KR100742873B1 - Apparatus For Supplying Strips Into A Heating Furnace Automatically - Google Patents

Abstract

There is provided a strip continuous feed apparatus in a furnace for fixing the strips appropriately in accordance with the size and shape of the strips and supplying them to the furnace.

The present invention is a support disposed on the exit side of the heating furnace; A forward and backward part having a movable table movable along a guide groove of the support and having first driving means for driving the movable table; An elevating unit mounted on the movable table and provided with an elevating table configured to elevate in the vertical direction, the elevating unit having second driving means for driving the mounting table up and down; A mounting part for applying a power to the electrodes and the electrodes arranged on the mounting table to attach the strip to the ends of the electrodes by magnetic force; And a cooling unit having pipes for distributing cooling water in the inner space of the mounting table to protect the mounting table from external heat.

The present invention can prevent the deterioration of the mounting table to accurately place the strip in the desired position of the furnace, even if the shape of the strip is easily fixed it can be transported into the interior of the furnace by various shapes of products It has the effect of heat-treating.

Furnace, Strip Continuous Feeder, Mounting, Lightweight Automotive, Hot Pressing Forming

Description

Apparatus For Supplying Strips Into A Heating Furnace Automatically}

1 is an external perspective view showing a structure in which a strip continuous supply apparatus in a heating furnace according to the present invention is disposed on the side of the heating furnace.

2 is a side cross-sectional view showing the main part of the strip continuous feeder in the furnace according to the present invention.

Figure 3 is an exploded perspective view of the mounting portion provided in the strip continuous supply apparatus in the furnace according to the present invention.

4 is a cross-sectional view of the mounting table provided in the strip continuous supply apparatus in the furnace according to the present invention.

5 is an explanatory view of the operation of the strip continuous supply apparatus in the furnace according to the present invention,

         a) when transferring flat strips of lower loading layers,

         b) is the case of conveying a flat strip of high loading layer.

6 is an explanatory view of the operation of the strip continuous feeder in the furnace according to the present invention,

         a) when conveying curved strips of lower loading layers,

         b) is the case of conveying a curved strip of a high loading layer.

       <Description of the symbols for the main parts of the drawings>

1 .... Strip continuous feeder in furnace according to the invention

5 .... Furnace 7 .... Doorway

10 .... Support 12 .... Mobile

14 .... Guide groove 16 .... Guide sphere

20 .... Forward and reverse 22 .... First drive means

24 .... drive gear 26 .... rack gear

30 .... Lifting section 32 .... Second drive means

34 .. Connecting rod 40 .... Mounting rod

43 .... Electrode 45 .... Lower fixing plate

47 .... Sealing plate 49 .... Guide tube

50 .... Mounting 52a, 52b .... Coolant port

60 ... Power Controller 62 ... Wires

70 .... Cooling part 72 ... Coolant pipe

77 .... Coolant source

The present invention relates to a device for continuously supplying the strip used for the weight reduction of the vehicle into the interior of the furnace, more specifically to properly fix the strip in accordance with the size and shape of the strip, even in a high-temperature heating furnace environment The present invention relates to a continuous feed strip in a furnace that is capable of quickly placing the strip in the correct place, thereby accurately heating the strip to the desired temperature to improve the quality of the strip.

In general, the strip material used to reduce the weight of the vehicle is subjected to a Hot Pressing Forming Process. This hot pressing forming process introduces a strip obtained for press hardening into an interior of a furnace having a function for continuous operation, and heats the strip by adjusting the heating temperature to a desired temperature.

The strips which have been heated and drawn out are then press-formed in a hot state using a press operating at a high speed and simultaneously cooled to obtain a strip product having high hardness.

The conventional method performed in such a hot pressing forming process is as follows.

Conventionally, a strip inlet device for introducing the strip into the inside of the furnace has been provided, but such a conventional device does not have a cooling means, and thus the strip inlet device easily deteriorates due to the temperature of the furnace maintained at 950 ° C.

In this way, if the strip entry device is deteriorated and deteriorated, it takes too much time to repair it, and it is impossible to supply the strip to the proper position inside the furnace, thus preventing the strip from achieving the desired heating. do.

In such a case, since the heated strip cannot achieve a uniform heating degree as desired, it is difficult to produce a precise hot press forming product when forming the strip using the same.

The present invention has been proposed in order to solve the above problems, the object of which is to fix the strip without causing the deformation of the strip, and does not cause deformation even by the high temperature of the furnace to seat the strip in the correct position inside the furnace It is possible to provide a continuous strip feeding device in a furnace that can be formed, and thus, can be formed into a precise hot press forming product through suitable strip heating of the desired form.

In order to achieve the above object, the present invention provides a device for continuously supplying the strip into the heating furnace,

A support disposed on the entrance side of the heating furnace;

A forward and backward part having a movable table movable along a guide groove of the support and having first driving means for driving the movable table;

An elevating unit mounted on the movable table and provided with an elevating table configured to elevate in the vertical direction, the elevating unit having second driving means for driving the mounting table up and down;

A mounting part for applying a power to the electrodes and the electrodes arranged on the mounting table to attach the strip to the ends of the electrodes by magnetic force; And

And a cooling unit configured to protect the mounting table from external heat by providing pipes for circulating the cooling water in the inner space of the mounting table. To provide.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The strip continuous feeder 1 in the furnace according to the invention is for continuously feeding the strip S into the furnace 5 as shown in FIG. 1.

The strip continuous feeder 1 in the furnace according to the invention has a support 10 arranged on the entrance 7 side of the furnace 5.

The support 10 is made of an iron frame, which is structurally rigid, and is arranged side by side at the entrance 7 side of the heating furnace 5.

In addition, the present invention is provided with a moving base 12 movable along the guide groove 14 of the support 10, the front and rear parts having a first drive means 22 for driving the moving base 12 Has 20.

The movable base 12 is positioned across the width of the support 10 at the upper portion of the support 10, the front and rear portions 20 are guide grooves 14 provided on both sides of the upper portion of the support 10 Therefore, as the forward and backward movement of the movable table 12, the forward and backward portion 20 has a first driving means 22 fixed to one side of the movable table 12.

As shown in FIG. 2, the first driving means 22 includes a driving motor fixed to the moving table 12, a driving gear 24 mounted to a rotating shaft of the driving motor, and the driving gear 24. And a long rod-shaped rack gear 26 that is geared and fixed to the upper side of the support 10.

Such a forward and backward unit 20 is such that when the drive gear 24 is rotated by the operation of the drive motor forming the first drive means 22, the drive gear 24 to move along the rack gear 26. The movable table 12 is capable of moving forward and backward from the upper side of the support 10 toward the entrance 7 side of the heating furnace 5.

In addition, the forward and backward parts 20 further include a guide sphere 16 for allowing the movable table 12 to move forward and backward more accurately on the support 10. That is, the movable stand 12 is equipped with guide spheres 16 protruding from each of the lower surfaces on both sides thereof, as shown in FIG. 2, and the guide spheres 16 correspond to the upper surface of the support 10. To form a guide groove 14 for coupling.

Therefore, the guide sphere 16 is seated in the guide groove 14, so that when the moving table 12 is moved forward and backward by the first drive means 22, so that the forward and backward is made exactly.

In addition, the present invention includes a mounting table 40 mounted on the movable table 12 and lifting up and down, and having a second driving means 32 for driving the mounting table 40 up and down ( 30).

The elevating unit 30 is provided in the movable table 12 and elevates the mounting table 40 up and down with respect to the movable table 12. As shown in FIG. 2, the second driving means 32 includes a lifting cylinder fixed to the moving table 12, and the rod 32a of the lifting cylinder is connected through a b-shaped connecting table 34. The mounting table 40 is connected horizontally. The lifting cylinder constituting the second drive means 32 is preferably a hydraulic or pneumatic power cylinder, and its rod 32a is disposed downward and fixed to the upper end of the connecting rod 34. Therefore, when the lifting cylinder operates and the rod 32a moves up and down, the second driving means 32 raises and lowers the mounting table 40 through the connecting table 34.

In addition, the present invention is a mounting portion for applying the power to the plurality of electrode rods 43 and the electrode rods 43 disposed on the mounting table 40 to attach the strip (S) to the end of the electrode rods 43 by magnetic force. 50 is provided.

As shown in FIGS. 3 and 4, the mounting unit 50 includes a plurality of electrodes 43 and a strip S may be selectively applied to the electrodes 43 by applying power to the electrodes 43. It can be attached.

The mounting table 40 having a plurality of electrode bars 43 is fixed to the lower fixing plate 45 and the upper portion of the lower fixing plate 45 having a box-shaped inner space and forming a plurality of holes 45a. And a sealing plate 47 formed with a plurality of holes 47a corresponding to the holes 45a of the lower fixing plate 45, and the holes 45a of the lower fixing plate 45 and the sealing plate 47. A plurality of cylindrical guide tubes 49 joining the 47a.

In the mounting table 40 as described above, the sealing plate 47 is coupled to the lower fixing plate 45 by welding, and the lower fixing plate 45 is inserted into the holes by the guide tubes 49 to be firmly mounted by welding. ) And the inner space formed by the sealing plate 47 and the guide tube 49 form a sealed space, which forms a cooling chamber. In addition, the coolant ports 52a and 52b are formed at one side of the lower fixing plate 45 to achieve the inlet and discharge of the coolant to the sealed space.

In addition, the mounting portion 50 is that the electrode rods 43 are fitted to each of the guide tube 49 is fitted from the top, such that the electrode 43 is mounted so as to slide up and down inside the guide tube 49. do. In addition, a stepped portion 43a is formed at an upper end of each of the electrode bars 43, and is configured to be maintained without falling out through the guide tube 49.

In addition, a cover 54 that covers and protects the electrode rods 43 from the outside is fixed to the mount 40 to an upper side of the mount 40 on which the electrode rods 43 are mounted. The cover 54 may be fixed through a plurality of bolts (not shown) or the like, or may be fixed through welding.

In addition, the mounting unit 50 is provided with a power controller 60 to apply the power to the electrode 43 to the electromagnetic force to the strip (S) attached to the lower surface of the electrode 43 by a magnetic force. The power controller 60 may be electrically connected to the electrode 43 through a plurality of wires 62 to supply power to the electrode 43 and exert a magnetic force according to a predetermined program or by a command of an operator. have.

In addition, the present invention includes a cooling unit 70 having cooling water pipes for distributing cooling water in the inner space of the mounting table 40 to protect the mounting table 40 from external heat.

The cooling unit 70 is to protect the mounting table 40 on which the electrode rods 43 are mounted from the high temperature of the heating furnace 5, and circulates and supplies the coolant to the interior of the mounting table 40.

The cooling unit 70 connects the cooling water pipes 72 made of flexible pipes connected to the cooling water supply source 77 to the cooling water inlet ports 52a and 52b of the mounting table 40. Therefore, the cooling chamber formed by the internal space of the mounting table 40 is configured to circulate the cooling water from the cooling water supply source 77 through the cooling water pipe 72.

And since the cooling water pipe 72 is made of a flexible pipe, when the mounting table 40 enters the inside of the heating furnace 5 or moves up and down, the cooling table 72 smoothly moves in accordance with the movement of the mounting table 40. It is configured to supply cooling water.

In addition, the present invention is a wire (62) for supplying power to the electrode (43), the flexible tube forming the cooling water pipe (72) are all insulated (not shown) to protect from damage from high heat outside It is formed in and protected from external high heat.

The strip continuous supply device 1 in the furnace according to the present invention configured as described above is loaded on the lower side of the support 10 when the strip S is to be loaded and heated in the furnace 5. The electrodes 43 are moved to the strip S. In this case, the second driving means 32 of the elevating portion 30 is operated, the rod 32a of the elevating cylinder is lowered, and at the same time, the driving motor of the first driving means 22 is operated to mount the mount 40. ) Is moved directly above the loaded strip (S).

Then, when the magnetic force is applied by applying power to the electrode 43, the electrodes 43 attach the strips S to the bottom surface of the electrode 43 as shown in FIG. 5.

In this case, when the height of the loaded strip (S) is low, the electrode rods 43 are attached to the lower surface of the guide tube 49 by the magnetic force in the state moved to the lower side.

However, if the height of the stacked strip (S) is high, when the mounting table 40 is lowered by the operation of the second drive means 32, the strip (S) is in close contact with the lower surface of the electrode 43 (electrode rod ( 43 is pushed to the upper side of the guide tube 49, and the strip S is attached to the electrode 43 in that state.

Meanwhile, as shown in FIG. 6, the present invention can be easily attached to a strip S or a steel plate whose shape is not flat and loaded into the heating furnace 5.

That is, when the shape of the strip S is curved rather than flat, when the mounting table 40 and the electrode 43 are lowered by the second driving means 32, the electrode bars 43 are guide tubes 49. In contact with the strip (S) while moving up and down in accordance with the shape of the strip (S) in the inside, it can be raised by attaching the strip (S) or steel sheet by magnetic force.

Therefore, the present invention can be easily fixed to the strip (S) or the steel plate can be transported to the inside of the heating furnace (5) by the electrode bar 43 which can be moved up and down in the guide tube 49 with respect to various shapes of various shapes It has the effect of heat-treating the product.

When the strip S is attached by the electrode bar 43 in this way, the lifting cylinder of the second driving means 32 raises the rod 40 from the loaded strip S by raising the rod 32a. At this time, the lower surface of the electrode 43 is attached to the strip (S) by the magnetic force.

Then, after raising the strip S in this manner, the first driving means 22 of the forward and reverse portions 20 are operated to enter the strip S and the mounting table 40 into the heating furnace 5. Let's do it.

At this time, the drive motor of the first drive means 22 is operated, the drive gear 24 provided on the shaft rotates along the rack gear 26 on the support 10, the movable table 12 is heated From the outside of the (5) to the inside of the heating furnace (5) to enter the strip (S) and the mounting table 40 equipped with it.

In this case, since the coolant is circulated in the mounting table 40, it is not deteriorated or deformed by the high temperature inside the heating furnace 5. In addition, since the connecting table 34 has a b-shaped cross section, the mounting table 40 and the strip S may be disposed in the heating furnace 5 without the moving table 12 entering the heating furnace 5. ) Can be entered.

As such, when the mounting table 40 and the strip S enter the inside of the heating furnace 5, the mounting table 40 and the strip S are heated by the high temperature in the heating furnace 5, which in this case is circulated inside the mounting table 40. The cooling water absorbed absorbs the internal heat of the furnace 5 and does not cause deformation of the mounting table 40. Thus, the mounting table 40 can maintain its original designed shape and can move the strip S to the desired position.

Then, after the strip S is moved to a desired position, the second driving means 32 of the lifting unit 30 is operated to lower the strip S at the place where the strip S is placed in the heating furnace 5. Since the power supplied to the electrode 43 is cut off, the strip S is separated from the electrode 43 and lowered inside the heating furnace 5.

In such a state, the second drive means 32 lifts up the mounting table 40, and the first drive means 22 reversely rotates the driving motor so that the moving table 12 is brought to the initial position. 40 is to exit to the outside of the heating furnace (5).

According to the present invention as described above, since the product for hot press forming necessary for weight reduction of the automobile can be continuously supplied to the heating furnace, the work productivity can be improved.

In addition, since the deterioration of the mounting table can be prevented in the process of supplying the strip to the furnace, the heating quality of the strip can be improved by arranging and heating the strip accurately at a desired position of the furnace. It can produce high quality hot press forming products.

In addition, even if the shape of the strip is curved rather than flat, the electrode rod that can be moved up and down in the guide tube can be easily fixed and transported to the interior of the furnace to heat the products of various shapes To have.

While the invention has been shown and described with respect to specific embodiments thereof, it has been described by way of example only to illustrate the invention, and is not intended to limit the invention to this particular structure. Those skilled in the art will appreciate that various modifications and changes of the present invention can be made without departing from the spirit and scope of the invention as set forth in the claims below. Nevertheless, it will be clearly understood that all such modifications and variations are included within the scope of the present invention.

Claims (7)

An apparatus for continuously feeding a strip into a furnace, A support 10 disposed at the entrance side of the heating furnace 5; A drive having a movable table 12 movable along the guide groove 14 of the support 10, the drive motor fixed to the movable table for driving the movable table 12 and the drive mounted to the rotating shaft of the drive motor A forward and reverse part having a first driving means 22 having a gear rod 24 and a long rod-shaped rack gear 26 which is geared to the drive gear and fixed to the upper side of the support 10. 20); A lower fixing plate 45 having a plurality of holes formed therein and a sealing plate 47 fixed to the lower fixing plate and having a plurality of holes formed therein so as to be mounted on the movable table 12 so as to be movable upward and downward; It includes a plurality of cylindrical guide tube 49 connecting the holes of the fixing plate 45 and the sealing plate 47, the lower fixing plate 45 and the sealing plate 47 and the guide tube 49 to form a closed space Electrodes 43 are mounted to be slidable up and down inside the guide tube 49, and upper ends of the respective electrode bars 43 are formed with stepped portions to be maintained without falling to the lower side through the guide tube 49. Mounting mount 40; In order to drive the mounting table 40 up and down, the lifting cylinder having the rod 32a and the rod 32a of the lifting cylinder are connected to the mounting table 40 via the second driving means 32. Lifting portion having 30; A mounting unit 50 for applying power to the electrode 43 to attach the strip to the end of the electrode with magnetic force; And And a cooling unit 70 configured to circulate and supply coolant through a flexible coolant pipe 72 from a coolant supply source in a sealed space of the mount 40 to protect the mount 40 from external heat. Strip continuous supply apparatus, characterized in that the furnace. delete According to claim 1, wherein the forward and backward portion 20 includes a guide sphere 16 on both sides of the lower side of the movable table 12, the guide sphere 16 is a guide formed on the upper surface of the support (10) A continuous feed strip in a furnace, characterized in that it is movable in a groove (14). delete delete delete delete

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