JPH0593820U - Injection molded product take-out device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The present invention relates to an injection-molded product take-out device for taking out an injection-molded molded product from a mold, and its purpose is the upper end of a sprue at the time of injection molding. The thread-shaped portion 108 formed by the above is entangled with the brackets 9 and 10 and the gripping claws 11 and 12 of the gripping device 7, and when the gripping device 7 is opened, the problem that the molded product does not drop is reliably prevented. [Structure] The working shaft is fixed to the lower end of the rotatable lifting shaft,
In an injection molded product take-out device in which a gripping device 7 for gripping a sprue 102 of a molded product is fixed to the lower end of the work shaft, the sprue 102 can be loosely fitted as the work shaft descends, and from the upper end of the sprue 102. An injection molded product take-out device in which a loose fitting hole 4 having a size capable of being housed inside by pressing the molded thread portion 108 at the lower end of the work shaft is formed inward from the lower end of the work shaft.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an injection molded product take-out device for taking out an injection-molded product from a mold by a gripping device fixed to the lower end of a rotatable lifting shaft attached to the end of an arm of a robot. Is.

[0002]

[Prior Art]

 Conventionally, as a gripping device such as a robot for taking out an injection-molded molded product from a mold, a device as shown in FIG. 4 is known. More specifically, a gripping device 103 for gripping the sprue 102 of the molded product A is fixed to the lower end of the work shaft 101 of a robot or the like. Further, on the base portion 104 of the gripping device 103, two gripping claws 105 and 106 that are opposed to each other and are spread by publicly known means such as a pneumatic type or an electromagnetic type are arranged via brackets 107 and 108.

[0003] Next, the operation will be described. When the molding is completed and the mold (not shown) is opened, the work shaft 101 and the work shaft 101 are fixed in the opened mold or above the mold. The gripping device 103 is positioned. Then, the grip claws 105 and 106 of the grip device 103 grip the sprue 102 of the molded product A.

Next, the work shaft 101 is raised, an arm such as a robot is rotated to convey the molded product A to a predetermined position, and the gripping claws 105 and 106 are expanded to expand the molded product A into a predetermined number. Place it in place.

[0005]

[Problems to be solved by the device]

 However, in the above-mentioned prior art, as shown in FIG. 4, during injection molding, the thread-like portion 108 is often formed from the upper end of the sprue-102, and the thread-like portion is entangled with the gripping claw 105 and the bracket 107. As a result, there is a problem that the molded product A may not be separated from the gripping device 103 even if the gripping claws 105 and 106 are expanded. The present invention aims to solve the above problems.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is an injection molded product take-out device in which a working shaft is fixed to the lower end of a rotatable lifting shaft, and a gripping device for gripping a sprue of a molded product is fixed to the lower end of the working shaft. , The sprue can be loosely fitted as the work shaft descends, and a threaded portion formed from the upper end of the sprue can be stored inside by pressing the threaded part from the lower end of the work shaft from the lower end of the work shaft. The gist is that it was formed inward.

[0007]

【Example】

 A detailed description will be given based on an embodiment of the present invention shown in FIG. A work shaft 1 is fixed by bolts or the like to the lower end of a rotatable lifting shaft (not shown) attached to the tip of a robot or an extractor. Reference numeral 2 is a fitting hole into which the lifting shaft is fitted, and 3 is an air tube communicating with a suction device 13 described later.

The sprue 102 can be loosely fitted as the working shaft 1 descends, and the thread-like portion 108 formed on the upper end of the sprue 102 can be stored inside by pressing the lower end of the working shaft 1 inside. A loose fitting hole 4 is formed.

A plate 5 is fixed to the lower end of the work shaft 1 with bolts 6. A gripping device 7 is fixed to the plate 5. The gripping device 7 comprises an opening / closing drive source 8, brackets 9 and 10 extending from the opening / closing drive source 8, and gripping claws 11 and 12 fixed to the lower ends of the brackets 9 and 10. There is.

In the first embodiment, the gripping device 7 is arranged so that the central axis of the loose fitting hole 4 of the sprue 102 and the expanding central axis of the gripping claws 11 and 12 are coaxial with each other. However, when the sprue-102 is eccentric, the arrangement position of the gripping device 7 may be appropriately shifted without being caught by the present embodiment. In short, when the sprue-102 is gripped, the sprue-102 and the thread portion 108 may be loosely fitted in the loose fitting hole 4.

An adsorbing device 13 that adsorbs and conveys a product part of a molded product and the like is stretched on an elastic member 14 and slidably arranged on the plate 5. Further, 15 is a proximity switch for detecting the lower end position of the suction device 13.

Next, the operation will be described. When the injection molding is completed and a mold (not shown) is opened, the work shaft 1 and the gripping device 7 fixed to the work shaft 1 are positioned in the open mold or above the mold. Then, when the gripping device 7 descends, the filamentous portion 108 is pushed into the loose fitting hole 4 together with the spool 102 by the lower end of the work shaft 1 and is forcibly stored. Next, the grip claws 11 and 12 of the grip device 7 grip the sprue-102 of the molded product A.

Next, the work shaft 1 is raised and an arm such as a robot is rotated to convey the molded product A to a predetermined position, and the grip claws 11 and 12 are opened to place the molded product A on the predetermined position. Place. Therefore, the molded product A is placed at a predetermined position without the filamentous portion 108 being entangled with the bracket 10 or the grip claw 11.

Even if the thread-like portion 108 is bent, the thread-like portion 108 is forcibly guided into the loose-fitting hole 4 by the inner edge portion 4a at the lower end of the loose-fitting hole 4 and stored.

[0015]

[Effect of the device]

 According to the present invention, the work shaft is fixed to the lower end of the rotatable lifting shaft, and the gripping device for gripping the sprue of the molded product is fixed to the lower end of the work shaft. The sprue can be loosely fitted as it descends, and the threaded part molded from the upper end of the sprue is pressed by the lower end of the work shaft so that a loose fit hole with a size that can be stored inside is directed inward from the lower end of the work shaft. Since it is formed as described above, it is possible to prevent the thread portion formed from the upper end of the sprue from being entangled with the bracket or the gripping claw of the gripping device during the injection molding, and the molded product can be surely transported and placed at a predetermined position.

[Brief description of drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a front view of a conventional device.

[Explanation of symbols]

 1 Working Axis 4 Free Fitting Hole 7 Gripping Device 8 Opening / Closing Drive Source 9 Bracket 10 Bracket 11 Gripping Claw 12 Gripping Claw 102 Sprue-108 Thread Part A Injection Molded Product

Claims (1)

[Scope of utility model registration request] 1. An injection molded product take-out apparatus in which a working shaft is fixed to a lower end of a rotatable lifting shaft, and a gripping device for gripping a sprue of a molded product is fixed to a lower end of the working shaft. The sprue can be loosely fitted as it descends, and the thread-like part formed from the upper end of the sprue can be pressed inside at the lower end of the work shaft so that a loose fit hole with a size that can be stored inside is directed inward from the lower end of the work shaft. The formed injection molded product takeout device.