JPH06271057A - Rotary table device - Google Patents

Abstract

PURPOSE:To supply a work to a subsequent process in a condition where it is fixed on a rotary table without using a positioning jig. CONSTITUTION:A rotary table 4 having plural work positions in a circumferential direction is provided on a frame 3, a box 1 is put on the work position of the rotary table 4 by a box supply mechanism 6, and the box 1 placed on the rotary table 4 by a box fixing mechanism 10 is sucked to the rotary table 4 to be positioned and fixed. The box 1 is placed on the rotary table 4 at a specified position by the box supply mechanism 6 to be supplied to a pad type printer, etc., provided downstream as it is fixed on the specified position by the box fixing mechanism 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary table device suitable for use in feeding a work such as a single box in a post-process such as a printing process in a precisely positioned state.

[0002]

2. Description of the Related Art In general, for cosmetics such as foundations, in the case of primary production based on a production plan in advance, a single box in which a color name or a color symbol corresponding to the color of the foundation to be filled is printed is prepared in advance. It is shipped in a single box. Also, regarding the additional production,
Prepare a common part, for example, a design pattern of one box, one box on which only the product name is printed, and print the color name or color symbol corresponding to the color of the foundation additionally produced on this one box later. Will enable additional production in a short period of time.

When performing post-printing on a single box as described above, an L-shaped positioning jig is mounted on the table of the printing machine, and an operator manually positions the two sides of the single box for positioning. It is pressed against the tool and positioned in the vertical and horizontal directions, and the single box is printed by the printing device.

[0004]

By the way, according to the above-mentioned prior art, since one box is manually supplied one by one onto the table, the work efficiency is low and the productivity can be improved. There is a problem that you cannot do it.

Further, as a means for positioning a single box, L
Although a character-shaped positioning jig is used, since this one box is merely pressed against the positioning jig, the one box is easily separated from the positioning jig at the time of printing to cause positional deviation. In addition, since the individual box is lightweight, it may be displaced due to the wind of the air conditioner or the like. As a result, there is a problem in that printing cannot be performed at a predetermined position of a single box, a printing failure occurs, and the yield is significantly reduced.

Further, when a pad printing machine specializing in fine printing is used as the printing machine, the L-shaped positioning jig interferes, and printing cannot be performed in the vicinity of the positioning jig. There is a problem that the print range is limited.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a rotary table device capable of supplying a work to a subsequent process in a fixed state without using a positioning jig.

[0008]

The structure adopted by the present invention to solve the above-mentioned problems has a pedestal, a rotatably mounted on the pedestal, and a plurality of working positions at equal intervals in the circumferential direction. A rotary table, a drive shaft for intermittently rotating the rotary table at intervals of respective work positions, and a predetermined work position among the respective work positions on the rotary table which is intermittently rotated by the drive shaft. A workpiece supply means for sequentially supplying workpieces, and a plurality of air suction holes formed at each work position of the rotary table, and the workpieces supplied by the workpiece supply means through the air suction holes. Is attached to the rotary table to fix the workpiece.

[0009]

With the above construction, the work is supplied to the predetermined work position among the respective work positions of the rotary table by the work supply means. Then, in this state, the work is sucked through each air suction hole of the work fixing means and fixed on the rotary table in a positioned state, and the rotary table is intermittently rotated by the drive shaft to perform each work. The position moves, and the workpiece is supplied to the subsequent process in the positioned state.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 15 as an example in which a single box as a work is supplied to a pad printing machine by a rotary table device.

In the drawings, reference numeral 1 denotes a single box as a work for individually storing cosmetics (not shown) such as foundation, and the single box 1 is for storing cosmetics for additional production, For example, after a common print portion such as the pattern, product name, and manufacturer of the entire box is printed, it is stuck on the body and crushed flat as shown in FIG. 2 to form a substantially convex shape as a whole. Then, such a single box 1 is post-printed by a pad-type printing machine 14 to be described later in order to clearly indicate the color name, color symbol, etc. of the cosmetic product additionally produced.

Therefore, FIGS. 3 to 15 show a printing line for performing post-printing on the single box 1 described above.

In the drawing, reference numeral 2 denotes a rotary table device arranged at the center of the printing line.
Is roughly composed of a gantry 3, a rotary table 4, a drive shaft 5, a single box feeding mechanism 6, and a single box fixing mechanism 10, which will be described later.

First, 3 is a pedestal that forms the base of the rotary table device 2, and 4 is a disk-shaped rotary table that is rotatably provided on the pedestal 3, and a flange is provided at the center of the rotary table 4. 4A is fixed. Further, the rotary table 4 is divided so as to have five working positions P, P, ... At equal intervals (equal angles) in the circumferential direction, as shown by the alternate long and short dash line in FIG.

Reference numeral 5 denotes a drive shaft fixed to the flange 4A of the rotary table 4, and the lower end side of the drive shaft 5 is connected to a drive motor (not shown) provided in the gantry 3.
Thus, the rotary table 4 is rotationally driven in the direction of the arrow R intermittently by an angle for each work position P, that is, 72 degrees.

Reference numeral 6 denotes a single-box feeding mechanism provided on the outer peripheral side of the rotary table 4 as a work feeding means, and the feeding mechanism 6 is roughly composed of a base 7, a single-box moving unit 8 and a magazine 9 which will be described later. Has been done.

Reference numeral 7 denotes a base provided adjacent to the gantry 3, 8 denotes a single-box moving unit provided on the base 7, and the single-box moving unit 8 is as shown in FIG. A column 8A extending upward from the upper end of the base 7, and the column 8
A moving cylinder 8B located at the upper end side of A and extending in the radial direction of the rotary table 4 and having a tip side extended to the rotary table 4 and a lower end of the moving cylinder 8B depending on the moving cylinder 8B. An elevating cylinder 8C that is reciprocally moved in the direction of arrow AA ', a suction head 8F that is provided at the tip of each rod 8D of the elevating cylinder 8C, and has a concave groove 8E that opens downward at the lower end side. The end side is fixed in the concave groove 8E of the suction head 8F,
The suction cup 8G is generally configured such that its tip end side slightly protrudes from the recessed groove 8E and is opened. The suction cup 8G is connected to a vacuum pump (neither is shown) via a pipe, whereby the one-piece box 1 Is designed to adsorb.

Reference numeral 9 denotes a magazine which is provided below the base end side of the moving cylinder 8B of the one-piece box moving unit 8 and is configured as an upper take-out type. The magazine 9 is located on the base 7 and moves upward and downward. Is formed in a rectangular tube shape and extends inside, and accommodates a plurality of single boxes 1, 1, ... so as to be stacked therein, and a magazine body 9A provided at the lower end side of the magazine body 9A and attached to the tip of a rod 9B. And an adjusting cylinder 9D that supports the individual box 1 from below via a pressing plate 9C. The adjusting cylinder 9D is one of the individual boxes 1 housed in the magazine body 9A. The rod 9B is constantly extended and contracted so that the uppermost individual box 1 is at the same height as the individual box 1 placed on the rotary table 4.

The single-box feeding mechanism 6 constructed as described above moves the single-box 1 in the magazine 9 to the single-box moving unit 8
The suction cup 8G sucks and moves, and is sequentially placed at each work position P on the rotary table 4 that rotates intermittently.

Numeral 10 is a single-box fixing mechanism provided on the rotary table 4 as a work fixing means, and 11, 11, ... Are provided at respective working positions P of the rotary table 4, together with a vacuum box 12 and a mask 13 which will be described later. A plurality of air suction holes constituting the fixing mechanism 10 are shown, and each of the air suction holes 11 is shown.
As shown in FIG. 6, the rotary table 4 is bored so as to pass through the rotary table 4 in the upward and downward directions within a rectangular area centered on each of the work positions P.

As shown in FIG. 7, reference numerals 12, 12, ... Denote five vacuum boxes provided on the lower surface side of the rotary table 4 so as to cover the lower openings of the air suction holes 11. Each vacuum box 12 has a box body 12B that forms a vacuum chamber 12A below each air suction hole 11 for each work position P of the rotary table 4, and extends radially inward from the box body 12B. The rotary table 4 is generally composed of a communication passage 12C that communicates with each other near the center of the rotary table 4,
Each of the communication passages 12C is connected to a vacuum pump via a rotary valve (not shown) or the like. In addition, a check valve (not shown) that defines the vacuum chambers 12A from each other is provided in each of the communication passages 12C, so that even if any of the vacuum chambers 12A is opened to the atmosphere, another check valve is provided. The vacuum state in the vacuum chamber 12A is prevented from weakening.

Reference numerals 13, 13, ... Denote masks provided at the respective working positions P of the rotary table 4 so as to close the upper openings of the air suction holes 11. Each mask 13 has one box 1 A convex-shaped die-cutting hole 13A that is slightly larger than the outer shape is formed. The mask 13 allows each air suction hole 11 to suck the one box 1 at the die-cutting hole 13A, but does not contribute to the suction of the one box 1.
1 is closed so that the single box 1 can be effectively sucked.

Here, the operation of the rotary table device 2 configured as described above will be described with reference to FIGS. 8 to 11.

First, when the rotary table 4 rotates and the empty work position P without the one-piece box 1 is arranged at the supply position of the one-piece box supply mechanism 6, the one-piece box supply mechanism 6 moves the one-piece box moving unit 8
The ascending / descending cylinder 8C is moved by the moving cylinder 8B in the direction of the arrow A'and placed on the magazine 9. And
From this state, as shown by the chain double-dashed line in FIG.
D is extended to move the suction head 8F downward so that the uppermost single box 1 in the magazine body 9A is sucked and sucked by the suction cup 8G.
By reducing D, the single box 1 is removed from the magazine body 9A together with the suction head 8F and moved to the upper side.

At this time, in the magazine 9, a sensor (not shown) detects that one box 1 has been removed from the magazine body 9A, and the rod 9B of the adjusting cylinder 9D is extended to move the inside of the magazine body 9A. By moving each individual box 1 upward by the thickness dimension of the individual box 1,
It is prepared for the next suction by the suction cup 8G.

Next, the single box feeding mechanism 6 moves the single box 1 in the direction of arrow A by the moving cylinder 8B together with the lifting cylinder 8C and the like, and moves the single box 1 above the working position P as shown in FIG. To place. Then, from this state, the single box 1 is moved downward together with the suction head 8F as shown in FIG. 11, and is pressed to a predetermined position on the upper surface of the rotary table 4 by the lower end surface of the suction head 8F. At this time, since each air suction hole 11 of the one-piece box fixing mechanism 10 sucks the outside air through the vacuum chamber 12A of the vacuum box 12, etc., the one-piece box 1 is moved to the working position P of the rotary table 4 by this suction force. Adsorbed. When the suction of the single box 1 onto the rotary table 4 is completed, the suction cup 8G is opened to the atmosphere to stop the suction of the single box 1 by the suction cup 8G, and the suction head 8F is raised. There is.

Thus, the individual box 1 supplied to the working position P of the rotary table 4 is conveyed in the direction of the arrow R while being sucked (fixed) to a predetermined position of the rotary table 4, and pad-type printing described later. It is supplied to the machine 14 and the like.

On the other hand, reference numeral 14 denotes a pad-type printing machine (hereinafter referred to as printing machine 14) which is located on the outer peripheral side of the rotary table 4 and is provided on the downstream side of the single-box supplying mechanism 6.
The reference numeral 4 generally includes a frame 15, an ink tray 16, and a print head 18, which will be described later.

Reference numeral 15 denotes a frame which constitutes the outer shell of the printing press 14. The frame 15 has a base 15A provided so that one end side thereof is close to the gantry 3, and an upwardly extending frame from the other end side of the base 15A. Struts 15B and the struts 15
It is configured to extend from the upper end side of B toward one side, and the tip end side thereof is an overhanging portion 15C that overhangs on the rotary table 4.

Reference numeral 16 denotes an ink tray provided on the base 15A of the frame 15 and filled with the ink K inside,
An intaglio 17 having a groove 17A for forming characters, symbols, etc. on the upper surface side is attached to one end side in the ink tray 16.

Reference numeral 18 denotes a print head provided on the projecting portion 15C of the frame 15. The print head 18 is attached to the projecting portion 15C and has a slide portion 18A which reciprocates in the direction of the arrow BB '. A transfer pad 18 hanged on one end side of the slide portion 18A via a rod 18B so as to be able to move up and down, and formed in a substantially hemispherical shape from silicon rubber or the like.
C, and is provided at the other end side of the slide portion 18A so as to be able to move up and down. When the slide portion 18A moves in the direction of arrow B, the ink K in the ink tray 16 is supplied onto the intaglio plate 17. And the ink plate 18D
It is provided near one side of D so as to be able to move up and down, and scrapes off excess ink K of the ink K supplied onto the intaglio plate 17 when the slide portion 18A moves in the direction of arrow B '. It is generally composed of an ink blade 18E.

Next, the operation of the printing press 14 thus constructed will be described with reference to FIGS. 12 to 15.

First, as shown in the figure, when printing (transfer of ink K) on the single box 1 is completed by the transfer pad 18C of the print head 18, the print head 18 slides on the slide unit 1.
8A, the rotary table 4 is driven to rotate at a predetermined angle (72 degrees) in the arrow R direction at the same time, and a new single box 1 is supplied to the printing position of the printing machine 14. It Further, when the print head 18 is moved, the ink blade 18E is moved to the lower side, and the ink K in the concave groove 17A is left by the ink blade 18E and the excess ink K on the intaglio plate 17 is set in the ink tray 16. It is supposed to be returned.

Then, as shown in FIG. 13, the print head 1
When 8 moves in the direction of the arrow B ', the transfer pad 18C is moved downward and the intaglio 1
7, the ink K in the groove 17A of the intaglio 17 is transferred to the surface of the transfer pad 18C (see FIG. 14).

Next, when the ink K is transferred to the transfer pad 18C, the transfer pad 18C is moved in the arrow B direction by the slide portion 18A as shown in FIG. At this time, since the ink blade 18E is moved upward and the ink plate 18D is moved downward, the ink K in the ink tray 16 is supplied onto the intaglio 17 by the ink plate 18D.

When the transfer of the print head 18 is completed and the transfer pad 18C is placed at a predetermined position on the newly supplied one-piece box 1, the rod 18B is extended and the transfer pad 18C is put in one box 1. Moved to the lower side toward Fig. 1
1 box 1 with the ink K as indicated by the chain double-dashed line in FIG.
Pressed against. As a result, the ink K transferred to the surface of the transfer pad 18C is transferred to the single box 1, and the printing on the single box 1 is completed (see FIG. 12).

A drying device 19 is provided on the outer peripheral side of the rotary table 4 and is provided on the downstream side of the pad-type printing machine 14. The drying device 19 includes the components of the ink K used for printing. Accordingly, warm air blowers, infrared heaters, ultraviolet curing devices, etc. are selectively used. Then, the drying device 19 dries the ink K printed on the single box 1 when the rotary table 4 is rotated and the single box printed by the pad type printing machine 14 is conveyed to the drying position. It is what makes me.

Reference numeral 20 denotes an automatic inspection device provided on the downstream side of the drying device 19, and the automatic inspection device 20 is composed of an inspection camera and the like. Then, the automatic inspection device 20
The printing of the single box 1 placed at the inspection position is compared and inspected by the image processing device, and based on the inspection result, the inspection result (from the output converter (not shown) to the ejection mechanism 24 of the ejection device 21 described later ( It outputs a non-defective product / defective product discrimination signal).

Reference numeral 21 denotes a discharge device provided on the downstream side of the automatic inspection device 20. The discharge device 21 is located in the vicinity of the rotary table 4 and conveys the single box 1 toward the visual inspection process. And a defective product box 23 provided adjacent to the upstream side of the conveyor 22 and a discharging mechanism 24 for sorting and discharging the single box 1 based on the inspection result of the automatic inspection device 20, The discharging mechanism 24 is provided on the upper end side of the support column 24A, and one end side extends on the rotary table 4 and the other end side reaches the defective product input box 23 through the upper part of the conveyor 22 and the moving cylinder 24B. An elevating cylinder 24C that hangs on the lower end side of the cylinder 24B and is moved by the moving cylinder 24B in the direction of the arrow CC ', and a rod 24D of the elevating cylinder 24C.
Suction head 24 mounted on the tip side and provided with a suction cup 24E for sucking the single box 1 on the lower end side
It is composed of F and the like.

In such a discharging device 21, when the one-piece box 1 determined to be non-defective by the automatic inspection device 20 is placed at the discharging position, the suction cup 24E of the discharging mechanism 24 sucks the one-piece box 1. At the same time, the moving cylinder 24B moves in the direction of the arrow C ', and the single box 1 is discharged onto the conveyor 22 and conveyed to the visual inspection process. On the other hand, the automatic inspection device 20 determines that the product is defective. When the single box 1 is placed at the discharge position, the single box 1 is loaded into the defective product loading box 23.

The printing line according to the present embodiment has the above-mentioned structure, and its operation will be described below.

First, when the one-piece box 1 is placed at the working position P of the turntable 4 by the one-piece box supply mechanism 6, the turntable device 2 uses the one-piece box fixing mechanism 10 to move the one-piece box 1 to the working position P. It is attached to and fixed so that it will not be displaced. Then, in this state, the rotary table device 2 intermittently rotates the rotary table 4 in the arrow R direction at a predetermined angle. As a result, the single box 1 is printed by the pad printer 14 at the printing position, and the ink K printed by the drying device 19 is dried at the drying position on the downstream side. Further, as the turntable 4 is rotated and conveyed to the downstream side, the automatic inspection device 20 discriminates the non-defective product from the non-defective product according to the printing state, and the ejecting device 21 determines the non-defective product at the ejection position. The defective products are discharged onto the conveyor 22 for the visual inspection process, and the defective products are loaded into the defective product loading box 23.

Further, the one-piece box 1 placed at each work position P when the rotary table 4 is rotated is the one-piece box fixing mechanism 1
By 0, the rotary table 4 is sucked from the supply position of the supply mechanism 6 to the discharge position of the discharge device 21 to prevent the positional deviation therebetween.

Thus, according to this embodiment, the operator inserts a plurality of individual boxes 1 into the magazine body 9A of the magazine 9 so that the individual boxes 1 can be post-printed with color names, color symbols and the like. Since it can be applied, the post-printing work on the single box 1 can be automated, and the productivity can be greatly improved.

Further, in this embodiment, the one-piece box 1 placed on the rotary table 4 is sucked by the one-box fixing mechanism 10 and fixed at a predetermined position of the rotary table 4, and
When the individual box 1 is sucked into each of the air suction holes 11, the single box 1 is pressed against the rotary table 4 over a wide range by the lower end surface of the suction head 8F so as to surely suck the rotary box 4. When rotating, pad type printing machine 1
It is possible to surely prevent the positional deviation of the single box 1 during printing by 4, etc., and also to prevent the positional deviation due to the wind of the air conditioning equipment or the like.

As a result, it is possible to reliably prevent the occurrence of printing deviation due to the positional deviation of the individual box 1, and it is possible to greatly improve the yield. In addition, the resolution at the time of image processing in the automatic inspection device 20 can be improved, the ability to discriminate between non-defective products and defective products can be greatly improved, and the burden of visual inspection can be greatly reduced.

Furthermore, since it is possible to position the individual box 1 without using the L-shaped positioning jig as described in the prior art, it is possible to print on the individual box 1 without being restricted by the printing range. As a result, it is possible to perform printing over a wide range with a small number of steps, and further improve workability and productivity.

In the above embodiment, the rotary table 4 is provided with five working positions P, P, ... And the rotary table 4 is intermittently rotated at an angle of 72 degrees. However, the present invention is not limited to this. The working position P of the rotary table 4
The number may be 4 or less or 6 or more. In this case, the rotation angle of the rotary table 4 may be appropriately changed according to the number of working positions P.

Further, in the above-described embodiment, the case in which the single box 1 as a work for individually storing cosmetics such as foundations is positioned and conveyed by the rotary table device 2 has been described as an example, but instead of this, for example, A single box containing other cosmetics such as lipstick may be used as the work, or a single box containing food or a work such as a card may be used for positioning and transport.

Further, in the above-described embodiment, the case where the rotary table device 2 is used in the printing line for printing on the single box 1 by the pad type printing machine 14 has been described as an example, but the present invention is not limited to this. For example, printing may be performed on the individual box 1 by another printing machine such as a hot stamp type printing machine, and an engraving device for engraving the individual box 1 and a sticker sticking device for sticking a sticker are available. The rotary table device 2 may be used in another provided production line.

[0051]

As described in detail above, according to the present invention, the rotary table device is provided with a gantry, and a rotary table rotatably provided on the gantry and having a plurality of working positions at equal intervals in the circumferential direction, A drive shaft for intermittently rotating the rotary table at intervals of each work position, a work supply means for sequentially supplying a work to the work position on the rotary table, and a plurality of work shafts for each work position on the rotary table. And a work fixing means for adsorbing and fixing the work supplied by the work supplying means through each of the air suction holes onto the rotary table. The work is supplied to a predetermined work position among the respective work positions of the rotary table by the above, and in this state, the work is sucked through the respective air suction holes of the work fixing means to position the work on the rotary table. Since the rotary table is fixed in this state, by rotating the rotary table by the drive shaft, it is possible to supply the work in a positioned state to, for example, a printing machine or an inspection device provided on the downstream side. It is possible to improve the productivity by automating the supply of the work to the. In addition, it is possible to prevent misalignment of printing due to misalignment of the work, erroneous detection, etc., and improve yield and reliability.

[Brief description of drawings]

FIG. 1 is a plan view showing a single box applied to an embodiment of the present invention.

FIG. 2 is a right side view of the single box shown in FIG.

FIG. 3 is an external perspective view showing a printing line according to an embodiment of the present invention.

4 is an enlarged plan view showing a rotary table and the like in FIG. 3. FIG.

5 is a partially cutaway external view showing an enlarged main part of the rotary table device in FIG. 3. FIG.

6 is an enlarged plan view showing a work position of the rotary table in FIG. 4. FIG.

FIG. 7 is a view of the rotary table from the back side, which is indicated by an arrow V in FIG.
FIG. 7 is a cross-sectional view seen from the direction II-VII.

FIG. 8 is an operation explanatory diagram of the single-box moving mechanism showing a state where the lifting cylinder is arranged on the magazine.

FIG. 9 is an operation explanatory view at the same position as in FIG. 8, showing a state where one box in the magazine is sucked by the suction cup.

FIG. 10 is an operation explanatory diagram at the same position as in FIG. 8 showing a state where one box is moved onto a rotary table by a moving cylinder.

FIG. 11 is an operation explanatory diagram at the same position as in FIG. 8, showing a state where one box sucked by the suction cup is pressed against the rotary table by the lower end surface of the suction head.

FIG. 12 is an operation explanatory diagram of the pad-type printing machine showing a state where ink is transferred to a single box on the rotary table.

FIG. 13 is an operation explanatory diagram at the same position as in FIG. 12, showing a state where the ink in the groove of the intaglio is being transferred to the transfer pad.

FIG. 14 is an operation explanatory diagram at the same position as in FIG. 12, showing a state in which the ink in the groove of the intaglio is transferred to the transfer pad.

FIG. 15 is an operation explanatory diagram at the same position as in FIG. 12, showing a state in which the ink of the transfer pad is being transferred to one box.

[Explanation of symbols]

 1 Single Box (Work) 2 Rotary Table Device 3 Stand 4 Rotary Table 5 Drive Shaft 6 Single Box Supply Mechanism (Work Supply Means) 10 Single Box Fixing Mechanism (Work Fixing Means) 11 Air Suction Hole P Working Position

Claims (1)

[Claims] 1. A gantry, a rotary table rotatably provided on the gantry, and having a plurality of work positions at equal intervals in a circumferential direction, and the rotary table is intermittently rotated at intervals of each work position. A drive shaft, and a work supply means for sequentially supplying a work to a predetermined work position among the respective work positions on the rotary table which is intermittently rotated by the drive shaft,
A plurality of air suction holes are formed at each work position of the rotary table, and the work supplied by the work supply means through each of the air suction holes is adsorbed and fixed on the rotary table. A rotary table device comprising work fixing means.