KR102028910B1 - Blank alignment and transfer device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blank alignment and moving device, which is provided in the vicinity of a roller conveyor and is moved to a roller conveyor in a heating furnace to support a roller conveyor in a state in which both ends of the blank are supported to arrange and align the blank in the same direction as the blank moving direction. And a clamping unit for clamping the blanks for moving from the storage to the shelf for storing or moving the blanks moved outwardly by the alignment means. The guide member is installed at a predetermined height and is rotatably mounted while being moved up and down, the movable member is installed to be movable on the guide member, and the movable member is provided, and the blank is provided to clamp the blank moved from the roller conveyor. Both ends of the blank to be arranged long in the feed direction Comprising: a holder unit, a moving unit for moving the moving member in the longitudinal direction of the guide member, whereby it is possible to structure that is simple to reduce the cost of equipment in accordance with the load.

Description

Blank alignment and transfer device

TECHNICAL FIELD The present invention relates to blank alignment and movement, and more particularly, to a blank alignment and movement apparatus capable of gripping and moving a blank after aligning the blank moved after being heat treated in a heating furnace.

In general, hot press molding heats a blank at a high temperature (about 900 ° C. or higher) in a heating furnace and inserts it into a mold in order to realize advantages such as weight reduction and stability of automobile parts, and moldability of products. It is a technology that improves the strength and light weight by generating martensite on the blank by indirect rapid cooling by passing the cooling water into the mold after molding to form.

Currently, this is applied to many parts, and in particular, the trend is being widely applied to bumpers and fillers.

In hot press molding, the blank is heated in a high temperature furnace for a certain time, then cooled by moving through a roller conveyor, and after being moved by a certain distance, clamped by a separately provided clamp to a separate pallet adjacent to the furnace. Will be moved. The furnace is included with the roller conveyor and is configured to be discharged to the outside after being moved through the roller conveyor.

As described above, after the blank heated in the hot furnace has been moved a certain distance through the roller conveyor, it must be moved to a separate pallet by a separate clamp, which separate clamp is used to clamp the blank that has not yet been completely cooled. In order to be able to use at a high temperature in order to use expensive things there is a problem that takes a lot of cost.

Korea Patent Publication 10-0830822 (2008.05.13.)

Accordingly, the present invention has been made in order to solve the above problems, the blank alignment using a shape memory alloy that is deformed according to the temperature, and then by clamping and moving the blanks to reduce the cost of installation And a mobile device.

The present invention for achieving the above object, as a blank alignment and movement device that can be moved by clamping after aligning the blank moved through the roller conveyor of the heating furnace, provided in the vicinity of the roller conveyor roller conveyor of the heating furnace To move and move from the roller conveyor to the outside while supporting the both ends of the blank in order to arrange and align the blank in the same direction as the moving direction of the blank, and to store or move the blank moved to the outside by the aligning means. Clamping unit for clamping the blank to move to the shelf for, including; the alignment means, the vertical frame, the guide member is installed at a predetermined height of the vertical frame rotatably mounted while being moved, the movable installation on the guide member And a moving member which is provided on the moving member, And a holder unit for supporting both ends of the blank so that the blank is long in the conveying direction of the roller conveyor so as to clamp the blank being moved in the roller conveyor, and a moving unit for moving the moving member in the longitudinal direction of the guide member. It is characterized in that the configuration.

In addition, the guide member is formed of a pipe-shaped member of which the inside is hollow, and it is preferable that the moving member is coupled to be movable inside.

In addition, the holder unit is provided to be movable inside the moving member, provided with a spaced apart at intervals greater than the width of the blank, a pair of finger member is formed with a finger projection on the upper end to be in close contact with each side of the blank, It is preferable to include a finger moving member for pressing and moving the pair of finger members, respectively, inside the moving member to move the pair of finger members in a direction facing each other.

In addition, it is preferable that the moving member has a pair of flow holes spaced apart from each other so that the finger protrusion protrudes and reciprocates.

Further, the finger moving member is shaped to press the finger member while moving to the roller conveyor to align the blanks on the roller conveyor while the holding unit is located outside the roller conveyor of the furnace while returning to the original state by heat. It is preferable to be molded from a memory alloy.

In addition, the clamping unit includes a vertical frame, a hanger frame which is installed and lifted and rotatably mounted on the vertical frame, a pair of clamping members which are provided to be movable on the hanger frame and are spaced apart at intervals greater than the width of the blank, It is preferably configured to include an operating unit for reciprocating the pair of clamping members, an elevating unit for elevating the hanger frame relative to the vertical frame, and a rotating unit for rotating the hanger frame relative to the vertical frame.

According to the present invention, since the alignment means for aligning the blanks moved to the roller conveyor of the heating furnace is composed of a shape memory alloy which is restored to its original state by heat, the structure can be simply configured and the cost can be reduced.

1 is a plan view showing a blank alignment and moving device according to an embodiment of the present invention.
FIG. 2 is a plan view of the alignment means in the blank alignment and movement device of FIG.
Figure 3 is a perspective view showing a moving member having a holder unit in the alignment means of Figure 2;
4 is a perspective view of a portion of the clamping unit in the blank alignment and mover of FIG.
Figures 5a and 5b is a view showing a process of pressing and spaced apart the finger member supporting the blank in the blank alignment and moving device of Figure 1;

Specific embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a plan view showing a blank alignment and moving device according to an embodiment of the present invention, Figure 2 is a plan view showing the alignment means in the blank alignment and moving device of FIG.

3 is a perspective view illustrating a moving member having a holder unit in the alignment means of FIG. 2, FIG. 4 is a perspective view illustrating a part of the clamping unit in the blank alignment and movement device of FIG. 1, and FIGS. 5A and 5B 1 is a view showing a process of pressing and spaced apart the finger member supporting the blank in the blank alignment and moving device of FIG.

First, the heating furnace 100 is configured to discharge the outside after moving a predetermined distance after heating the blank (B) is placed on the roller conveyor 110 is supplied.

Roller conveyor 110 is a plurality of rollers rotatably coupled to the upper portion of the frame formed of a plurality of box-shaped frame, a motor (not shown) is coupled to the side of the frame, the rotational force of the motor is a power transmission member ( It is configured to transfer the blank (B) mounted on the roller by transferring to a plurality of rollers through the (not shown).

Here, the coupling relationship between the motor, the power transmission member, and the plurality of rollers is a conventional technique, and a detailed description thereof will be omitted.

In the vicinity of the roller conveyor 110 is provided with a shelf 200 for loading and moving or storing the blank (B) heated and heat-treated in the heating furnace (100).

1 to 5, the blank alignment and moving device according to an embodiment of the present invention is heated and heated in the heating furnace 100, and aligned with the blank B moved through the roller conveyor 110. Later, for moving to the shelf 120 provided in the vicinity of the roller conveyor 110, it comprises an alignment means 200 and the clamping unit 300.

Alignment means 200 is provided in the vicinity of the roller conveyor 110 to support both ends of the blank (B) moved to the end of the roller conveyor 110 to move to the outside of the roller conveyor 110, The vertical frame 130, the guide member 210, the moving member 220, the holder unit 230, and comprises a moving unit (not shown).

The vertical frame 130 is usually formed of a pillar having a cross section, such as a rectangular shape or an H beam, and supports the holder unit 230 to be installed at a predetermined height with respect to the ground.

The guide member 210 is installed at a predetermined height of the vertical frame 130, and may be mounted to be elevated. The guide member 210 is horizontally disposed in a bar shape and is formed in a 'c' shape. The guide member 210 is formed in a hollow shape thereof, and is configured such that the moving member 220 can be moved from the inside. Guide member 210 is composed of a pair of bar-shaped members, in the state spaced apart from each other by connecting one end with a separate bracket may be configured in a 'C' shape.

Here, the guide member 210 is installed to rotate while being installed to move up and down with respect to the vertical frame (130). Guide member 210 may be configured to be elevated by the lifting means consisting of a drive motor, a pair of sprockets, a chain, and a mounting bracket. In addition, the guide member 210 is installed on the mounting bracket, it may be installed to rotate by a separate motor.

Here, the coupling relationship between the driving motor constituting the lifting means, the pair of sprockets, the chain and the mounting bracket, and the operating technology thereof are already known and a detailed description thereof will be omitted.

The moving member 220 is coupled to the inner side of the guide member 210 so as to be reciprocated in the longitudinal direction of the guide member 210, the cross section is a square-shaped pipe member so that the holder unit 230 to be described later is mounted It is composed. Of course, the cross-sectional shape of the moving member 220 is not limited to the rectangular shape, and may be applied in a variety of shapes.

The holder unit 230 is in close contact with both ends of the blank B so as to easily clamp the blank B, which is heat-treated in the heating furnace 100 and moved to the roller conveyor 110, so that the blank B is a roller conveyor. The blank B is aligned in the conveying direction of the 110 so as to be arranged, and includes a pair of finger members 231 and a finger moving member 232.

The pair of finger members 231 are coupled to the movable member 220 so as to be movable in the longitudinal direction, and are spaced apart from each other so as to be in close contact with both ends of the blank B. The pair of finger members 231 are blank ( Spaced at intervals greater than the width of B).

The upper end of the finger member 231 is formed to protrude upward, the finger protrusion (231a) is in close contact with the side end of the blank (B) is formed protruding. That is, the pair of finger members 231 are formed in an approximately 'L' shape so that the finger protrusions 231a formed on the upper ends thereof are in close contact with both ends of the blank B.

Accordingly, a pair of flow holes 221 are inserted into the movable member 220 such that the horizontal portion of the finger member 231 is fitted inside the movable member 220 and the vertical finger protrusion 231a protrudes outward. Is formed. The pair of flow holes 221 are for limiting the movement of the pair of finger members 231, respectively, are formed spaced apart from each other, the interval is preferably formed equal to or larger than the width of the blank (B). Do. That is, the flow hole 221 is composed of a long hole formed in the longitudinal direction of the moving member 220.

Finger moving member 232 is for moving the finger member 231 to align the blank (B), it is received inside the moving member 220 of the finger member 231 inside the moving member 220 It is configured to be in contact with the end of the horizontal portion. The finger moving member 232 is composed of a bar-shaped member formed of a shape memory alloy which is returned to its original shape when heat is applied. That is, when the finger moving member 232 is moved to the roller conveyor 110 of the heating furnace, the shape of the finger moving member 231 is deformed by the heat and presses the finger member 231 to move.

For example, the finger moving member 232 is formed of a shape memory alloy, but before applying heat, the coil spring is unrolled and unfolded in a straight form when heat is applied to the coil spring. Therefore, when the finger moving member 232 is moved toward the roller conveyor 110 disposed adjacent to the heating furnace 100 in order to align the blank B, the finger member is deformed in a straight shape due to the property of returning to its original state. 231 is configured to press toward the blank B. As shown in FIG.

The moving unit reciprocates the moving member 220 in which the holder unit 230 is installed in the guide member 210, and includes a first motor mounted on the guide member 210 and a pinion gear rotated by the first motor. It is configured to include a rack gear provided in the moving member 220. In addition, the moving unit is provided inside the guide member 210, it may be composed of a solenoid for reciprocating the moving member 220 horizontally. This solenoid is a well-known technique, and detailed structure and operation relationship thereof will be omitted.

The clamping unit 300 is for moving the blank B moved to the outside by the aligning means to the shelf 120, the vertical frame 130, the hanger frame 310, and a pair of clamp members 330. ), An operating unit, a rotating unit, and a lifting unit.

The vertical frame 130 is usually formed of a pillar having a cross section, such as a rectangular shape or an H beam, and supports the hanger frame 310 to be installed at a predetermined height with respect to the ground.

The hanger frame 310 is rotatably coupled to the vertical frame 130 so as to be lifted and formed in a substantially 'ㅌ' shape. The hanger frame 310 is formed in three vertical parts spaced apart from each other. The hanger frame 310 is installed to be rotated while being mounted to the vertical frame 130 and is disposed in a planar shape as shown in FIG. 1.

Here, the hanger frame 310 may be installed to be elevated in the vertical frame 130 by the lifting means, such as the guide member 210 of the alignment means 200.

The pair of clamping members 330 are provided to be movable in the longitudinal direction under one of the horizontal parts of the horizontal part of the hanger frame 310, and are provided at a predetermined interval. That is, the pair of clamping members 330 are configured such that one clamping member 330 is moved or two clamping members 330 are moved away from each other or close to each other by an operation unit (not shown) which will be described later. do.

The operation unit is composed of a motor generating a rotational force, and a lead screw rotated by the motor and rotatably mounted to the horizontal portion of the hanger frame 310. Therefore, one clamping member 330 or a pair of clamping members 330 is screwed to the lead screw is configured to move. In addition, the operation unit may be configured to horizontally move the one or a pair of clamping members 330 by configuring one or a pair of solenoids.

On the side of the clamping member 330 may be formed a plurality of saw-tooth engaging projections to take both ends of the blank (B) when clamping the blank (B). In addition, one locking protrusion may protrude from the lower end of the clamping member 330 so as to be caught on the bottom surfaces of both sides of the blank B.

The clamping unit 300 further includes a pressing unit 320 for pressing the finger protrusions 231a so as to space the pair of finger protrusions 231a which are in close contact with both ends of the blank B. .

The pressing unit 320 contacts the opposite ends of the blank B to press the finger protrusions of the pair of finger members 231 of the holder unit 230 to align the blank B so that both ends of the blank B are pressed. Spaced apart from the, it is composed of a pressurized protrusion that protrudes downward from the lower side of the horizontal portion of the hanger frame 310.

Here, when pressing the upper edge of the pair of finger members 231 spaced apart from each other by a predetermined distance, the bottom surface of both ends is formed as an inclined surface so that the pair of finger members 231 are moved in a direction away from each other.

5A and 5B, when the distance between the inclined surface and the inclined surface respectively formed at the bottom of both ends of the pressure protrusion is referred to as a, and supports both sides of the blank B with the finger protrusion 231a, the finger protrusion 231a When the distance between b) is b, it is preferable that a is formed to be smaller than b so as to be in contact with the upper end of the finger protrusion 231a on the inclined surface.

The operation of such a blank alignment and moving device will be briefly described.

After the blank B is supplied to the roller conveyor 110 of the heating furnace 100, the blank B is heated in a brazier (not shown) of the heating furnace 100 and heat-treated, and then, the roller B is transferred to the roller conveyor 110 for a predetermined distance. Then, in the alignment means provided in the vicinity of the roller conveyor 110, the guide member 210 is raised or lowered by the lifting means to the holder unit of the moving member 220 to the lower side of the blank (B) in the roller conveyor 110 ( 230 is positioned to be movable. Then, a moving unit (not shown) provided in the guide member 210 is operated to move the moving member 220 provided with the holder unit 230 to the lower side of the blank B.

Thereafter, the blank B is positioned between the pair of finger protrusions 231a of the holder unit 230, and at this time, the finger moving member 232 of the holder unit 230 is a roller of the heating furnace 100. As it is heated by the heat of the conveyor 110, the finger member 231 is pressed toward the blank B as it is returned to its original shape. Here, the roller conveyor 110 of the heating furnace 100 is located in the heating furnace, and the outside is maintained at a high temperature higher than the temperature.

That is, two moving members 220 are sandwiched between the rollers and the rollers in the roller conveyor 110 so as to be positioned at the front and rear sides of the blank B, respectively, and the front and rear sides of the blank B with the finger member 231. Will support the tier. By supporting the front and rear both ends of the blank B with the finger member 231 in this way, the blank B is aligned in the conveying direction of the roller conveyor 110.

Thereafter, the lifting means are operated to lift the blank B slightly from the roller conveyor 110, and then the moving unit is operated to move the moving member 220 toward the vertical frame 130 to move the blank B to the roller conveyor. It is taken out at 110.

Then, the rotating means is operated to rotate the guide member 210 to be positioned below the hanger frame 310 of the clamping unit 300. In this case, the pressing unit 320 of the clamping unit 300 should be positioned above the finger protrusion 231a of the finger member 231 in the alignment means 200.

Subsequently, the clamping unit 300 installed to move up and down on the vertical frame 130 is lowered to press the finger protrusions 231a supporting both ends of the blank B by the pressure protrusion of the pressure unit 320. do.

Then, as the finger moving member 232 formed of the shape memory alloy is drawn out to the outside, the finger moving member 232 is cooled to the press unit 320 to return to a state before the alignment of the blank B, that is, a short length. By pressing, the length is reduced more quickly. As a result, the pair of finger protrusions 231a supporting both ends of the blank B are moved away from each other.

Thereafter, the motor for moving the clamping member 320 is operated to move the clamping member 320 to both ends of the blank B to clamp both ends of the blank B. FIG.

When the blank B is clamped by the clamping member 320 as described above, the rotating means (not shown) provided in the vertical frame 130 is operated to move the hanger frame 310 of the clamping unit 300 toward the shelf 120. Rotate Then, by operating the motor for moving the clamping member 320 again, by moving the clamping member 320 to the opposite side of both ends of the blank (B) to release the clamping of the blank (B), to the shelf 120 Complete the move.

As described above, the present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely exemplary, and various modifications and equivalent other embodiments of the present invention may be made by those skilled in the art. I understand that it is possible. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

100: heating furnace
110: roller conveyor
120: shelf
200: alignment means
210: guide member
220: moving member 221: flow hole
230: holder unit 231: finger member
231a: finger protrusion 232: finger moving member
300: clamping unit
310: hanger frame 320: pressing unit
320: clamp member
B: blank

Claims (6)

A device for aligning and moving a blank, which can be moved by clamping after aligning a blank moved through a roller conveyor in a furnace,
Alignment means provided in the vicinity of the roller conveyor is moved to the roller conveyor of the heating furnace to move from the roller conveyor to the outside while supporting both ends of the blank to arrange and align the blank in the same direction as the moving direction of the blank;
And a clamping unit for clamping the blank to move the blank moved outwardly by the alignment means to a shelf for storing or moving the blank.
The alignment means includes a vertical frame,
A guide member which is installed at a predetermined height of the vertical frame and rotatably mounted while being lifted,
A movable member installed to be movable on the guide member;
A holder unit provided at the moving member, the holder unit supporting both ends of the blank so that the blank is elongated in the conveying direction of the roller conveyor so as to clamp the blank moved from the roller conveyor;
And a moving unit for moving the moving member in the longitudinal direction of the guide member.
Holder unit,
A pair of finger members provided to be movable inside the movable member and spaced apart at intervals greater than the width of the blank, the finger protrusions being formed at the top to be in close contact with both sides of the blank;
And a finger moving member for pressing and moving the pair of finger members, respectively, inside the moving member to move the pair of finger members in a direction facing each other.
Finger moving member,
The holding unit is formed of a shape memory alloy to press the finger member while being moved to the roller conveyor to align the blanks in the roller conveyor in a state located outside the roller conveyor of the furnace and returning to the original state by heat. Arrangement and moving device of the blank.
The method of claim 1,
The guide member is formed of a pipe-shaped member of which the inside is hollow, and the alignment and moving device of the blank, characterized in that the movable member is movably coupled to the inside.
delete The method of claim 1,
The moving member, the alignment and moving device of the blank, characterized in that the pair of flow holes for protruding reciprocating movement of the finger projection is formed spaced apart.
delete The method of claim 1,
The clamping unit is
With a vertical frame,
A hanger frame mounted on a vertical frame so as to be elevated and rotatable;
A pair of clamping members provided on the hanger frame to be movable and spaced apart at intervals greater than the width of the blank;
An operation unit for reciprocating a pair of clamping members,
An elevating unit for elevating a hanger frame relative to a vertical frame;
Rotating unit for rotating the hanger frame relative to the vertical frame; blank alignment and movement device comprising a.

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