CN114633456B - Plastic bottle forming equipment and plastic bottle blow molding method - Google Patents
Plastic bottle forming equipment and plastic bottle blow molding method Download PDFInfo
- Publication number
- CN114633456B CN114633456B CN202210148875.0A CN202210148875A CN114633456B CN 114633456 B CN114633456 B CN 114633456B CN 202210148875 A CN202210148875 A CN 202210148875A CN 114633456 B CN114633456 B CN 114633456B
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- Prior art keywords
- plastic bottle
- shell
- heating
- cavity
- blow molding
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses plastic bottle forming equipment and a plastic bottle blow molding method, wherein the plastic bottle forming equipment comprises two mold assemblies which can be spliced with each other; the mould subassembly includes the casing, be formed with the cavity in the casing, be provided with the model post in the cavity, be provided with drive arrangement on the casing, drive arrangement can drive the model post uses its self axis to be in as the axle casing internal rotation, one side of model post is inwards sunken to be formed with plastic bottle blowing cavity, and its opposite side is inwards sunken to be formed with the heating chamber, the heating intracavity is provided with the heating fluorescent tube. The problem of current plastic bottle blow molding system, its bottle base heating system and blow molding system separately go on, the bottle base after the heating is in the in-process of transporting to blow molding system, and the bottle base temperature drops easily, leads to the temperature not enough in the blow molding process, influences the blow molding quality is solved.
Description
Technical Field
The invention relates to plastic bottle forming equipment, in particular to plastic bottle forming equipment and a plastic bottle blow molding method.
Background
Blow molding is a common plastic bottle processing method, wherein a tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot (or heated to a softened state), compressed air is immediately introduced into the parison after the mold is closed, so that the plastic parison is blown to cling to the inner wall of the mold, and various hollow products are obtained after cooling and demolding. The existing heating equipment and blow molding equipment are separately arranged, for example, chinese patent No. CN201921730048.2 provides a plastic bottle blank heater for improving the heating effect of bottle blanks, which includes a machine table and a machine case, a far infrared heating tube is installed in the machine case, and a control panel for controlling the far infrared heating tube is arranged on the machine table. The upper surface of board rotates installs two drive sprocket that are driven by the motor, two drive sprocket cooperate through the driving chain, the vertical a plurality of connecting rods that are connected with on the driving chain, the one end that the driving chain was kept away from to the connecting rod rotates and is connected with rotatory sprocket, the last surface mounting of rotatory sprocket has the installation head, the both sides of board upper surface all are provided with the bracing piece, the equal horizontally connect of one end that the board was kept away from to the bracing piece has the rack, the rack parallels and meshes mutually with rotatory sprocket with the position of driving chain linear motion. According to the bottle blank heating device, the rotating chain wheel and the rack are arranged, so that the bottle blank is rotated in the bottle blank transmission process, and the far infrared heating pipe uniformly heats the bottle blank. For another example, the full-automatic plastic stretch blow molding machine heating bottle blank conveying mechanism with the patent number of CN200910006896.3 comprises a template, a mold opening and closing mechanism, a stretch blow mechanism and a heating device which are installed on a rack, wherein the heating device comprises a bottle tube feeding mechanism, a blank inlet, a heating operation system, a blank outlet of the heating device and a conveying mechanism for heating the post-bottle blank, and is characterized in that the heating post-bottle blank conveying mechanism comprises a slide way connected with the blank outlet, one side of the shelf at two sides of the slide way is a long shelf, the other side of the shelf is a short shelf, the shelf is in contact with the mouth of the plastic bottle blank, a blank conveying support is installed on the rack, a sectional driving block and a pushing rod are arranged on the support, the support is driven by an up-and-down moving cylinder, the pushing rod is in contact with the inner mouth of the plastic bottle blank, the left-and-right movement of the driving block is driven by a transverse cylinder, and the driving blocks are connected by positioning rods. In such a plastic bottle blowing system, the preform heating system and the blowing system are separately performed, and the temperature of the heated preform is easily reduced during the transportation of the heated preform to the blowing system, so that the temperature is not sufficient during the blowing process, thereby affecting the quality of the blow molding.
Therefore, the present invention provides a plastic bottle forming apparatus and a plastic bottle blowing method, which can perform a bottle blank heating operation inside a blow molding apparatus, reduce the temperature loss of the bottle blank, and improve the blowing quality.
Disclosure of Invention
The invention aims to provide plastic bottle forming equipment and a plastic bottle blow molding method, which solve the problems that in the existing plastic bottle blow molding system, a bottle blank heating system and a blow molding system are separately carried out, and the temperature of a heated bottle blank is easy to drop in the process of transporting the bottle blank to the blow molding system, so that the temperature is not enough in the blow molding process, and the blow molding quality is influenced.
In order to achieve the above object, the present invention provides a plastic bottle molding apparatus, which includes two mold assemblies that can be spliced with each other;
the mould subassembly includes the casing, be formed with the cavity in the casing, be provided with the model post in the cavity, be provided with drive arrangement on the casing, drive arrangement can drive the model post uses its self axis to be in as the axle casing internal rotation, one side of model post is inwards sunken to be formed with plastic bottle blowing cavity, and its opposite side is inwards sunken to be formed with the heating chamber, the heating intracavity is provided with the heating fluorescent tube.
Preferably, the end of the model column is coaxially connected with a rotating shaft, and the rotating shaft at least partially penetrates through the shell and extends to the upper part of the shell;
the driving device comprises a first gear coaxially fixed on the rotating shaft, a second gear which is rotatably arranged on the surface of the shell and meshed with the first gear, and a rack movably arranged on the surface of the shell;
the rack is at least partially engaged with the second gear.
Preferably, the driving device further comprises a first air cylinder arranged on the surface of the shell, and a piston rod of the first air cylinder is connected with the rack through a connecting rod.
Preferably, the shell is provided with a limiting slide rail, and the rack is clamped on the limiting slide rail in a sliding manner.
Preferably, a sliding groove is formed in the limiting sliding rail along the length direction of the limiting sliding rail, and at least part of the connecting rod penetrates through the sliding groove and is connected with the rack.
Preferably, the plastic bottle molding equipment further comprises a base, the mold assemblies are slidably arranged on the base, and a switch driving assembly is arranged on the base and can drive the two mold assemblies to be close to or far away from each other.
Preferably, a sliding groove is formed on the base;
the switch driving assembly comprises a sliding block which can be clamped on the sliding groove in a sliding mode and a second air cylinder which is arranged on the bottom surface of the base;
one end of the sliding block is connected with the shell, and the other end of the sliding block is connected with a piston rod of the second air cylinder.
Preferably, a wiring groove body is formed in the model column, a wire hole communicated with the wiring groove body is formed in the rotating shaft, and a power line of the heating lamp tube penetrates through the wire hole and at least partially extends to the outside of the shell.
The invention also provides a plastic bottle blow molding method which is carried out by the plastic bottle molding equipment;
the method comprises the following steps: A. the driving device is used for driving the model column to rotate, so that the heating cavity rotates to the inner side of the shell;
B. the switch driving assembly is utilized to drive the two shells to be closed, and the bottle blank is placed into the heating cavity for heating treatment;
C. after the heating treatment is finished, the switch driving assembly is used for driving the two shells to be opened, and the driving device is used for driving the model column to reset, so that the plastic bottle blowing cavity rotates to the inner side of the shells;
D. and the switch driving assembly is used again to drive the two shells to be closed, and the heated bottle blank is subjected to blow molding operation.
The invention provides plastic bottle forming equipment which comprises two mold assemblies capable of being spliced with each other; the mould subassembly includes the casing, be formed with the cavity in the casing, be provided with the model post in the cavity, be provided with drive arrangement on the casing, drive arrangement can drive the model post uses its self axis to be in as the axle casing internal rotation, one side of model post is inwards sunken to be formed with plastic bottle blowing cavity, and its opposite side is inwards sunken to be formed with the heating chamber, the heating intracavity is provided with the heating fluorescent tube. In an initial state, the heating cavity is located on the inner side surface of the shell, when the two shells are in butt joint, the heating cavity is in butt joint, the bottle blank is inserted into the heating cavity by using the bottle blank conveying mechanism, the bottle blank is softened by using the internal heating lamp tube, after the softening is finished, the shell is opened, the model column is rotated to enable the plastic bottle blowing cavity to rotate to the inner side of the shell, the shells are in butt joint again, the softened bottle blank can be rapidly located in the plastic bottle blowing cavity, and then the blow molding operation is carried out.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a structural view of a plastic bottle molding apparatus provided by the present invention;
FIG. 2 is a structural view of a driving device in the plastic bottle molding apparatus provided by the present invention;
FIG. 3 is a block diagram of a switch drive assembly in the plastic bottle forming apparatus provided by the present invention;
fig. 4 is a structural view of a mold column in the plastic bottle molding apparatus provided by the present invention;
FIG. 5 is a side view of the plastic bottle forming apparatus provided by the present invention;
fig. 6 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 5.
Description of the reference numerals
1-a shell; 2-a first cylinder; 3-a connecting rod; 4-a rack; 5-limiting slide rails; 6-a chute; 7-a rotating shaft; 8-a first gear; 9-a second gear; 10-a base; 11-a sliding groove; 12-a second cylinder; 13-a slide block; 14-a power line; 101-a model post; 102-a heating chamber; 103-heating lamp tube; 104-Plastic bottle blow mold cavity.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1-6: the invention provides plastic bottle forming equipment which comprises two mold assemblies capable of being spliced with each other; the mould subassembly includes casing 1, be formed with the cavity in the casing 1, be provided with model post 101 in the cavity, be provided with drive arrangement on the casing 1, drive arrangement can drive model post 101 uses its self axis to be in as the axle 1 internal rotation of casing, one side of model post 101 is inwards sunken to be formed with plastic bottle blowing cavity 104, and its opposite side is inwards sunken to be formed with heating chamber 102, be provided with heating fluorescent tube 103 in the heating chamber 102. In an initial state, the heating cavity is located on the inner side surface of the shell, when the two shells are in butt joint, the heating cavity is in butt joint, the bottle blank is inserted into the heating cavity by using the bottle blank conveying mechanism, the bottle blank is softened by using the internal heating lamp tube, after the softening is finished, the shell is opened, the model column is rotated to enable the plastic bottle blowing cavity to rotate to the inner side of the shell, the shells are in butt joint again, the softened bottle blank can be rapidly located in the plastic bottle blowing cavity, and then the blow molding operation is carried out.
In a preferred embodiment of the present invention, in order to facilitate driving the mold pillar 101 to rotate, thereby completing the rotational docking of the heating cavity 102 and the plastic bottle blowing cavity 104, the end of the mold pillar 101 is coaxially connected with a rotating shaft 7, and the rotating shaft 7 at least partially penetrates through the housing 1 and extends to the upper side thereof;
the driving device comprises a first gear 8 coaxially fixed on the rotating shaft 7, a second gear 9 which is rotatably arranged on the surface of the shell 1 and is meshed with the first gear 8, and a rack 4 which is movably arranged on the surface of the shell 1;
the rack 4 is at least partially engaged with the second gear 9.
In a preferred embodiment of the present invention, in order to drive the rack 4 to reciprocate, thereby pushing the first gear and the second gear to rotate, thereby completing the 180-degree rotation of the mold column 101, the driving device further comprises a first cylinder 2 disposed on the surface of the housing 1, and a piston rod of the first cylinder 2 is connected with the rack 4 through a connecting rod 3.
In a preferred embodiment of the present invention, in order to limit the movement of the rack 4, the displacement distance of the rack 4 can just satisfy 180 degrees of rotation of the driving mold column 101, a limit slide rail 5 is provided on the housing 1, and the rack 4 is slidably engaged with the limit slide rail 5.
In a preferred embodiment of the present invention, in order to limit the displacement of the link 3 and thus stabilize the displacement of the rack 4, the limit slide 5 is formed with a slide groove 6 along the length direction thereof, and the link 3 at least partially penetrates the slide groove 6 and is connected to the rack 4.
In a preferred embodiment of the present invention, the plastic bottle forming apparatus further includes a base 10, the mold assemblies are slidably disposed on the base 10, and a switch driving assembly is disposed on the base 10 and can drive the two mold assemblies to approach or move away from each other.
In a preferred embodiment of the present invention, in order to facilitate the closing of the switches of the two housings 1, the base 10 is formed with a sliding groove 11;
the switch driving assembly comprises a sliding block 13 which can be clamped on the sliding groove 11 in a sliding way and a second air cylinder 12 which is arranged on the bottom surface of the base 10;
one end of the sliding block 13 is connected with the shell 1, and the other end is connected with a piston rod of the second cylinder 12.
In a preferred embodiment of the present invention, in order to facilitate the wiring of the heating lamp 103 in the model column 101, power is provided to the heating lamp 103, a wiring groove body is formed in the model column 101, the rotating shaft 7 is internally formed with a wire hole communicated with the wiring groove body, and the power wire 14 of the heating lamp 103 penetrates through the wire hole and at least partially extends to the outside of the housing 1.
The invention also provides a plastic bottle blow molding method which is carried out by the plastic bottle molding equipment;
the method comprises the following steps: A. driving the mold pillar 101 to rotate by the driving device, so that the heating cavity 102 rotates to the inner side of the housing 1;
B. the switch driving assembly is utilized to drive the two shells 1 to be closed, and the bottle blank is placed into the heating cavity 102 for heating treatment;
C. after the heating treatment is finished, the switch driving assembly is used for driving the two shells 1 to be opened, and the driving device is used for driving the mold column 101 to reset, so that the plastic bottle blowing cavity 104 rotates to the inner side of the shells 1;
D. and the switch driving assembly is used again to drive the two shells 1 to be closed, and the heated bottle blank is subjected to blow molding operation.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications all fall within the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention can be made, and the same should be considered as the disclosure of the present invention as long as the idea of the present invention is not violated.
Claims (5)
1. The plastic bottle forming equipment is characterized by comprising two mold assemblies which can be spliced with each other;
the mold assembly comprises a shell (1), a cavity is formed in the shell (1), a mold column (101) is arranged in the cavity, a driving device is arranged on the shell (1), the driving device can drive the mold column (101) to rotate in the shell (1) by taking the axis of the mold column as an axis, one side of the mold column (101) is inwards recessed to form a plastic bottle blowing cavity (104), the other side of the mold column is inwards recessed to form a heating cavity (102), and a heating lamp tube (103) is arranged in the heating cavity (102); the end part of the model column (101) is coaxially connected with a rotating shaft (7), and at least part of the rotating shaft (7) penetrates through the shell (1) and extends to the upper part of the shell;
the driving device comprises a first gear (8) coaxially fixed on the rotating shaft (7), a second gear (9) rotatably arranged on the surface of the shell (1) and meshed with the first gear (8), and a rack (4) movably arranged on the surface of the shell (1);
the rack (4) is at least partially meshed with the second gear (9); the driving device further comprises a first air cylinder (2) arranged on the surface of the shell (1), and a piston rod of the first air cylinder (2) is connected with the rack (4) through a connecting rod (3); a limiting slide rail (5) is arranged on the shell (1), and the rack (4) is slidably clamped on the limiting slide rail (5); the limiting slide rail (5) is provided with a slide groove (6) along the length direction of the limiting slide rail, and at least part of the connecting rod (3) penetrates through the slide groove (6) and is connected with the rack (4).
2. The plastic bottle molding apparatus of claim 1, further comprising a base (10), said mold assemblies being slidably disposed on said base (10), said base (10) having a switch drive assembly disposed thereon, said switch drive assembly being capable of moving said two mold assemblies toward or away from each other.
3. The plastic bottle forming apparatus of claim 2, wherein the base (10) has a sliding groove (11) formed thereon;
the switch driving assembly comprises a sliding block (13) which can be clamped on the sliding groove (11) in a sliding mode, and a second air cylinder (12) which is arranged on the bottom surface of the base (10);
one end of the sliding block (13) is connected with the shell (1), and the other end of the sliding block is connected with a piston rod of the second air cylinder (12).
4. The plastic bottle molding equipment according to claim 3, wherein a wiring groove body is formed in the model column (101), the rotating shaft (7) is internally provided with a wire hole communicated with the wiring groove body, and the power wire (14) of the heating lamp tube (103) penetrates through the wire hole and at least partially extends to the outside of the shell (1).
5. A method for blow-molding a plastic bottle, characterized in that the method for blow-molding a plastic bottle is performed by using the plastic bottle molding apparatus according to any one of claims 1 to 4;
the method comprises the following steps: A. driving the model column (101) to rotate by using a driving device, so that the heating cavity (102) rotates to the inner side of the shell (1);
B. the switch driving assembly is utilized to drive the two shells (1) to be closed, and the bottle blank is placed into the heating cavity (102) for heating treatment;
C. after the heating treatment is finished, the switch driving assembly is used for driving the two shells (1) to be opened, and the driving device is used for driving the mold column (101) to reset, so that the plastic bottle blowing cavity (104) rotates to the inner side of the shells (1);
D. and the switch driving assembly is used again to drive the two shells (1) to be closed, and the heated bottle blank is subjected to blow molding operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148875.0A CN114633456B (en) | 2022-02-18 | 2022-02-18 | Plastic bottle forming equipment and plastic bottle blow molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148875.0A CN114633456B (en) | 2022-02-18 | 2022-02-18 | Plastic bottle forming equipment and plastic bottle blow molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114633456A CN114633456A (en) | 2022-06-17 |
| CN114633456B true CN114633456B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210148875.0A Active CN114633456B (en) | 2022-02-18 | 2022-02-18 | Plastic bottle forming equipment and plastic bottle blow molding method |
Country Status (1)
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| CN (1) | CN114633456B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428735B1 (en) * | 1999-02-26 | 2002-08-06 | Schmalbach-Lubeca Ag | Method for making a carbonated soft drink bottle with an internal web and hand-grip feature |
| JP3081527U (en) * | 2001-03-30 | 2001-11-09 | 合黙鱗開發有限公司 | Structure of plastic bottle core blow molding machine |
| CN205326252U (en) * | 2016-01-07 | 2016-06-22 | 深圳市东川华特科技有限公司 | Blowing structure of bottle blowing machine |
| CN112172041A (en) * | 2020-10-16 | 2021-01-05 | 无锡凯利鼎自动化设备有限公司 | Injection mold |
| CN215661800U (en) * | 2021-02-02 | 2022-01-28 | 东莞乐必善智能科技有限公司 | Bottle blank internal and external heating blow molding die and one-step injection, drawing and blowing molding integrated machine |
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- 2022-02-18 CN CN202210148875.0A patent/CN114633456B/en active Active
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| CN114633456A (en) | 2022-06-17 |
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Denomination of invention: A plastic bottle forming equipment and a plastic bottle blowing method Effective date of registration: 20230106 Granted publication date: 20221209 Pledgee: Huizhou bank Limited by Share Ltd. Ma'anshan Jiangdong Branch Pledgor: MAANSHAN KANGFU PLASTIC PRODUCT Co.,Ltd. Registration number: Y2023980030414 |
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