WO2017199488A1 - Procédé et dispositif pour alimenter une trémie à sable en sable de fonderie - Google Patents

Procédé et dispositif pour alimenter une trémie à sable en sable de fonderie Download PDF

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Publication number
WO2017199488A1
WO2017199488A1 PCT/JP2017/004914 JP2017004914W WO2017199488A1 WO 2017199488 A1 WO2017199488 A1 WO 2017199488A1 JP 2017004914 W JP2017004914 W JP 2017004914W WO 2017199488 A1 WO2017199488 A1 WO 2017199488A1
Authority
WO
WIPO (PCT)
Prior art keywords
sand
hopper
sand hopper
foundry
molding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/004914
Other languages
English (en)
Japanese (ja)
Inventor
信幸 河合
山口　広
剛大 杉野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to CN201780002953.3A priority Critical patent/CN107921525A/zh
Priority to JP2018518082A priority patent/JPWO2017199488A1/ja
Publication of WO2017199488A1 publication Critical patent/WO2017199488A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/14—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
    • B22C5/16—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material with conveyors or other equipment for feeding the material

Definitions

  • the present invention relates to a method and apparatus for supplying foundry sand to a sand hopper for foundry sand supplied to a mold making machine.
  • a sand hopper is used to temporarily store the foundry sand after kneading the foundry sand supplied to the mold making machine with a kneader.
  • the sand hopper is provided with a level switch as means for detecting foundry sand as disclosed in Patent Document 1.
  • This level switch is installed for the purpose of supplying the foundry sand to the sand hopper when the foundry sand amount falls below a predetermined amount, for example.
  • the level switch only knows whether or not there is sand at the place where it was installed, and could not continuously grasp the total amount of sand in the sand hopper. For this reason, when performing control according to the amount of sand in the sand hopper, a plurality of level switches must be used, and there is a problem that the labor for adjusting the mounting position is further increased.
  • the object of the present invention is to easily adjust the sand hopper's foundry sand detecting means, and to detect the total amount of sand in the sand hopper by this detecting means and to control the supply of the foundry sand. It is an object to provide a method and apparatus for supplying foundry sand to a sand hopper, which can eliminate waste.
  • the casting sand supply method to the sand hopper of the present invention made to solve the above problems is provided in the sand hopper in the sand hopper for storing the casting sand adjusted to be supplied to the molding machine.
  • the amount of foundry sand in the sand hopper is detected by a laser sensor, and when the detected result falls below a set lower limit value, the foundry sand is supplied to the sand hopper.
  • the amount of foundry sand in the sand hopper is detected by a laser sensor, and when the detection result falls below a set lower limit value, the molding quantity data up to the end time is obtained.
  • the sand found necessary for the remaining molding quantity is supplied to the sand hopper.
  • the casting sand supply device to the sand hopper of the present invention includes a kneader for adjusting the casting sand supplied to the molding machine, a sand hopper for storing the casting sand, a laser sensor provided in the sand hopper, and a laser sensor.
  • the amount of foundry sand in the sand hopper is detected by a laser sensor, and when the detection result falls below the set lower limit value, the molding quantity data up to the closing time is received from the molding machine, and the molding until the closing time is received.
  • the quantity data is equal to or less than the reference quantity, it further includes an arithmetic unit that calculates the amount of foundry sand required for the remaining molding quantity and controls to supply the required amount of foundry sand to the sand hopper. It is a feature.
  • Such a configuration makes it possible to store only the necessary amount of sand up to the end time in the sand hopper, and the work can be completed without leaving the kneaded cast sand. As a result, there is an advantage that it is not necessary to consume extra energy.
  • the casting sand supply device to the sand hopper is arranged so that a plurality of laser sensors provided in the sand hopper are aligned in the traveling direction of the belt feeder across the casting sand inlet provided in the top plate of the sand hopper. It is provided in the board.
  • the apparatus for supplying the foundry sand to the sand hopper is characterized in that a vibrator is provided in the sand hopper.
  • the shelves can be eliminated by vibrating the sand hopper with a vibrator.
  • the present invention it is possible to easily detect the sand volume of the sand hopper by using the laser sensor. For this reason, the condition for supplying the foundry sand into the sand hopper can be easily performed only by changing the set value, and adjustment of the mounting position of the laser sensor is not necessary. Further, by using the laser sensor, it is possible to control the supply of fine foundry sand and to eliminate waste.
  • FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. 2, where (A) shows a case where there are two laser sensors, and (B) shows a case where there are four laser sensors. It is a fragmentary sectional front view which shows typically the modification of the foundry sand supply apparatus to the sand hopper in this invention.
  • a sand hopper 11 is provided as a temporary place for storing foundry sand.
  • the foundry sand is adjusted by the kneader 16 and then fed into the sand hopper 11 by the belt conveyor 13.
  • the foundry sand 17 stored in the sand hopper 11 is discharged from the sand hopper 11 by the belt feeder 14 in accordance with the molding timing of the molding machine 15 and is put into the molding machine 15.
  • the shape of the sand hopper 11 is not particularly limited, but it is preferable that the horizontal cross-sectional shape is circular or rectangular.
  • the sand hopper 11 has a top plate 19 at an upper portion, and a casting sand inlet 18 is formed at the center (see FIG. 3).
  • the foundry sand thrown in from the foundry sand inlet 18 is generally deposited in the sand hopper 11 in a shape having a high central portion and a low periphery (see FIG. 2).
  • a laser sensor 12 is provided on the top of the sand hopper 11, and the linear distance from the position of the laser sensor 12 to the position of the surface of the foundry sand 17 stored in the sand hopper 11 is measured. can do. Since the amount of foundry sand can be estimated from this measured value, a signal is transmitted to the kneader 16 when the laser sensor 12 falls below a predetermined value set in advance, and the sand from the kneader 16 via the belt conveyor 13 is transmitted. Foundry sand is supplied to the hopper 11.
  • the laser sensor 12 may include a control system.
  • FIG. 3 shows the mounting position of the laser sensor 12 of this apparatus.
  • the mounting position of the laser sensor 12 is on the downstream side (12a) and the upstream side (12b) of the belt feeder 14 in the traveling direction across the casting sand inlet 18 provided at the center of the top plate 19 of the sand hopper 11.
  • Each one (FIG. 3A) or two each (FIG. 3B) is arranged so as to be parallel to the traveling direction of the belt feeder 14. Since the laser sensor 12 is disposed on the downstream side and the upstream side in the traveling direction of the belt feeder 14 with the foundry sand inlet 18 interposed therebetween, the height of the foundry sand 17 on both sides sandwiching the apex of the accumulated foundry sand 17. Can be measured.
  • the height may be different between the downstream side and the upstream side in the carrying-out direction. Even in that case, the accuracy of estimation of the amount of foundry sand 17 can be improved by measuring on both sides.
  • the laser sensor 12 is not necessarily parallel to the traveling direction of the belt feeder 14, but may be arranged side by side in the traveling direction.
  • a signal is transmitted to the kneader 16, and the belt conveyor 13 is moved from the kneader 16. It is preferable to control the foundry sand to be supplied to the sand hopper 11 via the route.
  • a signal may be transmitted when only one of the laser sensors 12 falls below a predetermined value, or a signal may be transmitted when the sum of measured values of all the laser sensors 12 falls below a predetermined value.
  • the laser sensor 12 when the amount of foundry sand in the sand hopper 11 reaches the reference upper limit amount, or even when the upper limit amount is abnormal or the abnormal lower limit amount, the device is not increased like a level switch. It becomes possible to respond. For this reason, the cost concerning an apparatus and the effort of attachment adjustment can be saved.
  • the mounting position in that case is preferably a position close to the foundry sand inlet 18.
  • FIG. 4 shows a modification of the present invention.
  • the laser sensor 12 provided on the top plate of the sand hopper 11 measures the linear distance from the position of the laser sensor 12 to the position of the surface of the foundry sand 17 stored in the sand hopper 11, and calculates these measured values.
  • the computing device 21 computes the average value of measured values, for example, and estimates the amount of foundry sand.
  • the molding quantity data transmitted from the molding machine 15 to the computing device 21 up to the end time is received from the molding machine 15.
  • the foundry sand is supplied to the sand hopper 11.
  • the molding sand necessary for the remaining molding up to the closing time is calculated, and the casting is sent to the sand hopper 11.
  • a predetermined amount of foundry sand is supplied to the sand hopper 11.
  • the predetermined amount is, for example, an amount of foundry sand for filling the sand hopper 11.
  • the arithmetic device 21 may be included in a control device (not shown) such as a molding sand supply device, a molding machine, or a molding unit combining these.
  • the present invention it is possible to easily detect the sand volume of the sand hopper by using the laser sensor. For this reason, the condition for supplying the foundry sand into the sand hopper can be easily performed only by changing the set value, and adjustment of the mounting position of the laser sensor is not necessary. Further, by using the laser sensor, it is possible to control the supply of fine foundry sand and to eliminate waste.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour alimenter une trémie à sable (11) en sable de fonderie, permettant ainsi de régler facilement la fixation d'un moyen de détection de sable de fonderie (17) à la trémie à sable (11) et de réduire les pertes en commandant l'alimentation en sable de fonderie par l'utilisation des moyens de détection. Ce procédé et ce dispositif d'alimentation d'une trémie à sable (11) en sable de fonderie consistent à détecter la quantité de sable de fonderie (17) dans la trémie à sable au moyen d'un capteur laser (12) qui équipe la trémie à sable (11), et à fournir du sable de fonderie à la trémie à sable (11) lorsque le résultat de détection est inférieur à une valeur limite inférieure définie.
PCT/JP2017/004914 2016-05-19 2017-02-10 Procédé et dispositif pour alimenter une trémie à sable en sable de fonderie Ceased WO2017199488A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780002953.3A CN107921525A (zh) 2016-05-19 2017-02-10 向砂斗供给型砂的型砂供给方法以及型砂供给装置
JP2018518082A JPWO2017199488A1 (ja) 2016-05-19 2017-02-10 サンドホッパーへの鋳物砂供給方法およびその装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-100471 2016-05-19
JP2016100471 2016-05-19

Publications (1)

Publication Number Publication Date
WO2017199488A1 true WO2017199488A1 (fr) 2017-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/004914 Ceased WO2017199488A1 (fr) 2016-05-19 2017-02-10 Procédé et dispositif pour alimenter une trémie à sable en sable de fonderie

Country Status (4)

Country Link
JP (1) JPWO2017199488A1 (fr)
CN (1) CN107921525A (fr)
TW (1) TW201741047A (fr)
WO (1) WO2017199488A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112893764A (zh) * 2021-01-21 2021-06-04 大连理工大学 一种可用于光纤激光加工的3d打印覆膜硅砂及其制备方法
CN113636360A (zh) * 2021-07-22 2021-11-12 无锡锡南铸造机械股份有限公司 一种浅地坑落砂系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7405039B2 (ja) * 2019-08-20 2023-12-26 新東工業株式会社 鋳物砂供給装置、鋳物砂検査システム、及び鋳物砂採取方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48107817U (fr) * 1972-03-21 1973-12-13
JPH08178732A (ja) * 1994-12-27 1996-07-12 Nittetsu Mining Co Ltd レーザー光によるレベル検出方法および装置
JPH09285842A (ja) * 1996-04-23 1997-11-04 Toyota Motor Corp 鋳型造型砂の砂補給方法およびその装置
JPH1034282A (ja) * 1996-07-26 1998-02-10 Aisin Takaoka Ltd 鋳砂供給方法及び装置
JPH10113744A (ja) * 1996-10-11 1998-05-06 Sintokogio Ltd 鋳物砂の混練供給システム
JP2009183984A (ja) * 2008-02-07 2009-08-20 Sintokogio Ltd 鋳型造型設備

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987950A (ja) * 1982-11-12 1984-05-21 Sintokogio Ltd 鋳物砂の水分調整方法
JP4706511B2 (ja) * 2006-03-08 2011-06-22 マツダ株式会社 鋳型造型方法及びその装置
CN102233405A (zh) * 2010-04-27 2011-11-09 于彦奇 一种数字化树脂砂再生系统
CN102009138A (zh) * 2010-12-02 2011-04-13 苏州苏铸成套装备制造有限公司 砂料检测结构
CN103406498B (zh) * 2013-08-26 2015-12-02 苏州明志科技有限公司 一种制芯机定量加砂方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48107817U (fr) * 1972-03-21 1973-12-13
JPH08178732A (ja) * 1994-12-27 1996-07-12 Nittetsu Mining Co Ltd レーザー光によるレベル検出方法および装置
JPH09285842A (ja) * 1996-04-23 1997-11-04 Toyota Motor Corp 鋳型造型砂の砂補給方法およびその装置
JPH1034282A (ja) * 1996-07-26 1998-02-10 Aisin Takaoka Ltd 鋳砂供給方法及び装置
JPH10113744A (ja) * 1996-10-11 1998-05-06 Sintokogio Ltd 鋳物砂の混練供給システム
JP2009183984A (ja) * 2008-02-07 2009-08-20 Sintokogio Ltd 鋳型造型設備

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112893764A (zh) * 2021-01-21 2021-06-04 大连理工大学 一种可用于光纤激光加工的3d打印覆膜硅砂及其制备方法
CN113636360A (zh) * 2021-07-22 2021-11-12 无锡锡南铸造机械股份有限公司 一种浅地坑落砂系统

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TW201741047A (zh) 2017-12-01
CN107921525A (zh) 2018-04-17
JPWO2017199488A1 (ja) 2019-03-14

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