JP2003240523A - Direction detection method for rodlike body and apparatus and method for filling using the same as well as apparatus and method for forming and filling flexible package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a direction detection method used when a diameter of a rodlike body required for being arranged in a precise direction with satisfactory accuracy such as a discharge pipe in a forming and filling apparatus for flexible package is decided easily and with satisfactory reproducibility, and to provide a filling apparatus and a filling method using the direction detection method, as well as to provide the forming and filling apparatus and a forming and filling method. <P>SOLUTION: In the direction detection method for the rodlike body, the outer circumferential face of the rodlike body is irradiated with light which becomes a shape having at least a linear part when irradiated perpendicularly to a plane from at least two directions on one side of the rodlike body, a direction of the linear part on the outer circumferential face of an irradiated light is compared with the direction of the rodlike body, and the direction of the rodlike body is detected. As the light, a laser beam 31, a laser beam 31" and the like can be used. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects a direction of a rod-shaped body such as a discharge pipe provided in a bag-making filling device for filling a bag with contents by heat-sealing a film. On how to do.

[0002]

2. Description of the Related Art In some instant foods, seasonings such as soy sauce and sauce are hermetically sealed and attached in a bag formed of a film. In order to manufacture a bag in which the contents are filled in this way, a bag-making filling device is usually used which fills the bag with the contents while forming the film into a bag shape.

As shown in FIG. 4 (a) and FIG. 4 (b), the bag-making and filling device has an end in the width direction on the non-closed side of the film 51 folded in the width direction. The pair of vertical heat-sealing rolls 52, which is a tubular film 51b obtained by heat-sealing the part (that is, the free end portion) 51a (hereinafter, also referred to as vertical heat-sealing), and the obtained tubular film 51b. What is provided with a pair of horizontal heat seal rolls 53 that are heat-sealed across the width direction (hereinafter also referred to as horizontal heat seal) is generally used. And such a bag-making filling apparatus is usually provided so that the discharge port 54a is located between the vertical heat-sealing roll 52 and the horizontal heat-sealing roll 53, and the horizontal part 54b and the vertical part 54c. The filling device is provided with the L-shaped discharge pipe 54. With such a discharge pipe 54, the contents are filled in a bottomed tubular film formed into a tubular shape by the vertical heat-sealing roll 52 and having a portion to be the bottom portion 51c of the bag formed by the horizontal heat-sealing roll 53. You can

The vertical heat-sealing roll 52 of this example is formed with a roll main body 62 having a heating means (not shown) such as a heater therein, and on the outer peripheral surface of the roll main body 62 along the circumferential direction thereof. It is configured by including two rolls 61 having a vertical heat seal member 63 having a convex shape.
Then, by rotating the two rolls 61 about the shaft 61a in the directions of the arrows in the drawing, the film 51 is sandwiched between the outer peripheral surfaces of the vertical heat-sealing members 63 to heat and pressurize, thereby continuously heating in the vertical direction. It can be sealed. The horizontal heat-sealing roll 53 has a roll main body 64 provided with a heating unit (not shown) such as a heater therein, and a convex shape formed on the outer peripheral surface of the roll main body 64 along the length direction thereof. 4 horizontal heat seal members 6
It is configured to include two rolls 66 each having the number 5 and 5. Then, by rotating the two rolls 66 in the directions of the arrows about the shafts 66a respectively, the cylindrical film 51 is formed between the outer peripheral surfaces of the lateral heat seal members 65 facing each other.
It is configured such that the heat can be applied while sandwiching b, and the heat can be laterally sealed at regular intervals in the length direction of the tubular film 51b.

And, these vertical heat seal rolls 52
And the horizontal heat seal roll 53 are operated in this manner, and the contents are discharged from the discharge port 54a of the discharge pipe 54, whereby a continuous body of a large number of bags filled with the contents is obtained. By separating the body into individual bags, it is possible to obtain bags in which the contents are sealed and filled.

In such a bag-making and filling apparatus, the discharge pipe 54 usually needs to be cleaned and sterilized with chemicals before and after the bag-making and filling operation as required. Therefore,
In the bag-making and filling apparatus, the connection portion 55 of the discharge pipe 54 with the apparatus body is required to have a structure that can be easily attached and detached. On the other hand, in order to prevent air from being mixed into the bag from the removable connecting portion 55 at the time of filling the contents, the connecting portion 55 is also required to be airtight. Therefore, a joint provided with an elastic body such as a rubber packing that can be easily attached and detached and can maintain airtightness is often used for such a connecting portion 55.

[0007]

However, when the connecting portion of the discharge pipe in the bag making and filling device is provided with an elastic body such as rubber packing, the connecting portion has a certain degree of freedom, and therefore the horizontal portion of the discharge pipe is provided. Is horizontal, and
There was a problem that it was difficult to attach with good reproducibility every time so that the vertical part was vertical. If the discharge pipe in such a bag-making filling device is attached in a state where the vertical portion of the bag is not vertically inclined but is obliquely attached, the discharge pipe excessively contacts the film and the film meanders or twists. And if seal wrinkles occur,
The free end of the film in the width direction may be sealed in a displaced state, so-called misalignment may occur,
The bag-making filling work could not be performed stably.

Therefore, in practice, the discharge pipe is once attached, the bag-making filling device is operated, and while visually confirming the running state of the film, the direction of the discharge pipe is manually moved little by little. The direction of the vertical portion of the discharge pipe was finely adjusted so as to prevent such a seal failure.

However, in order to visually check and adjust the direction of the discharge pipe by hand, it is necessary for the operator to have experience, and the bag making and filling device is once operated and then finely adjusted. Therefore, in addition to the time loss at the start of the work, wasteful materials are also generated, and there is a problem that the efficiency of the bag making and filling work is poor. Further, when it is necessary to maintain the bag making and filling apparatus in a sterile state depending on the type of contents, after operating the bag making and filling apparatus, while maintaining the aseptic state, such a manual operation of the discharge pipe is performed. It was difficult to fine-tune the direction. Further, a method of finely adjusting the direction of the discharge pipe by using, for example, a sterile glove can be considered, but it is almost impossible to make such a fine adjustment with the sterile glove fitted.

The present invention has been made in view of the above circumstances, and can easily and reproducibly detect the direction of a rod-shaped body that needs to be accurately arranged in a precise direction, such as a discharge pipe in a bag making and filling device. An object of the present invention is to provide a detection method, a filling device using this method, a filling method, a bag-making filling device, and a bag-making filling method.

[0011]

A direction detecting method according to the present invention is directed to an outer peripheral surface of a rod-shaped body from at least two directions on one side of the rod-shaped body, and at least a straight line when the plane is irradiated. It is possible to detect the direction of the rod-shaped body by irradiating light having a shape having a portion and comparing the direction of the linear portion on the outer peripheral surface of the irradiated light with the direction of the rod-shaped body. Characterize. The light is preferably laser light. Alternatively, the light may be reflected by a mirror to change its direction and irradiate the outer peripheral surface. Further, the direction of the linear portion on the outer peripheral surface may be compared with the direction of the rod-shaped body through the mirror by displaying the irradiation state on the outer peripheral surface on a mirror. Further, it is preferable that at least two reference lines are provided on the outer peripheral surface of the rod-shaped body, and the light is applied to the reference lines from the two directions.

The filling method of the present invention is a filling method having a step of filling contents from a discharge pipe into a package, which is at least one side of the discharge pipe with respect to the outer peripheral surface of the discharge pipe. From two directions, light that has a shape having at least a straight line portion when irradiated perpendicularly to a plane is radiated, and the direction of the straight line portion on the outer peripheral surface of the radiated light and the direction of the discharge pipe are defined. The method further includes a step of detecting the direction of the discharge pipe by comparison. The bag-making filling method of the present invention comprises a step of heat-sealing a tubular film in the width direction to form a bottomed tubular film, and a step of filling the bottomed tubular film with contents from a discharge pipe. A bag-making filling method having and, with respect to the outer peripheral surface of the discharge pipe,
From at least two directions on one side of the discharge pipe,
By irradiating light having a shape having at least a linear portion when irradiated perpendicularly to a plane, by comparing the direction of the linear portion on the outer peripheral surface of the irradiated light with the direction of the discharge pipe, The method further comprises the step of detecting the direction of the discharge pipe.

The filling device of the present invention is a filling device having a discharge pipe for filling the contents in a package, and at least 2 in one side of the discharge pipe with respect to the outer peripheral surface of the discharge pipe. It is characterized by further comprising a direction detecting device capable of detecting the direction of the discharge pipe by irradiating light having a shape having at least a straight line portion when irradiated perpendicularly to the plane from the direction. The bag-making filling device of the present invention is a heat-sealing device for heat-sealing a tubular film in the width direction to form a bottomed tubular film, and a discharge pipe for filling the bottomed tubular film with contents. A bag making and filling device comprising: a shape having at least a straight line portion when irradiated onto the outer peripheral surface of the discharge pipe perpendicularly to a plane from at least two directions on one side of the discharge pipe. It is characterized by further comprising a direction detection device capable of detecting the direction of the discharge pipe by irradiating the following light. As this bag-making filling device, a device used in a sterile space is particularly suitable.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Regarding the direction detecting method of the present invention, the bag making and filling device of the present invention equipped with a direction detecting device is taken as an example, and the direction of the discharge pipe in this bag making and filling device is determined to be the vertical direction. Will be described in detail. [Bag-Making and Filling Device] FIGS. 1A and 1B schematically show the essential parts of the bag-making and filling device of the present embodiment. It has a heat seal device equipped with the horizontal heat seal roll 13.

Here, the vertical heat-sealing roll 12 heat-seals the widthwise end of the film 11 folded in two in the widthwise direction on the non-closed side, that is, the free end 11a to form the tubular film 11b. The roll body 2 is provided with a heating means (not shown) such as a heater therein.
The roll main body 22 is provided with two rolls 21 provided with a vertical heat seal member 23 formed on the outer peripheral surface of the roll main body 22 along the circumferential direction thereof. Then, by rotating the two rolls 21 around the shaft 21a in the directions of the arrows in the drawing, the film 11 is sandwiched between the outer peripheral surfaces of the vertical heat-sealing members 23 to heat and pressurize them to form a continuous tubular shape. It forms a film.

The horizontal heat seal roll 13 is a tubular film 11b formed by the vertical heat seal roll 12.
Is to be heat-sealed in the width direction thereof, and has a roll main body 24 provided therein with a heating means (not shown) such as a heater, and is formed on the outer peripheral surface of the roll main body 24 along its length direction. It comprises two rolls 26 provided with four convex lateral heat seal members 25. Then, by rotating the two rolls 26 around the shafts 26a in the directions of the arrows, the tubular film 11b is sandwiched between the outer peripheral surfaces of the lateral heat seal members 25 facing each other, and the tubular film 11b is heated and pressed to form a tubular film. 11b is heat-sealed laterally at regular intervals in the length direction to form a bottomed tubular film.

Further, this bag-making filling device is a bottomed tubular film 1 formed by a heat-sealing device having a vertical heat-sealing roll 12 and a horizontal heat-sealing roll 13.
Discharge pipe 1 made of metal for discharging and filling contents 1d
It is equipped with 4. In this example, as shown in an enlarged view in FIG. 2, the discharge pipe 14 is formed by bending a metal tubular body into an L shape, and extends in a substantially horizontal direction in the drawing.
5 and a vertical portion 16 that hangs continuously from the above. Horizontal part 1 in this discharge pipe 14
The end portion 15a on the fifth side is connected via a connecting portion 18 to a pipe 17 connected to a content tank (not shown) in which the content to be filled is stored. Where this connection 1
Reference numeral 8 denotes a joint provided with an elastic body such as a rubber packing, so that the discharge pipe 14 can be easily attached and detached and has airtightness, and the discharge pipe 14 is attached to the connecting portion 18. In this case, it has a certain degree of freedom. On the other hand, a discharge port 14a is formed near the end 16a of the discharge pipe 14 on the vertical part 16 side, and the discharge port 14a is arranged between the vertical heat seal roll 12 and the horizontal heat seal roll 13. Therefore, the contents from the contents tank can be discharged from here to be filled in the bottomed tubular film 11d.

The vertical portion 1 of the discharge pipe 14 of this example
On the outer peripheral surface of 6, two linear reference lines that are substantially parallel to each other along the length direction of the vertical portion 16, that is,
A first reference line 19a and a second reference line 19b are formed. And in this example, these reference lines 19
a and 19b are formed by concave grooves.

The bag-making and filling device is equipped with a direction detecting device (not shown in FIG. 1) so that the vertical portion 16 of the discharge pipe 14 can be accurately attached in the vertical direction. As shown in FIG. 3, this direction detecting device includes one light source device 32 capable of emitting band-shaped laser beams 31 and 31 ′ having a constant width in the vertical direction. Here, when the belt-shaped laser light 31, 31 ′ is irradiated perpendicularly to the plane, a slender rectangle is formed in the vertical direction. Here, it is necessary to irradiate the laser light 31, 31 ′ having a shape such as a rectangle having a straight line portion (one long side in this example) when radiated perpendicularly to a plane. . The light source device 32 is provided so as to be horizontally rotatable around a shaft body 32a arranged in the vertical direction. That is, by appropriately rotating the light source device 32, the direction of the band-shaped laser light 31, 31 'can be adjusted to any desired direction.

Further, the direction detecting device 30 of this example is shown in FIG.
As shown in (b), a first mirror 33 and a second mirror 34 are provided, and as will be described later in detail, the laser light 31 ′ emitted from the light source device 32 is reflected by the first mirror 33. Mirror surface 33
The light is reflected by a to change its direction, and the discharge pipe 14
By irradiating the second reference line 19b on the outer peripheral surface of the vertical portion 16 of the vertical portion 16 or by reflecting the irradiation state of the laser light 31 on the outer peripheral surface on the mirror surface 34a of the second mirror 34, the operator can It is possible to confirm the irradiation state through the mirror 34.

Next, a method for detecting the direction of the vertical portion 16 of the discharge pipe 14 using such a direction detecting device 30 will be specifically described. First, the direction detection device 30
Set. That is, as shown in FIG. 3, when the vertical portion 16 of the discharge pipe 14 is accurately attached in a predetermined direction so that the vertical portion 16 faces the vertical direction, two reference lines of the discharge pipe 14, That is, with respect to the first reference line 19a and the second reference line 19b, belt-shaped laser beams 31 and 3 are formed in the vertical direction from two specific directions.
When each of the laser beams 31 is irradiated with 1 ", the straight line portion of one laser beam 31 corresponds to the corresponding first reference line 19a and the vertical portion 1a.
On the outer peripheral surface of 6, the laser light 31 ″ has the same direction and overlaps, and the other laser light 31 ″ is the mirror surface 33 a of the first mirror 33.
After being reflected on the second reference line 19
The direction detection device 30 is set so that b and the outer peripheral surface of the vertical portion 16 have the same direction and overlap with each other.

Specifically, the vertical portion 16 of the discharge pipe 14
After being correctly attached without any displacement so that they face the vertical direction, the light source device 32 of the direction detecting device 30 and the first mirror 33 are attached.
And the second mirror 34 are arranged so as to have a specific relative positional relationship as shown in FIG. Then, in the case of such an arrangement, the linear portion of the laser beam indicated by reference numeral 31 is the first on the outer peripheral surface of the vertical portion 16 of the discharge pipe 14.
Make sure that the reference line 19a and the reference line 19a are in the same direction and exactly match each other. The operator who confirms this is in the position indicated by reference numeral 40. Then, the light source device 32 of the direction detecting device 30 is further rotated by the angle α to generate the reference numeral
The laser light indicated by 1'is emitted and the laser light 3
After 1 ′ is reflected by the mirror surface 33a of the first mirror 33, the reflected laser beam 31 ″ has a straight portion on the outer peripheral surface of the vertical portion 16 of the discharge pipe 14 in the same direction as the second reference line 19b. Make sure that they match exactly.Although the operator who confirms this may move and check as appropriate,
It is also possible to confirm the irradiation state of the laser beam 31 ″ on the outer peripheral surface on the mirror surface 34 a of the second mirror 34 while still at the position indicated by the reference numeral 40, through the second mirror 34. In this way, when the laser beams 31 and 31 ″ from the two specific directions are overlapped and correspond to the corresponding reference lines, that is, the first reference line 19 a and the second reference line 19 b, respectively, The direction detection device 30 is set so that the vertical portion 16 of the discharge pipe 14 is correctly attached in the vertical direction.

In this way, first, the direction detecting device 3
If the setting of 0 is made, the direction detecting device 30 is used to easily detect the direction of the vertical portion 16 when the discharge pipe 14 is attached in the procedure described below,
This can be the vertical direction. First, a discharge pipe 14 that has been appropriately washed and sterilized is prepared, and the end portion 15a of the discharge pipe 14 on the horizontal portion 15 side is connected to the connecting portion 1.
Connected to the pipe 17 via 8. The connection here does not need to be performed accurately. That is, since the connecting portion 18 is configured to have a joint having an elastic body such as a rubber packing as described above and has a structure having a certain degree of freedom, the connecting portion 18 is connected within the range of the degree of freedom. The vertical portion 16 does not need to be vertical at this stage.

Then, the direction detecting device 30 is set as described above, and the laser beam 31 is irradiated toward the outer peripheral surface of the discharge pipe 31. Then, the straight line portion of the irradiated laser beam 31 on the outer peripheral surface of the discharge pipe 31 is compared with the first reference line 19a. Here, when the straight line portion of the laser beam 31 and the first reference line 19a do not overlap with each other and are parallel to each other with a space or intersect with each other, they are accurately overlapped with each other. The operator confirms the irradiation state so that the discharge pipe 14
Finely adjust the direction of by hand. The confirmation work here is performed by the operator at the position of reference numeral 40 or the like.

Then, the light source device 32 is rotated by a preset angle α to irradiate the laser light 31 ′ onto the mirror surface 33 a of the first mirror 33. And this first
The second reference line 19b is compared with the straight line portion of the laser beam 33 ″ which is reflected by the mirror 33 and is irradiated on the outer peripheral surface of the vertical portion 16 of the discharge pipe 31. Here, on the outer peripheral surface of the vertical portion 16. , If the straight part of the laser beam 31 ″ and the second reference line 19b do not overlap each other and are parallel to each other with a space or intersect, they accurately overlap each other. The operator manually finely adjusts the direction of the discharge pipe 14 while checking the irradiation state so that they coincide with each other. Here, when the operator confirms the irradiation state, if the operator is at the position of reference numeral 40, the second reference line 19b cannot be seen directly and the irradiation state cannot be confirmed. By using the second mirror 34 and passing through the second mirror 34, it is possible to compare the second reference line 19b with the linear portion of the laser beam 31 ″ while staying at the position of the reference numeral 40. In this way Laser light 31, 3 from two directions
Each linear portion of 1 "corresponds to the corresponding first reference line 19
The discharge pipe 14 can be attached so that the vertical portion 16 of the discharge pipe 14 is accurately in the vertical direction by adjusting so as to overlap with a and the second reference line 19b.

As described above, the laser light 31, 31 'which has a shape having at least a straight line portion when irradiated onto the discharge pipe 14 perpendicularly to the plane from two directions on one side of the discharge pipe 14 is provided. Direction detector 3 that can irradiate
According to the bag-making filling device including 0, the laser beam 31, 31 ′ is irradiated to the outer peripheral surface of the discharge pipe 14 before the bag-making filling device is operated, and the laser light 31, 31 ′ is irradiated on the outer peripheral surface of the irradiated light. By comparing the direction of the straight line portion with the direction of the discharge pipe 14, the direction of the discharge pipe 14 can be detected, and the direction can be finely adjusted and accurately attached in the predetermined direction. Therefore, as in the conventional art, once the discharge pipe 14 is once attached, the bag-making filling device is operated, and while visually confirming the running state of the film 11, the direction of the discharge pipe 14 is manually moved little by little. This eliminates the need for labor, and eliminates time loss at the start of work and wasted materials. Further, the obtained bag also has an excellent appearance without defects such as seal wrinkles and ear slip. That is, according to the bag-making and filling device including the direction detecting device 30 as described above, the bag-making and filling work can be stably performed, and the bag having an excellent appearance can be produced very efficiently.

Further, in such a method, the discharge pipe 1
In particular, there is no sufficient space around the discharge pipe 14 because the laser beams 31 and 31 ′ may be irradiated from one side of 4, and the laser beams 31 and 31 ′ may be irradiated from only one side. Can also decide its direction.

Further, according to such a bag making and filling device,
For example, in the case of filling a drug, the bag-making filling device needs to be used in an aseptic state, and even if it is difficult to finely adjust the discharge pipe 14 after once operating the drug filling device, a sterile glove is used. It is preferable that the discharge pipe 14 can be surely attached in the correct direction before the bag making and filling device is operated without using such a device.

In the above description, the vertical portion 16
Although the direction detection method when determining the direction of the discharge pipe 14 so that the vertical portion 16 of the discharge pipe 14 having the vertical direction is described, the direction is not limited to the vertical direction, and the direction is not limited to the vertical direction. The direction may have a certain angle. The discharge pipe 14 does not have to be L-shaped. In addition, the reference line 19 formed on the outer peripheral surface thereof
The shapes of a and 19b are not limited to the concave stripes, and may be lines or convex stripes formed by coloring with ink or the like, and need not necessarily be formed. However, the reference line 19
It is preferable that a and 19b are formed because it is possible to easily compare the direction of the straight line portion in the irradiated light with the direction of the vertical portion 16 of the discharge pipe 14 that is the direction detection target. Further, as another example of the reference lines 19a and 19b, the reference line 1
It may be formed so that the light reflection state is different from the portions other than 9a and 19b. For example, in the outer peripheral surface of the discharge pipe 14, if the portions of the reference lines 19a and 19b are diffuse reflection surfaces and the other portions are glossy surfaces, for example, the discharge pipe 14 is at the back of the bag-making filling device. Even in the case of being placed in a dark place, by checking whether the light irradiation state is irregular reflection, the laser light 31, 3
1 "is preferable because it can be confirmed whether or not 1" overlaps the reference lines 19a and 19b and coincides with each other.

The type of light to be emitted is also the laser light 3
It is not limited to 1, 31 ", and ordinary visible light can also be used. Further, the direction of light irradiation is not limited to two directions as long as it is from one side of the tubular body such as the discharge pipe 14. For example, the number of directions may be three or more depending on the form of the discharge pipe 14. In addition, the reference line 1 may be set accordingly.
The number of 9a and 19b may be three or more.

Further, the light such as the laser light 31, 31 "is
As long as the light has a shape having at least a linear portion when irradiated perpendicularly to a plane, it is not limited to a band-shaped one, that is, a rectangular shape when irradiated perpendicularly to a plane,
It may have any shape such as a semicircular diameter or a polygon. For example, in the case of a semi-circle, the diameter portion may be a straight line portion and this may be compared with the direction of the discharge pipe 14.

Further, if the direction detecting device 30 is such that the light can be emitted from two or more directions on one side of the tubular body such as the discharge pipe 14, it can be rotated in the horizontal direction as described above. The invention is not limited to one including one movable light source device 32, and may be a type including two or more light source devices, each of which can emit light in different directions. In that case, the first mirror 33 that changes the direction of the light does not necessarily have to be used, and only the second mirror 34 may be used for the operator to confirm the irradiation state. However, according to the direction detection device 30 including the mirror for changing the direction of light irradiation as described above, even if only one light source device 32 that emits light is provided, the direction of the light source device 32 is reduced. The mirror body 33a is rotated about the body 32a to face it in a desired direction, and
By using 4 in an appropriate combination, the direction of the discharge pipe 14 can be efficiently detected. Also,
By effectively using the specular bodies 33 and 34, the operator does not have to move one by one, and the reflected lights 35 and 35 ′ can be visually detected even if the operator stays at one place.

Further, in the above description, the vertical portion 16 of the discharge pipe 14 made of a metal for filling the contents in the bag making and filling device is explained as an example of the object for detecting the direction, but the horizontal portion 15 is also used. In addition, the present invention is not limited to the discharge pipe 14 in a bag-making and filling device in which bag-making and filling are continuously performed, and is provided in any filling device for filling contents in a package such as a bag or a container. It can also be applied to discharge pipes. Furthermore, the object whose direction is detected is not limited to the discharge pipe, but can be applied to various rod-shaped bodies that need to be accurately arranged in a predetermined direction. Also,
The cross-sectional shape does not necessarily have to be circular and may be rectangular. The rod-shaped body that is the object does not necessarily have to be a hollow cylindrical body but may be a solid rod-shaped body.

[0034]

As described above, according to the direction detecting method of the present invention, at least when the outer peripheral surface of the rod-shaped body is irradiated perpendicularly to the plane from at least two directions on one side of the rod-shaped body. A method for detecting the direction of the rod-shaped body by irradiating light having a shape having a linear portion and comparing the direction of the straight-lined portion on the outer peripheral surface of the irradiated light with the direction of the rod-shaped body Therefore, it is possible to easily and reproducibly determine the direction of the rod-shaped body that needs to be arranged in a precise direction, for example, the direction of the rod-shaped body such as the discharge pipe for filling in the bag-making filling device. Is particularly suitable for use in determining.

[Brief description of drawings]

FIG. 1A is a side view and FIG. 1B is a front view showing an example of a bag making and filling device according to the present invention.

FIG. 2 is a perspective view showing an example of a discharge pipe included in the bag-making filling device of FIG.

FIG. 3A is a perspective view and FIG. 3B is a plan view illustrating a direction detecting method of the present invention.

FIG. 4A is a side view and FIG. 4B is a front view showing an example of a conventional bag-making filling device.

[Explanation of symbols]

14 Discharge pipe 19a First reference line 19b Second reference line 30 direction detector 31, 31 'laser light 33 First Mirror 34 Second mirror

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroyuki Matsui             1-4-16 Nihonbashi Bakurocho, Chuo-ku, Tokyo               Fujimori Industry Co., Ltd. (72) Inventor Sumi Sasaki             1-4-16 Nihonbashi Bakurocho, Chuo-ku, Tokyo               Fujimori Industry Co., Ltd. (72) Inventor Tatsuya Miyagawa             12 shares, 3 511 Zenkobo, Otaru-shi, Hokkaido             Company Otaru Factory F term (reference) 2F065 AA32 AA37 BB08 DD06 FF23                       FF41 FF49 GG04 HH05 HH14                       HH18 LL12 TT08 UU09                 3E050 BA01 BA11 DC01 DC08 DD04                       DF02 FA01 FB01 FB07 HA01                       HA02 HA07 HB03 HB10                 3E075 AA07 AA12 BA42 BB05 CA04                       DA14 DA33 DD12 DD33 DD42                       DD43 DE25 GA04

Claims (10)

[Claims] 1. An outer peripheral surface of a rod-shaped body is irradiated with light from at least two directions on one side of the rod-shaped body, which has a shape having at least a straight portion when irradiated perpendicularly to a plane, A method for detecting the direction of a rod-shaped body, which comprises detecting the direction of the rod-shaped body by comparing the direction of the linear portion on the outer peripheral surface of the irradiated light with the direction of the rod-shaped body. 2. The method for detecting the direction of a rod-shaped body according to claim 1, wherein the light is laser light. 3. The method for detecting the direction of a rod-shaped body according to claim 1, wherein the light is reflected by a mirror to change its direction and irradiate the outer peripheral surface. 4. The direction of the straight line portion on the outer peripheral surface is compared with the direction of the rod-shaped body through the mirror by displaying the state of irradiation on the outer peripheral surface on a mirror. 4. The method for detecting the direction of a rod-shaped body according to any one of 3 to 3. 5. The at least two reference lines are provided on the outer peripheral surface of the rod-shaped body, and the light is irradiated to the reference lines from the two directions, respectively. The method for detecting the direction of a rod-shaped body according to any one of claims. 6. A filling method comprising a step of filling contents from a discharge pipe into a package, which is a flat surface from at least two sides of one side of the discharge pipe with respect to an outer peripheral surface of the discharge pipe. To irradiate light having a shape having at least a linear portion when vertically irradiated, by comparing the direction of the linear portion in the outer peripheral surface of the irradiated light, the direction of the discharge pipe, The filling method further comprising the step of detecting the direction of the discharge pipe. 7. A method comprising: a step of heat-sealing a tubular film in a width direction to form a bottomed tubular film; and a step of filling the bottomed tubular film with a content from a discharge pipe. A bag filling method, wherein the outer peripheral surface of the discharge pipe is irradiated with light having a shape having at least a straight portion when irradiated perpendicularly to a plane from at least two directions on one side of the discharge pipe. Then, the method further comprises the step of detecting the direction of the discharge pipe by comparing the direction of the straight line portion on the outer peripheral surface of the irradiated light with the direction of the discharge pipe. Method. 8. A filling device comprising a discharge pipe for filling contents in a package, wherein a flat surface is formed on at least two sides of one side of the discharge pipe with respect to an outer peripheral surface of the discharge pipe. The filling device further comprising a direction detection device capable of detecting the direction of the discharge pipe by irradiating light having a shape having at least a straight portion when vertically irradiated. 9. A heat-sealing device for heat-sealing a tubular film in a width direction to form a bottomed tubular film, and a discharge pipe for filling the bottomed tubular film with contents. A bag filling device, which irradiates the outer peripheral surface of the discharge pipe with light having a shape having at least a straight portion when irradiated perpendicularly to a plane from at least two directions on one side of the discharge pipe. By doing so, the bag making and filling device further comprising a direction detecting device capable of detecting the direction of the discharge pipe. 10. The bag making and filling device according to claim 9, wherein the bag making and filling device is used in a sterile space.