is smaller than the size of the article to be cooled and tempered by the coolant so that the articles can be retained by the screen 32 and the coolant can pass through the screen 32. Moreover, when the ring wall 21 of the filter bowl 2 has a tapered shape, the screen 32 is also tapered to be accommodated inside the filter bowl 2.

According to the foregoing structure, when the receiving device of the heat treatment apparatus of the present invention is used, the outer ring 12 of the rotary joint 1 can be coupled to the circulation line of a heat treatment receiving device, and the inlet end 22 of the filter bowl 2 can be made. Opening the opening of the circulation line to receive the coolant and the object that have completed the heat exchange; in addition, the bottom of the filter bowl 2 may be provided with a stopper filter plate, so that the heat-treated object can be left in the filter bowl 2 and In the filter screen 32, and when collecting the articles for a preset weight, removing the material filter plate to drop the objects into a collecting box; the cooling liquid continues through the filter cup 2 Recycled in the circulation line.

It should be noted that, referring to Figures 3 and 4, the air inlet hole 312 of the filter element 3 can be filled with a gas (for example, compressed air) to form a flow of air F, which flows into the spiral groove 212 and then A plurality of component forces in different directions are formed, including a split component force F1, a push component component F2, and a cyclone component F3. The blanking force component F1 flows along the radial direction of the filter cup 2, and the object can be blown radially in the middle, so that the object falls down and accumulates without sticking to the filter screen 32; The component F2 is orthogonal to the groove wall of the spiral groove 212 to form a thrust, so that the filter cup 2 can rotate together with the inner ring 11 with respect to the outer ring 12; the cyclonic force component F3 is followed by a spiral The direction of the groove 212 flows to form a spiral airflow to assist in lifting the effect of the blanking force component F1 and the pushing component force F2; in particular, when the ring wall 21 of the filter cup 2 is tapered, During the flow of the cyclonic force component F3 toward the outlet end 23 of the filter bowl 2, the dynamic pressure of the fluid is increased, so that the effect of the material splitting force F1 and the pushing component force F2 is more obvious, which helps to enhance the object. The effect of sticking to the filter screen 32 and the smoothness of rotation of the filter bowl 2 are not adhered.

Referring to FIG. 5, which is a second embodiment of the receiving device of the heat treatment apparatus of the present invention, the second embodiment of the present invention is substantially the same as the first embodiment described above, and the difference lies in the second embodiment of the present invention. There is also a rotating cup 4 which is accommodated inside the filter bowl 2 between the filter bowl 2 and the screen 32.

More specifically, the interior of the rotating cup 4 is hollow and has an inner wall surface 4a and an outer wall surface 4b. The rotating cup 4 is provided with a plurality of spiral passages 41 having the same direction of rotation, each of which is spiral passage 41 penetrates the inner wall surface 4a and the outer wall surface 4b of the rotating cup 4; wherein the plurality of spiral passages 41 of the rotating cup 4 have a first direction of rotation, and the plurality of spiral grooves 212 of the filter cup 2 have a second rotation The first direction of rotation is opposite to the second direction of rotation (eg, the first direction of rotation is a clockwise direction and the second direction of rotation is a counterclockwise direction).

In addition, referring to FIG. 6, in the present embodiment, the rotating cup 4 can be tapered in cooperation with the filter cup 2, and the outer wall surface 4b of the rotating cup 4 is in the axial section of the rotating cup 4. The taper angle β can be 45 to 70 degrees to produce a better fluid pressurization effect. Moreover, the number of the spiral passages 41 of the rotating cup 4 may be 12 to 24, and the plurality of spiral passages 41 are equidistantly spaced apart from each other, and the spiral extending line of each of the spiral passages 41 and the rotating cup 4 The helix angle γ formed between the axis lines is about 20 to 70 degrees, and more preferably 45 to 60 degrees.

Referring to FIG. 7, when assembled, the rotating cup 4 is received in the filter bowl 2, and the outer wall surface 4b of the rotating cup 4 can be in contact with the inner wall surface 21a of the ring wall 21 of the filter cup 2, so that the rotation The cup 4 and the filter bowl 2 maintain a loosely coupled configuration. On the other hand, the screen 32 is bored and received inside the rotating cup 4, and is spaced apart from the inner wall surface 4a of the rotating cup 4 by a predetermined distance. Moreover, the air inlet hole 312 of the positioning ring 31 can be selectively located between the screen 32 and the inner wall surface 4a of the rotating cup 4, or as shown, facing the outer wall surface 4b of the rotating cup 4 and Between the inner wall surface 21a of the filter bowl 2, the air flow that is introduced can be directly blown between the rotating cup 4 and the filter bowl 2, so that the rotating cup 4 is slightly floated without the inner wall surface 21a of the filter bowl 2. contact.

Referring to Figures 7 and 8a, when the air inlet 312 of the filter element 3 is vented, a portion of the air flow F flows between the outer wall surface 4b of the rotating cup 4 and the inner wall surface 21a of the filter bowl 2, The other part of the airflow T flows between the screen 32 and the inner wall surface 4a of the rotating cup 4; wherein the airflow F comprises the lower component F1, the pushing component F2 and the cyclone as described in the first embodiment. The force F3, and the blanking force component F1 also has the effect of slightly lifting the rotating cup 4 in this embodiment.

Referring to Figures 7, 8b, the air flow T is in the spiral passage into the rotating cup 4. After the passage 41, a plurality of component forces in different directions are formed, which include a lower component force T1, a push component T2 and a cyclone component T3. The blanking force component T1 flows along the radial direction of the rotating cup 4, and can blow the object radially in the middle together with the lower material component F1, so that the object falls down and accumulates without sticking. On the screen 32; the pushing component T2 is orthogonal to the side wall of the spiral channel 41 to form a thrust, so that the slightly floating rotating cup 4 can be axially rotated relative to the screen 32; The force T3 flows in the direction of the spiral passage 41 to form a spiral airflow, and gradually increases the dynamic pressure of the cyclonic force component T3 by the rotating cup 4 in a tapered shape, so that the material component T1 and the turning point are The effect produced by the force T2 is more pronounced, which helps to improve the effect of the object not adhering to the filter screen 32 and the smoothness of rotation of the rotating cup 4.

Wherein, since the spiral passage 41 of the rotating cup 4 is opposite to the spiral direction of the spiral groove 212 of the filter bowl 2, the cyclonic force components T3 and F3 of the airflows T and F respectively drive the rotating cup 4 and the filter cup 2 respectively. Rotating the opposite rotating motion and forming a spiral flow of the inner and outer double-layered opposite spirals to make the object more easily detached from the screen 32, thereby ensuring that the heat-treated object is not easily adhered to the screen 32, and It can be smoothly collected into the collecting box to achieve the effect of improving the receiving efficiency.

The receiving device of the heat treatment device of the present invention is particularly suitable for use in a heat treatment receiving device for cooling and tempering "fine" articles by a cooling liquid, and can effectively assist the fine objects by the flow dividing force and the cyclonic force component of the airflow. Overcoming the adhesion of the coolant to the filter screen, the fine objects entering the filter can be smoothly separated from the surface of the filter and can be collected into the collection box. However, the object of the receiving device of the heat treatment apparatus of the present invention is not limited thereto, and can be applied to any heat treatment receiving device for cooling and quenching the object with a cooling liquid, which can be understood by those having ordinary knowledge in the art. It is not limited by the invention.

In summary, the receiving device of the heat treatment device of the present invention can make the object after the heat treatment not easy to adhere to the filter net, and is easily collected into the collecting box to improve the receiving efficiency.

Although the present invention has been disclosed using the above preferred embodiments, it is not intended to be limiting The present invention is not limited to the spirit and scope of the present invention, and various modifications and changes to the above embodiments are still within the technical scope of the present invention. Therefore, the scope of protection of the present invention is attached. The scope defined in the scope of application for patent application shall prevail.

1‧‧‧Rotating joints

11‧‧‧ Inner Ring

12‧‧‧Outer Ring

2‧‧‧ filter cup

21‧‧‧ Ring wall

21a‧‧‧ inner wall

21b‧‧‧ outer wall

212‧‧‧Spiral groove

22‧‧‧ entrance end

23‧‧‧export end

3‧‧‧ filter

31‧‧‧ positioning ring

311‧‧‧Retaining wall

312‧‧‧Air intake

32‧‧‧ Filter

4‧‧‧Rotating Cup

4a‧‧‧ inner wall

4b‧‧‧ outer wall

41‧‧‧Spiral channel

Claims (19)

A receiving device for a heat treatment apparatus, comprising: a rotating connecting member having an inner ring and an outer ring, wherein the inner ring is rotatably disposed inside the outer ring; and a filter cup is coupled to the inner ring, The inner wall surface of the filter cup is provided with a plurality of spiral grooves having the same direction of rotation; and a filter member having a positioning ring and a filter mesh connected thereto, the positioning ring is connected to the outer ring, and the filter mesh is accommodated in the filter cup The positioning ring is provided with a through air inlet hole, and the air inlet hole pair is located between the filter screen and the inner wall surface of the filter bowl. The receiving device of the heat treatment apparatus according to claim 1, wherein the plurality of spiral grooves are equidistantly spaced apart from each other. The receiving device of the heat treatment apparatus according to claim 2, wherein a spiral angle formed between a spiral extending line of each of the spiral grooves and an axial line of the filter cup is 20 to 70 degrees. The receiving device of the heat treatment apparatus according to claim 3, wherein the spiral angle of each of the spiral grooves is 45 to 60 degrees. The receiving device of the heat treatment apparatus according to claim 2, wherein the number of the spiral grooves is 12 to 24. The receiving device of the heat treatment apparatus according to any one of claims 1 to 5, wherein the filter cup has a ring wall, an inlet end and an outlet end, wherein the inlet end and the outlet end are respectively located in the ring The two ends of the wall have an inner wall surface and an outer wall surface. The plurality of spiral grooves are disposed on an inner wall surface of the ring wall, and the filter cup is coupled to the inner ring by an outer wall surface of the ring wall. The receiving device of the heat treatment apparatus according to claim 6, wherein the filter cup is tapered from the inlet end toward the outlet end to make the ring wall tapered; the filter screen It is also tapered to be accommodated inside the filter bowl. The receiving device of the heat treatment apparatus according to claim 7, wherein the outer wall surface of the ring wall has a taper angle of 45 to 70 degrees in an axial section of the filter cup. The receiving device of the heat treatment apparatus according to claim 6, wherein the ring wall of the filter cup forms a joint portion at the inlet end, and the outer diameter of the ring wall at the joint portion is equal, the filter The cup is tightly fitted to the inner ring by the joint portion. The receiving device of the heat treatment apparatus according to claim 6, wherein the inner ring of the positioning ring extends downward to form a retaining wall, and the filter mesh is connected to the end edge of the retaining wall. The receiving device of the heat treatment apparatus according to claim 10, wherein the connection between the screen and the retaining wall is aligned with the inlet end of the filter bowl. The receiving device of the heat treatment apparatus according to any one of claims 1 to 5, further comprising a rotating cup, the rotating cup being disposed inside the filter cup and located at the filter cup and the filter The rotating cup is provided with a plurality of spiral passages having the same direction of rotation, and each of the spiral passages penetrates the inner and outer wall surfaces of the rotating cup. The receiving device of the heat treatment apparatus of claim 12, wherein the plurality of spiral passages of the rotating cup have a first direction of rotation, and the plurality of spiral grooves of the filter cup have a second direction of rotation. The first direction of rotation is opposite the second direction of rotation. The receiving device of the heat treatment apparatus according to claim 12, wherein the pair of intake holes of the positioning ring is located between the rotating cup and the filter bowl. The receiving device of the heat treatment apparatus according to claim 12, wherein the plurality of spiral passages are equidistantly spaced apart from each other. The receiving device of the heat treatment apparatus according to claim 15, wherein a spiral angle formed between a spiral extending line of each of the spiral passages and an axial line of the rotating cup is 20 to 70 degrees. The receiving device of the heat treatment apparatus according to claim 16, wherein the spiral angle of each of the spiral passages is 45 to 60 degrees. The receiving device of the heat treatment apparatus according to claim 15, wherein the number of the spiral passages is 12 to 24. The receiving device of the heat treatment apparatus according to claim 12, wherein the rotating cup has a tapered shape, and a tapered angle of the outer wall surface of the rotating cup is 45 to 70 in an axial section of the rotating cup. degree.