Thermal forming stretching bottle blowing machine

Abstract

The utility model relates to the technical field of bottle blowing machines, and discloses a thermoforming stretching bottle blowing machine, which solves the problems in the background technology, and comprises a conveyor belt, a connecting piece is arranged on the conveyor belt, a bottle blank is arranged on the connecting piece, the conveyor belt is provided with a feeding end and a discharging end, and the feeding end and the discharging end are arranged on the conveyor belt. A heating bin is arranged at the position, away from the feeding end, of the conveying belt in a penetrating mode, a heater is arranged in the heating bin, heightening blocks are arranged on the two sides of the conveying belt correspondingly, air cylinders are arranged on the two heightening blocks correspondingly, molds are arranged at the telescopic ends of the air cylinders correspondingly, an air blowing needle is arranged on the upper portion of the mold on one side, and an air pipe is arranged on the air blowing needle. The air pipe is connected with a high-pressure air cylinder, a cooling bin is arranged on the side, close to the discharging end, of the conveying belt in a penetrating mode, and a draught fan is arranged in the cooling bin. The cooling device has the advantages that the overall production efficiency can be improved, the problem that molds are occupied for a long time is solved, the cooling process is more efficient, and the flexibility of a production line is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of blow molding machines, and specifically relates to a thermoforming stretch blow molding machine. Background Technique

[0002] In the field of plastic bottle manufacturing, thermoforming stretch blow molding machines are widely used in industries such as beverages, food, and cosmetics. As the core equipment for realizing large-scale plastic bottle production, the equipment heats plastic preforms (bottle preforms) to an appropriate temperature and then performs stretching and blow molding to finally produce plastic bottles of various specifications.

[0003] Traditional blow molding machines usually complete the cooling of bottles in the mold. Cooling water circulates through the cooling channels in the mold to gradually reduce the temperature of the bottles. Although this method can complete the cooling of the bottles to a certain extent, it will cause the mold to be occupied for a long time, thereby reducing production efficiency. For this reason, we propose a thermoforming stretch blow molding machine. Content of the Utility Model

[0004] In order to solve the problem that traditional blow molding machines usually complete the cooling of bottles in the mold, cooling water circulates through the cooling channels in the mold to gradually reduce the temperature of the bottles. Although this method can complete the cooling of the bottles to a certain extent, it will cause the mold to be occupied for a long time, thereby reducing production efficiency. The utility model provides the following technical solutions: a thermoforming stretch blow molding machine, including a conveyor belt, a connecting piece is arranged on the conveyor belt, a bottle preform is arranged on the connecting piece, the conveyor belt has a feeding end and a discharging end, a heating chamber is arranged through the conveyor belt away from the feeding end, a heater is arranged in the heating chamber, heightening blocks are arranged on both sides of the conveyor belt, cylinders are arranged on both of the heightening blocks, molds are arranged at the telescopic ends of the cylinders, a blowing needle is arranged on the upper part of one side of the mold, an air pipe is arranged on the blowing needle, the air pipe is connected to a high-pressure gas cylinder, a cooling chamber is arranged through one side of the conveyor belt close to the discharging end, and a fan is arranged in the cooling chamber.

[0005] Preferably, there are multiple heaters, and the multiple heaters are respectively arranged on the peripheral side walls and the upper wall of the heating chamber to ensure that the bottle preforms can be evenly heated during the heating process, improving the heating efficiency and the quality of the finished product.

[0006] Preferably, the heater is an infrared heater, and the infrared heater has the characteristics of fast and uniform heating, and can more effectively control the heating process of the bottle preform.

[0007] Preferably, there are multiple fans, and the multiple fans are respectively arranged on the upper wall of the cooling chamber and on both sides in the same direction as the conveying direction of the conveyor belt, which can realize multi-angle cooling of the bottles and ensure the cooling uniformity.

[0008] Preferably, an air suction port is provided in the cooling bin, and the air suction port is connected to a heat exchanger through a conveying pipeline, effectively discharging the hot air generated during the cooling process, and further optimizing the cooling efficiency and energy utilization rate.

[0009] Preferably, the mold is detachably installed, allowing the production line to quickly switch different bottle molds, improving the flexibility and efficiency of the production line.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] During operation, the preforms are fed into the production line through the feeding end of the conveyor belt. The preforms move with the conveyor belt and enter the heating bin. Multiple heaters start to work, quickly and evenly heating the preforms to a temperature suitable for stretching and blow molding. After the preforms are heated, the conveyor belt moves them to the molding area. The cylinder drives the mold to close, and the blowing needle injects high-pressure air from the high-pressure gas cylinder into the interior of the preforms through the air pipe. The high-pressure air causes the preforms to rapidly expand and fill the interior space of the mold, thus forming the shape of the bottle. After the bottle is formed, the cylinder drives the mold to open. The formed bottle moves with the conveyor belt into the cooling bin, and the blower generates a forced air flow to cool the bottle. Multiple blowers blow cold air from different directions to ensure that all parts of the bottle can be evenly cooled, avoiding local overcooling or overheating. The air suction port sucks away the hot air generated during the cooling process, preventing the temperature in the cooling bin from being too high. At this time, the bottle has been completely shaped, and the cooled bottle continues to move along the conveyor belt to the discharging end and enters the next process, improving the overall production efficiency, avoiding the problem of long-term occupation of the mold, making the cooling process more efficient, and enhancing the flexibility of the production line. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is a front view structural schematic diagram of the present utility model;

[0014] Figure 2 is a top view structural schematic diagram of the present utility model;

[0015] In the figure: 1, conveyor belt; 2, connecting piece; 3, preform; 4, heating bin; 5, heater; 6, heightening block; 7, cylinder; 8, mold; 9, blowing needle; 10, air pipe; 11, high-pressure gas cylinder; 12, cooling bin; 13, blower; 14, conveying pipeline; 15, heat exchanger. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0017] It is given by Figure 1-2 The present invention includes a conveyor belt 1, a connecting member 2 is provided on the conveyor belt 1, a preform 3 is provided on the connecting member 2, the conveyor belt 1 has a feeding end and a discharging end, a heating chamber 4 is penetrated through the conveyor belt 1 away from the feeding end, a heater 5 is provided in the heating chamber 4, heightening blocks 6 are provided on both sides of the conveyor belt 1, cylinders 7 are provided on both of the two heightening blocks 6, a mold 8 is provided at the telescopic end of each cylinder 7, a blowing needle 9 is provided on the upper part of one side of the mold 8, a trachea 10 is provided on the blowing needle 9, the trachea 10 is connected to a high-pressure gas cylinder 11, a cooling chamber 12 is penetrated through one side of the conveyor belt 1 near the discharging end, and a blower 13 is provided in the cooling chamber 12.

[0018] There are multiple heaters 5, and the multiple heaters 5 are respectively provided on the peripheral side walls and the upper wall of the heating chamber 4 to ensure that the preform 3 can be evenly heated during the heating process, improving the heating efficiency and the finished product quality.

[0019] The heater 5 is an infrared heater, and the infrared heater has the characteristics of fast and uniform heating, and can more effectively control the heating process of the preform 3.

[0020] There are multiple blowers 13, and the multiple blowers 13 are respectively provided on the upper wall of the cooling chamber 12 and on both sides in the same direction as the conveying direction of the conveyor belt 1, which can realize multi-angle cooling of the bottle and ensure the cooling uniformity.

[0021] An air suction port is provided in the cooling chamber 12, and the air suction port is connected to a heat exchanger 15 through a conveying pipeline 14 to effectively discharge the hot air generated during the cooling process, further optimizing the cooling efficiency and the energy utilization rate.

[0022] The mold 8 is detachably installed, allowing the production line to quickly switch different bottle-shaped molds 8, improving the flexibility and efficiency of the production line.

[0023] Working principle: During operation, the preform 3 is fed into the production line through the feeding end of the conveyor belt 1. The preform 3 moves along with the conveyor belt 1 and enters the heating chamber 4. Multiple heaters 5 start to work, heating the preform 3 quickly and evenly to a temperature suitable for stretching and blow molding. After the preform 3 is heated, the conveyor belt 1 moves it to the forming area. The cylinder 7 drives the mold 8 to close. The blowing needle 9 injects high-pressure air from the high-pressure gas cylinder 11 into the interior of the preform 3 through the air pipe 10. The high-pressure air causes the preform 3 to expand rapidly, filling the internal space of the mold 8, thus forming the shape of the bottle. After the bottle is formed, the cylinder 7 drives the mold 8 to open. The formed bottle moves along with the conveyor belt 1 into the cooling chamber 12. Forced air flow is generated by the fan 13 to cool the bottle. Multiple fans 13 blow cold air from different directions to ensure that all parts of the bottle can be cooled evenly, avoiding local overcooling or overheating. The suction port sucks away the hot air generated during the cooling process to prevent the temperature in the cooling chamber 12 from being too high. At this time, the bottle has been completely shaped. The cooled bottle continues to move along the conveyor belt 1 to the discharging end and enters the next process, improving the overall production efficiency, avoiding the problem of long-term occupation of the mold 8, making the cooling process more efficient, and enhancing the flexibility of the production line.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermoforming stretch blow molding machine, comprising a conveyor belt (1), characterized in that: A connecting member (2) is provided on the conveyor belt (1), and a preform (3) is provided on the connecting member (2). The conveyor belt (1) has a feeding end and a discharging end. A heating chamber (4) is penetrated through the conveyor belt (1) away from the feeding end. A heater (5) is provided in the heating chamber (4). Raised blocks (6) are provided on both sides of the conveyor belt (1). Cylinders (7) are provided on both of the raised blocks (6). Molds (8) are provided at the telescopic ends of the cylinders (7). A blowing needle (9) is provided at the upper part of one of the molds (8). An air pipe (10) is provided on the blowing needle (9). The air pipe (10) is connected to a high-pressure gas cylinder (11). A cooling chamber (12) is penetrated through one side of the conveyor belt (1) near the discharging end. A blower (13) is provided in the cooling chamber (12).

2. The thermoforming stretch blow molding machine according to claim 1, wherein: There are multiple heaters (5), and the multiple heaters (5) are respectively provided on the peripheral side walls and the upper wall of the heating chamber (4).

3. The thermoforming stretch blow molding machine according to claim 2, characterized in that: The heater (5) is an infrared heater.

4. A thermoforming stretch blow molding machine according to claim 3, wherein: There are multiple blowers (13), and the multiple blowers (13) are respectively provided on the upper wall of the cooling chamber (12) and on both sides in the same direction as the conveying direction of the conveyor belt (1).

5. The thermoforming stretch blow molding machine according to claim 4, characterized in that: An air suction port is provided in the cooling chamber (12), and the air suction port is connected to a heat exchanger (15) through a conveying pipeline (14).

6. The thermoforming stretch blow molding machine according to claim 5, wherein: The mold (8) is detachably installed.

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