TWI473679B - Runner crushing device - Google Patents

Description

Sprue crushing device

The present invention relates to a runner crushing device for a casting sprue formed when casting a casting.

In the past, when casting a casting, the molten metal was flowed into the casting mold from the gate through a runner communicating with the casting mold. When the casting was completed, the runner was separated from the casting, and the separated runner was remelted by the electric furnace to be reused. .

The separate runners have a complicated bifurcation shape. Therefore, when the shape is directly put into the electric furnace, the separation runners may overlap or be twisted together to cause an increase in the overall capacity, so that the electric furnace cannot be fully filled. The amount of capacity inside causes a decrease in the input yield. In addition, when a large runner is directly melted according to its original shape in an electric furnace, it takes a long time and a large amount of electric power to completely melt, resulting in melting and recovery efficiency of the runner. Getting worse.

Therefore, before the electric furnace is put into the furnace, the casting is crushed in advance by the runner to eliminate the complicated bifurcation shape, and the large sprue needs to be crushed into small pieces, so that the crushing device using the oil pressure is used.

The crushing device is composed of a blade, a working blade and a hydraulic device for driving the operating blade, and a complicated shape or a large runner is put between the two blades, and the crusher is pressed by the two blades (for example, reference) Patent Document 1).

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 8-205

In recent years, in order to increase the strength, a metal material having a viscosity is used to form a casting, so that a highly viscous runner is formed. Therefore, in the crushing apparatus used in the past, there is a fear that the viscous runner cannot be cut and crushed into a sufficient size. In addition, since a small number of various finished products are manufactured, the types of castings are also small and varied, and the amount of the sprue discharged after the casting is formed tends to increase. Therefore, it is desirable to have a large amount of disposables. A crushing crushing device, but in the conventional crushing device, there is a disadvantage that it is impossible to energy-saving and efficiently crush a large number of runners at a time, and the runner is made of a metal material having viscosity for the purpose of improving strength. form.

In addition, in the conventional crushing device, the runner which is crushed by the blade and the operating blade is often attached to the blade body. Therefore, even after the crushing, the blade and the blade are separated. It is still difficult to recover the sprue that is crushed finely, and the shape of the blade and the blade to be cut is a simple shearing scissors shape or a blade shape having a mountain shape, so it may not be completely cut. Broken sprues, it is difficult to obtain the shortcomings of the fine runners that are suitable for melting in electric furnaces.

Moreover, the device for the sprue can be crushed in a large amount at a time, and the size of the sprue is increased. Therefore, there is a disadvantage that a large installation space is required in the setting of the crushing device, and the structure is complicated, so There is a disadvantage that it takes time or labor to perform maintenance (maintenance) of the crushing device.

Here, the present invention provides a sprue crushing device characterized in that the upper end is accommodated at a certain interval in the crushing casing as the operating edge of the pivotal portion and the lower end as the pivoting portion; and, the initial operation of the crushing operation The blade and the operating blade are arranged in a substantially V-shape in a side view, and the operating blade is configured to pass through the pressing mechanism and to move in a direction in which the blade is engaged with the pivoting portion at the lower end.

Moreover, it is characterized in that the stopper portion is disposed at a position rearward of the back surface of the blade, and functions to carry the blade when the operating blade is engaged with the blade.

Further, the blade is composed of a plurality of plate-shaped longitudinal blades having a predetermined height and a plurality of plate-shaped lateral blades arranged substantially orthogonal to the plate-like longitudinal blade; the operating blade system A plurality of operating blades having a predetermined height and a cross-shaped shape are provided in parallel, and each of the operating blade systems is configured to be freely engageable in a blade space portion formed by the longitudinal receiving blade and the lateral receiving blade in the receiving blade.

Further, the plurality of operating blades are operated by supplying a predetermined hydraulic pressure to each of the hydraulic cylinders that are connected from the same hydraulic pressure source and connected to the hydraulic pressure path and constitute the same hydraulic pressure path. The actuating blade is actuated separately from the reaction force from the crushed runner, and the predetermined hydraulic pressure is divided into the original pressure generated by the same hydraulic source at the same ratio.

According to the invention of claim 1, in the crushing casing, the upper end is accommodated at a certain interval, and the upper end is used as the operating edge of the pivotal portion of the pivotal portion; and the initial stage of the crushing operation is configured to The blade and the operating blade are arranged in a substantially V-shape in a side view; the operating blade is configured to pass through the pressing mechanism and actuate in a direction in which the pivoting portion at the lower end is engaged with the blade, so that it can be substantially V from the side view. The upper part of the space of the font is fully invested in the sprue to be crushed in order, and the volume of the space which is substantially V-shaped in side view can be adjusted by the inclination angle when the blade is rotated, so Adjusting the angle of the side view to a substantially V shape according to the size of the runner or the number of runners can produce the most suitable crushing ability, so that the following runner can be saved in a large amount at a time and in a cost-effective manner. The crushing effect is that the sprue is formed of a complicated shape or a metal material having a viscosity in recent years in order to increase the strength, and it is also possible to provide a crushing device without occupying a place too large.

According to the invention of claim 2, the stopper portion is disposed at the rear side of the back surface of the blade, and the function of the blade is supported when the operating blade is engaged with the blade. Therefore, the operating blade can be effectively oriented toward the blade. By transmitting the pressing force supplied by the pressing mechanism, it is possible to perform crushing in a large amount more efficiently and efficiently at a time.

According to the invention of claim 3, the blade is composed of a plurality of plate-like longitudinal blades having a predetermined height and a plurality of plate-shaped lateral blades arranged to be substantially orthogonal to the plate-like longitudinal blade. The actuating blade system is formed by arranging a plurality of operating blades having a cross shape of a predetermined height, and each of the actuating blade systems is configured to be freely insertable into a blade space formed by the longitudinal and lateral blades in the blade. Therefore, even in a runner formed of a complex shape or a metal material having viscosity in order to increase the strength in recent years, it is possible to perform fine crushing by the cross-blade moving blade unit, and Since the blade and the lateral blade are plate-shaped, the runner which is finely crushed does not adhere to the blade, and only the blade having the intersecting shape of the blade is fitted into the blade edge space portion, so that it is small. Since the crushed runner does not adhere to the operating blade, in addition to the effect of more efficient and efficient one-time large-scale sprue recovery after fine crushing, the blade and the operating blade are arranged. Side view is large The V-shape is formed, so that the slope of the two blades after the pressing is not applied, so that the runner which is finely crushed does not adhere to the two blades, and the volume of the space which is substantially V-shaped in side view, The adjustment can be performed by the inclination angle when the blade is rotated. Therefore, by adjusting the angle of the side view to be substantially V-shaped according to the size of the runner or the number of runners, the optimum crushing ability can be generated, so By the multiplication effect of the effect of the shape of the two blades, the effect of crushing in a large amount can be performed more efficiently and efficiently, and the sprue recovery after fine crushing can be efficiently performed. The effect.

According to the invention of claim 4, the plurality of actuating blades are actuated by supplying a predetermined hydraulic pressure to each of the hydraulic cylinders connected from the same hydraulic source by the hydraulic path and constituting the same hydraulic pressure path. At this time, each of the operating blades is separately actuated according to the reaction force from the crushed runner, and the predetermined hydraulic pressure is divided into the original pressure generated by the same hydraulic source at the same ratio, so Even in a complicated shape or in recent years, in order to increase the strength, a runner formed of a metal material having a viscosity is complicatedly placed across a space in which the side view is substantially V-shaped, and the runner is borrowed. Since the unilateral blade is used as a fulcrum to cut and crush by the pressing force from the other side of the blade, the effect of crushing the runner in a large amount can be performed more efficiently and efficiently.

In the present invention, the upper end is accommodated at a predetermined interval in the crushing casing as the operating edge of the pivotal portion and the lower end as the pivoting portion; and the initial stage of the crushing operation is such that the blade and the operating blade are substantially V in side view. The arrangement of the fonts is configured such that the operating blade is configured to move in the direction of engagement with the blade centering on the pivoting portion at the lower end through the pressing mechanism.

Further, a stopper portion is disposed at a position rearward of the back surface of the blade, and functions to exert a load receiving blade when the operating blade is engaged with the blade.

Further, the blade is composed of a plurality of plate-like longitudinal blades having a predetermined height and a plurality of plate-shaped lateral blades arranged substantially orthogonal to the plate-like longitudinal blade; the operating blade system has a plurality of predetermined The movable cutting blades of the height of the cross shape are arranged in parallel, and each of the operating blade systems is configured to be freely insertable into the blade space portion formed by the longitudinal receiving blade and the lateral receiving blade in the receiving blade.

Further, the plurality of actuating blades are connected to the same hydraulic pressure source by a hydraulic pressure path, and are supplied to each of the hydraulic cylinders constituting the same hydraulic path to supply a predetermined hydraulic pressure, and at this time, each of the operating blades is adapted to The reaction force from the crushed runner is separately actuated, and the predetermined hydraulic pressure is divided into the original pressure generated by the same hydraulic source in the same ratio.

[Examples]

Hereinafter, an embodiment of the runner crushing apparatus G of the present embodiment will be specifically described with reference to the drawings.

As shown in Fig. 1 and Fig. 10(c), the sprue crushing device G of the present embodiment is blocked by the blade portion 1 and the movable blade portion 3 housed in the crushing casing M. The stopper portion 7 on the back surface of the blade 10 and the base portion 9 provided on the lower portion of the crushing casing M are formed, and the runner Y is inserted into the space Z which is substantially V-shaped in side view, and is reduced by two. The edge of the blade is used to crush the runner Y, and then the blade 10 is separated from the blade 30 and taken out from the space of the space, that is, the recovery space X formed under the same crushing housing M, wherein The space Z is constructed between the blade 10 and the operating blade 30 built into the same crushing housing M.

As shown in Fig. 1, Fig. 2, and Fig. 4, the crushing casing M is composed of a left side wall ML, a right side wall MR, a top plate MU, and a rear wall MB, and the front side and the receiving edge 10 of the receiving blade 10 are provided. The lower portion between the blade and the blade 30 is formed in an open box shape, and the blade 10 and the blade 30 are housed in the same crushing housing M.

As shown in Fig. 1 and Fig. 2, the left and right side walls ML of the crushing casing M and the upper portion of the upper portion of the MR are pivotally supported by the blade pivoting portion 15 so as to be pivotally supported by the blade 10, and the left and right side walls ML and MR are lower. The working blade 30 is rotatably pivoted by the operating blade pivot portion 35, and the operating blade driving portion 40 for actuating the operating blade portion 3 is connected to the back surface of the operating blade 30, and the top plate MU of the crushing housing M is attached. An input port 50 is provided which is located above the blade 10 and the operating blade 30 for inputting the runner Y for the casting. Further, in order to efficiently input the runner Y on the periphery of the same inlet port 50, the inlet port guide body 51 is erected so as to be flared upward.

As shown in FIG. 1, FIG. 2, FIG. 4, and FIG. 6, the blade receiving portion 1 is composed of a blade 10, a blade pivot portion 15, a blade drive portion 20, and a blade rotation stopper 71. Wherein the blade pivot portion 15 pivots the upper end of the same blade 10 to the upper portion of the crushing housing M, and the blade driving portion 20 is attached to the back surface of the blade 10 for driving the same blade 10, and the blade The rotation stopper 71 is disposed at a position rearward of the back surface of the blade 10.

As shown in FIG. 1, FIG. 2, and FIG. 4, the upper end of the blade 10 is pivotally supported by the blade pivot portion 15 and is supported by the left and right side walls ML of the crushing housing M, the front upper end portion of the MR, and the symbol 15a. For the blade pivot shaft provided on the upper portion of the blade 10, the blade 16 is a blade pivot shaft support provided at both ends of the same blade pivot shaft 15a.

The left and right side walls ML of the crushing casing M, and the blade driven portion 20 of the MR are shown by the first, second, and fourth figures, and are the left and right side walls ML, MR of the operating bracket 21 and the crushing casing M. The blade hydraulic cylinder 22 at the lower center portion and the blade hydraulic cylinder connecting member 23 provided between the operation bracket 21 and the blade hydraulic cylinder 22, wherein the operation bracket 21 is connected to the blade The axial end of the pivot shaft 15a.

Thereby, the blade drive unit 20 transmits the right and left operation of the blade hydraulic cylinder 22 to the rotation operation of the blade pivot shaft 15a through the left and right operation brackets 21, so that the blade 10 can be subjected to the blade pivot. The support shaft 15a is centered and rotates toward the front of the crushing housing M.

In this manner, the blade 10 is rotated toward the front of the crushing casing M around the blade pivot portion 15, and a predetermined interval is formed between the blade 10 and the operating blade 30, and the accumulated space is accumulated in the blade space portion S. The track Y is naturally discharged from the space below the crushing casing M, and is discharged by a predetermined means such as a conveyor belt or a recovery box.

As shown in Fig. 4, Fig. 6, and Fig. 8, the blade 10 is formed in a lattice shape by the longitudinal blade 11 and the lateral blade 12, and the longitudinal blade 11 is formed of a plurality of vertically long plates. The longitudinally-shaded blade unit 11c is formed, and the lateral blade 12 is composed of a plurality of laterally-shaded single-blade units 12c.

As shown in Figs. 4 and 6, the longitudinally-accepting blade 11 is configured by fixing a longitudinally long plate-like shape 1 to a plurality of longitudinally-shaded single-pieces 11c formed in a side wall shape and an intermediate side wall shape.

Further, as shown in Figs. 4 and 6, the laterally-accepting blade 12 is configured such that one of the horizontally long plate-like shapes and the plurality of (here, eight) horizontally-shaded single-edged blocks 12c are substantially positive. In the state of being intersected, they are disposed on the respective longitudinal blade receiving members 11c at regular intervals.

Thereby, a plurality of substantially rectangular blade space portions S are formed by the arrangement of the plurality of longitudinally-sharpened blades 11c and the plurality of laterally-sharpened blades 12c, and are in the same blade space portion S. Each of the operating blade units 30s (which will be described later) is embedded in the crushing operation.

Further, when the longitudinal blade receiving unit 11c and the lateral blade receiving unit 12c are disposed, as shown in Figs. 6 and 8 , the upper end portion of the longitudinal blade receiving unit 11c is configured to be higher. The height difference (step difference) is set in such a manner that the upper end portion of the lateral blade receiving unit 12c is lower, but it can also be constructed with the opposite height difference.

Thereby, even if the runner Y formed of a complicated shape or a metal material having a viscosity can be pressed by pressing the operating blade 30 by the effect of the shape of the blade 10 having the height difference When broken, the runner Y is crushed easily and efficiently.

Further, as shown in FIGS. 6 and 8, the longitudinal blade 11 and the upper end of the lateral blade 12 are formed in a plate shape, so that the crushed runner Y does not easily adhere to the blade 10. On the other hand, it is possible to efficiently perform the crushing effect in a large amount at one time, and to efficiently recover the effect of the sprue Y which is finely crushed.

The longitudinal receiving blade 11 is formed at an end portion of each of the longitudinal blade receiving members 11c, and is constituted by a longitudinal blade receiving body 11a and a longitudinal blade receiving attachment 11b. The lateral receiving blade 12 is also attached to the front end of each of the lateral blade receiving members 12c. The portion is constituted by the laterally-acceptable blade body 12a and the lateral blade-attached attachment 12b, thereby forming a detachable structure.

That is, as shown in Figs. 6 and 8, the longitudinally-acceptable blade attachment 11b and the lateral blade-attached attachment 12b are detachably constructed, and the longitudinal blade attachment 11b and the lateral direction are obtained by bolts J or the like. The blade attachment 12b is fixed in the threaded hole formed in the longitudinal blade body 11a and the lateral blade body 12a. Therefore, when the runner is crushed, the longitudinal blade attachment 11b and the lateral blade attachment 12b, When worn or damaged, the longitudinal blade attachment 11b and the lateral blade attachment 12b can be exchanged, so that the maintenance of the runner crushing device G can be easily performed.

Further, by matching the shape of the crushed runner Y or the type of material used, the longitudinal blade attachment 11b and the lateral blade attachment 12b are made and exchanged in an optimum material and an optimum shape, even in the complex In the shape of the runner or the metal material having the viscosity, the runner Y can not only crush the runner Y more efficiently, but also finely correspond to the crushing of the various runners Y. .

As shown in FIG. 1, FIG. 2, and FIG. 3, the stopper portion 7 is disposed at a position behind the back surface of the blade 10, and is detachable from the base 9, and is played when the blade 30 is engaged with the blade 10. Carrying the function of the blade, each of the two ends of the front portion of the base 9 is provided with a stopper piece 72 for stopping the rotation of the blade 10 when the runner is crushed.

That is, as shown in Fig. 1, Fig. 2, and Fig. 3, the stopper portion 7 for stopping the rotation of the blade 10 when the runner is crushed is provided with a lifting cylinder 73a at the lower portion thereof. The stopper piece 72 is provided at the front end, and is configured such that the stopper piece 72 can be freely moved by the action of the lift cylinder 73a.

When the movable blade 30 is crushed by the runner Y, the lower end of the movable blade pivot portion 35 is moved toward the direction in which the blade 10 is engaged. When the interval between the two blades is reduced, the stopper piece 72 is lifted by the lift cylinder 73a. And protruding upwards to resist the back surface of the blade 10 when the runner is crushed to stop the rotation of the blade 10.

After the runner Y is crushed, the stopper piece 72 is lowered, and the same stopper piece 72 is housed in the lift cylinder case 73b, whereby the stopper portion 7 is released from the blade 10, and the blade 10 is received. Rotating toward the front of the crushing housing M forms a certain interval with the operating blade 30.

Thereby, the crushed runner accumulated in the blade space portion S between the blade 10 and the operating blade 30 is opened by the same blade 10 toward the front of the crushing casing M, so that the same blade 10 is opened downward. It is inclined downward in the downward direction, and is naturally dropped downward and discharged, and is recovered by a predetermined means such as a conveyor belt or a recycling box disposed below it.

As shown in Fig. 1, Fig. 2, Fig. 5, and Fig. 7, the operating blade portion 3 is composed of a working blade 30, a movable blade pivot portion 35, and an operating blade driving portion 40, wherein the operating blade pivot portion 35 is The lower end of the same operating blade 30 is pivotally supported by the lower portion of the crushing housing M, and the movable blade driving portion 40 is attached to the back surface of the operating blade 30 for driving the same operating blade 30.

As shown in FIG. 2, FIG. 5, FIG. 7 and FIG. 9, the lower end of the operating blade 30 is pivotally supported by the left and right side walls ML of the crushing housing M through the movable blade pivot portion 35, and the lower end portion of the center of the MR Reference numeral 35a denotes an operating blade pivot shaft provided at an lower end portion of each of the operating blades 30, and 36 is a movable blade pivot shaft supporting body provided at both ends of the same operating blade pivot shaft 35a.

Further, as shown in FIG. 1, FIG. 2, and FIG. 3, the operating blade 30 is configured such that the blade 10 and the same operating blade 30 are arranged in a substantially V-shape in a side view at the initial stage of the crushing operation. Further, the same operating blade 30 is configured to move in the direction of engagement with the same receiving blade 30 centering on the movable blade pivot portion 35 by pressing the hydraulic mechanism, and the operating blade 30 is composed of the left operating blade group 30L and the right operating blade. The group 30R is composed.

As shown in FIGS. 1 and 2, the operating blade driving unit 40 disposed on the wall MB of the crushing casing M is composed of a pressing mechanism connecting member 33, left and right operating blade hydraulic cylinders 41L, 41R, and pressed. The mechanism connecting member 33 is formed by the left and right movable blade hydraulic cylinder connecting members 42 provided between the left and right movable blade hydraulic cylinders 41L and 41R, and constitutes a pressing mechanism together with the same hydraulic source H or oil passage 45 to be described later. .

Thereby, the movable blade drive unit 40 converts the expansion and contraction operation of the left and right movable blade hydraulic cylinders 41L, 41R into the movable blade pivot shaft by the transmission pressing mechanism coupling member 33 and the left and right movable blade hydraulic cylinder coupling members 42. The rotation operation of 35a causes the left operation blade group 30L and the right operation blade group 30R to be rotatable in the direction in which the blade 10 is engaged with the blade edge support shaft 35a.

In this way, the right and left blade hydraulic cylinders 41L, 41R are transmitted through the right and left blade hydraulic cylinder connecting members 42 and the pressing mechanism connecting member 33, and the movable blade pivot shaft 35a is used as a fulcrum to make the left operating blade group 30L. When the right operating blade group 30R is rotated, a connection point (force point) from the same operating blade pivot shaft 35a (the fulcrum) to the left operating blade group 30L and the right operating blade group 30R and the left and right operating blade hydraulic cylinders 41L, 41R is formed. The distance, so, in the side view, the point (action point) of the crushing runner Y is placed at the center, and the fulcrum and the force point become the outer side, whereby the principle can be used to generate a large pressing force from a small oil pressure. Therefore, the runner Y can be crushed energy-saving and efficiently.

As shown in Fig. 12, the oil passage 45 which is divided into two forks is connected to the oil outlet of the same hydraulic source H, and the oil passage 45L on one side is connected to the left-acting blade hydraulic cylinder 41L, and the oil on the other side. The road 45R is connected to the right operating blade hydraulic cylinder 41R, and each of the oil passages 45L, 45R is formed to have the same diameter and the same length so that the original pressure P from the same hydraulic source H is divided into pressures of the same ratio. Thereby, the left hydraulic pressure path KL and the right hydraulic pressure path KR are composed of the oil passages 45L and 45R which are divided into two forks, and the respective left and right operating blade hydraulic cylinders 41L and 41R.

As shown in Fig. 1, the left actuating blade group 30L and the right actuating blade group 30R are equally arranged to the left and right, and a left actuating blade hydraulic cylinder 41L and a right actuating blade oil pressure are respectively disposed on the back surface of the same operating blade 30. In the cylinder 41R, the reaction force (hereinafter referred to as the reaction force) transmitted by the pressing force generated by the oil pressure of the same operating blade hydraulic cylinders 41L, 41R from the left and right blades is transmitted through the crushing runner Y. The left actuating blade group 30L and the right actuating blade group 30R are respectively operated to have a timing difference.

Thereby, when the left operating blade group 30L and the right operating blade group 30R engaged with the blade 10 are operated by time difference, the runner Y can be given a complicated pressing force according to the shape of the same blade 10 and the same blade 30. Therefore, not only can the sprue Y be crushed efficiently and efficiently, but also the point where the moving blade 30 is in contact with the runner Y as a fulcrum and the other blade 30 can be poured according to the shape of the runner Y. The point where the road Y contacts is used as the force point, and the point where the runner Y is broken is taken as the action point. Here, according to the principle, the runner Y can be given a large pressing force from a small oil pressure, so that it can be further It is energy-saving and efficient to crush the runner Y in large quantities at one time.

Further, although a plurality of operating blades (here, one for each of the right and left, and a total of two) are described, the sprue crushing operation is described, but a plurality of operating blades (not shown) may be arranged to constitute the sprue pressure. The crushing device imparts a more complicated pressing force to the runner Y, so that the runner Y can be crushed in a large amount at a time with further energy saving and efficiency.

Further, in the present embodiment, the left actuating blade group 30L and the right actuating blade group 30R are respectively connected to the left actuating blade hydraulic cylinder 41L and the right actuating blade hydraulic cylinder 41R, and can be operated separately, but are not required. In the case of an effective crushing force, each of the left operating blade group 30L and the right operating blade group 30R may be integrally coupled by a connecting member (not shown) so that the left and right left operating blade groups 30L and right are actuated. The blade group 30R rotates integrally.

As a result, when the left operating blade group 30L and the right operating blade group 30R are integrally rotated as described above, the configuration of the operating blade hydraulic cylinders 41L, 41R can be made single, so that the pressure can be further reduced. The cost of manufacturing the crushing device.

As shown in FIGS. 5, 7, and 9, the operating blade 30 is composed of a longitudinal operating blade 31, a lateral operating blade 32, and a pressing mechanism coupling member 33.

As shown in Fig. 7, the longitudinal operating blade 31 is configured to arrange a plurality of longitudinally movable blade members 31c of a longitudinally long plate shape to have a predetermined height difference (step difference) and to constitute the same longitudinal operating blade unit 31c. The longitudinal operating blade main body 31a is formed in an integral shape.

That is, the movable blade for the longitudinal lateral monomers described later are connected with the longitudinal edges 31c the actuator 32 is high as monomers movable blade 31 'c is formed at a height, located below the lower longitudinal edge of the actuating monomer 31 "c is formed in the low At the same time, the longitudinally operating blade unit 31c having the step is formed in a staggered manner.

Laterally movable blade 32 for the horizontal lines of a plurality of laterally elongated plate-shaped blade actuators 32c disposed at a height higher monomers of the high longitudinal edges monomer actuator 31 'is substantially the center of the left and right of C, as shown in FIG. 5 and 7, and at a higher height for high longitudinal monomers movable blade 31 'c as the lateral view of the movable blade monomers 32c arranged substantially cruciform manner as before, be fitted to the blade configuration of the space portion S of the movable blade monomer 30s.

Further, as shown in Fig. 13, the lateral operating blade 32 is integrally formed as a taper which is thinned in thickness from the base toward the front end, and is formed as a taper which is thinned at the front end as the moving blade 30 is inclined downward. There is an effect that it is easy to slide the crushed runner between the blade and the blade 10 and slide down downward.

As described above, the use of higher height to the actuator longitudinal edges high monomer 31 'c as the lateral view of the movable blade monomers 32c arranged substantially cruciform manner as before, be fitted to the blade configuration of the space portion S of the movable blade monomers 30s, Even if the runner is formed of a complicated shape or a metal material having a viscosity, it is possible to impart a complicated pressing force in a plurality of directions to the runner Y of the crushing object while performing the crushing operation of the runner Y. Fine cutting and crushing are performed, so that the runner can be crushed more easily when pressed and crushed, and crushing can be performed more efficiently.

Further, when the operating blade 30 is actuated in the direction of the engagement with the same receiving blade 30 by the pressing mechanism and the lower end of the operating blade pivot portion 35, the lower longitudinal operating blade unit 31 " c " The blade edge receiving member 12c is in contact with the lateral direction, but the blade member 30s is fitted into the blade space portion S of the blade 12. Therefore, the runner Y after the crushing does not adhere to the blade, and the crushing can be effectively performed.

The longitudinal operating blade 31 is formed at a front end of the longitudinal operating blade unit 31c, and is composed of a longitudinal operating blade body 31a and a longitudinal operating blade attachment 31b. The lateral operating blade 32 is also attached to the front end of each lateral operating blade unit 32c. It is composed of a laterally acting blade body 32a and a lateral blade attachment 32b, thereby forming a detachable structure.

That is, as shown in FIGS. 7 and 9, the longitudinally movable blade attachment 31b and the laterally movable blade attachment 32b are detachably and freely constructed, and the longitudinally movable blade attachment 31b and the lateral direction are formed by bolts J or the like. The movable blade attachment 32b is fixed in the threaded hole formed in the longitudinal operating blade body 31a and the lateral operating blade body 32a. Therefore, when the runner is crushed, the longitudinal operating blade attachment 31b and the lateral movable blade attachment 32b, When worn or damaged, the longitudinal blade attachment 31b and the lateral blade attachment 32b can be exchanged, so that the maintenance of the runner crushing device G can be easily performed.

Further, by matching the shape of the crushed runner Y or the type of the material to be used, the longitudinal operating blade attachment 31b and the lateral movable blade attachment 32b are made and exchanged with the most appropriate material and the most appropriate shape, even if The runner Y formed of a complicated shape or a metal material having a viscosity can not only crush the runner Y more efficiently, but also finely correspond to the pressure of a plurality of runners Y when pressed and crushed. broken.

Further, as shown in FIGS. 7 and 9, the longitudinal blade attachment 31b and the lateral blade attachment 32b are formed in a substantially triangular column shape, and the crushed runner Y is not easily attached to the blade 30. On the other hand, there is an effect of efficiently crushing the runner Y, and there is an effect of efficiently recovering the sprue which is finely crushed.

Further, the lateral movable blade attachment 32b connected to the front end of the lateral movable blade main body 32a and the longitudinal movable blade attachment 31b connected to the front end of the longitudinal movable blade main body 31a are as described above, and can be detachably mounted by the bolt J. In addition, the longitudinal operating blade attachment 31b and the lateral operating blade attachment 32b can be formed by welding thick-walled superhard alloys at the front end portions of the longitudinal movable blade body 31a and the lateral movable blade body 32a, in the longitudinal and lateral directions. When the blade attachments 31b and 32b are worn, they can be repaired by thicker welding.

As shown in Fig. 1, a recovery space X is provided below the crushing casing M.

After the runner is crushed, the stopper plates 72 are lowered, and the same stopper piece 72 is housed in each of the lift cylinder casings 73b, thereby releasing the stopper portion 7 from the blade 10 and making the same blade. 10 is rotated in front of the crushing housing M to form a certain interval with the operating blade 30.

Thereby, the crushed runner Y accumulated in the blade space portion S between the blade 10 and the operating blade 30 is rotated toward the front of the crushing casing M by the same blade 10, so that the same blade 10 is opened downward. It is inclined downward in the downward direction, and is naturally dropped and discharged to the recovery space X, and is recovered by a predetermined means such as a conveyor belt or a recovery box disposed in the recovery space X.

Further, in the above-described embodiment, the blade 10 is a blade space portion S in the left and right rows in the lateral direction, and the blade 30 is a movable blade unit 30s in the left and right rows, and the blade 10 is provided in the vertical direction. In the three-stage blade space portion S, the movable blade 30 is a three-stage moving blade unit 30s, but the configuration is not limited to the two-column three-stage configuration, and may be two or more in the horizontal direction and three or more in the vertical direction. The composition of the sprue crushing treatment can be performed in a large amount. In this configuration, the operating blade hydraulic cylinders are also connected to the respective rows of the operating blades 30, and are operated by the time difference.

Hereinafter, the crushing operation in the case where the runner Y is crushed in the runner crushing device G of the present embodiment will be specifically described with reference to the drawings.

The outline of the crushing operation is made in the runner crushing device G such that the lower end portion of the operating blade 30 and the lower end portion of the receiving blade 10 are in contact with each other, and a side view is formed between the same operating blade 30 and the same receiving blade 10. The substantially V-shaped space Z is placed in the same space Z which is substantially V-shaped in side view from the input port 50, and the runner Y is placed at each position, and is stopped by the same oil source H The pressures of the respective pressures PL and PR of the partial pressure are supplied to the same operating blade 30. Therefore, the same operating blade 30 presses the runner Y by the pressing force, and the same blade 10 and the same blade 10 are used in response to the same. The strength of the reaction force of the gate runner Y is separately actuated, whereby the runner Y is pressed against the same blade 10 and crushed.

As shown in Fig. 10(a), as described above, the runner crushing device G has a configuration in which the operating blade 30 and the receiving blade 10 are formed, and the same receiving blade 10 is stopped at a position away from the same operating blade 30.

The blade 10 and the operating blade 30 are subjected to a state other than the crushing operation, that is, in a state where the crushing operation is performed and the crushed runner Y is discharged, the blade 10 is subjected to the blade pivot portion of the upper portion. 15 is rotated toward the front of the crushing housing M, and the movable blade 30 is also rotated toward the rear of the crushing housing M at the lower portion of the movable blade pivot portion 35, and is formed between the same receiving blade 10 and the same operating blade 30. The space of a certain interval is such that the lower portion of the same crushing casing M that can be discharged from the crushed sprue Y from below the crushing casing M is opened.

As shown in Fig. 10(b), when the preparation for the crushing operation is started, the blade pivot portion 15 of the upper portion of the blade 10 is rotated toward the center of the crushing casing M, and the movable blade 30 is operated below. The blade pivot portion 35 is rotated centrally toward the center of the crushing casing M. At the initial stage of the crushing operation, the two blades are arranged in a substantially V-shape in a side view. Of course, when the blade 10 is rotated, the blades are disposed behind the back surface. As shown in Fig. 10(a), the stopper piece 72 is lowered by the respective lift cylinders 73a, and is configured so as not to interfere with the blade 10, that is, without obstructing the blade turning operation.

Then, in this state, when the two blades are displaced and become substantially V-shaped in side view, the initial state of the crushing operation is obtained. Each of the stopper pieces 72 is raised upward by each of the lift cylinders 73a, and is disposed at a predetermined position to prevent the blade turning stopper 71 connected to the blade 10 from being prepared.

As shown in Fig. 10(c), when the runner is thrown into the Y from the input port 50 above the crushing casing M in this state, the runner Y is thrown into the state in which the inclination or the horizontal state is disorderly. Between the longitudinal operating blades 31 and the lateral operating blades 32 of each of the longitudinal receiving blades 11 and the lateral receiving blades 12 of the blade 10 and the left and right left operating blade groups 30L and the right operating blade group 30R are accommodated. The state in the space Z which is substantially V-shaped in side view is completed, thereby completing the preparation operation of crushing.

Further, the volume of the space Z which is substantially V-shaped in side view can be adjusted by the inclination angle when the blade 10 is rotated. That is, by making the side view substantially V-shaped according to the size of the runner or the number of runners, an optimum crushing ability can be produced to form a side view which is substantially V-shaped. The same space Z.

Then, as described above, when the runner Y is accommodated in the space Z which is substantially V-shaped in the side view between the blade 10 and the operating blade 30, the pivoting edge portion 35 of the lower portion of the operating blade 30 is centered toward the runner The direction, that is, the direction of the blade. When the rotation of the blade 30 is continued, if the pressing force is applied to the runner Y at a constant pressure and the pressing force becomes a force that cannot be carried by the blade 10, the upper edge of the blade 10 is centered on the blade pivot portion 15 Rotate continuously toward the front of the crushing housing M.

At this time, as shown in Fig. 12, the oil passage 45 which is divided into two forks is connected to the oil outlet of the same hydraulic source H, and the oil passage 45L on one side is connected to the left-acting blade hydraulic cylinder 41L, and The oil passage 45R on one side is connected to the right actuating blade hydraulic cylinder 41R, and the oil passages 45L and 45R which are divided into two forks are formed to have the same diameter and the same length so that the original pressure from the same oil pressure source H P is divided into pressures of the same ratio. Thereby, the left hydraulic pressure path KL and the right hydraulic pressure path KR are composed of the left and right oil passages 45L, 45R divided into two forks, and the left and right operating blade hydraulic cylinders 41L, 41R, and The movable blade group 30L and the right operating blade group 30R are respectively connected to the respective operating blade hydraulic cylinder connecting members 42 via the pressing mechanism connecting member 33, and the left operating blade hydraulic cylinder 41L and the right operating blade hydraulic cylinder 41R.

Further, the operating blade hydraulic cylinder 41L and the operating blade hydraulic cylinder 41R are constituted by a double acting hydraulic cylinder, or may be constituted by a double acting hydraulic cylinder, and can output both forces during expansion and contraction. Therefore, even when the number of times of use of the crushing device is large or the weight of the operating blade 30 is firmly formed, the weight can be sufficiently matched.

The left hydraulic pressure path KL and the right hydraulic pressure path KR are formed to have the same diameter and the same length, so that the original pressure P from the same hydraulic source H is separately divided into pressures of the same ratio, so the left operating blade group The 30L and the right operating blade group 30R are pressed in the direction in which they are engaged with the blade 10 by the respective pressures PL and PR which are divided by the same hydraulic source H, in a state in which the runner Y is sandwiched. The reaction force of the same blade 10 is transmitted through the runner Y as a reaction force FL, FR acting from the runner Y to the left operating blade group 30L and the right operating blade group 30R.

As shown in Fig. 12(a), when the reaction force is FL = FR, the left operating blade group 30L and the right operating blade group 30R are centered on the lower blade pivoting portion 35, toward the runner, that is, The blade is rotated in such a manner that the runner Y is pressed against the blade 10, and when the rotation of the left blade set 30L and the right blade set 30R is continued, the pressing force is applied to the runner Y at a constant pressure and the When the pressing force is a force that cannot be carried by the blade 10, the blade 10 is rotated toward the front of the crushing housing M centering on the blade pivot portion 15 of the blade 10 or higher.

Further, as shown in Fig. 10(d), when the runner Y is sandwiched between the blade 10 and the left blade set 30L and the right blade set 30R, the blade hydraulic cylinder 41L and the operating blade are actuated. When the hydraulic cylinder 41R is extended, the blade 10 is pressed in a state in which the runner Y is sandwiched between the left operating blade group 30L and the right operating blade group 30R, and each of the stopper pieces 72 protrudes toward the back surface of the blade 10. The back surface of the blade 10 is blocked by the stopper piece 72 through the blade rotation stopper 71. That is, each of the stopper pieces 72 abuts against both ends of the blade rotation stopper body 71, and the blade 10 is stopped from rotating.

Thereby, the blade 10 blocks the rotational pressing force of the operating blade 30. Further, while the movable blade 30 continues to rotate, the runner Y blocked by the blade 10 is crushed between the operating blade 30 and the receiving blade 10.

At this time, as shown in Fig. 12(b), when the reaction force is FL < FR, the left operating blade group 30L is rotated by pressing the runner Y against the blade 10, and at this time, the right operating blade The group 30R can be used as a fulcrum when the runner Y is crushed without rotating.

Then, the left hydraulic pressure path KL and the right hydraulic pressure path KR are formed to have the same diameter and the same length, respectively, so that the original pressure P from the same oil pressure source H is divided into pressures of the same ratio, so when the When the force is FL < FR, until the pressing force generated by the pressure PL divided into the same pressure becomes equal to the reaction force FL, only the left operating blade group 30L is pressed in the direction of the receiving blade 10 to crush the runner Y. The way is another rotation.

Thereby, the runner Y is cut and crushed by the pressing force from the left operating blade group 30L with the right operating blade group 30R as a fulcrum, and the crushed runner Y becomes the blade space of the blade 10 continuously. The state in the section S.

As shown in Fig. 11(a), the left operating blade group 30L which receives a small reaction force from the runner Y is rotated, and the same runner Y is pressed against the longitudinal receiving blade 11 and the lateral receiving blade 12 of the receiving blade 10. .

Next, as shown in FIG. 12(c), when the reaction force is FL>FR, the right-moving blade group 30R is rotated by pressing the runner Y against the blade 10, and at this time, the left-moving blade group 30L can be used without rotating, but used as a fulcrum when crushing the runner Y.

Then, the left hydraulic pressure path KL and the right hydraulic pressure path KR are formed to have the same diameter and the same length, respectively, so that the original pressure P from the same oil pressure source H is divided into pressures of the same ratio, so when the When the force is FL>FR, the pressing force generated by the pressure PR which is divided into the same pressure becomes equal to the reaction force FR, and only the right operating blade group 30R is pressed in the direction of the receiving blade 10 to crush the runner Y. The way is another rotation.

Thereby, the runner Y is cut and crushed by the pressing force from the right operating blade group 30R with the left operating blade group 30L as a fulcrum, and the crushed runner Y becomes the blade space of the blade 10 continuously. The state in the section S.

As shown in Fig. 11(b), the right operating blade group 30R which receives a small reaction force from the runner Y is rotated, and the remaining runner Y is cut and crushed, and the runner Y is crushed. The state in which the blade portion 10 is continuously inserted into the edge portion S of the blade 10 is formed so that the tip end portions of the respective blade members 30s having the substantially cross shape of the left blade group 30L and the right blade group 30R are embedded in the blade. The state in the edge portion S of the 10 blade.

As shown in Fig. 11(c), when the movable blade hydraulic cylinder 41L and the operating blade hydraulic cylinder 41R are contracted, the left operating blade group 30L and the right operating blade group 30R are centered toward the movable blade pivot portion 35 toward the crushing shell. After the body M is rotated, the distal end portion of each of the operating blade units 30s having a substantially cross shape is separated from the state in which the blade portion 10 is inserted into the blade space portion S.

As shown in Fig. 11(d), the operating blade 30 is engaged with the blade 10, and each of the stoppers 72 of the stopper portion 7 that functions as a blade is provided when the same blade 30 is further pressed toward the same blade 10. By the contraction of each of the lift cylinders 73a, the lower lift cylinder 73a is lowered into the lift cylinder casing 73b, whereby the blade 10 is rotated about the blade pivot portion 15 and moves toward the front of the crushing casing M, and the movable blade can be moved. A certain interval is formed between 30.

As a result, the crushed runner Y accumulated in the blade space portion S of the blade 10 and the operating blade 30 is inclined in the downward direction in which the blade 10 is opened downward, and is in the blade space portion S from the same blade 10. It is naturally dropped, discharged, and recovered in the recovery space X below the crushing casing M.

In order to recover the naturally-dropped crushed runner Y in the recovery space X of the crushing runner, the runner can be more efficiently recovered by a predetermined recovery means such as a conveyor belt or a recovery tank.

The preferred embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above, and various modifications and changes can be made without departing from the spirit and scope of the invention.

G. . . Sprue crushing device

F. . . The reaction force acting on the operating blade from the blade 10 through the runner

H. . . Oil pressure source

KL. . . Left hydraulic path

KR. . . Right hydraulic path

M. . . Broken shell

P. . . Original pressure from the same oil pressure source H

S. . . Blade space

PL. . . Left pressure divided from the same oil pressure source

PR. . . Right pressure that is divided from the same oil pressure source

X. . . Recycling space

Y. . . Sprue

Z. . . space

1. . . Blade

3. . . Actuating blade

7. . . Stop

10. . . Blade

11. . . Longitudinal blade

12. . . Transverse blade

15. . . Edged branch

30. . . Blade

30L. . . Left actuating blade

30R. . . Right actuating blade

30s. . . Moving blade

31. . . Longitudinal blade

32. . . Lateral blade

35. . . Actuating blade pivot

41. . . Actuating blade hydraulic cylinder

41L. . . Left actuating blade hydraulic cylinder

41R. . . Right acting blade hydraulic cylinder

45. . . Oil road

Fig. 1 is an overall perspective view of a sprue crushing device G of the present embodiment.

Fig. 2 is a right side view of the runner crushing device G of the present embodiment.

Fig. 3 is a front view of the runner crushing device G of the present embodiment.

Fig. 4 is a plan view showing the blade of the A-A line in Fig. 2;

Fig. 5 is a plan view showing an operating blade of a cross section taken along the line B-B in Fig. 2;

Fig. 6 is a perspective view showing the blade of the sprue crushing apparatus G of the present embodiment.

Fig. 7 is a perspective view showing the operating blade of the runner crushing apparatus G of the embodiment.

Fig. 8 is a cross-sectional view showing the blade of the sprue crushing apparatus G of the present embodiment.

Fig. 9 is a cross-sectional view showing the operating blade of the runner crushing apparatus G of the embodiment.

10(a) to (d) are explanatory views showing the crushing operation of the runner in the embodiment.

11(a) to (d) are explanatory views showing the crushing and discharging operation of the runner in the embodiment.

12(a) to (c) are explanatory views showing the respective operating blades that are respectively operated by the reaction force of the present embodiment.

Fig. 13 is a perspective view showing the operating blade of the runner crushing apparatus G of the embodiment.

10. . . Blade

15. . . Edged branch

16. . . Blade support shaft support

twenty one. . . Operating bracket

twenty three. . . Blade hydraulic cylinder connecting member

30R. . . Right actuating blade

33. . . Pressing mechanism connecting member

35. . . Actuating blade pivot

41R. . . Right acting blade hydraulic cylinder

42. . . Actuating blade hydraulic cylinder connecting member

51. . . Casting guide

71. . . Blade rotation stop

72. . . Stopper

73a. . . Lifting cylinder

73b. . . Lift cylinder housing

MR. . . Right side wall

Z. . . space

Claims (1)

A sprue crushing device is characterized in that: the upper end is used as a pivoting portion of the pivoting portion and the lower end is held in the crushing housing at a predetermined interval as a working edge of the pivotal portion; further, the initial crushing operation is configured to The blade and the operating blade are arranged in a substantially V-shape in a side view; the operating blade is configured to pass through the pressing mechanism and the pivoting portion at the lower end is moved in the direction of engagement with the blade, and is disposed at a position behind the back of the blade. The portion functions to carry the blade when the operating blade is engaged with the blade, and the blade is composed of a plurality of plate-shaped longitudinal blades having a predetermined height and a plurality of plates arranged substantially orthogonal to the plate-like longitudinal blade. The plate-like lateral direction is formed by the blade, and the operating blade is formed by arranging a plurality of operating blades having a predetermined height and a cross-shaped shape, and each of the operating blade systems is configured to be freely insertable into the longitudinal blade and the lateral direction of the blade. The blade space portion formed by the blade is composed of a plurality of longitudinally movable blades in the form of a longitudinally long plate, a plurality of laterally movable blades in the shape of a horizontally long plate, and a connection connecting the bases of the longitudinally movable blades and the laterally acting blades. Constructed by the member, the longitudinal actuating blade system has a higher high longitudinal working edge having a predetermined height difference and a lower low longitudinal working edge formed in the longitudinal direction, and the lateral operating blade system is formed lower than the high longitudinal working edge and lower than the high The longitudinal operating blade is high, and the high longitudinal working edge and the lateral operating blade are disposed in a cross shape in the front view at substantially the center of the left and right of the high longitudinal working edge, The lateral actuating blade forms a taper having a thickness which gradually becomes thinner from the base to the front end, and the plurality of actuating blades are supplied by the hydraulic cylinders which are connected by the hydraulic pressure path from the same hydraulic source and constitute the same oil pressure path. The same ratio is divided by the predetermined oil pressure after the original pressure generated by the same hydraulic source, and at this time, the reaction force from the crushed runner is smaller than the operating edge of the other operating blade, The pressing force generated by the aforementioned oil pressure divided into the same pressure and the aforementioned reaction force are equal to each other before being pressed by the blade, and the runner is crushed.