A plastic bottle blow molding mold temperature uniformity control device

Abstract

This utility model belongs to the field of plastic bottle blow molding molds, and in particular, it relates to a temperature uniformity control device for plastic bottle blow molding molds. The device includes a worktable and a control module. Two cylinders are fixedly mounted on the worktable, and plastic bottle blow molding mold one and plastic bottle blow molding mold two are respectively fixedly mounted on the output ends of the two cylinders. Both plastic bottle blow molding mold one and plastic bottle blow molding mold two are equipped with multiple actuators. The control module is located on the worktable, and the multiple actuators are connected to the control module. The control mechanism includes a cavity, a temperature sensor, an air inlet pipe, a three-way pipe, a first hose, a second hose, and a first solenoid valve. Both plastic bottle blow molding mold one and plastic bottle blow molding mold two have multiple cavities. This utility model, through the cooperation of its various components, can achieve the effect of regulating the surface temperature uniformity of the plastic bottle blow molding mold, thereby improving product quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle blow molding die technology, and in particular to a device for controlling the temperature uniformity of plastic bottle blow molding die. Background Technology

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. It's a common method for forming plastic bottles. The principle involves heating and melting plastic granules to create a malleable material, which is then injected into a mold and blown into a specific shape using air pressure. This method can produce plastic bottles of various shapes, such as cylindrical, square, and oval. The main advantages of blow molding are high production efficiency, low cost, high product precision, and aesthetically pleasing appearance, making it widely used in daily necessities, pharmaceutical packaging, cosmetics, and other fields. Existing blown film molds generally only have one heating method at the die opening. There is a set of heaters at the die opening position, which are controlled by a temperature controller to set a uniform heating temperature. However, since a set of heaters can only be set to one temperature, blown plastic bottles are prone to "thickness", that is, the thickness in one or several places exceeds the predetermined standard, thus affecting the quality of the plastic bottles. Therefore, this application proposes a device for controlling the temperature uniformity of plastic bottle blow molding molds to solve the problems in the prior art. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for controlling the temperature uniformity of plastic bottle blow molding molds.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A device for controlling the temperature uniformity of a plastic bottle blow molding die, characterized in that it includes a worktable and a control module; Two cylinders are fixedly installed on the workbench. Plastic bottle blow molding mold one and plastic bottle blow molding mold two are fixedly installed on the output ends of the two cylinders respectively. Both plastic bottle blow molding mold one and plastic bottle blow molding mold two are equipped with multiple actuators. A control module is provided on the workbench, and the multiple actuators are connected to the control module. The actuator includes a cavity, a temperature sensor, an air inlet pipe, a three-way pipe, a hose one, a hose two, and a solenoid valve one. Both the plastic bottle blow molding mold one and the plastic bottle blow molding mold two have multiple cavities. Multiple non-toxic temperature sensors are fixedly installed on the plastic bottle blow molding mold one and the plastic bottle blow molding mold two, and each corresponds to one of the multiple cavities. Through the coordinated design between the plastic bottle blow molding mold one, the plastic bottle blow molding mold two, the cold air blower, the hot air blower, the control module, and the actuator, the uniformity of the surface temperature of the plastic bottle blow molding mold one and the plastic bottle blow molding mold two is ensured through continuous monitoring and adjustment, thereby improving the molding quality of the plastic bottle.

[0005] Specifically, multiple temperature sensors are connected to the control module. These sensors monitor the temperature of various parts of both the first and second plastic bottle blow molding molds in real time and feed the signals back to the control module. Each cavity is sealed with an air inlet pipe, and one end of each air inlet pipe is sealed with a T-connector. Through the combined action of multiple air inlet pipes and T-connectors, cold and hot air can be delivered to the multiple cavities.

[0006] Specifically, the two ends of the three-way pipe are respectively sealed and connected to hose one and hose two. Each end of the three-way pipe is equipped with a solenoid valve one. The two solenoid valves one correspond to hose one and hose two respectively. Both solenoid valves one are connected to the control module. The opening and closing of hose one and hose two are controlled by the two solenoid valves one.

[0007] Specifically, a cooler is fixedly installed on the workbench. One end of the cooler is sealed and connected to a distribution pipe, and one end of each of the multiple hoses is sealed and connected to the distribution pipe. Through the drive of the cooler and the function of the distribution pipe and the multiple hoses, the effect of delivering cool air to multiple cavities can be achieved.

[0008] Specifically, a hot air blower is fixedly installed on the workbench. One end of the hot air blower is sealed and connected to a second diverter pipe. One end of multiple second hoses is also sealed and connected to the second diverter pipe, which is used to deliver hot air into multiple cavities.

[0009] Specifically, both the hot air blower and the cold air blower are connected to the control module, which drives and controls them through a preset program.

[0010] Specifically, both the first and second plastic bottle blow molding molds are sealed with multiple exhaust pipes. One end of each exhaust pipe extends into a different cavity. Each exhaust pipe is equipped with a solenoid valve, which is connected to a control module. The control module controls the opening and closing of the solenoid valves, thereby venting the gas from the corresponding cavity through the exhaust pipe, thus achieving the effect of regulating exhaust.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a temperature uniformity control device for plastic bottle blow molding molds. Through the coordinated design of plastic bottle blow molding mold 1, plastic bottle blow molding mold 2, cold air blower, hot air blower, control module, and actuator, the device continuously monitors and adjusts the surface temperature of plastic bottle blow molding mold 1 and plastic bottle blow molding mold 2 to ensure the uniformity of surface temperature, thereby improving the molding quality of plastic bottles. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary. The structures, proportions, sizes, etc., shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance, and any modification of the structure, change of the proportional relationship, or adjustment of the size is not permitted.

[0013] Figure 1 This is a three-dimensional structural diagram of a temperature uniformity control device for a plastic bottle blow molding die proposed in this utility model. Figure 2 This is a bottom view of the structure of a temperature uniformity control device for a plastic bottle blow molding die proposed in this utility model. Figure 3 This is a schematic diagram of the temperature uniformity control device for a plastic bottle blow molding die proposed in this utility model. Figure 4 This is an assembly diagram of a temperature uniformity control device for a plastic bottle blow molding die proposed in this utility model. Figure 5 for Figure 3 A magnified structural diagram of point A in the middle.

[0014] In the diagram: 1. Workbench; 2. Cylinder; 3. Plastic bottle blow molding mold one; 4. Plastic bottle blow molding mold two; 5. Cavity; 6. Temperature sensor; 7. Inlet pipe; 8. T-connector; 9. Hose one; 10. Hose two; 11. Solenoid valve one; 12. Air cooler; 13. Diverter pipe one; 14. Hot air blower; 15. Diverter pipe two; 16. Control module; 17. Exhaust pipe. Detailed Implementation

[0015] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Reference Figures 1-5 A device for controlling the temperature uniformity of a plastic bottle blow molding die, comprising a workbench 1 and a control module 16; Two cylinders 2 are fixedly installed on the workbench 1. Plastic bottle blow molding mold 3 and plastic bottle blow molding mold 4 are fixedly installed on the output end of the two cylinders 2 respectively. Multiple actuators are provided on both plastic bottle blow molding mold 3 and plastic bottle blow molding mold 4. A control module 16 is provided on the workbench 1. Multiple actuators are connected to the control module 16. The actuator includes a cavity 5, a temperature sensor 6, an air inlet pipe 7, a three-way pipe 8, a first hose 9, a second hose 10, and a solenoid valve 11. Multiple cavities 5 are provided on both the first and second plastic bottle blow molding molds 3 and 4. Multiple temperature sensors 6 are fixedly installed on both molds 3 and 4, each corresponding to one of the cavities 5. Through the coordinated design of the first and second plastic bottle blow molding molds 3, 4, a cold air blower 12, a hot air blower 14, a control module 16, and the actuator, continuous monitoring and adjustment ensure the uniformity of the surface temperature of the first and second plastic bottle blow molding molds 3 and 4, thereby improving the molding quality of the plastic bottle.

[0017] In this embodiment, multiple temperature sensors 6 are connected to the control module 16. The multiple temperature sensors 6 monitor the temperature of various parts of the plastic bottle blow molding mold 3 and the plastic bottle blow molding mold 4 in real time and feed the signals back to the control module 16. An air inlet pipe 7 is sealed and connected inside the cavity 5. One end of each air inlet pipe 7 is sealed and connected to a three-way pipe 8. Through the action of multiple air inlet pipes 7 and three-way pipes 8, the effect of delivering cold air and hot air into multiple cavities 5 can be achieved.

[0018] In this embodiment, the two ends of the three-way pipe 8 are respectively sealed and connected to a first hose 9 and a second hose 10. Both ends of the three-way pipe 8 are provided with a first solenoid valve 11. The two first solenoid valves 11 correspond to the first hose 9 and the second hose 10 respectively. The two first solenoid valves 11 are connected to the control module 16. The opening and closing of the first hose 9 and the second hose 10 can be controlled by the two first solenoid valves 11.

[0019] In this embodiment, a cooler 12 is fixedly installed on the workbench 1. One end of the cooler 12 is sealed and connected to a diversion pipe 13. One end of each of the multiple hoses 9 is sealed and connected to the diversion pipe 13. Through the drive of the cooler 12 and the function of the diversion pipe 13 and the multiple hoses 9, the effect of delivering cold air into multiple cavities 5 can be achieved.

[0020] In this embodiment, a hot air blower 14 is fixedly installed on the workbench 1. One end of the hot air blower 14 is sealed and connected to a diversion pipe 15. One end of each of the multiple flexible hoses 10 is sealed and connected to the diversion pipe 15, which is used to deliver hot air into the multiple cavities 5.

[0021] In this embodiment, both the hot air blower 14 and the cold air blower 12 are connected to the control module 16. The hot air blower 14 and the cold air blower 12 are driven and controlled by a preset program on the control module 16. The hot air blower 14 and the cold air blower 12 are common in daily life and can be implemented by those skilled in the art. Therefore, they will not be described in detail.

[0022] In this embodiment, both the first plastic bottle blow molding mold 3 and the second plastic bottle blow molding mold 4 are sealed with multiple exhaust pipes 17. One end of each exhaust pipe 17 extends into a multiple cavity 5. Each exhaust pipe 17 is equipped with a solenoid valve 2, which is connected to the control module 16. The control module 16 controls the opening and closing of the multiple solenoid valves 2, thereby venting the gas in the corresponding cavity 5 through the corresponding exhaust pipe 17, thus achieving the effect of regulating exhaust.

[0023] Working principle: During use, the control module 16 drives and controls multiple solenoid valves 11, multiple solenoid valves 2, two cylinders 2, a cold air blower 12, and a hot air blower 14. Simultaneously, multiple temperature sensors 6 monitor the stability at different positions inside the plastic bottle blow molding molds 3 and 4, and transmit the monitoring data to the control module 16. First, driven by the hot air blower 14 and through the action of the diversion pipe 15 and multiple hoses 10, hot air is delivered into the multiple cavities 5 on the plastic bottle blow mold 3 and the plastic bottle blow mold 4, thereby heating the plastic bottle blow mold 3 and the plastic bottle blow mold 4 to the set initial temperature; at the same time, multiple temperature sensors 6 monitor the temperature of various parts of the plastic bottle blow mold 3 and the plastic bottle blow mold 4 in real time and feed the signal back to the control module 16. The two cylinders 2 drive the plastic bottle blow molding die 3 and the plastic bottle blow molding die 4 to make close contact, and blow the raw material through the plastic bottle blow molding device. During the blow molding process, the surface temperatures of the plastic bottle blow molding mold 3 and the plastic bottle blow molding mold 4 change due to the injection of molten plastic and the blowing pressure. If the temperature of a certain part is too high, the control module 16 will, based on the feedback signal from the temperature sensor 6 at the corresponding location, activate the air cooler 12 and open the solenoid valve 11 at the corresponding location. The air cooler will then be delivered to the corresponding cavity 5 through the diverter pipe 13 and the hose 9 at the corresponding location, thereby increasing the flow rate of the cooling medium at that location and reducing the temperature.

[0024] Conversely, if the temperature of a certain part is too low, the control module 16 will control the hot air blower 14 to increase the heating power of that part, so that the temperature rises. In summary, by continuously monitoring and adjusting, the uniformity of surface temperature of plastic bottle blow molding mold 13 and plastic bottle blow molding mold 24 is ensured, thereby improving the molding quality of plastic bottles.

[0025] The technological advancements of this invention compared to existing technologies are: by coordinating the various components, the uniformity of the surface temperature of the plastic bottle blow molding die can be adjusted, thereby improving product quality. Moreover, the structure is simple and more practical.

Claims

1. A device for controlling the temperature uniformity of a plastic bottle blow molding die, characterized in that, Includes a workbench (1) and a control module (16); Two cylinders (2) are fixedly installed on the workbench (1). Plastic bottle blow molding mold one (3) and plastic bottle blow molding mold two (4) are fixedly installed on the output ends of the two cylinders (2). Multiple actuators are provided on both plastic bottle blow molding mold one (3) and plastic bottle blow molding mold two (4). A control module (16) is provided on the workbench (1). Multiple actuators are connected to the control module (16). The actuator includes a cavity (5), a temperature sensor (6), an air inlet pipe (7), a three-way pipe (8), a first hose (9), a second hose (10), and a first solenoid valve (11). Both the first plastic bottle blow molding mold (3) and the second plastic bottle blow molding mold (4) have multiple cavities (5). Multiple temperature sensors (6) are fixedly installed on the first plastic bottle blow molding mold (3) and the second plastic bottle blow molding mold (4) and correspond to the multiple cavities (5).

2. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 1, characterized in that, Multiple temperature sensors (6) are connected to the control module (16), and an air inlet pipe (7) is sealed inside the cavity (5). One end of the air inlet pipe (7) is sealed with a three-way pipe (8).

3. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 2, characterized in that, The two ends of the three-way pipe (8) are respectively sealed and connected to hose one (9) and hose two (10).

4. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 3, characterized in that, The three-way pipe (8) is equipped with solenoid valve one (11) at both ends. The two solenoid valves one (11) correspond to the hose one (9) and hose two (10) respectively. The two solenoid valves one (11) are connected to the control module (16).

5. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 3, characterized in that, A cooler (12) is fixedly installed on the workbench (1). One end of the cooler (12) is sealed and connected to a diverter pipe (13). One end of each of the multiple hoses (9) is sealed and connected to the diverter pipe (13).

6. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 5, characterized in that, A hot air blower (14) is fixedly installed on the workbench (1). One end of the hot air blower (14) is sealed and connected to a second diverter pipe (15). One end of each of the multiple second hoses (10) is sealed and connected to the second diverter pipe (15).

7. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 6, characterized in that, The hot air blower (14) and the cold air blower (12) are both connected to the control module (16).

8. The device for controlling the temperature uniformity of a plastic bottle blow molding die according to claim 1, characterized in that, Both the first (3) and the second (4) of the plastic bottle blow molding mold are sealed with multiple exhaust pipes (17). One end of each of the multiple exhaust pipes (17) extends into the multiple cavities (5). Each of the multiple exhaust pipes (17) is equipped with a solenoid valve 2, and each of the multiple solenoid valve 2 is connected to the control module (16).

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