Liquid silicone delivery device

Abstract

This invention belongs to the field of liquid silicone production technology, and specifically relates to a liquid silicone conveying device. It includes a support frame, in which two silicone material containers, A and B, are respectively installed. Ceramic heating coils are installed on the outer sides of both containers. A plunger pump is installed on each container. A mixer is installed in the support frame and connected to the plunger pumps via pipes. This invention uses the plunger pumps to convey the materials from containers A and B to the mixer. After thorough mixing, the materials are discharged from the dispensing head via the opening of a pneumatic butterfly valve. During the process, the gas generated during heating of the materials in the containers is introduced into the preheating jacket of the mixer to maintain its temperature, thereby maintaining the temperature of the mixing tank and the dispensing head. This device offers advantages such as unobstructed dispensing and high speed, significantly improving the production efficiency of silicone products.

Description

Technical Field

[0001] This utility model relates to the field of liquid silicone production technology, specifically to a liquid silicone conveying device. Background Technology

[0002] Silicone is liquid before molding, which allows it to easily fill complex mold shapes during processing, achieving high-precision molding. It usually exists in a two-component form. The two-component liquid silicone (component A and component B) are precisely measured and thoroughly mixed in a mixing head before being injected into a closed mold cavity. Under the action of heat and pressure, it is quickly vulcanized and cured. This process has a fast production speed, can realize automated large-scale production, and produces products with high dimensional accuracy and excellent detail reproduction. It is suitable for manufacturing precision products with complex shapes, such as mobile phone buttons, smart wearable device accessories, and medical catheter connectors.

[0003] Currently, liquid silicone injection molding involves injecting it into the mold cavity using an injection molding machine. During the feeding process, the material is directly transported to the injection head via a pipeline. As a result, when the temperature of the liquid silicone is low, it can easily create resistance in the material pipeline system of the injection head, which is not conducive to rapid feeding and results in low production efficiency.

[0004] Therefore, we propose a liquid silicone delivery device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a liquid silicone delivery device that solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A liquid silicone conveying device includes a support frame, in which a silicone A container and a silicone B container are respectively installed. Ceramic heating rings are installed on the outside of both silicone A container and silicone B container. A plunger pump is installed on both silicone A container and silicone B container. A mixer is installed in the support frame and is connected to the plunger pump through a pipe.

[0010] The mixer includes a mixing tank, a geared motor, and a spiral blade. The geared motor is installed on the outside of the mixing tank, and the spiral blade is installed inside the mixing tank, with its shaft end fixedly connected to the output shaft end of the geared motor. A pneumatic butterfly valve is installed on the mixing tank, and a glue dispensing head is connected through the pneumatic butterfly valve. A preheating jacket is provided on the outside of both the glue dispensing head and the mixing tank, and the preheating jacket is connected to the A glue tank and the B glue tank through pipes.

[0011] Furthermore, both the top of the A and B rubber barrels are equipped with feeding ports, and both the A and B rubber barrels are equipped with temperature sensors.

[0012] Furthermore, the pipe connecting the plunger pump and the mixer is a Y-shaped three-pipe, and a high-pressure needle valve is installed on the pipe.

[0013] Furthermore, the pipe connecting the plunger pump and the mixer is a Y-shaped three-pipe, and a high-pressure needle valve is installed on the pipe.

[0014] Furthermore, the mixer is located above the A and B rubber barrels, and both the A and B rubber barrels are equipped with exhaust ports.

[0015] Furthermore, the preheating jacket is provided with an inlet and an outlet, with the inlet connected to the exhaust port via a pipe and a pressure relief valve installed at the outlet.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a liquid silicone delivery device, which has the following advantages:

[0018] This invention uses a plunger pump to transport materials from rubber barrels A and B to a mixer. After the materials are thoroughly mixed in the mixer, they are discharged from the dispensing head by opening a pneumatic butterfly valve. During the process, the gas generated during the heating of the materials in the barrels is introduced into the preheating jacket of the mixer to keep the mixer warm, thereby maintaining the temperature inside the mixing tank and the dispensing head. This invention has the advantages of unobstructed dispensing and high speed, and has a positive effect on improving the production efficiency of silicone products. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a partial schematic diagram of the present invention.

[0022] In the diagram: 1. Support; 2. A rubber barrel; 3. B rubber barrel; 4. Ceramic heating coil; 5. Plunger pump; 6. Mixer; 61. Mixing tank; 62. Gear motor; 63. Spiral blade; 64. Pneumatic butterfly valve; 65. Dispensing head; 66. Preheating jacket; 67. Inlet; 68. Outlet; 69. Pressure relief valve; 7. Feed port; 8. Temperature probe; 9. Agitator; 10. High-pressure needle valve; 11. Exhaust port. Detailed Implementation

[0023] 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.

[0024] Example

[0025] like Figures 1-3 As shown in the figure, an embodiment of the present invention discloses a liquid silicone conveying device, including a support 1. An A-type silicone barrel 2 and a B-type silicone barrel 3 are respectively installed in the support 1, and ceramic heating rings 4 are installed on the outer sides of both the A-type and B-type silicone barrels 2 and 3. A plunger pump 5 is installed on both the A-type and B-type silicone barrels 2 and 3. A mixer 6 is installed in the support 1, and the mixer 6 is connected to the plunger pump 5 through a pipe. The plunger pump 5 conveys the materials in the A-type and B-type silicone barrels 2 and 3 to the mixer 6. After the materials are fully mixed in the mixer 6, the dispensing head 65 is opened by a pneumatic butterfly valve 64 to dispense the silicone. During the process, the gas generated by the heating of the materials in the barrels is introduced into the preheating jacket 66 of the mixer 6 to keep the mixer 6 warm, thereby maintaining the temperature of the mixing tank 61 and the dispensing head 65. This device has the advantages of unobstructed dispensing and high speed, and has a positive effect on improving the production efficiency of silicone products.

[0026] The mixer 6 includes a mixing tank 61, a reduction motor 62, and a spiral blade 63. The reduction motor 62 is installed on the outside of the mixing tank 61, and the spiral blade 63 is installed inside the mixing tank 61, with its shaft end fixedly connected to the output shaft end of the reduction motor 62. A pneumatic butterfly valve 64 is installed on the mixing tank 61, and a glue dispensing head 65 is connected through the pneumatic butterfly valve 64. Both the glue dispensing head 65 and the outside of the mixing tank 61 are provided with a preheating jacket 66, and the preheating jacket 66 is connected to the A glue tank 2 and the B glue tank 3 through pipes.

[0027] like Figure 1 As shown, in some embodiments, both the top of the A rubber barrel 2 and the B rubber barrel 3 are provided with a feeding port 7, and both the A rubber barrel 2 and the B rubber barrel 3 are equipped with a temperature sensor 8. The feeding port 7 is the channel for material input into the barrel, and the temperature sensor 8 is mainly used to monitor the temperature change inside the barrel in real time. The ceramic heating coil 4 is dynamically adjusted through the temperature measurement data to ensure that it is within the preset temperature range.

[0028] like Figure 2As shown, in some embodiments, both the A rubber barrel 2 and the B rubber barrel 3 are equipped with a stirrer 9, and the stirring part of the stirrer 9 is located inside the barrel. The main function of the stirrer 9 is to mix the materials evenly and avoid solidification and stratification.

[0029] like Figure 2 As shown, in some embodiments, the pipe connecting the plunger pump 5 and the mixer 6 is a Y-shaped three-pipe, and a high-pressure needle valve 10 is installed on the pipe. The core working principle of the high-pressure needle valve 10 is to use the movement of the needle valve core to regulate the fluid flow. When it is necessary to open or close the fluid channel, the valve core moves axially to gradually open or close the fluid channel.

[0030] like Figure 2 As shown, in some embodiments, the mixer 6 is located above the A rubber barrel 2 and the B rubber barrel 3. Both the A rubber barrel 2 and the B rubber barrel 3 are provided with exhaust ports 11. The exhaust ports 11 are mainly used to discharge the gas generated by the material in the barrel during the heating process and maintain the pressure balance in the barrel.

[0031] like Figure 3 As shown, in some embodiments, the preheating jacket 66 is provided with an inlet 67 and an outlet 68, and the inlet 67 is connected to the exhaust port 11 through a pipe, and a pressure relief valve 69 is installed at its outlet 68. The main function of the preheating jacket 66 is to regulate the temperature in the mixing tank 61 and the dispensing head 65 by circulating the heat medium. The pressure relief valve 69 is mainly used to automatically open and discharge the medium when the pressure exceeds the safety set value to prevent the equipment from exploding or rupturing due to overpressure.

[0032] In use, the materials in the A rubber barrel 2 and B rubber barrel 3 are transported to the mixer 6 by the plunger pump 5. After the materials are fully mixed by the mixer 6, the glue is discharged from the self-dispensing head 65 by opening the pneumatic butterfly valve 64. During the process, the gas generated by the heating of the materials in the barrels is introduced into the preheating jacket 66 of the self-dispensing head 6 to keep the mixer 6 warm, thereby maintaining the temperature in the mixing tank 61 and the self-dispensing head 65. It has the advantages of unobstructed glue dispensing and fast speed, which has a good positive significance for improving the production efficiency of silicone products.

[0033] In summary, the materials in the A and B rubber barrels 2 and 3 are transported to the mixer 6 by the plunger pump 5. After the materials are fully mixed by the mixer 6, the glue is discharged from the self-dispensing head 65 by opening the pneumatic butterfly valve 64. During the process, the gas generated by the heating of the materials in the barrels is introduced into the preheating jacket 66 of the self-dispensing mixer 6 to keep the mixer 6 warm, thereby maintaining the temperature in the mixing tank 61 and the self-dispensing head 65. This method has the advantages of unobstructed glue dispensing and fast speed, which has a positive effect on improving the production efficiency of silicone products.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid silicone delivery device, comprising a support (1), characterized in that: The bracket (1) is equipped with a rubber barrel A (2) and a rubber barrel B (3), and ceramic heating rings (4) are installed on the outside of both rubber barrel A (2) and rubber barrel B (3). A plunger pump (5) is installed on both rubber barrel A (2) and rubber barrel B (3). A mixer (6) is installed in the bracket (1), and the mixer (6) is connected to the plunger pump (5) through a pipe. The mixer (6) includes a mixing tank (61), a geared motor (62), and a spiral blade (63). The geared motor (62) is installed on the outside of the mixing tank (61), and the spiral blade (63) is installed inside the mixing tank (61), with its shaft end fixedly connected to the output shaft end of the geared motor (62). A pneumatic butterfly valve (64) is installed on the mixing tank (61), and a glue dispensing head (65) is connected through the pneumatic butterfly valve (64). A preheating jacket (66) is provided on the outside of both the glue dispensing head (65) and the mixing tank (61), and the preheating jacket (66) is connected to the A glue tank (2) and the B glue tank (3) through a pipe.

2. The liquid silicone conveying device according to claim 1, characterized in that: Both the top of the A rubber barrel (2) and the B rubber barrel (3) are provided with a feeding port (7), and both the A rubber barrel (2) and the B rubber barrel (3) are equipped with a temperature sensor (8).

3. The liquid silicone conveying device according to claim 1, characterized in that: Both the A rubber barrel (2) and the B rubber barrel (3) are equipped with a stirrer (9), and the stirring part of the stirrer (9) is located inside the barrel.

4. The liquid silicone conveying device according to claim 1, characterized in that: The pipe connecting the plunger pump (5) and the mixer (6) is a Y-shaped three-pipe, and a high-pressure needle valve (10) is installed on the pipe.

5. The liquid silicone conveying device according to claim 1, characterized in that: The mixer (6) is located above the A rubber barrel (2) and the B rubber barrel (3), and both the A rubber barrel (2) and the B rubber barrel (3) are provided with exhaust ports (11).

6. A liquid silicone conveying device according to claim 5, characterized in that: The preheating interlayer (66) is provided with an inlet (67) and an outlet (68), and the inlet (67) is connected to the exhaust port (11) through a pipe, and a pressure relief valve (69) is installed at its outlet (68).

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