Powder metallurgy forming mechanism

Abstract

The utility model relates to the technical field of metallurgy forming, and discloses a powder metallurgy forming mechanism which comprises a base and supporting columns fixed to the four corners of the top of the base, the top of the base is fixedly connected with a downward pressing base, the two ends of the bottom of the base are fixedly connected with supporting plates, and the side walls of the supporting plates are rotationally connected with rotating rods. The tail end of the rotating rod is fixedly connected with a rotating disc, and the eccentric position of the side wall of the rotating disc is rotationally connected with a rotating block. The bottom of the base is slidably connected with an ejector rod, the top end of the ejector rod extends to an inner cavity of the downward pressing seat, the bottom end of the ejector rod is fixedly connected with a movable rod, the two ends of the movable rod are fixedly connected with connecting plates, and sliding grooves are formed in the side walls of the connecting plates. According to the scheme, when a large number of workpieces are faced, material taking operation can be rapidly completed, the demolding efficiency of the metal powder workpieces is improved, residual metal powder is collected through the collecting box, and waste of the metal powder is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical forming technical field, concretely is powder metallurgy forming mechanism. BACKGROUND

[0002] Powder metallurgy is a process technology for preparing metal powder or using metal powder as raw material, through forming and sintering, to manufacture metal materials, composite materials and various types of products. The specific powder metallurgy forming is one of the basic processes in powder metallurgy production, and the purpose is to make loose metal, ceramic or other material powder into semi-finished products with predetermined geometric shape, size, density and strength through pressure in a mold.

[0003] The utility model discloses a kind of powder metallurgy forming machines of patent application publication No.201920563555.5, including base, the top end surface of base is fixed with lower pressing plate, the inner side of lower pressing plate is equipped with placing groove, the inner wall of placing groove is symmetrically equipped with first sliding slot, the top end of first sliding slot is equipped with second sliding slot relative to the inner wall of placing groove, the inner side of lower pressing plate is provided with middle plate, the two sides of middle plate are symmetrically fixed with multiple sliding protrusions, and middle plate is slidably connected with first sliding slot and second sliding slot by sliding protrusion;By the middle plate of design, the present integral lower pressing plate is changed into detachable structure, that is, when middle plate is damaged, only damaged middle plate needs to be disassembled and replaced or repaired, not only very simple to operate, but also reduce the problems of lower pressing plate maintenance.

[0004] According to the above patent, there is a powder metallurgy forming mechanism, and there are still some shortcomings in actual use. The most obvious one is that after the metal powder stamping is completed, the workpiece is usually taken out by the worker using clamping tools. When facing a large number of workpieces, the manual taking-out efficiency is low, and the demolding efficiency of the metal powder workpiece is reduced. Therefore, we propose a powder metallurgy forming mechanism. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing powder metallurgy forming mechanism to solve the problems in the above background technology.

[0006] In order to achieve the above-mentioned purpose of the invention, the utility model provides the following technical scheme:

[0007] The application is as follows: a powder metallurgy forming mechanism, comprising: a base and a support column fixed at the top four corners of the base, a lower pressing seat fixedly connected to the top of the base, support plates fixedly connected to the bottom ends of the base, a rotating rod rotatably connected to the side wall of the support plate, a rotating disc fixedly connected to the end of the rotating rod, and a rotating block rotatably connected to the eccentric position of the side wall of the rotating disc.

[0008] A top rod is slidably connected to the bottom of the base, the top end of the top rod extends into the inner cavity of the lower pressure seat, a movable rod is fixedly connected to the bottom end of the top rod, and connecting plates are fixedly connected to both ends of the movable rod. A sliding groove is opened on the side wall of the connecting plate, and the rotating block is slidably connected to the inner cavity of the sliding groove. A driving component for driving the two sets of rotating rods to rotate synchronously is provided on the support plate.

[0009] As a preferred technical solution of this application, a collection box is fixedly connected to both sides of the lower pressure seat.

[0010] As a preferred technical solution of this application, the driving component includes a rotating shaft, which is rotatably connected between two sets of support plates. Synchronous pulleys are fixedly connected to both ends of the rotating shaft and the side wall of the rotating rod, and a synchronous belt is provided between the two sets of synchronous pulleys.

[0011] As a preferred technical solution of this application, a first motor for driving the rotating shaft to rotate is fixedly connected to the side wall of a set of support plates.

[0012] As a preferred technical solution of this application, a mounting bracket is fixedly connected to the top of the support column, a hydraulic cylinder is fixedly connected to the top of the mounting bracket, and an upper pressure head is fixedly connected to the power output end of the hydraulic cylinder.

[0013] As a preferred technical solution of this application, a fixed frame is fixedly connected between the side walls of the two sets of support plates, a reciprocating screw is rotatably connected to the inner cavity of one set of fixed frames, a movable block is threadedly connected to the outer side wall of the reciprocating screw, one end of the movable block is slidably connected to the inner cavity of the other set of fixed frames, a scraper is fixedly connected to the bottom of the movable block, guide plates are fixedly connected to both ends of the side wall of the scraper, and a second motor for driving the reciprocating screw to rotate is fixedly connected to the side wall of one set of fixed frames.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In the scheme of this application:

[0016] 1. The drive unit drives two sets of rotating rods to rotate synchronously. The rotating rods drive the turntable and rotating block to rotate. Since the rotating block is set at the eccentric position of the turntable, it can slide in the groove on the connecting plate when rotating. The connecting plate drives the movable rod and the ejector rod to move longitudinally back and forth. The ejector rod pushes the workpiece out of the lower pressure seat. When dealing with a large number of workpieces, it can quickly complete the material handling operation and improve the demolding efficiency of metal powder workpieces.

[0017] 2. The reciprocating screw is driven to rotate by the second motor. The reciprocating screw drives the moving block and scraper to move horizontally back and forth. The scraper, in conjunction with the guide plate, cleans the metal powder scattered on the surface of the lower pressure seat. While cleaning the surface of the lower pressure seat, the scraper can also push the workpiece out, further improving the discharge efficiency. The residual metal powder is collected by the collection box, reducing the waste of metal powder. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 A perspective view of the powder metallurgy forming mechanism provided in this application;

[0021] Figure 2 A partial structural diagram of the powder metallurgy forming mechanism provided in this application;

[0022] Figure 3 The diagram shows the structure of the lower pressure seat of the powder metallurgy forming mechanism provided in this application.

[0023] Figure 4 The bottom view of the fixing frame of the powder metallurgy forming mechanism provided in this application.

[0024] In the diagram: 100, base; 110, lower pressure seat; 111, collection box; 120, support plate; 130, rotating rod; 131, turntable; 132, rotating block; 140, top rod; 141, movable rod; 142, connecting plate; 150, rotating shaft; 151, synchronous pulley; 160, first motor; 200, support column; 210, mounting bracket; 220, hydraulic cylinder; 221, upper pressure head; 230, fixed frame; 231, reciprocating screw; 232, movable block; 240, scraper; 241, guide plate; 250, second motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4A powder metallurgy forming mechanism includes: a base 100 and support columns 200 fixed at the four corners of the top of the base 100. The support columns 200 support the mounting frame 210. A lower pressure seat 110 is fixedly connected to the top of the base 100. The lower pressure seat 110 works with an upper pressure head 221 to process metal powder. Support plates 120 are fixedly connected to both ends of the bottom of the base 100. The support plates 120 support the rotating rod 130. The rotating rod 130 is rotatably connected to the side wall of the support plate 120. The rotating rod 130 drives the turntable 131 and the rotating block 132 to rotate. The end of the rotating rod 130 is fixedly connected to the turntable 131. A rotating block is rotatably connected to the eccentric part of the side wall of the turntable 131. Rotating block 132 is used to drive connecting plate 142 to move longitudinally back and forth; a push rod 140 is slidably connected to the bottom of base 100, and the workpiece in the lower pressure seat 110 is pushed out by the push rod 140. The top end of push rod 140 extends to the inner cavity of lower pressure seat 110. A movable rod 141 is fixedly connected to the bottom end of push rod 140. The movable rod 141 and connecting plate 142 facilitate the longitudinal back and forth movement of push rod 140. The two ends of movable rod 141 are fixedly connected to connecting plate 142. A sliding groove is opened on the side wall of connecting plate 142. Rotating block 132 is slidably connected to the inner cavity of the sliding groove. A driving component is provided on support plate 120 for driving the two sets of rotating rods 130 to rotate synchronously.

[0027] Please see Figures 1-3 The two side walls of the lower pressure seat 110 are fixedly connected to the collection box 111, which collects the metal powder remaining on the surface of the lower pressure seat 110.

[0028] Please see Figure 2 The driving component includes a rotating shaft 150, which is rotatably connected between two sets of support plates 120. Both ends of the rotating shaft 150 and the side walls of the rotating rod 130 are fixedly connected to synchronous pulleys 151. A synchronous belt is provided between the two sets of synchronous pulleys 151. The rotating shaft 150 drives the two sets of rotating rods 130 to rotate through the synchronous pulleys 151 and the synchronous belt.

[0029] Please see Figures 1-3 A first motor 160 for driving the rotating shaft 150 to rotate is fixedly connected to the side wall of a set of support plates 120.

[0030] Please see Figure 1 and Figure 2 A mounting bracket 210 is fixedly connected to the top of the support column 200, and a hydraulic cylinder 220 is fixedly connected to the top of the mounting bracket 210. An upper pressure head 221 is fixedly connected to the power output end of the hydraulic cylinder 220, and the upper pressure head 221 is raised and lowered by the hydraulic cylinder 220.

[0031] Please see Figures 1-4A fixed frame 230 is fixedly connected between the side walls of the two sets of support plates 120. A reciprocating screw 231 is rotatably connected to the inner cavity of one set of fixed frames 230. A movable block 232 is threadedly connected to the outer wall of the reciprocating screw 231. One end of the movable block 232 is slidably connected to the inner cavity of the other set of fixed frames 230. A scraper 240 is fixedly connected to the bottom of the movable block 232. A guide plate 241 is fixedly connected to both ends of the side wall of the scraper 240. A second motor 250 for driving the reciprocating screw 231 to rotate is fixedly connected to the side wall of one set of fixed frames 230. The reciprocating screw 231 is driven to rotate by the second motor 250. The reciprocating screw 231 drives the movable block 232 and the scraper 240 to move horizontally back and forth. The scraper 240, in conjunction with the guide plate 241, cleans the metal powder remaining on the surface of the lower pressure seat 110 and collects it through the collection box 111.

[0032] Specifically, in use, the powder metallurgy forming mechanism is first powered on, and the upper pressure head 221 is raised and lowered by the hydraulic cylinder 220. The upper pressure head 221, in conjunction with the lower pressure seat 110, processes the metal powder. Then, the first motor 160 is started, which drives the rotating shaft 150 to rotate. The rotating shaft 150, through the synchronous pulley 151 and synchronous belt, drives two sets of rotating rods 130 to rotate. The rotating rods 130 drive the turntable 131 and the rotating block 132 to rotate. At this time, the rotating block 132 slides on the connecting plate 1. The slide groove on 42 drives the connecting plate 142 and the movable rod 141 to move longitudinally back and forth. The movable rod 141 drives the push rod 140 to move, and the push rod 140 pushes the workpiece out of the lower pressure seat 110. Finally, the second motor 250 drives the reciprocating screw 231 to rotate. The reciprocating screw 231 drives the movable block 232 and the scraper 240 to move horizontally back and forth. The scraper 240, together with the guide plate 241, cleans the metal powder remaining on the surface of the lower pressure seat 110 and collects it through the collection box 111, thus completing the use of the mechanism.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy forming mechanism comprising: The base (100) and the support column (200) fixed at the top four corners of the base (100), characterized in that the top of the base (100) is fixedly connected with a pressing seat (110), the bottom of the base (100) is fixedly connected with a support plate (120), the side wall of the support plate (120) is rotatably connected with a rotating rod (130), the end of the rotating rod (130) is fixedly connected with a rotating disc (131), the side wall of the rotating disc (131) is eccentrically rotatably connected with a rotating block (132); The bottom of the base (100) is slidably connected with a top rod (140), the top end of the top rod (140) extends to the inner cavity of the pressing seat (110), the bottom end of the top rod (140) is fixedly connected with a movable rod (141), the two ends of the movable rod (141) are fixedly connected with a connecting plate (142), the side wall of the connecting plate (142) is provided with a sliding groove, the rotating block (132) is slidably connected in the inner cavity of the sliding groove, and the support plate (120) is provided with a driving piece for driving two groups of rotating rods (130) to rotate synchronously.

2. The powder metallurgical forming mechanism according to claim 1, characterized in that: The two side walls of the pressing seat (110) are fixedly connected with a collecting box (111).

3. The powder metallurgical forming mechanism according to claim 1, characterized in that: The driving piece comprises a rotating shaft (150), the rotating shaft (150) is rotatably connected between the two groups of support plates (120), the two ends of the rotating shaft (150) and the side wall of the rotating rod (130) are fixedly connected with synchronous wheels (151), and synchronous belts are arranged between the two groups of synchronous wheels (151).

4. The powder metallurgical forming mechanism according to claim 3, characterized in that: The side wall of one group of support plates (120) is fixedly connected with a first motor (160) for driving the rotating shaft (150) to rotate.

5. The powder metallurgy forming mechanism of claim 1, wherein: The top of the support column (200) is fixedly connected with a mounting rack (210), the top of the mounting rack (210) is fixedly connected with a hydraulic cylinder (220), and the power output end of the hydraulic cylinder (220) is fixedly connected with an upper pressing head (221).

6. The powder metallurgy forming mechanism of claim 1, wherein: The side walls between the two groups of support plates (120) are fixedly connected with a fixed frame (230), the inner cavity of one group of fixed frames (230) is rotatably connected with a reciprocating screw (231), the outer side wall of the reciprocating screw (231) is threadedly connected with a movable block (232), one end of the movable block (232) is slidably connected in the inner cavity of the other group of fixed frames (230), the bottom of the movable block (232) is fixedly connected with a scraper (240), the side walls of the scraper (240) are fixedly connected with flow guide plates (241) at both ends, and the side wall of one group of fixed frames (230) is fixedly connected with a second motor (250) for driving the reciprocating screw (231) to rotate.

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