Injection-stretch-blow hollow forming hot runner mold assembly of three-station all-in-one machine

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an injection-stretch-blow hollow forming hot runner mold assembly of a three-station all-in-one machine. The device comprises an injection molding machine fixing seat, a blow molding machine fixing seat and a mouth mold fixing seat. In the injection molding process, firstly, molten materials are injected into the injection molding pipe barrel through the injection molding machine connecting piece, the bottle blank forming piece is used for forming the bottle blank piece, stretching is conducted, the stretched bottle blank piece is taken out and placed in the blow molding cavity between the two blow molding templates, blow molding is conducted on the bottle blank piece through the blow molding piece, and after blow molding is completed, the bottle blank piece is placed in the blow molding cavity between the two blow molding templates. A bottle body is placed in the mouth mold fixing seat, a bottle mouth thread structure of the bottle body is formed through the bottle mouth thread forming structure, a three-station integrated structure is adopted, the assembly is high, injection, drawing, blowing and thread forming processes are carried out in sequence, the automation degree is high, and the labor intensity of workers is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a hot runner mold component for a three-station integrated injection-stretch-blow hollow forming machine. Background Art

[0002] Existing glass bottle injection molds require injection molding, blow molding, and subsequent finishing processes such as threading. Each step requires significant manual effort, making it difficult to integrate multiple stations. The level of automation is limited, and the labor intensity is high. Therefore, there is an urgent need to design a three-station, all-in-one injection, stretch, and blow molding hot runner mold assembly that overcomes these limitations.

[0003] In order to overcome the shortcomings of the existing technology, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a new type of PET bottle injection blow molding mold [application number: 201220679250.9], which includes a mold A surface, a mold B surface matching the mold A surface, and a mold bottle bottom arranged below the mold A surface and the mold B surface. The mold A surface is provided with a bottle body cavity, the mold A surface is provided with an inner buckle structure, and the mold bottle bottom is provided with a plurality of exhaust pins. The inner buckle structure includes a cylinder, a connecting rod, a crank, a handle insert, and an inner buckle core. The cylinder is screwed to the mold A surface by screws, and the cylinder is connected to the crank by a connecting rod. The crank is assembled and connected to the inner buckle core, and the crank is arranged in the handle insert. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a three-station integrated machine injection stretch blow molding hot runner mold assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A three-station integrated injection stretch blow molding hot runner mold assembly includes an injection molding machine fixing seat, a blow molding machine fixing seat and a mouth mold fixing seat, an injection molding machine connecting piece is provided above the injection molding machine fixing seat, an injection molding tube connected to the injection molding machine connecting piece is provided below the injection molding machine fixing seat, a bottle blank molding piece is provided at the bottom of the injection molding tube, two blow molding templates are provided below the blow molding machine fixing seat, a blow molding chamber is formed between the two blow molding templates, a blow molding piece extending into the blow molding chamber is provided between the blow molding machine fixing seat and the blow molding template, and a bottle mouth thread molding structure is provided in the mouth mold fixing seat.

[0007] In the above-mentioned three-station integrated injection stretch blow molding hot runner mold assembly, the injection molding machine connecting part includes an injection molding machine connecting platform arranged above the injection molding machine fixing seat, and an injection molding machine connecting pipe is provided on the back of the injection molding machine connecting platform, and the top of the injection molding tube extends into the injection molding machine connecting platform.

[0008] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, an injection tube fixing template is provided below the injection molding machine fixing seat, and the injection tube passes through the injection tube fixing template.

[0009] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, the preform molding part includes a material output platform arranged at the bottom of the injection molding tube, and a plurality of output pipe openings are provided at the bottom of the material output platform.

[0010] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, the blow molding part includes a blow molding tube arranged between the blow molding machine fixing seat and the blow molding template, and a blow molding air outlet pipe extending into the blow molding chamber is provided at the bottom of the blow molding tube.

[0011] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, the diameter of the blow molding outlet pipe is smaller than the diameter of the blow molding tube.

[0012] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, two fixing clamps for fixing the blow molding tube are provided between the blow molding machine fixing seat and the blow molding template.

[0013] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, a blow molding air inlet pipe passing through the blow molding machine fixing seat is provided on the top of the blow molding tube, and a fixed horizontal plate is provided on the top of the blow molding air inlet pipe.

[0014] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, the bottle mouth thread molding structure includes two thread molding outer cylinders arranged in the mouth mold fixing seat, and the thread molding outer cylinders have thread molding textures.

[0015] In the above-mentioned three-station integrated machine injection stretch blow molding hot runner mold assembly, a fixed bracket is provided above the die fixing seat, and a push cylinder and a push rod extending into the threaded molding outer cylinder are provided in the fixed bracket.

[0016] Compared with the existing technology, the advantages of this utility model are:

[0017] 1. In the injection molding process of the utility model, the molten material is first injected into the injection molding tube through the injection molding machine connector, and the preform is formed into a bottle preform through the bottle preform forming part, which is then stretched. The stretched bottle preform is taken out and placed in the blow molding chamber between two blow molding templates. The bottle preform is blow-molded by the blow molding part. After the blow molding is completed, the bottle body is placed in the mouth mold fixing seat, and the bottle mouth thread structure of the bottle body is formed by the bottle mouth thread forming structure. The device adopts a three-station integrated structure with high coordination, and performs the injection, stretching, blowing and thread forming processes in sequence. The degree of automation is high, which greatly reduces the labor intensity.

[0018] 2. The utility model places the bottle mouth of the bottle body in the thread forming outer cylinder, and uses the thread forming texture to form the outer thread of the bottle mouth of the bottle body. After forming, the bottle body is pushed downward by the pushing cylinder and the pushing rod and falls onto the conveyor belt.

[0019] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a partial structural diagram of the utility model.

[0022] Figure 3 It is a partial structural diagram of another direction of the utility model.

[0023] Figure 4 It is a partial structural diagram of another direction of the utility model.

[0024] In the figure: injection molding machine fixing base 1, blow molding machine fixing base 2, die fixing base 3, injection molding machine connecting part 4, injection molding tube 5, bottle blank molding part 6, blow molding template 7, blow molding chamber 8, blow molding part 88, bottle mouth thread molding structure 9, injection molding machine connecting platform 10, injection molding machine connecting pipe 11, injection molding tube fixing template 12, material output platform 13, output pipe mouth 14, blow molding tube 15, blow molding outlet pipe 16, fixed splint 17, blow molding air inlet pipe 18, fixed cross plate 19, thread molding outer cylinder 20, thread molding texture 21, fixed bracket 22, push barrel 23, push rod 24. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, a three-station integrated injection stretch blow molding hot runner mold assembly includes an injection molding machine fixing seat 1, a blow molding machine fixing seat 2 and a mouth mold fixing seat 3. An injection molding machine connecting piece 4 is provided above the injection molding machine fixing seat 1, an injection molding tube 5 connected to the injection molding machine connecting piece 4 is provided below the injection molding machine fixing seat 1, a bottle blank molding part 6 is provided at the bottom of the injection molding tube 5, two blow molding templates 7 are provided below the blow molding machine fixing seat 2, and a blow molding cavity 8 is formed between the two blow molding templates 7, a blow molding part 88 extending into the blow molding cavity 8 is provided between the blow molding machine fixing seat 2 and the blow molding template 7, and a bottle mouth thread molding structure 9 is provided in the mouth mold fixing seat 3.

[0027] In this embodiment, during the injection molding process, the molten material is first injected into the injection molding tube 5 through the injection molding machine connector 4, and is formed into a bottle preform part through the bottle preform forming part 6, which is then stretched. The stretched bottle preform part is taken out and placed in the blow molding chamber 8 between the two blow molding templates 7. The bottle preform part is blow-molded by the blow molding part 88. After the blow molding is completed, the bottle body is placed in the mouth mold fixing seat 3, and the bottle mouth thread structure of the bottle body is formed by the bottle mouth thread forming structure 9. This device adopts a three-station integrated structure with high coordination, and performs the injection, stretching, blowing and thread molding processes in sequence. The degree of automation is high, which greatly reduces the labor intensity.

[0028] Combine Figure 1-4 As shown, the injection molding machine connecting part 4 includes an injection molding machine connecting platform 10 arranged above the injection molding machine fixing seat 1, an injection molding machine connecting pipe 11 is provided on the back of the injection molding machine connecting platform 10, and the top of the injection molding tube 5 extends into the injection molding machine connecting platform 10.

[0029] Specifically, the injection molding machine connecting platform 10 is used to connect and fix the injection molding machine connecting pipe 11 and the injection molding barrel 5 , and the molten material is injected into the injection molding machine connecting platform 10 through the injection molding machine connecting pipe 11 and then injected into the injection molding cavity through the injection molding barrel 5 .

[0030] An injection molding tube fixing template 12 is provided below the injection molding machine fixing seat 1 , and the injection molding tube 5 passes through the injection molding tube fixing template 12 .

[0031] In this embodiment, the injection molding tube fixing template 12 is used to clamp and fix the injection molding tube 5 to prevent the injection molding tube 5 from shaking during the injection molding process.

[0032] Combine Figure 1 、 Figure 2 As shown, the preform molded part 6 includes a material output platform 13 arranged at the bottom of the injection tube 5, and a plurality of output nozzles 14 are provided at the bottom of the material output platform 13.

[0033] In this embodiment, the molten material is injected into the injection cavity through the material output platform 13 and the output nozzle 14. After the injection molding is completed, the base below the material output platform 13 is pulled down to stretch the bottle embryo to facilitate subsequent blow molding.

[0034] The blow molding part 88 includes a blow molding tube 15 arranged between the blow molding machine fixed seat 2 and the blow molding template 7, and a blow molding air outlet pipe 16 extending into the blow molding chamber 8 is provided at the bottom of the blow molding tube 15, and the diameter of the blow molding air outlet pipe 16 is smaller than the diameter of the blow molding tube 15, and a blow molding air inlet pipe 18 passing through the blow molding machine fixed seat 2 is provided at the top of the blow molding tube 15, and a fixed horizontal plate 19 is provided at the top of the blow molding air inlet pipe 18.

[0035] In this embodiment, the stretched bottle blank is placed in the blow molding chamber 8, and the gas enters through the blow molding air inlet pipe 18, and then the bottle blank is blown to become larger through the blow molding tube 15 and the blow molding air outlet pipe 16. The fixed horizontal plate 19 is used to fix the top of the blow molding air inlet pipe 18.

[0036] Combine Figure 1 、 Figure 3 As shown, two fixing clamps 17 for fixing the blow molding tube 15 are provided between the blow molding machine fixing base 2 and the blow molding template 7 .

[0037] In this embodiment, two fixing clamps 17 are used to fix the blow molding tube 15 .

[0038] Combine Figure 1 、 Figure 4 As shown, the bottle mouth thread forming structure 9 includes two thread forming outer cylinders 20 arranged in the mouth mold fixing seat 3, and the thread forming outer cylinder 20 has a thread forming texture 21. A fixed bracket 22 is provided above the mouth mold fixing seat 3, and the fixed bracket 22 is provided with a pushing cylinder 23 and a pushing rod 24 extending into the thread forming outer cylinder 20.

[0039] In this embodiment, the mouth of the bottle is placed in the thread forming outer cylinder 20, and the thread forming texture 21 is used to form the outer thread of the bottle mouth. After forming, the bottle is pushed downward by the pushing cylinder 23 and the pushing rod 24 and falls onto the conveyor belt.

[0040] The working principle of this utility model is:

[0041] The bottle body is placed in the mold fixing seat 3 and the bottle body is formed by the bottle mouth thread forming structure 9. The bottle body is placed in the mold fixing seat 3 and the bottle mouth thread forming structure 9 is used to fix the top of ... body is placed in the mold fixing seat 3. The bottle body is placed in the mold fixing seat 3 and the bottle mouth thread forming structure 9 is used to fix the top of the bottle mouth thread forming structure 9. The bottle body is placed in the mold fixing seat 3 and

[0042] The injection tube fixing template 12 is used to clamp and fix the injection tube 5 to prevent the injection tube 5 from shaking during the injection molding process. The two fixing clamps 17 are used to fix the blow molding tube 15.

[0043] The mouth of the bottle is placed in the thread forming outer cylinder 20, and the thread forming texture 21 is used to form the outer thread of the bottle mouth. After forming, the bottle is pushed downward by the pushing cylinder 23 and the pushing rod 24 and falls onto the conveyor belt.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the spirit of the present invention.

[0045] Although the terms such as injection molding machine fixing base 1, blow molding machine fixing base 2, die fixing base 3, injection molding machine connecting member 4, injection molding tube 5, preform molding part 6, blow molding template 7, blow molding chamber 8, blow molding part 88, bottle mouth thread molding structure 9, injection molding machine connecting platform 10, injection molding machine connecting pipe 11, injection molding tube fixing template 12, material output platform 13, output pipe mouth 14, blow molding pipe 15, blow molding outlet pipe 16, fixed splint 17, blow molding inlet pipe 18, fixed cross plate 19, thread molding outer cylinder 20, thread molding texture 21, fixed bracket 22, ejector cylinder 23, and ejector rod 24 are used more frequently in this document, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention. Interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A three-station integrated machine injection stretch blow molding hot runner mold assembly, comprising an injection molding machine fixing seat (1), a blow molding machine fixing seat (2) and a die fixing seat (3), characterized in that: An injection molding machine connecting piece (4) is provided above the injection molding machine fixing seat (1), an injection molding tube (5) connected to the injection molding machine connecting piece (4) is provided below the injection molding machine fixing seat (1), a bottle blank molding piece (6) is provided at the bottom of the injection molding tube (5), two blow molding templates (7) are provided below the blow molding machine fixing seat (2), a blow molding chamber (8) is formed between the two blow molding templates (7), a blow molding piece (88) extending into the blow molding chamber (8) is provided between the blow molding machine fixing seat (2) and the blow molding template (7), and a bottle mouth thread molding structure (9) is provided in the mouth mold fixing seat (3).

2. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 1, characterized in that: The injection molding machine connecting member (4) comprises an injection molding machine connecting platform (10) arranged above the injection molding machine fixing seat (1); an injection molding machine connecting pipe (11) is provided on the back of the injection molding machine connecting platform (10); and the top of the injection molding tube (5) extends into the injection molding machine connecting platform (10).

3. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 2, characterized in that: An injection molding tube fixing template (12) is provided below the injection molding machine fixing seat (1), and the injection molding tube (5) passes through the injection molding tube fixing template (12).

4. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 3, characterized in that: The preform molded part (6) comprises a material output platform (13) arranged at the bottom of the injection tube (5), and a plurality of output pipe openings (14) are provided at the bottom of the material output platform (13).

5. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 4, characterized in that: The blow molding part (88) includes a blow molding tube (15) arranged between a blow molding machine fixing seat (2) and a blow molding template (7), and a blow molding air outlet pipe (16) extending into the blow molding chamber (8) is provided at the bottom of the blow molding tube (15).

6. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 5, characterized in that: The diameter of the blow molding air outlet pipe (16) is smaller than the diameter of the blow molding pipe (15).

7. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 6, characterized in that: Two fixing clamping plates (17) for fixing the blow molding tube (15) are provided between the blow molding machine fixing seat (2) and the blow molding template (7).

8. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 7, characterized in that: A blow molding air inlet pipe (18) penetrating through the blow molding machine fixing seat (2) is provided on the top of the blow molding pipe (15), and a fixed transverse plate (19) is provided on the top of the blow molding air inlet pipe (18).

9. The three-station all-in-one injection stretch blow molding hot runner mold assembly according to claim 8, characterized in that: The bottle mouth thread forming structure (9) comprises two thread forming outer cylinders (20) arranged in a mouth die fixing seat (3), and the thread forming outer cylinders (20) have thread forming textures (21) therein.

10. The three-station integrated injection stretch blow molding hot runner mold assembly according to claim 9, characterized in that: A fixed bracket (22) is provided above the die fixing seat (3), and a pusher cylinder (23) and a pusher rod (24) extending into the threaded forming outer cylinder (20) are provided in the fixed bracket (22).

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