JPH0333043Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a drying device for cylindrical electronic components such as fixed film resistors, diodes, and capacitors.

BACKGROUND ART Recently, so-called leadless cylindrical fixed film resistors, diodes, capacitors, etc. have been used. For example, in the case of a fixed film resistor, in the manufacturing process, as shown in FIG. 9A, a resistive element R1, in which caps R2, which are magnetic parts, are fitted on both sides of an insulator R1, is connected to a resistive element R1, as shown in FIG. 9B. A coating film r3 is formed. Next, as shown in FIG. 9C, a plurality of color codes r4 are applied to the outer periphery of the coating film r3, markings (seals), etc. are applied, and then the resistor R is manufactured by drying. can.

Conventionally, a conveying device for the resistive element R1 used in this manufacturing process has been used to convey the resistive element R1 onto a flexible endless conveying body 101 as shown in FIGS. 10 to 12.
1 insertion holes 102 are arranged in a row, and the resistance element R1 is inserted into the lower part of the transfer side of the carrier 101.
A rail 103 is provided to guide the movement of the outer end of the cap r2 while it is positioned in the insertion hole 102 of the cap r2, and the conveyor 101 is moved by a reversing drive device.

Then, the transport body 101 is caused to travel by the drive device, and the insertion hole 1 is opened by the travel of this transport body 102.
The resistor R1 inserted into the guide rail 10
The paper is conveyed while being rolled on the support section 104 of No. 3.

While the resistor element R1 is being conveyed by the conveying device, the coating film r applied to the resistor element R1 is
3 or color code r4.

Problems to be Solved by the Invention However, in the conventional configuration as described above, the guide rail 103 has a cap r
Since the outer end portions of the guide rails 1 and 2 are supported, high machining accuracy is required for the conveyor 101 and the guide rails 103, which makes them expensive. Of course, if this machining accuracy is poor, the conveyor 101 and guide rail 103 may be damaged due to distortion due to heat.
If any deviation occurs, there is a risk that the resistor element R1 may fall. When the resistor element R1 falls during the painting process, the paint adheres to the guide rail 103,
Thereafter, this paint adheres to both ends of the resistor element R1 that is successively conveyed, resulting in all of the resistor elements being defective, which is uneconomical. For this reason, the conveyance state must be constantly monitored, which has been an obstacle to labor saving. In particular, it is extremely difficult to transport and dry small resistors and the like.

Therefore, the present invention is designed to rotate the so-called leadless cylindrical electronic component as described above during drying, thereby making it possible to smoothly dry the cylindrical electronic component with a simple structure and without requiring high processing precision. The cylindrical electronic components can be easily and reliably transported and dried, thereby eliminating contamination of the cylindrical electronic components, improving economic efficiency, and saving labor. The present invention aims to provide a drying device for electronic parts.

Means for Solving the Problems The technical means of the present invention for solving the above problems is that a cylindrical electronic component having magnetic parts on both sides can be inserted, and both ends of the cylindrical electronic component can be inserted at the bottom. an endless conveyor body configured to be able to travel in reverse, a guide member that guides the travel of the conveyor body, and a reversal drive device that causes the conveyor body to travel; a linear suction/rotation member that attracts the magnetic part of the cylindrical electronic component transported by the traveling of the transport body and floats the cylindrical electronic component above the support part within the insertion hole of the transport body; The apparatus includes a cover provided to cover the cylindrical electronic component adsorbed on the rotating member, and a drying means provided inside the cover to dry the cylindrical electronic component.

Effects The effects of the above technical means are as follows.
The transport body is driven by a drive device to transport a cylindrical electronic component that is inserted into an insertion hole of the transport body and whose both ends are supported on support parts in the insertion hole. During this transportation, the cylindrical electronic component is attracted by the suction rotation member and floated from the support part, and the cylindrical electronic component thus attracted is pushed by the hole wall of the insertion hole and rolls in the suction state. The coating film or color code on the outer periphery is dried by the drying means. Therefore, the cylindrical electronic component can be smoothly and reliably transported and dried without falling.

Example Hereinafter, an example in which the drying apparatus of the present invention is used to dry a coating film of a fixed film resistor (hereinafter simply referred to as a resistor) will be described with reference to the drawings.

As shown in FIGS. 1 to 8, the conveyor 1 is composed of a plurality of conveyor units 2 formed to have appropriate lengths, which are combined in an endless manner. The carrier unit 2 is preferably made of stainless steel, which is non-magnetic and has excellent heat resistance, wear resistance, workability, impact strength, and economic efficiency.
In addition, ceramic or the like can also be used. In each carrier unit 2, side plates 4 and 5 are connected to both longitudinal edges of a bottom plate 3, and one side plate 4 is connected to the other side plate 5.
A vertically elongated connecting hole 6 is formed in the upper center of the higher side plate 4 . A resistive element R1 is provided at the longitudinal center of the bottom plate 3 of the carrier unit 2.
The insertion holes 7 are arranged in rows at equal intervals. Each insertion hole 7 has both sides located in the width direction of the carrier unit 2, that is, both sides of the side plates 4 and 5, into which the outer end of the cap r2 of the resistor element R1 can be inserted with a slight margin. It is formed to be narrow as shown in FIG. The width of each insertion hole 7 is formed to be slightly wider than the length of the resistor element R1. Support portions 8 are provided protruding from the bottom portions of both sides of each insertion hole 7 in the width direction to support both side portions of the resistor element R1, that is, the outer end portions of the cap r2. As is clear from FIGS. 4 to 6, each carrier unit 2 is detachable and rotatable at predetermined intervals between a pair of endless chains 9 using its connecting holes 6, and They are connected so that they can move up and down relatively. That is, attachments 11 are attached perpendicularly to links 10 of the chain 9 at predetermined intervals, a shaft 12 is fixed to the attachments 11 with screws 13, etc., and the small diameter portion 12a of this shaft 12 is used for connecting the carrier unit 2. It is inserted into the hole 6, and a retaining member 14 such as an E-ring is engaged with a groove at the protruding end thereof to prevent the retaining member from coming off. In this way, the conveyor units 2 are connected by the chain 9, and the conveyor holes 7 are arranged in a row at a predetermined interval, thereby forming an endless conveyor 1 capable of reversing.

The conveying body 1 and the chain 9 connecting the conveying body 1 are supported so as to be able to run in reverse, for example as shown in FIG. 1 or as shown in FIG. 2. In the example shown in FIG. 1, the pins 15 connecting the links 10 of the chain 9 are oriented vertically (see FIGS. 5 and 7), and the drive is supported by vertical shafts 17, 18 on the frame 16. Sprocket 19 and driven sprocket 20
It is hung on. Axis 1 of drive sprocket 19
7 is a motor attached to the pedestal 16 (not shown)
A driven sprocket 20 is supported so as to be movable in a direction opposite to the driving sprocket 19, and the tension of the chain 9 and the conveying body 1 can be adjusted by moving the driven sprocket 20. By driving the motor, the sprocket 19 is rotated, and the chain 9 and the conveying body 1 can be reversed in the direction of the arrow. In the example shown in FIG. 2, a chain 9 is attached to a driving sprocket 19 and driven sprockets 20, 21, and 22, and the other construction is the same as that shown in FIG. 1 above.

The example shown in FIG. 1 and the example shown in FIG. 2 may be selected depending on the installation conditions and the number of steps. In the example shown in FIG. 1, the supply step 23, the preheating step 2
4. Undercoating process 25, drying process 26, top coating process 27, drying process 28, color coating process 2
9 and a drying step 30. In the example shown in FIG. 2, the material passes through a supply process 23, a coating process 30, a drying process 31, a color coating process 32, a drying process 33, and the like.

A metal guide rail 35 is provided on the pedestal 16 and located below the carrier 1 and the chain 9.
The guide rail 35 is formed by connecting units of a desired length, and is attached to the pedestal 16 so as to allow each unit to expand and contract due to heat during the drying process. As is clear from FIGS. 4 to 8, the guide rail 35 has a groove 36 for running the chain on its inner side, and a groove 37 for running the conveyor in the center thereof. The chain 9 is movably inserted into the groove 36, and the lower part of the carrier 1 is movably inserted into the groove 37.

The resistance element R1 inserted into the insertion hole 7 of the carrier 1 is transported by the traveling of the carrier 1 with the outer end of the cap r2 supported on the support part 8, and during this transportation, The coating film r3 formed by the coating process is dried. As shown in FIGS. 7 and 8, a linear suction rotation member 38 is provided on the upper part of the carrier 1. As shown in FIGS. This suction rotation member 3
8 is composed of a frame 39 and a magnet 40. The frame body 39 is made of a non-magnetic material, and both ends of a pair of longitudinal side plates 41 along the traveling direction of the conveyor 1 are connected by a connecting part 42 (one is not shown), and the inner surface of the side plates 41 is formed from the lower part. They are inclined so that the distance between them gradually widens as they reach the upper end. A magnet 40 is embedded in the lower surface of each side plate 41 along the longitudinal direction. A support portion 43 is provided to protrude horizontally from one side plate 41 of the frame body 39,
This support portion 43 is attached to a column 44 erected on the guide rail 35. In this state, the magnet 40 attracts the cap r2 of the resistive element R1 inserted into the insertion hole 7 of the carrier 1, so that the resistive element R1 can be floated above the support part 8 within the insertion hole 7. It is located. Guide rail 35
Elongated holes 35a and 16a are formed in the pedestal 16 below the suction rotation member 38.
On the upper surface of the pedestal 16 are a guide rail 35, a chain 9, and a suction rotation member 38, that is, a suction rotation member 38.
An upper cover 45 having a heat insulating structure is attached to cover the resistive element R1 that has been attracted to the suction member 38, and a lower cover 45 having a heat insulating structure is attached to the lower surface of the pedestal 16 to cover the resistive element R1 that has been attracted to the suction rotation member 38. A cover 46 is attached. Inside each cover 45, 46, there is a space between the side plate 41 of the suction rotation member 38 and a mount 1.
Sheathed heaters 47 and 48 are provided as drying means for drying the coating film r3 on the outer periphery of the resistor element R1 through the elongated holes 16a and 35a of the guide rail 35.

Next, the operation of the above embodiment will be explained. The carrier 1 is run as described above, and during the run, the resistor elements R1 are sequentially supplied to the insertion holes 7 of the carrier 1 by a supply device (not shown). Each resistor element R
The outer end of the cap r2 of the cap 1 is supported on a support portion 8 within the insertion hole 7. The resistance element R1 is transported as the transport body 1 travels, and is subjected to the painting process 25,
30 (see FIGS. 1 and 2), etc., to form a coating film r3. The coated resistor element R1 is then conveyed, and during this conveyance, the cap r2 of the resistor element R1 is attracted by the magnetic force of the magnet 40 of the attraction rotation member 38, and the resistor element R1 is attached to the support part 8 in the insertion hole 7. More floating. The resistance element R1 attracted to the magnet 40 of the attraction rotation member 38 is pushed by the hole wall of the insertion hole 7 and rolls on the attraction rotation member 38, and during this time, the resistance element R1 is attracted by the sheathed heaters 47 and 48. The coating film r3 formed on the outer periphery of is dried. After drying, the resistor element R1 is a magnet 40.
When it is released from the magnetic force, it falls onto the support part 8 of the insertion hole 7, and is transported to the next step, or is ejected from the insertion hole 7 by the ejection means.

In the above embodiment, the conveying body 1 is made to run inverted in a horizontal plane, but the pin 15 of the chain 9 is oriented horizontally and hung on the sprocket, so that the lower part of the chain 9 and the conveying body 1 on the conveying side is A guide rail 35 may be provided to dry the resistor element R1 on the conveyance side. Further, the magnet 40 of the attracting and rotating member 38 may be configured not to come into direct contact with the resistive element R1. Further, in the above embodiment, the sheathed heaters 47 and 48, which are thermal drying methods, are used as means for drying the resistor element R1. A combination of drying methods can also be used. Furthermore, only one of the upper and lower drying means may be used.

Effects of the Invention As is clear from the above explanation, according to the present invention, both sides of the cylindrical electronic component are supported by the support portions provided in the insertion hole of the carrier, and the circular column that is transported by the travel of the carrier is The magnetic part of the columnar electronic component is attracted by a linear attraction/rotation member and floated above the support part within the insertion hole, and the cylindrical electronic component attracted to the attraction/rotation member is pressed by the hole wall of the insertion hole and rotated. During this time, the coating film or color code formed on the outer periphery of the cylindrical electronic component is dried by the drying means. In this way, by supporting the cylindrical electronic component on the support part in the insertion hole of the conveyor and rotating it during drying, processing accuracy is not required, and the cylindrical electronic component can be manufactured with a simple structure. Components can be transported and dried smoothly and reliably, and therefore, contamination of cylindrical electronic components can be eliminated and economical efficiency can be improved.
Moreover, labor saving can be achieved.

[Brief explanation of drawings]

1 to 8 show an embodiment of the drying device of the present invention, FIGS. 1 and 2 are plan views showing an example of a conveyance system, and FIG. 3 is a conveyance body unit constituting a conveyance body. , FIG. 4 is a partially enlarged view of FIG. 1, FIG. 5 is a sectional view taken along the arrow in FIG. 4, FIG. 6 is a right side view of FIG. 5, and FIG. of-
8 is a right side view of FIG. 7, FIGS. 9A to C are perspective views showing the manufacturing order of the resistor, and FIGS. 10 to 12 are conventional drying 10 is a plan view of a main part, FIG. 11 is a sectional view taken along the line XI-XI in FIG. 10, and FIG. 12 is a right side view of FIG. 11. 1...Carrier, 2...Carrier unit, 7...
Insertion hole, 8... Support part, 9... Chain, 19, 2
0, 21, 22... Sprocket, 35... Guide rail, 38... Attraction rotation member, 40... Magnet, 45, 46... Cover, 47, 48...
Sheathed heater (drying means).

Claims (1)

[Scope of utility model registration request] A cylindrical electronic component having a magnetic part on both sides can be inserted, and an insertion hole having a support part that supports both ends of the cylindrical electronic component is arranged in a row at the bottom. A transport body, a guide member that guides the travel of the transport body, a reversing drive device that runs the transport body, and a magnetic part of the cylindrical electronic component that is transported by the travel of the transport body to be attracted to the cylindrical electronic component. A linear suction rotation member that floats the component above the support portion within the insertion hole of the carrier; a cover provided to cover at least a cylindrical electronic component that is suctioned by the suction rotation member; 1. A drying device for a cylindrical electronic component, comprising: a drying means provided inside the cylindrical electronic component for drying the cylindrical electronic component.