WO2009147756A1 - シート成形装置 - Google Patents
シート成形装置 Download PDFInfo
- Publication number
- WO2009147756A1 WO2009147756A1 PCT/JP2008/069964 JP2008069964W WO2009147756A1 WO 2009147756 A1 WO2009147756 A1 WO 2009147756A1 JP 2008069964 W JP2008069964 W JP 2008069964W WO 2009147756 A1 WO2009147756 A1 WO 2009147756A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressing
- rolling
- rolls
- unit
- forming apparatus
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
- B29C43/245—Adjusting calender parameters, e.g. bank quantity
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression 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
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/35—Extrusion nozzles or dies with rollers
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- 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
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3444—Feeding the material to the mould or the compression means using pressurising feeding means located in the mould, e.g. plungers or pistons
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5833—Measuring, controlling or regulating movement of moulds or mould parts, e.g. opening or closing, actuating
- B29C2043/5841—Measuring, controlling or regulating movement of moulds or mould parts, e.g. opening or closing, actuating for accommodating variation in mould spacing or cavity volume during 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5875—Measuring, controlling or regulating the material feed to the moulds or mould parts, e.g. controlling feed flow, velocity, weight, doses
-
- 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
- B29C2948/92019—Pressure
-
- 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
- B29C2948/92076—Position, e.g. linear or angular
-
- 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
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- 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
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/926—Flow or feed rate
-
- 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
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
- B29C48/525—Conical screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
Definitions
- the present invention relates to a sheet forming apparatus, and more particularly to a sheet forming apparatus for forming a plastically deformable material (hereinafter, may be simply referred to as a "material") such as rubber or resin material into a sheet.
- a plastically deformable material hereinafter, may be simply referred to as a "material"
- Patent Documents 1 and 2 Conventionally, a sheet obtained by extruding a material kneaded by a kneader from a twin-tapered screw type extruder as a feeding unit and rolling the extruded material into a sheet shape by rolling in a rolling unit provided with two rolls Molding apparatuses are known (see, for example, Patent Documents 1 and 2).
- This type of sheet forming apparatus includes a supply unit, a storage unit, and a rolling unit. The material is pushed out of the supply unit into the storage unit, temporarily stored in the storage unit, and then delivered to the rolling unit.
- the sheet having a planned thickness can be obtained (see, for example, Patent Document 3).
- the sheet forming apparatus described in Patent Document 1 temporarily supplies the material supplied from the supply unit between the supply unit including a twin-tapered screw type extruder and the rolling unit including two rolls.
- the material stored in the storage unit is sequentially sent to the rolling unit, rolled, and formed into a sheet.
- the storage part of this sheet forming apparatus is said to be an open bank type whose upper side is opened
- the amount of material received from the supply part supply part
- the amount of material delivered to the rolling part the amount of material delivered to the rolling part
- the deviation is absorbed by increasing or decreasing the bulk of the material.
- the pressure of the material on the rolling unit fluctuates with the fluctuation of the supply amount by the supply unit, and the amount of biting (rolling) of the material in the rolling unit tends to fluctuate. Therefore, there is a problem that the shape of the both ends of the formed sheet is disturbed or the thickness varies.
- the amount of the material stored in the storage unit is detected, and the material from the supply unit is detected according to the detected value.
- it has been proposed to control the receiving amount it is difficult to eliminate the fluctuation of the biting amount due to the fluctuation of the pressure of the material to the rolling portion only by controlling the amount of the material stored in the storage portion.
- the supply of the elastic material from the supply unit and the delivery amount of the elastic material to the rolling unit do not sufficiently exhibit the function of absorbing absorption when there occurs a difference. If the internal pressure of the storage section is rapidly increased due to the response performance of the control mechanism of the section, etc., a large load is applied to the components of the supply section and the rolling section, resulting in the problem of damage to the apparatus. Furthermore, in the case of the closed bank type sheet forming apparatus, the apparatus has to be disassembled in order to inspect and clean the storage section, which requires a problem of requiring a number of steps.
- the material to be fed into the feeding section is kneaded after being kneaded by a kneader in advance, but there is a kneading failure, and since the kneading temperature is not appropriate, the plasticization is not sufficient, As a result, a hard portion is formed, and the rolling portion may be overloaded or slipped and not bite, and the material may not be rolled in the rolling portion and clogged.
- the present invention can form a high-quality sheet with high dimensional accuracy without forming fluctuations in the amount of material delivered to the rolling section. Furthermore, it is an object of the present invention to provide a sheet forming apparatus capable of absorbing a rapid change in internal pressure of a storage section. Another object of the present invention is to provide a sheet forming apparatus capable of easily performing inspection and cleaning of a storage unit. Another object of the present invention is to provide a sheet forming apparatus which can solve problems more quickly.
- a supply unit for extruding a plastically deformable material a storage unit for temporarily storing a material extruded from the supply unit, and rolling a material stored in the storage unit
- a sheet forming apparatus including a rolling unit for forming the sheet into a sheet shape,
- a pressing mechanism is provided which presses the material stored in the storage section from above with a preset pressure, and the area of the pressing surface of the pressing member constituting the pressing mechanism is 30% of the area of the upper opening of the storage section. It is in being set to 95%.
- the material stored in the storage section by the pressing mechanism is provided by providing the pressing mechanism for pressing the material stored in the storage section from above with a preset pressure. Since the material can be stably delivered to the rolling section while applying pressure, fluctuation of the delivery amount of the material to the rolling section can be eliminated. As a result, it is possible to form a high-quality sheet that is well-shaped and has high dimensional accuracy. Then, by applying a constant pressure to the material stored in the storage unit by the pressing mechanism, for example, the pressing member ascends even when the material supply amount by the supply unit with respect to the material discharge amount by the rolling unit is excessively large. By increasing the volume of the reservoir, it is possible to suppress an excessive rise in the internal pressure of the reservoir.
- the pressing member ascends to the open end of the upper opening of the reservoir to make the upper portion of the reservoir substantially open in the open bank state, and the material is stored in the reservoir Can be discharged out of the This can prevent an accident such as breakage of the device in advance.
- the material can be stably delivered to the rolling portion, even in the case of a material with poor biting in the rolling portion, it can be bitten in the rolling portion without slipping.
- the storage section can have an open bank type separation absorption function with the upper part opened.
- the pressing mechanism includes a pressing member, an actuator for applying a preset pressure to the material stored in the storage section from the pressing surface of the pressing member, and the actuator And a link mechanism for transmitting a force to the pressing member.
- the pressing mechanism includes the pressing member, an actuator for applying a preset pressure to the material stored in the storage section from the pressing surface of the pressing member, and the force of the actuator
- the pressing mechanism can be easily disassembled at the position of the link mechanism or the pressing member. This makes it possible to easily check and clean the storage section.
- the pressing member ascends to the opening end of the upper opening of the storage unit, whereby the upper side of the storage unit Material can be drained out of the reservoir automatically in a substantially open, open bank condition. This can prevent an accident such as breakage of the device in advance.
- an operation control means for controlling the supply amount of the material by the supply unit and / or the discharge amount of the material by the rolling unit according to the position of the pressing surface of the pressing member. It is.
- the storage is performed by providing the operation control means for controlling the supply amount of the material by the supply unit and / or the discharge amount of the material by the rolling unit according to the position of the pressing surface of the pressing member.
- the operation control means sets the material supply amount by the supply unit to a high supply amount larger than the rated supply amount before driving the rolling unit, and the pressing surface of the pressing member When the position of ⁇ increases, driving of the rolling unit is started, and the material supply amount of the supply unit is set to the rated supply amount.
- the operation control means sets the material supply amount by the supply unit to a high supply amount larger than the rated supply amount before driving the rolling unit, and the position of the pressing surface of the pressing member rises.
- driving of the rolling section can be started, and the material supply amount of the supply unit can be set to the rated supply amount.
- the material supply amount by the supply unit is set to a high supply amount in a state where the driving of the rolling unit is stopped. Can be filled.
- the pressure of the pressing mechanism is maintained at a low pressure at which the rising responsiveness of the pressing member increases before the rolling unit is driven, and a constant pressure is preset after the rolling unit is driven.
- the pressure of the pressing mechanism is maintained at a low pressure at which the rising responsiveness of the pressing member is increased before the drive of the rolling unit, and the pressure is maintained at a constant pressure set in advance after the driving of the rolling unit.
- a sixth characterizing feature of the present invention resides in that the side wall of the storage portion is provided so as to be movable in the direction of contact and separation, and the pressing member is configured to be extensible and contractible in the width direction.
- the sheet forming apparatus of the present invention it is possible to push out sheets of various width dimensions by providing the side wall of the storage portion so as to be movable in the contact and separation direction and configuring the pressing member to be extensible in the width direction. It becomes.
- a seventh characterizing feature of the present invention is that the material pressed by the pressing member is supported by the lower one of the two rolls constituting the rolling section.
- the material of the storage section can be pressed against the lower roll by the pressing member, and the biting property of the material into the rolling section While preventing material from remaining in the reservoir at the end of the batch process.
- an eighth characterizing feature of the present invention wherein the rolling section is provided with a pair of upper and lower rolls for forming the material into a sheet and a rotational drive mechanism for driving and rotating at least one of the rolls , An operating mechanism for attaching the pair of rolls so as to be movable close to and away from each other, and for moving the pair of rolls apart.
- Clog detection means for detecting clogs of material in the rolling section; Based on the clogging detection by the clogging detection means, the control command is issued to operate the operation mechanism so as to make the gap between the pair of rolls wider than the planned thickness of the sheet, and the rotation drive mechanism is driven to rotate forward.
- an emergency control means for issuing a control command to make the pressing force of the pressing mechanism higher than the set pressure.
- the sheet forming apparatus of the present invention by making the gap between the pair of rolls larger than the planned thickness of the sheet, the passage of the substance causing the clogging can be easily accepted.
- the material remaining in the storage section is pushed between the pair of rolls while drivingly rotating at least one of the pair of rolls in the normal rotation direction, so that the material remaining in the storage section can be swiftly changed before its viscosity changes. It can be taken out from between a pair of rolls, and in a short time, it is possible to solve the trouble without taking time and effort.
- the material supplied to the storage section is elastic, pressure distribution may occur in the storage section.
- a deviation absorbing function works to absorb the deviation between the amount of material received from the supply part and the amount of material sent to the rolling part to prevent a rapid change in the internal pressure of the storage part, making sheet forming control relatively easy. It will be.
- the pressing mechanism exerts the separation absorbing function to relieve the load applied to the rolls and prevent the rolling section from being broken.
- the pressure of the pressing mechanism is made higher than the set pressure, whereby the material stored in the storage section is pushed between the pair of rolls, while protecting the device.
- the solution of the trouble will be done promptly.
- the solution of such trouble can be automatically performed based on the control command from the emergency control means, it can be quickly performed in a short time with little effort.
- the rolling section is constituted by providing a pair of upper and lower rolls for forming the material into a sheet and a rotational drive mechanism for driving and rotating at least one of the rolls.
- An operating mechanism for attaching the pair of rolls so as to be movable close to and away from each other, and for moving the pair of rolls apart.
- Clog detection means for detecting clogs of material in the rolling section; Based on the clogging detection by the clogging detection means, the control command is issued to operate the operation mechanism so as to make the gap between the pair of rolls wider than the planned thickness of the sheet, and the rotation drive mechanism is driven to rotate forward.
- emergency control means for issuing a control command for moving the pressing mechanism up and down.
- the sheet forming apparatus of the present invention by making the gap between the pair of rolls larger than the planned thickness of the sheet, the passage of the substance causing the clogging can be easily accepted.
- the material remaining in the storage section is pushed between the pair of rolls while drivingly rotating at least one of the pair of rolls in the normal rotation direction, so that the material remaining in the storage section can be swiftly changed before its viscosity changes. It can be taken out from between a pair of rolls, and in a short time, it is possible to solve the trouble without taking time and effort.
- the material supplied to the storage section is elastic, pressure distribution may occur in the storage section.
- a deviation absorbing function works to absorb the deviation between the amount of material received from the supply part and the amount of material sent to the rolling part to prevent a rapid change in the internal pressure of the storage part, making sheet forming control relatively easy. It will be.
- the gap between the pair of rolls is wider than the planned thickness of the sheet. Later, by moving the pressing mechanism up and down, the material that overflows outward can also be pushed back and effectively pushed between the pair of rolls, and while the device is protected, the solution of the problem is also quick. To be done.
- the solution of such trouble can be automatically performed based on the control command from the emergency control means, it can be quickly performed in a short time with little effort.
- the pressing force of the pressing mechanism may be set to a pressure higher than the normal setting pressure, or the pressing mechanism may be repeated even when the supply operation of the material by the supply unit is stopped. By moving up and down, only the material in the storage section can be taken out more efficiently, and the amount of defective products can be reduced.
- FIG. 1 shows a form (a first embodiment) in which the mechanism section of this pressing mechanism 4 is provided on the roll support side.
- FIG. 2 to 6 show the second embodiment in which the mechanism portion of the pressing mechanism 4 is provided on the support side of the extruder 11 of, for example, a biaxial taper screw type provided at the lower part of the supply portion 1 is there.
- this invention is not limited to the extruder of this form.
- FIG. 1 shows a first embodiment of the sheet forming apparatus of the present invention.
- the sheet forming apparatus includes a supply unit 1 for supplying (pushing out) a plastically deformable material W, and a storage unit 3 for temporarily storing the material W supplied (pushed out) from the supply unit 1;
- a rolling unit 2 for rolling the material W stored in the storage unit 3 is provided.
- the extruder 11 is disposed in the supply unit 1, and the two rolls 21a and 21b are disposed in the rolling unit 2. I have to.
- one of the two rolls 21a and 21b is driven and rotated by a rotational drive mechanism M such as a motor, and the other is interlocked and rotationally driven from one roll via a gear.
- a rotational drive mechanism M such as a motor
- each of the rolls 21a and 21b may be configured to be individually driven and rotated by a drive mechanism (not shown) such as an individual motor.
- the upper roll 21a is attached to the rolling unit main body 50 so as to move up and down so as to be close to and separated from the lower roll 21b, and is provided with an operation mechanism 51 operated to move up and down by a fluid pressure cylinder. .
- the rolling unit 2 provided with the pair of rolls 21a and 21b is supplied at the time of maintenance or trouble or the like because the rolling unit main body 50 is supported on the rail 52 via the support wheel 53. It is mounted for perspective movement so as to be separated from the part 1.
- the rolling unit 2 formed between the two rolls 21 a and 21 b in the rolling unit 2 is positioned on the plane P including the rotation shaft of the extruder 11 of the feeding unit 1.
- the angle ⁇ formed between the plane P and the horizontal plane is set to 5 to 30 ° (15 ° in the present embodiment so as to descend toward the rolling portion 2 side).
- the storage unit 3 provided between the supply unit 1 and the rolling unit 2 described above is provided with a pressing mechanism 4. That is, the sheet forming apparatus is provided with a pressing mechanism 4 for pressing the material W stored in the storage section 3 from above with a predetermined pressure (setting pressure) set in advance. If it is necessary to prevent the area of the pressing surface 41a of the pressing member 41 constituting the pressing mechanism 4 from 30 to 95% of the area of the upper opening 31 of the storage section 3, in particular, the protrusion of the material W, It is set to 85 to 95%.
- the area of the upper opening 31 is parallel to the plane P including the rotation axis of the extruder 11 of the feeding unit 1 and is the upper one of the two rolls 21 a and 21 b of the rolling unit 2.
- the opening area in the plane including the rotation axis of (shown by a two-dot chain line in FIG. 1).
- the dimension of the pressing surface 41 a of the pressing member 41 with respect to the dimension of the upper opening 31 is about 70% of the feeding direction of the material W, and the direction perpendicular to the feeding direction of the material W
- the area of the pressing surface 41a of the pressing member 41 is set to about 56% of the area of the upper opening 31 of the storage section 3 by setting the width direction to about 80%.
- a pressure distribution may occur in the reservoir 3, and the reservoir 3 and the rolling unit 2 may be generated due to the fluctuation of the material supply amount of the supply unit 1.
- the pressing mechanism 4 is provided by thus providing the pressing mechanism 4 for pressing the material W stored in the storage section 3 from above with a constant pressure set in advance.
- the material W can be stably delivered to the rolling unit 2 while applying a constant pressure to the material W stored in the storage unit 3. Therefore, the fluctuation
- the material W can be stably sent out to the rolling unit 2, and therefore, elasticity with poor biting in the rolling unit 2 Even in the case of the material W, the rolling unit 2 can be engaged without slipping.
- the pressing member 41 is elevated and the volume of the storage unit 3 is increased. It is possible to suppress the rise.
- the pressing member 41 ascends to the opening end of the upper opening 31 of the storage section 3 to make the upper part of the storage section 3 substantially open. The material W can be discharged out of the reservoir 3.
- the ratio of the area of the pressing surface 41a of the pressing member 41 to the area of the upper opening 31 of the storage portion 3 is that the storage portion 3 has a function as an open bank type separation and absorption function opened upward. From the above, according to the characteristics of the material W, etc., it can be set arbitrarily in the range of 30 to 95%. Then, for example, when the elasticity of the material W is extremely large, it is possible to use the pressing member 41 provided with the pressing surface 41a which is smaller than the area of the upper opening 31 in the range of about 30 to 80%.
- the area is larger than the area of the upper opening 31 in the range of about 70 to 95%, particularly about 85 to 95% in the case of preventing the material W from protruding. It is preferable to use the pressing member 41 provided with the pressing surface 41a.
- the pressing mechanism 4 is not particularly limited to a predetermined pressure (not particularly limited, for example, the pressing member 41 and the material W stored in the storage section 3 from the pressing surface 41 a of the pressing member 41).
- an actuator 42 comprising a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, a spring member, etc. for applying a pressure in the range of 0.2 to 5 MPa as desired), and a member for pressing the force of the actuator 42.
- Link mechanism 43 for transmitting to 41 (though not particularly limited, but as shown in FIG. 1, it is composed of a seesaw-like lever member in which the swinging shaft 43a is positioned outside the storage portion 3) It is like that.
- the actuator 42 and the link mechanism 43 of the pressing mechanism 4 are preferably disposed laterally away from the center of the storage section 3 as in the second embodiment described later. Thereby, the space above the upper opening 31 of the storage section 3 is effectively utilized, and inspection or cleaning of the storage section 3 is performed without disassembling the pressing member 41 or moving the rolls 21a and 21b. Can be made possible.
- the link mechanism 43 is configured of a seesaw-like lever member in which the swing shaft 43a is positioned outside the storage portion 3 as shown in FIG. Is configured to be transmitted to the pressing member 41, and the pressing mechanism 4 is easily disassembled at a position between the actuator 42 and the link mechanism 43 (between the link mechanism 43 and the pressing member 41).
- the upper opening 31 of the reservoir 3 can be largely opened.
- the link mechanism 43 is constituted by a seesaw-like lever member in which the swinging shaft 43 a is positioned outside the storage portion 3, so that the supply with respect to the material discharge amount by the rolling portion 2 is supplied.
- the pressing member 41 ascends to the opening end of the upper opening portion 31 of the storage portion 3 so that the upper side of the storage portion 3 is substantially open.
- the material W can be discharged to the outside of the reservoir 3 automatically. This can prevent an accident such as breakage of the device in advance.
- the pressing mechanism 4 presses the material W stored in the storage section 3 from above with a constant pressure set in advance, according to the amount of the material W stored in the storage section 3
- the position of the pressing surface 41 a of the pressing member 41 is changed in a predetermined range. Therefore, in a normal continuous operation state, operation control means for controlling the supply amount of the material W by the supply unit 1 and / or the discharge amount of the material W by the rolling unit 2 according to the position of the pressing surface 41a of the pressing member 41 c1 is provided, and the operation control means c1 controls the supply amount of the material W by the supply unit 1 and / or the discharge amount of the material W by the rolling unit 2.
- the amount of supply of the material W by the supply unit 1 is reduced or the amount of discharge of the material W by the rolling unit 2 is increased.
- the amount of material W supplied by the supply unit 1 may be increased, or the amount of material W dispensed by the rolling unit 2 may be reduced.
- the quantity of the material W stored in the storage part 3 is maintained to a predetermined quantity, and, thereby, it is possible to form a high-quality sheet having a high dimensional accuracy and a well-shaped shape.
- Second Embodiment 2 to 6 show a second embodiment of the sheet forming apparatus of the present invention.
- the sheet forming apparatus includes a supply unit 1 for supplying a rubber-like plastically deformable material W, and a storage unit for temporarily storing the material W supplied from the supply unit 1. It comprises a section 3 and a rolling section 2 for rolling the material W stored in the storage section 3. And also in this sheet forming apparatus, the pressing mechanism 4 for pressing the material W stored in the storage section 3 from above with a predetermined pressure set in advance is provided, and the pressing member 41 constituting the pressing mechanism 4
- the area of the pressing surface 41a is set to 30 to 95% of the area of the upper opening 31 of the storage section 3, in particular, to 85 to 95% when it is necessary to prevent the material W from protruding.
- the same members as those of the first embodiment are indicated by the same reference numerals, and the description thereof is omitted.
- the pressing mechanism 4 includes an actuator 42 including a pressing member 41 and a hydraulic cylinder for applying a predetermined pressure set in advance to the material W stored in the storage unit 3 from the pressing surface 41 a of the pressing member 41. And a link mechanism 43 for transmitting the force of the pressure to the pressing member 41.
- the actuator 42 is disposed on the lower side of the sheet forming apparatus. As a result, the pressing member 41 can be completely opened from the storage portion 3, and the space above the upper opening 31 is effectively used to prevent the pressing member 41 from being disassembled or the rolls 21 a and 21 b. Even if it does not move, inspection and cleaning of storage part 3 are enabled.
- the actuator 42 by disposing the actuator 42 on the lower side of the sheet forming apparatus, it is possible to increase the arm ratio of the link mechanism 43, and to reduce the generated thrust of the actuator 42. Furthermore, by completely releasing the pressing member 41, it is possible to absorb the rapid fluctuation of the internal pressure of the storage section 3. Thereby, for example, even when the material supply amount by the supply unit 1 with respect to the material discharge amount by the rolling unit 2 is excessively large, the pressure member 41 is raised and the volume of the storage unit 3 is increased. Can be suppressed. When the amount of material supplied to the storage section 3 further increases, the pressing member 41 ascends to the opening end of the upper opening 31 of the storage section 3 to make the upper part of the storage section 3 substantially open. The material W can be discharged out of the reservoir 3. This makes it possible to more reliably prevent an accident such as damage to the device.
- the sheet forming apparatus includes an operation control unit c1 that controls the supply amount of the material W by the supply unit 1 and / or the discharge amount of the material W by the rolling unit 2 according to the position of the pressing surface 41a of the pressing member 41;
- the pressure control unit c2 holds the pressure of the actuator 42 of the mechanism 4 at a low pressure at which the rising responsiveness of the pressing member 41 increases before driving the rolling unit 2, and at a predetermined pressure after driving the rolling unit 2. Is equipped.
- the operation control means c1 is the same as that of the first embodiment, and in a normal continuous operation state, the supply amount of the material W by the supply unit 1 and / or according to the pressing member 41 moved up and down by the amount of the material W The discharge amount of the material W by the rolling unit 2 is controlled.
- the pressure control means c2 ensures the rise of the pressing member 41 by the material W supplied at the initial stage of operation, thereby ensuring the control of the supply amount of the material W by the operation control means c1. It is comprised so that breakage of rolls 21a, 21b of the rolling part 2 etc. by supply may be prevented.
- the storage unit 3 is filled with the material W in a state in which the rolls 21 a and 21 b are stopped.
- the internal pressure is applied, and after that, when the material W is accumulated in the storage part 3 and the pressing member 41 rises, the position of the pressing surface 41a of the pressing member 41 is detected by the angle change of the pressing member 41.
- a change in angle for example, but not limited to, 10 ° in the present embodiment
- it is detected by a proximity switch, an encoder or the like.
- the detection signal the operation of the rolls 21a and 21b is started so that the sheet shape can be pushed out from the beginning. That is, this can improve the yield rate.
- the angle change of the pressing member 41 is detected by the proximity switch or the encoder, and the operation control means c1 is operated by this detection signal to control the number of rotations of the screws 11a and 11b.
- the screw rotation speed of the supply unit 1 is set to a high speed (about 2 to 5 times the main speed in steady operation, but not particularly limited) at the initial stage of operation. In the state, the number of rotations of the screws 11a and 11b is switched to the main speed (low speed) so that the rated supply amount is obtained.
- the operation control means c 1 sets the material supply amount by the supply unit 1 to a high supply amount larger than the rated supply amount, and the position of the pressing surface 41 a of the pressing member 41 rises.
- driving of the rolling unit 2 is started, and the material supply amount of the supply unit 1 is set to the rated supply amount.
- the material supply amount by the supply unit 1 is set to a high supply amount in a state where the driving of the rolling unit 2 is stopped.
- the material W can be filled quickly.
- the fact that the material W is completely filled in the storage portion 3 can be detected by the increase in the position of the pressing surface 41 a of the pressing member 41, and the driving of the rolling portion 2 is triggered by that as a start. Can push out high quality sheets from
- the side wall 33 of the storage portion 3 is provided so as to be movable in the contact and separation direction, and the pressing member 41 is configured to be extensible and contractible in the width direction.
- the storage section 3 is a closed type (closed bank type)
- the setting of the sheet width is fixed because of the sealing property.
- the area of the pressing surface 41a of the pressing member 41 is a part (30 to 95%) of the area of the upper opening of the storage section 3, and complete sealing performance is not required.
- the material pressing and extending member 41b can be attached to the pressing member 41 so as to be movable in the width direction.
- each of the dimension in the feeding direction of the material W of the pressing surface 41 a of the pressing member 41 and the dimension in the direction perpendicular to the sheet (corresponding to the width direction of the sheet)
- it can be set to 80 to 98%.
- the support 32 provided at the bottom of the storage section 3 of the above embodiment is omitted, and the lower part of the two rolls 21 a and 21 b constituting the rolling section 2.
- the roll 21b is positioned below the pressing member 41 by making the roll 21b adjacent to the supply unit 1 (the rotation axes of the two rolls 21a and 21b include the rotation axes of the screws 11a and 11b of the supply unit 1).
- the angle ⁇ 2 (with respect to the orthogonal plane) (not particularly limited, but in this modified embodiment, 25 °) is inclined in the inclined plane.
- the material W pressed by the pressing member 41 can be supported by the lower roll 21 b of the two rolls 21 a and 21 b constituting the rolling unit 2.
- the material W of the storage section 3 can be pressed against the lower roll 21b by the pressing member 41, and the biting property of the material W into the rolling section 2 is improved, and the material in the storage section 3 at the end of batch processing W can be prevented from remaining.
- the separation distance between the two rolls 21a and 21b provided in the rolling unit 2 is made movable, and the separation distance is operated to a desired distance by the operation mechanism 51. It can be set.
- Clogging Detection Means The sheet forming apparatus according to the present invention is provided with a clogging detection means c3. The clogging detection means c3 is configured to detect a clogging of the material W in the rolling unit 2.
- the clogging detection means c3 detects an increase over the set height of the pressing member 41 due to the material supply excess of the supply unit 1, or overflows over the setting of the material from the upper opening 31. By detecting the amount, it is configured to be able to detect clogging.
- Emergency control means This emergency control means c4 controls the operation mechanism 51, the rotation drive mechanism M, and the extruder of the supply unit 1 when the clogging detection means c3 detects a clogging based on the detection result of the above-mentioned clogging detection means c3. It is comprised so that a predetermined
- the emergency control means c4 a method for solving the problem by the sheet forming apparatus in the present application will be described based on FIGS. 7 to 11.
- the operation control means c1, the pressure control means c2, the clogging detection means c3 and the emergency control means c4 described above are constituted by a computer C such as a microcomputer in a state where software for performing a predetermined function is stored. Further, based on the predetermined control command issued by the emergency control means c4, the following trouble solving method is executed by each means of the sheet forming apparatus and the like.
- the pair of rolls 21a and 21b are moved to the frame of the rolling unit 2 (rolling unit main body 50) in such a way as to be movable close to and away from each other in advance. Attach it. Then, based on the clogging detection of the material W in the rolling unit 2 by the clogging detection means c3, the operation mechanism 51 causes the gap between the pair of rolls 21a and 21b to be wider than the thickness scheduled for forming the sheet, and causes the rotation drive mechanism M to work. While drivingly rotating at least one of the pair of rolls 21a and 21b in the forward rotation direction, the material W stored in the storage unit 3 is pushed between the pair of rolls 21a and 21b by the material pushing operation by the supply unit 1. At this time, the pressing force by the pressing mechanism 4 may be a set pressure at a normal time or a free state in which no pressure is applied.
- the gap between the pair of rolls 21a and 21b As a result, by making the gap between the pair of rolls 21a and 21b wider than the planned thickness of the sheet, it becomes easy to allow the passage of the substance causing the clogging. Furthermore, the material W stored in the storage section 3 is pushed between the pair of rolls 21a and 21b while drivingly rotating at least one of the pair of rolls 21a and 21b in the forward rotation direction, the material remaining in the storage section 3 is Before the viscosity changes, it is possible to take out quickly from between the pair of rolls 21a and 21b, and in a short time, it becomes possible to solve the trouble without taking time and effort. In addition, since the trouble can be resolved without stopping the entire apparatus only by widening the distance between the pair of rolls 21a and 21b, it is possible to process more quickly and return to normal operation in a short time. Become.
- the gap between the pair of rolls 21a and 21b is greater than the expected thickness of the sheet by the operating mechanism 51.
- the pressing force of the pressing mechanism 4 is to be a pressure higher than the normal set pressure.
- the arrow illustrated at the tip of the pressing mechanism 4 indicates that the pressing force is higher than the normal setting pressure.
- the pressure of the pressing mechanism 4 is set higher than the set pressure, so that the material W stored in the storage section 3 is between the pair of rolls 21a and 21b.
- the solution of the trouble is also promptly performed.
- the supply of material can be stopped and only the material in the reservoir 3 can be taken out, and the amount of defective products can be reduced.
- the gap between the pair of rolls 21a and 21b is controlled by the operating mechanism 51 more than the thickness of the sheet to be formed.
- the pressing mechanism 4 is repeatedly moved up and down.
- the arc-shaped double-headed arrow shown in the upper side of the pressing mechanism 4 shows a state of being repeatedly moved up and down.
- the maximum pressure of the pressing mechanism 4 to be repeatedly moved up and down may be a set pressure at a normal time or may be a pressure higher than that.
- the sheet between the pair of rolls 21a and 21b is formed into a sheet.
- the material is effectively pushed between the pair of rolls 21a and 21b by repeatedly moving the pressing mechanism 4 up and down after it is expanded beyond the predetermined thickness. The repetition of this vertical movement may be at least once or more.
- the supply operation of the supply unit 1 is stopped, and the gap between the pair of rolls 21a and 21b is controlled by the operation mechanism 51 to form a sheet with a predetermined thickness.
- the pressing mechanism 4 is repeatedly moved up and down.
- the arc-shaped double-headed arrow illustrated on the upper side of the pressing mechanism 4 indicates a state in which the arrows are repeatedly moved up and down.
- the maximum pressure of the pressing mechanism 4 to be repeatedly moved up and down may be a set pressure at a normal time or may be a pressure higher than that. Moreover, the repetition of this up-and-down movement should just be at least once or more.
- the supply of material can be stopped and only the material in the reservoir 3 can be taken out more efficiently, and the amount of defective products can be reduced.
- the first to fifth methods described above may be executed after stopping the entire device once when a material clogging in the rolling unit 2 is detected, the method may be continued without stopping the entire device. You may implement the method for the trouble solution.
- the material to be supplied to the sheet forming apparatus of the present invention has an inorganic clay-like plasticity without elasticity other than elastic materials such as unvulcanized rubber, synthetic resin materials and materials containing them. They may be materials, and they are collectively referred to as plastically deformable materials.
- the sheet forming apparatus can form a high-quality sheet with high dimensional accuracy without forming fluctuations in the amount of plastically deformable material delivered to the rolling section, and can further store the storage section. Because it can absorb the rapid fluctuation of internal pressure, it can be used suitably for the application of the sheet forming device which forms elastic rubber or plastic into a sheet, and the trouble due to the material clogging can be solved easily. .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
この種のシート成形装置は、供給部、貯留部及び圧延部を備えて構成され、供給部から材料を貯留部に押し出し、当該貯留部に一時的に貯留した後、圧延部に受け渡すことで、成形予定厚のシートを得ることができる(例えば、特許文献3参照)。
このうち、特許文献1に記載のシート成形装置は、2軸テーパースクリュー式の押出機からなる供給部と、2本のロールからなる圧延部との間に、供給部から供給された材料を一時的に貯留する貯留部を備え、この貯留部に貯留されている材料が順次前記圧延部に送られて、圧延され、シート状に成形されるようにしていた。
この問題点を解消するために、特許文献2に記載されたシート成形装置のように、貯留部内に貯留されている材料の量を検出し、その検出値に応じて、供給部からの材料の受入量を制御することが提案されているが、貯留部内に貯留されている材料の量を制御するだけでは、圧延部に対する材料の圧力の変動による噛み込み量の変動をなくすことは困難であった。
また、クローズドバンク型のシート成形装置の場合、供給部からの弾性材料の受入量と圧延部への弾性材料の送出量とに乖離が生じた場合の乖離吸収機能を十分に発揮しないため、供給部の制御機構の応答性能の関係等で、貯留部の内圧が急激に高まると、供給部や圧延部の構成部材に大きな負荷がかかり、装置の損傷につながるという問題があった。
さらに、クローズドバンク型のシート成形装置の場合、貯留部の点検、清掃を行うために装置を分解しなければならず、手数を要するという問題があった。
さらに、シート成形装置に後続する装置がトラブルを起こして、一時的に、シート成形装置がストップせざるを得なくなり、そのために貯留部で貯留する材料が硬くなり、その結果、再稼動時に圧延部で詰まってしまうことがある。
そのようなトラブルが発生した時には、従来は、装置全体の稼動を停止させて、貯留部から詰まった材料を取り出す必要があった。
すなわち、これら従来の解消法では、手間が多くかかりすぎるばかりか、装置全体を停止している間にも材料の粘性が高くなる方向に変化して益々取り出しにくくなり、トラブルの解消に不利になるという問題があった。
また、本発明は、貯留部の点検、清掃を容易に行うことができるシート成形装置を提供することを目的とする。
さらに、本発明は、より迅速にトラブルを解消できるようにするシート成形装置を提供することを目的とする。
前記貯留部に貯留されている材料を上方から予め設定した圧力で押圧する押圧機構を設け、当該押圧機構を構成する押圧部材の押圧面の面積を、前記貯留部の上部開口部の面積の30~95%に設定したことにある。
そして、押圧機構によって貯留部に貯留されている材料に一定の圧力をかけることにより、例えば、圧延部による材料払出量に対する供給部による材料供給量が過剰に大きい場合でも、押圧部材が上昇して貯留部の容積が増加することによって、貯留部の内圧の過剰な上昇を抑制することができる。貯留部への材料供給量が一層増加すると、押圧部材が貯留部の上部開口部の開口端まで上昇することによって、貯留部の上方が実質的に開放されたオープンバンク状態にして材料を貯留部の外に排出させることができる。これにより、装置の破損等の事故を未然に防止することができる。
また、材料を圧延部へ安定して送り出すことができるため、圧延部における噛み込みが悪い材料の場合でも、スリップすることなく、圧延部に噛み込ませることができる。
さらに、押圧機構を構成する押圧部材の押圧面の面積を貯留部の上部開口部の面積の30~95%に設定することにより、貯留部に上方が開放されたオープンバンク型の乖離吸収機能を十分に発揮させることができ、供給部からの材料の受入量と圧延部への材料の送出量との乖離を吸収して貯留部の内圧の急激な変動を防止することができる。これによって、供給部や圧延部の構成部材に大きな負荷がかかって装置が損傷することを未然に防止することができる。
また、リンク機構によって、圧延部による材料払出量に対する供給部による材料供給量が過剰に大きくなった場合、押圧部材が貯留部の上部開口部の開口端まで上昇することによって、貯留部の上方が実質的に開放されたオープンバンク状態に自動的にして材料を貯留部の外に排出させることができる。これにより、装置の破損等の事故を未然に防止することができる。
前記一対のロールを互いに近接離間移動自在に取り付けると共に、前記一対のロールを離間移動操作する操作機構と、
前記圧延部での材料の詰まりを検出する詰まり検出手段と、
その詰まり検出手段による詰まり検出に基づいて、前記一対のロール間の隙間をシートの成形予定厚よりも広げるように前記操作機構に操作させる制御指令を出し、且つ、前記回転駆動機構に正回転駆動をさせる制御指令を出すと共に、前記押圧機構の押圧力を前記設定圧より高い圧力にする制御指令を出す緊急制御手段とを備えたことにある。
また、特に貯留部に供給される材料に弾性がある場合は、貯留部内で圧力分布ができることがあるが、予め設定した圧力(設定圧)で材料を押圧する押圧機構を設けておくことにより、供給部からの材料の受入量と圧延部への材料の送出量との乖離を吸収して貯留部の内圧の急激な変動を防止する乖離吸収機能が働き、シート成形制御が比較的容易にできるようになる。また、その上、ロール間の詰まりが原因で貯留部の圧力が異常に高圧に成ろうとしても、押圧機構が乖離吸収機能を発揮してロールにかかる負荷を和らげ、圧延部の破壊を防止できると共に、一対のロール間の隙間を広げた後に、押圧機構の圧力を設定圧よりも高くすることにより、貯留部に貯留された材料は、一対のロール間に押し込められ、装置の保護をしながらもトラブルの解消も迅速に行われる。なお、このようなトラブルの解消は、緊急制御手段からの制御指令に基づいて自動的に行うことができるので、より短時間で、手間を掛けずに迅速に行うことができる。
前記一対のロールを互いに近接離間移動自在に取り付けると共に、前記一対のロールを離間移動操作する操作機構と、
前記圧延部での材料の詰まりを検出する詰まり検出手段と、
その詰まり検出手段による詰まり検出に基づいて、前記一対のロール間の隙間をシートの成形予定厚よりも広げるように前記操作機構に操作させる制御指令を出し、且つ、前記回転駆動機構に正回転駆動をさせる制御指令を出すと共に、前記押圧機構を上下動させる制御指令を出す緊急制御手段とを備えたことにある。
また、特に貯留部に供給される材料に弾性がある場合は、貯留部内で圧力分布ができることがあるが、予め設定した圧力(設定圧)で材料を押圧する押圧機構を設けておくことにより、供給部からの材料の受入量と圧延部への材料の送出量との乖離を吸収して貯留部の内圧の急激な変動を防止する乖離吸収機能が働き、シート成形制御が比較的容易にできるようになる。また、材料に弾性があって、しかも、貯留部の上部から押圧機構を押しのけて外方に溢れようとする材料があっても、一対のロール間の隙間をシートの成形予定厚よりも広げた後に、前記押圧機構を上下動させることにより、外方に溢れようとする材料をも押し戻して効果的に一対のロール間に押し込むことができ、装置の保護をしながらもトラブルの解消も迅速に行われる。なお、このようなトラブルの解消は、緊急制御手段からの制御指令に基づいて自動的に行うことができるので、より短時間で、手間を掛けずに迅速に行うことができる。
また、一対のロール間の隙間を広げた後に、供給部による材料の供給作動を停止させた状態でも、押圧機構の押圧力を通常時の設定圧より高い圧力に設定したり、押圧機構を繰り返し上下動させることにより、貯留部内の材料だけを、より効率よく取り出すことができ、不良品の量を少なくできる。
説明に際しては、先ず、本願に係るシート成形装置の構成を説明し、その後に、このシート成形装置で実施される本願に係るシート成形装置のトラブル解消方法及びこのトラブル解消用に設けられている構成に関して説明する。本願では、貯留部3に設けられる押圧機構4として独特の構成を採用しているが、図1は、この押圧機構4の機構部をロール支持側に設けた形態(第1実施形態)を示しており、図2~図6は、押圧機構4の機構部を、供給部1の下部に設けられる例えば2軸テーパースクリュー式の押出機11の支持側に設けた形態(第2実施形態)である。尚、本願において押出機11としては2軸テーパースクリュー式のものを採用した例を説明するが、本発明はこの形態の押出機に限定されるものではない。
〔第1実施形態〕
図1に、本発明のシート成形装置の第1実施形態を示す。
このシート成形装置は、塑性変形可能な材料Wを供給する(押し出す)ための供給部1と、供給部1から供給された(押し出された)材料Wを一時的に貯留する貯留部3と、貯留部3に貯留されている材料Wを圧延するための圧延部2とを備えている。
即ち、このシート成形装置は、貯留部3に貯留されている材料Wを上方から予め設定した一定圧力(設定圧)をかけて押圧するための押圧機構4が設けられている。この押圧機構4を構成する押圧部材41の押圧面41aの面積を、貯留部3の上部開口部31の面積の30~95%、特に、材料Wのはみ出しを防止する必要がある場合には、85~95%に設定するようにしている。ここで、上部開口部31の面積とは、供給部1の押出機11の回転軸を含む面Pと平行で、かつ、圧延部2の2本のロール21a、21bのうち、上方のロール21aの回転軸を含む面(図1に二点鎖線で示す)での開口面積をいう。
ちなみに、本実施形態においては、上部開口部31の寸法に対する押圧部材41の押圧面41aの寸法を、材料Wの送り方向を約70%に、また、材料Wの送り方向と直角方向(シートの幅方向に相当する)を約80%に、それぞれ設定することにより、押圧部材41の押圧面41aの面積を貯留部3の上部開口部31の面積の約56%に設定するようにしている。
さらに、押圧機構4を構成する押圧部材41の押圧面41aの面積を貯留部3の上部開口部31の面積の30~95%に設定することにより、貯留部3に上方が開放されたオープンバンク型の乖離吸収機能としての機能を持たせることができ、貯留部3の内圧の急激な変動を吸収するようにすることができる。これによって、供給部1や圧延部2の構成部材に大きな負荷がかかって装置が損傷することを未然に防止することができる。
そして、例えば、材料Wの弾性が極めて大きい場合には、30~80%程度の範囲の、上部開口部31の面積との比較で小さな押圧面41aを備えた押圧部材41を用いることができる。一方、弾性がそれほど大きくない場合には、70~95%程度、特に、材料Wのはみ出しを防止する場合には、85~95%程度の範囲の、上部開口部31の面積との比較で大きな押圧面41aを備えた押圧部材41を用いるようにすることが好ましい。
なお、押圧機構4のアクチュエータ42及びリンク機構43は、後述する第2実施形態と同様、貯留部3の中心を避けて側方に配設するようにすることが好ましい。これにより、貯留部3の上部開口部31の上方のスペースを有効に利用し、押圧部材41を分解しなくても、またロール21a、21bを移動させなくても、貯留部3の点検や清掃を可能とすることができる。
また、リンク機構43を、図1に示すように、揺動軸43aが貯留部3の外側に位置するようにしたシーソー状のレバー部材から構成することによって、圧延部2による材料払出量に対する供給部1による材料供給量が過剰に大きい場合でも、押圧部材41が貯留部3の上部開口部31の開口端まで上昇することによって、貯留部3の上方が実質的に開放されたオープンバンク状態に自動的にして材料Wを貯留部3の外に排出させることができる。これにより、装置の破損等の事故を未然に防止することができる。
そこで、正常な連続運転状態においては、押圧部材41の押圧面41aの位置に応じて、供給部1による材料Wの供給量及び/又は圧延部2による材料Wの払出量を制御する運転制御手段c1を備え、この運転制御手段c1によって供給部1による材料Wの供給量及び/又は圧延部2による材料Wの払出量を制御するようにする。
具体的には、押圧部材41の押圧面41aの位置が上限に近づけば、供給部1による材料Wの供給量を減らしたり、圧延部2による材料Wの払出量を増やすようにし、下限に近づけば、供給部1による材料Wの供給量を増やしたり、圧延部2による材料Wの払出量を減らすようにする。これにより、貯留部3内に貯留されている材料Wの量を所定量に維持し、これによって、形状が整い、寸法精度の高い、高品質のシートの成形を行うことができる。
図2~図6に、本発明のシート成形装置の第2実施形態を示す。
そして、このシート成形装置でも、貯留部3に貯留されている材料Wを上方から予め設定した一定圧力をかけて押圧するための押圧機構4を設け、該押圧機構4を構成する押圧部材41の押圧面41aの面積を貯留部3の上部開口部31の面積の30~95%、特に、材料Wのはみ出しを防止する必要がある場合には、85~95%に設定するようにしている。
なお、第1実施形態と同一部材は同一符号を記すことにより、その説明を省略する。
本実施形態では、図2~図3に示すように、アクチュエータ42をシート成形装置の下部側方に配設する。これにより、貯留部3から押圧部材41を完全に開放できるようにするとともに、上部開口部31の上方のスペースを有効に利用し、押圧部材41を分解しなくても、またロール21a、21bを移動させなくても、貯留部3の点検や清掃を可能としている。
また、アクチュエータ42をシート成形装置の下部側方に配設することにより、リンク機構43のアーム比を大きく取ることが可能となり、アクチュエータ42の発生推力を小さくすることが可能となる。
さらに、押圧部材41を完全に開放することにより、貯留部3の内圧の急激な変動を吸収することができる。
これにより、例えば、圧延部2による材料払出量に対する供給部1による材料供給量が過剰に大きい場合でも、押圧部材41が上昇して貯留部3の容積が増加することによって、貯留部3の内圧の過剰な上昇を抑制することができる。貯留部3への材料供給量が一層増加すると、押圧部材41が貯留部3の上部開口部31の開口端まで上昇することによって、貯留部3の上方が実質的に開放されたオープンバンク状態にして材料Wを貯留部3の外に排出させることができる。これにより、装置の破損等の事故をより確実に防止することができる。
一方、圧力制御手段c2が、運転初期に供給された材料Wによる押圧部材41の上昇を確実にすることにより、運転制御手段c1による材料Wの供給量の制御を確実にして、駆動前の過剰供給による圧延部2のロール21a、21b等の破損を防止するように構成されている。
この場合、通常は時間短縮の目的で、運転初期には供給部1のスクリュー回転数を高速(特に限定されるものではないが、定常運転時の主速の2~5倍程度)にし、定常状態で、スクリュー11a、11bの回転数を主速(低速)に切り替え、定格供給量になるようにする。
これを防止するため、ロール21a、21bの運転開始までを低圧(特に限定されるものではないが、定常運転時の圧力の1/10~1/2程度、本実施例においては、例えば、2MPa)とすることで、押圧部材41の動きをスムーズにさせて、運転制御手段c1による制御を確実に行うようにしている。
通常、貯留部3が密閉式(クローズドバンク型)の場合、シール性の理由から、シート幅の設定は固定である。
これに対し、本実施形態では、押圧部材41の押圧面41aの面積が貯留部3の上部開口部面積の一部(30~95%)であり、完全なシール性を必要としないため、貯留部3の側壁33の位置変更と、押圧部材41の押圧面41aの幅方向の寸法を変更することで、様々な幅寸法のシートを押し出すことが可能となる。
この場合、押圧部材41の押圧面41aの幅方向の寸法を変更する機構としては、押圧部材41に材料押圧延長部材41bを幅方向に移動可能に取り付けるようにすることができる。
これによって、押圧部材41の押圧面41aの材料Wの送り方向の寸法と直角方向(シートの幅方向に相当する)の寸法との夫々を、上部開口部31の寸法に対して所定の値(特に限定されるものではないが、例えば、80~98%)に設定することができる。
これにより、貯留部3の材料Wを押圧部材41によって下方のロール21bに押し付けることができ、材料Wの圧延部2への噛み込み性を向上させるとともに、バッチ処理の最後に貯留部3に材料Wが残留することを防止することができる。
図2、図6に基づいて次に説明する。
操作機構
先にも説明したように、圧延部2に設けられている2本のロール21a,21bは離間距離が移動操作自在とされており、この離間距離が操作機構51によって所望の距離に操作設定可能とされている。
詰まり検出手段
本願に係るシート成形装置には、詰まり検出手段c3が設けられており、この詰まり検出手段c3により、圧延部2での材料Wの詰まりを検出するように構成されている。この詰まり検出手段c3は、具体的には、供給部1の材料供給過剰による押圧部材41の設定高さ以上の上昇を検出したり、または、上部開口部31からの材料の設定以上のあふれ出し量の検出によって、詰まり検出ができるように構成されている。
緊急制御手段
この緊急制御手段c4は、前述の詰まり検出手段c3の検出結果に基づいて、詰まり検出手段c3が詰まりを検出した場合に、操作機構51、回転駆動機構M、供給部1の押出機11及び押圧機構4等に所定の制御指令を出力するように構成されている。
尚、前述の運転制御手段c1,圧力制御手段c2、詰まり検出手段c3、緊急制御手段c4は、所定の機能を果たすためのソフトウェアが格納された状態のマイコン等のコンピューターCにより構成されている。また、緊急制御手段c4が指令した所定の制御指令に基づいて、シート成形装置の各手段等により以下のトラブル解消方法が実行される。
次に、前記シート成形装置において、供給部1に材料Wが投入される上流の混練機で混練不良があったり、混練温度が適切でなかったために可塑化が十分でなく、そのために材料Wに硬い部分ができて、圧延部2が過負荷になったり、スリップして噛み込まなかったりして、圧延部2で材料Wを圧延できずに詰まってしまうことがあるが、その圧延部2で材料が詰まった場合の解消方法を説明する。
第1の方法は、図2及び図7に示すように、予め前記一対のロール21a、21bを、互いに上下に近接離間移動自在に圧延部2のフレーム(圧延部本体50)に取り付けておく。そして、詰まり検出手段c3による圧延部2での材料Wの詰まり検出に基づいて、操作機構51により一対のロール21a、21b間の隙間をシートの成形予定厚よりも広げ、回転駆動機構Mを働かせて一対のロール21a、21bの少なくとも一方を正回転方向に駆動回転させながら、貯留部3に貯留する材料Wを、供給部1による材料押し込み操作により、一対のロール21a、21b間に押し込む。
この時、押圧機構4による押圧力は、通常時の設定圧又は、圧力をかけないフリーの状態であっても良い。
第2の方法は、前記第1の方法に加えて、図2及び図8に示すように、操作機構51により一対のロール21a,21b間の隙間をシートの成形予定厚よりも広げた後に、押圧機構4の押圧力を通常時の設定圧より高い圧力にすることである。図8において、押圧機構4の先端に図示する矢印は、押圧力が通常時の設定圧より高い圧力とされたことを示している。
第3の方法は、図2及び図9に示すように、操作機構51により一対のロール21a,21b間の隙間をシートの成形予定厚よりも広げた後に、供給部1による材料Wの供給作動は停止させて、押圧機構4の押圧力を通常時の設定圧より高い圧力にすることである。図9においても、押圧機構4の先端に図示する矢印は、押圧力が通常時の設定圧より高い圧力とされたことを示している。
第4の方法は、前記第1の方法に加えて、図2及び図10に示すように、操作機構51により一対のロール21a、21b間の隙間をシートの成形予定厚よりも広げた後に、押圧機構4を繰り返し上下動させることである。図10において、押圧機構4の上側に図示する弧状両端矢印が、繰り返し上下動させた状態を示している。
尚、繰り返し上下動させる押圧機構4の最大圧は、通常時の設定圧であってもよく、また、それより高い圧であっても良い。
第5の方法は、図2及び図11に示すように、供給部1の供給作動を停止して、操作機構51により一対のロール21a、21b間の隙間をシートの成形予定厚よりも広げた後に、押圧機構4を繰り返し上下動させることである。図11においても、押圧機構4の上側に図示する弧状両端矢印が、繰り返し上下動させた状態を示している。
尚、繰り返し上下動させる押圧機構4の最大圧は、通常時の設定圧であってもよく、また、それより高い圧であっても良い。また、この上下動の繰り返しは少なくとも一回以上であればよい。
また、本発明のシート成形装置に供給される材料は、未加硫のゴムや合成樹脂材やそれらを含む材料などのように弾性のある材料以外に、無機質粘土状の弾性のない可塑性のある材料であってもよく、それらを塑性変形可能な材料と総称する。
Claims (9)
- 塑性変形可能な材料を押し出す供給部と、当該供給部から押し出された材料を一時的に貯留する貯留部と、当該貯留部に貯留されている材料を圧延してシート状に成形する圧延部とを備えたシート成形装置において、
前記貯留部に貯留されている材料を上方から予め設定した圧力で押圧する押圧機構を設け、当該押圧機構を構成する押圧部材の押圧面の面積を、前記貯留部の上部開口部の面積の30~95%に設定したシート成形装置。 - 前記押圧機構が、押圧部材と、当該押圧部材の押圧面から前記貯留部に貯留されている材料に予め設定した圧力をかけるためのアクチュエータと、当該アクチュエータの力を前記押圧部材に伝達するリンク機構とからなる請求項1に記載のシート成形装置。
- 前記押圧部材の押圧面の位置に応じて、前記供給部による材料の供給量及び/又は前記圧延部による材料の払出量を制御する運転制御手段を備えた請求項1に記載のシート成形装置。
- 前記運転制御手段が、前記圧延部の駆動前に、前記供給部による材料供給量を定格供給量より大きい高供給量に設定し、前記押圧部材の押圧面の位置が上昇したときに、前記圧延部の駆動を開始し、前記供給部の材料供給量を定格供給量に設定する請求項3に記載のシート成形装置。
- 前記押圧機構の圧力を、前記圧延部の駆動前は前記押圧部材の上昇応答性が上がる低圧に保持するとともに、前記圧延部の駆動後に予め設定した一定圧力に保持する圧力制御手段を備えた請求項1に記載のシート成形装置。
- 前記貯留部の側壁を接離方向に移動可能に設けるとともに、前記押圧部材を幅方向に伸縮可能に構成した請求項1に記載のシート成形装置。
- 前記押圧部材により押圧された材料を、前記圧延部を構成する2本のロールのうちの下方のロールで支持する請求項1に記載のシート成形装置。
- 前記圧延部を、材料をシート状に成形する上下一対のロールとそれらのロールの内の少なくともいずれか一方を駆動回転する回転駆動機構とを設けて構成し、
前記一対のロールを互いに近接離間移動自在に取り付けると共に、前記一対のロールを離間移動操作する操作機構と、
前記圧延部での材料の詰まりを検出する詰まり検出手段と、
その詰まり検出手段による詰まり検出に基づいて、前記一対のロール間の隙間をシートの成形予定厚よりも広げるように前記操作機構に操作させる制御指令を出し、且つ、前記回転駆動機構に正回転駆動をさせる制御指令を出すと共に、前記押圧機構の押圧力を前記設定圧より高い圧力にする制御指令を出す緊急制御手段とを備えた請求項1に記載のシート成形装置。 - 前記圧延部を、材料をシート状に成形する上下一対のロールとそれらのロールの内の少なくともいずれか一方を駆動回転する回転駆動機構とを設けて構成し、
前記一対のロールを互いに近接離間移動自在に取り付けると共に、前記一対のロールを離間移動操作する操作機構と、
前記圧延部での材料の詰まりを検出する詰まり検出手段と、
その詰まり検出手段による詰まり検出に基づいて、前記一対のロール間の隙間をシートの成形予定厚よりも広げるように前記操作機構に操作させる制御指令を出し、且つ、前記回転駆動機構に正回転駆動をさせる制御指令を出すと共に、前記押圧機構を上下動させる制御指令を出す緊急制御手段とを備えた請求項1に記載のシート成形装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020117000002A KR101514495B1 (ko) | 2008-06-05 | 2008-10-31 | 시트 성형장치 |
CN200880129638.8A CN102056722B (zh) | 2008-06-05 | 2008-10-31 | 片材成形装置 |
EP08874540.1A EP2286975B1 (en) | 2008-06-05 | 2008-10-31 | Sheet forming device |
US12/995,791 US8517714B2 (en) | 2008-06-05 | 2008-10-31 | Sheet forming device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-147782 | 2008-06-05 | ||
JP2008147782A JP4607209B2 (ja) | 2007-06-06 | 2008-06-05 | シート成形装置 |
JP2008-256863 | 2008-10-01 | ||
JP2008256863A JP5102168B2 (ja) | 2008-10-01 | 2008-10-01 | シート成形装置のトラブル解消方法及びシート成形装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009147756A1 true WO2009147756A1 (ja) | 2009-12-10 |
Family
ID=41397848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/069964 WO2009147756A1 (ja) | 2008-06-05 | 2008-10-31 | シート成形装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8517714B2 (ja) |
EP (1) | EP2286975B1 (ja) |
JP (1) | JP5102168B2 (ja) |
KR (1) | KR101514495B1 (ja) |
CN (1) | CN102056722B (ja) |
WO (1) | WO2009147756A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011073428A (ja) * | 2009-12-01 | 2011-04-14 | Moriyama:Kk | シート成形装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5027717B2 (ja) * | 2008-04-08 | 2012-09-19 | 株式会社モリヤマ | 2軸押出機 |
JP5477258B2 (ja) * | 2010-11-02 | 2014-04-23 | トヨタ紡織株式会社 | 熱可塑性樹脂組成物の製造方法及びその製造装置 |
KR101311262B1 (ko) | 2011-12-21 | 2013-09-25 | 한국타이어 주식회사 | 타이어 정련공정의 시트고무 믹서 |
JP6202624B2 (ja) * | 2014-06-30 | 2017-09-27 | 日本スピンドル製造株式会社 | 2軸押出機 |
JP2018122478A (ja) * | 2017-01-31 | 2018-08-09 | 株式会社神戸製鋼所 | スクリュ式押出機 |
JP6814709B2 (ja) * | 2017-08-10 | 2021-01-20 | 株式会社神戸製鋼所 | ロール付スクリュ押出機 |
FR3093458A1 (fr) * | 2019-03-06 | 2020-09-11 | Compagnie Generale Des Etablissements Michelin | Machine de Mélangeage et d’Extrusion à Bi-Vis Autonettoyante et Méthode d’Utilisation |
FR3093456A1 (fr) * | 2019-03-06 | 2020-09-11 | Compagnie Generale Des Etablissements Michelin | Mécanisme de Sortie d’un Mélangeur à Bi-Vis Conique Convergente |
FR3093459A1 (fr) | 2019-03-06 | 2020-09-11 | Compagnie Generale Des Etablissements Michelin | Gestion de Température des Mélanges de Caoutchouc Sortant un Mélangeur à Bi-Vis Conique Convergente |
FR3093457A1 (fr) | 2019-03-06 | 2020-09-11 | Compagnie Generale Des Etablissements Michelin | Machine de Mélangeage et d’Extrusion à Bi-Vis avec Éléments Amovibles |
US11305467B2 (en) | 2020-01-08 | 2022-04-19 | Mega Machinery, Inc. | Toggled roll stack |
US11919220B2 (en) * | 2022-04-19 | 2024-03-05 | Inteplast Group Corporation | Defective web identification system and method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62211114A (ja) * | 1986-03-12 | 1987-09-17 | Masao Moriyama | 樹脂材料をシ−ト状に成形する装置 |
JPH0242331A (ja) | 1988-08-03 | 1990-02-13 | Anritsu Keiki Kk | 接触式温度センサ |
JPH05104607A (ja) | 1991-10-21 | 1993-04-27 | Kobe Steel Ltd | ローラダイ付押出機 |
JP2006231872A (ja) * | 2005-02-28 | 2006-09-07 | Yokohama Rubber Co Ltd:The | ゴムシーティング装置およびゴムシートの形成方法 |
JP2006231582A (ja) | 2005-02-23 | 2006-09-07 | Mitsubishi Heavy Ind Ltd | シーティング装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5463183A (en) * | 1977-10-31 | 1979-05-21 | Yokohama Rubber Co Ltd | Roller head extruder |
JPS56118841A (en) * | 1980-02-25 | 1981-09-18 | Kobe Steel Ltd | Regulator for bank amount in extruder for rubber and the like |
US4810179A (en) * | 1988-01-27 | 1989-03-07 | Marshall & Williams Company | Force indicator for casting machines |
JPH0637065B2 (ja) * | 1989-11-21 | 1994-05-18 | 東芝機械株式会社 | バンク量モニタ方法,シート成形方法およびそれらのためのシート温度測定方法ならびにそれらの装置 |
JPH091631A (ja) * | 1995-06-16 | 1997-01-07 | Kobe Steel Ltd | ローラヘッド押出機のシート幅調整装置 |
JP2871565B2 (ja) * | 1995-12-26 | 1999-03-17 | 株式会社神戸製鋼所 | ローラヘッド押出機とその制御方法 |
CN2442828Y (zh) * | 2000-01-26 | 2001-08-15 | 益阳橡胶机械厂 | 一种挤出机 |
JP4717551B2 (ja) * | 2005-08-23 | 2011-07-06 | 東芝機械株式会社 | シート成形装置およびロール間隙制御方法 |
CN201006635Y (zh) * | 2007-01-12 | 2008-01-16 | 王洪民 | 液压双螺杆挤出压片机 |
-
2008
- 2008-10-01 JP JP2008256863A patent/JP5102168B2/ja active Active
- 2008-10-31 US US12/995,791 patent/US8517714B2/en active Active
- 2008-10-31 CN CN200880129638.8A patent/CN102056722B/zh active Active
- 2008-10-31 EP EP08874540.1A patent/EP2286975B1/en active Active
- 2008-10-31 KR KR1020117000002A patent/KR101514495B1/ko active IP Right Grant
- 2008-10-31 WO PCT/JP2008/069964 patent/WO2009147756A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62211114A (ja) * | 1986-03-12 | 1987-09-17 | Masao Moriyama | 樹脂材料をシ−ト状に成形する装置 |
JPH0242331A (ja) | 1988-08-03 | 1990-02-13 | Anritsu Keiki Kk | 接触式温度センサ |
JPH05104607A (ja) | 1991-10-21 | 1993-04-27 | Kobe Steel Ltd | ローラダイ付押出機 |
JP2006231582A (ja) | 2005-02-23 | 2006-09-07 | Mitsubishi Heavy Ind Ltd | シーティング装置 |
JP2006231872A (ja) * | 2005-02-28 | 2006-09-07 | Yokohama Rubber Co Ltd:The | ゴムシーティング装置およびゴムシートの形成方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2286975A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011073428A (ja) * | 2009-12-01 | 2011-04-14 | Moriyama:Kk | シート成形装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2286975A1 (en) | 2011-02-23 |
KR20110027748A (ko) | 2011-03-16 |
EP2286975B1 (en) | 2016-06-29 |
US20110123659A1 (en) | 2011-05-26 |
KR101514495B1 (ko) | 2015-04-22 |
JP2010083087A (ja) | 2010-04-15 |
EP2286975A4 (en) | 2014-09-17 |
CN102056722B (zh) | 2014-05-07 |
US8517714B2 (en) | 2013-08-27 |
CN102056722A (zh) | 2011-05-11 |
JP5102168B2 (ja) | 2012-12-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009147756A1 (ja) | シート成形装置 | |
JP4607209B2 (ja) | シート成形装置 | |
KR101909344B1 (ko) | 콘크리트 파일 몰드의 원터치 볼트 윤활유 자동 분사장치 | |
CN108840147A (zh) | 一种薄膜在线预拉伸设备 | |
JP2009012463A5 (ja) | ||
JP6198743B2 (ja) | 作業装置 | |
US10011047B1 (en) | Masonry veneer machine | |
CN103387071A (zh) | 自动铺纸机 | |
JP5563229B2 (ja) | 射出成形機の制御装置及びその制御方法 | |
CN106925837A (zh) | 一种改进型剪板机 | |
KR101076687B1 (ko) | 합성수지의 믹싱장치 | |
CN101181819B (zh) | 减小弹性进料件上张力的装置 | |
JP5255850B2 (ja) | 射出成形機におけるスクリュ回転制御方法及びスクリュ回転制御装置 | |
JP2010155318A (ja) | 未加硫ゴムシートの定寸切断装置及び定寸切断方法 | |
CN102556603A (zh) | 一种刮板输送机链条张紧系统 | |
JP5102248B2 (ja) | シート成形装置 | |
CN103958158A (zh) | 圆筒状橡胶构件的成形方法 | |
JP2009023312A (ja) | 型締装置の型厚調整ナットの潤滑方法 | |
JP4687123B2 (ja) | ゴム混練設備及びゴム混練方法 | |
KR101633594B1 (ko) | 압착롤러를 이용한 x축 및 y축 이동식 고무시트 자동 적재 장치 | |
JP6455513B2 (ja) | ブリケットマシン | |
JP4681652B2 (ja) | タイヤ製造方法 | |
CN206663323U (zh) | 塑胶管件裁切机 | |
JP5571221B1 (ja) | ローラヘッド押出機およびその制御方法 | |
CN217920467U (zh) | 物料储柜及物料生产流水线 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200880129638.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08874540 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008874540 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12995791 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20117000002 Country of ref document: KR Kind code of ref document: A |