Waste PCB copper powder recycling and efficient drying device

Abstract

The utility model relates to the technical field of PCB copper powder drying, in particular to a waste PCB copper powder recovery efficient drying device which comprises a drying box, the front surface of the drying box is fixedly connected with a mounting plate, the front surface of the mounting plate is fixedly connected with an electric push rod, the rear surface of the drying box is fixedly connected with a mounting seat, and the electric push rod is fixedly connected with an electric push rod. The upper surface of the mounting base is fixedly connected with a stepping motor, the output end of the stepping motor is fixedly connected with a worm, and the front surface of the drying box is rotationally connected with a stirring shaft. According to the copper powder stirring device, when the stirring frame rotates, the hopper can shovel copper powder at the bottom of the drying box conveniently, and when the hopper moves to the high position, the copper powder is poured out; the copper powder in different layers in the drying box makes contact with hot air blown out of the air inlet pipe, the drying efficiency of the copper powder is improved, the copper powder contained in the discharging groove is screened at a time, the screening pressure of the copper powder is relieved, the discharging groove is shaken through the vibration motor, and the screen is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB copper powder drying, in particular to a high-efficiency drying device for recovering copper powder from waste PCBs. Background Art

[0002] In the process of recycling copper powder of PCB board, moisture may be introduced due to various reasons (such as cleaning, crushing and other steps). If the moisture is not removed, it may have an adverse effect on subsequent separation, purification and other steps, reducing the recycling efficiency. However, the drying device in the prior art has certain disadvantages when used. For example, the copper powder recovery device for a circuit board grinding machine described in publication number CN220642713U includes a recovery box, a recovery pipe is fixedly connected to the top of the recovery box, a recovery device for filtering, drying and collecting copper powder is fixedly arranged in the recovery box, and a discharge port is fixedly arranged on the outer wall of the recovery box;

[0003] The above device can effectively filter out iron impurities in the waste, making the recovered copper powder higher in purity. However, for drying, the copper powder accumulates on the filter plate, and the copper powder of different depths cannot contact the heating component, resulting in reduced drying efficiency of the device, and the copper powder after drying cannot be screened, resulting in uneven copper powder particles in the finished product. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency drying device for recovering copper powder from waste PCB boards, so as to solve the problems raised in the above-mentioned background technology.

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

[0006] A high-efficiency drying device for recycling copper powder of waste PCB boards, comprising a drying box, a mounting plate fixedly connected to the front surface of the drying box, an electric push rod fixedly connected to the front surface of the mounting plate, a mounting seat fixedly connected to the rear surface of the drying box, a stepping motor fixedly connected to the upper surface of the mounting seat, a worm fixedly connected to the output end of the stepping motor, a stirring shaft rotatably connected to the front surface of the drying box, a stirring frame fixedly connected to the outer surface of the stirring shaft, a worm gear fixedly connected to one end of the stirring shaft, an air intake pipe embedded in the front surface of the drying box, a material discharge box nestedly connected to the outer surface of the drying box, a material discharge box rotatably connected to the inner surface of the material discharge box, and a screening box nestedly connected to the outer surface of the material discharge box.

[0007] Furthermore, a feed port is provided on the upper surface of the drying box, an arc-shaped groove is provided on the front surface of the drying box, an arc-shaped baffle is slidably connected inside the arc-shaped groove, and the arc-shaped baffle is fixedly connected to the mounting plate.

[0008] Preferably, an insert plate is fixedly connected to the output end of the electric push rod, and a clamping plate is fixedly connected to the other end of the stirring shaft.

[0009] Furthermore, the worm and the worm wheel are meshingly connected, and a plurality of hoppers are fixedly connected to the inner surface of the stirring frame.

[0010] Furthermore, a feeding roller is fixedly connected to the outer surface of the feeding shaft, and a feeding groove is provided on the outer surface of the feeding roller.

[0011] Furthermore, a screen is fixedly connected inside the screening box, a vibration motor is fixedly connected to the upper surface of the screen, and a discharge door is hingedly connected to the outer surface of the screen.

[0012] Furthermore, one end of the unloading shaft and one end of the stirring shaft are both fixedly connected with synchronous wheels, and the outer surface of the synchronous wheel is nested with a synchronous belt.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The hopper is set up to scoop up the copper powder at the bottom of the drying box when the mixing frame rotates, and dump the copper powder when the hopper moves to the high point, so that the copper powder at different levels in the drying box can contact with the hot air blown out by the air inlet pipe, thereby improving the drying efficiency of the copper powder.

[0015] 2. Through the set feeding box, when the feeding shaft drives the feeding rod to rotate, the copper powder falls into the feeding trough. As the feeding trough moves, the copper powder falls onto the screen. The copper powder contained in the feeding trough is screened at one time to reduce the pressure of copper powder screening. The vibration motor makes the feeding trough shake to avoid clogging of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the internal structure of the drying box of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the material box of the utility model.

[0020] In the figure: 1. Drying box; 101. Feed inlet; 102. Arc groove; 103. Mounting plate; 104. Arc baffle; 105. Electric push rod; 106. Insert plate; 2. Mounting seat; 201. Stepper motor; 202. Worm; 203. Worm wheel; 204. Inlet pipe; 3. Stirring shaft; 301. Stirring frame; 302. Hopper; 303. Snap-on plate; 4. Discharge box; 401. Discharge shaft; 402. Synchronous wheel; 403. Synchronous belt; 404. Discharge rod; 405. Discharge trough; 5. Screening box; 501. Screen; 502. Discharge door; 503. Vibration motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4 In the embodiment of the utility model, a high-efficiency drying device for recycling copper powder of waste PCB boards includes a drying box 1, a mounting plate 103 is fixedly connected to the front surface of the drying box 1, an electric push rod 105 is fixedly connected to the front surface of the mounting plate 103, a mounting seat 2 is fixedly connected to the rear surface of the drying box 1, a stepping motor 201 is fixedly connected to the upper surface of the mounting seat 2, a worm 202 is fixedly connected to the output end of the stepping motor 201, a stirring shaft 3 is rotatably connected to the front surface of the drying box 1, a stirring frame 301 is fixedly connected to the outer surface of the stirring shaft 3, a worm gear 203 is fixedly connected to one end of the stirring shaft 3, an air inlet pipe 204 is embedded in the front surface of the drying box 1, a material box 4 is nested and connected to the outer surface of the drying box 1, a material box 4 is rotatably connected to the inner surface of the material box 4, and a screening box 5 is nested and connected to the outer surface of the material box 4.

[0023] Specifically, when in use, the copper powder washed with water from the shaking table is put into the drying box 1, the air inlet pipe 204 is connected to the external hot air delivery pipeline, the stirring shaft 3 is started, and the accumulated copper powder is lifted up through the stirring frame 301 to prevent the hot air from only contacting the surface copper powder, thereby improving the heating efficiency of the copper powder. The dried copper powder falls into the discharge box 4, and the discharge box 4 slowly discharges the material, thereby reducing the screening pressure of the screening box 5.

[0024] Embodiment 1

[0025] like Figure 1-4As shown, a feed port 101 is provided on the upper surface of the drying box 1, an arc-shaped groove 102 is provided on the front surface of the drying box 1, an arc-shaped baffle 104 is slidably connected inside the arc-shaped groove 102, the arc-shaped baffle 104 and the mounting plate 103 are fixedly connected, the output end of the electric push rod 105 is fixedly connected to the insertion plate 106, and the other end of the stirring shaft 3 is fixedly connected to the clamping plate 303.

[0026] In this embodiment, after starting the stepper motor 201, the output end of the stepper motor 201 drives the worm 202 to rotate, so that the worm 202 drives the worm wheel 203 to rotate, and further rotates the stirring shaft 3. When the stirring shaft 3 rotates, it drives the clamping plate 303 to rotate. At this time, the electric push rod 105 is started, and the output end of the electric push rod 105 contracts, so that the insertion plate 106 moves inward. When the clamping plate 303 rotates, it contacts the insertion plate 106, so that the mounting plate 103 is subjected to force and drives the arc baffle 104 to move, so that the drying box 1 and the discharge box 4 are connected, which is convenient for the discharge of copper powder.

[0027] like Figure 1-4 As shown, the worm 202 and the worm wheel 203 are meshed and connected, and a plurality of hoppers 302 are fixedly connected to the inner surface of the stirring frame 301 .

[0028] In this embodiment, the hopper 302 is convenient for scooping up the copper powder at the bottom of the drying box 1 when the stirring frame 301 rotates, and pouring the copper powder when the hopper 302 moves to a high point position, so that the copper powder at different layers in the drying box 1 is in contact with the hot air blown out by the air inlet pipe 204, thereby improving the drying efficiency of the copper powder.

[0029] Embodiment 2

[0030] On the basis of Example 1, in order to make up for the problem that it is inconvenient to screen the dried copper powder in Example 1.

[0031] like Figure 4 As shown, a discharge rod 404 is fixedly connected to the outer surface of the discharge shaft 401, a discharge trough 405 is provided on the outer surface of the discharge rod 404, a screen 501 is fixedly connected to the interior of the screening box 5, a vibration motor 503 is fixedly connected to the upper surface of the screen 501, and a discharge door 502 is hinged on the outer surface of the screen 501.

[0032] In this embodiment, when the feed shaft 401 drives the feed rod 404 to rotate, the copper powder falls into the feed trough 405. As the feed trough 405 moves, the copper powder falls onto the screen 501. The copper powder contained in the feed trough 405 is screened at one time to reduce the pressure of copper powder screening. The vibration motor 503 makes the feed trough 405 shake to avoid clogging of the screen 501.

[0033] like Figure 4As shown, one end of the unloading shaft 401 and one end of the stirring shaft 3 are both fixedly connected with a synchronous wheel 402 , and the outer surface of the synchronous wheel 402 is nested with a synchronous belt 403 .

[0034] In this embodiment, the stirring shaft 3 and the discharge shaft 401 rotate synchronously through the synchronous belt 403 and the synchronous wheel 402. When processing wet copper powder, the dry copper powder in the discharge box 4 can be discharged, reducing the use of power components and saving the parts cost of the device.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An efficient drying device for recovering copper powder from waste PCBs, comprising a drying oven, characterized in that: The front surface of the drying box is fixedly connected to a mounting plate, the front surface of the mounting plate is fixedly connected to an electric push rod, the rear surface of the drying box is fixedly connected to a mounting seat, the upper surface of the mounting seat is fixedly connected to a stepping motor, the output end of the stepping motor is fixedly connected to a worm, the front surface of the drying box is rotatably connected to a stirring shaft, the outer surface of the stirring shaft is fixedly connected to a stirring frame, one end of the stirring shaft is fixedly connected to a worm gear, the front surface of the drying box is embedded with an air intake pipe, the outer surface of the drying box is nested with a discharge box, the inner surface of the discharge box is rotatably connected to a discharge shaft, and the outer surface of the discharge box is nested with a screening box.

2. A waste PCB copper powder recovery and high-efficiency drying device according to claim 1, characterized in that: A feed port is provided on the upper surface of the drying box, an arc-shaped groove is provided on the front surface of the drying box, an arc-shaped baffle is slidably connected inside the arc-shaped groove, and the arc-shaped baffle is fixedly connected to the mounting plate.

3. A waste PCB copper powder recovery and high-efficiency drying device according to claim 2, characterized in that: An insert plate is fixedly connected to the output end of the electric push rod, and a clamping plate is fixedly connected to the other end of the stirring shaft.

4. The high-efficiency drying device for recovering copper powder from waste PCB according to claim 1, characterized in that: The worm and the worm wheel are meshingly connected, and a plurality of hoppers are fixedly connected to the inner surface of the stirring frame.

5. The high-efficiency drying device for recovering copper powder from waste PCB according to claim 1, characterized in that: A feeding roller is fixedly connected to the outer surface of the feeding shaft, and a feeding groove is arranged on the outer surface of the feeding roller.

6. The high-efficiency drying device for recovering copper powder from waste PCB according to claim 1, characterized in that: A screen is fixedly connected to the interior of the screening box, a vibration motor is fixedly connected to the upper surface of the screen, and a discharge door is hingedly connected to the outer surface of the screen.

7. The high-efficiency drying device for recovering copper powder from waste PCBs according to claim 1 is characterized in that: One end of the unloading shaft and one end of the stirring shaft are both fixedly connected with synchronous wheels, and the outer surface of the synchronous wheel is nested and connected with a synchronous belt.

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