JP2006327140A - Molded component takeoff device and method for taking off molded component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mold component takeoff device which can assure the stable takeoff of a molded component having a complex shape and a member which is easy to break. <P>SOLUTION: The molded component takeoff device 5 comprises: a board 7 extended from a take off device body 6 and inserted as an insertion section into a mold 2 in which mold opening is carried out; and a couple of secure pins 8 extended so as to project toward each brush holder 3 left and put on a mold 2a from this board 7. In addition in the molded component takeoff device 5, each of those secure pins 8 is inserted into a hole section 3c of each brush holder 3, thereby this each brush holder 3 is conserved and the takeoff to the outside of a injection molding machine 1 (mold 2) is performed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a molded product take-out apparatus and a molded product take-out method.

2. Description of the Related Art Conventionally, there is a molded product take-out apparatus that automatically takes out a molded product from a mold that is opened in synchronization with the operation of a molding machine. As such an automatic take-out device, the molded product is gripped by a suction method (see Patent Document 1) in which the molded product is sucked and taken out by the suction portion at the arm tip (see Patent Document 1). What employ | adopts a clamp system (refer patent document 2) is known.
JP 2003-220499 A JP-A-5-185462

  However, in the above-described adsorption method, it is not possible to ensure a stable take-out of those having a small planar shape as an adsorption surface and those that are likely to generate burrs such as a thermosetting resin molded product. Similarly, the clamp method cannot be stably removed if there is not enough clamping space (gripping part), and thin or soft materials will be deformed or damaged by the gripping force. there is a possibility.

  For this reason, for example, a brush holder 3 (see FIG. 3) of a rotating electrical machine having a complicated shape and having many portions that are easily damaged is not suitable for any of the above methods, and is stable. There is a problem that it is impossible to ensure proper removal. And the instability in the taking-out process is a factor that lowers the production efficiency, and the improvement is strongly demanded.

  The present invention has been made in order to solve the above-described problems, and its object is to form a molded product having a complicated shape and a portion that is easily damaged, and capable of ensuring stable removal. An object of the present invention is to provide a product take-out apparatus and a method for taking out a molded product.

  In order to solve the above-mentioned problems, the invention described in claim 1 is a molded product take-out device for taking out a molded product from a mold that has been opened, and is inserted into the mold that has been opened. And a projecting portion extending from the insertion portion toward the molded product left in the mold, and holding the molded product by engaging the concave portion or the hole of the molded product with the projecting portion. The gist is to perform the removal.

The gist of the invention described in claim 2 is that the molded product is projected by the projecting mechanism of the molding machine and engaged with the projecting portion.
The gist of the invention described in claim 3 is that the projecting portion is formed with a slope inclined downward from the distal end toward the proximal end.

The gist of the invention described in claim 4 is provided with a detecting means for detecting the holding of the molded product.
The gist of the invention described in claim 5 is that the molded product is a brush holder of a rotating electrical machine.

  The invention according to claim 6 is a molding in which an insertion portion having a protruding portion extending toward a molded product left in the mold that has been opened is inserted into the mold, and is protruded from the mold. The gist of the present invention is a method of taking out a molded product that holds and takes out the molded product by engaging a concave portion or a hole of the product with the protruding portion.

(Function)
According to the first and sixth aspects of the present invention, even if the shape is complicated and there are many parts that are easily damaged, the parts can be stably taken out without being damaged or deformed. As a result, high quality can be ensured and productivity can be improved.

According to the invention described in claim 2, the movement of the insertion portion can be simplified. As a result, stable extraction can be ensured with a simple configuration.
According to invention of Claim 3, a molded article moves to the base end of a protrusion part so that a slope may slide, and is hold | maintained at the base end. Therefore, it is possible to prevent the molded product from being detached from the protruding portion and to hold it more reliably.

According to the fourth aspect of the present invention, it is possible to prevent the insertion part from moving before the molded product is held and to disengage the molded product from the projecting part, and to remove the molded product more reliably.
According to invention of Claim 5, a high quality brush holder can be manufactured with sufficient productivity.

  ADVANTAGE OF THE INVENTION According to this invention, the molded product taking-out apparatus which can ensure the stable taking-out about the molded product which has a complicated shape and a part which is easy to be damaged, and the taking-out method of a molded product can be provided.

Hereinafter, an embodiment in which the present invention is embodied in an apparatus for taking out a molded product of an injection molding machine provided with a mold for forming a brush holder will be described with reference to the drawings.
As shown in FIG. 1, an injection molding machine 1 is a horizontal molding machine provided with a mold 2 (2a, 2b) for molding a brush holder of a rotating electrical machine. 2a and 2b move in the lateral direction (left-right direction in the figure) so as to be separated from each other. Note that the mold 2 of the present embodiment can form two brush holders 3 at a time. In this embodiment, after the mold is opened, each brush holder 3 that is a molded product has any surface (see FIG. 3, front surface 3a or back surface 3b) on the molding surface 4 of the mold 2a (left side in the figure). ) Are in contact with each other, i.e., in a state of being upright in the radial direction, and are left on the mold 2a.

  On the other hand, the molded product takeout device 5 of the present embodiment extends from the takeout device main body 6 and is inserted into the mold 2 that is opened, that is, as an insertion portion that is inserted between the mold 2a and the mold 2b. Board 7 and a pair of holding pins 8 extending from the board 7 so as to protrude toward the brush holders 3 left on the mold 2a. The molded product take-out device 5 holds the brush holders 3 by engaging the holes 3c of the brush holders 3 with the holding pins 8 and removes them from the injection molding machine 1 (mold 2). It comes to take out.

  More specifically, as shown in FIG. 2, each holding pin 8 is inclined and extended obliquely upward from the board 7, so that the upper surface 8a of each holding pin 8 has a base from its tip 8b. A slope 9 that slopes downward toward the end 8c is formed. And the front-end | tip 8b is located in the position which opposes the hole 3c of the corresponding brush holder 3 by the board 7 being inserted in the metal mold | die 2, specifically, slightly below the hole 3c. Is set to

  Moreover, in this embodiment, the injection molding machine 1 is provided with the ejector mechanism 10 which protrudes each brush holder 3 after shaping | molding from the molding surface 4 of the metal mold | die 2a. Each brush holder 3 is projected from the ejector mechanism 10 so as to be separated from the molding surface 4 of the mold 2a and engage with the corresponding holding pin 8 to slide the slope 9 of each holding pin 8. In this manner, each holding pin 8 is held by moving to the base end 8c.

  Further, in the present embodiment, a sensor 11 is provided in the vicinity of the base end 8 c of each holding pin 8 to detect movement of each brush holder 3 to the base end 8 c, that is, holding by each holding pin 8. Yes. Then, after confirming the holding of each brush holder 3 by this sensor 11, the molded product taking-out device 5 takes out each brush holder 3 by moving the board 7 out of the injection molding machine 1 (mold 2). It is like that.

As described above, according to the present embodiment, the following features can be obtained.
(1) The molded product take-out device 5 extends from the take-out device main body 6 and is placed in the die 2 that is inserted into the mold 2 that is opened from the die 7 and is left on the die 2a. And a pair of holding pins 8 extending so as to protrude toward each brush holder 3. Then, the molded product take-out device 5 holds each brush holder 3 by engaging the hole 3c of each brush holder 3 with each holding pin 8 and moves it out of the injection molding machine 1 (mold 2). Take out.

  With such a configuration, even if the shape is complicated and has many parts that are easily damaged like the brush holder 3, it can be stably taken out without being damaged or deformed. . As a result, high quality can be ensured and productivity can be improved.

  (2) Each brush holder 3 is projected from the ejector mechanism 10 of the injection molding machine 1, thereby being separated from the molding surface 4 of the mold 2 a and engaged with the corresponding holding pin 8. With such a configuration, the movement of the board 7 as the insertion portion can be simplified. As a result, stable extraction can be ensured with a simple configuration.

  (3) The upper surface 8a of each holding pin 8 is formed with an inclined surface 9 inclined downward from the distal end 8b toward the proximal end 8c. For this reason, each brush holder 3 moves to the base end 8c so as to slide on the inclined surface 9 of each holding pin 8, and is held by the holding pin 8 at the base end 8c. Therefore, each brush holder 3 can be prevented from coming off from each holding pin 8 and can be held more reliably.

  (4) The molded product removing device 5 includes a sensor 11 that detects that the brush holders 3 are held by the holding pins 8. Therefore, the board 7 can be prevented from moving before each brush holder 3 is held and the brush holder 3 is detached from each holding pin 8, so that it can be taken out more reliably.

In addition, you may change each said embodiment as follows.
In this embodiment, the present invention is embodied in the molded product take-out device 5 of the injection molding machine 1 that is a horizontal molding machine, and the molded product take-out device 5 is used for taking out the brush holder 3 that is the molded product. It was. However, the present invention is not limited to this, and the object to be taken out may be a molded product other than the brush holder 3 as long as it has a recess or a hole that can be engaged with the holding pin 8 as the projecting portion. It may be applied to a molding machine other than the machine and a molded product other than the resin molded product may be taken out. The mold opening mode is not limited to a horizontal molding machine, and the mold may be composed of three or more molds.

  In the present embodiment, the inclined surfaces 9 are formed on the upper surface 8 a of each holding pin 8 by extending each holding pin 8 from the board 7 so as to be inclined obliquely upward. However, the present invention is not limited to this, and a similar slope may be formed by forming a notch in the upper surface 8a of each holding pin 8.

  In the present embodiment, a pair of holding pins 8 is provided on the board 7, but the holding pins 8 may be set according to the number of molded products that can be formed at one time by the mold 2. Therefore, it may be one or more than three.

  -In this embodiment, each brush holder 3 is spaced apart from the molding surface 4 of the metal mold | die 2a by projecting to the ejector mechanism 10 as an ejection mechanism, and the structure which engages with each holding pin 8 corresponding to it. did. However, the present invention is not limited to this, and the board 7 as the insertion portion may be positively moved so that the holding pins 8 are engaged with the holes 3 c of the brush holders 3.

The schematic block diagram of a molded article taking-out apparatus and the injection molding machine applied. The enlarged view of the holding pin vicinity of a taking-out apparatus. The perspective view of a brush holder.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Injection molding machine, 2 (2a, 2b) ... Metal mold | die, 3 ... Brush holder, 3c ... Hole, 4 ... Molding surface, 5 ... Molded product taking-out apparatus, 7 ... Board, 8 ... Holding pin, 8b ... Tip 8c ... proximal end, 9 ... slope, 10 ... ejector mechanism, 11 ... holding sensor.

Claims (6)

A molded product takeout device for taking out a molded product from a mold that has been opened,
An insertion portion to be inserted into the opened mold,
A projecting portion extending from the insertion portion toward the molded product left in the mold,
A molded product take-out apparatus characterized in that the molded product is held and taken out by engaging the recess or hole of the molded product with the protruding portion. In the molded product ejection device according to claim 1,
The molded product is ejected by a projecting mechanism of a molding machine and engaged with the projecting portion. In the molded product take-out apparatus according to claim 1 or 2,
The projecting portion is formed with a slope inclined downward from the distal end toward the proximal end,
Molded product take-out device characterized by the above. In the molded product take-out device according to any one of claims 1 to 3,
Comprising a detecting means for detecting the holding of the molded article,
Molded product take-out device characterized by the above. In the molded product take-out device according to any one of claims 1 to 4,
The molded product is a brush holder of a rotating electrical machine;
Molded product take-out device characterized by the above.   An insertion portion having a protruding portion extending toward the molded product left in the mold that has been opened is inserted into the mold, and a concave portion or a hole portion of the molded product protruding from the mold is projected into the mold. A method of taking out a molded product that holds the molded product by engaging with a portion and takes out the molded product.

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