CN110355946B - Assembled bottle lid injection mold - Google Patents
Assembled bottle lid injection mold Download PDFInfo
- Publication number
- CN110355946B CN110355946B CN201910636005.6A CN201910636005A CN110355946B CN 110355946 B CN110355946 B CN 110355946B CN 201910636005 A CN201910636005 A CN 201910636005A CN 110355946 B CN110355946 B CN 110355946B
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- Prior art keywords
- template
- core
- membrane
- round platform
- bottle cap
- Prior art date
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- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 238000001746 injection moulding Methods 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims abstract 3
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- 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
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an assembled bottle cap injection mold which comprises a first template, a second template, a third template, a fourth template, a limiting cylinder, a fixed mold core, a round platform push block, a membrane push block, a gear, a separation core and an injection molding pipe, wherein the first template is a hollow cylinder; this scheme decides the structure of mold core through reasonable design, designs it to cavity form to including the installation round platform, promote stretching out of separating the core through the round platform, make to separate the core and be located spacing snap ring cavity of moulding plastics under the state of moulding plastics, thereby injection moulding round spacing snap ring, under the die sinking state, separate the core and accomodate, make it not block spacing snap ring, thereby make things convenient for holistic die sinking of assembled bottle lid, whole process only need 3-5 seconds can accomplish, very big improvement production efficiency.
Description
Technical Field
The invention relates to the technical bottle cap injection manufacturing field, in particular to an assembled bottle cap injection mold.
Background
The assembled bottle cap is generally a beverage bottle cap, which consists of a bottle cap body and a limit clamping ring, and the bottle cap is opened when the limit clamping ring and the bottle cap are separated. The prior assembled bottle cap is prepared by adopting an injection molding process, which is also called injection molding, and is a molding method of injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation in operation, multiple patterns, various shapes, large size, accurate product size, easy updating of the product, and capability of forming parts with complex shapes, and is suitable for the field of mass production, products with complex shapes and other molding processing. And stirring the completely melted plastic material by a screw at a certain temperature, injecting the plastic material into a die cavity by high pressure, and cooling and solidifying the plastic material to obtain a molded product. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods.
For the production of assembled caps, there are currently two production processes:
the first is to separately injection mold the bottle cap body and the limit snap ring, and then to butt-joint and press to form an assembled bottle cap;
secondly, the bottle cap body and the limit clamping ring are injection molded together, however, the bottle cap body and the limit clamping ring are not finished products, the shape of the bottle cap body is shown in fig. 1, the finished products are shown in fig. 8, and the clamping part on the limit clamping ring is required to be subjected to one-time compression molding to form the bottle cap shown in fig. 8;
in conclusion, the two production processes have two steps, and one step cannot be achieved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an injection mold for an assembled bottle cap, which can realize one-time injection molding of the assembled bottle cap without a subsequent processing technology, thereby saving the production time.
The aim of the invention is realized by the following technical scheme:
an assembled bottle cap injection mold comprises a first template, a second template, a third template, a fourth template, a limiting cylinder, a fixed mold core, a round platform push block, a membrane push block, a gear, a partition core and an injection molding pipe;
the first template, the second template, the third template and the fourth template are spliced in sequence from right to left, the first template and the second template are used as movable moulds, and the injection pipe penetrates through the first template and the second template and is positioned on the end face of the second template;
the third template and the fourth template are used as fixed molds, through holes are formed in the middle of the third template and the fourth template and are used for installing the fixed mold core, and a bottle cap body injection cavity is formed between the outline of the front part of the fixed mold core and the third template and the second template;
a limiting cylinder is fixedly arranged between the rear part of the fixed mold core and the fourth mold plate, and the front end of the limiting cylinder is provided with a limiting snap ring injection cavity;
the membrane is arranged between the limit clamping ring injection molding cavity and the bottle cap body injection molding cavity, and consists of a plurality of fan-shaped mask sheets, and the circumference of the inner side of the membrane is provided with a through hole; the connecting column between the bottle cap body and the limiting snap ring is formed by injection molding between the through holes.
A hollow round platform cavity is formed in the fixed die core, the round platform cavity is internally used for installing the round platform pushing block, an extending groove is formed in the periphery of the round platform cavity, and the isolating core is positioned in the extending groove and provided with a reset component;
in the injection molding state, pushing the round table pushing block leftwards to extend the spacer core along the periphery of the fixed die core and enter the limiting snap ring injection molding cavity to form a circle of spacer ring;
under the state of withdrawing the mould, the round platform pushing block is pushed rightwards, the front end of the separating core is retracted into the extending groove under the action of the resetting component, meanwhile, the membrane is lifted, and then the fixed mould core is rotated so as to withdraw the whole combined bottle cap.
According to the scheme, the diaphragm provided with the through hole is used for completing sectional injection molding one-time molding of the assembled bottle cap, and the partition core is withdrawn after injection molding is completed, so that the partition core is wholly positioned in the extending groove, and the partition core is free of blocking to the limiting snap ring in the mold withdrawal process, so that the disposable injection molding is completed.
Further, a gear is arranged at the end part of the fixed die core, and the gear is driven by a motor to finish the rotation die withdrawal of the fixed die core.
Furthermore, the isolating core is made of high-temperature resistant elastic materials so as to cope with the tiny deformation formed from the extending state to the shrinking state, the isolating core is surrounded by a horn-shaped round table ring, and the diameter of the extending end of the isolating core is slightly larger than that of the rear end, so that if a hard material is adopted, the isolating core is blocked in the extending groove and cannot be withdrawn, and therefore, the high-temperature resistant elastic materials are adopted in the scheme so as to cope with the phenomenon, and micro-extrusion is formed in the withdrawing process so as to cope with the deformation of the diameter change of the isolating core.
Further, the top of the fan-shaped surface membrane extends out of the outer wall of the fourth template and is provided with a through hole;
the through hole is inserted into the wedge-shaped push plate, and the wedge-shaped push plate is pushed to finish lifting the sector membrane in a die-withdrawing state;
or the sector membrane is provided with a telescopic cylinder for completing lifting and resetting of the sector membrane.
Further, the reset component is a compression spring or a scroll spring;
when the reset component is a compression spring, the partition core is provided with a spring limiting block.
Furthermore, the separating core is a sector block with inclined surfaces at the front end and the rear end, so that the sector block is enclosed into a horn shape, and the horn-shaped wide-mouth part is positioned in the limiting snap ring injection cavity to form a ring of separating ring.
Furthermore, the fixed die core at the corresponding position of the injection cavity of the limiting snap ring forms a circle of inclined plane, the end face of the extending groove is positioned on the inclined plane, and the design that the inclined plane can be the snap ring of the limiting snap ring is extruded along the inclined plane so as to withdraw from the fixed die core.
Further, a guide hole is transversely formed in the fixed die core in a penetrating mode, a push rod penetrates through the guide hole and is fixed on the round platform pushing block, the other end of the push rod is controlled by an air cylinder, and left-right pushing of the round platform pushing block is completed.
Furthermore, the fixed die core is formed by assembling half blocks with semicircular end faces, and the structure can be assembled conveniently.
The beneficial effects of the invention are as follows: compared with the prior art, the structure of mould core is decided through reasonable design to this scheme, with its design to cavity form to including the installation round platform, promote stretching out of separating the core through the round platform, make under the state of moulding plastics separate the core and be located spacing snap ring injection molding intracavity, thereby injection moulding round spacing snap ring, under the die sinking state, separate the core and accomodate, make it not block spacing snap ring, thereby make things convenient for holistic die sinking of assembled bottle lid, whole process only need 3-5 seconds can accomplish, very big improvement production efficiency.
Drawings
FIG. 1 is a schematic view of an injection molded structure of a prior art closure;
FIG. 2 is a cross-sectional view of a mold according to the present invention;
FIG. 3 is a cross-sectional view of the stationary mold core of the present invention;
FIG. 4 is a schematic diagram of the structure of the membrane of the present invention;
FIG. 5 is a schematic diagram showing the distribution of the membrane in the die-release state according to the present invention;
FIG. 6 is a schematic view of a mold in an ejected state according to the present invention;
FIG. 7 is a schematic view showing the operation state of the spacer in the mold-release state of the present invention;
fig. 8 is a schematic view of a closure made from the mold of the present invention.
Detailed Description
The technical scheme of the present invention is described in further detail below with reference to specific embodiments, but the scope of the present invention is not limited to the following description.
As shown in fig. 2, the assembled bottle cap injection mold comprises a first template 1, a second template 2, a third template 3, a fourth template 4, a limiting cylinder 5, a fixed mold core 6, a round platform pushing block 7, a membrane 8, a membrane pushing block 9, a gear 10, a spacer 12 and an injection molding pipe 13.
The first template 1, the second template 2, the third template 3 and the fourth template 4 are spliced in sequence from right to left, the second template 2 of the first template 1 is used as a movable mould, and an injection pipe 13 penetrates through the first template 1 and the second template 2 and is positioned at the end face of the second template 2; the third template 3 and the fourth template 4 are used as fixed molds, through holes are formed in the middle of the fixed molds and used for installing the fixed mold cores 6, and a bottle cap body injection cavity 14 is formed between the front outline of the fixed mold cores 6 and the third template 3 and the second template 2; a limiting cylinder 5 is fixedly arranged between the rear part of the fixed mold core 6 and the fourth mold plate 4, and a limiting snap ring injection cavity 15 is formed at the front end of the limiting cylinder 5; the membrane 8 is arranged between the limiting snap ring injection molding cavity 15 and the bottle cap body injection molding cavity 14, the membrane 8 consists of a plurality of sector-shaped membrane 801, and the inner circumference of the membrane is provided with a through hole 803, and the structure of the membrane can be shown by referring to fig. 4.
As shown in fig. 3, the fixed mold core 6 is composed of a front section and a rear section, a circle of inclined plane 604 is formed at the joint of the two sections, the inclined plane 604 is positioned at the corresponding position of the injection molding cavity 15 of the limiting snap ring, a hollow round table cavity 601 is arranged in the fixed mold core 6, an extending groove 602 is formed around the round table cavity 601, the round table cavity 601 is communicated with the extending groove 602, and the end face of the extending groove 602 is positioned on the inclined plane 604. The round platform cavity 601 is internally provided with a round platform pushing block 7, and the partition core 12 is positioned in the extending groove 602 and is provided with a reset component 103;
as shown in fig. 2, in the injection molding state, the round table pushing block 7 is pushed leftwards to extend the spacer 12 along the periphery of the fixed mold core 6 into the limit snap ring injection molding cavity 15 to form a circle of spacer ring;
in the mold-withdrawing state, as shown in fig. 6, the round platform pushing block 7 is pushed rightward, the front end of the partition core 12 is withdrawn into the extending groove 602 under the action of the reset component, meanwhile, the membrane 8 is lifted, and then the mold fixing core 6 is rotated so as to withdraw the whole combined bottle cap.
As a preferred embodiment, a gear 10 is mounted at the end of the fixed die core 6, and the gear 10 is driven by a motor to complete the rotation die withdrawal of the fixed die core 6.
As a preferred embodiment, the spacer 12 is made of an elastic material resistant to high temperature to cope with the amount of minute deformation formed in the contracted state from the extended state.
As a preferred embodiment, the top of the fan-shaped membrane 801 extends out of the outer wall of the fourth template 4 and is provided with a through hole 802; the through hole 802 is inserted into the wedge-shaped push plate 9, and the wedge-shaped push plate 9 is pushed to finish lifting the sector membrane 801 in the die-withdrawing state; or the sector membrane 801 is provided with a telescopic cylinder for completing lifting and resetting of the sector membrane 801, and the membrane 8 is in an open shape in a die-withdrawing state, and the structure can be shown by referring to fig. 5.
As a preferred embodiment, return assembly 103 is a compression spring or a spiral spring; as shown in fig. 7, when the reset component 103 is a compression spring, the spacer 12 is provided with a spring limiting block 102, and in addition, this embodiment provides a more reliable reset component mode, that is, the end of the spacer 12 is hinged to the side surface of the round bench push block 7, and the round bench push block 7 is pushed to pull and push the corresponding spacer 12 to retract and extend.
As a preferred embodiment, the partition core 12 is a sector block with inclined surfaces at the front end and the rear end, so that the sector block encloses a horn shape, and the wide mouth part of the horn shape is positioned in the limit clamping ring injection cavity 15 to form a circle of partition ring.
As a preferred embodiment, the fixed mold core 6 is transversely provided with a guide hole 603 in a penetrating manner, a push rod 11 passes through the guide hole 603 and is fixed on the round platform pushing block 7, the other end of the push rod 11 is controlled by an air cylinder to complete the left and right pushing of the round platform pushing block 7, and the fixed mold core 6 is formed by splicing half blocks with semicircular end faces.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein and is not to be considered as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, as expressed herein, by the foregoing teachings or by the skilled person or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (7)
1. The assembled bottle cap injection mold is characterized by comprising a first template (1), a second template (2), a third template (3), a fourth template (4), a limiting cylinder (5), a fixed mold core (6), a round platform pushing block (7), a membrane (8), a membrane pushing block (9), a gear (10), a separation core (12) and an injection molding pipe (13);
the first template (1), the second template (2), the third template (3) and the fourth template (4) are spliced in sequence from right to left and front to back, the second template (2) of the first template (1) is used as a movable die, and the injection molding pipe (13) penetrates through the first template (1) and the second template (2) and is positioned at the end face of the second template (2);
the third template (3) and the fourth template (4) are used as fixed moulds, through holes are formed in the middle of the third template and the fourth template and are used for installing the fixed mould core (6), and a bottle cap body injection cavity (14) is formed between the front outline of the fixed mould core (6) and the third template (3) and the second template (2);
a limiting cylinder (5) is fixedly arranged between the rear part of the fixed die core (6) and the fourth die plate (4), and a limiting snap ring injection cavity (15) is formed in the front end of the limiting cylinder (5);
the membrane (8) is arranged between the limit clamping ring injection molding cavity (15) and the bottle cap body injection molding cavity (14), the membrane (8) consists of a plurality of sector-shaped membrane (801), and a through hole (803) is formed in the inner circumference of the membrane;
a hollow round platform cavity (601) is formed in the fixed die core (6), the round platform cavity (601) is internally used for installing the round platform pushing block (7), an extending groove (602) is formed in the periphery of the round platform cavity (601), and the isolating core (12) is positioned in the extending groove (602) and provided with a reset component (103);
in the injection molding state, the round platform pushing block (7) is pushed leftwards to extend the partition core (12) along the periphery of the fixed die core (6) into the limit clamping ring injection molding cavity (15) to form a circle of partition ring;
in the die-withdrawing state, the round platform pushing block (7) is pushed rightwards, the front end of the separating core (12) is retracted into the extending groove (602) under the action of the resetting component, meanwhile, the membrane (8) is lifted, and then the fixed die core (6) is rotated so as to withdraw the whole combined bottle cap;
a gear (10) is arranged at the end part of the fixed die core (6), and the gear (10) is driven by a motor to finish the rotation die withdrawal of the fixed die core (6);
the spacer (12) is made of an elastic material resistant to high temperature to cope with the amount of fine deformation formed in the contracted state from the extended state.
2. The injection mold of the assembled bottle cap according to claim 1, wherein the top of the fan-shaped surface membrane (801) extends out of the outer wall of the fourth template (4) and is provided with a through hole (802);
the through hole (802) is inserted into the wedge-shaped push plate (9), and the wedge-shaped push plate (9) is pushed to finish lifting the sector membrane (801) in the die-withdrawing state;
or the sector membrane (801) is provided with a telescopic cylinder for completing lifting and resetting of the sector membrane (801).
3. The injection mold of assembled bottle cap according to claim 1, wherein the return assembly (103) is a compression spring or a spiral spring;
when the reset component (103) is a compression spring, the separation core (12) is provided with a spring limiting block (102).
4. An injection mold for assembled bottle caps according to claim 3, wherein the spacer core (12) is a sector with inclined surfaces at the front and rear ends, so that the sector encloses a horn shape, and the wide mouth part of the horn shape is located in the injection cavity (15) of the limiting snap ring to form a ring of spacer rings.
5. The injection mold for the assembled bottle cap according to claim 1, wherein the fixed mold core (6) at the corresponding position of the limit clamping ring injection cavity (15) forms a circle of inclined surface (604), and the end surface of the extending groove (602) is positioned on the inclined surface (604).
6. The injection mold for the assembled bottle cap according to claim 5, wherein a guide hole (603) is transversely formed through the fixed mold core (6), a push rod (11) penetrates through the guide hole (603) and is fixed on the round platform pushing block (7), and the other end of the push rod (11) is controlled by an air cylinder to push the round platform pushing block (7) left and right.
7. The injection mold for the assembled bottle cap according to claim 1, wherein the fixed mold core (6) is formed by assembling half blocks with semicircular end faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636005.6A CN110355946B (en) | 2019-07-15 | 2019-07-15 | Assembled bottle lid injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636005.6A CN110355946B (en) | 2019-07-15 | 2019-07-15 | Assembled bottle lid injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110355946A CN110355946A (en) | 2019-10-22 |
| CN110355946B true CN110355946B (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910636005.6A Active CN110355946B (en) | 2019-07-15 | 2019-07-15 | Assembled bottle lid injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110355946B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794883A (en) * | 2012-09-14 | 2012-11-28 | 四川省隆鑫科技包装有限公司 | Bottle cap injection mold and bottle cap injection molding method |
| CN202878598U (en) * | 2012-09-14 | 2013-04-17 | 四川省隆鑫科技包装有限公司 | Bottle cap injection molding mould |
| CN103481456A (en) * | 2013-09-17 | 2014-01-01 | 苏州工业园区协利塑胶有限公司 | Injection mold easy to release |
| KR101821996B1 (en) * | 2017-09-27 | 2018-01-25 | (주)에이테크오토모티브 | An injection mold for manufacturing plastic helical gear |
| CN207310407U (en) * | 2017-08-25 | 2018-05-04 | 中山世达模型制造有限公司 | Injection mold for forced-pushing bottle cap |
| CN210389945U (en) * | 2019-07-15 | 2020-04-24 | 宁波市南江制盖有限公司 | Assembled bottle lid injection mold |
-
2019
- 2019-07-15 CN CN201910636005.6A patent/CN110355946B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794883A (en) * | 2012-09-14 | 2012-11-28 | 四川省隆鑫科技包装有限公司 | Bottle cap injection mold and bottle cap injection molding method |
| CN202878598U (en) * | 2012-09-14 | 2013-04-17 | 四川省隆鑫科技包装有限公司 | Bottle cap injection molding mould |
| CN103481456A (en) * | 2013-09-17 | 2014-01-01 | 苏州工业园区协利塑胶有限公司 | Injection mold easy to release |
| CN207310407U (en) * | 2017-08-25 | 2018-05-04 | 中山世达模型制造有限公司 | Injection mold for forced-pushing bottle cap |
| KR101821996B1 (en) * | 2017-09-27 | 2018-01-25 | (주)에이테크오토모티브 | An injection mold for manufacturing plastic helical gear |
| CN210389945U (en) * | 2019-07-15 | 2020-04-24 | 宁波市南江制盖有限公司 | Assembled bottle lid injection mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110355946A (en) | 2019-10-22 |
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