WO2022097610A1 - 粉体供給装置 - Google Patents

粉体供給装置 Download PDF

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Publication number
WO2022097610A1
WO2022097610A1 PCT/JP2021/040286 JP2021040286W WO2022097610A1 WO 2022097610 A1 WO2022097610 A1 WO 2022097610A1 JP 2021040286 W JP2021040286 W JP 2021040286W WO 2022097610 A1 WO2022097610 A1 WO 2022097610A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
supply
container
unit
stocker
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/JP2021/040286
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
知憲 関
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.)
Tsukasa Co Ltd
Original Assignee
Tsukasa Co 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 Tsukasa Co Ltd filed Critical Tsukasa Co Ltd
Priority to EP21889163.8A priority Critical patent/EP4242146B1/en
Priority to JP2022522572A priority patent/JP7109847B1/ja
Priority to CN202180065407.0A priority patent/CN116249662A/zh
Priority to KR1020237009530A priority patent/KR102863811B1/ko
Publication of WO2022097610A1 publication Critical patent/WO2022097610A1/ja
Priority to US18/192,209 priority patent/US12466671B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/32—Filling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/005—Control arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
    • G01G19/24—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them using a single weighing apparatus
    • G01G19/30—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them using a single weighing apparatus having electrical weight-sensitive devices
    • G01G19/306—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them using a single weighing apparatus having electrical weight-sensitive devices involving comparison with a reference value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
    • G01G19/34—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them with electrical control means
    • G01G19/346—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them with electrical control means involving comparison with a reference value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0235—Containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/042—Granular material

Definitions

  • the present invention relates to a powder supply device, and more particularly to a powder supply device that supplies powder to a container transported by a transport unit.
  • Patent Document 1 in a powder automatic weighing and filling device for filling a container transported by a transport conveyor after measuring the weight of a predetermined amount of powder, a detaching means for detaching the container from the conveyor and detaching the container are provided.
  • a cutting machine that cuts out powder into a container, a measuring instrument that weighs the own weight of the powder cut out in a container, and a measuring instrument that controls the amount of powder cutting out based on the measured value measured by the measuring instrument.
  • an automatic powder weighing and filling device characterized by having a control unit.
  • Patent Document 1 Since the invention of Patent Document 1 requires a place for cutting out the powder for each powder, the number of places for cutting out the powder increases as the types of powder to be cut out increase, which is necessary for the installation of the apparatus. Space will also be large.
  • the present invention includes a main body, a container having an open upper portion and storing powder inside, a driven state for transporting the container placed on the upper side, and a stopped state for stopping the container placed on the upper side.
  • the container is provided with a transport unit having a transport unit, and a plurality of stockers connected to the main body to store the powder inside and supply the powder to the outside, and the transport unit is placed on the upper side of the transport unit.
  • the stocker has a supply region which is a region for supplying the powder from the stocker, and the stocker includes a charging port and a supply port into which the powder can be charged inside the stocker, and is stored inside the stocker.
  • It has a supply unit for supplying the powder to the container from the supply port, and is arranged radially around the supply region so that the central axis of the supply unit faces the center of the supply region.
  • the powder can be supplied to the container transported to the supply region by the transport unit from the stocker radially arranged around the supply region, and the powder can be supplied to the container. Can be stored inside the container. Therefore, the powder can be supplied from the plurality of stockers in one place, and a supply place is not required for each powder to be supplied, so that the space required for installing the powder supply device is reduced. be able to.
  • the present invention preferably has a structure in which the stocker is detachably connected to the main body. According to this configuration, the stocker provided in the powder supply device and another stocker can be exchanged, and the powder supplied from the powder supply device can be replaced with another powder. The task of switching is simplified. Further, the maintainability of the powder supply device is improved.
  • the main body has a control unit, and the control unit controls the transportation of the container by the transportation unit and the supply of the powder by the supply unit. According to this configuration, the efficiency of transporting the container and supplying the powder is improved.
  • the transport unit has a measuring unit in the supply region, the container placed on the upper side of the transport unit is located on the upper side of the measuring unit, and the transport unit is in the stopped state. Occasionally, it is preferred that the weighing unit weighs the powder stored in the container.
  • the plurality of stockers supply the powder one by one in order, so that one measuring unit can measure a plurality of types of powder stored in the container. ..
  • Powder includes, in addition to powder, either granules or a mixture of powder and granules. Applications of powders such as foods, chemicals, construction / civil engineering, and semiconductors are not limited.
  • “Supplying powder from the supply port” means discharging the powder from the supply port to the outside of the stocker. For example, the discharged powder is dropped and stored in a container, and is supplied for the purpose of weighing the powder in the container with a measuring instrument.
  • a screw conveyor and a screw feeder are exemplified as the "supply unit”, but other powder supply units such as a vibration feeder and a belt conveyor can also be adopted as long as they have a powder transfer function.
  • the "conveyor unit” is not particularly limited, and existing ones can be adopted, and examples thereof include a roller conveyor and a belt conveyor.
  • the “measuring unit” is not particularly limited, and existing ones can be adopted, and examples thereof include an electronic balance.
  • Connection means connecting two things, including both fixed and connected ones and detachable ones.
  • the present invention it is possible to supply a plurality of types of powder at one place, and it is possible to reduce the space required for installing the powder supply device.
  • the powder supply device 1 (hereinafter referred to as the supply device 1) will be described with reference to FIGS. 1 to 3.
  • the supply device 1 stationary the main body 2, the container 3 having an open upper portion and storing the powder P inside, the driving state for transporting the container 3 placed on the upper side, and the container 3 placed on the upper side. It is configured to include a transport unit 4 having a stopped state, and a plurality of stockers 5 connected to the main body 2 to store powder P inside and supply the powder P to the outside.
  • the main body 2 includes a main body portion 21 and a gantry 22 that supports the main body portion 21, and has a structure in which the stocker 5 is detachably connected to the gantry portion 22.
  • the main body 21 has a control unit 211 and a notification unit 212, and the control unit 211 controls the transportation of the container 3 by the transportation unit 4 by connecting the transportation unit 4 to the main body 2.
  • the control unit 211 controls the transportation of the container 3 by the transportation unit 4 by connecting the transportation unit 4 to the main body 2.
  • the supply of the powder P by the supply unit 52 which will be described later, is controlled.
  • the notification unit 212 notifies that the state of the transport unit 4 is switched by the control, which is useful for preventing inconvenience caused by driving or stopping the transport unit 4. Is.
  • the notification unit 212 has a trouble such as a malfunction or a failure of the machine. , Notifies that the amount of powder P stored in the container 3 is abnormal. By this notification, it is possible to prevent the container 3 for storing the abnormal amount of powder P exceeding the predetermined weight from being transported to the downstream side of the supply region A, which will be described later.
  • the notification unit 212 of the present embodiment is a rotary lamp, and the control unit 211 controls the transport unit 4, lights up when the state of the transport unit 4 is switched, and stops after a predetermined time has elapsed.
  • the notification unit 212 any other unit can be adopted as long as it notifies that the state of the transport unit 4 is switched. For example, a light that visually notifies by light, a speaker that audibly notifies by sound, and the like are also adopted. Can be adopted.
  • the inside of the gantry 22 is hollow, and the mounting portion 221 on which the main body portion 21 is placed, the leg portion 222, the reinforcing member 223 connecting the leg portions 222 to each other, the position detecting portion 224, and the stocker 5 are placed on the main body 2. Includes a mating guide receiving portion 225, which serves as a guide portion 55 to be described later when inserted.
  • the gantry 22 is arranged so as to straddle the transport unit 4, and the container 3 placed on the upper side of the transport unit 4 can pass through the inside of the gantry 22 (see FIGS. 1 and 2). Therefore, the main body 2 is arranged so that the container 3 transported by the transport unit 4 passes below the mounting unit 221 and between the leg portions 222.
  • the position detection unit 224 is installed on the reinforcing member 223 and can detect whether the position of the container 3 placed on the transport unit 4 is within the supply area A described later.
  • the position detection unit 224 of the present embodiment is, for example, a photoelectric sensor having a light emitting diode, a light receiving diode, or the like, but is not particularly limited, and an existing position detection device can be adopted.
  • the transport unit 4 has a supply region A which is a region for supplying the powder P from the stocker 5 to the container 3 placed on the upper side of the transport unit 4.
  • the transport unit 4 is further arranged in the supply region A and has a measuring unit 41 for measuring the weight of the powder P in the container 3.
  • the transport unit 4 has a driven state and a stopped state.
  • the driven state the container 3 placed on the upper side of the transport unit 4 is transported in the transport direction X shown in FIGS. 2 and 3, respectively.
  • the stopped state the container 3 placed on the upper side of the transport unit 4 can be stopped.
  • the transport unit 4 of the present embodiment is a roller conveyor, but is not particularly limited, and existing transport equipment can be adopted, and examples thereof include a belt conveyor.
  • the measuring unit 41 measures the weight of the powder P stored in the container 3 when the container 3 placed on the upper side of the transport unit 4 is located on the upper side of the measuring unit 41 and the transport unit 4 is in the stopped state. do.
  • the measuring unit 41 of the present embodiment has a roller conveyor fixed on the upper side of a dust-proof load cell type electronic balance.
  • the roller conveyor of the measuring unit 41 is arranged independently of the roller conveyors on the upstream side and the downstream side thereof with respect to the transport direction X, and is placed on the upper side of the roller conveyors on the upstream side and the downstream side.
  • the weight of the object is not included in the weighing by the dustproof load cell electronic balance.
  • the dust-proof load cell type electronic balance can accurately weigh the powder P stored in the container 3 placed on the upper side of the measuring unit 41.
  • the height of the roller conveyor of the measuring unit 41 is the same as the height of the roller conveyors on the upstream side and the downstream side of the measuring unit 41, and the container 3 placed on the upper side of the transport unit 4 has the upper side of the measuring unit 41. It is possible to pass smoothly without getting stuck.
  • the supply device 1 can also control the supply flow rate of the powder P supplied from the stocker 5 by the main body 2 according to the weight of the powder P stored in the container 3 measured by the measuring unit 41. Therefore, it is possible to supply the powder P having a predetermined weight from the stocker 5 to the container 3 with high accuracy.
  • the measuring unit 41 is not particularly limited, and existing measuring equipment can be adopted, and a dustproof one is preferable from the viewpoint of being used for measuring the powder P.
  • the stocker 5 has a charging port 51 into which the powder P can be charged, and a supply unit 52 including a supply port 521 and supplying the powder P stored inside from the supply port 521 to the container 3. ..
  • the powder P stored in the stocker 5 is supplied from the supply port 521 via the supply unit 52.
  • the supply unit 52 of the present embodiment is a cylindrical screw feeder.
  • the stocker 5 further has a plurality of casters 53 including one having a rotation stopper at the bottom, an elastic member 54, and a guide portion 55 to be inserted into the main body 2. The stocker 5 can be moved in any direction by the caster 53.
  • a plurality (here, four) of the stockers 5 of the present embodiment are arranged radially around the supply region A in which the container 3 is set so that the powder P can be supplied, and the central axis Y of the supply unit 52 is arranged. It is a structure that is detachably connected to the main body 2 so as to face the center of the supply area A.
  • a mechanical insertion / extraction structure can be exemplified. The stocker 5 is pushed into the main body 2, the guide portion 55 is inserted into the main body 2, and the stocker 5 is attached to the main body 2. The stocker 5 is pulled out from the main body 2, the guide portion 55 is pulled away from the main body 2, and the stocker 5 is separated from the main body 2.
  • the elastic member 54 is a member that has elasticity and cushions an impact by elastic deformation, is located outside the guide portion 55, and is in contact with the main body 2 when the stocker 5 is attached to the main body 2. .. When the stocker 5 receives an unexpected impact from the outside, the elastic member 54 can absorb the impact and prevent the stocker 5 itself from coming into contact with the main body 2 and being damaged.
  • the stocker 5 is mounted on the main body 2 in a state where the vicinity of the tip of the supply unit 52 including the supply port 521 is inserted into the inside of the gantry 22, and the supply port 521 is above the supply area A and is in the supply area A. It is located above the container 3 placed on the container 3.
  • the powder P can be supplied to the container 3 located in the supply region A from the supply port 521.
  • the other portion of the supply unit 52 is located in the internal space of the stocker 5, and the powder P stored in the stocker 5 is supplied to the inside of the stocker 52 from the opening of the stocker 52.
  • the main body 2 and the stocker 5 can be easily attached and detached, and the attached stocker 5 and another stocker 5 can be easily replaced. That is, individual stockers 5 are mounted on the main body 2 so as to be interchangeable with each other.
  • the stocker 5 and another stocker 5 can be exchanged, it becomes easy to switch the type of the powder P to be supplied to the container 3. Since the stocker 5 can be detached from the main body 2, maintenance can be performed with the stocker 5 detached from the main body 2, and the maintainability of the powder supply device 1 is improved. For example, if the supply unit 52 fails, repair and replacement is easy.
  • the operation procedure of the supply device 1 will be explained.
  • the stocker 5 is attached to the main body 2.
  • the number of stockers 5 to be mounted on the main body 2 is arbitrary, and the number of stockers 5 to be mounted can be determined in consideration of the type, amount, and the like of the powder P to be supplied.
  • the timing for charging the powder P stored inside the stocker 5 into the stocker 5 may be any time before the powder P is supplied to the container 3, but from the viewpoint of operability, the powder P is charged into the stocker 5. Later, it is preferable to attach the stocker 5 to the main body 2.
  • the transport unit 4 is in the stopped state.
  • the control unit 211 of the main body 2 drives the transport unit 4 and transports the container 3 toward the measuring unit 41.
  • the notification unit 212 notifies that the state of the transport unit 4 is switched.
  • the notification by the notification unit 212 is stopped after a predetermined time has elapsed.
  • the control unit 211 controls the transportation of the container 3 by the transportation unit 4, and the transportation unit 4 is stopped.
  • the notification unit 212 notifies that the state of the transport unit 4 is switched, and stops after a predetermined time has elapsed.
  • the control unit 211 controls the supply of the powder P by the supply unit 52, and the supply of the powder P from the stocker 5 to the container 3 is started.
  • the container 3 is located above the measuring unit 41, and the measuring unit 41 measures the weight of the powder P stored in the container 3.
  • a weight sensor (not shown) of the control unit 211 is activated to control the supply of the powder P by the supply unit 52. The supply of powder P is stopped.
  • the notification unit 212 notifies that the amount of the powder P stored in the container 3 is abnormal, and the subsequent step, the transfer of the container 3 from the measuring unit 41 described later, is performed. The transport is not carried out because it is blocked. It is possible to prevent the container 3 in which the abnormal amount of powder P exceeding the predetermined weight is stored from being transported to the downstream side of the supply region A.
  • the supply of the powder P from the stocker 5 may be started and stopped by repeating an arbitrary number of times depending on the situation of the supply work.
  • each stocker 5 supplies the powder P one by one in order.
  • the weight of the powder P supplied by each stocker 5 can be weighed by the measuring unit 41, so that a predetermined amount of a plurality of types of powder P can be stored in each container 3 at one place. can.
  • the powder supply process ends, and the control unit 211 controls the transport of the container 3 by the transport unit 4. By doing so, the transport unit 4 is in the driven state, and the container 3 is transported from the measuring unit 41. At this time, the notification unit 212 notifies that the state of the transport unit 4 is switched, and stops after a predetermined time has elapsed.
  • the supply device 1 can repeatedly carry out the operations of transporting the above-mentioned container 3 to the measuring section 41, supplying the powder P from the stocker 5, and transporting the powder P from the measuring section 41 of the container 3. ,
  • the powder P can be continuously stored in a plurality of containers 3.
  • the stocker 5 is detached from the main body 2.
  • the control unit 211 controls the transfer of the container 3 by the transfer unit 4, so that the container 3 can be efficiently conveyed.
  • the measuring unit 41 weighs the powder P stored inside the container 3, and the control unit 211 controls the supply of the powder P by the supply unit 52, so that a plurality of types of powder P can be obtained for each container 3. It can be stored in a predetermined amount with high accuracy.
  • the present invention is not limited to the above-described embodiment, and modifications and the like can be added within a range that does not deviate from the technical idea of the present invention. It will be included in the technical scope.
  • the number of stockers 5 attached to the main body 2 is four in the above embodiment, but an appropriate number such as 1, 2, 3, 5, ... Can be adopted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
PCT/JP2021/040286 2020-11-03 2021-11-01 粉体供給装置 Ceased WO2022097610A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21889163.8A EP4242146B1 (en) 2020-11-03 2021-11-01 Powder supply apparatus
JP2022522572A JP7109847B1 (ja) 2020-11-03 2021-11-01 粉体供給装置
CN202180065407.0A CN116249662A (zh) 2020-11-03 2021-11-01 粉末供给装置
KR1020237009530A KR102863811B1 (ko) 2020-11-03 2021-11-01 분체 공급 장치
US18/192,209 US12466671B2 (en) 2020-11-03 2023-03-29 Powder supply device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020184018 2020-11-03
JP2020-184018 2020-11-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/192,209 Continuation US12466671B2 (en) 2020-11-03 2023-03-29 Powder supply device

Publications (1)

Publication Number Publication Date
WO2022097610A1 true WO2022097610A1 (ja) 2022-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/040286 Ceased WO2022097610A1 (ja) 2020-11-03 2021-11-01 粉体供給装置

Country Status (6)

Country Link
US (1) US12466671B2 (https=)
EP (1) EP4242146B1 (https=)
JP (1) JP7109847B1 (https=)
KR (1) KR102863811B1 (https=)
CN (1) CN116249662A (https=)
WO (1) WO2022097610A1 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1059447S1 (en) * 2022-02-25 2025-01-28 Tsukasa Co., Ltd. Powder particle weighing machine
USD1051190S1 (en) * 2022-02-25 2024-11-12 Tsukasa Co., Ltd. Powder particle feeder for weighing
JP1729852S (ja) * 2022-03-29 2022-11-15 粉粒体計量用供給機

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JPH06174537A (ja) * 1992-12-07 1994-06-24 Yokohama Rubber Co Ltd:The 粉粒体計量装置
JP2000136025A (ja) * 1998-10-30 2000-05-16 Daiwa Seiko Inc 粉粒体供給装置
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US12466671B2 (en) 2025-11-11
JPWO2022097610A1 (https=) 2022-05-12
KR102863811B1 (ko) 2025-09-23
EP4242146C0 (en) 2025-10-15
EP4242146B1 (en) 2025-10-15
EP4242146A1 (en) 2023-09-13
US20230234794A1 (en) 2023-07-27
EP4242146A4 (en) 2024-05-01
JP7109847B1 (ja) 2022-08-01
CN116249662A (zh) 2023-06-09

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