JPS61152540A - Device for positioning package in carry-out section for packaging machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Purpose of the Invention (Field of Industrial Application) The present invention provides, for example, a packaging machine that is equipped with a heater on a package delivery table that heats and brings into close contact a film folded portion formed on the bottom surface of a package. This invention relates to a device for positioning a packaged product with respect to a five-label printing and pasting machine when a label with the diameter printed on it based on the measured value of the weight of the product is pasted on the packaged product using a label printing and pasting machine. It is something. .

(Prior Art) Conventionally, in this type of packaging machine, for example,
As shown in No. 41304, the label printing and pasting device is attached to the packaged product delivery table, and the label can be pasted in a short time in synchronization with the close contact of the film folding section.

(Problem to be solved by the invention) However, since labels are usually affixed to the corners of items (items stored in trays), when the size of the item changes, the label cannot be affixed to the center of conveyance. The distance of the position also changes,
The mounting position of the label printing and pasting device had to be changed each time. However, changing the mounting position and adjusting the position of the product is very troublesome.

Structure of the Invention (Means for Solving the Problems) The present invention has been made in view of this problem, and as shown in the drawings of the embodiments to be described later, a packaged product unloading table 1 on which a packaged product W is placed is provided. The conveyor 6 is capable of reciprocating in the left and right directions that are substantially perpendicular to the carrying-out direction 7 of the packaged goods W, that is, the front-back direction. An optical MIM switch 29 controls the forward and backward drive of the conveyor 6 by detecting the position of the packaged product W so as to determine the position of the packaged product W, and an optical MIM switch 29 controls the drive of the conveyor 6 in the longitudinal direction by detecting the position of the packaged product W so as to determine the position of the packaged product W in the horizontal direction. It is characterized in that it is provided with a phototube switch 30 that controls left-right direction driving.

(Function) For example, when the package positioning device according to the present invention is used for labeling, when the package W conveyed onto the conveyor 6 activates the phototube switch 29, the conveyor 6 The front-back direction drive is stopped and the front-back direction position of the packaged product W is determined, and the conveyor 6 approaches the label printing and pasting device 2. Next, when the package W activates the phototube switch 30, the conveyor 6 stops driving in the lateral direction, the lateral position of the package W is determined, and the label L is affixed to the package W. Then conveyor 6
is separated from the label printing/applying device 2, the conveyor 6 stops driving in the left-right direction, and the conveyor 6 is driven in the front-back direction again, and the packaged product W is carried out.

(Example) Hereinafter, an example in which the present invention is applied to label pasting will be described with reference to the drawings.

This example is based on the patent application filed in 1986-4 by the applicant.
This is an improved version of the packaging machine described in No. 1304, and as shown in FIGS. 1 and 2, there is a packaged product unloading table 1 equipped with a heater that heats and brings the folded film part formed on the bottom surface of the packaged product into close contact. is provided on the rear side of the machine frame 3, and
A label printing and pasting device 2 for pasting a label on which the weight of the item is printed based on a measured value of the weight of the item onto the packaged item on the carrying out table 1 is attached above the carrying out table 1.

First, the packaged goods unloading table 1 will be described in detail with reference to FIGS. 4 and 5. A pair of support plates 4 are provided on both left and right sides of the rear surface of the machine frame 3 to protrude rearward (downward in FIG. 4, leftward in FIG. 5).
Rails 5 are installed on both front and rear sides between the support plates 4 so as to extend in the left-right direction. A conveyor 6 is supported on both rails 5 via wheels 7, and is movable back and forth in the left-right direction along the rails 5. In this conveyor 6, side frames 9 are fixed to both left and right sides of a base plate 8 to which the wheels 7 are attached, and rollers 10 are tensioned between rods 9a fixed to the rear end sides of the both side frames 9. While being supported via a spring 11, an O-ra 12 is also installed between the front ends of both side frames 9. Both O-La 10
．． A flat belt 13 is wound between the frames 9 and 12, and a heater 1 is installed between the frames 9 on both sides inside the flat belt 13.
4 is installed. A carry-out electric motor 15 is attached to the lower side of the base plate 8, and its output pulley 15a is interlocked with the roller 12 via a round belt 16, an intermediate pulley 17, and a round belt 18.

The flat belt 13 is driven by the electric motor 15 to rotate in the direction of arrow F between the O-rollers 12 and 10.

Further, a reciprocating electric motor 19 is attached to the lower side of the one support plate 4, and a reciprocating electric motor 19 is installed between its output sprocket 19a and conduction sprockets 20 and 21 attached to both left and right sides of the rear rail 5. A chain 22 is wrapped around it.

This chain 22 is connected to the lower side of the base plate 8 of the conveyor 6 via a connecting part 23. And conveyor 6
is adapted to reciprocate in the left-right direction along the rail 5 by the drive of the electric motor 19.

An auxiliary roller 24 and an auxiliary roller 25 are installed between the rear end and the front end of both support plates 4, respectively, so as to sandwich the conveyor 6. A round belt 28 is stretched between the auxiliary rollers 24 and 25 via a conduction pulley 26 connected coaxially with the roller 17 and a conduction pulley 27 attached to the support plate 4. And this round belt 2
8 rotates in the direction of arrow F in the same way as the flat belt 13 by driving the electric motor 15 for carrying out, and both auxiliary rollers 24
, 25 rotate in the same direction as the flat belt 13.

A light projecting tube 29a and a light receiving tube 29 are provided on the rear end side of both support plates 4.
A phototube switch 29 for controlling the longitudinal position consisting of a light emitting tube 30a and a light receiving tube 30b is disposed at a substantially intermediate position between the support plates 4. It is arranged. Then, as shown in FIG. 6, when the package W is placed on the flat belt 13 of the conveyor 6 at the package carry-out position P and is carried out,
When this packaged product W turns off the phototube switch 29, the electric motor 15 for carrying out stops, the flat belt 13 and both auxiliary rollers 24 and 25 stop rotating, and the position of the packaged product W in the front and back direction is determined. At the same time, the reciprocating electric motor 19 is driven, and the conveyor 6 moves to one side on the rail 5. Next, as shown in FIG. 7, when the packaged product W turns off the phototube switch 30, this reciprocating electric motor 19 also stops and the conveyor 6 stops at the labeling position R, and the packaged product W is positioned in the left-right direction. can also be determined.

On the other hand, the label printing and pasting device 2 is a conventionally known device, and normally, as shown in FIG. , is disposed above one side of the packaged goods unloading table 1, and its position can be adjusted arbitrarily.

The conveyor 6 is located at the packaged product delivery position P and the label pasting position R.
It is designed to move toward and away from the label printing and pasting device 2 by reciprocating between the two. When the conveyor 6 is in the label pasting position R, the label outlet 2a of the label printing and pasting device 2 and the position A at one corner of the packaged product W correspond to each other.

Note that the packaging machines shown in Figs.
Similar to the packaging machine described in No. 41304, the weight of the product is measured by the weighing device 52 in the product supply device 51 provided on the front side of the machine frame 3, and the measured value data is sent to the label printing and pasting device 2. It is now output to .

Now, for example, when packaging fish in tray W1 and attaching a label to this packaged product W, the label is usually placed on the sixth
It is pasted at position A as shown in the figure. Thereafter, the article is placed on the article supply device 51 so that the packaged article W is carried out onto the conveyor 6 at the packaged article carrying-out position P in the state shown in FIG. Then, when the packaged product W carried out onto the conveyor 6 turns off the phototube switch 29, the forward and backward position of the packaged product W is determined, and the conveyor 6 moves from the packaged product delivery position P to the label pasting position R. and approaches the label printing and pasting device 2. Next, as shown in FIG. 7, when the packaged product W turns off the phototube switch 30, the left and right sides of the packaged product W correspond to the eight positions directly below the label feeding port 2a of the label printing and applicator 2. The directional position is also determined, and the label L is fed out from this feeding opening 2a and affixed at these eight positions. Thereafter, as shown in FIG. 8, the conveyor 6 moves in the opposite direction on the rail 5, separates from the label printing and applicator 2, and stops when it reaches the packaging product delivery position P, and the flat belt 1
3 and both auxiliary rollers 24 and 25 rotate again to remove the packaged product W.
is carried out.

On the other hand, as shown in FIG.
Sometimes I paste. Therefore, in this case, the product is placed on the product supply device 51 so that the package W is carried out onto the conveyor 6 at the package delivery position P in the state shown in FIG. 9, and the feeding direction of the label L is reversed. Make it. In this way, it becomes possible to attach the label L to the A and B positions of the packaged product W.

Even when the sizes of the packages W are different as shown in FIGS. 10 and 11, the packages W stop when both phototube switches 29 and 30 are turned off, as in the case described above. The A position always corresponds to the position immediately below the label outlet 2a of the label printing and pasting device 2. Therefore, regardless of the size of the package W, the label L can be attached to the A and B positions of the package W.

Roughly speaking, as shown in FIGS. 12 and 13, if the phototube switch 29 is made movable so that it can take the position shown by the solid line and the position shown by the imaginary line, labels can be placed on the four corners of the packaged product W. You can paste L. That is, when the phototube switch 29 is in the position shown by the solid line, the product is loaded into the product supply device 51 so that the package W is delivered onto the conveyor 6 at the package delivery position P in the state shown in FIG. When the packaged product W on the conveyor 6 passes this phototube switch 29, the rotation of the conveyor 6 stops, the conveyor 6 approaches the label printing and pasting device 2, and this packaged product W turns off the phototube switch 30. By the way, the movement of the conveyor 6 is stopped.

In this way, the label L can be attached to the package W at the C position. Further, as shown in FIG. 13, by reversing the feeding direction of the packaged product W and the feeding direction of the label L, the label L can also be attached to the D position of the packaged product W. On the other hand, when the phototube switch 29 is in the position shown by the imaginary line,
As in the case described above, the label L can be affixed to both the A and B positions of the packaged product W.

The packaged product positioning device according to the present invention can be used not only for the above-mentioned label pasting, but also for various operations requiring the positioning of a packaged product, such as when directly printing on a packaged product.

Effects of the Invention In short, when the present invention is used for labeling, for example, the phototube switch 29 for controlling the forward/backward position and the phototube switch 3° for controlling the horizontal position for detecting the position of the packaged product W on the conveyor 6. By controlling the drive of the conveyor 6 in the front, rear, right and left directions, the label sticking position of the packaged product W to the label printing and pasting device 2 can always be kept constant, so even if the size of the packaged product W changes, the There is no need to change the mounting position of the label printing and pasting device 2 every time (this helps improve work efficiency. Also, since only the phototube switches 29 and 30 are used to detect the position of the packaged product W, Misalignment of the package W due to contact with limit switches, stoppers, etc. is completely eliminated, and the label L can be correctly affixed at the correct position.

[Brief explanation of the drawing]

FIG. 1 is an enlarged partially cutaway plan view showing a package positioning table according to an embodiment of the present invention, FIG. 5 is an enlarged cross-sectional view, and FIGS. Figure 9 is an explanatory diagram of the effect when the label attachment position is changed, Figures 10 and 11 are explanatory diagrams of the effect when the size of the packaged product is changed, and Figures 12 and 13. FIG. 6 is an explanatory view of the operation of another embodiment in which the mounting position of the phototube switch for controlling the longitudinal position is changed. Packaged product unloading table 1, label printing and pasting device 2, label feeding port 2
a rule 5, conveyor 6, flat belt 13, heater 14,
Unloading electric motor 15, reciprocating electric motor 19, phototube switch 29.30° weighing device 52, packaging w1 label L0 Patent applicant Fujipack System Co., Ltd. Agent Patent attorney On 1) Hironobu Figure 1 A No. 6 Figure 8 Figure 9 @ Figure 10 J! r12 figure

Claims (1)

[Claims] 1. The conveyor (6) of the packaged product unloading table (1) on which the packaged product (W) is placed is capable of reciprocating in the left and right direction, which is approximately perpendicular to the direction in which the packaged product (W) is carried out, that is, the front-rear direction. The carry-out table (1) controls the longitudinal drive of the conveyor (6) by detecting the position of the packaged product (W) so as to determine the longitudinal position of the packaged product (W) conveyed onto the conveyor (6). Phototube switch (29) and this packaged product (
Packaging in the unloading section of a packaging machine, characterized in that a phototube switch (30) is provided to control the horizontal drive of the conveyor (6) by detecting the position of the packaged product (W) so as to determine the horizontal position of the packaging product (W). Product positioning device.