JP2016203464A - Transfer coater and transfer coating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an excess of a liquid from dripping out of a stamp without decreasing an operation speed.SOLUTION: A transfer coater comprises: an oil sump 1; an oil cutting pin 12 erected in the oil sump 1 by thrusting from an oil surface; a mounting base where a workpiece having a hole is mounted; a stamp 4 having a through hole 44 through which the oil cutting pin 12 can be inserted; a movement part (mounting base movement part, stamp movement part) that can move the stamp 4 relatively to the oil sump 1 and the mounting base, respectively; and a control part that controls the movement part. The control part has an immersion control part that immerses the stamp 4 in oil 11 in the oil sump 1 while inserting the oil cutting pin 12 into the through hole 44, a pull-up control part that pulls up the stamp 4 from the oil 11 by extracting the through hole 44 along the oil cutting pin 12, and a transfer coating control part that performs transfer coating the oil 11 to the hole by inserting the stamp 4 into the hole of the workpiece mounted on the mounting base 2.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a transfer coating apparatus and a transfer coating method for preventing excess liquid from dripping from a stamp.

In the limit switch manufacturing process, oil may be applied to the bearing portion of the housing. In this case, conventionally, oil is put into a syringe and the oil is applied to the inner surface of the bearing portion by a human hand.
On the other hand, there is also an apparatus that employs a transfer coating method using a stamp. In the transfer coating using the stamp, first, the stamp is dipped in oil in an oil reservoir so that the stamp retains oil. Thereafter, the oil can be transferred and applied to the bearing portion by inserting the stamp holding the oil into the bearing portion of the housing.

Japanese Patent Laid-Open No. 10-039523 Japanese Patent Laid-Open No. 08-091488

However, in a transfer coating apparatus using a stamp, there is a problem that when the stamp is dipped in oil in an oil reservoir and pulled up, excess oil drips from the stamp. For this reason, in the transfer application of oil to the bearing portion, there is a possibility that the oil may sag on unnecessary portions of the housing.
On the other hand, after dipping in a liquid, a technique is also known that prevents the excess liquid from dripping from the dipped member by pulling up the dipped member at a reduced speed (see, for example, Patent Documents 1 and 2). ). However, in this method, since it is necessary to temporarily reduce the operation speed, the work takes time and there is a problem that it is not suitable for mass production.

  The present invention has been made to solve the above-described problems, and provides a transfer coating apparatus and a transfer coating method capable of preventing the excess liquid from dripping from the stamp without reducing the operation speed. The purpose is to do.

  The transfer coating apparatus according to the present invention includes a container containing a liquid, a pin standing in the container and protruding from the liquid surface in the container, a mounting table on which a work having a hole is mounted, and the pin can be inserted A stamp having a through hole, a moving part capable of moving the stamp relative to the container and the mounting table, and a control part for controlling the moving part. The control part inserts a pin into the through hole. While controlling the immersion control unit to immerse the stamp in the liquid in the container, after the control by the immersion control unit, after pulling the through hole along the pin, pulling up the stamp from the liquid, after the control by the pulling control unit The transfer application control unit for transferring and applying the liquid to the hole by inserting the stamp into the hole of the work placed on the mounting table.

  Further, the transfer coating method according to the present invention includes a container containing a liquid, a pin standing in the container and protruding from a liquid surface in the container, a mounting table on which a work having a hole is mounted, and a pin A transfer coating method using a transfer coating apparatus including a stamp having a through-hole that can be inserted, a moving unit that can move the stamp relative to the container and the mounting table, and a control unit that controls the moving unit. The control unit includes an immersion control step in which the immersion control unit inserts the pin into the through hole while the stamp is immersed in the liquid in the container, and the pulling control unit uses the through hole as a pin after the control by the immersion control unit. Pulling up the stamp from the liquid by pulling out along, and the transfer application control unit, after the control by the pulling control unit, insert the stamp into the hole of the work placed on the mounting table, into the hole liquid Those having a transfer coating control step of transferring coating.

  According to the present invention, since it is configured as described above, it is possible to prevent excess liquid from dripping from the stamp without reducing the operation speed.

It is a figure which shows the structural example of the transfer coating apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the structural example of the stamp which concerns on Embodiment 1 of this invention. It is a flowchart which shows the operation example of the transfer coating apparatus which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows pulling up of the stamp which concerns on Embodiment 1 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration example of a transfer coating apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 1, the transfer coating apparatus includes an oil reservoir (container) 1, a mounting table 2, a mounting table moving unit 3, a stamp 4, a stamp holding unit 5, a stamp moving unit 6, and a control unit 7. In the following description, it is assumed that the housing 100 having the bearing portion 1001 to which the transfer and application of the oil 11 is performed is used as the work having the hole to which the transfer and application of the liquid is performed.

The oil sump 1 contains oil 11.
An oil draining pin (pin) 12 is erected in the oil sump 1. The oil draining pin 12 protrudes from the oil surface in the oil sump 1 (see FIG. 4).

The mounting table 2 is a table on which a housing 100 having a bearing portion 1001 at a predetermined position is mounted.
The mounting table moving unit 3 can move the mounting table 2. In the example of FIG. 1, the mounting table moving unit 3 is configured by an actuator that can move the mounting table 2 in the left-right direction.

  The stamp 4 is immersed in the oil 11 accommodated in the oil sump 1, and after the immersion, an insertion portion 41 described later is inserted into the bearing portion 1001 of the housing 100 mounted on the mounting table 2 in a non-contact manner. Is. The stamp 4 performs transfer application of the oil 11 to the bearing portion 1001. The configuration of this stamp 4 will be described later.

The stamp holding unit 5 holds the stamp 4.
The stamp moving unit 6 can move the stamp 4 via the stamp holding unit 5. In the example of FIG. 1, the stamp moving unit 6 is configured by an actuator that enables the stamp 4 to move in the height direction.
The mounting table moving unit 3 and the stamp moving unit 6 constitute a moving unit that can move the stamp 4 relative to the oil sump 1 and the mounting table 2.

As shown in FIG. 1, the control unit 7 includes an immersion control unit 71, a pulling control unit 72, and a transfer coating control unit 73. The control unit 7 is controlled by a PLC (programmable controller) or the like.

The immersion control unit 71 moves the stamp 4 through the stamp moving unit 6 and immerses the stamp 4 in the oil 11 in the oil reservoir 1 while inserting the oil draining pin 12 into a through hole 44 described later of the stamp 4. It is.
After being controlled by the immersion control unit 71, the pulling control unit 72 moves the stamp 4 via the stamp moving unit 6, and pulls the through hole 44 along the oil draining pin 12 to pull the stamp 4 from the oil 11. Is.
After being controlled by the pulling control unit 72, the transfer application control unit 73 moves the mounting table 2 and the stamp 4 via the mounting table moving unit 3 and the stamp moving unit 6, and mounts the insertion unit 41 of the stamp 4 on the mounting table 2. The oil 11 is transferred and applied to the bearing portion 1001 by being inserted into the bearing portion 1001 of the housing 100 placed in a non-contact manner.

Next, a configuration example of the stamp 4 will be described with reference to FIG.
As shown in FIG. 2, the stamp 4 is provided with an insertion portion 41 at the tip of the shaft. The insertion portion 41 is thinner than the inner diameter of the bearing portion 1001 and has an outer shape capable of transferring and applying the oil 11 to the bearing portion 1001 by being inserted into the bearing portion 1001 in a non-contact manner while holding the oil 11. For example, it is comprised from resin members, such as a polyacetal. At this time, the gap between the bearing portion 1001 and the insertion portion 41 inserted into the bearing portion 1001 is designed to be about several millimeters of commas. The insertion portion 41 is a dedicated component whose shape and size are designed according to the shape and size of the bearing portion 1001. Further, the insertion portion 41 may be inserted about half of the depth of the bearing portion 1001, and the length of the insertion portion 41 may be shorter than the depth of the bearing portion 1001. In addition, parts other than the insertion part 41 of the stamp 4 are comprised, for example with metal members, such as stainless steel, and the stamp 4 is comprised by inserting the resin-made insertion parts 41 in this metal member.

Further, a collar portion 42 is provided on the shaft of the stamp 4 above the insertion portion 41. The collar portion 42 has an outer shape that is thicker than the inner diameter of the bearing portion 1001.
In addition, the flange portion 42 is provided with a groove portion 43. The groove 43 is provided continuously with the insertion portion 41. The groove 43 holds the oil 11 together with the insertion portion 41 by being immersed in the oil 11 in the oil reservoir 1. The amount of oil 11 retained by the groove 43 is designed to be about several tens of mm ³ . It should be noted that by adjusting the space (width, depth, etc.) of the groove 43, the transfer application amount of the oil 11 to the bearing 1001 can be controlled.

  The stamp 4 is provided with a through hole 44. In the example of FIG. 2, the case where the through hole 44 is provided in the shaft center is shown, but it may be shifted from the shaft center. The through hole 44 is configured to have a dimension that allows the oil draining pin 12 erected in the oil reservoir 1 to be inserted.

Next, an example of the operation of the transfer coating apparatus configured as described above will be described. In addition, the housing 100 to which the transfer coating of the oil 11 is performed is placed at a predetermined position of the mounting table 2.
In the operation example of the transfer coating apparatus, as shown in FIG. 3, first, the immersion control unit 71 lowers the stamp 4 through the stamp moving unit 6 and inserts the oil draining pin 12 into the through hole 44. Is immersed in the oil 11 in the oil reservoir 1 (step ST1, immersion control step). Thereby, the insertion part 41 and the collar part 42 of the stamp 4 are immersed in the oil 11 in the oil reservoir 1.

  Then, after immersing the stamp 4 in the oil 11 for a certain time (about several seconds), the pulling control unit 72 raises the stamp 4 through the stamp moving unit 6 and pulls the through hole 44 along the oil removing pin 12. By pulling out, the stamp 4 is pulled up from the oil 11 (step ST2, pulling up control step). Thereby, the oil 11 is held by the surface tension in the groove portion 43 and the insertion portion 41 of the stamp 4.

  At this time, as shown in FIG. 4, the stamp 4 is pulled up along the oil draining pin 12 protruding from the oil surface in the oil reservoir 1, so that excess oil 11 attached to the stamp 4 is The oil flows through the cutting pin 12 and flows into the oil sump 1. Thereby, it is possible to prevent excess oil 11 from dripping from the stamp 4. Further, when the stamp 4 is pulled up from the oil 11, it is not necessary to reduce the operation speed.

  Next, the transfer application control unit 73 moves the mounting table 2 to the stamp 4 side via the mounting table moving unit 3, lowers the stamp 4 via the stamp moving unit 6, and moves the insertion unit 41 of the stamp 4. The oil 11 is transferred and applied to the bearing 1001 by being inserted into the bearing 1001 of the housing 100 mounted on the mounting table 2 (step ST3, transfer application control step). Here, when the stamp 4 shown in FIG. 2 is used, the insertion portion 41 is inserted into the bearing portion 1001 in a non-contact manner. As a result, the oil 11 held in the groove portion 43 and the insertion portion 41 of the stamp 4 touches the bearing portion 1001, and the oil 11 flows into the bearing portion 1001 and is transferred by surface tension.

Then, after performing transfer coating for a certain time (about several seconds), the mounting table 2 and the stamp 4 are returned to their original positions via the mounting table moving unit 3 and the stamp moving unit 6 (step ST4). Through the above steps, application of the oil 11 to the bearing portion 1001 of the housing 100 is completed.
Then, after the next housing 100 is mounted on the mounting table 2, the same operation as described above is repeated.

  As described above, according to the first embodiment, the oil draining pin 12 protruding from the oil surface is raised in the oil reservoir 1, the through hole 44 into which the oil draining pin 12 can be inserted is provided in the stamp 4, Since the stamp 4 is configured to be immersed and pulled into the oil 11 in the oil sump 1 while inserting a pin through the hole 44, it is possible to prevent excess oil 11 from dripping from the stamp 4 without reducing the operation speed. Can be prevented.

  In the above description, the stamp moving unit 6 that can move the stamp 4 in the height direction and the mounting table moving unit 3 that can move the mounting table 2 in the left-right direction are used as the moving unit. However, the present invention is not limited to this, and the moving unit may be configured to be able to move the stamp 4 relative to the oil sump 1 and the mounting table 2. For example, the mounting table 2 may not be moved, but only the stamp 4 may be moved in the height direction and the left-right direction to move to the oil sump 1 and the mounting table 2.

In the above description, the case where the oil 11 is transferred and applied has been described. However, the present invention is not limited to this, and the present invention can be similarly applied to the case where other liquid is transferred and applied.
Moreover, in the above, the case where the housing 100 which has the bearing part 1001 was used as a workpiece | work which has a hole was shown. However, the present invention is not limited to this, and the present invention can be similarly applied to workpieces having other holes.

  In the above description, the stamp 4 has a shape as shown in FIG. 2, but is not limited thereto, and any stamp 4 having a through hole 44 through which the oil draining pin 12 can be inserted may be used. For example, instead of the stamp 4 inserted in a liquid transfer application target hole without contact, a stamp 4 that directly contacts the hole and performs transfer application may be used.

  Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

1 Oil sump (container)
2 mounting table 3 mounting table moving unit 4 stamp 5 stamp holding unit 6 stamp moving unit 7 control unit 11 oil 12 oil removing pin (pin)
41 Insertion part 42 Collar part 43 Groove part 44 Through-hole 71 Immersion control part 72 Pull-up control part 73 Transfer application control part 100 Housing 1001 Bearing part

Claims (2)

A container containing a liquid;
A pin standing in the container and protruding from the liquid level in the container;
A mounting table on which a workpiece having a hole is mounted;
A stamp having a through-hole through which the pin can be inserted;
A moving part capable of moving the stamp relative to the container and the mounting table, respectively;
A control unit for controlling the moving unit,
The controller is
An immersion control unit for immersing the stamp in the liquid in the container while inserting the pin into the through hole;
After the control by the immersion control unit, a pulling control unit that pulls the stamp from the liquid by pulling the through hole along the pin;
After the control by the pulling control unit, the transfer application control unit for transferring and applying the liquid to the hole by inserting the stamp into the hole of the work placed on the mounting table. Transfer coating device. A container containing a liquid;
A pin standing in the container and protruding from the liquid level in the container;
A mounting table on which a workpiece having a hole is mounted;
A stamp having a through-hole through which the pin can be inserted;
A moving part capable of moving the stamp relative to the container and the mounting table, respectively;
A transfer coating method by a transfer coating apparatus comprising a control unit for controlling the moving unit,
The controller is
An immersion control step in which the immersion control unit immerses the stamp in the liquid in the container while inserting the pin into the through hole;
The pulling control unit pulls up the stamp from the liquid by pulling out the through hole along the pin after control by the immersion control unit, and
A transfer application control step for transferring and applying the liquid to the hole by the transfer application control unit inserting the stamp into the hole of the work placed on the mounting table after the control by the pulling control unit; A transfer coating method characterized by comprising:

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