JPH05225U - Mold holder - Google Patents

Abstract

(57) [Summary] [Purpose] To accurately position various molds with different front-back dimensions on the mold stand used in the carriage type mold exchange system, omit the positioning spacers and cylinders. [Structure] The operated member 17 fixed to the left side of the mold plate 14 is configured to be able to be pushed and pulled in the left and right direction by the push and reference hook 31 of the mold exchanging carriage 3. When the mold 13 on the carriage 3 is transferred to the mold stand 6, the hook 31
The mold plate 14 is carried out to a predetermined position on the table 6 by means of the left and right stoppers 41, 42 provided on the upper part of the table 6 so that the operated member 17 moves in the left-right direction.
Prevent by. The above left first stopper 41
Is retracted below the mold loading surface S when the mold 13 passes through. The second stopper 42 on the right side is arranged at a position that allows the mold 13 and the mold plate 14 to pass through.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a mold placing device used in a trolley type mold changing system, more specifically Speaking specifically, the equipment is connected between a molding machine such as an injection molding machine and a mold change carriage. A mold stand for temporarily placing the replaced mold is provided.

[0002]

[Prior art]

  Japanese Utility Model Laid-Open No. 61-47611 discloses a dolly change system of this type. Some are listed. This is for molds placed on the mold loading surface on the mold change cart. Engage the push-quote hook from above and drive the hook in the front-back direction in the engaged state. By doing so, the mold is moved in and out of the injection molding machine.

[0003]   Further, the mold placing device which is the subject of the present invention is shown in each of FIGS. 12 to 14. The first to third conventional examples shown respectively are known. Basic structure of each conventional example The structure is as follows.

[0004]   Mold loading that extends in the front-back direction (left-right direction in the figure, the same below) on top of the mold stand 6. The mold plate 14 (here, one side is provided with the surface S and fixed to both left and right sides of the mold 13) The downward projection 14a is moved to the mold loading surface S in the front-rear direction. Place it so that it can move. In the front part of the mold plate 14 (the left part in the figure, the same below), The driven portion 18 for pushing and pulling the die and the received portion 19 for blocking the die advance are fixed. Up Using the push-quote hook (not shown) of the die replacement carriage arranged on the front side of the die stand 6 described above. Thus, the driven portion 18 is configured to be able to be pushed and pulled in the front-rear direction. In addition, FIG. In the first conventional example of FIG. 13 and the second conventional example of FIG. 13, a pneumatic seal is provided on the front part of the die stand 6. A stopper 41, which consists of a piston rod of The par 41 is configured to face and be released from the front of the received portion 19 to be received.

[0005]   In the above-mentioned basic structure, the mold 13 and the mold pre-loaded from the trolley to the mold placing table 6 are loaded. The structure of the portion for positioning the seat 14 at a predetermined position on the mold stand 6 is the same as that of the conventional example. Then it was as follows. (First conventional example) ・ See FIG.   In the case of the standard length mold 13, as shown in FIG. Directly received by the backward blocking block 57 at the rear of the mold stand 6 (right in the figure, the same below) The driven part 18 is positioned to a predetermined size M, while it is shorter than the reference length. In the case of the mold 13, a spacer is provided at the rear of the mold plate 14 as shown in FIG. By fixing 58 with bolts 59, the driven part 18 can be positioned at the predetermined size M described above. It is something to arrange.

[0006] (Second conventional example) ・ See FIG.   In place of the spacer 58, a pneumatic cylinder 60 is provided at the rear of the mold stand 6, The mold plate 14 is received by the piston rod 61 that has been advanced in advance. By stopping, the driven part 18 is configured to be positioned to the above-mentioned predetermined size. It is a thing.

[0007] (Third conventional example) -See FIG.   A pneumatic cylinder 63 is provided near the center of the mold table 6 in the front-rear direction, and the piston When the rod 64 is engaged with the engaging groove 14b formed in the center of the mold plate 14, Together, the driven portion 18 is fixed to the front portion of the mold plate 14 via the spacer 65. The driven part 18 is thereby configured to be positioned at the predetermined size. It is a thing.

[0008]

[Problems to be solved by the device]

  The above-mentioned conventional examples have the following problems. (First conventional example) ・ See FIG.   Since the spacer 58 projects from the mold plate 14, the spacer 58 is ejected. It tends to be an obstacle to the molding work with a molding machine.

[0009] (Second conventional example) ・ See FIG.   Since the pneumatic cylinder 60 projects from the mold stand 6, the mold stand 6 is correspondingly large. Type. In addition, when positioning the mold plate 14, the front-back length (left and right in the figure Adjust the piston lock according to the receiving timing of the mold plates 14 with different lengths. Since it is necessary to adjust the amount of advance of the blade 61, the configuration of the control device of the mold placing device Is complicated.

[0010] (Third conventional example) -See FIG.   The thickness of the spacer 65 is half that of the first conventional example shown in FIG. 1 The problem of the conventional example can be halved, but since the pneumatic cylinder 63 is required, the above second Similar to the conventional example, the configuration of the control device of the mold placing device is complicated.   The present invention is intended to facilitate the molding work and to reduce the size of the mold stand. And to simplify the configuration of the control device of the mold placing device.

[0011]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the present invention provides a driven part 18 for pushing and pulling with a die stand 6. The structure of the portion to be positioned above was constructed as follows.   For example, as shown in FIGS. 1 to 7, or FIGS. 8, 9, 10, and 11, respectively. To   On the front part of the mold plate 14, the received part 20 for preventing the mold retreat is provided below the mold 13. It is fixed to the lower side of the surface L and the upper side of the mold loading surface S, and A stopper 42 for preventing retreat is provided at the front part of the At the same height as the received portion 20 for preventing die retreat, the rear portion of the received portion 20 It was configured to be able to meet from B.

[0012]

[Action]

  The present invention operates as follows, for example, as shown in FIG.   When transferring the mold 13 and the mold plate 14 from the mold exchanging carriage 3 to the mold placing table 6. In order not to interfere with the passage of these mold 13 and mold plate 14, The blocking stopper 41 is retracted from the die passing space (here, the die loading surface is (Evacuate below S) and engage the driven part 18 for push and pull in this state. The push-pulling hook 31 that has been set is driven to move to the rear side B, and the mold 13 and the mold pusher on the carriage 3 are driven. The rate 14 is advanced toward the mold stand 6.

[0013]   When the mold plate 14 reaches a predetermined position on the mold stand 6, the hook 3 The advance drive of No. 1 is stopped, and the receiving portion 20 for preventing the retreat of the mold plate 14 is stopped. The stopper 42 for preventing backward movement is faced from the rear side B, and the stopper for forward movement is stopped. Face the par 41 from the front side A to the advancing blocked portion 19 of the die plate 14. (Here, the mold loading surface S is made to project upward and face it). This allows The mold plate 14 is prevented from moving back and forth by the two stoppers 41 and 42, The push-pull driven part 18 can be accurately positioned on the mold stand 6. So After that, the hook 31 is disengaged from the driven part 18, and the hook 31 is moved to the carriage 3 It is returned to the upper predetermined position.   As described above, the driven part 18 of the mold plate 14 is accurately positioned on the mold stand 6. Since it has been decided, next time the mold plate 14 and the mold 13 will be placed on the mold stand 6. When taking out from the carriage 3 to the carriage 3, the hook 31 is easily engaged with the driven portion 18. It is possible to

[0014]

[Effect of device]

  The present invention has the following effects because it is configured and operates as described above.   In positioning the driven part for pushing and pulling at a predetermined position on the mold stand, the first slave Unlike the conventional example (see FIG. 12) and the third conventional example (see FIG. 14), the space from the mold plate is changed. Since it is not necessary to project the tool, the mold plate can be used for injection molding machines and other molding operations. It can be prevented from getting in the way and the molding work can be facilitated.

[0015]   In addition, the back plate of the die plate is provided to prevent it from moving backward, and it is moved back to the die stand. By providing a blocking stopper, the second conventional example (see FIG. 13) and the third conventional example Since the positioning cylinder (see Fig. 14) can be omitted, the mold stand can be made compact. In addition, the configuration of the control device can be simplified.

[0016]

【Example】

  An embodiment of the present invention will be described below with reference to FIGS.   First, the overall configuration of the mold exchanging system will be described with reference to the plan view of FIG.   A rail 2 for a truck is installed between four injection molding machines 1a, 1b, 1c, 1d of different models. The die replacement carriage 3 (hereinafter, simply referred to as “the die placement surface”) that is disposed and has two left and right die loading surfaces 4 and 5 A trolley) is allowed to travel in the left-right direction along the rail 2. That rail On the rear side B of the right end portion of 2, a plurality of mold placing tables 6 are fixed. Each mold stand 6 It has two left and right mold loading surfaces S and S.

[0017]   For example, the used mold (not shown here) of the injection molding machine 1a can be replaced by the following procedure. It is done in order. First, place the dolly 3 on the front side A of the mold stand 6 along the rail 2. A new mold (here, it is placed on the mold loading surface S of the mold stand 6). (Not shown) is carried out to the mold loading surface 4 on the left side of the carriage 3. The carriage 3 is shown in the figure The injection molding machine 1a to the position A on the front side as shown in FIG. The only mold is loaded on the right mold loading surface 5. Next, the trolley 3 is preset distance Just move it to the right side, and insert the new mold on the left mold loading surface 4 into the injection molding machine 1a. Carry out. After that, the carriage 3 is moved to the position of the front side A of the mold placing table 6, and the right side The used mold on the mold loading surface 5 is returned to the loading surface S of the mold mounting table 6.

[0018]   The configurations of the carriage 3 and the mold stand 6 will be described with reference to FIGS. 1 and 3 to 7.   As shown in the plan view of FIG. 3 and the elevation view of FIG. 4, the die loading surface 4 (and And the die loading surface 5) on the right side extend on the left side in the front-rear direction (direction of arrow AB, the same applies hereinafter). It is composed of a short roller group 7 and a right long roller group 8. In addition, the mold stand 6 Each mold loading surface S also has a short roller group 10 on the left side and a long roller on the right side that extend in the front-rear direction. And a group of la 11. Mold plates 14 and 14 are provided on both left and right sides of the mold 13. It is fixed, and its downward projecting portions 14a, 14a are forward and backward on the mold loading surface S. It is mounted so that it can move in any direction.

[0019]   As shown in FIG. 1, FIG. 5 and FIG. 6, L is attached to the front part of the left mold plate 14 described above. The bracket 16 is fixed. Horizontally fixed to the lower front of the bracket 16 The operated member 17 is a driven part for pushing and pulling the mold (hereinafter referred to as a driven part) 18, The received part (hereinafter referred to as the first received part) 19 for blocking the die advancement and It constitutes a non-receiving portion (hereinafter referred to as a second non-receiving portion) 20 for stopping. above The lower end surface of the operated member 17 is lower than the lower surface L of the mold 13 and is the mold loading surface. It is located above S.

[0020]   Each of the upper parts of the carriage 3 and the mold stand 6 has two C-shaped cross-sections. Guide rails 23 and 24 formed by facing the rail members 22 are fixed. A push / pull base driven by a chain 25 onto the guide rails 23 and 24. 26 is movably inserted in the front-rear direction via front and rear rollers 27, 27, and Drive the lane 25 by the sprocket 28 provided in the upper part of the front side A of the trolley 3. It is configured to be possible. The sprocket 28 is rotated by a motor (not shown). Driven. The portion of the chain 25 on the front side A is a storage box 29 in the carriage 3. It can be folded and stored.

[0021]   The push / pull hook 31 inserted into the storage groove 26a of the push / pull base 26 has the pivot pin 3 2 is swingably supported on the upper and lower sides by a spring 33, and an upper engaging position X (actual (See diagram). In addition, the tip of the push-quote hook 31 has a tip A cam surface 34 in the shape of a rib and an engagement groove 35 that engages with the driven portion 18 of the mold plate 14. Are formed side by side.

[0022]   The piston rod 37 moves up and down on the front side A of the die stand 6. The pneumatic cylinder 38 and the mold retreat blocking block 39 are fixed. Above fix A stopper for preventing forward movement provided on the upper part of the rod 37 (hereinafter referred to as the first stopper). (41) is configured to face the first received portion 19 from the front side A. In addition, a stopper 42 (hereinafter referred to as the second A stopper) is made to face the second received portion 20 from the rear side B. The upper surface of the above-mentioned second stopper 42 is the lower end surface of the second received portion 20 and the mold 13. It is located at a height between the lower surface L and the lower surface L.

[0023]   The procedure for loading and unloading the mold 13 between the carriage 3 and the mold stand 6 will be mainly described below. This will be described with reference to FIG.   In the state where the mold 13 is stored on the mold loading surface S of the mold stand 6, the block 39 When the movement of the mold plate 14 to the rear side B is blocked by the second stopper 42 of At the same time, the first stopper 41 is extended by extending the pneumatic cylinder 38. Prevents the mold plate 14 from moving to the front side A. With this, the mold 13 The mold plate 14 is accurately positioned at a predetermined position in the front-rear direction. Also, The push / pull base 26 is retracted to the front side A portion on the carriage 3.

[0024]   When the mold 13 is transferred from the mold stand 6 to the carriage 3, the sprocket 28 is The push / pull base 26 on the carriage 3 is rotated clockwise by a motor (not shown). To the rear side B. As the push-pull base 26 advances, first, the push-quote hook 3 The cam surface 34 of No. 1 abuts the lower surface of the driven portion 18 of the mold plate 14, and Due to the downward reaction force that acts on the cam surface 34 from the drive portion 18, the tip portion of the hook 31 is It swings downward against the spring 33.

[0025]   Subsequently, the push-pull base 26 moves forward, and the engagement groove 35 of the hook 31 is moved to the driven portion 18 When approaching the position, the tip of the hook 31 moves upward due to the elastic force of the spring 33. It swings, and the engagement groove 35 engages with the driven portion 18. As described above, the hook 31 Immediately before the engaging groove 35 of FIG. The mitt switch 44 detects the advanced position of the push / pull base 26 and turns the motor (not shown). Stop the rolling to stop the push / pull base 26 and contract the pneumatic cylinder 38. Then, the first stopper 41 is retracted below the lower end surface of the first received portion 19 It is configured as follows. To move the push / pull base 26 to the front side A in the above engagement state Thus, the mold 13 is pulled out to the carriage 3.

[0026]   Contrary to the above, the operation of moving the mold 13 from the trolley 3 to the mold stand 6 is performed by the following procedure. To be done.   First, the push / pull base 26 drives the mold plate 14 on the carriage 3 to move to the rear side B. At the same time, the pneumatic cylinder 38 is contracted to retract the first stopper 41. It As the push-pull base 26 advances from the trolley 3 side to the mold stand 6 side, The limit switch 44 detects the advanced position, and the push / pull base 26 is moved to the above-mentioned position. The pneumatic cylinder 38 while stopping at the locking engagement position. The forward movement of the plate 14 is prevented. As a result, the mold plate 14 has two The stoppers 41 and 42 prevent the front-back movement, and the position is accurately set on the mold stand 6. It will be arranged.

[0027]   In the above state, the pneumatic actuator 45 fixed to the mold stand 6 (see FIG. 1). (Light) is extended, and the pressing pin 47 of the push / pull base 26 is raised by the pressing tool 47. Then, As shown in the chain double-dashed line diagram in FIG. 1, the tip of the hook 31 swings downward and is driven. It is switched to the disengagement position Y lower than the lower end surface of the moving portion 18. In this state, The sprocket 28 is driven to rotate counterclockwise. Then, the push / pull base 26 is connected to the chain 2 5, the engagement between the engagement groove 35 and the driven portion 18 is released by being pulled toward the front side A by 5. To be done. Subsequently, the push / pull base 26 is moved to a predetermined position of the carriage 3. Is.

[0028]   The device configured as described above has the following advantages.   The first to-be-received portion 19 and the second to-be-received portion 20 are provided on the pair of side surfaces of the mold 13. Since it is provided near the center of the space, the mold 13 is received by each stopper 41 or 42. The moment that acts on each stopper 41 or 42 from the mold 13 when The stoppers 41 and 42 do not get damaged as they become smaller.

[0029]   Further, the hook 31 is engaged and engaged with the driven portion 18 protruding downward from the lower side. Since it is configured to be disengageable, other objects such as molds can be placed on the hook 31 on the carriage 3. Even if it collides from the side, since the hook 31 is swung downward, It is possible to prevent the hook 31 and the push / pull base 26 from being damaged.   In addition, the driven portion 18, the first received portion 19 and the second received portion 20 are combined into a single received portion. Since it is provided on the operation member 17, the structure for providing these members 18, 19, 20 It is simple.   Further, the second stopper 42 is fixed to the block 39 fixed to the mold stand 6. Since it is determined, the structure for providing the second stopper 42 is also simplified.

[0030]   The chain 25 is only required to be push-pullable and bendable. Alternatively, a belt or wire may be used instead.   Further, the mold loading surface S of the mold placing table 6 may be one surface or three or more surfaces.

[0031]   8 to 11 show the first to fourth modifications. Smell in each modification In principle, the members having the same functions as those in the above-mentioned embodiment are designated by the same reference numerals.

[0032]   In the first modification shown in FIG. 8, an upright and downward swingable block 39 is supported by the reverse blocking block 39. The arm 51 is elastically pressed by the spring 52 to the stop position of the solid line diagram. A second stopper 42 is provided at the upper swing end.   According to this configuration, the mold is placed on the mold stand 6 by a crane or a forklift. When the loading operation is performed, the operated member of the bracket 16 may be affected by the operation error. Even if 17 collides with the second stopper 42, the arm 51 moves to the retracted position shown in the two-dot chain diagram. Since it is switched to the position, it is possible to prevent the second stopper 42 from being damaged.

[0033]   Further, according to the configuration of FIG. 8 described above, the mold and the mold play table are mounted on the mold stand 6. In addition to loading the front part from the front side (left side in the figure) to the rear side (right side in the figure), It is also possible to load the mold plate from the rear side (right side in the figure) to the front side (left side in the figure). It will be possible. That is, move the mold and mold plate from the right side to the left side, When the lower end of the operated member 17 of the bracket 16 contacts the upper surface of the arm 51, The arm 51 is swung downward and the passage of the operated member 17 is allowed. Of.

[0034]   In the second modified example of FIG. 9, the pin 54 is provided with a spring 55 on the tubular reverse blocking block 39. Repulsive pressure is applied to the upper stop position by the second stopper 4 above the pin 54. 2 is provided.

[0035]   In the third modified example of FIG. 10, the bracket 16 of the mold plate 14 is provided with an upward facing member. The drive unit 18 and the first and second downwardly received portions 19 and 20 are provided. is there. The push reference hook 31 of the push / pull base 26 is engaged with the driven portion 18 from above. It is configured to.

[0036]   FIG. 11 shows a fourth modification.   Reference numeral 71 is a pneumatic cylinder of a single acting spring return type. Fixed to the mold stand 6 A piston 72 is vertically movably inserted into the cylinder 71. The piston 72 The second stopper 42 is installed on the upper end of the piston rod 73 projecting upward from above. Kick As shown, when the compressed air in the working chamber 74 is discharged from the air supply / exhaust hole 75, The piston 72 is raised by the spring 76, and the second stopper 42 is From the rear side, the second received portion 20 for preventing backward movement fixed to the bracket 16 is paired. Face.

[0037]   On the contrary, compressed air is supplied from the air supply / exhaust hole 75 to the working chamber 74. Then, the piston 72 is lowered against the spring 76, and the second stock is pushed. The facing between the par 42 and the above-mentioned second received portion 20 is released. As a result, The racket 16 and the mold and the mold plate (neither are shown) are attached to the rear side (Fig. You can also move to the above (right side).

[0038]   The structure shown in FIG. 11 has the following advantages when applied to the following device.   As shown in FIG. 2 described above, the rails 2.2 and the carriage are provided on the front side A of the plurality of mold placing tables 6. 3 is arranged, and in addition to this, another rail and another carriage are also provided on the rear side B of these pedestals 6. To place. Then, the mold placed on the table 6 is moved to the rear side B by the hook. By driving, the mold can be transferred to the rear carriage. Therefore, these stands 6 Can be shared with multiple trolleys, so the installation space is small and The cost of production is also low.

[0039]   Instead of providing another rail and trolley as described above, On the rear side B, a push-pull type carriage or a fixed type temporary placing stand may be provided. The latter temporary In the case of a platform, the molds loaded on that platform must be transferred using an overhead crane or forklift. Done by

[0040]   The first stopper 41 and the second stopper 42 described above are different from those of the above-described embodiment. Instead of projecting upward from the mold stand 6 as shown in the example, the mold stand 6 It is also possible to project laterally from the guide rail 24 of the Is.   Further, the driven part 18, the first received part 19 and the second received part 20 are all It is also possible to use a separate member.

[Brief description of drawings]

1 shows an embodiment of the mold placing device of the present invention, and FIG.
2 is a cross-sectional view taken along line I-I of FIG.

FIG. 2 is a plan view of a mold exchanging system using the mold placing device.

FIG. 3 is a plan view showing a mold exchanging carriage and the mold placing device.

FIG. 4 is an elevational view of the above mold placing device,
It is a IV-IV line arrow line view.

5 is an enlarged view of a main part of FIG.

6 is a view taken along the line VI-VI of FIG.

7 is a sectional view taken along the line VII-VII of FIG.

FIG. 8 is a partial view corresponding to FIG. 1, showing a first modified example of the present invention.

FIG. 9 is a view corresponding to FIG. 8, showing a second modification of the present invention.

FIG. 10 is a view showing a third modified example of the present invention and corresponding to FIG. 8.

FIG. 11 is a view corresponding to FIG. 8 showing a fourth modified example of the present invention.

FIG. 12 is a diagram corresponding to FIG. 1 showing a first conventional example.

FIG. 13 is a view showing a second conventional example and corresponding to FIG. 12 (B).

FIG. 14 is a view showing a third conventional example and corresponding to FIG. 12 (B).

[Explanation of symbols]

3 ... dolly, 6 ... metal mold stand, 13 ... metal mold, 14 ... metal mold plate, 14a ... downward protrusion, 17 ... operated member, 18
... Driven part for pushing and pulling, 19 ... Received part for preventing forward movement
(First receiving portion), 20 ... Receiving prevention receiving portion (second)
(Received portion), 31 ... push reference hook, 35 ... engagement groove, 3
9 ... Blocks, 41 ... Advance prevention stoppers (first stoppers), 42 ... Retraction prevention stoppers (second stoppers), A ... Front side, B ... Rear side, L ... Lower surface of mold 13, S ...
Mold loading surface, X ... engagement position, Y ... engagement release position.

Claims (6)

[Scope of utility model registration request] 1. A mold loading surface (S) extending in the front-rear direction is provided on an upper part of a mold stand (6), and a mold plate (14) (14) fixed to both left and right side faces of the mold (13). Downward protrusion (14a)
(14a) is mounted on the die loading surface (S) so as to be movable in the front-rear direction, and the front portion of the die plate (14) is
The driven part (18) for pushing and pulling the mold and the received part (19) for blocking the mold advancement are fixed, and the front side (A) of the mold stand (6).
The driven part (18) can be pushed and pulled in the front-rear direction by the push and pull hook (31) of the die exchanging carriage (3) arranged at the front of the die stand (6). The forward movement stopper (41) provided on the
(19) In the mold placing device configured so as to be face-to-face and face-to-face removable from the front side (A), the above-mentioned mold plate (14)
A receiving part (20) for preventing the mold retreating on the front part of the lower side of the lower surface (L) of the mold (13) and on the mold loading surface.
It is fixed to the upper side of (S), and a stopper (42) for preventing retreat is provided at the front part of the mold stand (6), and the stopper is provided.
(42) is configured so that it can face the received portion (20) from the rear side (B) at substantially the same height position as the backward stopping received portion (20). Mold placement device. 2. The mold placing device according to claim 1, wherein the forward blocking received portion (19) and the backward blocking received portion (20) are connected to the mold (13). It is provided between the left and right side surfaces, and the advance prevention stopper (41) is configured to be movable up and down with respect to the mold stand (6), and the retraction prevention stopper (42) is the same as above. It is configured by projecting upward from the mold stand (6). 3. The mold placing apparatus according to claim 2, wherein the backward movement stopper (42) is provided on the mold placing table (6).
Fixed to the block (39) fixed to. 4. The mold placing apparatus according to claim 2, wherein the retreat preventing stopper (42) is provided on the mold placing table (6).
It is configured to be able to move up and down with respect to. 5. The mold placing device according to claim 2, wherein the driven portion (18) is provided so as to project downward and the driven portion (1) is provided.
8) An upward engaging groove (35) that engages with the above-mentioned push-quoting hook (31) is provided, and the hook (31) is engaged with the upper engaging position (X) and the lower engaging position (X). Y) that can be rocked vertically. 6. The mold placing device according to claim 5, wherein said driven portion (18) and said forward movement-prevented received portion (19).
And one of the operated members (17) provided with the retracted received portion (20).