JPS63213403A - Method and apparatus for removing coating of magnet wire - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for removing coatings such as ends for electrical connection of so-called magnet wires coated with an insulating coating with formal or ester, and a method thereof. All related to elaborate equipment.

[Conventional technology]

Conventional methods for removing coatings from formal copper wires, polyester copper wires, etc. from electronic components include immersing the part of the magnet wire from which the coating has been removed in a solvent, pulling it up, and leaving it for a certain period of time to remove the coating. This was done manually by waiting for it to dissolve and swell with the solvent and then wiping it off with sandbags, glue, etc.

[Problem that the invention seeks to solve]

Removing the coating on magnet wire using the conventional method described above has problems such as uneven peeling of the coating and the long time it takes to wait for it to swell after being immersed in a solvent. Ta. Furthermore, if automation or mechanization is used to increase work efficiency when removing the coating on magnet wires, which are the terminals of electronic components, using a solvent, the chemical action of the solvent may be enhanced to strengthen the peeling phenomenon and shorten the peeling process. It is necessary to process it so that there is no uneven peeling over time, but 2.If the temperature of the solvent is increased to hasten the reaction, the evaporation and aging of the solvent will be accelerated.30
There was a problem that the temperature could not be raised above ℃. Therefore, it is an object of the present invention to provide a method and an apparatus for eliminating uneven peeling of the part of a magnet wire from which the coating is peeled, and also allowing the peeling to be performed in a short time, thereby making it possible to easily mechanize and automate the peeling process. purpose.

[Means for solving problems]

In the method according to the present invention, the coating portion of the magnet wire to be peeled is heated in advance with a heater, etc., and the coating is immersed in Kl, the material that makes up the entire coating, and pulled up in a short period of time, thereby removing the solvent. To make a solvent attached to a coating react with the coating at high temperature without dissipating the heat of the coating part into a solution, and to wash the swollen coating by brushing in a diluted solution of the solvent.

Furthermore, as a device for implementing this peeling method, a plurality of holders are attached to set the workpiece on a conveyor such as a chain that moves after forming the entire loop, and an electronic component having a coating portion to be peeled is placed along the conveyor. a first station for setting the holder, a second station for heating the coating by rotating the holder so that it passes near the heater, a holder for filling the tank with the heated coating and immersing it in the medicine. a third station in which the coating is rotated and pulled out of the liquid; and a fourth station in which the coating is then removed by brushing the entire coating in a cleaning solution containing a diluted solution of the solvent. It consists of:

[Effect]

In the method according to the present invention, the peeled part of the wire is heated in advance before being immersed in the solvent, and furthermore, it is immersed in the solvent for only a short time and then pulled up immediately, so that the heat of the coated part is not dissipated into the solvent and the coated part is not dissipated into the solvent. This increases the temperature of only the adhered solvent, which promotes peeling of the coating due to enhanced reaction, and also increases the temperature of the solvent in the bath, making it difficult for evaporation and aging to proceed. After the film is swollen by the bath additive,
Brushing in a diluted solvent prevents copper corrosion.

The following is an example. Figure 1 shows an example of an apparatus in which the method of the present invention is applied to peeling off a ring coil equipped with a terminal having a coating to be peeled off at both ends as shown in Figure 2. It is. In this schematic diagram, 1 is a conveyor consisting of a chain driven in a loop shape.

Always moving at a constant speed. 2 is a holder provided on the chain, and a ring coil 3 is set on the holder at the first station A. 4 indicates a terminal extending to one side, and 5 indicates a terminal extending to the other side.

Reference numeral 6 indicates a heater provided at the second station B, and in order to heat the terminal 4, the holder is displaced by known means and the terminal passes near the heater, during which the coated portion is heated to a predetermined temperature. It is formed so that 7 is a solvent bath containing a solvent 9; 8 is a known means for rotating the holder by a predetermined angle and immersing only the coated portion of the terminal 4 in the solvent 9; as a whole, the third station is constituted; There is. Terminal 4 changes to 80 functions as conveyor 1 moves! 7 It is pulled up from the solvent and left in the atmosphere until it reaches the fourth station D. During this time, the heated solvent adhering to the terminal swells the coating on the terminal. Reference numeral 10 denotes a liquid tank completely filled with a cleaning liquid 11 containing a diluted solvent, in which the terminal 4 is immersed by known means, and the coating is peeled off and cleaned by rotation of the brush 13. B' is the fifth station, which corresponds to station B of the dust tube 2, and is now applying force to heat the terminal 5. Similarly, the sixth station C' corresponds to the third station C, D' corresponds to the fourth station D and forms the seventh station', and in the eighth station E, terminals 4 and 5 The ring coil 3 from which the coating has been peeled off is discharged.

〔effect〕

Since the present invention is configured as described above, the coating portion of the magnet wire is automatically heated in advance and immersed in a solvent for a short time without manual work.

Since the temperature of only the phosphor solvent attached to the coating is increased, the coating is strongly swelled.

This prevents the temperature of the solvent in the solvent bath from rising, causing it to evaporate.

Aging can be delayed. Furthermore, since the cleaning solution contains a diluent, it is possible to prevent the copper wire from being corroded by the solvent when the entire coating is removed by brushing.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing one embodiment of the apparatus according to the present invention. FIG. 2 is a side view of a ring coil fully processed by the apparatus shown in FIG. 1. In the figure, 1... Conveyor, 2... Holder, 6... Heater, 7... Solvent tank, 13... Brush, A...
・First station, B...Second station, C・
...3rd station, D...4th station. , Ni ＼ Agent (7783) Patent Attorney Noriyasu Ikeda ″>.・41.No, -'17

Claims (1)

[Scope of Claims] 1. Heat the peeled part of a magnet wire having a coating, immerse the heated peeled part in a solvent used at room temperature, pull up the peeled part, and leave it for a certain period of time. A method for peeling off a coating on a magnet wire, characterized in that the coating is swollen in a dilute solution of the solvent, and the coating is removed from the wire by brushing the peeling portion while diluting the solvent. 2. The method for removing a film according to claim 1, wherein the immersion in the solvent is for 5 to 6 seconds. 3. A conveyor that moves at a constant speed in a loop, a plurality of holders attached to the conveyor, a first station for setting wires in the holders, and a first station provided along the conveyor, which rotates the holders and sets the wires in the holders. a second station equipped with a device for heating the heated wire coating removal section by bringing it close to a heater; and a third station equipped with a device and a solvent bath for immersing the heated wire coating removal section in a solvent for a predetermined period of time. and a fourth station equipped with a device that removes the coating by brushing the coated part of the wire pulled up from the solvent bath in a cleaning solution containing a diluted solution of the solvent after a certain period of time. A magnet wire coating stripping device featuring: 4. The coating peeling device according to claim 3, wherein the conveyor is composed of a chain.