CN113021792A - Air-floating type injection mold stripping device and method - Google Patents
Air-floating type injection mold stripping device and method Download PDFInfo
- Publication number
- CN113021792A CN113021792A CN202110276381.6A CN202110276381A CN113021792A CN 113021792 A CN113021792 A CN 113021792A CN 202110276381 A CN202110276381 A CN 202110276381A CN 113021792 A CN113021792 A CN 113021792A
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- Prior art keywords
- air
- floating
- floating rod
- rod
- lower die
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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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
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention relates to an air-floating injection mould stripping device, which comprises a lower die base, wherein a lower die core is arranged on the lower die base, an inflation cavity is arranged in the lower die base, and the inflation cavity is connected with an air pumping and discharging assembly through a pipeline; the inflation cavity is communicated with the inner cavity of the lower die core through a plurality of longitudinal connecting holes, and an air floatation assembly is arranged in each connecting hole; the air floatation assembly comprises a first floating rod and a second floating rod, and the first floating rod and the second floating rod are connected through a spring; a first piston ring is fixedly sleeved on the outer side surface of the first floating rod, and a second piston ring is fixedly sleeved on the outer side surface of the second floating rod; a first piston sleeve and a second piston sleeve are arranged inside the connecting hole; the upper end of the first floating rod is coaxially and detachably connected with a material ejecting head; the upper end of the connecting hole is provided with an annular step, and the bottom surface of the annular step is provided with a sealing gasket; the jacking has good air tightness, high jacking acting force uniformity, good applicability, easy assembly and debugging, small overall height and greatly reduced processing cost.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an air-floating type injection mold stripping device and method.
Background
The injection mould is one of the most common processing equipment in the production process of plastic products, the currently adopted injection mould is usually processed by adopting a hard thimble, the air tightness is difficult to guarantee, the height of the whole material ejection part is usually higher, the processing difficulty is higher, and the cost is higher.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air-floating type injection mold stripping device and method aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
constructing an air-floating injection mold stripping device, which comprises a lower die base, wherein a lower die core is arranged on the lower die base, an inflation cavity is arranged inside the lower die base and is positioned right below the lower die core, and the inflation cavity is connected with an air pumping and discharging assembly for pumping and discharging air inside the inflation cavity through a pipeline; the inflatable cavity is communicated with the inner cavity of the lower die core through a plurality of longitudinal connecting holes, and an air floatation assembly is arranged in each connecting hole; the air floatation assembly comprises a first floating rod and a second floating rod which are arranged up and down, the first floating rod and the second floating rod are connected through a spring, and the height of the middle position of the spring is the same as that of the bottom surface of the lower die core; a first piston ring is fixedly sleeved on the outer side surface of the first floating rod, and a second piston ring is fixedly sleeved on the outer side surface of the second floating rod; a first piston sleeve matched with the first piston ring and a second piston sleeve matched with the second piston ring are arranged inside the connecting hole; the upper end of the first floating rod is coaxially detachably connected with a material ejection head, and the edge of the material ejection head exceeds the upper end of the first floating rod; the upper end of the connecting hole is provided with an annular step matched with the size of the material ejecting head, and the bottom surface of the annular step is provided with a sealing gasket.
The air-floating injection mold stripping device provided by the invention is characterized in that the bottom end of the second floating rod is connected with a limiting rod, and the outer diameter of the limiting rod is smaller than that of the second floating rod.
The air-floating injection mold stripping device is characterized in that the limiting rod is coaxially and threadedly connected with the second floating rod, and a screw hole for assembling the limiting rod and adjusting the assembling depth is formed in the bottom end of the second floating rod.
The air-floating injection mold stripping device is characterized in that a plurality of connecting holes are uniformly distributed.
The invention relates to an air-floating injection mold stripping device, wherein an annular heating sleeve is embedded in the inner wall of an annular step.
The air-floating injection mold stripping device is characterized in that the bottom surface of the annular step is obliquely arranged, and the inner wall of the lower end of the annular step is provided with an air suction hole; the air exhaust hole is connected with an air exhaust assembly through an air exhaust pipe.
According to the air-floating injection mold stripping device, the heating sleeve is obliquely arranged, and the inclination direction and the inclination angle of the heating sleeve are consistent with those of the bottom surface of the annular step; the air suction hole is arranged on the heating sleeve.
The air-floating injection mold stripping method is implemented by applying the air-floating injection mold stripping device as follows:
when injection molding is carried out, the inflation cavity is pumped through the air pumping and discharging assembly, the second piston ring can descend to the lowest stroke position in the second piston sleeve when the air pressure in the inflation cavity is reduced, the second floating rod descends, the elastic force of the spring acts on the first floating rod, the first floating rod is subjected to continuous downward pulling force, and the material ejecting head is enabled to keep the state of pressing the sealing gasket for sealing;
after the completion of moulding plastics, aerify the plenum chamber through taking out the subassembly of releasing gas, the plenum chamber internal gas pressure rise simultaneously can make the second piston ring go upward to the highest stroke position in the second piston cover, the second floating rod goes upward and makes the spring compressed only the biggest compressible state after, the power of pushing up directly acts on first floating rod for first floating rod atress rises, carries out the liftout action.
The invention has the beneficial effects that: when injection molding is carried out, the inflation cavity is pumped through the air pumping and discharging assembly, the second piston ring can descend to the lowest stroke position in the second piston sleeve when the air pressure in the inflation cavity is reduced, the second floating rod descends, the elastic force of the spring acts on the first floating rod, the first floating rod is subjected to continuous downward pulling force, and the material ejecting head is enabled to keep the state of pressing the sealing gasket for sealing; after injection molding is finished, the inflation cavity is inflated through the air pumping and releasing assembly, the second piston ring can ascend to the highest stroke position in the second piston sleeve when the air pressure in the inflation cavity is increased, and after the second floating rod ascends to enable the spring to be compressed only in the maximum compressible state, the upward pushing force directly acts on the first floating rod, so that the first floating rod is stressed to ascend, and ejection is executed; the jacking has good air tightness, high jacking acting force uniformity, good applicability, easy assembly and debugging, small overall height and greatly reduced processing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a schematic view of the material stripping device of the air-floating injection mold according to the preferred embodiment of the present invention;
FIG. 2 is an enlarged view of the air floating assembly of the air floating type injection mold stripping device according to the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
The air-floating injection mold stripping device according to the preferred embodiment of the invention is shown in fig. 1, and also refers to fig. 2, and comprises a lower die base 1, wherein a lower die core 2 is arranged on the lower die base 1, an inflation chamber 3 positioned right below the lower die core is arranged in the lower die base 1, and the inflation chamber 3 is connected with an air pumping and discharging component for pumping and discharging air in the inflation chamber through a pipeline 4; the inflation cavity 3 is communicated with the inner cavity of the lower mold core 2 through a plurality of longitudinal connecting holes 5, and an air floatation assembly 6 is arranged in each connecting hole 5; the air floatation assembly 6 comprises a first floating rod 60 and a second floating rod 61 which are arranged up and down, the first floating rod 60 and the second floating rod 61 are connected through a spring 62, and the height of the middle position of the spring 62 is the same as the height of the bottom surface of the lower mold core 2; the outer side surface of the first floating rod 60 is fixedly sleeved with a first piston ring 600, and the outer side surface of the second floating rod 61 is fixedly sleeved with a second piston ring 610; a first piston sleeve 50 matched with the first piston ring 600 and a second piston sleeve 51 matched with the second piston ring 610 are arranged inside the connecting hole 5; the upper end of the first floating rod 60 is coaxially and detachably connected with a material ejecting head 63, and the edge of the material ejecting head 63 exceeds the upper end of the first floating rod 60; the upper end of the connecting hole 5 is provided with an annular step 52 matched with the ejector 63 in size, and the bottom surface of the annular step 52 is provided with a sealing gasket 53;
when injection molding is carried out, the inflation cavity 3 is pumped through the air pumping and discharging assembly, the second piston ring 610 descends to the lowest stroke position in the second piston sleeve 51 while the air pressure in the inflation cavity 3 is reduced, the second floating rod 61 descends, the elastic force of the spring 62 acts on the first floating rod 60, the first floating rod 60 is subjected to a continuous downward pulling force, and the material ejection head 63 keeps a state of pressing a sealing gasket for sealing; after injection molding is finished, the inflation chamber 3 is inflated through the air pumping and releasing assembly, the second piston ring 610 can move upwards to the highest stroke position in the second piston sleeve 51 when the air pressure in the inflation chamber 3 is increased, the second floating rod 61 moves upwards to enable the spring 62 to be compressed in the maximum compressible state, and the force of pushing upwards directly acts on the first floating rod 60, so that the first floating rod 60 is forced to rise to perform a material ejecting action; the first piston ring is matched with the first piston sleeve, so that the air tightness is improved, and the movement stability of the first floating rod is improved; the jacking has good air tightness, high jacking acting force uniformity, good applicability, easy assembly and debugging, small overall height and greatly reduced processing cost.
Preferably, the bottom end of the second floating rod 61 is connected with a limiting rod 64, and the outer diameter of the limiting rod 64 is smaller than that of the second floating rod 61; the second floating rod 61 is convenient to limit the downward moving position, and when the second floating rod is in the limiting state, the bottom end of the limiting rod 64 is tightly propped against the inner bottom surface of the inflating cavity.
Preferably, the limit rod 64 is coaxially and threadedly connected with the second floating rod 61, and a screw hole 611 for assembling the limit rod 64 and adjusting the assembling depth is formed in the bottom end of the second floating rod 61; the exposed length of the limiting rod can be conveniently and rapidly adjusted, and then the limiting stroke can be rapidly adjusted.
Preferably, the connecting holes 5 are uniformly distributed, and the stress uniformity is good.
Preferably, the inner wall of the annular step 52 is embedded with an annular heating sleeve 7; the bottom surface of the annular step 52 is obliquely arranged, and the inner wall of the lower end of the annular step is provided with an air suction hole; the air exhaust hole is connected with an air exhaust component through an air exhaust pipe 8; the heating sleeve 7 is obliquely arranged, and the inclination direction and the inclination angle of the heating sleeve are consistent with those of the bottom surface of the annular step; the air exhaust hole is arranged on the heating sleeve 7; when glue exists in the annular step, the heating sleeve 7 is electrified to generate heat to soften the glue, and then the softened glue is sucked and removed through the air exhaust hole.
The air-floating injection mold stripping method is implemented by applying the air-floating injection mold stripping device as follows:
when injection molding is carried out, the inflation cavity is pumped through the air pumping and discharging assembly, the second piston ring can descend to the lowest stroke position in the second piston sleeve when the air pressure in the inflation cavity is reduced, the second floating rod descends, the elastic force of the spring acts on the first floating rod, the first floating rod is subjected to continuous downward pulling force, and the material ejecting head is enabled to keep the state of pressing the sealing gasket for sealing;
after injection molding is finished, the inflation cavity is inflated through the air pumping and releasing assembly, the second piston ring can ascend to the highest stroke position in the second piston sleeve when the air pressure in the inflation cavity is increased, and after the second floating rod ascends to enable the spring to be compressed only in the maximum compressible state, the upward pushing force directly acts on the first floating rod, so that the first floating rod is stressed to ascend, and ejection is executed;
the jacking has good air tightness, high jacking acting force uniformity, good applicability, easy assembly and debugging, small overall height and greatly reduced processing cost.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. The air-floating injection mold stripping device comprises a lower die base, wherein a lower die core is arranged on the lower die base, and the air-floating injection mold stripping device is characterized in that an inflation cavity is arranged inside the lower die base and is positioned right below the lower die core, and the inflation cavity is connected with an air pumping and discharging assembly for pumping and discharging air inside the inflation cavity through a pipeline; the inflatable cavity is communicated with the inner cavity of the lower die core through a plurality of longitudinal connecting holes, and an air floatation assembly is arranged in each connecting hole; the air floatation assembly comprises a first floating rod and a second floating rod which are arranged up and down, the first floating rod and the second floating rod are connected through a spring, and the height of the middle position of the spring is the same as that of the bottom surface of the lower die core; a first piston ring is fixedly sleeved on the outer side surface of the first floating rod, and a second piston ring is fixedly sleeved on the outer side surface of the second floating rod; a first piston sleeve matched with the first piston ring and a second piston sleeve matched with the second piston ring are arranged inside the connecting hole; the upper end of the first floating rod is coaxially detachably connected with a material ejection head, and the edge of the material ejection head exceeds the upper end of the first floating rod; the upper end of the connecting hole is provided with an annular step matched with the size of the material ejecting head, and the bottom surface of the annular step is provided with a sealing gasket.
2. The air-floating injection mold stripping device according to claim 1, wherein a limiting rod is connected to the bottom end of the second floating rod, and the outer diameter of the limiting rod is smaller than that of the second floating rod.
3. The air-floating injection mold stripping device as claimed in claim 2, wherein the limiting rod is coaxially and threadedly connected with the second floating rod, and a screw hole for assembling the limiting rod and adjusting the assembling depth is formed in the bottom end of the second floating rod.
4. The air-floating injection mold stripping device of claim 1, wherein a plurality of the connecting holes are evenly distributed.
5. The air-floating injection mold stripping device as claimed in any one of claims 1 to 4, wherein an annular heating jacket is embedded in the inner wall of the annular step.
6. The air-floating injection mold stripping device according to claim 5, wherein the bottom surface of the annular step is obliquely arranged, and the inner wall of the lower end of the annular step is provided with an air suction hole; the air exhaust hole is connected with an air exhaust assembly through an air exhaust pipe.
7. The air-floating injection mold stripping device as claimed in claim 6, wherein the heat-generating sleeve is obliquely arranged and has an inclination direction and an inclination angle consistent with those of the bottom surface of the annular step; the air suction hole is arranged on the heating sleeve.
8. An air-floating injection mold stripping method, which is implemented by applying the air-floating injection mold stripping device as claimed in any one of claims 1 to 7, and is characterized in that the method comprises the following steps:
when injection molding is carried out, the inflation cavity is pumped through the air pumping and discharging assembly, the second piston ring can descend to the lowest stroke position in the second piston sleeve when the air pressure in the inflation cavity is reduced, the second floating rod descends, the elastic force of the spring acts on the first floating rod, the first floating rod is subjected to continuous downward pulling force, and the material ejecting head is enabled to keep the state of pressing the sealing gasket for sealing;
after the completion of moulding plastics, aerify the plenum chamber through taking out the subassembly of releasing gas, the plenum chamber internal gas pressure rise simultaneously can make the second piston ring go upward to the highest stroke position in the second piston cover, the second floating rod goes upward and makes the spring compressed only the biggest compressible state after, the power of pushing up directly acts on first floating rod for first floating rod atress rises, carries out the liftout action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276381.6A CN113021792B (en) | 2021-03-15 | 2021-03-15 | Air-floating type injection mold stripping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276381.6A CN113021792B (en) | 2021-03-15 | 2021-03-15 | Air-floating type injection mold stripping device and method |
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| Publication Number | Publication Date |
|---|---|
| CN113021792A true CN113021792A (en) | 2021-06-25 |
| CN113021792B CN113021792B (en) | 2023-03-28 |
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| CN202110276381.6A Active CN113021792B (en) | 2021-03-15 | 2021-03-15 | Air-floating type injection mold stripping device and method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207224514U (en) * | 2017-09-27 | 2018-04-13 | 宁海县大雅精密机械有限公司 | The Multifunctional, air top component of suction integral type in a kind of plastic mould |
| CN108501316A (en) * | 2018-04-21 | 2018-09-07 | 玫瑰塑胶(昆山)有限公司 | A kind of pneumatic de- material mold |
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2021
- 2021-03-15 CN CN202110276381.6A patent/CN113021792B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207224514U (en) * | 2017-09-27 | 2018-04-13 | 宁海县大雅精密机械有限公司 | The Multifunctional, air top component of suction integral type in a kind of plastic mould |
| CN108501316A (en) * | 2018-04-21 | 2018-09-07 | 玫瑰塑胶(昆山)有限公司 | A kind of pneumatic de- material mold |
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| Publication number | Publication date |
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| CN113021792B (en) | 2023-03-28 |
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