High efficiency cooling device for a hollow forming injection blow machine

By employing a high-efficiency cooling system with copper heat pipes and atomizing spray devices in the hollow molding injection blow molding machine, the problems of high workpiece temperature and low production efficiency have been solved, achieving the effects of rapid workpiece cooling and reduced production costs.

CN224323553UActive Publication Date: 2026-06-05ZHANGJIAGANG TIEYIN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG TIEYIN MASCH CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing hollow injection blow molding machines have low production efficiency, high workpiece temperature, and are not easy to cool down quickly, resulting in deformation and increased production costs, and making the maintenance of cooling devices difficult.

Method used

A high-efficiency cooling system combining copper heat pipes and atomizing spray devices is adopted. The copper heat pipes provide active cooling, while the air supply ducts and atomizing spray devices provide dual cooling, enabling rapid cooling of the workpiece.

Benefits of technology

This technology enables rapid cooling and forming of workpieces, reducing production cycles and costs, as well as workpiece deformation and equipment maintenance time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224323553U_ABST
Patent Text Reader

Abstract

The utility model provides a hollow blow -molding injection machine's high efficiency cooling device relates to blow -molding injection machine cooling technical field, include: processing mould and discharge gate, the processing mould outside is provided with cooling mechanism, the cooling mechanism includes main part fixed piece, the both sides upper and lower ends of main part fixed piece all are provided with hasp, the hasp top is provided with latch buckle, the inside of main part fixed piece is provided with four copper heat pipe and is equidistant array, the upper and lower ends of main part fixed piece are provided with eight air supply pipeline mirror image symmetry array respectively, the utility model discloses cooling through copper heat pipe to processing mould, and then makes the workpiece cooling of processing, makes workpiece and can be faster cooling forming, and cooling gas passes through air supply pipeline and enters the air outlet box, and makes cooling gas maximum degree flow to workpiece through air deflector, makes cooling water atomization and sprays to workpiece through atomization and sprays device, realizes double cooling, to reduce workpiece temperature.
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Description

Technical Field

[0001] This utility model relates to the field of injection blow molding machine cooling technology, and in particular to a high-efficiency cooling device for a hollow molding injection blow molding machine. Background Technology

[0002] Hollow injection blow molding machines are specialized equipment for producing hollow plastic containers. They are particularly adept at manufacturing small-capacity, high-precision, high-transparency, and high-cleanliness containers, such as medicine bottles, cosmetic bottles, reagent bottles, and eye drop bottles. They have irreplaceable advantages in fields such as pharmaceutical packaging and high-end cosmetic packaging.

[0003] However, existing technologies cannot quickly cool down the produced workpieces, resulting in long production cycles and lower production efficiency compared to other molding processes. The produced workpieces still have a high temperature, which may cause them to be damaged during transportation, leading to deformation and increasing the scrap rate. This significantly increases production costs. Furthermore, when the internal cooling device is damaged, it cannot be quickly disassembled for repair, further increasing production time costs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-efficiency cooling device for a hollow injection blow molding machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency cooling device for a hollow injection blow molding machine, comprising: a processing mold and a discharge port, a cooling mechanism provided on the outside of the processing mold, the cooling mechanism comprising a main body fixing member, fasteners provided at both the upper and lower ends of both sides of the main body fixing member, a pin-type buckle provided at the top of the fasteners, four copper heat pipes arranged in an equidistant array on the inner side of the main body fixing member, eight air supply pipes arranged in a mirror symmetrical array at the upper and lower ends of the main body fixing member, a rectangular fixing member provided at the front end of the air supply pipes, an air outlet box provided at the front end of the rectangular fixing member, an air filter plate provided on the inner side of the air outlet box, a plurality of air guide plates arranged in an equidistant array at the front end of the air filter plate, and a plurality of air guide plates arranged in an equidistant array at the front end of the air guide plates.

[0006] In a preferred embodiment, the front end of the processing mold is provided with a rectangular symmetrical array of slots corresponding to the air outlet box. The front end of the processing mold and the rear end of the air outlet box are connected by bolt threads. The upper and lower ends of the processing mold are provided with slots corresponding to the water inlet pipes. The sides of the processing mold are provided with protruding slots corresponding to the buckles. The outer side of the processing mold is provided with a through slot corresponding to the air supply pipe.

[0007] In a preferred embodiment, an atomizing spraying device is provided at one front end of the air guide plate, a water inlet pipe is provided on the outside of the atomizing spraying device, and multiple atomizing nozzles are arranged in an equidistant array on the pipe of the atomizing spraying device.

[0008] In a preferred embodiment, the main body fastener has a rectangular protrusion at the corresponding buckle, the outer side of the rectangular protrusion is connected to the inner side of the buckle by a pin, the inner side of the main body fastener has a slot corresponding to the heat pipe, and the outer side of the main body fastener has a through groove corresponding to the air supply duct.

[0009] In a preferred embodiment, the front end of the air supply duct is fixedly connected to the inner side of the rectangular fixing member, and rubber sealing sleeves are provided at both ends of the air supply duct. The outer front end of the rectangular fixing member is connected to the rear end of the air outlet box by bolt threads.

[0010] In a preferred embodiment, the top of the atomizing spray device is fixedly connected to the bottom of the water inlet pipe, the upper and lower ends of the atomizing spray device are connected to the output end of the air outlet box by bolts, and the atomizing spray device is fixedly connected to the atomizing nozzle.

[0011] In a preferred embodiment, the side of the air outlet box near the processing mold is fixedly connected to the upper and lower sides of the first air guide plate, the side of the air outlet box near the output end is fixedly connected to the left and right sides of the second air guide plate, and the inner side of the air outlet box is fixedly connected to the outer side of the filter plate.

[0012] In a preferred embodiment, the top of the buckle is provided with a corresponding slot for the pin-type buckle, and the inner side of the pin-type buckle is fixedly connected to the outer side of the rectangular protrusion.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This invention uses copper heat pipes to cool the processing mold, thereby cooling the workpiece and allowing it to cool and solidify more quickly. Cooling gas enters the air outlet box through the air supply pipe and flows to the workpiece to the maximum extent through the air guide plate. Cooling water is atomized and sprayed onto the workpiece through the atomizing spray device, achieving dual cooling to reduce the workpiece temperature. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a high-efficiency cooling device for a hollow injection blow molding machine provided by this utility model.

[0016] Figure 2 A schematic diagram of the cooling mechanism of a high-efficiency cooling device for a hollow injection blow molding machine provided by this utility model.

[0017] Figure 3A schematic diagram of the processing mold structure for a high-efficiency cooling device of a hollow injection blow molding machine provided by this utility model.

[0018] Figure 4 This is a partially enlarged schematic diagram of the cooling mechanism of a high-efficiency cooling device for a hollow injection blow molding machine provided by this utility model.

[0019] Figure 5 This is a partial cross-sectional schematic diagram of the cooling mechanism of a high-efficiency cooling device for a hollow injection blow molding machine provided by this utility model.

[0020] Legend:

[0021] 1. Cooling mechanism; 11. Main body fastener; 12. Buckle; 13. Pin-type buckle; 14. Copper heat pipe; 15. Air supply duct; 16. Air outlet box; 17. Atomizing spray device; 18. Water inlet pipe; 19. Atomizing nozzle; 151. Rectangular fastener; 161. Air guide plate one; 162. Air guide plate two; 163. Air filter plate;

[0022] 2. Mold processing;

[0023] 3. Discharge port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figure 1-5As shown, this utility model provides a technical solution: a high-efficiency cooling device for a hollow injection blow molding machine, comprising: a processing mold 2 and a discharge port 3. A cooling mechanism 1 is provided on the outer side of the processing mold 2. The cooling mechanism 1 includes a main body fixing member 11. Buckles 12 are provided at both the upper and lower ends of both sides of the main body fixing member 11. A pin-type buckle 13 is provided at the top of the buckle 12. Four copper heat pipes 14 are arranged in an equidistant array on the inner side of the main body fixing member 11. Eight air supply pipes 15 are arranged in a mirror symmetrical array at the upper and lower ends of the main body fixing member 11. A rectangular fastener 151 is provided at the front end of the pipe 15. An air outlet box 16 is provided at the front end of the rectangular fastener 151. An air filter plate 163 is provided inside the air outlet box 16. Multiple air guide plates 162 arranged in an equidistant array are provided at the front end of the air filter plate 163. Multiple air guide plates 161 arranged in an equidistant array are provided at the front end of the air guide plates 162. An atomizing spray device 17 is provided at the front end of the air guide plate 161. A water inlet pipe 18 is provided outside the atomizing spray device 17. Multiple atomizing nozzles 19 arranged in an equidistant array are provided on the pipe of the atomizing spray device 17. The fastener 11 has a rectangular protrusion corresponding to the buckle 12. The outer side of the rectangular protrusion is connected to the inner side of the buckle 12 by a pin. The inner side of the main fastener 11 has a slot corresponding to the heat pipe, and the outer side of the main fastener 11 has a through groove corresponding to the air supply duct 15. The front end of the air supply duct 15 is fixedly connected to the inner side of the rectangular fastener 151. Both ends of the air supply duct 15 are equipped with rubber sealing sleeves. The outer front end of the rectangular fastener 151 is connected to the rear end of the air outlet box 16 by bolt threads. The top end of the atomizing spray device 17 is fixed to the bottom end of the water inlet pipe 18. The atomizing spray device 17 is fixedly connected to the output end of the air outlet box 16 by bolts at both ends. The atomizing spray device 17 is fixedly connected to the atomizing nozzle 19. The side of the air outlet box 16 near the processing mold 2 is fixedly connected to the upper and lower sides of the first air guide plate 161. The side of the air outlet box 16 near the output end is fixedly connected to the left and right sides of the second air guide plate 162. The inner side of the air outlet box 16 is fixedly connected to the outer side of the air filter plate 163. The top of the buckle 12 is provided with a corresponding slot for the pin-type buckle 13. The inner side of the pin-type buckle 13 is fixedly connected to the outer side of the rectangular protrusion.

[0027] In this embodiment, the main body fixing member 11 is fixed to the processing mold 2 by fastening the buckles 12 on both sides of the main body fixing member 11 with the corresponding slots on the processing mold 2. The buckles 12 are provided with corresponding slots for the pin-type buckles 13. After the buckles 12 are fixed, they can be fixed by the pin-type buckles 13 to prevent accidental contact, thereby improving the integration of the main body fixing member 11 and the processing mold 2. The protruding platform on the bottom of the main body fixing member 11 provides support for the processing mold 2. The main body fixing member 11 is fixed to the discharge port on the hollow molding injection blow molding machine. The through groove of the corresponding air supply pipe 15 provided on the outer side of the main body fixing member 11 makes the installation of the air supply pipe 15 more convenient. The four rods provided on the inner side of the main body fixing member 11... The copper heat pipe 14 cools the processing mold 2, thereby cooling the workpiece being processed. The core working principle of the copper heat pipe 14 is to achieve efficient heat transfer by absorbing heat during evaporation in the evaporation section and releasing heat during condensation in the condensation section. The boiling point is lowered and the steam flow resistance is reduced by the vacuum environment inside the pipe. The condensate is automatically pumped back to the evaporation section by the capillary force generated by the wick, forming a continuous and efficient passive heat transfer cycle. During the production process, the workpiece releases high temperature, which raises the temperature of the processing mold 2 and heats the middle section of the copper heat pipe 14. The heat is absorbed, and the pure water inside evaporates and flows to the condensation ends. After releasing heat at the condensation ends, it turns back into liquid and is returned to the middle heating section by the capillary force generated by the wick.

[0028] The rear end of the air supply duct 15 is connected to the air compressor. Rubber sealing sleeves are installed at both ends of the air supply duct 15 to improve the sealing of the connection. The airflow generated by the air compressor enters the air outlet box 16 through the air supply duct 15. The air outlet box 16 is equipped with an air filter plate 163. The incoming airflow flows out through the fine holes on the air filter plate 163, so that the gas can flow out evenly. The air guide plate 161 and the air guide plate 162 installed in the air outlet box 16 guide the outflowing cooling gas to the processed workpiece to the greatest extent, so as to reduce the temperature of the workpiece. An atomizing spray device 17 is installed on the outside of the air outlet box 16. A water inlet pipe 18 is installed on the outside of the atomizing spray device 17. The end of the water inlet pipe 18 is connected to the water supply pipe. Cooling water enters the atomizing spray device 17 through the main pipe and then flows into the branch pipe. The cooling water is atomized and sprayed onto the processed workpiece through the atomizing nozzle 19 installed on the outside of the branch pipe, so as to perform secondary cooling on the workpiece.

[0029] Example 2

[0030] like Figure 1-3As shown, the front end of the processing mold 2 is provided with a rectangular symmetrical array of slots corresponding to the air outlet box 16. The front end of the processing mold 2 is connected to the rear end of the air outlet box 16 by bolt threads. The upper and lower ends of the processing mold 2 are provided with slots corresponding to the water inlet pipe 18. The sides of the processing mold 2 are provided with protruding slots corresponding to the buckle 12. The outer side of the processing mold 2 is provided with a through groove corresponding to the air supply pipe 15.

[0031] In this embodiment, the slots corresponding to the air outlet box 16 at the front end of the processing mold 2 prevent the air outlet box 16 from affecting the two processing molds 2 when they are joined together, thus preventing gaps from forming when the processing molds 2 are joined together and causing defects in the processed product. The slots corresponding to the water inlet pipes 18 at the upper and lower ends of the processing mold 2 make the installation of the atomizing spraying device 17 more convenient. The through slots corresponding to the air supply pipes 15 on the outer side of the processing mold 2 make the installation of the air supply pipes 15 more convenient.

[0032] Working principle:

[0033] like Figure 1-5 As shown, the corresponding slots on the processing mold 2 are fixed by the buckle 12, and the protruding platform at the bottom of the main body fixing member 11 provides support for the processing mold 2, improving the integration of the main body fixing member 11 and the processing mold 2. The buckle 12 is fixed by the pin-type buckle 13, so that the buckle 12 will not loosen due to accidental contact after it is fixed to the processing mold 2. The four internal copper heat pipes 14 can cool the processing mold 2, thereby making the processed workpiece cool down and form more quickly. The core working principle of the copper heat pipes 14 is to utilize the heat absorption of the working liquid during evaporation in the evaporation section and the heat absorption during cooling. The condensation section releases heat to achieve efficient heat transfer. The vacuum environment inside the tube lowers the boiling point and reduces steam flow resistance. The capillary force generated by the wick automatically pumps the condensate back to the evaporation section, forming a continuous and efficient passive heat transfer cycle. During production, the workpiece releases high temperature, which raises the temperature of the processing mold 2 and heats the middle section of the copper heat pipe 14. The heat is absorbed, and the pure water inside evaporates and flows to the condensation ends. After releasing heat at the condensation ends, it turns back into liquid. The capillary force generated by the wick causes the liquid to return to the middle heating section. This cycle repeats to achieve the purpose of cooling.

[0034] The rear end of the air supply duct 15 is connected to the air compressor, and the front end is connected to the air outlet box 16. The rubber sealing sleeves at both ends of the air supply duct 15 can create better sealing at the connection points, reducing gas leakage. The airflow generated by the air compressor is sent into the air outlet box 16 through the air supply duct 15. The gas can flow out more evenly through the fine holes on the air filter plate 163, and the cooling gas can flow to the processed workpiece to the maximum extent through the first air guide plate 161 and the second air guide plate 162, so that the workpiece temperature is reduced. The water inlet pipe 18 on the atomizing spray device 17 is connected to the water supply pipe. Through the atomizing spray device 17, the cooling water can be atomized and sprayed onto the processed workpiece to perform secondary cooling of the workpiece, so that the workpiece temperature is reduced and it is not easy to deform.

[0035] By setting slots on the processing mold 2 corresponding to the air outlet box 16, the air outlet box 16 can fit the processing mold 2 more closely, so that there will be no large gaps when the processing mold 2 is closed, which will cause defects in the processed product. By setting slots on the processing mold 2 corresponding to the water inlet pipe 18, the installation of the atomizing spraying device 17 can be made more convenient. By setting through slots on the processing mold 2 corresponding to the air supply pipe 15, the installation of the air supply pipe 15 can be made more convenient.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A high-efficiency cooling device for a hollow injection blow molding machine, comprising: The processing mold (2) and the discharge port (3) are characterized in that a cooling mechanism (1) is provided on the outside of the processing mold (2), the cooling mechanism (1) includes a main body fixing member (11), and buckles (12) are provided on both the upper and lower ends of the main body fixing member (11). A pin-type buckle (13) is provided at the top of the buckle (12). Four copper heat pipes (14) are arranged in an equidistant array on the inner side of the main body fixing member (11). The upper and lower ends of the main body fixing member (11) are provided with a buckle (12). Eight air supply ducts (15) are arranged in a mirror symmetrical array. A rectangular fixing member (151) is provided at the front end of each air supply duct (15). An air outlet box (16) is provided at the front end of the rectangular fixing member (151). An air filter plate (163) is provided on the inner side of the air outlet box (16). Multiple air guide plates (162) are arranged in an equidistant array at the front end of the air filter plate (163). Multiple air guide plates (161) are arranged in an equidistant array at the front end of the air guide plates (162).

2. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 1, characterized in that: The front end of the processing mold (2) is provided with slots corresponding to the air outlet box (16) arranged in a rectangular symmetrical array. The front end of the processing mold (2) is connected to the rear end of the air outlet box (16) by bolt threads. The upper and lower ends of the processing mold (2) are provided with slots corresponding to the water inlet pipe (18). The sides of the processing mold (2) are provided with protruding slots corresponding to the buckle (12). The outer side of the processing mold (2) is provided with a through groove corresponding to the air supply pipe (15).

3. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 1, characterized in that: The front end of the air guide plate (161) is provided with an atomizing spray device (17), and the outside of the atomizing spray device (17) is provided with a water inlet pipe (18). Multiple atomizing nozzles (19) are arranged in an equidistant array on the pipe of the atomizing spray device (17).

4. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 1, characterized in that: The main body fastener (11) has a rectangular protrusion at the buckle (12). The outer side of the rectangular protrusion is connected to the inner side of the buckle (12) by a pin. The inner side of the main body fastener (11) has a slot corresponding to the heat pipe, and the outer side of the main body fastener (11) has a through groove corresponding to the air supply duct (15).

5. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 1, characterized in that: The front end of the air supply duct (15) is fixedly connected to the inner side of the rectangular fixing member (151). Both ends of the air supply duct (15) are provided with rubber sealing sleeves. The front end of the rectangular fixing member (151) is connected to the rear end of the air outlet box (16) by bolt thread.

6. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 3, characterized in that: The top end of the atomizing spray device (17) is fixedly connected to the bottom end of the water inlet pipe (18), and the upper and lower ends of the atomizing spray device (17) are connected to the output end of the air outlet box (16) by bolt threads. The atomizing spray device (17) is fixedly connected to the atomizing nozzle (19).

7. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 1, characterized in that: The air outlet box (16) is fixedly connected to the upper and lower sides of the air guide plate (161) on the side near the processing mold (2), the air outlet box (16) is fixedly connected to the left and right sides of the air guide plate (162) on the side near the output end, and the inner side of the air outlet box (16) is fixedly connected to the outer side of the air filter plate (163).

8. The high-efficiency cooling device for a hollow injection blow molding machine according to claim 4, characterized in that: The top of the buckle (12) is provided with a slot corresponding to the pin-type buckle (13), and the inner side of the pin-type buckle (13) is fixedly connected to the outer side of the rectangular protrusion.