JP5021995B2 - Drying processing equipment - Google Patents

Description

  The present invention relates to a drying processing apparatus that can be suitably used to quickly and uniformly dry a processed product after plating and coloring.

In the process of coloring the processed product after galvanization and the like, the present applicant has made it possible to vary the color to be colored for each processed product, while greatly improving the work efficiency. A surface treatment apparatus has been developed and a patent application has been filed (see Patent Document 1).
This surface treatment apparatus is placed in a state in which a self-propelled carrier for conveying a workpiece travels in one direction with respect to a treatment line in which a plurality of treatment devices different for each color to be colored are installed in an endless arrangement. Color) to stop each self-propelled carrier or execute necessary processing on the processed product with the processing device, and then run each self-propelled carrier toward the original travel start position. It is a system that circulates as one cycle.

  Multiple self-propelled carriers are provided for the processing line (single trajectory), but each self-propelled carrier is not connected by a chain or the like, and each is independently based on a radio instruction from the controller. Running and stopping are controlled. Therefore, even when one of the self-propelled carriers is stopped corresponding to a predetermined processing device, the other self-propelled carriers perform their respective running and stopping, and the coloring processing operation imposed on itself. As a result, the work efficiency of the entire process can be improved.

  The final stage of the treatment line is equipped with a drying process that uses a centrifugal dehydrator. The time required for drying in this centrifugal dehydrator depends on the amount, shape, material, and type of color treatment applied. Depending on the reason, it is about 3 to 7 minutes. In contrast, each self-propelled carrier arrives at the drying process at intervals of several tens of seconds. Therefore, multiple centrifugal dehydrators are installed in a line along the processing line, and the self-propelled carriers are stopped sequentially from the centrifugal dehydrators that have been dried and become empty, so that processed products can be delivered. I have to.

Specifically, the processed products are fed from the self-propelled carrier to the centrifugal dehydrator arranged at the foremost side of the row, and then the processed products are loaded sequentially into the second centrifugal dehydrator and the third centrifugal dehydrator. As a matter of course, the drying will be finished sequentially, such as the second and third from the foremost centrifugal dehydrator.
Therefore, at the next timing after the end of drying with the last centrifugal dehydrator, the setting is made so that the drying with the frontmost centrifugal dehydrator ends, and the processed product has been put into this frontmost centrifugal dehydrator. The self-propelled carrier is set to take out the processed product after drying from the second centrifugal dehydrator as it is, and the next-stage self-propelled carrier enters the treated product into the second centrifugal dehydrator and from the third centrifugal dehydrator. Next, the next-stage self-propelled carrier is placed in the rear row side in order, for example, the next-stage self-propelled carrier is put into the third centrifugal dehydrator and the processed product is taken out and carried out from the fourth centrifugal dehydrator. Control was performed to transfer the operation to the dehydrator.
JP 2003-326209 A

  In the surface treatment apparatus according to the above patent application, the intended purpose has been achieved and the practical effect has been enormous. However, in the drying process, there is still room for improvement in the following points. That is, the self-propelled carrier that has finished supplying the processed product to the centrifugal dehydrator at the end of the line is a processing line of a short distance in order to take the processed product after drying from the frontmost centrifugal dehydrator. Must be returned to the forefront centrifugal dehydrator.

At this time, the time for the self-propelled carrier to move from the last centrifugal dehydrator to the foremost centrifugal dehydrator becomes a loss time.
The present invention has been made in view of the above circumstances, and in a drying processing apparatus that can be suitably used to dry a processed product after plating and coloring, further reducing loss time and further An object of the present invention is to provide a drying apparatus capable of improving efficiency.

In order to achieve the above object, the present invention has taken the following measures.
That is, the drying processing apparatus according to the present invention is connected to a transport apparatus that transports a processed product after plating and subsequent coloring via its work transfer section. A swivel provided on a stand, a plurality of dryers provided at predetermined intervals in the circumferential direction on the swivel, and a swivel while stopping the individual dryers in front of the workpiece transfer unit. And a turning drive unit for intermittently turning.

Incidentally, "drier" herein is a centrifugal dehydrator.
Since the plurality of dryers are moved in this way, the work delivery unit is replaced with respect to the directly-facing position. What is necessary is just to repeat in order the carrying-in, stop, and carrying-out of the processed product to the workpiece transfer unit).

Therefore, conventionally, the loss time that occurred when the self-propelled carrier was reversely transported was completely eliminated under the operation of the drying processing apparatus according to the present invention, and it is necessary to dry the processed product after plating and coloring. Further efficiency improvement will be achieved.
The dryer (centrifugal dehydrator) is provided with joint boards facing each other in the vertical direction with respect to the base and the swivel, and each joint of the base and swivel has a swivel axis of the swivel. Are formed so as to face and coincide with each other. And it is good to interpose a some bearing ball | bowl in the state clamped between these both circumferential grooves in the shape of a daisy chain.

By adopting such a structure, it is possible to simplify the structure as a support structure for the swivel base with respect to the base, to facilitate manufacturing (processing), and to reduce the cost. Also, the vibration absorption and swivel stability of the swivel base. This is useful for driving smoothness.
All hand dryer (centrifugal dehydrator), compared swivel base, may be provided in an arrangement such as the center of the centrifugal rotation is matched against one pitch circle centered on the swivel base of the pivot axis . The circumferential groove of the base and the circumferential groove of the swivel are preferably provided on the base and the swivel, respectively, as a single concentric diameter with the pitch circle.

By doing in this way, the influence of the vibration which generate | occur | produces with a centrifugal dehydrator can be suppressed to the minimum, and stability of a turntable can be improved. Moreover, since the circumferential groove provided with respect to a base and a turntable can be made into one each, it leads also to the simplification of a structure.
The dryer (centrifugal dehydrator) is preferably installed on the swivel base via an air cushion on the bottom surface. This is also beneficial for enhancing the stability of the swivel by minimizing the effects of vibrations generated by the centrifugal dehydrator.

  In the drying processing apparatus according to the present invention, when the processed product after plating and coloring is used for drying, etc., it is possible to further reduce the generation of loss time and further improve the efficiency.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of a drying apparatus 1 according to the present invention. This drying processing apparatus 1 can be used at the final stage of the process of coloring the processed product (bolts, nuts, etc.) after galvanizing, for example.
FIG. 5 shows an example of use. In the drying processing apparatus 1, a plurality of processing apparatuses 2 different for each color to be colored are arranged next to the coloring station 3 arranged in a circle, and the drying processing apparatus 1 performs drying from the coloring station 3. The processing apparatuses 1 are connected by a transport apparatus 4 for supplying processed products.

The transfer device 4 is also extended to the upstream side of the coloring station 3, and also has a role of carrying the processed product after plating from the upstream plating line (not shown) into the coloring station 3. In addition, the drying apparatus 1 is connected to a transport apparatus 5 used to carry out the dried processed product. These conveyors 4 and 5 are, for example, belt conveyors, which are installed in parallel and adjacent to each other while the transport direction is relatively reversed, and the processed products are stored in a short cylindrical water-permeable basket 6. Horizontal feed is possible.

  The conveying terminal part in the conveying device 4 for processing product supply is positioned facing the drying processing device 1, and a workpiece transfer part 7 a is formed here, and the conveying start end in the conveying device 5 for conveying the processed product is The workpiece transfer unit 7a is positioned so as to face the drying processing apparatus 1, and a workpiece receiving unit 7b is formed there. That is, the workpiece transfer portion 7a and the workpiece receiving portion 7b are combined to form the workpiece transfer portion 7 for the drying processing apparatus 1.

As shown in FIGS. 1 and 2, the drying apparatus 1 includes a base 10, a swivel base 11 provided on the base 10, and a predetermined interval in the circumferential direction on the swivel base 11. A plurality of dryers 12 and a turning drive unit 13 for turning the turntable 11 intermittently while stopping the individual dryers 12 facing the workpiece transfer unit 7.
Each dryer 12 is equipped with a centrifugal dehydrator. The basket 6 containing the processed product is stored in the horizontal direction at a high speed to rotate it at a high speed to blow off adhering moisture, and at the same time blow hot or hot air at high speed. Can be done.

In this embodiment, the base 10 has a box shape with a square shape in plan view, and the swivel base 11 has a disk shape with a donut shape in plan view, and is connected vertically with the center position in each plan shape as the pivot axis P. It has been done.
A joint board (joint board 15 on the base 10 side and joint board 16 on the swivel base 11 side) facing each other in the vertical direction is provided at a portion where the base 10 and the swivel base 11 are connected to each other. As shown in an enlarged cross-sectional view in FIG. 3, the joining board 15 of the base 10 and the joining board 16 of the swivel base 11 have the same diameter around the swivel axis P of the swivel base 11. The grooves 15a and 16a are formed so as to face each other.

Each of the circumferential grooves 15a and 16a is only one, and the groove cross section is V-shaped.
A plurality of bearing balls 20 are interposed between both of these circumferential grooves 15a and 16a, and all the bearing balls 20 are sandwiched by the circumferential grooves 15a and 16a from above and below. ing. For this reason, the swivel base 11 is in a state in which the swivel base 11 can be smoothly swung with respect to the base 10 without rattling.

The turning drive unit 13 is provided with, for example, a ring gear 23 centered on the turning axis P on the lower surface of the turntable 11. It is possible to adopt an appropriate configuration in which the electric motor 26 is connected and the electric motor 26 is driven and controlled.
In the swivel base 11, all the dryers 10 are arranged in such a manner that the centers of the respective centrifugal rotations coincide with each other on one pitch circle centered on the swivel axis P of the swivel base 11. Yes. The pitch circle is concentric and concentric with the circumferential groove 15 a of the base 10 and the circumferential groove 16 a of the swivel base 11. For this reason, the center of vibration acting when each dryer 10 is operated can be supported by the center of the bearing ball 20.

  The dryer 12 is installed on the swivel base 11 via an air cushion 30 on the bottom surface. As shown in FIG. 4, the air cushion 30 has a structure in which a metal mounting plate 32 is provided on both upper and lower surfaces around a hollow body 31 formed of a vibration absorbing material such as rubber. It is maintained at a predetermined internal pressure. It is preferable to provide four or more air cushions 30 at equal intervals per dryer 10.

As is clear from the above detailed description, the following operation can be performed in the coloring station 3 to which the drying processing apparatus 1 according to the present invention is connected. That is, now, it is assumed that one dryer 12 has stopped facing the workpiece transfer section 7, and the basket 6 containing the processed products that have already been dried is stored in this dryer 12. Suppose that
In this state, the basket 6 in the dryer 12 is taken out to the work receiving portion 7b by an appropriate transfer device (not shown) provided in the workpiece transferring portion 7, and the basket 6 is carried out by the transport device 5. It becomes like this.

In this state, the basket 6 containing processed products is conveyed from the coloring station 3 to the workpiece transfer unit 7 (work transfer unit 7a) by the transfer device 4, and provided in the workpiece transfer unit 7 when the transfer device 4 stops. An appropriate transfer device (not shown) transfers the basket 6 on the workpiece transfer unit 7 to the dryer 12 and stores it.
Then, the turning drive unit 13 intermittently turns the turntable 11 by a moving angle corresponding to the installation pitch of the dryer 12. Accordingly, the next-stage dryer 12 is stopped at the workpiece transfer section 7 so that the basket 6 is stored just before this position. Minutes away.

In this state, drying is started in the dryer 12 that is one pitch away from the position facing the workpiece transfer unit 7.
In the dryer 12 that is stopped directly opposite to the workpiece transfer section 7, the basket 6 containing the processed product dried by a transfer device (not shown) is appropriately transferred in the same manner as described above. The workpiece 6 is taken out to the workpiece receiving portion 7b), and the basket 6 is unloaded by the transfer device 5.

In this way, the transfer of the processed product from the workpiece transfer unit 7 to the dryer 12, the intermittent swiveling of the swivel base 11, the drying by the dryer 12, and the processed product after drying to the workpiece transfer unit 7. Removal and unloading are repeated in order.
As described above, in the drying processing apparatus 1 according to the present invention, the dryers 12 provided in a plurality of units are moved and replaced with respect to the workpiece transfer section 7 formed by the transfer apparatuses 4 and 5. It is like that. Therefore, the transport device 4 may repeatedly supply the processed product to the workpiece transfer unit 7a, and the transport device 5 may repeatedly receive the processed product from the work receiving unit 7b.

Here, the loss time that has conventionally occurred when the self-propelled carrier is reversely transported is completely eliminated under the operation of the drying processing apparatus according to the present invention, and the processed product after plating and coloring is dried. It will be possible to improve the efficiency of the process.
By the way, this invention is not limited to the said embodiment, It can change suitably according to embodiment.

The shape, size, amount (weight to be put in one dryer 10), material, etc. of the processed product to be processed are not limited. Also, the type of plating in the plating line applied before coloring is not particularly limited.
The number of dryers 10 installed on the swivel base 11 is not particularly limited. Further, the swivel base 11 does not necessarily have a disk shape as a whole, and the dryer 10 may be installed at the tip of the support arm so that the support arm protrudes radially from the center of the swivel. it can.

  In the above-described embodiment, by adopting the two transport devices 4 and 5 having different roles of loading and unloading with respect to the drying processing device 1, the workpiece transfer unit 7 a and the workpiece receiving unit 7 b are provided respectively. However, the workpiece transfer unit 7 may be formed at the facing position by installing one transport device so as to cross the facing position of the drying apparatus 1. Alternatively, the workpiece transfer unit 7 can be formed at the directly facing position of the drying processing apparatus 1 by enabling the transfer direction to be switched between forward and reverse in one transfer apparatus.

  Note that the structure employed as the transport device is not limited to the belt conveyor, and various conventionally known transport devices can be employed.

It is the top view which showed one Embodiment of the drying processing apparatus which concerns on this invention. It is an AA arrow line view of FIG. It is sectional drawing which expands and shows the B section of FIG. It is the side view which expanded and showed the air cushion. It is the top view which showed the example of installation of the drying processing apparatus.

DESCRIPTION OF SYMBOLS 1 Drying processing apparatus 4 Conveying apparatus 7 Work delivery part 10 Base 11 Swivel base 12 Dryer 13 Swivel drive part 15 Base joining board 15a Circumferential groove provided in base joining board 16 Swivel joining board 16a Circumferential groove provided on the joining board of the swivel base 20 Bearing ball 30 Air cushion P Swing axis

Claims (3)

In a drying processing apparatus connected via a workpiece transfer section (7) to a transport apparatus (4) for transporting a processed product after plating and subsequent coloring, a base (10) and the base (10) A swivel base (11) provided above, a plurality of dryers (12) provided on the swivel base (11) at predetermined intervals in the circumferential direction, and individual dryers (12) A swivel drive unit (13) for intermittently swiveling the swivel base (11) while stopping to face the transfer unit (7) ,
The dryer (12) is a centrifugal dehydrator,
The base (10) and the swivel base (11) are provided with joint boards (15, 16) facing each other in the vertical direction, and each joint board (10) of the base (10) and the swivel base (11) ( 15, 16) are formed with circumferential grooves (15a, 16a) of the same diameter centered on the pivot axis (P) of the swivel base (11) so as to face each other. A drying processing apparatus , wherein a plurality of bearing balls (20) are interposed in a daisy chain in a state of being sandwiched between the circumferential grooves (15a, 16a) . All the dryers (12) are arranged with respect to the swivel base (11) so that the centers of centrifugal rotation coincide with each other on one pitch circle centered on the swivel axis (P) of the swivel base (11). The circumferential groove (15a) of the base (10) and the circumferential groove (16a) of the swivel base (11) are respectively provided as one piece having the same diameter and concentricity with the pitch circle. drying apparatus according to claim 1 Symbol mounting features. The drying treatment apparatus according to claim 1 or 2, wherein the dryer (12) is installed on the swivel base (11) via an air cushion (30) on the bottom surface.

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