JP3095858B2 - Work mounting jig and pallet fitting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work mounting jig and a pallet fitting structure used when a printed material is transferred onto a work having a curved surface or an irregularly shaped surface by a hydraulic transfer printing method.

[0002]

2. Description of the Related Art On a liquid surface of a liquid, for example, a water tank, a print pattern supporting film having a print pattern to be printed on a surface of a thin film soluble in the liquid is supplied so as to float. A hydraulic transfer method is known (Japanese Patent Application Laid-Open No. Sho 51-2).
No. 1914).

In this hydraulic transfer method, when the print pattern supporting film comes into contact with the liquid surface, it is dissolved in the liquid to the extent necessary for transfer in a distributed manner. Then, the print pattern to be printed floats on the liquid surface together with the film in which the melt is distributed. For this reason,
When the surface to be printed of the work to be printed on the liquid surface is immersed in the pressing liquid, the print pattern adheres to the surface to be printed due to the liquid pressure. Therefore, when the work is pulled up from the liquid and the film is washed away with the liquid, the transfer printing of the print pattern is completed.

The hydraulic transfer method of this type is advantageous in that any printing pattern can be printed even when the surface to be printed is a non-planar surface such as a curved surface or an irregularly shaped surface. Suitable for printing on surfaces such as cabinets.

[0005]

By the way, the work to be subjected to the hydraulic transfer method is subjected to dust removal and degreasing before the hydraulic transfer is performed, and the surface is previously cleaned. The work on which the print pattern has been transferred to the surface by the hydraulic transfer device is then coated on the surface.

However, the dust removal and degreasing work performed on the work is performed in a step different from the hydraulic transfer work, and the fact is that the work is exclusively performed by hand. The work of painting the work is also performed in a step different from the hydraulic transfer work. For this reason, it takes a long time from the dust removal and degreasing work to the work through the hydraulic transfer work to the painting work. In addition, since each work process is independent, when transferring the work between each process, it is conceivable that new dust or the like may adhere to the work surface.

To cope with such a problem, it has been devised to continuously automate the dedusting and degreasing work, the hydraulic transfer work and the painting work on the work. In this case, it is conceivable that the work is placed on the pallet on the conveyor and transported continuously.However, in order to carry the workpiece continuously, the work can be easily placed on the pallet and lowered. It is required to prevent falling inside.

[0008] The present invention has been made in view of such a point, the work can be securely fixed on the pallet of the conveyor, and the work can be prevented from dropping during the transfer. An object of the present invention is to provide a fitting structure of a mounting jig and a pallet.

[0009]

SUMMARY OF THE INVENTION The present invention provides a work mounting fixture comprising an upper frame for mounting and fixing a work, and a lower frame having a substantially square outer shape connected to the upper frame via a connecting frame. Tool, and a pallet provided on a conveyor, on which the lower frame is placed.The pallet has a bottom plate, and a side plate provided on a peripheral edge of the bottom plate and holding the lower frame from the side. A work mounting jig and a pallet fitting structure, wherein a pawl engaging with one side edge of the lower frame is mounted on a side plate.

[0010]

[Function] The work mounting jig is tilted so that one side edge of the lower frame is located below, the work mounting jig is placed on the bottom plate of the pallet, and the work mounting jig is moved in the claw direction of the pallet. To engage one side edge of the lower frame with the claw.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. First, a hydraulic transfer printing facility using a work mounting jig will be described with reference to FIGS.

FIG. 5 is a diagram showing the second floor portion of the hydraulic transfer printing equipment, and FIG. 6 is a diagram showing the first floor portion. First, as shown in FIG. 6, the hydraulic transfer printing equipment includes a dust removing and degreasing device 50 for cleaning the surface of the work 8. As shown in FIG. 6, the dust removing and degreasing apparatus 50 includes a degreasing chamber 51 provided to partition the inside of a processing chamber 56 and a first washing chamber 5.
2, a second washing chamber 53, a post-processing chamber 54, and an air blow chamber 55. In the processing chamber 56, a degreasing chamber 51, a first rinsing chamber 52, a second rinsing chamber 53, and a post-processing chamber 5 are provided.
4 and an air blow chamber 55, a dust removing and degreasing conveyor 57 is provided.

As shown in FIG. 6, a common work transfer conveyor 40 for transferring the work 8 whose surface has been cleaned by the dust removal and degreasing device 50 to the next device is provided beside the dust removal and degreasing device 50. It is arranged. As shown in FIG. 6, the common work transport conveyor 40 passes through the draining / drying furnace 26 from the side of the dust removing and degreasing device 50, and reaches the second floor from the opening 42 as shown in FIG.

As shown in FIG. 5, two rows of hydraulic transfer units 20, 20 are provided on the second floor, and spare conveyors 24, 24 are provided beside the hydraulic transfer units 20, 20, respectively. Has been established.

Next, the hydraulic transfer device 20 will be described in detail with reference to FIG. As shown in FIG. 7, the hydraulic transfer device 20 includes:
It has a water tank 1 storing water 2 and a transfer chain 10 provided on the water tank 1. The transport chain 10 has rollers 15,
A transfer pallet 9 for holding the work 8 is attached to the transfer chain 10. That is, the transfer pallet 9 holds the work 8 via the pallet mounting jig 115. A slide plate 13 is attached to one side of the water tank 1. The water-soluble film 3 wound around the supply roller 7 is sent from the slide plate 13 into the water tank 1 through the space between the feed roller 4 and the dampening roller 5. Dampening roller 5
The activating liquid 6a is accommodated in the activating liquid tank 6, and the activating liquid 6a is applied to the surface of the water-soluble film 3 on the side of the printing pattern 3a. A water flow nozzle 11 is provided in the water tank 1 so as to form a water flow toward the left in FIG.

In such a hydraulic transfer device 20, the water-soluble film 3 having a print pattern 3a formed on the surface thereof is wound around the supply roller 7. The water-soluble film 3 fed from the supply roller 7 passes through the space between the feed roller 4 and the dampening roller 5 and is sent from the slide plate 13 into the water tank 1. During this time, the activating liquid 6a is applied from the dampening roller 5 to the surface of the water-soluble film 3 on the printing pattern 3a side, and the printing pattern 3a is activated.

The water-soluble film 3 that has reached the water tank 1 floats on the water 2 to the left with the printed pattern 3a facing upward. During this time, the transfer chain 10 provided above the water tank 1
Transports the work 8 placed on the pallet 9 in the direction of arrow L in FIG. While being conveyed from the roller 16 to the roller 17, the work 8 is gradually immersed in the water 2 of the water tank 1 while pressing the water-soluble film 3 downward, and then the work 8 is pulled up from the water 2 toward the roller 15. Can be When the work 8 is immersed, the water-soluble film 3 having the print pattern 3a adheres to the surface of the work 8, and when the work 8 is pulled up from the water 2, the water-soluble film 3 adheres to the surface of the work 8 as it is.

Thus, the print pattern 3a is transferred to the surface of the work 8. The remaining water-soluble film 3 on the water tank 1 is then dissolved by the water 2 downstream of the water tank 1.

As shown in FIG. 5, the hydraulic transfer device 20,
On the downstream side of 20, a film removing device 21 is disposed via a connecting conveyor 27. The film removing device 21 is a hydraulic transfer device 2
Work 8 with water-soluble film 3 adhered to the surface by 0
The hot water is jetted to dissolve the water-soluble film 3.

The common work transport conveyor 40 that has risen to the second floor from the opening 24 transports the work 8 processed by the hydraulic transfer device 20 and the film removing device 21 and enters the draining / drying furnace 24. Then, the common work transport conveyor 40
Passes through the draining / drying oven 24 and across the baking / drying oven 23 to reach the coating device 22.

The draining / drying furnace 24 includes a film removing device 21.
Water droplets are removed from the surface of the work 8 into which the hot water has been sprayed. The coating device 22 has four coating booths 3
1a, 31b, 31c, and 31d. Each coating booth applies a coating to the work 8 having a printed pattern transferred to the surface. That is, each painting booth 3
1a, 31b, 31c, 31d, the painting robot 3
2a, 32b, 32c, and 32d are provided, and these painting robots 32a, 32b, 32c, and 32d can correspond to works 8 having different shapes.

As shown in FIG. 5, the work 8 supplied from the common work transport conveyor 40 to the coating apparatus 22 is transferred to the entrance conveyor 61 in the coating apparatus 22 by the automatic transfer device 65.
It has been transferred to. The common work transport conveyor 40 then extends to the baking / drying furnace 23 through the side green of the coating device 22.

On the other hand, an outlet conveyor 62 extends in the coating device 22 in parallel with the inlet conveyor 61, and the outlet conveyor 62 is located above the common work transport conveyor 40. Between the entrance conveyor 61 and the exit conveyor 62, the entrance conveyor 61 and the exit conveyor 62 are orthogonal to each other, and each of the coating booths 31a, 31b, 31
booth conveyors 63a and 63 penetrating through c and 31d
b, 63c and 63d are provided. On the exit side of the exit conveyor 62, an automatic transfer device 66 for transferring the work 8 on the exit conveyor to the common work transport conveyor 40 is provided. Further, a connecting conveyor 64 is connected to the automatic transfer device 66.

As shown in FIG. 5, a baking drying furnace 23 is provided downstream of the coating device 22 for drying the work 8 whose surface has been coated by the coating device 22 and solidifying the coating material. The common work transport conveyor 40 extends from the side line of the coating apparatus 22 into the baking / drying furnace 23, and then descends from the baking / drying furnace 23 through the opening 43 to the first floor. After that, the common work transport conveyor 40 moves to the unloading section 9.
5 and extends to the side of the dust removal and degreasing device 50.

The above is the outline of the hydraulic transfer printing equipment. Next, the work mounting jig and pallet fitting structure according to the present invention will be described.

First, the common work transport conveyor 40 will be described. As shown in FIGS. 1 and 2, the common work transport conveyor 40 includes rollers 103 sliding on rails 105.
And a leg 10 of the movable body 102
And a driving body 110 that moves the movable body 102 in the horizontal direction by contacting the movable pallet 8 with the common pallet 1
00 is held.

The driving body 110 is held by a chain 111 and can freely contact the leg 108 of the movable main body 102. A plurality of movable bodies 102 are arranged on a rail 105, and each movable body 102 has a swing projection 104 on the front surface and a fixed projection 106 on the rear surface. The swing projection 104 of each movable body 102 comes into contact with the fixed projection 106 of the adjacent movable body 102 and swings upward to raise the leg 108 attached to the swing projection 104. Has become.

That is, when a plurality of movable bodies 102 are accumulated at one location and come into contact with each other, the swinging projection 104 of each movable body 102 comes into contact with the fixed projection 106 of the movable body 102 located at the front, and the leg section By raising 108, the engagement between the driving body 110 and the leg 108 is released. Then, when the movable main body 102 located in front is separated, the swing projection 104 swings downward,
The driving body 110 and the leg 108 are engaged again, and the movable body 10
2 is driven by the driving body 110 and moves on the rail 105.

A work mounting jig 115 is placed on the common pallet 100. Work mounting jig 1
3 and 4, the work 15 has an upper frame 120 on which the work 8 is mounted and the work 8 is fixed by fixing means (not shown), and a lower frame 121 mounted on the common pallet 100. doing. The upper frame 120 and the lower frame 121 are connected by a connecting frame 122. Each of the upper frame 120, the lower frame 121, and the connecting frame 122 is made of a material such as steel, and a flag 117 is attached to the lower frame 121.

Further, as shown in FIG.
Reference numeral 21 has a substantially square outer diameter, and the common pallet 10
0 also has a shape corresponding to the lower frame 121.
That is, as shown in FIGS. 1 and 2, the common pallet 100 has a bottom plate 130 on which the lower frame 121 is placed, and the outer shape of the bottom plate 130 is substantially rectangular. A side plate 131 for holding the lower frame 121 from the side is provided on the periphery of the bottom plate 130 in a square shape. Further, a claw 101 that engages with one side edge 121a of the lower frame 121 is linearly extended and attached to one side edge 131a of the side plate 131. This claw 101 is a bottom plate 13
The lower frame 121 is engaged with one side edge 121a of the lower frame 121 between them, and can be released by sliding the lower frame 121 in the horizontal direction.

As shown in FIG. 4, when the work mounting jig 115 mounts and fixes, for example, a small work 8a, a small flag 117a is mounted on the lower frame 121 to mount and fix the large work 8b. Is
A large flag 117b is attached. The shape of the flag 117 is read by, for example, a light emitter 125a and a light receiver 125b provided in the automatic transfer device 65 (FIG. 5), and the pallet mounting jig 115 is read.
The shape of the work 8 placed on the work is identified.

The work mounting jig 115 is a jig for mounting the work 8 on the pallet of each conveyor, and fixes the work 8 during the entire process.

Next, the operation of the present embodiment having such a configuration will be described.

First, the work 8 is fixed on the upper frame 120 of the work mounting jig 115. In this case, the small work 8a is fixed on a work mounting jig 115 having a small flag 117a, and the large work 8b is fixed on a work mounting jig 11 having a large flach 117b.
5 fixed on.

Next, a pallet mounting jig 115 to which the work 8 is fixed is placed on the entrance side of the dust removing and degreasing conveyor 57. Thereafter, the work 8 is transported into the degreasing chamber 51, and a degreasing liquid is jetted from the nozzle 93 to the work 8 in the degreasing chamber 51.

As the degreasing solution, a potassium phosphate-based liquid in which a surfactant cannot be used can be used. Since such a potassium-phosphate-based liquid does not contain a surfactant, water can be repelled from the surface of the work 8. In this way, by preventing the surface of the work 8 from becoming familiar with water, it is possible to prevent water from entering between the work 8 and the water-soluble film 3 in the hydraulic transfer device 20 described below. 8 Water-soluble film 3 on the surface
Can be directly and reliably attached.

Next, the work 8 is provided with a dust removing and degreasing conveyor 5.
7, the water is conveyed from the degreasing chamber 51 to the first washing chamber 52 and the second washing chamber 53, and water is jetted to the surface of the work 8.

Thereafter, the work 8 is transported to the post-processing chamber 54 and the air blow chamber 55, where water droplets remaining on the surface of the work 8 are blown off.

Thereafter, the work 8 is mounted on the pallet mounting jig 1.
Along with the transfer robot 96, the transfer robot 96 transfers the dust from the exit side of the degreasing conveyor 57 onto the common pallet 100 of the common work transport conveyor 40.

FIGS. 1 and 2 show the fitting operation between the work mounting jig 115 and the common pallet 100 in this case.
This will be described below.

As shown in FIGS. 1 and 2, the pallet mounting jig 115 is first tilted so that one side edge 121a of the lower frame 121 faces downward.
0 on the bottom plate 130. Next, the lower frame 121 of the pallet mounting jig 115 is slid toward the claw 101 on the bottom plate 130 of the common pallet 100 so that one side edge 121a of the lower frame 121 is engaged with the claw 101. Next, the pallet mounting jig 115 is flattened to make the common pallet 1
00 on the bottom plate 130. In this case, one side edge 121a of the lower frame 121 is engaged with the claw 101, and the lower frame 121 is held from the side by the side plate 131. Thus, the common pallet for the work mounting jig 115 and the work 8 is provided. Fall from 100 is prevented.

Next, the work 8 is mounted on a pallet mounting jig 115.
At the same time, after passing through the draining / drying furnace 26 by the common work transport conveyor 40, it is transported from the opening 42 to the second floor shown in FIG. Next, the work 8 is the pallet mounting jig 1
15 and removed from the common pallet 100 of the common work transport conveyor 40, and two rows of spare conveyors 24, 2
4 is transferred by the transfer robot 97 to the entrance side.

FIGS. 1 and 2 show the releasing operation of the work mounting jig 115 and the common pallet 100 in this case.
Will be described. As shown in FIGS. 1 and 2, the work mounting jig 115 on the opposite side of the claw 101 is lifted, the pallet mounting jig 115 is inclined, and the lower frame 121 slides on the bottom plate 130 to move the lower frame. 121 one side edge 121
a is disengaged from the claw 101. Next, the entire work mounting jig 115 is pulled up together with the work 8 and transferred to the entrance side of the spare conveyors 24, 24.

Further, the work 8 is a pallet mounting jig 115.
At the same time, two rows of hydraulic transfer devices 20,
The transfer pallet 20 is transferred onto a transfer pallet 9 (see FIG. 7) attached to each of the transport chains 10.

In the hydraulic transfer device 20 shown in FIG. 7, hydraulic transfer is performed on the work 8 placed on the transport chain 10, and thereafter, the work 8 is transported to the film removing device 21. In the film removing device 21, warm water is sprayed onto the surface of the work 8, and the water-soluble film 3 attached to the surface of the work 8 is completely dissolved except for the print pattern 3a. Thus, only the print pattern 3a remains on the surface of the work 8, and the transfer is completed.

Next, the work 8 is transferred from the downstream side of the film removing device 21 by the fitting action of the work mounting jig 115 and the common pallet 100 shown in FIGS.
00 is transferred onto the common pallet 100 of the common work transport conveyor 40. Common work transport conveyor 40
After that, the work 8 transported by the above enters the draining / drying furnace 24, and water droplets are completely removed.

Thereafter, the workpiece 8 is transported to the coating apparatus 22 by the common workpiece transport conveyor 40. The work 8 that has reached the coating device 22 is transferred by the automatic transfer device 65 from the common pallet 100 of the common work transfer conveyor 40 onto the coating pallet 36 of the entrance conveyor 61 (see FIG. 8) together with the pallet mounting jig 115. You.

In this case, in the automatic transfer device 65, the type of the work 8 is identified based on the flag 117 attached to the work attaching jig 115. That is, light is emitted from the light projector 125 a provided in the automatic transfer device 65 to the flag 117, and the light receiver 125
b (see FIG. 3). And the light receiver 125
The shape of the flag is read by a control device (not shown) based on the signal from b, and it is determined that the small flag 117a has the small work 8a mounted thereon and fixed, and the large flag 117b has the large work. 8b is determined to be mounted and fixed.

The work 8 placed on the painting pallet 36 of the entrance conveyor 61 then enters one of the painting booths 31a to 31d according to the shape of the work 8. For example, when it is determined that the work 8 is a work to be painted by the painting booth 31a, the work 8 on the entrance conveyor 61 is transferred together with the painting pallet 36 onto a booth conveyor 63a for the painting booth 31a. The work 8 on the booth conveyor 63a then enters the painting booth 31a, and the painting robot 3
The paint is sprayed from the tip of the arm 33a of 2a. The work 8 having the surface coated with the paint in this manner is then transported together with the paint pallet 36 from the booth conveyor 63a to the outlet conveyor 62. Thereafter, the work 8 is transferred to an automatic transfer device 66 provided on the exit side of the exit conveyor 62.
Thus, the material is transferred from the coating pallet 36 of the exit conveyor 62 to the common pallet of the common work transport conveyor 40 by the above-described operation described with reference to FIGS.

The work 8 transferred from the automatic transfer device 66 of the coating device 22 to the common work transfer device 40 is then heated through the baking / drying furnace 23, and the paint on the surface of the work 8 is dried and solidified. . Next, the work 8 is baked and dried in the oven 2.
3 to the first floor shown in FIG. Thereafter, the work 8 is unloaded from the common work transfer device 40 in the unloading section 95 by the transfer robot 95a, and is transferred from the unloading section 95 to the outside as a product.

On the other hand, the common work transfer device 40 from which the work 8 has been unloaded returns to the side of the dust removing and degreasing device 50,
The above operation is repeated.

According to the present embodiment, the work mounting jig 11
The work 8 is placed and fixed on the upper frame 120 of the common work transfer device 40 with the claw 1 provided on the common pallet 100 of the common work transfer device 40.
01 and the lower frame 121 is
, The work mounting jig 115 can be fixed on the common pallet 100. In addition, the work mounting jig 115 and the common pallet 100 are simply tilted on the common pallet 100.
Can be easily engaged and disengaged.

[0053]

As described above, according to the present invention,
By engaging one side edge of the lower frame with the claw of the pallet and holding the lower frame from the side with the side plate, stably fixing the work mounting jig on which the work is fixed on the bottom plate of the pallet Can be. Further, since the work mounting jig and the pallet can be easily engaged and disengaged only by tilting the work mounting jig on the pallet, it is easy to automatically transfer the work to the pallet. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view showing a fitting structure of a work mounting jig and a common pallet according to the present invention.

FIG. 2 is a side view showing a fitting structure of a work mounting jig and a common pallet.

FIG. 3 is a perspective view showing a work mounting jig.

FIG. 4 is a side view of a work mounting jig.

FIG. 5 is a layout diagram of a second floor portion of the hydraulic transfer printing equipment.

FIG. 6 is a layout diagram of the first floor of a hydraulic transfer printing facility.

FIG. 7 is a schematic side view of a hydraulic transfer device.

FIG. 8 is a side view showing a state inside each coating booth of the coating apparatus.

[Explanation of symbols]

 8 Work 40 Common Work Transport Conveyor 100 Common Pallet 101 Claw 115 Work Mounting Jig 120 Upper Frame 121 Lower Frame 121a One Side Edge 122 Connecting Frame 130 Bottom Plate 131 Side Plate

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-290244 (JP, A) JP-A-63-107558 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B41F 16/00 B44C 1/175 B65C 9/02

Claims (1)

(57) [Claims] 1. A jig for mounting a work comprising an upper frame for mounting and fixing a work, a lower frame having a substantially rectangular outer shape connected to the upper frame via a connecting frame, and provided on a conveyor. And a pallet on which the lower frame is placed. The pallet has a bottom plate, and a side plate provided on a periphery of the bottom plate and holding the lower frame from the side, and one side of the lower frame on the side plate. A work mounting jig and a pallet fitting structure, wherein a claw that engages with an edge is mounted.