JPH034298B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a product take-out device that takes out a product that has been injection molded and extruded from a mold and discharges it out of the machine.

[Conventional technology]

Die-casting machines are classified into rigid-clamping type and horizontal-clamping type depending on the direction of mold clamping, and into rigid-casting type and horizontal-casting type according to the direction in which the molten metal is poured into the mold. The basic configuration is the same. For example, a hard clamp hard casting die casting machine has a cylinder platen connected vertically with four tie bars, a base platen, and a moving platen that moves up and down along the tieper, and is fixed to the base platen and moving platen. A mold and a movable mold are mounted facing each other. Then, the moving platen is lowered using a mold clamping cylinder installed on the cylinder platen side, and the molten metal is injected into the cavity of the clamped mold using an injection device below the base platen. One casting cycle is completed by opening and removing the product. Then, before the start of the next casting cycle, the mold is cleaned, a mold release agent is sprayed, and inserts are inserted as necessary.

However, in the conventional die-casting machines as described above, one casting cycle including mold preparation takes a long time, and in particular, it takes a long time for one casting cycle including mold preparation, etc. This process required more than 70% of the total time, so there was a lot of wasted waiting time and productivity was not good.

[Problem that the invention seeks to solve]

Therefore, the applicant has developed a rotary die casting machine with the aim of significantly improving productivity. This involves holding a mold opening/closing unit that holds a mold at a position that divides the outer periphery of the rotary table into multiple parts in the circumferential direction, and rotating this rotary table so that each of the multiple units placed on its rotation trajectory is Each work is performed in the order of steps while stopping at a work station.

However, in such a rotary die-casting machine, if the working time at any one work station is prolonged, there will be waiting time at other stations and productivity will decrease, so the work is divided between each work station. It is necessary to shorten the required time as much as possible and operate reliably. In particular, in the process of removing the cast product from the mold, the mold opening/closing unit rotating from the previous stage station opens the mold, and the product extruded from the cavity must be quickly received and discharged outside the machine. However, it was difficult to shorten the time and ensure reliable operation, which was an obstacle to the commercialization of rotary die-casting machines.

[Means for solving problems]

In order to solve these problems, the present invention provides a saucer that reciprocates between the product extrusion position between the open upper and lower molds and a position outside the mold, and a diameter that intersects the position outside the mold of this saucer. A product raking machine equipped with a raking member that moves back and forth on a road and whose forward limit position is outside the receiving tray; A product cooling container that can be raised and lowered, a product cooling tank provided below the product cooling container that stores cold water, and a space between the inside of the product cooling tank and a position adjacent to the saucer for cooling the product. A drive device for raising and lowering the container, and a product discharge chute provided on the retreating path of the scraping member and adjacent to the product cooling container were provided.

[Effect]

When the mold opens, the tray moves forward and receives the product extruded from the mold, and then retreats, and the product scraping member of the product scraping mechanism, which was waiting in the forward position, retreats while engaging with the product. The product is scooped up and released into the product cooling container. Next, the link mechanism is operated to cool the product by reciprocating the container between the product receiving position and the inside of the product cooling tank, and the cooled product is discharged from the apparatus by the product discharge means.

〔Example〕

1 to 8 show an example in which the product take-out device according to the present invention is implemented in a rotary die-casting machine, in which FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view. Fig. 4 is a partially cutaway front view of the second station, Fig. 5 is a partially cutaway front view of the mold opening/closing unit, Fig. 6 is a plan view of the same, Fig. 7 is a plan view of the rotary table, and Fig. 8 is a partially cutaway front view of the second station. 1 is a schematic plan view of an entire rotary die-casting machine implementing the present invention. In the figure, the rotary die-casting machine includes a first station 2, whose center lines each have an angle of 120°, indicated by symbols L ₁ , L ₂ , and L ₃ in FIG. 8;
It is equipped with a second station 3 and a third station 4, of which the first station 2 is equipped with a base platen 5 fixed on the floor foundation, and is provided at three locations forming an isosceles triangle. An upright tie bar 6 is inserted into the provided tie bar hole and fixed with a nut 7. Reference numeral 8 denotes a cylinder platen formed into an isosceles triangular shape, into which the upper end of each tie bar 6 is inserted, and is firmly fixed with nuts 9 and split nuts 10. On the upper surface of the base platen 5, a hollow shaft 11 for rotating the table formed in the shape of an inverted funnel is fixed upright and concentrically with the tie bar 6 therein. , upper and lower ball bearings 1 are attached to this hollow shaft 11.
It is rotatably supported via 3 and 14. This rotary table 12 has ball bearings 13,
14, and three sets of mold opening/closing unit holding parts 16A, 16B, and 16C respectively disposed at positions corresponding to each side of the triangle. A fan-shaped support plate 17 supported between adjacent mold opening/closing unit holding parts
A, 17B, and 17C constitute the main part. 18 is a gear that meshes with a pinion (not shown) directly connected to the motor on the base platen 5 side,
The rotary table 12 is fixed to a rotary table 12, and the rotary table 12 driven by a motor is configured to rotate intermittently by 1/3 rotation at predetermined timings according to commands from a control device.

Each mold opening/closing unit holding section 16A, 16B,
16C has exactly the same configuration, so the mold opening/closing unit holding section 16B, which is one of them, and the mold opening/closing unit 25 held in each holding section will be explained. From both ends of the vertical plane of the center frame 15, upper and lower horizontal members 19a,
A pair of arms 19 formed with a vertical member 19c in a cross section of 19b and reinforced with ribs 19d.
is bolted to a rectangular support plate 19e at the base to protrude. Reference numeral 20 denotes a pair of push-up cylinders provided at the front and rear of each of the left and right arms 19, which are supported by the lower horizontal member 19b and fixed with bolts 21, and are raised and lowered by pressure oil introduced into the port 20a. It is equipped with a ram 20b. The push-up cylinder 20 is configured to hydraulically press and support a mold opening/closing unit 25, which will be described later, against the upper horizontal member 19a of the arm 19 as the ram 20b rises. In addition, the circular center frame 15
A stopper 23 is inserted from the cylindrical body 22 fixed above.
is located in the middle of both arms 19, fixed to the cylindrical body 22 and the center frame 15, and protrudes, and is configured to restrict movement of the mold opening/closing unit 25. 24 is a water supply chamber for mold cooling, and is fixed on the cylindrical body 22.

The mold opening/closing unit, which is designated as a whole by reference numeral 25, is equipped with a mounting base 26 as a fixed plate formed in a rectangular plate shape, and a piston rod 67c of an injection sleeper and an ejection cylinder 67, which will be described later, is located in the center of the mounting base 26. At the four corners of the mounting base 26, square tube-shaped brackets 27 are vertically erected by bolting a board 28. A guide rod 30 is supported at the center of each bracket 27 via a bush 29 so as to be able to rise and fall freely, and a shaft hole of a top frame 42 serving as a movable platen, which will be described later, is fitted into the upwardly protruding portion of the guide rod 30. It is configured to be fixed and move up and down together with the guide rod 30. The bracket 27 of the mold opening/closing unit 25 framed in this manner is connected on both sides with upper and lower guide plates 31 and stays 32, and a liner 33 is connected to each stay 32 on both sides via a spacer 34. Bolted. As described above, the mold opening/closing unit 25 inserted into the arms 19 on both sides until it comes into contact with the stopper 23 is inserted into the ram hole 3 provided in the liner 33.
5 corresponds to each of the rams 20b, and when the ram 25b is raised as described above, the mold opening/closing unit 25 is raised by fitting into the ram hole 35, but at this time, the liner 33 is attached to the horizontal member 19a of the arm 19. The mold opening/closing unit 25 is configured so that the mold opening/closing unit 25 is spaced apart from the base platen 5 while being pressed against the mold opening/closing unit 25 by hydraulic pressure. Then, when the mold opening/closing unit 25 is pushed down by the mold clamping force described later against the hydraulic pressure of the push-up cylinder 20, the front and rear sides of the lower surface of the mounting base 26 of the mold opening/closing unit 25 are brought into contact with the upper surface of the mold abutting surface portion 5a of the base platen 5. Take a seat. A mold opening/closing cylinder 36 stands vertically between the left and right pairs of brackets 27, and a cylinder fitting 38 screwed into the threaded portion of the working end of the piston rod 37 is connected to the top frame 4.
The top frame 42 is pivotally connected to metal fittings 39 fixed to both end surfaces of the guide rod 30, and by moving the piston rod 37 forward and backward using hydraulic pressure, the top frame 42 moves against the guide rod 30.
It is configured to move up and down while being guided by 29 pushers. A fixed mold 40 having a cavity and a movable mold 41 are detachably attached to the mounting base 26 and the top frame 42 using bolts, etc., and the mold can be opened and molded by raising and lowering the top frame 42. The alignment is done,
The structure is such that the minimum required mold clamping force is maintained during mold matching. A pair of rams 43, which form part of the top frame 42, are bolted onto the upper surface of the bottom plate 42b of the circular recessed hole 42a of the top frame 42, and a guide plate is provided at the center of the bottom plate 42b. These two rams 43 and shafts 44 slide on the cylinder part 45a and boss part 45b, which are integrated with the ejector plate 45, respectively. They are fitted freely. The push-out plate shaft 44 passes through the boss portion 45b and projects slightly upward from the boss portion 45b. Reference numeral 46 denotes an extruded metal plate that is fixed to the bottom plate 42b with bolts to guide the ejector plate 45 as it moves up and down and to regulate the upper limit of its rise. Pressure oil is introduced into the cylinder portion 45a of the hydraulic cylinder formed by the cylinder portion 45a and the ram 43, and pushes the ejector plate 45 up to its upper limit.

The mold opening/closing unit 25 configured as described above
The mold opening/closing unit holding parts 16A, 16B, 16C are operated by a mold setup device indicated by reference numeral 47 in FIG.
It is supplied to and taken from. That is, the mold setup device 47 includes a large number of rollers 49 arranged in parallel on both sides of the frame 48 and rotated by the drive of a motor.
is the mold opening/closing unit holding part 16A (16B, 16
C). And Koro 4
When the mold opening/closing unit 25 is placed on the arm 19 and the ram 20b of the push-up cylinder 20 is lowered, the roller 49 is rotated in the forward direction. When they come into contact with each other, the limit switch on the mold stage device 47 operates and stops, and by raising the ram 20b, the mold opening/closing unit 25 is positioned, floated above the base platen 5, and fixed. The mold opening/closing unit 25 held by the mold opening/closing unit holding part 16A (16B, 16) is attached to the rotary table 12.
The mold spray device 50 and the insert insertion device 51 are provided here, and the mold opening/closing unit 25 moves the piston rod of the mold opening/closing cylinder 36 and stops there. After advancing and opening the mold, spraying and insert insertion are performed. The mold spray device 50 is equipped with a spray head 53 that moves forward and backward with a hydraulic cylinder 52, and the hydraulic cylinder 52 moves the spray head 53 between the two molds 40, 41 to blow out air, thereby spraying the molds 40, 41. is cleaned and air and mold release agent are applied. In addition, the insert insertion device 51 is a conventionally known device, and after spraying, inserts are inserted into the cavities of the molds 40 and 41 by operating a hydraulic cylinder 54 as necessary. The molds are matched by retracting the molds 40 and 41, and the minimum necessary mold clamping force is applied to the molds 40 and 41.

Further, the first station 2 is provided with a mold clamping cylinder 55, a pair of pullback cylinders 56, an injection device (not shown), and an automatic oil supply device 57. Then, when the mold opening/closing unit 25 moves to the first station 2 in the mold matching state and stops, the main ram of the mold clamping cylinder 55 is lowered by hydraulic pressure to lower the top frame 42, so that both molds 40 and 41 are A large mold clamping force is applied, and this mold clamping force is supported by the base platen 5. During mold clamping, the molten metal in the melting furnace 58 is injected into the injection sleep of the injection cylinder (not shown) by a conventionally well-known automatic water supply device 57, and after the mold clamping, this molten metal enters the cavities of the molds 40, 41. It is ejected. After injection, the mold clamping force is released by the pullback cylinder 56. After injection, the molten metal is solidified and cooled, and during this cooling, the rotary table 12 rotates by 120° C., and the mold opening/closing unit 25, which is in the middle of cooling, moves to the second station 3 and stops.

Therefore, the structure of the frame of the second station 3 and each device will be explained. The second station 3 is the first
An extruded frame 60 having an isosceles triangular shape in a plan view is bolted to the end face of the cylinder platen 8 of the station 2 and installed horizontally. A protruding cylinder frame 61, which is formed into a Y-shape in plan view with arms 61c branching in two directions from a boss portion 61b, protrudes through a bracket 62. The presser claw device 62 attached to the tip of the arm 61c and both ends of the isosceles triangular base of the extrusion frame 60 are connected to the tie bar 6, respectively.
It is connected by 3. The presser cylinder 62 is equipped with a claw 65 that moves horizontally back and forth using a hydraulic cylinder 64 to engage and disengage the tip of the arm 19 of the circuit table 12, and holds the stopped rotary table 12 at a predetermined timing. It is configured to be fixed in place. Note that the arm 61c is supported by a bracket 66 on a foundation on the floor.
67 is the boss portion 61b of the protruding cylinder frame 61
a protruding cylinder supported by port 67;
It is equipped with a piston rod 67c that moves up and down by selectively supplying oil to the mold opening/closing unit 25 and the fixed mold 40. The sleeve 40a for injection is configured to protrude into the mold cavity.
At the same time as the piston rod 67c rises, the top frame 42 of the mold opening/closing unit 25 moves upward while holding the movable mold 41 by the mold opening/closing cylinder 36. When the so-called mold opening is performed, the product whose biscuit part is protruded by the piston rod 67c is held in the cavity of the movable mold 41 and rises.
A piston rod 69 of an extrusion cylinder 68 fixed to the upper surface of the extrusion frame 60 is inserted into a cylinder mounting hole 60a formed in the extrusion frame 60 in this raised position facing the lower boss portion 61b. , this piston rod 69 has
A half-cylindrical cut-off ring 70 is split and fixed. The lower end surface of this coupling ring 70 faces a boss 45b which is a part of the ejector plate 45 of the mold opening/closing unit 25, and when the piston rod 69 is lowered by hydraulic pressure, the ejector plate 45 is moved between the cylinder part 45a and the ram 43. It is configured to descend against the hydraulic pressure of a hydraulic cylinder consisting of. The ejector plate 45 has
A plurality of pins 45c (12 in this embodiment) are fixed so as to protrude downward through pin holes 42c provided in the top frame 42.
An extrusion plate 71 is attached to the lower end of the top frame 4
The movable mold 41 is parallel to the lower surface of the movable mold 41 and is fixed thereto by being inserted into the recessed part of the movable mold 41. Furthermore, a plurality of extrusion pins 72 are protruded from the lower surface of the extrusion plate 71.
This extrusion pin 72 is inserted into a pin hole 41a provided in the movable mold 41 and extends into the cavity. With this configuration, when the piston rod 69 of the extrusion cylinder 68 descends in the state where the mold is opened as described above, the boss portion 45b is pushed by the coupling ring 70, the ejector plate 45 descends, and the extrusion plate Extrusion pin 72 via 71
pushes the product inside the cavity downward from the movable mold 41. After extrusion, the ejector plate 45 is raised and returned to its original position by the hydraulic pressure of a hydraulic cylinder consisting of a cylinder portion 45a and a ram 43.

Next, a device for receiving a product extruded from the movable mold 41 and taking it out of the machine will be described with reference to FIGS. 1 to 3. The base 81 of the product retrieval device 80, which is framed in a rectangular shape in plan view, is connected to the second station 3 from a point extending almost along the line connecting the center of the first station 2 and the center of the second station 3. A frame 83 is fixed to the floor surface so as to extend in a direction perpendicular to the center line, and a frame 83 is mounted on a rail 82 laid on the base 81, and a plurality of frames 83 are pivotally connected to a frame base 83a. pieces of wheels 8
It is provided so that it can run freely by rolling 4. Reference numeral 85 is a hydraulic cylinder for moving the frame 83, and the working end of a piston rod 86 is fixed to the frame base 83a, and the striker 89 is in contact with a limit switch 87 for the forward limit and a limit switch 88 for the backward limit. It is configured to run. 90 is a guide roller for controlling lateral vibration. It should be noted that the frame 83 always moves forward while the device is in use, and retreats to the retracted position when the mold is attached or detached, which will be described later. Furthermore, a box-shaped bearing box 92 is fixed on an arm support stand 91 that is erected in a frame-like manner at the front end of the frame base 83a, and a hydraulic cylinder with a long stroke is mounted on the side plate of the bearing box 92. 93 is installed horizontally. A bracket 95 having a T-shape in side view is fixed to the working end of the piston rod 94 of this hydraulic cylinder 93, and an air cylinder 96 is suspended from the horizontal member of this bracket 95.
At the upper end which is the working end of the piston rod 97,
A horseshoe-shaped saucer 98 that is open to one side is supported by an air cylinder 96 so as to be adjustable up and down.
A pair of guide shafts 99 whose one ends are fixed to the bracket 95 in parallel with the piston rod 94 are supported by bearings in the bearing box 92 and extend parallel to the hydraulic cylinder 93, with their tips connected to the connecting plate 100. are connected. Also, bracket 95
and the connecting plate 100 are connected by a pair of stays 101 provided with a striker 101a. With this configuration, when the piston rod 94 of the hydraulic cylinder 93 moves forward from the illustrated position,
The tray 98 moves forward with the bracket 95, guide shaft 99, connecting plate 100, and stay 101 to the center of the second product removal station 3, and at this position, the piston rod 97 of the air cylinder 96 is actuated to move the tray 98. After being raised to a predetermined position convenient for receiving the product and receiving the product ejected from the movable mold 41 as described above, the piston rod 97 is retracted to return to the position shown. Reference numeral 102 denotes a plurality of limit switches that stop or decelerate the movement of the tray 98 at the forward limit, backward limit, and intermediate position, respectively, by contact with the striker 101a.

On the other hand, the arm support stand 9 of the frame base 83a
A water cooling frame 103 having an L-shape in side view is erected at one adjacent location, and a water tank 104 in which circulating cold water is stored is provided in the lower half wide part of the frame 103 . An arm shaft 105 with a full width of the frame is rotatably supported slightly above the center of the water cooling frame 103 in the height direction, and the other end of a lever 106 integrally formed in the center of the frame 103 is , is pivotally connected to a piston rod of a hydraulic cylinder 107 supported by a water cooling frame 103. Further, a pair of arms 109 having rollers 108 pivotally attached to the tips thereof are fixed to both ends of the arm shaft 105. By moving the piston rod of a hydraulic cylinder 107 forward and backward with hydraulic pressure, the arms 109
09 is configured to rotate approximately 90 degrees between a horizontal position and a vertical position. 110 is a pair of upper and lower strikers that move up and down together with the piston rod, and 111 is a limit switch that stops the arm 109 at both rotational limits when the striker 110 comes into contact with it. Water cooling frame 1
A pair of mutually parallel guide rails 11 are provided in each notch provided on both sides of the arm shaft 105 in the vicinity of the arm shaft 105.
2 are attached to each pair, and rollers 113 are supported on the guide rails 112 on both sides of each pair so as to be able to move up and down. The one designated by the reference numeral 114 is a basket as a product cooling container, which has one end fixed to a shaft supporting a pair of rollers 113 and a central part supported by a pair of rollers 108, and is constructed by both side plates and a bottom plate. The arm 109 rotates between the horizontal position and the vertical position, and moves up and down between the illustrated position and the position in the water tank 104 as the roller 113 moves up and down. is configured to do so. 115 is a pair of limit switches fixed to a bracket 116 standing upright on the water cooling frame 103;
17 is a striker supported by an integrally upright shaft 118 of a non-rotating member on the roller 113 side;
The roller 113, that is, the striker 117 that moves up and down together with the car 114 is configured to come into contact with a limit switch 115, thereby stopping the car 114 at its upper limit and lower limit, respectively.

Further, a frame-shaped puller frame 119 is erected at a location adjacent to the water cooling frame on the frame base 83a, and a bracket 120 extending horizontally in the direction of the car 114 is provided on the top plane of the puller frame 119. It is joined. A hydraulic cylinder 121 is supported by the tip of the bracket 120 and the top plane of the puller frame 119 and extends in a direction perpendicular to the hydraulic cylinder 93, and the action of the piston rod 122 which moves forward and backward by the hydraulic pressure is controlled by the hydraulic cylinder 121. A vertical plate 123 is fixed to the end, and a pair of stays 124 are fixed at one end to the vertical plate 123 so as to surround the piston rod 122.
A guide rod 125 extends parallel to the hydraulic cylinder 121 and has a U-shaped connecting plate 126 at the other end.
is integrally fixed. Further, the guide rod 125 is supported by a bearing provided on the bracket 120 so as to be able to move forward and backward. Furthermore, the vertical plate 123
A puller 127 as a scraping member is provided at the lower end of the piston rod 127 and has an arcuate shape when viewed from above, and is configured to move forward and backward together with the piston rod 122. Then, the saucer 98
When the puller 127, which has moved forward together with the piston rod 122, stops at the position shown by the chain line 127 in FIG. At this time, by retracting the puller 127 along with the piston rod 122 by about a half stroke, the products on the tray 98 are placed in the basket 114 which is on the same horizontal plane as the tray 98 or slightly below it and immediately in front of it. It is designed to be drawn into. After that, due to the above-mentioned rotation and lowering operation of the car 114, the product is transferred to the car 11.
After the car 114, which is held at 4, is put into the water tank 104 and cooled there, the car 114 returns to the position shown in the figure. A chute 128 facing toward the floor is provided at a location corresponding to the bracket 120, and by retracting the piston rod 122 the remaining half stroke, the water-cooled products in the basket 114 are pulled out by a puller 127. After sliding on a chute 128 serving as a product discharging means, the products are accumulated on a floor surface, a transport platform, or the like. 129 is a plurality of strikers provided on the stay 124, and 130 is a limit switch fixed to the bracket 120 side, and the striker 129 is connected to the limit switch 130.
The piston rod 122 is stopped by contacting the puller 127 at its forward limit, backward limit, and product water cooling position.

The casting operation of the rotary die casting machine constructed as described above will be explained in the order of steps for one set of mold opening/closing units 25. After the entire product take-out device 80 is evacuated from the mold setup device 47, the mold opening/closing unit 25 in the mold matching state is moved to the mold setup device 4.
The mold opening/closing unit 25 is moved forward by placing the mold opening/closing unit 25 on the rollers 49 of No. 7 and preparing the mold opening/closing unit 25 by starting the motor to rotate the rollers 49. At this time, rotary table 1
2 is the mold opening/closing unit holding part 16A (16B, 16
C) is stopped with the center located on the center line _L2 , and the ram 20b of the push-up cylinder 20 is lowered, so the mold opening/closing unit 25 that has moved forward can move the roller 49 without interfering with the arm 19 side. The upper end enters the space between the arms 19, contacts the stopper 23, and is stopped by the action of the limit switch on the mold setup device 47 side. When it stops, the push-up cylinder 20
Pressure oil is introduced into the port 20a of the arm 19, and the ram 20b rises and engages with the ram hole 35, and then rises further, so that the liner 33 is hydraulically pressed against the horizontal member 19a of the arm 19, as shown in FIG. It will stop in the state where it is. As a result, as shown in FIG. 5, the lower end mounting base 26 of the mold opening/closing unit 25 is spaced apart from the contact surface 5a of the base platen 5 by, for example, 20 mm.
The degree to which it emerges. Then, when the piston rod 37 of the mold opening/closing cylinder 36 is raised, the top frame 42 is raised and the molds 40, 41 are placed in the mold open state. After opening and closing the mold, the rotary table 12 rotates 120°,
The mold opening/closing unit 25 that has opened the mold stops at the third station 4. Therefore, the spray head 53 of the mold spray device 50 is advanced to the center of the molds 40, 41, and the air mold release agent is jetted out to form the mold 4.
Apply mold release agent to 0.41. spray head 5
3, the piston rod 37 of the mold opening/closing cylinder 36 is moved back and the top frame 42 is removed.
is lowered to align the molds 40 and 41. In this case, the minimum necessary mold clamping force is applied to the molds 40 and 41.

When the mold matching is completed, the rotary table 12 rotates 120 degrees, and the mold opening/closing unit 25 that has been matched stops at the first station 2. Therefore, the mold clamping cylinder 5
When pressure oil is introduced into 5, the top frame 42
By being pushed down against the hydraulic pressure of the mold opening/closing cylinder 36 and the hydraulic pressure of the push-up cylinder 20, and further pushing down the entire mold opening/closing unit 25, a strong mold clamping force acts on the molds 40, 41, and at this time, The mounting base 26 is seated on the contact surface of the base platen 5, and the strong base platen 5 can sufficiently withstand the large mold clamping force. During mold clamping, molten metal is injected into the injection sleeve of the injection cylinder by the automatic hot water supply device 57, and the injection sleeve that has been poured is inserted into the sleeve 40a of the fixed mold 40 through the hole 26a of the mounting base 26, and the mold is heated. Molten metal is injected into the cavities of molds 40 and 41. When this molten metal solidifies, the pressure oil in the mold clamping cylinder 55 is removed and the pressure oil is introduced into the pullback cylinder 56, thereby releasing the large mold clamping force, and the top frame 42 and the mold opening/closing unit 2
5 is slightly raised to maintain a small mold clamping force during cooling.

During the cooling of the molds 40 and 41, the rotary table 12
When the molds 40 and 41 are rotated by 120 degrees, the mold opening/closing unit 25 holding the molds 40 and 41 which are being cooled moves to the second station 3 and stops. When the molds 40 and 41 have finished cooling, the piston rod 3 of the mold opening/closing cylinder 36
7 advances and the top frame 42 rises, and at the same time the piston rod 67c of the protruding cylinder 67 advances, the solidified and cooled product is transferred to the hole 26a.
and a movable mold 41 that is protruded from the fixed mold 40 by a piston rod 67c that protrudes from the sleeve 40a and that rises together with the top frame 42.
It is held in the cavity and rises. At the same time as the top frame 42 finishes rising, the product take-out device 80
When the receiving tray 98 is advanced by the hydraulic cylinder 93 and positioned below the opened movable mold 41, and then the piston rod 69 of the extrusion cylinder 68 is lowered, the coupling 70 hits the boss portion 45b of the mold opening/closing unit 25. Since the ejector plate 45 is pushed down, the product is pushed out from the movable mold 41 via the push-out plate 71 and the push-out pin 72 and supported by the receiving tray 98. Then, when the piston rod 94 of the hydraulic cylinder 93 is moved back to move the saucer 98 back to the position shown in FIG. 3, the piston rod 122 of the hydraulic cylinder 121 is moved back. The heated puller 127 pulls the products on the tray 98 onto the basket 114, so that the hydraulic cylinder 10
When the piston rod 7 is raised, the roller 108
The car 114 supported by the car descends while rotating,
The product is cooled by being immersed in a water tank 104. After cooling, the piston rod of the hydraulic cylinder 107 is lowered to return the car 114 to the illustrated position, and then the piston rod 122 of the hydraulic cylinder 121 is lowered.
When the is moved further backward, the products on the basket 114 are
It is scraped out by a puller 127 and discharged onto a chute 128, slides on the chute 128, and is discharged and accumulated on a floor surface, a transport vehicle, or the like. After that, as described above, the mold is moved to the third station 4 in the open state.

The casting operation has been explained in the order of steps for one set of mold opening/closing units 25, but the rotary table 1
Each time the other mold opening/closing unit holders 18B, 18C of 2 stop at the second station 3, the mold opening/closing unit 25 is supplied thereto and
By performing the same operations as above in steps 3 and 4, a normal casting cycle begins. In addition, during normal casting work, when it is desired to take out a pair of molds 40 and 41 for maintenance etc., when the mold opening/closing unit 25 with the target mold attached is located at the second station 3. It is sufficient to take this out onto the mold setup device 47 and supply a replacement mold opening/closing unit 25 after rotation of the rotary table 12. During this time, normal casting work is continued for the other two sets of mold opening/closing units. Therefore, production of molds other than the ones to be replaced will not be reduced. Furthermore, when all three sets of mold opening/closing units 25 are replaced due to a change in product specifications, the mold opening/closing units 25 must be removed three times at the second station 3 every time the rotary table 12 rotates 120°, and the mold opening/closing units 25 must be removed three times. If the mold opening/closing unit 25 is installed and the work at the other stations 2, 4 is continued during this time, production will not be significantly reduced due to mold replacement.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a product ejecting device includes a tray that reciprocates between a product extrusion position between open upper and lower molds and a position outside the mold, and a mold for this tray. A product scraping machine comprising a scraping member that moves forward and backward on a path intersecting an outside position and whose forward end position is the outer side of the tray, and a mold of the tray that is on a retreating path of the scraping member. A product cooling container is provided adjacent to the outside position and moves up and down between it and the product cooling tank, and a product release chute is provided adjacent to the product cooling container. After entering the mold and receiving the product, it is retreated out of the mold, the product on the tray is scraped into the container by a scraping member that is waiting, and the product is immersed together with the container in a cooling tank to cool it down. By configuring the product to be discharged outside the machine, it is possible to remove the product within a very short period of time during mold opening and then cool and discharge the product at a location outside the machine that will not interfere with the next process operation. , productivity is significantly improved, and especially when using a rotary die-casting machine, the process can be started immediately after taking out the product.
It will be easier to put rotary die-casting machines into practical use, and productivity will be significantly improved.

[Brief explanation of the drawing]

1 to 8 show an embodiment of the product take-out device according to the present invention, in which FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a top view, and FIG. FIG. 5 is a partially cutaway front view of the station, FIG. 5 is a partially cutaway front view of the mold opening/closing unit, FIG. 6 is a plan view of the same, FIG. 7 is a plan view of the rotary table, and FIG. 8 is a rotary machine according to the present invention. FIG. 1 is a schematic plan view of the entire die-casting machine. 40...Fixed mold, 41...Movable mold, 68...
...Extrusion cylinder, 71...Extrusion plate, 72...Ejection pin, 80...Product take-out device, 93...Hydraulic cylinder, 98...Saucer, 104...Water tank, 109...
... Arm, 114 ... Basket, 121 ... Hydraulic cylinder, 127 ... Puller, 128 ... Shoot.

Claims (1)

[Claims] 1. A tray that reciprocates between the product extrusion position between the open upper and lower molds and a position outside the mold, and a tray that moves back and forth on a path that intersects with the outside position of the tray and sets the forward limit position of the tray. a product raking machine equipped with a raking member serving as an outer part; a product cooling container that is movable up and down and provided on a retreating path of the raking member and adjacent to a position outside the mold of the receiving tray; a product cooling tank provided below the product cooling container and storing cold water; a drive device for raising and lowering the product cooling container between the inside of the product cooling tank and a position adjacent to the receiving tray; and the scraping member. and a product discharge chute provided adjacent to the product cooling container on the retraction path of the device, and the scraping member of the product scraper is configured to hold the product in the receiving tray in addition to the forward movement limit position. A product takeout device is characterized in that it stops at a position where the product is transferred from the product cooling container to a product cooling container and a retraction limit position where the product is discharged from the product cooling container onto a product discharge chute.