A production mold for a break-resistant plastic product

Abstract

This utility model relates to the field of plastic product injection molding technology, specifically to a production mold for impact-resistant plastic products. It includes a moving mold, with a fixed mold on one side of the moving mold. The moving mold is connected to an injection molding machine. A serpentine water-cooling pipe is located inside the moving mold. One end of the serpentine water-cooling pipe is connected to a serpentine copper pipe. Several thermoelectric generators are located on the surface of the serpentine copper pipe. A fixed box is located outside the serpentine copper pipe. A cooling fan is located at the top of the fixed box. A voltage booster and regulator are located on one side of the fixed box. The voltage booster and regulator are connected to an energy storage capacitor. The output end of the serpentine copper pipe is connected to a radiator. The output port of the radiator is connected to a water tank. The water tank is connected to a water pump. The water pump is connected to the other end of the serpentine water-cooling pipe. By utilizing the structure of the serpentine copper pipe, thermoelectric generators, fixed box, cooling fan, voltage booster and regulator, and energy storage capacitor, this invention solves the problem of low energy efficiency in existing mold water-cooling systems where the coolant absorbs heat from the mold and circulates directly without recovering waste heat.

Description

Technical Field

[0001] This utility model relates to the field of plastic product injection molding technology, specifically a production mold for impact-resistant plastic products. Background Technology

[0002] Injection molds mainly consist of molding components, gating systems, guiding components, ejection mechanisms, temperature control systems, venting systems, and supporting components. They are tools for producing plastic products and for giving these products a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into the mold cavity under high pressure using an injection molding machine, and then cooling and solidifying it to obtain the molded product. Although the structure of the mold may vary greatly due to differences in the type and properties of the plastic, the shape and structure of the plastic product, and the type of injection molding machine, the basic structure remains the same.

[0003] In existing mold water cooling systems, the coolant absorbs heat from the mold and circulates directly without recovering or utilizing the waste heat, resulting in low energy efficiency.

[0004] Therefore, it is particularly important to design a production mold for impact-resistant plastic products to overcome the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of this invention is to provide a production mold for impact-resistant plastic products to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A production mold for impact-resistant plastic products includes a moving mold, a fixed mold on one side of the moving mold, the moving mold being connected to an injection molding machine, a serpentine water-cooling pipe inside the moving mold, one end of the serpentine water-cooling pipe being connected to a serpentine copper pipe, a plurality of thermoelectric generators on the surface of the serpentine copper pipe, a fixed box outside the serpentine copper pipe, a cooling fan at the top of the fixed box, a voltage booster and regulator on one side of the fixed box, the voltage booster and regulator being connected to an energy storage capacitor, the output end of the serpentine copper pipe being connected to a radiator, the output port of the radiator being connected to a water tank, the water tank being connected to a water pump, and the water pump being connected to the other end of the serpentine water-cooling pipe.

[0008] As a preferred embodiment of this utility model, the thermoelectric generators are arranged in a ring array on the surface of the serpentine copper tube, and several thermoelectric generators are connected in series by wires, with the positive and negative electrodes of adjacent thermoelectric generators connected in sequence.

[0009] As a preferred embodiment of this utility model, the fixed box is equipped with a temperature sensor inside, and the cooling fan is connected to the temperature sensor so that it can be automatically started when the temperature reaches the threshold.

[0010] As a preferred embodiment of this utility model, the boost regulator includes a rectifier bridge and a DC-DC boost chip, outputting a stable 5V voltage. The energy storage capacitor is a supercapacitor. The output terminal of the thermoelectric generator is connected to the input terminal of the rectifier bridge. The output terminal of the rectifier bridge is connected to the input terminal of the DC-DC boost chip. The input terminal of the DC-DC boost chip is connected to the energy storage capacitor. Furthermore, a reverse connection protection diode is connected in series between the DC-DC boost chip and the energy storage capacitor.

[0011] As a preferred embodiment of this utility model, the moving mold includes a moving mold cavity, a guide sleeve, and a cooling water channel. The cooling water channel is connected to a serpentine water-cooling pipe. A vibration sensor is installed on the guide sleeve to monitor the impact vibration of mold opening and closing.

[0012] As a preferred embodiment of this utility model, the fixed mold includes a fixed mold cavity, a gating system, guide pillars, a temperature measuring hole, and an ejection mechanism. The guide pillars are in clearance fit with the guide sleeve of the moving mold. The ejection mechanism includes a return spring and an ejector plate. A temperature sensor is provided in the temperature measuring hole. A pressure sensor is provided at the end of the gating system and on the ejector plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, a production mold for impact-resistant plastic products is designed using a structure consisting of a serpentine water-cooling pipe, a serpentine copper pipe, a thermoelectric generator, a fixed box, a cooling fan, a boost regulator, an energy storage capacitor, and a radiator. Coolant is pumped into the moving mold's serpentine water-cooling pipe via a water pump. After the plastic cools and solidifies, it flows into the serpentine copper pipe. The annular thermoelectric generator on its surface generates electricity using the temperature difference between the coolant and the cooling fan. The fluctuating current is converted to DC by a rectifier bridge, then regulated to 5V by a DC-DC boost chip and stored in a supercapacitor. This power is used to power temperature, pressure, and vibration sensors. This invention solves the problem in existing mold water-cooling systems where the coolant absorbs heat from the mold and circulates directly without recovering waste heat, resulting in low energy efficiency. Attached Figure Description

[0015] Figure 1 This is a plan view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing box assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the thermoelectric generator assembly of this utility model.

[0018] In the diagram: 1. Moving mold; 101. Fixed mold; 102. Injection molding machine; 2. Serpentine water cooling pipe; 201. Serpentine copper pipe; 202. Thermoelectric generator; 203. Fixed box; 204. Cooling fan; 205. Boost voltage regulator; 206. Energy storage capacitor; 207. Radiator; 208. Water tank; 209. Water pump. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] A production mold for impact-resistant plastic products includes a movable mold 1, a fixed mold 101 on one side of the movable mold 1, and an injection molding machine 102. The movable mold 1 has a serpentine water-cooling pipe 2 inside, one end of which is connected to a serpentine copper pipe 201. The surface of the serpentine copper pipe 201 is provided with several thermoelectric generators 202. A fixed box 203 is located outside the serpentine copper pipe 201, and a cooling fan 204 is located at the top of the fixed box 203. A voltage booster 205 is located on one side of the fixed box 203, and the voltage booster 205 is connected to an energy storage capacitor 206. The output end of the serpentine copper pipe 201 is connected to a radiator 207, and the output port of the radiator 207 is connected to a water tank 208. The water tank 208 is connected to a water pump 209, and the water pump 209 is connected to the other end of the serpentine water-cooling pipe 2. The movable mold 1 and the fixed mold 101 close to form a cavity. When the injection molding machine 102 injects molten plastic into the fixed mold... After the gating system of 101 is completed, at the same time, the coolant is pumped into the serpentine water-cooling pipe 2 in the moving mold 1 by the water pump 209. The plastic is cooled and shaped, and after absorbing the heat of the mold, it flows into the serpentine copper pipe 201. The thermoelectric generator 202 on its surface uses the temperature difference between the coolant and the cooling fan 204 to generate electricity. The generated fluctuating current is converted into DC by the rectifier bridge, and then regulated to 5V by the DC-DC boost chip and stored in the supercapacitor 206 to continuously power the temperature sensor, pressure sensor and vibration sensor. The sensor feeds back the mold cavity temperature, melt filling pressure and mold closing vibration data to the injection molding machine control system in real time to dynamically optimize the injection parameters. After molding is completed, the moving mold 1 opens with the injection molding machine, and the ejector plate of the ejector mechanism smoothly ejects the product under the monitoring of the pressure sensor. The coolant is cooled by the radiator 207 and then flows back to the water tank 208 to complete the circulation.

[0025] The thermoelectric generators 202 are arranged in a ring array on the surface of the serpentine copper tube 201, and several thermoelectric generators 202 are connected in series by wires. The positive and negative terminals of adjacent thermoelectric generators 202 are connected in sequence. The ring array is closely attached to the serpentine copper tube 201 to fully absorb the heat of the coolant. The series connection allows the voltages of multiple thermoelectric generators to be superimposed, and the total output voltage can reach more than 5V, which meets the power supply requirements of the sensor. The fixed box 203 is equipped with a temperature sensor, and the cooling fan 204 is connected to the temperature sensor to facilitate automatic start when the temperature reaches the threshold and control the automatic start and stop of the cooling fan 204. The boost regulator 205 includes a rectifier bridge and a DC-DC boost chip, which outputs a stable 5V voltage. The energy storage capacitor 206 is a supercapacitor. The output terminal of the thermoelectric generator 202 is connected to the input terminal of the rectifier bridge, the output terminal of the rectifier bridge is connected to the input terminal of the DC-DC boost chip, and the input terminal of the DC-DC boost chip is connected to the energy storage capacitor 206. Furthermore, a reverse-connection protection diode is connected in series between the DC-DC boost chip and the energy storage capacitor 206 to stabilize the fluctuating voltage of 0.5-5V to 5V DC, ensuring that the sensor's operating voltage is stable. The diode prevents the capacitor from backflashing and damaging the circuit. The moving mold 1 includes a moving mold cavity, a guide sleeve, and a cooling water channel. The cooling water channel is connected to the serpentine water cooling pipe 2. A vibration sensor is installed on the guide sleeve to monitor the impact vibration of mold opening and closing, monitor the vibration data of the guide sleeve in real time, detect mold closing misalignment or wear in advance, and reduce the frequency of mold maintenance. The fixed mold 101 includes a fixed mold cavity, a gating system, guide pillars, a temperature measuring hole, and an ejection mechanism. The guide pillars are clearance-fitted with the guide sleeve of the moving mold 1. The ejection mechanism includes a return spring and an ejector plate. A temperature sensor is installed in the temperature measuring hole. Pressure sensors are installed at the end of the gating system and on the ejector plate. The temperature measuring hole directly monitors the surface temperature of the mold cavity to prevent material degradation caused by local overheating. The ejector plate pressure sensor detects the ejection resistance to avoid ejector jamming or product breakage.

[0026] The working process of this utility model is as follows: When using the production mold of this type of impact-resistant plastic product, the moving mold 1 and the fixed mold 101 first close to form a cavity. When the injection molding machine 102 injects molten plastic into the gating system of the fixed mold 101, at the same time, coolant is pumped into the serpentine water-cooling pipe 2 in the moving mold 1 by the water pump 209. The plastic cools and solidifies, and after absorbing the heat of the mold, it flows into the serpentine copper pipe 201. The thermoelectric generators 202 on its surface are arranged in a ring to generate electricity using the temperature difference between the cold end maintained by the coolant and the cooling fan 204. The generated fluctuating current is then rectified. The flow bridge converts to DC, which is then regulated to 5V by a DC-DC boost chip and stored in supercapacitor 206 to continuously power the temperature sensor, pressure sensor, and vibration sensor. The sensor provides real-time feedback of mold cavity temperature, melt filling pressure, and mold closing vibration data to the injection molding machine control system, dynamically optimizing injection parameters. After molding, the moving mold 1 opens with the injection molding machine, and the ejector plate of the ejector mechanism smoothly ejects the product under the monitoring of the pressure sensor. The coolant is cooled by radiator 207 and then flows back to water tank 208, completing the circulation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Among them, the injection molding machine, production mold and its operation mode are all existing mature technologies and equipment. The control method is to control it through a controller. The control circuit of the controller can be realized by a person skilled in the art through simple circuit connection. It is common knowledge in the field. Therefore, this application will not explain the control method, circuit connection and working principle in detail.

Claims

1. A production mold for impact-resistant plastic products, comprising a moving mold (1), characterized in that: The moving mold (1) has a fixed mold (101) on one side. The moving mold (1) is connected to an injection molding machine (102). The moving mold (1) has a serpentine water cooling pipe (2) inside. One end of the serpentine water cooling pipe (2) is connected to a serpentine copper pipe (201). The surface of the serpentine copper pipe (201) is provided with several thermoelectric generators (202). The outside of the serpentine copper pipe (201) is provided with a fixed box (203). The top of the fixed box (203) is provided with a cooling fan (204). One side of the fixed box (203) is provided with a boost voltage regulator (205). The boost voltage regulator (205) is connected to an energy storage capacitor (206). The output end of the serpentine copper pipe (201) is connected to a radiator (207). The output port of the radiator (207) is connected to a water tank (208). The water tank (208) is connected to a water pump (209). The water pump (209) is connected to the other end of the serpentine water cooling pipe (2).

2. The production mold for a shock-resistant plastic product according to claim 1, characterized in that: The thermoelectric generators (202) are arranged in a ring array on the surface of the serpentine copper tube (201), and several thermoelectric generators (202) are connected in series by wires, with the positive and negative electrodes of adjacent thermoelectric generators (202) connected in sequence.

3. The production mold for impact-resistant plastic products according to claim 1, characterized in that: The fixed box (203) is equipped with a temperature sensor inside, and the cooling fan (204) is connected to the temperature sensor so that it can be automatically started when the temperature reaches the threshold.

4. The production mold for impact-resistant plastic products according to claim 1, characterized in that: The boost regulator (205) includes a rectifier bridge and a DC-DC boost chip, outputting a stable 5V voltage. The energy storage capacitor (206) is a supercapacitor. The output terminal of the thermoelectric generator (202) is connected to the input terminal of the rectifier bridge. The output terminal of the rectifier bridge is connected to the input terminal of the DC-DC boost chip. The input terminal of the DC-DC boost chip is connected to the energy storage capacitor (206). A reverse connection protection diode is connected in series between the DC-DC boost chip and the energy storage capacitor (206).

5. The production mold for impact-resistant plastic products according to claim 1, characterized in that: The moving mold (1) includes a moving mold cavity, a guide sleeve, and a cooling water channel. The cooling water channel is connected to a serpentine water cooling pipe (2). A vibration sensor is installed on the guide sleeve to monitor the impact vibration of the mold opening and closing.

6. The production mold for a shock-resistant plastic product according to claim 5, characterized in that: The fixed mold (101) includes a fixed mold cavity, a gating system, guide pillars, a temperature measuring hole, and an ejection mechanism. The guide pillars are in clearance fit with the guide sleeve of the moving mold (1). The ejection mechanism includes a reset spring and an ejector plate. A temperature sensor is provided in the temperature measuring hole. A pressure sensor is provided at the end of the gating system and on the ejector plate.

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