CN106863723B - The electronic injection unit of injection molded - Google Patents

The electronic injection unit of injection molded Download PDF

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Publication number
CN106863723B
CN106863723B CN201710145817.1A CN201710145817A CN106863723B CN 106863723 B CN106863723 B CN 106863723B CN 201710145817 A CN201710145817 A CN 201710145817A CN 106863723 B CN106863723 B CN 106863723B
Authority
CN
China
Prior art keywords
injection
screw rod
assembly
toothed belt
belt transmission
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.)
Expired - Fee Related
Application number
CN201710145817.1A
Other languages
Chinese (zh)
Other versions
CN106863723A (en
Inventor
余先涛
屠梦莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Technology WUT
Original Assignee
Wuhan University of Technology WUT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN201710145817.1A priority Critical patent/CN106863723B/en
Publication of CN106863723A publication Critical patent/CN106863723A/en
Application granted granted Critical
Publication of CN106863723B publication Critical patent/CN106863723B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/461Injection of measured doses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76003Measured parameter
    • B29C2945/76006Pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76595Velocity

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of electronic injection units of injection molded, including ejecting mechanism, metrological service and seat driving and reversing mechanism;Ejecting mechanism is made of injection linear guide, injection ballscrew nut fitting, the first toothed belt transmission, injection servo motor;Metrological service is made of metering servo motor, injection measure motor retarder, the second toothed belt transmission, screw rod connecting shaft, screw rod and screw rod thrust pickup;Seat driving and reversing mechanism by injection assembly elevating motor, project assembly lifting retarder, third toothed belt transmission, project assembly elevating screw pair of nut, project assembly mounting plate, project assembly line slideway auxiliary and project assembly lifting limit sensors form.The issuing velocity of the electronic injection unit of the present invention is up to 300mm/s, and noise is small, energy saving when operation, and equipment size is small.

Description

The electronic injection unit of injection molded
Technical field
The present invention relates to injection molding machine technical fields, more specifically to a kind of electronic injection unit of injection molded.
Background technique
The molding process of general screw injection molding machine is: granular or powdered plastic being added in barrel first, and leads to The rotation and the heating of machine barrel outer wall for crossing screw rod make plastics become molten condition, and then machine carries out molding and injection seat Forward, makes Nozzle is adjacent to the pouring head of mold, is then passed through pressure oil to injection cylinder, pushes ahead screw rod, thus with very high pressure and Faster speed injects melt in the lower Guan Bi mould of temperature, keeps (also known as pressure maintaining), cold by certain time and pressure But, make its curing molding, taking-up product can be opened.
By the way of hydraulic-driven, every dynamic technique parameter is changed traditional hydraulic injection molding machine by hydraulic oil temperature Influence, be easy to happen fluctuation.And the asynchronous machine of squirrel-cage induction is used, rotary inertia is big, system low-response, and noise Larger, enterprise work environment cannot improve.In addition rise to national strategy with energy-saving, injection machine energy-saving problem also by Extensive concern.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of injection molded electronic injection unit.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of electronic injection list of injection molded Member, including ejecting mechanism, metrological service and seat driving and reversing mechanism;The ejecting mechanism is by injection linear guide, injection ball screw Pair of nut, the first toothed belt transmission project servo motor composition, wherein the injection servo motor and the first toothed belt transmission Small pulley be connected, the big belt wheel of first toothed belt transmission is connected with the nut of injection ballscrew nut fitting, the spiral shell Mother rotates when projecting, and the screw rod for projecting ballscrew nut fitting is fixed to realize that projecting screw rod does straight reciprocating motion; The metrological service is by metering servo motor, injection measure motor retarder, the second toothed belt transmission, screw rod connecting shaft, screw rod It is formed with screw rod thrust pickup, wherein the metering servo motor is connect with measure motor retarder is projected, the injection meter Amount motor reducer is connected by the second toothed belt transmission with screw rod connecting shaft, and the screw rod connecting shaft is connected to realize with screw rod The linear motion of rotary motion and the injection of screw rod;Seat driving and reversing mechanism is subtracted by injection assembly elevating motor, injection assembly lifting Fast device, third toothed belt transmission project assembly elevating screw pair of nut, project assembly mounting plate, project assembly line slideway auxiliary It is formed with assembly lifting limit sensors are projected, wherein the injection assembly elevating motor is slowed down by projecting assembly lifting Device is connected to one end of third toothed belt transmission, the other end and injection assembly elevating screw nut of the third toothed belt transmission Secondary screw rod is connected, and the nut for projecting assembly elevating screw pair of nut is fixedly connected with assembly mounting plate is projected to realize and penetrate The elevating movement of assembly out.
In the above scheme, the screw rod thrust pickup, injection assembly lifting limit sensors are all made of weighing type power Sensor is simultaneously installed between the support thrust bearing of screw rod connecting shaft, anti-in measure control for controlling injection servo motor The size of power is projected when projecting to the speed and angle of rotation and monitoring.
Implement the electronic injection unit of injection molded of the present invention, has the advantages that
The issuing velocity of the electronic injection unit of the present invention is up to 300mm/s, and noise is small, energy saving when operation, and equipment size is small.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is a kind of structural schematic diagram of the electronic injection unit of injection molded;
Fig. 2 is structural schematic diagram of the Fig. 1 along the direction A-A.
In figure: 1- screw rod, 2- screw rod connecting shaft, the second toothed belt transmission of 3-, 4- project measure motor retarder, 5- metering Servo motor, 6- project servo motor, the first toothed belt transmission of 7-, and 8- projects ballscrew nut fitting, and 9- injection is always in line Guideway, 10- project assembly mounting plate, and 11- projects assembly elevating screw pair of nut, and 12- projects assembly elevating motor, 13- It projects assembly and goes up and down retarder, 14- third toothed belt transmission.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail A specific embodiment of the invention.
As shown in Figs. 1-2, the present invention provides a kind of injection molded electronic injection unit, including ejecting mechanism, dosing machine Structure and seat driving and reversing mechanism.
Ejecting mechanism is by injection linear guide, injection ballscrew nut fitting 8, the first toothed belt transmission 7, injection servo electricity Machine 6 forms, wherein and it projects servo motor 6 and is connected with the small pulley of the first toothed belt transmission 7, the big band of the first toothed belt transmission 7 It takes turns and is connected with the nut for projecting ballscrew nut fitting 8, nut is rotated when projecting, and projects the screw rod of ballscrew nut fitting 8 It fixes to realize that projecting screw rod does straight reciprocating motion.
Metrological service is connected by metering servo motor 5, injection measure motor retarder 4, the second toothed belt transmission 3, screw rod Axis 2, screw rod 1 and screw rod thrust pickup composition, wherein metering servo motor 5 is connect with measure motor retarder 4 is projected, and is penetrated Measure motor retarder 4 is connected by the second toothed belt transmission 3 with screw rod connecting shaft 2 out, and screw rod connecting shaft 2 is connected with screw rod 1 To realize the linear motion of rotary motion and the injection of screw rod 1.
Seat driving and reversing mechanism goes up and down retarder 13, third toothed belt transmission by injection assembly elevating motor 12, injection assembly 14, assembly elevating screw pair of nut 11 is projected, assembly mounting plate 10 is projected, project assembly line slideway auxiliary 9 and projects assembly liter Lower limit level sensor composition, wherein project assembly elevating motor 12 by projecting assembly lifting retarder 13 and be connected to third One end of toothed belt transmission 14, the other end of third toothed belt transmission 14 and the screw rod phase for projecting assembly elevating screw pair of nut 11 Even, the nut for projecting assembly elevating screw pair of nut 11 is fixedly connected with assembly mounting plate 10 is projected to realize the liter for projecting assembly Drop movement.
In the present embodiment, screw rod thrust pickup, injection assembly lifting limit sensors are all made of weighing type power sensing Device is simultaneously installed between the support thrust bearing of screw rod connecting shaft 2, reversed in measure control for controlling injection servo motor 6 The size of power is projected in the speed and angle of rotation and monitoring when projecting.
The working time that servo motor 6 is projected when in the present embodiment, due to projecting is short, projects 6 driving force of servo motor Square is big, and therefore, when servo motor 6 is projected in selection, the main maximum output torque for considering servomotor avoids servomotor Power selection is excessive to cause that cost is excessively high and system bulk is excessive.
When the invention works, it projects assembly elevating motor 12 and first passes through the injection assembly lifting deceleration of retarder 13, then lead to It crosses third toothed belt transmission 14 and drives the screw rod rotation for projecting assembly elevating screw pair of nut 11, screw rod rotation at this time drives nut Linear motion, the injection assembly mounting plate 10 being connected with nut move along a straight line on projecting assembly line slideway auxiliary 9, make to penetrate Mouth drops to the feed opening of mold.After nozzle reaches designated position, metering servo motor 5 works, and is subtracted by projecting measure motor Fast device 4 slows down, then drives screw rod 1 to rotate by the second toothed belt transmission 3 and screw rod connecting shaft 2, the row rotated by screw rod 1 The feeding quantity in process control each period.In the process due to constantly there is melt to enter barrel front end, forces screw rod 1 to retreat, make 1 pressure rise of screw rod, provides the back pressure of charging, guarantees the metering accuracy of charging by screw rod thrust pickup monitoring back pressure, together When this back pressure control project servo motor 6 reversely rotate, first pass through the first toothed belt transmission 7 drive project ballscrew nut fitting 8 nut rotation, the fixed screw rod of nut location moves along a straight line at this time, retreats screw rod 1 under suitable back pressure to setting Position.After the completion of charging, metering servo motor 5 stops, and projects servo motor 6 and reversely rotates, and first passes through the first synchronous belt biography Dynamic 7 drive the nut rotation for projecting ballscrew nut fitting 8, and nut rotates at this time and screw rod rotation is restrained, does screw rod directly Line movement, so that the screw rod 1 for being connected in and projecting in linear guide be driven to move.Screw rod 1 is straight with certain speed to mold direction Line movement promotes melting sizing material to enter die cavity within a certain period of time, and screw rod 1 stays for some time after reaching the limit of position, makes molten Glue cooling and shaping in mold cavity completes an ejection formation movement.Hereafter, metering servo motor 5 acts, and starts next time Project circulation.It when needing to lift nozzle, projects assembly elevating motor 12 and acts, make to project the position that assembly rises to setting.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form, all of these belong to the protection of the present invention.

Claims (2)

1. a kind of electronic injection unit of injection molded, including ejecting mechanism, metrological service and seat driving and reversing mechanism, feature exist In,
The ejecting mechanism is watched by injection linear guide, injection ballscrew nut fitting (8), the first toothed belt transmission (7), injection Taking motor (6) composition, wherein injection servo motor (6) is connected with the small pulley of the first toothed belt transmission (7), and described the The big belt wheel of one toothed belt transmission (7) is connected with the nut for projecting ballscrew nut fitting (8), and the nut is revolved when projecting Turn, the screw rod for projecting ballscrew nut fitting (8) is fixed to realize that projecting screw rod does straight reciprocating motion;
The metrological service is by metering servo motor (5), injection measure motor retarder (4), the second toothed belt transmission (3), spiral shell Bar connecting shaft (2), screw rod (1) and screw rod thrust pickup composition, wherein the metering servo motor (5) and injection metering electricity Machine retarder (4) connection, the injection measure motor retarder (4) pass through the second toothed belt transmission (3) and screw rod connecting shaft (2) It is connected, the screw rod connecting shaft (2) is connected to realize the linear motion of rotary motion and the injection of screw rod (1) with screw rod (1);
Seat driving and reversing mechanism goes up and down retarder (13), third toothed belt transmission by injection assembly elevating motor (12), injection assembly (14), assembly elevating screw pair of nut (11) are projected, assembly mounting plate (10) is projected, projects assembly line slideway auxiliary (9) and penetrate Assembly lifting limit sensors composition out, wherein the injection assembly elevating motor (12) is slowed down by projecting assembly lifting Device (13) is connected to one end of third toothed belt transmission (14), the other end and injection assembly of the third toothed belt transmission (14) The screw rod of elevating screw pair of nut (11) is connected, the nut for projecting assembly elevating screw pair of nut (11) and injection assembly peace Loading board (10) is fixedly connected to realize the elevating movement for projecting assembly.
2. the electronic injection unit of injection molded according to claim 1, which is characterized in that the screw rod thrust sensing Device, injection assembly lifting limit sensors are all made of weighing type force snesor and are installed on the support thrust of screw rod connecting shaft (2) Between bearing, projected for control to project servo motor (6) speed for reversely rotating in measure control and angle and monitor When project power size.
CN201710145817.1A 2017-03-13 2017-03-13 The electronic injection unit of injection molded Expired - Fee Related CN106863723B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710145817.1A CN106863723B (en) 2017-03-13 2017-03-13 The electronic injection unit of injection molded

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Application Number Priority Date Filing Date Title
CN201710145817.1A CN106863723B (en) 2017-03-13 2017-03-13 The electronic injection unit of injection molded

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CN106863723A CN106863723A (en) 2017-06-20
CN106863723B true CN106863723B (en) 2019-03-15

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110154310A (en) * 2019-06-27 2019-08-23 富强鑫(宁波)机器制造有限公司 Multicomponent injection unit centre distance regulating device and its adjusting method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11115006A (en) * 1997-10-17 1999-04-27 Toyo Mach & Metal Co Ltd Electric motor driven injection molding machine
CN104053532A (en) * 2012-01-12 2014-09-17 东洋机械金属株式会社 Injection molding machine
CN204149426U (en) * 2014-09-27 2015-02-11 韶关亿利达机械有限公司 A kind of servo-electric injection machine
CN106476227A (en) * 2015-08-31 2017-03-08 住友重机械工业株式会社 Injection device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3794252B2 (en) * 2000-07-26 2006-07-05 東芝機械株式会社 Electric injection molding machine and injection control method for electric injection molding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11115006A (en) * 1997-10-17 1999-04-27 Toyo Mach & Metal Co Ltd Electric motor driven injection molding machine
CN104053532A (en) * 2012-01-12 2014-09-17 东洋机械金属株式会社 Injection molding machine
CN204149426U (en) * 2014-09-27 2015-02-11 韶关亿利达机械有限公司 A kind of servo-electric injection machine
CN106476227A (en) * 2015-08-31 2017-03-08 住友重机械工业株式会社 Injection device

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Granted publication date: 20190315

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