Automatic compression molding equipment for hard alloy powder

Abstract

The utility model discloses hard alloy powder automatic compression molding equipment which comprises a box body, a feeding hopper is arranged at the top end of the box body, and two first smashing rollers matched with each other to smash metal powder agglomerates are arranged at the upper end of the box body. A filter screen plate located below the first crushing roller and a first guide plate arranged on one side of the inner wall of the box body are arranged in the box body, and the bottom end of the filter screen plate is flush with the bottom end of the first guide plate; according to the utility model, the crushing granularity of hard alloy powder agglomerates is ensured to be qualified, and the crushing effect of the hard alloy powder is improved; during discharging, the hard alloy powder passing through the filter screen plate moves downwards along the inclined second guide plate, meanwhile, the hard alloy powder subjected to secondary crushing through the second crushing roller moves downwards along the inclined third guide plate, and the hard alloy powder is discharged from the first discharging opening and the second discharging opening to enter the collecting hopper and finally discharged from the discharging pipe, so that the discharging is simple, and the efficiency is high. And the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hard alloy powder, in particular to automatic compression molding equipment for hard alloy powder. Background Art

[0002] Cemented carbide is a metal part made by sintering various metals and mixtures. Cemented carbide with different physical properties is obtained according to the mixture added. The production steps of cemented carbide are: granulating alloy powder and pressing it into plates through a hydraulic press. The pressed alloy powder plates are refined into cemented carbide materials through high temperature. In the process of pressing alloy powder into plates, the alloy powder needs to be placed in a box of fixed capacity, and the alloy powder in the box is pressed by a hydraulic press to form it.

[0003] For example, a Chinese authorized patent with application number CN202220606363.X discloses an automatic compression molding device for cemented carbide powder, including a box body, a stirring assembly is provided in the box body, the stirring assembly includes a first motor arranged above the box body, a support shaft is vertically provided in the box body, the first motor is close to the box body on one side through a vertically arranged first output shaft that penetrates the top wall of the box body and is connected to the support shaft, the outer wall of the support shaft is provided with a spiral blade for transporting the material at the bottom of the box body toward the top of the box body, a heating element is provided on the outer side of the spiral blade, a plurality of groups of crushing assemblies are distributed inside the box body, the crushing assemblies are used to crush the block material in the box body, and a tilting assembly is provided below the box body for tilting the box body so that the material in the box body can be poured out of the box body, thereby further breaking up the agglomerates of the powder material, making the powder material into a non-agglomerated state, and improving the production efficiency. It can be seen from this that the existing cemented carbide powder automatic molding equipment will have the problem of metal powder agglomeration during the production and processing of cemented carbide. It is only crushed by two simple gears meshing and stirred by spiral blades. The gear crushing and stirring are set in the same box. Some cemented carbide powder will fall from the spiral blades, affecting the effect of cemented carbide powder agglomeration crushing, and the discharge is troublesome and the efficiency is low. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides an automatic compression molding device for cemented carbide powder.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses an automatic compression molding device for cemented carbide powder, comprising a box body, a feeding hopper is arranged at the top of the box body, two first crushing rollers which cooperate with each other to crush metal powder agglomerates are arranged at the upper end of the box body, a filter screen plate located below the first crushing roller and a first guide plate arranged at one side of the inner wall of the box body are arranged inside the box body, the bottom end of the filter screen plate is flush with the bottom end of the first guide plate, and a discharge gap is reserved between the filter screen plate and the first guide plate, and two second crushing rollers which cooperate with each other to secondary crush filtered metal powder agglomerates are arranged inside the box body and are located just below the discharge gap.

[0007] As a preferred technical solution of the utility model, the inner cavity of the box body is provided with a second material guide plate which is inclined downward and guides the cemented carbide powder, and a first discharge port is left between the lowest end of the second material guide plate and the inner wall of the box body.

[0008] As a preferred technical solution of the utility model, the bottom ends of the filter screen plate and the first material guide plate are both provided with a protective baffle connected to the inner wall of the box body.

[0009] As a preferred technical solution of the utility model, a third material guide plate is provided on the protective baffle, which is inclined downward and located between the first material guide plate and the second material guide plate, and a second discharge port is left between the lowest end of the third material guide plate and the inner wall of the box.

[0010] As a preferred technical solution of the utility model, a plurality of heating tubes are equidistantly arranged on the lower end surfaces of the second material guide plate and the third material guide plate.

[0011] As a preferred technical solution of the utility model, the lowest end of the second material guide plate is provided with a collecting hopper connected to the inner wall of the box body.

[0012] As a preferred technical solution of the utility model, a discharge pipe inclined downward is embedded in the side wall of the box body, and the inner end of the discharge pipe is connected to the bottom end of the collecting hopper.

[0013] The beneficial effects of the utility model are:

[0014] The automatic compression molding equipment for cemented carbide powder adds agglomerated cemented carbide powder agglomerates from a feeding hopper into the inner cavity of a box body, and two first crushing rollers crush the cemented carbide powder agglomerates entering the box body, and the crushed cemented carbide powder falls on the filter screen plate inside the box body, and the filter screen plate filters the cemented carbide powder. Cemented carbide powder of qualified particle size passes through the filter screen plate, and unqualified cemented carbide powder rolls downward along the inclined filter screen plate, and is discharged from the discharge gap between the filter screen plate and the first guide plate and falls on the two second crushing rollers for secondary crushing, thereby ensuring that the crushed particle size of the cemented carbide powder agglomerates is qualified and improving the crushing effect of the cemented carbide powder; during discharge, the cemented carbide powder passing through the filter screen plate goes downward along the inclined second guide plate, and the cemented carbide powder crushed for the second time by the second crushing roller goes downward along the inclined third guide plate, and respectively comes out from the first discharge port and the second discharge port to enter the interior of the collecting hopper, and finally is discharged from the discharge pipe, and the discharge is simple and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of a cemented carbide powder automatic molding equipment of the utility model;

[0017] Figure 2 This is a structural cross-sectional view of a cemented carbide powder automatic molding device of the utility model;

[0018] Figure 3 The utility model is a kind of automatic molding equipment for cemented carbide powder Figure 2 Structural cross-section view at point A in the middle.

[0019] In the figure: 1. box material; 2. feeding hopper; 3. first crushing roller; 4. filter screen; 5. first guide plate; 6. discharge gap; 7. second crushing roller; 8. second guide plate; 9. protective baffle; 10. third guide plate; 11. heating tube; 12. collecting hopper; 13. discharge pipe. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1 , Figure 2 and Figure 3As shown, the utility model is an automatic compression molding device for cemented carbide powder, comprising a box body 1, a feeding hopper 2 is provided at the top of the box body 1, two first crushing rollers 3 that cooperate with each other to crush metal powder agglomerates are provided at the upper end of the box body 1, a filter screen plate 4 located below the first crushing roller 3 and a first guide plate 5 provided on one side of the inner wall of the box body 1 are provided inside the box body 1, the bottom end of the filter screen plate 4 is flush with the bottom end of the first guide plate 5, and a discharge gap 6 is left between the filter screen plate 4 and the first guide plate 5, and two second crushing rollers 7 that cooperate with each other to secondary crush the filtered metal powder agglomerates are provided inside the box body 1 and are located directly below the discharge gap 5.

[0022] The inner cavity of the box body 1 is provided with a second material guide plate 8 which is inclined downward and guides the cemented carbide powder, and a first material discharge port is reserved between the lowest end of the second material guide plate 8 and the inner wall of the box body 1 .

[0023] The bottom ends of the filter screen plate 4 and the first material guide plate 5 are both provided with a protective baffle 9 connected to the inner wall of the box body 1 to play a protective and material-blocking role.

[0024] The protective baffle 9 is provided with a third material guide plate 10 which is inclined downward and located between the first material guide plate 5 and the second material guide plate 8 , and a second material discharge port is left between the lowest end of the third material guide plate 10 and the inner wall of the box body 1 .

[0025] The lower end surfaces of the second material guide plate 8 and the third material guide plate 10 are both provided with a plurality of heating tubes 11 at equal intervals, which can heat the crushed cemented carbide powder to evaporate moisture.

[0026] The lowest end of the second material guide plate 8 is provided with a collecting hopper 12 connected to the inner wall of the box body 1 , and the side wall of the box body 1 is embedded with a downwardly inclined discharge pipe 13 , the inner end of the discharge pipe 13 is connected to the bottom end of the collecting hopper 12 .

[0027] When working, the cemented carbide powder automatic molding forming equipment adds the agglomerated cemented carbide powder agglomerates from the feeding hopper 2 into the inner cavity of the box body, and the two first crushing rollers 3 enter the cemented carbide powder agglomerates to crush them. The crushed cemented carbide powder will fall onto the filter screen plate 4 inside the box body, and the filter screen plate 4 will filter the cemented carbide powder. The cemented carbide powder with qualified particle size will pass through the filter screen plate 4, and the unqualified cemented carbide powder will roll down along the inclined filter screen plate 4 and be discharged from the discharge between the filter screen plate 4 and the first guide plate 5. The material discharged from the gap 6 falls onto the two second crushing rollers 7 for secondary crushing, which ensures that the cemented carbide powder agglomerates and crushes to a qualified particle size and improves the crushing effect of the cemented carbide powder; when discharging, the cemented carbide powder passing through the filter screen plate 4 flows downward along the inclined second guide plate 8, and at the same time, the cemented carbide powder crushed for the second time by the second crushing roller 7 flows downward along the inclined third guide plate 10, and respectively comes out from the first discharge port and the second discharge port into the interior of the collecting hopper 12, and is finally discharged from the discharge pipe 13, the discharge is simple and the efficiency is high.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic compression molding device for cemented carbide powder, comprising a box (1), characterized in that: A feeding hopper (2) is provided at the top of the box body (1), two first crushing rollers (3) that cooperate with each other to crush metal powder agglomerates are provided at the upper end of the box body (1), a filter screen plate (4) located below the first crushing roller (3) and a first guide plate (5) provided on one side of the inner wall of the box body (1) are provided inside the box body (1), the bottom end of the filter screen plate (4) is flush with the bottom end of the first guide plate (5), and a discharge gap (6) is left between the filter screen plate (4) and the first guide plate (5), and two second crushing rollers (7) that cooperate with each other to secondary crush filtered metal powder agglomerates are provided inside the box body (1) and are located directly below the discharge gap (6).

2. The automatic compression molding equipment for cemented carbide powder according to claim 1, characterized in that: The inner cavity of the box body (1) is provided with a second material guide plate (8) which is inclined downward and guides the cemented carbide powder, and a first material discharge port is left between the lowest end of the second material guide plate (8) and the inner wall of the box body (1).

3. The automatic compression molding equipment for cemented carbide powder according to claim 2, characterized in that: The bottom ends of the filter screen plate (4) and the first material guide plate (5) are both provided with a protective baffle (9) connected to the inner wall of the box body (1).

4. The automatic compression molding equipment for cemented carbide powder according to claim 3 is characterized in that: The protective baffle (9) is provided with a third material guide plate (10) which is inclined downward and located between the first material guide plate (5) and the second material guide plate (8), and a second material discharge port is left between the lowest end of the third material guide plate (10) and the inner wall of the box body (1).

5. The automatic compression molding equipment for cemented carbide powder according to claim 4, characterized in that: The lower end surfaces of the second material guide plate (8) and the third material guide plate (10) are both provided with a plurality of heating tubes (11) at equal intervals.

6. The automatic compression molding equipment for cemented carbide powder according to claim 2, characterized in that: The lowest end of the second material guide plate (8) is provided with a material collecting hopper (12) connected to the inner wall of the box body (1).

7. The automatic compression molding equipment for cemented carbide powder according to claim 6, characterized in that: A discharge pipe (13) inclined downward is embedded in the side wall of the box body (1), and the inner end of the discharge pipe (13) is connected to the bottom end of the collecting hopper (12).

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