Copper gold powder grinding feed hopper

By designing the cutting assembly and pretreatment assembly in the copper-gold powder grinding hopper, the problem of reduced abrasion effect caused by uneven grinding of copper-gold powder and excessive filling is solved, and a more detailed grinding effect and higher grinding efficiency are achieved.

CN223010665UActive Publication Date: 2025-06-24SUZHOU YUEGONG GOLD POWDER CO LTD
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Patent Information

Application Number
CN202422034103.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-06-24
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

During the grinding of copper gold powder, the copper gold powder close to the grinding ball is ground too fine, while the copper gold powder far away from the grinding ball is relatively rough, resulting in uneven grinding effect, and excessive addition of copper gold powder will reduce the grinding fineness.

Method used

A copper-gold powder grinding hopper is designed, including a cutting assembly and a pretreatment assembly. The cutting assembly is staged through the L-shaped tube and the transmission shaft system, and the pretreatment assembly is pretreated by the copper-gold powder through the guide plate and the grinding roller.

Benefits of technology

Through the cooperation of staged cutting and pretreatment components, the appropriate contact between the copper and gold powder and the grinding ball is maintained, and the fineness of the grinding and the overall grinding efficiency are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bronze powder grinding feeding hopper which comprises a material receiving frame, the top wall of the material receiving frame is communicated with a connecting frame, the top wall of the connecting frame is communicated with a feeding frame, a pretreatment assembly is installed on the inner wall of the feeding frame, a discharging assembly is installed at the bottom of the inner wall of the material receiving frame, and the discharging assembly is in transmission connection with the pretreatment assembly. The utility model relates to the technical field of bronze powder processing. According to the copper gold powder grinding feeding hopper, the roller shaft drives the second belt wheel, the belt and the first belt wheel to rotate, the first belt wheel drives the first transmission shaft, the first bevel gear, the second bevel gear, the second transmission shaft and the circular base to rotate, copper gold powder on the material receiving disc can fall down from the discharging port, an electric control valve is opened, and the copper gold powder is discharged into grinding equipment through the discharging hopper and the discharging pipe to be machined and ground; by means of the structure, when copper gold powder is machined and ground, staged discharging can be conducted, the appropriate amount of copper gold powder is kept to be in contact with grinding balls in grinding equipment, the grinding fineness degree is improved, and the overall grinding efficiency is kept.
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Description

Technical Field

[0001] The utility model relates to the technical field of copper-gold powder processing, in particular to a copper-gold powder grinding and feeding hopper. Background Art

[0002] Copper gold powder, also known as gold powder, is an alloy powder with copper and zinc as the main components, and usually contains a small amount of other metal elements. The production process of copper gold powder includes smelting, atomization powder making, ball milling and grading, and finally forms a metallic pigment with a flaky structure. Copper gold powder has a metallic luster and color visually. It is often used in coatings, printing, plastic adhesives, textiles and other industries to increase the high-end and decorative effects of products. It can also be used in the preparation of conductive materials, cosmetics and catalysts in the electronics industry, as well as the production of decorative materials and artworks. During production and processing, the raw materials need to be transported through feeding equipment. After the production of copper gold powder is completed, it needs to be collected and stored to facilitate later use and avoid damage.

[0003] With respect to the above-mentioned related technologies, the applicant believes that: when copper-gold powder is ground by special equipment, the copper-gold powder is added into the grinding equipment. When a large amount of copper-gold powder is ground, the copper-gold powder close to the grinding ball will be ground more finely, and the copper-gold powder far away from the grinding ball will be coarser. Therefore, when grinding the copper-gold powder, it is necessary to add materials in stages to improve the grinding effect and prevent excessive addition from reducing the degree of grinding fineness.

[0004] Therefore, the utility model provides a copper-gold powder grinding and feeding hopper to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a copper-gold powder grinding and feeding hopper to solve the above problems.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a copper-gold powder grinding hopper, comprising a material receiving frame, the top wall of the material receiving frame is connected to a connecting frame, the top wall of the connecting frame is connected to a feeding frame, a pretreatment component is installed on the inner wall of the feeding frame, a material discharge component is installed on the bottom of the inner wall of the material receiving frame, and the material discharge component and the pretreatment component are transmission-connected;

[0007] The blanking assembly includes an L-shaped pipe. Mounting seats are fixedly installed on both the left side and the bottom inner wall of the L-shaped pipe. A first transmission shaft is rotatably installed on the side wall of the mounting seat on the left side. A first bevel gear is fixedly installed at the right end of the first transmission shaft. The left end of the first transmission shaft passes through the mounting seat on the left side and the L-shaped pipe in sequence through a bearing and is fixedly connected with a first pulley. A second transmission shaft is rotatably installed on the top wall of the mounting seat at the bottom. A second bevel gear is fixedly installed at the top end of the second transmission shaft. The bottom end of the second transmission shaft passes through the mounting seat at the bottom and the L-shaped pipe in sequence through a bearing and is fixedly connected with a circular seat. A receiving tray is fixedly installed on the bottom inner wall of the receiving frame. A plurality of discharge ports are evenly formed on the top wall of the receiving tray. A plurality of shielding seats are evenly installed on the outer wall of the circular seat. Inclined scraping grooves are formed on the bottom side walls of the shielding seats.

[0008] Through the above technical solution, the setting of the blanking assembly can continuously carry out staged blanking of copper-gold powder, maintain the working efficiency of the external grinding equipment, prevent excessive copper-gold powder from accumulating outside the grinding balls, and avoid the problem of increasing the grinding processing time.

[0009] Further, the L-shaped pipe is located at the bottom inner cavity of the receiving frame. The left end of the L-shaped pipe penetrates through the receiving frame and extends to the outside. The left side of the outer wall of the L-shaped pipe is screwed and installed on the side wall of the receiving frame through a bolt fixing seat. A cross is fixedly installed on the bottom outer wall of the L-shaped pipe. The mutually remote ends of the cross are fixedly connected with the inner wall of the receiving frame.

[0010] Through the above technical solution, the setting of the cross can stably support the L-shaped pipe.

[0011] Further, the second bevel gear and the first bevel gear are both located at the bent part of the inner wall of the L-shaped pipe. The second bevel gear and the first bevel gear are meshed and connected. The first pulley is in transmission connection with the pretreatment assembly. The bottom wall of the circular seat is attached to the top wall of the receiving tray. The bottom end of the second transmission shaft passes through the circular seat through a bearing and is rotatably connected with the top wall of the receiving tray. The number of shielding seats is the same as the number of discharge ports.

[0012] Through the above technical solution, when the first bevel gear rotates, it drives the second bevel gear to rotate. The receiving tray is mainly used to hold the copper-gold powder to be discharged.

[0013] Further, the pretreatment assembly includes two guide plates. The two guide plates are arranged symmetrically front and back. Both guide plates are fixedly connected to the top inner wall of the feeding frame. Both guide plates are inclined towards the middle of the feeding frame. Grinding rollers are rotatably installed on the front and rear parts of the inner wall of the feeding frame through roller shafts. The position between the grinding rollers matches the inclined position of the two guide plates.

[0014] Through the above technical solution, the two material guiding plates are arranged obliquely, so that the copper-gold powder filled into the inner part of the feeding frame will slide to the position between the grinding rollers, which is convenient for subsequent grinding pretreatment.

[0015] Further, the left ends of the roller shafts of the grinding rollers are fixedly installed with driving gears through bearings and penetrate through the feeding frame. The driving gears are meshed with each other. A protective frame is installed on the left side wall of the feeding frame corresponding to the position of the driving gears. The left end of the roller shaft of the rear grinding roller penetrates through the protective frame through a bearing and is fixedly connected with a second belt pulley. The second belt pulley and the first belt pulley are connected by a belt.

[0016] Through the above technical solution, when the roller shafts of the grinding rollers rotate, they drive the driving gears to rotate, and then drive the driving gears meshed with them to rotate. The setting of the protective frame mainly plays a protective role for the driving gears.

[0017] Further, a driving motor is fixedly installed on the right side wall of the feeding frame. The power shaft of the driving motor penetrates through the feeding frame through a bearing and is fixedly connected with the corresponding roller shaft of the grinding roller.

[0018] Through the above technical solution, the setting of the driving motor can drive the corresponding roller shaft of the grinding roller to rotate.

[0019] Further, the bottom wall of the material receiving frame is communicated with a discharge hopper. The bottom end of the discharge hopper is communicated with a discharge pipe. An electric control valve is installed on the outer wall of the discharge pipe. The top of the outer wall of the material receiving frame is bolted and installed with a fixing frame. Fixed rings are fixedly installed at the bottom of the outer wall of the fixing frame. Fastening bolts are screwed on the top walls of the fixed rings. The fixed rings are screwed and fixed with an external grinding device through the fastening bolts. The bottom end of the discharge pipe is communicated with the feeding port of the external grinding device.

[0020] Through the above technical solution, the copper-gold powder falling on the material receiving plate will enter the discharge hopper, and then be discharged into the external grinding device through the discharge pipe for grinding.

[0021] Beneficial effects

[0022] The utility model provides a grinding feeding hopper for copper-gold powder. Compared with the prior art, the following beneficial effects are achieved:

[0023] (1). The copper-gold powder grinding feeding hopper drives the second belt pulley, belt, and first belt pulley to rotate through a roller shaft. The first belt pulley drives the first transmission shaft, first bevel gear, second bevel gear, second transmission shaft, and circular seat to rotate. The circular seat drives the shielding seat and the inclined scraping groove to rotate on the top wall of the material receiving tray. After the shielding seat and the discharge port are staggered, the copper-gold powder on the material receiving tray will fall from the discharge port. The electric control valve is opened, and it is discharged into the grinding equipment through the discharge hopper and the discharge pipe for processing and grinding. When processing and grinding the copper-gold powder, it can feed materials stage by stage, keep an appropriate amount of copper-gold powder in contact with the grinding balls inside the grinding equipment, improve the fineness of grinding, and maintain the overall grinding efficiency.

[0024] (2). The copper-gold powder grinding feeding hopper is screwed and fixed to the external grinding equipment through a fixing ring and fastening bolts. The bottom end of the discharge pipe is connected to the feed inlet of the external grinding equipment. The copper-gold powder is filled from the feed frame and falls onto the guide plate and flows towards the position between the grinding rollers. The driving motor drives the corresponding grinding rollers, roller shafts, and driving gears to rotate, and drives the driving gears and grinding rollers meshing with them to rotate for pre-grinding treatment of the copper-gold powder. The copper-gold powder enters the material receiving tray in the material receiving frame through the connecting frame and is collected. When processing the copper-gold powder, it can be pre-treated, so that the grinding time can be shortened during subsequent grinding, and the practicality of the entire device can be improved in cooperation with the feeding component. Description of the Drawings

[0025] Figure 1 is a three-dimensional external structure view of the present utility model;

[0026] Figure 2 is a front internal structure view of the present utility model;

[0027] Figure 3 is a left external structure view of the present utility model;

[0028] Figure 4 is a schematic external structure view of the feeding component and the pre-treatment component of the present utility model;

[0029] Figure 5 is an exploded internal structure view of the feeding component and the pre-treatment component of the present utility model.

[0030] In the figure: 1, fixed frame; 2, fixed ring; 3, fastening bolt; 4, material receiving frame; 5, discharge hopper; 6, discharge pipe; 7, blanking assembly; 71, L-shaped pipe; 72, cross; 73, first transmission shaft; 74, first pulley; 75, first bevel gear; 76, second bevel gear; 77, second transmission shaft; 78, circular seat; 79, shielding seat; 710, inclined scraping groove; 711, material receiving tray; 712, discharge port; 713, mounting seat; 8, pretreatment assembly; 81, guide plate; 82, grinding roller; 83, drive motor; 84, drive gear; 85, second pulley; 86, belt; 87, protective frame; 9, feed frame; 10, connecting frame; 11, electric control valve. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1:

[0033] Please refer to Figures 1-5 , a grinding and feeding hopper for copper-gold powder, comprising a material receiving frame 4. The top wall of the material receiving frame 4 is communicated with a connecting frame 10. The top wall of the connecting frame 10 is communicated with a feed frame 9. A pretreatment assembly 8 is installed on the inner wall of the feed frame 9. The bottom of the inner wall of the material receiving frame 4 is installed with a blanking assembly 7. The blanking assembly 7 and the pretreatment assembly 8 are in transmission connection;

[0034] The blanking component 7 includes an L-shaped pipe 71. Mounting seats 713 are fixedly installed on both the left side and the bottom of the inner wall of the L-shaped pipe 71. A first transmission shaft 73 is rotatably installed on the side wall of the mounting seat 713 on the left side. A first bevel gear 75 is fixedly installed at the right end of the first transmission shaft 73. The left end of the first transmission shaft 73 sequentially passes through the mounting seat 713 on the left side and the L-shaped pipe 71 through bearings and is fixedly connected to a first belt pulley 74. A second transmission shaft 77 is rotatably installed on the top wall of the mounting seat 713 at the bottom. A second bevel gear 76 is fixedly installed at the top end of the second transmission shaft 77. The bottom end of the second transmission shaft 77 sequentially passes through the mounting seat 713 at the bottom and the L-shaped pipe 71 through bearings and is fixedly connected to a circular seat 78. A receiving tray 711 is fixedly installed on the bottom of the inner wall of the material receiving frame 4. A plurality of discharge ports 712 are evenly formed on the top wall of the receiving tray 711. A plurality of shielding seats 79 are evenly installed on the outer wall of the circular seat 78. Inclined scraping grooves 710 are formed on the bottom side walls of the shielding seats 79. The L-shaped pipe 71 is located at the bottom of the inner cavity of the material receiving frame 4. The left end of the L-shaped pipe 71 passes through the material receiving frame 4 and extends to the outside. The left side of the outer wall of the L-shaped pipe 71 is screwed and installed on the side wall of the material receiving frame 4 through a bolt fixing seat. A cross 72 is fixedly installed on the bottom of the outer wall of the L-shaped pipe 71. The mutually remote ends of the cross 72 are fixedly connected to the inner wall of the material receiving frame 4. The second bevel gear 76 and the first bevel gear 75 are both located at the bent portion of the inner wall of the L-shaped pipe 71. The second bevel gear 76 and the first bevel gear 75 are meshed and connected. The first belt pulley 74 is in transmission connection with the pretreatment component 8. The bottom wall of the circular seat 78 is attached to the top wall of the receiving tray 711. The bottom end of the second transmission shaft 77 passes through the circular seat 78 through a bearing and is rotatably connected to the top wall of the receiving tray 711. The number of the shielding seats 79 is the same as the number of the discharge ports 712;

[0035] In the embodiment of the present invention, the purpose of this setting is that, under the mutual cooperation of the blanking component 7 and the pretreatment component 8, the copper-gold powder can be synchronously subjected to grinding pretreatment and staged blanking work. The staged blanking can prevent the copper-gold powder from accumulating on the grinding balls in the external equipment, and always keep an appropriate amount of copper-gold powder in contact with the grinding balls, making the grinding process more meticulous, improving the grinding effect, and maintaining the overall grinding processing efficiency. When the circular seat 78 rotates, it drives the shielding seats 79 to rotate, and then the inclined scraping grooves 710 will scrape the copper-gold powder on the top wall of the receiving tray 711 into the discharge ports 712.

[0036] Embodiment Two:

[0037] Please refer to Figures 1-5, this embodiment provides a technical solution based on Embodiment 1: The pretreatment component 8 includes two guide plates 81, which are symmetrically arranged front and back. Both guide plates 81 are fixedly connected to the top inner wall of the feeding frame 9. Both guide plates 81 are inclined towards the middle of the feeding frame 9. Grinding rollers 82 are rotatably installed on the front and rear parts of the inner wall of the feeding frame 9 through roller shafts. The position between the grinding rollers 82 matches the inclined position of the two guide plates 81. The left ends of the roller shafts of the grinding rollers 82 are fixedly installed with driving gears 84 through bearings, and the driving gears 84 are meshed with each other. A protective frame 87 is installed on the left side wall of the feeding frame 9 corresponding to the position of the driving gear 84. The left end of the roller shaft of the rear grinding roller 82 is fixedly connected with a second belt pulley 85 through a bearing passing through the protective frame 87. The second belt pulley 85 and the first belt pulley 74 are connected by a belt 86. A driving motor 83 is fixedly installed on the right side wall of the feeding frame 9. The power shaft of the driving motor 83 is fixedly connected with the corresponding roller shaft of the grinding roller 82 through a bearing passing through the feeding frame 9. The bottom wall of the material receiving frame 4 is communicated with a discharge hopper 5, and the bottom end of the discharge hopper 5 is communicated with a discharge pipe 6. An electric control valve 11 is installed on the outer wall of the discharge pipe 6. The top of the outer wall of the material receiving frame 4 is bolted and installed with a fixing frame 1. Fixed rings 2 are fixedly installed at the bottom of the outer wall of the fixing frame 1. Fastening bolts 3 are screwed on the top walls of the fixed rings 2. The fixed rings 2 are screwed and fixed to an external grinding device through the fastening bolts 3. The bottom end of the discharge pipe 6 is communicated with the feed inlet of the external grinding device;

[0038] In the embodiment of the present utility model, the purpose of this setting is that the setting of the pretreatment component 8 can perform grinding pretreatment on the copper-gold powder to be ground, which can reduce the later grinding time. At the same time, it drives the feeding component 7 to perform staged feeding during work, thereby improving the practicability of the entire device and maintaining its overall working efficiency. The setting of the two guide plates 81 can make the copper-gold powder slide smoothly to the position between the grinding rollers 82 when adding the copper-gold powder, and keep the falling direction of the copper-gold powder.

[0039] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0040] During operation, first, the fixing ring 2 is screwed and fixed to the external grinding equipment by the fastening bolts 3, the bottom end of the discharge pipe 6 is connected to the feed port of the external grinding equipment, and the drive motor 83 is connected through the external controller and the power supply, the copper-gold powder to be ground is added from the feed frame 9, falls onto the guide plate 81 and flows into the position between the grinding rollers 82, and the corresponding grinding rollers 82, the roller shaft and the driving gear 84 are driven to rotate by starting the driving motor 83. When the driving gear 84 rotates, it drives the driving gear 84 meshing with it to rotate, and then drives the front and rear grinding rollers 82 to continue to rotate to pre-grind the copper-gold powder. When the pre-treated copper-gold powder passes through the connecting frame 10 and enters the receiving plate 711 in the receiving frame 4 for collection, the roller shaft drives the pulley 2 85 and the belt 86 to rotate when it rotates, so that the lower pulley 1 74 driven by the belt 86 rotates synchronously. Pulley 1 74 then drives transmission shaft 1 73 and bevel gear 1 75 to rotate. When bevel gear 1 75 rotates, it drives bevel gear 2 76 meshing with it to rotate. At the same time, bevel gear 2 76 drives transmission shaft 2 77 and circular seat 78 to rotate. When circular seat 78 rotates, it drives shielding seat 79 and inclined scraper groove 710 to rotate on the top wall of receiving tray 711. When shielding seat 79 coincides with discharge port 712, the copper and gold powder on receiving tray 711 will not be discharged. When shielding seat 79 and corresponding discharge port 712 are staggered, the copper and gold powder on receiving tray 711 will fall from discharge port 712. Staged discharge can prevent a large amount of copper and gold powder from falling at the same time, avoid direct accumulation on the grinding balls inside the external grinding equipment, and can improve the grinding effect and the fineness of grinding. Open the electric control valve 11 and discharge the powder into the grinding equipment through the discharge hopper 5 and the discharge pipe 6 for processing and grinding.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper-gold powder grinding hopper, comprising a material receiving frame (4), characterized in that: The top wall of the material receiving frame (4) is connected to a connecting frame (10), the top wall of the connecting frame (10) is connected to a feeding frame (9), a pre-treatment component (8) is installed on the inner wall of the feeding frame (9), a material unloading component (7) is installed on the bottom of the inner wall of the material receiving frame (4), and the material unloading component (7) and the pre-treatment component (8) are connected in a transmission manner; The material discharge assembly (7) comprises an L-shaped tube (71), a mounting seat (713) is fixedly mounted on the left side and the bottom of the inner wall of the L-shaped tube (71), a transmission shaft (73) is rotatably mounted on the side wall of the mounting seat (713) on the left side, a bevel gear (75) is fixedly mounted on the right end of the transmission shaft (73), a pulley (74) is fixedly connected to the left end of the transmission shaft (73) through a bearing that passes through the mounting seat (713) on the left side and the L-shaped tube (71), and a transmission shaft (77) is rotatably mounted on the top wall of the mounting seat (713) at the bottom. A bevel gear (76) is fixedly mounted on the top of the second transmission shaft (77); the bottom of the second transmission shaft (77) is fixedly connected to a circular seat (78) by a bearing and sequentially passes through a mounting seat (713) and an L-shaped tube (71) at the bottom; a material receiving tray (711) is fixedly mounted on the bottom of the inner wall of the material receiving frame (4); a plurality of discharge ports (712) are evenly arranged on the top wall of the material receiving tray (711); a plurality of shielding seats (79) are evenly mounted on the outer wall of the circular seat (78); and the bottom side walls of the shielding seats (79) are all provided with inclined scraping grooves (710).

2. The copper-gold powder grinding hopper according to claim 1, characterized in that: The L-shaped tube (71) is located at the bottom of the inner cavity of the material receiving frame (4); the left end of the L-shaped tube (71) penetrates the material receiving frame (4) and extends to the outside; the left side of the outer wall of the L-shaped tube (71) is screwed to the side wall of the material receiving frame (4) through a bolt fixing seat; a cross (72) is fixedly installed at the bottom of the outer wall of the L-shaped tube (71); the ends of the cross (72) that are away from each other are fixedly connected to the inner wall of the material receiving frame (4).

3. The copper-gold powder grinding hopper according to claim 1, characterized in that: The bevel gear 2 (76) and the bevel gear 1 (75) are both located at the bending part of the inner wall of the L-shaped tube (71); the bevel gear 2 (76) and the bevel gear 1 (75) are meshingly connected; the pulley 1 (74) is transmission-connected to the pre-treatment component (8); the bottom wall of the circular seat (78) is in contact with the top wall of the receiving tray (711); the bottom end of the transmission shaft 2 (77) passes through the circular seat (78) through a bearing and is rotationally connected to the top wall of the receiving tray (711); the number of the shielding seats (79) is the same as the number of the discharge ports (712).

4. The copper-gold powder grinding hopper according to claim 1, characterized in that: The pretreatment component (8) comprises two material guide plates (81), the two material guide plates (81) are symmetrically arranged front and back, the two material guide plates (81) are fixedly connected to the top of the inner wall of the feed frame (9), the two material guide plates (81) are inclined toward the middle of the feed frame (9), and the front and rear parts of the inner wall of the feed frame (9) are both equipped with grinding rollers (82) rotatably mounted via roller shafts, and the position between the grinding rollers (82) matches the inclined position of the two material guide plates (81).

5. The copper-gold powder grinding hopper according to claim 4, characterized in that: The left end of the roller shaft of the grinding roller (82) is fixedly installed with a driving gear (84) through a bearing passing through the feed frame (9), and the driving gears (84) are meshed with each other. A protective frame (87) is installed on the left side wall of the feed frame (9) and at a position corresponding to the driving gear (84). The left end of the roller shaft of the grinding roller (82) located at the rear is fixedly connected with a second pulley (85) through a bearing passing through the protective frame (87), and the second pulley (85) and the first pulley (74) are connected by a belt (86) for transmission.

6. The copper-gold powder grinding hopper according to claim 1, characterized in that: A driving motor (83) is fixedly mounted on the right side wall of the feed frame (9), and a power shaft of the driving motor (83) passes through the feed frame (9) through a bearing and is fixedly connected to the roller shaft of the corresponding grinding roller (82).

7. The copper-gold powder grinding hopper according to claim 1, characterized in that: The bottom wall of the material receiving frame (4) is connected to the discharge hopper (5), the bottom end of the discharge hopper (5) is connected to a discharge pipe (6), the outer wall of the discharge pipe (6) is installed with an electric control valve (11), the top of the outer wall of the material receiving frame (4) is screwed with a fixing frame (1), the bottom of the outer wall of the fixing frame (1) is fixedly installed with a fixing ring (2), the top wall of the fixing ring (2) is screwed with a fastening bolt (3), the fixing ring (2) is screwed and fixed to the external grinding equipment by the fastening bolt (3), and the bottom end of the discharge pipe (6) is connected to the feed port of the external grinding equipment.