CA2607390A1 - A robor for an injection molding system - Google Patents
A robor for an injection molding system Download PDFInfo
- Publication number
- CA2607390A1 CA2607390A1 CA 2607390 CA2607390A CA2607390A1 CA 2607390 A1 CA2607390 A1 CA 2607390A1 CA 2607390 CA2607390 CA 2607390 CA 2607390 A CA2607390 A CA 2607390A CA 2607390 A1 CA2607390 A1 CA 2607390A1
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- CA
- Canada
- Prior art keywords
- screw
- prefabricated
- melt
- actuator
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
- B29C2045/5024—Drive means therefor screws rotated by the coaxial rotor of an electric motor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
- B29C2045/5064—Drive means therefor coupling means between rotation motor and rectilinear drive motor
Abstract
What is disclosed is an injector unit (100) including a screw-drive unit (101). The screw-drive unit (101) has (i) a prefabricated screw-rotation actuator (102A) that is selected from a group (104) that has prefabricated screw-rotation actuators (102A; 102B; 102C). The screw-drive unit (101) also includes a prefabricated screw-translation actuator (106A) that is selected from a collection (108) that has prefabricated screw-translation actuators (106A; 106B; 106C). The prefabricated screw--translation actuators (106A; 106B; 106C) are cooperative with at least one
Description
INJECTOR UNIT OF INJECTION-MOLDING SYSTEM
TECHNICAL FIELD
The present invention generally relates to, but is not limited to, molding systems, and more specifically the present invention relates to, but is not limited to, (i) an injector unit, (ii) an injection-molding system having an injector unit.
BACKGROUND OF THE INVENTION
Examples of known molding systems are (amongst others): (i) the HyPET
(trademark) Molding System, (ii) the Quadloc (trademark) Molding System, (iii) the Hylectric (trademark) Molding System, and (iv) the HyMET (trademark) Molding System, all manufactured by Husky Injection Molding Systems (Location: Canada; www.husky.ca).
HUSKYS's 180 to 825 Ton Machines sales brochure dated May 1994 from page 1 to 3) explains the "Moduline" approach to assembling injection molding machines (including injection units) from a variety of alternate prefabricated sub-assemblies.
United States Patent Number 4,615,669 (Inventor: FUJITA et al; Published: 1986-10-07) discloses an injection apparatus of an injection molding machine that includes a heating cylinder and a screw disposed in the heating cylinder, and the screw is axially moved and rotated in the heating cylinder for plasticizing the molten material by mechanisms or devices assembled in the injection apparatus, which is driven by electric drive means through driving power transmission means. The electric drive means comprises two servomotors and the power transmission means comprises two power transmission mechanisms operatively connected to the servomotors respectively so that one of the two servomotors drives a mechanism for axially moving the screw through one of the two power transmission mechanisms and the other of the two servomotors drives a mechanism for rotating the screw through the other of the two power transmission mechanisms, parallelly or concurrently.
United States Patent Number 5,417,558 (Inventor: HEINDEL et al.; Published 1995-05-23) discloses an injection molding unit for injection molding machines, which includes a first subassembly having a plasticizing unit including a screw cylinder and a screw, a second subassembly having a metering drive to rotate the screw of the plasticizing unit, a third subassembly having two drives with substantially parallel axes for providing motion of the screw cylinder relative to an injection mold, and a fourth subassembly having two drives with substantially parallel axes for producing actual displacement of the screw in the screw cylinder of the plasticizing unit, with the plasticizing unit being located substantially centrally between the two parallel axes of the third and fourth subassembly drives. The two drives of said fourth subassembly include two liquid-cooled electric servomotors, respectively, electrically connected to one another to operate synchronously.
United States Patent Number 5,645,873 (Inventor: CARTER; Published: 1997-07-08) discloses an accumulator head for a blow molding machine uses an electromechanical drive assembly for the purging and programming functions. The purging actuator of the drive assembly includes a ball screw and nut assembly in which the ball screw is rotated by an electric motor to move the ball nut assembly vertically and operate the plunger of the accumulator. A second ball screw and nut assembly is included in the programming actuator of the drive assembly for moving the mandrel vertically, thereby controlling the size of the die outlet opening of the accumulator. Preferably, the ball screws of the programming and purging actuators are axially aligned with the nut assemblies each carried by a yoke that travels on guide rods. Four support rods are provided to maintain alignment and provide stationary mounting for the respective motors. The structure has sufficient rigidity to supply the force required for the purging operation, but uses no hydraulic actuators.
United States Patent Number 5,968,563 (Inventor: HEHL; Published: 1999-10-19) discloses injection molding unit for a plastics injection-molding machine for processing plastifiable materials, which includes a plasticizing unit for supplying plastifiable material to a mold via a nozzle along an injection axis. The plasticizing unit receives a feeding mechanism and the plasticizing unit is detachably received in a carrier block. The feeding mechanism is mounted at an injection bridge which is movable toward and away from the carrier block for movement of the feeding mechanism relative to the plasticizing unit. A plurality of electromechanical drive units are arranged symmetrically to the injection axis for displacement of the injection molding unit along the injection axis for attachment of the nozzle to the mold. A plurality of electromechanical injection units are arranged symmetrically to the injection axis for movement of the injection bridge relative to the carrier block. The carrier block and injection bridge are displaceable along linear guiding elements.
The linear guiding elements are arranged symmetrically to the injection axis and the drive units, the injection units and the linear guiding elements lie in different planes each of which include the injection axis.
United States Patent Number 5,974,948 (Inventor: THOMPSON et al.; Published:
1999-11-02) discloses a piston and cylinder assembly for use in actuating a locating pin for sheet metal, which provides stability for a pin mounted thereon against side to side movement and rotation. To this end the assembly includes a cylinder body assembly with an internal bore and a piston axially slidable within the bore. A piston rod is connected with the piston, and the rod has a free end for connection of a sheet metal locating pin. A first guide surface is formed within the cylinder body assembly and a second guide surface is formed on one of the piston and piston rod, the first and second guide surfaces cooperating to prevent rotation of the piston and piston rod as the piston and piston rod slide axially with respect to the cylinder body assembly. The first and second guide surfaces preferably are internal and external splines. First and second bearings are connected to the cylinder body assembly and support the piston rod for straight line movement. The first and second bearings being located on opposite sides of the piston. One of the bearings may be the splines.
United States Patent Number 6,068,810 (Inventor: KESTLE et al.; Published:
2000-05-30) discloses a plasticizing unit having a plasticizing screw, an injection piston connected to the screw, a quill connected to the piston, and hydraulic cavity formed by the piston and a quill end face. Hydraulic fluid is transferred to the hydraulic cavity to move the piston and screw away from the quill. The screw and piston are subsequently moved towards the quill to displace hydraulic fluid out of the hydraulic cavity and cause back pressure. The back pressure is counteracted by acting on the back of the quill.
United States Patent Number 6,136,246 (Inventor: RAUWENDAAL et al.; Published:
2000-10-24) discloses a screw extruder having a barrel which has a bore defining an inner surface and one or more extruder screws, positioned within the bore. The extruder screw or screws include a central shaft and one or more screw flights. The extruder screw or screws further including one or more dispersive mixing elements, which interact with the inner surface of the barrel to form one or more progressively narrowing passages through which material is. forced into multiple regions of high elongational and shear stress. A second preferred embodiment is a screw extruder having a barrel having a bore defining an inner surface and one or more extruder screws, positioned within the bore. The extruder screw or screws include a central shaft and a number of dispersive mixing elements, which are configured and positioned to form a number of progressively narrowing passages through which material is forced into multiple regions of high elongational and shear stress.
United States Patent Number 6,241,504 (Inventor: FRECHINGER; Published: 2001-06-05) discloses an injection unit for an injection molding machine, with a housing carrying a plasticizing cylinder and with a transverse support arranged movably in the housing, which support is connected to a plasticizing screw mounted in a rotatable and longitudinally displaceable manner in the plasticizing cylinder, wherein piston rods projecting on both sides in the longitudinal direction of the injection unit are connected to the transverse member, the free ends of which each enter into a cylinder chamber in the manner of plungers.
TECHNICAL FIELD
The present invention generally relates to, but is not limited to, molding systems, and more specifically the present invention relates to, but is not limited to, (i) an injector unit, (ii) an injection-molding system having an injector unit.
BACKGROUND OF THE INVENTION
Examples of known molding systems are (amongst others): (i) the HyPET
(trademark) Molding System, (ii) the Quadloc (trademark) Molding System, (iii) the Hylectric (trademark) Molding System, and (iv) the HyMET (trademark) Molding System, all manufactured by Husky Injection Molding Systems (Location: Canada; www.husky.ca).
HUSKYS's 180 to 825 Ton Machines sales brochure dated May 1994 from page 1 to 3) explains the "Moduline" approach to assembling injection molding machines (including injection units) from a variety of alternate prefabricated sub-assemblies.
United States Patent Number 4,615,669 (Inventor: FUJITA et al; Published: 1986-10-07) discloses an injection apparatus of an injection molding machine that includes a heating cylinder and a screw disposed in the heating cylinder, and the screw is axially moved and rotated in the heating cylinder for plasticizing the molten material by mechanisms or devices assembled in the injection apparatus, which is driven by electric drive means through driving power transmission means. The electric drive means comprises two servomotors and the power transmission means comprises two power transmission mechanisms operatively connected to the servomotors respectively so that one of the two servomotors drives a mechanism for axially moving the screw through one of the two power transmission mechanisms and the other of the two servomotors drives a mechanism for rotating the screw through the other of the two power transmission mechanisms, parallelly or concurrently.
United States Patent Number 5,417,558 (Inventor: HEINDEL et al.; Published 1995-05-23) discloses an injection molding unit for injection molding machines, which includes a first subassembly having a plasticizing unit including a screw cylinder and a screw, a second subassembly having a metering drive to rotate the screw of the plasticizing unit, a third subassembly having two drives with substantially parallel axes for providing motion of the screw cylinder relative to an injection mold, and a fourth subassembly having two drives with substantially parallel axes for producing actual displacement of the screw in the screw cylinder of the plasticizing unit, with the plasticizing unit being located substantially centrally between the two parallel axes of the third and fourth subassembly drives. The two drives of said fourth subassembly include two liquid-cooled electric servomotors, respectively, electrically connected to one another to operate synchronously.
United States Patent Number 5,645,873 (Inventor: CARTER; Published: 1997-07-08) discloses an accumulator head for a blow molding machine uses an electromechanical drive assembly for the purging and programming functions. The purging actuator of the drive assembly includes a ball screw and nut assembly in which the ball screw is rotated by an electric motor to move the ball nut assembly vertically and operate the plunger of the accumulator. A second ball screw and nut assembly is included in the programming actuator of the drive assembly for moving the mandrel vertically, thereby controlling the size of the die outlet opening of the accumulator. Preferably, the ball screws of the programming and purging actuators are axially aligned with the nut assemblies each carried by a yoke that travels on guide rods. Four support rods are provided to maintain alignment and provide stationary mounting for the respective motors. The structure has sufficient rigidity to supply the force required for the purging operation, but uses no hydraulic actuators.
United States Patent Number 5,968,563 (Inventor: HEHL; Published: 1999-10-19) discloses injection molding unit for a plastics injection-molding machine for processing plastifiable materials, which includes a plasticizing unit for supplying plastifiable material to a mold via a nozzle along an injection axis. The plasticizing unit receives a feeding mechanism and the plasticizing unit is detachably received in a carrier block. The feeding mechanism is mounted at an injection bridge which is movable toward and away from the carrier block for movement of the feeding mechanism relative to the plasticizing unit. A plurality of electromechanical drive units are arranged symmetrically to the injection axis for displacement of the injection molding unit along the injection axis for attachment of the nozzle to the mold. A plurality of electromechanical injection units are arranged symmetrically to the injection axis for movement of the injection bridge relative to the carrier block. The carrier block and injection bridge are displaceable along linear guiding elements.
The linear guiding elements are arranged symmetrically to the injection axis and the drive units, the injection units and the linear guiding elements lie in different planes each of which include the injection axis.
United States Patent Number 5,974,948 (Inventor: THOMPSON et al.; Published:
1999-11-02) discloses a piston and cylinder assembly for use in actuating a locating pin for sheet metal, which provides stability for a pin mounted thereon against side to side movement and rotation. To this end the assembly includes a cylinder body assembly with an internal bore and a piston axially slidable within the bore. A piston rod is connected with the piston, and the rod has a free end for connection of a sheet metal locating pin. A first guide surface is formed within the cylinder body assembly and a second guide surface is formed on one of the piston and piston rod, the first and second guide surfaces cooperating to prevent rotation of the piston and piston rod as the piston and piston rod slide axially with respect to the cylinder body assembly. The first and second guide surfaces preferably are internal and external splines. First and second bearings are connected to the cylinder body assembly and support the piston rod for straight line movement. The first and second bearings being located on opposite sides of the piston. One of the bearings may be the splines.
United States Patent Number 6,068,810 (Inventor: KESTLE et al.; Published:
2000-05-30) discloses a plasticizing unit having a plasticizing screw, an injection piston connected to the screw, a quill connected to the piston, and hydraulic cavity formed by the piston and a quill end face. Hydraulic fluid is transferred to the hydraulic cavity to move the piston and screw away from the quill. The screw and piston are subsequently moved towards the quill to displace hydraulic fluid out of the hydraulic cavity and cause back pressure. The back pressure is counteracted by acting on the back of the quill.
United States Patent Number 6,136,246 (Inventor: RAUWENDAAL et al.; Published:
2000-10-24) discloses a screw extruder having a barrel which has a bore defining an inner surface and one or more extruder screws, positioned within the bore. The extruder screw or screws include a central shaft and one or more screw flights. The extruder screw or screws further including one or more dispersive mixing elements, which interact with the inner surface of the barrel to form one or more progressively narrowing passages through which material is. forced into multiple regions of high elongational and shear stress. A second preferred embodiment is a screw extruder having a barrel having a bore defining an inner surface and one or more extruder screws, positioned within the bore. The extruder screw or screws include a central shaft and a number of dispersive mixing elements, which are configured and positioned to form a number of progressively narrowing passages through which material is forced into multiple regions of high elongational and shear stress.
United States Patent Number 6,241,504 (Inventor: FRECHINGER; Published: 2001-06-05) discloses an injection unit for an injection molding machine, with a housing carrying a plasticizing cylinder and with a transverse support arranged movably in the housing, which support is connected to a plasticizing screw mounted in a rotatable and longitudinally displaceable manner in the plasticizing cylinder, wherein piston rods projecting on both sides in the longitudinal direction of the injection unit are connected to the transverse member, the free ends of which each enter into a cylinder chamber in the manner of plungers.
United States Patent Number 6,394,780 (Inventor: HEHL; Published: 2002-05-28) discloses an injection molding unit for an injection molding machine, which includes two electric drives provided as electromechanical injection unit and electromechanical dosing unit, the axis of which are aligned with the axis of injection. A compact injection molding unit that is easy to assemble and maintain is achieved due to the fact that the first and second electric drives are disposed on the injection bridge on both sides of a separating plane that extends substantially crosswise to the axis of injection and separates the area of influence of the first electric drive from the area of influence of the second electric drive.
United States Patent Number 6,517,335 (Inventor: LONG et al; Published: 2003-02-11) discloses an apparatus for dewatering a slurry of elastomeric polymer and water, using an extruder or extruders provided with a device for measuring an actual water content of the elastomer at a position within the extruder or extruders, and a control system for controlling the moisture content of elastomeric polymer exiting the extruder or extruders through an exit die based, at least in part, on the measured water content.
United States Patent Number 6,835,057 (Inventor: KNAUFF et al; Published: 2004-12-28) discloses an injection unit for an injection-molding machine for processing thermoplastic material is designed in such a way that a direct drive which meets high dynamic requirements is used for the injection operation and that a standard motor, the rotational speed of which is optimized to the material preparation process by a gear mechanism, is used for the material preparation, in which such dynamic requirements do not exist.
United States Patent Application Number 2005/0048162 (Inventor: TENG et al.;
Published: 2005-03-03) discloses a drive assembly for rotating and translating a shaft comprising a hollow shaft motor and a fluid cylinder. The hollow shaft motor rotates the shaft and the fluid cylinder moves the shaft lengthwise. The drive is particularly useful in the injection unit of an injection-molding machine. In one preferred embodiment the injection unit includes a hollow electric motor and a hydraulic cylinder. A first cylinder wall of the hydraulic cylinder is joined to a rotor of the hollow motor. A
second cylinder wall of the cylinder is connected to a stationary portion of the hollow motor. A piston has two end portions. One end portion of the piston engages the first cylinder wall and the other end portion of the piston engages the second cylinder wall. Means for rotating the piston are attached to the rotor. The means for rotating also permits the piston end portions to slide along the cylinder walls.
One channel means provides hydraulic fluid to drive the piston in a forward direction and another channel means provides hydraulic fluid to drive the piston in a reverse direction. Means are provided for attaching an injection screw to the piston. In the preferred arrangement, the cylinder is at least partially situated within the hollow motor.
United States Patent Number 7,033,158 (Inventor: BECKER et al.; Published:
2006-04-25) discloses an injection screw that is rotationally driven by a rotating motor having a stator and a rotor and can be moved by a number of electrical linear motors, linear motor comprising a primary part, which functions as a stator, and a secondary part, which is linearly movable in the axial direction in a screw cylinder to execute the injection function. The primary parts are assembled to form a first housing-like unit and the secondary parts are assembled to form a second housing-like unit which is coupled to the screw for drive purposes. The rotating motor, fixedly connected to the screw in the axial direction, is arranged with its stator fixedly coupled in the axial direction to the secondary housing-like unit.
United States Patent Application Number 2006/0134264 (Inventor: HAHN;
Published: 2006-06-22) discloses a screw for injection molding that provides a coaxial piston that allows an effective cross-sectional area of the screw to be varied during an injection cycle, which permits small shot metering with relatively large diameter injection molding screws.
United States Patent Application Number 2007/0069425 (Inventor: KLAUS;
Published: 2007-03-29) discloses an apparatus for injection molding that includes an injection unit having a plunger. The plunger is translated with accumulation of plasticized material in preparation for injection and is advanced to inject the accumulated plasticized material into mold cavities. At least one electric motor is engaged with the plunger to resist translation as melt is accumulated and to inject plasticized material into the mold cavities. At least one hydraulic actuator selectably operates the plunger during a pack and hold interval to supply supplemental force when force supplied by the electric motors is limited to maintain the operation of the motors within the applicable continuous duty rating thereof.
The electric motors are advantageously selectably operatively engaged with the plunger to inject plasticized material into the mold cavities and the hydraulic actuators are operated to inject plasticized material into the mold cavities when the motors are not engaged.
SUMMARY OF THE INVENTION
According to a first aspect of the present invention, there is provided an injector unit (100) including a screw-drive unit (101). The screw-drive unit (101) has (i) a prefabricated screw-rotation actuator (102A) that is selected from a group (104) that has prefabricated screw-rotation actuators (102A;
102B; 102C). The screw-drive unit (101) also includes a prefabricated screw-translation actuator (106A) that is selected from a collection (108) that has prefabricated screw-translation actuators (106A; 106B; 106C). The prefabricated screw-translation actuators (106A; 106B;
106C) are cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
According to a second aspect of the present invention, there is provided an injection-molding system having an injector unit (100) including a screw-drive unit (101). The screw-drive unit (101) has (i) a prefabricated screw-rotation actuator (102A) that is selected from a group (104) that has prefabricated screw-rotation actuators (102A; 102B; 102C). The screw-drive unit (101) also includes a prefabricated screw-translation actuator (106A) that is selected from a collection (108) that has prefabricated screw-translation actuators (106A; 106B; 106C). The prefabricated screw-translation actuators (106A; 106B; 106C) are cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
A technical effect, amongst other technical effects, of the aspects of the present invention is improved cost-effectiveness associated with manufacturing injection units associated with injection-molding systems.
BRIEF DESCRIPTION OF THE DRAWINGS
A better understanding of the non-limiting embodiments of the present invention (including alternatives and/or variations thereof) may be obtained with reference to the detailed description of the non-limiting embodiments along with the following drawings, in which:
FIGS. IA and 1B depict schematic representations of an injector unit according to a first non-limiting embodiment;
FIG. 2 depicts a schematic representation of the injector unit 100 according to a second non-limiting embodiment;
FIG. 3 depicts a schematic representation of the injector unit 100 according to a third non-limiting embodiment;
FIG. 4 depicts a schematic representation of the injector unit 100 according to a fourth non-limiting embodiment;
FIG. 5 depicts another schematic representation of the injector unit 100 according to the fourth non-limiting embodiment;
FIG. 6 depicts a schematic representation of the injector unit 100 according to a fifth non-limiting embodiment;
FIG. 7 depicts another schematic representation of the injector unit 100 according to the fifth non-limiting embodiment;
United States Patent Number 6,517,335 (Inventor: LONG et al; Published: 2003-02-11) discloses an apparatus for dewatering a slurry of elastomeric polymer and water, using an extruder or extruders provided with a device for measuring an actual water content of the elastomer at a position within the extruder or extruders, and a control system for controlling the moisture content of elastomeric polymer exiting the extruder or extruders through an exit die based, at least in part, on the measured water content.
United States Patent Number 6,835,057 (Inventor: KNAUFF et al; Published: 2004-12-28) discloses an injection unit for an injection-molding machine for processing thermoplastic material is designed in such a way that a direct drive which meets high dynamic requirements is used for the injection operation and that a standard motor, the rotational speed of which is optimized to the material preparation process by a gear mechanism, is used for the material preparation, in which such dynamic requirements do not exist.
United States Patent Application Number 2005/0048162 (Inventor: TENG et al.;
Published: 2005-03-03) discloses a drive assembly for rotating and translating a shaft comprising a hollow shaft motor and a fluid cylinder. The hollow shaft motor rotates the shaft and the fluid cylinder moves the shaft lengthwise. The drive is particularly useful in the injection unit of an injection-molding machine. In one preferred embodiment the injection unit includes a hollow electric motor and a hydraulic cylinder. A first cylinder wall of the hydraulic cylinder is joined to a rotor of the hollow motor. A
second cylinder wall of the cylinder is connected to a stationary portion of the hollow motor. A piston has two end portions. One end portion of the piston engages the first cylinder wall and the other end portion of the piston engages the second cylinder wall. Means for rotating the piston are attached to the rotor. The means for rotating also permits the piston end portions to slide along the cylinder walls.
One channel means provides hydraulic fluid to drive the piston in a forward direction and another channel means provides hydraulic fluid to drive the piston in a reverse direction. Means are provided for attaching an injection screw to the piston. In the preferred arrangement, the cylinder is at least partially situated within the hollow motor.
United States Patent Number 7,033,158 (Inventor: BECKER et al.; Published:
2006-04-25) discloses an injection screw that is rotationally driven by a rotating motor having a stator and a rotor and can be moved by a number of electrical linear motors, linear motor comprising a primary part, which functions as a stator, and a secondary part, which is linearly movable in the axial direction in a screw cylinder to execute the injection function. The primary parts are assembled to form a first housing-like unit and the secondary parts are assembled to form a second housing-like unit which is coupled to the screw for drive purposes. The rotating motor, fixedly connected to the screw in the axial direction, is arranged with its stator fixedly coupled in the axial direction to the secondary housing-like unit.
United States Patent Application Number 2006/0134264 (Inventor: HAHN;
Published: 2006-06-22) discloses a screw for injection molding that provides a coaxial piston that allows an effective cross-sectional area of the screw to be varied during an injection cycle, which permits small shot metering with relatively large diameter injection molding screws.
United States Patent Application Number 2007/0069425 (Inventor: KLAUS;
Published: 2007-03-29) discloses an apparatus for injection molding that includes an injection unit having a plunger. The plunger is translated with accumulation of plasticized material in preparation for injection and is advanced to inject the accumulated plasticized material into mold cavities. At least one electric motor is engaged with the plunger to resist translation as melt is accumulated and to inject plasticized material into the mold cavities. At least one hydraulic actuator selectably operates the plunger during a pack and hold interval to supply supplemental force when force supplied by the electric motors is limited to maintain the operation of the motors within the applicable continuous duty rating thereof.
The electric motors are advantageously selectably operatively engaged with the plunger to inject plasticized material into the mold cavities and the hydraulic actuators are operated to inject plasticized material into the mold cavities when the motors are not engaged.
SUMMARY OF THE INVENTION
According to a first aspect of the present invention, there is provided an injector unit (100) including a screw-drive unit (101). The screw-drive unit (101) has (i) a prefabricated screw-rotation actuator (102A) that is selected from a group (104) that has prefabricated screw-rotation actuators (102A;
102B; 102C). The screw-drive unit (101) also includes a prefabricated screw-translation actuator (106A) that is selected from a collection (108) that has prefabricated screw-translation actuators (106A; 106B; 106C). The prefabricated screw-translation actuators (106A; 106B;
106C) are cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
According to a second aspect of the present invention, there is provided an injection-molding system having an injector unit (100) including a screw-drive unit (101). The screw-drive unit (101) has (i) a prefabricated screw-rotation actuator (102A) that is selected from a group (104) that has prefabricated screw-rotation actuators (102A; 102B; 102C). The screw-drive unit (101) also includes a prefabricated screw-translation actuator (106A) that is selected from a collection (108) that has prefabricated screw-translation actuators (106A; 106B; 106C). The prefabricated screw-translation actuators (106A; 106B; 106C) are cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
A technical effect, amongst other technical effects, of the aspects of the present invention is improved cost-effectiveness associated with manufacturing injection units associated with injection-molding systems.
BRIEF DESCRIPTION OF THE DRAWINGS
A better understanding of the non-limiting embodiments of the present invention (including alternatives and/or variations thereof) may be obtained with reference to the detailed description of the non-limiting embodiments along with the following drawings, in which:
FIGS. IA and 1B depict schematic representations of an injector unit according to a first non-limiting embodiment;
FIG. 2 depicts a schematic representation of the injector unit 100 according to a second non-limiting embodiment;
FIG. 3 depicts a schematic representation of the injector unit 100 according to a third non-limiting embodiment;
FIG. 4 depicts a schematic representation of the injector unit 100 according to a fourth non-limiting embodiment;
FIG. 5 depicts another schematic representation of the injector unit 100 according to the fourth non-limiting embodiment;
FIG. 6 depicts a schematic representation of the injector unit 100 according to a fifth non-limiting embodiment;
FIG. 7 depicts another schematic representation of the injector unit 100 according to the fifth non-limiting embodiment;
FIG. 8 depicts a schematic representation of the injector unit 100 according to a sixth non-limiting embodiment;
FIG. 9 depicts a schematic representation of the injector unit 100 according to a seventh non-limiting embodiment;
FIGS. 10 to 13 depict perspective views of the injector unit 100 according to the second non-limiting embodiment depicted in FIG. 2; and FIGS. 14 and 15 depict cross sectional views of the injector, unit 100 according to an eighth non-limiting embodiment.
The drawings are not necessarily to scale and are sometimes illustrated by phantom lines, diagrammatic representations and fragmentary views. In certain instances, details that are not necessary for an understanding of the embodiments or that render other details difficult to perceive may have been omitted.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S) The inventors believe that persons of skill in the art do not understand the problem that leads to cost-effective manufacturing of injection-molding systems, and that by understanding the problem, it is believed that a better understanding of the non-limiting embodiments is realized.
FIG. lA depicts the schematic representation of the injector unit 100 according to the first non-limiting embodiment, in which the injector unit 100 includes: (i) a prefabricated screw-rotation actuator 102A, and (ii) a prefabricated screw-translation actuator 106A. The prefabricated screw-rotation actuator 102A is selected from a group 104 that has prefabricated screw-rotation actuators 102A; 102B; 102C. The prefabricated screw-translation actuator 106A is selected from a collection 108 having prefabricated screw-translation actuators 106A; 106B; 106C. The prefabricated screw-rotation actuator 102A is used to rotate a melt-processing screw 114 (depicted in FIG. 2) that is disposed in a barrel assembly 112 of an injector unit 100. The prefabricated screw-translation actuator 106A. is used to translate the melt-processing screw 114.
Fig. 1B depicts a condition or relationaship between the prefabricated screw-rotation actuators 102A;
102B; 102C and the prefabricated screw-rotation actuators 102A; 102B; 102C, in which each of the prefabricated screw-translation actuator 106A; 106B; 106C is cooperative with each of the prefabricated screw-rotation actuators 102A; 102B; 102C. It will be appreciated that it is not required to arrange the prefabricated actuators according to the arrangement depicted in FIG. 1B. A more likely arrangement is that the prefabricated screw-translation actuators 106A;
106B; 106C are cooperative with at least one of the prefabricated screw-rotation actuators 102A; 102B; 102C. The term "cooperative" means that the prefabricated screw-rotation actuators 102A;
102B; 102C and the prefabricated screw-rotation actuators 102A; 102B; 102C are interface compatible with each other and cooperate to be operable with the melt-processing screw 114.
The prefabricated screw-rotation actuators 102A; 102B; 102C and the prefabricated screw-rotation actuators 102A; 102B; 102C are actuators that are: (i) manufactured in standardized assemblies, and (ii) ready for assembly into the injector unit 100 that is to be used in an injection-molding system 99 (depicted in FIG. 2). A technical effect, amongst other technical effects, is improved cost-effectiveness associated with manufacturing injection units associated with injection-molding systems. For a given molding problem or application that is required by: (i) a producer to mold articles, and/or (ii) a manufacturer or supplier of injection units and/or of injection-molding systems having the injector units, may be able to choose from (mixing and matching) a predetermined selection of available prefabricated actuators, so that the manufacturer of the injection unit may operatively assemble the selected prefabricated actuators with the melt-processing screw 114, and in this manner the assembled injection unit may satisfy a particular application that is desired for manufacturing molded articles. In this way, the injection unit is configurable and usable for a specific molding requirement (that is, to mold specific articles). In sharp contrast to the known art, if a manufacturer of a molding system could not satisfy the requirements associated with molding articles according to the needs of a molder, then a custom adaptation of an existing molding system would have to be contemplated, at a much higher cost that would be passed onto the molder or manufacturer of molded articles.
FIG. 2 depicts the schematic representation of the injector unit 100 according to the second non-limiting embodiment, in which the prefabricated screw-translation actuator 106A is couplable with the melt-processing screw 114 that is accommodated by the barrel assembly 112 of the injector unit 100, so that responsive to actuation of the prefabricated screw-translation actuator 106A, the melt-processing screw 114 translates linearly. The prefabricated screw-rotation actuator 102A is couplable with the prefabricated screw-translation actuator 106A, so that responsive to actuation of the prefabricated screw-rotation actuator 102A, the melt-processing screw 114 rotates. The prefabricated screw-rotation actuator 102A and the prefabricated screw-translation actuator 106A cooperate to acutate the melt-processing screw 114, as may be required. The injection-molding system 99 includes: (i) the injector unit 100, and (ii) a clamp assembly 98.
FIG. 3 depicts the schematic representation of the injector unit 100 according to the third non-limiting embodiment, in which the prefabricated screw-rotation actuator 102A is couplable with the melt-processing screw 114, so that responsive to actuation of the prefabricated screw-rotation actuator 102A, the melt-processing screw 114 rotates. The prefabricated screw-translation actuator 106A is couplable with the prefabricated screw-rotation actuator 102A, so that responsive to actuation of the prefabricated screw-translation actuator 106A, the melt-processing screw 114 translates linearly.
FIG. 4 depicts the schematic representation of the injector unit 100 according to the fourth non-limiting embodiment, in which the injector unit 100 further includes a prefabricated transmission unit 120A that is selected from an assemblage 122 having prefabricated transmission units 120A; 120B;
120C. Each of the prefabricated transmission units 120A; 120B; 120C is couplable with the melt-processing screw 114. The prefabricated screw-rotation actuator 102A is couplable with the prefabricated transmission unit 120A, so that responsive to actuation of the prefabricated screw-rotation actuator 102A, the melt-processing screw 114 rotates. The prefabricated screw-translation actuator 106A is couplable with prefabricated transmission unit 120A, so that responsive to actuation of the prefabricated screw-translation actuator 106A, the melt-processing screw 114 translates linearly.
FIG. 5 depicts another schematic representation of the injector unit 100 according to the fourth non-limiting embodiment, in which the prefabricated transmission units 120A; 120B;
120C are: (i) cooperative with at least one of the prefabricated screw-rotation actuators 102A; 102B; 102C, and (ii) cooperative with at least one of the prefabricated screw-translation actuator 106A; 106B; 106C.
FIG. 6 depicts the schematic representation of the injector unit 100 according to the fifth non-limiting embodiment, in which the barrel assembly 112A is selected from a set 115 of barrel assemblies 112A; 112B; 112C. The barrel assembly 112A is cooperative with: (i) at least one of the prefabricated screw-translation actuators 106A; 106B; 106C, and/or (ii) is cooperative with at least one of the prefabricated screw-rotation actuators 102A; 102B; 102C.
FIG. 7 depicts another schematic representation of the injector unit 100 according to the fifth non-limiting embodiment, in which the barrel assembly 112A is cooperative with at least one of the prefabricated transmission units 120A; 120B; 120C.
FIG. 8 depicts the schematic representation of the injector unit 100 according to the sixth non-limiting embodiment, in which the prefabricated screw-translation actuator 106A, includes: (i) a rear assembly 130A, and (ii) a front assembly 140A. The rear assembly 130A is selected from a collective 132 of rear assemblies 130A; 130B; 130C. The front assembly 140A is selected from an assortment 142 of front assemblies 140A; 140B; 140C.
FIG. 9 depicts a schematic representation of the injector unit 100 according to a seventh non-limiting embodiment;
FIGS. 10 to 13 depict perspective views of the injector unit 100 according to the second non-limiting embodiment depicted in FIG. 2; and FIGS. 14 and 15 depict cross sectional views of the injector, unit 100 according to an eighth non-limiting embodiment.
The drawings are not necessarily to scale and are sometimes illustrated by phantom lines, diagrammatic representations and fragmentary views. In certain instances, details that are not necessary for an understanding of the embodiments or that render other details difficult to perceive may have been omitted.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S) The inventors believe that persons of skill in the art do not understand the problem that leads to cost-effective manufacturing of injection-molding systems, and that by understanding the problem, it is believed that a better understanding of the non-limiting embodiments is realized.
FIG. lA depicts the schematic representation of the injector unit 100 according to the first non-limiting embodiment, in which the injector unit 100 includes: (i) a prefabricated screw-rotation actuator 102A, and (ii) a prefabricated screw-translation actuator 106A. The prefabricated screw-rotation actuator 102A is selected from a group 104 that has prefabricated screw-rotation actuators 102A; 102B; 102C. The prefabricated screw-translation actuator 106A is selected from a collection 108 having prefabricated screw-translation actuators 106A; 106B; 106C. The prefabricated screw-rotation actuator 102A is used to rotate a melt-processing screw 114 (depicted in FIG. 2) that is disposed in a barrel assembly 112 of an injector unit 100. The prefabricated screw-translation actuator 106A. is used to translate the melt-processing screw 114.
Fig. 1B depicts a condition or relationaship between the prefabricated screw-rotation actuators 102A;
102B; 102C and the prefabricated screw-rotation actuators 102A; 102B; 102C, in which each of the prefabricated screw-translation actuator 106A; 106B; 106C is cooperative with each of the prefabricated screw-rotation actuators 102A; 102B; 102C. It will be appreciated that it is not required to arrange the prefabricated actuators according to the arrangement depicted in FIG. 1B. A more likely arrangement is that the prefabricated screw-translation actuators 106A;
106B; 106C are cooperative with at least one of the prefabricated screw-rotation actuators 102A; 102B; 102C. The term "cooperative" means that the prefabricated screw-rotation actuators 102A;
102B; 102C and the prefabricated screw-rotation actuators 102A; 102B; 102C are interface compatible with each other and cooperate to be operable with the melt-processing screw 114.
The prefabricated screw-rotation actuators 102A; 102B; 102C and the prefabricated screw-rotation actuators 102A; 102B; 102C are actuators that are: (i) manufactured in standardized assemblies, and (ii) ready for assembly into the injector unit 100 that is to be used in an injection-molding system 99 (depicted in FIG. 2). A technical effect, amongst other technical effects, is improved cost-effectiveness associated with manufacturing injection units associated with injection-molding systems. For a given molding problem or application that is required by: (i) a producer to mold articles, and/or (ii) a manufacturer or supplier of injection units and/or of injection-molding systems having the injector units, may be able to choose from (mixing and matching) a predetermined selection of available prefabricated actuators, so that the manufacturer of the injection unit may operatively assemble the selected prefabricated actuators with the melt-processing screw 114, and in this manner the assembled injection unit may satisfy a particular application that is desired for manufacturing molded articles. In this way, the injection unit is configurable and usable for a specific molding requirement (that is, to mold specific articles). In sharp contrast to the known art, if a manufacturer of a molding system could not satisfy the requirements associated with molding articles according to the needs of a molder, then a custom adaptation of an existing molding system would have to be contemplated, at a much higher cost that would be passed onto the molder or manufacturer of molded articles.
FIG. 2 depicts the schematic representation of the injector unit 100 according to the second non-limiting embodiment, in which the prefabricated screw-translation actuator 106A is couplable with the melt-processing screw 114 that is accommodated by the barrel assembly 112 of the injector unit 100, so that responsive to actuation of the prefabricated screw-translation actuator 106A, the melt-processing screw 114 translates linearly. The prefabricated screw-rotation actuator 102A is couplable with the prefabricated screw-translation actuator 106A, so that responsive to actuation of the prefabricated screw-rotation actuator 102A, the melt-processing screw 114 rotates. The prefabricated screw-rotation actuator 102A and the prefabricated screw-translation actuator 106A cooperate to acutate the melt-processing screw 114, as may be required. The injection-molding system 99 includes: (i) the injector unit 100, and (ii) a clamp assembly 98.
FIG. 3 depicts the schematic representation of the injector unit 100 according to the third non-limiting embodiment, in which the prefabricated screw-rotation actuator 102A is couplable with the melt-processing screw 114, so that responsive to actuation of the prefabricated screw-rotation actuator 102A, the melt-processing screw 114 rotates. The prefabricated screw-translation actuator 106A is couplable with the prefabricated screw-rotation actuator 102A, so that responsive to actuation of the prefabricated screw-translation actuator 106A, the melt-processing screw 114 translates linearly.
FIG. 4 depicts the schematic representation of the injector unit 100 according to the fourth non-limiting embodiment, in which the injector unit 100 further includes a prefabricated transmission unit 120A that is selected from an assemblage 122 having prefabricated transmission units 120A; 120B;
120C. Each of the prefabricated transmission units 120A; 120B; 120C is couplable with the melt-processing screw 114. The prefabricated screw-rotation actuator 102A is couplable with the prefabricated transmission unit 120A, so that responsive to actuation of the prefabricated screw-rotation actuator 102A, the melt-processing screw 114 rotates. The prefabricated screw-translation actuator 106A is couplable with prefabricated transmission unit 120A, so that responsive to actuation of the prefabricated screw-translation actuator 106A, the melt-processing screw 114 translates linearly.
FIG. 5 depicts another schematic representation of the injector unit 100 according to the fourth non-limiting embodiment, in which the prefabricated transmission units 120A; 120B;
120C are: (i) cooperative with at least one of the prefabricated screw-rotation actuators 102A; 102B; 102C, and (ii) cooperative with at least one of the prefabricated screw-translation actuator 106A; 106B; 106C.
FIG. 6 depicts the schematic representation of the injector unit 100 according to the fifth non-limiting embodiment, in which the barrel assembly 112A is selected from a set 115 of barrel assemblies 112A; 112B; 112C. The barrel assembly 112A is cooperative with: (i) at least one of the prefabricated screw-translation actuators 106A; 106B; 106C, and/or (ii) is cooperative with at least one of the prefabricated screw-rotation actuators 102A; 102B; 102C.
FIG. 7 depicts another schematic representation of the injector unit 100 according to the fifth non-limiting embodiment, in which the barrel assembly 112A is cooperative with at least one of the prefabricated transmission units 120A; 120B; 120C.
FIG. 8 depicts the schematic representation of the injector unit 100 according to the sixth non-limiting embodiment, in which the prefabricated screw-translation actuator 106A, includes: (i) a rear assembly 130A, and (ii) a front assembly 140A. The rear assembly 130A is selected from a collective 132 of rear assemblies 130A; 130B; 130C. The front assembly 140A is selected from an assortment 142 of front assemblies 140A; 140B; 140C.
FIG. 9 depicts the schematic representation of the injector unit 100 according to the seventh non-limiting embodiment, in which the prefabricated screw-rotation actuator 102A
includes: (i) a first module 150A, and (ii) a second module 160A. The first module 150A is selected from a grouping 152 of first modules 150A; 150B; 150C. The second module 160A is selected from an allocation 162 of second modules 160A; 160B; 160C.
FIGS. 10 to 13 depict perspective views of the injector unit 100 according to the second non-limiting embodiment depicted in FIG. 2.
FIG. 10 depicts a general-purposed injection-molding system.
FIG. 11 depicts an injection-molding system that is used for manufacturing thin-walled packaging, such as food-bearing containers, etc.
FIG. 12 depicts an injection-molding system that is used for manufacturing metallic articles, such as laptop cases, cell-phone housings, automobile parts, etc.
FIG. 13 depicts an injection-molding system that is used for manufacturing PET
Polyethylene Terephthalate performs.
FIGS. 14 and 15 depict cross sectional views of the injector unit 100 according to the eighth non-limiting embodiment. The prefabricated screw-translation actuator 106A
includes: (i) a front assembly 140A, and (ii) a rear assembly 130A.
The front assembly 140A includes a front housing 220 that is configured to receive and to accommodate the barrel assembly 112, and the barrel assembly 112 accommodates the melt-processing screw 114. A collar 222 is fitted around the end of the barrel assembly 112 so that the barrel assembly 112 is held stationary relative to the front housing 220. The front housing 220 is supported by a linear bearing 224 (also called a first linear bearing) that is mounted to a plate 226, and the linear bearings 224 permit the front housing 220 to slide relative to the plate 226. A carriage cylinder (not depicted, but known) is coupled with the front housing 220 so that the carriage cylinder may be used to linearly translate the front housing forward so that the machine nozzle (not depicted, but known) that is attached to the front end of the barrel assembly 112 may contact a sprue or conduit that leads to a mold or a hot runner, etc, as may be required.
The rear assembly 130A includes a rear housing 330 that is connected (using bolts) with the front housing 220. In this way, the front housing 220 and the rear housing 230 may be interfaced with each other. The rear housing 330 defines a cylinder therein. The rear assembly 130A
also includes a piston 332 that is linearly translatable along the cylinder defined by the rear housing 330. The piston 332 is connected with an end portion of the melt-processing screw 114. When the piston 332 is made to translate linearly, the melt-processing screw 114 will also translate linearly. The rear assembly 130A
also includes a seal assembly 334 that is used to seal the cylinder defined by the rear housing 330 from the front housing 220. The cylinder includes: (i) a bore chamber 336 and (ii) a rod chamber 338.
The bore chamber 336 and the rod chamber 338 are both pressurizable by way of a hydraulic fluid that is pumped into the cylinder or removed from the chambers 336, 338.
Fig. 14 depicts the piston 332 in a retracted position; that is, the melt-processing screw 114 is retraced. To retract the melt-processing screw 114, the bore chamber 336 is pressurized while the rod chamber 338 is unpressurized, so that the piston 332 may be moved toward the right-hand side of FIG. 14.
Fig. 15 depicts the piston 332 in an injection position, in which the bore chamber 336 is unpressurized while the rod chamber 338 is pressurized so that the piston 332 may be moved to the left-hand side of FIG. 15. The rear housing 330 is mounted to a linear bearing 339 (also called a second linear bearing), and the linear bearing 339 is mounted with the plate 226, so that the rear housing 330 may be translated linearly with the front housing 220. The piston 332 includes a piston shaft 333 that extends along a longitudinal axis of the piston 332 away from the front housing 220.
The piston shaft 333 includes a spline insert 335 that is attached with an end of the piston shaft 333.
The spline insert defines channels that extend from one end of the spline insert 335 to the other end of the spline insert 335.
The prefabricated screw-rotation actuator 102 includes: (i) a housing 202, (ii) a stator 204 that is mounted to the housing 202, (iii) a rotor 206 that is rotatable relative to the stator 204, (iv) an end cover 208, (v) a lift handle 210 connected with the housing 202, and (vi) a power box 212 that is mounted to the housing 202, so that power may be delivered to energize the stator 204 and the rotor 206. The housing 202 is connected with the rear housing 330 by way of bolts 213. In this way, the front housing 220 is interface compatible with the rear housing 330.
A spline sleeve 214 is fixedly mounted with (one end oo the rotor 206, and extends inside the front housing 220. As depicted, the spline sleeve 214 is connected with the rotor 206, so that when the rotor 206 is made to rotate, the spline sleeve 214 may rotate as well. The spline sleeve 214 includes splines 216 that extend along the longitudinal axis of the housing 202. The spline sleeve 214 is filled with oil.
The spline insert 335, which is attached with the end of the piston shaft 333, is slidably matable with the spline sleeve 214, so that the spline insert 335 may be linearly translated along the spline sleeve 214 when the piston 332 is made to be translated linearly. When the spline insert 335 is made to translate linearly, the oil in the spline sleeve 214 may move freely through the channels defined by the spline insert 335.
In operation, when the stator 204 is energized, the rotor 206 is made to rotate, and the spline sleeve 214 is also made to rotate. This arrangmenet will cause the spline insert 335 to rotate, and in turn the piston 332 will rotate. In this arrangement, the melt-processing screw 114 will then rotate. For the case when the stator 204 is de-energized, the piston 332 may be translated linearly, and the spline insert 335 will slide relative to the spline sleeve 214, while oil is made to pass through the passageways defined by the spline insert 335.
A sensor 400 is mounted to the end cover 208. The sensor 400 includes a sensor shaft 402 that extends from the sensor 400 into a bore that is defined in the end of the piston shaft 333. The sensor 400 is used to detect the position of the piston 332. An example of the sensor 400 is a position sensor, which uses magnets. The sensor 400 is manufactured by MTS Sensors (http://www.mtssensors.com and is sold under the trade name of Temposonic (trademark).
The description of the non-limiting embodiments provides non-limiting examples of the present invention; these non-limiting examples do not limit the scope of the claims of the present invention.
The non-limiting embodiments described are within the scope of the claims of the present invention.
The non-limiting embodiments described above may be: (i) adapted, modified and/or enhanced, as may be expected by persons skilled in the art, for specific conditions and/or functions, without departing from the scope of the claims herein, and/or (ii) further extended to a variety of other applications without departing from the scope of the claims herein. It is to be understood that the non-limiting embodiments illustrate the aspects of the present invention.
Reference herein to details and description of the non-limiting embodiments is not intended to limit the scope of the claims of the present invention. Other non-limiting embodiments, which may not have been described above, may be within the scope of the appended claims. It is understood that: (i) the scope of the present invention is limited by the claims, (ii) the claims themselves recite those features regarded as essential to the present invention, and (iii) preferable embodiments of the present invention are the subject of dependent claims. Therefore, what is to be protected by way of letters patent are limited only by the scope of the following claims:
includes: (i) a first module 150A, and (ii) a second module 160A. The first module 150A is selected from a grouping 152 of first modules 150A; 150B; 150C. The second module 160A is selected from an allocation 162 of second modules 160A; 160B; 160C.
FIGS. 10 to 13 depict perspective views of the injector unit 100 according to the second non-limiting embodiment depicted in FIG. 2.
FIG. 10 depicts a general-purposed injection-molding system.
FIG. 11 depicts an injection-molding system that is used for manufacturing thin-walled packaging, such as food-bearing containers, etc.
FIG. 12 depicts an injection-molding system that is used for manufacturing metallic articles, such as laptop cases, cell-phone housings, automobile parts, etc.
FIG. 13 depicts an injection-molding system that is used for manufacturing PET
Polyethylene Terephthalate performs.
FIGS. 14 and 15 depict cross sectional views of the injector unit 100 according to the eighth non-limiting embodiment. The prefabricated screw-translation actuator 106A
includes: (i) a front assembly 140A, and (ii) a rear assembly 130A.
The front assembly 140A includes a front housing 220 that is configured to receive and to accommodate the barrel assembly 112, and the barrel assembly 112 accommodates the melt-processing screw 114. A collar 222 is fitted around the end of the barrel assembly 112 so that the barrel assembly 112 is held stationary relative to the front housing 220. The front housing 220 is supported by a linear bearing 224 (also called a first linear bearing) that is mounted to a plate 226, and the linear bearings 224 permit the front housing 220 to slide relative to the plate 226. A carriage cylinder (not depicted, but known) is coupled with the front housing 220 so that the carriage cylinder may be used to linearly translate the front housing forward so that the machine nozzle (not depicted, but known) that is attached to the front end of the barrel assembly 112 may contact a sprue or conduit that leads to a mold or a hot runner, etc, as may be required.
The rear assembly 130A includes a rear housing 330 that is connected (using bolts) with the front housing 220. In this way, the front housing 220 and the rear housing 230 may be interfaced with each other. The rear housing 330 defines a cylinder therein. The rear assembly 130A
also includes a piston 332 that is linearly translatable along the cylinder defined by the rear housing 330. The piston 332 is connected with an end portion of the melt-processing screw 114. When the piston 332 is made to translate linearly, the melt-processing screw 114 will also translate linearly. The rear assembly 130A
also includes a seal assembly 334 that is used to seal the cylinder defined by the rear housing 330 from the front housing 220. The cylinder includes: (i) a bore chamber 336 and (ii) a rod chamber 338.
The bore chamber 336 and the rod chamber 338 are both pressurizable by way of a hydraulic fluid that is pumped into the cylinder or removed from the chambers 336, 338.
Fig. 14 depicts the piston 332 in a retracted position; that is, the melt-processing screw 114 is retraced. To retract the melt-processing screw 114, the bore chamber 336 is pressurized while the rod chamber 338 is unpressurized, so that the piston 332 may be moved toward the right-hand side of FIG. 14.
Fig. 15 depicts the piston 332 in an injection position, in which the bore chamber 336 is unpressurized while the rod chamber 338 is pressurized so that the piston 332 may be moved to the left-hand side of FIG. 15. The rear housing 330 is mounted to a linear bearing 339 (also called a second linear bearing), and the linear bearing 339 is mounted with the plate 226, so that the rear housing 330 may be translated linearly with the front housing 220. The piston 332 includes a piston shaft 333 that extends along a longitudinal axis of the piston 332 away from the front housing 220.
The piston shaft 333 includes a spline insert 335 that is attached with an end of the piston shaft 333.
The spline insert defines channels that extend from one end of the spline insert 335 to the other end of the spline insert 335.
The prefabricated screw-rotation actuator 102 includes: (i) a housing 202, (ii) a stator 204 that is mounted to the housing 202, (iii) a rotor 206 that is rotatable relative to the stator 204, (iv) an end cover 208, (v) a lift handle 210 connected with the housing 202, and (vi) a power box 212 that is mounted to the housing 202, so that power may be delivered to energize the stator 204 and the rotor 206. The housing 202 is connected with the rear housing 330 by way of bolts 213. In this way, the front housing 220 is interface compatible with the rear housing 330.
A spline sleeve 214 is fixedly mounted with (one end oo the rotor 206, and extends inside the front housing 220. As depicted, the spline sleeve 214 is connected with the rotor 206, so that when the rotor 206 is made to rotate, the spline sleeve 214 may rotate as well. The spline sleeve 214 includes splines 216 that extend along the longitudinal axis of the housing 202. The spline sleeve 214 is filled with oil.
The spline insert 335, which is attached with the end of the piston shaft 333, is slidably matable with the spline sleeve 214, so that the spline insert 335 may be linearly translated along the spline sleeve 214 when the piston 332 is made to be translated linearly. When the spline insert 335 is made to translate linearly, the oil in the spline sleeve 214 may move freely through the channels defined by the spline insert 335.
In operation, when the stator 204 is energized, the rotor 206 is made to rotate, and the spline sleeve 214 is also made to rotate. This arrangmenet will cause the spline insert 335 to rotate, and in turn the piston 332 will rotate. In this arrangement, the melt-processing screw 114 will then rotate. For the case when the stator 204 is de-energized, the piston 332 may be translated linearly, and the spline insert 335 will slide relative to the spline sleeve 214, while oil is made to pass through the passageways defined by the spline insert 335.
A sensor 400 is mounted to the end cover 208. The sensor 400 includes a sensor shaft 402 that extends from the sensor 400 into a bore that is defined in the end of the piston shaft 333. The sensor 400 is used to detect the position of the piston 332. An example of the sensor 400 is a position sensor, which uses magnets. The sensor 400 is manufactured by MTS Sensors (http://www.mtssensors.com and is sold under the trade name of Temposonic (trademark).
The description of the non-limiting embodiments provides non-limiting examples of the present invention; these non-limiting examples do not limit the scope of the claims of the present invention.
The non-limiting embodiments described are within the scope of the claims of the present invention.
The non-limiting embodiments described above may be: (i) adapted, modified and/or enhanced, as may be expected by persons skilled in the art, for specific conditions and/or functions, without departing from the scope of the claims herein, and/or (ii) further extended to a variety of other applications without departing from the scope of the claims herein. It is to be understood that the non-limiting embodiments illustrate the aspects of the present invention.
Reference herein to details and description of the non-limiting embodiments is not intended to limit the scope of the claims of the present invention. Other non-limiting embodiments, which may not have been described above, may be within the scope of the appended claims. It is understood that: (i) the scope of the present invention is limited by the claims, (ii) the claims themselves recite those features regarded as essential to the present invention, and (iii) preferable embodiments of the present invention are the subject of dependent claims. Therefore, what is to be protected by way of letters patent are limited only by the scope of the following claims:
Claims (15)
1. An injector unit (100), comprising:
a screw-drive unit (101), having:
a prefabricated screw-rotation actuator (102A) being selected from a group (104) having prefabricated screw-rotation actuators (102A; 102B; 102C); and a prefabricated screw-translation actuator (106A) being selected from a collection (108) having prefabricated screw-translation actuators (106A; 106B; 106C), the prefabricated screw-translation actuators (106A; 106B; 106C) being cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
a screw-drive unit (101), having:
a prefabricated screw-rotation actuator (102A) being selected from a group (104) having prefabricated screw-rotation actuators (102A; 102B; 102C); and a prefabricated screw-translation actuator (106A) being selected from a collection (108) having prefabricated screw-translation actuators (106A; 106B; 106C), the prefabricated screw-translation actuators (106A; 106B; 106C) being cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
2. The injector unit (100) of claim 1, wherein:
the prefabricated screw-translation actuator (106A) is couplable with a melt-processing screw (114) being accommodated by a barrel assembly (112), and responsive to actuation of the prefabricated screw-translation actuator (106A), the melt-processing screw (114) translates linearly;
and the prefabricated screw-rotation actuator (102A) is couplable with the prefabricated screw-translation actuator (106A), and responsive to actuation of the prefabricated screw-rotation actuator (102A), the melt-processing screw (114) rotates.
the prefabricated screw-translation actuator (106A) is couplable with a melt-processing screw (114) being accommodated by a barrel assembly (112), and responsive to actuation of the prefabricated screw-translation actuator (106A), the melt-processing screw (114) translates linearly;
and the prefabricated screw-rotation actuator (102A) is couplable with the prefabricated screw-translation actuator (106A), and responsive to actuation of the prefabricated screw-rotation actuator (102A), the melt-processing screw (114) rotates.
3. The injector unit (100) of claim 1, wherein:
the prefabricated screw-rotation actuator (102A) is couplable a melt-processing screw (114) being accommodated by a barrel assembly (112), and responsive to actuation of the prefabricated screw-rotation actuator (102A), the melt-processing screw (114) rotates; and the prefabricated screw-translation actuator (106A) is couplable with the prefabricated screw-rotation actuator (102A), and responsive to actuation of the prefabricated screw-translation actuator (106A), the melt-processing screw (114) translates linearly.
the prefabricated screw-rotation actuator (102A) is couplable a melt-processing screw (114) being accommodated by a barrel assembly (112), and responsive to actuation of the prefabricated screw-rotation actuator (102A), the melt-processing screw (114) rotates; and the prefabricated screw-translation actuator (106A) is couplable with the prefabricated screw-rotation actuator (102A), and responsive to actuation of the prefabricated screw-translation actuator (106A), the melt-processing screw (114) translates linearly.
4. The injector unit (100) of claim 1, further comprising:
a prefabricated transmission unit (120A) being selected from an assemblage (122) having prefabricated transmission units (120A; 120B; 120C), each of the prefabricated transmission unit (120A; 120B; 120C) being couplable with a melt-processing screw (114) being accommodated by a barrel assembly (112), wherein:
the prefabricated screw-rotation actuator (102A) is couplable with the prefabricated transmission unit (120A), and responsive to actuation of the prefabricated screw-rotation actuator (102A), the melt-processing screw (114) rotates, and the prefabricated screw-translation actuator (106A) is couplable with the prefabricated transmission unit (120A), and responsive to actuation of the prefabricated screw-translation actuator (106A), the melt-processing screw (114) translates linearly.
a prefabricated transmission unit (120A) being selected from an assemblage (122) having prefabricated transmission units (120A; 120B; 120C), each of the prefabricated transmission unit (120A; 120B; 120C) being couplable with a melt-processing screw (114) being accommodated by a barrel assembly (112), wherein:
the prefabricated screw-rotation actuator (102A) is couplable with the prefabricated transmission unit (120A), and responsive to actuation of the prefabricated screw-rotation actuator (102A), the melt-processing screw (114) rotates, and the prefabricated screw-translation actuator (106A) is couplable with the prefabricated transmission unit (120A), and responsive to actuation of the prefabricated screw-translation actuator (106A), the melt-processing screw (114) translates linearly.
5. The injector unit (100) of claim 1, further comprising:
prefabricated transmission unit (120A) being selected from an assemblage (122) having prefabricated transmission units (120A; 120B; 120C), each of the prefabricated transmission unit (120A; 120B; 120C) being couplable a melt-processing screw (114) being accommodated by a barrel assembly (112), the prefabricated transmission unit (120A) being cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C), and the prefabricated transmission unit (120A) being cooperative with at least one of the prefabricated screw-translation actuator (106A; 106B; 106C).
prefabricated transmission unit (120A) being selected from an assemblage (122) having prefabricated transmission units (120A; 120B; 120C), each of the prefabricated transmission unit (120A; 120B; 120C) being couplable a melt-processing screw (114) being accommodated by a barrel assembly (112), the prefabricated transmission unit (120A) being cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C), and the prefabricated transmission unit (120A) being cooperative with at least one of the prefabricated screw-translation actuator (106A; 106B; 106C).
6. The injector unit (100) of claim 1, further comprising:
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with at least one of the prefabricated screw-translation actuators (106A; 106B; 106C).
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with at least one of the prefabricated screw-translation actuators (106A; 106B; 106C).
7. The injector unit (100) of claim 1, further comprising:
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with at a prefabricated transmission unit (120A).
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with at a prefabricated transmission unit (120A).
8. The injector unit (100) of claim 1, further comprising:
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with at least one of the prefabricated screw-rotation actuators (102A; 102B; 102C).
9. The injector unit (100) of claim 1, further comprising:
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with a prefabricated transmission unit (120A) being selected from an assemblage (122) having prefabricated transmission units (120A; 120B;
120C), each of the prefabricated transmission unit (120A; 120B; 120C) being couplable a melt-processing screw (114) being accommodated by the barrel assembly (112A).
a barrel assembly (112A) is selected from a set (115) of barrel assemblies (112A; 112B; 112C), and the barrel assembly (112A) being cooperative with a prefabricated transmission unit (120A) being selected from an assemblage (122) having prefabricated transmission units (120A; 120B;
120C), each of the prefabricated transmission unit (120A; 120B; 120C) being couplable a melt-processing screw (114) being accommodated by the barrel assembly (112A).
10. The injector unit (100) of claim 1, wherein:
the prefabricated screw-translation actuator (106A), includes:
a rear assembly (130A) being selected from a collective (132) of rear assemblies (130A;
130B; 130C); and a front assembly (140A) being selected from an assortment (142) of front assemblies (140A; 140B; 140C).
the prefabricated screw-translation actuator (106A), includes:
a rear assembly (130A) being selected from a collective (132) of rear assemblies (130A;
130B; 130C); and a front assembly (140A) being selected from an assortment (142) of front assemblies (140A; 140B; 140C).
11. The injector unit (100) of claim 1, wherein:
the prefabricated screw-rotation actuator (102A), includes:
a first module (150A) being selected from a grouping (152) of first modules (150A;
150B; 150C); and a second module (160A) being selected from an allocation (162) of second modules (160A; 160B; 160C).
the prefabricated screw-rotation actuator (102A), includes:
a first module (150A) being selected from a grouping (152) of first modules (150A;
150B; 150C); and a second module (160A) being selected from an allocation (162) of second modules (160A; 160B; 160C).
12. The injector unit (100) of claim 1, wherein:
the prefabricated screw-translation actuator (106A) includes:
a front assembly (140A), including:
a front housing (220) that is configured to receive and to accommodate a barrel assembly (112), and the barrel assembly (112) accommodates a melt-processing screw (114), a collar (222) being fitted around an end of the barrel assembly (112) so that the barrel assembly (112) is held stationary relative to the front housing (220).
the front housing (220) is supported by a first linear bearing (224) that are mounted to a plate (226), and the first linear bearing (224) permit the front housing (220) to slide relative to the plate (226), a rear assembly (130A), including:
a rear housing (330) being connected with the front housing (220), the rear housing (330) defines a cylinder therein, a piston (332) that is linearly translatable along the cylinder defined by the rear housing (330), the piston (332) is connected with the melt-processing screw (114), so that when the piston (332) is made to translate linearly, the melt-processing screw (114) will also translate linearly, a seal assembly (334) sealing the front housing (220) from the cylinder being defined by the rear housing (330), the cylinder includes:
a bore chamber 336, and a rod chamber (338), the bore chamber (336) and the rod chamber (338) are both pressurizable by way of a hydraulic fluid that is pumped into the cylinder or removed from the bore chamber (336) and the rod chamber (338), to retract the melt-processing screw (114), the bore chamber (336) is pressurized while the rod chamber (338) is unpressurized, so that the piston (332) may be moved, in an injection position, the bore chamber (336) is unpressurized while the rod chamber (338) is pressurized so that the piston (332) may be moved, the rear housing (330) being mounted to a second linear bearing (339), and the linear bearing (339) is mounted with the plate (226), so that the rear housing 330 may be translated linearly with the front housing (220), the piston (332) includes:
a piston shaft (333) that extends along a longitudinal axis of the piston 332) away from the front housing (220), the piston shaft 333) includes:
a spline insert (335) that is attached with an end of the piston shaft (333), the spline insert defines channels that extend from one end of the spline insert (335) to an other end of the spline insert (335).
the prefabricated screw-translation actuator (106A) includes:
a front assembly (140A), including:
a front housing (220) that is configured to receive and to accommodate a barrel assembly (112), and the barrel assembly (112) accommodates a melt-processing screw (114), a collar (222) being fitted around an end of the barrel assembly (112) so that the barrel assembly (112) is held stationary relative to the front housing (220).
the front housing (220) is supported by a first linear bearing (224) that are mounted to a plate (226), and the first linear bearing (224) permit the front housing (220) to slide relative to the plate (226), a rear assembly (130A), including:
a rear housing (330) being connected with the front housing (220), the rear housing (330) defines a cylinder therein, a piston (332) that is linearly translatable along the cylinder defined by the rear housing (330), the piston (332) is connected with the melt-processing screw (114), so that when the piston (332) is made to translate linearly, the melt-processing screw (114) will also translate linearly, a seal assembly (334) sealing the front housing (220) from the cylinder being defined by the rear housing (330), the cylinder includes:
a bore chamber 336, and a rod chamber (338), the bore chamber (336) and the rod chamber (338) are both pressurizable by way of a hydraulic fluid that is pumped into the cylinder or removed from the bore chamber (336) and the rod chamber (338), to retract the melt-processing screw (114), the bore chamber (336) is pressurized while the rod chamber (338) is unpressurized, so that the piston (332) may be moved, in an injection position, the bore chamber (336) is unpressurized while the rod chamber (338) is pressurized so that the piston (332) may be moved, the rear housing (330) being mounted to a second linear bearing (339), and the linear bearing (339) is mounted with the plate (226), so that the rear housing 330 may be translated linearly with the front housing (220), the piston (332) includes:
a piston shaft (333) that extends along a longitudinal axis of the piston 332) away from the front housing (220), the piston shaft 333) includes:
a spline insert (335) that is attached with an end of the piston shaft (333), the spline insert defines channels that extend from one end of the spline insert (335) to an other end of the spline insert (335).
13. The injector unit (100) of claim 12, wherein:
the prefabricated screw-rotation actuator (102) includes:
a housing (202) being connected with the rear housing (330) of the prefabricated screw-translation actuator (106A), a stator (204) being mounted to the housing (202), a rotor (206) being rotatable relative to the stator (204), a spline sleeve (214) being fixedly mounted with an end of the rotor (206), and the spline sleeve (214) extends inside the front housing (220), so that when the rotor (206) is made to rotate, the spline sleeve (214) may rotate as well, the spline sleeve (214) is filled with oil, the spline sleeve (214) includes:
splines (216) that extend along the longitudinal axis of the housing (202), the spline insert (335), which is attached with the end of the piston shaft (333), is matable with the spline sleeve (214), so that the spline insert (335) may be linearly translated along the spline sleeve (214) when the piston (332) is made to be translated linearly, when the spline insert (335) is made to move, the oil in the spline sleeve (214) may move freely through the channels defined by the spline insert (335).
the prefabricated screw-rotation actuator (102) includes:
a housing (202) being connected with the rear housing (330) of the prefabricated screw-translation actuator (106A), a stator (204) being mounted to the housing (202), a rotor (206) being rotatable relative to the stator (204), a spline sleeve (214) being fixedly mounted with an end of the rotor (206), and the spline sleeve (214) extends inside the front housing (220), so that when the rotor (206) is made to rotate, the spline sleeve (214) may rotate as well, the spline sleeve (214) is filled with oil, the spline sleeve (214) includes:
splines (216) that extend along the longitudinal axis of the housing (202), the spline insert (335), which is attached with the end of the piston shaft (333), is matable with the spline sleeve (214), so that the spline insert (335) may be linearly translated along the spline sleeve (214) when the piston (332) is made to be translated linearly, when the spline insert (335) is made to move, the oil in the spline sleeve (214) may move freely through the channels defined by the spline insert (335).
14. The injector unit (100) of claim 13, further comprising:
a sensor (400) being mounted to the housing (202), the sensor (400) includes:
a sensor shaft (402) that extends from the sensor (400) into a bore that is defined in the end of the piston shaft (333), the sensor (400) being usable to detect a position of the piston (332).
a sensor (400) being mounted to the housing (202), the sensor (400) includes:
a sensor shaft (402) that extends from the sensor (400) into a bore that is defined in the end of the piston shaft (333), the sensor (400) being usable to detect a position of the piston (332).
15. An injection-molding system (99) having the injector unit (100) of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2607390 CA2607390A1 (en) | 2007-10-23 | 2007-10-23 | A robor for an injection molding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2607390 CA2607390A1 (en) | 2007-10-23 | 2007-10-23 | A robor for an injection molding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2607390A1 true CA2607390A1 (en) | 2009-04-23 |
Family
ID=40580708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2607390 Abandoned CA2607390A1 (en) | 2007-10-23 | 2007-10-23 | A robor for an injection molding system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2607390A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147014A1 (en) * | 2010-05-27 | 2011-12-01 | Athena Automation Ltd. | A drive assembly for rotating and translating a screw of an injection molding machine |
| US20210268701A1 (en) * | 2018-07-30 | 2021-09-02 | Kraussmaffei Technologies Gmbh | Plasticizing unit |
| CN117507249A (en) * | 2024-01-08 | 2024-02-06 | 满誉(福建)制鞋机械有限公司 | Equal heating type injection molding machine charging barrel |
-
2007
- 2007-10-23 CA CA 2607390 patent/CA2607390A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147014A1 (en) * | 2010-05-27 | 2011-12-01 | Athena Automation Ltd. | A drive assembly for rotating and translating a screw of an injection molding machine |
| US20210268701A1 (en) * | 2018-07-30 | 2021-09-02 | Kraussmaffei Technologies Gmbh | Plasticizing unit |
| US11654602B2 (en) * | 2018-07-30 | 2023-05-23 | Kraussmaffei Technologies Gmbh | Plasticizing unit |
| CN117507249A (en) * | 2024-01-08 | 2024-02-06 | 满誉(福建)制鞋机械有限公司 | Equal heating type injection molding machine charging barrel |
| CN117507249B (en) * | 2024-01-08 | 2024-04-05 | 满誉(福建)制鞋机械有限公司 | Equal heating type injection molding machine charging barrel |
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