CN110722757A - Novel die clamping mechanism and control method - Google Patents
Novel die clamping mechanism and control method Download PDFInfo
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- CN110722757A CN110722757A CN201911119454.XA CN201911119454A CN110722757A CN 110722757 A CN110722757 A CN 110722757A CN 201911119454 A CN201911119454 A CN 201911119454A CN 110722757 A CN110722757 A CN 110722757A
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- plate
- die
- mold
- mould
- connecting plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 67
- 230000005611 electricity Effects 0.000 claims abstract description 38
- 230000009471 action Effects 0.000 claims abstract description 8
- 241001133184 Colletotrichum agaves Species 0.000 claims abstract description 4
- 230000005684 electric field Effects 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000004033 plastic Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Images
Classifications
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/7653—Measuring, controlling or regulating mould clamping forces
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76702—Closure or clamping device
- B29C2945/76709—Closure or clamping device clamping or closing drive means
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a novel die-closing mechanism and a control method, wherein the die-closing mechanism comprises a die front plate, a die rear plate and a moving device, the die front plate and the die rear plate are respectively fixed on a front die connecting plate and a rear die connecting plate, the rear die connecting plate is fixed on the moving device, the moving device displaces to drive the die rear plate on the rear die connecting plate and the die front plate to realize die-closing and die-opening actions, the die-closing mechanism also comprises a static electricity generating device, a front die static electricity pipeline and a rear die static electricity pipeline, and the static electricity generating device is connected with the die front plate or/and the front die connecting plate through the front die static electricity pipeline; the static generating device is connected with the die back plate or/and the die connecting plate through a back die static pipeline. The novel die closing mechanism provided by the invention uses electrostatic force to provide die opening and closing force, the die opening and closing force is realized by adjusting current, the novel die closing mechanism is simple and easy to control, is not limited by a mechanical structure, and is suitable for precise die opening and closing equipment; the control method of the die closing mechanism is precise in control, the die opening and closing pressure is precise, and the die closing and opening force is adjustable.
Description
Technical Field
The invention relates to the field of injection molding machines, in particular to a novel mold clamping mechanism and a control method.
Background
The mold closing mechanism used in the mainstream market of the injection molding machine is a toggle rod type mold closing mechanism, mold opening and closing force is provided by amplifying an oil pressure or a mechanical force through a toggle rod, the mold closing mechanism has the advantages that the structure is relatively simple, but the mold opening and closing force is greatly influenced by the mechanical structure of the toggle rod and is difficult to precisely control, if the operation time is long, mechanical parts such as the toggle rod, a bearing and the like are abraded, the mold opening and closing force is more difficult to control, and the structural defect is serious in some occasions needing high-precision control.
Therefore, how to solve the above problems is a problem to be solved urgently.
Disclosure of Invention
Aiming at the technical problems, the invention provides a novel die closing mechanism which uses electrostatic force to provide die opening and closing force, is realized by adjusting current, is simple and easy to control, is not limited by a mechanical structure, and is suitable for precise die opening and closing equipment.
The invention aims to solve another technical problem of providing a control method of a novel die assembly mechanism, which has the advantages of simple movement, precise control and precise die opening and closing pressure.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a novel mold closing mechanism and a control method comprise a mold front plate, a mold rear plate and a moving device, wherein the mold front plate and the mold rear plate are respectively fixed on a front mold connecting plate and a rear mold connecting plate, the rear mold connecting plate is fixed on the moving device, the moving device displaces to drive the mold rear plate on the rear mold connecting plate and the mold front plate to realize mold closing and opening actions; the static generating device is connected with the die back plate or/and the die connecting plate through a back die static pipeline. The electrostatic generator is arranged to generate charges with different or same polarity on the front mold plate and the rear mold plate, so that mutual attraction or repulsion electric field force closing or opening is generated, the mold is simple and easy to control, and the whole structure is simple.
The static electricity generating device further comprises a static electricity emitting rod and a direct-current high-voltage power supply, wherein the direct-current high-voltage power supply provides positive or negative voltage for the static electricity emitting rod, so that the static electricity emitting rod emits positive or negative ions, and different static electricity emitting rods are respectively connected with the front-mode static pipeline and the rear-mode static pipeline.
Further locking mechanism includes supporting platform, and the mould front bezel is fixed on supporting platform, and mobile device swing joint is on supporting platform. The supporting platform is arranged to ensure the stability and reliability of the mechanism in the process of closing and opening the mold.
The die closing mechanism comprises a die closing front plate, a die closing rear plate and a pull rod, the middle of the die closing front plate and the middle of the die closing rear plate are connected and fixed on the supporting platform through the pull rod, and a front die connecting plate is fixed with the die closing front plate.
The further moving device comprises a movable plate, a ball screw mechanism, a guide rail sliding block mechanism and a servo motor, wherein the rear die connecting plate is fixed on the movable plate, the guide rail sliding block mechanism is fixed on the supporting platform, the movable plate is fixed with a sliding block of the guide rail sliding block mechanism, the servo motor is fixed on the die assembly rear plate and is in shaft connection with the ball screw mechanism, and the ball screw mechanism is connected with the movable plate. The ball screw mechanism, the guide rail slide block mechanism and the servo motor are used, so that the action of closing and opening the mold is reliable, the movement precision is improved, the precision of closing and opening the mold is ensured, and the quality of a mold forming product is improved.
A control method of a novel mold clamping mechanism comprises the following steps:
the mould is closed, the static generating device conveys charges with one polarity to the front mould plate or/and the front mould connecting plate through the front mould static pipe, the static generating device conveys charges with the opposite polarity to the rear mould plate or/and the rear mould connecting plate through the rear mould static pipe, and the front mould plate and the rear mould plate are attached together by the electric field force generated by the mutual attraction of the positive charges and the negative charges;
and opening the mold, wherein the electrostatic generating device conveys charges with one polarity to the front mold plate or/and the front mold connecting plate through the front mold electrostatic pipeline, the electrostatic generating device conveys charges with the same polarity to the rear mold plate or/and the rear mold connecting plate through the rear mold electrostatic pipeline, and the electric field force generated by mutual attraction and repulsion of the charges with the same polarity separates the front mold plate from the rear mold plate.
The magnitude of mold closing and opening force is further adjusted by adjusting the quantity of the electric charges conveyed by the static electricity generating device. The size of the mold closing and opening force is adjusted according to the size of the mold and the characteristic adaptability of the product, so that the precise control is realized.
Compared with the prior art, the invention has the following technical advantages:
1. the mold closing mechanism is provided with an electrostatic generator, the electrostatic force is used for providing mold opening and closing force, the mold opening and closing force is realized by adjusting current, the mold opening and closing mechanism is simple and easy to control, is not limited by a mechanical structure, has a simple integral structure and is suitable for precise mold opening and closing equipment;
2. the control method of the mold closing mechanism is precise in control and accurate in mold opening and closing pressure, and the mold closing and opening pressure can be adjusted adaptively according to the size of a mold and the characteristics of a product.
Drawings
FIG. 1 is a structural view of a clamping mechanism of the present invention;
FIG. 2 is a schematic view of the attachment of a mold front plate to a mold back plate;
FIG. 3 is a schematic illustration of a back mold connecting plate and a mold back plate and a front mold connecting plate and a mold front plate providing a mold clamping force electrostatically;
FIG. 4 is a schematic view of a rear mold connecting plate and a front mold supporting stationary plate providing a mold clamping force electrostatically;
FIG. 5 is a schematic view of a mold front plate and a mold back plate providing a mold clamping force electrostatically;
FIG. 6 is a schematic view of a mold cavity formed by molten gum material entering a front mold plate and a back mold plate;
FIG. 7 is a schematic view of a mold front plate and a mold back plate electrostatically providing a mold opening force;
fig. 8 is a schematic view showing the removal of the mold-opened product.
In the figure: the device comprises a supporting platform 1, a linear guide rail 2, a guide rail slide block 3, a pull rod 4, a die assembly rear plate 5, a servo motor 6, a ball screw 7, a screw nut 8, a movable plate 9, a rear die connecting plate 10, a die rear plate 11, a die front plate 12, a front die connecting plate 13, a die assembly front plate 14, a front die electrostatic pipeline 15, an electrostatic generating device 16, a rear die electrostatic pipeline 17, a plastic product 18, a melt adhesive cylinder 19, a melt adhesive material 20, an injection molding screw 21, a moving device A, a ball screw mechanism B and a guide rail slide block mechanism C.
Detailed Description
The invention will be described in further detail below with reference to embodiments shown in the drawings.
As shown in fig. 1 to 8, the novel clamping mechanism of the present invention includes a front mold plate 12, a rear mold plate 11, and a moving device a, wherein the front mold plate 12 and the rear mold plate 11 are respectively fixed on a front mold connecting plate 13 and a rear mold connecting plate 10, an edge surface of the front mold plate 12 and a plane of the front mold connecting plate 13 are on the same plane, a plane of the rear mold connecting plate 10 and an edge surface of the mold 11 are on the same plane, the rear mold connecting plate 10 is fixed on the moving device a, the moving device a displaces to drive the rear mold plate 11 on the rear mold connecting plate 10 and the front mold plate 12 to realize a clamping and opening action, the clamping mechanism further includes a static electricity generating device 16, a front mold static electricity pipeline 15 and a rear mold static electricity pipeline 17, the static electricity generating device 16 is connected to the front mold plate 12 or/and the front mold connecting plate 13 through the front; the static electricity generating device 16 is connected with the die back plate 11 or/and the die connecting plate 10 through a die static electricity pipeline 17.
As shown in fig. 1 to 8, the static electricity generating device 16 includes a static electricity emitting rod and a dc high voltage power supply, the dc high voltage power supply provides positive or negative voltage to the static electricity emitting rod, so that the static electricity emitting rod emits positive or negative ions, and different static electricity emitting rods are respectively connected to the front mold static pipe 15 and the rear mold static pipe 17.
As shown in fig. 1, the mold clamping mechanism includes a supporting platform 1, a mold front plate 12 fixed on the supporting platform 1, and a moving device a movably connected to the supporting platform 1.
As shown in fig. 1, the mold clamping mechanism includes a mold clamping front plate 14, a mold clamping rear plate 5, and tie bars 4, the mold clamping front plate 14 and the mold clamping rear plate 5 are connected and fixed to the support platform 1 through the tie bars 4, and a front mold connecting plate 13 is fixed to the mold clamping front plate 14.
As shown in fig. 1, the moving device a includes a moving plate 9, a ball screw mechanism B, a guide slider mechanism C and a servo motor 6, the rear mold connecting plate 10 is fixed on the moving plate 9, the guide slider mechanism C is fixed on the supporting platform 1, the moving plate 9 is fixed with a slider of the guide slider mechanism C, the servo motor 6 is fixed on the mold clamping rear plate 5 and is coupled to the ball screw mechanism B, and the ball screw mechanism B is connected to the moving plate 9. The ball screw mechanism B comprises a ball screw 7 and a screw nut 8, the servo motor 6 is coupled with the ball screw 7, the screw nut 8 is fixed on a movable plate 9, and the ball screw 7 penetrates through the movable plate 9 to be matched with the screw nut 8. The guide rail sliding block mechanism C comprises a linear guide rail 2 and a guide rail sliding block 3, the linear guide rail 2 is fixed on the supporting platform 1, and the movable plate 9 is fixed on the guide rail sliding block 3 and can slide along the linear guide rail 2.
The control method of the novel mold clamping mechanism comprises the following steps:
the mould is closed, the static electricity generating device 16 transmits charges with one polarity to the front mould plate 12 or/and the front mould connecting plate 13 through the front mould static pipeline 15, the static electricity generating device 16 transmits charges with the opposite polarity to the back mould plate 11 or/and the back mould connecting plate 10 through the back mould static pipeline 17, and the front mould plate 12 and the back mould plate 11 are attached together by the electric field force generated by the mutual attraction of the positive charges and the negative charges;
and opening the mold, wherein the static electricity generating device 16 transmits charges with one polarity to the front mold plate 12 or/and the front mold connecting plate 13 through the front mold static pipeline 15, the static electricity generating device 16 transmits charges with the same polarity to the rear mold plate 11 or/and the rear mold connecting plate 10 through the rear mold static pipeline 17, and the electric field force generated by mutual attraction and repulsion of the charges with the same polarity separates the front mold plate 12 from the rear mold plate 11.
In the method for controlling the mold clamping mechanism, during mold clamping, the servo motor 6 drives the ball screw 7 to rotate, so as to push the screw nut 8 and the movable plate 9 with the rear mold connecting plate 10 and the mold rear plate 11 to move towards the mold front plate 12 until the mold rear plate 11 abuts against the mold front plate 12, as shown in fig. 2.
The static electricity generating device 16 conveys positive charges to the front mold plate 12 through the front mold static pipeline 15, the static electricity generating device 16 conveys negative charges to the rear mold plate 11 through the rear mold static pipeline 17, high-pressure mold clamping force is generated under the action of electric field force of mutual attraction of the positive charges and the negative charges, the magnitude of the high-pressure mold clamping force is adjusted through the quantity of the charges conveyed by the static electricity generating device 16, and the front mold plate 12 and the rear mold plate 11 are tightly attached together.
After the high-pressure mold closing is completed, the injection screw 21 injects the molten rubber 20 in the molten rubber cylinder 19 into the cavity formed by the mold back plate 11 and the mold front plate 12 to obtain the plastic product 18, as shown in fig. 6.
After the plastic product 18 is cooled and shaped, the static electricity generating device 16 transmits positive charges to the front mold plate 12 through the front mold static pipeline 15, the static electricity generating device 16 also transmits positive charges to the rear mold plate 11 through the rear mold static pipeline 17, high-pressure mold opening force is generated under the action of mutual repulsive electric field force of the charges in the same direction, the magnitude of the high-pressure mold opening force is adjusted through the quantity of the charges transmitted by the static electricity generating device 16, and the front mold plate 12 and the rear mold plate 11 are separated, as shown in fig. 7.
After the high-voltage die opening is completed, the electrostatic generating device 16 extracts charges on the rear die 11 and the front die 12 through the front die electrostatic pipeline 15 and the rear die electrostatic pipeline 17, the servo motor 6 drives the ball screw 7 to rotate, the die rear plate 11 is driven by the screw nut 8 to move towards the direction far away from the die front plate 12, the plastic product 18 drops, and the action is completed, as shown in fig. 8.
In summary, the present invention has no doubt as to its practical applicability as described in the specification and drawings. The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; those skilled in the art should understand that they can easily make various changes and modifications to the disclosed embodiments without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a novel locking mechanism, includes mould front bezel (12), mould back plate (11) and mobile device (A), and mould front bezel (12) and mould back plate (11) are fixed respectively on front mould connecting plate (13) and back mould connecting plate (10), and back mould connecting plate (10) are fixed on mobile device (A), and mould back plate (11) on mobile device (A) displacement drive back mould connecting plate (10) realize compound die opening action with mould front bezel (12), its characterized in that: the clamping mechanism further comprises a static electricity generating device (16), a front mould static pipeline (15) and a rear mould static pipeline (17), wherein the static electricity generating device (16) is connected with the front mould plate (12) or/and the front mould connecting plate (13) through the front mould static pipeline (15); the static generating device (16) is connected with the die back plate (11) or/and the die connecting plate (10) through a back die static pipeline (17).
2. The novel clamping mechanism as claimed in claim 1, wherein the electrostatic generator (16) comprises an electrostatic emission rod and a dc high voltage power supply, the dc high voltage power supply provides positive or negative voltage to the electrostatic emission rod, so that the electrostatic emission rod emits positive or negative ions, and different electrostatic emission rods are respectively connected to the front mold electrostatic pipeline (15) and the rear mold electrostatic pipeline (17).
3. A novel clamping mechanism as claimed in claim 1, characterized in that the clamping mechanism comprises a support platform (1), the front mold plate (12) is fixed on the support platform (1), and the moving device (a) is movably connected to the support platform (1).
4. A novel clamping mechanism as claimed in claim 3, wherein the clamping mechanism comprises a front clamping plate (14), a rear clamping plate (5) and a pull rod (4), the front clamping plate (14) and the rear clamping plate (5) are connected and fixed on the supporting platform (1) through the pull rod (4), and the front mould connecting plate (13) is fixed with the front clamping plate (14).
5. The novel mold clamping mechanism as claimed in claim 4, wherein the moving device (A) comprises a movable plate (9), a ball screw mechanism (B), a guide slider mechanism (C) and a servo motor (6), the rear mold connecting plate (10) is fixed on the movable plate (9), the guide slider mechanism (C) is fixed on the support platform (1), the movable plate (9) is fixed with a slider of the guide slider mechanism (C), the servo motor (6) is fixed on the mold clamping rear plate (5) and is in shaft connection with the ball screw mechanism (B), and the ball screw mechanism (B) is connected with the movable plate (9).
6. A method for controlling a novel clamping mechanism as claimed in any one of claims 1 to 5, which is characterized by comprising the following steps:
the mould is closed, the static electricity generating device (16) conveys charges with one polarity to the front mould plate (12) or/and the front mould connecting plate (13) through the front mould static pipeline (15), the static electricity generating device (16) conveys charges with the other polarity opposite to the front mould plate (11) or/and the rear mould connecting plate (10) through the rear mould static pipeline (17), and the front mould plate (12) and the rear mould plate (11) are attached together by electric field force generated by mutual attraction of positive and negative charges;
and opening the mold, wherein the static electricity generating device (16) conveys charges with one polarity to the front mold plate (12) or/and the front mold connecting plate (13) through the front mold static pipeline (15), the static electricity generating device (16) conveys charges with the same polarity to the rear mold plate (11) or/and the rear mold connecting plate (10) through the rear mold static pipeline (17), and the charges with the same polarity mutually attract and repel to generate an electric field force to separate the front mold plate (12) from the rear mold plate (11).
7. The method of claim 6, wherein the magnitude of the mold clamping and opening force is adjusted by adjusting the amount of charge delivered by the electrostatic generator (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911119454.XA CN110722757A (en) | 2019-11-15 | 2019-11-15 | Novel die clamping mechanism and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911119454.XA CN110722757A (en) | 2019-11-15 | 2019-11-15 | Novel die clamping mechanism and control method |
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| Publication Number | Publication Date |
|---|---|
| CN110722757A true CN110722757A (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911119454.XA Pending CN110722757A (en) | 2019-11-15 | 2019-11-15 | Novel die clamping mechanism and control method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05220798A (en) * | 1992-02-17 | 1993-08-31 | Toshiba Mach Co Ltd | Mold clamping device for injection molding machine |
| JP2001315130A (en) * | 2000-05-02 | 2001-11-13 | Meiki Co Ltd | Mold clamping apparatus and control method therefor |
| US20040084809A1 (en) * | 2002-11-05 | 2004-05-06 | Vanderploeg James A. | Side shuttle apparatus and method for an injection molding machine |
| DE102006005288A1 (en) * | 2006-02-06 | 2007-01-18 | Siemens Ag | Tool clamping mechanism for plastics injection molding machine has magnets around tool cavity in one tool half and magnetic second tool half which is attracted towards first tool half by magnetic force |
| JP2008062456A (en) * | 2006-09-06 | 2008-03-21 | Kojima Press Co Ltd | Structure for mounting mold on mounting plate |
| CN204029730U (en) * | 2011-09-27 | 2014-12-17 | 西门子公司 | Contactor |
| CN211221912U (en) * | 2019-11-15 | 2020-08-11 | 东华机械有限公司 | Novel die clamping mechanism |
-
2019
- 2019-11-15 CN CN201911119454.XA patent/CN110722757A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05220798A (en) * | 1992-02-17 | 1993-08-31 | Toshiba Mach Co Ltd | Mold clamping device for injection molding machine |
| JP2001315130A (en) * | 2000-05-02 | 2001-11-13 | Meiki Co Ltd | Mold clamping apparatus and control method therefor |
| US20040084809A1 (en) * | 2002-11-05 | 2004-05-06 | Vanderploeg James A. | Side shuttle apparatus and method for an injection molding machine |
| DE102006005288A1 (en) * | 2006-02-06 | 2007-01-18 | Siemens Ag | Tool clamping mechanism for plastics injection molding machine has magnets around tool cavity in one tool half and magnetic second tool half which is attracted towards first tool half by magnetic force |
| JP2008062456A (en) * | 2006-09-06 | 2008-03-21 | Kojima Press Co Ltd | Structure for mounting mold on mounting plate |
| CN204029730U (en) * | 2011-09-27 | 2014-12-17 | 西门子公司 | Contactor |
| CN211221912U (en) * | 2019-11-15 | 2020-08-11 | 东华机械有限公司 | Novel die clamping mechanism |
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Application publication date: 20200124 |