阅读说明：本技术 一种电解铜粉的自动刮粉装置 (Automatic scraping device for electrolytic copper powder ) 是由 陈林 李�权 吴卫 姜爱民 赖坤 史文 张玉波 唐丽梅 于 2021-08-04 设计创作，主要内容包括：本发明提供一种电解铜粉的自动刮粉装置,涉及电解铜粉技术领域。一种电解铜粉的自动刮粉装置,用于将阴极板上的铜粉刮落,包括：升降机构,所述阴极板设置于所述升降机构上,所述升降机构用于驱动所述阴极板从电解槽中升起；刮粉机构,所述刮粉机构包括多组刮粉组件,每组所述刮粉组件包括两个相互平行且间隔布置的刮粉部件；其中,所述刮粉机构还包括移动组件,所述刮粉组件安装于所述移动组件上,所述移动组件使得所述刮粉组件能够水平移动至所述阴极板的下侧,所述升降机构驱动所述阴极板向下运动并穿过每组所述刮粉部件之间的间隙。本发明提供的电解铜粉的自动刮粉装置,能够实现多个阴极板的同时刮粉,提高生产效率,改善铜粉的品质。(The invention provides an automatic powder scraping device for electrolytic copper powder, and relates to the technical field of electrolytic copper powder. An automatic scraping device for electrolytic copper powder, which is used for scraping the copper powder on a cathode plate, comprises: the lifting mechanism is used for driving the cathode plate to lift up from the electrolytic bath; the powder scraping mechanism comprises a plurality of groups of powder scraping assemblies, and each group of powder scraping assemblies comprises two powder scraping components which are parallel to each other and are arranged at intervals; the powder scraping mechanism further comprises a moving assembly, the powder scraping assembly is mounted on the moving assembly, the moving assembly enables the powder scraping assembly to horizontally move to the lower side of the negative plate, and the lifting mechanism drives the negative plate to move downwards and penetrate through each group of gaps between the powder scraping components. The automatic powder scraping device for the electrolytic copper powder provided by the invention can realize simultaneous powder scraping of a plurality of negative plates, so that the production efficiency is improved, and the quality of the copper powder is improved.)

1. An automatic scraping device for electrolytic copper powder is used for scraping the copper powder on a negative plate (1), and is characterized by comprising:

the lifting mechanism (2), the cathode plate (1) is arranged on the lifting mechanism (2), and the lifting mechanism (2) is used for driving the cathode plate (1) to lift from the electrolytic bath;

the powder scraping mechanism (3) comprises a plurality of groups of powder scraping assemblies (31), and each group of powder scraping assemblies (31) comprises two powder scraping components (311) which are parallel to each other and are arranged at intervals;

the powder scraping mechanism (3) further comprises a moving assembly (32), the powder scraping assembly (31) is installed on the moving assembly (32), the moving assembly (32) enables the powder scraping assembly (31) to horizontally move to the lower side of the negative plate (1), the lifting mechanism (2) drives the negative plate (1) to move downwards and penetrate through each group of gaps between the powder scraping components (311), and the powder scraping components (311) scrape copper powder on the negative plate (1).

2. The automatic scraping apparatus for electrolytic copper powder according to claim 1, wherein: scrape powder subassembly (31) and still include powder collecting part (312), powder collecting part (312) with scrape powder part (311) one-to-one, and install in scrape the downside of powder part (311) for collect scrape the copper powder that powder part (311) scraped off.

3. The automatic scraping apparatus for electrolytic copper powder according to claim 1 or 2, characterized in that: the powder scraping mechanism (3) further comprises an adjusting assembly (33), and the adjusting assembly (33) is used for adjusting the gap between the powder scraping components (311) of each group.

4. The automatic scraping apparatus for electrolytic copper powder according to claim 3, wherein: adjusting part (33) include adjusting screw (331) and guide post (332), scrape the one end threaded connection of powder subassembly (31) in adjusting screw (331) is last, the other end rotate connect in on guide post (332), and every group two scrape that powder part (311) corresponds threaded connection screw thread on adjusting screw (331) turns to oppositely.

5. The automatic scraping apparatus for electrolytic copper powder according to claim 4, wherein: the adjusting screw rod (331) is rotatably installed on the moving assembly (32), a limiting groove (3213) is formed in the moving assembly (32), and the guide column (332) is slidably installed in the limiting groove (3213).

6. The automatic scraping apparatus for electrolytic copper powder according to claim 2, wherein: the powder scraping mechanism (3) further comprises a driving assembly (34), the driving assembly (34) is used for driving the powder scraping assembly (31) to incline, so that copper powder is poured out of the powder collecting component (312), and the driving assembly (34) is mounted on the moving assembly (32).

7. The automatic scraping apparatus for electrolytic copper powder according to claim 6, wherein: the automatic powder scraping device further comprises a transmission mechanism (4), the transmission mechanism (4) is installed on the moving assembly (32), the transmission mechanism (4) is correspondingly arranged at the inclined lower end of the powder scraping assembly (31) and used for transmitting copper powder poured out of the powder collecting component (312).

8. The automatic scraping apparatus for electrolytic copper powder according to claim 7, wherein: powder collecting component (312) is the powder collecting groove, the bottom wall (3121) of the inclined low end of the powder collecting groove is hinged to the side wall (3122) of the adjacent powder collecting groove through a pin shaft (3123), a torsion spring (3124) is installed on the pin shaft (3123), one end of the torsion spring (3124) is fixed to the bottom wall (3121), and the other end of the torsion spring is fixed to the side wall (3122).

9. The automatic scraping apparatus for electrolytic copper powder according to claim 5, wherein: the powder scraping mechanism (3) further comprises a cleaning assembly (35), the cleaning assembly (35) comprises a plurality of cleaning parts (351) and a power assembly (352), the cleaning parts (351) are installed in the powder collecting part (312), and the power assembly (352) is used for driving the cleaning parts (351) to clean the copper powder in the powder collecting part (312).

10. An automatic powder scraping process, which utilizes the automatic powder scraping device for electrolytic copper powder of claims 1-9 to scrape powder, and is characterized in that: the method comprises the following steps:

starting the lifting mechanism (2) to drive the cathode plate (1) to lift from the electrolytic bath;

the powder scraping mechanism (3) is horizontally moved to the lower side of the cathode plate (1) by using a moving assembly (32), the lifting mechanism (2) is started to drive the cathode plate (1) to move downwards and penetrate through gaps between each group of powder scraping components (311), and the powder scraping components (311) scrape copper powder on the cathode plate (1).

Technical Field

The invention relates to the technical field of electrolytic copper powder, in particular to an automatic powder scraping device for electrolytic copper powder.

Background

The copper powder has the advantages of good electrical and thermal conductivity, corrosion resistance, no magnetism and the like, and is widely applied to the industries of electrical and thermal conductive materials, friction materials, electrical contact materials, diamond tool materials, oil-bearing bearings, electric carbon products and the like. The preparation method of the copper powder is numerous, and mainly comprises a reduction method, an atomization method, an electrolysis method and the like, wherein the electrolysis copper powder has the characteristics of high purity, good formability, dendritic shape and the like, and is a main raw material for preparing high-speed rail brake pads, conductive paste and electric carbon products at present, and the quality of the electrolysis copper powder also becomes a decisive factor of the quality of finished products.

In the electrolytic process, copper ions in the electrolyte obtain electrons on the negative plate, and the electrons are reduced into copper powder to be separated out on the negative plate. In order to avoid the influence of the precipitated copper powder on the subsequent electrolytic process, the copper powder on the cathode plate is usually scraped off manually within a specified time. However, the manual powder scraping production efficiency is low, and the defects that the copper powder grows up and the quality of the copper powder is reduced due to the fact that powder scraping is not timely performed exist.

The patent document with the publication number of CN109853005B provides a powder device is scraped to copper for electrolytic copper production, including the grudging post, be provided with on the grudging post and be used for pressing from both sides tight and scrape the fixture of powder and drive the actuating mechanism of fixture up-and-down motion to the copper, set up the spout one of vertical trend on the grudging post, spout one inside sliding connection slider one, be fixed with the draw runner on the slider one, and slider one is located the middle part of draw runner, spout two perpendicular to spout one are seted up to inside the draw runner, spout two inside sliding connection sliders two, the lower extreme of slider one is fixed with vertical decurrent pull rod, fixture fixed connection is at the lower extreme of pull rod, the upper end of grudging post is fixed with the crossbeam, be fixed with the backplate on the crossbeam, and actuating mechanism fixes on the backplate, actuating mechanism is connected with slider two is articulated. By adopting the powder scraping device, powder can be scraped on the surfaces of the two sides of the negative plate.

However, the powder scraping device in the above related art can only scrape powder to one negative plate once, and in the actual production process, the polylith negative plate works simultaneously in the electrolysis bath, and the speed that the copper powder of the negative plate in the same electrolysis bath is appeared is roughly the same, utilizes above-mentioned powder scraping device to scrape powder one by one to a plurality of negative plates in the electrolysis bath, and is consuming time more, and production efficiency is low, and has and scrape the powder asynchronous, leads to the unstable defect of quality of copper powder.

Disclosure of Invention

In order to improve the production efficiency and the quality of the copper powder, the invention provides an automatic powder scraping device and an automatic powder scraping process for electrolytic copper powder

The utility model provides an automatic powder scraping device of electrolysis copper powder for scrape the copper powder on the negative plate and fall, its key lies in, includes: the lifting mechanism is used for driving the cathode plate to lift up from the electrolytic bath; the powder scraping mechanism comprises a plurality of groups of powder scraping assemblies, and each group of powder scraping assemblies comprises two powder scraping components which are parallel to each other and are arranged at intervals; the powder scraping mechanism further comprises a moving assembly, the powder scraping assembly is mounted on the moving assembly, the moving assembly enables the powder scraping assembly to horizontally move to the lower side of the negative plate, the lifting mechanism drives the negative plate to move downwards and penetrate through each group of gaps between the powder scraping components, and the powder scraping components scrape copper powder on the negative plate.

By adopting the technical scheme, the multi-group powder scraping assembly can scrape the copper powder on the negative plates in the electrolytic cell, so that the production efficiency is improved, and the quality of the copper powder is improved. Further, the flexibility that the device used can be improved to the removal subassembly, when not needing to scrape the powder, will scrape the powder subassembly and remove to the electrolysis trough outside, avoids hindering electrolysis work, when needing to scrape the powder, will scrape the powder firmware and remove to the electrolysis trough top, scrape powder work.

Optionally, the powder scraping assembly further comprises a powder collecting component, wherein the powder collecting component corresponds to the powder scraping components one to one, is mounted on the lower side of the powder scraping component, and is used for collecting copper powder scraped by the powder scraping component.

Through adopting above-mentioned scheme, can directly realize the recovery of electrolysis copper powder, avoid scraping the copper powder and get into the electrolysis trough, recycle pump sending electrolyte, filter electrolyte and realize the recovery of electrolysis copper powder, further improve work efficiency, practice thrift manufacturing cost to avoided in transportation and filtering process, the oxidation of copper powder.

Optionally, the powder scraping mechanism further comprises an adjusting assembly, and the adjusting assembly is used for adjusting the gap between each group of the powder scraping components.

By adopting the above scheme, once scrape the powder after, reduce and scrape the powder clearance, repeatedly scrape the powder, can scrape the copper powder on the negative plate more comprehensively, thoroughly.

Optionally, the adjusting part includes adjusting screw and guide post, scrape the one end threaded connection of powder subassembly in on the adjusting screw, the other end rotate connect in on the guide post, and every group two scrape that the powder part corresponds threaded connection screw thread on the adjusting screw is revolved to opposite.

By adopting the scheme, the precise adjustment of the gap can be realized, and the powder scraping efficiency and precision are ensured.

Optionally, the adjusting screw is rotatably mounted on the moving assembly, the moving assembly is provided with a limiting groove, and the guide post is slidably mounted in the limiting groove.

By adopting the scheme, the integration level of the device can be improved, the size of the device is reduced, and the flexibility of the device is improved.

Optionally, the powder scraping mechanism further comprises a driving assembly, the driving assembly is used for driving the powder scraping assembly to incline, so that the copper powder is poured out of the powder collecting component, and the driving assembly is mounted on the moving assembly.

By adopting the scheme, the concentrated collection of the copper powder can be conveniently realized, and the powder collection efficiency is improved.

Optionally, the automatic powder scraping device further comprises a transmission mechanism, the transmission mechanism is mounted on the moving assembly, and the transmission mechanism is correspondingly arranged at the inclined lower end of the powder scraping assembly and used for transmitting the copper powder poured out of the powder collecting component.

By adopting the scheme, the copper powder can be conveniently transported.

Optionally, the powder collecting component is a powder collecting groove, the bottom wall of the inclined low end of the powder collecting groove is hinged to the side wall of the adjacent powder collecting groove through a pin shaft, a torsion spring is mounted on the pin shaft, one end of the torsion spring is fixed to the bottom wall, and the other end of the torsion spring is fixed to the side wall.

By adopting the scheme, the copper powder can be automatically poured conveniently, and the copper powder is prevented from falling into the electrolytic cell in the powder scraping process.

Optionally, the powder scraping mechanism further comprises a cleaning assembly, the cleaning assembly comprises a plurality of cleaning parts and a power assembly, the cleaning parts are mounted in the powder collecting part, and the power assembly is used for driving the cleaning parts to clean copper powder in the powder collecting part.

By adopting the scheme, the electrolytic copper powder can be more thoroughly recovered.

Optionally, the power assembly comprises a driving motor, a connecting rod and a screw rod, the screw rod is fixedly connected with the power output end of the driving motor in a coaxial mode, the connecting rod is connected with the screw rod in a threaded mode, and the connecting rod is connected among the cleaning components.

By adopting the scheme, the copper powder can be automatically cleaned.

An automatic powder scraping process for scraping powder by using the automatic powder scraping device for electrolytic copper powder comprises the following steps: starting a lifting mechanism to drive the cathode plate to lift from the electrolytic bath; the powder scraping mechanism is horizontally moved to the lower side of the negative plate by the aid of the moving assembly, the lifting mechanism is started to drive the negative plate to move downwards and penetrate through gaps among the powder scraping components, and the powder scraping components scrape copper powder on the negative plate.

By adopting the technical scheme, the automatic powder scraping and direct recovery of the copper powder can be realized, the process is simple, and the method is suitable for industrial popularization.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the automatic powder scraping device for the electrolytic copper powder provided by the invention can realize simultaneous powder scraping of a plurality of negative plates in an electrolytic cell, so that the production efficiency is improved, and meanwhile, the quality of the electrolytic copper powder is improved. The amount of copper powder with the mesh size of more than or equal to 325 in the electrolytic copper powder is trace, the amount of copper powder with the mesh size of less than 325 is 100 wt%, the purity of the electrolytic copper powder reaches 99.95 wt%, and the oxygen content is 0.04 wt%.

2. The automatic powder scraping device for the electrolytic copper powder provided by the invention can realize the direct recovery of the electrolytic copper powder, and avoids the loss of the electrolytic copper powder in the transfer process and the adverse effect on the quality of the electrolytic copper.

3. The automatic powder scraping device for the electrolytic copper powder provided by the invention can realize the adjustment of the clearance of the powder scraping component, can adapt to electrolytic copper plates with different thicknesses, and can repeatedly scrape the powder by gradually reducing the clearance of the powder scraping in the process of scraping the powder, so that the copper powder can be more comprehensively and thoroughly scraped.

4. The automatic powder scraping process for the electrolytic copper powder provided by the invention can realize the integrated operation of powder collection and powder feeding, and improves the production efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an automatic powder scraping device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of an automatic powder scraping device according to an embodiment of the present invention;

FIG. 3 is a partially enlarged schematic view of an automatic powder scraping device according to an embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of the automatic powder scraping device according to the embodiment of the invention.

Description of reference numerals: 1. a cathode plate; 11. a cantilever; 2. a lifting mechanism; 211. a drive member; 212. a carrier plate; 213. positioning a plate; 2131. positioning a groove; 214. a guide bar; 3. a powder scraping mechanism; 31. a powder scraping component; 311. a powder scraping component; 312. a powder collecting member; 3121. a bottom wall; 3122. a side wall; 32. a moving assembly; 321. a movable frame; 3211. a support portion; 3212. a traveling section; 322. a roller; 323. a slide rail; 3213. a limiting groove; 33. an adjustment assembly; 331. adjusting the screw rod; 332. a guide post; 333. rotating the handle; 34. a drive assembly; 341. a drive member; 35. cleaning the assembly; 351. cleaning the component; 352. a power assembly; 3521. a drive motor; 3522. a connecting rod; 3523. a screw rod; 4. a transport mechanism; 41. a material guide plate; 42. a fixing plate; 43. a connecting arm; 5. and (4) a middle rotating barrel.

Detailed Description

The invention is described in further detail below with reference to figures 1-4.

The embodiment of the invention discloses an automatic powder scraping device for electrolytic copper powder, which is used for scraping the copper powder on a cathode plate 1. Referring to fig. 1, the automatic scraping device for electrolytic copper powder comprises a lifting mechanism 2 and a scraping mechanism 3. The cathode plate 1 is arranged on a lifting mechanism 2, and the lifting mechanism 2 is used for driving the cathode plate 1 to lift from the electrolytic bath. The electrolytic cell A in FIG. 1 shows a state in which the cathode plate 1 is lifted up from the electrolytic cell A by starting the lifting mechanism 2 when it is necessary to hang up the copper powder deposited on the cathode plate 1 after the electrolytic operation has been carried out for a predetermined time. The B cell in FIG. 1 shows a state where the cathode plate 1 is positioned in the B cell to perform electrolysis.

The lifting mechanism 2 comprises a driving part 211, a bearing plate 212, a positioning plate 213 and a guide rod 214, and the number of the driving part 211, the bearing plate 212, the positioning plate 213 and the guide rod 214 corresponding to each electrolytic cell is two or more. The electrolysis trough is the cuboid groove, polylith negative plate 1 along the width direction parallel arrangement of electrolysis trough, and negative plate 1's top fixed connection can be for ligature, bolted connection, bonding, welding, integrated into one piece etc. on cantilever 11, the mode of connecting perhaps has seted up the mounting hole on the negative plate 1, and cantilever 11 is pegged graft and is fixed in the mode of mounting hole. Referring to fig. 1, in the state shown in B, the two carrier plates 212 are respectively placed on the side walls in the width direction of the electrolytic cell, one or both side walls in the width direction of the electrolytic cell are provided with conductive parts electrically connected to the electrodes, and the carrier plates 212 and the positioning plates 213 are made of conductive material, such as copper, so that the cathode plate 1 is electrically connected to the conductive parts through the carrier plates 212 and the positioning plates 213. The bearing plate 212 is parallel to the width direction of the electrolytic bath, the two positioning plates 213 are respectively fixed on the opposite bearing plate 212, the length direction of the positioning plates 213 is parallel to the width direction of the electrolytic bath, and the fixing modes of the positioning plates 213 and the bearing plate 212 can be bolt fixing, bonding, welding fixing or integral forming. The positioning plate 213 has a plurality of positioning grooves 2131, and the positioning grooves 2131 are uniformly spaced along the length direction of the positioning plate 213. The positioning groove 2131 is provided with a groove downwards from the top surface of the positioning plate 213, one end of the positioning groove 2131 is open, the other end is closed, and the open end of the positioning groove 2131 faces the cantilever 11, so that two ends of the cantilever 11 can extend into the positioning groove 2131, and the outer walls of the two ends of the cantilever 11 are in contact with the inner wall of the positioning groove 2131, so that the cantilever 11 is limited to displace, and thus a plurality of cathode plates 1 are uniformly spaced and arranged in parallel, and meanwhile, the plate surface of each cathode plate 1 is parallel to two side walls in the width direction of the electrolytic bath.

Two drive disk assembly 211 set up respectively in two just bearing board 212 tip below, drive disk assembly 211 can adopt cylinder, electric cylinder or pneumatic cylinder etc. drive disk assembly 211's power take off end is fixed in bearing board 212 one tip on length direction, and guide bar 214 wears to locate bearing board 212 another tip on length direction for when bearing board 212 is vertical motion under drive disk assembly 211's drive, can make the face of bearing board 212 keep the level. In other embodiments, the guide rod 214 may be replaced with the driving member 211, and the driving member 211 is used at both ends of the carrier plate 212 in the length direction, so as to further improve the stability.

Referring to fig. 1 and 2, the powder scraping mechanism 3 comprises a plurality of groups of powder scraping assemblies 31 and a moving assembly 32, and the distance between the powder scraping assemblies 31 is equal to the distance between the cathode plates 1. Each group of powder scraping components 31 comprises two powder scraping components 311 which are parallel to each other and arranged at intervals, each powder scraping component 311 can be a rectangular powder scraping plate or a scraper, the material of each powder scraping component 311 is rubber or plastic, and the length direction of each powder scraping component 311 is parallel to the length direction of the electrolytic tank.

The moving assembly 32 includes a moving frame 321, a roller 322, and a sliding rail 323. The moving frame 321 includes a horizontal supporting portion 3211 and a vertical traveling portion 3212, the supporting portion 3211 and the traveling portion 3212 both adopt rectangular plates, and the plate surfaces of the two rectangular plates are coplanar, and form a "T" shaped moving frame 321 together. The roller 322 is rotatably mounted to the bottom of the traveling unit 3212 so that the movable frame 321 can travel on the slide rail 323. The slide rails 323 are two linear slide rails arranged parallel to the length direction of the electrolytic cell, the linear slide rails are respectively fixed on the ground at two sides of the electrolytic cell in the width direction, and the distances between the linear slide rails at the two sides and the electrolytic cell are equal.

In order to improve the flexibility of operation, the powder scraping assembly 31 is arranged on a moving assembly 32, as shown in the state of the B electrolytic tank in FIG. 1, and when the cathode plate 1 is positioned in the electrolytic tank for electrolysis, the moving assembly 32 moves to a position at one side of the electrolytic tank; when the cathode plate 1 reaches the specified electrolysis time and powder scraping is needed, firstly, the two driving parts 211 are started simultaneously to drive the two bearing plates 212 to rise and drive the two positioning plates 213 to rise, so that the cantilever 11 spanning between the two positioning plates 213 raises a plurality of parallel cathode plates 1 simultaneously to reach the state of an electrolytic bath A in figure 1. Then, the moving assembly 32 is pushed, so that the moving assembly drives the powder scraping assembly 31 to walk right below the cathode plate 1 and reach a preset position, the central line of each group of powder scraping assemblies 31 is respectively superposed with the projection of the central line of the cathode plate 1 to be scraped, the two driving parts 211 are started again, the two bearing plates 212 are driven to descend, the two positioning plates 213 are driven to descend, the cantilever 11 stretching between the two positioning plates 213 descends the cathode plate 1 with multiple parallel blocks simultaneously, in the process of downward movement of the cathode plate 1, the cathode plate 1 respectively penetrates through the gap between each group of powder scraping parts 311, the powder scraping parts 311 are in contact with copper powder on the cathode plate 1, and the copper powder is scraped.

Referring to fig. 2, the powder scraping assembly 31 further includes powder collecting members 312, and the powder collecting members 312 correspond to the powder scraping members 311 one by one and are fixedly connected to the lower sides of the powder scraping members 311. The powder scraping parts 311 are positioned at the outer sides of the two opposite powder collecting parts 312, and when the cathode plate 1 downwards passes through the gap between the powder scraping parts 311, the powder scraping parts 311 scrape the copper powder on the cathode plate 1 off and enter the powder collecting parts 312. It is more advantageous to incline the powder scraping component 311 by a certain angle, for example, by 15 ° to 45 ° from the vertical plate surface of the cathode plate 1, and the powder collecting component 312 is a rectangular powder collecting groove, the length direction of the powder collecting groove is parallel to the length direction of the powder scraping component 311, and the adjacent groove wall of the powder collecting groove powder scraping component 311 is coplanar with the inclined lower end of the powder scraping component 311, so as to be beneficial to guiding the scraped copper powder into the powder collecting groove for direct recovery of the copper powder.

The powder scraping mechanism 3 further comprises an adjusting assembly 33, the adjusting assembly 33 is used for adjusting the gap between each group of powder scraping parts 311 so as to adapt to the cathode plates 1 with different thicknesses, and further, the copper powder on the cathode plates 1 can be more comprehensively and thoroughly scraped through gradually reducing the gap between the powder scraping parts 311. The adjusting assembly 33 comprises an adjusting screw 331 and a guiding column 332, the adjusting screw 331 is rotatably mounted between the two supporting portions 3211 of the moving assembly 32, and the axial direction of the adjusting screw 331 is parallel to the width direction of the electrolytic cell. The supporting portions 3211 are provided with a limiting groove 3213 at one end away from the adjusting screw 331, the limiting groove 3213 is disposed obliquely at an angle of 60 ° -80 ° to the horizontal direction, the guide posts 332 penetrate through the limiting grooves 3213 of the two supporting portions 3211, and the axial direction of the guide posts 332 is parallel to the axial direction of the adjusting screw 331. To facilitate the rotation of the adjustment screw 331, a rotation handle 333 is attached to an end of the adjustment screw 331. One end of the powder scraping component 311 in the powder scraping component 31 is connected to the adjusting screw 331 through the connecting block threads, the other end of the powder scraping component 311 is connected to the guide post 332 through the connecting block in a rotating manner, two powder scraping components 311 in each group are arranged right opposite to each other, and the threads on the adjusting screw 331 correspondingly connected with the threads are opposite in rotating direction, so that when the adjusting screw 331 is rotated through the rotating handle 333, the two powder scraping components 311 are far away from each other or are close to each other. The rotary handle 333 is provided with scales, 1 degree is taken as a unit, 360 degrees are rotated for 1 turn, the adjusting screw 311 is a single-line lead screw, the lead of the lead screw is 1mm, the rotary handle rotates for 1 degree, and the powder scraping component 311 walks 1/360mm on the lead screw. In other embodiments, a lead screw with more than two leads can be used, and the lead of the lead screw is selected according to the actual adjusting distance.

Taking the embodiment as an example, the thickness of the cathode plate 1 is 10mm, the initial gap between the two powder scraping components 311 is set to be 10mm +30 μm, the current density is controlled to be 1500A/square meter during electrolysis, the copper ion concentration is accurately controlled to be 4-6g/L, the acidity is accurately controlled to be 145g/L, the powder scraping period is 30 minutes, and when powder is scraped, the driving component 211 is started to descend once to drive the cathode plate 1 to move downwards, so that one-time powder scraping is completed; then the handle is rotated for 360 degrees to drive the two powder scraping components 311 to respectively move back to back for 1mm, the driving component 211 is started to ascend, and the cathode plate 1 is lifted; the handle is rotated 360 degrees +3 degrees in the reverse direction, the two powder scraping components 311 walk 1mm +8 microns in opposite directions respectively, the driving component 211 is started to descend again, the negative plate 1 is driven to move downwards, the powder scraping for the second time is completed, and then the powder scraping components 311 are restored to the position of the initial gap. The above operation is repeated every 30 minutes to complete the powder scraping process, so that the copper powder on the cathode plate 1 enters the powder collecting part 312. More than 60% of copper powder on the cathode plate 1 can be scraped off for the first time, and more than 85% of copper powder on the cathode plate 1 can be scraped off for the second time. In other embodiments, the thickness of the cathode plate 1 is different, and the thickness of the electrolytic copper powder layer is different, so that the gap can be adjusted according to actual needs.

In order to conveniently collect the copper powder in a centralized manner from the powder collecting parts 312, the powder scraping mechanism 3 further comprises a driving assembly 34, and the driving assembly 34 is used for driving the powder scraping assembly 31 to incline, so that the copper powder is poured out of the powder collecting parts 312. The driving assembly 34 includes two driving members 341, the driving members 341 may adopt a cylinder, an electric cylinder or a hydraulic cylinder, etc., the cylinder is hinged on the supporting portion 3211 through a pin, a sleeve ring is fixedly disposed at the end of the piston, and the guide post 332 is sleeved with the sleeve ring. The driving part 341 is started to drive the guiding column 332 to move in the limiting groove 3213, so that the guiding column 332 drives the powder scraping component 31 to rotate around the adjusting screw 331, and the copper powder in the powder collecting part 312 is inclined out in the rotating process.

Referring to fig. 2 and 3, at the inclined lower end of the powder scraping assembly 31, a conveying mechanism 4 is provided for conveying the copper powder poured out of the powder collecting member 312. The conveying mechanism 4 may adopt a belt conveyor, a chain conveyor, or the like. The transmission mechanism 4 is mounted on the supporting portion 3211, a material guide plate 41 is mounted at a discharge opening of the transmission mechanism 4, and an upper end of the material guide plate 41 is hinged to the transmission mechanism 4 and is connected to the fixing plate 42 through a foldable connecting arm 43. The fixing plate 42 is vertically fixed on the transmission mechanism 4, the connecting arm 43 comprises two connecting rods, the end parts connected with the two connecting rods are hinged to each other, the other end parts are hinged to the fixing plate 42 and the material guide plate 41 respectively, and when the device works, the connecting arm 43 is opened to be in a straight state, and when the device does not work, the connecting arm 43 is folded to be in a V shape. And a material dropping port of the material guide plate 41 is provided with a transfer barrel 5, the transfer barrel 5 is used for transporting the collected copper powder into a subsequent process, and the collected copper powder is washed, saponified, dehydrated, dried, reduced, crushed and screened. In other embodiments, the transfer mechanism 4 may be directly interfaced with a subsequent washing device to transport copper powder directly to the washing device.

Referring to fig. 3, the bottom wall 3121 of the inclined lower end of the powder collecting component 312 is hinged to the adjacent side wall 3122 through a pin 3123, and a torsion spring 3124 is installed on the pin 3123, one end of the torsion spring 3124 is fixed to the bottom wall 3121, and the other end is fixed to the side wall 3122. The torsional spring is under natural state, mutually perpendicular between diapire 3121 and the lateral wall 3122, and diapire 3121 seals the tip of powder collection part 312, avoids scraping the powder in-process, and the copper powder drops from both sides tip. When the copper powder is poured, the powder collecting member 312 is inclined, and the bottom wall 3121 is opened due to the gravity, so that the copper powder can be poured out smoothly.

In order to collect the copper powder in the powder collecting component 312 more thoroughly, referring to fig. 4, the powder scraping mechanism 3 further includes a cleaning assembly 35, the cleaning assembly 35 includes a plurality of cleaning components 351 and a power assembly 352, the cleaning components 351 may adopt a cleaning plate inclined at 45 °, the cleaning components 351 are slidably disposed in the powder collecting component 312, an outer wall of the cleaning components 351 is attached to the powder collecting component 312, and the power assembly 352 is used for driving the cleaning components 351 to travel from a high inclined end to a low inclined end of the powder collecting component 312 to clean the copper powder in the powder collecting component 312.

The power assembly 352 comprises a driving motor 3521, a connecting rod 3522 and a screw rod 3523, the screw rod 3523 is coaxially and fixedly connected with a power output end of the driving motor 3521, the connecting rod 3522 is in threaded connection with the screw rod 3523, and the connecting rod 3522 is connected among the cleaning components 351. The driving motor 3521 is started, the lead screw 3523 is driven to rotate, and therefore the connecting rod 3522 drives the cleaning components 351 to walk to clean copper powder. The driving motor 3521 is a forward and reverse rotating motor, and after cleaning is completed, the cleaning component 351 is driven to reset.

The screening component amount of the electrolytic copper powder is detected, and the result shows that the amount of the copper powder with the mesh number more than or equal to 325 in the electrolytic copper powder is trace, the amount of the copper powder with the mesh number less than 325 is 100 wt%, the purity of the electrolytic copper powder reaches 99.95 wt%, and the oxygen content is 0.04 wt%; in the traditional manual powder scraping process, the amount of copper powder with the mesh size of not less than 325 is 10 weight percent, the amount of copper powder with the mesh size of less than 325 is 90 weight percent, the purity of electrolytic copper powder is 99.90 weight percent, and the oxygen content is 0.06 weight percent. Conventional powder technology of scraping needs the later stage to utilize the industrial pump to pump into the washing device with the mixed liquid of electrolyte and copper powder together and filters electrolyte, collects the copper powder, transports and about 5 wt% of copper powder loss in the filtering process, and the automatic powder device of scraping of this application directly collects the copper powder, has avoided transporting and copper powder loss in the filtering process.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the mechanism, shape and principle of the invention are covered by the protection scope of the invention.