Temperature control structure of injection molding material cylinder

Abstract

The embodiment of the utility model provides a temperature control structure of an injection molding material barrel, which comprises a screw rod, a nozzle, a material barrel and an injection table front plate, the nozzle is arranged at one end of the material barrel, the injection table front plate is arranged at the other end of the material barrel, and the screw rod is inserted into and penetrates through the injection table front plate and the material barrel to extend into the nozzle. The charging barrel is provided with a temperature control assembly, a heating assembly and an energy storage layer from inside to outside, the temperature control assembly comprises a first temperature control part and a second temperature control part, the first temperature control part and the second temperature control part are each internally provided with a ring-shaped conformal water path, and in the injection molding process, the heating assembly can work under the condition of uninterruptible power supply, so that the energy storage layer is not damaged; and when the set temperature is inconsistent with the actual temperature, the input pipe of the temperature control assembly inputs the temperature control medium for temperature control, so that excessive power consumption caused by a frequent intermittent power-on means can be avoided, the external energy storage layer can also reduce heat dissipation to a certain extent, energy consumption is further avoided, and the service life of the device is prolonged. And the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model discloses an injection molding equipment field relates to but is not limited to, especially relates to a kind of temperature control structure of injection molding barrel. BACKGROUND

[0002] Injection molding machine is through barrel in production process, solid plastic particles are fused into fluid from solid, and then fluid plastic is injected into mold to form after cooling.

[0003] In the use process of injection molding machine, the temperature control of barrel is very important, too high or too low can cause adverse effects on plastic products, and also can aggravate the wear of barrel and its associated parts, reduce the service life of barrel, but the temperature control function of existing barrel is mostly through the means of keeping heating equipment to frequently intermittent power supply to meet the temperature requirement set, and this kind of temperature control mode has the technical problems of large power consumption and large barrel temperature fluctuation, which increases production cost UTILITY MODEL CONTENTS

[0004] (1) technical problem to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a kind of temperature control structure of injection molding barrel, which solves the technical problems of large power consumption and large barrel temperature fluctuation in the temperature control mode of existing barrel, which is through the means of keeping heating equipment to frequently intermittent power supply to meet the temperature requirement set of barrel.

[0006] (2) technical scheme

[0007] The utility model aims at providing a kind of temperature control structure of injection molding barrel, it includes screw, nozzle, barrel and shoot platform front plate, the nozzle is arranged at one end of barrel, the shoot platform front plate is arranged at the other end of barrel, the screw is inserted and passes through shoot platform front plate and barrel and extends to the inside of nozzle, the barrel and screw are also provided with the reverse ring of sleeve on screw, the barrel is provided with temperature control assembly, heating assembly and energy storage layer from inside to outside, the temperature control assembly includes first temperature control and second temperature control, the first temperature control and second temperature control inside are all provided with a back loop shape with shape waterway, one end of the shape waterway is provided with input pipe, the other end of the shape waterway is provided with output pipe.

[0008] Preferably, the nozzle is provided with a material injection hole communicating with the inside of the barrel.

[0009] Preferably, the heating assembly includes first heater, second heater, third heater and fourth heater, wherein the first heater, second heater, third heater and fourth heater are sequentially arranged on the outside of the barrel from the shoot platform front plate to the nozzle direction.

[0010] Preferably, the input pipe comprises a first input pipe and a second input pipe, the first input pipe and the second input pipe are connected with an input joint, and the input joint is connected with the circulating pump.

[0011] Preferably, the output pipe comprises a first output pipe and a second output pipe, the other ends of the first output pipe and the second output pipe are connected with an output joint, and the output joint is connected with the coolant tank.

[0012] Preferably, the two ends of the conformal water channel are respectively an input port and an output port, and the input port and the output port are both provided with a quick connector.

[0013] Preferably, the first temperature control component and the second temperature control component are made of an aluminum alloy material.

[0014] (Three) beneficial effects

[0015] In the injection molding process, the heating assembly can work without power interruption, and when the set temperature and the actual temperature are inconsistent, the input pipe of the temperature control assembly inputs the temperature control medium for temperature control, so as to avoid excessive power consumption caused by frequent intermittent power supply, and the external energy storage layer can also reduce heat dissipation to a certain extent, further avoiding energy consumption and reducing production cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical scheme of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the technical scheme of the utility model, and do not constitute a limitation on the technical scheme of the utility model.

[0017] Fig. 1 is a semi-sectional view of the temperature control structure of the injection molding barrel;

[0018] Fig. 2 is a semi-sectional view of the temperature control assembly of the temperature control structure of the injection molding barrel;

[0019] Fig. 3 is a front view of the temperature control assembly of the temperature control structure of the injection molding barrel, to show the shape of the internal conformal water channel;

[0020] Explanation of reference signs:

[0021] 1. Screw; 2. Nozzle; 21. Injection hole; 3. Barrel; 4. Front plate of injection stage; 5. Check ring; 6. Temperature control assembly; 61. First temperature control unit; 62. Second temperature control unit; 63. Conformal water channel; 64. Inlet; 65. Outlet; 7. Heating assembly; 71. First heater; 72. Second heater; 73. Third heater; 74. Fourth heater; 8. Energy storage layer; 9. First input pipe; 10. Second input pipe; 11. First output pipe; 12. Second output pipe; 13. Input connector; 14. Output connector. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] The following is in conjunction with the appendix Figs. 1 to 3 Further description: This utility model discloses a temperature control structure for an injection molding cylinder, including a screw 1, a nozzle 2, a barrel 3, and a front plate 4 for the injection stage. The nozzle 2 is located at one end of the barrel 3, and the front plate 4 for the injection stage is located at the other end of the barrel 3. The screw 1 is inserted into and passes through the front plate 4 for the injection stage and the barrel 3, extending into the nozzle 2. A check ring 5 is also provided between the barrel 3 and the screw 1, sleeved on the screw 1. The barrel 3 is provided with a temperature control component 6, a heating component 7, and an energy storage layer 8 arranged from the inside out. The temperature control component 6 includes a first temperature control element 61 and a second temperature control element 62, wherein the first temperature control element 61 and the second temperature control element 62 are... The control 62 has a semi-circular structure and is closely attached to the upper and lower ends of the barrel 3. The first temperature control 61 and the second temperature control 62 are both provided with a loop-shaped conformal water channel 63 inside their semi-circular bodies. One end of the conformal water channel 63 is provided with an input pipe and the other end is provided with an output pipe. The input pipe is located on the feeding side near the barrel 3, and the output pipe is located on the nozzle 2 side. This ensures that the temperature control level is from high to low during the temperature control process, so as to avoid affecting the heating mode of the conveying section, plasticizing section, metering section and nozzle 2 in the barrel 3 from low to high during the injection molding process.

[0024] In a preferred embodiment, the nozzle 2 is provided with an injection hole 21 that communicates with the inside of the barrel 3, so as to inject molten plastic into the mold through the injection hole 21.

[0025] In a preferred embodiment, the heating assembly 7 includes a first heater 71, a second heater 72, a third heater 73, and a fourth heater 74, wherein the first heater 71, the second heater 72, the third heater 73, and the fourth heater 74 are sequentially arranged on the outside of the barrel 3 from the front plate 4 of the injection stage toward the nozzle 2. Furthermore, the heaters are one or a combination of resistance heating coils or electromagnetic heaters.

[0026] In the preferred embodiment, the input pipe comprises a first input pipe 9 and a second input pipe 10, one end of which is connected to the first temperature control 61 and the second temperature control 62 respectively, and the other end of which is connected to the input joint 13, and the input joint 13 is connected to the circulating pump through the connecting pipe.

[0027] In the preferred embodiment, the output pipe comprises a first output pipe 11 and a second output pipe 12, one end of which is connected to the first temperature control 61 and the second temperature control 62 respectively, and the other end of which is connected to the output joint 14, and the output joint 14 is connected to the cooling liquid tank through the connecting pipe.

[0028] In the preferred embodiment, the two ends of the conformal water channel 63 are the input port 64 and the output port 65, and the input port 64 and the output port 65 are both equipped with quick connectors and are connected to the input pipe and the output pipe through the quick connectors.

[0029] In the preferred embodiment, the first temperature control 61 and the second temperature control 62 are made of aluminum alloy material, and both of them are made by 3D printing.

[0030] In the preferred embodiment, the energy storage layer 8 is a composite thermal insulation material to facilitate heat storage and prevent heat from dissipating too quickly, achieving effective utilization of heat.

[0031] In the injection molding process, the heating assembly can work continuously without power, and when the set temperature and the actual temperature are inconsistent, the input pipe of the temperature control assembly will input temperature control medium such as air, water or cooling liquid for temperature control, and the temperature of the input temperature control medium is also controllable, so as to avoid the large power consumption caused by frequent intermittent power on, and the external energy storage layer can also reduce the heat dissipation to a certain extent, further avoiding the consumption of energy and reducing the production cost.

[0032] Although the technical solutions according to the present application have been described with reference to a plurality of different embodiments, aspects and features, it is not intended to limit the scope of the present application, but modifications thereof are included within the broad scope of the foregoing disclosure, drawings and claims.

Claims

1. A temperature control structure of an injection molding barrel, comprising a screw, a nozzle, a barrel and a front plate of a shooting table, the nozzle is arranged at one end of the barrel, the front plate of the shooting table is arranged at the other end of the barrel, the screw is inserted and extends through the front plate of the shooting table and the barrel to the inside of the nozzle, and a check ring sleeved on the screw is further arranged between the barrel and the screw, characterized in that: The barrel is provided with a temperature control assembly, a heating assembly and an energy storage layer from inside to outside, the temperature control assembly comprises a first temperature control device and a second temperature control device, the first temperature control device and the second temperature control device are internally provided with a loop-shaped conformal water channel, one end of the conformal water channel is provided with an input pipe, and the other end of the conformal water channel is provided with an output pipe.

2. The temperature control structure for an injection molding barrel according to claim 1, wherein: The nozzle is provided with a material injection hole communicating with the inside of the barrel.

3. The temperature control structure for an injection molding barrel according to claim 1, wherein: The heating assembly comprises a first heater, a second heater, a third heater and a fourth heater, wherein the first heater, the second heater, the third heater and the fourth heater are sequentially arranged on the outside of the barrel from the front plate of the injection table to the nozzle direction.

4. The temperature control structure for an injection molding barrel according to claim 1, wherein: The input pipe comprises a first input pipe and a second input pipe, the first input pipe and the second input pipe are connected with an input joint, and the input joint is connected with a circulating pump.

5. The temperature control structure for an injection molding barrel according to claim 1, wherein: The output pipe comprises a first output pipe and a second output pipe, the other end of the first output pipe and the second output pipe is connected with an output joint, and the output joint is connected with a cooling liquid tank.

6. The temperature control structure for an injection molding barrel according to claim 1, wherein: The two ends of the conformal water channel are respectively an input port and an output port, and the input port and the output port are both provided with a quick connector.

7. The temperature control structure for an injection molding barrel according to claim 1, wherein: The first temperature control device and the second temperature control device are made of aluminum alloy.

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