JPH0732371A - Molding releasing apparatus - Google Patents

Abstract

PURPOSE:To effectively release a molding even if a slight gap exists between a product receiver and molds by injecting the air from an opening side of the receiver which can advance between opened molds toward between rear ends, and introducing the molding projected by a flow of the air into the receiver. CONSTITUTION:A holding plate 103, a chuck plate 104 and a chuck holder 105 are laminated, and a flange 106a of an inner cylinder 106 is held between the plate 104 and the holder 105. An outer cylinder 107 to be engaged with an outer periphery of the cylinder 106 is fixed to the holder 105, and a product receiver 108 of a double structure is formed. An air jet hole 106c is opened at an end of the cylinder 106 toward a rear end, and its air passage is formed at engaging surfaces of the cylinders 106, 17. Holes corresponding to a product receiver 108 are provided at the plate 1-4 and the holder 105, and a net material 120 is so provided as to block the holes. A molding 121 projected from molds is fed by the air, and collected by the metal gauze 120.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product take-out device provided in addition to a mold device of a molding machine.

[0002]

2. Description of the Related Art Conventionally, in order to reliably take out a molded product from a mold device of a molding machine, there is provided a device for taking out a molded product which is inserted between molds in a mold open state to grip the molded product and carry it to the outside. There is something. In such a take-out device, if a molded product is sandwiched by chuck jaws and mechanically gripped, the molded product is likely to be damaged or broken depending on the material. Therefore, for example, Japanese Patent Laid-Open No. 1-171827
As disclosed in Japanese Patent Laid-Open Publication No. 2000-331, there is a structure in which a suction pad is used to suck a part of a molded product. With this configuration,
It is necessary to consider the arrangement of the suction pad so that the pad is located at a position suitable for sucking the molded product. Therefore,
It is necessary to change the configuration of the chuck mechanism including the suction pad according to the shape of the molded product, and if the shape of the molded product is peculiar or too small, the suction may not be possible.

In order to solve these problems, Japanese Patent Laid-Open No.
No. 3-209913 discloses a structure in which a storage pocket portion larger than a molded product is provided, and the molded product is sucked by sucking the inside of the storage pocket portion through an air passage to make a negative pressure.

[0004]

According to the above conventional example,
In order to make the inside of the storage pocket a negative pressure and suck the molded product,
It is necessary that the end surface of the chuck block and the mold are in close contact with each other without a gap when the molded product is taken out. That is, a negative pressure is created in the storage pocket only when the chuck block and the mold are brought into close contact with each other. If there is a gap, a negative pressure cannot be created and the molded product cannot be adsorbed. Therefore, in order to manufacture the chuck block and the mold, high precision is required, and the moving mechanism for these is also required to have high precision. In addition, even if the precision during manufacture was good, wear could occur in the chuck block and mold due to long-term use,
Alternatively, if an error occurs during movement, the suction force of the molded product may gradually decrease, and eventually the molded product may not be reliably taken out. Further, a strong vacuum pump is required to create a negative pressure over a relatively large distance and a large volume from the storage pocket via the air passage, resulting in high cost.

It is an object of the present invention to provide a molded product take-out apparatus which can take out a molded product without requiring strict accuracy, and without fear that the suction force may decrease with time. is there.

[0006]

In order to achieve the above object, a device for taking out a molded product according to the present invention is a product having an opening capable of facing a projecting position of a molded product of a mold device for molding a resin product. A receiver, a first air injection hole provided near the opening for injecting air from the opening side to the other end side in the product receiver, and an air passage provided on the other end side However, it has a capturing means for capturing a molded product, and a drive means for moving the product receiver forward and backward with respect to the mold device in the mold open state of the mold device. This capturing means is composed of a mesh member.

Further, the product receiver has a double structure in which an inner cylinder and an outer cylinder are fitted together, and an air passage communicating with the air injection hole is formed between the inner cylinder and the outer cylinder. is there.

Further, when the product receiver is in a position retracted from the molded product protruding position, a pipe-shaped carrier pipe having openings at both ends through which the molded product is delivered from the product receiver, and a second air provided in the carrier pipe. It has an injection hole and a molded product accommodating member that receives a molded product that has been transported in the transport pipe by the injection of air from the second air injection hole.

[0009] The carrier pipe extends horizontally from one end for receiving the molded product from the product receiver, and then bends and descends. A notch is formed in this bent portion. A net member that allows the passage of air but catches the molded product is provided so as to close the sheet. The molded product accommodating member is located below the other end of the conveying pipe, and is capable of accommodating a molded product that is caught by the net member and then falls by its own weight.

The driving means can hold and convey the product receiver, can also hold a cassette type mold which is attached to and detached from the mold device, and can be inserted between the two molds in the mold open state. Is included. Further, it also has a storage means capable of storing the product receiver in a state of being removed from the arm means.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings. 1 and 2 show plan views of the entire injection molding machine including a molded product take-out device according to the present invention. This injection molding machine includes a mold device 2 in which a cassette mold 80 can be attached / detached and replaced, and a cassette mold change device 1 including a cassette mold stocker 5 and a reading unit 71.
A device for taking out a molded product including an arm means 4 which also serves as a part of the cassette mold exchanging device 1 and a product receiver 108, a storing means 101 and a molded product discharging means 102 which are shown in a state of being gripped by the arm means 4. It is equipped with 100.

First, a device for taking out a molded product according to the present invention will be described. As shown in FIGS. 3 and 4, the holding plate 1
03, a chuck plate 104 and a chuck holder 105 are stacked, and a product receiver 108 having a double structure including an inner cylinder (chuck nozzle) 106 and an outer cylinder (tip nozzle) 107 is fixed to these plates and taken out. The unit 100 is configured.

As shown in FIG. 5, the holding plate 103 has two elliptical notches 109 and a first flow path groove 110.
And a second flow path groove 111 are formed in the first flow path groove 110 and the second flow path groove 111, respectively.
2 and 113 communicate with each other, and seal rings 114 (see FIG. 3) are provided around the through holes 112 and 113 on the surface opposite to the flow channel forming surface. Further, a locking groove 115 that is gripped by gripping members 89 and 90 of the arm means 4 described later is provided. The holding plate 103 is provided with a hole portion 103a for reducing the weight. The chuck plate 104 shown in FIG. 6 is laminated on the flow path groove forming surface of the holding plate 103. The chuck plate 104 has holes 116 corresponding to a plurality of (four in this embodiment) product receivers 108.
Has been drilled. In addition, the second flow passage groove 122 is formed so as to surround the outer periphery of each hole portion 116 from the communication hole 117 communicating with the second flow passage groove 111 of the holding plate 103,
From the communication hole 118 communicating with the first flow channel 110 of the holding plate 103 to the first flow channel 123 so as to further surround the outside of the second flow channel 122 around each hole 116.
Is engraved.

Further, the chuck holder 105 shown in FIG. 7 is laminated on the surface of the chuck plate 104 on which the flow channel is formed. The chuck holder 105 has a hole 119 facing the hole 116 of the chuck plate 104.
Are formed, and the cutouts 119a are formed at four positions of the hole 119.
Is provided. Further, a net member 120 as a capturing means is arranged so as to close the hole 119.

A flange portion 106a is sandwiched between the chuck plate 104 and the chuck holder 105 to hold the inner cylindrical body 106 (see FIG. 8). This inner cylinder 1
While the inner peripheral surface of 06 and the hole 119 of the chuck holder 105 are circular, the second flow path groove 122 formed in the chuck plate 104 is formed in a substantially rectangular shape around the hole 116. ing. Therefore, as shown in FIGS. 3 and 4, a part of the second flow path groove 122 is exposed inside the inner cylindrical body, and when air is supplied, this exposed portion 122a functions as another air injection hole. Air spouts from here.

Four communicating holes 106b are bored in the flange portion 106a of the inner tubular body 106, and a first bored portion is bored in the front end portion of the inner tubular body 106 obliquely toward the rear end direction. An air injection hole 106c is provided.

An outer cylinder 107 is fixed to the front surface of the chuck holder 105. The outer cylindrical body 107 is adapted to fit on the outer periphery of the inner cylindrical body 106, and a groove 107b is continuously formed along the inner wall of the cylindrical body from a hole provided in the flange portion 107a. . The groove 107b is formed up to the vicinity of the tip of the tubular body, and both tubular bodies 106, 10 are provided.
It becomes an air passage which communicates with the first air injection hole 106c when 7 is fitted.

A hole 119 of the chuck holder 105, a hole 116 of the chuck plate 104, and an elliptical notch 109 of the holding plate 103 are provided at positions facing the product receivers 108, respectively. It is configured to communicate with each other and allow the passage of air.

Here, the flow of air will be described in detail. First, the flow of air at the time of taking in a molded product will be described. A tube 94 provided in the arm means 4 described later.
The compressed air flows into the through hole 112 of the holding plate 103 through the air hole 95a and the seal ring 114. Then, air flows into the first flow channel 123 of the chuck plate 104 through the communication hole 118 through the first flow channel 110 of the holding plate 103, and the air flows so as to surround the outer periphery of the hole 116. . Then, the inner cylindrical body 10
Communication hole 106 provided in the flange portion 106a of No. 6
Air is ejected from the first air ejection hole 106c through the air passage formed by the groove 107b provided in the outer cylindrical body 107 from the notch 119a of the b and the chuck holder 105. At this time, the first air injection hole 106c
Is obliquely formed toward the rear end, air flows inside the product receiver 108 from the front end (opening) to the rear end (other end), and the molded product 12 inside the product receiver 108
Attempt to transfer 1 from the leading edge to the trailing edge. And
The molded product 121 is captured by the net member 120 and held inside the product receiver 108.

Next, the flow of air when the molded product is discharged will be described. First, air flows from the tube 94 into the second channel groove 111 through the air hole 95b, the seal ring 114, and the through hole 113 of the holding plate 103. Then, the air flows into the second flow path groove 122 of the chuck plate 104 through the communication hole 117. This air is
It is jetted from the exposed portion 122a inside the inner cylindrical body 106 of the second flow path groove 122. In this way, the air is jetted from the rear end portion toward the opening end portion inside the product receiver 108, so that the molded product 121 held near the net member is discharged to the outside from the opening portion. .

In this embodiment, the take-out unit 100 having the above-mentioned structure is held by the arm means 4 of the cassette type mold exchanging device 1 which will be described later, and the die device 2 and the molded product ejecting means 102.
It is possible to move to the position.

Next, the molded product discharging means 102 shown in FIG. 9 will be described. A cylinder 125 is fixed via a support arm 124 to a frame 6 in which a cassette type mold exchanging device 1 and the like, which will be described later, are arranged, and a transfer pipe holding member 1 is attached to a slider 126 which can be moved in the horizontal direction in FIG.
27 is fixed. The transport pipe 128 is the joint section 1
29 and a pipe part 130, and the carrier pipe holding member 12
The joint portion 129 is fitted in the hole 127a of No. 7 and one end portion 119a is open. A pipe part 130 made of a flexible tube is tightly fitted to the end of the joint part 129 opposite to the end part 129a. Pipe part 130
Is extended horizontally to a proper position and then bent downward. At this bent portion, the pipe portion 130
Is partially cut out, and a mesh member 131 is arranged so as to close the cutout 130a. An end (the other end) 130b of the transfer pipe 128 bent downward is opened, and a plurality of small chambers 132 corresponding to the transfer pipes 128 are provided below the front end 130b.
A molded product accommodating member 132 having a is provided. A second air injection hole 133 for injecting air from the front end side toward the rear end side inside the transport pipe is provided in the pipe section 130 near the joint with the joint section 129. In FIG. 9, two transfer pipes 128 and two small chambers 132a of the molded product accommodating member are shown, but in reality, the tubular portion 108 of the take-out unit 100 is shown.
Corresponding to the above, four transport pipes 128 and small chambers 132a are provided in this embodiment.

Since the molded product discharging means 102 has the above-mentioned structure, as shown in FIG.
When the molded product discharging operation is performed in the take-out unit 100 as described above in a state where the product receiver 108 of the product receiver 108 is close to the storage opening 129a of the carrier pipe 128, the molded product 121 in the product receiver 108 enters the carrier pipe 128. . Therefore, when air is injected from the second air injection hole 133, the molded product 12
1 is transported in the transport tube 128. And the molded product 12
When 1 reaches the notch 130a, the air flows into the mesh member 1
It flows out from 31 to the outside. The molded product 121 is captured by the net member 131, then falls freely according to gravity and is housed in the molded product housing member 132. Since the transport pipe 128 and the small chamber 132a are provided corresponding to each product receiver, they can be accommodated separately.

Next, the mold apparatus 2 in this embodiment will be described. The mold device 2 shown in FIGS.
And is provided at a position (downward in the drawing) which makes an angle of about 90 ° with a cassette-type die stocker 5 described later about the rotation axis of the arm means 4. The mold 79 has a cassette-type mold insertion recess 79a to which the cassette-type mold can be attached / detached, respectively.
The cassette-type mold 80, which is provided in a direction perpendicular to the L surface) and can be inserted into the cassette-type mold insertion recess 79a, is integrally connected by connecting plates 81, 82a, 82b.
The detailed structure is shown in FIG. The connecting plate 81 is provided with notches 81a, 81b, 81c, 81d, and the notches 81a, 81b, 81c, 81d are fitted with the cassette type mold 80, and the cassette type mold is provided at the upper and lower parts thereof. Connecting plates 82a and 82b for preventing the falling off are fixed by bolts 97. Connecting plates 82a, 82
b is regulated and positioned by the pin 81e, and the notches 81a, 81b, 81c, 81d and the connecting plate 8 are provided.
The cassette-type mold 80 is held in a space defined by 2a and 82b with a slight gap (about 0.1 to 0.2 mm). In this way, the cassette-type mold 80 is connected, and in this connected state, as shown in FIG. 11, the cassette-type mold 80 is inserted into the cassette-type mold accommodating recess 79a, and a key (not shown) as an example of fixing means. Is inserted into a key groove (not shown) provided in parallel with the PL surface of the die 79 to be fixed. Then, by closing the mold 79 from the mold open state shown in FIG. 1, a molding material is injected into a cavity (not shown) formed between the cassette-type molds 80 facing each other to obtain a resin molded product. . In this case, the connecting plates 81, 82a, 82b are also used during injection molding.
Molding is performed by a cavity (not shown) provided in the cassette-type mold 80 while being attached.

Next, the cassette type mold exchanging device 1 will be described. The cassette type mold exchanging device 1 uses an arm means 4 having an arm 3 capable of gripping the above-mentioned take-out unit 100 and capable of advancing / retreating and rotating. The cassette type mold stocker 5 and the reading means. 71 is included. Therefore, first, the arm means 4 will be described below. In the following description, FIG.
The left-right direction is defined as the x direction, and the up-down direction is defined as the y direction.

As shown in FIG. 12, a central hole 7a is formed in a fixed table 7 fixed on the frame 6, and a ring-shaped support 8 is fixed to the central hole 7a. A rotary actuator 11 is supported on the ring-shaped supporter 8 via support arms 9a and 9b and a support plate 10. The rotation axis of the rotary actuator 11 is the support plate 1
Rotary table 1 through 0 and through coupling 12
It is fixed to 3. A ring-shaped rotary body 14 is provided on the lower surface of the rotary table 13, and the ring-shaped rotary body 1 is provided.
Reference numeral 4 is rotatably attached to the ring-shaped support 8 via a rotary bearing 15. Therefore, the rotary table 13 is rotated above the frame 6 by driving the rotary actuator 11.

A protrusion 13a is formed on the rotary table 13 in a protruding manner, and a rail 16 is provided on the upper surface of the protrusion 13a. A second base plate 17 is located above the rotary table 13, a pair of sliders 18 on the lower surface of the second base plate 17 are fitted to the rails 16, and a nut 19 is screwed to the screw shaft 20. A motor 21 (see FIG. 1) is connected to one end of the screw shaft 20, and although not described in detail, the screw shaft 20 is rotatably supported on the rotary table 13.
Therefore, the screw shaft 20 is rotated by the drive of the motor 21, and the second base plate 17 is guided by the rail 16 and the slider 18 via the nut 19 which is screwed with the screw shaft 20 and moves back and forth in the x direction of FIG.

As shown in FIG. 13, the second base plate 17
Projections 17a are formed on both sides of the projection 17a, and rails 22 are provided on the upper surfaces of the projections 17a. The first base plate 23 is located above the second base plate 17, and the slider 23 a provided on the lower surface of the first base plate 23 is fitted to the rail 22. In addition, on the upper surface of the second base plate 17, the rodless cylinder 2 as an example of a driving unit.
4 is provided, and the moving body 25 driven by the cylinder 24 is attached to the lower surface of the first base plate 23. Therefore, the moving body 25 is moved by the cylinder 24, and the first base plate 23 is guided by the rail 22 and the slider 24 to move back and forth in the y direction of FIG.

The arm 3 is located above the first base plate 23, and the slider 26 provided on the lower surface of the arm 3 is
The rail 27 is fitted on the upper surface of the first base plate 23. Further, as shown in FIG. 12, a screw shaft 30 is rotatably supported by a pair of support plates 28 and 29 provided on the upper surface of the first base plate 23, and the inside of the arm 3 is supported. The nut 31 provided on the screw shaft 3
It is screwed to 0. As shown in FIG. 13, a holder 32 is disposed on the upper surface of the first base plate 23 on the side of the support plate 28, and a motor 33 (see FIG. 1) is attached to the holder 32.
Is held. A pulley 34 is attached to the rotation shaft of the motor 33.
The pulley 35 is connected to the screw shaft 30 penetrating the support plate 28. A timing belt 36 is stretched between the pulley 34 and the pulley 35. Therefore, by driving the motor 33,
The screw shaft 30 rotates via the pulleys 34, 35 and the timing belt 36, and the nut 31 screwed together with the screw shaft 30.
Since the slider (see FIG. 12) moves, the arm 3 is guided by the slider 26 and the rail 27 to move in the y direction in FIG.

Next, the arm 3 will be described in detail. As shown in FIG. 12, the arm 3 has an arm main body 37 that has a nut 31 and moves by driving a motor 33, and a chuck portion 8 attached to the tip of the arm main body 37.
3 and 3. 2 at the rear end of the chuck 83
A crotch portion 83a (see FIG. 1) is formed, and the connecting shaft 40 is penetrated with the attachment member 39 (see FIG. 1) being sandwiched between the two crotch portions 83a. Four elliptical holes 83c are formed around the connecting shaft 40.
The fixing screw 42 is fastened to the mounting member 39 via the. In this state, the cylindrical portion 39a of the mounting member 39 is arranged in the recess of the arm body 37 so that the angle can be adjusted. Further, the elliptical hole 8 is also provided around the cylindrical portion 39a of the mounting member 39.
Four elliptical holes (not shown) similar to 3c are provided, and the fixing screws 43 are fastened to the arm body 37 through the elliptical holes. Therefore, with respect to the fixed arm main body portion 37, the chuck portion 83 has the fixing screw 42
Can be rotationally adjusted around the connecting shaft 40 within a range in which it can move within the elliptical hole 83c, and can be rotationally adjusted around the cylindrical portion 39a within a range within which the fixing screw 43 can move within an elliptical hole (not shown).

Next, the detailed structure of the chuck portion 83 will be described with reference to FIG. 14A and 14B show a chuck portion 83 capable of gripping a plurality of (four in this embodiment) cassette-type molds to be mounted on the mold 79 having the above structure. The chuck portion 83 is provided with a bifurcated portion 83a, a through hole 83b, and an elliptical hole 83c. Then, a "Sun" -shaped cassette type mold holding portion 83d is provided in the middle portion, and support beams 84 and 85 are provided in front of and behind it, respectively.
Is attached. Air cylinders 86 and 87 are attached to the support beams 84 and 85.
Grasping members 89 and 90 are attached to the drive shafts 86a and 87a of the actuators 6 and 87 via a joint 88. The cylinder 86 attached to the front support beam 84 and the cylinder 87 attached to the rear support beam 85 are
The drive shafts are mounted so as to face each other. The gripping members 89, 90 are wide when viewed from the top, and their ends are bent to form claws 89a, 90a. The claws 89a and 90a are formed so as to face each other. Each of the gripping members 89, 90 has four
Two shafts 91 are fixed, and this shaft 91
Are held slidably by bearings 92, respectively.
It should be noted that the chuck portion 83 has the above-mentioned holding plate 103.
Through the seal ring 114 when gripping
Air holes 95a and 95b are provided so as to communicate with 2, 113.

With the structure as described above, as shown in FIG. 14, when air is supplied to the cylinders 86 and 87 from the tube 94, the drive shafts 86a and 87a of the cylinders 86 and 87 are extended and guided to the shaft 91 and the bearing 92. While being held, the gripping members 89 and 90 move inward. In this way, the claw portions 89a and 90a sandwich the connecting plate 81,
The chuck portion 83 can hold four cassette-type molds 80 at the same time. It should be noted that it is possible to hold a cassette mold connected to the opposite surface of the chuck portion 83 with a similar connecting plate. Since the cassette mold 80 is held with a slight gap, it can be inserted into the recess 79a while being slightly moved when the arm 3 is mounted on the mold 79, and a slight error can be tolerated, so the work is easy. Is.

With the above-mentioned structure, the arm means 4 having the chuck portion 83 to which the cassette mold can be attached and detached
Can be rotated on the frame 6 by the operation of the rotary actuator 11, and can be moved back and forth in the x direction of FIG. 1 by the operation of the motor 21 and in the y direction of FIG. 1 by the operation of the cylinder 24 and the motor 33.

Further, the chuck portion 83 can be rotationally adjusted about the connecting shaft 40 and the cylindrical portion 39a. Therefore, the chuck part 83 can be moved back and forth with respect to the mold device 2 and the cassette-type mold stocker 5 to be described later, and the cassette-type mold 80 can be attached / detached and conveyed by being appropriately controlled by the user.

As shown in FIG. 14, the locking means 115 of the holding plate 103 is locked by the claws 89a and 90a so that the arm means 4 can hold the take-out unit 100. At this time, the air holes 95 a and 95 b communicating with the tube 94 are the through holes 11 of the holding plate 103.
It opposes 2,113 via the seal ring 114. Therefore, by supplying air from the tube 94, as described above, a flow of air is generated inside the product receiver 108, and the molded product 121 can be introduced or discharged. Further, by gripping the take-out unit 100 by the arm means 4 in this way, as shown in FIG. 1, the cassette type mold 80 of the mold device 2 and the product receiver 108 are opposed to each other so that a molded product is taken in. It is possible to set the state in which the end 129a of the molded product discharging means 102 and the product receiver 108 are opposed to each other to discharge the molded product.

As shown in FIG. 14, the chuck portion 83
Since a space is provided in the central portion of the cassette-type mold holding portion 83d, the weight of the cassette-type mold holding portion 83d is reduced, and when the cassette-type mold having the protrusion on the facing surface side is gripped, the protrusion is also reduced. Can be gripped without any support by letting it escape to the position of the space. Moreover, since the support beams 84 and 85 are separate components and are attached to the chuck portion 83 by using bolts or the like (not shown), manufacturing is simple.

Next, the cassette type die stocker 5 will be described. As shown in FIG. 15, the cassette-type die stocker 5 has a cylinder 63 as an example of a driving unit attached to the lower surface of the fixed table 7. This cylinder 6
The drive shaft 63a of No. 3 penetrates the fixed table 7 and projects upward. Above the fixed table 7, a storage shelf 64 is provided.
The drive shaft 63a of the cylinder 63 is in contact with the lower plate 64a of the storage rack 64. Also, the lower plate 64
A pair of guide shafts 65 are fixed to a, and the guide shafts 6 are
The reference numeral 5 extends through the bearing 66 and the fixed table 7 into the frame 6, and is connected by a plate member 67 fixed to the lower end thereof. A hole 67a is formed in the plate member 67, and the cylinder 63 is located in the hole 67a. A stopper 65a is fixed to the upper end of the guide shaft 65, and the lowering range of the guide shaft 65 is regulated by the stopper 65a and the bearing 66 contacting each other.

Explaining the storage shelves 64, in FIG. 15, side plates 64b are fixed to both ends of the lower plate 64a, and shelf plates 64c and 64d are hung over the side plates 64b to store the upper and lower two stages. The parts are provided so as to face each other, and the replacement cassette molds 69 can be housed therein. In FIG. 15, the cassette type mold is stored in the upper stage, and the lower stage is in a non-stored state. An upper plate 64e is attached to the upper end of the side plate 64b. A channel groove (not shown) is provided in each of the shelf plates 64c and 64d, and a fluid such as heated hot water or oil is circulated in the channel groove to store the cassette mold. 69 is preheated.

Due to this structure, the cylinder 63
When is driven and the drive shaft 63a moves back and forth, the storage rack 64 and the cassette mold 69 stored therein move up and down. At this time, the guide shaft 65 slides in the respective holes of the bearing 66, the fixed table 7, and the frame 6, and the plate member 67 slides on the outer periphery of the cylinder 63, while the storage shelf 64 is being slid.
Guide the vertical movement of.

As shown in FIGS. 12 and 16, reading means 71 is provided on the fixed table 7. In the reading means 71, a rectangular frame 73 is supported by the legs 72. A cylinder 74a is provided on the lower surface of the upper plate of the frame 73.
Is attached, and a bar code reader 77a is fixed to a moving body 75a driven by this cylinder via a mounting plate 76a. A cylinder 74b for driving the moving body 75b is attached to the upper surface of the lower plate of the frame 73, and a bar code reader 77b is fixed to the moving body 75b via a mounting plate 76b. Therefore, in the frame 73, the bar code readers 77a and 77b face each other and can move independently in the left-right direction in FIG. 16 (the direction in FIG. 1y). Further, the arm 3 can be inserted into the frame 73 with the cassette-type mold 80 attached, and at this time, the cylinders 74a and 74b are driven to scan the bar code readers 77a and 77b to scan the cassette. The barcode 78 (see FIG. 1) as identification information provided on the upper surface or the lower surface of the expression die 80 can be read. The bar code 78 indicates the type of each cassette-type mold, and the bar code readers 77a, 77a
The type of cassette mold can be determined by reading with 7b.

Next, the storage means 101 is shown in FIGS.
Will be described with reference to. A support plate 135 is fixed on a leg portion 134 standing upright on the fixed table 7, and a pair of support columns 136 is further provided thereon. This support pillar 136
A holding plate 137 is connected to the front surface of the holding plate 13 and
Cylinders 140 are provided above and below 7 via mounting members 138 and 139. The drive shaft of the cylinder 140 is
It is fixed to the grip claw 141 in the space surrounded by the mounting members 138 and 139. Therefore, when both cylinders 140 are driven in a state where the take-out unit 100 is arranged opposite to the holding plate 137, both grip claws 141 engage with the cutout portions 104a (see FIG. 6) of the chuck plate 104,
The take-out unit 100 is held.

The configuration of the injection molding machine of this embodiment is as described above, and its operation will be described below. First, the mold device 2 is closed by a mold clamping mechanism (not shown),
A resin product is molded by filling a resin into a cavity (not shown) formed by the cassette molds 80 attached to both molds 79 being in contact with each other. After this, the mold is opened when sufficient time has passed for the resin to cure. At the same time, the cylinder 24, the motor 33, the motor 21, etc. are actuated to drive the arm means 4, so that the product receiver 108 of the take-out unit 100 previously mounted on the chuck portion 83 of the arm 3 comes close to the cassette mold 80. Face each other (state of FIG. 1). Therefore, the molded product 121 is ejected by an ejection mechanism (not shown) and the tube 9
4, air (compressed air) flows into the first flow path groove 110 of the holding plate 103 through the air hole 95a, the seal ring 114, and the through hole 112. Then, this air is jetted from the first air jet hole 106c through the air passage including the communication hole 118, the first flow path groove 123, the communication hole 106b, the notch 119a, and the groove 107b (FIG. 3).
reference). The molded product 121 is transferred from the front end portion to the rear end portion inside the product receiver 108 by this air and is captured and held by the net member 120. Tube 94
The air supply to the through hole 112 is stopped.

After the molded product is held inside the product receiver 108 in this way, the cylinder 24 and the motor 33 are driven to retract the arm means 4 so that the product receiver 108 approaches the end 129a of the molded product discharge means 102. Face each other (see FIG. 9). Therefore, the tube 94, the air hole 95b,
Air is flown into the first flow path groove 111 through the seal ring 114 and the through hole 113, and is further jetted from the exposed portion 122a of the first flow path groove 122 through the communication hole 117. This air allows the molded product 121 to receive the product receiver 10
In the inside of 8, it is transferred from the rear end portion to the front end portion and enters into the transfer pipe 128. Therefore, the second air injection hole 13
When air is injected from 3, the molded product 1
When 21 moves in the transport pipe 128 and reaches the notch 130a, the net 21 is captured by the net member 131, and then falls and is housed in the molded product housing member 132. At this time, air flows out from the net member 120. In this embodiment, since four cassette-type molds 80 are used, they are separately stored in the four small chambers 132a of the molded product storage member 132. In this way, the molded product is produced by the cassette-type mold 80 that is previously mounted on the mold 79 of the mold device 2.

A case will be described in which the production of a certain product is completed and the production of another product having a different shape is started. First, as shown in FIG.
From the gripped state, the arm means 4 is driven so that the take-out unit 100 faces the storage means 101.
In that state, the supply of air to the cylinders 86, 87 is stopped, the claws 89a, 90a are separated from the locking groove 115, the take-out unit 100 is separated from the chuck part 83, and at the same time, the cylinder 140 of the storing means 101 is driven. Then, the grip claw 141 is inserted into the cutout portion 104a and the take-out unit 100 is held by the storage means 101.

In this way, when the chuck portion 83 is in a free state, the rotary actuator 11 is operated to rotate the rotary table 13, and then the cylinder 24, the motor 33,
The motor 21 is operated to bring the chuck portion 83 close to the die 79, the key (not shown) is pulled out, and the cassette die 80 is released from the die 79. At the same time, air is supplied to the cylinders 86 and 87, and the claw portions 89a and 90a
a is moved inward toward each other so that the connecting plate 81 is not easily inserted, and the cassette mold 80 is gripped by the chuck portion 83. Then, the motor 21 is operated to move the chuck portion 83 in the x direction, and the cassette mold 80 is completely ejected from the mold 79.

In this way, the cassette mold 80 is held by the arm 3, and the cylinder 24 and the motor 33 are operated to move the first base plate 23 and the arm 3 in the y direction to contract the arm means 4. In this state, the rotary actuator 11 is operated to turn the rotary table 13 clockwise by 9
Rotate 0 ° (see FIG. 19). That is, the longitudinal direction of the arm 3 is located in the x direction, and the entire arm means 4 is moved so that the chuck part 83 faces the cassette mold stocker 5. Then, the cylinder 24 and the motor 33 are operated again to operate the first base plate 23 and the arm 3
Are moved in the x direction to position the chuck portion 83 in the gap between the pair of storage portions of the cassette mold stocker 5. Then, the motor 21 is operated to move the second base plate 17 in the y direction to bring the chuck portion 83 close to the storage shelf 64 and position the cassette mold 80 in the lower storage portion in the unstored state. Then, the supply of air to the cylinders 86, 87 is stopped, the claws 89a, 90a are separated from the connecting plate 81, the cassette mold 80 is separated from the chuck 83, and placed on the shelf plate 64c. A cassette-type mold 69 for exchange is stored in advance in the upper storage portion of the cassette-type mold stocker 5, and the barcode 7 is read by the reading means 71.
The storage shelf 64 is shown in FIG.
It is set in a raised state as indicated by the chain line in 5.
This work will be described later.

When the cassette type mold 80 is placed on the shelf board 64c, the cylinder 63 is operated to lower the storage shelf 64 as shown in FIG. Then, the cassette-type mold 69 and the chuck section 83 housed in the upper housing section are at positions facing each other. So the cylinder 86,
87 is supplied with air to connect the claws 89a and 90a to the connecting plate 7
Insert the cassette type mold 69 into the chuck part 8
Hold by 3. Then, the motor 21 is operated to move the chuck portion 69 in the y direction, and the cassette mold 69 is completely ejected from the storage rack 64.

When the cassette-type mold 69 is held by the arm 3, the cylinder 24 and the motor 33 are operated and the first
In the state where the base plate 23 and the arm 3 are moved in the x direction and the arm means 4 is contracted, the rotary actuator 11 is operated to rotate the rotary table 13 by 90 ° in the counterclockwise direction, and the chuck portion 83 again causes the mold device to move. The entire arm means 4 is moved so as to face the direction 2. So cylinder 2
4 and the motor 33 to move the first base plate 23 and the arm 3 in the y direction to move the chuck portion 83 to the mold 79.
Located in the gap. Then, the second base plate 17 is moved in the x direction by the motor 21 so that the cassette mold 69 is inserted into the cassette mold insertion recess 79a of the mold 79. Then, the supply of air to the cylinders 86, 87 is stopped, the claws 89a, 90a are separated from the connecting plate 70, and a key is inserted to set the cassette mold 69 to the mold 7.
Fix at 9.

When the replacement of the cassette mold of one mold (movable mold) is completed as described above, the cassette mold of the other mold (fixed mold) is also replaced in the same manner. . In this way, the cassette-type mold 80 preliminarily mounted on the mold 79 is replaced with another cassette-type mold 69 housed in the cassette-type mold stocker 5.

Next, the preparatory work for the above cassette type mold exchanging process will be described. Before use, first of all, the storage section (shelf 64
c)), the user manually replaces the cassette type mold 69
To store. Then, the cylinder 63 is driven to raise the storage shelf (shown by a chain line in FIG. 15), and the arm 3 is driven to face the lower storage portion to hold the replacement cassette mold 69. After the replacement cassette type mold is pulled out from the lower storage section, the storage shelf 64 is lowered while the arm 3 is temporarily retracted from the storage shelf 64, and then the arm 3 is moved again toward the storage shelf 64. During this process, the replacement cassette mold 69 held by the arm 3 is read by the reading means 71.
While stopping the arm 3 when it is located inside,
Bar code reader 7 that operates cylinders 74a and 74b
7a and 77b are scanned. When the scanned barcode readers 77a and 77b face the barcode 78 (see FIG. 1) provided on the upper surface or the lower surface of the replacement cassette mold 69, the barcode 78 is read for replacement. The type of the cassette type mold 69 is discriminated and it is confirmed whether or not the proper cassette type mold is gripped. If the proper cassette mold 69 is gripped, the arm 3
And the replacement cassette type mold 69 are placed on the shelf board 64d. Similarly, the other replacement cassette-type mold 69 is also stored in the upper storage portion. In this way, the replacement cassette mold 6
In the state that 9 is stored in the upper storage portion of the cassette type mold stocker 5, the above-mentioned cassette type mold exchanging step is performed.
If the user manually stores the replacement cassette type mold in the upper storage portion, the work is labor-intensive and dangerous, so in this embodiment, the replacement cassette type mold is temporarily stored in the lower stage. After being manually inserted into the section, the arm means 4 is used to move to the upper storage section. As described above, the safety of the replacement cassette type mold is improved by manually inserting and removing the cassette type mold for replacement.

Since the replacement cassette type mold 69 is preheated by heating the storage rack 64, when the cassette type mold replacement work is completed, it is possible to immediately proceed to the injection molding process.

Since the molded product take-out device of the above-mentioned embodiment is a system for taking the molded product into the product receiver by the flow of air, regardless of the shape or size of the molded product,
Allows reliable removal of molded products. Moreover, unlike the case of performing vacuum suction, even if there is a slight gap between the product receiver and the mold when taking out the molded product, it can be reliably taken out by the flow of high-pressure air, and deterioration over time also occurs. Hateful.

Further, when the molded product is discharged as well, since it is discharged by the flow of high-pressure air, the work is easy and reliable, and a pump device for sending high-pressure air is used.
By preparing one, it can be used for both taking out and discharging the molded product, and the structure is simple and the cost can be reduced.

Further, by arranging the molded product discharging means for conveying the molded product by the flow of air in parallel, the molded products can be accommodated as a consistent operation. In particular, a part of the carrier pipe is bent and a cutout is provided in this bent part, and a net member that allows air to flow out and capture the molded product is provided in the cutout, and the molded product can be freely dropped from this bent part. Since it is configured to be housed in the housing member, there is no risk that the molded product is housed in the housing member at high speed while receiving high pressure and is damaged.

In this embodiment, when the type of the molded product is changed, the entire mold is not replaced, but only a lightweight and small cassette mold is used as a mold device, which is movable. Since an exchanging device for exchanging the cassette mold with one arm is provided and the take-out unit is held by the arm of the exchanging device, it is not necessary to separately provide drive means for the take-out device. Simple configuration and low cost.

The structure of the mold device or the cassette type mold exchanging device is not particularly limited. Further, the configuration of the storing means, the flow channel configuration of the air in the take-out unit, etc. can be freely changed.

In the above embodiment, the cassette mold is inserted and removed at right angles to the PL surface of the mold, but the present invention is also applicable to the case where the cassette mold is inserted and removed in parallel to the PL surface of the mold. The present invention is capable of various modifications such as possible.

[0058]

According to the present invention, the molded product can be reliably taken out regardless of the shape of the molded product, and even if there is a slight gap between the product receiver and the mold. Moreover, a vacuum pump is not required, and the cost can be reduced.

Further, by arranging the molded product discharging means for conveying the molded product by the flow of air in parallel, the molded products can be accommodated as a consistent operation. In particular, if a part of the conveying pipe is bent and a cutout is provided in this bent part so that air can flow out at the cutout and the molded product can be captured, the molded product is softly stored in the storage member by free fall. There is no risk of damage to the molded product.

Further, in the case of using a mold device in which the cassette mold is detachable, if the arm means of the exchanging device for exchanging the cassette mold is made to grasp the take-out unit, the take-out device is used. Since it is not necessary to separately provide the driving means, the structure is simple and the manufacturing can be performed at low cost.

[Brief description of drawings]

FIG. 1 is a reduced plan view of an embodiment of a molding machine including a molded product take-out device according to the present invention.

FIG. 2 is a reduced plan view illustrating an operating state of the molding machine shown in FIG.

FIG. 3 is an enlarged cross-sectional view of a main part of a molded product take-out device according to the present embodiment.

FIG. 4 is an enlarged front view of a main part of the takeout device shown in FIG.

5 is a front view of a holding plate of the take-out device shown in FIG.

6 is a front view of a chuck plate of the take-out device shown in FIG.

FIG. 7 is a front view of a chuck holder of the take-out device shown in FIG.

FIG. 8 is a perspective view of an inner cylindrical body and an outer cylindrical body of the take-out device shown in FIG.

FIG. 9 is a partially cutaway sectional view of a molded product discharging means.

FIG. 10 is a development view showing the connected state of the cassette mold.

FIG. 11 is a perspective view illustrating a method of mounting the cassette mold shown in FIG.

FIG. 12 is a side view showing a state in which the take-out unit is attached to the arm means.

13 is a rear view of FIG.

14 is an explanatory view of a chuck portion of the arm means shown in FIG.

FIG. 15 is a front view of a cassette-type die stocker.

FIG. 16 is a front view of reading means.

FIG. 17 is a front view of storage means.

FIG. 18 is a side view of the storage means.

FIG. 19 is a reduced plan view of the molding machine showing the cassette type mold exchanging operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 cassette type mold exchanging device 2 mold device 4 arm means 69,80 cassette type mold 79 mold 100 take-out unit 101 storage means 102 molded product discharge means 106 inner cylinder body 106c first air injection hole 107 outer cylinder body 107b Groove (air passage) 108 Product receiver 120 Netting member (capturing means) 121 Molded product 128 Conveying pipe 129a One end 130a Notch 130b Other end 131 Netting member 132 Molded product accommodating member 133 Second air injection hole

Claims (7)

[Claims] 1. A product receiver having an opening capable of facing a molded product projecting position of a mold device for molding a resin product; and a product receiver provided in the vicinity of the opening from the opening side in the product receiver. A first air injection hole for injecting air toward the end side; a capturing means provided on the other end side for permitting the passage of the air but capturing the molded product; And a drive means for moving the product receiver forward and backward with respect to the molded product projecting position in the mold open state. 2. The apparatus for taking out a molded product according to claim 1, wherein the capturing means is a mesh member. 3. The product receiver has a double structure in which an inner cylinder body and an outer cylinder body are fitted to each other, and the first air injection hole is provided between the inner cylinder body and the outer cylinder body. The device for taking out a molded product according to claim 1, wherein an air passage communicating with the molded product is formed. 4. A pipe-shaped carrier pipe having openings at both ends, through which the molded product is transferred from the product receiver when the product receiver is at a position retracted from the molded product protruding position, and the carrier pipe. 4. A second air injection hole, and a molded product accommodating member for receiving the molded product transported in the transport pipe by the injection of air from the second air injection hole. A device for taking out a molded article according to any one of 1. 5. The conveying pipe extends horizontally from one end for receiving the molded product from the product receiver, then bends and descends, and a notch is formed in the bent portion. , A net member that allows passage of the air but captures the molded product is provided so as to close the cutout portion, and the molded product accommodating member is located below the other end of the transport pipe, The device for taking out a molded product according to claim 4, wherein the molded product can be accommodated in the molded product which is captured by the net member and then falls by its own weight. 6. The drive means is capable of gripping and transporting the product receiver, and also capable of gripping a cassette mold attached to and detached from the mold device, and between the molds in a mold open state. The device for taking out a molded product according to any one of claims 1 to 5, comprising an arm means capable of entering. 7. The apparatus for taking out a molded product according to claim 6, further comprising a storage means capable of storing the product receiver in a state of being removed from the arm means.