JP2014235118A - Pinhole inspection device and pinhole inspection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pinhole inspection device capable of simply performing a pinhole inspection of a flexible package in which solid and liquid are separately encapsulated.SOLUTION: A pinhole inspection device 10 comprises: conveyance means 20 for conveying a length direction of a division part 4 of a flexible package 1 consisting of a first encapsulation part 5 in which solid is encapsulated, a second encapsulation part 6 in which liquid having conductivity and gas to be mixed in encapsulation of the liquid is encapsulated, and the division part 4 which divides the first and second encapsulation parts along a conveyance direction; and inspection means 60 for applying voltage to the second encapsulation part 6 which is conveyed on the conveyance means 20 to inspect presence/absence of a pinhole, in which the conveyance means has: a first conveyance part 30 which conveys the first encapsulation part while adsorbing it; and a second conveyance part 40 which conveys an end side of the second encapsulation part by being inclined around an axis of the conveyance direction by using the division part as a base point at a state that the first encapsulation part is adsorbed by the first conveyance part 30, and the inspection means is provided on the second conveyance part 40.

Description

  The present invention relates to a pinhole inspection apparatus and a pinhole inspection method that are particularly suitable for the entire circumference inspection of a flexible package enclosing a solid and a liquid.

There is a pinhole inspection device that inspects pinholes in a package that can take various forms filled with medicines, cosmetics, foods, and the like.
It is known that the package has air mixed in when the liquid is sealed, and the presence of this air hinders the inspection. Therefore, the pinhole inspection apparatus disclosed in Patent Document 1 grips a container filled with a conductive liquid and a non-conductive gas, and inspects the container by tilting the container. Thereby, a liquid can be moved to a test | inspection site | part and a reliable and efficient pinhole test | inspection can be performed.

However, when the inspection object is a flexible package, there is a problem that the action of carrying while gripping has a problem that the package cannot be conveyed due to breakage of the package or its flexibility.
In order to solve such a problem, the pinhole inspection apparatus disclosed in Patent Document 2 conveys the package in order to avoid the influence of the air mixed when the liquid as the contents of the package is sealed on the inspection. Place the conveyor in a square shape (mountain shape), perform pinhole inspection on the rear part of the package (relative to the direction of travel) on the up conveyor, and above the package (in the direction of travel) on the lower part of the conveyor Pinhole inspection). Thereby, it can test | inspect, avoiding the influence of the air mixed in the package.

JP 2002-148241 A JP 2001-174442 A

As one form of the aforementioned package, there is a flexible package in which a solid and a liquid are separately sealed.
In the pinhole inspection of the liquid enclosure part of this flexible package, there is air mixed in when the liquid is enclosed, so that the pinhole cannot be detected in a flat state. Therefore, in the same manner as the flexible packaging body in which the liquid disclosed in Patent Document 2 is sealed, for example, the flexible packaging body is tilted in the vertical direction of a predetermined angle and the voltage is applied in a state where the air is biased and the inspection is performed. Must.

However, if the solid encapsulating part enclosing the solid not to be inspected is configured to pass through the same transport conveyor as the liquid enclosing part, there is a problem that the inspection time is long and takes time. Further, if the solid enclosure is transported on a transport conveyor having a predetermined angle of inclination, the package may be damaged due to impact.
In addition, there is a conventional inspection apparatus that transports a solid sealed portion sandwiched between upper and lower transport belts when performing a pinhole inspection of a liquid sealed portion. When the solid in the solid enclosure is a powder, the thickness of the solid enclosure is uneven for each package, and the package may not be conveyed with the upper and lower conveyance belts sandwiched. If the upper and lower surfaces of the solid enclosure are sandwiched between the upper and lower conveyor belts as described above, the solid or the package may be damaged. Further, since the weight of the package acts on the lower conveyance belt, there is a problem that it is difficult to convey the package well by synchronizing the upper and lower conveyance belts.

  Accordingly, the present invention provides a pinhole inspection apparatus and a pinhole inspection method that can easily perform a pinhole inspection of a flexible package in which a solid and a liquid are separately sealed in order to solve the above-described problems of the prior art. The purpose is to do.

  The present invention, as a first means for solving the above problems, a first encapsulating portion encapsulating a solid, a second encapsulating portion enclosing a conductive liquid and a gas mixed during the encapsulation of the liquid, Conveying means for conveying the length direction of the divided portion of the flexible packaging body formed of the first enclosing portion and the dividing portion for dividing the second enclosing portion along the conveying direction, and conveying on the conveying means Inspection means for inspecting the presence or absence of a pinhole by applying a voltage to the second enclosure portion, wherein the conveyance means conveys the first enclosure portion while adsorbing the first enclosure portion, In the state where the first enclosing unit is adsorbed by the first conveying unit along with the first conveying unit, the end of the second enclosing unit is inclined around the axis in the conveying direction with the dividing unit as a base point for conveyance. A second transport unit, and the inspection means is provided on the second transport unit. And to provide a pinhole inspection apparatus characterized.

  The present invention provides, as a second means for solving the above-described problems, in the first means, wherein the first transport unit includes a transport belt provided with a plurality of long holes, and a lower surface of the transport surface of the transport belt. A plurality of suction holes, and a plurality of suction holes each having a suction space divided into blocks, wherein the plurality of long holes are arranged in a staggered manner in the length direction along the transport direction, and the suction holes of one block of the suction part A pinhole inspection apparatus characterized by satisfying a relationship of m / n ≧ 0.5, where n is the number, and m is the number of the suction holes blocked by the flexible package and the transport belt It is to provide.

  According to the present invention, as a third means for solving the above-described problem, in the second means, the first transport unit is opposed to an upper surface of the transport belt, and is sucked into the transport belt by suction of the suction unit. Another object of the present invention is to provide a pinhole inspection apparatus provided with a rotatable upper conveyor that adsorbs and conveys the flexible package while being in contact with the upper surface thereof.

  According to the present invention, as a fourth means for solving the above-described problem, in the first to third means, the transport means transports the second transport section upstream of the inspection means. (2) a position detection sensor for detecting the passage of the enclosing portion, a separation means for discharging the flexible packaging body from the transport path to the outside on the downstream side of the inspection means, and the position detection sensor and the separation means electrically And a control means for transmitting a control signal for discharging the flexible packaging body displaced from the second transport unit to the outside based on the detection signal of the position detection sensor connected to the sorting means. It is providing the pinhole test | inspection apparatus characterized by these.

  As a fifth means for solving the above-mentioned problems, the present invention provides a first enclosing portion enclosing a solid, a second enclosing portion enclosing a conductive liquid and a gas mixed when the liquid is enclosed, A method of inspecting the presence or absence of a pinhole by applying a voltage to a flexible packaging body composed of a divided portion that divides the first enclosure portion and the second enclosure portion, When transporting the length direction of the dividing unit along the transport direction, the first enclosing unit is transported while being adsorbed onto the transport belt of the first transport unit, and the first enclosing unit is adsorbed in the state The step of inclining the end portion of the second enclosing portion around the axis in the conveying direction with the dividing portion as a base point and conveying the second enclosing portion on the second conveying portion, and the voltage applied to the second enclosing portion conveying on the second conveying portion And a step of inspecting for the presence or absence of a pinhole by applying a pinhole. To provide a Le test method.

  According to the present invention as described above, it is possible to perform a pinhole inspection of the second encapsulating part enclosing the liquid while transporting the first enclosing part enclosing the solid without damaging it. Moreover, a pinhole test | inspection can be performed, avoiding the gas layer mixed in a 2nd enclosure part.

  According to the present invention as described above, the flexible packaging body can be transported while maintaining the state in which the first enclosing portion is adsorbed to the upper surface of the transport belt. Thereby, there is no possibility of damaging the solid and the film enclosed in the 1st enclosure.

  According to the present invention as described above, by disposing the rotatable upper conveyor in contact with the upper surface of the conveyor belt and the first enclosure part, the oblong holes and the suction part of the conveyor belt that the first enclosure part is not adsorbed are arranged. The suction hole can be closed, and the first enclosure can be transported while adsorbed to the transport belt while suppressing the suction force of the suction portion.

  According to the present invention as described above, it is possible to exclude the flexible package that could not be subjected to an accurate pinhole inspection due to the displacement of the second enclosing part on the second transport part from the transport path.

It is a perspective view which shows the structure outline of the pinhole test | inspection apparatus of 1st Embodiment. It is a top view which shows the structure outline of the pinhole test | inspection apparatus of 1st Embodiment. It is a front view showing the composition outline of the pinhole inspection device of a 1st embodiment. It is explanatory drawing of a flexible package, (A) is a top view, (B) is an AA arrow line view of (A). It is a side view which shows the structure outline of a 1st conveyance part. It is the top view which expanded a part of conveyance belt. It is explanatory drawing of a needle-shaped electrode. It is a side view which shows the time of (B) exclusion at the time of (A) conveyance of the flexible packaging body by a classification means. It is a top view which shows the structure outline of the pinhole test | inspection apparatus of 2nd Embodiment. It is a side view which shows the structure outline of the 1st conveyance part of 2nd Embodiment.

  Embodiments of a pinhole inspection apparatus and a pinhole inspection method of the present invention will be described in detail below with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a schematic configuration of the pinhole inspection apparatus according to the first embodiment. FIG. 2 is a plan view illustrating a schematic configuration of the pinhole inspection apparatus according to the first embodiment. FIG. 3 is a front view showing a schematic configuration of the pinhole inspection apparatus according to the first embodiment. 4A and 4B are explanatory views of the flexible packaging body, where FIG. 4A is a plan view and FIG. 4B is a view taken along the line A-A in FIG.

  As shown in FIG. 4, the flexible packaging body 1 to be inspected by the pinhole inspection apparatus of the present invention encloses two types of contents, solid and liquid, into one packaging body. . Specifically, the liquid inlet 2 is arranged at one end of the package, a flexible film made of an insulating material such as resin is overlaid, and the peripheral edge 3 is joined by thermocompression bonding or the like. doing. The flexible packaging body 1 includes a first enclosing portion 5 that encloses a solid, and a second enclosing portion that encloses a liquid, by forming a divided portion 4 between two kinds of contents of the solid and the liquid encapsulated therein. The configuration is divided into six. Such a divided portion 4 can be formed by thermocompression bonding or the like, similarly to the joining of the peripheral edge portion 3. At this time, the dividing portion 4 is formed with a lower bonding strength than the peripheral edge portion 3. By adopting such a configuration, after enclosing the first encapsulating part 5 and the second enclosing part 6, by pressing each encapsulating part at the time of use, the joining of the divided parts 4 is peeled off, and the solid content The liquid can be mixed inside the package. In addition, the flexible packaging body 1 of this embodiment demonstrates below by making the side surface side which provided the enclosure port 2 into the width direction, and making the direction orthogonal to the width direction into a length direction.

  When the liquid in the second enclosing part 6 of the flexible package 1 is enclosed and the second enclosing part 6 is sealed, a gas (for example, air, inert gas, etc.) as shown in FIG. (Gas reservoir) 7 is formed. If there is a gas reservoir inside the film constituting the second enclosing part 6 of the flexible packaging body 1, an insulating layer is formed between the film and the liquid, so that a pinhole is formed at this location. In such a case, no spark discharge occurs even when a voltage is applied, and pinholes in that portion cannot be detected.

In addition, the first enclosing part 5 enclosing a solid that is not to be inspected must be handled so that deformation of the solid, damage to the film, etc. do not occur due to contact with mechanical equipment during the inspection of the second enclosing part 6 enclosing the liquid. I must.
The pinhole inspection apparatus 10 of the present embodiment performs the pinhole inspection of the flexible packaging body 1 enclosing the solid and the liquid as described above, so that the first enclosure portion 5 and the second enclosure portion 6 can be compared. A different transport route is adopted.

The basic configuration of the pinhole inspection apparatus 10 according to the first embodiment includes a transport unit 20 having two types of transport paths, a first inspection unit 70 that performs a pinhole inspection of the second enclosing unit 6, and a second inspection unit 90. The inspection means 60 provided with
The conveying means 20 can convey the solid so that the width direction of the flexible packaging body 1, in other words, the length direction of the divided portion 4 is parallel to the conveying direction (arrow A in FIG. 1). The 1st conveyance part 30 which conveys the enclosed 1st enclosure part 5 and the 2nd conveyance part 40 which conveys the 2nd enclosure part 6 which enclosed the liquid are arranged side by side.

  FIG. 5 is a side view showing a schematic configuration of the first transport unit. FIG. 6 is an enlarged plan view of a part of the conveyor belt. The 1st conveyance part 30 is a conveyance conveyor which conveys the 1st enclosure 5 which is not made into a test object, maintaining a horizontal state. The 1st conveyance part 30 employ | adopts the form conveyed, adsorb | sucking to the belt surface the 1st enclosure part 5 which cannot be hold | gripped for flexibility. The concrete 1st conveyance part 30 has the conveyance belt 32, the drive part 34, and the suction part 36 as the main basic structures.

  As shown in FIG. 6, the conveying belt 32 has an opening 33a in which a roller pin is fitted at both ends in the width direction of the belt surface, and between the opening 33a, and the length direction of the hole is along the conveying direction. This is an endless belt provided with long holes 33b arranged in a staggered manner. In the long holes 33b of this embodiment, the long holes 33b continuous along the transport direction have the same pitch, and are arranged in a plurality of rows (four rows). Further, the long hole 33b is provided so as to be biased toward the second transport unit 40 in a plan view of the belt surface.

The drive unit 34 includes a plurality of rollers 35a that drive the conveyor belt 32 and a motor 35b. A pair of rollers 35c in contact with the conveyance surface is provided with a plurality of pins 35d that fit into the openings 33a of the conveyance belt 32 along the outer periphery.
The suction unit 36 includes a suction table 37 and a suction pump 38. The suction table 37 is provided on the lower surface of the transport surface of the transport belt 32. A plurality of suction holes 37 a are formed on the upper surface of the suction table 37. The suction table 37 is divided into a plurality of blocks. As an example, the suction table of this embodiment is divided into six blocks. A partition plate 37b is provided between adjacent blocks. A suction pump 38 is connected to each block of the suction table 37 via a pipe 39a.

The opening ratio of the suction holes 37a of the present embodiment is such that the number of suction holes 37a formed in one block of the suction part 36 is n, and the number of suction holes 37a closed by the flexible packaging body 1 and the transport belt 32 is the number of suction holes 37a. m
m / n ≧ 0.5
It is configured to satisfy the relationship.

According to such a 1st conveyance part 30, the contact of the 1st enclosure part 5 and a mechanical apparatus can be reduced, and the 1st enclosure part 5 can be conveyed, preventing damage to a solid or a film.
The 2nd conveyance part 40 is a conveyance conveyor which conveys the 2nd enclosure part 6 inclining up and down around the axis | shaft of a conveyance direction. In the second enclosure 6 enclosing the liquid, gas is mixed when the liquid is enclosed, and a gas layer 7 is formed inside the second enclosure 6.

  The 2nd conveyance part 40 is comprised from the 1st-4th rope conveyors 42,44,46,48. The first to fourth rope conveyors 42, 44, 46, 48 have a pair of endless ropes 50, rollers 52, and a motor as the main basic configuration. The first and fourth wire rope portions 42, 48 are arranged at both ends of the second transport unit 40, and are similar to the first enclosing unit 5 transported in a state where the first transport unit 30 maintains a horizontal state. 2 It is a conveyor which can be conveyed in the state which the enclosure part 6 maintained the horizontal state. The second rope conveyor 44 is disposed downstream (downstream) of the first rope conveyor 42 and seals the second enclosure 6 with respect to the first enclosure 5 placed in a horizontal state with the dividing portion 4 as a starting point. In order to enable conveyance with the inlet 2 side inclined downward, as shown in FIG. 3, the conveyor has a conveyance surface inclined at a predetermined angle. The 3rd rope conveyor 46 is arrange | positioned between the 2nd rope conveyor 44 and the 4th rope conveyor 48, and with respect to the 1st enclosure part 5 set | placed in the horizontal state, the 2nd enclosure part 6 on the basis of the division part 4 is used. This is a conveyor in which the conveying surface is inclined at a predetermined angle (an angle that is line-symmetric with the conveying surface of the second rope conveyor 44 with respect to the horizontal plane) in order to be able to convey with the sealing port 2 side inclined upward. .

According to such a 2nd conveyance part 40, the contact of the 2nd enclosure part 6 and a mechanical apparatus is reduced, damage to a solid or a film is prevented, and the 2nd enclosure part 6 is conveyed, making it incline at a predetermined angle. Can do.
As shown in the figure, the first inspection unit 70 has a detection electrode 72 and a high voltage application electrode 78 as the main basic configuration.

  The detection electrode 72 is provided with a first detection electrode 74 and a second detection electrode 76 along the conveyance direction of the flexible package 1. Further, the first detection electrode 74 and the second detection electrode 76 are provided so as to be in contact with the upper surface of the second enclosure portion 6 on the side of the enclosure port 2. The 1st detection electrode 74 and the 2nd detection electrode 76 are arrange | positioned at intervals shorter than the width length of the flexible package 1 used as a detection target.

  The high voltage application electrode 78 is disposed between the first detection electrode 74 and the second detection electrode 76, and is provided so as to be in contact with the lower surface of the second enclosure portion 6 on the enclosure port 2 side. The high voltage application electrode 78 is connected to the anode side of a high-voltage power supply (not shown), and the first and second detection electrodes 74 and 76 are connected to the cathode side of the high-voltage power supply (not shown) and are grounded. An ammeter-side means (not shown) is provided between the detection electrode 72 and the grounding point, so that a change in current due to a discharge generated in the pinhole portion can be detected. In addition, while the arrangement of the first and second detection electrodes 74 and 76 and the high voltage application electrode 78 is as described above, while the high voltage application electrode 78 is in contact with the flexible package 1, At least one of the detection electrodes 72 (the first detection electrode 74 or the second detection electrode) is in contact with the flexible packaging body 1, thereby preventing inspection leakage.

  The first and second detection electrodes 74 and 76 and the high voltage application electrode 78 of the present embodiment adopt the form of a needle electrode 80. FIG. 7 is an explanatory diagram of a needle-like electrode. The needle electrode 80 is elastically deformable, and a plurality of needle electrodes 80 are arranged along the length direction of the flexible package 1 in the first and second inspection portions 70 and 90. The arrangement width of the needle electrode 80 is set slightly wider than the inspection region. Each of the needle electrodes 80 is fixed to a support portion 82 that can be individually rotated via a base portion 81. The needle electrode 80 applies a voltage to the second enclosing portion 6 via the support portion 82, and extends in the opposite direction from the electrode portion 83 with the base portion 81 as a center and an electrode portion 83 that detects the discharge current. The first protrusion 84a and the second protrusion 84b extending from the base 81 in the direction intersecting with the extending direction of the first protrusion 84a.

  The electrode part 83 is installed with a position slightly inclined in the conveying direction of the flexible packaging body 1 as a normal position with respect to a perpendicular line with the installation position of the support part 82 as a base point. The electrode portion 83 of each needle-like electrode 80 rotates in the transport direction in accordance with the contact of the flexible packaging body 1 when the flexible packaging body 1 comes into contact (arrow a in FIG. 7). It is comprised so that it may bias on the surface of the flexible packaging body 1. FIG.

  For applying the urging force to the needle-like electrode 80, an elastic member 88 such as a string-wound spring is used. A stay 86 having a support end in the conveyance direction of the flexible packaging body 1 is disposed on the fixing portion 85 that fixes the support portion 82. Then, an elastic member 88 is connected from the support end of the stay 86 to the second protrusion 84b of the needle electrode 80, and a stopper 87 that supports the first protrusion 84a is provided so that the electrode portion 83 is disposed at the steady position. When the needle electrode 80 is rotated from the steady position, a tensile force is applied. As a result, a force to return the needle-shaped electrode 80 to the steady position is applied. When the needle-shaped electrode 80 is rotated by the advancement of the flexible packaging body 1, it follows the surface shape of the flexible packaging body 1. An urging force is given to. In addition, each of the plurality of needle-like electrodes 80 provided along the length direction of the flexible package 1 is separately rotated and biased. In addition, in order to prevent the damage of the surface of the flexible packaging body 1 by contact, the front-end | tip of the electrode part 83 is curved along the conveyance direction of the flexible packaging body 1, and the contact location is rounded. Yes.

  Since the second inspection unit 90 adopts the same form as the first inspection unit 70, detailed description thereof is omitted. The second inspection unit 90 is different from the first inspection unit 70 in the electrode arrangement position. In the pinhole inspection apparatus 10 of the present embodiment, the second enclosing unit 6 is inclined in two upper and lower directions around the transport direction axis. For this reason, it is set as the arrangement structure which can test | inspect the division | segmentation part 4 side opposite to the side which test | inspected the enclosure 2 side of the 2nd enclosure part 6 in the 1st test | inspection part 70. FIG. Such a 1st test | inspection part 70 and the 2nd test | inspection part 90 are set as the line-symmetric positional relationship with respect to the conveyance direction of the flexible package 1. FIG.

In addition, when the division | segmentation part 4 side of the 2nd enclosure part 6 is test | inspected in the 1st test | inspection part 70, if the arrangement structure which can test | inspect the enclosure 2 side of the 2nd enclosure part 6 in the 2nd test | inspection part 90 is taken. good.
A position detection sensor 100 is attached to the second transport unit 40 described above. The position detection sensor 100 is mounted on the second transport unit 40 and upstream of the inspection unit 60. The position detection sensor 100 includes two detection units 102a and 102b at positions overlapping the sealing port 2 side and the dividing unit 4 side of the second sealing unit 6 that transports the second transporting unit 40 in plan view. The detection units 102 a and 102 b are configured to be able to irradiate laser light onto the second transport unit 40 immediately below, and to be configured to be able to input laser light reflected from the second enclosing unit 6. According to the position detection sensor 100 having such a configuration, it is possible to detect passage of the second enclosure portion 6 that is conveyed on the second conveyance portion 40 on the side of the enclosure port 2 and the division portion 4.

  A sorting unit 110 is attached to the downstream side of the transport unit 20. FIG. 8 is a side view showing (A) when the flexible packaging body is conveyed by the sorting means and (B) when it is removed. The sorting means 110 has a basic configuration of a casing 111, an opening / closing conveyor 112, a conveyor driving unit 116, and an opening / closing driving unit 120. The opening / closing conveyor 112 is a conveyor that is disposed on the downstream side of the conveying means 20 and receives the flexible package 1 after the pinhole inspection. The open / close conveyor 112 is provided on the casing 111 and includes rollers 113 a and 113 b and a belt 114. The opening / closing conveyor 112 is configured such that the downstream roller 113b is a central axis of rotation, and the upstream roller 113a is rotatable in the direction of arrow b. A driving motor serving as a conveyor driving unit 116 is connected to the downstream roller 113b via a rope 115. The open / close conveyor 112 having such a configuration can continue to rotate the belt 114 during the opening and closing operations of the conveyor.

  The opening / closing drive unit 120 basically includes a bearing 122, a cam 124, a motor 126, and an elastic body 128. The bearing 122 is attached to the lower surface of the opening / closing conveyor 112. The cam 124 and the motor 126 are attached to the casing 111 side, and the cam 124 is substantially elliptical in a side view, and is attached to the shaft of the motor 126 so as to be rotatable. The cam 124 is disposed immediately below the bearing 122, and when the short shaft of the cam 124 is in contact with the bearing 122, the open / close conveyor 112 is in a horizontal state (closed state). On the other hand, when the long axis of the cam 124 is in contact with the bearing 122, the roller 113a of the open / close conveyor 112 moves upward and the open / close conveyor 112 is opened. One end of the elastic body 128 is attached to the lower surface of the opening / closing conveyor 112, and the other end is attached to the casing 111 side. Such an elastic body 128 can bias the open / close conveyor 112 toward the casing 111. When the short shaft of the cam 124 comes into contact with the bearing 122, the open / close conveyor 112 having such a configuration is in a horizontal state (closed state), and the flexible packaging body 1 can be conveyed. On the other hand, when the long axis of the cam 124 comes into contact with the bearing 122, the open / close conveyor 122 is opened, and the flexible package 1 can fall into the casing 111 and be removed to the outside.

  Control means (not shown) is electrically connected to the position detection sensor 100 and the sorting means 110. Based on the detection signal of the position detection sensor 100, the control means is configured to transmit a control signal for discharging the flexible packaging body 1 displaced from the second transport unit 40 to the sorting means 110. .

Next, a pinhole inspection method using the pinhole inspection apparatus 10 having the above configuration will be described below.
The flexible packaging body 1 is supplied to the conveying means 20 from the upstream side of the pinhole inspection apparatus 10. The first transport unit 30 of the transport unit 20 moves the transport belt 32 in the transport direction that is the direction of arrow A in FIG. When the first enclosure 5 is placed on the transport belt 32, it moves in the horizontal direction along the transport direction. When the first enclosing unit 5 is conveyed onto the suction table 37 provided below the conveying surface of the conveying belt 32, the lower surface of the first enclosing unit 5 becomes longer than the length of the conveying belt 32 due to suction from the suction holes 37 a. It is conveyed while adsorbed on the belt surface through the holes 33b.

  On the other hand, the 2nd conveyance part 40 of the conveyance means 20 is moving the rope conveyor toward the conveyance direction used as the arrow A direction in FIG. If the 2nd enclosure part 6 is mounted on the rope conveyor of the 1st rope conveyor 42, it will move to a horizontal direction along a conveyance direction. And if the 2nd enclosure part 6 passes the position detection sensor 100 provided on the 1st rope conveyor 42 used as the 2nd conveyance part 40, a detection signal will be transmitted to a control means.

  Next, the second enclosure 6 moves onto the rope conveyor of the second rope conveyor 44. As shown in FIG. 3, the second rope conveyor 44 inclines the sealing port 2 side of the second sealing portion 6 downward with respect to the first sealing portion 5 placed in a horizontal state as shown in FIG. It is configured to be transportable in a state. For this reason, the gas layer 7 of the 2nd enclosure part 6 moves to the edge part by the side of the division | segmentation part 4. FIG. When the second enclosing unit 6 reaches the first inspection unit 70 provided on the second rope conveyor 44, first, the first detection electrode 74 contacts from the upper surface side of the enclosing port 2 side of the second enclosing unit 6. And if the 2nd enclosure part 6 advances as it is, the high voltage application electrode 78 will contact the lower surface by the side of the enclosure port 2 of the 2nd enclosure part 6. FIG. Since the second detection electrode 76 is in contact with the first detection electrode 74 before leaving the second enclosure portion 6, the first detection electrode 74 is separated from the second enclosure portion 6 even if the first detection electrode 74 is away from the second enclosure portion 6. 2 A pinhole inspection on the enclosure 2 side of the enclosure 6 can be performed. If there is a pinhole in the second enclosing portion 6, spark discharge occurs in the pinhole portion, and the current flowing to the detection electrode 72 changes, so that the presence or absence of the pinhole can be detected.

  Next, the second enclosure 6 moves onto the rope conveyor of the third rope conveyor 46. The 3rd rope conveyor 46 is the structure which can convey in the state which inclined the enclosure port 2 side of the 2nd enclosure part 6 upwards from the division | segmentation part 4 with respect to the 1st enclosure part 5 placed in the horizontal state It is said. For this reason, the gas layer 7 of the 2nd enclosure part 6 moves to the edge part by the side of the enclosure port 2. FIG. When the second enclosing unit 6 reaches the second inspection unit 90 provided on the third rope conveyor 46, first, the first detection electrode 74 comes into contact from the upper surface side of the dividing unit 4 side of the second enclosing unit 6. When the second encapsulating part 6 proceeds as it is, the high voltage application electrode 78 comes into contact with the lower surface of the second enclosing part 6 on the divided part 4 side. Since the second detection electrode 76 is in contact with the first detection electrode 74 before leaving the second enclosure portion 6, the first detection electrode 74 is separated from the second enclosure portion 6 even if the first detection electrode 74 is away from the second enclosure portion 6. 2 A pinhole inspection on the divided portion 4 side of the enclosing portion 6 can be performed.

Finally, when the second enclosure 6 is placed on the rope conveyor of the fourth rope conveyor 48, it moves in the horizontal direction along the transport direction.
Based on the detection signal of the position detection sensor 100, the control means is flexible when the pinhole inspection cannot be accurately performed by the inspection means 60 when the second enclosing part 6 is displaced from the second transport part 40. A control signal for discharging the package 1 to the outside is transmitted to the sorting means 110. In the sorting means 110, the open / close conveyor 112 can be lifted to discharge the flexible package 1 from the inside of the casing 111 to the outside.

  According to the pinhole inspection apparatus 10 of the first embodiment as described above, the pinhole inspection of the second enclosure portion 6 enclosing the liquid is performed while the first enclosure portion 5 enclosing the solid is transported without being damaged. be able to. Moreover, a pinhole test | inspection can be performed, avoiding the gas layer 7 mixed in the 2nd enclosure part 6. FIG.

  Next, a pinhole inspection apparatus 10A of the second embodiment will be described below. Note that the difference between the pinhole inspection apparatus 10A of the second embodiment and the pinhole inspection apparatus 10 of the first embodiment is only the form of the first transport unit, and the above description is used for other configurations.

FIG. 9 is a plan view showing a schematic configuration of the pinhole inspection apparatus according to the second embodiment. FIG. 10 is a side view showing a schematic configuration of the first transport unit of the second embodiment.
The first conveyance unit 30 </ b> A of the present embodiment includes an upper conveyor 200 that is in contact with the conveyance surface (upper surface) of the conveyance belt 32. The upper conveyor 200 has an upper belt 210 and a roller 220 as main components. The upper conveyor 200 does not include a driving unit that rotates the roller 220 by allowing the upper belt 210 to be wound around the plurality of rollers 220 to be freely rotatable. The upper belt 210 is opposed to the upper surface of the conveyance belt 32, and is adsorbed to the conveyance belt 32 by suction of the suction portion 36, and is configured to be rotatable in the conveyance direction while being in contact with the upper surface of the flexible packaging body 1.

  According to the pinhole inspection apparatus 10A of the second embodiment as described above, the first enclosing unit 5 is adsorbed by arranging the rotatable upper conveyor 200 in contact with the transport belt 32 and the upper surface of the first enclosing unit 5. The long holes 33b of the non-conveying belt 32 and the suction holes 37a of the suction part 36 can be closed, and the first inclusion body 5 can be conveyed while adsorbed to the conveyance belt 32 while suppressing the suction force of the suction part 36. .

DESCRIPTION OF SYMBOLS 1 ......... Flexible packaging body, 2 ......... Enclosure port, 3 ......... Peripheral part, 4 ......... Division part, 5 ......... First enclosure part, 6 ......... Second enclosure part, 7 ......... Gas layer, 10, 10A ......... Pinhole inspection device, 20 ......... Conveying means, 30, 30A ......... First conveying part, 32 ......... Conveying belt, 33a ......... Opening, 33b ... ...... Elongated hole, 34 ... Drive section, 35a ......... Roller, 35b ......... Motor, 35c ......... Roller, 35d ......... Pin, 36 ......... Suction part, 37 ......... Suction stand, 37a ......... Suction hole, 37b ......... Partition plate, 38 ......... Suction pump, 39a ......... Piping, 40 ......... Second conveying section, 42 ......... First rope conveyor, 44 ......... First 2 rope conveyor, 46 ......... 3rd rope conveyor, 48 ......... 4th rope conveyor, 50 ......... rope, 52 ......... roller, 0 ......... Inspection means, 70 ......... First inspection section, 72 ......... Detection electrode, 74 ......... First detection electrode, 76 ......... Second detection electrode, 78 ......... High voltage application electrode, 80 ......... Needle electrode, 81 ......... Base, 82 ......... Support, 83 ......... Electrode, 84a ... First projection, 84b ... Second projection, 85 ......... Fixing part, 86 ......... Stay, 87 ......... Stopper, 88 ......... Elastic member, 90 ...... Second inspection part, 100 ......... Position detection sensor, 110 ......... Sorting means, 111 ......... Casing, 112 ......... Opening and closing conveyor, 113a, 113b ......... Roller, 114 ......... Belt, 115 ......... Rope, 116 ......... Conveyor drive, 120 ......... Opening / closing drive, 122 ......... Bearing , 124 ......... Cams, 126 ......... Motor, 128 ......... Elastic body, 20 ......... upper conveyor, 210 ......... upper belt, 220 ......... roller.

Claims (5)

A first enclosing portion enclosing a solid, a second enclosing portion enclosing a conductive liquid and a gas mixed at the time of enclosing the liquid, and a dividing portion for dividing the first enclosing portion and the second enclosing portion Conveying means for conveying the length direction of the divided portion of the flexible packaging body along the conveying direction;
An inspection means for inspecting the presence or absence of a pinhole by applying a voltage to the second enclosing portion that is conveyed on the conveying means;
With
The conveying means includes a first conveying unit that conveys the first enclosing unit while adsorbing the first enclosing unit, and the dividing unit in a state where the first enclosing unit is adsorbed by the first conveying unit along with the first conveying unit. And a second transport part that transports the end side of the second enclosing part inclined around the axis in the transport direction with the base point as a base point,
The pinhole inspection apparatus, wherein the inspection means is provided on the second transport unit. The first transport unit is
A conveyor belt provided with a plurality of elongated holes;
A suction section in which a plurality of suction holes are provided on the lower surface of the transport surface of the transport belt and the suction space is divided into blocks;
With
The plurality of long holes are staggered in the length direction along the conveying direction,
When the number of the suction holes of one block of the suction part is n, and the number of the suction holes closed by the flexible package and the transport belt is m,
m / n ≧ 0.5
The pinhole inspection apparatus according to claim 1, wherein:   The first transport unit is opposed to the upper surface of the transport belt, and is provided with a rotatable upper conveyor that transports while being in contact with the upper surface of the flexible packaging body while being attracted to the transport belt by suction of the suction unit. The pinhole inspection apparatus according to claim 2, wherein: The conveying means is
A position detection sensor for detecting the passage of the second enclosing unit that conveys the second conveying unit upstream of the inspection means;
A sorting means for discharging the flexible package from the transport path to the downstream side of the inspection means;
Based on the detection signal of the position detection sensor that is electrically connected to the position detection sensor and the sorting means, a control signal for discharging the flexible packaging body displaced from the second transport unit to the outside Control means for transmitting to the means;
The pinhole inspection apparatus according to any one of claims 1 to 3, further comprising: A first enclosing portion enclosing a solid, a second enclosing portion enclosing a conductive liquid and a gas mixed at the time of enclosing the liquid, and a dividing portion for dividing the first enclosing portion and the second enclosing portion A method for inspecting the presence or absence of pinholes by applying a voltage to a flexible packaging body comprising:
When the length direction of the division part of the flexible package is conveyed along the conveyance direction, the first enclosing part is conveyed while being adsorbed onto the conveying belt of the first conveying part, and the first enclosure The step of inclining the end of the second enclosing unit around the axis in the conveying direction with the divided portion as a base point in a state where the portion is adsorbed and conveying the second conveying unit;
Applying a voltage to the second enclosing unit that conveys the second conveying unit to inspect for the presence of a pinhole;
A pinhole inspection method characterized by comprising: