Ultrasonic-assisted demolding highlight mold for ultra-thin lens of sweeper

Abstract

The invention relates to a sweeper ultra-thin lens highlight mold capable of achieving ultrasonic-assisted demolding, and belongs to the field of molds, the sweeper ultra-thin lens highlight mold comprises a base, a mold assembly and a demolding mechanism, the mold assembly is fixedly arranged at the top of the base, and the demolding mechanism is arranged on the inner wall of the mold assembly; the mold assembly comprises a fixed mold fixedly arranged at the top of the base, electric push rods are fixedly arranged at the positions, located on the two sides of the fixed mold, of the top of the base, and movable molds are fixedly arranged at the top ends of the two electric push rods; the demolding mechanism comprises an ultrasonic assembly and an ejection assembly. According to the ultrasonic-assisted demolding highlight mold for the ultra-thin lens of the sweeper, through cooperation of the ultrasonic assembly and the ejection assembly, the formed lens is separated from the mold core through high-frequency vibration generated by ultrasonic waves, and then the lens is ejected out of the mold core in cooperation with the ejection assembly; and the problems of scratches, deformation and the like on the surface of the lens caused by non-uniform ejection or local stress concentration are effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and in particular to an ultrasonically assisted demoulding mold for an ultra-thin lens of a sweeper with high gloss. Background Art

[0002] The high-gloss mold for the ultra-thin lens of a sweeper is a precision mold used to manufacture the lens of a sweeper. Its core lies in giving the lens excellent optical properties and beautiful appearance through high-gloss technology. The production process of the high-gloss mold usually includes the following key steps: First, the mold is installed on the injection molding machine and the mold is preheated to an appropriate temperature; then, the transparent plastic particles are heated to a molten state and injected into the mold cavity; then, the mold maintains a certain pressure and temperature to ensure that the plastic fully fills the cavity and cools to shape; finally, the molded lens is ejected from the mold through the demolding mechanism.

[0003] However, in the existing production process of high-gloss molds for ultra-thin lenses for sweepers, traditional demolding methods mainly rely on mechanical ejection mechanisms, such as ejector pins or ejector plates. However, during the demolding process, uneven ejection or local stress concentration is prone to occur, resulting in scratches, deformation, or even breakage on the lens surface, seriously affecting the optical performance and appearance quality of the lens. In addition, due to the extremely small wall thickness of the ultra-thin lens and the large adhesion to the mold core, the force required for demolding is large, which increases the risk of lens damage and restricts the production efficiency and yield rate of ultra-thin lenses for sweepers. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a high-gloss mold for an ultra-thin lens of a sweeper with ultrasonic-assisted demolding, which has the advantages of ultrasonic-assisted rapid demolding, and solves the problem that uneven ejection or local stress concentration is prone to occur during the demolding process, resulting in scratches, deformation or even breakage on the lens surface, seriously affecting the optical performance and appearance quality of the lens. In addition, since the wall thickness of the ultra-thin lens is extremely small and the adhesion to the mold core is relatively large, the force required for demolding is relatively large, which increases the risk of damage to the lens.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a high-gloss mold for an ultra-thin lens of a sweeping machine with ultrasonic-assisted demolding, comprising a base, a mold assembly, and a demolding mechanism, wherein the mold assembly is fixedly arranged on the top of the base, and the demolding mechanism is arranged on the inner wall of the mold assembly; The mold assembly includes a fixed mold fixedly arranged on the top of the base, electric push rods are fixedly arranged on the top of the base and on both sides of the fixed mold, and movable molds are fixedly arranged on the top ends of the two groups of electric push rods; The demoulding mechanism includes an ultrasonic component and an ejection component; The ultrasonic assembly includes four sets of fixed plates fixedly arranged on the inner wall of the fixed mold, the tops of the four sets of fixed plates are fixedly connected to horn rods, the tops of the four sets of horn rods are placed with mold cores, and the inner bottom wall of the fixed mold is provided with an ultrasonic generator; The ejection assembly includes a piston push rod fixedly arranged on the bottom wall of the fixed mold, a top mold part is provided at the top of the piston push rod, a bracket is provided at the top of the base, a pneumatic part that uses gas to control the movement of the piston push rod is fixedly arranged inside the bracket, and a connecting part that controls the state of the pneumatic part is provided on the outside of the electric push rod on the left.

[0006] Furthermore, a pouring hole is provided inside the movable mold, and a glue injection tube is embedded inside the pouring hole.

[0007] Furthermore, the shape of the fixed mold is set to be a cylinder with a hollow interior and a missing top, and the diameter of the mold core is adapted to the inner diameter of the fixed mold.

[0008] Furthermore, a vibration transmission rod is embedded in the interior of the amplitude transformer, the ultrasonic generator is electrically connected to the transducer, a controller is provided on the outside of the fixed mold, and the ultrasonic generator is electrically connected to the controller.

[0009] Furthermore, the ejector mold comprises a push plate fixedly arranged on the top end of the piston push rod, and a side of the push plate away from the piston push rod is fixedly connected to a plurality of ejector pins; The bottom of the mold core is provided with top holes corresponding to the positions of the plurality of groups of ejector pins, and the diameter of the top holes is adapted to the diameter of the ejector pins.

[0010] Furthermore, a plurality of groups of ejector pins are distributed in a ring shape and arranged on a side of the push plate away from the piston push rod.

[0011] Furthermore, the piston push rod includes a sealing sleeve fixedly connected to the inner bottom wall of the fixed mold, a piston head is slidably provided inside the sealing sleeve, and a push rod is fixedly connected to the top of the piston head.

[0012] Furthermore, the pneumatic part includes an airbag fixedly arranged inside the bracket, a return spring is fixedly connected between the upper and lower inner walls of the airbag, the outside of the airbag is connected to an air pipe, and the air pipe extends from one end of the airbag to the interior of the fixed mold and is connected to the sealing sleeve.

[0013] Furthermore, the connecting member includes a connecting plate fixedly connected to the outside of the electric push rod, the bottom of the connecting plate is fixedly connected to a connecting frame, and a top plate is slidably provided inside the bracket and below the airbag, and the top plate is connected to the connecting frame; The front and rear sides of the bracket are both provided with sliding openings, and sliding rods are slidably arranged inside the two groups of sliding openings. The ends of the two groups of sliding rods close to each other are respectively connected to the front and rear sides of the top plate.

[0014] Furthermore, the cross-sectional shape of the connecting frame is set to be L-shaped, and the interior of the airbag is filled with compressed air.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects: 1. This ultrasonically assisted demolding mold for the ultra-thin lens of a sweeper achieves an efficient and smooth demolding process through the coordinated cooperation of the ultrasonic component and the ejector component. During demolding, the high-frequency vibration generated by the ultrasonic generator is transmitted to the mold core through the horn, causing microscopic vibrations between the lens and the mold core, reducing the adhesion between the lens and the mold core, and separating the molded lens from the mold core. At the same time, the ejector pin in the ejector component, driven by the pneumatic component, moves synchronously with the ultrasonic vibration to evenly eject the lens from the mold core, effectively avoiding problems such as scratches and deformation on the lens surface caused by uneven ejection or local stress concentration.

[0016] 2. This ultrasonically assisted demolding mold for the ultra-thin lens of a sweeper with high gloss features uses an electric push rod to push the movable mold upward, which in turn drives the pneumatic parts through the connectors, allowing the ejection components to move synchronously, thus automating the demolding process. This ensures synchronization of the demolding action and improves production efficiency. In addition, the mold is equipped with a controller that can centrally control components such as the ultrasonic generator, electric push rod, and pneumatic parts. The operator can flexibly adjust the operating parameters of each component through the controller to meet the production requirements of lenses of different specifications, effectively improving the production quality and stability of the lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic transverse cross-sectional view of the overall structure of the present invention; Figure 4 It is a schematic cross-sectional plan view of the overall structure of the present invention; Figure 5 Schematic diagram of the demoulding mechanism of the present invention; Figure 6 It is a cross-sectional schematic diagram of the demoulding mechanism of the present invention; Figure 7 This is a schematic diagram of the connection between the pneumatic component and the top mold of the present invention; Figure 8 It is a cross-sectional schematic diagram of the connection structure between the pneumatic component and the top mold component of the present invention.

[0018] In the figure: 1. base; 2. mold assembly; 21. fixed mold; 22. electric push rod; 23. movable mold; 231. injection hose; 3. demoulding mechanism; 31. ultrasonic component; 311. fixed plate; 312. amplitude rod; 313. mold core; 314. ultrasonic generator; 32. ejector assembly; 321. piston push rod; 3211. sealing sleeve; 3212. piston head; 3213. ejector rod; 322. ejector part; 3221. push plate; 3222. ejector pin; 3223. ejector hole; 323. bracket; 324. pneumatic part; 3241. airbag; 3242. return spring; 3243. air pipe; 325. connector; 3251. connecting plate; 3252. connecting frame; 3253. ejector plate; 3254. sliding port; 3255. slide rod. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-8 In this embodiment, an ultrasonically assisted demolding ultra-thin lens high-gloss mold for a sweeping machine includes a base 1, a mold assembly 2, and a demolding mechanism 3. The mold assembly 2 is fixedly arranged on the top of the base 1, and the demolding mechanism 3 is arranged on the inner wall of the mold assembly 2.

[0021] In this embodiment, the mold assembly 2 includes a fixed mold 21 fixedly set on the top of the base 1, and electric push rods 22 are fixedly set on the top of the base 1 and on both sides of the fixed mold 21, and a movable mold 23 is fixedly set on the top of the two groups of electric push rods 22.

[0022] In this embodiment, the demoulding mechanism 3 includes an ultrasonic component 31 and an ejection component 32 .

[0023] In this embodiment, the ultrasonic component 31 includes four groups of fixed plates 311 fixedly arranged on the inner wall of the fixed mold 21, the tops of the four groups of fixed plates 311 are fixedly connected with variable amplitude rods 312, the tops of the four groups of variable amplitude rods 312 are placed with mold cores 313, and the inner bottom wall of the fixed mold 21 is provided with an ultrasonic generator 314.

[0024] It should be noted that the ultrasonic generator 314 is a digital ultrasonic generator with an operating frequency of 20kHz. It can collect and transmit data through the Profinet interface and be integrated into the machine control for ultrasonic control. The amplitude transformer 312 is model KM-B20-11, with a frequency of 20kHz and a transformation ratio of 1:1 for ultrasonic conversion vibration frequency.

[0025] It should also be noted that the diameter of the mold core 313 is adapted to the inner diameter of the fixed mold 21, and its shape is usually cylindrical. Its dimensional accuracy is extremely high to ensure the accuracy and consistency of lens molding. The surface of the mold core 313 is mirror-treated, and the surface roughness can reach Ra0.02μm or less, which can give the lens excellent optical properties and beautiful appearance. At the same time, its surface also has certain wear resistance and corrosion resistance to extend its service life. The mold core 313 is placed on the top of the amplitude rod 312, and is ensured to remain stable during vibration through precise mechanical matching and fixing methods. The mold core 313 is a key component for lens molding, and its surface shape determines the optical curvature of the lens. During the injection molding process, the molten plastic is molded around the mold core 313 to form the precise shape of the lens.

[0026] In this embodiment, the ejection assembly 32 includes a piston push rod 321 fixedly arranged on the inner bottom wall of the fixed mold 21, a top mold part 322 is provided at the top of the piston push rod 321, a bracket 323 is provided at the top of the base 1, and a pneumatic part 324 for controlling the movement of the piston push rod 321 by gas is fixedly arranged inside the bracket 323, and a connecting part 325 for controlling the state of the pneumatic part 324 is provided on the outer side of the left electric push rod 22.

[0027] In this embodiment, a pouring hole is opened inside the movable mold 23 , and a glue injection tube 231 is embedded inside the pouring hole.

[0028] Specifically, the electric push rod 22 drives the movable mold 23 to move toward the fixed mold 21 until the movable mold 23 and the fixed mold 21 are tightly closed to form the mold cavity required for lens molding. The injection molding machine injects the transparent plastic particles heated to a molten state into the mold cavity through the injection tube 231 to fill the entire mold cavity. After the injection is completed, the injection molding machine maintains a certain pressure to ensure that the plastic is fully filled in the mold cavity and compensate for its shrinkage during the cooling process to achieve lens molding.

[0029] In this embodiment, the shape of the fixed mold 21 is set to be a cylinder with a hollow interior and a missing top, and the diameter of the mold core 313 is adapted to the inner diameter of the fixed mold 21.

[0030] In this embodiment, a vibration transmission rod is embedded in the horn 312 , the ultrasonic generator 314 is electrically connected to the transducer, a controller is provided on the outside of the fixed mold 21 , and the ultrasonic generator 314 is electrically connected to the controller.

[0031] Specifically, after the lens is cooled and formed, the ultrasonic generator 314 is started to generate a high-frequency electrical oscillation signal, causing the transducer to convert electrical energy into ultrasonic vibrations. The vibrations are transmitted and amplified through the amplitude rod 312, and then act on the mold core 313, causing microscopic vibrations to be generated between the lens and the mold core 313, significantly reducing the adhesion between the two, and preparing for the subsequent ejection action.

[0032] It should be noted that the start and stop of the ultrasonic generator 314 is controlled by a controller, and the controller can control the start and stop by manual opening and closing or preset relevant instructions. The start and stop control is an existing common technology and will not be described in detail in this application.

[0033] In this embodiment, the ejector mold 322 includes a push plate 3221 fixedly disposed on the top end of the piston push rod 321 , and a plurality of ejector pins 3222 are fixedly connected to a side of the push plate 3221 away from the piston push rod 321 .

[0034] In this embodiment, the bottom of the mold core 313 is provided with top holes 3223 corresponding to the positions of the plurality of groups of ejector pins 3222 , and the diameter of the top holes 3223 is adapted to the diameter of the ejector pins 3222 .

[0035] In this embodiment, a plurality of groups of ejector pins 3222 are distributed in a ring shape and arranged on a side of the push plate 3221 away from the piston push rod 321 .

[0036] In this embodiment, the piston push rod 321 includes a sealing sleeve 3211 fixedly connected to the inner bottom wall of the fixed mold 21, a piston head 3212 is slidably provided inside the sealing sleeve 3211, and a push rod 3213 is fixedly connected to the top of the piston head 3212.

[0037] In this embodiment, the pneumatic part 324 includes an airbag 3241 fixedly arranged inside the bracket 323, and a return spring 3242 is fixedly connected between the upper and lower inner walls of the airbag 3241. The outer side of the airbag 3241 is connected to an air pipe 3243, and the end of the air pipe 3243 away from the airbag 3241 extends to the interior of the fixed mold 21 and is connected to the sealing sleeve 3211.

[0038] For details, see Figure 5-Figure 8 When demolding is required, the electric push rod 22 pushes the movable mold 23 upward. The upward movement of the movable mold 23 drives the top plate 3253 to move upward through the connecting piece 325. When the top plate 3253 moves upward, the air bag 3241 is compressed, so that the volume of the gas inside the air bag 3241 is reduced and the air pressure is increased. The pressurized gas in the air bag 3241 is transmitted to the inside of the sealing sleeve 3211 through the air pipe 3243, pushing the piston head 3212 upward, thereby driving the ejector rod 3213 and the ejector mold 322 to move upward synchronously, and the ejector pin 3222 ejects the lens from the mold core 313 of the fixed mold 21. The upward movement of the ejector pin 3222 is synchronized with the upward movement of the movable mold 23, ensuring that the lens is smoothly ejected when the movable mold 23 is separated from the fixed mold 21, avoiding scratches, deformation and other problems on the lens surface caused by uneven ejection or local stress concentration.

[0039] In this embodiment, the connecting member 325 includes a connecting plate 3251 fixedly connected to the outside of the electric push rod 22, the bottom of the connecting plate 3251 is fixedly connected to a connecting frame 3252, and a top plate 3253 is slidably provided inside the bracket 323 and below the airbag 3241, and the top plate 3253 is connected to the connecting frame 3252.

[0040] In this embodiment, sliding openings 3254 are provided on the front and rear sides of the bracket 323, and sliding rods 3255 are slidably provided inside the two sets of sliding openings 3254. The ends of the two sets of sliding rods 3255 that are close to each other are respectively connected to the front and rear sides of the top plate 3253.

[0041] In this embodiment, the cross-sectional shape of the connecting frame 3252 is set to be L-shaped, and the interior of the airbag 3241 is filled with compressed air.

[0042] The working principle of the above embodiment is: The electric push rod 22 drives the movable mold 23 to move toward the fixed mold 21 until the movable mold 23 and the fixed mold 21 are tightly closed to form the mold cavity required for lens molding. The injection molding machine injects the transparent plastic particles heated to a molten state into the mold cavity through the injection tube 231 to fill the entire cavity. After the injection is completed, the injection molding machine maintains a certain pressure to ensure that the plastic is fully filled in the mold cavity and compensate for its shrinkage during the cooling process to ensure the dimensional accuracy of the lens.

[0043] After the lens is cooled and formed, the ultrasonic generator 314 is started to generate a high-frequency electrical oscillation signal, causing the transducer to convert electrical energy into ultrasonic vibrations. The vibrations are transmitted and amplified by the horn 312 and act on the mold core 313, causing microscopic vibrations to occur between the lens and the mold core 313, significantly reducing the adhesion between the two and preparing for the subsequent ejection action.

[0044] Driven by external electric power, the electric push rod 22 starts to push the movable mold 23 upward, and the movable mold 23 gradually separates from the fixed mold 21. In the initial state, the airbag 3241 is in a natural state, filled with a certain amount of compressed air, and the return spring 3242 is in a natural or slightly compressed state. The air pipe 3243 connects the airbag 3241 and the sealing sleeve 3211. At this time, the air pressure inside the airbag 3241 and the sealing sleeve 3211 is balanced, the piston push rod 321 remains in the initial position, and the ejector pin 3222 is in a standby state. When demoulding is required, the electric push rod 22 pushes the movable mold 23 upward, and the upward movement of the movable mold 23 drives the ejector plate 3253 to move upward through the connecting piece 325. When the ejector plate 3253 moves upward, the airbag 3241 is compressed, so that the volume of the gas inside the airbag 3241 decreases and the air pressure increases. The pressurized gas in the airbag 3241 is transmitted to the inside of the sealing sleeve 3211 through the air pipe 3243, pushing the piston head 3212 to move upward, thereby driving the ejector rod 3213 and the ejector mold 322 to move upward synchronously, and the ejector pin 322 ejects the lens and ejects the lens from the mold core 313 of the fixed mold 21. The upward movement of the ejector pin 3222 is synchronized with the upward movement of the movable mold 23, ensuring that the lens is smoothly ejected at the same time as the movable mold 23 is separated from the fixed mold 21, avoiding scratches, deformation and other problems on the lens surface due to uneven ejection or local stress concentration.

[0045] After demolding is completed, the electric push rod 22 is reset under the action of the external electric driving force, and the movable mold 23 moves downward to its initial position. At this time, the upward thrust of the connecting part 325 on the top plate 3253 disappears, and the reset spring 3242 releases the stored elastic potential energy, pushing the top plate 3253 to move downward, and the airbag 3241 gradually returns to its original state, and the internal air pressure decreases. At the same time, the gas in the sealing sleeve 3211 flows back to the airbag 3241 through the air pipe 3243. The piston push rod 321 drives the top mold part 322 and the ejector pin 3222 back to their initial positions under the action of the negative pressure generated by the gas loss, completing the reset process of the pneumatic part 324.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0047] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an integrated molding process).

[0048] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A high-gloss mold for an ultra-thin lens of a sweeping machine with ultrasonic-assisted demoulding, characterized by: It comprises a base (1), a mold assembly (2), and a demoulding mechanism (3), wherein the mold assembly (2) is fixedly arranged on the top of the base (1), and the demoulding mechanism (3) is arranged on the inner wall of the mold assembly (2); The mold assembly (2) comprises a fixed mold (21) fixedly arranged on the top of the base (1), electric push rods (22) fixedly arranged on the top of the base (1) and on both sides of the fixed mold (21), and movable molds (23) fixedly arranged on the top ends of two groups of electric push rods (22); The demoulding mechanism (3) comprises an ultrasonic component (31) and an ejection component (32); The ultrasonic assembly (31) comprises four groups of fixed plates (311) fixedly arranged on the inner wall of the fixed mold (21), the tops of the four groups of fixed plates (311) are fixedly connected to horn rods (312), the tops of the four groups of horn rods (312) are provided with mold cores (313), and the inner bottom wall of the fixed mold (21) is provided with an ultrasonic generator (314); The ejection assembly (32) includes a piston push rod (321) fixedly arranged on the inner bottom wall of the fixed mold (21), a top mold member (322) is provided at the top of the piston push rod (321), a bracket (323) is provided at the top of the base (1), a pneumatic member (324) for controlling the movement of the piston push rod (321) by using gas is fixedly provided inside the bracket (323), and a connecting member (325) for controlling the state of the pneumatic member (324) is provided on the outer side of the left electric push rod (22).

2. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 1, characterized in that: A casting hole is provided inside the movable mold (23), and a glue injection tube (231) is embedded inside the casting hole.

3. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 2, characterized in that: The shape of the fixed mold (21) is set to be a cylinder with a hollow interior and a missing top, and the diameter of the mold core (313) is adapted to the inner diameter of the fixed mold (21).

4. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 3, characterized in that: A vibration transmission rod is embedded in the interior of the amplitude transformer (312), the ultrasonic generator (314) is electrically connected to a transducer, a controller is provided on the outside of the fixed mold (21), and the ultrasonic generator (314) is electrically connected to the controller.

5. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 4, characterized in that: The ejector mold (322) includes a push plate (3221) fixedly arranged on the top end of the piston push rod (321), and a plurality of ejector pins (3222) are fixedly connected to a side of the push plate (3221) away from the piston push rod (321); The bottom of the mold core (313) is provided with top holes (3223) corresponding to the positions of the plurality of groups of ejector pins (3222), and the diameter of the top holes (3223) is adapted to the diameter of the ejector pins (3222).

6. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 5, characterized in that: A plurality of groups of ejector pins (3222) are arranged in an annular distribution on a side of the push plate (3221) away from the piston push rod (321).

7. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 6, characterized in that: The piston push rod (321) comprises a sealing sleeve (3211) fixedly connected to the inner bottom wall of the fixed mold (21), a piston head (3212) is slidably provided inside the sealing sleeve (3211), and a push rod (3213) is fixedly connected to the top of the piston head (3212).

8. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 7, characterized in that: The pneumatic component (324) includes an airbag (3241) fixedly arranged inside the bracket (323), a return spring (3242) fixedly connected between the upper and lower inner walls of the airbag (3241), an air tube (3243) connected to the outside of the airbag (3241), and an end of the air tube (3243) away from the airbag (3241) extends to the inside of the fixed mold (21) and is connected to the sealing sleeve (3211).

9. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 8, characterized in that: The connecting member (325) includes a connecting plate (3251) fixedly connected to the outside of the electric push rod (22); a connecting frame (3252) is fixedly connected to the bottom of the connecting plate (3251); a top plate (3253) is slidably provided inside the bracket (323) and below the airbag (3241); and the top plate (3253) is connected to the connecting frame (3252); The bracket (323) is provided with sliding openings (3254) on both the front and rear sides. Sliding rods (3255) are slidably provided inside the two groups of sliding openings (3254). The ends of the two groups of sliding rods (3255) that are close to each other are respectively connected to the front and rear sides of the top plate (3253).

10. The ultrasonic-assisted demoulding high-gloss mold for an ultra-thin lens of a sweeper according to claim 9, characterized in that: The cross-sectional shape of the connecting frame (3252) is set to be L-shaped, and the interior of the airbag (3241) is filled with compressed air.

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