WO2017047250A1 - パリソン異物検出システム - Google Patents
パリソン異物検出システム Download PDFInfo
- Publication number
- WO2017047250A1 WO2017047250A1 PCT/JP2016/072284 JP2016072284W WO2017047250A1 WO 2017047250 A1 WO2017047250 A1 WO 2017047250A1 JP 2016072284 W JP2016072284 W JP 2016072284W WO 2017047250 A1 WO2017047250 A1 WO 2017047250A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- parison
- determination
- foreign object
- detection system
- infrared
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/08—Feeding of the material to be moulded, e.g. into a mould cavity of preforms to be moulded, e.g. tablets, fibre reinforced preforms, extruded ribbons, tubes or profiles; Manipulating means specially adapted for feeding preforms, e.g. supports conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/80—Testing, e.g. for leaks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C2049/7874—Preform or article shape, weight, defect or presence
- B29C2049/7876—Defects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0027—Cutting off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0063—Cutting longitudinally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92295—Errors or malfunctioning, e.g. for quality control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92304—Presence or absence; Sequence; Counting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92428—Calibration, after-treatment, or cooling zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42065—Means specially adapted for transporting preforms
- B29C49/42067—Extruded preforms, e.g. providing means for avoiding deformation of the soft preform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42378—Handling malfunction
- B29C49/4238—Ejecting defective preforms or products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/02—Combined thermoforming and manufacture of the preform
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/9081—Inspection especially designed for plastic containers, e.g. preforms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/909—Investigating the presence of flaws or contamination in a container or its contents in opaque containers or opaque container parts, e.g. cans, tins, caps, labels
Definitions
- the present invention relates to a parison foreign object detection system.
- Patent Document 1 describes that a parison is imaged with a CCD camera, and the presence / absence of a foreign object is detected by electrically processing the parison image data.
- the present invention was created to solve such a problem, and an object of the present invention is to provide a parison foreign object detection system capable of detecting an internal foreign object even for an opaque parison.
- the present invention is a system for detecting a foreign substance of a parison continuously ejected from a dispenser, the infrared camera detecting an infrared ray emitted from the parison, and a detection by the infrared camera And a determination unit that determines whether or not there is a foreign object in the parison based on the infrared rays.
- the present invention by detecting the infrared rays emitted from the parison, foreign matter inside the parison can be detected even if the parison is opaque.
- the present invention includes a storage unit in which a determination area is partially set for the parison and stores an infrared threshold value set for the determination area, and the determination unit includes a detection value of the infrared camera and The threshold value is compared.
- the detection range of the foreign matter can be limited to a desired range, it is possible to suppress the occurrence of a defective product more than necessary.
- the present invention is characterized in that a plurality of determination areas having different threshold values are set.
- the tolerance of foreign matter can be changed for each judgment area, it is possible to further suppress the occurrence of a defective product more than necessary.
- the present invention is characterized in that a non-determination area where no determination is performed is further set for the parison, and the determination area is an area including a component mounting portion.
- the present invention is characterized by comprising a control unit that issues a disposal instruction for the parison when the determination unit determines that there is a foreign object.
- the defective parison can be discarded with a simple configuration.
- control unit issues the discard command to a transporter that transports the separated parison.
- a defective parison can be discarded with a simpler configuration by using a transporter.
- the present invention is characterized in that the parison discharged from the discharger has an arc shape in a plan view, and a plurality of the infrared cameras are arranged around the parison.
- the parison exhibiting an arc shape in a plan view as a detection range of infrared rays over the entire circumference.
- the present invention by detecting the infrared rays emitted from the parison, foreign matter inside the parison can be detected even if the parison is opaque.
- a parison foreign object detection system 1 is a system that detects a foreign object 12 (FIG. 3) of a parison 11 continuously discharged from a discharger 21, and detects infrared rays emitted from the parison 11.
- An infrared camera 2 and a control device 3 are provided.
- the control device 3 includes a determination unit 4, a storage unit 5, and a control unit 6.
- a personal computer can be used as the control device 3.
- the discharger 21 is configured to include a die and a core, and the parison 11 is discharged from the annular discharge port formed on the bottom surface of the discharger 21 into a cylindrical shape and discharged downward.
- FIG. 1 shows a mode in which a parison 11 is divided into a pair of parison pieces each having a semicircular arc shape in plan view and is extended downward by a cutter (not shown) arranged at a discharge port of the discharger 21. ing.
- the infrared camera 2 is provided as a pair at a position facing the parison 11 approximately 180 degrees so that each parison piece can be photographed.
- the shape of the parison is not limited to this, and the parison may be discharged downward in a cylindrical shape without being divided in half.
- the parison 11 may be ejected downward in a substantially planar shape.
- FIG. 3 shows an example of the layer structure of the parison 11 when the molded product is an automobile fuel tank.
- the layer configuration is four types and six layers in which a thermoplastic resin layer 11A, an adhesive layer 11B, a barrier layer 11C, an adhesive layer 11D, a reproduction layer 11E, and a thermoplastic resin layer 11F are formed in this order from the inside of the tank.
- the thermoplastic resin layers 11A and 11F are made of, for example, HDPE (high density polyethylene).
- the barrier layer 11C is formed of a material excellent in fuel impermeability, for example, EVOH (ethylene-vinyl alcohol copolymer).
- the reclaimed layer 11E is formed of a reclaimed material obtained by melting and mixing burrs obtained by deburring the fuel tank and those that have failed in the molding process or inspection process.
- the foreign material 12 is mainly present in the reproduction layer 11E. Since the parison 11 is opaque, the foreign matter 12 in the reproduction layer 11E is difficult to identify by visual inspection. Since the infrared camera 2 detects infrared rays emitted from the foreign matter 12, the foreign matter 12 can be effectively detected even if the parison 11 is opaque.
- the amount of infrared energy emitted from the object is expressed by equation (1).
- Q ⁇ ⁇ ⁇ ⁇ T 4
- Q Infrared energy amount [W / m 2 ]
- ⁇ Emissivity
- ⁇ Stefan-Boltzmann coefficient 5.67 ⁇ 10 ⁇ 8 [W / m 2 K 4 ]
- T Absolute temperature [K]
- the emissivity ⁇ in Equation (1) is a value that varies depending on the material and surface state of the object. Therefore, when the emissivity ⁇ of the reproduction layer 11E and the foreign matter 12 is different, the infrared energy amount changes only in the portion where the foreign matter 12 exists, and the foreign matter 12 can be specified by detecting this with the infrared camera 2.
- the infrared camera 2 includes a detection element that absorbs infrared rays (7.5 ⁇ m to 13 ⁇ m) in electromagnetic waves, and a temperature sensor that detects a temperature change of the detection element that absorbs infrared rays and rises in temperature. Based on the temperature distribution of the temperature sensor, a signal of the temperature distribution image of the imaging area is output to the outside.
- FIG. 4 shows a temperature distribution image obtained by photographing the lower part of the cylindrical parison with the infrared camera 2 and displaying it on the monitor 9 (FIG. 1).
- A) is before the filtering process
- (b) is the filtering process. It is a later image. By performing the filter processing, the presence or absence of the foreign matter 12 can be easily visually confirmed on the monitor 9.
- the determination unit 4 determines whether or not the foreign object 12 exists in the parison 11 based on the detection value D1 of the infrared camera 2, specifically, the signal relating to the temperature distribution image described above.
- the fuel tank T which is a molded product of the parison, has a pump mounting seat 13 for mounting a fuel pump (not shown) and an absorber (not shown) for suppressing the ripple of fuel in the tank. ) Are attached to the absorber mounting seats 14A and 14B.
- the shape of the pump mounting seat 13 and the absorber mounting seats 14A and 14B may be poor, which may hinder the mounting of the fuel pump and the absorber. There is. On the other hand, there may be no problem even if the foreign matter 12 is present in the part not mounted.
- a determination area and a non-determination area are set in the discharge direction of the parison 11 with respect to the parison 11 having a predetermined length (a length necessary for single-molding a molded product such as a fuel tank).
- the determination area is an area where determination by the determination unit 4 is performed
- the non-determination area is an area where determination by the determination unit 4 is not performed.
- FIG. 5 shows an example in which the non-determination area 16A, the determination area 15A, the non-determination area 16B, the determination area 15B, and the non-determination area 16C are set in order from the discharge direction downstream side of the parison 11.
- the determination area 15A is an area including the pump mounting seat 13 and the absorber mounting seat 14A
- the determination area 15B is an area including the absorber mounting seat 14B. That is, the determination areas 15A and 15B are areas including the component mounting portion.
- the non-determination areas 16A to 16C are areas that do not include a component mounting portion.
- the storage unit 5 stores an infrared threshold D2 set for the determination areas 15A and 15B.
- the threshold value D2 of the determination area 15A and the threshold value D2 of the determination area 15B may be the same value or different values.
- the determination unit 4 compares the detection value D1 input from the infrared camera 2 with the threshold value D2 stored in the storage unit 5, and when the detection value D1 is larger than the threshold value D2, the foreign matter 12 exists in the determination areas 15A and 15B. Judge that.
- the control unit 6 When the determination unit 4 determines that the foreign object 12 exists, the control unit 6 issues a disposal instruction for the parison 11 having the predetermined length. Below the discharger 21, a cutter 7 (FIG. 6) for cutting the upper end of the parison 11 discharged to a predetermined length, and a part around the upper end of the cut parison 11 for conveying to a molding die (not shown). A conveyor 8 (FIG. 6) is arranged, and the control unit 6 issues the discard command to the conveyor 8. As a result, the transport device 8 does not transport the parison 11 that has become defective due to the foreign matter 12 to the mold, but transports it to a predetermined disposal location and discards it.
- FIG. 6A shows a state before the parison 11 is discharged, and the cutter 7 and the conveyor 8 are in the standby position.
- FIG. 6B when the parison 11 is discharged, the outer surface side of the upstream side of the parison 11 is photographed by the pair of infrared cameras 2.
- the determination unit 4 compares the detection value D1 of the infrared camera 2 with the threshold value D2 stored in the storage unit 5, and determines whether or not the foreign matter 12 exists in the determination areas 15A and 15B.
- the ranges of the determination areas 15A and 15B can be easily specified from the discharge speed (discharge elapsed time) of the parison 11.
- the parison 11 separated by a predetermined length is transported to the mold by the transport device 8.
- the control unit 6 sends a discard command to the transporter 8 so that a predetermined length is obtained as shown in FIG.
- the separated parison 11 is transported to a disposal place by the transporter 8.
- the determination unit 4 that determines whether or not the foreign object 12 exists in the parison 11 based on the infrared rays detected by the infrared camera 2, If the parison 11 is opaque, the foreign matter 12 inside the parison 11 can be detected.
- the determination areas 15A and 15B are partially set for the parison 11, and the storage section 5 for storing the infrared threshold value D2 set for the determination areas 15A and 15B is provided. If the detection value D1 and the threshold value D2 are compared, the detection range of the foreign matter 12 can be limited to a desired range, so that it is possible to suppress the occurrence of unnecessary defects in the molded product. In particular, if a plurality of determination areas 15A and 15B having different threshold values D2 are set, the tolerance of foreign matter can be changed for each determination area, so that it is possible to further suppress the occurrence of unnecessary defects in the molded product.
- the non-determination areas 16A to 16C that do not perform the determination are partially set for the parison 11, and the determination areas 15A and 15B are areas including the component mounting part, foreign matter on the component mounting part While preventing the influence of 12, the generation
- the defective parison 11 can be discarded with a simple configuration.
- the control unit 6 issues a discard command to the transporter 8 that transports the separated parison 11, the defective parison 11 can be discarded with a simpler configuration.
- the parison 11 discharged from the discharger 21 has an arc shape in a plan view (including a cylindrical shape)
- a parison that exhibits an arc shape in the plan view. 11 can be an infrared detection range over the entire circumference.
- the parison 11 having a predetermined length is divided into a determination area and a non-determination area.
- the threshold D2 may be set to be different from each other as a plurality of determination areas without providing the non-determination area. Good.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Robotics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
Q=ε・σ・T4 …式(1)
Q:赤外線エネルギー量[W/m2]
ε:放射率
σ:シュテファン・ボルツマン係数 5.67×10-8[W/m2K4]
T:絶対温度[K]
パリソン異物検出システム1の作用を説明する。図6(a)はパリソン11が吐出される前の状態であり、カッター7および搬送機8が待機位置にある。図6(b)に示すように、パリソン11が吐出されると、パリソン11の上流側の外表面側が一対の赤外線カメラ2により撮影される。判定部4は、赤外線カメラ2の検出値D1と記憶部5に記憶した閾値D2とを比較し、判定エリア15A,15Bに異物12が存在するか否かの判定を行う。なお、判定エリア15A,15Bの範囲はパリソン11の吐出速度(吐出経過時間)から容易に特定することができる。
2 赤外線カメラ
3 制御装置
4 判定部
5 記憶部
6 制御部
7 カッター
8 搬送機
15A,15B 判定エリア
16A,16B,16C 非判定エリア
Claims (7)
- 吐出機から連続的に吐出されるパリソンの異物を検出するシステムであって、
前記パリソンから放出される赤外線を検出する赤外線カメラと、
前記赤外線カメラで検出された赤外線に基づいてパリソンに異物が存在するか否かを判定する判定部と、
を備えることを特徴とするパリソン異物検出システム。 - 前記パリソンに対し部分的に判定エリアが設定され、
前記判定エリアに対し設定された赤外線の閾値を記憶する記憶部を備え、
前記判定部は、前記赤外線カメラの検出値と前記閾値とを比較することを特徴とする請求項1に記載のパリソン異物検出システム。 - 前記閾値の異なる複数の判定エリアが設定されていることを特徴とする請求項2に記載のパリソン異物検出システム。
- 前記パリソンに対し部分的に、判定を行わない非判定エリアがさらに設定され、
前記判定エリアは、部品の装着部を含むエリアであることを特徴とする請求項2に記載のパリソン異物検出システム。 - 前記判定部が異物が存在すると判定したときにそのパリソンの廃棄指令を出す制御部を備えていることを特徴とする請求項1に記載のパリソン異物検出システム。
- 前記制御部は、前記廃棄指令を、切り離されたパリソンを搬送する搬送機に出すことを特徴とする請求項5に記載のパリソン異物検出システム。
- 前記吐出機から吐出されるパリソンは平断面視円弧状であり、
前記赤外線カメラは、前記パリソンの周囲に複数配置されることを特徴とする請求項1に記載のパリソン異物検出システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017539752A JP6349038B2 (ja) | 2015-09-15 | 2016-07-29 | パリソン異物検出システム |
CN201680052854.1A CN108136657B (zh) | 2015-09-15 | 2016-07-29 | 型坯异物检测系统 |
US15/760,592 US10286592B2 (en) | 2015-09-15 | 2016-07-29 | Parison foreign matter detection system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-181878 | 2015-09-15 | ||
JP2015181878 | 2015-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017047250A1 true WO2017047250A1 (ja) | 2017-03-23 |
Family
ID=58288803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/072284 WO2017047250A1 (ja) | 2015-09-15 | 2016-07-29 | パリソン異物検出システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US10286592B2 (ja) |
JP (1) | JP6349038B2 (ja) |
CN (1) | CN108136657B (ja) |
WO (1) | WO2017047250A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0382504A (ja) * | 1989-08-25 | 1991-04-08 | Mazda Motor Corp | 多層パリソンの押出成形装置および方法 |
JPH09234783A (ja) * | 1996-02-29 | 1997-09-09 | Mitsubishi Chem Corp | ダイレクトブロー成形における溶融パリソンのドローダウンの測定方法 |
JP2000146851A (ja) * | 1998-11-16 | 2000-05-26 | Mitsubishi Plastics Ind Ltd | 透光性物品の検査装置及び方法 |
JP2014134461A (ja) * | 2013-01-10 | 2014-07-24 | Toyo Seikan Kaisha Ltd | プリフォーム検査方法及びプリフォーム検査装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5931437A (ja) | 1982-08-17 | 1984-02-20 | Toppan Printing Co Ltd | 中空成形品の異物検出方法 |
US5288441A (en) * | 1992-12-24 | 1994-02-22 | Collins Steven L | System and method for extruder frost line detection |
EP1378336A1 (en) * | 2002-07-02 | 2004-01-07 | ATOFINA Research | Polymer processability evaluation through on-line processing |
DE102008052608B3 (de) * | 2008-10-21 | 2010-05-20 | Feuerherm, Harald, Dipl.-Ing. | Verfahren zur Herstellung von Kunststoffhohlkörpern durch Blasformen |
US9146099B2 (en) * | 2010-07-07 | 2015-09-29 | Graham Packaging Company, L.P. | Method and system for thermally monitoring process for forming plastic blow-molded containers |
CN203242159U (zh) * | 2013-05-15 | 2013-10-16 | 江苏翔盟精密铸造有限公司 | 一种智能红外探伤检测系统 |
CN104139517B (zh) * | 2014-07-22 | 2017-01-18 | 广州市合诚化学有限公司 | 一种填充物含量快速检测设备及方法 |
-
2016
- 2016-07-29 WO PCT/JP2016/072284 patent/WO2017047250A1/ja active Application Filing
- 2016-07-29 US US15/760,592 patent/US10286592B2/en active Active
- 2016-07-29 CN CN201680052854.1A patent/CN108136657B/zh active Active
- 2016-07-29 JP JP2017539752A patent/JP6349038B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0382504A (ja) * | 1989-08-25 | 1991-04-08 | Mazda Motor Corp | 多層パリソンの押出成形装置および方法 |
JPH09234783A (ja) * | 1996-02-29 | 1997-09-09 | Mitsubishi Chem Corp | ダイレクトブロー成形における溶融パリソンのドローダウンの測定方法 |
JP2000146851A (ja) * | 1998-11-16 | 2000-05-26 | Mitsubishi Plastics Ind Ltd | 透光性物品の検査装置及び方法 |
JP2014134461A (ja) * | 2013-01-10 | 2014-07-24 | Toyo Seikan Kaisha Ltd | プリフォーム検査方法及びプリフォーム検査装置 |
Also Published As
Publication number | Publication date |
---|---|
CN108136657A (zh) | 2018-06-08 |
JP6349038B2 (ja) | 2018-07-04 |
JPWO2017047250A1 (ja) | 2018-06-14 |
CN108136657B (zh) | 2019-05-17 |
US20180250870A1 (en) | 2018-09-06 |
US10286592B2 (en) | 2019-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI518583B (zh) | 立體列印裝置及其列印異常偵測方法 | |
US10811652B2 (en) | Defect inspection device | |
US11322795B2 (en) | Method for producing separator roll | |
JP2009063362A (ja) | 侵入検知装置 | |
KR102489513B1 (ko) | 결함 검사 장치, 결함 검사 방법, 세퍼레이터 권회체의 제조 방법 및 세퍼레이터 권회체 | |
US10983067B2 (en) | Device and method for optical monitoring of surfaces of an object | |
TWI490447B (zh) | Fold detection device and crease detection method | |
US10732125B2 (en) | Defect inspection device, defect inspection method, method for producing separator roll, and separator roll | |
JP5166897B2 (ja) | シートロールの検査装置及び検査方法 | |
JP6349038B2 (ja) | パリソン異物検出システム | |
JP5161905B2 (ja) | 錠剤検査装置及びptp包装機 | |
CN106364093A (zh) | 一种流延聚丙烯膜及其制备方法 | |
JP6059163B2 (ja) | 画像形成装置 | |
JP2013078059A5 (ja) | ||
AU2018256031B2 (en) | Bag manufacturing machine | |
JP2010038863A (ja) | 扁平ワークの外観検査装置および外観検査方法 | |
KR102402842B1 (ko) | 글래스 물품의 제조 장치 | |
JP2007261775A (ja) | 錠剤等の包装装置におけるフィルムの蛇行修正装置及びこれを備えた錠剤等の包装装置 | |
JP2012218419A (ja) | インクジェット記録装置 | |
JP2008120439A (ja) | 紙容器フラップ検査装置と紙容器フラップ検査方法 | |
CN205324101U (zh) | 一种印铁涂布机走位检测装置 | |
JP6943168B2 (ja) | 検査システムおよび検査方法 | |
JP2761595B2 (ja) | 多層パリソンの押出成形装置および方法 | |
JP2013086264A (ja) | アンダートレッド貼付装置 | |
JP2008164400A (ja) | シートロール形状不良判別装置及び判別方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16846123 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017539752 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15760592 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16846123 Country of ref document: EP Kind code of ref document: A1 |