JPH06349655A - Component assembling device and method - Google Patents

Abstract

PURPOSE:To improve the production efficiency of the automated component assembling device and method having bonding step. CONSTITUTION:Within the title component assembling device and method, the bonding surface of a paper sheet 1 is wetted with sprayed water content using a nozzle 30 and then the paper sheet 1 is shifted to drip a bonding agent 7 from another nozzle 8. Next, the paper sheet 1 and a wood piece 2 are pressurized by a robot hand 20 for specific time and then the paper sheet 1 etc., is shifted and stopped by the operation of a motor connected to a feed wheel 4 to be cut off by a sheet cutter 21 so that both component may be coupled with each other within a short time by the bonding agent 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for assembling parts, and more particularly to improvement of automation for shortening a bonding process time.

[0002]

2. Description of the Related Art Recently, an adhesive has been frequently used for connecting parts to each other, and has been adopted in a parts assembling apparatus and method for automatically connecting the parts. A conventional technique will be described with reference to FIGS. In FIG. 3, it is a duct in which two parallel paper sheets 1 are joined at right angles to each other by a plurality of angular wood pieces 2 at equal intervals. The duct is a final product manufactured by the component assembling apparatus, and its function is to be inserted into the transformer coil in order to improve the oil permeability of the cooling oil in the transformer. Several ducts are wound in a coil at a predetermined position between the coils in a sandwich shape.

In FIG. 4, two parallel paper sheets 1 which are the first adherends have reels 3 each having one end rotatable.
It is formed in a roll shape by connecting to the starting end of the winding portion.
The guide roller 6 guides the paper sheet 1 so as to move it obliquely upward, and the feed wheel 4 and the feed roll 5 make a predetermined length horizontal with respect to the wood 2 which is the second adherend, and apply tension. It is configured to add.
The feed wheel 4 is rotatable, its tip is in contact with the paper sheet 1, and when the wood 2 comes directly under the recessed portion having unevenness like a gear, the wood 2 collides with the feed wheel 4. Is to avoid. A motor shaft (not shown) is coupled to the center of the feed wheel 4, and the feed wheel 4 is rotated by the rotation of the motor.

The air control device 15 includes a solenoid valve 1
4 and the air adjusting unit 11, the air pressure is adjusted by the air adjusting unit 11, and the pressure is constantly applied to the inside of the storage tank 10 which is a container having airtightness. The solenoid valve 14 has a spring mechanism at the lower end and mechanically moves the upper and lower ends up and down.
(Not shown), the lower stage in the valve is an OFF mechanism for shutting off air, and the upper stage is an ON mechanism for circulating air. The pinching valve 13 is designed so that a predetermined air pressure is applied by turning on / off the solenoid valve 14, and when the air pressure is applied, the valve is closed,
When the air pressure is released, the valve operates so as to loosen.

The pinching valve 13 has a tube 12 penetrating therethrough for delivering the adhesive agent 7 for instantly adhering the adherends. One end of the tube 12 is provided inside the storage tank 10 storing the adhesive agent 7. The other end is inserted into the bottom portion and is connected to the nozzle 8 for supplying the adhesive, and the valve 7 is opened so that the adhesive 7 in the tube 12 flows out due to the pressure difference with the tip opening of the supply nozzle 8. ing. Nozzles 8 are provided directly above the two paper sheets 1, and one nozzle is provided in total, for a total of two nozzles. Further, the pressing mechanism 20 is a pressing means for moving the wood 2 downward to press the paper sheet 1 and the wood 2, and is constituted by a robot hand (not shown). The sheet cutter 21, which is a blade made of steel having a sharp tip, is for cutting the paper sheet 1, and is configured to be operated by a drive mechanism (not shown) that is vertically movable as indicated by an arrow. ing.

Next, the operation will be described. When the operator presses the start switch of the component assembling apparatus, the paper sheet 1 is rotated by the rotation of the motor connected to the feed wheel 4 so that the feed wheel 4 is also rotated as indicated by the arrow, and the feed roll 5 is also frictionally synchronized as indicated by the arrow. Rotate to. Therefore,
The paper sheets 1 sequentially fed from the supply reel 3 rotate the guide roller 6 and, when moving by a predetermined amount, stop the motor while stopping the motor to stop the paper sheet 1. When the solenoid valve 14 is deenergized and the air pressure is turned off after the stop, the pinching valve 13 is opened to cause the adhesive 7 in the tube 12 to flow out due to the pressure difference with the tip opening of the supply nozzle 8. Therefore, the adhesive 7 is dropped from the supply nozzle 8 onto the upper surface of the paper sheet 1.

Next, when the feed wheel 4 rotates as shown by the arrow by the rotation of the motor connected to the feed wheel 4, the feed roll 5 also rotates synchronously by the friction as shown by the arrow. The paper sheet 1 is moved to the distance A. While stopping the motor, the brake is operated to stop the paper sheet 1. After the adhesive is interposed between the paper sheet 1 and the wood 2, the robot hand 20 presses the paper sheet 1 and the wood 2 for about 5 seconds. Here, the reason for setting it to 5 seconds is that the adhesive strength becomes almost 100% as shown by the curve 102 from the experimental result shown in FIG. Further, the paper sheet 1 is moved by a predetermined length and the brake is operated while stopping the motor to stop the paper sheet 1. After stopping, it is cut by the sheet cutter 21. A predetermined number of pieces of wood 2 are bonded together, and the duct is completed.

However, in the prior art, since the robot hand 20 presses the paper sheet 1 and the wood 2 with the adhesive 7 for about 5 seconds after the adhesive 7 is interposed, it takes time to move to the next step, which leads to production. It was deteriorating.

On the other hand, as a related improvement of the above-mentioned technique, according to JP-A-61-118481, in adhering a head core to a head base, high humidity air is supplied after the adhesive is applied. There is. This is mainly due to the adhesive mechanism of cyano-based instant adhesives, which is a thin film state that accelerates the reaction speed by pressing the adhesive in the form of pseudo spherical drops due to surface tension between the bonding base material and the material to be bonded. In addition, the bonding base material and the material to be bonded are bonded by causing a chemical reaction with the water content. However, since high humidity is applied after the adhesive is applied, the adhesive curing is promoted only around the head base and the head core, and the effect is not sufficient inside. Therefore, it is suitable for adhering small parts as described above, but not suitable for adhering large parts.

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to bond parts to each other in a short time,
The purpose is to improve the productivity of the product so that it can be transferred to the next process in a short time.

Another object of the present invention is to shorten the time for bonding components to each other without damaging the adherend.

Still another object is to make the adhesion smooth by automatically adjusting the moisture without being affected by the ambient humidity when the adherends are joined parts such as paper sheets which are easily dried. To do.

[Means for Solving the Problems]

According to a first aspect of the present invention, there is provided a component assembling apparatus which comprises a water jetting means for jetting water to the first adherend and an adhesive for dropping the adhesive onto the first adherend after the water jetting means operates. And a pressing means for injecting water by the water injecting means onto the second adherend and dropping the adhesive by the adhesive dropping means to press the first and second adherends. It is a thing.

According to a second aspect of the present invention, there is provided a method of assembling a component, wherein water is sprayed onto the first adherend by means of a water spraying means, the adhesive is dripped onto the second adherend, and the water is sprayed and the adhesive is dripped. After that, the first and second adherends are pressed.

In the component assembling apparatus according to the third aspect, the water spraying means is a nozzle for sending out water in the form of spray.

According to a fourth aspect of the present invention, there is provided a component assembling apparatus, wherein the water content adjusting / injecting means capable of automatically adjusting the water content, the humidity detecting means for detecting the humidity in the room of the component assembling apparatus, and the humidity detecting means for detecting the humidity. The water content of the water content adjusting / injecting means is adjusted.

[0016]

According to the component assembling apparatus of the first aspect, the water spraying means sprays water onto the first adherend, and the adhesive dropping means drops the adhesive onto the first adherend. The pressing means works to press and bond the first and second adherends after spraying water and dropping the adhesive by the adhesive dropping means.

According to the component assembling method of the second aspect, the water is jetted to the first adherend and the adhesive is dropped on the second adherent, and the first and second adherends are formed. Press and work to combine.

According to the component assembling apparatus of the third aspect, the nozzle for sending out water in the form of spray sprays the first adherend.

According to the fourth aspect of the present invention, there is provided the component assembling apparatus, wherein the water content adjusting / injecting means can automatically adjust the water content, and the humidity detecting means functions to detect the humidity in the room of the component assembling apparatus.

[0020]

【Example】

Example 1. The invention according to claims 1 to 3 will be described with reference to the drawings. The present invention comprises a water jetting means, an adhesive dropping means, and a pressing means. In addition, in FIG. 1, the same reference numerals as those in the related art indicate the same or corresponding portions. A nozzle 30, which is a water content ejecting unit that ejects water to the adherend, and at the same time is a water content adjusting and ejecting unit that can automatically adjust the water amount, has a mechanism that can automatically adjust the water amount.
The two paper sheets 1 are arranged directly above the two paper sheets 1, and two paper sheets 1 are provided in total. The water storage tank 22 is composed of an airtight container and has a predetermined pressure by the air control device 11.
When B is opened, the water in the tube 23 is configured to flow out due to the pressure difference between the water inside the tube 23 and the tip opening of the nozzle 30.

Next, the operation will be described. First, when the operator activates the component assembling apparatus, the solenoid valve 14
B is turned on and the two nozzles 30 are turned on and the tube 2
The water in 3 is jetted from the tip of the nozzle 30 due to the pressure difference between the water in the nozzle 3 and the tip of the nozzle 30. Here, when the nozzle 30 is used for generating mist, mist-like water is jetted to wet the paper sheet 1. Then, immediately, when the feed wheel 4 rotates as indicated by the arrow by the operation of the motor connected to the feed wheel 4, the paper sheet 1 also rotates in synchronization with the feed roll 5 as indicated by the arrow. Therefore, the paper sheets 1 sequentially sent out from the supply reel 3 are moved by the guide rollers 6, and when a predetermined amount is moved, the brake is operated and the paper sheet 1 is stopped while stopping the motor. When the solenoid valve 14 is energized and turned off after the stop, the pinching valve 13 is opened to open the tube 12
The adhesive 7 inside flows out due to a pressure difference between the adhesive 7 and the tip opening of the supply nozzle 8. Therefore, the ink is dropped from the supply nozzle 8 onto the upper surface of the paper sheet 1.

When the feed wheel 4 rotates as indicated by the arrow in the paper sheet 1 by the operation of the motor connected to the feed wheel 4, the feed roll 5 also rotates in synchronization with the arrow as indicated by the arrow. Therefore, the paper sheets 1 sequentially sent out from the supply reel 3 are moved by the guide rollers 6, and when a predetermined amount is moved, the brake is operated and the paper sheet 1 is stopped while stopping the motor. Paper sheet 1
To the distance of A. After stopping, the robot hand 20 for about 2.5 seconds after interposing the adhesive between the paper sheet 1 and the wood 2.
Press by. Here, the reason for setting it to 2.5 seconds is that the adhesive strength becomes almost 100% as shown by the curve 101 from the experimental result shown in FIG.

Example 2. In the first embodiment, the nozzle 30 is
Although a constant amount of water is always applied, in the present invention, the control valve is adjusted so that the humidity detecting means (not shown) detects the indoor humidity of the component assembling apparatus and the water corresponding to the detected humidity is ejected from the nozzle 30. To do. Therefore, even if the humidity in the room is high, the moisture when the humidity is low is given. Therefore, when the adhesive is dropped, the adhesive reaction is excessively promoted and heat is generated, which may deform the paper sheet 1. There is. On the other hand, if the humidity in the room is high even though the humidity in the room is low, when the adhesive is dropped, the adhesive reaction is delayed and the efficiency of the production process deteriorates. The harmful effect can be eliminated.

[0024]

According to the apparatus and method for assembling parts described in claim 1.2, the parts can be bonded to each other in a short time, and the process can be moved to the next step in a short time, thereby improving the productivity of products. To be

The component assembling apparatus according to the third aspect is effective in shortening the time for adhering the parts together without damaging the adherend.

In the case of joining easily dry parts such as paper sheets, the parts assembling apparatus according to claim 4 has an effect of automatically adjusting the water content and smoothing the adhesion without being affected by the ambient humidity. can get.

[Brief description of drawings]

FIG. 1 is a diagram showing a component assembly apparatus and method according to the present invention.

FIG. 2 is a time curve of adhesive strength.

FIG. 3 is a diagram showing an appearance of a duct.

FIG. 4 is a view showing a conventional parts assembling apparatus and method.

[Explanation of symbols]

 1 Paper Sheet 2 Wood 7 Adhesive 8 Nozzle (Adhesive Dripping Means) 20 Robot Hand (Pressing Means) 30 Nozzles (Moisture Injecting Means, Moisture Control Injecting Means)

Claims (4)

[Claims] 1. A moisture ejecting means for ejecting moisture onto a first adherend, an adhesive dropping means for dropping an adhesive onto the first adherend after the operation of the moisture ejecting means, and a second adherent. After the water is sprayed onto the adhesive body by the water spraying means and the adhesive is dropped by the adhesive dropping means, the first and the second
And a pressing means for pressing the adherend. 2. The first and second adhesives are sprayed onto the first adherend by means of a water spraying means, the adhesive is dropped onto the second adherend, and then the moisture is sprayed and the adhesive is dropped onto the first adherend. A method of assembling a component, which comprises pressing the adherend. 3. The component assembling apparatus according to claim 1, wherein the water jetting means is a nozzle for sending out water in a spray form. 4. A water content adjusting / injecting means capable of automatically adjusting the water content, a humidity detecting means for detecting a humidity in a component assembly apparatus chamber, and a water content in the water content adjusting / injecting means according to a detection value of the humidity detecting means. A parts assembling apparatus characterized by adjusting.