Tin removing device for circuit board recycling

The combined design of heat conduction blocks and exhaust fans solves the problems of uneven heating and burns during circuit board recycling, achieving a safe and efficient solder melting and removal process.

CN223325606UActive Publication Date: 2025-09-12SHAANXI CHANGRONG QINGMIAO INFORMATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422559627.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-09-12
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

The hot air heating range of existing circuit board recycling and detinning equipment is small and can easily burn people, affecting the removal efficiency.

Method used

A heat-conducting block is used to absorb the heat of the electric heating wire and conduct it to the stainless steel sleeve to heat the circuit board. An exhaust fan is used to extract the hot air and blow it onto the circuit board. The heating temperature is controlled by a thermostat, and a high-definition camera is used to assist in dismantling.

Benefits of technology

It achieves uniform heating, improves the melting efficiency of solder, avoids the risk of burns, and improves the safety and efficiency of removing electronic components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of circuit board recovery, in particular to a tin removal device for circuit board recovery, which comprises a base, a heating assembly is arranged at the top of the base and comprises a stainless steel sleeve plate embedded at the top of the base, and a heat conduction block is embedded in the stainless steel sleeve plate. Electric heating wires are fixed in the heat conduction block at equal intervals through bolts; a reserved groove is formed in the top, located on one side of the stainless steel sleeve plate, of the base, a suction assembly is arranged at the top end, located on the top of the reserved groove, of the base, the suction assembly comprises a ventilation box fixed to the top of the base through bolts, and suction fans are installed in the ventilation box at equal intervals through an installation frame. The heat conduction block absorbs the temperature heated by the electric heating wire and conducts the temperature to the stainless steel sleeve plate, the circuit board placed on the stainless steel sleeve plate is heated, the whole circuit board can be heated, the draft fan can extract hot air heated by the heat conduction block and blow the hot air to the top of the circuit board, and the heating efficiency can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of circuit board recycling, in particular to a detinning device for circuit board recycling. Background Art

[0002] A circuit board is a crucial component in electronic devices, used to support electronic components and provide circuits to connect them. It provides a platform that allows electronic components such as resistors, capacitors, and integrated circuits to be connected together through wires, thus realizing circuit functions.

[0003] With the continuous updating of electronic products, the number of discarded electronic products is also increasing. Among these discarded electronic products, a large number of electronic waste materials such as circuit boards and circuit boards contain metals and chemicals that are harmful to the human body and the environment. If these electronic wastes are not properly handled, they will cause serious damage to the environment. Circuit board recycling can effectively reduce the emission of these electronic wastes and protect the environment.

[0004] After recycling, the circuit boards need to be detinned to remove the electronic components soldered on the circuit boards. The existing detinning devices for recycling circuit boards all use hot air to heat the solder on the circuit boards. The hot air heating range is small and it is easy to burn the hands of personnel, affecting the removal of electronic components on the circuit boards. Therefore, a detinning device for recycling circuit boards is proposed. The heat conductive block absorbs the temperature heated by the electric heating wire and transmits it to the stainless steel sleeve to heat the circuit board on the stainless steel sleeve. The exhaust fan can extract the hot air heated by the heat conductive block and blow it onto the circuit board. Utility Model Content

[0005] In response to the problems in the prior art, the utility model provides a detinning device for recycling circuit boards. The heat-conducting block absorbs the temperature heated by the electric heating wire and conducts it to the stainless steel sleeve, thereby heating the circuit board on the stainless steel sleeve. The exhaust fan can extract the hot air heated by the heat-conducting block and blow it onto the circuit board.

[0006] The technical solution adopted by the utility model to solve the technical problem is a detinning device for recycling circuit boards, comprising a base, a heating component provided on the top of the base, the heating component comprising a stainless steel sleeve embedded in the top of the base, a heat conducting block embedded in the stainless steel sleeve, and electric heating wires fixed equidistantly inside the heat conducting block by bolts;

[0007] The base is provided with a reserved groove at the top of one side of the stainless steel sleeve, and a suction assembly is provided at the top of the base at the top of the reserved groove. The suction assembly includes a ventilation box fixed to the top of the base by bolts, and exhaust fans are equidistantly installed inside the ventilation box through a mounting frame.

[0008] By adopting the above technical solution, the heat-conducting block absorbs the temperature heated by the electric heating wire and conducts it to the stainless steel sleeve, thereby heating the circuit board placed on the stainless steel sleeve. The exhaust fan can extract the hot air heated by the heat-conducting block and blow it to the top of the circuit board.

[0009] Specifically, through holes are opened at equal intervals on one side of the base, one end of the through hole passes through the heat conductive block and is connected to the reserved groove, and a dustproof net is fixed inside the through hole through a card slot.

[0010] Specifically, a guide block is fixed to one end of the interior of the ventilation box by bolts, a protective net is fixed to one side of the ventilation box by bolts, and a protective cover is welded to one side of the ventilation box located on the top of the protective net.

[0011] Specifically, a temperature controller is installed at one end of the base located at the bottom of the through hole through a mounting seat, the detection end of the temperature controller is located inside the heat conductive block, and the current output end of the temperature controller is electrically connected to the current input end of the electric heating wire through a power line.

[0012] Specifically, a support frame is fixed to the top of the ventilation box by bolts, a display screen is installed on one side of the support frame through a mounting frame, and a high-definition camera is fixed to the top of the display screen by bolts.

[0013] Specifically, storage boxes are provided on both sides of the base.

[0014] Beneficial effects of the utility model:

[0015] (1) The detinning device for recycling circuit boards described in the present invention controls the heating of an electric heating wire by a temperature controller. The temperature of the electric heating wire is transferred to the heat conducting block and then to the stainless steel sleeve, thereby heating the circuit board on the stainless steel sleeve and melting the solder on the circuit board.

[0016] (2) The utility model discloses a detinning device for recycling circuit boards. When the exhaust fan is turned on, the hot air on the heat conductive block is extracted into the reserved groove through the through hole. The hot air in the reserved groove flows into the exhaust fan, and is guided by the guide block and then blown out from the protective net. The top of the circuit board can be heated, thereby improving the heating efficiency and allowing the solder to melt quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the base of the utility model;

[0020] Figure 3This is a schematic diagram of the structure of the suction component of the present utility model;

[0021] Figure 4 This is a schematic diagram of the support frame structure of the utility model;

[0022] In the figure: 1. Base; 2. Heating component; 201. Stainless steel sleeve; 202. Heat conduction block; 203. Electric heating wire; 3. Suction component; 301. Ventilation box; 302. Exhaust fan; 303. Guide block; 304. Protective net; 305. Protective cover; 4. Through hole; 5. Support frame; 501. Display screen; 502. Electronic magnifying glass; 6. Thermostat; 7. Reserved slot; 8. Dust net; 9. Storage box. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] The heat conduction block absorbs the heat from the electric heating wire and conducts it to the stainless steel sleeve to heat the circuit board on the stainless steel sleeve. The exhaust fan can extract the hot air from the heat conduction block and blow it to the circuit board. Figure 1-4 As shown, the detinning device for recycling circuit boards described in the present invention includes a base 1, a heating component 2 is provided on the top of the base 1, and the heating component 2 includes a stainless steel sleeve 201 embedded in the top of the base 1, a heat conducting block 202 is embedded in the stainless steel sleeve 201, and electric heating wires 203 are fixed to the heat conducting block 202 at equal intervals by bolts;

[0025] A reserved groove 7 is provided at the top of the base 1 on one side of the stainless steel sleeve 201, and a suction component 3 is provided at the top of the base 1 on the top of the reserved groove 7. The suction component 3 includes a ventilation box 301 fixed to the top of the base 1 by bolts, and exhaust fans 302 are equidistantly installed inside the ventilation box 301 through a mounting frame.

[0026] During use, the heat conductive block 202 absorbs the temperature heated by the electric heating wire 203 and conducts it to the stainless steel sleeve 201, thereby heating the circuit board placed on the stainless steel sleeve 201. The exhaust fan 302 can extract the hot air heated by the heat conductive block 202 and blow it to the top of the circuit board.

[0027] For example, Figure 2 As shown, the present invention also includes through holes 4 equidistantly provided on one side of the base 1 , one end of the through hole 4 passes through the heat conductive block 202 and is connected to the reserved groove 7 , and a dustproof net 8 is fixed inside the through hole 4 through a card slot.

[0028] When in use, the exhaust fan 302 draws external air into the through hole 4 to facilitate air flow, and the dustproof net 8 can prevent external dust and the like from entering the through hole 4 .

[0029] For example, Figure 3 As shown, the utility model also includes a guide block 303 fixed to one end of the interior of the ventilation box 301 by bolts, a protective net 304 fixed to one side of the ventilation box 301 by bolts, and a protective cover 305 welded to one side of the ventilation box 301 located on the top of the protective net 304.

[0030] When in use, the guide block 303 can guide the hot air drawn into the ventilation box 301 so that the hot air can be blown out through the protective net 304, and the protective cover 305 can guide the blown hot air so that the hot air can be blown onto the circuit board.

[0031] For example, Figure 1 、 Figure 2 As shown, the utility model also includes that a thermostat 6 is installed at one end of the base 1 located at the bottom of the through hole 4 through a mounting seat, the detection end of the thermostat 6 is located inside the heat conductive block 202, and the current output end of the thermostat 6 is electrically connected to the current input end of the electric heating wire 203 through a power line.

[0032] When in use, the heating of the electric heating wire 203 and its heating temperature can be controlled by the temperature controller 6 .

[0033] For example, Figure 4 As shown, the utility model also includes that a support frame 5 is fixed to the top of the ventilation box 301 by bolts, a display screen 501 is installed on one side of the support frame 5 through a mounting frame, and a high-definition camera 502 is fixed to the top of the display screen 501 by bolts.

[0034] When in use, the high-definition camera 502 can capture the image on the circuit board and transmit it to the display screen 501 for display, making it convenient for personnel to view.

[0035] For example, Figure 1 As shown, the present invention further includes storage boxes 9 provided on both sides of the base 1 .

[0036] When in use, the storage box 9 is provided to facilitate the placement of electronic components removed from the circuit board.

[0037] When using the utility model, personnel use a power cord to connect the device to an external power source and place the circuit board on the stainless steel sleeve 201;

[0038] The electric heating wire 203 is heated by the thermostat 6. The temperature of the electric heating wire 203 is transferred to the heat conducting block 202 and then to the stainless steel sleeve 201, thereby heating the circuit board on the stainless steel sleeve 201, thereby melting the solder on the circuit board, making it easier for personnel to remove the solder and electronic components on the circuit board.

[0039] Turn on the exhaust fan 302 to extract the hot air from the heat conducting block 202 into the reserved groove 7 through the through hole 4. The hot air in the reserved groove 7 flows into the exhaust fan 302, is guided by the guide block 303, and is blown out from the protective net 304. This can heat the top of the circuit board, improve the heating efficiency, and quickly melt the solder.

[0040] The high-definition camera 502 can capture the image on the circuit board and transmit it to the display screen 501 for display, making it convenient for personnel to view and remove smaller electronic components on the circuit board.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A detinning device for recycling circuit boards, characterized in that: The invention comprises a base (1), a heating component (2) is provided on the top of the base (1), the heating component (2) comprises a stainless steel sleeve (201) embedded in the top of the base (1), a heat conducting block (202) is embedded in the stainless steel sleeve (201), and electric heating wires (203) are fixed to the inside of the heat conducting block (202) at equal intervals by bolts; A reserved groove (7) is provided at the top of the base (1) on one side of the stainless steel sleeve (201), and a suction assembly (3) is provided at the top of the base (1) located at the top of the reserved groove (7). The suction assembly (3) includes a ventilation box (301) fixed to the top of the base (1) by bolts, and exhaust fans (302) are equidistantly installed inside the ventilation box (301) via a mounting frame.

2. A tin removal device for recycling circuit boards according to claim 1, characterized in that: Through holes (4) are equidistantly provided on one side of the base (1), one end of the through hole (4) passes through the heat conducting block (202) and is connected to the reserved groove (7), and a dustproof net (8) is fixed inside the through hole (4) via a slot engagement.

3. A detinning device for recycling circuit boards according to claim 1, characterized in that: A guide block (303) is fixed to one end of the ventilation box (301) via bolts, a protective net (304) is fixed to one side of the ventilation box (301) via bolts, and a protective cover (305) is welded to one side of the ventilation box (301) located on top of the protective net (304).

4. A detinning device for recycling circuit boards according to claim 1, characterized in that: A temperature controller (6) is mounted on one end of the base (1) located at the bottom of the through hole (4) via a mounting seat. The detection end of the temperature controller (6) is located inside the heat-conducting block (202). The current output end of the temperature controller (6) is electrically connected to the current input end of the electric heating wire (203) via a power line.

5. A detinning device for recycling circuit boards according to claim 1, characterized in that: A support frame (5) is fixed to the top of the ventilation box (301) via bolts, a display screen (501) is mounted on one side of the support frame (5) via a mounting frame, and a high-definition camera (502) is fixed to the top of the display screen (501) via bolts.

6. A detinning device for recycling circuit boards according to claim 1, characterized in that: Storage boxes (9) are provided on both sides of the base (1).