A cooling mechanism for lampshade blow molding production

Abstract

This utility model provides a cooling mechanism for lampshade blow molding production, belonging to the field of lampshade blow molding cooling technology. It includes a blow molding machine and a cooling assembly, which is located inside the blow molding machine. The cooling assembly includes a left mold located inside the blow molding machine, and a right mold located on one side of the left mold. Cooling water channels are provided on the inner sides of both the left and right molds. A sealing assembly is located inside the left mold and is used to prevent coolant leakage from the cooling water channels. The sealing assembly includes a sealing plate connected to the left mold, and the left mold is engaged with the right mold via the sealing plate. By setting up the cooling assembly, cooling water channels with identical structures are set inside the left and right molds. The two cooling water channels cooperate to surround the mold cavity, allowing the coolant to cool the mold cavity more evenly, which helps to improve the uniformity of lampshade cooling and thus improve the production quality of the lampshade.

Description

Technical Field

[0001] This utility model relates to the field of lampshade blow molding cooling technology, and in particular to a cooling mechanism for lampshade blow molding production. Background Technology

[0002] The cooling mechanism of a lampshade blow molding machine is a device used to quickly cool and solidify the plastic preform that has expanded and conformed to the mold cavity during the blow molding process of plastic lampshades.

[0003] Existing cooling mechanisms for lampshade blow molding production deliver coolant to the interior of the mold's cooling water channels, allowing the coolant to circulate within the channels. This enables the heat from the molten plastic to be transferred through the metal mold to the flowing cooling water, rapidly cooling the lampshade and preventing it from deforming due to heat before demolding.

[0004] However, in practical applications, the cooling water channels in existing cooling mechanisms used for lampshade blow molding production are usually located inside the mold. However, these cooling water channels cannot completely cover the cavity, resulting in cooling dead zones on the mold, which is not conducive to improving the cooling uniformity of the lampshade.

[0005] Therefore, this application provides a cooling mechanism for lampshade blow molding production to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies and propose a cooling mechanism for lampshade blow molding production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cooling mechanism for lampshade blow molding production, comprising a blow molding machine, and further comprising:

[0008] A cooling assembly is located inside the blow molding machine. The cooling assembly includes a left mold located inside the blow molding machine, and a right mold located on one side of the left mold. Cooling water channels are provided on the inner sides of both the left mold and the right mold.

[0009] A sealing assembly is placed inside the left mold and is used to prevent coolant leakage inside the cooling water passage. The sealing assembly includes a sealing plate connected to the left mold. The left mold is snapped into the right mold through the sealing plate, and the two cooling water passages are connected through the sealing plate.

[0010] Furthermore, the cooling water channel is a hollow hemispherical structure.

[0011] The beneficial effect of adopting the above-mentioned further solution is that it enables the cooling water circuit to better fit the lamp cover cavity, which is conducive to improving the uniformity of lamp cover cooling.

[0012] Furthermore, the left mold is connected to a water inlet, and the right mold is connected to a water outlet, both of which are connected to the cooling water circuit.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the water inlet and the water outlet are welded to the left mold and the right mold respectively, and both are connected to the cooling water circuit. Then, the water inlet and the water outlet are connected to the external circulation system to form a circulating water circuit.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the coolant flows inside the cooling water circuit and gradually fills the cooling water circuit before being discharged from the outlet to the circulation system, which facilitates the circulation of the coolant.

[0015] Furthermore, both the left and right molds are provided with snap-fit ​​grooves, and rubber pads are provided on the inner side of the snap-fit ​​grooves.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the rubber pad is deformed by being squeezed from both sides, and the rubber pad fills the gap between the snap-fit ​​groove and the sealing plate, which helps to further improve the sealing effect.

[0017] Furthermore, both the snap-fit ​​groove and the side of the sealing plate near the rubber pad are provided with a friction coating.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: the friction coating can increase the friction between the rubber pad and the sealing plate, reduce the displacement of the rubber pad caused by vibration and pressure fluctuations, and reduce the risk of leakage.

[0019] Furthermore, a slide rail is connected to the right mold, and a limit block is connected to the left mold on the side near the slide rail. The left mold is slidably connected to the right mold through the slide rail and the limit block.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the limiting block and the slide rail work together to limit the movement path of the left mold and the right mold, prevent deviation, and ensure that the left mold and the right mold are accurately aligned.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. By setting up cooling components, the cooling water channels with the same structure are set up inside the left and right molds. The two cooling water channels work together to completely cover the cavity. Then, coolant is injected into the cooling water channels, which solves the problem of cooling dead corners in the mold. This allows the coolant to cool the cavity inside the mold more evenly, which helps to improve the uniformity of lampshade cooling and thus improve the production quality of the lampshade.

[0023] 2. By setting up a sealing component, a sealing plate is welded onto the left mold. The outer diameter of the sealing plate is smaller than that of the cooling water channel. When the left mold and the right mold are attached during the blow molding process, the sealing plate is precisely inserted into the right mold, realizing the connection of the cooling water channels on both sides and ensuring that the coolant flows smoothly in the entire circuit. At the same time, the outer side of the sealing plate fits tightly with the inner wall of the cooling water channel of the right mold, forming an effective sealing barrier, reducing the risk of coolant leakage, and improving the stability and reliability of the mold during operation. Attached Figure Description

[0024] Figure 1 This is a front view of a cooling mechanism for lampshade blow molding production according to the present invention;

[0025] Figure 2 This is a structural diagram of a cooling component in a cooling mechanism for lampshade blow molding production according to this utility model;

[0026] Figure 3 This is a cross-sectional view of a cooling component in a cooling mechanism for lampshade blow molding production according to the present invention.

[0027] Figure 4 This is a structural diagram of a sealing component in a cooling mechanism for blow molding production of lampshades, according to the present invention.

[0028] Figure 5 This is a structural diagram of the right mold in a cooling mechanism for blow molding production of lampshades according to this utility model.

[0029] Figure Labels

[0030] 1. Blow molding machine;

[0031] 2. Cooling components; 21. Left mold; 22. Right mold; 23. Cooling water channel; 24. Water inlet; 25. Water outlet; 26. Slide rail; 27. Limiting block;

[0032] 3. Sealing components; 31. Sealing plate; 32. Rubber gasket; 33. Snap-fit ​​groove; 34. Friction coating. Detailed Implementation

[0033] 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.

[0034] like Figures 1-5 As shown, this utility model provides a technical solution: a cooling mechanism for lampshade blow molding production, including a blow molding machine 1, and further comprising:

[0035] like Figures 1-3 As shown, the cooling assembly 2 is located inside the blow molding machine 1. The cooling assembly 2 includes a left mold 21 located inside the blow molding machine 1, and a right mold 22 located on one side of the left mold 21. Cooling water channels 23 are provided on the inner sides of both the left mold 21 and the right mold 22.

[0036] like Figures 1-4 As shown, the sealing assembly 3 is placed inside the left mold 21 to prevent coolant leakage from the cooling water passage 23. The sealing assembly 3 includes a sealing plate 31 connected to the left mold 21. The left mold 21 is engaged with the right mold 22 through the sealing plate 31. The two cooling water passages 23 are connected through the sealing plate 31. By opening identical cooling water passages 23 inside the left mold 21 and the right mold 22, when the drive device on the blow molding machine 1 pushes the left mold 21 and the right mold 22 to fit together, the two cooling water passages 23 cooperate to completely enclose the cavity. Then, coolant is injected into the interior of the cooling water passages 23, thus solving the problem of coolant leakage from the mold. The elimination of cooling dead zones allows the coolant to cool the mold cavity more evenly, improving the cooling uniformity of the lampshade and enhancing its production quality. Furthermore, by welding a sealing plate 31 to the left mold 21, with the outer diameter of the sealing plate 31 being smaller than the diameter of the cooling water channel 23, the sealing plate 31 is inserted into the right mold 22 after the left mold 21 and right mold 22 are fitted together, connecting the two cooling water channels 23 and facilitating the mutual flow of coolant. Simultaneously, the outer side of the sealing plate 31 is tightly fitted to the inner wall of the cooling water channel 23 on the right mold 22, preventing coolant leakage and improving the stability of the left mold 21 and right mold 22 during use.

[0037] Furthermore, such as Figure 3 As shown, the cooling water channel 23 is a hollow hemispherical structure. By setting the cooling water channel 23 into a hemispherical shape that matches the lamp cover, the cooling water channel 23 can better fit the lamp cover cavity, which is beneficial to improving the uniformity of lamp cover cooling.

[0038] Furthermore, such as Figure 3 As shown, the left mold 21 is connected to an inlet 24, and the right mold 22 is connected to an outlet 25. Both the inlet 24 and the outlet 25 are connected to the cooling water passage 23. By welding the inlet 24 and the outlet 25 to the left mold 21 and the right mold 22 respectively, and connecting both to the cooling water passage 23, and then connecting the inlet 24 and the outlet 25 to the external circulation system, a circulating water passage is formed. The coolant is injected into the cooling water passage 23 through the circulation system along the inlet 24, so that the coolant flows inside the cooling water passage 23 and gradually fills the cooling water passage 23, and then is discharged from the outlet 25 to the circulation system, which facilitates the circulation of the coolant.

[0039] Furthermore, such as Figures 4-5 As shown, both the left mold 21 and the right mold 22 are provided with snap-fit ​​grooves 33. A rubber pad 32 is provided on the inner side of the snap-fit ​​groove 33. By opening the snap-fit ​​groove 33, the rubber pad 32 is inserted into the snap-fit ​​groove 33, and the length of the rubber pad 32 is greater than the length of the snap-fit ​​groove 33. When the left mold 21 and the right mold 22 are attached, the rubber pad 32 is squeezed from both sides and deformed. The rubber pad 32 fills the gap between the snap-fit ​​groove 33 and the sealing plate 31, which helps to further improve the sealing effect.

[0040] Furthermore, such as Figure 4 As shown, friction coating 34 is provided on both the snap-fit ​​groove 33 and the side of the sealing plate 31 near the rubber pad 32. By spraying the friction coating 34 into the interior of the sealing plate 31 and the snap-fit ​​groove 33, and then adhering the rubber pad 32 to the interior of the snap-fit ​​groove 33 on the right mold 22, when the rubber pad 32 fills the gap between the sealing plate 31 and the snap-fit ​​groove 33, the friction coating 34 can increase the friction between the rubber pad 32 and the sealing plate 31, reduce the displacement of the rubber pad 32 caused by vibration and pressure fluctuation, and reduce the risk of leakage.

[0041] Furthermore, such as Figure 2 As shown, a slide rail 26 is connected to the right mold 22, and a limiting block 27 is connected to the left mold 21 near the slide rail 26. The left mold 21 is slidably connected to the right mold 22 through the slide rail 26 and the limiting block 27. By welding the slide rail 26 to the right mold 22 and the limiting block 27 to the left mold 21, the slide rail 26 is inserted inside the limiting block 27. When the left mold 21 and the right mold 22 move, the limiting block 27 and the slide rail 26 cooperate to limit the movement path of the left mold 21 and the right mold 22, prevent deviation, and ensure that the left mold 21 and the right mold 22 are accurately aligned.

[0042] Working principle: such as Figures 1-5As shown, the molten plastic is discharged into the interior of the right mold 22. The drive device on the blow molding machine 1 is started, pushing the left mold 21 closer to the right mold 22. The left mold 21 slides along the slide rail 26 via the limit block 27, so that the left mold 21 and the right mold 22 are in contact. At this time, the cooling water channels 23 on the left mold 21 and the right mold 22 are aligned. The sealing plate 31 is inserted into the cooling water channel 23 of the right mold 22, so that the two cooling water channels 23 are connected. At the same time, the rubber gasket 32 ​​is sealed inside the snap-fit ​​groove 33. The friction coating 34 increases the friction between the rubber gasket 32 ​​and the sealing plate. The friction force of 31 prevents coolant leakage and improves the stability of the left mold 21 and right mold 22 during use. After blow molding is completed, the circulation system on the blow molding machine 1 is started, and coolant is injected into the interior of the cooling water channel 23 through the water inlet 24. Due to the hemispherical structure of the cooling water channel 23, the cooling water channel 23 can better fit the lampshade cavity. The two cooling water channels 23 work together to completely wrap the cavity, so that the coolant can cool the cavity inside the mold more evenly, which is conducive to improving the cooling uniformity of the lampshade and improving the production quality of the lampshade.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cooling mechanism for blow moulding production of lampshades, comprising a blow moulding machine (1), characterised in that, Also includes: Cooling assembly (2), the cooling assembly (2) is placed inside the blow molding machine (1), the cooling assembly (2) includes a left mold (21) disposed inside the blow molding machine (1), a right mold (22) is disposed on one side of the left mold (21), and cooling water channels (23) are opened on the inner sides of the left mold (21) and the right mold (22); A sealing assembly (3) is placed inside the left mold (21) and is used to prevent the coolant from leaking from the cooling water passage (23). The sealing assembly (3) includes a sealing plate (31) connected to the left mold (21). The left mold (21) is engaged with the right mold (22) through the sealing plate (31). The two cooling water passages (23) are connected through the sealing plate (31).

2. The cooling mechanism for blow molding production of lampshade according to claim 1, characterized in that, The cooling water channel (23) is a hollow hemispherical structure.

3. The cooling mechanism for blow molding production of lampshade according to claim 1, characterized in that, The left mold (21) is connected to a water inlet (24), and the right mold (22) is connected to a water outlet (25). Both the water inlet (24) and the water outlet (25) are connected to the cooling water channel (23).

4. A cooling mechanism for lampshade blow molding production according to claim 1, characterized in that, Both the left mold (21) and the right mold (22) are provided with snap-fit ​​grooves (33), and a rubber pad (32) is provided on the inner side of the snap-fit ​​grooves (33).

5. A cooling mechanism for blow molding production of lampshades according to claim 4, characterized in that, The snap-fit ​​groove (33) and the sealing plate (31) are both provided with a friction coating (34) on the side near the rubber pad (32).

6. The cooling mechanism for blow molding production of lampshade according to claim 1, characterized in that, The right mold (22) is connected to a slide rail (26), and the left mold (21) is connected to a limit block (27) on the side near the slide rail (26). The left mold (21) is slidably connected to the right mold (22) through the slide rail (26) and the limit block (27).

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