CN103909630A - Ejector sleeve ejection mechanism - Google Patents

Abstract

The invention discloses an ejector sleeve ejection mechanism which comprises a lower fixing plate, an ejection rod, an ejection block, a first pressing block, a second pressing block, a third pressing block, an ejector sleeve and an equal-height screw; the ejector sleeve is arranged on one side of the third pressing block; the ejector sleeve comprises a sleeve; one end of the sleeve is contacted with the first pressing block, and the other end of the sleeve is pressed against a cylindrical hole of a product; an ejector sleeve pin is arranged in the sleeve; one end, arranged in the second pressing block, of the ejector sleeve pin is contacted with the third pressing block; one end of the equal-height screw is arranged in a male molding plate, and the other end of the equal-height screw is arranged in the second pressing block. According to the ejector sleeve ejection mechanism, the first pressing block, the second pressing block and the third pressing block are arranged, the sleeve is fixed on one ejection plate, the ejector sleeve pin is arranged in the second pressing block, and when a mold is opened, an upper ejection plate and a lower ejection plate move to the product direction, the sleeve moves to the product direction, and the product is smoothly ejected out; and with the ejector sleeve ejection mechanism, the ejector sleeve is arranged on one side of an ejection rod hole, so that the product is smoothly demolded.

Description

cylinder ejection mechanism

【Technical field】

The invention relates to a cylinder ejecting mechanism, in particular to a cylinder ejecting mechanism applied in a mold.

【Background technique】

A mold is a tool used to shape an article. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. In the manufacturing process of plastic molds In many cases, it is necessary to set a column hole on the product. For this type of product, it is necessary to set a cylinder on the ejection mechanism of the mold. The cylinder is a kind of circular through hole or blind hole used on the product. And the rubber position must be ejected. It is an ejection accessory used. The sleeve is composed of a sleeve and a sleeve pin. Usually, the sleeve is mounted on the ejector plate, and the sleeve pin is mounted on the lower fixing plate.

Please refer to Fig. 1, which is a schematic sectional view of the existing ejector mechanism, if a cylinder 20 is to be installed on the ejector mechanism of the existing mould, since the lower fixing plate 12 of the mechanism is provided with an ejector pin hole 10, and An ejector pin 11 is provided in the ejector pin hole 10, and the cylinder pin 202 will interfere with the ejector pin 11, so that the cylinder pin 202 cannot be fixed on the lower fixing plate 12. When the mold is opened, due to the column of the product 14 The hole 13 cannot be ejected, causing the product 14 to be unable to be demolded smoothly.

In view of this, it is necessary to provide a cylinder ejecting mechanism, which can solve the problem in the above-mentioned technology that the cylinder cannot be installed on the side of the ejector pin hole, which makes the product demoulding difficult.

【Content of invention】

Therefore, the object of the present invention is to provide a cylinder ejecting mechanism, which can solve the above-mentioned problem of unsmooth demoulding of the product due to the inability to arrange the cylinder on one side of the ejector pin hole.

In order to achieve the above object, the cylinder ejector mechanism of the present invention is applied to a mold with column holes on the product. Ejection plate and ejection plate, the cylinder ejection mechanism includes:

A lower fixing plate, the lower fixing plate is placed on one side of the lower ejector plate, and the lower fixing plate is provided with a penetrating ejector pin hole;

a ejector rod, the ejector rod is placed in the ejector rod hole;

A top block, one end of the top block is in contact with the push rod, and the other end is provided with a slide groove;

A first pressing block, the first pressing block is placed in the sliding groove, and the first pressing block is connected with the upper ejection plate or the lower ejection plate;

A second pressing block, the second pressing block is placed in the sliding groove, and the second pressing block is placed on the side of the first pressing block;

a third pressing block, the third pressing block is placed in the sliding groove, and the third pressing block is connected with the second pressing block;

A sleeve, which is placed on the side of the third pressing block, the sleeve includes a sleeve, one end of which is in contact with the first pressing block, and the other end bears against the column hole of the product, and the sleeve There is a cylinder needle inside the cylinder, one end of the cylinder needle withstands the product, the other end is placed in the second compact, and the end of the cylinder needle placed in the second compact is in contact with the third compact. touch; and

One equal-height screw, one end of the equal-height screw is placed in the male template, the other end is placed in the second pressing block, and the end of the equal-height screw placed in the second pressing block is connected to the third pressing block The blocks are in contact.

Preferably, at least one through hole is provided in the top block, and a fastener is provided in the through hole, and the fastener connects the top block with the lower ejection plate.

Preferably, the fasteners are screws.

Preferably, the top block is U-shaped.

Preferably, the end of the sleeve in contact with the first pressing plate is T-shaped.

Preferably, the end of the syringe needle in contact with the third pressing plate is T-shaped.

Compared with the prior art, the cylinder ejection mechanism of the present invention is provided with a sliding groove on one side of the ejector rod hole, and a first pressing block, a second pressing block and a third pressing block are arranged in the sliding groove , the sleeve is fixed on the upper ejector plate or the lower ejector plate, and the cylinder needle is set in the second pressing block. When the mold is opened, the upper ejector plate and the lower ejector plate are affected by the force of the ejector rod Moving towards the product direction causes the sleeve to move towards the product direction and the product is ejected smoothly. The cylinder ejection mechanism realizes the setting of the sleeve on the side of the ejector rod hole and the product is demoulded smoothly.

【Description of drawings】

FIG. 1 shows a schematic cross-sectional view of a conventional ejection mechanism.

FIG. 2 shows a schematic cross-sectional view of the cylinder ejector mechanism of the present invention when the mold is closed.

FIG. 3 shows a schematic cross-sectional view of the cylinder ejection mechanism of the present invention when the mold is opened.

【Detailed ways】

Please refer to Fig. 2 and Fig. 3, wherein Fig. 2 is a schematic cross-sectional view of the cylinder ejector mechanism of the present invention when the mold is closed, and Fig. 3 is a schematic cross-sectional diagram of the cylinder ejector mechanism of the present invention when the mold is opened.

The cylinder ejection mechanism of the present invention is applied in a mold provided with a column hole 101 on a product 100, and the mold includes a female template 102, a male template 103, a female mold core 104, a male mold core 105, a The upper ejector plate 106 and the lower ejector plate 107, in this embodiment, the cylinder ejector mechanism includes:

A lower fixing plate 108, the lower fixing plate 108 is placed on the side of the lower ejector plate 107, and a ejector pin hole 109 is provided in the lower fixing plate 108;

A push rod 110, which is placed in the push rod hole 109;

A top block 111, one end of the top block 111 is in contact with the push rod 110, the other end is provided with a sliding groove 112, and at least one through hole 118 is provided in the top block 111, in this embodiment, please Referring to Fig. 2, two through holes 118 are provided in the top block 111, and a fastener 119 is provided in the through hole 118, and the fastener 119 connects the top block 111 with the lower ejector plate 107, In this embodiment, the fastener 119 is a screw, and the top block 111 is U-shaped;

A first pressing block 113, the first pressing block 113 is placed in the sliding groove 112;

A second pressing block 114, the second pressing block 114 is placed in the sliding groove 112, and the second pressing block 114 is placed on the side of the first pressing block 113;

A third pressing block 115, the third pressing block 115 is placed in the sliding groove 112, and the third pressing block 115 is connected to the second pressing block 114;

A sleeve 116, which is placed on the side of the third pressing block 115, the sleeve 116 includes a sleeve 1161, one end of the sleeve 1161 is in contact with the first pressing block 113, and the other end of the sleeve 1161 is in contact with the product 100 The cylinder hole 101, and the sleeve 1161 is provided with a cylinder needle 1162, one end of the cylinder needle 1162 withstands the product 100, and the other end is placed in the second pressing block 114, and the cylinder needle 1162 is placed in the second pressing block 114. This end in the second pressing block 114 is in contact with the third pressing block 115; and

One equal-height screw 117, one end of the equal-height screw 117 is placed in the male template 103, the other end is placed in the second pressing block 114, and the equal-height screw 117 is placed in the end of the second pressing block 114 contact with the third pressing block 115 .

In this embodiment, the end of the sleeve 1161 in contact with the first pressing plate 113 is T-shaped.

In this embodiment, the end of the syringe needle 1162 in contact with the third pressing plate 115 is T-shaped.

In this embodiment, please refer to Fig. 3, the movement process of the cylinder ejector mechanism when the mold is opened is: the male mold moves away from the product 100 under the pulling force of the injection molding machine, when the male mold moves to the set Then, the ejector rod 110 moves toward the product 100, and the ejector block 111 begins to move toward the product 100 due to the force of the ejector rod 110. At the same time, the ejector block 111 will drive the upper ejector plate 106 Move in the same direction with the lower ejector plate 107, because the contour screw 117 passes through the first pressing block 113 to fix the second pressing block 114 and the male template 103, and the second pressing block 114 is in contact with the third pressing block 115 connected, so that the second pressing block 114 and the third pressing block 115 will not move together with the lower ejector plate 107, and the cylinder needle 1162 will not move either; At this time, since the first pressing block 113 is connected with the upper ejection plate 106, and one end of the sleeve 1161 is in contact with the first pressing block 113, and the other end is against the column hole 101 of the product 100, then the first pressing block 113 Will drive the sleeve 1161 to move towards the column hole 101 of the product 100, the column hole 101 will be separated from the cylinder pin 1162 by the force of the sleeve 1161, so that the product 100 can be demoulded smoothly, and then the mold is closed and the next injection molding starts Product 100.

Compared with the prior art, the cylinder ejection mechanism of the present invention is provided with a sliding groove 112 on one side of the ejector rod hole 109, and a first pressing block 113 and a second pressing block 114 are arranged in the sliding groove 112. And the third briquetting block 115, the sleeve 1161 is fixed on the upper ejector plate 106 or the lower ejector plate 107, and the cylinder needle 1162 is arranged in the second briquetting block 114, when the mold is opened, the upper ejector plate 106 And the lower ejector plate 107 moves toward the product 100 due to the force of the ejector rod 110, causing the sleeve 1161 to move toward the product 100 and the product 100 is ejected smoothly. One side of 109 is provided with a cylinder 116, and the product 100 is demoulded smoothly.

Claims (6)

1. A cylinder ejector mechanism, which is applied to a mold with a column hole on the product. The mold includes a female template, a male template, a female mold core, a male mold core, an upper ejector plate and a lower plate. The ejector plate is characterized in that the cylinder ejector mechanism includes: A lower fixing plate, the lower fixing plate is placed on one side of the lower ejector plate, and the lower fixing plate is provided with a penetrating ejector pin hole; a ejector rod, the ejector rod is placed in the ejector rod hole; A top block, one end of the top block is in contact with the push rod, and the other end is provided with a slide groove; A first pressing block, the first pressing block is placed in the sliding groove, and the first pressing block is connected with the upper ejection plate or the lower ejection plate; A second pressing block, the second pressing block is placed in the sliding groove, and the second pressing block is placed on the side of the first pressing block; a third pressing block, the third pressing block is placed in the sliding groove, and the third pressing block is connected with the second pressing block; A sleeve, which is placed on the side of the third pressing block, the sleeve includes a sleeve, one end of which is in contact with the first pressing block, and the other end bears against the column hole of the product, and the sleeve There is a cylinder needle inside the cylinder, one end of the cylinder needle withstands the product, the other end is placed in the second compact, and the end of the cylinder needle placed in the second compact is in contact with the third compact. touch; and One equal-height screw, one end of the equal-height screw is placed in the male template, the other end is placed in the second pressing block, and the end of the equal-height screw placed in the second pressing block is connected to the third pressing block The blocks are in contact. 2. The cylinder ejecting mechanism according to claim 1, characterized in that at least one through hole is provided in the top block, and a fastener is provided in the through hole, and the fastener connects the top block Connect with the lower ejector plate. 3. The cylinder ejecting mechanism according to claim 2, characterized in that, the fasteners are screws. 4. The cylinder ejecting mechanism according to claim 1, wherein the jacking block is U-shaped. 5. The cylinder ejecting mechanism according to claim 1, wherein the end of the sleeve in contact with the first pressing plate is T-shaped. 6. The cylinder ejecting mechanism according to claim 1, wherein the end of the cylinder needle in contact with the third pressing plate is T-shaped.