Tray lifting mechanism

By designing a pallet lifting mechanism, the problem of low pallet conveying efficiency in the automated processing of mobile phone frames was solved. It realizes automated pallet conveying and stable support, improves transportation efficiency and safety, and adapts to the rapid picking and placing of pallets of different specifications.

CN223963199UActive Publication Date: 2026-03-03QINGDAO HAIDING COMM TECH CO LTD
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Patent Information

Application Number
CN202520822281.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-03
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

Existing technologies lack pallet conveying equipment capable of automating the handling of mobile phone frames, especially in mass production, where traditional manual placement methods are inefficient and prone to human error.

Method used

A pallet lifting mechanism was designed, including a main frame, a lifting component, and a support component. The mechanism achieves automated pallet delivery and stable support through a lifting drive component and a tilting drive component, and is adaptable to the rapid handling of pallets of different sizes.

Benefits of technology

It achieves improved pallet conveying efficiency, stability, and safety, adapts to the rapid handling of pallets of different specifications, enhances the stability and efficiency of pallet transportation, accommodates pallets of different models and sizes, and supports the gripping of materials within the pallet.

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Abstract

The utility model discloses a tray lifting mechanism, which relates to the technical field of cleaning, and adopts the technical scheme that the tray lifting mechanism comprises a main frame body of a rectangular frame; the lifting assembly can ascend or descend along the main frame body; and the supporting assemblies are arranged at the top of the main frame body, the supporting assemblies are symmetrically arranged on the two sides of the main frame body correspondingly, and the supporting assemblies can support the tray on the uppermost layer. The tray lifting mechanism has the advantages that the tray conveying efficiency and stability are improved by the aid of the tray lifting mechanism. The lifting assemblies synchronously ascending and descending on the two sides are matched with the rotatable lifting pieces, so that the tray transportation stability is guaranteed, trays of different specifications can be rapidly taken and placed, and switching of the working states of the lifting assemblies is achieved in a small space. The tray on the uppermost layer can be supported and fixed through the supporting assembly, and grabbing mechanisms such as mechanical arms of external equipment can grab materials in the trays conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, specifically a pallet lifting mechanism. Background Technology

[0002] In the mobile phone manufacturing industry, the mid-frame is a crucial component of the phone, and its processing, assembly, and testing require extremely high precision and efficiency. Traditionally, the mid-frame is manually placed in designated positions before further processing. However, this method is not only inefficient but also prone to human error, affecting product quality. Therefore, for large-scale industrial processing of mid-frames, traditional manual placement is insufficient to meet production demands, necessitating the use of trays for automated, large-volume transport of mobile phone mid-frames.

[0003] Currently, there is a lack of automated processing equipment on the market that can be applied to the mid-frame of mobile phones. Although existing conveying equipment can use AGV carts to transport stacked pallets, there is no related mechanism for receiving and secondary conveying. Utility Model Content

[0004] To address one of the shortcomings of existing technologies, this utility model provides a pallet lifting mechanism to solve the problem of pallet lifting and conveying.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pallet lifting mechanism, comprising:

[0006] The main frame is a rectangular frame with a feed inlet on the lower horizontal side and a discharge outlet at the upper end.

[0007] The lifting assembly is slidably connected to the main frame. A set of lifting assemblies is symmetrically arranged on both sides of the main frame. The lifting assembly can rise or fall along the main frame.

[0008] A support assembly is provided on the top of the main frame. A set of support assemblies is symmetrically provided on both sides of the main frame. The support assembly can support the uppermost tray.

[0009] The lifting component includes:

[0010] The lifting component can rotate in a horizontal or vertical direction. When the lifting component is in a horizontal position, it can extend under the tray.

[0011] Preferably, the main frame includes:

[0012] The guide frame is a vertically extending frame, and the lifting assembly and the guide frame are slidably connected;

[0013] A fixed frame is fixedly installed at the upper and lower ends of the guide frame; the support assembly is installed on the upper side of the fixed frame located at the upper end;

[0014] The lifting drive component, which is linked to the lifting component, can drive the lifting component to rise or fall along the guide frame.

[0015] Preferably, the lifting drive assembly includes:

[0016] The drive rod is a vertically arranged lead screw, with its upper and lower ends rotatably connected to the fixed frame; there are two drive rods, each linked to one of the lifting components;

[0017] There is one motor, which is linked to the two drive rods via a combination of a synchronous belt and a synchronous pulley.

[0018] Preferably, the lifting assembly further includes:

[0019] The lifting frame is a horizontally set frame. The lifting frame and the main frame are slidably connected, and the lifting frame and the drive rod are threadedly connected.

[0020] A lifting frame is fixedly mounted on the lifting frame, and the lifting component is rotatably connected to the upper end of the lifting frame.

[0021] The fixed frame has a through slot corresponding to the lifting frame. When the lifting frame rises, the lifting frame can extend to the top of the fixed frame through the slot on the fixed frame.

[0022] Preferably, the lifting assembly further includes:

[0023] A flip drive assembly, capable of driving the lifting member to rotate, includes:

[0024] The flipping drive is fixedly mounted on the fixed frame. The flipping motor and the lifting component are linked, which can drive the lifting component to rotate.

[0025] Preferably, the tilting drive is a pneumatic, hydraulic, or electric cylinder; the tilting drive assembly further includes:

[0026] A flip gear is fixedly installed at one end of the lifting member, and the flip gear is rotatably connected to the lifting frame;

[0027] The rack is flipped and linked with the flipping drive, and the rack and the gear are engaged.

[0028] Preferably, the support component includes:

[0029] The support includes a horizontally arranged support plate, and a vertical limiting plate is provided on the upper side of the support plate.

[0030] The support drive component is fixedly installed on the upper side of the fixed frame. The support drive component and the support component are linked together, which can drive the support component to move in the horizontal direction.

[0031] Preferably, the support drive component is a pneumatic, hydraulic, or electric cylinder; at least two support components are provided on each side of the main frame, and one support drive component is provided on each side of the main frame;

[0032] The support components also include:

[0033] The connecting frame is fixedly connected to the movable end of the support drive member on one side, and connected to all the support members located on the same side on the other side.

[0034] Preferably, the support component further includes:

[0035] An adjusting component is disposed between the connecting frame and the supporting component; the adjusting component is a "7"-shaped plate; a first adjusting groove in the vertical direction is provided on the vertical part of the adjusting component, and the connecting frame is connected to the adjusting component through the first adjusting groove.

[0036] Preferably, the support member or adjusting member has a second adjusting groove extending in a horizontal direction, and the support member and the adjusting member are connected through the second adjusting groove.

[0037] Compared with existing technologies, this solution offers the following advantages: The pallet lifting mechanism achieves a dual improvement in pallet conveying efficiency and stability. The dual-sided synchronous lifting assembly, combined with a rotatable lifting component, ensures stable pallet transport while accommodating the rapid loading and unloading of pallets of different sizes, enabling seamless switching of the lifting assembly's operating state within a confined space. The support assembly provides support and fixation for the top pallet, facilitating the gripping of materials from external equipment such as robotic arms. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 1 ;

[0039] Figure 2 for Figure 1 A magnified view of part A;

[0040] Figure 3 for Figure 1 A magnified view of part B;

[0041] Figure 4 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 2 :

[0042] Figure 5 for Figure 4 A magnified view of part A;

[0043] Figure 6 This is a front view of an embodiment of this application;

[0044] Figure 7 This is a right view of an embodiment of this application.

[0045] In the picture:

[0046] 1. Main frame; 11. Guide frame; 12. Fixing frame; 13. Drive rod; 14. Motor; 2. Lifting assembly; 21. Lifting component; 22. Lifting frame; 23. Lifting frame; 24. Tilting drive component; 3. Support assembly; 31. Support component; 32. Support drive component; 33. Connecting frame; 34. Adjusting component. Detailed Implementation

[0047] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] Please see Figures 1-7 This application provides the following technical solutions:

[0049] A pallet lifting mechanism includes a main frame 1, which is generally rectangular in shape. The lower horizontal side of the main frame 1 has a feed inlet, and the upper end has a discharge outlet. Figure 6 Taking the direction as an example, the front side of the main frame 1 is the feeding side; Figure 7 Taking the direction as an example, the left side of the main frame 1 is the feeding side. A lifting assembly 2 is slidably connected to the main frame 1. A set of lifting assemblies 2 is symmetrically arranged on each side of the main frame 1. The lifting assembly 2 can rise or fall along the main frame 1. The lifting assembly 2 includes a lifting member 21, which can rotate horizontally or vertically. When the lifting member 21 is in a horizontal state, it can extend under the tray 100. A support assembly 3 is provided at the top of the main frame 1. A set of support assemblies 3 is symmetrically arranged on each side of the main frame 1. The support assembly 3 can support the uppermost tray 100.

[0050] Considering that multiple trays 100 carrying mobile phone frames will be stacked vertically when using tray 100, this solution combines lifting component 2 and support component 3 to perform tray lifting functions. Lifting component 2 lifts the stacked trays 100 as a whole, and then support component 3 supports and maintains the top single tray 100, waiting for the robotic arm to grab the mobile phone frame within the tray 100. After the mobile phone frame in the top tray 100 is removed, that tray 100 is removed, and then lifting component 2 pushes all trays upwards by a distance unit. Support component 3 then fixes the top tray 100, and the robotic arm continues to grab the mobile phone frame. After all trays 100 are removed, new trays are stacked under the main frame 1, lifting component 21 flips to a vertical position, and lifting component 2 lowers as a whole to avoid interference between lifting component 21 and the trays 100. The lifting component 2 moves to the underside of all the pallets, and then the lifting component 21 rotates to a horizontal position, which can lift the stacked pallets.

[0051] Based on the above implementation scheme, the main frame 1 includes a guide frame 11 and a fixed frame 12. The guide frame 11 is a vertically extending frame, and the lifting assembly 2 is slidably connected to the guide frame 11. The fixed frame 12 is fixedly installed at the upper and lower ends of the guide frame 11; the support assembly 3 is installed on the upper side of the fixed frame 12 located at the upper end.

[0052] The fixed frame 12 is a horizontally arranged plate structure, and the guide frame 11 includes four vertical guide rods, which are fixedly connected to the fixed frame 12. A lifting drive assembly is provided on the lower side of the guide frame 11. The lifting drive assembly and the lifting assembly 2 are linked, which can drive the lifting assembly 2 to rise or fall along the guide frame 11.

[0053] This solution provides a specific structural form of a lifting drive assembly, which includes a drive rod 13 and a motor 14. The drive rod 13 is a vertically arranged lead screw, positioned between two adjacent guide rods. The upper and lower ends of the drive rod 13 are rotatably connected to the fixed frame 12, respectively. Two drive rods 13 are provided, each linked to a lifting assembly 2. A motor 14 is fixedly mounted on the base plate at the bottom of the main frame 1, and is linked to the two drive rods 13 via a combination of a synchronous belt and a synchronous pulley. The motor shaft of the motor 14 is coaxially fixedly connected to a pulley. A pulley is coaxially fixedly connected to the bottom end of each of the two drive rods 13. Two tensioning pulleys are rotatably mounted on the base plate, positioned on either side of the motor 14, forming a belt... Figure 4 The surrounding structure shown achieves the effect of synchronously driving the lifting assembly 2 by a motor 14.

[0054] Based on the above implementation plan, see Figure 2The lifting assembly 2 also includes a lifting frame 22, which is a horizontally arranged frame. The two sides of the lifting frame 22 are slidably connected to the guide frame 11 of the main frame 1, and the lifting frame 22 is threadedly connected to the drive rod 13. A lifting frame 23 is fixedly mounted on the lifting frame 22, and the lifting component 21 is rotatably connected to the upper end of the lifting frame 23.

[0055] The fixed frame 12 has a through slot corresponding to the lifting frame 23. When the lifting frame 22 moves to the upper part of the fixed frame 12, the lifting frame 23 can extend above the fixed frame 12 through the slot. The support assembly 3 is fixedly installed on the upper side of the fixed frame 12.

[0056] Because of the support position of the support component 3 on the tray 100, the lifting height of the lifting component 2 can be extended above the fixed frame 12, so that it can work more perfectly in alternation with the support component 3.

[0057] Based on the above implementation scheme, the lifting assembly 2 also includes a flipping drive assembly, which drives the lifting member 21 to rotate. The flipping drive assembly includes a flipping drive component 24, which is fixedly mounted on the fixed frame 12. The flipping motor 24 is linked to the lifting member 21 and can drive the lifting member 21 to rotate. The flipping drive component 24 is a cylinder. A flipping gear 25 is fixedly connected to one end of the lifting member 21, and the flipping gear 25 is rotatably connected to the lifting frame 23. A flipping rack 26 is provided on the lower side of the flipping gear 25, and the flipping rack 26 meshes with the flipping gear 25 and is linked with the flipping drive component 24. Two flipping drive components 24 are provided on the same lifting frame 22 on the same side of the main frame 1. The movable ends of the two flipping drive components 24 are fixedly connected to a push plate, and the two flipping racks 26 corresponding to the two flipping members 21 on the same side are fixedly connected to this push plate.

[0058] Considering the stability and safety of lifting the pallet 100, two flipping drive components 24, i.e. two cylinders, are used as the driving power for the two lifting components 21 on the same side. Figure 2 The image shown depicts the lifting component 21 in a horizontal position. Figure 3 The lifting component 21 is shown in a vertical position. It should be noted that... Figure 2 and Figure 3 For ease of demonstration, the lifting components 21 are positioned in different directions. In actual use, the lifting components 21 on both sides maintain the same direction while working.

[0059] Based on the above implementation plan, see Figure 5The support assembly 3 includes a support member 31, which includes a horizontally arranged support plate. A vertical limiting plate is provided on the upper side of the support plate. A support drive member 32 is fixedly arranged on the upper side of the fixing frame 12. The support drive member 32 and the support member 31 are linked. The support drive member 32 is a cylinder that can drive the support member 31 to move in the horizontal direction.

[0060] This type of support member 31 provides vertical support to the bottom edge of the tray 100 via its support plate, and horizontal clamping force via the limiting plate. This prevents the tray 100 from shifting due to force when the robotic arm retrieves the phone frame inside the tray 100.

[0061] Based on the above implementation scheme, two support members 31 are provided on each side of the main frame 1, and one support drive member 32 is provided on each side of the main frame 1. A connecting frame 33 and an adjusting member 34 are provided between the support members 31 and the support drive member 32. One side of the connecting frame 33 is fixedly connected to the movable end of the support drive member 32, and the other side is connected to all the support members 31 located on the same side through the adjusting member. The adjusting member 34 is a "7"-shaped plate; a first vertical adjustment groove is opened on the vertical part of the adjusting member 34, and a bolt is provided at the end of the connecting frame 33. The adjusting member 34 is connected to the adjusting member 34 through the first adjustment groove and the bolt, so as to realize the vertical adjustment of the adjusting member 34. A second horizontally extending adjustment groove is opened on the support plate of the support member 31, and a threaded hole is provided on the adjusting member 34. The adjusting member 34 is connected to the support member 31 through the bolt and the first adjustment groove, so as to realize the horizontal adjustment of the support member 31. By using the first adjustment groove and the second adjustment groove to realize vertical and horizontal adjustment, the adaptability of pallets 100 of different sizes can be improved.

[0062] It should be noted that the pallet 100 in this solution is used for mobile phone mid-frames, but this pallet lifting mechanism is not only applicable to mobile phone mid-frame pallets. As long as the size and load-bearing capacity requirements of the main frame 1, lifting component 2 and support component 3 are met, most pallets can be used in conjunction with it.

[0063] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0064] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0067] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0068] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A pallet lifting mechanism, characterized in that, include: The main frame is a rectangular frame with a feed inlet on the lower horizontal side and a discharge outlet at the upper end. The lifting assembly is slidably connected to the main frame. A set of lifting assemblies is symmetrically arranged on both sides of the main frame. The lifting assembly can rise or fall along the main frame. A support assembly is provided on the top of the main frame. A set of support assemblies is symmetrically provided on both sides of the main frame. The support assembly can support the uppermost tray. The lifting component includes: The lifting component can rotate in a horizontal or vertical direction. When the lifting component is in a horizontal position, it can extend under the tray.

2. The pallet lifting mechanism as described in claim 1, characterized in that, The main frame includes: The guide frame is a vertically extending frame, and the lifting assembly and the guide frame are slidably connected; A fixed frame is fixedly installed at the upper and lower ends of the guide frame; the support assembly is installed on the upper side of the fixed frame located at the upper end; The lifting drive component, which is linked to the lifting component, can drive the lifting component to rise or fall along the guide frame.

3. The pallet lifting mechanism as described in claim 2, characterized in that, The lifting drive component includes: The drive rod is a vertically arranged lead screw, with its upper and lower ends rotatably connected to the fixed frame; there are two drive rods, each linked to one of the lifting components; There is one motor, which is linked to the two drive rods via a combination of a synchronous belt and a synchronous pulley.

4. The pallet lifting mechanism as described in claim 3, characterized in that, The lifting component also includes: The lifting frame is a horizontally set frame. The lifting frame and the main frame are slidably connected, and the lifting frame and the drive rod are threadedly connected. A lifting frame is fixedly mounted on the lifting frame, and the lifting component is rotatably connected to the upper end of the lifting frame. The fixed frame has a through slot corresponding to the lifting frame. When the lifting frame rises, the lifting frame can extend to the top of the fixed frame through the slot on the fixed frame.

5. The pallet lifting mechanism as described in claim 4, characterized in that, The lifting component also includes: A flip drive assembly, capable of driving the lifting member to rotate, includes: The flipping drive is fixedly mounted on the fixed frame. The flipping motor and the lifting component are linked, which can drive the lifting component to rotate.

6. The pallet lifting mechanism as described in claim 5, characterized in that, The tilting drive component is a pneumatic, hydraulic, or electric cylinder; the tilting drive assembly also includes: A flip gear is fixedly installed at one end of the lifting member, and the flip gear is rotatably connected to the lifting frame; The rack is flipped and linked with the flipping drive, and the rack and the gear are engaged.

7. The pallet lifting mechanism as described in claim 2, characterized in that, The support components include: The support includes a horizontally arranged support plate, and a vertical limiting plate is provided on the upper side of the support plate. The support drive component is fixedly installed on the upper side of the fixed frame. The support drive component and the support component are linked together, which can drive the support component to move in the horizontal direction.

8. The pallet lifting mechanism as described in claim 7, characterized in that, The support drive component is a pneumatic, hydraulic, or electric cylinder; at least two support components are provided on each side of the main frame, and one support drive component is provided on each side of the main frame; The support components also include: The connecting frame is fixedly connected to the movable end of the support drive member on one side, and connected to all the support members located on the same side on the other side.

9. The pallet lifting mechanism as described in claim 8, characterized in that, The support components also include: An adjusting component is disposed between the connecting frame and the supporting component; the adjusting component is a "7"-shaped plate; a first adjusting groove in the vertical direction is provided on the vertical part of the adjusting component, and the connecting frame is connected to the adjusting component through the first adjusting groove.

10. The pallet lifting mechanism as described in claim 9, characterized in that, The support or adjusting member has a second adjusting groove extending horizontally, and the support and adjusting member are connected through the second adjusting groove.