Novel bottle blowing machine

By using interchangeable molds and multiple heating chambers, the problem of low production efficiency for multiple product types in traditional blow molding machines has been solved, enabling the same blow molding machine to produce different bottles and achieve high-efficiency production.

CN223763754UActive Publication Date: 2026-01-06NINGXIA HUIWEI PACKAGING TECH CO LTD
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Patent Information

Application Number
CN202520043655.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-01-06
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Traditional blow molding machines can only produce one type of bottle, resulting in a large footprint, low production efficiency, and an inability to meet the needs of multi-variety production.

Method used

Employing replaceable mold technology, the machine achieves multiple uses by replacing the front and rear mold blocks. It combines multiple heating boxes to uniformly heat the preforms and utilizes the blow molding mechanism and gas supply mechanism to achieve precise control and blowing of the preforms.

Benefits of technology

It enables the production of different bottles using the same blow molding machine, reduces floor space, improves production efficiency, and ensures uniform heating of preforms and blow molding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel bottle blowing machine which comprises a bottle preform conveying mechanism, a preform conveying end, a bottle discharging end, a heating box, a heating pipe, a bottle preform placing frame, a fixing frame, a large air cylinder, a mold block mounting frame, a mold block, an air supply mechanism, an air supply pipe, a small air cylinder, a telescopic pipe, a telescopic rod, a bottle preform connector and the like. According to the utility model, the mold replaceable technology is used, when different bottles are produced, only the corresponding mold blocks on the front mold block mounting rack and the rear mold block mounting rack need to be replaced by the mold blocks with the same specification and the same shape, so that one machine has multiple functions, the occupied area is reduced, and meanwhile, the production efficiency is improved.
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Description

Technical Field

[0001] This application relates to the field of plastic bottle processing technology, and in particular to a novel blow molding machine. Background Technology

[0002] With the rapid development of the packaging industry, the requirements for blow molding machines are increasing, including improving production efficiency and reducing floor space. Traditional blow molding machines can only produce one type of bottle; therefore, producing different types of bottles requires multiple machines, resulting in a large floor space and low production efficiency. To address these issues, a new type of blow molding machine is proposed. Utility Model Content

[0003] This application provides a novel blow molding machine that uses replaceable mold technology. When producing different bottles, it is only necessary to replace the corresponding mold blocks on the front and rear mold block mounting frames with mold blocks of the same specifications and shape, thus realizing multiple uses of one machine, reducing the floor space occupied, and improving production efficiency.

[0004] This application provides a novel blow molding machine, comprising: a preform transport mechanism and a blow molding mechanism. The preform transport mechanism includes a preform conveying end and a bottle outlet end. Several preform placement racks are provided on the preform transport mechanism, with five preform placement racks arranged in groups of several groups. Multiple heating boxes are installed above the preform transport mechanism. A mold box is provided on the preform transport mechanism. A front mold block mounting rack is provided on one inner wall of the mold box, and a front mold block is mounted on the front mold block mounting rack. A "U"-shaped hole is opened on the other side of the mold box. A fixed frame is installed above the structure, and a large air cylinder is fixed on the fixed frame. The output end of the large air cylinder is connected to a rear mold block mounting frame, and a rear mold block is installed on the rear mold block mounting frame. A blow molding mechanism is installed above the mold box. The blow molding mechanism includes an air supply mechanism. The output end of the air supply mechanism is connected to an air supply pipe. Five small air cylinders are installed on the air supply pipe. Each of the five small air cylinders has two telescopic rods connected to its output end. The ends of the two telescopic rods are connected to a preform connector. The input end of the preform connector is connected to a telescopic tube, which passes through the small air cylinders and communicates with the air supply pipe.

[0005] Furthermore, multiple heating tubes are installed on both sides of the interior of the heating chamber.

[0006] Furthermore, the output end of the atmospheric cylinder is directly opposite the "U"-shaped hole.

[0007] Furthermore, both the front and rear mold blocks can be replaced.

[0008] Furthermore, the front mold block and the rear mold block are on the same horizontal plane.

[0009] Furthermore, the preform connector has a built-in sealing structure.

[0010] As can be seen from the above technical solution, this application provides a novel blow molding machine, including: a preform transport mechanism and a blow molding mechanism. The preform transport mechanism is a device that transports preforms from the preform sorting machine through the heating box and the blow molding mechanism to the bottle outlet. Its transport kinetic energy is provided by a conveying motor (servo motor) to accurately control the movement time of the preforms, so as to achieve sufficient heating and effective blow molding of the preforms. The preform transport mechanism includes a preform conveying end and a bottle outlet end. The preform conveying end receives the preforms transported in an orderly manner by the preform sorting machine. The bottle outlet end discharges the produced bottles after blow molding. The preform transport mechanism is equipped with several preform placement racks for placing the preforms, so as to group the preforms and achieve corresponding relationships, providing strong support for precise blow molding. There are 5 preform placement racks. The system is divided into multiple groups, each corresponding to the number of preform connectors and mold shapes in the blow molding mechanism. This provides strong support for efficient bottle production. Multiple heating boxes are installed above the preform transport mechanism for heating the passing preforms sequentially, ensuring uniform and stable heating to soften them. This facilitates efficient blowing of qualified bottles by the blow molding mechanism, providing strong support for the blow molding operation. The preform transport mechanism includes a mold box containing the front mold blocks. A front mold block mounting bracket is located on one inner wall of the mold box, mounting the front mold blocks. These brackets work in conjunction with the rear mold blocks to form the blow molding mold. Under the action of the blow molding mechanism, the preforms are then blown into bottles. The system blows out bottles of the desired shape. A "U-shaped" opening is located on the other side of the mold box. The rear mold block, under the action of the large air cylinder, forms a channel for engaging with the front mold block. A fixing frame is installed above the preform transport mechanism to secure the large air cylinder. The large air cylinder, a kinetic energy output structure, outputs kinetic energy when each set of preforms passes and stops at the front mold block, pushing the rear mold block to engage with the front mold block. This allows the lower half of the preform to be placed within the mold cavity formed by the front and rear mold blocks, facilitating the blowing mechanism to shape the preform into the desired bottle shape. After blowing, kinetic energy is output again to pull the rear mold block back, allowing the preform transport mechanism to deliver the blown bottle for the next set of preforms. The output end of the large air cylinder is connected to the rear mold. The rear mold block mounting frame is used in conjunction with the front mold block to form a blow molding mold. Under the action of the blow molding mechanism, it blows out bottles of the desired shape. A blow molding mechanism is located above the mold box; this mechanism performs blow molding on the preform during the bottle-making process. The blow molding mechanism includes an air supply mechanism to provide air for the blow molding operation. During the blow molding process, appropriate air is blown into the preform to shape it into the mold cavity. The output end of the air supply mechanism is connected to an air supply pipe, which delivers air from the air supply mechanism to the main pipe of the telescopic pipe. Five small cylinders are installed on the air supply pipe, forming a kinetic energy output structure that controls the extension and retraction of two telescopic rods. Kinetic energy is output when the preform connector connects to the preform.The telescopic rod extends to seal the preform connector to the preform neck. After blowing, kinetic energy is output to retract the telescopic rod, separating the preform connector from the blown bottle. Each of the five small cylinders has two telescopic rods connected to its output end. These cylinders raise and lower the preform connector. The ends of the two telescopic rods are connected to the preform connector, the sealing connection between the blowing mechanism and the preform. The input end of the preform connector is connected to a telescopic tube, which passes through the small cylinders and connects to the air supply pipe, delivering air from the supply pipe to the pipe inside the preform. This tube can extend and retract in a sealed manner, synchronously with the telescopic rods.

[0011] In summary, the beneficial effects of this application are as follows:

[0012] 1. The machine uses replaceable mold technology. When producing different bottles, you only need to replace the corresponding mold block on the front and rear mold block mounting rack with a mold block of the same specification and shape. This achieves multiple uses for one machine, reduces the floor space, and improves production efficiency.

[0013] 2. Multiple heating chambers are used to heat the preforms before blowing, ensuring stable and uniform heating of the preforms, providing strong support for the blowing operation, ensuring the normal operation of the blowing process, and improving production efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this application.

[0016] Figure 2 This is a schematic diagram of the heating box used in this application.

[0017] Figure 3 This is a schematic diagram of the mold block for this application.

[0018] Figure 4 This is a schematic diagram of the mold block mounting bracket for this application.

[0019] Figure 5 This is a schematic diagram of the blow molding mechanism of this application.

[0020] Illustration:

[0021] Among them, 1-preform transport mechanism, 2-preform conveying end, 3-bottle outlet end, 4-heating box, 41-heating tube, 5-preform placement rack, 6-fixed frame, 7-large cylinder, 8-mold block mounting rack, 9-mold block, 10-air supply mechanism, 11-air supply pipe, 12-small cylinder, 13-telescopic pipe, 14-telescopic rod, 15-preform connector. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] From the above technical solutions, it can be seen that:

[0024] Example 1:

[0025] See Figures 1-5 .

[0026] A novel blow molding machine includes: a preform transport mechanism 1 and a blow molding mechanism. The preform transport mechanism 1 is a device that transports preforms from a preform sorting machine through a heating box 4 and the blow molding mechanism to a bottle outlet 3. Its transport kinetic energy is provided by a conveyor motor (servo motor) to precisely control the preform movement time, thereby achieving sufficient heating and effective blow molding. The preform transport mechanism 1 includes a preform feeding end 2 and a bottle outlet end 3. The preform feeding end 2 receives preforms transported in an orderly manner by the preform sorting machine. The bottle outlet end 3 discharges the produced bottles after blow molding. The preform transport mechanism 1 is equipped with several preform placement racks 5 for placing preforms, facilitating grouping and establishing a corresponding relationship between preforms, providing strong support for precise blow molding. Five units are grouped together, forming multiple groups. These groups correspond to the number of preform connectors 15 and the mold shapes of the mold blocks 9 in the blow molding mechanism, providing strong support for efficient bottle production. Multiple heating boxes 4 are installed above the preform transport mechanism 1 for heating. The preforms are sequentially heated to ensure uniform and stable temperature rise, softening them for efficient blowing out of qualified bottles under the action of the blow molding mechanism. This provides strong support for the blow molding operation. A mold box is installed on the preform transport mechanism 1, housing the front mold blocks 9. The inner wall of one side of the mold box... The system includes a front mold block mounting bracket 8 and a front mold block 9 mounting bracket. The front mold block 9 is mounted on the front mold block mounting bracket 8 and works in conjunction with the rear mold block 9. Together, they form a mold for bottle blowing. Under the action of the bottle blowing mechanism, the mold blows out bottles of the desired shape. A "U-shaped" hole is opened on the other side of the mold box. The rear mold block 9, under the action of the large air cylinder 7, forms a channel for combining with the front mold block 9. A fixing bracket 6 is installed above the preform transport mechanism 1 for fixing and mounting the large air cylinder 7. The large air cylinder 7 is fixed on the fixing bracket 6. This is part of the kinetic energy output structure. When each set of preforms passes the front mold block 9, kinetic energy is output to push the rear mold block 9 to engage with the front mold block 9, placing the lower half of the preform into the mold cavity formed by the front and rear mold blocks 9. This allows the preform to be blown into the desired bottle shape by the blow molding mechanism. After blowing, kinetic energy is output again to pull the rear mold block 9 back, allowing the preform transport mechanism 1 to deliver the blown bottles for the next set of preforms to be blown. The output end of the large air cylinder 7 is connected to the rear mold block mounting bracket 8, which is the mounting body of the rear mold block 9. The rear mold block mounting bracket 8 is equipped with... The rear mold block 9 works in conjunction with the front mold block 9. Together, they form a mold for bottle blowing. Under the action of the bottle blowing mechanism, bottles of the desired shape are blown out. A bottle blowing mechanism is located above the mold box. This mechanism performs the bottle blowing process on the preform during its transformation into a bottle. The bottle blowing mechanism includes an air supply mechanism 10, which provides air for the bottle blowing operation. During the blowing process, appropriate air is blown into the preform to shape it into the mold cavity. The output end of the air supply mechanism 10 is connected to an air supply pipe 11, which delivers the air from the air supply mechanism 10 to the main pipe of the telescopic pipe 13.Five small cylinders 12 are installed on the air supply pipe 11, which are kinetic energy output structures that control the extension and retraction of two telescopic rods 14. When the preform connector 15 connects to the preform, kinetic energy is output, and the telescopic rods 14 extend to seal the preform connector 15 with the preform's neck. After blowing, kinetic energy is output to retract the telescopic rods 14, separating the preform connector 15 from the blown bottle. Each of the five small cylinders 12 has two telescopic rods 14 connected to its output end. Under the action of the small cylinders 15, the preform connector 15 is raised and lowered. The ends of the two telescopic rods 14 are connected to the preform connector 15, the connector head that seals the blown bottle mechanism with the preform. The input end of the preform connector 15 is connected to a telescopic tube 13, which passes through the small cylinders 12 and connects to the air supply pipe 11, delivering air from the air supply pipe 11 to the pipe inside the preform. The telescopic tube 13 can seal and retract synchronously with the telescopic rods 14.

[0027] As a preferred embodiment, multiple heating tubes are provided on both sides of the heating chamber 4, which is beneficial for the preform to be heated evenly.

[0028] In a preferred embodiment, the output end of the atmospheric cylinder 7 is directly opposite the "U"-shaped hole, which provides strong support for the combination of the front mold block 9 and the rear mold block 9, and facilitates the combination of the front mold block 9 and the rear mold block 9 to form a complete mold.

[0029] As a preferred embodiment, both the front mold block 9 and the rear mold block 9 are replaceable. When producing different bottles, simply replace the corresponding mold block 9 on the front and rear mold block mounting brackets 8 with mold blocks of the same specifications and shape. This achieves multi-purpose functionality, reduces floor space, and improves production efficiency.

[0030] In a preferred embodiment, the front mold block 9 and the rear mold block 9 are on the same horizontal plane, providing strong support for the combination of the front mold block 9 and the rear mold block 9.

[0031] As a preferred embodiment, the preform connector 15 has a built-in sealing structure. After connecting to the preform, it achieves a sealed connection with the preform, which can prevent air leakage and achieve efficient blow molding, thereby ensuring blow molding efficiency.

[0032] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0033] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A novel bottle blowing machine comprising: The bottle embryo conveying mechanism (1) and the bottle blowing mechanism are characterized in that the bottle embryo conveying mechanism (1) comprises a conveying end (2) and a bottle outlet end (3), a plurality of bottle embryo placing racks (5) are arranged on the bottle embryo conveying mechanism (1), the plurality of bottle embryo placing racks (5) are grouped into groups, a plurality of heating boxes (4) are installed above the bottle embryo conveying mechanism (1), a mold box is arranged on the bottle embryo conveying mechanism (1), a front mold block mounting rack (8) is arranged on one side inner wall of the mold box, a front mold block (9) is installed on the front mold block mounting rack (8), a "mouth-shaped" hole is opened on the other side of the mold box, a fixing frame (6) is arranged above the bottle embryo conveying mechanism (1), an air cylinder (7) is fixed on the fixing frame (6), a rear mold block mounting rack (8) is connected to the output end of the air cylinder (7), a rear mold block (9) is installed on the rear mold block mounting rack (8), a bottle blowing mechanism is arranged above the mold box, the bottle blowing mechanism comprises a gas supply mechanism (10), the gas supply mechanism (10) is connected with a gas supply pipe (11), five small air cylinders (12) are installed on the gas supply pipe (11), two telescopic rods (14) are connected to the output end of each of the five small air cylinders (12), bottle embryo connectors (15) are connected to the ends of the two telescopic rods (14), a telescopic pipe (13) is connected to the input end of the bottle embryo connector (15), and the telescopic pipe (13) communicates with the gas supply pipe (11) through the small air cylinder (12).

2. A novel bottle blowing machine as claimed in claim 1, wherein, A plurality of heating pipes (41) are arranged on both sides of the heating box (4).

3. A novel bottle blowing machine as claimed in claim 1, wherein, The output end of the air cylinder (7) is opposite to the "mouth-shaped" hole.

4. A novel bottle blowing machine as claimed in claim 1, wherein, The front mold block (9) and the rear mold block (9) can be replaced.

5. A novel bottle blowing machine as claimed in claim 1, wherein, The front mold block (9) and the rear mold block (9) are on the same horizontal plane.

6. A novel bottle blowing machine as claimed in claim 1, wherein, The bottle embryo connector (15) is provided with a sealing structure.