CN102626977A - 5-noded clamping apparatus in a toggle type injection molding machine - Google Patents
5-noded clamping apparatus in a toggle type injection molding machine Download PDFInfo
- Publication number
- CN102626977A CN102626977A CN2012100223725A CN201210022372A CN102626977A CN 102626977 A CN102626977 A CN 102626977A CN 2012100223725 A CN2012100223725 A CN 2012100223725A CN 201210022372 A CN201210022372 A CN 201210022372A CN 102626977 A CN102626977 A CN 102626977A
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- China
- Prior art keywords
- connecting rod
- node
- crosshead
- short connecting
- injection molding
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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
- B29C45/66—Mould opening, closing or clamping devices mechanical
- B29C45/661—Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
-
- 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
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
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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 5-noded clamping apparatus in a toggle type injection molding machine, comprising a short connecting rod and a long connecting rod which connect a back pressing plate to a movable pressing plate through nodes; and a crosshead connecting rod arranged on a crosshead which moves to open and closed the moving pressing plate. One end of the crosshead connecting rod is connected to the short connecting rod through the nodes. The 5-noded clamping apparatus satisfies the equation of Y1 = an open distance * A, wherein Y is a horizontal distance between a centre of the nodes for connecting the back pressing plate with the short connecting rod and a centre of the nodes for connecting the movable pressing plate with the long connecting rod, and A is from 0.66 to 0.77.
Description
Technical field
The present invention relates to a kind of multiple clamping device that is used for injection (mo(u)lding) machine, and relate more specifically to a kind of 5 node clamping devices that are used for toggle type injection molding machine.
Background technology
Usually, the device for clamping mould that is used for injection (mo(u)lding) machine can be divided into direct press type and toggle rod type based on the mold cramping scheme.
Direct press type comes clamping mold through the mold clamping force that is only produced by cylinder barrel, thereby needs a large amount of hydraulic power sources.In order to keep mold clamping force, direct press type not only consumes significant amount of energy but also has low die sinking/toold closing speed.
Toggle rod type comes clamping mold through such mold clamping force, and this mold clamping force produces from the elastic return of the elongation of tie-rod through utilizing elbow-bar mechanism.For example, the name Korean Patent communique No.2006-0099800 that is called " multiple clamping apparatus of electric injection molding machine (the multiple clamping device of electric injection moulding machine) " discloses a kind of 5 node clamping devices that are used for toggle type injection molding machine.
Referring to Fig. 1, but the 5 node clamping devices that are used for toggle type injection molding machine have rear fender 11 and fixation clip 12 and the dynamic pressure plate between this rear fender and fixation clip 13 at each end of tie-rod 10.But dynamic pressure plate 13 is connected to rear fender 11 via long connecting rod that between node " a ", " b ", " c ", connects 14 and short connecting rod 15.Rear fender 11 has the servo motor 16 and ball-screw 17 that is positioned at an end, and ball-screw 17 is screwed in the crosshead 18, and this crosshead 18 connects with crosshead link 19 via node " d ".Crosshead link 19 connects with short connecting rod 15 via node " e ".
The 5 node clamping devices that are used for toggle type injection molding machine are with the difference of 4 node clamping devices: crosshead link 19 connects with short connecting rod 15 via node " e " rather than via node " a ".Because crosshead link 19 connects with short connecting rod 15 via node " e "; This node " e " is with respect to the radius of turn of node " b " radius of turn less than node " a "; So compare with 4 node clamping devices; 5 node clamping devices are guaranteed higher opening/close the littler amount of exercise of travel speed and crosshead 18, thereby can reduce the length of device for clamping mould.
Be different from direct press type, toggle type injection molding machine is operated device for clamping mould with repetitive mode.Therefore, through after the preset time, stretch than (extension ratio), that is, but the momental ratio of the amount of exercise of dynamic pressure plate and crosshead possibly go wrong.In other words, as shown in Figure 2, possibly drop to abnormally below zero but stretch, thereby cause reliability of products to reduce than stroke with respect to dynamic pressure plate.
Analyze this problem and open and be closely related apart from (daylight) and Y1 parameter; Wherein, But said open apart from the maximum height of stroke that is defined as the dynamic pressure plate in the injection (mo(u)lding) machine and mould with, but said Y1 parameter be defined as the center of connection rear fender and the node of short connecting rod and connect dynamic pressure plate and the center of the node of long connecting rod between horizontal range.
In order to address this problem, can consider to increase the scheme of the length of short connecting rod, but this scheme possibly cause the interference with ball-screw.Therefore, consider that the short connecting rod and the ratio of long connecting rod should increase the length of short connecting rod.
Summary of the invention
Technical problem
Therefore design the present invention the purpose of this invention is to provide a kind of 5 node clamping devices that are used for toggle type injection molding machine to address the above problem, and this clamping device has Y1 value and the optimum ratio of opening apart from value.
Another object of the present invention provides a kind of 5 node clamping devices that are used for toggle type injection molding machine, and this clamping device has good stretching, extension ratio, and between short connecting rod and ball-screw, does not interfere.
Technical scheme
In order to realize the object of the invention, the present invention provides a kind of 5 node clamping devices that are used for toggle type injection molding machine, and this clamping device comprises short connecting rod and long connecting rod, but said short connecting rod and said long connecting rod are connected to dynamic pressure plate via node with rear fender; And crosshead link; Said crosshead link is installed in the crosshead place; Said crosshead moves to open and close said movable pressing plate, and an end of said crosshead link is connected to said short connecting rod via node, wherein; Said 5 node clamping devices satisfy equality Y1=and open distance * A, and A is 0.66 to 0.77.
Said 5 node clamping devices can satisfy equality L
L=B * L
s, wherein, L
sBe the length of short connecting rod, L
LBe the length of long connecting rod, and B is preferably 1.20 to 1.41.
The ball-screw that said rear fender can at one end have servo motor and be connected to the rotating shaft of this servo motor, and said crosshead can be connected to the power that said ball-screw is used to move with reception.
Said short connecting rod can all have node at each end, and said crosshead link can have a pair of coupling bar, and this extends to each end of said short connecting rod from the node of said crosshead link to coupling bar.
Beneficial effect
The 5 node clamping devices that are used for toggle type injection molding machine according to the present invention can have good stretching, extension ratio, and can not drop to below zero, and the suitable length that can keep short connecting rod is interfered with ball-screw avoiding.
Description of drawings
Accompanying drawing shows the preferred implementation of present disclosure, and is used to provide the further understanding to the technical spirit of present disclosure together with above-mentioned disclosure.Yet present disclosure can not be regarded as and be confined to accompanying drawing.
Fig. 1 is the side view that illustrates according to the 5 node clamping devices that are used for toggle type injection molding machine of conventional art;
But Fig. 2 illustrates according to the stretching, extension of the 5 node clamping devices that are used for toggle type injection molding machine of conventional art than the curve map with respect to the stroke of dynamic pressure plate;
Fig. 3 is the figure that illustrates according to the main structure of the 5 node clamping devices that are used for toggle type injection molding machine of preferred implementation of the present invention;
But Fig. 4 illustrates according to the stretching, extension of the 5 node clamping devices that are used for toggle type injection molding machine of preferred implementation of the present invention than the curve map with respect to the stroke of dynamic pressure plate.
The specific embodiment
Hereinafter, with the preferred implementation that invention will be described in detail with reference to the attached drawing.Before describing; Should be appreciated that; The term that in specification and appended claim, uses should not be construed and is limited to general meaning and dictionary meanings, but explains based on meaning corresponding with the state of the art of the present invention and notion according to the principle that allows inventor's definition to be suitable for the term of best interpretations.Therefore, the description that this paper proposes only is a preferred embodiment, has been merely for the purpose of the explanation, is not intended to limit the scope of the invention, and therefore should be appreciated that, under the situation that does not break away from the spirit and scope of the present invention, can carry out other to the present invention and be equal to and revise.
Fig. 3 is the figure that illustrates according to the main structure of the 5 node clamping devices that are used for toggle type injection molding machine of preferred implementation of the present invention.
Referring to Fig. 3, can comprise the short connecting rod 101 that connects via node " a " and long connecting rod 100 and the crosshead link 102 that connects with short connecting rod 101 via node " e " according to the 5 node clamping devices that are used for toggle type injection molding machine of preferred implementation of the present invention.
With respect to node " a ", short connecting rod 101 can have node " b " and long connecting rod 100 can have node " c " at the other end at the other end.Short connecting rod 101 can connect with the rear fender of device for clamping mould via node " b ", and long connecting rod 100 can be via node " c " but connect with the dynamic pressure plate of device for clamping mould.
Rear fender can at one end have the servo motor of device for clamping mould and be screwed to the ball-screw in the rotating shaft of servo motor.The crosshead that is connected to ball-screw can connect with an end of crosshead link 102 via node " d ".
The other end of crosshead link 102 can be connected to short connecting rod 101 via node " e ".Preferably, crosshead link 102 can have a pair of coupling bar 103a and 103b, and this extends to the two ends of short connecting rod 101 from node " e " to coupling bar.
The 5 node clamping devices that are used for toggle type injection molding machine need satisfy following mathematical formulae 1, and wherein, Y1 is from 0.66 to 0.77 with the scope of the ratio (A) of opening distance.
[mathematical formulae 1]
Y1=opens distance * A
Wherein, But open apart from the maximum height of stroke and the mould of the dynamic pressure plate that is defined as device for clamping mould with, and Y1 be the connection rear fender with the node " b " of short connecting rod 101 but the center and connect dynamic pressure plate and the center of the node of long connecting rod 100 " c " between horizontal range.
When A is in 0.66 to 0.77 scope, can smooth variation but be used for the stretching, extension of 5 node clamping devices of toggle type injection molding machine than with respect to the stroke of dynamic pressure plate, and do not drop to below zero, as shown in Figure 4.
Surpass going up in limited time of 0.66 to 0.77 scope as A, stretch than being good, but the length of short connecting rod 101 excessively increases, thereby cause the interference with ball-screw.Be lower than 0.66 to 0.77 scope as A following in limited time, stretch than drop to zero below.
Preferably, the 5 node clamping devices that are used for toggle type injection molding machine can satisfy following mathematical formulae 2, and wherein, long connecting rod 100 can be 1.20 to 1.41 with the ratio (B) of short connecting rod 101.
[mathematical formulae 2]
L
L＝B×L
s
Wherein, L
sBe the length of short connecting rod 101, L
LBe the length of long connecting rod 100.
Cross going up in limited time of 1.20 to 1.41 scope when B ultrasonic, do not interfere, but stretch than drop to below zero, thereby but dynamic pressure plate is mobile astatically under the initial operation of servo motor.This vibration is difficult to control and possibly influences reliability of products subsequently.Be lower than 1.20 to 1.41 scope following the length of short connecting rod 101 excessively increases in limited time as B, thereby causes the interference with ball-screw.
Following table 1 shows according to the stretching, extension ratio of the 5 node clamping devices that are used for toggle type injection molding machine of embodiments of the invention and comparative example and the evaluation result of interference characteristic.Here, 1.7 or the stretching, extension ratio that is be evaluated as under " G " and this level of bigger good stretching, extension ratio be evaluated as " NG ".And, when not interfering between short connecting rod and the ball-screw, be not be evaluated as " G ", and when interfering, be evaluated as " NG ".
Table 1
As shown in table 1, the A scope of embodiment 1 to 6 satisfied 0.66 to 0.77 and 1.20 to 1.41 B scope.Find that embodiment 1 to 6 has good stretching, extension ratio and can not cause the interference between short connecting rod and the ball-screw.
On the contrary, comparative example 1 has the good stretching, extension ratio in 0.66 to 0.77 A scope, but has the B value under the lower limit of 1.20 to 1.41 scope, thereby the length of short connecting rod excessively increases, thereby causes the interference with ball-screw.Comparative example 2 satisfies 0.66 to 0.77 A scope but the stretching, extension ratio with the upper limit that surpasses 1.20 to 1.41 B scope.Comparative example 3 has the A value under the lower limit of 0.66 to 0.77 scope, thus stretch than drop to zero below.Comparative example 4 has the A value under the lower limit of 0.66 to 0.77 scope, thereby the length of short connecting rod excessively increases, thereby causes the interference with ball-screw.
Though described the present invention at preceding text; But should be appreciated that; Though detailed description and specific embodiment show preferred implementation of the present invention; But they have been merely signal and have provided, because various changes in the spirit and scope of the present invention and modification will become obvious from this detailed description to those skilled in the art.
Industrial applicability
Can in the application of process of injection molding, realize stability and reliability according to device for clamping mould of the present invention owing to its equalization operation.
The cross reference of related application
The application requires the priority of the korean patent application No.10-2011-0010141 of submission on February 1st, 2011, and the full content of this korean patent application is incorporated this paper into way of reference.
Claims (4)
1. 5 node clamping devices that are used for toggle type injection molding machine, said clamping device comprises short connecting rod and long connecting rod, but said short connecting rod and said long connecting rod are connected to dynamic pressure plate via node with rear fender; And crosshead link, said crosshead link is installed in the crosshead place, and said crosshead moves to open and close said movable pressing plate, and an end of said crosshead link is connected to said short connecting rod via node,
Wherein, Said 5 node clamping devices satisfy equality Y1=and open distance * A; Wherein but Y1 connects the center of said rear fender and the node of said short connecting rod and connects the horizontal range between the center of node of said dynamic pressure plate and said long connecting rod, and A is 0.66 to 0.77.
2. the 5 node clamping devices that are used for toggle type injection molding machine according to claim 1,
Wherein, said 5 node clamping devices satisfy equality L
L=B * L
s, L wherein
sBe the length of short connecting rod, L
LBe the length of long connecting rod, and B is 1.20 to 1.41.
3. the 5 node clamping devices that are used for toggle type injection molding machine according to claim 1 and 2,
Wherein, the ball-screw that said rear fender at one end has servo motor and is connected to the rotating shaft of this servo motor, and
Said crosshead is connected to the power that said ball-screw is used to move with reception.
4. the 5 node clamping devices that are used for toggle type injection molding machine according to claim 1 and 2,
Wherein, said short connecting rod all has node at each end, and
Said crosshead link has a pair of coupling bar, and said a pair of coupling bar extends to each end of said short connecting rod from the said node of said crosshead link.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110010141A KR101347237B1 (en) | 2011-02-01 | 2011-02-01 | 5-noded clamping apparatus in a toggle type injection molding machine |
| KR10-2011-0010141 | 2011-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102626977A true CN102626977A (en) | 2012-08-08 |
| CN102626977B CN102626977B (en) | 2015-02-11 |
Family
ID=46585457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210022372.5A Active CN102626977B (en) | 2011-02-01 | 2012-02-01 | 5-noded clamping apparatus in a toggle type injection molding machine |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101347237B1 (en) |
| CN (1) | CN102626977B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407237A (en) * | 2013-04-23 | 2018-08-17 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
| CN109352939A (en) * | 2018-10-08 | 2019-02-19 | 海天塑机集团有限公司 | A kind of clamping |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185942A (en) * | 1985-02-13 | 1986-08-19 | Mitsubishi Electric Corp | Resin-sealing device for semiconductor element |
| US4642044A (en) * | 1985-07-23 | 1987-02-10 | Fanuc Ltd | Lock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100838044B1 (en) * | 2005-03-15 | 2008-06-12 | 엘에스전선 주식회사 | Multiple Clamping apparatus of Electric Injection Molding Machine |
-
2011
- 2011-02-01 KR KR1020110010141A patent/KR101347237B1/en active IP Right Grant
-
2012
- 2012-02-01 CN CN201210022372.5A patent/CN102626977B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185942A (en) * | 1985-02-13 | 1986-08-19 | Mitsubishi Electric Corp | Resin-sealing device for semiconductor element |
| US4642044A (en) * | 1985-07-23 | 1987-02-10 | Fanuc Ltd | Lock |
Non-Patent Citations (1)
| Title |
|---|
| 张友根: "肘杆合模机构速度传动比性能的设计研究", 《塑料制造》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407237A (en) * | 2013-04-23 | 2018-08-17 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
| CN108407237B (en) * | 2013-04-23 | 2020-09-01 | 住友重机械工业株式会社 | Injection molding machine |
| CN109352939A (en) * | 2018-10-08 | 2019-02-19 | 海天塑机集团有限公司 | A kind of clamping |
| CN109352939B (en) * | 2018-10-08 | 2023-12-26 | 海天塑机集团有限公司 | Mold closing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102626977B (en) | 2015-02-11 |
| KR20120089042A (en) | 2012-08-09 |
| KR101347237B1 (en) | 2014-01-03 |
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