JP3624977B2 - Equipment for cooling extruded material in extrusion press equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling facility for extruded material extruded from an extrusion press apparatus that performs extrusion processing, which is one of metal plastic processing.
[0002]
[Prior art]
In extrusion molding using an extrusion press, a billet contained in a container is extruded from a die having a predetermined shape by a stem to obtain a molded product such as a bar or wire having a predetermined cross-sectional shape. Extrusion material (product) after extrusion has many extrusions. Product needs to have mechanical properties, surface oxidation and prevention of scratches, etc. depending on the material. Underwater extrusion (rapid cooling), air cooling after air extrusion, air cooling after air extrusion It is cooled in a process such as (slow cooling). That is, it is most desirable to efficiently cool and carry out as fast as possible after extrusion, but for materials with problems such as bending due to rapid cooling, air cooling (slow cooling) is performed after extrusion. After cooling to temperature, it must be water cooled.
[0003]
An example of the conventional configuration of the cooling equipment for the extruded material extruded from such an extrusion press apparatus is shown in FIG. 4, which is a cross-sectional view orthogonal to the extrusion direction.
[0004]
This is because a support roller row 2 provided at an extrusion position of the extruded material 1 is disposed inside the water tank 3, and a walking beam 4 is provided on the side of the water tank 3, and a transfer mechanism 5 is provided therebetween. It is configured with.
[0005]
In the support roller row 2, a plurality of support rollers 2 </ b> A that rotate about a horizontal axis orthogonal to the extrusion direction are arranged in the extrusion direction, and the support roller 2 </ b> A rotates at a peripheral speed that synchronizes with the extrusion speed of the extruded material 1. Driven to support the extruded material 1. In the transfer mechanism 5, the transfer arm 5 </ b> A disposed so as to be swingable between the support rollers 2 </ b> A holds the extruded material 1 supported by the support roller 2 </ b> A row with a hook at the tip thereof, and is indicated by an imaginary line in the drawing. And the extruded material 1 is transferred onto the walking beam 4. Although the walking beam 4 is not shown in detail, a moving beam is disposed between the fixed skids 4A, and the extruded material 1 placed by moving the moving beam up and down and moving sideways is directed from the left side to the right side in the figure. In this way, it acts so that it is gradually transferred at a predetermined pitch.
[0006]
[Problems to be solved by the invention]
In the above-described conventional configuration, the extrusion can be performed by performing extrusion in a state where the water tank 3 is filled with cooling water, and by performing the extrusion process in a state where the cooling water in the water tank is drained and emptied. Air cooling is possible after air extrusion. However, it cannot cope with underwater cooling after extrusion in the air, and the versatility of the extruded material is narrow. That is, the extrusion material is limited because it cannot cope with various cooling processes.
[0007]
The present invention has been made in order to solve the above-described problems, and can flexibly cope with various cooling processes, and can be used for an extrusion material in an extrusion press apparatus having a wide versatility with respect to various extrusion materials. The purpose is to provide cooling equipment.
[0008]
[Means for Solving the Problems]
The extrusion material cooling equipment in the extrusion press apparatus of the present invention that achieves the above object is that the cooling water tank of a predetermined depth has its maximum water level extruded from the extrusion press apparatus in front of the extrusion direction of the extrusion material by the extrusion press apparatus. Provided above the material extrusion position by a predetermined amount, and in the cooling water tank, a support means for supporting the extrusion material at the extrusion material extrusion position and a holding member for holding the extrusion material are below the support means. A cooling transfer means for receiving the extruded material at the transfer position and transferring it in the cooling water tank, and transferring the extruded material supported by the support means to the holding member at the transfer position of the cooling transfer means. A transfer means for loading, and a carry-out transfer means for transferring the extruded material held by the holding member of the cooling transfer means and transferred to a predetermined position to a carry-out means provided outside the cooling water tank. Characterized in that it is configured with a swingable holding member capable of maintaining the posture of the holding surface by the rotation of the unloading arm and the tip that.
[0009]
Further, the transfer means is configured such that the support means is inclined to the cooling transfer means side and the held extruded material is transferred to the holding member at the transfer position. .
[0010]
Further, the unloading / transferring means is configured by providing sprockets having the same number of teeth at the rotation center of the unloading arm and the swing center of the holding member, and by hanging a chain between these sprockets. To do .
[0011]
Further, the cooling transfer means is characterized in that the holding member is configured to move obliquely from a transfer position below the support means to a carry-out position above the maximum water level.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a plan view showing a conceptual configuration of an embodiment of a cooling facility for extruded material in an extrusion press apparatus according to the present invention, FIG. 2 is an enlarged plan view of part A, and FIG. 3 corresponds to a cross section taken along line BB in FIG. FIG.
[0013]
The illustrated cooling carry-out facility includes a support roller row 30 as a support means, a cooling transfer conveyor 40 as a cooling transfer means, and a support roller in a water tank 20 as a cooling water tank provided at an extrusion position of the extrusion press apparatus 10. A swinging transfer mechanism 50 as a transfer means for transferring the extruded material 1 supported by the row 30 to the cooling transfer conveyor 40, and a discharge roller row 60 as a discharge means outside the water tank 20 from the cooling transfer conveyor 40 are extruded. A rotary transfer mechanism 70 as a transfer / transfer means for transferring the material 1 is provided.
[0014]
The water tank 20 has a length corresponding to the maximum length of the extruded material 1 extruded by the extrusion press device 10 with a predetermined width and a predetermined depth, and the extruded material 1 is extruded at a position closer to the inner surface on the left side in FIG. It is installed to be. The depth direction of the extrusion position is the highest water level H. Lower than L and intermediate water level M.I. It is set higher than L. Further, a protruding portion 21 corresponding to the rotation area of the carry-out arm 71 is provided on the side of the rotational transfer mechanism 70 disposed on the right side edge in FIG.
[0015]
The support roller array 30 is configured such that a plurality of rollers 31 are arranged at a predetermined interval in the extruding direction at the extruding position by the extruding press apparatus 10 with a plurality of rollers 31 having a rotation axis that is perpendicular to the extruding direction. In the figure, the roller 31 is cantilevered but may be supported both ends.
[0016]
The roller 31 has a drum shape whose center is smaller in diameter than both ends, and the extruded material 1 is supported by the small diameter portion in the center. The rotating shaft 31A of each roller 31 protrudes outside the water tank 20 and is rotatably supported by a bearing 32. A bevel gear 33 fixed to the tip of the roller 31 meshes with a bevel gear 35 fixed to a support roller drive line shaft 34, and is supported. The roller drive line shaft 34 is rotated at a peripheral speed synchronized with the extrusion speed of the extruded material 1 by the rotation of the roller drive line shaft 34. The shape of the roller 31 is not limited to the hourglass shape, and may be a cylindrical flat roller.
[0017]
The support roller drive line shaft 34 is disposed in the extrusion direction along the side surface of the water tank 20, and is rotationally driven by a rotational drive means such as a gear motor or a hydraulic motor (not shown) coupled to the end of the support roller drive line shaft 34. Yes.
[0018]
In the support roller row 30 having the above-described configuration, the roller 31 is rotationally driven at a peripheral speed synchronized with the extrusion speed in accordance with the extrusion action by the extrusion apparatus 10, and supports the extruded material 1 on the roller 31 without causing a slip.
[0019]
In the swing transfer mechanism 50, a transfer arm 52 is fixed to the transfer drive line shaft 51 disposed at a predetermined position substantially below the position where the support roller row 30 is disposed. A holder 53 is pivotally attached to the tip of the head.
[0020]
The transfer drive line shaft 51 is arranged in parallel with the pushing direction, and is coupled to the rod of the hydraulic cylinder 55 via an operation lever 54 fixed to an end protruding from the water tank 20. Is rotated by a predetermined angle range.
[0021]
The transfer arm 52 is placed at a position corresponding to between the rollers 31 of the support roller row 30 or between the rollers 31 as shown in the figure, and the solid line in FIG. As shown, a swing operation is performed between a substantially vertical standby state that swings most toward the support roller row 30 and a transfer state that is substantially horizontal on the right side in the drawing as indicated by an imaginary line in the drawing. ing. In the standby state in which the transfer arm 52 is positioned on the support roller 30 side, the holder 53 provided at the tip is positioned between the rollers 31 of the support roller row 30.
[0022]
The holder 53 is a lower surface of a support plate 53A in which a side wall is formed with a predetermined curvature at the end of the concave holding portion along the outer surface of the roller 31 of the support roller row 30 on the pivot point side (right side in FIG. 3). Further, the connecting plate 53B is formed to be fixed vertically, and the tip of the connecting plate 53B is pivoted to the tip of the transfer arm 52 at the right end of the connecting plate 53B with the tip toward the support roller row 30 (left side in FIG. 3). It is worn. The lower surface of the support plate 53A abuts against a stopper 52A projecting from the transfer arm 52 so that the counterclockwise swinging in FIG. Is substantially horizontal in the standby state for receiving the ink, and is substantially vertical in the transfer state in which the extruded material 1 is transferred to the cooling transfer conveyor 40.
[0023]
Further, the lower surface of the connecting plate 53B is formed as a tapered inclined surface, and when the transfer arm 52 swings from the transfer state to the standby state, the inclined roller 22 is provided on the inner surface of the water tank 20. The holder 53 is gradually swung clockwise by the operation roller 22 as the transfer arm 52 is swung, and in the standby state, the connecting plate 53B is moved from the position regulated by the stopper 52A. It is slightly swung clockwise in the figure, and its upper surface is below the upper surface of the roller 31.
[0024]
In the swing transfer mechanism 50 configured as described above, the holder 53 lifts the extruded material 1 supported by the support roller row 30 when the transfer arm 52 is swung from the transfer state to the holding state, and then the transfer arm 52 is transferred. By swinging the arm 52 to the transfer state, the arm 52 acts to transfer to the holding metal fitting 44 located at the receiving position C of the cooling transfer conveyor 40 described later. In this way, the transfer arm 52 is configured to lift the extruded material 1 supported by the support roller row 30 with the holder 53 and transfer it onto the cooling transfer conveyor 40, thereby cooling in the case of air cooling, which will be described later. A product with good surface quality can be obtained without damaging the surface of the extruded material 1 in the middle. In the case of a material or a cooling process that does not cause scratches on the surface, the support roller row 30 is cooled as a configuration in which the extruded material 1 supported by the support roller row 30 is transferred to the holding bracket 44 of the cooling transfer conveyor 40. It is good also as a structure which inclines to the transfer conveyor 40 side and rolls and hold | maintains the extruded material 1 hold | maintained.
[0025]
The cooling transfer conveyor 40 has sprockets 41A and 42A (only pitch circles are shown in FIG. 2) fixed to two line shafts 41 and 42 (drive shaft 41 and driven shaft 42) arranged in parallel to the extrusion direction. The roller chain 43 is wound around the conveyor 40A, and the conveyor 40A is arranged at the same interval as the rollers of the support roller row 30 in the extrusion direction. The arrangement of the conveyor 40 </ b> A is not limited to the same interval as the rollers 31 of the support roller row 30, and can be appropriately set as long as the position does not interfere with the swing transfer mechanism 50.
[0026]
The drive shaft 41 is disposed in the vicinity of the right side edge of the water tank 20 in FIG. 3 at a position above the maximum water level, and the driven shaft 42 is transferred to the rocking transfer mechanism 50 at a predetermined depth substantially in the center of the water tank 20. It is disposed adjacent to the drive line shaft 51. The drive shaft 41 and the driven shaft 42 are set to have a positional relationship in which the line connecting the centers thereof is 45 ° with respect to the horizontal, whereby the conveyor 40A is also provided at an angle of 45 °. The installation angle of the conveyor 40A is not limited to 45 °, and can be changed as appropriate.
[0027]
The conveyer 40A has a substantially U-shaped holding metal fitting 44 whose upper open portion spreads every other link of the roller chain 43, and the drive shaft 41 and the driven shaft 42 at the site where the roller chain 43 is disposed. A holding guide 45 laid between them supports the roller chain 43 in the upper circular path to prevent loosening and guide the rotation. In FIG. 2, only the conveyor 40A located on the rightmost side in the drawing shows the holding bracket 44, and the other conveyor 40A is omitted.
[0028]
A gear motor or hydraulic motor 46 is connected to one end of the drive shaft 41, and the drive shaft 41 is rotationally driven clockwise in FIG. 3 by this gear motor or hydraulic motor 46, thereby driving the cooling transfer conveyor 40. (All conveyors 40A are driven synchronously). The driven shaft 42 is rotatably provided and rotates following the rotation.
[0029]
In the cooling transfer conveyor 40 having the above-described configuration, the extruded material 1 is transferred to the holding metal fitting 44 at the receiving position C at the lower end of the circular orbit on the upper side of the conveyor 40 </ b> A by the swing transfer mechanism 50, and holds the extruded material 1. The metal fitting 44 moves as the roller chain 43 circulates, and transfers the extruded material 1 to the unloading position D where the circular orbit is turned upside down. As described above, the conveyor 40A is disposed at an angle of 45 °, and the drive shaft 41 is located above the highest water level, so that the extruded material 1 is placed at the right side in FIG. It is transferred to the surface of water at the highest water level. The conveyor 40 </ b> A is driven so as to be intermittently driven at a predetermined pitch so that the holding bracket 44 stops at the receiving position C and the unloading position D in accordance with the extrusion operation of the extruded material 10 from the extrusion press device 10. It is what has become.
[0030]
In the rotational transfer mechanism 70, a transfer drive shaft 71 is arranged in parallel with the extrusion direction on the upper portion of the water tank 20 on the other end side of the support roller row 30 arrangement side, and the transfer drive shaft 71 is cooled by this transfer drive shaft 71. The carry-out arm 72 is fixed at a predetermined interval that does not interfere with the conveyer 40 </ b> A of the transfer conveyor 40 (an interval between four sets of the conveyers 40 </ b> A), and a holding member 73 is pivotally attached to the tip of the carry-out arm 72.
[0031]
The transfer drive shaft 71 is driven to rotate clockwise in FIG. 3 by a gear motor (not shown) coupled to the end thereof, and the holding member 73 at the tip of the carry-out arm 72 rotating thereby is cooled. It is set so that the extruded material 1 held by the holding metal fitting 44 at the unloading position D of the transfer conveyor 40 can be received, and the received extruded material 1 can be transferred to an unloading roller row 60 described later. The carry-out arm 72 is provided in the protruding portion 21 of the water tank 20 as described above, and the carry-out arm 72 is configured to rotate in the protruding portion 21 (that is, in the water tank 20). As described above, by arranging the carry-out arm 72 in the protruding portion 21 of the water tank 20, the extruded material 1 can be transferred from the cooling transfer conveyor 40 to the carry-out roller row 60 by the rotating carry-out arm 72. It is what.
[0032]
A holding surface for holding the extruded material 1 is formed on the upper surface of the holding member 73, and is pivotally attached to the carry-out arm 72. A sprocket (not shown) is fixed, and a chain is wound between the sprocket and a sprocket (not shown) having the same number of teeth fixed to a bearing 74 that supports the transfer drive shaft 71. Even with the rotation of the arm 72 due to the rotation of 71, the holding member 73 always maintains a posture in which the holding surface faces upward.
[0033]
In the rotation transfer mechanism 70 of this configuration, the holding member is held by the holding metal fitting 44 at the carry-out position D of the cooling transfer conveyor 40 by the clockwise rotation of the carry-out arm 72 in FIG. The extruded material 1 is lifted and transferred to the carry-out roller row 60 located approximately 180 ° apart.
[0034]
Similarly to the support roller row 20, the carry-out roller row 60 is configured such that a plurality of rollers 61 are arranged at predetermined intervals in the extrusion direction with the rotation axis thereof being horizontal that is orthogonal to the extrusion direction. The roller 61 is disposed outside the protruding portion 21 of the water tank 20.
[0035]
Thus, in the cooling and unloading equipment configured as described above, the extruded material 1 can be cooled in various cooling processes as described below.
[0036]
That is, the cooling water is supplied to the water tank 20 at the highest water level H.264. By performing the extrusion molding operation in a state filled up to L , the extruded material 1 is extruded onto the support roller row 30 in a submerged state and can be extruded in water. The extruded material 1 is transferred to the cooling transfer conveyor 40 in the water by the swing transfer mechanism 50, and is sequentially transferred while being cooled by the cooling transfer conveyor 40 to reach the unloading position D on the water surface. 70 is transferred onto the carry-out roller row 60 and carried out.
[0037]
The level of the cooling water in the water tank 20 is lower than the support roller row 30 and above the receiving position C of the cooling transfer conveyor 40. By performing an extrusion molding operation as L, extrusion is performed in the air and supported by the support roller train 30 in the air. After air-cooling to a predetermined temperature in this state, the swinging transfer mechanism 50 is driven and transferred to the holding bracket 44 at the receiving position C located in the water of the cooling transfer conveyor 40, so that the extruded material 1 is submerged. It will be water-cooled and can be water-cooled after extrusion in the air. After water cooling, it is transferred by driving of the cooling transfer conveyor 40 and is transferred and carried out on the carry-out roller array 60 by the rotary transfer mechanism 70.
[0038]
Further, the cooling water is drained from the water tank 20 to make it empty, or the water level is lower than the receiving position C of the cooling transfer conveyor 40. By performing extrusion molding as L, all steps after extrusion are performed in the air, and air cooling can be performed after air extrusion.
[0039]
【The invention's effect】
As described above, according to the extrusion material cooling facility in the extrusion press apparatus according to the present invention, the transfer means is located at the transfer position below the support means. Since the cooling transfer means transfers the cooling water while being transferred to the holding member of the cooling transfer means, the cooling water level is set between the support means and the transfer position to the holding member below the support means. As a result, cooling in water is possible after extrusion in the air. Therefore, by changing the water level in the cooling water tank, it can be flexibly adapted to any cooling process of underwater extrusion, underwater extrusion after water extrusion or underwater extrusion after air extrusion, and suitable for various extrusion materials. Cooling from the temperature is possible, and a high-quality product with stable mechanical properties can be obtained.
[Brief description of the drawings]
FIG. 1 is a plan view showing a conceptual configuration of an embodiment of a cooling facility for extruded material in an extrusion press apparatus according to the present invention.
FIG. 2 is an enlarged plan view of a part A in FIG.
3 is a cross-sectional view corresponding to a BB cross section of FIG.
FIG. 4 is a cross-sectional view showing an example of a conventional configuration of an extruded material cooling facility.
[Explanation of symbols]
1 Extruded material 10 Extrusion press device 20 Water tank (cooling water tank)
30 Support roller train (support means)
31 Roller (roller member)
40 Cooling transfer conveyor (cooling transfer means)
44 Holding bracket (holding member)
50 Oscillating transfer mechanism (transfer means)
60 Unloading roller train (unloading means)
70-time transfer mechanism

Claims (4)

In the forward direction of extrusion of the extruded material by the extrusion press device, a cooling water tank having a predetermined depth is provided with the highest water level as a predetermined amount above the extruded material extrusion position from the extrusion press device, and in the cooling water water tank,
Support means for supporting the extruded material at the extruded material extrusion position ;
A cooling transfer means for holding the extruded material at a transfer position below the support means and receiving the extruded material to transfer the inside of the cooling water tank;
Transfer means for transferring the extruded material supported by the support means to the holding member at a transfer position of the cooling transfer means;
A carry-out transfer means for transferring the extruded material held by the holding member of the cooling transfer means and transferred to a predetermined position to a carry-out means provided outside the cooling water tank is provided with a rotating carry-out arm and its tip An apparatus for cooling extruded material in an extrusion press apparatus, comprising a swingable holding member capable of maintaining the posture of the holding surface even by rotation. The said transfer means is comprised so that the said extrusion means may be transferred to the holding member in which the said support means inclines to the said cooling transfer means side in the said transfer position, It is characterized by the above-mentioned. The extrusion material cooling equipment in the extrusion press apparatus according to 1. The unloading / transferring means includes sprockets having the same number of teeth at a rotation center of the unloading arm and a swing center of the holding member, and a chain is wound around the sprockets. Item 3. A facility for cooling an extruded material in the extrusion press apparatus according to Item 1 or 2. The cooling transfer means is configured so that the holding member moves obliquely from a transfer position below the support means to a carry-out position above the highest water level. Equipment for cooling extruded material in the extrusion press apparatus according to 2 or 3.

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