Hard alloy powder grinding device

Abstract

The utility model discloses a hard alloy powder grinding device which structurally comprises a grinding box, a first grinding cavity, a second grinding cavity and a conveying barrel, raw materials are input into the grinding box through a feeding port and enter the first grinding cavity, and a first motor drives a first grinding wheel to conduct first grinding work on the raw materials through the action of a transmission rod; the ground raw materials fall into the first screening cavity and are screened by a filter screen in the first screening cavity, qualified raw materials fall into the second grinding cavity for secondary grinding treatment, and then the ground raw materials fall into the second screening cavity and are screened by the filter screen, so that proper powder is discharged through a discharge port; unqualified raw material particles are discharged into a material conveying barrel through a first material guide opening and a second material guide opening, and the particles are conveyed into the grinding box to be ground again under the action of an auger, so that large-particle raw materials are screened during grinding, the situation that large particles affect the product quality is avoided, and the raw material grinding effect is better through secondary grinding; and the powder quality is better.

Description

Technical Field

[0001] The utility model relates to the technical field of cemented carbide powder production, in particular to a cemented carbide powder grinding device. Background Art

[0002] Cemented carbide powder is a metal powder formed by partial or complete alloying of two or more components. Alloy powders are mainly classified into iron alloy powder, copper alloy powder, nickel alloy powder, cobalt alloy powder, aluminum alloy powder, titanium alloy powder and precious metal alloy powder according to their components.

[0003] In the process of forming powder materials, the raw materials need to be ground in order to be proportioned to form cemented carbide powder. However, the current cemented carbide powder raw material grinding equipment does not have sufficient grinding effect in the process of grinding into powder, resulting in inconsistent metal powder particle size or the ground powder particles are too large, affecting product quality.

[0004] Therefore, a cemented carbide powder grinding device which is convenient for screening and grinding is proposed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In order to overcome the shortcomings of the existing technology, a cemented carbide powder grinding device is proposed to solve the problem that the current cemented carbide powder raw material grinding equipment has insufficient grinding effect in the process of grinding into powder, resulting in inconsistent metal powder particle size or the ground powder particles are too large, affecting product quality.

[0007] (II) Technical solution

[0008] The utility model is realized by the following technical scheme: The utility model proposes a cemented carbide powder grinding device, comprising a grinding box,

[0009] A funnel-shaped material storage chamber is provided inside the upper end of the grinding box, the lower end of the material storage chamber is connected to a first grinding chamber, the bottom end opening of the first grinding chamber is connected to a first funnel-shaped sub-screen chamber, the bottom end of the first sub-screen chamber is connected to a second grinding chamber, and the bottom end opening of the second grinding chamber is connected to a second funnel-shaped sub-screen chamber;

[0010] A first motor is installed at the top of the grinding box, a first grinding wheel is arranged inside the first grinding chamber, and the output end of the first motor is connected to the upper end of the first grinding wheel through a transmission rod, a second grinding wheel is arranged inside the second grinding chamber, and the bottom end of the first grinding wheel is connected to the upper end of the second grinding wheel through a transmission rod;

[0011] A first material guide port penetrating through the grinding box is provided on one side of the second sub-screen chamber, and a second material guide port penetrating through the grinding box is provided on one side of the first sub-screen chamber. Filters are provided inside the first and second sub-screen chambers, and a transmission rod penetrates the middle of the filter.

[0012] Furthermore, the bottom of the grinding box is provided with supporting feet, one side of the top of the grinding box is provided with a feed port, the bottom end of the second sub-screening cavity is connected to a discharge port that passes through the grinding box, and a control panel is installed on the outside of the grinding box.

[0013] Furthermore, a rotating rod is connected to the lower end of the transmission rod connected between the first grinding wheel and the second grinding wheel and the transmission rod at the lower end of the second grinding wheel, and a brush is provided at the lower end of the rotating rod to contact the filter.

[0014] Furthermore, a feed barrel is connected to the outside of the grinding box, and the first material guide port and the second material guide port both pass through the bottom of the feed barrel, an auger is connected to the inside of the feed barrel through a bearing, a second motor is installed on the top of the feed barrel, and the output end of the second motor is connected to the auger, and a discharge port is provided at the upper end of the feed barrel that passes through the material storage cavity.

[0015] Furthermore, the first motor and the second motor are both covered with protective boxes on their outer sides.

[0016] Furthermore, the first grinding wheel and the second grinding wheel are both configured to be elliptical.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] In the utility model, secondary grinding of the raw material is achieved through the first grinding chamber, the first grinding wheel, the second grinding chamber and the second grinding wheel, so that the powdered raw material ground has better quality and better effect.

[0020] In the utility model, a first sub-screening chamber and a second sub-screening chamber are arranged at the lower ends of the first grinding chamber and the second grinding chamber, and filter screens are arranged inside the first sub-screening chamber and the second sub-screening chamber to screen the ground raw materials, separate unqualified raw materials from qualified raw materials, avoid affecting product quality, and make the product quality better.

[0021] In the utility model, the screened unqualified raw materials are input into the feed barrel through the first material guide port and the second material guide port, and the raw materials are re-input into the storage cavity for grinding under the action of the auger, thereby improving the work efficiency, avoiding the waste of time for subsequent re-grinding, and speeding up the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the top view of the first sub-screen chamber of the utility model;

[0026] In the figure: grinding box-1, supporting feet-2, control panel-3, feed port-4, feed barrel-5, protection box-6, material storage chamber-7, first grinding chamber-8, first grinding wheel-9, transmission rod-10, first motor-11, first sub-screen chamber-12, second grinding chamber-13, second grinding wheel-14, second sub-screen chamber-15, discharge port-16, filter screen-17, rotating rod-18, brush-19, first material guide port-110, second material guide port-111, discharge port-112, auger-113, second motor-114. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a cemented carbide powder grinding device, including a grinding box 1 so that debris and dust will not escape outside during the grinding process, a supporting foot 2 is provided at the bottom of the grinding box 1 to increase the height of the grinding box 1, so as to facilitate the unloading work at the lower end, a feeding port 4 is provided on one side of the top of the grinding box 1 to pour the raw materials into the grinding box 1 for grinding, a second sub-screen cavity 15 is connected to a discharge port 16 that penetrates the grinding box 1 at the bottom end for unloading, and a control panel 3 is installed on the outside of the grinding box 1 for the convenience of operation by the staff.

[0029] A funnel-shaped material storage chamber 7 is provided inside the upper end of the grinding box 1, so that the raw materials after grinding and screening can be stored inside to avoid blocking the lower end of the grinding. The lower end of the material storage chamber 7 is connected to a first grinding chamber 8, and a first grinding wheel 9 is provided inside the first grinding chamber 8. Under the action of the first grinding wheel 9 and the first grinding chamber 8, the raw materials can be ground for the first time. The bottom end of the first sub-screening chamber 12 is connected to a second grinding chamber 13, and a second grinding wheel 14 is provided inside the second grinding chamber 13. The raw materials after the first grinding are ground again by the second grinding wheel 14 inside the second grinding chamber 13. The grinding effect is better and the powder is more thorough, and a first motor 11 is installed on the top of the grinding box 1, and the output end of the first motor 11 is connected to the upper end of the first grinding wheel 9 through the transmission rod 10, and the bottom end of the first grinding wheel 9 is connected to the upper end of the second grinding wheel 14 through the transmission rod 10, so that the first grinding wheel 9 and the second grinding wheel 14 are rotated by the transmission rod 10 under the drive of the first motor 11, thereby realizing the grinding work, and the first grinding wheel 9 and the second grinding wheel 14 are both set to be elliptical to prevent the accumulation of the upper end when the raw material is downward.

[0030] The bottom opening of the second grinding chamber 13 is connected to a funnel-shaped second sub-screen chamber 15, and the bottom opening of the first grinding chamber 8 is connected to a bottom funnel-shaped first sub-screen chamber 12, so as to receive the raw materials of the first and second grindings, so that the ground raw materials can be screened therein. A first material guide port 110 penetrating the grinding box 1 is provided on one side of the second sub-screen chamber 15, and a second material guide port 111 penetrating the grinding box 1 is provided on one side of the first sub-screen chamber 12, so that the screened particles can be discharged from the first material guide port 110 and the second material guide port 111 conveniently. Filters 17 are provided inside the first sub-screen chamber 12 and the second sub-screen chamber 15, and the mesh sizes of the upper and lower layers of the filter 17 can be set, and the setting becomes smaller from top to bottom, so that the raw material powder ground from the lower end has better quality, and the transmission rod 10 passes through the filter 17, so that there will be no interference during the rotation of the transmission rod 10, the outside of the grinding box 1 is connected to the feeding cylinder 5, and the first guide port 110 and the second guide port 111 both penetrate the bottom of the feeding cylinder 5, the inside of the feeding cylinder 5 is connected with an auger 113 through a bearing, the top of the feeding cylinder 5 is installed with a second motor 114, and the output end of the second motor 114 is connected to the auger 113, and the upper end of the feeding cylinder 5 is provided with a discharge port 112 that penetrates the material storage chamber 7, so that the granular raw materials discharged from the first guide port 110 and the second guide port 111 can enter the inside of the feeding cylinder 5, and the granular raw materials can be transported upward under the action of the rotation of the auger 113 driven by the second motor 114, and enter the grinding box 1 again through the discharge port 112 for grinding, so that the raw material grinding effect is better and the quality is better.

[0031] Preferably, a rotating rod 18 is connected to the lower end of the transmission rod 10 connected between the first grinding wheel 9 and the second grinding wheel 14 and the transmission rod 10 at the lower end of the second grinding wheel 14, and a brush 19 is provided at the lower end of the rotating rod 18 to contact the filter screen 17. When the transmission rod 10 drives the rotating rod 18, the brush 19 rotates on the upper end of the filter screen 17. Under the action of the brush 19, the blockage of the filter screen 17 can be reduced, and the screening speed can be accelerated, so that the granular raw materials can be discharged from the first material guide port 110 and the second material guide port 111, thereby speeding up the work progress.

[0032] Preferably, a protective box 6 is provided outside the first motor 11 and the second motor 114 to prevent external dust from affecting the first motor 11 and the second motor 114, and a breathable net can be provided outside the protective box 6 to facilitate heat dissipation.

[0033] Working principle: When in use, first connect the control panel 3, the first motor 11 and the second motor 114 to an external power source, then pour the raw material into the storage chamber 7 inside the grinding box 1 through the feed port 4, and the first grinding wheel 9 and the second grinding wheel 14 are rotated through the transmission rod 10 under the operation of the first motor 11. When the raw material enters the first grinding chamber 8, it is ground once by the action of the first grinding wheel 9, and then the ground raw material falls into the filter 17 on the first sub-screen chamber 12, and is removed by the brush 19 at the lower end of the rotating rod 18. It performs screening, and unqualified raw materials are input into the feed tube 5 through the first material guide port 110, and then qualified raw materials enter the second grinding chamber 13 and are ground under the action of the second grinding wheel 14, and then enter the second sub-screening chamber 15 at the lower end, and are screened again under the action of the brush 19. Qualified materials are discharged through the discharge port 16, and unqualified materials are input into the feed tube 5 through the second material guide port 111, and are re-input into the grinding box 1 for grinding under the action of the auger 113 driven by the second motor 114, thereby completing the work.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cemented carbide powder grinding device, comprising a grinding box (1), characterized in that ； A funnel-shaped material storage chamber (7) is provided inside the upper end of the grinding box (1); the lower end of the material storage chamber (7) is connected to a first grinding chamber (8); the bottom opening of the first grinding chamber (8) is connected to a bottom funnel-shaped first sub-screen chamber (12); the bottom end of the first sub-screen chamber (12) is connected to a second grinding chamber (13); and the bottom opening of the second grinding chamber (13) is connected to a funnel-shaped second sub-screen chamber (15); A first motor (11) is installed at the top of the grinding box (1); a first grinding wheel (9) is provided inside the first grinding chamber (8); an output end of the first motor (11) is connected to the upper end of the first grinding wheel (9) via a transmission rod (10); a second grinding wheel (14) is provided inside the second grinding chamber (13); and a bottom end of the first grinding wheel (9) is connected to the upper end of the second grinding wheel (14) via the transmission rod (10); A first material guide port (110) penetrating the grinding box (1) is provided on one side of the second sub-screen chamber (15), and a second material guide port (111) penetrating the grinding box (1) is provided on one side of the first sub-screen chamber (12). Filter screens (17) are provided inside the first sub-screen chamber (12) and the second sub-screen chamber (15), and the transmission rod (10) penetrates the middle of the filter screen (17).

2. A cemented carbide powder grinding device according to claim 1, characterized in that: The bottom of the grinding box (1) is provided with supporting feet (2), a feeding port (4) is provided on one side of the top of the grinding box (1), the bottom end of the second sub-screen cavity (15) is connected to a discharge port (16) that passes through the grinding box (1), and a control panel (3) is installed on the outside of the grinding box (1).

3. The cemented carbide powder grinding device according to claim 1, characterized in that: A rotating rod (18) is connected to the lower end of the transmission rod (10) connected between the first grinding wheel (9) and the second grinding wheel (14) and to the lower end of the transmission rod (10) of the second grinding wheel (14), and a brush (19) is provided at the lower end of the rotating rod (18) to contact the filter screen (17).

4. The cemented carbide powder grinding device according to claim 1, characterized in that: The grinding box (1) is connected to a feed barrel (5) on the outside, and a first material guide port (110) and a second material guide port (111) both pass through the bottom of the feed barrel (5). An auger (113) is connected to the inside of the feed barrel (5) via a bearing. A second motor (114) is installed at the top of the feed barrel (5), and an output end of the second motor (114) is connected to the auger (113). A discharge port (112) is provided at the upper end of the feed barrel (5) and passes through the material storage cavity (7).

5. A cemented carbide powder grinding device according to claim 4, characterized in that: The first motor (11) and the second motor (114) are both covered with a protective box (6) on their outer sides.

6. The cemented carbide powder grinding device according to claim 1, characterized in that: The first grinding wheel (9) and the second grinding wheel (14) are both configured to be elliptical.

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