Blowing device for accelerating mold separation

Abstract

The utility model relates to the technical field of lens production equipment, in particular to an air blowing device for accelerating mold separation, which is characterized in that the air blowing device is arranged on one side of a mold, a nitrogen connector on the air blowing device is connected with a nitrogen source to obtain nitrogen, and the nitrogen is contacted with the outer side wall of the mold through an air outlet channel via an air outlet hole assembly. According to the principle that the expansion coefficients of different materials are different, the shrinkage speeds of the upper mold, the lower mold and the lens are different, so that the adhesive force is reduced, the formed lens between the upper mold and the lower mold can be taken out, and the problem that in the compression molding process, the temperature of the lens is too high is effectively solved. The problems that lens forming needs to be carried out at a relatively high temperature, intermolecular force is enhanced at the high temperature, contact surfaces between the lens and an upper mold and a lower mold generate adhesive force, due to the adhesive force, after lens forming is completed, the lens and the molds are difficult to separate, and in the lens taking-out process, the molds are prone to being damaged or the surface quality of the lens is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lens production equipment, in particular to an air blowing device for accelerating mold separation. Background Art

[0002] In the process of manufacturing optical lenses, the compression molding process is an indispensable key step. This process softens and deforms the lens material in the mold by precisely controlling the high temperature and pressure environment, thereby accurately replicating the shape of the mold and ensuring that the lens has the required optical properties. The compression molding process can not only efficiently produce a large number of lenses with stable quality, but also meet the needs of complex optical designs. It is an important technical means to manufacture high-quality optical lenses.

[0003] However, in the compression molding process, lens molding needs to be carried out at a relatively high temperature. At high temperature, the intermolecular force is enhanced, and adhesion is generated on the contact surface between the lens and the upper and lower molds. This adhesion makes it difficult to separate the lens from the mold after the lens molding is completed. During the lens removal process, it is easy to cause mold damage or lens surface quality degradation, which not only affects the normal production progress, but also increases material costs, causing unnecessary economic losses to users.

[0004] The utility model is proposed in view of the deficiencies in the prior art. Utility Model Content

[0005] In view of the above-mentioned existing compression molding process, lens molding needs to be carried out at a relatively high temperature. At high temperature, the intermolecular force is enhanced, and the contact surface between the lens and the upper and lower molds produces adhesion. This adhesion makes it difficult to separate the lens from the mold after the lens molding is completed. During the lens removal process, it is easy to cause the mold to be damaged or the surface quality of the lens to decrease. The technical solution adopted by the utility model to solve the technical problem is:

[0006] A blowing device for accelerating mold separation comprises a mold for lens molding and a blowing device, wherein the mold comprises an upper mold and a lower mold detachably connected to the upper mold, and the blowing device comprises a blowing shell, wherein the blowing shell is provided with a nitrogen connector connected to a nitrogen source to provide nitrogen, and a space formed by one end of the nitrogen connector and an inner cavity of the blowing shell is provided with an air outlet channel, and a side of the blowing shell close to the mold is also provided with an air outlet assembly communicated with the air outlet channel, so that nitrogen can contact the outer wall of the upper mold and the outer wall of the lower mold respectively through the air outlet assembly.

[0007] Furthermore, the air outlet assembly includes a horizontal air outlet assembly arranged along the horizontal direction, and the length of the horizontal air outlet assembly along the horizontal direction is greater than or equal to the length of the upper mold along the horizontal direction and the length of the lower mold along the horizontal direction.

[0008] Furthermore, the horizontal air outlet assembly is composed of a plurality of horizontal air outlets spaced apart in the horizontal direction.

[0009] Further, the air outlet channel includes a first air outlet channel component communicated with the nitrogen connector, and a second air outlet channel component connected to the first air outlet channel component and communicated with the air outlet hole component.

[0010] Furthermore, a diverter pipe assembly communicating with the air outlet channel is provided between the air outlet channel and the horizontal air outlet hole assembly, and the diverter pipe assembly includes a plurality of diverter holes spaced apart in the horizontal direction and corresponding to each of the horizontal air outlet holes.

[0011] Furthermore, the cross section formed by the connection between the first air outlet channel component and the second air outlet channel component is "L"-shaped.

[0012] Furthermore, a guide rail assembly for driving the blow housing to approach or move away from the mold is provided on a side of the blow housing away from the mold.

[0013] Furthermore, the guide rail assembly includes a first guide rail assembly and a second guide rail assembly symmetrically arranged with respect to the first guide rail assembly.

[0014] Furthermore, the guide rail assembly and the blowing shell are integrally formed.

[0015] Furthermore, the blowing device comprises a first blowing device and a second blowing device symmetrically arranged on both sides of the mold.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The utility model discloses an air blowing device for accelerating mold separation. The air blowing device is arranged on one side of the mold. The nitrogen connector on the air blowing device is connected to an external nitrogen source to obtain nitrogen. The nitrogen contacts the outer side wall of the upper mold and the outer side wall of the lower mold through the air outlet channel and the air outlet hole assembly, so that the temperature of the upper mold, the lower mold and the lens drops rapidly. The upper mold, the lower mold and the lens have different shrinkage speeds according to the principle that the expansion coefficients of different materials are different, thereby reducing adhesion and facilitating the smooth removal of the molded lens between the upper mold and the lower mold. The utility model effectively solves the problem that in the existing compression molding process, the lens molding needs to be carried out at a relatively high temperature. At high temperature, the intermolecular force is enhanced, and the contact surface between the lens and the upper and lower molds generates adhesion. This adhesion makes it difficult to separate the lens from the mold after the lens molding is completed. During the lens removal process, the mold is easily damaged or the surface quality of the lens is reduced.

[0018] 2. Nitrogen is used to cool the upper mold, lower mold and lens respectively. As an inert gas, nitrogen will not react chemically with the mold and lens materials, effectively ensuring the quality of the mold and lens.

[0019] The utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the structural schematic diagrams of a blowing device for accelerating mold separation of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the blowing device of the utility model;

[0022] Figure 3 This is the second structural schematic diagram of an air blowing device for accelerating mold separation of the utility model;

[0023] Figure 4 This is the third structural schematic diagram of a blowing device for accelerating mold separation of the utility model;

[0024] Figure 5 for Figure 4 Schematic cross-sectional view along line AA;

[0025] Figure 6 for Figure 5 Schematic enlargement of the labeled section B. DETAILED DESCRIPTION

[0026] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 6 A blowing device for accelerating mold separation is shown, comprising a mold 1 for lens molding and a blowing device 2, wherein the mold 1 comprises an upper mold 11 and a lower mold 12 detachably connected to the upper mold 11, and the blowing device 2 comprises a blowing shell 21, wherein the blowing shell 21 is provided with a nitrogen connector 22 connected to a nitrogen source to provide nitrogen, and a space enclosed by one end of the nitrogen connector 22 and the inner cavity of the blowing shell 21 is provided with an outlet channel 23, and a side of the blowing shell 21 close to the mold 1 is further provided with an outlet hole assembly 3 communicated with the outlet channel 23, so that nitrogen can contact the outer wall of the upper mold 11 and the outer wall of the lower mold 12 respectively through the outlet hole assembly 3;

[0028] The utility model discloses an air blowing device for accelerating mold separation. The air blowing device is arranged on one side of the mold. The nitrogen connector on the air blowing device is connected to an external nitrogen source to obtain nitrogen. The nitrogen contacts the outer side wall of the upper mold and the outer side wall of the lower mold through an air outlet channel and an air outlet hole assembly, so that the temperature of the upper mold, the lower mold and the lens drops rapidly. The utility model utilizes the principle that the expansion coefficients of different materials are different. The shrinkage speeds of the upper mold, the lower mold and the lens are different, thereby reducing adhesion and facilitating smooth removal of the molded lens between the upper mold and the lower mold. The utility model effectively solves the problem that in the existing compression molding process, the lens molding needs to be carried out at a relatively high temperature. At high temperature, the intermolecular force is enhanced, and the contact surface between the lens and the upper and lower molds generates adhesion. This adhesion makes it difficult to separate the lens from the mold after the lens molding is completed. During the lens removal process, the mold is easily damaged or the surface quality of the lens is reduced.

[0029] Furthermore, nitrogen is used to cool the upper mold 11, the lower mold 12 and the lens. As an inert gas, nitrogen will not chemically react with the mold 1 and the lens material, thereby effectively ensuring the quality of the mold 1 and the lens.

[0030] Furthermore, the upper mold 11 and the lower mold 12 are both made of alloy material. Since the alloy material contains a high amount of metal elements, it has high hardness and wear resistance, so that the upper mold 11 and the lower mold 12 can withstand high pressure and friction, thereby effectively extending the service life of the mold 1; secondly, the alloy material not only has high strength, but also has good toughness. The high strength and good toughness enable the mold 1 to withstand more stress and deformation.

[0031] Furthermore, the upper mold 11 and the lower mold 12 are both integrally formed. Since the upper mold 11 and the lower mold 12 are both integrally formed, they are both processed from a single piece of material without any joints, thereby having high sealing performance, which is beneficial to reducing the risk of leakage and ensuring that the blowing device 2 can effectively spray nitrogen onto the surface of the mold 1 to improve the cooling effect; secondly, the integrally formed upper mold 11 and lower mold 12 have a tighter structure, which can improve the structural stability of the entire mold and reduce deformation or failure caused by gaps between the components of the mold 1; finally, the integrally formed mold 1 has strong wear resistance and is not easy to damage, so it has a long service life, which is beneficial to reducing the frequency and cost of replacing the mold 1, effectively reducing downtime and maintenance costs in production, and improving the continuity and stability of production.

[0032] Specifically, the nitrogen connector 22 is connected to an external nitrogen source to obtain nitrogen, and the nitrogen connector 22 is communicated with the air outlet channel 23. A side of the blowing shell 21 close to the mold 1 is provided with an air outlet assembly 3 which is communicated with the air outlet channel 23 and opens toward the outer wall of the mold 1. The nitrogen is transmitted to the air outlet assembly 3 through the air outlet channel 23, and finally contacts the outer wall of the upper mold 11 and the outer wall of the lower mold 12 respectively through the air outlet assembly 3, so that the nitrogen is fully in contact with the side wall of the mold 1, the top of the mold 1 and the bottom of the mold 1, thereby quickly reducing the overall temperature of the mold 1.

[0033] like Figures 1 to 6 The air outlet assembly 3 shown includes a horizontal air outlet assembly 31 arranged in the horizontal direction, and the length of the horizontal air outlet assembly 31 in the horizontal direction is greater than or equal to the length of the upper mold 11 in the horizontal direction and the length of the lower mold 12 in the horizontal direction;

[0034] Furthermore, since the horizontal length of the horizontal air outlet assembly 31 is greater than or equal to the horizontal length of the upper mold 11 and the horizontal length of the lower mold 12, the nitrogen can more evenly cover the outer wall of the entire mold 1, effectively avoiding local overheating or insufficient cooling, which helps to improve the overall cooling efficiency of the mold 1.

[0035] Furthermore, the uniform cooling effect helps to quickly reduce the temperature of the mold 1, thereby reducing the adhesion between the mold 1 and the lens.

[0036] Optionally, in some embodiments, the air outlet assembly 3 further includes a vertical air outlet assembly arranged along the vertical direction, and the height of the vertical air outlet assembly along the vertical direction is greater than or equal to the height of the mold 1 along the vertical direction.

[0037] like Figures 1 to 6 The horizontal air outlet assembly 31 shown is composed of a plurality of horizontal air outlets spaced apart in the horizontal direction;

[0038] Furthermore, by forming a horizontal air outlet assembly 31 with a plurality of horizontal air outlets spaced apart in the horizontal direction, it can be ensured that the coverage area of ​​nitrogen when blown out on the surface of the mold 1 is more uniform, thereby improving the uniformity of cooling and reducing the risk of deformation or cracks caused by uneven temperature.

[0039] Furthermore, the provision of multiple horizontal air outlets can improve the stability and reliability of the device. When one of the horizontal air outlets fails, the other horizontal air outlets can still work normally.

[0040] Furthermore, by setting the number, size and spacing of the horizontal air outlet holes, the flow rate and speed of the cooling gas can be accurately controlled, thereby controlling the cooling speed of the mold 1, effectively ensuring that the lens will not generate internal stress or cracks due to an excessively fast cooling speed during the molding process.

[0041] like Figures 1 to 6 The air outlet channel 23 shown includes a first air outlet channel component 231 communicated with the nitrogen connector, and a second air outlet channel component 232 connected to the first air outlet channel component 231 and communicated with the air outlet hole component 3;

[0042] Furthermore, by setting the first air outlet channel assembly 231 and the second air outlet channel assembly 232 to be connected and matched, it can effectively ensure that the resistance and pressure loss are reduced during the transmission of nitrogen from the nitrogen connector 22 to the air outlet hole assembly 3, which is beneficial to improving the efficiency of gas transmission and ensuring the normal operation of the blowing device.

[0043] Specifically, the first air outlet channel component 231 is arranged in the horizontal direction, the second air outlet channel component 232 is arranged in the vertical direction, the air outlet hole component 3 is arranged in the horizontal direction and is located at one end of the second air outlet channel component 232 away from the first air outlet channel component 231, and the air outlet hole component 3 is located below the air outlet channel 23, which helps to discharge the cooling gas so that the gas can be discharged more smoothly under the assistance of gravity, which is beneficial to improving the exhaust efficiency.

[0044] like Figures 1 to 6 A manifold assembly 4 communicating with the air outlet channel 23 is provided between the air outlet channel 23 and the horizontal air outlet hole assembly 31. The manifold assembly 4 includes a plurality of manifold holes 41 spaced apart in the horizontal direction and corresponding to each of the horizontal air outlet holes.

[0045] Furthermore, the diverter pipe assembly 4 is provided with a plurality of diverter holes 41 which are arranged at intervals in the horizontal direction and correspond to each horizontal air outlet, so that the cooling gas can be evenly distributed to each horizontal air outlet, effectively ensuring that each horizontal air outlet can obtain relatively stable cooling gas and avoiding uneven flow distribution.

[0046] Furthermore, the arrangement of the diverter pipe assembly 4 makes the entire air outlet system more compact and the layout more reasonable. The diverter holes 41 arranged at intervals in the horizontal direction correspond to the horizontal air outlet hole assembly 31, which not only simplifies the connection structure but also reduces the complexity of the pipeline.

[0047] like Figures 1 to 6 The cross section formed by the connection between the first air outlet channel component 231 and the second air outlet channel component 232 is "L" shaped;

[0048] Furthermore, the first air outlet channel assembly 231 is vertically connected to the second air outlet channel assembly 232, and the cross section is "L"-shaped. The "L"-shaped cross section setting can effectively utilize the internal space of the blowing shell 21 to make the overall structure of the air outlet channel more compact.

[0049] Furthermore, the "L"-shaped cross-section helps to stabilize the cooling airflow. When nitrogen enters the first air outlet channel assembly 231 from the nitrogen connector 22, due to the "L"-shaped setting, the airflow will form a certain buffer at the corner, thereby reducing the fluctuation and impact of the airflow.

[0050] Furthermore, the "L"-shaped cross-section can effectively prevent gas backflow. Because there are corners in two directions, the gas needs to overcome additional resistance when backflowing, which greatly reduces the possibility of gas backflow.

[0051] like Figures 1 to 6 The side of the blow housing 21 away from the mold 1 is provided with a guide rail assembly 24 for driving the blow housing 21 to approach or move away from the mold 1;

[0052] Furthermore, by setting the guide rail assembly 24, the position of the blow housing 21 relative to the mold 1 can be accurately controlled so that the blow housing 21 can be close to or away from the mold 1, thereby accurately controlling the blowing position and ensuring effective cooling of the mold 1 surface.

[0053] Furthermore, the guide rail assembly 24 provides stable support and guidance so that the blowing housing 21 can remain stable and not shake during movement, which helps to improve the stability and reliability of the entire device.

[0054] Optionally, the guide rail assembly 24 can be used in conjunction with a driving device so that the blow housing 21 can quickly and efficiently move closer to or farther from the mold 1 . The driving device can be a cylinder or a motor.

[0055] like Figures 1 to 6 The guide rail assembly 24 shown includes a first guide rail assembly 241 and a second guide rail assembly 242 symmetrically arranged with respect to the first guide rail assembly 241;

[0056] Furthermore, the double guide rails are provided to make the blowing housing 21 more stable during movement. The first guide rail assembly 241 and the second guide rail assembly 242 jointly provide support and guidance to ensure that the blowing housing 21 moves along a predetermined trajectory.

[0057] Furthermore, the symmetrically arranged first guide rail assembly 241 and second guide rail assembly 242 can ensure that the blowing housing 21 is subjected to balanced force during movement, which is beneficial to reducing friction, wear and vibration caused by uneven force, thereby improving the service life and stability of the guide rail assembly 24.

[0058] Furthermore, the dual guide rails enable the guide rail assembly 24 to withstand a greater load, and the first guide rail assembly 241 and the second guide rail assembly 242 jointly share the weight of the blowing housing 21 and possible external impact forces, which helps to improve the load-bearing capacity and safety of the entire system.

[0059] like Figures 1 to 6 The guide rail assembly 24 shown is integrally formed with the blowing housing 21;

[0060] Furthermore, the one-piece molding arrangement ensures a more secure connection between the guide rail assembly 24 and the blowing housing 21 without additional connectors or seams, which not only enhances the strength and rigidity of the entire structure but also reduces the risk of failure due to loose or damaged connectors.

[0061] Furthermore, the one-piece molding arrangement simplifies the manufacturing process, reduces the number of assembly steps and parts, reduces production costs and manufacturing cycles, and improves production efficiency.

[0062] like Figures 1 to 6 The blowing device 2 shown comprises a first blowing device 51 and a second blowing device 52 symmetrically arranged on both sides of the mold 1;

[0063] Furthermore, the symmetrically arranged first blowing device 51 and second blowing device 52 can ensure that the blowing operation is evenly distributed on both sides of the mold 1, ensure uniform cooling of both sides of the mold 1, and prevent product deformation or quality problems caused by uneven temperature.

[0064] Furthermore, by symmetrically arranging the first blowing device 51 and the second blowing device 52 on both sides of the mold 1, both sides of the mold 1 can be processed at the same time, which is beneficial to reducing the processing time and effectively improving the production efficiency.

[0065] Furthermore, the symmetrically arranged first blowing device 51 and second blowing device 52 can more effectively utilize the blowing energy, effectively reduce energy waste, reduce production costs, and improve energy utilization efficiency.

[0066] The implementation method of this embodiment is as follows:

[0067] A blowing device for accelerating mold separation comprises a mold 1 for lens molding and a blowing device 2, wherein the mold 1 comprises an upper mold 11 and a lower mold 12 detachably connected to the upper mold 11, and the blowing device 2 comprises a blowing shell 21, and a nitrogen connector 22 connected to a nitrogen source to provide nitrogen is provided on the blowing shell 21, and a space formed by one end of the nitrogen connector 22 and an inner cavity of the blowing shell 21 is provided with an outlet channel 23, and a side of the blowing shell 21 close to the mold 1 is also provided with an outlet hole assembly 3 which is communicated with the outlet channel 23 and has an opening facing the mold 1, the nitrogen connector 22 is connected to an external nitrogen source to obtain nitrogen, and the nitrogen is transmitted to the outlet hole assembly 3 through the outlet channel 23, and finally is respectively connected to the outer wall of the upper mold 11 and the lower mold through the outlet hole assembly 3. The upper mold 11, the lower mold 12 and the lens between the upper mold 11 and the lower mold 12 are in contact with the outer wall, so that the temperature of the upper mold 11, the lower mold 12 and the lens located between the upper mold 11 and the lower mold 12 drops rapidly. Utilizing the principle that different materials have different expansion coefficients, the upper mold 11, the lower mold 12 and the lens shrink at different speeds, thereby reducing adhesion, which helps to smoothly remove the molded lens between the upper mold 11 and the lower mold 12, and effectively solves the problem that in the existing compression molding process, lens molding needs to be carried out at a relatively high temperature. At high temperature, the intermolecular force is enhanced, and the contact surface between the lens and the upper and lower molds produces adhesion. This adhesion makes it difficult to separate the lens from the mold after the lens is molded, and it is easy to cause mold damage or lens surface quality degradation during the lens removal process.

[0068] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A blowing device for accelerating mold separation, comprising a mold (1) for lens molding and a blowing device (2), characterized in that: The mold (1) comprises an upper mold (11) and a lower mold (12) detachably connected to the upper mold (11); the blowing device (2) comprises a blowing shell (21); a nitrogen connector (22) connected to a nitrogen source to provide nitrogen is provided on the blowing shell (21); a space enclosed by one end of the nitrogen connector (22) and an inner cavity of the blowing shell (21) is provided with an outlet channel (23); a side of the blowing shell (21) close to the mold (1) is also provided with an outlet hole assembly (3) in communication with the outlet channel (23), so that nitrogen can contact the outer wall of the upper mold (11) and the outer wall of the lower mold (12) respectively through the outlet hole assembly (3).

2. The blowing device for accelerating mold separation according to claim 1, characterized in that: The air outlet assembly (3) comprises a horizontal air outlet assembly (31) arranged in a horizontal direction, and the length of the horizontal air outlet assembly (31) in the horizontal direction is respectively greater than or equal to the length of the upper mold (11) in the horizontal direction and the length of the lower mold (12) in the horizontal direction.

3. The blowing device for accelerating mold separation according to claim 2, characterized in that: The horizontal air outlet assembly (31) is composed of a plurality of horizontal air outlets spaced apart in the horizontal direction.

4. The blowing device for accelerating mold separation according to claim 1, characterized in that: The air outlet channel (23) comprises a first air outlet channel component (231) communicated with the nitrogen joint, and a second air outlet channel component (232) connected to the first air outlet channel component (231) and communicated with the air outlet hole component (3).

5. The blowing device for accelerating mold separation according to claim 3, characterized in that: A flow diverter pipe assembly (4) in communication with the air outlet channel (23) is provided between the air outlet channel (23) and the horizontal air outlet hole assembly (31), wherein the flow diverter pipe assembly (4) comprises a plurality of flow diverter holes (41) arranged at intervals in the horizontal direction and corresponding to each of the horizontal air outlet holes.

6. The blowing device for accelerating mold separation according to claim 4, characterized in that: The cross section formed by the connection between the first air outlet channel component (231) and the second air outlet channel component (232) is in an "L" shape.

7. The blowing device for accelerating mold separation according to claim 1, characterized in that: A guide rail assembly (24) for driving the blow housing (21) to move closer to or farther from the mold (1) is provided on the side of the blow housing (21) away from the mold (1).

8. The blowing device for accelerating mold separation according to claim 7, characterized in that: The guide rail assembly (24) comprises a first guide rail assembly (241) and a second guide rail assembly (242) symmetrically arranged with respect to the first guide rail assembly (241).

9. The blowing device for accelerating mold separation according to claim 7, characterized in that: The guide rail assembly (24) and the air blowing housing (21) are integrally formed.

10. The blowing device for accelerating mold separation according to claim 1, characterized in that: The blowing device (2) comprises a first blowing device (51) and a second blowing device (52) which are symmetrically arranged on both sides of the mold (1).

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