Powder metallurgy product finishing machine scrap ejector rod connecting device

Abstract

The application relates to a powder metallurgy product finishing machine material returning top rod connecting device, which relates to metal powder forming equipment. The device comprises a first swing rod hinged below a top rod support through a support, a second swing rod hinged with the first swing rod, a lower connecting rod moving up and down through a power mechanism, the lower connecting rod driving the first swing rod to rotate around a first pin shaft; the support is fixed on the top rod support, the second swing rod drives the support seat to move up and down, and the direction is opposite to that of the lower connecting rod; the material returning top rod drives the core rod fixedly connected to the top part of the material returning top rod to move up and down; when the support seat moves up and down, the material returning top rod is limited by a linear bearing in the top rod support, can only move up and down, the first swing rod and / or the second swing rod are forced to rotate around the rotating shaft, and the support seat moves horizontally; thus, the abrasion of the material returning top rod is reduced, and the service life of the material returning top rod is prolonged.

Description

Technical Field

[0001] This utility model relates to metal powder forming equipment, and more particularly to the structural improvement of the ejector pin connecting device of the powder metallurgy finishing machine. Background Technology

[0002] A finishing machine is a device used for precision machining of metal materials (such as plates and pipes), primarily to improve the surface quality, dimensional accuracy, and mechanical properties of the materials. The operation mainly involves placing the product in a female mold, applying pressure to the product through upper and lower punches, then releasing the pressure to eject the product from the mold, resulting in a product that meets design requirements. A ejector pin is a rod-shaped part that directly or indirectly ejects workpieces or scrap materials through an upward motion. The ejector pin is connected to a lower connecting rod via a swing arm, and the lower connecting rod is connected to a power transmission mechanism. Typically, the finishing machine's power source drives a flywheel via a V-belt, and the flywheel then drives an eccentric crankshaft via a gear mechanism. During customer use, the ejector pin experiences frequent surface wear, becoming a consumable part of the equipment and requiring frequent disassembly, replacement, and maintenance. This not only reduces production efficiency but also increases processing costs. Therefore, reducing the wear rate of the ejector pin is a crucial technical problem that needs to be solved in this case. Utility Model Content

[0003] To address the above problems, this utility model provides a compact, easy-to-install, and flexible unloading ejector pin connection device for powder metallurgy product finishing machines that reduces wear on the ejector pin surface.

[0004] The technical solution of this utility model is:

[0005] The unloading ejector pin connecting device for a powder metallurgy finishing machine includes:

[0006] The lower connecting rod is located on the side of the frame;

[0007] The top rod is supported and fixedly installed inside the frame;

[0008] The first swing arm is hinged to the bottom of the top rod support via a support;

[0009] The second pendulum is hinged at one end to the end of the first pendulum.

[0010] The support base is hinged at the bottom to the other end of the second swing rod and connected at the top to the ejector rod; the ejector rod is vertically slidably disposed within the ejector rod support.

[0011] Specifically, the top of the support is fixedly connected to the top rod support;

[0012] The first pendulum is hinged to the bottom of the support.

[0013] The support provides a mounting cavity with a bottom opening;

[0014] The first rocker arm is hinged within the mounting cavity.

[0015] Specifically, the first swing arm has spacers on both sides that fit against the inner wall of the support.

[0016] Specifically, the top of the support base is provided with a T-shaped groove;

[0017] The bottom of the ejector pin is provided with a T-shaped part that matches the T-slot.

[0018] Specifically, the first rocker arm is hinged to the support via a first pin.

[0019] Specifically, a V-shaped bearing is fixedly installed at the other end of the second swing arm;

[0020] The support base is connected to the V-bearing via a second pin.

[0021] Specifically, a connecting groove is provided in the middle of one end of the second swing arm;

[0022] The first rocker arm has a connecting protrusion at its end that is adapted to the connecting groove. The connecting protrusion extends into the connecting groove and is hinged by a pivot.

[0023] The lower connecting rod of this utility model moves up and down through a power mechanism, driving the first swing rod to rotate around the first pin shaft. The support is fixed on the top rod support, and the second swing rod drives the support seat to move up and down in the opposite direction to the lower connecting rod. The ejector rod moves up and down along with the support seat, driving the core rod fixedly connected to its top to move up and down. When the support seat moves up and down, the ejector rod is limited by the linear bearing inside the top rod support and can only move up and down. The first swing rod and / or the second swing rod are forced to rotate around the pivot, and the support seat moves horizontally. This reduces the wear of the ejector rod and increases its service life. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the guide sleeve installation structure;

[0026] Figure 3 yes Figure 2 Schematic diagram of the A-direction structure;

[0027] In the diagram, 100 represents the lower connecting rod.

[0028] 200 is the top rod support.

[0029] 300 is the first lever, 310 is the spacer.

[0030] 400 is the second rocker arm, and 410 is a V-bearing.

[0031] 500 is the support base, 600 is the ejector pin, 700 is the support bracket, and 800 is the guide sleeve. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following is for reference. Figure 1-3 Describe this utility model;

[0036] The unloading ejector pin connecting device for a powder metallurgy finishing machine includes:

[0037] The lower connecting rod 100 is located on the side of the frame and is connected to the power mechanism, and moves up and down reciprocally on the side of the frame;

[0038] The top rod support 200 is fixedly installed inside the frame;

[0039] The first swing arm 300 is hinged to the bottom of the top rod support 200 via the support 700; the top of the support 700 is fixedly connected to the top rod support 200.

[0040] Specifically,

[0041] The support 700 has a mounting cavity with a bottom opening;

[0042] The first swing arm 300 is hinged within the mounting cavity, that is, the first swing arm 300 is hinged to the bottom of the support 700.

[0043] The second swing arm 400 is hinged at one end to the end of the first swing arm 300;

[0044] The support base 500 is hinged at the bottom to the other end of the second swing rod 400 and connected at the top to the ejector rod 600; the ejector rod 600 is vertically slidably disposed within the rod support 200.

[0045] Further optimization involves movably mounting the ejector rod 600 within the ejector rod support 200 via a guide sleeve 800. A pair of symmetrically arranged planes are provided on the outer circular surface where the guide sleeve 800 connects to the ejector rod support 200. The side of the ejector rod support 200 is provided with an installation groove that matches the guide sleeve 800. The guide sleeve 800 is directly inserted into the installation groove on the side of the ejector rod support 200 according to the pair of planes and can be fixed using connectors, greatly facilitating the disassembly and installation of the ejector rod 600.

[0046] The top of the support base 500 is provided with a T-shaped groove;

[0047] The bottom of the ejector rod 600 is provided with a T-shaped part that fits into the T-slot. The T-shaped part slides into the T-slot and is limited by baffles and other measures to prevent it from sliding out, while also facilitating the replacement and maintenance of the ejector rod 600.

[0048] Further description of the pendulum:

[0049] The first swing arm 300 has spacers 310 on both sides that fit against the inner wall of the support 700.

[0050] The first rocker arm 300 is hinged to the support 700 via a first pin.

[0051] A connecting groove is provided in the middle of one end of the second swing arm 400;

[0052] The first rocker arm 300 has a connecting protrusion at its end that is adapted to the connecting groove. The connecting protrusion extends into the connecting groove and is hinged by a pivot.

[0053] The other end of the second swing arm 400 is provided with a fixed V-type bearing 410;

[0054] The support base 500 is connected to the V-bearing 410 via a second pin.

[0055] In this case, the lower connecting rod 100 moves up and down via a power mechanism, driving the first swing rod 300 to rotate around the first pin. The first pin is fixed to the support 700, which is fixed to the top rod support 200. The second swing rod 400 drives the support seat 500 to move up and down in the opposite direction to the lower connecting rod 100. The ejector top rod 600 moves up and down along with the support seat 500, driving the core rod fixedly connected to its top to move up and down. When the support seat 500 moves up and down, the ejector top rod 600 is limited by the linear bearing inside the top rod support 200 and can only move up and down. The first swing rod 300 and / or the second swing rod 400 are forced to rotate around the pivot, and the support seat 500 moves horizontally. The V-shaped bearing moves horizontally along the V-shaped guide rail, thereby reducing the wear of the ejector top rod 600 and increasing its service life.

[0056] Regarding the information disclosed in this case, the following points need to be clarified:

[0057] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case; other structures can refer to the general design.

[0058] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0059] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A material ejector pin connecting device for a powder metallurgy finishing machine, characterized in that, include: The lower connecting rod (100) is located on the side of the frame; A top rod support (200) is fixedly installed inside the frame; The first swing arm (300) is hinged below the top rod support (200) via a support (700); The second swing arm (400) is hinged at one end to the end of the first swing arm (300); The support base (500) is hinged at the bottom to the other end of the second swing rod (400) and connected at the top to the ejector rod (600); the ejector rod (600) is vertically slidably disposed within the rod support (200).

2. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 1, characterized in that, The top of the support (700) is fixedly connected to the top rod support (200); The first rocker arm (300) is hinged to the bottom of the support (700).

3. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 2, characterized in that, The support (700) is provided with a mounting cavity with a bottom opening; The first rocker arm (300) is hinged within the mounting cavity.

4. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 3, characterized in that, The first swing arm (300) has a spacer (310) on each side that fits against the inner wall of the support (700).

5. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 1, characterized in that, The top of the support base (500) is provided with a T-shaped groove; The bottom of the ejector rod (600) is provided with a T-shaped part that is adapted to the T-groove.

6. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 1, characterized in that, The first rocker arm (300) is hinged to the support (700) via a first pin.

7. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 1, characterized in that, The other end of the second rocker arm (400) is provided with a fixed V-type bearing (410); The support base (500) is connected to the V-bearing (410) via a second pin.

8. The unloading ejector rod connecting device for a powder metallurgy product finishing machine according to claim 1, characterized in that, A connecting groove is provided at the middle of one end of the second swing arm (400); The first rocker arm (300) has a connecting protrusion at its end that is adapted to the connecting groove. The connecting protrusion extends into the connecting groove and is hinged by a pivot.

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