JP2001170942A - Molded article taking-out apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molded article taking-out apparatus capable of certainly sucking and holding a minute molded article to certainly discharge the same without scattering the same. SOLUTION: The molded article taking-out apparatus is equipped with a molded article taking-out tool 6, wherein air permeable receiving members 9 are provided in the opening parts 7 formed in the tool main body 8 attached and held to the leading end of a movable taking-out arm 3 and molded articles M are sucked and held by the receiving members 9 and discharged by ejecting air from the opening parts 7, and an air permeable molded article discharge part 13 receiving the molded articles M discharged from the molded article taking-out jig 6 and capable of allowing ejected air to escape.

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 which sucks and retains a molded product from a molding die of a resin molding apparatus by a jig body attached to a movable arm and takes it out to a molded product discharge section.

[0002]

2. Description of the Related Art Conventionally, various industrial robot apparatuses have been used in various manufacturing machinery such as a resin molding apparatus. For example, in a resin molding apparatus, a molded article removal apparatus that chucks and removes a resin molded article is used. In this molded product removal device, after resin molding, the arm is inserted between the opened molds, and the resin molded product is gripped by the hand provided on the molded product removal jig provided at the tip of the arm, or is suctioned by air. The mechanism sucks and holds the product and takes it out, and takes out the molded product to a molded product discharge section such as a pallet.

In particular, when a molded product is a minute component, it is difficult to remove the molded product with individual suction chucks. Therefore, a molded product removal jig is often provided with an air suction mechanism.
For example, a molded product take-out head using an air ejector element disclosed in Japanese Patent Application Laid-Open No. 8-169020 has been proposed. The molded product take-out head has a molded product suction member having a suction port closed by a ventilation screen that suctions and holds the molded product on the head substrate, and generates a negative pressure in the suction port of the molded product suction member by an air ejector action. And a negative pressure generating mechanism for generating the pressure.

The working port of the cylindrical air ejector element provided in the negative pressure generating mechanism communicates with the suction port of the molded product suction member, and the sucked air is exhausted from the outlet. When compressed air flows into the compressed air circulation hole of the air ejector element, the air is ejected from the suction port of the molded product suction member by the air ejector action, and an air flow is generated from the working port of the air ejector element to the blowout port. Thereby, the molded product is sucked from the suction hole and sucked and held on the ventilation screen. To remove the suction-held molded product, stop the operation of the negative pressure generation mechanism with the head facing downward, or
Alternatively, an ejection air ejector element is provided in the opposite direction adjacent to the suction air ejector element to eject air to discharge a molded product to a molded product discharge portion such as a pallet.

[0005]

Problems to be Solved by the Invention
In the molded product take-out head disclosed in Japanese Patent Application Publication No. 020, when a minute molded product is sucked and held on the ventilation screen, the operation of the negative pressure generating mechanism is stopped only and the molded product and the ventilation screen or the molded product and the molded product suction member are separated. In some cases, the molded product did not fall on the pallet due to static electricity generated during the process.
In addition, if the air ejector element for ejection is provided adjacent to the air ejector element for suction, the size of the molded product take-out head is increased, and minute molded products are discharged onto the pallet and blown up by air. And could be scattered. The ejector head of the molded product adopts the ejector system. The air (primary airflow) flowing from the compressed air circulation hole of the air ejector element and the air (secondary air) flowing from the working port of the air ejector element to the outlet are used. Airflow) near the working port, causing a backflow and reducing the efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a molded product take-out apparatus capable of reliably adsorbing and holding a small molded product and discharging the molded product without scattering.

[0007]

The present invention has the following arrangement to achieve the above object. That is, the jig body is attached and held at the tip of the movable arm, and the molded product is sucked and held by a breathable receiving member provided in an opening formed in the jig body, and air is ejected from the opening to suck the molded article. A molded product removal jig capable of discharging the retained molded product, and a molded product discharge portion having a gas permeability capable of receiving the molded product discharged from the molded product removal jig and allowing the blown air to escape. Features.

The molded product removal jig is configured such that air pressure feeding means for feeding air from a middle of a cylinder having one end connected to the jig main body and an opening at the other end of the cylinder are opened and closed. Switching means for switching the flow of the air sent from the air pressure feeding means to suck air from the opening of the jig main body and to eject air from the opening. In addition, the molded product take-out jig that holds the molded product by suction is placed close to and opposed to the molded product discharge section,
The flow of air is switched by the switching means, the air is ejected from the opening, and the molded product discharged is captured while the air is released by the molded product discharge unit. Also,
The cylinder connected to the jig body, when air is fed from the air suction means provided in the middle of the cylinder by air pressure feeding means, the air is sucked and amplified from the suction hole and the other end of the cylinder is It is characterized by being discharged from the opening. Further, the molded product removal jig is attached and fixed to a chuck plate rotatably provided at the tip of the arm.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an apparatus for removing molded articles according to the present invention. In the present embodiment, a molded product taking out apparatus for taking out a molded product from a molding die of a resin molding apparatus will be described.

FIG. 1 is a side view of a molded product take-out mechanism, FIG. 2 is a front view of a molded product take-out jig, FIG. 3 is an explanatory view showing an air flow of the molded product take-out jig, and FIG. It is explanatory drawing of the discharge operation of the molded article to an article discharge mechanism.

First, the configuration of a molded product take-out apparatus will be described with reference to FIGS. 1 is a molded product take-out mechanism,
A molded product is sucked and taken out from the resin molding device. Reference numeral 2 denotes a molded product discharging mechanism, which discharges and transfers the molded product sucked and held by the molded product removal mechanism 1 (see FIG. 4).

First, the configuration of the molded product removal mechanism 1 will be described.
This will be described with reference to FIGS. In FIG. 1, reference numeral 3 denotes a take-out arm, which is provided on a part of a rectangular coordinate robot, a cylindrical coordinate type robot, an articulated robot, etc., not shown,
It is provided so as to be movable between a molding die of a resin molding apparatus and a molded product discharging mechanism 2 by a servo mechanism or the like. A chuck plate 4 is attached to the tip of the take-out arm 3 so as to be rotatable about a support shaft 5 by, for example, driving a cylinder. A molded product mounting jig 6 is mounted and fixed to the chuck plate 4.

The molded product removal jig 6 includes a housing-shaped jig main body 8.
Is attached and held at the tip of the take-out arm 3. Jig body 8
Are formed with four openings (for example, circular suction holes) 7, and a mesh-shaped receiving member 9 having air permeability is stretched inside the jig body 8 in the opening 7. I have.
Note that the shape and the number of holes of the opening 7 can be appropriately changed depending on the shape and the number of molded products to be taken out. The jig body 8 has a cylindrical body 1.
0 is connected to one end, and the one end opening 10a communicates with the opening 7 (see FIG. 2).

An air inlet 11 is provided in the middle of the cylinder 10. Compressed air is fed into the air suction port 11 from a compressor (not shown) as air pressure feeding means. Thereby, one end side opening 10a of the cylindrical body 10
Air is amplified by suction toward b, so that the molded article M can be sucked and held by the receiving member 9 provided at the bottom of the opening 7 of the jig main body 8 (see FIG. 3). The air pressure-fed from the air inlet 11 to the cylindrical body 10 flows along the inner wall surface toward the other end side opening 10b by the protruding piece 10c formed near the one end side opening 10a, and The nearby air is amplified by suction. At this time, the air sucked from the air suction port 11 and the one end side opening 10a
The suction efficiency is good because the inhaled air does not collide.

Reference numeral 12 denotes a switching cylinder (air cylinder) as switching means for opening and closing the other end side opening 10b of the cylindrical body 10. The switching cylinder 12 opens the other end side opening 10b while sucking and holding the molded product, and the molded product removal jig 6 is opened.
The air sucked from the opening 7 can be discharged. When discharging the molded product M, the other end side opening 10
By closing b, the air sucked from the air suction port 11 is blown out from the opening 7 so that the molded article M sucked and held by the receiving member 9 can be discharged.

The article ejection mechanism 2 includes an article ejection mechanism 1
A molded article discharging portion 13 having a mesh-like air permeability for receiving the molded article M discharged from the molded article removing jig 6 is formed. When the molded product discharge section 13 discharges the molded product M by blowing air from the opening 7 of the molded product removal jig 6,
Only the molded article M discharged while passing through the air and escaping is captured (see FIG. 4).

Next, the operation of the above-described molded product removing apparatus will be described with reference to FIG. The take-out arm 3 is moved to the molding die of the resin molding apparatus, and compressed air is sent from the compressor through the air suction port 11 of the cylinder 10 connected to the jig main body 8 of the molded product ejection jig 6. The air is suction-amplified from one end side opening 10a to the other end side opening 10b, and the molded article M is sucked and held by the receiving member 9 provided in the opening 7 of the jig body 8. At this time, the switching cylinder 12 is in a state where the other end side opening 10b of the cylindrical body 10 is opened.

The removal arm 3 is moved by the molded product removal mechanism 1 while holding the molded product M by suction, and the molded product removal jig 6 is moved to a removal position above the molded product discharge mechanism 2. Then, the chuck plate 4 is rotated by 90 ° about the support shaft 5,
The molded product removal jig 6 is opposed to the molded product discharge unit 13, the removal arm 3 is moved down, and the molded product removal jig 6 is moved to a position close to the molded product discharge unit 13 as shown by the broken line in FIG. 4. . Then, the switching cylinder 12 is operated to move the cylinder 1
The other end side opening 10b is closed, and the flow of air in the molded product removal jig 6 is switched so that air is ejected from the opening 7. Thereby, the minute molded product M which is hardly dropped due to static electricity between the receiving member 9 and the jig main body 8 only by stopping the suction operation can be reliably discharged to the molded product discharge unit 13. Further, since the molded article discharge section 13 captures only the molded article M while escaping the air ejected from the opening 7, the discharged molded article M does not fly up and scatter.

According to the above-described structure, the molded product take-out mechanism 1 causes the molded product take-out jig 6 to face the molded product discharge section 13 of the molded product discharge mechanism 2 while holding the molded product M by suction. Since the flow is switched and air is ejected from the opening 7 to discharge the molded article M, the minute molded article M which is hard to drop due to static electricity between the receiving member 9 and the jig body 8 is sent to the molded article discharge section 13. Can be discharged reliably. Also,
Since the molded article discharge section 13 catches the discharged molded article M while escaping the air ejected from the opening 7, the discharged molded article M does not scatter, and the handling and work of the minute molded article M are prevented. Performance can be improved.

Although the preferred embodiment of the present invention has been described in various ways, the present invention is not limited to this embodiment. For example, the other end of the cylindrical body 10 connected to the jig body 8 The opening and closing of the opening 10b is not limited to the cylinder, but may be performed by a valve body such as an electromagnetic valve, and the shape and number of the openings 7 formed in the jig body 8 can be arbitrarily changed. Of course, many more modifications can be made without departing from the spirit.

[0021]

As described above, according to the present invention, a molded product removal jig having a molded product adsorbed and held in an opening is opposed to a molded product discharging portion, and air is ejected from the opening to discharge the molded product. A minute molded product that is hard to fall due to static electricity between the receiving member and the jig main body can be reliably discharged to the molded product discharge section. In addition, since the molded product discharge section catches the discharged molded product while escaping the air ejected from the opening, the discharged molded product does not scatter, improving the handling and workability of minute molded products. Can be done.

[Brief description of the drawings]

FIG. 1 is a side view of a molded product removal mechanism.

FIG. 2 is a front view of a molded product removal jig.

FIG. 3 is an explanatory diagram showing a flow of air of a molded product removal jig.

FIG. 4 is an explanatory diagram of a discharging operation of a molded product from a molded product taking-out mechanism to a molded product discharging mechanism.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 molded product take-out mechanism 2 molded product discharge mechanism 3 take-out arm 4 chuck plate 5 support shaft 6 molded product mounting jig 7 opening 8 jig main body 9 receiving member 10 cylindrical body 10a, 10b opening 10c protrusion 11 air intake port 12 switching cylinder 13 Mold discharge section

Claims (5)

[Claims] 1. A jig body is attached and held to a movable arm tip, and a molded product is sucked and held by a breathable receiving member provided in an opening formed in the jig body, and air is blown from the opening. A molded product ejection jig capable of ejecting the molded product sucked and held and discharging the molded product, and a molded product discharge portion having a gas permeability capable of receiving the molded product discharged from the molded product ejection jig and allowing the ejected air to escape. A molded product removal device comprising: 2. The molded product removal jig is configured to open and close an opening on the other end side of the cylindrical body, and an air pressure feeding unit configured to supply air from a middle of a cylindrical body having one end side connected to the jig body. By this means, there is provided switching means for switching the flow of air sent from the air pressure feeding means, sucking air from the opening of the jig main body, or ejecting air from the opening. The molded product removal device according to claim 1, wherein: 3. A molding product ejection jig holding the molded product by suction is made to face and close to the molded product discharge portion, and the switching means switches the flow of air to eject air from the opening to form the molding product. The molded product removal device according to claim 2, wherein the molded product discharged while discharging air by the molded product discharging portion is captured. 4. A cylinder connected to the jig main body, when air is fed from the air suction port provided in the middle of the cylinder by the air pressure feeding means, suction air is amplified from the suction hole. 4. The molded product removal device according to claim 1, wherein the molded product is discharged from an opening at the other end of the cylindrical body. 5. The molding according to claim 1, wherein the molded product removal jig is mounted and fixed to a chuck plate rotatably provided at a tip of the arm. Product removal device.