US20080056876A1 - Injection molding system with part positioning jig and pick and place tool - Google Patents
Injection molding system with part positioning jig and pick and place tool Download PDFInfo
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- US20080056876A1 US20080056876A1 US11/927,384 US92738407A US2008056876A1 US 20080056876 A1 US20080056876 A1 US 20080056876A1 US 92738407 A US92738407 A US 92738407A US 2008056876 A1 US2008056876 A1 US 2008056876A1
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- Prior art keywords
- pick
- mold
- pin
- mold section
- place tool
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- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
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- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14147—Positioning or centering articles in the mould using pins or needles penetrating through the insert
Definitions
- the present invention relates generally to plastic injection molding and more particularly to a positioning jig and pick and place tooling for an injection molding device and process.
- a plastic component may be molded to a non-plastic element.
- a plastic connector is molded to a fabric strap to provide a means for attaching the strap to yet another component or part, or for connecting two molded connecting buckle ends to one another, for instance, to be used as a belt.
- positioning a part with respect to a mold may be achieved by positioning a portion of the part to which a plastic element is to be molded, in a detent or recessed portion of a first mold section or mold insert.
- the mold insert once a part that is to be attached to the molded component is positioned on the mold insert, the mold insert must be handled rather delicately, until the insert is mated with the a second mold section pinching or compressing the part between the mold insert and the second mold section.
- the mold section to upon which the part that is to be attached to the molded component is positioned typically remains in a horizontal position until the molding process is complete.
- the described process or methodology provides distinct limitations particularly when considering the use of vertical injection molding devices and processes or various tooling for automated settings. Maintaining the location of the part with respect to the mold insert in production settings has proven challenging. Because of the orientation of the mold, parts are prone to shifting and displacement during the course of the process. Additionally, placing parts to which a component is to be molded is similarly challenging, particularly in a production setting.
- a plastic injection molding system that includes a device for positively locating a part to which a plastic element is to be molded with respect to the mold. Additional advantage may be found in providing a plastic injection molding system that includes a positioning jig for accurately locating and positioning a part to which a plastic element is to be molded, in a selected orientation for subsequent placement in a mold section. Additional advantage may be found in providing a pick and place tool adapted to pick the part to which a plastic element is to be molded from the positioning jig and accurately transport the part to a mold section, accurately placing the part with respect to the mold section in the selected orientation.
- Additional advantage may be found in providing a pick and place tool adapted to pick the part to which a plastic element is to be molded from the positioning jig and transport the part to the mold, accurately placing the part in a selected orientation for a subsequent molding process. Additional advantage may be found in providing a mold section having a face oriented in a substantially vertical plane that is adapted to receive a part to which a plastic element is to be molded, accurately maintaining a selected orientation for a subsequent molding process until the injection molding process has been completed.
- An objective of the present invention therefore is to provide a plastic injection molding system that includes a device that positions a part to which a plastic element is to be molded in a selected position with respect to the mold.
- An additional objective of the present invention is providing a plastic injection molding system that includes a positioning jig for accurately positioning a part to which a plastic element is to be molded, for subsequent placement in a mold section.
- An additional objective of the present invention is providing a pick and place tool adapted to pick the part to which a plastic element is to be molded from the positioning jig and transport the part to the mold, accurately positioning the part in the mold maintaining the selected position of the part.
- An additional objective of the present invention is providing a mold section adapted to receive a part to which a plastic element is to be molded, accurately maintaining the selected position of the part until the injection molding process has been completed.
- the present invention is directed to a pick and place tool including a part penetration element adapted to induce a compressive force by the part against the part penetration element, securing the part to the part penetration element.
- the pick and place tool secures a part at first location employing an induced compressive force by the part against a part penetration element of the pick and place tool.
- the present invention is also directed to an injection molding system that includes an injection molding device including a pick and place tool having a first part penetration element adapted to induce a compressive force by the part against the first part penetration element, securing the part to the part penetration element.
- the injection molding system may also include a positioning jig for positioning a part to which a plastic component is to be molded I a selected position.
- the pick and place tool picks the part from a positioning jig and transports the part to a mold section of the injection molding device and releases the part to the mold section. Transport of the pick and place tool part with the attached part is accomplished by a pick and place tool transport means attached to the pick and place tool.
- the pick and place tool transport means may be accomplished either manually or by well known automated means.
- the mold section includes a second part penetration element adapted to induce a compressive force by the part against the second part penetration element.
- the pick and place tool also includes a part release system adapted to release the part from the first part penetration element of the pick and place tool to the second part penetration element of the mold section.
- the present invention is also directed to a method for picking a part with a pick and place tool including a first part penetration element adapted to induce a generation of a compressive force by the part against the part penetration element, securing the part to the part penetration element.
- the method includes securing a part by the first part penetration element at first location employing an induced compressive force by the part against a part penetration element of the pick and place tool and transporting the part to a second location.
- the method may also include transferring the part from the pick and place tool to a second part penetration element at the second location.
- FIG. 1 is a schematic representation of a plastic injection molding system according to the present invention
- FIG. 2 is a representative top view of a positioning jig according to the present invention.
- FIG. 3 is a representative top view of a positioning jig, having a part positioned on an upper face according to the present invention
- FIG. 4 is a representative top view of a pick and place tool according to the present invention.
- FIG. 5 is a representative bottom view of a pick and place tool according to the present invention.
- FIG. 6 is a representative detail bottom view of a pick and place tool according to the present invention.
- FIG. 7 is a representative side view of a pick and place tool according to the present invention.
- FIG. 8 is a representative side view of a pick and place tool according to the present invention.
- FIG. 9 is a representative top view of a pick and place tool positioned above a positioning jig according to the present invention.
- FIG. 10 is a representative side cutaway view of a pick and place tool positioned on an upper face of positioning jig according to the present invention.
- FIG. 11 is a representative detail side cutaway view of a pick and place tool positioned on an upper face of positioning jig according to the present invention.
- FIG. 12 is a representative bottom view of a pick and place tool according to the present invention.
- FIG. 13 is a representative front view of a mold section adapted to receive a part from the pick and place tool according to the present invention
- FIG. 14 is a representative top view of a pick and place tool positioned against a mold section according to the present invention.
- FIG. 15 is a representative side cutaway view of a pick and place tool positioned against a mold section according to the present invention.
- FIG. 16 is a representative side cutaway view of a pick and place tool positioned against a mold section according to the present invention.
- FIG. 17 is a representative front view of a mold section according to the present invention.
- injection molding system 10 includes injection molding device 15 , positioning jig 30 and pick and place tool 50 .
- Injection molding device 15 includes stationary first mold section 20 positioned in opposing relationship to moveable second mold section 11 .
- Moveable second mold section 11 is extendable and retractable along line L against stationary first mold section 20 by operation of ram 14 .
- Pressurized fluid system 12 provides necessary fluid power for operation of ram 14 .
- stationary first mold section 20 is fluidly connected to plastic injection system 16 by conduit 19 .
- Plastic injection system 16 is adapted to inject plastic P into stationary first mold section 20 and moveable second mold section 11 , when the respective sections are in contact.
- Control system 17 provides necessary control for operation of injection molding device 15 .
- positioning jig 30 includes jig platen 31 which is fluidly connected to vacuum system 40 through vacuum tube 45 .
- Vacuum system 40 provides a negative pressure at an upper surface of jig platen 31 .
- Pick and place tool 50 is fluidly connected to compressor 70 through air line 75 , which provides compressed air for operation of actuator 52 .
- operator OP provides transport means for movement of pick and place tool 50 between positioning jig 30 and stationary first mold section 20 .
- Positioning jig 30 includes jig platen 31 having platen surface 37 .
- a plurality of positioning detents 33 A, 33 B, 33 C and 33 D are formed on platen surface 37 .
- Alignment studs 32 A and 32 B provide a means for aligning a pick and place tool with positioning jig 30 as discussed herein below.
- FIG. 2 a plurality of vacuum passages, typified in FIG.
- FIG. 2 also shows a plurality of jig pin receiving apertures forming a plurality of jig pin receiving aperture arrays, indicated by the by the dashed triangles, 35 A, 35 B, 35 C and 35 D, each jig pin receiving aperture array including, in this case, three distinct jig pin receiving apertures, each typified by jig pin receiving aperture 36 .
- the jig pin receiving aperture arrays may include any arrangement of two or more jig pin receiving apertures.
- positioning jig 30 is shown with two parts positioned for picking, in the case strap S 1 and strap S 2 . More particularly, ends E 1 and E 2 are shown positioned in positioning detents 33 A and 33 B respectively and ends E 3 and E 4 are positioned in positioning detents 33 C and 33 D respectively. Vacuum tube 45 is shown connected to jig platen 31 .
- pick and place tool 50 includes tool body 68 having first tool body element 51 , shown in FIGS. 4 , 7 - 12 and 14 - 16 , to which pneumatic actuator 52 is mounted.
- FIGS. 5-8 , 10 - 12 and 15 - 16 show second body element 58 of tool body 68 .
- FIGS. 4, 9 and 14 show pneumatic valve 53 connected to pneumatic actuator 52 .
- Pneumatic valve 53 includes actuator operator 54 , which upon operation permits a flow of pressurized air through bypass 56 into pneumatic actuator 52 .
- FIGS. 4 , 5 , 9 , 12 and 14 show alignment apertures 55 A and 55 B, which facilitate alignment of pick and place tool 50 with both positioning jig 30 as shown in FIG. 9 , and with stationary first mold section 20 , as shown in FIG. 14 , and as discussed herein below.
- pick and place tool 50 is shown in a bottom view. From this perspective, lower plate 58 is shown including a plurality of penetration elements located on bottom face 57 . Each penetration element includes a pick and place tool pin array indicated by the dashed triangles, 60 A, 60 B, 60 C and 60 D, each pick and place tool pin array including, in this case, three pins, typified by pin 59 . Each pin of pick and place tool pin arrays 60 A, 60 B, 60 C and 60 D extends through lower plate 58 in one of a plurality of pin sheath apertures.
- the plurality of pin sheath apertures form pin sheath aperture arrays indicated by the dashed triangles 61 A, 61 B, 61 C and 610 D, each pin sheath aperture typified in FIG. 5 by pin sheath aperture 71 .
- Lower plate 58 also includes a plurality of mold pin receiving aperture arrays, shown by the by the dashed triangles, 65 A, 65 B, 65 C and 65 D, each mold pin receiving aperture array including, in this case, by three distinct mold pin receiving apertures, each typified by mold pin receiving aperture 66 .
- FIG. 5 also shows alignment apertures 55 A and 55 B, which facilitate alignment of pick and place tool 50 with both positioning jig 30 as shown in FIG. 9 , and with stationary first mold section 20 , as shown in FIG. 14 , and as discussed herein below.
- FIG. 6 is a bottom view detail showing that part of bottom face 57 of lower plate 58 that includes pick and place tool pin array 60 D including three pins, each pin typified in FIG. 6 by pin 59 .
- each pin of pick and place tool pin array 60 D extends through a pin sheath aperture, the plurality of pin sheath apertures forming pin sheath aperture array 610 D.
- FIG. 6 also shows mold pin receiving aperture array 65 D including, in this case, three distinct mold pin receiving apertures, each of the mold pin receiving apertures typified in FIG. 6 by mold pin receiving aperture 66 .
- FIG. 6 also shows alignment aperture 55 B located on bottom face 57 of lower plate 58 .
- pick and place tool 50 is shown in a side view.
- pick and place tool 50 includes tool body 68 including first tool body element 51 lying substantially in a first plane P 1 and second tool body element 58 lying substantially in a second plane P 2 .
- the pins of pick and place tool pin arrays 60 B and 60 D typified in FIGS. 7 and 8 by pin 59 , are shown extending through lower plate 58 .
- first tool body element 51 and second tool body element 58 are in contact and as shown and pick and place tool pin arrays 60 B and 60 D are exposed.
- operation of part release system 69 is demonstrated.
- pneumatic actuator 52 When pneumatic actuator 52 is energized, displaceable rod 62 extends displacing second tool body element 58 with respect to first tool body element 51 , to third plane P 3 .
- pick and place tool 50 is shown positioned on top of jig platen 31 of positioning jig 30 .
- pick and place tool 50 is aligned with respect to positioning jig 30 by insertion of alignment studs 32 A and 32 B through alignment apertures 55 A and 55 B.
- the end portions of straps S 1 and S 2 are positioned between pick and place tool 50 and positioning jig 30 .
- FIG. 9 shows vacuum tube 45 pneumatically connected to jig platen 31 .
- pick and place tool 50 is shown including tool body 68 having first tool body element 51 and second tool body element 58 . End E 2 of strap S 1 and end E 4 of strap S 2 are shown disposed between second tool body element 58 and jig platen 31 .
- FIG. 11 shows a detail side cutaway view of end E 4 of strap S 2 positioned in positioning detent 33 D between bottom face 57 of second tool body element 58 of pick and place tool 50 and against upper face 37 of jig platen 31 of positioning jig 30 .
- each pin of the pick and place tool pin arrays 60 A, 60 B, 60 C and 60 D, shown in FIG. 5 ), and typified in FIG.
- pin 59 attached to first tool body element 51 and extending through pin sheath aperture 71 , typical of the plurality of pin sheath apertures forming the pin sheath aperture arrays 61 A, 61 B, 61 C and 610 D, (shown in FIG. 5 ). Also shown in FIG. 11 is mold pin receiving aperture 66 .
- FIG. 12 shows strap S 1 and S 2 positioned against bottom face 57 of second tool body element 58 of pick and place tool 50 .
- end E 1 of strap S 1 is held in position by pick and place tool pin array 60 A and end E 2 of strap S 1 is held in position by pick and place tool pin array 60 B.
- end E 3 of strap S 2 is held in position by pick and place tool pin array 60 C and end E 4 of strap S 2 is held in position by pick and place tool pin array 60 D.
- Compressive force C 1 is induced in straps S 1 and S 2 against the pins of pick and place tool pin arrays 60 A, 60 B, 60 C and 60 D, each pin typified by pin 59 , at the location at which the pins penetrate the straps.
- alignment apertures 55 A and 55 B are also shown in FIG. 12 .
- FIGS. 13 and 17 show stationary first mold section 20 for molding a plastic element at each end of a pair of straps S 1 and S 2 as shown in FIG. 17 .
- FIGS. 13, 14 and 17 show stationary first mold section 20 including first mold plate 21 having face 29 .
- FIGS. 13 and 17 show face 29 including a plurality of part positioning detents 22 A, 22 B, 22 C and 22 D, which provide locations at which parts are to be positioned. Contiguous to each of the part positioning detents 22 A, 22 B, 22 C and 22 D are mold cavities 24 A, 24 B, 24 C and 24 D respectively.
- First mold plate 21 includes a plurality of mold section penetration elements located on face 29 .
- Each mold section penetration element includes a mold section pin array indicated by the by the dashed triangles, 25 A, 25 B, 25 C and 25 D, each mold section pin array including, in this case, three pins, typified in FIGS. 13 and 17 by pin 28 .
- first mold plate 21 also includes a plurality of pick-up pin receiving aperture arrays, shown by the by the dashed triangles, 27 A, 27 B, 27 C and 27 D, each mold pin receiving aperture array including in this case by three distinct pick-up pin receiving apertures, each typified in FIG. 13 by pick-up pin receiving aperture 26 .
- FIGS. 13 and 17 show alignment studs 23 A and 23 B, which provide a means for aligning pick and place tool 50 , as shown in FIGS. 14-16 , with stationary first mold section 20 as discussed herein below.
- pick and place tool 50 is shown positioned in an interfacing relation against face 29 of first mold plate 21 .
- pick and place tool 50 is aligned with respect to first mold plate 21 of stationary first mold section 20 by insertion of alignment studs 23 A and 23 B through alignment apertures 55 A and 55 B.
- Straps S 1 and S 2 are positioned partially between pick and place tool 50 and first mold plate 21 .
- FIGS. 15 and 16 show, end E 2 of strap S 1 and end E 4 of strap S 2 disposed between second tool body element 58 and first mold plate 21 with ends E 2 and E 4 extending into mold cavities 24 B and 24 D respectively.
- FIG. 15 by pin 28 , pierces through the strap section entering one of the mold pin receiving apertures of the mold pin receiving aperture arrays 65 A, 65 B, 65 C and 65 D, (shown in FIG. 5 ), each mold pin receiving aperture typified in FIG. 15 by mold pin receiving aperture 66 .
- FIG. 15 shows pin 59 attached to first tool body element 51 and extending through pin sheath aperture 71 . Also shown in FIG. 11 is mold pin receiving aperture 66 .
- FIG. 16 shows alignment studs 23 A and 23 B, which are exposed when second tool body element 58 is displaced with respect to first tool body element 51 .
- pin sheath aperture 71 extends with respect to pin 59 , releasing end E 4 of strap S 2 from pick and place tool 50 .
- ends E 1 -E 4 of straps S 1 and S 2 remain supported by mold section pin arrays 25 A, 25 B, 25 C and 25 D, (shown in FIG. 13 ), each pin being typified in FIG. 17 by pin 28 which is shown projecting into mold pin receiving aperture 66 .
- moveable second mold section 11 is initiated by operation of pressurized fluid system 12 and ram 14 .
- plastic injection system 16 is energized and, referring to FIGS. 1 and 15 , molten plastic, (not shown), is injected through conduit 19 to the mold cavities 24 A, 24 B, 24 C and 24 D, seen in FIG. 13 .
- ram 14 retracts and moveable second mold section 11 is separated from stationary first mold section 20 .
- the transport means for movement of pick and place tool 50 between positioning jig 30 and stationary first mold section 20 may include other means known to those skilled in the art including robotics or other mechanized means.
- FIG. 1 depicts a single positioning jig 30 it will be appreciated that two or more positioning jigs may be positioned about a turntable that allows parts to be placed of a positioning jig at a first station while pick and place tool 50 is picking from another positioning jig located a second station accessible for instance by a robot.
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Abstract
A pick and place tool including a part penetration element adapted to induce a generation of a compressive force by the part against the part penetration element, securing the part to the part penetration element. The pick and place tool secures a part at first location employing an induced compressive force by the part against a part penetration element of the pick and place tool. In one embodiment, a pick and place tool for picking a part while maintaining a selected part orientation includes a tool body and a part penetration element attached to the tool body, the part penetration element adapted to induce a compressive force by the part against the part penetration element, securing the part to the part penetration element in a selected part orientation.
Description
- This application is a divisional of and claims the priority of U.S. patent application Ser. No. 11/253,926, entitled INJECTION MOLDING SYSTEM WITH PART POSITIONING JIG AND PICK AND PLACE TOOL filed Oct. 18, 2005.
- 1. Technical Field
- The present invention relates generally to plastic injection molding and more particularly to a positioning jig and pick and place tooling for an injection molding device and process.
- 2. Background
- In the field of plastic molding, it is well known that a plastic component may be molded to a non-plastic element. For instance, in one application, a plastic connector is molded to a fabric strap to provide a means for attaching the strap to yet another component or part, or for connecting two molded connecting buckle ends to one another, for instance, to be used as a belt.
- According to the prior art, positioning a part with respect to a mold, may be achieved by positioning a portion of the part to which a plastic element is to be molded, in a detent or recessed portion of a first mold section or mold insert. According to the prior art, once a part that is to be attached to the molded component is positioned on the mold insert, the mold insert must be handled rather delicately, until the insert is mated with the a second mold section pinching or compressing the part between the mold insert and the second mold section. In practice, the mold section to upon which the part that is to be attached to the molded component is positioned typically remains in a horizontal position until the molding process is complete.
- The described process or methodology provides distinct limitations particularly when considering the use of vertical injection molding devices and processes or various tooling for automated settings. Maintaining the location of the part with respect to the mold insert in production settings has proven challenging. Because of the orientation of the mold, parts are prone to shifting and displacement during the course of the process. Additionally, placing parts to which a component is to be molded is similarly challenging, particularly in a production setting.
- Advantage may be found therefore in providing a plastic injection molding system that includes a device for positively locating a part to which a plastic element is to be molded with respect to the mold. Additional advantage may be found in providing a plastic injection molding system that includes a positioning jig for accurately locating and positioning a part to which a plastic element is to be molded, in a selected orientation for subsequent placement in a mold section. Additional advantage may be found in providing a pick and place tool adapted to pick the part to which a plastic element is to be molded from the positioning jig and accurately transport the part to a mold section, accurately placing the part with respect to the mold section in the selected orientation. Additional advantage may be found in providing a pick and place tool adapted to pick the part to which a plastic element is to be molded from the positioning jig and transport the part to the mold, accurately placing the part in a selected orientation for a subsequent molding process. Additional advantage may be found in providing a mold section having a face oriented in a substantially vertical plane that is adapted to receive a part to which a plastic element is to be molded, accurately maintaining a selected orientation for a subsequent molding process until the injection molding process has been completed.
- An objective of the present invention therefore is to provide a plastic injection molding system that includes a device that positions a part to which a plastic element is to be molded in a selected position with respect to the mold. An additional objective of the present invention is providing a plastic injection molding system that includes a positioning jig for accurately positioning a part to which a plastic element is to be molded, for subsequent placement in a mold section. An additional objective of the present invention is providing a pick and place tool adapted to pick the part to which a plastic element is to be molded from the positioning jig and transport the part to the mold, accurately positioning the part in the mold maintaining the selected position of the part. An additional objective of the present invention is providing a mold section adapted to receive a part to which a plastic element is to be molded, accurately maintaining the selected position of the part until the injection molding process has been completed.
- These and other objectives of the present invention are provided by the various embodiments of the invention disclosed herein and by other embodiments that will or may fall within the claimed scope of the present invention as set forth in the appended claims.
- The present invention is directed to a pick and place tool including a part penetration element adapted to induce a compressive force by the part against the part penetration element, securing the part to the part penetration element. The pick and place tool secures a part at first location employing an induced compressive force by the part against a part penetration element of the pick and place tool.
- The present invention is also directed to an injection molding system that includes an injection molding device including a pick and place tool having a first part penetration element adapted to induce a compressive force by the part against the first part penetration element, securing the part to the part penetration element. The injection molding system may also include a positioning jig for positioning a part to which a plastic component is to be molded I a selected position. Employing the compressive force induced in the part against the first part penetration element, the pick and place tool picks the part from a positioning jig and transports the part to a mold section of the injection molding device and releases the part to the mold section. Transport of the pick and place tool part with the attached part is accomplished by a pick and place tool transport means attached to the pick and place tool. The pick and place tool transport means may be accomplished either manually or by well known automated means. In the preferred embodiment of the invention, the mold section includes a second part penetration element adapted to induce a compressive force by the part against the second part penetration element. The pick and place tool also includes a part release system adapted to release the part from the first part penetration element of the pick and place tool to the second part penetration element of the mold section.
- The present invention is also directed to a method for picking a part with a pick and place tool including a first part penetration element adapted to induce a generation of a compressive force by the part against the part penetration element, securing the part to the part penetration element. The method includes securing a part by the first part penetration element at first location employing an induced compressive force by the part against a part penetration element of the pick and place tool and transporting the part to a second location. The method may also include transferring the part from the pick and place tool to a second part penetration element at the second location.
- Additional advantages and novel features of the invention will be set forth in part in the description that follows, and in part will become apparent to those skilled in the art upon examination of the following, or may be learned by practice of the invention. Additionally, the advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.
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FIG. 1 is a schematic representation of a plastic injection molding system according to the present invention; -
FIG. 2 is a representative top view of a positioning jig according to the present invention; -
FIG. 3 is a representative top view of a positioning jig, having a part positioned on an upper face according to the present invention; -
FIG. 4 is a representative top view of a pick and place tool according to the present invention; -
FIG. 5 is a representative bottom view of a pick and place tool according to the present invention; -
FIG. 6 is a representative detail bottom view of a pick and place tool according to the present invention; -
FIG. 7 is a representative side view of a pick and place tool according to the present invention; -
FIG. 8 is a representative side view of a pick and place tool according to the present invention; -
FIG. 9 is a representative top view of a pick and place tool positioned above a positioning jig according to the present invention; -
FIG. 10 is a representative side cutaway view of a pick and place tool positioned on an upper face of positioning jig according to the present invention; -
FIG. 11 is a representative detail side cutaway view of a pick and place tool positioned on an upper face of positioning jig according to the present invention; -
FIG. 12 is a representative bottom view of a pick and place tool according to the present invention; -
FIG. 13 is a representative front view of a mold section adapted to receive a part from the pick and place tool according to the present invention; -
FIG. 14 is a representative top view of a pick and place tool positioned against a mold section according to the present invention; -
FIG. 15 is a representative side cutaway view of a pick and place tool positioned against a mold section according to the present invention; -
FIG. 16 is a representative side cutaway view of a pick and place tool positioned against a mold section according to the present invention; and -
FIG. 17 is a representative front view of a mold section according to the present invention. - Referring to
FIG. 1 injection molding system 10 includesinjection molding device 15,positioning jig 30 and pick andplace tool 50.Injection molding device 15 includes stationaryfirst mold section 20 positioned in opposing relationship to moveablesecond mold section 11. Moveablesecond mold section 11 is extendable and retractable along line L against stationaryfirst mold section 20 by operation ofram 14.Pressurized fluid system 12 provides necessary fluid power for operation ofram 14. As shownFIG. 1 , stationaryfirst mold section 20 is fluidly connected toplastic injection system 16 byconduit 19.Plastic injection system 16 is adapted to inject plastic P into stationaryfirst mold section 20 and moveablesecond mold section 11, when the respective sections are in contact.Control system 17 provides necessary control for operation ofinjection molding device 15. - As shown
FIG. 1 , positioningjig 30 includesjig platen 31 which is fluidly connected tovacuum system 40 throughvacuum tube 45.Vacuum system 40 provides a negative pressure at an upper surface ofjig platen 31. Pick andplace tool 50 is fluidly connected to compressor 70 throughair line 75, which provides compressed air for operation ofactuator 52. As shown inFIG. 1 , operator OP provides transport means for movement of pick andplace tool 50 betweenpositioning jig 30 and stationaryfirst mold section 20. - Referring to
FIGS. 2 and 3 , positioningjig 30 is shown in greater detail. Positioningjig 30 includesjig platen 31 havingplaten surface 37. A plurality ofpositioning detents platen surface 37.Alignment studs positioning jig 30 as discussed herein below. As shown inFIG. 2 , a plurality of vacuum passages, typified inFIG. 2 byvacuum passage 34, are fluidly connected tovacuum tube 45 and provide negative air pressure atpositioning detents positioning detents FIG. 2 also shows a plurality of jig pin receiving apertures forming a plurality of jig pin receiving aperture arrays, indicated by the by the dashed triangles, 35A, 35B, 35C and 35D, each jig pin receiving aperture array including, in this case, three distinct jig pin receiving apertures, each typified by jigpin receiving aperture 36. In other embodiments, the jig pin receiving aperture arrays may include any arrangement of two or more jig pin receiving apertures. - Referring to
FIG. 3 , positioningjig 30 is shown with two parts positioned for picking, in the case strap S1 and strap S2. More particularly, ends E1 and E2 are shown positioned inpositioning detents Vacuum tube 45 is shown connected tojig platen 31. - Referring to
FIGS. 4, 5 and 7-10, 12 and 14-16, various features of pick andplace tool 50 are shown in greater detail. As shown, pick andplace tool 50 includestool body 68 having firsttool body element 51, shown in FIGS. 4, 7-12 and 14-16, to whichpneumatic actuator 52 is mounted.FIGS. 5-8 , 10-12 and 15-16 showsecond body element 58 oftool body 68.FIGS. 4, 9 and 14, showpneumatic valve 53 connected topneumatic actuator 52.Pneumatic valve 53 includesactuator operator 54, which upon operation permits a flow of pressurized air throughbypass 56 intopneumatic actuator 52.FIGS. 4, 5 , 7-10, and 14-16show air line 75 connected topneumatic valve 53. FIGS. 4, 5,9, 12 and 14show alignment apertures place tool 50 with both positioningjig 30 as shown inFIG. 9 , and with stationaryfirst mold section 20, as shown inFIG. 14 , and as discussed herein below. - Referring to
FIG. 5 , pick andplace tool 50 is shown in a bottom view. From this perspective,lower plate 58 is shown including a plurality of penetration elements located onbottom face 57. Each penetration element includes a pick and place tool pin array indicated by the dashed triangles, 60A, 60B, 60C and 60D, each pick and place tool pin array including, in this case, three pins, typified bypin 59. Each pin of pick and placetool pin arrays lower plate 58 in one of a plurality of pin sheath apertures. The plurality of pin sheath apertures form pin sheath aperture arrays indicated by the dashedtriangles FIG. 5 bypin sheath aperture 71.Lower plate 58 also includes a plurality of mold pin receiving aperture arrays, shown by the by the dashed triangles, 65A, 65B, 65C and 65D, each mold pin receiving aperture array including, in this case, by three distinct mold pin receiving apertures, each typified by moldpin receiving aperture 66.FIG. 5 also showsalignment apertures place tool 50 with both positioningjig 30 as shown inFIG. 9 , and with stationaryfirst mold section 20, as shown inFIG. 14 , and as discussed herein below. -
FIG. 6 is a bottom view detail showing that part ofbottom face 57 oflower plate 58 that includes pick and placetool pin array 60D including three pins, each pin typified inFIG. 6 bypin 59. As shown inFIG. 6 , each pin of pick and placetool pin array 60D extends through a pin sheath aperture, the plurality of pin sheath apertures forming pin sheath aperture array 610D.FIG. 6 also shows mold pin receiving aperture array 65D including, in this case, three distinct mold pin receiving apertures, each of the mold pin receiving apertures typified inFIG. 6 by moldpin receiving aperture 66.FIG. 6 also showsalignment aperture 55B located onbottom face 57 oflower plate 58. - Referring to
FIGS. 7 and 8 , pick andplace tool 50 is shown in a side view. As shown, pick andplace tool 50 includestool body 68 including firsttool body element 51 lying substantially in a first plane P1 and secondtool body element 58 lying substantially in a second plane P2. The pins of pick and placetool pin arrays 60B and 60D, typified inFIGS. 7 and 8 bypin 59, are shown extending throughlower plate 58. Referring toFIG. 7 , firsttool body element 51 and secondtool body element 58 are in contact and as shown and pick and placetool pin arrays 60B and 60D are exposed. As shown inFIG. 8 , operation ofpart release system 69 is demonstrated. Whenpneumatic actuator 52 is energized,displaceable rod 62 extends displacing secondtool body element 58 with respect to firsttool body element 51, to third plane P3. - Referring to
FIGS. 9 and 10 , pick andplace tool 50 is shown positioned on top ofjig platen 31 ofpositioning jig 30. As shown inFIG. 9 , pick andplace tool 50 is aligned with respect to positioningjig 30 by insertion ofalignment studs alignment apertures FIG. 9 ), are positioned between pick andplace tool 50 andpositioning jig 30.FIG. 9 showsvacuum tube 45 pneumatically connected tojig platen 31. Referring toFIG. 10 , pick andplace tool 50 is shown includingtool body 68 having firsttool body element 51 and secondtool body element 58. End E2 of strap S1 and end E4 of strap S2 are shown disposed between secondtool body element 58 andjig platen 31. -
FIG. 11 shows a detail side cutaway view of end E4 of strap S2 positioned in positioning detent 33D betweenbottom face 57 of secondtool body element 58 of pick andplace tool 50 and againstupper face 37 ofjig platen 31 ofpositioning jig 30. As pick andplace tool 50 is pressed againstjig platen 31, each pin of the pick and placetool pin arrays FIG. 5 ), and typified inFIG. 11 bypin 59, pierces through end E4 of strap S2, entering jigpin receiving aperture 36, one of the jig pin receiving apertures forming the plurality of jig pin receiving aperture arrays, 35A, 35B, 35C and 35D, (shown inFIG. 2 ). As each pin pierces through the strap, a compressive force is induced in the strap about each pin. With specific reference toFIG. 11 , by way of illustration, aspin 59 is forced through end E4 of strap S2, projecting into jigpin receiving aperture 36, first compressive force C1 is induced in strap S2 againstpin 59.FIG. 11 also showspin 59 attached to firsttool body element 51 and extending throughpin sheath aperture 71, typical of the plurality of pin sheath apertures forming the pinsheath aperture arrays FIG. 5 ). Also shown inFIG. 11 is moldpin receiving aperture 66. -
FIG. 12 shows strap S1 and S2 positioned againstbottom face 57 of secondtool body element 58 of pick andplace tool 50. As shown, end E1 of strap S1 is held in position by pick and placetool pin array 60A and end E2 of strap S1 is held in position by pick and place tool pin array 60B. Similarly, end E3 of strap S2 is held in position by pick and place tool pin array 60C and end E4 of strap S2 is held in position by pick and placetool pin array 60D. Compressive force C1 is induced in straps S1 and S2 against the pins of pick and placetool pin arrays pin 59, at the location at which the pins penetrate the straps. Also shown inFIG. 12 arealignment apertures -
FIGS. 13 and 17 show stationaryfirst mold section 20 for molding a plastic element at each end of a pair of straps S1 and S2 as shown inFIG. 17 .FIGS. 13, 14 and 17 show stationaryfirst mold section 20 includingfirst mold plate 21 havingface 29.FIGS. 13 and 17 show face 29 including a plurality ofpart positioning detents 22A, 22B, 22C and 22D, which provide locations at which parts are to be positioned. Contiguous to each of thepart positioning detents 22A, 22B, 22C and 22D aremold cavities First mold plate 21 includes a plurality of mold section penetration elements located onface 29. Each mold section penetration element includes a mold section pin array indicated by the by the dashed triangles, 25A, 25B, 25C and 25D, each mold section pin array including, in this case, three pins, typified inFIGS. 13 and 17 bypin 28. Referring toFIG. 13 ,first mold plate 21 also includes a plurality of pick-up pin receiving aperture arrays, shown by the by the dashed triangles, 27A, 27B, 27C and 27D, each mold pin receiving aperture array including in this case by three distinct pick-up pin receiving apertures, each typified inFIG. 13 by pick-uppin receiving aperture 26.FIGS. 13 and 17 show alignment studs place tool 50, as shown inFIGS. 14-16 , with stationaryfirst mold section 20 as discussed herein below. - Referring to
FIGS. 14 and 15 , pick andplace tool 50 is shown positioned in an interfacing relation againstface 29 offirst mold plate 21. As shown inFIG. 14 , pick andplace tool 50 is aligned with respect tofirst mold plate 21 of stationaryfirst mold section 20 by insertion ofalignment studs alignment apertures place tool 50 andfirst mold plate 21.FIGS. 15 and 16 show, end E2 of strap S1 and end E4 of strap S2 disposed between secondtool body element 58 andfirst mold plate 21 with ends E2 and E 4 extending into mold cavities 24B and 24D respectively. - As pick and
place tool 50 is pressed againstfirst mold plate 21, each pin of the pick and placetool pin arrays FIG. 5 ), typified inFIG. 15 bypin 59, pierces through the strap section entering one of the pick-up pin receiving apertures, 27A, 27B, 27C and 27D, (shown inFIG. 13 ), each pick-up pin receiving aperture typified inFIG. 15 by pick-uppin receiving aperture 26, shown inFIG. 15 . At the same time, as pick andplace tool 50 is pressed againstfirst mold plate 21, each pin of the moldsection pin arrays 25A, 25B, 25C and 25D, (shown inFIG. 13 ), typified inFIG. 15 bypin 28, pierces through the strap section entering one of the mold pin receiving apertures of the mold pin receivingaperture arrays 65A, 65B, 65C and 65D, (shown inFIG. 5 ), each mold pin receiving aperture typified inFIG. 15 by moldpin receiving aperture 66. With specific reference toFIG. 15 , and by way of illustration, aspin 59 pierces end E4 of strap S2 it projects into pick-uppin receiving aperture 26. Similarly, aspin 28, pierces end E4 of strap S2 it projects into moldpin receiving aperture 66.FIG. 15 also showspin 59 attached to firsttool body element 51 and extending throughpin sheath aperture 71. Also shown inFIG. 11 is moldpin receiving aperture 66. - Referring to
FIG. 16 , once strap S1 and S2 are positioned as shown inFIG. 15 ,actuator 52 of pick andplace tool 50 is energized extendingdisplaceable rod 62 thereby displacing secondtool body element 58 oftool body 68 with respect to firsttool body element 51. As secondtool body element 58 is displaced, each pin sheath aperture of the pinsheath aperture arrays FIG. 5 ), typified inFIG. 15 bypin sheath aperture 71 extends over the pin of the pick and placetool pin arrays FIG. 5 ), typified inFIG. 15 bypin 59, associated with a particular pin sheath aperture, releasing straps S1 and S2 from the pick and placetool pin arrays FIG. 5 ).FIG. 16 showsalignment studs tool body element 58 is displaced with respect to firsttool body element 51. With specific reference toFIG. 16 , and by way of illustration, as secondtool body element 58 is displaced with respect to firsttool body element 51 oftool body 68 bydisplaceable rod 62,pin sheath aperture 71 extends with respect to pin 59, releasing end E4 of strap S2 from pick andplace tool 50. When pick andplace tool 50 is moved away fromfirst mold plate 21, and referring toFIG. 17 , ends E1-E4 of straps S1 and S2 remain supported by moldsection pin arrays 25A, 25B, 25C and 25D, (shown inFIG. 13 ), each pin being typified inFIG. 17 bypin 28 which is shown projecting into moldpin receiving aperture 66. - Referring again to
FIG. 1 , once pick andplace tool 50 is moved away from stationaryfirst mold section 20, operation and extension of moveablesecond mold section 11 is initiated by operation ofpressurized fluid system 12 andram 14. Once moveablesecond mold section 11 and stationaryfirst mold section 20 are in contact,plastic injection system 16 is energized and, referring toFIGS. 1 and 15 , molten plastic, (not shown), is injected throughconduit 19 to themold cavities FIG. 13 . Following injection, and referring again toFIG. 1 , ram 14 retracts and moveablesecond mold section 11 is separated from stationaryfirst mold section 20. - It is to be understood that the invention is not limited to the embodiment shown and described above. It will be appreciated for instance that the transport means for movement of pick and
place tool 50 betweenpositioning jig 30 and stationaryfirst mold section 20 may include other means known to those skilled in the art including robotics or other mechanized means. Similarly, whereFIG. 1 depicts asingle positioning jig 30 it will be appreciated that two or more positioning jigs may be positioned about a turntable that allows parts to be placed of a positioning jig at a first station while pick andplace tool 50 is picking from another positioning jig located a second station accessible for instance by a robot. Additionally, while the specification and figures discuss a preferred embodiment wherein a part is transferred onto a stationaryfirst mold section 20 by pick andplace tool 50, it is conceivable that embodiments may exist wherein a part is transferred onto a movable mold section by pick andplace tool 50. Various other embodiments of the invention may be made and practiced without departing from the scope of the invention, as defined in the following claims.
Claims (20)
1. (canceled)
2. (canceled)
3. (canceled)
4. (canceled)
5. (canceled)
6. (canceled)
7. (canceled)
8. (canceled)
9. (canceled)
10. (canceled)
11. (canceled)
12. A mold section for an injection molding device, the mold section comprising a penetration element adapted to induce a compressive force in a part placed in the injection molding device, the compressive force being induced against the part penetration element, securing the part to the mold section.
13. The mold section of claim 12 wherein the penetration element further comprises a mold pin array attached to and extending from a face of the mold plate.
14. The mold section of claim 12 wherein the penetration element further comprises a mold pin array attached to and extending from a face of the mold plate, the mold pin array including two or more pins, each pin adapted penetrate the part and induce a compressive force by the part against the two or more pins of the mold pin array, securing the part to the mold plate.
15. The mold section of claim 12 wherein the part is held against the mold section in a selected part orientation.
16. The mold section of claim 13 wherein the part is held against the mold section in a selected part orientation.
17. The mold section of claim 14 wherein the part is held against the mold section in a selected part orientation.
18. The mold section of claim 12 further comprising a mold section adapted for use in a vertical injection molding device.
19. The mold section of claim 13 further comprising a mold section adapted for use in a vertical injection molding device.
20. The mold section of claim 14 further comprising a mold section adapted for use in a vertical injection molding device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/927,384 US20080056876A1 (en) | 2005-10-18 | 2007-10-29 | Injection molding system with part positioning jig and pick and place tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/253,926 US7484951B2 (en) | 2005-10-18 | 2005-10-18 | Injection molding system with part positioning jig and pick and place tool |
US11/927,384 US20080056876A1 (en) | 2005-10-18 | 2007-10-29 | Injection molding system with part positioning jig and pick and place tool |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/253,926 Division US7484951B2 (en) | 2005-10-18 | 2005-10-18 | Injection molding system with part positioning jig and pick and place tool |
Publications (1)
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US20080056876A1 true US20080056876A1 (en) | 2008-03-06 |
Family
ID=37948416
Family Applications (2)
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US11/253,926 Expired - Fee Related US7484951B2 (en) | 2005-10-18 | 2005-10-18 | Injection molding system with part positioning jig and pick and place tool |
US11/927,384 Abandoned US20080056876A1 (en) | 2005-10-18 | 2007-10-29 | Injection molding system with part positioning jig and pick and place tool |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US11/253,926 Expired - Fee Related US7484951B2 (en) | 2005-10-18 | 2005-10-18 | Injection molding system with part positioning jig and pick and place tool |
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US (2) | US7484951B2 (en) |
AU (1) | AU2006304577A1 (en) |
WO (1) | WO2007047768A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12005491B2 (en) | 2020-01-31 | 2024-06-11 | Howmedica Osteonics Corp. | Injection molding feedstock delivery system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US10661492B2 (en) | 2017-11-17 | 2020-05-26 | Purple Innovation, Llc | Molding systems, mold extractor systems, and related methods |
CN117020997B (en) * | 2023-10-09 | 2024-02-23 | 沧州东盛塑料有限公司 | Accurate clamping device is made to high temperature resistant plastic products |
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Also Published As
Publication number | Publication date |
---|---|
WO2007047768A2 (en) | 2007-04-26 |
WO2007047768A3 (en) | 2007-07-05 |
US20070087077A1 (en) | 2007-04-19 |
US7484951B2 (en) | 2009-02-03 |
AU2006304577A1 (en) | 2007-04-26 |
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