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Hot air heating and vibratory force applying disassembly equipment for waste and used circuit boards

A waste circuit board and hot air heating technology, which is applied in metal processing equipment, welding equipment, electronic waste recycling, etc., can solve the problems of not being solved well at the same time, and achieve the effect of improving dismantling rate, improving efficiency, and reducing inertia

Inactive Publication Date: 2012-09-05
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the inventions so far have solved these difficulties well at the same time

Method used

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  • Hot air heating and vibratory force applying disassembly equipment for waste and used circuit boards
  • Hot air heating and vibratory force applying disassembly equipment for waste and used circuit boards
  • Hot air heating and vibratory force applying disassembly equipment for waste and used circuit boards

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The dismantling equipment in this embodiment includes a hot air heating system 1, a transmission system 2, a fixture 3, an excitation mechanism 4, a sweeping mechanism 5, a component sending mesh belt 6, and an exhaust gas suction port 7. The overall structure diagram is as follows figure 1 shown. The hot air heating system 1 is composed of five low-temperature zones 8 and high-temperature zones 9 arranged vertically and horizontally, with the low-temperature zone 8 in front and the high-temperature zone 9 behind. The left guide rail 20, the right guide rail 21 and the chain 23 of the conveying system 2 pass through the low temperature zone 8 and the high temperature zone 9 of the hot air heating system 1, and the fixture 3 is placed on the left guide rail 20 and the right guide rail 21 and driven by the chain 23 from the low temperature zone 8 Transfer to high temperature zone 9. The vibration excitation mechanism 4 is placed above the conveying system 2 in the high t...

Embodiment 2

[0056] see Figure 7 , this embodiment provides another solution of the sweeping structure 5 . Its upper part still adopts the same structure as in Embodiment 1, but its lower part is a vertically rotating brush structure, and there are 2 to 10 vertical rotating shafts 56 perpendicular to the feeding direction of the circuit board, and each vertical rotating shaft 56 upper ends are fixed a disk 57, and vertical bristle 58 is arranged on the disk 57, and vertical bristle 58 is also steel wire bristle, and the lower end of each vertical rotating shaft 56 realizes the gear transmission connection with same horizontal transmission shaft 60 by bevel gear set 59 , the vertical bristles 58 sweep the lower surface of the circuit board 15 when the circuit board 15 passes by.

[0057] The invention is a device for vibrating and brushing to disassemble components from a printed circuit board without damage, and is used in recycling and reusing enterprises of waste products in the electr...

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Abstract

The invention discloses hot air heating and vibratory force applying disassembly equipment for waste and used circuit boards, which belongs to the technical field of recycling of waste products. The disassembly equipment comprises a hot air heating system, a conveying system, a clamping device, an excitation mechanism, a sweeping mechanism, a component delivery mesh belt and a waste gas suction port, wherein the air outlet of a hot air box below a high-temperature region of the hot air heating system has a double-layer sieve plate structure, so that solder collecting and hot air heating are realized; the conveying system has a structure which combines a wheel groove with a chain groove; the clamping device is supported by a wheel; frictional resistance on a chain is small; a movable chuckwhich can adjust the position of the clamping device is arranged in the clamping device; clamping can be realized directly without pre-detaching a component at the edge of the circuit board; and the excitation mechanism directly acts on the clamping device through a cam, so that vibration is generated and a very wide vibration frequency range can be achieved. Component disassembly and solder recycling of the circuit board are realized by a hot air heating and vibratory force applying method, requirements on high disassembly efficiency and no damage to the component in a disassembly process are met and the equipment is applied to enterprises for recycling waste products in the electronic industry.

Description

technical field [0001] The invention belongs to the technical field of production, maintenance and waste recovery and reuse of electronic and electrical products, and relates to a dismantling equipment for waste circuit boards which adopts hot air heating and vibration force. Background technique [0002] Most electronic and electrical products contain printed circuit boards (Printed Circuit Board, referred to as PCB). After these products are scrapped, the components on the circuit board inside also have the value of being used as repair spare parts or downgraded and reused. The non-destructive removal of components from the circuit board is a necessary prerequisite for the reuse of components. The currently widely used dismantling method is manual dismantling, which not only pollutes the environment and endangers health, but also cannot guarantee the reusability of disassembled components. So far, there have been a number of patents at home and abroad on the overall dism...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/018B23K3/08B09B3/00
CPCY02W30/82
Inventor 向东龙旦风高浪段广洪张永凯谢宁牟鹏
Owner TSINGHUA UNIV
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