CN110142412B

CN110142412B - Screening feed mechanism of irregular MIM shaping product

Info

Publication number: CN110142412B
Application number: CN201910271237.6A
Authority: CN
Inventors: 刘光富
Original assignee: Qingdao Yingtai Aotong Intelligent Technology Co ltd
Current assignee: Qingdao Yingtai Aotong Intelligent Technology Co ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2021-06-04
Anticipated expiration: 2039-04-04
Also published as: CN110142412A

Abstract

The invention relates to a feeding mechanism, in particular to a screening and feeding mechanism for irregular MIM (metal injection molding) molded products. The device comprises a material channel plate, an array material channel, a limiting thimble driving mechanism, a thimble driving mechanism, a detection mechanism and a discharging material limiting mechanism; the whole row of material is said and is set up on the material guidance tape, whole row of material is said and is provided with whole row of material and says the apron, whole row of material is said and is provided with the discharge gate, spacing thimble and thimble set gradually and pass through spacing thimble actuating mechanism and thimble actuating mechanism drive respectively in discharge gate department, detection mechanism sets up in one side with the corresponding thimble of thimble, ejection of compact limit material mechanism sets up in one side of discharge gate and is used for the interval material ejection of compact. The feeding mechanism is simple and novel in structure and convenient to use, is suitable for feeding materials with a specified shape and materials with an irregular shape, solves the technical problem that the existing feeding mechanism can only regularly feed materials, and has important practical significance.

Description

Screening feed mechanism of irregular MIM shaping product

Technical Field

The invention relates to a feeding mechanism, in particular to a screening and feeding mechanism for irregular MIM (metal injection molding) molded products.

Background

The metal powder injection molding (MIM) technology is a new near-net-shape molding technology. The method integrates the products of the interdiffusion and intersection of multiple subjects such as plastic injection molding technology, polymer chemistry, powder metallurgy technology, metal material technology and the like, can be used for injecting and molding blanks by utilizing a mold and quickly manufacturing structural parts with high density, high precision, high strength and three-dimensional complex shapes by sintering, particularly small parts with complex shapes which are processed by mechanical processing and other technological methods or are difficult to process, can be freely completed by the MIM technology, has the advantages of low cost, high efficiency, good consistency and the like, is easy to form batch production, and is known as the current most popular part molding technology. The existing MIM molded product is regularly round in material supply process, and can be directly supplied through a thimble in the material supply process. However, the previous feeding mode cannot be used for irregular materials, which brings great trouble to production. Therefore, there is a need to develop a screening and feeding mechanism suitable for MIM molded products having not only regular shapes but also irregular shapes.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the MIM screening and feeding mechanism which is only suitable for regular shapes and is also suitable for irregular shapes.

The technical scheme of the invention is as follows:

a screening and feeding mechanism for irregular MIM molded products comprises a material channel plate, an array material channel, a limiting ejector pin driving mechanism, an ejector pin driving mechanism, a detection mechanism and a discharging and material limiting mechanism; the whole row of material is said and is set up on the material guidance tape, whole row of material is said and is provided with whole row of material and says the apron, whole row of material is said and is provided with the discharge gate, spacing thimble and thimble set gradually and pass through spacing thimble actuating mechanism and thimble actuating mechanism drive respectively in discharge gate department, detection mechanism sets up in one side with the corresponding thimble of thimble, ejection of compact limit material mechanism sets up in one side of discharge gate and is used for the interval material ejection of compact.

Furthermore, limit thimble actuating mechanism, thimble actuating mechanism, detection mechanism and ejection of compact limit material mechanism set up 1 group at least.

Further, still include thimble board, thimble bottom plate and guiding axle, thimble board and thimble bottom plate and material guidance tape parallel arrangement, the guiding axle passes thimble board one end and fixes on the material guidance tape, and the other end is fixed on thimble bottom plate, the thimble board can be on the guiding axle up-and-down motion.

Furthermore, the thimble plate is connected with the guide shaft through a linear bearing, the bottom end of the thimble is fixed on the thimble plate, the thimble driving mechanism is fixed on the thimble base plate, and the output end of the thimble driving mechanism is connected with the thimble plate.

Furthermore, the limiting thimble driving mechanism is fixed on the thimble base plate, and the limiting thimble penetrates through the thimble plate to be connected with the output end of the limiting thimble driving mechanism.

Furthermore, the limiting ejector pin driving mechanism is set to be a limiting ejector pin cylinder, and the ejector pin driving mechanism is set to be an ejector pin cylinder.

Further, the discharge hole is at least set to be 1.

Further, the detection mechanism is set to be an optical fiber sensor, and the model of the optical fiber sensor is FU-65X.

Furthermore, ejection of compact limit mechanism is including the sliding plate cylinder, floating joint, sliding plate and the spacing apron that connect gradually, the output of sliding plate cylinder is connected with the sliding plate through floating joint, sliding plate and spacing apron fixed connection, be provided with the spacing mouth of the ejection of compact on the spacing apron.

The invention achieves the following beneficial effects:

according to the screening and feeding mechanism for the irregular MIM molded product, through the arrangement of the material channel plate, the arrangement of the material channels, the limiting ejector pins, the limiting ejector pin driving mechanism, the ejector pins, the ejector pin driving mechanism, the detection mechanism and the discharging and material limiting mechanism, materials in different regular shapes can be fed through the arrangement of the material channels, and the accurate feeding of the materials is guaranteed through the synergistic effect of the limiting ejector pins, the ejector pins and the detection mechanism. The interval that can effectual assurance material ejection of compact through ejection of compact limit material mechanism avoids the looks mutual friction between the material, guarantees the integrality of material.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a schematic view of the lower part of the chute plate of the present invention.

FIG. 4 is a schematic view of the connection structure of the position-limiting thimble, the position-limiting thimble cylinder, the thimble and the thimble cylinder according to the present invention.

Wherein, 1, a sliding plate cylinder; 2. a floating joint; 3. a sliding plate; 4. a material channel plate; 5. arranging material channel cover plates; 6. an ejector plate; 7. a limit thimble cylinder; 8. a limiting cover plate; 9. a thimble cylinder; 10. a limiting thimble; 11. a thimble; 12. an optical fiber sensor; 13. a linear bearing; 14. a guide shaft; 15. and a thimble bottom plate.

Detailed Description

To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.

As shown in fig. 1-4, the screening and feeding mechanism for irregular MIM molded products comprises a material channel plate 4, an array material channel, a limit thimble 10, a limit thimble cylinder 7, a thimble 11, a thimble cylinder 9, a discharging and material limiting mechanism and an optical fiber sensor 12 with model number FU-65X. The material aligning channel is arranged on the material channel plate 4, an aligning material channel cover plate 5 is arranged on the aligning material channel, and a discharge hole is formed in the aligning material channel. The limiting ejector pins 10 and the ejector pins 11 are sequentially arranged at the discharge port and are driven by the limiting ejector pin air cylinders 7 and the ejector pin air cylinders 9 respectively. Specifically, still include thimble board 6, thimble bottom plate 15 and guiding axle 14, thimble board 6 and thimble bottom plate 15 and material way board 4 parallel arrangement, guiding axle 14 passes thimble board 6 one end and fixes on material way board 4, and the other end is fixed on thimble bottom plate 15. The ejector plate 6 is connected with a guide shaft 14 through a linear bearing 13, can move on the guide shaft 14 and can move up and down on the guide shaft 14. The bottom end of the ejector pin 11 is fixed on the ejector pin plate 6, the ejector pin cylinder 9 is fixed on the ejector pin base plate 15, and the output end of the ejector pin cylinder 9 is connected with the ejector pin plate 6. The limiting ejector pin cylinder 7 is fixed on the ejector pin base plate 15, and the limiting ejector pin 10 penetrates through the ejector pin plate 6 and is connected with the output end of the limiting ejector pin cylinder 7.

The optical fiber sensor 12 is arranged on one side of the ejector pin 11 corresponding to the ejector pin 11, and the discharging limiting mechanism is arranged on one side of the discharging port and used for discharging materials at intervals. Specifically, the discharging material limiting mechanism comprises a sliding plate cylinder 1, a floating joint 2, a sliding plate 3 and a limiting cover plate 8 which are sequentially connected, the output end of the sliding plate cylinder 1 is connected with the sliding plate 3 through the floating joint 2, the sliding plate 3 is fixedly connected with the limiting cover plate 8, and an inwards-concave discharging limiting opening is formed in the middle of one side of the limiting cover plate 8.

In this embodiment, the discharge gate sets up to two, sets up respectively at the both ends that the whole row material was said, spacing thimble 10, spacing thimble cylinder 7, thimble 11, thimble cylinder 9, optical fiber sensor 12 and ejection of compact limit material mechanism set up 1 respectively in corresponding discharge gate department and organize.

In a specific using process, the sliding plate 3 is closed under the driving of the sliding plate cylinder 1, materials are blown into the whole row of material channels through compressed air, whether the materials are in place or not is detected through the optical fiber sensor 12, and after the materials are in place, the limiting ejector pin 10 jacks up the materials to limit a second material; subsequently, the sliding plate 3 is opened, the thimble 11 jacks up the material, and the material is further taken away through the material taking device.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a screening feed mechanism of irregular MIM shaping product which characterized in that: the device comprises a material channel plate, an array material channel, a limiting thimble driving mechanism, a thimble driving mechanism, a detection mechanism and a discharging material limiting mechanism; the material conveying device comprises a material conveying plate, a detection mechanism, a material discharging limiting mechanism and a material conveying plate, wherein the material conveying plate is arranged on the material conveying plate; the discharging material limiting mechanism comprises a sliding plate cylinder, a floating joint, a sliding plate and a limiting cover plate which are sequentially connected, the output end of the sliding plate cylinder is connected with the sliding plate through the floating joint, the sliding plate is fixedly connected with the limiting cover plate, and a discharging limiting opening is formed in the limiting cover plate.

2. The irregular MIM molded product placement and feeding mechanism of claim 1, wherein: the limiting ejector pins, the limiting ejector pin driving mechanism, the ejector pins, the ejector pin driving mechanism, the detection mechanism and the discharging material limiting mechanism are at least arranged into 1 group.

3. The irregular MIM molded product placement and feeding mechanism of claim 1, wherein: the material feeding device is characterized by further comprising an ejector plate, an ejector base plate and a guide shaft, wherein the ejector plate and the ejector base plate are arranged in parallel with the material channel plate, the guide shaft penetrates through one end of the ejector plate and is fixed on the material channel plate, the other end of the ejector plate is fixed on the ejector base plate, and the ejector plate can move up and down on the guide shaft.

4. The irregular MIM molded product placement and feeding mechanism according to claim 3, wherein: the thimble plate is connected with the guide shaft through a linear bearing, the bottom end of the thimble is fixed on the thimble plate, the thimble driving mechanism is fixed on the thimble base plate, and the output end of the thimble driving mechanism is connected with the thimble plate.

5. The irregular MIM molded product placement and feeding mechanism according to claim 4, wherein: the limiting thimble driving mechanism is fixed on the thimble base plate, and the limiting thimble penetrates through the thimble plate to be connected with the output end of the limiting thimble driving mechanism.

6. The screen loading mechanism of irregular MIM molded product according to claim 1, 2, 4 or 5 wherein: the limiting ejector pin driving mechanism is set to be a limiting ejector pin air cylinder, and the ejector pin driving mechanism is set to be an ejector pin air cylinder.

7. The irregular MIM molded product placement and feeding mechanism of claim 1, wherein: the discharge hole is at least set to be 1.

8. The irregular MIM molded product screen loading mechanism according to claims 1 or 2, wherein: the detection mechanism is set as an optical fiber sensor, and the model of the optical fiber sensor is FU-65X.