JPS59109271A - Painting device - Google Patents

Abstract

PURPOSE:To handle respective machines with one operator and to improve working efficiency in saving operation for transporting work by juxtaposing a painting machine and drying machine near the taking-out port for the work of a molding machine. CONSTITUTION:An operator M puts the work taken from a work taking-out port 3 of an injection molding machine 2 in the painting booth of a painting machine 4 and places the same on a work support frame. The operator closes the door and operates a control panel and a speed controller to start driving a driving motor so that the paint is sprayed from a spray gun adjusted to an adequate position and is coated uniformly over the entire part of the rotating work. The operator takes out the work upon ending of the painting operation, puts the work in the drying booth of a drying machine 5 adjacently to the painting machine so that the work is dried by IR radiation. The dried work is taken from the drying machine and is packed successively in a product containing box 6 adjacent to the machine 5. All the operations from molding to painting, drying and boxing are thus accomplished efficiently by one operator.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a coating device for applying coating to a workpiece molded by various molding machines such as an injection molding machine.

Conventional technology Conventional painting equipment of this type in factories (for example, plastic products) was installed far away from the injection molding machine, so when painting injection molded workpieces, it was necessary to After storing a certain number of products in a container, etc., it was necessary to transport the container to the coating equipment.

Therefore, in conventional manufacturing plants of this type, workers are placed separately to operate the injection molding machine, to operate the coating equipment, and to transport the workpieces. This was necessary and was an impediment to rationalization. Further, if the injection molding machine and the coating device are separated, dust and the like tend to adhere to the workpiece during transportation, which causes an increase in the frequency of defective products after finishing the coating.

Purpose This invention was made in order to eliminate the above-mentioned conventional defects, and its purpose is to arrange a coating machine and a drying chamber in parallel near the workpiece outlet of a molding machine.
- It is possible for human workers to operate the molding stone, the coating machine, and the dryer, and it is possible to improve work efficiency by eliminating the time and effort required to transport the workpieces. An object of the present invention is to provide a novel coating device that can reduce the frequency of defective products.Embodiment An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a coating machine 4 and a dryer 5 are arranged in parallel near a workpiece outlet 3 of an injection molding machine 2 installed in a plastic product manufacturing factory 1. A duct 7 is connected to the top surface of the coating machine 4, and its tip is connected to a cyclone 8 for separating paint installed outside the factory 1. In addition, a product storage box 6 is arranged near the workpiece take-out port 3, and the worker M paints the workpiece W@painting N4 taken out from the injection molding machine 2, then dries it with drying N5, and then stores the product. It is designed to be packed in box 6.

The structure of the coating machine 4 is explained based on FIGS. 2, 3, and 4. A box-shaped coating booth 13 is installed on a stand 12 that can be moved by four casters 11, and the front side of the coating booth 13 is It can be opened and closed by a large door 14 and a small door 15. On the lower side of this painting booth 13, the mount 1
Inside the inner frame 16, as shown in Figure 3-5, there is an inner frame 16 made of silk.
j, the drive motor 17 with forward/reverse rotation and adjustable speed is %
Ufffied. Further, a rotating shaft 20 is rotatably supported by a pair of bearings 18 and 19 provided at the lower position of the inner frame 16, and a bevel gear 21 is provided at the lower end thereof.
is meshed with a bevel gear 22 attached to the motor shaft 17a of the drive motor 17.

As shown in FIG. 2, a workpiece support frame 23 is fixedly supported at the upper end of the rotating shaft 20 by a shaft portion 24, and this support frame 23 has four support protrusions for supporting the workpiece W! l' 25
is installed protrudingly. In addition, as shown in Fig. 3, the rotating shaft 2
A control disk 26 is fixed to the control disk 26, and an engagement protrusion 27 provided on the upper surface of the peripheral edge turns on and off a limit switch 28 installed on the inner frame 16, thereby controlling the workpiece support frame 2.
For example, when the limit switch f 28 is operated three times as the control disk 26 rotates, the rotation direction and rotation speed of the workpiece W are controlled appropriately according to the size and shape of the work W. When the direction of rotation of the shaft 20 is switched and the rotation causes the limit 6 to 28 to be operated three times, Imamaro rotates l1l.
Ql turned by l1120 is stopped. And said drive E-'17. Rotation 41120, workpiece support frame 23 and control disk 26 include two workpiece m sum means of the coating machine 4 in this embodiment.

As shown in FIGS. 2 and 4, the painting booth 13
A support stand 31 is formed on one side of the inside, and this support stand 31
A support rod 32 is erected on the soil surface. This pillar 32 has four support blocks 33, each one pointing downward!
Each support block 33 is inserted so as to be rotatable and movable up and down through an insertion hole 31 provided in the first position, and each support block 33 can be fixed at an arbitrary angle and vertically with a first positioning screw 35.

A support hole 36 extending horizontally is formed at one end of each support block 33, and a support arm 37 whose tip is bent at a right angle is inserted into each support hole 36 so as to be rotatable and movable in the horizontal direction. ing. Further, each support arm 37 has a second
It can be fixed at any angle and position using a positioning screw 42. And the support stand 31
．． Support column 32°, support block 33 and support arm 37
The screen constitutes the spray gun support means 30 of the coating machine 4 in this embodiment.

As shown in FIG. 2, a spray gun 38 is rotatably attached to the bent end of each support arm 37, and its nozzle 38a faces the workpiece W placed on the workpiece support frame 23. has been done.

In the figure, 39 is a spray air pipe connected to each spray gun 38, and 40 and /11 are an operating T-a pipe and a coating r1 supply pipe, respectively.

One side of the painting booth 13 (divided by a partition plate 43 to form a 111 air chamber 45. Partition plate 43
is provided with a plurality of filters 7'I/I, and during painting work, the air inside the painting booth 13 is exhausted through each filter 471 by the action of a suction blower (not shown).
After being sucked into the interior, it passes through the duct 7 and is discharged into the 41-icron 8 111. Also, a limit switch/I6 is attached to the upper front of the painting booth 13, which is turned on and off by the large door 14, and when the painting booth 13 is opened, the illumination switch to each of the spray guns 38 is supplied. The supply of Il is now stopped.

In addition, the pedestal 12 has an electric circuit control! M47 and a speed regulator 48 for the drive motor 17 are provided, as well as a solenoid valve 49 to which the coating 1 supply @41 is connected.

Next, the configuration of the dryer □ 5 installed adjacent to the coating machine 4 in the vicinity of the injection molding machine 2 is shown in FIGS. 5 and 6.
I will explain next.

The drying booth 511 of the dryer 5 has a box-like shape, and a work entry/exit section 52 is opened in the front thereof, and a heat insulating material 5G such as glass wool having aluminum foil 57 on the surface is pasted on the inner wall surface. There is. The dryer 5 (or the dryer booth 51) can be moved around on four casters 50 attached to the bottom surface.

Two support rods 54, front and rear, extending parallel to each other are installed on horizontal frames 53 in four upper and lower stages fixed to the inner surface of the drying booth 51. J located in the center of booth 51: Sea urchin aluminum shelf board 5
5 is fixed. 1- of each of these shelf boards 55
The workpieces W coated by the coating machine 4 are electrically charged on the surface.

Support plates 60 extending vertically are attached to the four corners of the drying booth 51 by means of cut-out pieces 59 (see FIG. 6). One infrared lamp 61 is disposed in each. Further, on both left and right walls of the drying booth 51, a light emitting element 62 such as a phototube and a light receiving element 65 such as a phototransistor are provided facing each other at a position between each shelf board 55. When a work W is placed on the stage, its presence is detected and the infrared lamp 61 of the corresponding stage is turned on.

In addition, in FIG. 5, 63 is a temperature control panel, and
6/l is the temperature π1 for displaying the temperature inside the drying booth 51.

Now, when carrying out painting work using this embodiment's $10 charger, which is composed of the above-mentioned paint machine 4 and dryer 5, the first step is to perform injection molding (how many 2 workpieces are removed). The workpiece W taken out from the outlet 3 is put into the coating booth 13 of the coating machine 4 and placed on the workpiece support frame 23. Then, the large door 14 is closed and the drive motor 17 is driven by operating the control panel 47 and speed regulator 48, and the workpiece support frame 2
3 and open the solenoid valve 49 and air supply source to scrape paint from the nozzle 38a of each spray gun 38. In this case, if the rotational speed, rotational direction, and rotational speed of the workpiece support frame 23 are appropriately controlled according to the shape or size of the workpiece W, it is possible to apply a coating with a good, even finish over the entire workpiece. can. In addition, since each spray gun 38 is movable in the vertical and horizontal directions, it is possible to open the small door 15 so that each nozzle 38 a correctly faces the workpiece W. By changing the position arbitrarily, it is possible to deal with the shape of the workpiece W accurately. Colander.

Where is the paint machine 4 adjacent to the dryer 1 and the 5 dryer 1? It is placed in the booth 51 and placed on an arbitrary shelf board 55 as shown in FIG. Then, the light emitting element 62 and the light receiving element 65 of the corresponding stage detect the presence of the work W, and each infrared lamp 61 is automatically turned on, and the radiant heat and the aluminum cover 57 of the heat insulation board 56 and the aluminum shelf board 55 are - The outer surface of the workpiece is dried evenly by the anti-Qil heat.

Temperature control gA6 for each red 1/line lamp 61 illumination q4 hours
3) Since the timer within 3) has been set, the specified opening)
After the time has elapsed, each infrared lamp 61 automatically turns off.

Therefore, the first-year trader M carries the dried workpiece W to the drying booth 5.
Take it out from step 1 and dry it! By sequentially packaging the products in the product storage box G installed adjacent to the product storage box G 151, each operation from molding to painting and drying to packaging can be carried out efficiently. Moreover, according to the coating apparatus of this embodiment, (the former is Tatsumi, the formed work W
Since there is no need to transport the data to the remote ζ loading device, the transport time is 11! There is no risk of dirt etc. getting onto the i.

Effects As detailed above, this invention has a coating machine and a dryer lined side by side in the vicinity of the workpiece outlet of the molding machine.
This is an industrially excellent invention as a coating device because it can reduce the number of working personnel, prevent the adhesion of dust, etc., and provide a high-quality coating finish.

[Brief explanation of the drawing]

Figure 1 is a plan layout of a coating device embodying this invention;
Fig. 2 is a front view of the coating machine, Fig. 3 is a side view showing the main parts of the coating machine, Fig. 4 is a perspective view showing the spray gun support means,
Figure 5 is a front view showing the dryer °, Figure 6 is the △- of Figure 5.
It is a sectional view taken along the A line. Cutting molding machine 2, workpiece outlet 3, coating machine 4, dryer 5,
Painting booth 13, workpiece, sum means 29, spray gun support means 30, drying booth 51, shelf board 55, infrared lamp 61, workpiece W. Special '''n'F Applicant: 71 Wako Co., Ltd. Attorney Patent Attorney 1) Mochinobu 13-

Claims (1)

[Claims] 1. A coating machine (4) having a box-shaped coating booth (13) that can be opened and closed, and this coating machine (4) applies rotational force to a workpiece (W) in the coating booth (13). and a spray gun support means (30) for positionally adjustable support of the spray gun (38) in the coating booth (13); A dryer (5) having a booth (51), and this drying 1! <5) consists of providing a heat radiation member (61) and a plurality of workpiece placement members (55) in the drying booth (51), and molds the coating machine <4) and the dryer (5). A coating device characterized in that it is installed in parallel near the workpiece outlet (3) of the 130T machine (2). 2. The work disturbance means (29) is configured to disturb the painting booth (
13) A drive motor (17) installed outside that is capable of forward/reverse rotation and adjustable speed, and a rotating shaft (17) rotated by the drive motor (17) with its tip extending into the painting booth (13).
20), a support frame (23) that is attached to the tip of the rotating shaft (20) and supports the workpiece (W);
20) A control unit +J' (26) attached to the drive motor and configured to control the rotation speed and rotation direction of the drive motor (17) by turning on and off a limit switch (28). Painting equipment described. 3. The spray gun support means (30) includes a column (32) installed upright in the painting booth (13) and a plurality of columns attached to the column (32) so as to be vertically adjustable. Support block (33) and each support block (33)
2. The coating device according to claim 1, further comprising a support arm (37) which is provided so as to be horizontally adjustable, and which rotatably supports each of the spray guns (38) at its tip end. . 4. The coating apparatus according to claim 1, wherein the drying booth (51) has a sensing means (62) for detecting the presence or absence of a workpiece (W) and turning on/off the heat dissipating member (61). . 5. Claim 1, wherein the heat radiating member is an infrared lamp (61) disposed at the four corners of the drying booth (51).
Painting equipment described in section. 6. The coating apparatus according to claim 1, wherein the workpiece loading member is a plurality of shelf boards (55) arranged vertically in parallel.