Liquid silicone mold

Abstract

The utility model provides a kind of liquid silicone mould, belong to mould technical field;Including movable mould and fixed mould, further include:guide post, mounting seat is installed in the mounting hole of fixed mould side surface, guide post is fixed in the side surface of mounting seat, guide sleeve is fixed in the round hole of movable mould side surface, guide post is inserted into guide sleeve when movable mould and fixed mould close mould;Cooling mechanism, the cooling mechanism includes the outer flow channel of being opened in the surface of guide post and the inner circular groove of being opened in the end of guide post.The utility model is through setting inner circular groove and outer flow channel, guide post is inserted into guide sleeve after extruding the air in guide sleeve, airflow respectively flows through inner circular groove and outer flow channel, accelerate the flow speed of airflow in guide post and guide sleeve inner wall, realize the cooling treatment to guide post inside and outside and guide sleeve inner wall, effectively curb the expansion of guide post, to effectively prevent excessive wear between guide post and guide sleeve, guarantee the closing precision of movable mould and fixed mould.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a liquid silicone mold. Background Technology

[0002] Liquid silicone molds mainly consist of a moving mold and a fixed mold. During the production of silicone products, silicone granules are heated and melted, then extruded into the mold cavity formed by the closing of the moving and fixed molds. After cooling and solidification in the mold cavity, the moving and fixed molds separate, and the silicone product can be removed. To improve the accuracy of the closing of the moving and fixed molds, a guide sleeve is usually installed on the moving mold, and a guide post is usually installed on the fixed mold. During mold closing, the guide post is inserted into the guide sleeve to improve the accuracy of the closing of the moving and fixed molds, thereby ensuring the production quality of the silicone product.

[0003] Common liquid silicone molds utilize the cooperation of guide pillars and guide sleeves to improve the accuracy of mold closing between the moving and fixed molds. However, in actual use, due to the high temperature during silicone product manufacturing and the friction when the guide pillars are inserted into the guide sleeves, the guide pillars expand slightly after being heated. After prolonged use, this will exacerbate the wear between the guide pillars and guide sleeves, thereby affecting the mold closing accuracy between the moving and fixed molds. Therefore, this application provides a liquid silicone mold to meet the requirements. Summary of the Invention

[0004] This invention provides a liquid silicone mold to solve the problem of increased wear between the guide post and the guide sleeve, which affects the mold closing accuracy of the moving mold and the fixed mold.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A liquid silicone mold, comprising a moving mold and a fixed mold, further comprising:

[0007] The guide post is installed in the mounting hole on the side of the fixed mold, and the guide post is fixed to the side of the mounting seat. The guide sleeve is fixed in the round hole on the side of the moving mold. When the moving mold and the fixed mold are closed, the guide post is inserted into the guide sleeve.

[0008] The cooling mechanism includes several external flow channels formed on the surface of the guide column and an inner circular groove formed at the end of the guide column. An inclined groove is formed between the inner circular groove and the external flow channels for communication between the inner circular groove and the external flow channels. An annular exhaust groove is formed on the outer wall of the guide column and communicates with the external flow channels. After the guide column is inserted into the guide sleeve, the airflow flows through the inner circular groove and the external flow channels respectively and is discharged from the annular exhaust groove.

[0009] Preferably, a flow guide is installed in the inner circular groove. The flow guide includes a flow guide column disposed in the inner circular groove. Several flow guide plates arranged in a circular pattern are fixed on the circumferential surface of the flow guide column. The flow guide plates are fixed to the inner wall of the inner circular groove, and the inclined groove is located between two adjacent flow guide plates.

[0010] Preferably, the end of the guide column has a curved surface for guiding airflow.

[0011] Preferably, the end of the guide post is provided with a converging groove with an inner wall that is inclined, and the converging groove is used to guide the airflow into the inner circular groove.

[0012] Preferably, the inner wall of the outer flow channel is provided with a groove, which is connected to the annular exhaust groove.

[0013] Preferably, a baffle is fixed to the inner wall of the groove, which is used to guide the airflow discharged from the inclined groove.

[0014] Preferably, the side of the baffle closest to the central axis of the guide post is an inclined surface.

[0015] Preferably, the inner wall of the annular exhaust groove has an inclined guide surface on the side away from the outer flow channel, and the guide surface is used to guide the flow of air.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above scheme, by setting an inner circular groove and an outer flow channel, the air inside the guide sleeve is squeezed after the guide post is inserted into the guide sleeve. The airflow flows through the inner circular groove and the outer flow channel respectively, which accelerates the flow speed of the airflow at the guide post and the inner wall of the guide sleeve, thereby achieving cooling treatment of the inside and outside of the guide post and the inner wall of the guide sleeve, effectively curbing the expansion of the guide post, thus effectively preventing excessive wear between the guide post and the guide sleeve, and ensuring the mold closing accuracy of the moving mold and the fixed mold.

[0018] By setting guide columns and guide vanes, the airflow is guided by the guide columns to flow along the inner wall of the inner circular groove, and the guide vanes increase the contact area between the airflow and the inner wall of the inner circular groove, thereby further improving the cooling capacity of the inner circular groove.

[0019] By setting grooves and baffles, large airflows flow into the grooves after passing through the inner circular groove and the inclined groove, and finally flow out from the annular exhaust groove. The baffles are used to guide the airflow discharged from the inclined groove, reducing the interference of the large airflow with the small airflow in the outer channel when it is discharged from the inclined groove. This effectively prevents the large airflow from interfering with the small airflow that is flowing normally in the outer channel. At the same time, the baffles narrow the airflow channel at the groove, increasing the speed of the airflow at that point. This increases the flow speed of the large airflow at the annular exhaust groove, reducing the pressure at the annular exhaust groove. At this time, the pressure in the outer channel is higher than the pressure at the annular exhaust groove. The pressure difference is used to accelerate the flow speed of the small airflow in the outer channel, further improving the cooling capacity of the outer channel. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the guide sleeve of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the guide post of this utility model;

[0023] Figure 4 This is a cross-sectional view of the flow guide column of this utility model;

[0024] Figure 5 This is a cross-sectional view of the inclined groove of this utility model.

[0025] In the diagram: 1. Moving mold; 2. Fixed mold; 3. Guide pillar; 4. Guide sleeve; 5. Mounting base; 6. Cooling mechanism; 7. Inner circular groove; 8. Outer flow channel; 9. Flow guide; 10. Flow guide pillar; 11. Curved surface; 12. Flow guide plate; 13. Inclined groove; 14. Groove; 15. Annular vent groove; 16. Gathering groove; 17. Baffle plate. Detailed Implementation

[0026] The liquid silicone mold provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0027] like Figures 1-5 As shown, an embodiment of this utility model provides a liquid silicone mold, including a moving mold 1 and a fixed mold 2, and further comprising:

[0028] The guide post 3 is installed in the mounting hole on the side of the fixed mold 2, and the guide post 3 is fixed to the side of the mounting seat 5. The guide sleeve 4 is fixed in the round hole on the side of the moving mold 1. When the moving mold 1 and the fixed mold 2 are closed, the guide post 3 is inserted into the guide sleeve 4.

[0029] Cooling mechanism 6 includes several external flow channels 8 formed on the surface of guide post 3 and an inner circular groove 7 formed at the end of guide post 3. An inclined groove 13 is formed between the inner circular groove 7 and the external flow channels 8 for communication between the inner circular groove 7 and the external flow channels 8. An annular exhaust groove 15 is formed on the outer wall of guide post 3 and communicates with the external flow channels 8. After guide post 3 is inserted into guide sleeve 4, airflow flows through the inner circular groove 7 and the external flow channels 8 respectively and is discharged from the annular exhaust groove 15. During the mold closing process of moving mold 1 and fixed mold 2, when guide post 3 is inserted into guide sleeve 4, it will compress the air in guide sleeve 4, and the airflow can flow through the inner circular groove. The airflow from the inner circular groove 7 and the outer flow channel 8 is discharged from the annular exhaust groove 15. This process can accelerate the airflow speed inside and outside the guide post 3 and the inner wall of the guide sleeve 4, achieve the cooling treatment of the guide post 3 and the guide sleeve 4, effectively suppress the expansion of the guide post 3 caused by heat, thereby reducing excessive wear between the guide post 3 and the guide sleeve 4, and ensuring the mold closing accuracy of the moving mold 1 and the fixed mold 2. The setting of the inclined groove 13 realizes the connection between the inner circular groove 7 and the outer flow channel 8, so that the airflow in the inner circular groove 7 can be quickly discharged outward. At the same time, the inner diameter of the inner circular groove 7 is large, so that a large stream of airflow flows in the inner circular groove 7 and a small stream of airflow flows in the outer flow channel 8.

[0030] like Figure 3 and Figure 4 As shown in this embodiment, a flow guide 9 is installed inside the inner circular groove 7. The flow guide 9 includes a flow guide column 10 disposed inside the inner circular groove 7. Several flow guide plates 12 arranged in a circular pattern are fixed on the circumferential surface of the flow guide column 10. The flow guide plates 12 are fixed to the inner wall of the inner circular groove 7. An inclined groove 13 is located between two adjacent flow guide plates 12. The flow guide column 10 and the flow guide plates 12 can be produced by integral casting with the guide column 3. The flow guide column 10 can guide the airflow to flow along the inner wall of the inner circular groove 7, avoiding disorderly flow of airflow in the inner circular groove 7 and reducing the cooling efficiency. The flow guide plates 12 are fixed to the inner wall of the inner circular groove 7, which can increase the contact area between the airflow and the inner wall of the inner circular groove 7, so that the airflow can more fully carry away the heat at the inner circular groove 7, thereby further improving the cooling capacity of the area where the inner circular groove 7 is located. The inclined groove 13 is located between two adjacent flow guide plates 12, which can ensure that the airflow after being guided smoothly enters the inclined groove 13, ensuring that the airflow path is unobstructed.

[0031] like Figure 3 and Figure 4As shown in this embodiment, the end of the guide column 10 is provided with a curved surface 11 for guiding the airflow. The curved surface 11 can smoothly guide the airflow flowing into the inner circular groove 7, reduce the impact and turbulence of the airflow at the end of the guide column 10, and make the airflow flow more smoothly along the guide column 10 to the inner wall of the inner circular groove 7 and the guide plate 12, thereby improving the stability and efficiency of the airflow and enhancing the cooling effect at the inner circular groove 7.

[0032] like Figures 3-5 As shown in this embodiment, the guide post 3 has a converging groove 16 with an inclined inner wall at its end. The converging groove 16 is used to guide the airflow into the inner circular groove 7. The inclined structure of the converging groove 16 can gather and guide the airflow generated when the guide post 3 is inserted into the guide sleeve 4, so that more airflow can flow smoothly into the inner circular groove 7, avoiding the airflow from being dispersed and lost at the end of the guide post 3, ensuring that there is enough airflow in the inner circular groove 7 to participate in cooling, thereby improving the cooling efficiency of the inner circular groove 7 on the guide post 3.

[0033] like Figure 4 and Figure 5 As shown in this embodiment, the inner wall of the outer flow channel 8 is provided with a groove 14, which is connected to the annular exhaust groove 15. The groove 14 provides flow space for the large flow of air flowing out from the inclined groove 13, so that the large flow of air can smoothly flow into the annular exhaust groove 15 and be discharged through the groove 14.

[0034] like Figure 4 and Figure 5 As shown, in this embodiment, a baffle 17 is fixed to the inner wall of the groove 14. The baffle 17 is used to guide the airflow discharged from the inclined groove 13. The baffle 17 can guide the large stream of air discharged from the inclined groove 13 into the groove 14 along a specific path, reduce the interference of the large stream of airflow with the small stream of airflow in the outer flow channel 8, and ensure that the small stream of airflow can flow smoothly to achieve cooling. At the same time, the baffle 17 can narrow the airflow channel at the groove 14, accelerate the flow speed of the large stream of airflow at the annular exhaust groove 15, and then use the pressure difference to increase the airflow speed at the outer flow channel 8, thereby improving the cooling capacity of the outer flow channel 8.

[0035] like Figure 4 and Figure 5 As shown in this embodiment, the side of the baffle 17 closest to the central axis of the guide post 3 is an inclined surface. The inclined surface structure of the baffle 17 can guide the large airflow discharged from the inclined groove 13 more smoothly, reduce the resistance and turbulence of the airflow, and make the large airflow flow into the groove 14 more smoothly and flow to the annular exhaust groove 15.

[0036] like Figure 4 and Figure 5As shown in this embodiment, an inclined flow-guiding surface is provided on the side of the inner wall of the annular exhaust groove 15 away from the outer flow channel 8. The flow-guiding surface is used to guide the flow of air. The inclined flow-guiding surface can guide the airflow flowing from the inner circular groove 7 and the outer flow channel 8 into the annular exhaust groove 15 to be discharged more smoothly, reduce the stagnation and congestion of airflow in the annular exhaust groove 15, ensure the smoothness of the entire airflow path, and allow the heat at the guide column 3 and guide sleeve 4 to be continuously carried away, thereby further improving the cooling capacity.

[0037] Working principle: During the mold closing process of moving mold 1 and fixed mold 2, when the guide post 3 is inserted into the guide sleeve 4, the guide post 3 will squeeze the air inside the guide sleeve 4. The airflow enters the inner circular groove 7 and the outer flow channel 8 respectively, and finally exits from the annular exhaust groove 15. This process accelerates the airflow speed inside and outside the guide post 3 and the inner wall of the guide sleeve 4, thereby cooling the guide post 3 and the guide sleeve 4, thus inhibiting the thermal expansion of the guide post 3, reducing excessive wear with the guide sleeve 4, and ensuring the mold closing accuracy.

[0038] In the guide component 9 installed in the inner circular groove 7, the curved surface 11 at the end of the guide column 10 can guide the airflow direction. The guide plate 12 on the circumferential surface of the guide column 10 is fixed to the inner wall of the inner circular groove 7. The airflow flows along the inner wall of the inner circular groove 7 under the guidance of the guide column 10. The guide plate 12 increases the contact area between the airflow and the inner wall of the inner circular groove 7, further improving the cooling effect at the inner circular groove 7.

[0039] The guide post 3 has a converging groove 16 with a sloping inner wall at the end, which can guide the airflow to flow more smoothly into the inner circular groove 7. The groove 14 on the inner wall of the outer flow channel 8 is connected to the annular exhaust groove 15. The large flow of air flowing out from the inner circular groove 7 through the sloping groove 13 enters the groove 14 and is finally discharged from the annular exhaust groove 15. The sloping surface on the baffle 17 on the inner wall of the groove 14 can guide the flow of this large flow of air and reduce the interference of the large flow of air with the small flow of air in the outer flow channel 8.

[0040] Meanwhile, the baffle 17 narrows the airflow channel at the groove 14, accelerates the flow speed of the large airflow at the annular exhaust groove 15, and reduces the pressure at the annular exhaust groove 15. At this time, the pressure inside the outer channel 8 is higher than that at the annular exhaust groove 15. The pressure difference can be used to accelerate the flow speed of the small airflow in the outer channel 8, further improving the cooling capacity of the outer channel 8. In addition, the inclined flow-guiding surface on the side of the inner wall of the annular exhaust groove 15 away from the outer channel 8 can guide the airflow to be discharged more smoothly, ensuring the smooth flow of the entire airflow, thereby further improving the cooling capacity of the guide column 3.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A liquid silicone mold, comprising a moving mold (1) and a fixed mold (2), characterized in that, Also includes: The guide post (3) is installed in the mounting hole on the side of the fixed mold (2), and the guide post (3) is fixed on the side of the mounting seat (5). The guide sleeve (4) is fixed in the round hole on the side of the moving mold (1). When the moving mold (1) and the fixed mold (2) are closed, the guide post (3) is inserted into the guide sleeve (4). The cooling mechanism (6) includes several external flow channels (8) opened on the surface of the guide column (3) and an inner circular groove (7) opened at the end of the guide column (3). An inclined groove (13) is opened between the inner circular groove (7) and the external flow channels (8). The inclined groove (13) is used to connect the inner circular groove (7) and the external flow channels (8). An annular exhaust groove (15) connected to the external flow channels (8) is opened on the outer wall of the guide column (3). After the guide column (3) is inserted into the guide sleeve (4), the airflow flows through the inner circular groove (7) and the external flow channels (8) respectively and is discharged from the annular exhaust groove (15).

2. The liquid silicone mold according to claim 1, characterized in that, A flow guide (9) is installed in the inner circular groove (7). The flow guide (9) includes a flow guide column (10) disposed in the inner circular groove (7). Several flow guide plates (12) arranged in a circle are fixed on the circumferential surface of the flow guide column (10). The flow guide plates (12) are fixed to the inner wall of the inner circular groove (7). The inclined groove (13) is located between two adjacent flow guide plates (12).

3. The liquid silicone mold according to claim 2, characterized in that, The end of the guide column (10) is provided with a curved surface (11) for guiding the airflow.

4. The liquid silicone mold according to claim 1, characterized in that, The guide post (3) has a gathering groove (16) with an inner wall that is inclined at its end. The gathering groove (16) is used to guide the airflow into the inner circular groove (7).

5. The liquid silicone mold according to claim 1, characterized in that, The inner wall of the outer flow channel (8) is provided with a groove (14), which is connected to the annular exhaust groove (15).

6. The liquid silicone mold according to claim 5, characterized in that, A baffle plate (17) is fixed to the inner wall of the groove (14), and the baffle plate (17) is used to guide the airflow discharged from the inclined groove (13).

7. The liquid silicone mold according to claim 6, characterized in that, The side of the baffle (17) closest to the central axis of the guide post (3) is inclined.

8. The liquid silicone mold according to claim 1, characterized in that, An inclined flow guide surface is provided on the inner wall of the annular exhaust groove (15) away from the outer flow channel (8), and the flow guide surface is used to guide the flow of air.

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