JPH07266407A - Automatic operation control method in hollow molding machine - Google Patents

Abstract

PURPOSE:To reduce the cost and avoid a risk by a method wherein after completion of production, a temperature control for changing over next item data, a molding machine operation control, such as a replacement of a mold, a jig replacement control for transporting a transport jig for a mold and the like to a position for the ease of gripping, and a resin control for changing over a resin are brought under automatic control. CONSTITUTION:After completion of the production, a programmatic temperature decrease, a programmatic temperature increase based on next item data, and the like for a next molding are controlled in a temperature control means 100. In a molding machine operation control means 101, a resin in an extrusion screw is extruded, water in a mold is drained, a blow pin device is unloaded, a transport jig is mounted, a mold, a die, and a core are replaced, the transport jig is unloaded, and a blow pin device for a next molding is mounted. In a jig replacement control means 102, these are successively transported to a specific position for the ease of gripping with a specific action of the transport jig. In a resin control means 103, a resin supply is stopped and a resin change-over command is issued. The control is next left to a generalization control means 104.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic operation control method from the end of production to the start of next production in a blow molding machine for obtaining a blow molded resin product.

[0002]

2. Description of the Related Art A blow molding machine stores a parison supplied from an extrusion device in a mold and blows air from a driving device into the parison in the mold so that the mold is clamped by a mold clamping device. A hollow resin molded product having a cavity shape on the inner surface is obtained.

By the way, since there are various types of hollow resin molded products, such as large and small shapes, not only the respective molds but also molding jigs such as blow pins, dies and cores suitable for them are required.

For this reason, however, it is uneconomical to install a blow molding machine for each of these various types. Therefore, it is necessary to replace the molding jig of one blow molding machine and the mold. In general, various types are molded.

Conventionally, all of the molds and the molding jigs have been replaced manually by an operator, and there is no automatic replacement. Therefore, continuous operation of the blow molding machine was not possible.

[0006]

However, since the mold is a heavy object, the manual replacement work involves a risk of being injured if dropped even if a lifter or roller is used.

Further, the replacement of the die and the core requires cleaning of the resin in the mounting and dismounting work, which is a work with a risk of burns.

Replacing the blow pin is a work that requires attachment and detachment of water pipes and air pipes, and requires labor and time for centering work after attachment.

Therefore, from the start of production of the blow molding machine to the end of production, continuous production is possible without manual intervention, but it is important to automate the preparatory work from the end of production to the start of the next molding production. It is an issue, and no one has solved this issue yet.

A so-called robot can be used to automatically and mechanically prepare for the start of the next molding production from the end of the production, but the robot is expensive and requires a space, and is not suitable for a hollow molding machine. .

Therefore, the present invention provides a method for automating necessary preparations from the end of production in the blow molding machine to the start of the next molding production.

[0012]

An automatic operation control method in a blow molding machine according to the present invention is a program based on a program temperature decrease of resin and a program based on next-kind data after a planned production quantity is finished during molding operation of the blow molding machine. Temperature control to control temperature rise, etc., extruding and stopping the resin in the extrusion screw, reading the next product exchange data, draining water from the mold, removing the blow pin unit, and fixing the transfer jig Remove the die that has been discontinued with the mounting and transportation jig, remove the die and core, mount the die and core, mount the die for the next molding, remove the transportation jig, and blow pin for the next molding. Install the unit, align the blow pin, and
Molding machine operation management that controls the driving device to return to the origin, and the mold, die, core, blow pin unit for the next molding and the mold, die, core, blow pin unit to be replaced for the transportation. Jig replacement management that controls the sequential transfer to a specific position that is easy to grip with a predetermined operation of the tool, and resin management that controls the resin switching command based on the next product data and the next molding from the end of production It is characterized by automatic control until the start of production.

[0013]

[Function] Since the temperature control required for the start of the next molding production from the end of production, the replacement of molds and molding jigs, and the resin management are automatically performed, the continuous production operation of the blow molding machine can be performed completely unattended. Therefore, it is possible to avoid the risk of human intervention, reduce the cost, improve the productivity, and stabilize the quality.

[0014]

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, after the production quantity is finished during the molding operation of the blow molding machine, the temperature management control means 100 for controlling the program temperature decrease and the program temperature increase based on the next product type data is formed. .

When the planned production quantity for the current molding is over, the conditions of the resin for the next molding are read out, and if the raw material is different from the current one,
All the resin in the resin supply route must be completely extruded from outside the molding machine.

Since it is automatically charged into the crusher, if the parison continuously extruded is left as it is, this process cannot be easily performed. Therefore, while lowering the temperature of the residual resin in the molding machine after the end of production, while preventing carbonization due to thermal deterioration of the resin, the resin can be easily peeled off when the die / core is attached / detached in the next step. Also, since it is automatically charged into the crusher, it is automatically molded and treated as defective discharge.

When the residual resin in the raw material supply route, the hopper and the extruder cylinder is exhausted, the resin pressure at the tip of the extruder cylinder decreases, the lack of resin in the cylinder is detected, and automatic molding is stopped. Move to exchange.

Further, the resin in the extrusion screw is pushed out and stopped, the next product exchange data is read, the water in the mold is drained, the blow pin unit is removed, the transfer jig is attached, and the transfer jig is attached. After removing the die, remove the die and core, attach the die and core, attach the die for the next molding, remove the transfer jig, attach the blow pin unit for the next molding, and attach the blow pin. A molding machine operation management control means 101 for performing centering and control for returning the driving device to the origin is formed.

Further, the die for molding, die, core, blow pin unit for the next molding, the die to be replaced and the die, core and blow pin unit as the molding jig are put into a predetermined operation of the carrying jig. Accordingly, a jig exchange management control means 102 for performing control to sequentially transfer to a specific position that is easy to grip is formed.

Then, the resin management control means 10 for controlling the resin switching command based on the supply stop and the next kind data.
3 is formed.

Finally, the general control means 104 of the control means 100 to 103 is formed so that the next molding production is started when all the conditions of these control means 100 to 103 are satisfied. The control means 100, 103 can be easily formed by applying a well-known technique to the existing blow molding machine, but the control means 101, 102, 104 cannot be formed by the existing blow molding machine. , It is necessary to improve the existing blow molding machine.

Therefore, in order to complete the control means 101, 102, a method and apparatus for automatically changing the mold and the molding jig in the blow molding machine will be described in detail.

As shown in FIGS. 2 to 4, the extrusion device 2 can be moved up and down with a predetermined stroke toward the die 4 fixed to the mold clamping device 3 which moves downward on the base 1 of the hollow molding machine. It is installed on a regular road. The die 2a can be attached to and detached from the lowermost portion of the extrusion device 2 by rotating with a screw or the like, and the core 2b can be attached to or detached from the die 2a by rotating with a screw or the like.

By the combination of the die 2a and the core 2b, a parison having a required thickness is molded and extruded downward,
It is housed in a mold 4 fixed to the mold clamping device 3. Extruder 2
On the rear side, an extruder cylinder 2c for melting the resin to produce a parison, a hopper 2d for supplying the resin to the extruder cylinder 2c, and a motor 2e for rotating the extrusion screw in the extruder cylinder 2c are arranged. It is the same as the conventional one.

The driving device 5 adjacent to the extrusion device 2 is
A rail 6 is laid on the base 1, a support 7 on which the rail 6 is slidable is mounted, a vertical wall 7a is provided on the support 7, and a rail 8 is laid on the front surface in a direction orthogonal to the rail 6. The arm 9 is supported on the rail 8 so as to be horizontally movable, and the driving device 5 is fixed to the arm 9. Therefore, the driving device 5 is mounted on the base 1 along the rail 6 in the depth direction of the drawing and along the rail 8.
It can be moved to the left and right. It is to be noted that, as in the prior art, the driving device 5 is configured so that the driving head 10 can be moved up and down toward the mold 4.

The ball screw 5b is driven to rotate forward and backward by the servo motor 5a to move up and down the driving device 5, and the servo motors 5c and 5d are used to move back and forth and left and right to automatically control the movement in three dimensions. I can do it. A blow pin unit 11 is detachably attached to the driving head 10 of the driving device 5.

That is, a dovetail groove 10a having a connection port for an air pipe and a water pipe (not shown) is provided in the ceiling of the inner surface of the lower part of the driving head 10, and one block constituting the dovetail groove 10a is vertically movable. Pin unit 11
The chuck 10b is formed so that it can be grasped and released by controlling an air cylinder or the like. On the other hand, the blow pin unit 11 is provided with an insertion portion 11a having a trapezoidal cross section that engages with the dovetail groove 10a, and a pair of blow pins 11b is provided below the insertion portion 11a.
(Two pieces) and stripper plate 11c are attached.

On the right side of the base 1, a jig exchange table 12 is horizontally arranged and fixed at a predetermined height. As shown in FIG. 4, the jig exchange table 12 includes seven pallets 13a to 13a so that one vacant land 12a can be secured.
13 g are aligned vertically and horizontally, and placed so that they can be circulated and moved within the horizontal plane of the jig exchange table 12.

As shown in FIGS. 8 and 9, the plurality of pallets 13 are arranged on the pallet 13a by a blow pin unit table 40,
The transfer jig 43 and its mounting table 46 on the pallet 13b, the die mounting table 49 on the pallet 13c, the die / core removing jigs 51 and 52 on the pallet 13d, the die / core mounting jigs 55 and 56 on the pallet 13e, and the pallet 13f. Replacement mold 7
The blower unit for replacement 77 and the table 75 are mounted on the table 1, the table 70, and the pallet 13g, and the carrier is sequentially moved to a specific portion.

Next, the jig exchange table 1 will be described with reference to FIGS.
2 will be described in detail.

A rectangular movable frame 15 and a fixed frame 16 are placed on the upper surface of the table body 14. Movable frame 1
5 has a rail 17 laid on the upper surface of the table body 14 and has a roller 18 for rolling the rail 17 at the bottom portion, which is movable in the longitudinal direction. The fixed frame 16 is appropriately fixed to the upper surface of the table body 14.

Then, a hydraulic or pneumatic cylinder 19 is fixed to the lower portion of the movable frame 15, and its piston rod 2
The bracket 2 is attached to the inner side of the movable frame 15 on the short side.
0a and a rod 20b axially attached to the shaft 0a.
Therefore, the movable frame 15 can reciprocate in the longitudinal direction, and the movable frame 15 moves from the table body 14 to the front side (indicated by arrow F) in the stroke of one pallet to transfer the jig or the like to the driving device 5. Configure S.

Next, a structure for moving the pallet 13 in the movable frame 15 and the fixed frame 16 in the longitudinal direction will be described with reference to FIGS.

Inside each of the long sides of the movable frame 15 and the fixed frame 16, a plurality of rollers 21 are rotatably horizontally supported in the longitudinal direction at predetermined intervals to form a roller conveyor. Pallet 1 on this roller 21
3 is mounted. Therefore, if you press the pallet 13 when there is an empty space for one pallet, the pallet 13
Can be moved in the longitudinal direction of the frame 15 or the fixed frame 16 by rotating the roller 21.

Therefore, the pallet 13 is attached to the frames 15, 1
As a means for moving within 6, the upper surface of the table body 14 (the lower surface of the pallet 13) in the fixed frame 16
A cylinder 22 for hydraulic pressure such as hydraulic pressure or pneumatic pressure is fixed to the
The bracket 24 is connected to the end of the bracket. A vertical push rod 25 rising upward is supported by the bracket 24 so as to be able to contact the side surface of the pallet 13.

On the other hand, the pallet 13 in the movable frame 15
As a means for moving the cylinder 2, on the long side of the movable frame 15 between the fixed frame 16 and the cylinder 2 for hydraulic or pneumatic pressure on the table body 14 (the lower surface of the pallet 13).
6 is fixed, and the bracket 28 is connected to the end of the piston rod 27 that moves forward and backward from the cylinder 26. A vertical push plate 29 having a hook shape that rises upward is supported on the bracket 28 so as to be able to contact the side surface of the pallet 13.

Therefore, the pallet 13 in the fixed frame 16 can be moved to the rear side (arrow R) when the piston rod 23 is drawn into the cylinder 22 and the push rod 25 comes into contact with the side surface of the pallet 13.
Further, in the pallet 13 of the movable frame 15, the piston rod 27 is drawn into the cylinder 26 so that the push plate 2 is pushed.
When 9 comes into contact with the side surface of the pallet 13, it can be moved to the front side F. The push bar 25 and the push plate 29 allow the pallet 13 to move from the movable frame 15 to the fixed frame 16,
Also, when moving from the fixed frame 16 to the movable frame 15, the movable frame 15 and the fixed frame 16 are arranged at positions that do not interfere with each other.

Next, a structure for moving the pallet 13 between the movable frame 15 and the fixed frame 16 will be described with reference to FIGS.
Will be described with reference to.

A base 31 supporting a plurality of motor rollers 30 positioned below the roller 21 is provided at both ends of the movable frame 15 and the fixed frame 16 in the longitudinal direction so as to be able to move up and down. The motor roller 30 has an independent drive source, and each is rotatable. The base 31 is horizontally connected to an upper portion of a piston rod 33 that can move forward and backward from a hydraulic or pneumatic cylinder 32 fixed to the upper surface of the table body 14 and can be moved up and down.

Further, at least one motor roller 30a is provided between the movable frame 15 and the fixed frame 16, and the motor roller 30a is arranged above the roller 21. The motor roller 30a has the same structure as the motor roller 30. The motor roller 30a bridges the pallet 13 conveyed by the motor roller 30 from the movable frame 15 to the fixed frame 16 and from the fixed frame 16 to the movable frame 15.

Therefore, the pallet 13 placed on the roller 21 is lifted from the roller 21 when the base 31 which is lifted by the drive of the cylinder 32 reaches a predetermined height and the motor roller 30 becomes the same horizontal surface as the motor roller 30a. Supported by the motor roller 30 and
When the motor roller 30 rotates, the motor roller 30,
At 30a, it is possible to move from the movable frame 15 to the fixed frame 16 at the front end of the front side F, and from the fixed frame 16 to the movable frame 15 at the rear end of the rear side R.

Next, the blow pin unit table 40, the carrying jig 43 and the table 4 for placing them on the plurality of pallets 13 are mounted.
9, mold stand 50, die / core removal jigs 51, 5
2, the die / core mounting jigs 55 and 56, the replacement die 71 and the stand 70, and the replacement blow pin unit 77 and the stand 75 will be described with reference to FIGS.

The blow pin unit stand 40 is one in which two reinforced L-shaped members 41 are spaced apart from each other and faced each other on the pallet 13a, and a support having an open upper surface and left and right is provided upright. The blow pin unit 11 present can be inserted and supported between the separated members 41.

The carrying jig 43 has an insertion portion 44 which is engaged with and disengaged from the dovetail groove 10a of the driving head 10 and locked by the chuck 10b. Both sides (in the depth direction in the drawing) of the insertion portion 44 are provided. The hand 45 is swingably connected. Figure 10
As shown in FIG. 3, the air supply port 4 communicating with the air supply pipe opening to the ceiling inner surface of the driving head 10 is provided on the upper surface of the insertion portion 44.
6 is open on the upper surface.

The hand 45 includes the insertion portion 44 and the driving head 10.
It can be opened and closed by a fluid pressure cylinder 47 driven by the air supplied and discharged from the air supply port 46 communicating with each other. Pins 48 are provided at the lower end of the hand 45 so as to project toward the sides facing each other. The transfer jig table 49 is the pallet 13b.
A front-sided U-shaped support body having an upper surface and left and right sides opened is provided on the upper side, and the carrying jig 43 can be inserted and supported between the separated members.

The mold placing table 50 is such that L-shaped stoppers for fixing the four corners of the mold 4 which is currently fixed to the mold clamping device 3 are arranged on the pallet 13c. The mold 4 has both sides sandwiched by the hand 45, and has a hole 4a into which a pin 48 of the hand 45 is inserted.

The die / core removing jigs 51 and 52 are composed of the die removing jig 51 and the core removing jig 52, which are independently arranged, and are placed on the same pallet 13d as a pair.
Further, the die / core mounting jigs 55 and 56 are configured such that the die mounting jig 55 and the core mounting jig 56 are independently configured, and a pair of these is mounted on the same pallet 13e. Die / core removal jigs 51, 52 and die / core mounting jigs 55, 5
On the upper surface of 6, an arm 57 protruding vertically is provided,
The side surface thereof has a hole 58 into which the pin 48 of the hand 45 is inserted.

The die / core removing jigs 51 and 52 are tools for rotating the die 2a and the core 2b, which are currently in use, to be screwed out from the extrusion device 2, and the die / core mounting jigs 55 and 56 are. It is an instrument for holding a die and a core for the next molding and screwing the die and the core into the extrusion device 2.

The die / core removing jigs 51 and 52 and the die / core attaching jigs 55 and 56 each have a built-in cylinder driven by air, so that the rotating member holding the die or core rotates to perform the removing operation. Or, the reverse of the mounting operation is performed. Air supply in this case is performed by the mold clamping device 3. However, the rotating member holding the die or the core may be rotationally driven by the electric motor holding the battery.

Here, the die / core removing jigs 51, 52
1 and an example of the die / core mounting jigs 55 and 56.
1 to 13, FIG. 11 shows a common front structure of the die removing jig 51 and the die mounting jig 55, and FIG. 12 shows the core removing jig 52 and the core mounting jig 56.
FIG. 13 shows a common front structure of the die core removal jigs 51 and 52 and the die core mounting jigs 55 and 56.
2 shows a common plane configuration.

In the die removing jig 51 shown in FIG. 11 and the core mounting jig 56 shown in FIG. 12, a pair of gears 60 are rotatably separated from plate bodies 59 and 59a provided between a pair of arms 57. And a shaft 62 to which a ratchet wheel 61 (FIG. 13) meshing with both gears 60 is fixed is pivotally supported, and a lever 63 is horizontally connected to the shaft 62. Link 63 to lever 63
piston rod 64a of the fluid pressure cylinder 64 via a
Are connected. Therefore, the piston rod 64a
When reciprocating, the gear 60 rotates in the same direction.

As shown in FIG. 13, a hexagonal shaft hole 60a is formed in the center of the gear 60, and a slidable power transmission shaft 65 having a hexagonal cross section or a spline is vertically movable in the shaft hole 60a. Inserted into the power transmission shaft 65
A die fitting portion 66 is coaxially connected to the upper end of the. The die fitting portion 66 has a concave shape, and pins 66a are horizontally provided so as to face each other in the diametrical direction on the inner peripheral surface thereof. This pin 66
A recess that engages with a is formed on the outer peripheral surface of the die 2a (FIG. 1).

The core fitting portion for removing or mounting the core is replaced with the die fitting portion 66, and as shown in FIG. 12, a hexagonal convex head 66c is exposed to expose the power transmission shaft 65. It is rotatably arranged on the upper side in the axial direction. Then, a hexagonal recess for engaging and disengaging the head 66c is formed in the lower center of the core 2b (FIG. 1).

Therefore, the die fitting portion 66 and the head 6 are
When 6c rises from the bottom and fits into the die 2a or the core 2b, the pins 66a or the head 66c engage with the recesses to rotate the die 2a or the core 2b.
A spring 66b is disposed below the die fitting portion 66 so that the pair of dies 2a and the core 2b can be independently engaged with each other, and can be vertically moved independently. The same applies to the core fitting portion.

In order to vertically move the pair of die fitting portions 66 and the head 66c, a plate 68 is provided on the upper ends of four piston rods 67a which vertically move from a pair of left and right fluid pressure cylinders 67 arranged on the side surfaces of the arms 57. And a pair of die fitting portions 66 or heads 66c are rotatably mounted on the plate 68. The fluid pressure cylinder 67 is a unit in which a pair of cylinders are installed. Therefore, the die fitting portion 66 or the head 66c can move up and down while rotating.

An air supply block 69 for supplying air to the fluid pressure cylinders 64 and 67 is attached to the lower surface of the plate 59a. The air supply block 90 is provided to the mold clamping device 3 when the die / core removing jigs 51, 52 or the die / core mounting jigs 55, 56 are mounted on the mold clamping device 3 (FIG. 1). It has an air supply port 69a communicating with a port (not shown), and is distributed from the air supply port 69a to the fluid pressure cylinders 64 and 67 by piping.

The core mounting jig 56 shown in FIG.
Since the structure other than the torque limiter 90 is the same as that of the die removing jig 51, the same components are designated by the same reference numerals and duplicate description will be omitted. The torque limiter 90 is formed integrally with the gear 60, and when the gear 60 reaches a required tightening torque or more, it idles to prevent excessive tightening of the die 2a or the core 2b. Although not shown, the die mounting jig 55 is also provided with the torque limiter 90.

Next, the replacement mold stand 70 is almost the same as the mold stand 49, and the mold 7 for the next molding is formed on the pallet 13f.
A key-shaped stopper for fixing the four corners of 1 is fixedly arranged, and the metal mold 7 is mounted on the replacement metal mold stand 70.
It is the one that irremovably supports 1. The mold 71 has both sides sandwiched by the hand 45, and has holes 72 into which the pins 48 of the hand 45 are inserted.

The replacement blow-pin unit mounting base 75 is provided with a support body having two L-shaped members 76 facing each other on the pallet 13g so that the upper surface and the left and right sides are open, and this support body has a blow-pin unit for the next molding. 77 is inserted and supported between the separated members 76. This blow pin unit 77 is also similar to the blow pin unit 11 currently used, and has an insertion portion 78 having a connection port communicating with the air pipe and the water pipe of the driving head 10.

It should be noted that the extrusion device 2, the mold clamping device 3, the driving device 5, and the jig exchange table 12 which operate for jig exchange.
It goes without saying that a limit switch for detecting each position of (1), a detection means such as a sensor, etc. are arranged in each part, and a safety means for confirming these is provided.

Next, the automatic exchange operation will be described. When the planned production number in the molding operation is completed, all the resin in the extrusion device 2 is extruded and stopped to prepare for automatic jig replacement. Then, the control device 80 reads the data required for the next molding. Therefore, as shown in FIG. 14, first, the currently used mold 4 is drained, and then the removal operation of the currently used blow pin unit 11 is started.

That is, the support base 7 is retracted from above the mold 4 along the rail 6, and then the driving device 5 is moved along the rail 8 toward the jig exchange table 12 on the right side in FIG. On the other hand, in the jig exchange table 12, the movable frame 15 has already been moved to the transfer front side F by the operation of the cylinder 19, and the distance of one pallet 13 at the front end is fixed by the fixed frame 16.
Is more prominent. Therefore, the blow pin unit table 40 placed on the pallet 13a is located at the delivery station S.

Therefore, the driving device 5 approaches the blow pin base 40 and the blow pin unit 1 currently mounted is installed.
8 and 9, when the insertion portion 11a of No. 1 is inserted into the blow pin unit mounting table 40, the chuck 10b of the driving device 5 unlocks and the dovetail groove 10a opens, and the blow pin unit 11 is driven. It is released from the insert head 10 and placed on the blow pin stand 40. The driving device 5 is slightly retracted in the original direction to replace the blow pin unit 11 with the conveying jig 4.
Wait for 3 to wear.

Therefore, the movable frame 15 moves backward and is lined up with the fixed frame 16, and the pallet 13a placed on the blow pin unit stand 40 is placed in the vacant space 1 of the fixed frame 16.
Move to 2a. That is, when the cylinder 32 that supports the adjacent motor roller 30 on the front side F of the movable frame 15 and the fixed frame 16 operates and the motor roller 30 reaches the same level as the motor roller 30a, the pallet 13a lifts from the roller 21 and the motor roller 30.
Supported by. Therefore, when the motor rollers 30 and 30a respectively rotate, the pallet 13a moves to the movable frame 15
To the fixed frame 16. Therefore, an empty space is formed at the front end of the movable frame 15.

When the pallet 13a supporting the blow pin unit 11 moves to the fixed frame 16, the cylinder 3
2 is activated, the motor roller 30 is lowered to its original position,
Therefore, the pallet 13 a is supported by the rollers 21 of the fixed frame 16. Thus, the fixed frame 16 is filled with the four pallets 13a, 13g, 13f, 13e.

On the other hand, when the cylinder 26 is operated and the piston rod 27 is retracted in order to move the pallet 13b on which the carrying jig 43 is placed to the front end of the movable frame 15 where an empty space is formed, the push plate is pushed. 29 contacts the side portion of the pallet 13d on the rear side R of the movable frame 15 and pushes it toward the front side F. Therefore, the movable frame 1
A vacant space is formed at the rear end of 5.

Next, the fixed frame 16 is again attached to the vacant lot 1
Fixed frame 16 and movable frame 1 to make 2a
When the cylinder 32 on the rear side R of 5 moves to raise the base 31 and the motor roller 30 reaches the same level as the motor roller 30a, the pallet 13e located at the rear end of the fixed frame 16 is lifted from the roller 21 and the motor roller 30 is lifted. Supported by 30. Therefore, the motor roller 30,
When each of the 30a rotates, the pallet 13e moves from the fixed frame 16 to the movable frame 15, and an empty space is formed at the rear end of the fixed frame 16.

When the cylinder 22 is operated and the piston rod 23 is pulled in order to move the pallet 13f to the empty space at the rear end of the fixed frame 16, the front end of the fixed frame 16 is moved to the side of the pallet 13a. Push rod 2
5 come into contact with each other, whereby three pallets 13a, 13
g and 13f move toward the rear end of the fixed frame 16, and thus the vacant land 12a is formed at the front end of the fixed frame 16.
Is formed again.

In this way, the succeeding pallets 13b to 13g on the jig exchange table 12 are sequentially moved to the movable frame 1.
5, the movable frame 15 is moved toward the front end of the movable frame 15.
The pallets 13b to 13g located at the front end of the are transferred to the fixed table 16. Therefore, each pallet 13a
˜13 g can be circulated and moved in the jig exchange table 12 by the circulatory transfer means composed of the cylinders 19, 22, 26 and the motor rollers 30, 30a.

Therefore, in order for the driving head 10 to grip the transport jig 43 located at the front end of the movable frame 15, the cylinder 19 is actuated to push the movable frame 15 forward, and the transport jig 43 is delivered. Position at station S.

Next, the driving device 5 on standby moves toward the carrying jig 43, and the inserting portion 44 of the carrying jig 43.
Engages with the dovetail groove 10a, the chuck 10b operates, the transport jig 43 is attached to the driving head 10, the air supply pipe 46 communicates, and the hand 45 can be operated. The driving device 5 equipped with the carrying jig 43 returns to the initial driving position.

On the other hand, the mold clamping device 3 holding the mold 4 currently in use operates so that the mold 4 is located directly below the driving device 5 and stands by so that the mold 4 can be removed. To do.
The operation of the mold clamping device 3 is sufficient in the conventional manner of operating during molding.

Then, when both sides of the die 4 and the position of the hand 45 correspond, the driving device 5 descends toward the die 4,
When the hand 45 holds the mold 4 and the pin 48 of the hand 45 is inserted into the hole 50 of the mold, it is detected that the mold 4 is securely held, and the driving device 5 causes the mold 4 to move. Is lifted to the original position by being suspended by the transfer jig 43, and again moved toward the jig exchange table 12.

Then, the pallet 1 following the front end of the movable table 15 located at the transfer station S
The mold 4 is placed on the mold stand 49 on 3c. The driving device 5 stands by for the next gripping operation with the transfer jig 43 mounted in the vicinity of the jig exchange table 12.

The mold stand 49 on which the mold 4 is placed is transferred to the fixed frame 16 in the above-described manner, and the pallet 13d on which the die / core removing jigs 51 and 52 are placed is mounted on the front end of the movable frame 15. Transferred and its pallet 13
The movable frame 15 moves to the front side so that d is located at the delivery station S.

In order to mount the die / core removing jigs 51 and 52 of the transfer station S, the waiting driving device 5 approaches the die removing jig 51 and the carrying jig 4 is moved.
3, the die removing jig 51 is conveyed and fixed to the mold clamping device 3 as described above, the mold clamping device 3 moves to the lower part of the extrusion device 2, and part of the die removing jig 51. Moves up to the extrusion device 2, grips the die 2a and rotates to remove it.

In the die removing jig 51 in which a part of the die removing jig 51 holding the removed die 2a descends and returns to the original state, the die clamping device 3 returns to the original state and the driving device is driven. By being located at the lower part of
It is grasped by the hand 45 and raised, and returned to its original position on the jig exchange table 12 by the driving device 5.

When the removal of the die 2a is completed, the core removing jig 52 is then gripped by the carrying jig 43, and the core removing jig 52 is carried to the mold clamping device 3 and fixed there. The core removing jig 52 is moved to a lower part of the core and the exposed core 2b is grasped and rotated to remove it.

When a part of the core removing jig 52 holding the removed core 2b descends and returns to its original state, the mold clamping device 3 returns to its original state and is positioned below the driving device 5. As a result, the hand jig 45 of the carrying jig 43 grips and ascends, and the driving device 5 returns to its original position on the jig exchange table 12 and stands by.

A die removing jig 51 holding the die 2a
Also, the core removing jig 52 holding the core 2b is transferred to the fixed frame 16 in the same manner as described above, and the movable frame 15
The pallet 13e on which the die / core mounting jigs 55, 56 are placed is transferred to the front end of the pallet 13e.
The movable frame 15 moves to the front side so that is positioned at the delivery station S.

Therefore, the die / core mounting jig 54 is also conveyed and fixed to the mold clamping device 3 in the same manner as the die / core removing jigs 51 and 52 to mount the die and core for the next molding on the extrusion device 2. To do.

Then, the pallet 13e on which the die and the core are mounted and the remaining portion is placed is transferred to the fixed frame 16 in the same manner as described above, and the front end of the movable frame 15 has a die 71 for the next molding. The pallet 13f on which the mold stand 70 holding the above is placed is located. Then, the movable frame 1 for positioning the die 71 at the transfer station S
5 moves to the front side F.

Then, the die 71 is gripped by the carrying jig 43 of the driving device 5, and the driving device 5 moves to fix the die 71 to the mold clamping device 3. During this time, the movable frame 15 is retracted and aligned with the fixed frame 16, and the pallet 13
f, 13g, 13a are transferred to the fixed frame 16, and the pallet 13b is positioned at the front end of the movable frame 15.

After that, the driving device 5 is installed in the jig exchange table 1
Returning to step 2, the carrying jig 43 is placed on the carrying jig stand 46 placed on the pallet 13b moving to the front end of the movable frame 15 and stands by.

After transferring the pallet 13b on which the transfer jig 43 and the mounting table 46 are placed to the fixed frame 16 and transferring the pallets 13c, 13d, 13e and 13f sequentially,
Pallet 1 with blow pin unit 77 to be replaced
The movable frame 15 moves in order to transfer 3 g to the front end of the movable frame 15 and position the blow pin unit 77 at the transfer station S.

Therefore, the driving device 5 is used as the jig exchange table 1
2, the insertion portion 78 of the blow pin unit 77 is inserted into the dovetail groove 10a of the driving head 10, the air supply pipe and the water supply pipe communicate with each other, and the chuck 10b operates and locks.

Then, the driving device 5 returns to the driving position facing the mold clamping device 3. Driving device 5 returned to the driving position
After performing the centering operation between the blow pin 11b and the blow opening of the die 71 fixed to the mold clamping device 3 to adjust the position of the driving device 5, the preparation for the next molding is completed.

The replacement of the blow pin of the driving device 5, the height adjustment and the burr pressing mechanism will be described with reference to FIGS. 15 to 18, a locking block 50 for forming a dovetail-shaped dovetail groove 10a on the driving head 10 that can hang up and down from the arm 9.
4, 505 are provided. The locking block 504 is fixed to the driving head 10, and the locking block 505 is movably suspended in the vertical direction via an air cylinder 506 fixed to the driving head 10 to form the chuck 10b.

A substantially trapezoidal insertion portion 11a that engages with the dovetail groove 10a is provided so as to hang down. A center block 509 is connected to the insertion portion 11a via bolts 508 and 508, and left and right cylinders 510 and 510 are connected to the center block 509 so as to hang down. The cylinders 510 and 510 are supported by the center of the side surface of the center block 509, and the piston rod 51
At the lower end of 1,511 is a stripper plate 11c,
11c is connected horizontally.

A pair of cylinder chambers 513, 513 are formed in the center block 509 at positions corresponding to the piston rods 511, 511, and a nozzle body 515 connected to the blow pin 11b is housed in the cylinder chamber 513 so that it can be moved up and down. Has been done. The blow pin 11b extends downward through a stripper bush 516 fixed by being bridged between the stripper plates 11c.

A cylinder 518 is connected to the upper end of the nozzle body 515 through a piston rod 517,
A fluid such as oil or grease is stored in the cylinder 518 through a communication passage 520 formed in the center block 509. The communication passage 520 is a pair of cylinder chambers 5.
13, 513 communicate with each other, and the cylinder 518 is interlocked by the fluid flowing back and forth.

A manifold 521 is fixed to the upper part of the nozzle body 515, and the manifold 521 has a plurality of discharge ports 522 formed on the inner wall of the cylinder chamber 513.
Facing each. The discharge port 522 is an opening of a pipe line 523 formed in the center block 513, and the pipe line 523 opens on the upper surface of the insertion portion 11a. Insert 1
A pipe line 524 is formed in the driving head 10 so as to face the pipe line 523 opened on the upper surface of 1c.

The pipes 523 and 524 discharge air and cooling water, open to the respective manifolds 521 and communicate with the pipes housed in the nozzle body 515. Pipeline 52
O-rings are attached to the matching openings of 3,524 for sealing. Air and cooling water have a return path. A plurality of disc springs 525 are inserted on the lower end side of the nozzle body 515, and the disc springs 525 are accommodated in the cylinder chamber 513 and are supported by an end plate 526 penetrating the blow pin 11b in a vertically movable manner.

The operation of the above structure will now be described. In order to fix the driving mechanism to the driving head 10, the air cylinder 506 is driven to lower the locking block 505 to expand the dovetail groove 10a. The insertion portion 11a is slidably engaged with 10a to form the pipe lines 523, 52.
4 is stopped at the position where 4 matches, and then the air cylinder 506
Is driven to raise the locking block 505, the dovetail groove 10a contracts, and the insertion portion 11a is clamped and fixed to the driving head 10.

Then, as shown in FIGS. 16 and 18, when the pair of molds 4 with the parison of the mold clamping mechanism 3 sandwiched between the blow pins 11b move and stand still, the driving head 10 is lowered. Then, the blow pin 11b is inserted into the opening of the cutting plate 431 of each mold 4, and the cutting sleeve 11d of the blow pin 11b is brought into contact with the cutting plate 431.

Here, one cutting sleeve 11
If d does not properly contact the cutting plate 431, when the other cutting sleeve 11d contacts the cutting sleeve 431, the nozzle body 515 is pushed up and the cylinder 518 moves upward, and thus the cylinder 518. The fluid inside the communication passage 52
Through 0 into the other cylinder 518.

Therefore, the piston rod 517 of the cylinder 518 descends to push the nozzle body 515 downward, and the other blow pin 11b is pushed into the mold 4,
The cutting sleeve 11d is correctly brought into contact with the cutting plate 431. Thus, the pair of blow pins 11b and 11b are automatically adjusted, the cutting sleeve 11d is pressed against the cutting plate 431 with a uniform force, and the burr 200 is cut.

Then, air is discharged from the blow pins 11b, 11b to the parison in the mold 4 for blow molding. A burr 200 protruding from the cutting plate 431 is formed. Then, the cylinder 510 is driven to lower the stripper plate 11c toward the cutting plate 431 and press the burr. Cutting plate 4
Since the burr 200 exposed from 31 is still soft only by air cooling, it is pressed against the stripper plate 11c and the cooled mold 4 to be crushed and cooled.

Then, the stripper plate 11c is slightly raised to separate the cutting sleeve 11d from the cutting plate 431, and then the driving head 1 is again driven.
When 0 is raised, the burr 200 rises while being attached to the blow pin 11b. The burr 200 is dropped by the stripper bushing 516 as the stripper plate 11c descends. The burr 200 is completely cooled, is not attached to the molded product 133, has no adverse effect, and is not scattered in all directions, and is appropriately removed to prepare for the next molding operation.

Next, an automatic centering device for completing the control means 104 will be described with reference to FIGS. 19 to 21. As shown in FIG. 19, the blow plate 11 b and the stripper bush 5 are attached to the cutting plate 431 of the mold 4.
16 is inserted, and the blow pin 11b has a cavity 401.
Has been inserted into the mouth of. The centering bush 500 is a conical cylindrical body fixed to the stripper plate 11c, penetrates and supports the blow pin 11b, and has a conical outer peripheral surface 501 formed on the lower outer peripheral surface protruding from the stripper plate 11c. . The conical outer peripheral surface 501 is a surface parallel to the conical inner peripheral surface 432 of the cutting plate 431. Then, as shown in FIG. 20, the cutting plate 431 is provided with a plurality of ejection ports 405 that are opposed to each other in the diametrical direction. The ejection port 405 opens to the conical inner peripheral surface 432 of the cutting plate 431.

Pipe lines 407 formed in the mold 4 are connected to the respective jet outlets 405, and as shown in FIG. 21, these pipe lines 407 respectively have pressure sensors 408 and air. Fluid supply sources 409 are connected to each other. The pressure sensor 408 may be replaced with a flow rate sensor having an analog output.

Next, a structure for swinging the blow pin 11b in the X-axis and Y-axis directions will be described. As shown in FIGS. 22 and 23, two servo motors 619 and 620 (actuators) are provided on the upper portion of the main body 514 of the driving device 5, and each of the servo motors 619 and 620 has a coordinate axis table 617 on the X-axis. It is for moving in the X direction and the Y-Y axis direction. Four guide shafts 615 that hang down are provided at the bottom of the main body 514 of the driving device, and a movable table 616 is engaged with the guide shafts 615 so that it can be moved up and down by an air cylinder 634.
6 through the support member 635, the coordinate axis table 617 becomes X.
It is supported so as to be movable in the axial direction and the Y-axis direction. The coordinate axis table 617 is provided with a pair of blow pins 11b so as to hang down. Reference numeral 636 is an air cylinder or a servomotor motor that moves the stripper plate 431 up and down.

The X-axis servo motor 619 has a structure shown in FIG.
As shown in FIG. 7, the spline shaft 621 is attached, and the rotation transmitted to the spline shaft 621 is transmitted to the rotation shaft 622 supported by the vertical movement frame 616 via a timing belt / pulley, etc. It is transmitted to the rotating shaft 625 via the gears 623 and 624. The rotating shaft 625 is formed with a spline and supports the supporting member 6
Reference numeral 26 is slidable along the spline in the Y-axis direction (left-right direction in FIG. 23).

The rotation transmitted to the rotary shaft 625 is applied to the pulley 6
27, 628, a timing belt 629, etc., and is transmitted to a rotary shaft 630, and further, as shown in FIG. 22, is transmitted to a rotary shaft 633 via helical gears 631, 632, and this rotary shaft 633 is supported. It is supported by the member 626. The screw part formed on the rotary shaft 633 has a ball screw.
The coordinate axis table 617 is attached via a (not shown), and the coordinate axis table 61 is rotated by the rotation of the rotary shaft 633.
7 moves in the X-axis direction (left-right direction in FIG. 22).

The rotation of the Y-axis servo motor 620 causes the supporting member 635 to rotate in the Y direction via a gear tooth row, a rotary shaft, and the like (not shown).
The coordinate axis table 617 is moved in the Y-axis direction along with the support member 635 by moving the coordinate member in the axial direction. The backlash in the meshing relationship is eliminated by utilizing the biasing force of the spring as in the conventional case. Further, the vertical movement frame 616 vertically moves along the guide shaft 615 supported by the support member 514.

Next, the operation of the above configuration will be described based on the flowchart of automatic centering shown in FIG. _First , the driving origin position and the mold clamping origin position are confirmed (S ₁ ), the lamp blinks during the centering of the driving (S ₂ ), and the stripper plate 431 moves at a low speed (S) together with the blow pin 11 c of the driving device.
₃₎ and the hammering down (S _4), the blow pin 11c at the detection position
Stops descending (S ₅ ). Therefore, the state shown in FIG. 19 is obtained.

Then, air is ejected from the ejection port 405 (S ₆ ). That is, when the centering bush 500 is inserted into the cutting plate 431, air is sent to the conduit 407 by the fluid feeder 409, and air is ejected from the ejection port 405. The surface 501 is discharged to the outside through the gap between the centering bush 500 and the conical inner peripheral surface 432 of the cutting plate 431. At this time, if the centering bush 500, that is, the blow pin 11c is not located at the center of the cutting plate 431, the back pressure or flow rate of the air ejected from each air ejection port 405 will be different. Instead of the centering bush 500, air may be blown to the outer peripheral surface of the blow pin 11c to measure the back pressure or the flow rate.

The pressure or flow rate of this air is measured by the pressure sensor 40.
8 or the flow rate sensor, the detected value is input to the programmable controller 618 (FIG. 22), the difference between the detected values is calculated, the servo motor is operated so that the difference becomes 0, and the blow pin 3 is turned on. XX direction or Y
Swing in the -Y direction. Therefore, the blow pin 11c
Is located at the center of the conical inner peripheral surface 432 of the cutting plate 431.

Thus, the values of the pressure sensors of X ₁ and X ₂ are taken in, the servo controller is moved in the X direction by an amount corresponding to the difference (S ₇ ), and the values of the pressure sensors of Y ₁ and Y ₂ are taken in, by an amount corresponding to the difference between Y direction moving the servo controller (S _8), to further lower the hammering device for confirmation (S _9),
It is determined whether the values of X ₁ , X ₂ , Y ₁ and Y ₂ are within the allowable values (S ₁₀ ). The sensor characteristics of X ₁ , X ₂ , Y ₁ , and Y ₂ are input to the pressure sensors. Within allowable value (YES)
If so, the centering is completed and the lamp is turned on (S ₁₁ ), the stripper plate 431 rises (S ₁₂ ), the blow pin 11 c rises, and the driving centering ends (S ₁₃ ).

[0111] If within the allowable value (NO), return to the step S _7, is configured to follow the path of the subsequent step S ₈ to S _13.

Thus, since the blow pin 11c is located at the center of the conical inner peripheral surface 432 of the cutting plate 431, the shape of the mouth of the molded product may be deformed.
The screw threads or the like that should be formed on the outer peripheral surface of the mouth do not collapse.

[0113]

According to the present invention described above, since the preparations necessary for the next molding production are automated after the production is completed, the continuous molding of the next molding of different kinds is possible, and the next molding production is completely unmanned. Can be started, the cost can be reduced manually and the risk can be avoided, the production amount can be improved, and the quality can be stabilized.

[Brief description of drawings]

FIG. 1 is a schematic flowchart of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a side view showing an embodiment of the present invention.

FIG. 4 is a plan view showing an embodiment of the present invention.

FIG. 5 is a plan view showing a jig exchange table of the present invention.

FIG. 6 is a sectional side view of a jig exchange table.

FIG. 7 is a sectional front view of a jig exchange table.

FIG. 8 is a plan view of jigs arranged on a jig exchange table.

FIG. 9 is a side view of the jigs arranged on the jig exchange table.

FIG. 10 is a front view of a carrying jig.

FIG. 11 is a partial sectional front view of a die / core removing jig.

FIG. 12 is a partial sectional front view of a die / core mounting jig.

FIG. 13 is a common plan view of a die / core removing jig and a die / core mounting jig.

FIG. 14 is a jig exchange flow chart displayed on the monitor screen of the control device.

FIG. 15 is a cross-sectional view showing details of a driving device.

FIG. 16 is a partial sectional side view of the driving device.

FIG. 17 is a partially sectional plan view of the driving device.

FIG. 18 is a sectional side view of the driving device.

FIG. 19 is a sectional front view of the main part of the centering mechanism.

FIG. 20 is a partial plan view of FIG.

FIG. 21 is a configuration example diagram of an air jet passage

FIG. 22 is a front view of the driving device.

FIG. 23 is a side view of the driving device.

FIG. 24: Automatic centering stroke flow chart

[Explanation of symbols]

 100 ... Temperature management control means 101 ... Molding machine operation management control means 102 ... Jig replacement management control means 103 ... Resin management control means 104 ... General control means

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] June 1, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0097

[Correction method] Change

[Correction content]

Here, one cutting sleeve 11
When d does not properly contact the cutting plate 431, when the other cutting sleeve 11d contacts the cutting plate 431, the nozzle body 515 is pushed up and the cylinder 518 moves upward, and thus the cylinder 518. The fluid inside the communication passage 52
Through 0 into the other cylinder 518.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0100

[Correction method] Change

[Correction content]

Therefore, the driving head 10 is slightly raised to attach the cutting sleeve 11d to the cutting plate 4.
When the driving head 10 is lifted again after being separated from 31, the burr 200 is lifted while being attached to the blow pin 11b. The burr 200 is dropped by the stripper bushing 516 as the stripper plate 11c descends. The burr 200 is completely cooled, is not attached to the molded product 133, has no adverse effect, and is not scattered in all directions, and is appropriately removed to prepare for the next molding operation.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0101

[Correction method] Change

[Correction content]

Next, an automatic centering device for completing the control means 104 will be described with reference to FIGS. 19 to 21. As shown in FIG. 19, the blow pin 11 b and the centering bush 516 are inserted into the cutting plate 431 of the mold 4, and the blow pin 11 b is inserted into the mouth of the cavity 401. Kokorode bush 5 16 is a cylindrical body of conical shape fixed to the stripper plate 11c,
A conical outer peripheral surface 501 is formed on the lower outer peripheral surface that penetrates and supports the blow pin 11b and projects from the stripper plate 11c.
Are formed. The conical outer peripheral surface 501 is a surface parallel to the conical inner peripheral surface 432 of the cutting plate 431. Then, the cutting plate 431 is shown in FIG.
As shown in FIG.
5 are provided. The ejection port 405 opens to the conical inner peripheral surface 432 of the cutting plate 431.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0103

[Correction method] Change

[Correction content]

Next, a structure for swinging the blow pin 11b in the X-axis and Y-axis directions will be described. As shown in FIGS. 22 and 23, two servo motors 619 and 620 (actuators) are provided on the upper portion of the main body 514 of the driving device 5, and each of the servo motors 619 and 620 has a coordinate axis table 617 on the X-axis. It is for moving in the X direction and the Y-Y axis direction. Four guide shafts 615 extending downward to the lower portion of the main body 514 of the hammering device is provided vertically movably engaged with the movable table 616 starvation Linda 634 to the guide shaft 615, the support member 635 to the movable table 616 The coordinate axis table 617 is movably supported via the X-axis direction and the Y-axis direction. The coordinate axis table 617 is provided with a pair of blow pins 11b so as to hang down. 636 is an air cylinder or Sir Vomo over motor vertically moving the stripper plate 431.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0105

[Correction method] Change

[Correction content]

The rotation transmitted to the rotary shaft 625 is applied to the pulley 6
27, 628, a timing belt 629, etc., and is transmitted to a rotary shaft 630, and further, as shown in FIG. 22, is transmitted to a rotary shaft 633 via helical gears 631, 632, and this rotary shaft 633 is supported. It is supported by the member 635 . A coordinate axis table 617 is attached to a screw portion formed on the rotary shaft 633 via a ball screw (not shown), and the coordinate axis table 61 is rotated by the rotation of the rotary shaft 633.
7 moves in the X-axis direction (left-right direction in FIG. 22).

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0107

[Correction method] Change

[Correction content]

Next, the operation of the above configuration will be described based on the flowchart of automatic centering shown in FIG. _First , the driving origin position and the mold clamping origin position are confirmed (S ₁ ), the lamp is blinked during the centering of the driving (S ₂ ), and the stripper plate 11 c is moved at a low speed (S) together with the blow pin 11 b of the driving device.
₍₃ )), the driving is lowered (S ₄ ), and the stripper presses at the detection position.
Over preparative 11c of the blow pin 11b down to stop _(S 5). Therefore, the state shown in FIG. 19 is obtained.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0108

[Correction method] Change

[Correction content]

Then, air is ejected from the ejection port 405 (S ₆ ). That is, when Kokorode bush 5 16 is inserted into the cutting plate 431, the feed air at fluid supplier 409 to the conduit 407, the ejecting air from spout 405, air is the Kokorode bush 5 16 cone It strikes the Katachigaishu surface 501, and is discharged from the gap between the Kokorode bush 5 16 and conical inner peripheral surface 432 of the cutting plate 431 to the outside. At this time, Kokorode bush 5 16, i.e. blow pin 11 b unless in the center of the cutting plate 431, the back pressure or the air ejected from the air ejection ports 405 will be the flow rate is different. Incidentally, instead of the Kokorode bush 5 16 may be a back pressure or flow measurement by blowing air on the outer circumferential surface of the blow pin 11 b.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0110

[Correction method] Change

[Correction content]

Thus, the values of the pressure sensors of 408A and 408C are taken in , and the X direction and the Y direction are moved by the amount corresponding to the difference.
Move the servo controller of the (S ₇ ), 408B and 408D
Takes in the value of the pressure sensor of, and in the X direction according to the difference
And move the servo controller in the Y direction (S ₈ ), and further lower the driving device for confirmation (S ₉ ), 408A to 408
It is determined whether the value of D is within the allowable value (S10).
The sensor characteristics are input to the pressure sensors 408A to 408D . If within the tolerance (YES), to complete the heart and out lamp lights (S ▲ 11 ▼), stripper plate 431 is raised (S ▲ 12 ▼), blow pin 11 b is increased Dakomikokorode Ends (S ▲ 13
▼).

[Procedure Amendment 9]

[Document name to be amended] Statement

[Name of item to be corrected] 0112

[Correction method] Change

[Correction content]

[0112] Thus, by blow pin 11 b is located at the center of the conical inner circumferential surface 432 of the cutting plate 431, or deformation occurs in the shape of the mouth portion of the molded article,
The screw threads or the like that should be formed on the outer peripheral surface of the mouth do not collapse.

[Procedure Amendment 10]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 19

[Correction method] Change

[Correction content]

FIG. 19

[Procedure Amendment 11]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 20

[Correction method] Change

[Correction content]

FIG. 20

[Procedure Amendment 12]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 21

[Correction method] Change

[Correction content]

FIG. 21

Claims (1)

[Claims] 1. A temperature control for controlling a program temperature decrease of a resin and a program temperature increase based on the next-kind data after the planned production quantity is finished during the molding operation of the blow molding machine, and extruding the resin in the extrusion screw. Stop, then read the next product exchange data, drain the water inside the mold, remove the blow pin unit, attach the transfer jig, remove the mold that was discontinued with the transfer jig, and remove the die and Remove the core,
Control to attach the die and core, attach the die for the next molding, remove the transport jig, attach the blow pin unit for the next molding, center the blow pin, and return the driving device to the origin. The operation control of the molding machine is performed and the mold, die, core, blow pin unit for the next molding and the mold, die, core and blow pin unit to be replaced are gripped according to the predetermined operation of the transfer jig. Perform automatic control from the end of production to the start of next molding production by jig replacement management that controls transfer to specific positions that are easy to perform, and resin management that controls resin switching commands based on the next product data and resin supply stop An automatic operation control method in a blow molding machine.