CN212097369U - A hollow cylindrical rubber piece top die mechanism - Google Patents

Abstract

The utility model discloses a hollow column rubber spare top mould mechanism, including profiled sheeting, top template and actuating mechanism, be provided with the shaping hole in the profiled sheeting, be provided with on the top template with the top mould pole that the shaping hole is relative actuating mechanism's drive is down the top mould pole can stretch into in the shaping hole reciprocate in the shaping hole, top mould pole top is provided with first ejecting portion, first ejecting portion include on the direction of height with the cambered surface and at least one of top mould pole with the axle center by supreme gradually to the inclined plane of cambered surface slope down, the cambered surface with the inclined plane top forms first ejecting plane. The utility model discloses a can smooth and easy ejecting hollow column rubber spare, the condition of central column rubber spare card in the profiled sheeting takes place when preventing ejecting.

Description

A hollow cylindrical rubber piece top die mechanism

technical field

The utility model relates to the field of rubber product manufacturing, in particular to a top mold mechanism for a hollow cylindrical rubber piece.

Background technique

Rubber injection machine is the main equipment for making rubber products of various shapes using injection molding molds, and is widely used in industrial production. When the ejector mechanism of the existing rubber injection machine ejects some specific rubber parts, the rubber parts may be stuck in the molding plate, especially when the hollow cylindrical rubber parts are ejected, the ejection is prone to be difficult. .

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the present utility model proposes a hollow cylindrical rubber member top mold mechanism, which can smoothly eject the hollow cylindrical rubber member to prevent the hollow cylindrical rubber member from being stuck in the forming plate during the ejection.

According to one aspect of the present invention, there is provided a top mold mechanism for a hollow cylindrical rubber piece, which includes a forming plate, a top template and a driving mechanism, wherein the forming plate is provided with a forming hole, and the top template is provided with a connection with the molding The top mold rod with the opposite hole, the top mold rod can extend into the forming hole and move up and down in the forming hole under the driving of the driving mechanism, and the top mold rod is provided with a first ejection part , the first ejection part in the height direction includes an arc surface that is concentric with the top die rod and at least one inclined surface that gradually slopes toward the arc surface from bottom to top, the arc surface and the top end of the inclined surface A first ejection plane is formed.

In this embodiment, the first ejection plane at the top of the ejector rod is eccentrically arranged through the arrangement of the first ejection portion. When the driving mechanism continues to drive the ejector rod to move upward, the first ejection plane cooperates with the inclined surface on the first ejection part to eject the hollow cylindrical rubber piece upwards and sideways, so that the hollow cylindrical rubber can be ejected smoothly. to prevent the hollow cylindrical rubber part from being stuck in the forming plate when it is ejected.

Further, a mounting portion is provided at the bottom of the top die rod, and the mounting portion is detachably connected to the top die plate.

In this embodiment, the installation and replacement of the top mold rod is convenient, and at the same time, different top mold rods can be replaced according to different rubber parts, which enhances the applicable scope of the top mold mechanism.

Further, a second ejection portion is further provided between the mounting portion and the first ejection portion, the top of the second ejection portion is fixedly connected with the bottom of the first ejection portion, and the second ejection portion is fixedly connected to the bottom of the first ejection portion. The top area of the ejection portion is larger than the bottom area of the first ejection portion, and a second ejection plane is provided on the second ejection portion.

In this embodiment, the arrangement of the second ejection plane can serve the purpose of assisting the ejection of the hollow cylindrical rubber piece.

Further, in the height direction, the first ejection portion includes an arc surface that is coaxial with the ejector rod and three inclined surfaces that gradually slope toward the arc surface from bottom to top.

In this embodiment, the arrangement of the three inclined planes can further ensure that the hollow cylindrical rubber piece is pushed out smoothly.

Further, the driving mechanism includes a driving cylinder, and the driving shaft of the driving cylinder is fixedly connected with the top plate.

In this embodiment, the top die action can be realized by driving the cylinder to drive the top die plate so that the top die rod moves up and down in the forming hole.

Further, the first ejection portion is made of tungsten steel material.

In this embodiment, the tungsten steel material has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, even at a temperature of 500 ° C It remains basically the same, and still has high hardness at 1000°C, and the first ejector part is the main top mold part of the top mold rod, which uses tungsten steel material to ensure the service life of the top mold rod and prolong its use. time.

Description of drawings

Fig. 1 is the schematic diagram of the utility model embodiment;

FIG. 2 is a schematic diagram of an ejector rod according to an embodiment of the present invention.

Reference numerals: 1. forming plate; 2. top plate; 3. forming hole; 4. top die rod; 5. first ejection part; 6. inclined plane; 7. first ejection plane; 8. mounting part; 9. Second ejection part; 10. Second ejection plane; 11. Drive cylinder; 12. Drive shaft.

Detailed ways

Referring to FIG. 1 , a top mold mechanism of a hollow cylindrical rubber piece in this embodiment includes a forming plate 1 made of steel material, a top mold plate 2 and a driving mechanism. The driving mechanism includes a driving cylinder 11 and a driving shaft 12 for driving the cylinder 11 . Fixedly connected with the top plate 2, the top plate 2 is provided with a top mold rod 4 opposite to the forming hole 3. The top mold rod 4 can extend into the forming hole 3 and move up and down in the forming hole 3 under the driving of the driving cylinder 11.

2, the top of the ejector rod 4 is provided with a first ejection portion 5, the first ejection portion 5 is made of tungsten steel material, and the first ejection portion 5 includes coaxial with the ejector rod 4 in the height direction. The arc surface and three inclined surfaces 6 gradually inclined to the arc surface from bottom to top, the arc surface and the top of the inclined surface 6 form a first ejection plane 7 A mounting portion 8 is provided at the bottom of the top die rod 4 , and the mounting portion 8 is detachably connected to the top die plate 2 . A second ejection portion 9 is also provided between the mounting portion 8 and the first ejection portion 5, the top of the second ejection portion 9 is fixedly connected with the bottom of the first ejection portion 5, and the top area of the second ejection portion 9 is larger than that of the first ejection portion 9. A bottom area of the ejection portion 5 is provided, and a second ejection plane 10 is provided around the top of the second ejection portion 9 .

The above-mentioned embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above-mentioned embodiments, and any other changes, modifications, and substitutions made without departing from the spirit and principle of the present utility model , combination and simplification, all should be equivalent replacement methods, which are all included in the protection scope of the present invention.

Claims (6)

1. A hollow cylindrical rubber member top mold mechanism, characterized in that: it comprises a forming plate (1), a top template (2) and a driving mechanism, wherein the forming plate (1) is provided with a forming hole (3), the The top die plate (2) is provided with a top die rod (4) opposite to the forming hole (3), and the top die rod (4) can extend into the forming hole (3) under the driving of the driving mechanism ) moves up and down in the molding hole (3), the top of the ejector rod (4) is provided with a first ejection portion (5), the first ejection portion (5) in the height direction includes and A concentric arc surface of the top die rod (4) and at least one inclined surface (6) gradually inclined to the arc surface from bottom to top, the arc surface and the top end of the inclined surface (6) form a first ejection plane (7). 2 . The top mold mechanism for a hollow cylindrical rubber piece according to claim 1 , wherein a mounting portion ( 8 ) is provided at the bottom of the top mold rod ( 4 ), and the mounting portion ( 8 ) is connected to the The top plate (2) is detachably connected. 3. A hollow cylindrical rubber member top mold mechanism according to claim 2, characterized in that a second ejector is further provided between the mounting portion (8) and the first ejector portion (5). part (9), the top of the second ejection part (9) is fixedly connected with the bottom of the first ejection part (5) and the top area of the second ejection part (9) is larger than that of the first ejection part The bottom area of the part (5), the second ejection plane (10) is provided on the second ejection part (9). 4. A hollow cylindrical rubber member top mold mechanism according to claim 1, characterized in that: the first ejection portion (5) comprises a coaxial center with the top mold rod (4) in the height direction The cambered surface and three inclined surfaces (6) gradually inclined toward the cambered surface from bottom to top. 5. A hollow cylindrical rubber member top die mechanism according to claim 1, characterized in that: the driving mechanism comprises a driving cylinder (11), and a driving shaft (12) of the driving cylinder (11) is connected to the driving cylinder (11). The top formwork (2) is fixedly connected. 6 . The top mold mechanism for a hollow cylindrical rubber piece according to claim 1 , wherein the first ejection portion ( 5 ) is made of tungsten steel material. 7 .

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