KR101400788B1 - Apparatus and method for inspecting container - Google Patents

Abstract

Disclosed are a device and a method for inspecting a container. The device for inspecting a container according to one embodiment of the present invention has a turret assembly which revolves and rotates a container. The device may include a pusher combined to the turret assembly; an air filter which is combined to the upper portion of the pusher and filters air for adsorbing the container; a filter line which is connected to the air filter to be provided with air filtered by the air filter; and a leak detection module which is connected to the filter line and detects the leak amount of inhaled air due to a curve on the top of an inlet of the container by measuring the flow amount of the inhaled air.

Description

[0001] APPARATUS AND METHOD FOR INSPECTING CONTAINER [0002]

The present invention examines whether the top of the inlet of the container such as a preform, bottle, flask or the like is horizontal or not, that is, the top of the inlet of the container due to wavy deformation, damage, scratch, And a container inspection apparatus and method.

In general, a preform made of PET (polyethylene terephthalate) can be supplied to a blow molding apparatus or a stretch-blow molding apparatus to produce a hollow container such as a bottle or a flask.

The preform includes a tubular body integrally formed at the lower portion of the neck, with one of its lengthwise end portions closed, a neck at the opposite open end portion, and a tubular body integrally formed at the lower portion of the neck, After the operation, the final container shape can be obtained.

1, a preform inspection apparatus 10 according to Patent Document 1 shown in FIG. 1 includes a preform supply unit 1 for supplying a preform P to a first preform transfer unit 3, A plurality of pushers 3a are provided on a first rotary plate which rotates in response to a rotational force from the drive means 2 to provide a power required for the operation of the pusher 3a, A first preform transferring part 3 for sucking and moving the preform P to the first adsorption port 3b and a preform rotating part 4 for rotating the preform P of the first preform transferring part 3 .

The container inspection apparatus 10 according to Patent Document 1 is provided adjacent to a section where the preform pivoting portion 4 is installed so as to inspect the surface of the body of the preform P and includes a first preform conveying portion 3, When the preform 10 moves through the preform rotating unit 4 by a distance of "? &Quot; and makes two rotations, the first and second reflectors are moved together by" And a second reflector rotating device for inspecting a neck surface of the preform (P). The neck surface inspection part (5) includes a first reflector rotating device (6).

The container inspection apparatus 10 of Patent Document 1 includes a suction pipe arranged in a radial direction on the second rotary plate as a plurality of units and a second suction port provided at the end of the suction pipe, A second preform transferring part 7 for sucking and transporting the first preform transferring part 7 to the second adsorption port and transferring the second preform transferring part 7 to the second adsorption port 7, and a neck inner wall, a neck dimension, An inspection unit 8 for inspecting the floor area, and a preform discharge unit 9 for discharging the inspected preform P to the outside.

However, the preform inspecting apparatus 10 of Patent Document 1 has many problems as described later.

First, the preform inspecting apparatus 10 of Patent Document 1 determines whether the upper end of the inlet of the preform P is horizontal (that is, whether the upper end of the inlet is in close contact with the bottom surface of the first adsorption orifice 3b of the pusher 3a) There is no means for inspecting whether or not fine cracks and perforations are present in the substrate P and the like.

The preform inspecting apparatus 10 of Patent Document 1 is a conveying system using a screw 1a and has a large contact area with the preform P so that the surface of the preform P and the conveying surface of the screw 1a, The surface speed of the preform P may be relatively high, and surface defects such as scratches may occur on the surface of the preform P, and the occurrence of surface defects due to contact with a large area may be serious.

Patent Document 2 discloses a method of determining whether the preform P is horizontally positioned at the upper end of the inlet 12 by using the internal pressure of the preform P measured by the pressure sensor or whether fine cracks or perforation holes exist in the preform P Etc. have been introduced. In the central processing unit of Patent Document 2, when the internal pressure of the preform P measured by the pressure sensor is compared with the reference pressure and is within the permissible error range, it is determined to be acceptable, and if the internal pressure is out of the permissible error, The tolerance range may vary depending on the internal volume of the preform, the capacity of the vacuum pump, and the like.

However, since the pressure sensor of the patent document 2 is of the pressure type, a time delay occurs until an input value (for example, a suction pressure value) to be compared with a reference pressure is leveled, The inspection efficiency of the preform inspection equipment for transporting the preforms is reduced and it is difficult to read them at high speed.

In the preform inspecting apparatus of Patent Document 2, the connection pipe is directly connected to the lifting member so that the suction pressure value (for example, suction force) can act on the pressure sensor, and the connection pipe is connected to the vacuum pump through the vacuum pipe and the hollow . At this time, since the connecting pipe protruding from the side surface of the lifting and lowering member is connected to the vacuum pipe fixed to the supporting flat plate of the suction unit, the preform and the lifting and lowering unit itself can not rotate 360 degrees. In this case, it is impossible to take 360-degree front-side shooting while tracking the screw threads of the outer circumferential surface of the entrance of the preform, and thus it is impossible to inspect the foreign matter of the support ring protruded to the outer circumferential surface of the entrance of the preform around the screw thread.

Also, since the pressure sensor of Patent Document 2 is a digital type sensor, a measurement error may occur in the input value, that is, a difference between the actual pressure and the measured pressure.

Further, since the preform inspecting apparatus having the pressure sensor of Patent Document 2 uses only the pressure value, the preform inspecting apparatus has a fatal disadvantage which causes an error in the test result depending on the mode of wavy deformation, damage, scratch, Respectively. That is, if the leak area of wavy at the inlet of the preform is large, the preform may fall off from the adsorption mouse (for example, the adsorption port, lifting member, neck holder) during transportation. However, when the difference in the geometrical dimensions of the bending, the number of bends, the width of the bending is greatly expanded compared to the height, the bending section is large and the air leakage is large, The preform may be detached from the adsorption state because the preform may be difficult to be detected by the pressure sensor due to a reason such as a case where the preform itself is deformed and enters the inspection apparatus in a tapered state. I can not.

Further, in the preform inspecting apparatus having a pressure sensor of Patent Document 2, when a large-sized and expensive pressure sensor is used in order to increase the measurement accuracy, the manufacturing cost of the apparatus is low, There may be a lack of space for installing the display device.

In the preform inspection apparatus using the pressure sensor of Patent Document 2, only the display member connected to the central processing unit displays only the acceptance or rejection, so that the measured value measured by the pressure sensor for each ascending / Can not display.

Further, the preform inspection apparatus using the pressure sensor of Patent Document 2 is intended for a general preform, and after the secondary processing for crystallizing the inlet of the primary processed transparent preform by applying a temperature, the apparatus is opaque (e.g., white) The wavy deformation at the entrance of the preform can not be accurately detected at high speed. Particularly, the crystallized preform may be in an unstable state at a temperature of 50 to 80 degrees, which can be dimensionally deformed by an impact with a contact which is in contact with the movable body. That is, since the preform after crystallization is deformed at the lower end of the support ring of the preform only by a force of about 7.5 kg to 10 kg, the preform itself can be supplied to the inspection apparatus in a tapered form.

On the other hand, in the glass bottle inspection apparatus of Patent Document 3, a determination is made by an optical measuring method that a part of the uppermost surface of the bottle mouth is depressed in wave form, and the so-called sheath wave is detected by an optical measuring method. As a technique widely used for the purpose of improving the performance of the apparatus, a similar structure can be found in Japanese Patent Application Laid-Open No. 2002-15517.

When the wide angle of the PET bottle or the preform is not ensured, the inspection apparatus using the optical system can not detect defects such as heavenly waves or bending of the entrance and can be configured as a separate inspection apparatus, There is no means to perform all of the checks on the neck, the neck dimension, the gate cutting area and the bottom part, the inside of the neck and the neck top seal surface, the neck support ring, the screw thread and so on.

Therefore, there is a demand for a device configuration capable of inspecting, at a high speed, the bending of the uppermost part of the inlet of the container, and the inspection part related to the container as a whole.

Patent Document 1: JP-A-10-0751266 Patent Document 2: JP-A-10-0831368 Patent Document 3: Japanese Patent Application Laid-Open No. 10-2013-0031331

The embodiment of the present invention is characterized in that a leakage detection module for detecting an air leak located in a space between each suctioned mouse that sucks an object to be inspected, such as a container, And to provide a container inspection apparatus and method capable of performing accurate and high-speed inspection.

According to an aspect of the present invention, there is provided a container inspection apparatus having a turret assembly for rotating and revolving a container, comprising: a pusher coupled to the turret assembly; An air filter coupled to an upper portion of the pusher to filter intake air for adsorbing the container; A filter line connected to the air filter to receive the intake air filtered by the air filter; And a leakage detection module connected to the filter line for measuring an amount of intake air flow to detect whether the intake air is leaking due to a bending of the uppermost end of the inlet of the container.

The leakage detection module may be disposed in a space between one pusher and the other pusher of the turret assembly.

The leakage detection module may further include at least one inlet port coupled to the filter line and at least one outlet connected to the main vacuum distributor of the turret assembly for receiving the inlet air, A first distribution unit having a port; A first line connected to the first distribution port of the first distribution unit, respectively; A sensor unit having a sensor inlet connected to the first line; A second line connected to a sensor outlet of the sensor unit; A second distribution unit to which the first connection port is connected to the second line; And a third line connected between a second connection port of the second distribution unit and a second distribution port of the first distribution unit.

The first distributor may further include: a first internal passage connected to the inlet port and the first dispensing port so as to pass therethrough; And a second internal passage located under the first internal passage and partitioned from each other and connected through the outlet port and the second dispensing port.

The second distribution unit may include a connection path connecting the first connection port and the second connection port to each other.

The first line and the second line may stably suspend the sensor portion and the second distribution portion below the turret cover under an environment in which the turret cover of the turret assembly rotates at a predetermined speed And may be a hollow shaft so as to withstand the pressure of the intake air.

The third line may further include: a first hollow shaft penetratingly coupled to the second connection port of the second distribution unit; A maintenance pipe coupler penetratingly coupled to the first hollow shaft; And a second hollow shaft penetratingly coupled to the pipe coupler and the second connection port of the first distribution unit.

The sensor unit may be an air flow sensor that measures the intake air flow amount and displays the measured value numerically on a numerical value display window.

The sensor unit may be connected to a programmable logic controller (PLC) provided in the turret assembly through a wire.

This embodiment uses a support ring inspection part in a preform inspection apparatus having an in-rail, an in-in-wheel part, a turret assembly, a gate cutting part, a preform turning part, a first inspection module, an outstyle wheel part, Neck inner wall, neck dimensions, gate cutting area and bottom area, inside neck and neck top seal surface, neck support ring and screw thread inspection can be performed, while at the same time, By detecting the leakage of the intake air through each leakage detection module, it is possible to precisely and rapidly inspect the wavy top of the inlet of the container.

Particularly, the present embodiment can accurately detect the wavy deformation of the inlet of the preform crystallized according to the secondary processing at a high speed by using the air flow sensor as the leakage detection module. That is, the air flow sensor has a small curvature but a large bending section, so that the amount of air leaking is large, or when the container itself is slightly inclined and adsorbed on the bottom of the adsorption mouse, Even in the special case, the air flow sensor directly measures the intake air flow amount due to the bending between the bottom of the suction mouth and the upper end of the inlet of the container, then inputs the measured value to the computer via the PLC, To the reference value, and thereby, it is possible to exert a precise checking discriminating power with respect to the uppermost curve of the inlet of the container during the inspection of the container (for example, the neck inspection, the support ring inspection, etc.).

In addition, the present embodiment can solve the installation space problem of the leakage detection module because the leakage detection module is disposed for each space between the pusher and the pusher, and the intake air flow amount capable of grasping the leakage amount of the suction air, So that a field worker can visually check the air leakage state.

In addition, in the present embodiment, the intake air leakage amount for each adsorption mouse is displayed on an operation panel connected to the computer, so that it can easily confirm whether it is pass or fail.

1 is a perspective view for explaining a configuration of a container inspection apparatus according to the prior art.
2 is a plan view of a container inspection apparatus according to an embodiment of the present invention.
Figure 3 is a top view of the pusher and leakage detection module in the turret assembly shown in Figure 2;
4 is a cross-sectional view taken along the line AA in Fig.
5 is an enlarged cross-sectional view of circle B in Fig.
Fig. 6 is a configuration diagram for explaining the operating relationship of the pusher and the leakage detection module.
7 is a perspective view of a container inspection apparatus according to an application example of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Particularly, the present embodiment can be applied to a preform inspection apparatus referred to as a background art, and a bottle inspection apparatus for inspecting bottles such as PET bottles, juice bottles, etc., It can be applied to the above-mentioned bottle inspection apparatus, and thus can be understood by the background technology, or a configuration similar in configuration may not be included in the description of this embodiment.

2 is a plan view of a container inspection apparatus according to an embodiment of the present invention.

Referring to FIG. 2, in this embodiment, the container may refer to a preform, a bottle, a flask or the like, but it is necessary to check whether the top of the inlet is level or bent, It may not be limited to the above-mentioned preform or bottle.

The present embodiment includes a device frame 100, an in-wheel wheel 200, a turret assembly 300, a gate cutting unit 400, a preform turning unit 500, The second inspection module 800, the ejector unit 900, and the support ring inspection unit 1000, as shown in FIG. .

It should also be noted that the inhaler 106, the out rail 107, the computer 104 and the actuation panel 105 associated with the apparatus frame 100, the pushers 350 and 350 'associated with the turret assembly 300, A tensioner 511, a friction belt 501, a tensioner pulley 512, a tensioner rod 513 and a tension spring 514 associated with the one-belt tensioner 510 and a neck- A neck top seal surface inspection portion 850, a gate cutting portion and bottom portion inspection portion 810 and a neck internal inspection portion 830 and an air blower 910 associated with the ejector portion 900, The configuration and operation are disclosed in Patent Application No. 10-2012-0013002. The detailed contents related to the support ring inspection unit 1000 are disclosed in the patent application 10-2012-0055193, so that detailed description of the configurations may be omitted in order to avoid redundant description in this embodiment.

Figure 3 is a top view of the pusher and leakage detection module in the turret assembly shown in Figure 2;

Referring to FIG. 2 or 3, the leakage detection module 380 may be disposed in each space between one pusher 350 and the other pusher 350 'of the turret assembly 300.

The turret assembly 300 rotates the plurality of pushers 350 mounted with the suction mouth 351 for suctioning the container of the star wheel part 200, that is, the preform P as a kind of container, And moves up and down the pusher 350 and the preform P along the vertical direction.

The turret assembly 300 may include a guide portion 353 and a turret cam 330 for raising or lowering the pusher 350. [

That is, the turret assembly 300 includes a main shaft 303 rotated by a device driving means (not shown), a main shaft 303 coupled to an end of the main shaft 303, And a main vacuum distributor 312 coupled to the inner bearing of the turret housing 311 and bolted to the bottom surface of the fluid transfer pipe 314. [

A distributing chamber 313 is formed on the upper portion of the main vacuum distributor 312 and the upper portion of the distributing chamber 313 is connected to the fluid conveying pipe 314 for suctioning and discharging the fluid from the distributing chamber 313. [ ). The fluid transfer pipe 314 may be connected to a vacuum pump (not shown).

A distribution housing 315 coupled to the outside of the main vacuum distributor 312 rotatably while maintaining airtightness is coupled.

Since the arc-shaped hole 316 is formed only between the main vacuum distributor 312 and the distribution housing 315 within the predetermined arcuate angular section, the distribution chamber 313 and the main The distribution chamber 313 and the main piping joint 317 are closed to transmit the vacuum adsorption pressure in the section where the piping joint 317 passes through each other and the vacuum adsorption pressure, that is, I will not receive it. The arc-shaped hole 316 may mean an elongated hole formed along the outer circumferential surface of the main vacuum distributor 312.

The turret assembly 300 also includes a main turret 318 coupled to an outer flange 311a of the turret housing 311 and having a plurality of pushers 350 disposed thereon, A turret cover 320 connecting the upper portion of the turret wall 319 and the lower portion of the distribution housing 315 with the centerline of the main turret 318 to the main vacuum distributor 312 And a cam follower 354 coupled to the guide block 353b of the pusher 350 to move along the cam profile of the upper end of the turret cam portion 330 . Here, the turret cover 320 and the main turret 318 are formed with through-holes for pushers that coincide with each other.

The pusher 350 includes an adsorption mouse 351 having a positioning projection 351a on the bottom surface having surface roughness necessary for adsorption of the preform P and a suction nozzle 351 connected to the suction mouse 351 and connected to the main turret 318 A guide portion 353 for guiding the adsorption shaft 352 on the basis of the turret wall 319 and a guide portion 353 for guiding the adsorption shaft 352 to the guide portion 353 An upper roller 355 coupled to the suction shaft 352 to the outside of the turret cover 320 and a lower roller 352 rotatably bearing and sealingly coupled to the upper end of the suction shaft 352 A pusher vacuum distributor 356, and an air filter 357 piped to the pusher vacuum distributor 356, respectively.

The air filter 357 is coupled to the upper portion of the pusher 350 and may serve to filter the intake air for adsorbing the preform P as a container.

Components including lines, such as the first line 382, the second line 383, the third line 384, the dispensing line 312a, etc., including the filter line 358 described in this embodiment, Such as a first hollow shaft 384a, a pipe coupler 384b, a second hollow shaft 384c, and the like, to which the intake air may flow.

That is, the filter line 358 is connected to the air filter 357, and can receive the filtered air filtered by the air filter 357 and supply the filtered air to the first distributor 381.

One end of each filter line 358 is connected to an air filter 357 through a pipe joint and the other end of each filter line 358 is connected to an inlet port 381a of the first distributor 381, Respectively.

The present embodiment also includes a support 357a extending from the guide block 353b and a filter mount 357b extending upward from the support 357a. At this time, the air filter 357 is provided in the bracket of the filter mounting base 357b.

The guide portion 353 includes guide rails 353a arranged in the inner circumferential surface of the turret wall body 319 in correspondence with the number of the pushers 350 and the mounting position thereof and a guide block 353b sliding along the guide rails 353a ).

The guide block 353b is engaged with the attraction shaft 352 and the cam follower 354 is mounted on the block surface opposite to the guide rail 353a.

The turret cam portion 330 has a cam profile that supports the cam follower 354 below the cam follower 354 of the pusher 350.

This turret assembly 300 can rotate the suction mouse 351 of the pusher 350 while idling the pusher 350 and the leakage detection module 380. This action is described in patent application 10-2012-0013002 Lt; / RTI >

In this embodiment, a leakage detection module 380 provided for each of the suction mice 351 that simultaneously performs the rotation, the revolution, and the up-and-down movement at high speed may be provided.

The leakage detection module 380 is coupled to the filter line 358 and measures the amount of intake air flow to detect whether the intake air leaks due to bending of the upper end of the inlet of the preform P as a container .

To this end, the leakage detection module 380 may include a first distribution portion 381 disposed on the turret cover 320 of the turret assembly 300 in at least one number. The first distributor 381 includes an inlet port 381a coupled to the filter line 358 and an outlet port 382a connected to the main vacuum distributor 312 of the turret assembly 300 to receive the intake air. Port 381b. In addition, the outlet port 381b of the first distribution portion 381 may be connected to the distribution line 312a, respectively.

5 is an enlarged cross-sectional view of circle B in Fig.

Referring to Fig. 4 or 5, the arrow indicates the direction of flow of the intake air.

The leakage detection module 380 includes a first line 382 connected to the first distribution port 381c of the first distribution portion 381 and a sensor portion 389 connected to the sensor inlet 382 of the first line 382. [ A second line 383 connected to the sensor outlet of the sensor unit 389 and a second distribution unit 385 connected to the second line 383 through a first connection port 385a. have.

Here, the second distribution unit 385 includes a first connection port 385a provided on one upper surface of the second distribution unit, a second connection port 385b provided on the other upper surface of the second distribution unit, And a connection passage 385c for connecting the first connection port 385a and the second connection port 385b to each other.

The leakage detection module 380 also includes a third line 384 connected between the second connection port 385b of the second distribution portion 385 and the second distribution port 381d of the first distribution portion 381. [ ).

The first line 382 and the second line 383 are connected to the sensor portion 389 and the second distribution portion 385 under an environment in which the turret cover 320 of the turret assembly 300 rotates at a predetermined speed, Can be stably suspended below the turret cover 320 and can be a hollow shaft such as a steel pipe or the like to withstand the pressure of the intake air.

The third line 384 also includes a first hollow shaft 384a coupled through the second connection port 385b of the second distribution portion 385 and a second hollow shaft 384b penetratingly coupled to the first hollow shaft 384a And a second hollow shaft 384c coupled to the pipe coupler 384b and the second connection port 381d of the first distribution portion 381 so as to penetrate the pipe connection coupler 384b. have.

The sensor unit 389 may be an air flow sensor that measures the amount of intake air flow and displays the measured value numerically on the numerical display window 389a.

Here, the sensor portion 389, which is an air flow sensor, may have a thickness that is small enough to be placed in the space between the pushers 350 and 350 'shown in FIG. 2 or FIG.

Fig. 6 is a configuration diagram for explaining the operating relationship of the pusher and the leakage detection module.

6, the sensor unit 389 is connected to a PLC 391 (see 391 in FIG. 4) provided in the turret assembly 300 through an electric wire 390 And input the measurement value corresponding to the intake air flow amount to be displayed to the PLC 391 through the computer 104 and the operation panel 105 connected to the PLC 391. [ The PLC 391 may be mounted on a plurality of support shafts 392 protruding from the distribution housing 315 to the periphery of the fluid transfer tube 314 and a mount 393 coupled to the support shaft 392.

Hereinafter, the operation of the present embodiment will be described.

6, the pusher 350 of the turret assembly 300 sucks and rotates the preform P which is the container at the intersection of the star wheel part 200 of FIG. 2, 700 at the point of intersection with the out-star wheel 700, and transfers the pre-form P toward the out-star wheel 700.

Suction air causing an attraction force necessary for adsorption of the preform (P) can flow from the interior of the preform (P) to the main vacuum distributor (312) and then to the vacuum pump (not shown).

That is, the intake air of the preform P reaches the air filter 357 via the adsorption mouse 351 and the adsorption shaft 352. The intake air filtered by the air filter 357 flows into the first distribution portion 381 of the leakage detection module 380.

The first distribution portion 381 includes a first internal passage 381e connected to the inlet port 381a and the first distribution port 381c so as to pass therethrough and a second internal passage 381e located below the first internal passage 381e, And a second internal passageway 381f that is pierced and connected between the outlet port 381b and the second dispensing port 381d.

The intake air flowing into the first distribution portion 381 flows through the inlet port 381a, the first internal passage 381e, the first distribution port 381c and the first line 382, (389).

The intake air discharged from the sensor unit 389 is supplied to the second line 383, the first connection port 385a, the connection passage 385c, the second connection port 385b, the third line 384, 1 distributor 381 to the main vacuum distributor 312 via the second distribution port 381d and the second internal passage 381f.

In this process, the sensor unit 389 directly measures the intake air flow amount, and inputs the measurement value to the PLC 391. [ The PLC 391 inputs the measured value to the computer 104 and the computer 104 compares the measured intake air flow amount with the reference value to determine whether the defective upper end of the inlet of the preform P, , And displays the determination result on the operation panel 105. [

Here, the reference value may be a numerical value or an average value preliminarily experimentally determined for an EUT having no bend at the top of the inlet of the preform P, and may be a data value stored in advance in the inspection program of the computer 104. [ Further, the value obtained by subtracting the reference value from the intake air flow amount may be the intake air leakage amount.

At this time, the sensor unit 389 directly measures the intake air flow amount, and inputs the measurement value to the PLC 391. [ The PLC 391 inputs the measured values to the computer 104.

The computer 104 compares the intake air flow rate with the reference value and determines that the intake air flow rate is acceptable if the flow rate is within the permissible range. If the flow rate is outside the permissible range, the computer 104 can determine the failure.

If it is determined that the rejection has occurred, the computer 104 instantaneously opens the valve 991 of the blower compressor 990 via the PLC 391 at the time when the rejection preform P reaches the air blower 910 And the rejected preform P is moved and collected from the outstart wheel 700 of Fig. 2 to the collection box 920 by the high-pressure air of the air blower 910. [

7 is a perspective view of a container inspection apparatus according to an application example of the present invention.

7, the leakage detection module 380 described in detail above is arranged in a space between one pusher 350 and the other pusher 350 'of the turret assembly 300a of the bottle inspection apparatus 100a for inspecting a bottle Can be used.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

100: Device frame 106: In-rail
107: Out rail 200: In star wheel part
300, 300a: turret assembly 350, 350 ': pusher
380: Leak detection module 400: Gate cutting part
500: preform rotating part 600: first inspection module
690: Rotation attenuator 700: Out star wheel part
800: second inspection module 900: ejector part
1000: Supporting Ring Inspection Section

Claims (12)

A container inspection apparatus having a turret assembly for revolving and rotating a container,
A pusher coupled to the turret assembly;
An air filter coupled to an upper portion of the pusher to filter intake air for adsorbing the container;
A filter line connected to the air filter to receive the intake air filtered by the air filter; And
And a leakage detection module connected to the filter line for measuring an amount of intake air flow to detect whether the intake air leaks due to bending of the upper end of the inlet of the container
Container inspection device. The method according to claim 1,
The leakage detection module includes:
And is disposed for each space between one pusher and the other pusher of the turret assembly
Container inspection device. The method according to claim 1,
The leakage detection module includes:
A first distributor having at least one inlet and outlet ports in the turret cover of the turret assembly and coupled to the filter line and an outlet port connected to the main vacuum distributor of the turret assembly to receive the inlet air;
A first line connected to the first distribution port of the first distribution unit, respectively;
A sensor unit having a sensor inlet connected to the first line;
A second line connected to a sensor outlet of the sensor unit;
A second distribution unit to which the first connection port is connected to the second line; And
And a third line connected between a second connection port of the second distribution section and a second distribution port of the first distribution section
Container inspection device. The method of claim 3,
Wherein the first distributor comprises:
A first internal passage threadably connected between the inlet port and the first dispensing port; And
And a second internal passageway which is located below the first internal passageway and which is partitioned from each other and which is connected through the outlet port and the second dispensing port
Container inspection device. The method of claim 3,
Wherein the second distributor comprises:
And a connection passage connecting the first connection port and the second connection port to each other. The method of claim 3,
Wherein the first line and the second line are connected to each other,
The sensor portion and the second distributing portion can be stably suspended below the turret cover under an environment in which the turret cover of the turret assembly rotates at a predetermined speed, Characterized in that the shaft
Container inspection device. The method of claim 3,
In the third line,
A first hollow shaft coupled through the second connection port of the second distribution unit;
A maintenance pipe coupler penetratingly coupled to the first hollow shaft; And
And a second hollow shaft coupled through the pipe coupler and the second connection port of the first distribution unit
Container inspection device. The method of claim 3,
The sensor unit includes:
And an air flow sensor for measuring an intake air flow amount and displaying the measured value numerically on a numerical value display window
Container inspection device. 8. The method of claim 7,
The sensor unit is connected to a programmable logic controller (PLC) provided in the turret assembly through a wire
Container inspection device. The pusher of the turret assembly rotating and revolving the container is attracted and rotated at a point of intersection with an in-star wheel portion located at one side of the turret assembly, and then rotated at a point of intersection with the out- A container inspection method for dropping a container into a preform and delivering the preform to the outstart wheel part,
Causing the intake air causing an attraction force necessary for adsorption of the container to reach the air filter from the inside of the container via the adsorption mouth of the pusher and the adsorption shaft,
A step of introducing the intake air filtered in the air filter toward the first distribution portion of the leakage detection module,
The intake air of the first distribution portion flows into the sensor portion via the inlet port of the first distribution portion, the first internal passage, the first distribution port, and the first line,
A second line connected to the second line, a third line connected to the second line, a second line connected to the second line, a second line connected to the second line, , A second distribution port of the first distributor and a second internal passage to the main vacuum distributor
Container Inspection Method. 11. The method of claim 10,
The sensor unit directly measures the intake air flow rate, and inputs the measured value to the PLC
Container Inspection Method. 12. The method of claim 11,
The PLC inputs the measured value to the computer and the computer compares the measured intake air flow amount with a reference value to determine whether or not the upper end of the inlet of the vessel is defective against bending, To display
Container Inspection Method.

Images