JPH01149918A - Support for material to be treated in heat-treating furnace - Google Patents

Abstract

PURPOSE:To reduce the opening area necessary for the insertion of a material to be treated and to prevent escape of heat by combining the plural fixed arms and mobile arms vertically provided, making the mobile arm vertically movable, and successively transferring the material in the vertical direction. CONSTITUTION:When a material to be treated is raised in the furnace, the lowermost mobile arm 8 is retreated at a position below a roller conveyor 4, and plural materials to be treated are placed on the conveyor 4. The mobile arm 8 is then rotated and pushed out to raise an auxiliary strut 6 by one pitch, and the material on the conveyor 4 is received by the mobile arm 8 and raised. The fixed arm 7 is rotated to further raise the mobile arm 8 by one pitch, then the fixed arm 7 is rotated and pushed out to lower the mobile arm 8, and the material is received by the fixed arm 7. The material is successively received by the one fixed arm 7 above by the mobile arm 8, and placed on the uppermost arm. The material can also be lowered in the same way by lowering the mobile arm 8.

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention mainly uses extruded aluminum sections,
The present invention relates to a processing material holding device for supporting the material in a heat treatment furnace.

(Prior art) This type of heat treatment apparatus is equipped with a furnace body parallel to the extrusion direction of the shape extruded from an extruder, moves the extruded shape laterally toward the furnace body, and then moves the shape into the furnace body. The shapes are fed in the longitudinal direction and sequentially cut to a predetermined length, and the cut shapes are moved laterally to the front of the furnace body, and then the shapes are inserted into the furnace body along the longitudinal direction through an inlet opened in the front of the furnace body. There is a known structure in which the shaped material is inserted into the furnace, heat-treated while being fed rearward within the furnace body, and then sent out from an outlet opened at the rear. Moreover, the structure of the furnace body installed in the above device is such that a lift is provided at the inlet and the outlet, and a number of conveyors are installed vertically inside the furnace body to rotate along its longitudinal direction. When the door is opened, the profile placed on the lift is transferred to an empty conveyor, and at the exit, the heat-treated profile is transferred to the lift and discharged.

(Problems to be Solved by the Invention) By the way, when inserting and discharging the shapes into the furnace in the above-mentioned apparatus, it is necessary to open the inlet and outlet wide so that the conveyors of each stage are exposed. Because the material is inserted and discharged vertically, it takes more time than when it is inserted horizontally, and the opening is open for a longer period of time, which means that a large amount of heat in the furnace is dissipated during this time. This has the drawback of adversely affecting the heat treatment condition of the shape and increasing thermal energy loss.

The present invention was developed to solve these drawbacks, and it is possible to minimize the opening area of the furnace and hold a large number of shapes in the furnace, suppressing loss of thermal energy,
An object of the present invention is to provide a device for holding a material to be treated in a heat treatment furnace, which allows a good heat treatment state to be obtained.

[Structure of the invention]

(Means for Solving the Problems) A first aspect of the device for holding a material to be treated in a heat treatment furnace according to the present invention is to introduce a long material to be treated along its longitudinal direction, and heat-treat the material by blowing hot air into the device. A plurality of pairs of main struts and auxiliary struts are erected at intervals along the longitudinal direction of the furnace body, and a plurality of fixed arms are attached to the main strut, and a plurality of fixed arms are attached to the auxiliary struts. The movable arms are provided protrudingly at intervals in the height direction, a rotating device is connected to the main column, and a rotating device and a lifting device are similarly provided to the auxiliary column.

The material to be processed held on the fixed arm is received by the movable arm, and the movable arm is raised or lowered to pass it to the upper or lower fixed arm and held in sequence. There are cases in which it is held, and cases in which it is sequentially lowered and held.

In a second aspect of the present invention, an ascending holding section having the above structure and a descending holding section having the same structure are disposed on the left and right sides in the processing furnace, and a transfer device is interposed between the two holding sections.

(Example) To specifically explain the present invention, as shown in FIGS. 1 to 3, a furnace body 1 into which hot air is blown has a long workpiece 18 (maximum length 6.6 m). ) is inserted along its longitudinal direction, and is long enough to be stored in three blocks in the longitudinal direction, and each block is provided with an ascending holding part 2 and a descending holding part 3. Since the holding part 2 and the lowering holding part 3 have the same structure and differ only in operation, only one structure will be described.

For each block at the bottom of the furnace body 1, the material to be treated 1
The furnace main body 1 is equipped with a roller conveyor 4 that conveys the main support 8 in the longitudinal direction, and has a plurality of pairs of main support 5 and sub support 6 near one side wall.
A large number of fixed arms 7 are fixed to the main support 5 at regular intervals from a position higher than the roller conveyor 4, and one fixed arm 7 is fixed to the sub-support 6 at regular intervals. A plurality of movable arms 8 are arranged and fixed at corresponding positions between the respective fixed arms 7, and a rotating device 9 using a cylinder is connected to the main column 5. The sub-pillar 6 is also provided with a rotating device 10 using a cylinder and a lifting device 11 using a cylinder.

In addition, the main support 5 and the sub-support 6 are provided in FIG. 2, with the sub-support 6 being provided on the inlet 16 side of the furnace body 1, and the main support 5 being provided on the outlet 17 side. Further, the sub-support column 6 rotates its movable arm 8 by 90 degrees from a state perpendicular to the longitudinal direction of the furnace main body 1 toward the inlet 16 side, and the main column 5 rotates the movable arm 8 by 90 degrees toward the inlet 16 side.
It is designed to rotate 90' towards the 7 side. Furthermore, when the sub-pillar 6 is lowered by the lifting device 11, the lowermost moving arm 8
is configured to descend below the roller conveyor 4.

In order to transfer the processed material 18 from the above-mentioned ascending holding section 2 to the descending holding section 3, a transfer device 12 is provided at the top of the furnace body 1, and the transfer device 12 advances and retreats along the guide rail 13. Transfer arm 15 to chain conveyor 14
is attached.

An inlet 16 is provided in the lower part of the front surface of the furnace body 1 provided with the holding device, and an outlet 17 is provided in the lower part of the rear surface.
The material to be treated 18 is fed onto the roller conveyor 4 through the inlet 16 and discharged through the outlet 17.

By the way, in the above case, each block has a rising holding part 2.
and the lowering holding part 3 are arranged on the left and right,
It is not necessarily necessary to use the combination;
The size of the block only, and the rising holding part 2. Alternatively, the lowering holding part 3 may be provided, and the inlet 16 and outlet 17 may be provided above and below, respectively. In this case, the transfer device 12 may be provided to guide the material to be treated 18 to the outside or inside of the furnace body 1. In addition, the furnace body 1, which has several blocks,
Each block may be provided with ascending holding parts 2 and descending holding parts 3 arranged alternately in the longitudinal direction. In this case as well, the roller conveyor 4 and transfer device 12 are used to transfer the blocks to adjacent blocks.

Next, the effect will be explained. First, let us consider the case of the rising holding part 2 in the fourth
The diagrams range from A to G in the figure, and the sub-support column 6 is lowered with its movable arm 8 installed (retracted) parallel to the longitudinal direction of the furnace main body 1, and the lowermost stage is moved as shown in A. Arm 8
is lowered from the roller conveyor 4, and a plurality of materials to be processed 18 are inserted onto the roller conveyor 4 during this time. Then, after rotating the movable arm 8 and protruding it (to a state where it can be held), the sub-support column 6 is raised by one pitch between the upper and lower movable arms 8, as shown in Figure B. During this ascent, the material 18 on the roller conveyor 4 is received by the moving arm 8 as shown in FIG. Next, after rotating and retracting the fixed arm 7 as shown in Fig. D, the movable arm 8 is further raised by about 1 pitch as shown in Fig. E (it only needs to be slightly higher than the upper fixed arm). Next, as shown in Fig. F, the fixed arm 7 is rotated and protruded, and then the movable arm 8 is lowered. During this descent, the workpiece 18 is transferred to the first stage fixed arm 7. Thereafter, the movable arm 8 is rotated and retracted as shown in Fig. G, and then lowered again as shown in Fig. A. Incidentally, during the above-mentioned operation, each of the materials 18 to be treated in the upper stage is moved up one stage. Further, the topmost one is placed on the transfer arm 15.

Next, in the case of the descending holding section 3, a description will be given from a state in which the movable arm 8 is retracted and descended from the roller conveyor 4, as shown in FIG. 5A. First, as shown in Figure B, the moving arm 8 is moved up one pitch while being retracted. Therefore, after rotating the moving arm 8 and protruding it as shown in Figure 0,
Raise the moving arm 8 by about 1 pitch. As it rises, the workpiece 18 on the fixed arm 7 is received by the movable arm 8, as shown in Figure D. Next, as shown in Fig. E, after the fixed arm 7 is retracted, the movable arm 8 is lowered by about 1 pitch. Next, by rotating and protruding the fixed arm 7 as shown in Fig. F, and further lowering the movable arm 8, the workpiece 18 held on the lowermost fixed arm 7 is transferred to the roller conveyor 4 as shown in Fig. G. be taken off. Of course, during this time, the items on each stage and the items on the transfer arm 15 are also lowered to the lower stage at the same time. After descending in this manner, the movable arm 8 is retracted and raised again to repeat the above operation.

[Purpose of the invention]

According to the workpiece holding device for a heat treatment furnace according to the present invention, a plurality of fixed arms provided vertically and a movable arm are combined, each arm is provided so as to be rotatable to protrude and retreat, and the movable arm is movable vertically. This device is capable of sequentially transferring the material to be processed held at the bottom or top tier to the upper or lower tier by operating a fixed arm and a moving arm. It is sufficient to open the inlet and outlet of the furnace main body with an area large enough to insert the material to be treated at the bottom or top, and since the opening area can be much narrower compared to conventional furnaces, heat dissipation can be reduced. It can be suppressed as much as possible and greatly contributes to energy saving. In addition, when transferring from a movable arm to a fixed arm or from a fixed arm to a movable arm, the material is scooped up from below or placed from above, so the material to be processed may be damaged during transfer. This method heat-treats the material to be treated in an extremely good condition without applying any bending stress.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the workpiece holding device for a heat treatment furnace according to the present invention as seen from the side, FIG. 2 is a cross-sectional view seen from the top, FIG. 3 is a cross-sectional view seen from the front, and Figure A~
Figure G is an explanatory view showing the effect when the material to be treated is held while being raised, and Figures A to G in Fig. 5 are explanatory views showing the effect when the material to be treated is held while being lowered. 1...Furnace main body 2...Rising holding part 3...Descent holding part 4...Roller conveyor 5...Main support 6.
・・Sub-prop 7・・Fixed arm 8・・Moving arm
9, 10... Rotating device 11... Lifting device Fig. 4 (A) (B) (C) (D) (E)
(F) (G) Fifth
figure

Claims (1)

[Claims] 1) A long material to be treated is put into the furnace body 1 along its longitudinal direction, heated by blowing hot air into it, and then discharged.
A plurality of pairs of main struts 5 and auxiliary struts 6 are erected at intervals along the longitudinal direction of the reactor main body 1, and the main strut 5 has a plurality of fixed arms 7, and the auxiliary strut 6 has a plurality of movable arms 8. A rotation device 9 is connected to the main support 5, and a rotation device 10 and a lifting device 1 are connected to the sub-support 6.
1. A device for holding a material to be treated in a heat treatment furnace, characterized in that it is provided with: 2) A long material to be treated is put into the furnace body 1 along its longitudinal direction, heated by blowing hot air into it, and then discharged.
A plurality of pairs of main struts 5 and auxiliary struts 6 are erected at intervals along the longitudinal direction of the reactor main body 1, and the main strut 5 has a plurality of fixed arms 7, and the auxiliary strut 6 has a plurality of movable arms 8. A rotation device 9 is connected to the main support 5, and a rotation device 10 and a lifting device 1 are connected to the sub-support 6.
1 and a lowering holding part 3 are disposed on the left and right, and a transfer device 12 is interposed between the holding parts 2 and 3. Processed material holding device.