JPS6254552B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION -Field of Industrial Application- This invention relates to an automatic coating device for coated chopsticks.

-Technical background- The painting of the shaft of coated chopsticks is done as shown in Figure 10.
This is done by inserting a chopstick 11 into a through hole 10 with a scraper 69 in the paint tank 3 and pulling it out. The chopsticks 11 inserted into the paint tank 3 are filled with paint 7.
It is painted while being soaked in water, and when it is pulled out from the through hole 10, the excess paint is scraped off by a scraper 69. The through hole 10 is open when the chopstick 11 is not inserted, but highly viscous paint will not leak from the small through hole 10, and if there is a risk of leakage, it will be kept in the paint tank 3. Negative pressure is applied to prevent leakage.

The chopsticks 11a whose shafts have been painted are dried with their heads planted in the support holes 50 of the pallet 9 as shown in FIG. It is said that

-Conventional techniques and problems- Conventionally, painting was done by inserting a chopstick 11 into the through hole 10 of the paint tank 3.
Because it is very time-consuming, we put chopsticks 11 before painting first.
As shown in Figure 1, the paint tank is planted in advance on a pallet 9, and the paint tank is provided with a large number of through holes 10, and by moving the paint tank 3 forward and backward, a large number of chopsticks 11 can be inserted.
A device is in use that allows the coating to be applied all at once. However, with the conventional device having the above structure, it takes time and effort to plant the chopsticks 11 on the pallet 9.
Attempting to automate this process had the disadvantage that the equipment would become extremely complex.

-Object of the Invention- The present invention has been made for the purpose of providing an automatic coating device with a simple structure that can efficiently coat the shafts of chopsticks without manual intervention.

-Means for achieving the purpose- The most important features of the automatic painting device of this invention are:
After the paint tank 3 is rotatably mounted and the chopsticks 11 are pushed into the paint tank 3 from the side, the paint tank 3 is rotated so that the through hole 10 faces downward, and the chopsticks 11 are pushed downward from the paint tank 3. The structure is such that it can be pulled out and planted directly on the pallet 9.

-Example- Fig. 1 is a side view conceptually showing the automatic coating apparatus of the present invention, in which 1 is a hopper for storing chopsticks before coating, 2 is an alignment conveyor for arranging and carrying out chopsticks from the hopper 1, 3 is a paint tank; 4 is a pushing device for pushing the chopsticks spread out on the alignment conveyor 2 into the paint tank 3; 5 is a tip guide for the chopsticks when pushing them; 6 is a conveyor that ascends below the paint tank 3; 41 and 44 are gripping claws attached to the conveyor 6, 8 is a carry-out conveyor, and 9 is a pallet on the carry-out conveyor 8. The paint tank 3 has a through hole 10 having the structure shown in FIG.
are arranged in a line in a direction perpendicular to the paper plane of FIG.

FIG. 2 is a perspective view of the hopper 1 and the alignment conveyor 2. Chopsticks 11 are put into the hopper 1 with the head facing toward you, and are sent out by the alignment conveyor 2, which is driven around intermittently by a motor 12. . As shown in FIG.
rollers 15...15 are mounted through rollers 15...15, and the chopsticks 11 falling from the hopper 1 are received one by one in the valley between the rollers 15...15 and unfolded in a line. Reference numeral 16 denotes a positioning plate fixed to one chain sprocket shaft 17 of the alignment conveyor 2. When a predetermined number of chopsticks 11 are spread out on the alignment conveyor 2, the motor 12 and the alignment conveyor 2 are linked by a clutch (not shown). is released, the pin 19 at the tip of the lever 18 fits into the notch 20 of the positioning plate 16, and the alignment conveyor 2 stops at a predetermined position. Although not shown in the figure, when the motor 12 is started, the lever 1
Needless to say, a mechanism for retracting 8 upward is provided.

Figure 4 shows chopsticks 1 spread out on the alignment conveyor 2.
1 is a perspective view showing a pushing device 4 and a tip guide 5 of FIG. The pushing device 4 has a pushing plate 22 that moves forward and backward in the axial direction of the roller 15 by a cylinder 21, and the pushing plate 22 moves beyond the alignment conveyor 2 to the fourth
By advancing toward the front in the figure, the chopsticks 11...11 spread out on the alignment conveyor 2 are pushed into the through holes 10...10 of the paint tank 3.

The tip guide 5 has a receiving plate 23 disposed below.
and the presser plate 24 that ascends upward.
1...It guides the tip of 11, and the receiving plate 2
3 is provided at its lower side so as to be rotatable around a shaft 25 and biased upright by a suitable spring, and the presser plate 24 is movable up and down by a cylinder 26 and biased downward by a spring 27. It is installed in the same condition. When the chopsticks 11 are unfolded on the alignment conveyor 2, the presser plate 24 moves down and the recesses 28...
Between ...28 and the upper side of the receiving plate 23, the chopsticks 11...1
Chopsticks 1 that loosely hold the tips of 1 and move in the axial direction
1...Guide 11. And chopsticks 11...11
The tip of the paint tank 3, which will be described later, has a through hole 10...1
0, the presser plate 24
moves upward and retreats, and the bar 29 fixed to the end of the push-in plate 22 engages with the roller 30 pivoted to the receiving plate 23, causing the receiving plate 23 to fall toward the front in FIG. 4 and retreat. let That is, the guide of the tip of the chopsticks 11...11 is switched from the guide by the receiving plate 23 and the holding plate 24 to the guiding by the through hole 10 of the paint tank 3, and the head of the chopstick, which is thicker than the tip, passes through the receiving plate 23 and the holding plate 24. The holding plate 24 prevents it from being blocked.

As shown in FIG. 5, the paint tank 3 has through holes 10 arranged in a row, and further has through holes 31 that loosely hold the tips of chopsticks inserted through the through holes. A guide plate 32 having 31 is provided inside. This paint tank 3 has a through hole 10.
. . . The chopsticks 11 are mounted so as to be rotatable around an axis 33 parallel to the arrangement direction of the chopsticks 11, and after the chopsticks 11 . It rotates once and reaches the downward position shown by the solid line in FIG. The chopsticks 11...11 inserted into the paint tank 3 are inserted into the through holes 10 as shown in FIG.
. . . 10 scrapers 69 . . . , the chopsticks 11 . . . 11 will not fall even if the paint tank 3 is turned downward.

The carrier 6 placed below the paint tank 3 is
As shown in FIG. 7, it has a frame 35 slidably mounted on a vertical guide rod 34, and the frame 35 is raised and lowered by a cylinder 36. Two claw plates 37 and 38 are attached to the frame 35 so as to be slidable in the direction of the seventh arrow in the figure.
They are biased by a compression spring 39 in a direction that separates them from each other.

One claw plate 37 is provided with recesses 40...40 in a row, and in each recess 40, as shown in FIG. 8, a gripping claw 41 is slidable in the direction of the arrow in FIG. In addition, it is mounted while being biased in the advancing direction by a spring 42. There is a V-notch 4 on the tip side of each gripping claw 41.
3 are provided, and V-notches 44, which serve as gripping claws, are provided on the claw plate 38 opposite to this, and the chopsticks 11 are gripped from the side between the pair of gripping claws 41, 44. There is.

On the other hand, a seesole lever 46 is pivotally attached to a pin 45 set on the frame 35.
Rollers 47 and 48 are vertically mounted on both ends of the rollers 47 and 48, and claw plates 37 and 38 are in contact with the back of the rollers 47 and 48, respectively. Reference numeral 49 denotes a cylinder that swings the seesaw lever 46 around the pin 45, and the operation of the cylinder causes the two claw plates 37,
38 move toward each other. That is, with the paint tank 3 facing downward, the cylinder 36
to move the conveyor 6 upward, and then move the cylinder 49 upward.
When activated, the heads of the chopsticks 11...11 protruding downward from the paint tank 3 are gripped by the gripping claws 41,
The chopsticks 11 .

An unloading conveyor 8 is provided below the conveyor 6, and on the unloading conveyor 8, as shown in FIG. It is mounted in an accurately positioned state. Unloading conveyor 8
corresponds to the lifting and lowering movement of the conveyor 6, the pallet 9
It is designed to be driven toward the arrangement pitch P of the upper support hole 50. In the illustrated embodiment, a connecting rod 54, a bell crank 55, and a driving rod 56 are connected to a lever 53 extending from a driving shaft 51 of the conveyor 8 via a one-way clutch 52, and the driving rod 56 is used to raise and lower the conveyor 6. The drive rod 56 extends vertically along the path, and is inserted into a through hole 57 provided in the frame 35 of the carrier 6. A stopper 58 is fixed to the upper end of the drive rod 56. The structure is such that the carry-out conveyor 8 is driven intermittently using the vertical movement. Of course, the carry-out conveyor 8 may be provided with an independent motor, and the carry-out conveyor 8 may be driven intermittently in accordance with the up-and-down movement of the carrier 6 by electrical control.

59 is a positioning plate fixed to the drive shaft 51 of the carry-out conveyor 8, and 60 is a notch 6 of the positioning plate 59.
1... It is a lever equipped with a roller 62 that is fitted into 61, and the roller 62 is fitted into the notch 61 every time the carry-out conveyor 8 is driven at a predetermined pitch, thereby regulating the stop position of the carry-out conveyor 8. It is.
Further, the pallet 9 is provided with notch holes 63...63, and the frame 35 of the carrier 6 is provided with dowel pins 6.
4 is provided, and when the carrier 6 reaches the lower moving end, the knock pin 64 fits into the knock hole 63 located directly below the knock pin 64, thereby positioning the pallet 9 and the frame 35 of the carrier. It's becoming like that.

The pallet 9 is stopped at a position where one row of support holes 50...50 is directly below the through holes 10...10 of the paint tank 3, which face downward, and when the conveyor 6 reaches the lower end of movement, Chopsticks 11 held by carrier 6
. . 11 heads are inserted into the support holes 50 . . . 50 in the row of the pallet 9. In this state, the cylinder 49 returns, the claw plates 37 and 38 open, and the chopsticks 11...
...11 is planted on pallet 9. When the carrier 6 rises again, its frame 35 is moved to the stopper 58.
The conveyor 8 is driven one pitch through the bell crank 55, the connecting rod 54, the lever 53 and the one-way clutch 52, and the pallet 9 is moved through the support hole 50 of the next example.
. . . 50 comes to a position directly below the carrier 6. Reference numerals 65, 66, 67, and 68 in FIG.
...It is provided to detect when 11 falls down.

Through the above-described series of mechanisms, the chopsticks 11...11 loaded sideways into the hopper 1 are carried out with their shafts painted and planted on the pallet 9. Chopsticks 11...11 during this time
The changing of the posture from horizontal to vertical is performed by rotating the paint tank 3, and the posture of the chopsticks 11...11 spread out horizontally on the alignment conveyor 2 is changed to vertical by rotating the paint tank 3. By conveying the chopsticks 11...11 pulled out downward from the paint tank 3 by the carrier 6 to the lower moving end, the chopsticks 11...11 are transferred to the pallet 9.
It is planted on top.

-Effects of the Invention- Therefore, according to the coating device of the present invention, a large number of chopsticks to be coated can be easily aligned, and the mechanism of the alignment device is simplified. Furthermore, since the removal of the chopsticks from the paint tank and the planting of the chopsticks onto the pallet can be performed in one direct operation, the movement of transporting the chopsticks within the coating equipment is simplified, and therefore the equipment The structure is simplified and the reliability of operation is improved. Therefore, by adopting the configuration of the present invention, it is possible to easily realize a fully automatic painting device with a simple structure and high reliability, which can paint the shafts of chopsticks without any human intervention. There is.

[Brief explanation of the drawing]

Fig. 1 is a side view conceptually showing the automatic coating device of the present invention, Fig. 2 is a perspective view of the hopper and alignment conveyor, Fig. 3 is an enlarged side view of the alignment conveyor, and Fig. 4 is a side view conceptually showing the automatic coating device of the present invention.
The figure is a perspective view showing a chopstick pushing device and a tip guide developed on an alignment conveyor, FIG. 5 is a perspective view of a paint tank, and FIG. 6 is a sectional view showing a state in which chopsticks are inserted into a paint tank. Figure 7 is a perspective view of the main parts of the conveyor, Figure 8 is a perspective view showing the structure of the gripping claws, Figure 9 is a perspective view of the conveyor and the pallet on the delivery conveyor, and Figure 10 is a perspective view of the lacquer chopsticks. Cross-sectional diagram showing the painting method,
FIG. 11 is a sectional view showing the state in which painted chopsticks are held. 3: Paint tank, 4: Pushing device, 6: Transport body,
8: Unloading conveyor, 9: Pallet, 10: Through hole,
11: Chopsticks, 41: Gripping claws, 44: Gripping claws, 50:
Support hole, 69: Scrapper.

Claims (1)

[Claims] 1. A paint tank equipped with a plurality of through holes with scrapers for inserting chopsticks, a device for pushing aligned chopsticks into the through holes of the paint tank, a conveyor that moves up and down below the paint tank, and The paint tank is rotatably mounted around an axis parallel to the direction in which the through holes are disposed, and the paint tank is rotatably mounted on a pallet conveyed by an unloading conveyor disposed below the conveyor. The conveyor has gripping claws that vertically grip the protruding end of the chopsticks pushed into the pallet from the side, and the carrier places the lower end of the chopstick gripped at its lower moving end into a support hole provided in the pallet. Painting equipment for painting.