JPH02152639A - Straw application device - Google Patents

Abstract

PURPOSE:To make it possible to change working dimensions of a system with a simple manipulation and flexibly after processes, by inputting plural kinds of package informations from a teaching means in advance to store them in a controller and specifying the package information stored according to practical package classification to be input into the processes. CONSTITUTION:Operaters input plural kinds of package informations which are expected to be input for a process by a manipulation of a teaching means 45. These informations area a shape, materials, contents, adhesive position and angle of straws for example and further transfer speed of a conveyor. The input informations are stored in a controller 44 to keep them as proper control-figures. Next, the package informations expected to be input into a process are input and the controller 44 specifies the previously stored proper control-figures according to the informations. When a feed package is changed over, working dimensions of a system can be changed by only an input manipulation of the teaching means 45 and hence flexibility for various processes increases remarkably.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a straw applicator, and particularly to a flexible package (hereinafter simply a package) made of plastic or the like used for containers for beverages such as milk. This invention relates to a straw applicator for attaching a straw to the side surface of a straw.

(Prior art) Generally, in order to drink packaged milk, a straw is used.
Requires. When purchasing this type of milk,
Sometimes people forget to take care of the milk, and in this case, you can't drink the milk without opening the package. Therefore, the first
As shown in Figure 0, a straw is attached to the pan cage.

This is preferable because it prevents the user from forgetting the straw.

By the way, in many cases, an adhesive is used to attach the straw to the puff cage, but it is not desirable to do this manually in terms of cost, and it is necessary to automate this process. For automation, ■ prepare a straw band consisting of a number of continuous straws (see Figure 9), ■ cut this straw band into individual straws, ■ apply adhesive to the buff cage, and ■ cut the straws apart. Equipment is used to perform each step, such as gluing the straw to the package.

Here, known devices for performing the above steps 1 to 3 include, for example, a drum that rotates with a straw band around it, and a cutting device that cuts the straw band by inserting a blade into a recess on the surface of the drum. Some devices are equipped with a blade for holding the separated straws and an arm that holds the separated straws and presses them against the side of the package.The blades are reciprocated while rotating the drum to cut the straw band and release the straws after they have been cut. - It performs a series of operations such as holding and attaching it to a package transported by a conveyor.

(Problem to be Solved by the Invention) However, such conventional devices have a structure in which the above-mentioned operation sequence is set in advance by relays, etc., so there is a problem that it is not possible to respond flexibly to changes in the process. There was a point.

In other words, there are many types of packages for attaching straws, and their shapes and materials are not uniform.Furthermore, the position of attaching straws is naturally limited due to design requirements, so there are various types of packages for each type of package. It is an unavoidable requirement that the straw be installed differently.

In the past, it was necessary to change the operating time of a relay or the like or change the wiring each time a process change was requested, and in other words, it was necessary to deal with it in terms of hardware, making it difficult to use.

Therefore, an object of the present invention is to enable the system operating specifications to be changed with a simple operation, thereby improving the flexibility with respect to process changes.

(Means for Solving the Problems) In order to achieve the above object, the straw applicator according to the present invention has a drum 17 that rotates while holding a straw band on its outer circumference, as shown in FIG. and a cutting part 1 that enters into a cutting recess formed on the outer periphery of the drum 17 and cuts the straw band into individual straws.
5, and an arm portion 16 that holds the separated straw, moves it to the package position, and attaches it to one side of the package.
and a calculating means a for calculating basic control values necessary for the operation of at least the drum 17, the cutting part 15, and the arm part 16, and a plurality of types of objects predicted to be bonded to the straw. The setting means for setting the unique control value for each package information includes a selection means C for selecting the optimal value from among the above-mentioned unique control values according to the type of package to be actually bonded, and the selected unique control value. correction means d for correcting the basic control value based on the value;
and an operating means e for driving and operating at least the drum 17, the cutting section 15, and the arm section 16 in accordance with the corrected basic control values.

(Operation) In the present invention, package information to be actually used is selected from preset information (inherent control values) for each package type, and according to the basic control value corrected based on this panpackage information. , at least drum 17
, the cutting section 15 and the arm section 16 are driven,
A straw is attached to the package.

Therefore, when the pan cage is changed, the optimal unique control value for the pan cage is selected, so that the process can be optimized for the pan cage.

(Example) Hereinafter, the present invention will be explained based on the drawings.

2 to 10 are diagrams showing an embodiment of the straw applicator according to the present invention.

First, the configuration will be explained. FIG. 2 is a front view of the straw ablicade device. In the figure, 1 is a pedestal, 2 is a mechanism provided on the pedestal 1, and 3 is a reel.A straw band 4 is wound around the reel 3. Here, the straw band 4 is made by pasting two long films together and arranging a large number of straws at equal intervals between the films. (See Figure 9). In addition, 5 is a control box containing a microcomputer etc., 6 is a power supply source, and the power supply source 6 includes a power supply, a negative pressure air source, and a pressurized air source. Further, 7 is a real melt applicator, and the hot melt applicator 7 supplies an adhesive (so-called hot melt) that changes from solid to liquid when heated.

8 is a drive source, and the drive source 8 is of PM type (Pera+-
A permanent magnet type stomping motor of the magnetic type or HB type (Hybrid Type-e) is used, and the driving force generated by the driving source 8 is transmitted to the mechanism section 2 via belts 8a and 8b.

FIG. 3 is a top view of the mechanism section 2, which includes a hot melt gun 9 and a straw applicator section 10. In addition, 11 is a conveyor for conveying pan cages such as milk, and this conveyor 11 moves at an approximately constant speed as shown by the arrow (a).
move in the direction. Note that 12 is a hot melt sensor that detects the rear end of the package to detect the real melt injection position, and 13 is a straw adhesive sensor that also detects the rear end of the pan cage to detect the straw adhesive position. .

The real melt gun 9 opens its nozzle in accordance with a predetermined injection command signal and injects liquid hot melt.It has at least two nozzles, and the arrangement angle of the nozzles (the line connecting the two nozzles and the package) (relative angle) is appropriately set corresponding to the angle of adhesion of the straw to the package.

The straw applicator section 10 includes a straw supply section 14,
The straw supplying section 14 has a cutting section 15 and an arm section 16, and a drum 17 that rotates in a fixed direction upon receiving the driving force from the drive source 8, and a pressing plate 19. Figure 4 is an external view of the drum 17.
7 is assembled by fitting a first drum 21 and a second drum 22 of the same shape to a shaft 20.
The second drum 21 and the second drum 22 are separated by a distance. The first drum 21 and the second drum 22 have straw holding recesses 23 that are continuous at equal intervals in the circumferential direction.
A cutting recess 24, which is deeper than the straw holding recess 23, is formed between the straw holding recess 23 and the straw holding recess 23.

Approximately half the circumference of the drum 17 having such a configuration,
A straw band 4 pulled out from a reel 3 (see FIG. 2) is wound around a blade 25 of a cutting unit 15 that reciprocates according to a predetermined cutting command signal.
Each straw is separated by .

The arm portion 16 includes an arm body 26, a shaft 27 whose one end is fixed to the arm body 26, and a bearing 35. The arm body 26 has a clamp piece 28, and the angle of the clamp piece 28 is set to a first angle. and a second angle (see FIG. 9); a template 30 for setting the first angle and the second angle; and a shaft hole 31. A bottle 33 mounted on one end of the crank 32 is rotatably engaged with the crank 32, and the other end of the crank 32 is connected to a driving shaft 34 which rotates under the driving force from the aforementioned driving source 8. Fixed. The shaft 27 also has a rotatable bearing 35.
It is slidably supported on.

That is, when the driving shaft 34 rotates, the shaft hole 31 becomes (
The shaft 2 rotates along the circular locus shown in b).
As a result of the reciprocating movement of the clamp piece 7 within the bearing 35, the clamp piece 28 attached to the tip of the arm body 26 moves while drawing a near-elliptical circular locus shown in (c) in the figure.

Now, by holding the straw at point A of the circulation locus and then adhering it to the pan cage at point B, the straw can be reliably adhered. This is because the locus near point B slightly coincides with the traveling direction of the package, and the straw can continue to be pressed against the package for the time period in which the trajectory coincides with the traveling direction of the package. Moreover, as the pressing continues, a movement that rotates the straw is generated incidentally.

5 to 7 are diagrams showing a specific configuration of the arm portion 16, with FIG. 5 being a partially sectional front view thereof, FIG. 6 being a partially sectional top view thereof, and FIG. 7 being a rear view thereof. In these figures, negative pressure air PI and two systems of pressurized air P2 and Pl are supplied to the arm portion 16 as necessary. Pl acts on the opening 36 of the clamp piece 28 via the communication path 26a formed inside the arm main body 26, and this opening 36
A suction force is generated to hold a straw, for example.

Pg 1P3 is introduced into the low reactuator 29, and the low clear actuator 29 rotates in forward and reverse directions by selectively introducing Pg and P, and moves the clamp piece 28 in the (d) direction or (e) direction. drive to rotate. The rotation of the clamp piece 28 is regulated at a predetermined angle by the template 30.

That is, the maximum rotation angle in the (d) direction (corresponding to the first angle) corresponds to the angle θ1 of the template 30, and the maximum rotation angle in the (e) direction (corresponding to the second angle) corresponds to the angle θ1 of the template 30. are regulated in accordance with the angle θ2. .

FIG. 8 is an electrical and power system diagram. In the same figure,
38 is a sensor group, and the sensor group 38 includes the above-mentioned true melt sensor 12 and straw adhesion sensor 13, as well as an angle sensor 40 that detects the rotation angle of the drive source 8 and two arm angle sensors 41 and 42. It is equipped with One arm angle sensor 41 detects two suitable angles among the rotational angles of the driving shaft 34 for supplying and cutting off the negative pressure Pl to the clamp piece 28, and these suitable angles are preferably such that the clamp piece 28 is It is given from just before reaching the middle point A in FIG. 3 to slightly past the point B. Further, the other arm angle sensor 42 detects two suitable angles for supplying Pt and Pl to the low reactor actuator 29 among the rotational angles of the driving shaft 34, and these suitable angles are as follows.
Even if it is not received in Fig. 3, it is given immediately before reaching point A and after passing point A. In addition, 43 is a cutting sensor,
The cutting sensor 43 is connected to the blade 25 of the cutting section 15.
is pulled out from the cutting recess 24 of the drum 17.

Each sensing signal from the sensor group 38 is input to the control section 44, and the control section 44 executes a predetermined sequence according to these sensing signals. This sequence procedure is stored, for example, in the form of software, and part of the procedure is such that it can be selected from different modes depending on the type of package or conveyor type, and the above modes are set in advance by teaching. It can be freely set based on a command from the means 45.

That is, the control unit 44 includes a microcomputer, and its software functions are limited (including the following).

a) functions as a calculation means for calculating basic control values necessary for operations such as cutting and holding the straw strip and pressing it against the package; b) functions as a calculation means for calculating the basic control values necessary for operations such as cutting and holding the straw strip and pressing it against the package;
(C) Function as a setting means for setting unique control values for each type of package information (for example, shape, material, straw bonding position, etc.) that is expected to be bonded. d) function as a selection means for selecting the optimal one from the above-mentioned inherent control values in response to a package type notification (for example, from the teaching means 45); d) the basic control value based on the selected inherent control value; It functions as a correction means for correcting.

On the other hand, the control unit 44 outputs the injection command signal Si,
A motor drive pulse signal Mp, a suction command signal Sa, a cutting command signal 3c, a clamp piece rotation command signal Ss, etc. are output, and these signals are transmitted to the hot melt gun 9, respectively.
, a valve 47 that disconnects/connects the negative pressure from the drive source 8 and the negative pressure source 46, a valve 49 that switches the pressurized air from the pressurized g4s to two systems p, , p, and a pulp that also switches the air to P4 and P. Added to 50. Note that the drive 'tX8 and the pulp 47, 49, 50 have a function as operating means.

Next, the effect will be explained.

First, the operator operates the teaching means 45 to input information on multiple types of packages that are predicted to be introduced into the process.

This information is information that requires changes in the process, such as the shape and material of the pan cage, the contents (liquid or liquid, etc.), the bonding position and bonding angle of the straw (the second angle), etc. It is raised. Of course, this does not prevent the input of other information. In addition to inputting these information, it is also preferable to input the conveyance speed of the conveyor 11. These input information are taken into the control unit 44,
Saved as a unique control value. Next, the operator enters the package information that is scheduled to go into the process,
The control unit 44 specifies the previously stored unique control value according to this information.

Then, the operator pulls out the straw band 4 wound around the beam 3, loosely fits the straw at the tip of the straw band 4 into the straw holding recess 23 of the drum 17, and rotates the drum 17 slightly. When the device for winding a predetermined amount of the straw belt 4 onto the drum is started and the drum 17 begins to rotate, the straw belt 4 is wound around the drum 17 and is wound by the reciprocating blade 25. A cut is made in the straw belt 4,
Separated into straws. One straw that has advanced to the position of the clamp piece 28 of the arm body 26 is held by the suction force of the clamp piece 28, and the arm body 26 stops with the straw being held by the clamp piece 28.

When the puff cage is conveyed by the hot melt U-reconveyor 11 and detected by the real melt sensor 12, the real melt is injected from the hot melt gun 9 and sprayed onto the puff cage. The injection timing of the real melt gun 9 is controlled by the injection command signal 3i from the control section 44, and this injection command signal St is generated based on the current pan cage information. Therefore, pa.

Hontomelt is sprayed at the optimal timing depending on the type of cage.

When spraying slow true melt, the latter package is conveyor 11.
When the arm body 26 is further advanced, it is detected by the straw adhesion sensor 13, and the arm body 26 resumes its movement from the above-mentioned stop position. This movement is performed along an approximately elliptical circulation trajectory, and the straw held by the clamp piece 28 is pressed against one surface of the package (i.e., the surface on which the real melt is sprayed) near point B on the trajectory. , adhesively engaged. The position of this pressing differs depending on the package, but in this embodiment, the rotation speed of the drive source 8 that drives the arm section 16 is controlled according to the pan cage information in the current process, so it depends on the package. The optimal pressing position can be determined by the position.

As described above, in this embodiment, the teaching means 45
A plurality of types of puff cage information are input in advance and stored in the control unit 44, and the stored package information is specified according to the type of actual package input into the process. When changing, that is, changing the input package, the system operating specifications can be changed by performing an extremely simple operation (for example, an input operation on the teaching means 45). Therefore, flexibility with respect to process changes can be significantly improved.

(Effects) According to the present invention, system specifications can be changed with a simple operation, and flexibility with respect to process changes can be improved.

[Brief explanation of the drawing]

Fig. 1 is a conceptual configuration diagram of the present invention, Figs. 2 to 10 are diagrams showing an embodiment of the straw applicator according to the present invention, Fig. 2 is a front view thereof, and Fig. 3 is its mechanism. Fig. 4 is an external view of the drum, Fig. 5 is a partially sectional front view of the arm, Fig. 6 is a partially sectional top view of the arm, and Fig. 7 is the back of the arm. 8 is a diagram of the electricity and power system, FIG. 9 is a diagram showing the straw, and FIG. 10 is a diagram showing the straw bonded to the package. 15...Cutting section, 16...Arm section, 17...Drum, 44...Control section (calculation means, selection means, correction means), setting means agent

Claims (1)

[Claims] A drum 17 that rotates while holding a straw band on its outer periphery; a cutting section 15 that enters a cutting recess formed on the outer periphery of the drum 17 and cuts the straw band into individual straws; an arm section 16 that holds the separated straw, moves it to a package position, and attaches it to one side of the package; a) basic control values necessary for the operation of at least the drum 17, cutting section 15 and arm section 16; b) a setting means for setting a unique control value for each type of package information predicted to be the target of the straw to be bonded; and c) a setting unit for setting a specific control value for each type of package that is predicted to be the target of the straw to be bonded. d) correcting means for correcting the basic control value based on the selected specific control value; and e) the corrected basic control value. A straw applicator comprising: operating means for driving and operating at least the drum 17, the cutting section 15, and the arm section 16 according to the following.