JPS59189059A - insert loading device - Google Patents

Abstract

PURPOSE:To provide a titled loader which sets surely an insert supplying part in a prescribed position by making the output of a die directing cylinder on the insert loading side of engaging members larger than the output of a cylinder facing oppositely. CONSTITUTION:An insert handling part 60 of an insert 2 loader 7 of a die casting machine 5 for a cylinder block is fixed in the prescribed position with respect to dies 6 by engaging members 75, 76. The member 75 on the insert loading side is advanced by a cylinder 73 so as to be fitted into the engaging hole of the dies and the advancing length thereof is set to a prescribed length by a stopper nut 132a. The insert handling part is positioned with respect to the die 6A on the opposite side by the member 76 which is advanced by a cylinder 74. The pressure of the cylinder 73 is made larger than the pressure of the cylinder 74 to set the part 60 always at a prescribed distance with respect to a die loading part 6B. The device is made extremely compact by using the two cylinders.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to an insert loading device for loading an insert into a mold of a molding machine such as a die-casting machine or an injection molding machine, and particularly for cylinder block molding in a ■-type engine. The present invention relates to an insert loading device suitable for use in modern die-casting machines.

[Prior art]

Generally, when die-casting the cylinder block of an automobile engine from aluminum, a cast iron cylindrical insert that becomes the cylinder lychee is loaded into the mold of the die-casting machine, and then this cylindrical insert and the aluminum casting part are integrated. Aluminum is cast in such a way that For this purpose, an insert loading device that accurately supplies a cylindrical insert such as a cylinder lychee to a predetermined position in a mold is required.

This insert loading device must fully satisfy the following conditions. In other words, the insert delivery section that reciprocates between the insert supply section and the mold of the die-casting machine must operate quickly and smoothly, and the insert delivery section must be precisely positioned at the insert loading position of the mold. Since it is necessary to load two inserts at the same time, the pitch of the insert loading section and the pitch of the insert holding section in the insert delivery section must correspond completely.

By the way, for a cylinder block in which the cylinder arrangement of the engine is straight 716 or horizontally opposed, as mentioned above, it is only necessary to perform accurate alignment within the plane orthogonal to the axial direction of the die-casting machine. V
In cases where the loading directions of the cylinder liners intersect, such as in cylinder blocks for type engines, in addition to the above-mentioned alignment, accurate alignment must also be performed in the axial direction of the die-casting machine. . However, since the opening position of the movable mold is determined by the actuation timing of the limit switch, the stopping position of the mold is not constant every two or three times, making alignment in the axial direction extremely difficult. Therefore, there has been a strong desire to propose an insert loading device that solves all of these problems.

Therefore, as a device that meets such demands, a device is known, for example, as disclosed in Japanese Patent Publication No. 58-13264. This allows accurate loading of die inserts by providing an insert delivery section with a movable frame that can move forward and backward in the axial direction of the die casting machine. However, as shown in Fig. 1, this device is equipped with a movable frame B that can move forward and backward in the axial direction (arrow direction) of the die-casting machine in the insert delivery section A, and a cylinder C for moving the movable frame is disposed on this. A retaining member E that comes into contact with the retaining part of the fixed mold is attached to the tip of the piston rod Cs, and an engaging member G that comes into contact with the engaging part of the movable mold F is attached to the movable frame B via the rod H. The engaging member E is brought into contact with the fixed mold by driving the cylinder C, and the movable frame B is moved in the direction of the movable mold F, thereby moving the retaining member G into the movable mold mF. Since the movable frame B is positioned by bringing them into contact with each other, and the insert loading cylinder (not shown) is aligned with the insert loading cylinder (not shown), it is possible to If the retaining part cannot be provided otherwise, the movement stroke of the piston rod C1 (i-1-A
! 2) had to be made larger, and the width (1) of the insert delivery section A and the guide stroke (L) had to be set correspondingly larger. The movable frame is equipped with two movable frame moving cylinders with different drive outputs, oriented toward the fixed mold and the movable mold, respectively, and each mold is attached to the tip of each rod. Provided is an insert loading device that makes it possible to reduce the movement stroke of the rod, downsize the insert delivery section, and shorten the grip stroke by providing a retaining member that is still engaged with the engagement section of the mold. The structure and the like will be explained in detail below based on the embodiment shown in the drawings.

〔Example〕

Fig. 2 is a side view showing the entire insert loading device according to the present invention, Fig. 3 is a plan view of the stocker, Fig. 4 is a partially cutaway side view of the transfer device, and Figs. 5 to 7 are the same. Transfer device v
-y line, Vl-Vl line and ■-■ line enlarged cross-sectional view, No. 8
The figure is a front view of the insert loader, and FIG. 9 is a plan view of the loader. The stocker 3 is generally composed of a transfer device 4 and an insert loader 7 that receives the insert 2 from the transfer device 4 and loads it into a mold 6 of a die casting machine 5. And as shown in FIG. 3, the axis 1 of the die-casting machine 5 is
It is composed of a substantially U-shaped chute 12 that extends long in one direction and accommodates a plurality of inserts 2 without gaps in the diameter direction, and in this embodiment, a total of 12 chutes 12 are arranged in the height direction. The transfer device 4 side end 12a is inclined at an appropriate angle so that the end 12a on the opposite side is lower than the opposite end 12b. Note that the upper and lower shoes) 12.12 have a predetermined interval between them (d,
C'---) A large number of inserts 2 lined up in 12
When the insert 2 naturally moves downstream while rolling inside the chute 12, in the unlikely event that the insert 2 becomes oblique and stops rolling within the chute 12, the operator should insert his/her hand and remove the insert 2. This is because the orientation of the image can be easily corrected.

An insert feeding mechanism 13 is disposed on one side of the end of each chute 12 on the transfer device 4 side.

This insert feeding mechanism 13 is used to feed the required number of inserts 2 for one casting to the transfer device 4, and as shown in FIG. a lever 1T whose central portion is rotatably supported; and a pair of pins 18A provided at both ends of the lever 17 and selectively protruding into the chute 12.

18B, and a limit swing +19 whose opening and closing are controlled by the lever 17, and the pair of pins 18A.
, 18B are arranged at predetermined intervals of two in the longitudinal direction of the chute 12, at intervals corresponding to three inserts in this embodiment. Therefore, one pin 18A shown in FIG. 2 protrudes into the chute 12 (first inserter).
When 2a is locked, the electromagnetic solenoid 1
When the lever 17 is rotated clockwise by the drive of 5,
When the pin 18A exits from the chute 12 and releases the first inserter 2a, the other pin 18B protrudes into the chute 12 to release the third inserter 2e and 4.
The first to third inserts 2a to 2C roll through the inclined chute 12 and are guided to the transfer device 4.

Then, when the electromagnetic solenoid 15 is activated after a certain period of time has elapsed, one pin 18A protrudes into the chute 12 again, contrary to the above, and the other pin 18B retreats. Therefore, the fourth and subsequent inserts 2 that were locked by the other pin 18B roll to the position of one pin 18A.

The transfer device 4 will be explained in detail based on FIGS. 2 and 4 to 7. The transfer device 4 is disposed between the stocker 3 and the insert loader 7, and The insert holding machine VT23 is equipped with an insert holding mechanism 23 disposed via a rotation mechanism 22, which will be described later. 25
Two fixing plates 26 are disposed on the support shafts 25 at the upper end portion and the middle portion of the support shafts 25. Further, a pair of front and rear movable plates 27a and 27b are disposed on the support shaft 25 and are movable up and down, respectively, located below each fixed plate 26, and these pair of movable plates 27a.

27b are pairwise connected by a connecting plate 30,
In addition, a tapered guide 28 having a sloped surface slightly downward toward the back side and a stopper portion 28a on the back side is disposed between them. On the lower surface of the fixed plate 26 and on the upper surface of the pair of movable plates 27a and 27b, three arcuate portions 31 that match the outer diameter of the insert 2 are provided at a pitch that matches the pitch of the insert loading position in the mold. As shown in FIG. 6, a pair of fixed plates 26 are provided inside each fixing plate 26, each of which is biased downward by a barb 33 and whose circumferential surface partially protrudes so as to be retractable into the arcuate recess 31. Balls 32a F 32b are arranged. A hydraulic cylinder 35 is provided on the lower surface of each fusuma plate 30.
The working end of the piston rond is fixed, and its cylinder side is fixed to the lower fixed frame 26 and the base 24, respectively, and as the cylinder 35 expands, the pair of movable plates 27m and 2γb rise. The insert 2 is held between the fixing plate 26 and the ball 32a during this holding.

32b is pressed by the insert 2 against the spring 33, thereby correcting the misalignment of the axis of the insert 2 with respect to the recess 31. Note that 34a and 34b are movable plates 27a.
, 27b is a position detector such as a limit switch for confirming opening/closing.

Further, of the pair of movable plates 27a and 27b, the left movable plate 27b in FIG. 5 is provided with a detection mechanism 40 for detecting a receiving operation of the insert 2 by the inner iron, which will be described later. This detection mechanism 4° is composed of a plate 43 that is held movably back and forth on a mounting plate 41 and is biased toward the insert 2 by a spring 42, and a microswitch 44 that is disposed on a fixed plate 26. 26 and a pair of movable plates 27a.

When the plate 43 is pressed against the spring 42 by the inner rod while the insert 2 is held by the insert 27b, the support shaft 43tL of the plate 43 contacts the microswitch 44 to operate it. has been done. The taper guide 28 is disposed below the fixing plate 26 at a predetermined distance 2 and integrally therewith, one end of which is close to the tip of the chute 12, and the insert 2 is placed on the taper guide 28. Roll.

In this embodiment, the upper and lower fixed plates 26 and the taper guide 28 are shown as being fixed, but this means that one or both of the upper and lower fixed plates 26, the tapered guide 28, and the movable plates 27a, 27b may be fixed together. When an insert 2 with a length of 2 m above and below is taken out from two selected chutes 12 by appropriately changing the height difference between the top and bottom, the insert 2 is made to be able to be raised and lowered with respect to the support shaft 25 by a drive device (not shown). The interval between the upper and lower fixing plates 26, etc. may be adjusted depending on the level difference of the selected chute 12.

A shaft 46 (see FIG. 7) is vertically provided on the lower surface of the base 24, and the lower end of this shaft 46 is disposed on the support 21, and is raised and lowered by the action of a hydraulic cylinder 47 and a guide rod 39. The lifting table 48 is supported by a bearing 49 so as to be rotatable in the horizontal direction. Further, the shaft 46, in other words, the insert holding mechanism 23 is placed on the lifting table 48 after receiving the insert, and is moved approximately 90 degrees counterclockwise from the state shown in FIG.
A trunnion-type hydraulic cylinder 50 is provided as a rotation mechanism 22 for rotating the piston rod 5.
The working end of the plate 52 is pin-coupled to the tip of a plate 52 fixed to the lower end of the shaft 46, and the cylinder side is held on the lifting table 48 so as to be rotatable in a horizontal plane. Further, the elevating table 48 includes microswitches 54 and 55 for detecting rotation of the insert holding mechanism 23, and a plate 5.
2 stopper 56, the lower end 2 of the insert holding mechanism 23
An arcuate guide plate 51, etc., on which the three wheels slide is provided. 54a and 55a are the lower end portions 2 of the insert holding mechanism 23
With the striker attached to 3a, striker 54a, 55m
kicks the microswitches 54 and 55, respectively,
The rotation end of the insert holding mechanism 23 is detected. When the lifting platform 48 is raised and lowered by driving the hydraulic cylinder 47, the wooden insert holding mechanism 23 also moves up and down.
In addition, each tapered guide 28 that rises and falls integrally with the above-mentioned fixing plate 26 moves up and down any two chutes 12.
The setting can be maintained at the same height as the Note that the insert 2 is held horizontally by the insert holding mechanism 23 and its @
The line is perpendicular to the direction of the axis 11 of the die-casting machine 5, and then the above-mentioned rotation mechanism 22 is driven to rotate the insert holding mechanism 23 by 90 degrees in a horizontal plane, and the insert loader 7 removes the receiver. .

As shown in FIGS. 8 and 9, the insert four-der 7 is provided with an insert delivery section 60 at the tip thereof, and this insert delivery section 60 is connected to the transfer device 4 and the die casting machine 5.
It is configured to move back and forth between the opened molds using a moving device 61, which will be described later. That is,
In the embodiment shown in the figure, there are a total of six insert loading cylinders (insert holding and loading device) 6, three on the upper and lower sides.
3a to 63ffe@ The inserted insert delivery section 60 is reciprocated between the fixed mold 6A and the movable mold 6B and between the parts shown by the imaginary lines in FIG. 8 by a moving device 61 configured with a parallelogram link mechanism, The insert holding mechanism 23 and the receiver load the removed insert 2 into the insert loading portion 69 (see FIG. 10) of the movable mold 6B. The insert delivery section 60 is provided movably in the axial direction of the die casting machine 5 at the extension section 6ib of the horizontal movement member 61a that mates with the moving device 61, in other words, the connecting rod in the parallelogram link mechanism. movable frame 70 (see Figures 8, 9, 11, and 12)
8, a pair of front and rear movable frame moving cylinders 73, 74 for moving the movable frame TO, and a pair of movable frame moving cylinders 73 and 74 above and below the movable frame 70, with the operating direction directed toward the movable mold 6B. Cylinder for insert loading 53m
, 63b, . . . 63f, and piston ronds 126, 127 of each movable frame movement cylinder 73.74.
engaging members 75, 76 for positioning provided at the operating end of the
A pair of insert loading cylinders 63a to 63a are disposed above and below the movable frame 70, respectively.
, 63d to 63f are tilted from a horizontal state to a horizontal line by a desired angle θ, for example, 45 degrees, or an appropriate angle of 30 to 60 degrees, as shown in FIG. It is roughly composed of.

The structure of the insert loading cylinder 63 will be described in detail based on FIG. 13.
81 is a cylinder tube, 82 is a head end cover, 83 is a rod end cover, 85, 86
87 and 88 are fluid passages, and 87 and 88 are an inner rod and an outer rod that are slidably provided in the cylinder tube 81, and a working end of the inner rod 87 is fitted into the inserter 2 and held from the inside. A cylindrical holding body 89 is provided to hold the outer rod 88.
A cylindrical extrusion tube (pushing member) 90 for extruding the insert 2 held by the holder 89 is provided at the operating end. The piston portions 91.92 of these two rods 87.88 are provided with seven flange 91A and a stepped hole 9 that engage with each other in the operating direction of the inner rod 87.
2a is provided at the center of the tip of the holding body 89, and is fitted with a pin that fits into the alignment hole 93 drilled in the tip of the core 6C in the movable mold 6B. A protrusion 95 is provided, and a compression spring 960 is provided on the side.
A presser 97 is provided, which is loaded so that a part of the presser protrudes outside due to elastic force.The presser 97 presses the inner circumferential surface of the insert 2 to push the insert 2 onto the holder 89. It has the function of holding it in a detachable manner. The protrusion 95 is arranged to be movable forward and backward via the 01J ring, and is urged in the projecting direction by the spring 100.
The front chamber 89a and the rear chamber 8 in the holder 89 are connected at the rear end of the protrusion 95.
A check valve 95a is provided in the communication part 9b, and compressed air is supplied to the inside of the front chamber 89a of the holding body 89 through a pipe 101, and the rear chamber 89b is provided with a hole 89C.
It communicates with the atmosphere from the rear side of the holder 89 through the holder 89 . The pipe 101 is guided from the rear side of the holder 89, but when the pipe 101 crosses the passage of the extrusion tube 90, the extrusion tube 9
Cut out part of 0. Therefore, the inside of the holding body 89 is normally maintained at high pressure, and the suppressor 97 is projected to the outside of the holding member 89 by the action of compressed air and the spring 96, thereby suppressing and holding the insert 2 from the inside. However, when the insert loading cylinder 63 is tilted downward, the insert 2 is prevented from sliding off the holder 89 due to its own weight. Then, when the tip of the protrusion 95 contacts the positioning hole 93 and retreats somewhat against the spring 100 when loading the insert, the check valve 95a at the rear end of the protrusion 95 opens, and the holder 89 The airtightness in the front chamber 89a is broken and it communicates with the atmosphere, and the presser 97 is returned by the force of the spring 96, and the insert 2 is released from the presser 97.

In this case, in this embodiment, the front chamber 89a of the holding body 89 is
Although the entire interior is made into a high-pressure chamber, the present invention is not limited to this, and it goes without saying that the presser 97 may be operated by a solenoid or the like, for example.

Insert loading cylinders 63a and 63b are arranged laterally at the base end of the extrusion tube 90, respectively.

A connecting bar 105 is provided for integrally operating the operating parts 63c, 63d, 63e, and 63f.

If several inserts 2 move forward separately, it may be difficult to insert them into the mold 6B, but if you do as described above, the action of this connecting bar 105 will allow several inserts 2 to move forward at the same time. I can do it.

108.106 are these cylinders 63 (63a to 63
f) to the tip of the movable frame 70, as shown in FIG. 11, a common block and a rotatable length mounting base for rotatably centering around the position of the pin 106a; 10T is a pressure chamber; In addition, as shown in FIG.
The rotation limit of 06 is detected by limit switches 106b and 106e. Further, the cylinder 63 is supported via a cushion member 108a, packing, etc., and is attached to the common block 108, as shown in FIG. 13(a), so as to be able to make slight parallel swings.

The insert loading cylinders 63a, 63b, 6
A pair of left and right driving trunnion-shaped cylinders 77a, 77b that tilt 3c, 63a, 63e, and 63f.
77e and 7γd are rotatably supported on their cylinder sides in the vertical direction by a bracket 110 (see FIG. 11) provided on the movable frame 70, and the working end of the piston rod 111 is attached to the mounting base 106. A pin 112a is connected to the connecting member 112 that is connected to the pin 112a. In addition,
The driving cylinder 77 a = 77 d has a component of its acting force that tilts the mounting base 106 maintained in the state. And the driving cylinder γγa~7
7d to extend the piston rod 111, the insert loading cylinders 63a to 63t move in the operating axis direction shown by lines M and N in FIGS. 10 and 11 as the mounting base 106 tilts. For example, the insert loading directions are inclined so as to intersect at the front of the movable mold 6B. That is, the cylinders 63a, 63b, 63c are mounted on the mounting base 106 provided on the upper side of the movable frame 70.
Furthermore, the cylinders 63d, 63e, and 63f are movable frames T.
The operating ends of the mounts 106 provided on the lower side of the mounts 106 are oriented inward, and the mounts 106 are tilted so that the tilted state in the vertical direction is vertically symmetrical.

In addition, the upper and lower cylinders 63a, 63b, 63c and S
The position z1 where the @ lines of 3d, 63et63f intersect is the first
In Figure 0, the axis line of the insert loading portion 69 is shown to coincide with the intersecting position z2, but normally, if the cylinder 63 is only tilted, the movable mold 6B will not move when the mold is opened each time.
The axis 11 of the die-casting machine depends on the difference in the stopping position of
It is normal for the z2 position in the direction to change slightly each time, and the first
As shown in FIG. 1, it is normally positioned a distance of 0 minutes from the position z2.

Although it has already been mentioned that the seven movable frames γa are movably provided on the extension 61b of the horizontally moving member 61a, the specific structure thereof will now be further explained with reference to FIG. 12. In the figure, reference numerals 120 and 121 indicate guide shafts supported by the extension portion 61b in parallel with the axial direction of the die-casting machine. It is supported slidably in the vertical direction (in the figure) and is biased in one direction (toward the fixed mold) by a lever spring 123. And in this movable frame To,
The movable frame moving cylinders γ3 and 74, which are used to move this, are provided in the direction of the axis 11 of the die-casting machine, but opposite to each other.

These pair of movable frame moving cylinders 73 and 74 have different drive outputs, and the cylinder T3 directed toward the movable mold 6B has a larger output than the cylinder 74 directed toward the fixed mold 6A. These cylinders 73.
74 is a flange 125a.

125b, respectively, to the front and rear surfaces of the movable frame 70, and the engaging members 75 and 76 are fixed to the tips of the rods 126 and 127 via flange portions 15a and γ6a. Bars 131 and 132 are attached to the 7:7 angle portions 75a and 76a, respectively, and strikers 132 and 132a are attached to the bars 131 and 132 to operate microswitches for detecting forward and backward movement positions.
, 133 are attached so that their positions can be adjusted. Note that the forward and backward movement limits of the cylinders 73, 74 (D) can also be restricted by using the strikers 132, 132a, 133, etc. as stoppers.On the other hand, the opening edges of the fixed mold 6A and the movable mold 6B are A retaining portion corresponding to the mating member 75°T6 is provided, respectively.

This engaging portion is shown in Fig. 14 (a) t (b) t (c)
F As shown in (d), the opening edge 136 of the mold 6A (6B), the protrusion 13T provided near the opening end, the recess 138, or the opening end of the casting sleeve 139, etc. For example, it may be a cavity 140 of the movable mold 6B as shown by the imaginary line in FIG.

Each of the engaging members 75° and 76 corresponds to such a retaining portion.
The tip shape of is determined. And the engaging members 75, 7
The engaging portion 6 and the engaging portion restrict the movement of the movable frame To, correct misalignment in the left-right and up-down directions, and prevent the insert delivery portion 6o from swinging. That is, it serves to accurately position the insert loading cylinders 63a to 63f at predetermined positions in front of the movable mold 6B. Therefore, in the state shown by the solid line in FIG. 12,
When six pressure streams are supplied to the head side of the cylinder 74 and the dispensing cylinder 74 is operated, the rod 127 first extends and protrudes, the retaining member 76 engages with the retaining part of the fixed mold 6A, and the protrusion occurs. Movement is regulated.

Therefore, after that, the fluid pressure supplied into the cylinder 74 acts as a power to move the cylinder tube, that is, the movable frame 7o to which it is fixed, downward in the figure, and the movable frame 10 is moved by the spring 123.
The spring 123 is moved in the direction of the movable mold 6B against the force of the spring 123.
The motor stops at a position where the motor and power are in balance. Further, when pressure fluid is supplied to the head side of the cylinder T3 to operate the high output cylinder 13, the rod 126 first extends and protrudes, and the retaining member 75 engages with the engaging portion of the movable mold 6B.
Protrusion motion is regulated. Therefore, thereafter, the fluid pressure supplied into the cylinder 73 acts as a power to move the cylinder tube, that is, the movable frame 70 upward in the figure, and moves the movable frame 70 against the action of the dispensing cylinder 14. and move it to the fixed mold 6A side,
It stops at a position that maintains balance with the cylinder 74. In this case, the output of the cylinder 73 facing the movable mold 6B side is designed to be larger than the output of the cylinder γ4 facing the fixed mold 6A side, so the cylinder 73 with high output
3 wins, and cylinder T3 acts to reach its stroke limit. Therefore, this cylinder 7
It should be designed or set in advance so that when point 3 acts to its stroke limit either naturally or by the action of a separately provided stopper, etc., the 21 points mentioned above match the 22 points (see Figure 10.11). For example, large output cylinder 13
The amount of movement of the movable frame To is determined by the action of
As a result, the point z1 coincides with the point z2 and the distance 11o becomes O, so that alignment is performed reliably and easily, and the insert delivery section 60 is prevented from swinging, so that the insert is positioned at a predetermined loading position in a stationary state. It will be done.

If the position is set using the large output cylinder T3 on the insert loading side and the small output cylinder 74 on the opposite side, there is no need to make fine adjustments for variations in the mold opening limit, and no adjustment for thermal expansion of the mold. become. Incidentally, either the large output cylinder 73 or the small output cylinder 74 may be activated first, or they may be activated simultaneously.

Here, when each retaining member 75.76 is moved and positioned using the two cylinders 73.74, the retaining member 75.
The movement stroke of 76 can be set to be large, which is particularly effective when the retaining portion cannot be provided unless it is located at the back of the cavity of the movable mold 6B, as shown by the imaginary line 140 in FIG. 12. Furthermore, by using two cylinders 73 and 74, even if the movement stroke is large or the distance between the fixed mold 6A and the movable mold 6B is narrow, the insert loading side can be used as a mechanical stopper, and cylinder T4 can be used only on the opposite side. The width of the insert delivery part 60 can be made much narrower than in the case where the insert delivery part 60 is moved forward and backward without the possibility of the retaining members 75 and 76 being damaged due to drawing contact with these molds. .

That is, even if the retaining portion is found deep inside the cavity as shown in FIG. Since the amount of movement 14 can be set small, the total width l of the insert delivery section 60 can be made small, and therefore the die stroke L can be made smaller compared to the conventional device shown in FIG.

When the drive cylinders 77a to 77d are driven with the insert delivery section 60 positioned at a predetermined loading position by the operation of both cylinders 73 and 74, the mounting bases 106 are tilted by a predetermined angle θ, and the insert loading cylinder 63m, 63b, 63c and 63d, 63e, 63
F is inclined so as to intersect in front of the movable mold 6B, and then the insert 2 is loaded into the inserted portion 69 of the movable mold 6B and the core 6C by driving these cylinders 63a to 63t (D). This operation will be explained below using mainly FIG. 13.

First, the pressure chamber 107 is connected from the fluid passage 85 on the head end side.
When fluid is supplied to the piston portions 91 and 92,
Inner rod 87. The outer rod 88 is shown in the same figure (b).
They move forward together as shown in FIG. 2, and this forward movement continues until the tip of the holder 89 touches the core 6CIC. The holding body 89 and the core 6c are brought into contact with each other by engaging the tapered projections 95 into positioning holes 93 formed in the core 6C.

Then, the position is corrected by this engaging action and the cushion member 108a, bag 7, etc. that fixedly support the cylinder 63. That is, when a slight displacement occurs in the insert loading portion 69 due to thermal expansion due to a rise in the temperature of the mold, the cylinder 63 is moved by the elastic force of the cushion member 108a etc. by the insertion into the protrusion 95o hole 93. The insert 2 and the insert loading portion 69 are moved in parallel against each other to completely correspond to each other. In this way, the holding body 89
Even if the piston 92 stops at the core 6C, the fluid pressure still acts on the piston 92 of the outer rod 88.
As shown in , only the outer rod 88 moves forward, and the tip of the extrusion tube 90 provided at its working end presses the insert 2, pushing it into the insert-covered lateral portion 6 of the molds 6B and 6C.
Push it inside 9. When loading is completed, the fluid passage 85 is opened,
Fluid is supplied to the pressure chamber 150 from the fluid passage 86 on the return end side, which is the return side. This fluid pressure first acts on the piston 92 to return the outer rod 88, and when it returns to the position shown in FIG.
The flange 91a of the inner rod 87 engages with the flange 91a of the inner rod 87, and the two return to their original state together.

Note that, as described above, this insert loading cylinder 63 is composed of the cylinders 63m, 63b, and 63b disposed on the upper side.
63c and cylinders 63d, 63e, and 6 disposed on the lower side.
Since the operating directions of 3f cross each other, the upper and lower cylinders cannot be operated at the same time, so the operating circuit must be configured so that the cylinders on the other side are operated only after the operation on one side is completed. Must be.

In addition, when loading the insert 2 diagonally downward, it is necessary to operate the suppressing piece 9T so that the insert 2 does not come off from the holder 89 when the insert is tilted and during descent. Also, if you want to load the insert 2 diagonally upward, load the insert 2 into the core 6C and insert it into the extrusion tube 9.
It is necessary to make sure that the insert 2 does not come out of the core 6C after retracting the insert 2, so in that case, a bottle mark ( (see FIG. 10) and press the outer surface of the insert 2. However, when the mold is clamped, the lower part of the insert 2 is pressed by a part of the fixed mold 6A to prevent the insert 2 from falling off, so the bottle 6D is moved back.

After loading the insert 2 into the core 6C in this way, the insert loader 60 returns the insert loading cylinders 63a to 63r to their original horizontal state and operates the cylinders 73 and 74 to load the engaging member. 75, 76
After releasing the engagement between the molds 6A and 6B, the insert loader 7 is operated to retract to the side of the die-casting machine 5, and from the transfer device 4 provided at the retracted position, that is, the insert supply section, to the next In this insert supply section, the holding member 89 is protruded by operating the cylinder 63, and the holding member 89 is inserted into the insert holding mechanism 23 (see FIGS. 4 and 5).
The insert 2 is received by fitting into the inner hole of the insert 2 held by the insert 2 . The operation of the cylinder 63 in this supply section is not particularly different from that during loading described above, so a detailed explanation will be omitted.

However, during this insert delivery, the plate 43 at the back is pushed by the tip of the holding member 89 contained in the insert 2 or the end of the insert 2 that is pushed by the extrusion tube 90. Therefore, it is confirmed that the microswitch 44 is activated on the support shaft 43m, and that the insert 2 has been reliably delivered to the holding member 89. Note that when the holding member 89 is advanced, the insert 2
If it is designed in advance so that the stroke of the plate 43 pushed by the holding member 89 or the insert 2 changes depending on the direction of the
It is also possible to detect whether the insert 2 is oriented in the correct direction by the inactivation. In addition, at the time of receiving, the internal pressure of the holding member 89 is set to atmospheric pressure, and the presser 97 is immersed in the member 89, and when it is fitted into the insert 2, the pressure is increased and the presser 97 is pressed. The insert 2 is protruded and pressed from the inside, and the holding member 89 is configured to more reliably hold the insert 2.

Then, after opening the movable pieces 27 a r 27 b and returning the cylinder 63, the insert 2 is transferred from the insert holder @23 to the holding member 89.

Next, the insert delivery portion 60 is inserted into the fixed mold 5A.

The insert loader 7 for reciprocating movement between the movable molds 6B and the transfer device 4 will be explained. This insert loader 7 employs a so-called parallelogram link mechanism so that the insert transfer section 60 can perform the above-mentioned reciprocating movement while maintaining a horizontal state. That is, this insert loader 7 includes a horizontally moving member 6bL that includes the insert transfer portion 6o and is similar to a connecting rod in a parallelogram link mechanism, a fixed frame 155 that is also similar to a fixed link, and an operating arm 156. Support arm 157
And the link that connects these! 1158.159,
160° and 161, therefore, the lines connecting the centers of these pivot axes 158, 159, 160, and 161 form a parallelogram. The actuating arm 156 is bent into a U-shape so as to avoid the tie bar 165 of the die-casting machine 5, and a stopper member 166 that comes into contact with the tie bar 165 is provided inside the bent portion.

170 is a base supporting this insert loader γ, 17
1 is a trunnion-shaped cylinder provided on this base 170, and the operating end 172m of the rod 112 is connected to the operating arm 156 with a pin 173.

Although not shown in the drawings, the oil supply/drainage section of the cylinder 171 has a passage connecting the oil supply/drainage chamber and the cylinder chamber to the axis of the cylinder in order to reduce shocks at the start and stop of operation. It is formed with several small holes lined up in the direction. These small holes are opened and closed by the movement of the piston, so as the piston moves, the number of small holes communicating with the cylinder chamber increases on the oil supply side, while the number of small holes communicating with the cylinder chamber decreases on the oil drain side. In fact, this functions to soften the shock at the start and stop of operation.

Therefore, the cylinder 171 is in the state shown by the solid line in FIG.
When the actuating arm 156 rotates clockwise, the support arm 157 also rotates in the same direction, and the insert delivery section 60, which is integrally provided with the horizontal movement member 618, maintains its horizontal state. It moves to the side of the die-casting machine 5, that is, to the position indicated by the broken line 175. At this position, the above-mentioned insert 2 is fed and prepared for the next insert loading. During this time, the die casting machine 5 is operated and die casting is performed. When the die casting is completed and the movable mold 6B is moved back to a standby state, the cylinder 171 is actuated to perform an operation opposite to the retracting operation and position the insert delivery section 60 at the position shown by the solid line. The positioning at this time and the subsequent insert loading operation are the same as those described above, and will therefore be omitted here.

In the above embodiment, insert loading in a horizontal die-casting machine was explained.
It can also be used with vertical molding machines such as vertical die-casting machines. However, in that case, the insert loader 7 is horizontally rotated or horizontally advanced with the insert facing upward, and the insert is loaded into the upper movable mold from diagonally below. Of course, in a horizontal or vertical molding machine, the insert can also be loaded into the fixed mold side.

〔Effect of the invention〕

As explained above, according to the insert loading device according to the present invention, a pair of drive outputs directed in opposite directions toward the fixed mold and the movable mold are provided on the seven movable frames arranged in the insert delivery section so as to be able to move forward and backward. The first cylinder is equipped with movable frame moving cylinders with different angles and is oriented toward the insert loading side.
The output of the cylinder is made larger than the output of the second cylinder in the opposite direction, and the insert holding and loading device is aligned with the insert-loaded part at the forward limit of the first cylinder, ensuring alignment. Therefore, the maximum movement amount of the movable frame itself can be set small, and therefore, the overall width of the insert delivery section is small, it can be made into a shed, and the die stroke can be shortened, which has very large effects.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining the positioning of a conventional movable frame, FIG. 2 is a side view showing the entire cylindrical insert loading device according to the present invention, and FIG. 3 is a plan view of the stocker and transfer device. Fig. 4 is a partially cutaway side view of the transfer device, Fig. 5 is an enlarged sectional view taken along line v-v of Fig. 4, and Fig. 6 is Fig. 5 VI-V.
I-line enlarged sectional view, Figure 7 is an enlarged sectional view of Figure 4 - ■ line,
Fig. 8 is a front view of the insert loader, Fig. 9 is a plan view of the insert loader, Fig. 10 is a front view of the main parts of the insert delivery section, and Fig. 11 is a partially cutaway front view of the insert delivery section. 8th
Figure 1-XI line enlarged sectional view, Figure 12 is a cross-sectional view of the insert delivery section, Figure 13 (a) l (b), (C)
14(a) l (b) l(
e) l (d) is a diagram showing different embodiments of the engagement between the engagement part of the mold and the engagement member, and FIG. 15 is a diagram for explaining the present invention in detail. 2#--Insert, 3@+1e-Stocker, 4-Gravel...Transfer device, 5--Die-casting machine, 13A-
...Fixed mold, 6B...Movable mold, 6C...
Core, 1@--insert loader, 6011...φ insert delivery section, 63.63a-63f'... insert loading cylinder (insert holding and loading device), 6
9...Insert loaded part, 70...-Movable frame, 73.7411 @a, cylinder, 81...
... Outer rod, 88 ... Inner rod, 8
9... Holding member (holding part), 90... Extrusion tube,
165...Tie bar. Figure 4 Figure 5 Figure 10 Figure 108 d Sobi Ll o5'a, o Kochi 041 No. 11
figure

Claims (1)

[Claims] A movable frame is installed in the insert delivery section that moves back and forth between the fixed mold and movable mold of the molding machine and between the insert supply section, so that it can move freely in the axial direction of the molding machine, and the insert can be held and loaded into any room. A first step in which the holding and loading device is attached to a movable frame, and has a retaining member that is engaged with a fixed die and a movable die, respectively, to align the core of the insert holding and loading device with the insert-loaded portion. The second cylinders are attached to the movable frame in opposite directions, so that the output of the first cylinder directed toward the mold on the insert loading side can be made even stronger than the output of the second cylinder directed in the opposite direction. An insert loading device characterized in that the insert loading device is provided so that the core metal setting can be performed at the forward movement limit of the first cylinder.