WO2010147014A1 - 混練槽反転排出式密閉加圧型混練機 - Google Patents
混練槽反転排出式密閉加圧型混練機 Download PDFInfo
- Publication number
- WO2010147014A1 WO2010147014A1 PCT/JP2010/059604 JP2010059604W WO2010147014A1 WO 2010147014 A1 WO2010147014 A1 WO 2010147014A1 JP 2010059604 W JP2010059604 W JP 2010059604W WO 2010147014 A1 WO2010147014 A1 WO 2010147014A1
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- WIPO (PCT)
- Prior art keywords
- kneading tank
- kneading
- pressure
- tank
- opening
- Prior art date
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Classifications
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/10—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
- B29B7/248—Component parts, details or accessories; Auxiliary operations for feeding with plungers for introducing the material, e.g. from below
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/26—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
Definitions
- kneading machines for high-viscosity kneading materials such as batch type rubbers and plastics are open type and closed pressure type (for example, see Patent Document 1).
- the present invention relates to a kneading tank reversing discharge type and hermetic pressure type kneading machine.
- the kneading tank reverse discharge type and hermetic pressure type kneading machine known so far are superior to the kneading tank bottom open discharge type kneading machine in terms of economics of equipment construction cost, etc.
- Kneading It takes time and effort to invert the tank and discharge the kneaded product.
- the kneading tank 3 having two kneading rotors 10 in the inside thereof is arranged around the axis of the rotary shaft 11 of one kneading rotor 10 with a 140 to
- the two kneading rotors 10 in the tank are appropriately rotated in the forward and reverse directions while being inverted by 160 °, and the kneaded material A is discharged from the kneading tank 3.
- the inversion angle of the kneading tank 3 is 140 to 160 °
- the inversion direction side wall 8b of the opening wall 8 surrounding the four circumferences of the upper surface charging opening 4 of the tank serves as a chute
- the kneaded material A of the high-viscosity polymer compound has a large friction. At least its substantial amount did not slide down the shoot For this reason, the worker is forced to perform a discharge assisting work that is scraped off with a rake-like tool.
- the work is scraping by rotating the kneading rotor, it is a very dangerous work, and there is an urgent need to eliminate manual work with simple means.
- the worker has to go back and forth between the batch charging operation and the kneading machine that performs the discharging operation, which causes the batch cycle to become longer and the productivity to be impaired.
- the reversal angle of the kneading tank 3 is further increased, for example, if the reversal is reversed by 180 °, the kneaded product A may touch the chute and the discharge is hindered.
- it does not take time and labor to slide down, but it is strong in the kneading tank 3 with a high horsepower driving device for high-speed and wide-range turning operation and a shock absorbing mechanism for stopping operation when the reversal is completed by speeding up. Since a structure is required, there is a limit to increasing the reversal speed and expanding the reversal angle from the viewpoint of equipment cost and energy saving.
- the reversing operation time is longer than that of the kneading tank bottom open discharge type kneader, and there is a problem in productivity.
- the receiving opening 37 of the kneading material A to be discharged is inserted because the charging opening surface of the inverted kneading tank 3 is lowered. It is necessary to cut the space on the floor.
- the floor is not cut and pits are not provided, it is indispensable to place the kneading machine on a stand and drop it from a high place to the receiving container 37, but if the kneading machine is installed at a high place, kneading
- the tank reversal discharge type kneader is less advantageous than the kneading tank bottom open discharge type, which impairs the economics of facility construction at the initial stage or during relocation. Therefore, the present situation is that the kneading machine has to be introduced while maintaining the poor productivity of the reversing discharge type kneading machine that is reversed by 140 °.
- the above problem (2) is that a large amount of the powder compounding agent introduced into the kneading tank 3 for kneading a high viscosity kneading material such as rubber or plastic in the closed kneader is charged into the charging opening 4.
- the pressure lid 5 is moved downwardly to be entrained by the air pushed out from the inside of the kneading chamber 7, and is ejected upward from the gap between the four circumferences of the pressure lid 5 and the four opening walls 8 of the kneading tank 3. It is a problem that measures must be taken.
- the powder compound recovered by the external dust collector can only be turned into waste as dust. This situation not only causes a loss of resources, but also produces a kneaded product that does not strictly conform to the compounding recipe due to the scattering of part of the powder compounding agent, and does not achieve mass production with reproducible design quality. Is damaged.
- the technical problem of the present invention is to solve the above-mentioned problem that the operation of discharging the kneaded product (1) takes time and effort by simple means, and discharge the kneaded product without increasing the reversal angle of the kneading tank. It is an object of the present invention to provide an easy-to-mix kneading tank reverse discharge type closed pressure type kneader. Another technical problem of the present invention is to solve the problem (2) above, and it is impossible to prevent the powder compounding agent from being ejected from the kneading tank containing the charged powder compounding agent. An object of the present invention is to provide a kneading tank reverse discharge type closed pressure type kneader capable of recovering as accurately and efficiently as possible.
- two parallel kneading rotors rotating in a kneading tank whose top opening can be closed by an openable / closable pressure lid are provided.
- the pressure lid of the pressure lid is surrounded so as to surround the four rounds of the charging opening at the top of the kneading tank.
- An opening wall whose periphery rises and lowers along its inner surface is provided, and the front wall located on the reverse side of the kneading tank in the opening wall is separated from the opening wall located on the other side,
- the lower end of the front wall is rotatably attached to the kneading tank by a hinge so that the front wall hangs downward from the kneading tank at the time of the reversal, and the kneading tank is placed 90 to 120 from the position where the charging opening faces upward.
- Invertable within the range of ° Kneading tank inversion draining sealed pressurized type kneader with symptoms is provided. This configuration will be described in more detail.
- a kneading tank reversing discharge type closed pressure type kneader includes a kneading tank whose top opening can be closed by an openable / closable pressure lid, and the kneading tank.
- Two parallel kneading rotors that are pivotally supported in the shaft and connected to a drive source, and a kneading tank for reversing the kneading tank around the axis of one kneading rotor for discharging the kneaded material
- a reversing mechanism and the kneading tank has an opening wall that surrounds the four circumferences of the upper charging opening, and the periphery of the pressure lid is raised and lowered along the inner surface of the opening wall.
- the front wall located on the reversing side of the kneading tank in the opening wall is separate from the opening wall located on the other side, and the lower end of the front wall can be rotated by a hinge to the kneading tank
- the kneading tank has a charging opening.
- the kneading tank is constituted by connecting two partial C-shaped cylinders facing each other horizontally and connecting them, A kneading rotor is disposed in each of the two partial cylinders of the kneading tank, and the shafts of both kneading rotors are pivotally supported by a pair of end plates connected to both ends of the partial cylinder so that they are rotationally driven.
- a clamp that engages and disengages with the front edge of the end plate of the kneading tank that forms the adjacent opening wall on both side ends of the front wall of the opening wall.
- the driving mechanism supported by the end plate is provided at the lower end of the front wall of the opening wall so that the support shaft constituting the hinge can be rotated, and the front wall is clamped to the front edge of the end plate.
- the kneading position that surrounds the charging opening of the kneading tank by engaging with When is displaced it can be formed into a kneaded product discharged position downwardly depending for discharge of the kneaded material by the inversion of the kneading tank to release the engagement of the clamp.
- the support shaft provided at the lower end of the front wall and constituting the hinge is rotatable by a bearing provided on the end plate.
- An arm projecting in a direction orthogonal to the axial direction of the support shaft is connected to the outer end of the support shaft projecting outside through the bearing of the end plate, and supported by the tip of the arm and the end plate.
- the tip of the piston rod of the drive cylinder that constitutes the drive mechanism is rotatably connected by a pin, and the kneaded material discharge for discharging the kneaded material and the kneading position surrounding the front opening and the charging opening by the drive cylinder. It is configured to be shiftable to the position.
- the charging opening of the kneading tank is covered together with the pressure lid for opening and closing the upper surface of the charging opening, and the opening of the kneading tank is lifted by a lifting mechanism.
- An internal pressure cover that seals the charging opening of the kneading tank by pressing against the peripheral edge of the wall is provided, and the piston rod in the fluid pressure cylinder device on the support frame that drives the pressurization lid to move up and down is hermetically sealed on the internal pressure cover.
- the inner space of the inner pressure cover is slidably penetrated, and the inner space of the inner pressure cover is at least up to an intermediate stop position where the pressure lid reaches the upper end of the opening wall in a state where the inner pressure cover is pressed against the periphery of the opening wall of the kneading tank.
- the pressure cover is lowered from the intermediate stop position in a state where the inner pressure cover is in pressure contact with the periphery of the opening wall of the kneading tank, the pressure cover is moved from the kneading tank.
- the composition air sealing mechanism is formed in which the replacement air ejected into the internal pressure cover with the powder composition through the internal pressure cover together with the powder composition is formed, and in the space between the internal pressure cover and the pressure lid. Accumulated powder compounding agent is collected around the pressurization lid by air blow, and the powder compounding agent collected as the negative pressure in the kneading tank below the pressure lid is increased by raising the pressure lid of the kneading tank.
- a collecting mechanism for sucking and collecting in the kneading tank is configured.
- the exhaust hole provided in the top plate of the internal pressure cover has a built-in filter for collecting the powder compounding agent ejected into the internal pressure cover accompanying the air discharged when the pressure in the kneading tank is increased
- the duct of the collecting device is connected, the inside of the inner pressure cover is communicated with the atmosphere through the filter in the collecting device, the duct is erected in the driving direction of the inner pressure cover by the lifting mechanism, and the top of the support frame is A plate is slidably slid through the collector, and the powder compounding agent collected in the filter is wiped off from the filter by an air flow in a direction opposite to the collection, and is passed through the duct into the internal pressure cover.
- a pressurized air nozzle is provided, and a cover that covers the upper surface of the pressure lid is provided as means for collecting the powder compound deposited in the inner pressure cover around the pressure lid by air blowing. And attaching a member, the upper surface of the cover member and the slope portion, in the pressure cover, be provided with air nozzles blow down the powder formulations deposited on the slope portion on the downstream side of the slope portion is desired.
- the opening wall on the front surface of the kneading tank hangs downward to inhibit the kneaded material from dropping.
- the time required for reversal is short because it is a reversal of the angle range of 90 to 120 °, which not only contributes to the shortening of the batch cycle, but is also a rotation operation in the dredging range.
- the powder compounding agent ejected from the kneading tank after being charged into the kneading tank is not sucked into an external dust collector for improving the environment around the kneading machine, and is within an internal pressure cover provided on the kneading tank. Since it is equipped with a recovery mechanism that allows it to be captured, recovered in the same batch, and kneaded there, it does not mix powder compounding agents of different batches in terms of quality control. This is an important function related to the quality of the kneaded product, and in addition, it has a great effect on valuable recovery of the compounding agent and reduction of dust waste.
- the problem that it takes time and trouble to discharge the kneaded material by simple means is solved, and the charged powder composition A powder mixing agent cannot be prevented from being ejected from the kneading tank containing the agent, but a kneading tank reversing discharge type closed pressure type kneader capable of recovering it as accurately and efficiently as possible for each batch is provided. can do.
- the hermetic pressure type kneader of this embodiment is generally provided on a bed 1 with a support frame 2 for supporting necessary elements of the kneader described below, and a kneading tank 3, and the support frame 2
- a pressure lid 5 for opening and closing the charging opening 4 having a rectangular tube shape on the upper surface of the kneading tank 3 and pressurizing the kneaded material in the kneading tank 3 is supported via a lid pressurizing mechanism 6. ing.
- the kneading tank 3 has two C-shaped partial cylinders 3a arranged horizontally and connected to each other, and a kneading chamber 7 is formed therein.
- a kneading rotor is provided in each of the two partial cylinders 3a. 10, and the shaft 11 of the kneading rotor 10 is pivotally supported by a pair of end plates 13 connected to both ends of the C-shaped partial cylinder 3a in the kneading tank 3 as shown in FIG. These are connected to a drive source (not shown) for rotationally driving them.
- the charging opening 4 at the upper part of the kneading chamber 7 is provided with opening walls 8 surrounding the four circumferences, and the charging opening 4 of the kneading tank 3 is opened and closed by moving up and down along the inner surface of the opening wall 8.
- the pressurizing lid 5 to be driven can be driven up and down by a lid pressurizing mechanism 6 disposed above the kneading tank 3.
- the pressure lid 5 seals between the opening wall 8 around the charging opening 4 in the kneading tank 3 and the kneaded material in the kneading tank 3 when the powder compounding agent is kneaded. Is for pressurizing.
- the lid pressurizing mechanism 6 of the pressure lid 5 is constituted by a fluid pressure cylinder device 14, and the pressure lid 5 is attached to the piston rod 15 via a connecting member 16.
- the pressure lid 5 is moved and held by the fluid pressure cylinder device 14 to the raised position shown in FIG. 5, the intermediate stop position shown by the solid line in FIG. 1, and the lower limit position (kneading position) shown by the chain line in FIG. It is possible.
- the kneading tank 3 discharges the kneaded product A that has been kneaded by reversing, so that the kneading tank 3 is rotated around the central axis of the shaft 11 of the kneading rotor 10 on one side (reversing side) of the kneading tank 3 on the bed 1.
- the reversing shaft 12 is rotatably supported in the range of 90 to 120 °, and as shown in FIG. 2, a kneading tank reversing mechanism having a hydraulic cylinder 18 as a driving source is provided.
- the hydraulic cylinder 18 is supported on the bed 1 by a horizontal shaft 21 orthogonal to the piston rod 19, and the tip of the piston rod 19 extends from the periphery of the reversing shaft 12 in the kneading tank 3 to the shaft 12.
- a pin 24 is rotatably connected to the tip of a reversing lever 23 that protrudes in a direction perpendicular to the pin. Therefore, by the driving of the piston rod 19, the kneading tank 3 is positioned at the solid line in FIG. 2 where the charging opening 4 faces upward, and the chain line position in FIG. Can be rotated between.
- the reversal angle of the kneading tank 3 is not limited to the 90 ° reversal example shown in FIGS. 2 and 5, and generally includes the angle range as shown in FIG. It can be rotated in the range of 90 ° to 120 ° from the position it faces.
- the inversion range of the kneading tank 3 is set by a stopper.
- the opening wall 8 is connected to the four circumferences of the upper part of the kneading tank 3.
- the opening wall 8 is connected to the upper ends of a pair of end plates 13 connected to both ends of the partial cylinder 3 a in the kneading tank 3.
- an upper wall connected so as to extend upward from one upper end of the pair of partial cylinders 3a, and a front wall 8a rotatable by a hinge 26 disposed so as to extend upward from the other upper end.
- the whole is formed so as to form a rectangular cylinder.
- the front wall 8a is positioned on the reversal side of the kneading tank 3, and is configured as a movable body that is separate from the opening wall 8 positioned at another part, and is kneaded in the kneading tank 3.
- the hinge 26 is formed so as to hang downward from below the charging opening 4.
- the front wall 8a shown with the chain line in FIG. 6 has shown the state which does not hang down the front wall 8a like a prior art example.
- a support shaft 27 that is fixed to the lower end of the front wall 8a and constitutes the hinge 26 is rotatably supported by a bearing 28 provided on the end plate 13, and is externally passed through the bearing 28 of one end plate 13.
- a drive mechanism in which an arm 29 protruding in a direction orthogonal to the axial direction of the support shaft 27 is connected to the shaft end of the support shaft 27 that protrudes, and the tip of the arm 29 and the end plate 13 are supported by the shaft 33.
- the tip of the piston rod 31 of the drive cylinder 30 that constitutes the shaft is rotatably connected by a pin 32.
- the drive cylinder 30 is controlled so as to propel and drive the piston rod 31 simultaneously with the operation of reversing the kneading tank 3 by the hydraulic cylinder 18 constituting the kneading tank reversing mechanism by a control device not shown.
- the drive cylinder 30 is driven, the engagement of the clamp 35 with the end plate 13 is first released, and then the kneading tank 3 is tilted by the hydraulic cylinder 18 and at the same time the front wall 8a. 5 or 6, the kneaded material A in the kneading tank 3 opens with the help of the rotational force of the kneading rotor 10. It is discharged into the receiving container 37.
- the operation of discharging the kneaded material A after the kneading is completed reverses the kneading tank 3 by 90 to 120 ° as described above.
- the kneading rotor 10 is rotated in this state when the wall 8a is open, the kneaded material A in the kneading tank 3 is scraped out and discharged from the kneading tank 3 so as to fall directly outside the tank.
- the receiving container 37 stands by at the position where the kneaded material A falls, but most of the open portion of the kneading tank 3 faces the receiving container 37 so that the opening wall 8 except the front wall 8a covers the receiving container 37. Therefore, there is no danger to the operator due to the rotation of the kneading rotor 10.
- the hydraulic cylinder 18 and the drive cylinder 30 perform the reverse operation to that described above, so that the front wall of the opening wall 8 8a takes an upright position like the other opening walls 8, and the clamps 35 at both ends automatically engage with the front edge 13a of the end plate 13 forming the opening wall 8 adjacent thereto.
- the front wall 8a takes a kneading position surrounding the charging opening 4 of the kneading tank 3, and the upper part of the kneading tank 3 is formed in a dense cylindrical shape without powder leakage.
- a cooling water pipe 42 a for feeding cooling water to a cooling chamber 41 provided inside the pressure lid 5 is inserted into the guide rod 40, and the cooling water is circulated in the other guide rod 40.
- the cooling water discharge pipe 42b to be discharged is inserted so that the pressure lid 5 can be cooled.
- the cooling water pipe 42a and the cooling water discharge pipe 42b are each connected to a cooling water supply source via a flexible tube.
- a cooling jacket 43 is also provided on the outer periphery of the kneading tank 3, and cooling water is circulated through the jacket 43 through a flow path (not shown) so that it can be cooled in the same manner.
- a pressure lid 5 that opens and closes the upper surface of the charging opening 4 of the kneading tank 3 is disposed so as to cover the charging opening 4 of the kneading tank 3.
- an internal pressure cover 45 that can be moved up and down by a lifting mechanism 46 such as a cylinder is provided.
- the inner pressure cover 45 is formed so as to seal the charging opening 4 of the kneading tank 3 by pressing the lower peripheral edge 45a thereof in close contact with the upper edge of the opening wall 8 of the kneading tank 3. Is.
- the internal space of the internal pressure cover 45 is such that at least the pressure lid 5 is at the upper end of the opening wall 8 when the internal pressure cover 45 is in pressure contact with the peripheral edge of the opening wall 8 of the kneading tank 3.
- the intermediate stop position solid line position in FIG.
- the elevating mechanism 46 of the inner pressure cover 45 is configured by providing the required number of fluid pressure cylinder devices as shown in FIG. 4 on the support frame 2, and its piston rod 46a is connected to the inner pressure cover 45, so that FIG.
- Reference numeral 48 shown in FIG. 1 indicates that the inner pressure cover 45 is in the upper limit position during the operation of charging the material into the kneading tank 3 and the powder compounding agent to be charged cannot be prevented from being scattered. It is a cover.
- the dustproof cover 48 has a support shaft of the dustproof cover lifting / lowering arm 48a pivotally attached to the support frame 2 as a fulcrum, the lifting / lowering locus draws a circular arc and can be opened / closed without contacting the components on the opening wall 8. I am doing so.
- the internal pressure cover 45 includes a piston rod 15 of a fluid pressure cylinder device 14 that drives the pressurization lid 5 to move up and down, and a guide that guides the elevation of the pressurization lid 5.
- the rod 40 is penetrated airtightly and slidably.
- the pressure lid 5 can be raised and lowered independently of the inner pressure cover 45 within a range not interfering with the inner pressure cover 45, but if necessary, the inner pressure cover 45 can be raised and lowered by the control circuit. It can be configured so that it can be linked and released.
- the lower end of the duct 53 of the collection device 50 incorporating the filter 51 is connected to the internal pressure cover 45 in an exhaust hole 45c provided in the top plate 45b.
- the collecting device 50 is for collecting the powder compounding agent accompanying the air discharged from the periphery of the pressure lid 5 when the pressure in the kneading chamber 7 is increased.
- the duct 53 communicates with a space 56 between the cylindrical filter 51 in the collection device 50 and the outer cylinder 55 of the accommodating portion, and the upper end of the space 56 is sealed with a partition plate 57 to which the upper portion of the cylindrical filter 51 is fixed.
- An open portion at the upper end of the cylindrical filter 51 with the lower end sealed is an exhaust provided with a central hole 57a of the partition plate 57, a ventilation chamber 58 on the partition plate 57, and a damper (not shown). It is open to the atmosphere through a duct nozzle 59.
- the duct 53 is erected in the driving direction of the internal pressure cover 45 by the elevating mechanism 46 and slidably penetrates the seal ring 2b in the top plate 2a of the support frame 2.
- the collecting device 50 is provided with a pressurized air nozzle 60 for removing the powder compounding agent collected in the filter 51 from the filter 51 by an air flow in a direction opposite to that of the collecting.
- the pressurized air nozzle 60 is for returning the powder compounding agent deposited on the filter 51 from the duct 53 through the inner pressure cover 45 to the kneading tank 3 to make the kneaded product into an accurate compounding formulation. .
- the air in the kneading tank 3 also rises in temperature and the pressure rises.
- the gas in the internal pressure cover 45 flows into the collecting device 50, and the powder compounding agent accompanying the gas is discharged.
- the pressurized air nozzle 60 in the collection device 50 is mainly for recovering the filtered powder compounding agent into the kneading tank 3 through the inner pressure cover 45.
- the pressure lid 5 in the inner pressure cover 45 has a structure such as a connecting member 16 on the upper surface thereof.
- a cover member 62 that covers all the upper surfaces of the members is attached.
- the upper surface of the cover member 62 covers at least the entire planar shape of the pressure lid 5, so that the powder compounding agent scattered in the internal pressure cover 45 is on the cover member 62 or the peripheral portion of the pressure lid 5. Will be deposited on either.
- the upper surface of the cover member 62 has a slope portion 62a that is inclined to one side, and an air nozzle 63 that blows down the powder compounding agent deposited on the slope portion 62a to the downstream side along the slope portion 62a. It is provided in the upper part in the internal pressure cover 45. Therefore, the powder compounding agent deposited on the inner pressure cover 45 can be caused to flow down to the periphery of the pressure lid 5 by the air blow from the air nozzle 63, and the powder compounding agent can be collected there.
- the slope portion 62a of the cover member 62 is formed so as to incline to one side, but the slope portion 62a may be inclined in a plurality of directions, and the air nozzle 63 is provided at a location suitable for allowing the powder compounding agent to flow down along the slope portion 62a in the internal pressure cover 45.
- the exhaust hole 45c is connected to the slope portion.
- Means for facilitating the recovery of the powder compounding agent can be taken, such as being configured to be positioned on the downstream side of 62a.
- the powder compound deposited on the slope portion 62 a of the cover member 62 is collected in the peripheral portion of the pressure lid 5 by the air blow from the air nozzle 63.
- the pressure lid 5 The mechanism for raising the pressure constitutes a recovery mechanism for recovering the powder compounding agent around the pressure lid.
- the powder mixture recovered in the kneading tank 3 by the recovery mechanism is easily sucked into the kneading tank 3 by the pressure lid 5 itself or by the cover member 62.
- a space can be provided for temporary storage.
- an external dust collector is provided in addition to the collecting device 50.
- the dust collector raises the internal pressure cover 45 and the pressure lid 5 and charges the upper surface of the kneading tank 3.
- the air in the inner space of the dustproof cover 48 installed outside the inner pressure cover 45 is sucked in order to prevent the powder compounding agent from diffusing dust. Is to be installed for the main purpose.
- the operation of the above closed pressure type kneader will be described.
- the three sides of the charging opening 4 of the kneading tank 3 are surrounded by the dustproof cover 48 with the charging opening 4 facing upward.
- the pressure lid 5 and the internal pressure cover 45 are raised to the uppermost position shown in FIG. 5, and the powder compounding agent is put into the kneading tank 3 together with a high viscosity kneading material such as rubber and plastic.
- the top of the kneading rotor 10 of the kneading tank 3 constitutes a hopper that accommodates the compounded material, and the hopper is surrounded by the opening wall 8 at the upper periphery thereof.
- the internal pressure cover 45 is lowered to the lower limit position by driving an elevating mechanism 46 composed of a fluid pressure cylinder.
- the pressure lid 5 is lowered to the intermediate stop position by driving the fluid pressure cylinder device 14.
- the entry volume of the pressure lid 5 is replaced with the air in the kneading tank 3 as it enters the opening wall 8 of the charging opening 4.
- a part of the air in the tank 3 is pushed out to the inner pressure cover 45 side through a gap around the pressure lid 5, and at that time, naturally, the powder compounding agent has a high concentration toward the inner pressure cover 45 side along with the moving air.
- a rapid jet-in occurs, a closed space is formed in the kneading tank 3 and the inner pressure cover 45, so that the powder compounding agent that is diffusing and floating in the moving air is on the upper surface side and the periphery of the pressure lid 5 It will be deposited in etc.
- This air movement is only air movement between the internal pressure cover 45 and the mixing tank 3, and there is no change in the pressure in the kneading tank 3 and the internal pressure cover 45. Therefore, even if the powder compounding agent flows into the inner pressure cover 45 side accompanying the moving air, it does not flow out from the inner pressure cover 45 that is atmospheric pressure.
- the powder compounding agent captured by the filter 51 is collected in the kneading tank 3 through the inside of the internal pressure cover 45.
- the damper in the exhaust duct nozzle 59 connected to the ventilation chamber 58 in the collecting device 50 is closed, and pulsed air is blown from the pressurized air nozzle 60 for dust removal into the filter 51 at a stroke, and is captured outside the filter. Remove the powder formulation.
- the powder mixture that has been removed falls and flows into the internal pressure cover 45 through the duct 53, and eventually settles and accumulates on the slope portion 62a of the upper surface of the cover member 62 on the pressure lid 5, so that the internal pressure
- the air blow from the air nozzle 63 provided in the upper part in the cover 45 can flow down to the peripheral part of the pressure lid 5 and collect it there.
- the powder mixture collected in the periphery of the pressure lid 5 becomes negative pressure in the kneading tank 3 and at the same time the air in the internal pressure cover 45 is compressed. Since an air flow toward the kneading tank 3 is generated around the area 5, the air flows along the air flow into the kneading tank 3 and is collected and kneaded into the kneaded material being kneaded. The air blow from the air nozzle 63 in the internal pressure cover 45 may be performed at this time.
- the operation of discharging the kneaded material from the kneading tank 3 by the kneader described above is performed by opening the dust-proof cover 48 arranged on the front side of the charging opening 4 in the frame 2 and the internal pressure cover 45 on the kneading tank 3 that has been kneaded. Then, the pressure lid 5 is sequentially raised, and after the pressure lid 5 reaches the upper limit, the kneading tank 3 is reversely tilted forward by the hydraulic cylinder 18 while the two kneading rotors 10 are rotated at low speed to the counter meshing side. At the same time, the opening of the front wall 8a by the drive cylinder 30 is started.
- the front wall 8a is opened to the drooping position shown in FIG. 5 or FIG. 6, and when the kneading rotor 10 is rotated forward and backward in this state, Even if there is no operator's discharge assistance work, it is discharged out of the tank.
- the trace of the powder compounding agent and the adhesion of the powder compounding agent also to the filter and the inner surface of the duct leading to the dust collector It was not observed, and it was confirmed that almost 100% of the added powder compounding agent was kneaded.
- the recovery rate of the powder compounding agent can be judged by comparing the total weight of the added powder compounding agent and the weight of the kneaded product. However, since the kneading temperature reaches 130 to 150 ° C. during kneading, there are volatile components and water evaporation. A weight loss of about 0.3% was observed.
- the kneading tank 3 is inverted up to 90 ° and kneaded. It has been confirmed that even when the two kneading rotors 10 in the tank 3 are in a vertical arrangement, the kneaded material can be easily scraped out of the kneading tank 3 by the rotation of the kneading rotor 10 and directly dropped out of the tank. Even when discharging the kneaded material having viscosity, the discharging speed could be increased by increasing the inversion angle to, for example, about 100 ° to 110 °.
- the kneading machine of the present invention described above can bring the low productivity that was a weak point of the light structure type kneading tank reversal discharge type kneader to the capacity of the heavy structure type kneading tank bottom open type discharge kneader.
- nearly 100% of the charged powder formulation is recovered in the product compared to the dust-proof method that prevents the powder formulation from diffusing by the suction of the scattered powder formulation using a conventional external dust collector. It is possible to secure design quality, recover valuable resources, and significantly reduce waste.
- the kneaders of Patent Nos. 3129966 and No. 4,198,665 previously developed by the present inventor have excellent energy saving performance, but by applying the above-mentioned patented technology to the present invention, It is possible to provide a high-function closed kneader that can make a great contribution to the rubber and plastics industry in the carbon era.
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Abstract
Description
本発明は、上記混練槽反転排出式で密閉加圧型の混練機に関するものである。
本発明の他の技術的課題は、上記(2)の問題点を解決し、投入した粉末配合剤を収容する混練槽からの粉末配合剤の噴出は抑止できないが、それを各バッチ毎に可及的に正確且つ能率的に回収できるようにした混練槽反転排出式密閉加圧型混練機を提供することにある。
この構成を更に具体的に説明すると、本発明にかかる混練槽反転排出式密閉加圧型混練機は、開閉自在の加圧蓋によって上面の仕込開口部を閉鎖可能にした混練槽と、該混練槽内に軸支され回転用の軸が駆動源に接続されている2本の平行する混練ローターと、該混練槽を混練物の排出のために一方の混練ローターの軸線の周りにおいて反転させる混練槽反転機構とを有し、上記混練槽が上部の仕込開口部の四周を囲む開口部壁を有していて、上記加圧蓋の周辺がその開口部壁の内面に沿って昇降するように構成された混練機において、上記開口部壁における混練槽の反転側に位置する前面壁を他の側に位置する開口部壁とは別体として、該前面壁の下端が混練槽にヒンジにより回転可能に取り付けられ、上記混練槽には、その仕込開口部が上方を向く位置から90~120°の範囲で反転させる混練槽反転機構が設けられ、上記混練槽には、混練槽反転機構による混練槽の反転時に上記前面壁を混練槽から下方に垂下させる駆動機構を設けることにより構成される。
なお、上記ダクト53は、前記昇降機構46による内圧カバー45の駆動方向に立設して、支持フレーム2の天板2aにおけるシールリング2bを摺動自在に貫通させたものである。
上記加圧蓋5の周辺部においては、加圧蓋5自体に、あるいはカバー部材62に、上記回収機構によって混練槽3に回収される粉末配合剤が容易に混練槽3に吸入される態様で一時的に収容される空所を設けておくことができる。
上記密閉加圧型混練機において、混練槽3へ配合材料等を仕込むときには、その仕込開口部4を上方に向けた状態で、防塵カバー48により混練槽3の仕込開口部4の3方面を囲い、加圧蓋5及び内圧カバー45を図5に示す最上位まで上昇させて、混練槽3へゴム・プラスチック等の高粘度混練材料と共に粉末配合剤を投入する。この状態では、混練槽3の混練ローター10から上は配合材料を収容するホッパー部を構成し、該ホッパー部は、その上部周囲を前記開口部壁8により囲まれている。
このようにして、混練槽3から噴出する粉末配合剤のほぼ全量を捕集装置50のフィルター51で捕捉させて混練槽3内に回収し、同一バッチへ練り込むことは、正確な配合処方通りの品質の混練物を製造するためにきわめて有効であり、品質の信頼性を高め、材料の有価回収による資源節減と、ダスト廃棄物の低減にも有効である。
3 混練槽
3a 部分円筒
4 仕込開口部
5 加圧蓋
8 開口部壁
8a 前面壁
10 混練ローター
11 軸
13 端板
14 流体圧シリンダー装置
15 ピストンロッド
26 ヒンジ
27 支持軸
28 軸受
29 アーム
30 駆動シリンダー
31 ピストンロッド
32 ピン
35 クランプ
45 内圧カバー
45b 天板
45c 排気孔
46 昇降機構
48 防塵カバー
48a 防塵カバー昇降アーム
50 捕集装置
51 フィルター
53 ダクト
60 加圧空気ノズル
62 カバー部材
62a スロープ部
63 空気ノズル
A 混練物
Claims (7)
- 開閉自在の加圧蓋によって上面の仕込開口部を閉鎖可能にした混練槽内に回転する2本の平行する混練ローターを備え、該混練槽を混練物の排出のために一方の混練ローターの軸線の周りにおいて反転可能にした高粘度混練材料の混練機において、
上記混練槽の上部の仕込開口部の四周を囲むように、上記加圧蓋の周辺がその内面に沿って昇降する開口部壁を設け、該開口部壁における混練槽の反転側に位置する前面壁を他側に位置する開口部壁とは別体にして、該混練槽の上記反転時に該前面壁が混練槽から下方に垂下するように、該前面壁の下端を混練槽にヒンジにより回転可能に取り付け、
上記混練槽を、仕込開口部が上方を向く位置から90~120°の範囲で反転可能としている、
ことを特徴とする混練槽反転排出式密閉加圧型混練機。 - 上記混練槽が、2本のC型をなす部分円筒を水平に対向配置して連接することにより構成され、該混練槽の上記2本の部分円筒内にそれぞれ混練ローターを配設し、両混練ローターの軸を、上記部分円筒の両端に連結されている一対の端板に軸支させて、それらを回転駆動する駆動源に接続している、
ことを特徴とする請求項1に記載の混練槽反転排出式密閉加圧型混練機。 - 上記開口部壁の前面壁の両側端に、隣接開口部壁を形成する混練槽の端板の前縁に係脱するクランプを備え、
上記端板に支持させた駆動機構により、上記開口部壁の前面壁の下端に設けて上記ヒンジを構成する支持軸を回動可能として、上記前面壁を、上記クランプを上記端板の前縁に係合させて混練槽の仕込開口部を囲む混練位置と、上記クランプの係合を解除して混練槽の上記反転による混練物の排出のために下方に垂下する混練物排出位置とに変移可能にした、
ことを特徴とする請求項2に記載の混練槽反転排出式密閉加圧型混練機。 - 上記前面壁の下端に設けて上記ヒンジを構成する支持軸を、上記端板に設けた軸受によって回転自在に支持させ、端板の軸受を通して外部に突出する支持軸の外端に、該支持軸の軸線方向と直交する方向に突出するアームを連結し、該アームの先端と上記端板に支持させた駆動機構を構成する駆動シリンダーのピストンロッドの先端とをピンにより回転自在に連結し、
上記駆動シリンダーにより、上記前面壁を、仕込開口部を囲む混練位置と混練物の排出のための混練物排出位置とに変移可能にした、
ことを特徴とする請求項3に記載の混練槽反転排出式密閉加圧型混練機。 - 上記仕込開口部の上面を開閉する加圧蓋と共に上記混練槽の仕込開口部を覆い、昇降機構で混練槽の開口部壁周縁に圧接することにより該混練槽の仕込開口部を封止する内圧カバーを設けて、該内圧カバーに、加圧蓋を昇降駆動する支持フレーム上の流体圧シリンダー装置におけるピストンロッドを気密且つ摺動自在に貫通させ、
該内圧カバーの内部空間は、該内圧カバーが混練槽の開口部壁周縁に圧接した状態において、少なくとも加圧蓋が開口部壁の上端部に達する中間停止位置まで上動可能なものとし、
それにより、上記内圧カバーが混練槽の開口部壁周縁に圧接した状態において、上記加圧蓋を上記中間停止位置から下降させた際に、混練槽内から該加圧蓋の周辺を通して粉末配合剤を同伴して内圧カバー内に噴出する置換空気を、該粉末配合剤と共に内圧カバー内に留める配合剤封止機構を構成させ、
上記内圧カバーと加圧蓋との間の空間に堆積した粉末配合剤をエアブローで加圧蓋周辺部に収集して、混練槽の加圧蓋の上昇による加圧蓋下方の該混練槽内の負圧化に伴って収集した粉末配合剤を混練中の混練槽内に吸引回収する回収機構を構成させた、
ことを特徴とする請求項1~4のいずれかに記載の混練槽反転排出式密閉加圧型混練機。 - 上記内圧カバーの天板に設けた排気孔に、該混練槽内の昇圧時に排出される空気に同伴して内圧カバー内に噴出する粉末配合剤を捕集するためのフィルターを内蔵した捕集装置のダクトを連結して、該内圧カバー内を上記捕集装置におけるフィルターを通して大気に連通させ、
上記ダクトを前記昇降機構による内圧カバーの駆動方向に立設して、支持フレームの天板を摺動自在に貫通させ、
上記捕集装置には、上記フィルターに捕集された粉末配合剤を該捕集とは逆方向の空気流によりフィルターから払い落とし、上記ダクトを通して内圧カバー内に戻す加圧空気ノズルを設けた、
ことを特徴とする請求項5に記載の混練槽反転排出式密閉加圧型混練機。 - 上記内圧カバー内に堆積した粉末配合剤をエアブローで加圧蓋周辺部に収集するための手段として、上記加圧蓋にその上面をカバーするカバー部材を付設して、該カバー部材の上面をスロープ部とし、上記内圧カバーに、該スロープ部上に堆積した粉末配合剤をスロープ部の下流側に吹き落とす空気ノズルを設けた、
ことを特徴とする請求項5または6に記載の混練槽反転排出式密閉加圧型混練機。
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EP10789389.3A EP2444217B1 (en) | 2009-06-19 | 2010-06-07 | Kneading tank inversion discharging sealed pressurized type kneading machine |
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- 2010-06-07 CN CN201080010772.3A patent/CN102341223B/zh active Active
- 2010-06-07 PL PL10789389T patent/PL2444217T3/pl unknown
- 2010-06-07 KR KR1020117024949A patent/KR101282175B1/ko active IP Right Grant
- 2010-06-07 EP EP10789389.3A patent/EP2444217B1/en active Active
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KR20140090664A (ko) * | 2011-11-17 | 2014-07-17 | 수주카 엔지니어링 가부시키가이샤 | 밀폐 가압형 혼련기의 분말 배합제 회수 장치 및 그 회수 방법 |
CN103958040A (zh) * | 2011-11-17 | 2014-07-30 | 铃鹿工程株式会社 | 密闭加压型搅拌机的粉末配合剂回收装置及其回收方法 |
EP2781255A1 (en) * | 2011-11-17 | 2014-09-24 | Suzuka Engineering Co., Ltd | Powder compound agent collection device for sealed pressurized-type kneading machine, and collection method therefor |
EP2781255A4 (en) * | 2011-11-17 | 2014-12-10 | Suzuka Engineering Co Ltd | DEVICE FOR RECOVERING PULVERULATE COMPOUND AGENT FOR PRESSURE-SENSITIVE MIXING MACHINE AND RECOVERY METHOD THEREOF |
KR101660780B1 (ko) * | 2011-11-17 | 2016-09-28 | 수주카 엔지니어링 가부시키가이샤 | 밀폐 가압형 혼련기의 분말 배합제 회수 장치 및 그 회수 방법 |
US9522484B2 (en) | 2011-11-17 | 2016-12-20 | Suzuka Engineering Co., Ltd. | Powder compound agent collection device for seal pressurized-type kneading machine, and collection method therefor |
CN103862577A (zh) * | 2014-03-27 | 2014-06-18 | 山推建友机械股份有限公司 | 可旋转伸缩式搅拌车出料溜槽 |
CN112354393A (zh) * | 2020-11-06 | 2021-02-12 | 池秋勇 | 一种涂料配料系统 |
CN112847874A (zh) * | 2020-12-17 | 2021-05-28 | 华南理工大学 | 一种用于密炼机的内嵌定子铰链式结构开合装置 |
Also Published As
Publication number | Publication date |
---|---|
TWI444276B (zh) | 2014-07-11 |
EP2444217B1 (en) | 2014-07-30 |
KR101282175B1 (ko) | 2013-07-04 |
PL2444217T3 (pl) | 2015-01-30 |
JP2011000552A (ja) | 2011-01-06 |
US20120087202A1 (en) | 2012-04-12 |
EP2444217A1 (en) | 2012-04-25 |
JP5268795B2 (ja) | 2013-08-21 |
TW201114573A (en) | 2011-05-01 |
KR20120022807A (ko) | 2012-03-12 |
CN102341223B (zh) | 2015-04-22 |
EP2444217A4 (en) | 2013-06-05 |
CN102341223A (zh) | 2012-02-01 |
US8764274B2 (en) | 2014-07-01 |
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