CN102632595A - Clamping mechanism of injection molding machine - Google Patents
Clamping mechanism of injection molding machine Download PDFInfo
- Publication number
- CN102632595A CN102632595A CN2011103295256A CN201110329525A CN102632595A CN 102632595 A CN102632595 A CN 102632595A CN 2011103295256 A CN2011103295256 A CN 2011103295256A CN 201110329525 A CN201110329525 A CN 201110329525A CN 102632595 A CN102632595 A CN 102632595A
- Authority
- CN
- China
- Prior art keywords
- clasp nut
- clamping
- cylinder
- mentioned
- opens
- Prior art date
Links
- 238000001746 injection moulding Methods 0.000 title abstract description 5
- 239000003921 oils Substances 0.000 claims abstract description 38
- 230000002093 peripheral Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 21
- 239000004698 Polyethylene (PE) Substances 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injections Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 239000002131 composite materials Substances 0.000 description 2
- 239000011347 resins Substances 0.000 description 2
- 229920005989 resins Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrates Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
- 239000004033 plastics Substances 0.000 description 1
- 229920003023 plastics Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
-
- 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
- B29C45/641—Clamping devices using means for straddling or interconnecting the mould halves, e.g. jaws, straps, latches
Abstract
Description
Technical field
The present invention relates to the clamping of injection (mo(u)lding) machine; In more detail; Following clamping is provided, and this matched moulds function realizes precise forming and can reduce the use amount of working oil, and has the composite structure of oil pressure mold-closing mechanism and mechanical lock mechanism through mould is evenly pressurizeed.
Background technology
Recently, in the injection moulding of plastics, receive publicity through the precise forming of realizing that mould is evenly pressurizeed.This is a kind of trial that is described below: as the clamping that is called as the centre punch press; Concentrate on the central authorities of movable plate as far as possible through exert all one's strength (mold clamping force), thereby eliminate bias voltage, the inhomogeneous pressurization that causes because of the knuckle joint in the electric forming machine (toggle) structure.But in toggle link (toggle link) structure, the vector that is difficult to make 4 the power that imposes on movable plate is towards same horizontal direction, and carried out being used for reducing as far as possible the trial of the part on the vertical direction.
For the vertical compression method of the most suitable even pressurization, move forward and backward in closing cylinder in order to make closing piston, need to use a large amount of working oil.Thus, because action load becomes big, the mould opening and closing speed is slack-off, so the operating cost during moulding is higher than elbow-bar mechanism, and productivity becomes problem.
In pressurization based on the vertical compression mode, move forward and backward in order to make closing piston, need a large amount of working oil, the mould opening and closing speed is slack-off, has productive problem.And, in pressurization based on the knuckle joint mode and since be between clip toggle link and the knuckle joint pin comes transmission power, therefore from its textural saying, be difficult to realize evenly pressurization, thereby carried out approaching mechanism's improvement of the even pressurization of vertical compression mode.
As the advantage of the even pressurization that is used to keep the vertical compression mode and reduce the clamping of working oil use amount; From the permanent use of stable moulding, mould and the aspect consideration that reduces carrying capacity of environment, need to adopt the complex method that constitutes by mechanical locking and oil pressure mold-closing mechanism.But it is complicated that the structure of mechanical caging mode and closing cylinder becomes, and brought obstacle to the even pressurization on the vertical direction simultaneously.
Summary of the invention
The present invention accomplishes in order to address the above problem; A kind of clamping of injection (mo(u)lding) machine is provided; This clamping can be realized precise forming and can reduce the use amount of working oil, and have the composite structure of oil pressure mold-closing mechanism and mechanical lock mechanism through even pressurization.
To achieve these goals, clamping of the present invention has: fixed head; And movable plate, it relatively moves with respect to said fixed head and moulds open or closure, this clamping is characterised in that, and this clamping comprises: mould opens and closes cylinder, and it moves said movable plate through oil pressure and makes moulds open or closure; Closing cylinder, it provides the additional plus-pressure that produces because of oil pressure to opened and closed the closed mould of cylinder by said mould; And clasp nut opens and closes device, the position of its fixing said closing cylinder.
In addition, be characterised in that said closing cylinder combines with said movable plate, said mould opens and closes cylinder said movable plate through said closing cylinder is moved.
In addition, be characterised in that said clasp nut opens and closes device and comprises: the clasp nut that inside is provided oil pressure opens and closes cylinder; The 1st clasp nut, it opens and closes cylinder with said clasp nut and is connected; And the 2nd clasp nut, it carries out relatively moving each other offering under the effect of oil pressure that said clasp nut opens and closes cylinder with said the 1st clasp nut, and is fixing simultaneously or remove the closing piston bar that said closing cylinder possesses.
In addition, be characterised in that said clamping also comprises: position sensor, it detects the place that said the 1st clasp nut and the 2nd clasp nut contact with the outer peripheral face of said closing piston bar; And control device, the location information signal that it is used to accept the detected said Position/Point Of Contact of said position sensor makes the action of said the 1st clasp nut and the 2nd clasp nut.
In addition, be characterised in that, on the outer peripheral face of said closing piston bar, be formed with ring-like screw thread.
In addition, be characterised in that this clamping has plural said mould and opens and closes cylinder.
According to aforesaid the present invention, closing cylinder is positioned at the rear portion central authorities of movable plate, can realize the even pressurization near the position of mould.Because the face in the mould junction surface is pressed and applied equably, therefore receive the pressure of resin during the filling of the molten resin in injection moulding apparatus equably.Therefore, can prevent that generation and the degasification of burr (burr) is bad etc., the generation of the improper factor of moulding.
In addition, open and close the rod end type that is constructed to of cylinder through making mould, thereby can improve advancing and astern speed of movable plate.And the volume of the compression chamber through making closing cylinder diminishes, and can save working oil, also can shorten the required time of boosting, and can reduce living load.
Description of drawings
Fig. 1 is the figure that the closure state of clamping of the present invention roughly is shown.
Fig. 2 is the figure that the open mode of clamping of the present invention roughly is shown.
Fig. 3 is the figure that the closure state of clasp nut of the present invention (half nut) roughly is shown.
Fig. 4 is the figure that the open mode of clasp nut of the present invention roughly is shown.
Symbol description
1: fixed head
2: movable plate
3: gripper shoe
16: closing cylinder
17: closing piston
18a: the 2nd clasp nut
18b: the 1st clasp nut
19: mould opens and closes cylinder
20: position sensor
21: the closing piston bar
22: clasp nut opens and closes cylinder
23: connecting rod
24: clasp nut opens and closes uses piston rod
25: mould opens and closes piston
A: mould moving part
B: mould fixed part
PA: mold closing is used the pumping chamber
PB: the pumping chamber is used in die sinking
PC: the pumping chamber is used in the high pressure die sinking
PD: the high pressure mold closing is used the pumping chamber
PE: clasp nut is retreated and is used the pumping chamber
PF: clasp nut advances and uses the pumping chamber
The specific embodiment
Below, with reference to accompanying drawing, the structure of clamping of the present invention is described in further detail.
Fig. 1 is the figure that the closure state of clamping of the present invention roughly is shown, and Fig. 2 is the figure that the open mode of clamping of the present invention roughly is shown.
With reference to Fig. 1, clamping of the present invention has: fixed head 1; And movable plate 2, it relatively moves with respect to said fixing plate 1 and makes moulds open or closure.Above-mentioned clamping comprises mould and opens and closes cylinder 19, closing cylinder 16 and clasp nut switching device.Above-mentioned mould switching cylinder 19 moves above-mentioned movable plate 2 through oil pressure and makes moulds open or closure.Promptly, through open and close the internal feed oil pressure of cylinder 19 to above-mentioned mould, movable plate 2 is advanced or retreat.In Fig. 1, possess two above-mentioned moulds and open and close cylinder 19.The inner space of above-mentioned mould switching cylinder 19 is divided into mold closing and uses the PB of pumping chamber with PA of pumping chamber and die sinking.When making above-mentioned clamping closed, supply with oil pressure with the PA of pumping chamber to above-mentioned mold closing.At this moment, be inserted into mould that above-mentioned mould opens and closes the inside of cylinder 19 and open and close piston 25 and advance mobilely, make to open and close movable plate 2 that piston 25 is connected with above-mentioned mould and advance mobile and make mould closes.
Above-mentioned closing cylinder 16 provides the additional plus-pressure that produces because of oil pressure to opened and closed cylinder 19 closed moulds by above-mentioned mould.Above-mentioned closing cylinder 16 combines with above-mentioned movable plate 2, and above-mentioned mould opens and closes cylinder 19 and moves through making above-mentioned closing cylinder 16, and above-mentioned movable plate 2 is moved.Above-mentioned closing cylinder 16 have be divided into the high pressure die sinking with the PC of pumping chamber and high pressure mold closing with the space of the PD of pumping chamber, be inserted with closing piston 17 in the inside of closing cylinder 16.Open and close through above-mentioned mould cylinder 19 closed after the mould, provide oil pressure that closing piston 17 is advanced to above-mentioned high pressure mold closing with the PD of pumping chamber, the closing piston bar 21 that is connected with closing piston 17 advances, thereby additional plus-pressure is provided.Under the closure state of clamping, mould moving part A contacts with mould fixed part B.
Above-mentioned clasp nut opens and closes the position of the fixing above-mentioned closing cylinder 16 of device.Above-mentioned clasp nut opens and closes device and comprises: the clasp nut that inside is provided oil pressure opens and closes cylinder 22; The 1st clasp nut 18b, it opens and closes cylinder 22 with above-mentioned clasp nut and is connected; And the 2nd clasp nut 18a, it carries out relatively moving each other offering under the effect of oil pressure that above-mentioned clasp nut opens and closes cylinder 22 with above-mentioned the 1st clasp nut 18b, and is fixing simultaneously or remove the closing piston bar 21 that above-mentioned closing cylinder 16 is possessed.Along with above-mentioned the 2nd clasp nut 18a and above-mentioned the 1st clasp nut 18b move with mutual approaching mode, the closing piston bar 21 that above-mentioned closing cylinder 16 is possessed is fixed.Above-mentioned clasp nut opens and closes cylinder 22 to have clasp nut and advances to retreat with PF of pumping chamber and clasp nut and use the PE of pumping chamber, and they are supplied to oil pressure through inside and fix or remove above-mentioned closing piston bar 21.Above-mentioned closing piston bar 21 is fixed by clasp nut 18a, 18b.Promptly, above-mentioned clasp nut 18a, 18b can open and close cylinder 22 and open and close from both sides through clasp nut.Above-mentioned clasp nut 18a, 18b are the structures that opens and closes from both sides with the mode that can fix above-mentioned closing piston bar 21.In the above-mentioned clamping of closure, the clasp nut that provides above-mentioned clasp nut to open and close cylinder 22 advances with the oil pressure of the PF of pumping chamber, and above-mentioned clasp nut 18a, 18b relatively move, the fixing above-mentioned closing piston bar 21 from both sides.Therefore, clasp nut 18a, 18b become lock-out state.
With reference to Fig. 2, when opening above-mentioned clamping, supply with oil pressure with the PB of pumping chamber to above-mentioned die sinking.Thus, mould switching cylinder 19 inner moulds switching pistons 25 are retreated mobile, make the movable plate 2 that is connected with mould switching piston 25 retreat mobile.Simultaneously, the clasp nut that closes cylinder 22 to above-mentioned halfnut open is retreated oil pressure to be provided and clasp nut is opened and closed with the PE of pumping chamber and is retreated with piston rod 24.Be installed in clasp nut and open and close and relatively to separate with the 1st clasp nut 18b with the 2nd clasp nut 18a on the piston rod 24, thus clasp nut 18a, 18b from both sides releasing closing piston bar 21.
Fig. 3 is the figure that the closure state of clasp nut of the present invention roughly is shown, and Fig. 4 is the figure that the open mode of clasp nut of the present invention roughly is shown.
With reference to Fig. 3 and Fig. 4, explain that at length clasp nut opens and closes the action of device.Clasp nut of the present invention opens and closes device and comprises: clasp nut opens and closes cylinder the 22, the 2nd clasp nut 18a and the 1st clasp nut 18b.The inside that above-mentioned clasp nut is opened and closed cylinder 22 provides oil pressure, and above-mentioned the 1st clasp nut 18b opens and closes cylinder 22 with above-mentioned clasp nut and is connected.Above-mentioned the 2nd clasp nut 18a relatively moves with respect to above-mentioned the 1st clasp nut 18b under the effect of the oil pressure that supplies to above-mentioned clasp nut switching cylinder 22 and fixes or remove the closing piston bar 21 that above-mentioned closing cylinder 16 is possessed.Above-mentioned clasp nut 18a, 18b move with approaching mode each other, can be installed on the outer peripheral face of closing piston bar 21 and are fixed on the closing piston bar 21.Above-mentioned the 1st clasp nut 18b is installed on the connecting rod 23 that is connected with clasp nut switching cylinder 22.And, clasp nut is installed on above-mentioned the 2nd clasp nut 18a opens and closes with piston rod 24.Above-mentioned the 2nd clasp nut 18a along with clasp nut open and close with the preceding of piston rod 24 so that with approaching, above-mentioned the 2nd clasp nut 18a of the 1st clasp nut 18b also with above-mentioned the 1st clasp nut 18b near the time, fix above-mentioned closing piston bar 21.Open and close with the retreating of piston rod 24 through clasp nut, thus, above-mentioned the 2nd clasp nut 18a separates with above-mentioned the 1st clasp nut 18b, above-mentioned the 1st clasp nut 18b also separates with above-mentioned the 2nd clasp nut 18a, thereby removes above-mentioned closing piston bar 21.Above-mentioned clasp nut switching is advanced because of the oil pressure that imposes on clasp nut switching cylinder 22 with piston rod 24 or is retreated.The inside that above-mentioned clasp nut opens and closes cylinder 22 is divided into clasp nut and advances to retreat with PF of pumping chamber and clasp nut and use the PE of pumping chamber.When with the PF of pumping chamber oil pressure being provided when advancing to clasp nut, above-mentioned clasp nut opens and closes and advances with piston rod 24, and above-mentioned clasp nut 18a, 18b move with mutual approaching mode, fixing closing piston bar 21 between them.On the contrary, when retreating to clasp nut when with the PE of pumping chamber oil pressure being provided, above-mentioned clasp nut opens and closes and retreats with piston rod 24, and above-mentioned clasp nut 18a, 18b are separated from each other releasing closing piston bar 21 between them.
On the other hand, clamping of the present invention can further comprise position sensor 20, and this position sensor 20 detects the place that above-mentioned the 1st clasp nut 18b and the 2nd clasp nut 18a contact with the outer peripheral face of above-mentioned closing piston bar 21.On the outer peripheral face of above-mentioned closing piston bar 21, can be formed with screw thread (ring-like), above-mentioned position sensor 20 can detect the place that above-mentioned clasp nut 18a, 18b contact with above-mentioned screw thread.
Has position sensor 20 in the end of above-mentioned closing piston bar 21, the information of the Position/Point Of Contact of these position sensor 20 above-mentioned screw threads of detection and clasp nut 18a, 18b.According to the Position/Point Of Contact information of the screw thread of above-mentioned detection and clasp nut 18a, 18b, open and close cylinder 19, closing cylinder 16 and clasp nut to above-mentioned mould and open and close cylinder 22 oil pressure is provided.On the other hand, clamping can further comprise control device (not shown), and this control device is used to accept the Position/Point Of Contact information of above-mentioned screw thread and clasp nut 18a, 18b, and makes the above-mentioned the 1st and the 2nd clasp nut 18a, 18b action.
As above-mentioned the discussion; Rear portion central authorities at the movable plate 2 of the clamping of injection (mo(u)lding) machine possess closing cylinder 16; And possess clasp nut and open and close device; Thus, can the additional plus-pressure that produce because of oil pressure be provided, in injection moulding, can realize precise forming based on even pressurization to opened and closed the closed mould of cylinder by mould.In addition, can improve the advancing of movable plate 2, astern speed, save working oil, can also shorten the required time of boosting, can realize the saving of living load.
Abovely be illustrated with reference to embodiment; But for skilled those skilled in the art in the art; Obviously can understand, can in the scope that does not break away from the thought of the present invention that is documented in claims and field, carry out various modifications and change the present invention.
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2011-0012794 | 2011-02-14 | ||
KR1020110012794A KR101273052B1 (en) | 2011-02-14 | 2011-02-14 | Clamping Apparatus of Injection Molding Machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN102632595A true CN102632595A (en) | 2012-08-15 |
Family
ID=46617261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2011103295256A CN102632595A (en) | 2011-02-14 | 2011-10-26 | Clamping mechanism of injection molding machine |
Country Status (2)
Country | Link |
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KR (1) | KR101273052B1 (en) |
CN (1) | CN102632595A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103722713A (en) * | 2013-05-27 | 2014-04-16 | 昆山德安模具设计有限公司 | Intelligent injection molding machine |
CN103722675A (en) * | 2013-05-27 | 2014-04-16 | 昆山德安模具设计有限公司 | Novel intelligent injection molding machine |
CN103737788A (en) * | 2013-05-27 | 2014-04-23 | 昆山德安模具设计有限公司 | Intelligent multifunctional injection machine |
CN105538622A (en) * | 2016-01-22 | 2016-05-04 | 曹海平 | Die opening, closing and locking mechanism and method |
CN105584011A (en) * | 2015-12-31 | 2016-05-18 | 德科摩橡塑科技(东莞)有限公司 | Upward motion clamping block type pressurizing mold locking mechanism |
CN106457637A (en) * | 2014-05-19 | 2017-02-22 | Ls美创有限公司 | Gap correction mechanism and half nut fastening device of injection molding machine having same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203994593U (en) * | 2014-05-12 | 2014-12-10 | 陈国永 | A kind of pressure device for locking mould |
KR101493436B1 (en) * | 2014-10-21 | 2015-02-16 | 윤기환 | Vertical type injection molding machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101873914A (en) * | 2007-11-30 | 2010-10-27 | 三菱重工塑胶科技股份有限公司 | Mold closing mechanism |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0171478B1 (en) * | 1995-07-28 | 1999-03-30 | 유환덕 | Clamping apparatus of injection molding machine |
KR100873335B1 (en) * | 2007-07-11 | 2008-12-10 | 주식회사 우진세렉스 | Clamping unit for the plastic injection molding machine |
-
2011
- 2011-02-14 KR KR1020110012794A patent/KR101273052B1/en not_active IP Right Cessation
- 2011-10-26 CN CN2011103295256A patent/CN102632595A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101873914A (en) * | 2007-11-30 | 2010-10-27 | 三菱重工塑胶科技股份有限公司 | Mold closing mechanism |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103722713A (en) * | 2013-05-27 | 2014-04-16 | 昆山德安模具设计有限公司 | Intelligent injection molding machine |
CN103722675A (en) * | 2013-05-27 | 2014-04-16 | 昆山德安模具设计有限公司 | Novel intelligent injection molding machine |
CN103737788A (en) * | 2013-05-27 | 2014-04-23 | 昆山德安模具设计有限公司 | Intelligent multifunctional injection machine |
CN106457637A (en) * | 2014-05-19 | 2017-02-22 | Ls美创有限公司 | Gap correction mechanism and half nut fastening device of injection molding machine having same |
CN106457637B (en) * | 2014-05-19 | 2019-08-02 | Ls美创有限公司 | The clasp nut clamp device of gap aligning gear and the injection moulding machine with this gap aligning gear |
CN105584011A (en) * | 2015-12-31 | 2016-05-18 | 德科摩橡塑科技(东莞)有限公司 | Upward motion clamping block type pressurizing mold locking mechanism |
CN105538622A (en) * | 2016-01-22 | 2016-05-04 | 曹海平 | Die opening, closing and locking mechanism and method |
Also Published As
Publication number | Publication date |
---|---|
KR101273052B1 (en) | 2013-06-10 |
KR20120092886A (en) | 2012-08-22 |
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Application publication date: 20120815 |
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