JPH0674312U - Finishing equipment for molded products - Google Patents

Abstract

(57) [Summary] [Purpose] A product a in which product part b and burr part c are integrally molded.
Is set in the female die 1 and the male die 8 is pressed against the female die 1 to separate the product portion b and the burr portion c. Allows the mold 8 to be used without precise positioning. [Structure] The male die 8 is provided with a flat pressing portion 11 made of a rubber-like elastic material.
To provide. The pressing portion 11 is not shaped according to the shape of a specific molded product in the free state, and when pressed against the female mold 1, matches the shape of the molded product a set in the female mold 1. While elastically deforming, this molded product a
Press.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a finishing device for molded articles.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 4, a molded product a in which a product part b and a burr part c are integrally molded is set in a female mold 1, and a male mold 8 is pressed against the female mold 1 to separate the product part b and the burr part c. There is known a finishing device for a molded product a which is cut into pieces by punching.

In the figure, a product part b is an O-ring made of a rubber-like elastic material, and a molded product a is formed into a sheet including the O-ring. The female die 1 is provided with a product removal groove 2 having an annular shape having the same diameter as the O ring, and annular burr grooves 3 and 4 are provided on the inner peripheral side and the outer peripheral side of the product removal groove 2, respectively. There is. Further, edge portions 5 and 6 are provided at the boundaries between the product removal groove 2 and the burr grooves 3 and 4, respectively, and a required number of air supply holes 7 are provided so as to communicate with the bottom of the product removal groove 2. On the other hand, the male die 8 is integrally provided with a protruding pressing portion 9 having an annular shape having the same diameter as the O-ring, and the tip surface 9a of the pressing portion 9 has a metal pressing portion 9 made of rubber when pressing. The O-ring made of elastic material is molded into a curved surface so as not to damage the surface of the O-ring.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional technique has a problem that the male die 8 has no general versatility and that the female die 1 and the male die 8 must be accurately positioned before they are used.

[0005]

[Means for Solving the Problems]

 In view of the above points, the present invention has been devised to solve the above-mentioned problems in the prior art. In order to achieve this object, a molded product in which a product part and a burr part are integrally molded is formed into a female mold. In a finishing device for a molded product, in which a male die is pressed against the female die to separate the product portion from the burr portion, the male die is provided with a flat pressing portion made of a rubber-like elastic material.

[0006]

[Action]

 The flat pressing part made of rubber-like elastic material is not shaped in conformity with the shape of the specific molded product in the free state, and when pressed against the female mold, the flat pressed part of the molded product set in the female mold is The molded product is pressed while elastically deforming according to the shape.

[0007]

【Example】

 An embodiment of the present invention will now be described with reference to the drawings. The finishing device is characterized by the structure of a male die 8 as compared with the above-mentioned prior art, that is, as shown in FIG. It is characterized in that a flat pressing portion 11 made of a rubber-like elastic material is provided on the lower surface of the whole surface thereof. As a specific example of the rubber-like elastic material, natural rubber or urethane rubber is suitable.

The finishing device is used as follows and operates as follows. A sheet-shaped molded product a in which a product portion (O ring) b and a burr portion c are integrally molded is set in the female mold 1. At this time, the molded product a is guided by the burr grooves 3 and 4 and the product removal groove 2 (FIG. 1). As shown in FIG. 2, when the male die 8 is pressed against the female die 1, the pressing portion 11 made of a rubber-like elastic material elastically deforms according to the upper surface shape of the molded product a, and the product portion b is cut into the product removal groove 2 The force that pushes in acts. Then, when this force reaches a predetermined magnitude, the product part b and the burr part c are separated at the edge parts 5 and 6, and the product part b is pushed into the product removal groove 2. Next, as shown in FIG. 3, air blow is performed through the air supply hole 7 (arrow A), and the product portion b is taken out from the product removal groove 2 (arrow B).

The finishing device has the following effects. Since it is possible to use one type of male die 8 in combination with various types of molded products a and female die 1, the versatility of male die 8 is high, and accordingly, the finishing device is simplified, Cost reduction can be realized. Since it is not necessary to accurately position the female die 1 and the male die 8, it is easy to handle. Also from this aspect, the finishing device can be simplified and the cost can be reduced.

The product portion 6 is not limited to the O-ring, and the material thereof may be a resin such as a rubber-like elastic material.

[0011]

[Effect of device]

 The present invention has the following effects. Since it is possible to use one type of male mold in combination with many types of molded products and female molds, the male mold has high versatility, which simplifies the finishing machine and reduces the cost. Can be realized. It is easy to handle because it is not necessary to accurately position the female mold and male mold. Also from this aspect, the finishing device can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of a finisher for a molded product according to an embodiment of the present invention.

FIG. 2 is a sectional view showing an operating state of the finishing device.

FIG. 3 is a sectional view showing an operating state of the finishing device.

FIG. 4 is a cross-sectional view of a finisher for a molded product according to a conventional example.

[Explanation of symbols]

 1 Female type 2 Product removal groove 3,4 Burr groove 5,6 Edge part 7 Air supply hole 8 Male type 10 Male type body 11 Pressing part a Molded product b Product part c Burr part

Claims (1)

[Scope of utility model registration request] 1. A molded product (a) in which a product part (b) and a burr part (c) are integrally molded is set in a female mold (1), and a male mold (8) is pressed against the female mold (1). In the finishing device for the molded product (a) for dividing the product portion (b) and the burr portion (c), the male die (8) is provided with a flat pressing portion (11) made of a rubber-like elastic material. Finishing equipment for characteristic molded products.