A sheet pushing mechanism and a method for forming a laminated sheet

Abstract

The present application relates to a kind of push piece mechanism and laminated sheet forming method, comprising: material carrying component, including material carrying part and step part, material carrying part is used to carry the vertical laminated sheet structure formed by the stacking of multiple pieces of material sheet, step part is integrally formed with material carrying part, step part includes several material carrying steps, the material carrying step at the bottom layer of step part is connected with material carrying part, the height of material carrying step is same with the thickness of material sheet, the width of material carrying step is less than the width of material sheet;Material pushing assembly is arranged on the side of material carrying component, including pushing part and pressure maintaining part, pushing part is correspondingly arranged with material sheet, pushing part sequentially pushes each piece of material sheet to move on material carrying step and forms step laminated sheet structure, pressure maintaining part is integrally formed with pushing part, pressure maintaining part includes several pressure maintaining steps, pressure maintaining step is correspondingly arranged with material carrying step, the pressure maintaining step at the top layer of pressure maintaining part is connected with pushing part.The present application sets up push piece mechanism to carry out push piece processing, prepares and forms step laminated sheet structure, satisfies product demand.

Description

Technical Field

[0001] This invention relates to the field of lens manufacturing technology, and in particular to a lens pushing mechanism and a lens stacking method. Background Technology

[0002] In the field of lens manufacturing, lenses are generally formed by stacking multiple glass plates. With the development of mechanical automation, existing technologies have also introduced stacking machines and stacking equipment for stacking glass plates. For example, Chinese patent publication number CN112193833A, entitled "A Stacking Machine," includes a frame and a storage mechanism, a loading mechanism, a feeding mechanism, and a unloading mechanism mounted on the frame. The storage mechanism is used to hold a basket containing glass plates. The loading mechanism is located between the storage mechanism and the feeding mechanism and is used to pick up the glass plates from the storage mechanism. The glass sheets are fed to the feeding mechanism; the feeding mechanism is used to convey the glass sheets picked up by the feeding mechanism to a position close to the unloading mechanism; the unloading mechanism includes a stacking device for placing glass sheets, a paper holder device for placing paper, and a picking device for picking up glass from the feeding mechanism and paper from the paper holder device into the stacking device. When the picking device picks up a glass sheet from the feeding mechanism, it places the picked-up paper into the stacking device; when the picking device places the picked-up glass into the stacking device, it picks up the paper from the paper holder device. This stacking machine has an automatic stacking function.

[0003] As described in the prior art, the existing stacking machines can only achieve the effect of stacking glass sheets together to cover the entire lens. This results in a relatively thick lens. With the miniaturization of camera products, the lens thickness of existing products needs to be thinner and thinner. This requires step stacking during the stacking process, followed by cutting, in order to reduce the thickness of the lens as much as possible without changing the number of glass sheets. However, the existing stacking machines cannot achieve the step stacking process. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the stacking machine in the prior art cannot achieve stepped stacking, and to provide a pushing mechanism and a stacking forming method. After the stacking machine in the prior art is used to prepare the upright stacked structure, the pushing mechanism is used to push the stacked structure to form a stepped stacked structure to meet the product requirements.

[0005] To solve the above-mentioned technical problems, the present invention provides a pusher mechanism, comprising:

[0006] A material-carrying assembly includes a material-carrying section and a stepped section. The material-carrying section is used to support an upright stacked structure formed by stacking multiple material sheets. The stepped section is integrally formed with the material-carrying section. The stepped section includes several material-carrying steps. The bottom material-carrying step of the stepped section is connected to the material-carrying section. The height of the material-carrying step is the same as the thickness of the material sheet, and the width of the material-carrying step is less than the width of the material sheet.

[0007] A feeding assembly is disposed on one side of the loading assembly, including a feeding section and a pressure holding section. The feeding section is disposed corresponding to the material sheet. The feeding section pushes each material sheet partially onto the loading step in sequence to form a stepped stacked structure. The pressure holding section is integrally formed with the feeding section. The pressure holding section includes several pressure holding steps, which are disposed corresponding to the loading step. The pressure holding step located at the top layer of the pressure holding section is connected to the feeding section.

[0008] In one embodiment of the present invention, a clearance groove is provided between two adjacent material loading steps of the stepped portion and between two adjacent pressure holding steps of the pressure holding portion.

[0009] In one embodiment of the present invention, the number of the material loading steps and the pressure holding steps is greater than or equal to the number of stacked material sheets.

[0010] In one embodiment of the present invention, a lifting component is further included, the driving end of the lifting component being connected to the material loading component, and the lifting component driving the material loading component to move up and down relative to the pushing component.

[0011] In one embodiment of the present invention, the pushing part pushes the material sheet from the bottom of the upright stacked structure step by step from the material loading part to the material loading step, forming a stepped stacked structure.

[0012] In one embodiment of the present invention, a driving component is further included: the driving end of the driving component is connected to the pushing component, and the driving component drives the pushing component to push the material sheet onto the loading step.

[0013] In one embodiment of the present invention, the support surfaces of the plurality of material-carrying steps have the same width, and the pressure-holding surfaces of the plurality of pressure-holding steps have the same width.

[0014] To solve the above-mentioned technical problems, the present invention also provides a stacking forming method, which employs the above-mentioned pushing mechanism and includes the following steps:

[0015] S1. Prepare an upright stacked structure and place the upright stacked structure on the material carrier.

[0016] S2. Set up the pushing part, first push the bottommost piece of the vertical stacked structure against the stepped part to position the vertical stacked structure, and then push each layer of the material piece onto the loading step step by step, starting from the second layer of the vertical stacked structure, until the topmost piece of the material piece is pushed onto the loading step to form a stepped stacked structure.

[0017] S3. The pressure-holding part is configured to cooperate with the stepped part to achieve pressure-holding treatment of the stepped laminate structure.

[0018] In one embodiment of the present invention, in step S1, multiple sheets are stacked together one by one in the same direction to ensure that the upper sheet completely covers the lower sheet. Adhesive dispensing and pressing are performed between two adjacent sheets, and adhesive wiping is performed on the outer periphery of the stacked vertical sheet structure.

[0019] In one embodiment of the present invention, in step S2, the distance that the lifting component drives the material loading component to move each time is set to the height of the material loading step. After the lifting component drives the material loading component to move once, the pushing component completes one pushing action. The distance that the driving component drives the pushing component to move each time is set to the width of the material loading step.

[0020] The technical solution of the present invention has the following advantages compared with the prior art:

[0021] The sheet-pushing mechanism of the present invention first sets up a pushing part that cooperates with a stepped part. On the stepped part, the height of the loading step is the same as the thickness of the sheet, and the width of the loading step is smaller than the width of the sheet. The pushing part pushes the sheets in the vertical stacked structure one by one onto the loading step of the stepped part to form a stepped stacked structure. Then, a pressure-holding part is set up that cooperates with the stepped part to hold pressure and shape the stepped stacked structure.

[0022] The lamination forming method of the present invention does not directly use a lamination machine to tilt and stack the sheets. Instead, after preparing an upright lamination structure using an existing lamination machine, the above-mentioned pushing mechanism is used to push the sheets. First, the upright lamination structure is positioned, and then, starting from the second layer of the upright lamination structure, each layer of sheet is pushed onto the loading step in stages until the top layer of sheet is pushed onto the loading step, forming a stepped lamination structure and producing a product that meets the requirements. Attached Figure Description

[0023] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0024] Figure 1 This is a schematic diagram of the overall structure of the pusher mechanism of the present invention;

[0025] Figure 2 This is a schematic diagram of the material loading assembly of the present invention;

[0026] Figure 3 This is a schematic diagram of the material pushing component of the present invention;

[0027] Figure 4 This is a flowchart of the stacking method of the present invention.

[0028] Explanation of reference numerals in the accompanying drawings: 1. Material loading assembly; 11. Material loading section; 12. Stepped section; 13. Material loading step; 14. Clearance groove; 2. Pushing assembly; 21. Pushing section; 22. Pressure holding section; 23. Pressure holding step; 3. Lifting assembly; 4. Drive assembly. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0030] As mentioned earlier, existing lenses are made by stacking multiple glass plates together using an adhesive dispensing process. To improve the efficiency and quality of stacking, various types of stacking machines have been disclosed to complete the processes of dispensing, pressing, and wiping adhesive, thereby achieving the stacking of glass plates. Lenses manufactured using existing stacking machines have fully covered glass plates, meaning that multiple glass plates are set to have the same shape and size, and are gripped and positioned by a robotic arm to ensure that multiple glass plates can be stacked in the same position. After stacking, the overall size of the product is the same as the size of a single glass plate.

[0031] However, with the miniaturization of camera products, the lens thickness required for existing products is getting thinner and thinner. This necessitates step stacking during the lens stacking process, which involves partially misaligning the glass plates. This increases the refractive index and transmittance of light. Then, the lenses are cut to minimize the lens thickness without changing the number of glass plates.

[0032] Existing stacking machines face two major challenges in stepped stacking. One challenge lies in the precise positioning of multiple layers. Compared to full-coverage stacking, stepped stacking requires much more accurate positioning, ensuring each step protrudes by the same distance. This necessitates repositioning each glass sheet based on the previous one during stacking, requiring image acquisition and positioning, thus increasing the overall structural and algorithmic complexity of the equipment. The other challenge is maintaining pressure during stacking. Because stepped stacking involves partially suspended stacking, pressing the glass sheets can easily cause them to warp and break. Therefore, based on theoretical modeling and practical operation, the inventors believe that forming a stepped stacking structure using direct stacking is extremely difficult. Even if the corresponding equipment could be manufactured, the yield rate would be significantly reduced in actual operation.

[0033] Based on the above analysis, and in order to meet the actual manufacturing needs of the product, the inventors of this application provide a pushing mechanism and a stacking method. Instead of directly manufacturing a stepped stacked structure, the method uses an existing stacking machine to manufacture an upright stacked structure, and then uses a pushing mechanism to push the sheets to form a stepped stacked structure, thereby meeting product requirements and improving the yield of product manufacturing. The pushing mechanism and stacking method of this application will be further explained below with reference to specific embodiments.

[0034] Example 1

[0035] Reference Figure 1 As shown, the present invention discloses a material loading component 1 and a material pushing component 2, wherein the material loading component 1 and the material pushing component 2 are configured to cooperate to complete the material pushing action.

[0036] Reference Figure 2As shown, the material-carrying assembly 1 includes a material-carrying section 11 and a stepped section 12. The material-carrying section 11 has a material-carrying plane for supporting the upright stacked structure. The upright stacked structure is formed by stacking multiple sheets of material. In this embodiment, the sheets are glass sheets. The multiple glass sheets are set to have the same shape and size. They are gripped and positioned by a robotic arm to ensure that the multiple glass sheets can be stacked in the same position. After stacking, the overall size of the product is the same as the size of a single glass sheet. The size of the material-carrying plane is set to be larger than the glass sheet, so that the upright stacked structure can completely rest on the material-carrying plane. The stepped section 12 is integrally formed with the material-carrying section 11. The stepped section 12 includes a plurality of material-carrying steps 13 located on the steps. The bottommost material-carrying step 13 of section 12 is connected to the material-carrying section 11. In order to ensure that multiple material sheets can move towards the material-carrying step 13, the height of the material-carrying step 13 is set to be the same as the thickness of the material sheet, that is, each material sheet can slide towards the step section 12 and be supported by the material-carrying step 13. In addition, the width of the material-carrying step 13 is set to be less than the width of the material sheet. In this way, when the material sheet moves towards the step section 12, it will abut against the material-carrying step 13 during the movement. Part of the material sheet will fall on the material-carrying step 13, and the other part will still fall on the material sheet of the next layer. While ensuring the formation of steps, the multi-layer stacked material sheets will not be separated.

[0037] Reference Figure 3 As shown, the pushing component 2 is disposed on one side of the loading component 1. The pushing component 2 includes a pushing part 21 and a pressure holding part 22. The pushing part 21 is disposed corresponding to the sheet. The pushing component 2 moves toward the loading component 1. During the process of the pushing part 21 pushing the sheet, the sheet is first pushed to move on the next loading step 13 until the sheet abuts against the upper loading step 13, thereby completing the pushing action of one sheet. The pushing part 21 can sequentially push each sheet in a stack of sheets to the loading step 13, thereby forming a stepped stacked sheet structure. The pressure holding part 22 is integrally formed with the pushing part 21. The pressure-holding section 22 includes several pressure-holding steps 23, which are correspondingly arranged with the material-carrying steps 13. The pressure-holding step 23 at the top of the pressure-holding section 22 is connected to the pushing section 21. After each piece of material is pushed, the pressure-holding section 22 can hold and fix its position. Since the pressure-holding section 22 is equipped with pressure-holding steps 23 that are aligned with the material-carrying steps 13 of the stepped section 12, each piece of glass can be independently supported and pressured during the pressure-holding process, preventing the glass from being suspended in the air. This prevents the glass from warping, ensures the pressure-holding effect, and also prevents the glass from being crushed.

[0038] Specifically, in the actual sheet-pushing process, since the corners of each sheet are right angles, when designing the steps of the stepped section 12 in the material carrier assembly 1 and the pressure-holding section 22 in the material pusher assembly 2, it is impossible to guarantee that the right angles of each step perfectly match the right angles of the sheet. This requires very high precision in the fabrication equipment. However, if the right angles of the steps do not perfectly match the right angles of the sheet, the sheet may break during extrusion, leading to the failure of the entire product fabrication. To avoid this situation, refer to... Figure 2 and Figure 3 As shown, a clearance groove 14 is provided between the two adjacent material-carrying steps 13 of the stepped section 12 and the two adjacent pressure-holding steps 23 of the pressure-holding section 22. The clearance groove 14 is an arc-shaped structure, and the corners of the material sheet can be inserted into the clearance groove 14 so that the corners of the material sheet do not directly contact the step connection, thus preventing the material sheet from being squeezed.

[0039] In this embodiment, the number of loading steps 13 and pressure holding steps 23 is determined according to the number of sheets in the vertical stacked structure. Setting the number of loading steps 13 and pressure holding steps 23 to be greater than or equal to the number of stacked sheets enables the sheet pushing mechanism of this embodiment to complete the pushing action of all sheets.

[0040] Reference Figure 1 As shown, in this embodiment, in order to complete the step-by-step pushing action of each piece of material, it is also necessary to provide a power source to drive the material loading component 1 and the material pushing component 2 in the horizontal and vertical directions. Therefore, the pushing mechanism also includes a lifting component 3 and a driving component 4, which cooperate to complete the step-by-step pushing action.

[0041] Specifically, the driving end of the lifting component 3 is connected to the material loading component 1. The lifting component 3 drives the material loading component 1 to move up and down relative to the pushing component 2. The lifting component 3 first drives the pushing part 21 in the pushing component 2 to contact the bottommost material sheet in the vertical stacked structure, pushing the material sheet to abut against the first layer of the material loading step 13, thus positioning the entire vertical stacked structure. Then, the lifting component 3 drives the material loading component 1 to move relative to it, so that the pushing part 21 in the pushing component 2 contacts the material sheet in the second layer of the vertical stacked structure, pushing the second layer of the material sheet to abut against the second layer of the material loading step 13. This process is repeated, with the pushing part 21 pushing the material sheet from the bottom of the vertical stacked structure step by step from the material loading part 11 to the material loading step 13, thereby forming a stepped stacked structure.

[0042] Specifically, the driving end of the driving component 4 is connected to the pushing component 2, and the driving component 4 drives the pushing part 21 in the pushing component 2 to push the material sheet onto the loading step 13.

[0043] In this embodiment, in order to make the protruding length of each piece of material the same, the support surfaces of the multiple material loading steps 13 are set to have the same width, and the pressure holding surfaces of the multiple pressure holding steps 23 are also set to have the same width.

[0044] In this embodiment, both the lifting component 3 and the driving component 4 are linear motor modules. The servo motor drives the material loading component 1 and the pushing component 2 to slide along the guide rail, thereby completing the pushing action. In other embodiments, the lifting component 3 and the driving component 4 can also be driven by various methods such as screw slides and cylinder slides, as long as they can drive the material loading component 1 and the pushing component 2 to slide. Linear motor modules, screw slides, and cylinder slides are all existing technologies and will not be described in detail here.

[0045] Example 2

[0046] Reference Figure 4 As shown, based on the above embodiment 1, this application also provides a stacking forming method, which uses the above-mentioned pushing mechanism and includes the following steps:

[0047] S1. Prepare an upright stacked structure and place the upright stacked structure on the material carrier 11;

[0048] S2. The pusher 21 is set up to push the bottommost piece of the vertical stacked structure against the stepped part 12 to position the vertical stacked structure. Starting from the second layer of the vertical stacked structure, each layer of the piece is pushed onto the loading step 13 step by step until the topmost piece is pushed onto the loading step 13 to form a stepped stacked structure.

[0049] S3. The pressure-holding part 22 is configured to cooperate with the stepped part 12 to achieve pressure-holding treatment of the stepped laminate structure.

[0050] In this embodiment, instead of directly using a stacking machine to tilt and stack the sheets, an upright stacking structure is prepared using an existing stacking machine, and then the above-mentioned pushing mechanism is used to push the sheets. First, the upright stacking structure is positioned, and then, starting from the second layer of the upright stacking structure, each layer of sheets is pushed onto the loading step 13 in stages until the top layer of sheets is pushed onto the loading step 13, forming a stepped stacking structure, and producing a product that meets the requirements.

[0051] Specifically, in step S1, multiple sheets are stacked one by one in the same direction to ensure that the upper sheet completely covers the lower sheet. Adhesive dispensing and pressing are performed between adjacent sheets, and adhesive wiping is performed on the outer periphery of the stacked vertical sheet structure. Here, adhesive dispensing, pressing, and wiping are all existing technologies and can be implemented with existing equipment. The technical solution of this application only uses existing technologies to prepare and form a vertical sheet structure. Therefore, it is not necessary to explain the adhesive dispensing, pressing, and wiping technologies. It is only necessary to define that the obtained vertical sheet structure is a product after adhesive dispensing, pressing, and wiping.

[0052] In step S2, the lifting component 3 is set to move the material loading component 1 by the height of the material loading step 13 each time. After the lifting component 3 moves the material loading component 1 once, the pushing component 2 completes one pushing action. The driving component 4 is set to move the pushing component 2 by the width of the material loading step 13 each time. This ensures that the pushing part 21 can accurately press against a piece of material each time, and ensures that the piece of material is not excessively squeezed, thus preventing the piece of material from being squeezed and broken.

[0053] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pusher mechanism, characterized in that, include: A material-carrying assembly includes a material-carrying section and a stepped section. The material-carrying section is used to support an upright stacked structure formed by stacking multiple material sheets. The stepped section is integrally formed with the material-carrying section. The stepped section includes several material-carrying steps. The bottom material-carrying step of the stepped section is connected to the material-carrying section. The height of the material-carrying step is the same as the thickness of the material sheet, and the width of the material-carrying step is less than the width of the material sheet. A pushing assembly, disposed on one side of the loading assembly, includes a pushing section and a pressure holding section. The pushing section is correspondingly disposed to the material sheet. The pushing section sequentially pushes each material sheet partially onto the loading step to form a stepped stacked structure. The pushing section pushes the material sheet from the loading section to the loading step step from the bottom of the upright stacked structure. The pressure holding section is integrally formed with the pushing section. The pressure holding section includes several pressure holding steps, which are correspondingly disposed to the loading steps. The pressure holding step at the top of the pressure holding section is connected to the pushing section.

2. The pusher mechanism according to claim 1, characterized in that: A clearance groove is provided between two adjacent material loading steps in the stepped section and between two adjacent pressure holding steps in the pressure holding section.

3. The pusher mechanism according to claim 1, characterized in that: The number of the loading steps and the pressure holding steps is set to be greater than or equal to the number of stacked material sheets.

4. The pusher mechanism according to claim 1, characterized in that: It also includes a lifting component, the drive end of which is connected to the material loading component, and the lifting component drives the material loading component to move up and down relative to the pushing component.

5. The pusher mechanism according to claim 1, characterized in that: It also includes a drive component: the drive end of the drive component is connected to the pusher component, and the drive component drives the pusher component to push the sheet onto the loading step.

6. The pusher mechanism according to claim 5, characterized in that: The support surfaces of the multiple material-carrying steps have the same width, and the pressure-holding surfaces of the multiple pressure-holding steps have the same width.

7. A method for stacking sheets, employing the sheet-pushing mechanism described in claims 1 to 6, characterized in that: Includes the following steps: S1. Prepare an upright stacked structure and place the upright stacked structure on the material carrier. S2. Set up the pushing part, first push the bottommost piece of the vertical stacked structure against the stepped part to position the vertical stacked structure, and then push each layer of the material piece onto the loading step step by step, starting from the second layer of the vertical stacked structure, until the topmost piece of the material piece is pushed onto the loading step to form a stepped stacked structure. S3. The pressure-holding part is configured to cooperate with the stepped part to achieve pressure-holding treatment of the stepped laminate structure.

8. The stacking method according to claim 7, characterized in that: In step S1, multiple sheets are stacked one by one in the same direction to ensure that the upper sheet completely covers the lower sheet. Adhesive is applied and pressed between adjacent sheets, and adhesive is wiped off the outer periphery of the stacked vertical sheet structure.

9. The lamination forming method according to claim 7, characterized in that: In step S2, the distance that the lifting component moves the material-carrying component each time is set to the height of the material-carrying step. After the lifting component moves the material-carrying component once, the pushing component completes one pushing action. The distance that the driving component moves the pushing component each time is set to the width of the material-carrying step.

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