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Mechanism capable of performing high/low speed switching through overrun clutches for reflow furnace

A technology of overrunning clutches and reflow ovens, which is applied to welding equipment, auxiliary devices, metal processing equipment, etc., can solve the problems of high prices, achieve the effect of improving processing capacity and saving costs

Active Publication Date: 2014-12-03
上海朗仕电子设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Controlling AC motors with inverters is expensive

Method used

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  • Mechanism capable of performing high/low speed switching through overrun clutches for reflow furnace
  • Mechanism capable of performing high/low speed switching through overrun clutches for reflow furnace

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Embodiment

[0017] Such as Figure 1~2 As shown, a mechanism for high and low speed switching through an overrunning clutch for a reflow oven, including a frame 1, a mesh belt shaft 2 and a drive shaft 7 arranged on the frame 1, and the two ends of the mesh belt shaft 2 pass through flange bearings 6 Connect the frame 1, the two ends of the drive shaft 7 are respectively connected to the frame 1 through flange bearings and the first bearing mounting plate 5 and the second bearing mounting plate 16, and the mesh belt sprocket 3 and the drive shaft are arranged on the mesh belt shaft 2 7 is provided with two overrunning clutches in opposite directions: the first overrunning clutch 4A and the second overrunning clutch 4B, and the drive shaft 7 is also provided with a drive sprocket 10, which is connected to the mesh belt sprocket 3 through a chain, so The frame 1 described above is also provided with a high-speed motor 9 and a low-speed motor 13 in opposite directions. The high-speed motor 9...

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Abstract

The invention relates to a mechanism capable of performing high / low speed switching through overrun clutches for a reflow furnace. The mechanism comprises a rack (1), a net belt shaft (2) and a drive shaft (7), wherein the net belt shaft (2) and the drive shaft (7) are arranged on the rack (1); net belt chain wheels (3) are arranged on the net belt shaft (2); two overrun clutches which are opposite in direction, namely a first overrun clutch (4A) and a second overrun clutch (4B), are arranged on the drive shaft (7); drive chain wheels (10) are also arranged on the drive shaft (7); a high-speed motor (9) and a low-speed motor (13) which are opposite in direction are also arranged on the rack (1); and an overload protection clutch (14) is arranged at the end of the low-speed motor (13). Compared with the prior art, the mechanism has the advantages of compact structure, stability and reliability in working, capability of batch processing and the like.

Description

technical field [0001] The invention relates to components for reflow soldering furnaces, in particular to a mechanism for switching between high and low speeds through an overrunning clutch for reflow soldering furnaces. Background technique [0002] Reflow oven is a kind of welding equipment used in SMT industry. It can provide an automatic and stable heating environment, so that the solder paste in the furnace is heated and melted, so that the pre-mounted electrical components on the PCB and the PCB board are reliably combined through the solder alloy. [0003] The PCB board is transported through a mesh belt (or chain) and driven by a DC or AC motor. The speed range of the normal DC motor itself is generally less than 5. If the customer requires the variable speed range of the mesh belt (or chain) to exceed 5, which is convenient for welding different PCB boards, then only the AC special variable speed motor can be used, and the speed can be adjusted by the frequency c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K3/08B23K1/008
Inventor 詹姆斯·内维尔大卫·海乐初剑英
Owner 上海朗仕电子设备有限公司