CN104669567A - Rapid die opening and closing device in injection molding machine - Google Patents
Rapid die opening and closing device in injection molding machine Download PDFInfo
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- CN104669567A CN104669567A CN201510083307.7A CN201510083307A CN104669567A CN 104669567 A CN104669567 A CN 104669567A CN 201510083307 A CN201510083307 A CN 201510083307A CN 104669567 A CN104669567 A CN 104669567A
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- 238000001746 injection moulding Methods 0.000 title abstract description 5
- 238000002347 injection Methods 0.000 claims description 33
- 239000007924 injection Substances 0.000 claims description 33
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 230000007704 transition Effects 0.000 abstract 3
- 238000000465 moulding Methods 0.000 abstract 2
- 230000003139 buffering effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920000034 Plastomer Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a rapid die opening and closing device in an injection molding machine, belonging to the technical field of injection molding machines. The rapid die opening and closing device comprises a rack, an upper die body, a lower die body and a driving part I, wherein the upper die body and the lower die body are connected on the rack; the lower die body is arranged at the lower part of the upper die body; after the upper die body and the lower die body are fastened, a molding cavity with a cavity inside is formed between the upper die body and the lower die body; a connecting plate is arranged at the top of the rack; vertical guide rods are arranged on the connecting plate; the upper die body is connected on the guide rods; a transition plate is also arranged between the upper die body and the driving part I; the driving part I is connected with the upper side of the transition plate; a driving part II is fixedly connected on the transition plate and is connected with the upper die body; an injection molding opening communicated with the molding cavity is formed in the upper die body; and buffer structures are arranged between the driving part II and the upper die body. The rapid die opening and closing device not only is rapid in opening and closing and has high precision but also has the characteristics of reduction of the impact force and prolonging of service lives of parts.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of injection machine, the quickly opening and closing die device particularly in a kind of injection machine.
Background technology
Along with the development of industrial technology, high-end industrial production comes into the life of people gradually, and production and the design of the product of various design all need through the several step of layout design, mould shape and the manufacturing.Injection mold is one of most widely used mould in current industrial production, a kind of processing method used when being some complex-shaped parts of batch production.The material melted that is heated is injected die cavity by high pressure by concrete finger, after cooling curing, obtains formed products.Injection mold is made up of dynamic model and cover half two parts, and dynamic model is arranged on the moving die plate of injection (mo(u)lding) machine, and cover half is arranged on the fixed form of injection (mo(u)lding) machine.When injection moulding, dynamic model and cover half close and form running gate system and die cavity, and during die sinking, dynamic model is separated to take out plastic products with cover half.But this existing injection mold affects output slowly carrying out folding mould hourly velocity, and speed is impacted greatly soon, large to parts damage, the accuracy that dynamic model and cover half close is not high, and when having arrived this operation of the demoulding, great majority all need the artificial demoulding, not only consume manpower, and speed of production are slow again.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the quickly opening and closing die device in a kind of injection machine, not only folding is fast, accuracy is high, and has the advantages that to reduce impulsive force, elongated component life-span and automatic demoulding.
Object of the present invention realizes by following technical proposal: the quickly opening and closing die device in a kind of injection machine, it comprises frame, upper die body, lower mold body and actuator one, above-mentioned upper die body and lower mold body are all connected in described frame, described lower mold body is positioned at upper die body bottom, the forming cavity that inside is cavity is formed between after above-mentioned upper die body and lower mold body fasten, it is characterized in that, described frame top has the connecting plate in tabular, described connecting plate has the guide post vertically arranged, above-mentioned upper die body connects on the guide bar, also there is rebound between described upper die body and actuator one, above-mentioned actuator one is connected on the upside of rebound, described rebound is fixed with actuator two and actuator two and above-mentioned cope match-plate pattern are connected, described upper die body has the injection hole communicated with forming cavity, between described actuator two and upper die body, there is buffer structure.
The piston rod of actuator one is connected in the middle part of rebound, the piston rod of actuator two is connected in the both sides of upper die body, it is the forming cavity of cavity that upper die body can be fastened with lower mold body fast by actuator one, molten plastic enters forming cavity from the injection hole upper die body, upper die body can accurately fasten with lower mold body along guide post, actuator one moves and directly drives rebound to pump, rebound moves up and down the actuator two directly driving and be connected with it, the process that buffer structure between actuator two and upper die body is moving down, the fastening of buffering upper die body and lower mold body, avoid clashing into time-histories and spend the large service life of directly damaging parts or reducing parts.
Described actuator two is oil cylinder, described buffer structure comprises connecting cylinder, connecting rod and spring, above-mentioned connecting cylinder is connected in the piston rod outer end of oil cylinder, the middle sidepiece of described connecting cylinder has the stopper slot axially run through along it, described connecting rod the inner is positioned at connecting cylinder and has the spacer pin of protrusion at connecting rod sidepiece, described spacer pin is positioned at above-mentioned stopper slot place, described connecting rod outer end and above-mentioned upper die body are connected, and above-mentioned spring is positioned at connecting cylinder and the two ends of spring push up that to be pressed in connecting cylinder and connecting rod inner respectively.
Actuator one promotes to drive rebound to move down fast, rebound moves down the actuator two be connected with it and moves down, simultaneous buffering structure also moves down, connecting rod lower end in buffer structure and upper die body end face against, connecting rod is squeezed in connecting cylinder and moves, and be positioned at the spring stress compression of connecting rod upper end, connecting rod moves one end apart from rear its protrude spacer pin slide into stopper slot upper side and with its mutually against, move on restriction connecting rod continues, when rebound moves, connecting rod moves down recovery by spring force, spacer pin slide into stopper slot downside and with its mutually against, restriction connecting rod continues to move down.
The piston rod of described actuator one is connected in the middle part of rebound, and the piston rod of described actuator two is connected in the both sides of upper die body.The volume of rebound is less than upper die body and the surface of rebound and upper die body is burnishing surface, and actuator one quantity is one, and actuator two quantity is two.
Alternatively scheme, described actuator two is oil cylinder, and described buffer structure is air spring, and the inner of described air spring and the piston rod of above-mentioned oil cylinder are connected, and outer end and the upper die body of described air spring are connected.
Air spring is a kind of industry accessories that can play support, buffering, braking, the highly function such as adjustment and angular adjustment, market can be bought, change easily more convenient.
The quantity of described guide post is two and is positioned at the both sides of connecting plate, is fixed with guide plate between described two guide posts, and the piston rod of above-mentioned actuator one is through guide plate.
Guide plate plays a guide effect for the piston rod of actuator one, prevents piston rod from offseting in the process of movement.
Described guide plate is fixed with guide cylinder cylindrically, described guide cylinder is enclosed within the piston rod of actuator one.
Guide cylinder mainly moves up and down for the piston rod of actuator one, it is large that the contact area of the piston rod of guide cylinder and actuator one compares that the area of piston rod of guide plate and actuator one comes, and plays the further guide effect of a piston rod to actuator one.
This device also comprises support, rotating shaft and actuator three, and described rotating shaft is connected in lower mold body, and above-mentioned actuator three is connected on support and actuator three can drive above-mentioned axis of rotation 180 degree.
Actuator three is servomotor, and servomotor can control rotating speed and the rotational angle of output shaft, and the accuracy of its control position is very high, can the extraordinary action completing forward and reverse.
The intracavity bottom of described lower mold body has the stripper plate matched with it, described stripper plate has in shaft-like knockout pin, and described knockout pin outer end is stretched out bottom lower mold body.
Described knockout pin has the limit convex edge of protrusion, described limit convex is along being resisted against outside lower mold body.
Actuator three drives axis of rotation 180 °, the lower mold body be simultaneously connected with rotating shaft also rotates 180 °, limit convex on knockout pin is along extruding by upper die body, stripper plate promotes the plastomer in lower mold body inner chamber and makes its demoulding, limit convex infinitely moves down along being mainly used in restriction knockout pin, avoids knockout pin in disengaging lower mold body.
Compared with prior art, the advantage of the quickly opening and closing die device in this injection machine have following some:
1, in the quickly opening and closing die device in this injection machine, there is multiple guiding parts, upper die body can accurately be fastened with lower mold body.
2, the quickly opening and closing die device in this injection machine, when quickly opening and closing, improves the service life of parts greatly by buffer structure.
3, the quickly opening and closing die device in this injection machine also has fast automatic demoulding functions, improves productivity effect.
Accompanying drawing explanation
Fig. 1 is the front view of the quickly opening and closing die device in this injection machine.
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Fig. 3 is the sectional view of buffer structure in embodiment two.
In figure, 1, frame; 2, upper die body; 3, lower mold body; 4, actuator one; 5, forming cavity; 6, connecting plate; 7, guide post; 8, rebound; 9, actuator two; 10, injection hole; 11, connecting rod; 12, spring; 13, connecting cylinder; 14, stopper slot; 15, spacer pin; 16, air spring; 17, guide plate; 18, guide cylinder; 19, support; 20, rotating shaft; 21, actuator three; 22, stripper plate; 23, knockout pin; 24, limit convex edge.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, quickly opening and closing die device in a kind of injection machine, it comprises frame 1, upper die body 2, lower mold body 3 and actuator 1, upper die body 2 and lower mold body 3 are all connected in frame 1, lower mold body 3 is positioned at upper die body 2 bottom, the forming cavity 5 that inside is cavity is formed between after upper die body 2 and lower mold body 3 fasten, frame 1 top has the connecting plate 6 in tabular, connecting plate 6 has the guide post 7 vertically arranged, upper die body 2 is connected on guide post 7, between upper die body 2 and actuator 1, also there is rebound 8, actuator 1 is connected on the upside of rebound 8, rebound 8 is fixed with actuator 29 and actuator 29 and cope match-plate pattern are connected, upper die body 2 has the injection hole 10 communicated with forming cavity 5, between actuator 29 and upper die body 2, there is buffer structure.
The piston rod of actuator 1 is connected in the middle part of rebound 8, the piston rod of actuator 29 is connected in the both sides of upper die body 2, it is the forming cavity 5 of cavity that upper die body 2 can be fastened with lower mold body 3 fast by actuator 1, molten plastic enters forming cavity 5 from the injection hole 10 upper die body 2, upper die body 2 can accurately fasten with lower mold body 3 along guide post 7, actuator 1 moves and directly drives rebound 8 to pump, rebound 8 moves up and down the actuator 29 directly driving and be connected with it, the process that buffer structure between actuator 29 and upper die body 2 is moving down, the fastening of buffering upper die body 2 and lower mold body 3, avoid clashing into time-histories and spend the large service life of directly damaging parts or reducing parts.
Actuator 29 is oil cylinder, buffer structure comprises connecting cylinder 13, connecting rod 11 and spring 12, connecting cylinder 13 is connected in the piston rod outer end of oil cylinder, the middle sidepiece of connecting cylinder 13 has the stopper slot 14 axially run through along it, connecting rod 11 the inner is positioned at connecting cylinder 13 and has the spacer pin 15 of protrusion at connecting rod 11 sidepiece, spacer pin 15 is positioned at stopper slot 14 place, connecting rod 11 outer end and upper die body 2 are connected, and spring 12 is positioned at connecting cylinder 13 and the two ends of spring 12 push up that to be pressed in connecting cylinder 13 and connecting rod 11 inner respectively.
Actuator 1 promotes to drive rebound 8 to move down fast, rebound 8 moves down the actuator 29 be connected with it and moves down, simultaneous buffering structure also moves down, connecting rod 11 lower end in buffer structure and upper die body 2 end face against, connecting rod 11 is squeezed in connecting cylinder 13 and moves, and be positioned at spring 12 forced compression of connecting rod 11 upper end, connecting rod 11 moves one end apart from rear its protrude spacer pin 15 slide into stopper slot 14 upper side and with its mutually against, move on restriction connecting rod 11 continues, when rebound 8 moves, connecting rod 11 moves down recovery by spring 12 elastic force, spacer pin 15 slide into stopper slot 14 downside and with its mutually against, restriction connecting rod 11 continues to move down.
The piston rod of actuator 1 is connected in the middle part of rebound 8, and the piston rod of actuator 29 is connected in the both sides of upper die body 2.The volume of rebound 8 is less than upper die body 2 and the surface of rebound 8 and upper die body 2 is burnishing surface, and actuator 1 quantity is one, and actuator 29 quantity is two.The quantity of guide post 7 is two and is positioned at the both sides of connecting plate 6, is fixed with guide plate 17 between two guide posts 7, and the piston rod of actuator 1 is through guide plate 17.Guide plate 17 plays a guide effect for the piston rod of actuator 1, prevents piston rod from offseting in the process of movement.Guide plate 17 is fixed with guide cylinder 18 cylindrically, guide cylinder 18 is enclosed within the piston rod of actuator 1.Guide cylinder 18 mainly moves up and down for the piston rod of actuator 1, it is large that guide cylinder 18 and the contact area of the piston rod of actuator 1 compare that guide plate 17 and the area of the piston rod of actuator 1 come, and plays the further guide effect of a piston rod to actuator 1.
This device also comprises support 19, rotating shaft 20 and actuator 3 21, and rotating shaft 20 is connected in lower mold body 3, and actuator 3 21 is connected on support 19 and actuator 3 21 can drive rotating shaft 20 to rotate 180 degree.Actuator 3 21 is servomotor, and servomotor can control rotating speed and the rotational angle of output shaft, and the accuracy of its control position is very high, can the extraordinary action completing forward and reverse.
The intracavity bottom of lower mold body 3 has the stripper plate 22 matched with it, and stripper plate 22 has in shaft-like knockout pin 23, knockout pin 23 outer end is stretched out bottom lower mold body 3.Knockout pin 23 has the limit convex of protrusion along 24, limit convex can be resisted against outside lower mold body 3 along 24.Actuator 3 21 drives rotating shaft 20 to rotate 180 °, the lower mold body 3 be simultaneously connected with rotating shaft 20 also rotates 180 °, limit convex on knockout pin 23 extrudes along 24 by upper die body 2, stripper plate 22 promotes the plastomer in lower mold body 3 inner chamber and makes its demoulding, limit convex is mainly used in restriction knockout pin 23 along 24 and infinitely moves down, and avoids knockout pin 23 in disengaging lower mold body 3.
Basic functional principle is as follows: when starting actuator 1 and promoting rebound 8 fast, be connected in that the piston rod of the actuator 29 on rebound 8 is stressed to be moved down, connecting rod in buffer structure 11 and upper die body 2 mutually against, connecting rod 11 moves and extrusion spring 12 toward upper end in connecting cylinder 13 relative to connecting cylinder 13, just stop mobile until the spacer pin 15 of connecting rod 11 slides into stopper slot 14 upper side, actuator 29 starts the whole buffer structure of promotion and moves down, connecting rod 11 promotes upper die body 2 and moves down the forming cavity 5 fastened with lower mold body 3 as cavity, molten plastic enters forming cavity 5 from the injection hole 10 upper die body 2, after molten plastic is shaping in forming cavity 5, start actuator 4 26 gripper shoe 27 is return, restarting actuator 3 21 drives lower mold body 3 to rotate 180 ° by rotating shaft 20, extruding limit convex is moved down along 24 finally by upper die body 2, stripper plate 22 is driven again by knockout pin 23, stripper plate 22 promotes article shaped and is departed from.
Embodiment two
The present embodiment is roughly the same with embodiment one as shown in Figure 3, and institute's difference is that actuator 29 is for oil cylinder, and buffer structure is air spring 16, and the inner of air spring 16 and the piston rod of oil cylinder are connected, and outer end and the upper die body 2 of air spring 16 are connected.Air spring 16 is a kind of industry accessories that can play support, buffering, braking, the highly function such as adjustment and angular adjustment, market can be bought, change easily more convenient.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ frame 1, upper die body 2, lower mold body 3, actuator 1, forming cavity 5, connecting plate 6, guide post 7, rebound 8, actuator 29, injection hole 10, connecting rod 11, spring 12, connecting cylinder 13, stopper slot 14, spacer pin 15, air spring 16, guide plate 17, guide cylinder 18, support 19, rotating shaft 20, actuator 3 21, stripper plate 22, knockout pin 23, limit convex herein along the terms such as 24, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (9)
1. the quickly opening and closing die device in an injection machine, it comprises frame (1), upper die body (2), lower mold body (3) and actuator one (4), above-mentioned upper die body (2) and lower mold body (3) are all connected in described frame (1), described lower mold body (3) is positioned at upper die body (2) bottom, the forming cavity (5) that inside is cavity is formed between after above-mentioned upper die body (2) and lower mold body (3) fasten, it is characterized in that, described frame (1) top has the connecting plate (6) in tabular, described connecting plate (6) has the guide post (7) vertically arranged, above-mentioned upper die body (2) is connected on guide post (7), also there is between described upper die body (2) and actuator one (4) rebound (8), above-mentioned actuator one (4) is connected to rebound (8) upside, described rebound (8) is fixed with actuator two (9) and actuator two (9) and above-mentioned cope match-plate pattern are connected, described upper die body (2) has the injection hole (10) communicated with forming cavity (5), between described actuator two (9) and upper die body (2), there is buffer structure.
2. the quickly opening and closing die device in a kind of injection machine according to claim 1, it is characterized in that, described actuator two (9) is oil cylinder, described buffer structure comprises connecting cylinder (13), connecting rod (11) and spring (12), above-mentioned connecting cylinder (13) is connected in the piston rod outer end of oil cylinder, the middle sidepiece of described connecting cylinder (13) has the stopper slot (14) axially run through along it, described connecting rod (11) the inner is positioned at connecting cylinder (13) and has the spacer pin (15) of protrusion at connecting rod (11) sidepiece, described spacer pin (15) is positioned at above-mentioned stopper slot (14) place, described connecting rod (11) outer end and above-mentioned upper die body (2) are connected, above-mentioned spring (12) is positioned at connecting cylinder (13) and the two ends of spring (12) push up that to be pressed in connecting cylinder (13) and connecting rod (11) inner respectively.
3. the quickly opening and closing die device in a kind of injection machine according to claim 2, it is characterized in that, the piston rod of described actuator one (4) is connected in rebound (8) middle part, and the piston rod of described actuator two (9) is connected in the both sides of upper die body (2).
4. the quickly opening and closing die device in a kind of injection machine according to claim 1, it is characterized in that, described actuator two (9) is oil cylinder, described buffer structure is air spring (16), the inner of described air spring (16) and the piston rod of above-mentioned oil cylinder are connected, and outer end and the upper die body (2) of described air spring (16) are connected.
5. the quickly opening and closing die device in a kind of injection machine according to claim 3, it is characterized in that, the quantity of described guide post (7) is two and is positioned at the both sides of connecting plate (6), be fixed with guide plate (17) between described two guide posts (7), the piston rod of above-mentioned actuator one (4) is through guide plate (17).
6. the quickly opening and closing die device in a kind of injection machine according to claim 5, it is characterized in that, described guide plate (17) is fixed with guide cylinder (18) cylindrically, described guide cylinder (18) is enclosed within the piston rod of actuator one (4).
7. the quickly opening and closing die device in a kind of injection machine according to claim 1, it is characterized in that, this device also comprises support (19), rotating shaft (20) and actuator three (21), described rotating shaft (20) is connected in lower mold body (3), and above-mentioned actuator three (21) is connected in that support (19) is upper and actuator three (21) can drive above-mentioned rotating shaft (20) rotation 180 degree.
8. the quickly opening and closing die device in a kind of injection machine according to claim 6, it is characterized in that, the intracavity bottom of described lower mold body (3) has the stripper plate (22) matched with it, described stripper plate (22) has in shaft-like knockout pin (23), lower mold body (3) bottom is stretched out in described knockout pin (23) outer end.
9. the quickly opening and closing die device in a kind of injection machine according to claim 8, it is characterized in that, described knockout pin (23) has the limit convex of protrusion along (24), described limit convex can be resisted against lower mold body (3) outside along (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083307.7A CN104669567B (en) | 2015-02-10 | 2015-02-10 | Rapid die opening and closing device in injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083307.7A CN104669567B (en) | 2015-02-10 | 2015-02-10 | Rapid die opening and closing device in injection molding machine |
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| Publication Number | Publication Date |
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| CN104669567A true CN104669567A (en) | 2015-06-03 |
| CN104669567B CN104669567B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510083307.7A Expired - Fee Related CN104669567B (en) | 2015-02-10 | 2015-02-10 | Rapid die opening and closing device in injection molding machine |
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| Country | Link |
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| CN (1) | CN104669567B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669570A (en) * | 2015-02-10 | 2015-06-03 | 吴超 | Novel rapid die opening and closing device in injection molding machine |
| CN105216240A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | With the mould of stripper |
| CN105818341A (en) * | 2016-06-04 | 2016-08-03 | 台州市黄岩亿联塑料模具有限公司 | Angle ejection mechanism of injection mold |
| CN106965388A (en) * | 2017-03-28 | 2017-07-21 | 台州市黄岩西诺模具有限公司 | The cavity jacking mechanism of injection mold |
| CN107553817A (en) * | 2017-09-26 | 2018-01-09 | 乐凯特科技铜陵有限公司 | A kind of multi-inserts synchronous mould-entering device |
| CN112454836A (en) * | 2020-12-04 | 2021-03-09 | 杜发德 | Quick demoulding structure for injection molding machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669570A (en) * | 2015-02-10 | 2015-06-03 | 吴超 | Novel rapid die opening and closing device in injection molding machine |
| CN104669570B (en) * | 2015-02-10 | 2017-04-12 | 汕头市澄海区麒麟机电有限公司 | Novel rapid die opening and closing device in injection molding machine |
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| CN105818341A (en) * | 2016-06-04 | 2016-08-03 | 台州市黄岩亿联塑料模具有限公司 | Angle ejection mechanism of injection mold |
| CN105818341B (en) * | 2016-06-04 | 2017-11-28 | 台州市黄岩亿联塑料模具有限公司 | A kind of pitched roof mechanism of injection mold |
| CN106965388A (en) * | 2017-03-28 | 2017-07-21 | 台州市黄岩西诺模具有限公司 | The cavity jacking mechanism of injection mold |
| CN107553817A (en) * | 2017-09-26 | 2018-01-09 | 乐凯特科技铜陵有限公司 | A kind of multi-inserts synchronous mould-entering device |
| CN112454836A (en) * | 2020-12-04 | 2021-03-09 | 杜发德 | Quick demoulding structure for injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104669567B (en) | 2017-03-22 |
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