A bottle bottom mold facilitating exhaust

Abstract

The application provides a bottle bottom mold facilitating exhaust, and relates to a bottle bottom mold, which comprises a bottom mold, an upper surface of the bottom mold is provided with a forming cavity, a bottom wall of the forming cavity is provided with a groove, an inner wall of the groove is provided with a guide groove, the groove is slidably connected with a closing cylinder, a bottom wall of the groove is provided with a first exhaust hole, a lower surface of the first exhaust hole extends to a lower surface of the bottom mold, an upper surface of the closing cylinder is provided with a through groove extending to a lower surface thereof, a diameter of the through groove is consistent with that of an upper end of the first exhaust hole, and a bottom wall of the groove is fixedly connected with a connecting cylinder. The application can realize the switching of exhaust and blowing through the vertical movement of the closing cylinder and the cooperation of a blowing and exhaust switching assembly, the blowing assembly is arranged on the lower side, the bottom of a bottle body can be effectively cooled, and the bottom wall of the forming cavity is not additionally provided with an opening in normal use, which has little influence on product quality.

Description

Technical Field

[0001] This utility model relates to bottle bottom molds, and more specifically, to a bottle bottom mold that facilitates venting. Background Technology

[0002] During the bottle production process, the molten material is first introduced into the preliminary molding mold for preliminary molding, and then transferred to the combination of the bottle body molding mold and the bottle bottom molding mold for air blowing molding of the bottle body and bottle bottom.

[0003] During the molding process, the material needs to adhere closely to the inner wall of the mold. If there is a large amount of air inside the mold, it will hinder the material from adhering to the inner wall of the mold, affecting the molding quality. Therefore, venting holes are usually opened on the mold to expel the air. At the same time, after blow molding, the bottle needs to be cooled quickly to avoid deformation after demolding. After water cooling, air cooling is usually required for secondary cooling. During the cooling process, the bottle is usually cooled by symmetrical air channels surrounding it. Although this cooling method can remove the residual heat of the bottle, the surrounding air cooling is difficult to cool the bottom of the bottle sufficiently. Uneven cooling can easily cause small wrinkles to appear at the bottom of the bottle, affecting product quality. In view of this, we propose a bottle bottom mold that facilitates venting. Utility Model Content

[0004] The purpose of this invention is to solve the problem that current surround air cooling systems cannot adequately cool the bottom of the bottle, which can easily lead to micro-wrinkles at the bottom of the bottle due to uneven cooling, thus affecting product quality.

[0005] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a bottle bottom mold for easy venting, comprising a bottom mold, a forming cavity formed on the upper surface of the bottom mold, a groove formed on the bottom wall of the forming cavity, a guide groove formed on the inner wall of the groove, a sealing cylinder slidably connected to the inner wall of the groove, a first vent hole formed on the bottom wall of the groove, the lower surface of the first vent hole extending to the lower surface of the bottom mold, a through groove formed on the upper surface of the sealing cylinder extending to its lower surface, the diameter of the through groove being the same as the upper diameter of the first vent hole, a connecting cylinder fixedly connected to the bottom wall of the groove, the connecting cylinder communicating with the through groove and the first vent hole, and a blow-and-vent switch assembly provided on the bottom mold.

[0006] As a preferred technical solution of this application, the blowing and exhaust switching assembly includes a centrifugal fan, which is fixedly connected to the lower surface of the bottom mold. A ventilation pipe is provided on the centrifugal fan, and the end of the ventilation pipe extends to the outside of the bottom mold. The first exhaust hole is tapered with a smaller top and a larger bottom.

[0007] As a preferred technical solution of this application, the bottom wall of the groove is provided with an air blowing hole extending to the lower surface of the bottom mold, and a spring is fixedly connected to the bottom wall of the groove.

[0008] As a preferred technical solution of this application, the upper end of the spring is fixedly connected to the top wall of the closed cylinder, and the top wall of the closed cylinder is configured as an inverted cone shape.

[0009] As a preferred technical solution of this application, the inner wall of the sealed cylinder is provided with an air outlet extending out of its outer surface, and a guide ring is fixedly connected to the lower surface of the sealed cylinder.

[0010] As a preferred technical solution of this application, the guide ring is slidably connected inside the guide groove, and the inner wall of the molding cavity is provided with a second vent hole.

[0011] As a preferred technical solution of this application, the second vent hole is also set to be conical, and an installation ring is fixedly connected to the lower surface of the bottom mold.

[0012] As a preferred technical solution of this application, the upper surface of the mounting ring is provided with a fixing hole extending to its lower surface, and a fixing bolt is provided in the fixing hole.

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

[0014] In the scheme of this application:

[0015] 1. It can switch between exhaust and blowing by vertical movement of the closed cylinder and in conjunction with the blow-exhaust switching component. The blowing component is located on the lower side, which can effectively cool the bottom of the bottle. At the same time, there are no additional openings on the bottom wall of the molding cavity during normal use, which has minimal impact on product quality.

[0016] 2. The conical shape of the first and second exhaust holes can be used to create local airflow acceleration during exhaust, quickly expelling the internal air. At the same time, the diameter of the side away from the molding cavity is larger, which facilitates processing. Attached Figure Description

[0017] Figure 1 A schematic diagram of the bottle bottom mold for facilitating venting provided in this application;

[0018] Figure 2 A schematic diagram of the installation of the centrifugal fan in the bottle bottom mold for easy venting provided in this application;

[0019] Figure 3 A schematic diagram of the closed cylinder in the bottle bottom mold for easy venting provided in this application;

[0020] Figure 4 The bottle bottom mold provided in this application facilitates venting. Figure 2Enlarged view of point A in the middle.

[0021] The image indicates:

[0022] 1. Bottom mold; 2. Molding cavity; 3. Groove; 4. Guide groove; 5. Enclosed cylinder; 6. First vent hole; 7. Through groove; 8. Connecting cylinder; 9. Centrifugal fan; 10. Ventilation pipe; 11. Air blowing hole; 12. Spring; 13. Air outlet; 14. Guide ring; 15. Second vent hole; 16. Mounting ring; 17. Fixing hole; 18. Fixing bolt. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A bottle bottom mold for easy venting includes a bottom mold 1, a forming cavity 2 on the upper surface of the bottom mold 1, a groove 3 on the bottom wall of the forming cavity 2, a guide groove 4 on the inner wall of the groove 3, a sealing cylinder 5 slidably connected to the inner wall of the groove 3, a first vent 6 on the bottom wall of the groove 3, the lower surface of the first vent 6 extending to the lower surface of the bottom mold 1, and the air at the bottom of the bottle being vented through the first vent 6. A through groove 7 extending from the upper surface of the sealing cylinder 5 to its lower surface is provided, the diameter of the through groove 7 being the same as that of the first vent 6. The upper diameter of the first exhaust hole 6 is consistent. The bottom wall of the groove 3 is fixedly connected to the connecting cylinder 8. The connecting cylinder 8 is connected to the through groove 7 and the first exhaust hole 6. The upper air duct and the lower air duct are connected together through the connecting cylinder 8. The bottom mold 1 is equipped with a blow-air switching component, which can switch between exhaust and blow-air by the vertical movement of the closed cylinder 5 and in conjunction with the blow-air switching component. The blow-air component is located on the lower side, which can effectively cool the bottom of the bottle. At the same time, there are no additional openings on the bottom wall of the molding cavity 2 during normal use, which has minimal impact on product quality.

[0029] Example 2

[0030] The bottle bottom mold for easy venting provided in Example 1 is further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the blow-out / exhaust switching assembly includes a centrifugal fan 9, which is fixedly connected to the lower surface of the bottom mold 1. A ventilation pipe 10 is installed on the centrifugal fan 9, with its end extending to the outside of the bottom mold 1. The first exhaust port 6 is tapered, wider at the bottom than the top, which accelerates air exhaust. An air-blowing hole 11 extending to the lower surface of the bottom mold 1 is opened on the bottom wall of the groove 3. A spring 12 is fixedly connected to the bottom wall of the groove 3, ensuring the integrity of the air duct during normal operation. The upper end of the spring 12 is fixedly connected to the top wall of the closed cylinder 5, which is inverted tapered. This tapered shape guides air to the side during blow-out cooling. The inner wall of the closed cylinder 5 has an air outlet 13 extending out of its outer surface. A guide ring 14 is fixedly connected to the lower surface of the closed cylinder 5. The guide ring 14 is slidably connected inside the guide groove 4. The inner wall of the molding cavity 2 has a second exhaust hole 15, which is also cone-shaped. An installation ring 16 is fixedly connected to the lower surface of the bottom mold 1. A fixing hole 17 extending to its lower surface is opened on the upper surface of the installation ring 16. A fixing bolt 18 is provided on the fixing hole 17. The cone-shaped arrangement of the first exhaust hole 6 and the second exhaust hole 15 can be used to form a local airflow acceleration during exhaust, quickly expelling the internal air. At the same time, the diameter of the side away from the molding cavity 2 is larger, which is convenient for processing.

[0031] The bottle bottom mold for easy venting provided by this utility model is used as follows:

[0032] During normal venting, the air inside the molding cavity 2 is discharged through the first vent 6 and the second vent 15. Since both the first vent 6 and the second vent 15 are conical, they create localized airflow acceleration, rapidly expelling the internal air. The larger diameter on the side furthest from the molding cavity 2 facilitates processing. When the gas is discharged through the first vent 6, it first enters the connecting cylinder 8 through the through-slot 7, then enters the first vent 6 through the connecting cylinder 8, and finally is discharged through the centrifugal fan 9. During secondary cooling with cold air after molding, the centrifugal fan 9 draws in external cold air, and some of this air enters the first vent. 6. Another part of the air will enter the interior of the groove 3 through the air blowing hole 11. Since the interior of the groove 3 is closed at this time, this air will push the sealing cylinder 5 to move upward. After the sealing cylinder 5 moves upward, the connection between the connecting cylinder 8 and the through groove 7 is disconnected. At this time, most of the air in the first exhaust hole 6 will also enter the interior of the groove 3. When the sealing cylinder 5 moves upward, it will not only stretch the spring 12 but also drive the guide ring 14 to move. When the guide ring 14 moves to the top, it stops. At this time, the air inside the groove 3 can be discharged through the air outlet 13 opened on the side of the sealing cylinder 5, and the cold air will move upward through the guidance of the inner wall of the forming cavity 2 to cool the bottom of the bottle.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A bottle bottom mold for easy venting, characterized in that, The system includes a bottom mold (1), a molding cavity (2) is provided on the upper surface of the bottom mold (1), a groove (3) is provided on the bottom wall of the molding cavity (2), a guide groove (4) is provided on the inner wall of the groove (3), a closed cylinder (5) is slidably connected to the inner wall of the groove (3), a first exhaust hole (6) is provided on the bottom wall of the groove (3), the lower surface of the first exhaust hole (6) extends to the lower surface of the bottom mold (1), a through groove (7) is provided on the upper surface of the closed cylinder (5) extending to its lower surface, the diameter of the through groove (7) is the same as the upper diameter of the first exhaust hole (6), a connecting cylinder (8) is fixedly connected to the bottom wall of the groove (3), the connecting cylinder (8) communicates with the through groove (7) and the first exhaust hole (6), and a blow-and-exhaust switching assembly is provided on the bottom mold (1).

2. The bottle bottom mold for facilitating venting according to claim 1, characterized in that, The blow-out switching assembly includes a centrifugal fan (9), which is fixedly connected to the lower surface of the bottom mold (1). A ventilation pipe (10) is provided on the centrifugal fan (9), and the end of the ventilation pipe (10) extends to the outside of the bottom mold (1). The first exhaust hole (6) is a cone shape with a smaller top and a larger bottom.

3. The bottle bottom mold for facilitating venting according to claim 2, characterized in that, The bottom wall of the groove (3) is provided with an air blowing hole (11) extending to the lower surface of the bottom mold (1), and a spring (12) is fixedly connected to the bottom wall of the groove (3).

4. A bottle bottom mold for facilitating venting according to claim 3, characterized in that, The upper end of the spring (12) is fixedly connected to the top wall of the closed cylinder (5), and the top wall of the closed cylinder (5) is set as an inverted cone shape.

5. A bottle bottom mold for facilitating venting according to claim 4, characterized in that, The inner wall of the sealed cylinder (5) is provided with an air outlet (13) extending out of its outer surface, and a guide ring (14) is fixedly connected to the lower surface of the sealed cylinder (5).

6. A bottle bottom mold for facilitating venting according to claim 5, characterized in that, The guide ring (14) is slidably connected inside the guide groove (4), and the inner wall of the molding cavity (2) is provided with a second vent hole (15).

7. A bottle bottom mold for facilitating venting according to claim 6, characterized in that, The second vent (15) is also cone-shaped, and the lower surface of the bottom mold (1) is fixedly connected with an installation ring (16).

8. A bottle bottom mold for facilitating venting according to claim 7, characterized in that, The upper surface of the mounting ring (16) is provided with a fixing hole (17) extending to its lower surface, and a fixing bolt (18) is provided on the fixing hole (17).

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