CN114474629A - Reverse mould locking device for injection mechanism of one-step injection, drawing and blowing hollow forming machine - Google Patents
Reverse mould locking device for injection mechanism of one-step injection, drawing and blowing hollow forming machine Download PDFInfo
- Publication number
- CN114474629A CN114474629A CN202210083675.1A CN202210083675A CN114474629A CN 114474629 A CN114474629 A CN 114474629A CN 202210083675 A CN202210083675 A CN 202210083675A CN 114474629 A CN114474629 A CN 114474629A
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- CN
- China
- Prior art keywords
- injection
- plate
- mold
- reverse
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 49
- 239000007924 injection Substances 0.000 title claims abstract description 49
- 238000007664 blowing Methods 0.000 title abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000071 blow moulding Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010103 injection stretch blow moulding Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000010102 injection blow moulding Methods 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 19
- 239000003921 oil Substances 0.000 description 39
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 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
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
- B29L2031/716—Bottles of the wide mouth type, i.e. the diameters of the bottle opening and its body are substantially identical
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A reverse mold locking device of an injection molding mechanism of a one-step injection, drawing and blowing hollow molding machine comprises a bottom plate, a middle plate, a top plate and a stand column, wherein an injection molding cavity is arranged on the bottom plate, a turntable is arranged below the middle plate, an injection molding lip mold is arranged on the turntable, a core mold plate is arranged on the stand column in a sliding manner, an injection molding core mold is arranged below the core mold plate, an opening and closing mold oil cylinder is arranged on the top plate and connected with the core mold plate, a reverse ejection oil cylinder is arranged on the core mold plate and connected with a reverse ejection rod, a through hole is formed in the top plate, the reverse ejection rod extends out of the through hole, a locking device is arranged on the bottom surface of the top plate at the through hole, the locking device comprises a locking air cylinder arranged on the bottom surface of the top plate and connected with a locking cushion block, two T-shaped guide plates are arranged at the through hole, sliding strips are arranged in the two T-shaped guide plates, and the opening and closing mold oil cylinder drives the core mold plate to move downwards to drive the reverse ejection rod to move downwards to the lower part of the through hole during injection molding, the locking cushion blocks the via hole, and the reverse ejector rod reversely pushes against the locking cushion block.
Description
Technical Field
The invention relates to a reverse mold locking device of an injection mechanism of a one-step injection, drawing and blowing hollow molding machine, belonging to the field of plastic machinery.
Background
The existing one-step injection stretch blow equipment mainly comprises an injection molding mechanism, a heating mechanism, a blow molding mechanism and a bottle discharging mechanism, wherein a mode locking device of the injection molding mechanism mostly adopts a mode of directly locking a mode by using an oil cylinder, so that the required locking oil cylinder (namely an upper opening and lower opening and closing oil cylinder) is required to be very large to achieve the purpose of preventing a mold from expanding. In particular, when a multi-cavity wide-mouth bottle is processed, in order to obtain a large clamping force (the pressure of an oil cylinder needs to be more than 50 tons), an injection mold has to be clamped by using an oil cylinder with a large cylinder diameter. The large-diameter oil cylinder needs large hydraulic oil quantity and high energy consumption, so that the processing cost is increased, and meanwhile, the large-diameter oil cylinder is slow in action and low in production efficiency.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the reverse mould locking device of the injection mechanism of the one-step injection stretch blow hollow molding machine, which adopts the combination of the cushion block and the ejector rod, realizes reverse dead-locking, is more reliable in mould locking, has small energy consumption of the ejector rod, is quick in action, saves the cost and improves the efficiency.
The technical scheme of the reverse mold locking device of the injection mechanism of the one-step injection, drawing and blowing hollow molding machine is as follows: the injection molding machine comprises a machine frame consisting of a bottom plate, a middle plate, a top plate and upright posts, wherein an injection molding cavity, a heating cavity, a blow molding cavity and a bottle discharging mechanism are arranged on the bottom plate, a turntable is arranged below the middle plate, an injection molding lip mold is arranged on the turntable corresponding to the injection molding cavity, a core mold plate is arranged on the upright post between the corresponding middle plate and the top plate in a sliding manner, an injection molding core mold is arranged below the core mold plate, an opening and closing mold oil cylinder is arranged on the corresponding top plate, an oil cylinder rod of the opening and closing mold oil cylinder is connected with the core mold plate and drives the injection molding core mold to be matched with the injection molding lip mold and the injection molding cavity, the injection molding machine is characterized in that a reverse ejection oil cylinder is arranged on the core mold plate, a reverse ejection rod is connected on the reverse ejection oil cylinder, a through hole is arranged on the top plate, the reverse ejection rod extends out of the through hole, a locking device is arranged on the bottom surface of the top plate at the through hole, the locking device comprises a locking air cylinder arranged on the bottom surface of the top plate, the locking cushion block connected with the locking cylinder, two T-shaped guide plates arranged at the through hole, and the two T-shaped guide plates are respectively provided with a slide bar, during injection molding, the mold opening and closing oil cylinder drives the core mold plate to move downwards to drive the reverse ejector rod to move downwards to the lower part of the via hole, the via hole is blocked by the locking cushion block, and the reverse ejector rod reversely pushes against the locking cushion block.
The invention discloses a reverse mold locking device of an injection mechanism of a one-step injection-stretch-blow hollow molding machine, which is characterized in that a mold opening and closing oil cylinder drives a core mold plate to descend, the core mold plate drives an injection core mold to pass through an injection lip mold to be matched with an injection mold cavity to complete mold closing of an injection mold, at the moment, a reverse ejection oil cylinder and a reverse ejection rod arranged on the core mold plate move downwards along with the core mold plate, the reverse ejection rod moves downwards to the lower part of a through hole, then a locking air cylinder works to drive a locking cushion block to be blocked on the through hole, then the reverse ejection oil cylinder works to drive the reverse ejection rod to upwards and reversely eject on the locking cushion block, and mold locking force is formed on the core mold plate and the injection core mold under the action of reaction force to prevent mold expansion during injection. When the scheme is assembled, the mold opening and closing oil cylinder can adopt a small-cylinder-diameter oil cylinder, only the mold opening and closing power is required, the mold locking function is not required to be undertaken, the required energy consumption is greatly saved, and the production cost is reduced. And the anti-ejection oil cylinder is used for locking the mold due to reverse ejection, when the anti-ejection oil cylinder works in practice, the anti-ejection oil cylinder and the anti-ejection rod can be used as an integral ejection rod to be ejected between the core template and the top plate to play a supporting role to prevent the injection molding core mold from expanding, energy consumption required by acting is saved, the distance of reverse ejection is short, in practical production, the anti-ejection rod moves down to about 40mm below the through hole, then the locking cushion block blocks the through hole immediately, then the anti-ejection oil cylinder drives the anti-ejection rod to eject quickly, the action is very quick, and the production efficiency of the whole machine can be improved.
The reverse mould locking device of the injection mechanism of the one-step injection, drawing and blowing hollow molding machine is characterized in that two groups of reverse ejection oil cylinders and reverse ejection rods are respectively arranged on two sides of an oil cylinder rod, two groups of corresponding locking devices are arranged, and the two groups of devices are stable in locking and good in effect. The top of the anti-ejector rod is provided with an abrasion-resistant plate, and the abrasion of the anti-ejector rod is prevented due to the abrasion-resistant plate.
Drawings
FIG. 1 is a schematic structural view of a reverse mold locking device of an injection mechanism of a one-step injection stretch blow molding machine according to the present invention;
FIG. 2 is a schematic perspective view of a reverse mold locking device of an injection mechanism of the one-step injection stretch blow molding machine according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic view of the locking device of the present invention in an open state;
fig. 5 is a schematic view of the locking device of the present invention in a locked state.
Detailed Description
The invention relates to a reverse mould locking device of an injection mechanism of a one-step injection-stretch-blow hollow forming machine, which comprises a frame 01 consisting of a bottom plate 1, a middle plate 2, a top plate 3 and an upright post 4, wherein the bottom plate 1 is provided with an injection mould cavity 5, a heating mould cavity, a blow mould cavity and a bottle outlet mechanism, the middle plate is provided with a rotary table 9 below, the rotary table corresponding to the injection mould cavity 5 is provided with an injection lip mould 10, the upright post between the corresponding middle plate and the top plate is provided with a core mould plate 11 in a sliding manner, the core mould plate is provided with an injection core mould 12 below, the corresponding top plate is provided with a mould opening and closing oil cylinder 13, an oil cylinder rod 14 of the mould opening and closing oil cylinder 13 is connected with the core mould plate 11 and drives the injection core mould 12 to be matched with the injection lip mould 10 and the injection mould cavity 5, the core mould plate 11 is provided with a reverse ejection oil cylinder 15, the reverse ejection oil cylinder is connected with a reverse ejection rod 16, the top plate 3 is provided with a through hole 17, the reverse ejection rod 16 extends out of the through hole 17, set up locking device 02 on the roof bottom surface of via hole department, locking device include that the bottom surface at roof 3 sets up locking cylinder 20, locking cylinder 20 connects locking cushion 21, sets up two T type baffle 22 in via hole 17 department, all is equipped with draw runner 23 in two T type baffles, during moulding plastics, the mould oil jar 13 that opens and shuts drives core template 11 and moves down, drives anti-ejector pin 16 and moves down to the below of via hole 17, locking cushion 21 blocks up via hole 17, anti-ejector pin 16 reverse top is on locking cushion 21. During production, the core template 11 is driven to descend by the mold opening and closing oil cylinder 13, the core template 11 drives the injection core mold 12 to penetrate through the injection lip mold 10 to be matched with the injection mold cavity 5, mold closing of the injection mold is completed, at the moment, the reverse ejection oil cylinder 15 and the reverse ejection rod 16 which are arranged on the core template 11 move downwards, the reverse ejection rod 16 moves downwards to the position below the through hole 17, then the locking air cylinder 20 works to drive the locking cushion block 21 to be blocked on the through hole 17, then the reverse ejection oil cylinder 15 works to drive the reverse ejection rod 16 to upwards and reversely eject on the locking cushion block 21, and mold locking force is formed on the core template and the injection core mold under the action of reaction force, so that mold expansion during injection molding is prevented. When the scheme is assembled, the mold opening and closing oil cylinder 13 can adopt a small-cylinder-diameter oil cylinder, only the mold opening and closing power is required, the mold locking function is not required to be undertaken, the required energy consumption is greatly saved, and the production cost is reduced. And the reverse ejection oil cylinder 15 can be used as a whole ejector rod to be ejected between the core template 11 and the top plate 3 to play a supporting role to prevent the injection core mold from expanding due to the fact that the mold locking is reversely ejected, energy consumption required by acting is saved, the reverse ejection distance is short, in actual production, the reverse ejector rod moves downwards to about 40mm below the through hole, the through hole is immediately blocked by the locking cushion block, and then the reverse ejection oil cylinder rapidly drives the reverse ejector rod to eject, so that the action is very fast, and the production efficiency of the whole machine can be improved. Two groups of reverse ejection oil cylinders 15 and reverse ejection rods 16 are respectively arranged on two sides of the oil cylinder rod 14, two groups of corresponding locking devices are arranged, the two groups of devices are stable in locking, and the effect is good. The top of the reverse ejector rod 16 is provided with an abrasion-resistant plate 24, so that the abrasion of the reverse ejector rod is prevented.
Claims (3)
1. The reverse mold locking device of the injection mechanism of the one-step injection stretch blow hollow molding machine comprises a frame (01) consisting of a bottom plate (1), a middle plate (2), a top plate (3) and a stand column (4), wherein an injection cavity (5), a heating cavity, a blow molding cavity and a bottle discharging mechanism are arranged on the bottom plate (1), a turntable (9) is arranged below the middle plate, an injection lip mold (10) is arranged on the turntable corresponding to the injection cavity (5), a core mold plate (11) is arranged on the stand column between the corresponding middle plate and the top plate in a sliding manner, an injection core mold (12) is arranged below the core mold plate, an opening and closing mold oil cylinder (13) is arranged on the corresponding top plate, an oil cylinder rod (14) of the opening and closing mold oil cylinder (13) is connected with the core mold plate (11) and drives the injection core mold (12) to be matched with the injection lip mold (10) and the injection cavity (5), and is characterized in that the core mold plate (11) is provided with a reverse top oil cylinder (15), connect anti-ejector pin (16) on the anti-hydro-cylinder that pushes up, set up via hole (17) on roof (3), anti-ejector pin (16) stretch out via hole (17), set up locking device (02) on the roof bottom surface of via hole department, locking device include that the bottom surface in roof (3) sets up locking cylinder (20), locking cylinder (20) are connected locking cushion (21), locate to set up two T type baffle (22) in via hole (17), all be equipped with draw runner (23) in two T type baffles, during moulding plastics, open and shut mould hydro-cylinder (13) drive core template (11) and move down, drive anti-ejector pin (16) and move down to the below of via hole (17), through hole (17) are plugged up in locking cushion (21), anti-ejector pin (16) reverse top is on locking cushion (21).
2. The apparatus for reverse locking mold of injection mechanism of injection stretch blow molding machine according to claim 1, wherein said reverse lift cylinder (15) and reverse lift rod (16) are provided in two sets, respectively, on both sides of cylinder rod (14), and the corresponding locking means are provided in two sets.
3. The apparatus for reverse locking mold of injection mechanism of one-step injection blow molding machine according to claim 1, wherein the top of the reverse ejector rod (16) is provided with a wear-resistant plate (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210083675.1A CN114474629A (en) | 2022-01-25 | 2022-01-25 | Reverse mould locking device for injection mechanism of one-step injection, drawing and blowing hollow forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210083675.1A CN114474629A (en) | 2022-01-25 | 2022-01-25 | Reverse mould locking device for injection mechanism of one-step injection, drawing and blowing hollow forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114474629A true CN114474629A (en) | 2022-05-13 |
Family
ID=81475318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210083675.1A Pending CN114474629A (en) | 2022-01-25 | 2022-01-25 | Reverse mould locking device for injection mechanism of one-step injection, drawing and blowing hollow forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114474629A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011777A (en) * | 2000-06-28 | 2002-01-15 | Nissei Asb Mach Co Ltd | Injection stretch blow molding device |
| JP2003320576A (en) * | 2002-04-30 | 2003-11-11 | Aoki Technical Laboratory Inc | Stretch-blow-molding unit and injection-stretch-blow- molding machine |
| JP2007261151A (en) * | 2006-03-29 | 2007-10-11 | Nissei Asb Mach Co Ltd | Injection-stretch-blow molding machine |
| CN101885234A (en) * | 2010-07-02 | 2010-11-17 | 郝恩政 | Hollow forming machine for injecting, drawing and blowing plastic by one-step method |
| CN102371671A (en) * | 2010-08-13 | 2012-03-14 | 浙江宏振机械模具集团有限公司 | Integral reciprocating injection molding-blow molding machine |
| CN103722730A (en) * | 2013-12-26 | 2014-04-16 | 浙江科力塑料机械有限公司 | Liquid-filled clamping mechanism of plastic injection molding machine |
| CN107097388A (en) * | 2017-06-23 | 2017-08-29 | 潍坊市华玉塑料机械有限公司 | Reverse locking clapper die spotting press |
| CN210100659U (en) * | 2019-03-27 | 2020-02-21 | 中山市精佳包装机械有限公司 | Novel pressure boost injection moulding mechanism and high-efficient bottle blowing machine thereof |
| CN214419539U (en) * | 2020-12-30 | 2021-10-19 | 王振 | Injection-stretch bottle blowing machine |
| CN216992952U (en) * | 2022-01-25 | 2022-07-19 | 浙江科力塑料机械有限公司 | Reverse mould locking device of injection mechanism of one-step injection-stretch-blow hollow molding machine |
-
2022
- 2022-01-25 CN CN202210083675.1A patent/CN114474629A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011777A (en) * | 2000-06-28 | 2002-01-15 | Nissei Asb Mach Co Ltd | Injection stretch blow molding device |
| JP2003320576A (en) * | 2002-04-30 | 2003-11-11 | Aoki Technical Laboratory Inc | Stretch-blow-molding unit and injection-stretch-blow- molding machine |
| JP2007261151A (en) * | 2006-03-29 | 2007-10-11 | Nissei Asb Mach Co Ltd | Injection-stretch-blow molding machine |
| CN101885234A (en) * | 2010-07-02 | 2010-11-17 | 郝恩政 | Hollow forming machine for injecting, drawing and blowing plastic by one-step method |
| CN102371671A (en) * | 2010-08-13 | 2012-03-14 | 浙江宏振机械模具集团有限公司 | Integral reciprocating injection molding-blow molding machine |
| CN103722730A (en) * | 2013-12-26 | 2014-04-16 | 浙江科力塑料机械有限公司 | Liquid-filled clamping mechanism of plastic injection molding machine |
| CN107097388A (en) * | 2017-06-23 | 2017-08-29 | 潍坊市华玉塑料机械有限公司 | Reverse locking clapper die spotting press |
| CN210100659U (en) * | 2019-03-27 | 2020-02-21 | 中山市精佳包装机械有限公司 | Novel pressure boost injection moulding mechanism and high-efficient bottle blowing machine thereof |
| CN214419539U (en) * | 2020-12-30 | 2021-10-19 | 王振 | Injection-stretch bottle blowing machine |
| CN216992952U (en) * | 2022-01-25 | 2022-07-19 | 浙江科力塑料机械有限公司 | Reverse mould locking device of injection mechanism of one-step injection-stretch-blow hollow molding machine |
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