Synchronous ejection device for rigid ejection

Abstract

The utility model relates to a rigid ejection synchronous ejection device, which comprises a plurality of ejection driving pull rods and an ejection seat, wherein the two ends of each ejection driving pull rod are provided with connecting threads, and the ejection driving pull rods are symmetrically arranged on a sliding block of a screw press through fastening nuts; the ejection seat is provided with an ejection rod falling hole and is arranged on the ejection driving pull rods through fastening nuts; the air cylinder body is provided with an ejection air inlet hole and a return air inlet hole and is installed on the ejection seat, the air cylinder piston is installed in a cavity of the air cylinder body, and the ejection insertion plate is provided with an ejection rod falling hole and is connected with the air cylinder piston through a fastening nut. The ejector rod is located above the ejector inserting plate, provided with a boss and installed in a mode of penetrating through a center hole of the base of the screw press body, and the ejector rod bracket is installed on the bottom face of the base of the screw press body and used for supporting the boss of the ejector rod. According to the rigid ejection synchronous ejection device, an existing sliding block return stroke driving force is utilized, an ejection cylinder does not need to be additionally manufactured, cost is saved, and manufacturing cost is low. And additional material jacking power is not needed, so that energy is saved. The device can be widely applied to the screw press.

Description

Technical Field

[0001] This invention relates to a rigid ejector synchronous ejection device, which can be widely used in screw presses. Background Art

[0002] After the forging is formed in the die cavity, it needs to be ejected from the die cavity in a timely manner. When the ejection force required for the forging is large, a large-diameter cylinder or hydraulic cylinder needs to be specially manufactured and installed under the machine base to eject the forging. The manufacturing cost of cylinders or hydraulic cylinders is relatively expensive, which increases the manufacturing cost of the equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a rigid ejector synchronous ejection device that utilizes the existing slider return drive force, eliminates the need for additional ejector cylinders, saves costs, and is low-cost and energy-efficient.

[0004] To achieve the aforementioned objectives, the rigid ejector synchronous ejection device of the present invention includes a plurality of ejector drive rods with connecting threads at both ends and symmetrically mounted on the slider of a screw press via fastening nuts; an ejector seat with ejector rod return holes and mounted on the ejector drive rods via fastening nuts; a cylinder body with ejector air inlet and return air inlet and mounted on the ejector seat; a cylinder piston mounted inside the cavity of the cylinder body; an ejector insert plate with ejector rod return holes and connected to the cylinder piston via fastening nuts; an ejector rod located above the ejector insert plate, having a boss and mounted through the center hole of the screw press base; and an ejector rod bracket mounted on the bottom surface of the screw press base for supporting the boss of the ejector rod.

[0005] In the rigid ejector synchronous ejection device of the present invention, the plurality of ejector drive rods 1 are 2 or 4.

[0006] In the rigid ejection device of the present invention, there should be a certain gap between the ejector rod and the ejector rod return hole of the ejector seat and the ejector rod return hole of the ejector plate; the diameter of the ejector rod return hole of the ejector seat and the ejector rod return hole of the ejector plate should be greater than the outer diameter of the ejector rod.

[0007] The rigid ejector synchronous ejection device of the present invention operates on the following principle:

[0008] (1) The ejection of the forging is controlled by changing the position of the ejector rod return hole of the ejector plate. After the forging is forged in the mold cavity, air enters through the ejector air inlet, pushing the ejector plate to move to the left and blocking the ejector rod return hole of the ejector seat. The slider moves upward, driving the ejector seat to move upward synchronously through the ejector drive rod. The ejector seat then drives the ejector plate to move upward. When the ejector plate installed on the ejector seat contacts the ejector rod, it pushes the ejector rod to move upward and ejects the forging.

[0009] (2) After the top part is completed, air enters through the return air inlet and the top material insert plate moves to the right. At this time, the top material rod return hole of the top material seat and the top material rod return hole of the top material insert plate are in a concentric state. The top material rod passes through the top material rod return hole of the top material insert plate and falls into the top material rod return hole of the top material seat, completing one working cycle.

[0010] This invention relates to a rigid ejector synchronous ejection device that utilizes the existing slide return drive force, eliminating the need for an additional ejector cylinder, thus saving costs and reducing manufacturing costs. It also eliminates the need for additional ejector power, saving energy. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 yes Figure 1 AA section view in. Detailed Implementation

[0014] exist Figure 1 , Figure 2 The rigid ejector synchronous ejection device of the present invention includes a plurality of ejector drive rods 1 with connecting threads at both ends and symmetrically mounted on the slider 8 of a screw press by fastening nuts; an ejector seat 2 with ejector rod return holes a and mounted on the ejector drive rods by fastening nuts; a cylinder body 3 with ejector air inlet holes b and return air inlet holes c and mounted on the ejector seat; a cylinder piston 4 installed inside the cavity of the cylinder body; an ejector insert plate 5 with ejector rod return holes d and connected to the cylinder piston by fastening nuts; an ejector rod 6 located above the ejector insert plate, with a boss e and installed through the center hole of the screw press base 9; and an ejector rod bracket 7 installed on the bottom surface of the screw press base to support the boss of the ejector rod.

[0015] In the rigid ejector synchronous ejection device of the present invention, the plurality of ejector drive rods 1 are 2 or 4.

[0016] In the rigid ejection device of the present invention, there should be a certain gap between the ejector rod and the ejector rod return hole of the ejector seat and the ejector rod return hole of the ejector plate; the diameter of the ejector rod return hole of the ejector seat and the ejector rod return hole of the ejector plate should be greater than the outer diameter of the ejector rod.

[0017] The rigid ejector synchronous ejection device of the present invention, in Figure 1 In the middle, the die cavity 10 is installed on the top surface of the base of the screw press, and the forging 11 is located in the die cavity.

[0018] The rigid ejector synchronous ejection device of the present invention, in Figure 1In the middle, the top material insertion plate's top material rod return hole is at the top material position m, and the top material insertion plate's top material rod return hole is at the top material rod return position n.

[0019] The rigid ejector synchronous ejection device of the present invention is described above only as a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention, and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A rigid material synchronous ejection device, characterized in that: It includes a plurality of ejection driving rods with connecting threads at both ends, which are symmetrically installed on the slider of the screw press through fastening nuts, an ejection seat with an ejection rod return hole and installed on the ejection driving rod through a fastening nut, a cylinder body with an ejection air inlet hole and a return air inlet hole and installed on the ejection seat, a cylinder piston installed in the cylinder body cavity, an ejection plug plate with an ejection rod return hole and connected to the cylinder piston through a fastening nut, an ejection rod located above the ejection plug plate, with a boss and installed through the center hole of the screw press body base, and an ejection rod bracket installed on the bottom surface of the screw press body base and used for supporting the boss of the ejection rod.

2. The rigid material synchronous ejection device according to claim 1 is characterized in that: The plurality of material ejection driving pull rods (1) may be 2 or 4.

3. The rigid material synchronous ejection device according to claim 1 is characterized in that: There should be a certain gap between the ejector rod and the ejector rod return hole of the ejector seat and the ejector rod return hole of the ejector insert plate; the diameters of the ejector rod return hole of the ejector seat and the ejector rod return hole of the ejector insert plate should be larger than the outer diameter of the ejector rod.

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