A multifunctional material taking device

Abstract

The utility model belongs to taking material equipment technical field especially relates to a kind of multifunctional taking material device.It includes sucking disc piece, sucking disc piece has the closed negative pressure cavity, the cavity wall of negative pressure cavity is equipped with the suction port for adsorbing material and the suction port for connecting outside suction device, and suction port and suction port are communicated with negative pressure cavity;Needle plate piece is set in the negative pressure cavity of sucking disc piece, and needle plate piece is equipped with the needle for puncturing material;The power output end of needle plate power mechanism is inserted into the negative pressure cavity of sucking disc piece, and is driven to connect with needle plate piece;Wherein, needle plate power mechanism drives needle plate piece to move in negative pressure cavity, to make needle have first state and second state;First state, needle is retracted to within suction port;Second state, needle is extended and passes through the suction port.The multifunctional taking material device, by integrating negative pressure adsorption and puncture grabbing function in the same device, constructs dual-mode compatible taking material structure, expands the use range of device.

Description

Technical Field

[0001] This utility model belongs to the technical field of material handling equipment, and in particular relates to a multifunctional material handling device. Background Technology

[0002] In automated production processes, material gripping and transfer typically employs pin-plate robotic arms or vacuum suction cup gripping devices, with pin-plate and suction cup gripping systems typically set up separately. However, these technologies have the following limitations:

[0003] Vacuum suction cup gripping devices rely on atmospheric pressure for adsorption. They are only suitable for materials with flat surfaces, large areas, and good airtightness (such as glass and metal plates). They cannot effectively adsorb porous, breathable, or small-sized materials (such as mesh and fiber materials), and the materials are prone to falling off. At the same time, they cannot grip materials with easily deformable or soft surfaces (such as films and non-woven fabrics), as negative pressure adsorption may cause the materials to wrinkle or break.

[0004] Needle-plate robotic arms rely on needles to pierce and fix materials, which leaves needle holes on the material surface and affects the product's appearance (such as high-end textiles and leather products); while for materials with smooth surfaces and low coefficient of friction, the needles cannot provide sufficient gripping force, which can easily cause the material to fall off.

[0005] As the manufacturing industry continues to demand higher precision, versatility, and non-destructive handling of materials, traditional, single-method grasping can no longer meet diverse production needs.

[0006] Based on this, the present invention provides a novel multifunctional material handling device to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this utility model is to provide a multi-functional material handling device. This multi-functional material handling device integrates negative pressure adsorption and puncture gripping functions into the same device, constructing a dual-mode compatible material handling structure and expanding the application range of the device.

[0008] This utility model adopts the following technical solution: a multifunctional material handling device, comprising:

[0009] A suction cup component, wherein the suction cup component has a sealed negative pressure chamber, and the chamber wall of the negative pressure chamber is provided with an adsorption port for adsorbing materials and an air extraction port for connecting an external suction device, and both the adsorption port and the air extraction port are connected to the negative pressure chamber.

[0010] A needle plate is disposed within the negative pressure chamber of the suction cup component, and the needle plate is provided with a needle for piercing materials.

[0011] A needle plate power mechanism, wherein the power output end of the needle plate power mechanism extends into the negative pressure cavity of the suction cup component and is drivenly connected to the needle plate component; wherein the needle plate power mechanism drives the needle plate component to move within the negative pressure cavity, so that the insertion needle has a first state and a second state;

[0012] In the first state, the insert retracts into the suction port;

[0013] In the second state, the pin extends and passes through the suction port.

[0014] Furthermore, the multifunctional material handling device also includes a limiting mechanism, which is used to limit the moving distance of the needle plate.

[0015] Furthermore, the needle plate power mechanism includes a lifting cylinder, which is fixedly mounted on the suction cup component, and the extension and retraction end of the lifting cylinder is drivenly connected to the needle plate component.

[0016] Furthermore, the needle plate power mechanism is provided in two sets, and the two sets of needle plate power mechanisms are arranged at intervals;

[0017] Each set of needle plate power mechanisms includes:

[0018] Two synchronously driven lifting cylinders;

[0019] A lifting crossbar, the two ends of which are respectively connected to the extension and retraction ends of the two lifting cylinders;

[0020] Two sets of lifting guide rod assemblies are respectively disposed at both ends of the lifting crossbar; each set of lifting guide rod assemblies includes a lifting guide rod and a linear bearing component; wherein, the top end of the lifting guide rod is connected to the lifting crossbar, the bottom end of the lifting crossbar extends into the negative pressure cavity of the suction cup component and is fixedly connected to the needle plate component; the linear bearing component is fixedly installed on the suction cup component, and the lifting guide rod is vertically inserted into the linear bearing component and forms a sliding fit with it;

[0021] The lifting cylinder drives the lifting crossbar to rise and fall, and the lifting guide rod drives the needle plate to move within the negative pressure chamber.

[0022] Furthermore, the limiting mechanism includes:

[0023] The first limiting block is fixedly installed at the bottom of the lifting crossbar;

[0024] The second limiting block is installed on the suction cup component and is positioned opposite to the first limiting block;

[0025] When the lifting crossbar moves downward to its limit position, the first limiting block abuts against the upper surface of the second limiting block to restrict the downward displacement.

[0026] Furthermore, the second limiting block is provided with a strip-shaped adjustment hole, and a locking member is provided at the strip-shaped adjustment hole. The locking member passes through the strip-shaped adjustment hole and locks the second limiting block onto the suction cup.

[0027] Furthermore, the limiting mechanism includes:

[0028] A support frame is mounted on the suction cup component;

[0029] A belt drive assembly is mounted on the support frame and has four drive pulleys. Each of the four drive pulleys is connected to a lead screw shaft, and a lead screw nut is fitted onto each lead screw shaft. The lead screw nuts are divided into two groups, and the two lead screw nuts in each group are connected by a crossbar to form a limiting assembly. The limiting assembly is located below the lifting crossbar and is used to limit the downward displacement of the lifting crossbar.

[0030] A limiting power component is mounted on the suction cup component and is drivenly connected to the belt drive assembly.

[0031] Furthermore, the two sets of limiting components are arranged in parallel and spaced apart, and the extension direction of the limiting components is perpendicular to the length direction of the lifting crossbar.

[0032] Furthermore, a guide rod is fixedly installed inside the negative pressure cavity of the suction cup component, and the extension direction of the guide rod is set along the moving direction of the needle plate component;

[0033] The needle plate is slidably sleeved on the guide rod and forms a sliding fit with the guide rod, so that the needle plate can move along the axial direction of the guide rod.

[0034] Furthermore, the suction port is located at the bottom of the suction cup component, and the air extraction port is located at the top of the suction cup component; four air extraction ports are provided, respectively located at the four corners of the suction cup component.

[0035] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0036] This multifunctional material handling device integrates negative pressure adsorption and piercing gripping functions into a single device, creating a dual-mode compatible material handling structure and expanding the device's application range. The sealed negative pressure chamber, adsorption port, and air extraction port of the suction cup component form a negative pressure adsorption system, enabling non-destructive adsorption of materials with smooth surfaces. The needle plate component is built into the negative pressure chamber, and its needles can be extended and retracted under the drive of the needle plate power mechanism: in the first state, the needles are completely hidden inside the adsorption port to avoid interfering with the negative pressure adsorption process and to prevent the needles from accidentally piercing the material; in the second state, the needles extend through the adsorption port to form a mechanical gripping of the material that needs to be pierced and fixed. This dynamic switching mechanism allows the same device to handle both smooth and flat materials and grip porous or low-friction materials, breaking through the limitations of traditional single material handling methods.

[0037] In addition, the needle plate power mechanism acts directly on the needle plate inside the negative pressure chamber, ensuring seamless switching between the two working modes by precisely controlling the extension and retraction stroke of the needle; while the adsorption port serves as both a negative pressure adsorption channel and a needle extension and retraction channel, realizing efficient reuse of structural space. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of the multifunctional material handling device according to a specific embodiment of this utility model. Figure 1 ;

[0040] Figure 2 for Figure 1 Images displayed from different angles;

[0041] Figure 3 This is a schematic diagram of the overall structure of the multifunctional material handling device according to a specific embodiment of this utility model. Figure 2 ;

[0042] The components include: suction cup 1, negative pressure chamber 10, suction port 11, and air extraction port 12; needle plate 2 and insertion needle 20; needle plate power mechanism 3, lifting cylinder 30, lifting crossbar 31, lifting guide rod assembly 32, lifting guide rod 321, and linear bearing 322; limiting mechanism 4, first limiting block 40, second limiting block 41, strip-shaped adjustment hole 411, locking component 412, support frame 42, belt drive assembly 43, drive wheel 431, lead screw shaft 432, lead screw nut 433, crossbar 434, tension wheel 435, limiting power component 44, and drive wheel 441; and guide rod 5. Detailed Implementation

[0043] 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.

[0044] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 The present invention will be described in detail with reference to specific embodiments:

[0045] like Figures 1 to 3 As shown, this utility model provides a multifunctional material handling device, which includes:

[0046] The suction cup component 1 has a sealed negative pressure chamber 10. The chamber wall of the negative pressure chamber 10 has an adsorption port 11 for adsorbing materials and an air extraction port 12 for connecting to an external suction device. Both the adsorption port 11 and the air extraction port 12 are connected to the negative pressure chamber 10. In this embodiment, the adsorption port 11 is located at the bottom of the suction cup component 1, and the air extraction port 12 is located at the top of the suction cup component 1. The adsorption ports 11 are arranged regularly, with the same number as the number of pins 20, and their positions are opposite to each other. Only four air extraction ports 12 are provided, located at the four corners of the suction cup component 1, forming a symmetrical suction path within the negative pressure chamber 10, thus promoting a uniform distribution of negative pressure at the adsorption ports 11.

[0047] Needle plate 2 is disposed in the negative pressure chamber 10 of suction cup 1, and needle 20 for piercing material is provided on needle plate 2; In this utility model, the specific structure of needle plate 2 and needle 20 is not limited, and can be designed and selected by those skilled in the art according to the actual situation.

[0048] The needle plate power mechanism 3 has its power output end extending into the negative pressure cavity 10 of the suction cup component 1 and being drivenly connected to the needle plate component 2; wherein the needle plate power mechanism 3 drives the needle plate component 2 to move within the negative pressure cavity 10, so that the insertion needle 20 has a first state and a second state.

[0049] In the first state, the insertion pin 20 retracts into the adsorption port 11. At this time, the insertion pin 20 is completely retracted into the adsorption port 11. The external suction device can be activated to evacuate the negative pressure chamber 10 through the air extraction port 12, forming a negative pressure at the adsorption port 11 to achieve pure vacuum adsorption of the material, i.e., negative pressure adsorption mode.

[0050] In the second state, the needle 20 extends and passes through the adsorption port 11. The needle plate power mechanism 3 pushes the needle plate 2 to move towards the adsorption port 11, so that the needle 20 penetrates the adsorption port 11 and pierces into the material, realizing needle plate gripping of the material. Of course, negative pressure can be maintained at the air extraction port 12 at the same time. The gripping force is enhanced by the combined effect of the mechanical fixation of the needle 20 and the negative pressure adsorption.

[0051] It should be noted that the power output end of the needle plate power mechanism 3 needs to extend into the negative pressure chamber 10 of the suction cup component 1 and be driven to connect with the needle plate component 2. Ensuring the sealing of the connection between the needle plate power mechanism 3 and the suction cup component 1 is a conventional technical means in the field. For example, sealing rings or other forms can be used to ensure airtightness. This utility model does not make specific limitations.

[0052] This multifunctional material handling device integrates negative pressure adsorption and piercing gripping functions into a single device, creating a dual-mode compatible material handling structure and expanding the device's application range. The sealed negative pressure chamber 10 of the suction cup component 1, along with the adsorption port 11 and the air extraction port 12, forms a negative pressure adsorption system, enabling non-destructive adsorption of materials with smooth surfaces. The needle plate component 2 is built into the negative pressure chamber 10, and its needle 20 can be telescopically switched under the drive of the needle plate power mechanism 3: in the first state, the needle 20 is completely hidden inside the adsorption port 11, avoiding interference with the negative pressure adsorption process and preventing the needle 20 from accidentally piercing the material; in the second state, the needle 20 extends through the adsorption port 11, forming a mechanical gripping of the material that needs to be pierced and fixed. This dynamic switching mechanism allows the same device to handle both smooth and flat materials and grip porous or low-friction materials, breaking through the limitations of traditional single material handling methods.

[0053] In addition, the needle plate power mechanism 3 directly acts on the needle plate component 2 inside the negative pressure chamber 10, and ensures seamless switching between the two working modes by precisely controlling the extension and retraction stroke of the insertion needle 20; while the adsorption port 11 serves as both a vacuum adsorption channel and an extension and retraction channel for the insertion needle 20, realizing efficient reuse of structural space.

[0054] Furthermore, in some specific embodiments, the multifunctional material handling device also includes a limiting mechanism 4, which is used to limit the movement distance of the needle plate 2. The limiting mechanism 4 can prevent the needle 20 from piercing too deeply or being poorly adsorbed, thus improving the stability and applicability of the material handling device. The limiting mechanism 4 acts on the movement path of the needle plate 2. On the one hand, it can prevent the needle 20 from extending excessively beyond the adsorption port 11 due to excessive drive of the power mechanism 3, thus avoiding damage to the material due to the piercing depth exceeding the material's tolerance range. On the other hand, it can also prevent insufficient retraction of the needle plate 2, resulting in the needle not fully retracting into the adsorption port, thereby affecting the reliability of the suction cup 1 adsorbing material through negative pressure. Through the limiting method, the accuracy of the needle 20's state switching is ensured, and the adaptability of the device to materials of different thicknesses and hardnesses is enhanced.

[0055] Furthermore, in some specific embodiments, the needle plate power mechanism 3 can be driven by a linear motor, a cylinder, or other methods. In this embodiment, the needle plate power mechanism 3 includes a lifting cylinder 30, which is fixedly mounted on the suction cup component 1. The telescopic end of the lifting cylinder 30 is drivenly connected to the needle plate component 2. Compared with traditional electric or hydraulic drives, pneumatic drive has the advantages of compact structure, fast response speed, and low maintenance cost, and is particularly suitable for automated production scenarios that require high-frequency state switching.

[0056] Specifically, two sets of needle plate power mechanisms 3 are provided, and the two sets of needle plate power mechanisms 3 are arranged at intervals. Each set of needle plate power mechanisms 3 includes:

[0057] Two synchronously driven lifting cylinders 30;

[0058] A lifting crossbar 31, the two ends of which are respectively connected to the telescopic ends of the two lifting cylinders 30;

[0059] Two sets of lifting guide rod assemblies 32 are respectively disposed at both ends of the lifting crossbar 31; each set of lifting guide rod assembly 32 includes a lifting guide rod 321 and a linear bearing component 322; wherein, the top end of the lifting guide rod 321 is connected to the lifting crossbar 31, the bottom end of the lifting crossbar 31 extends into the negative pressure cavity 10 of the suction cup component 1, and is fixedly connected to the needle plate component 2; the linear bearing component 322 is fixedly installed on the suction cup component 1, and the lifting guide rod 321 is vertically inserted into the linear bearing component 322 and forms a sliding fit with it.

[0060] During operation, the two synchronously driven lifting cylinders 30 start simultaneously, driving the lifting crossbar 31 to rise and fall, and driving the needle plate 2 to move within the negative pressure chamber 10 through the lifting guide rod 321.

[0061] In this embodiment, four lifting cylinders 30 are provided, which are respectively located at the four corners of the suction cup component 1; correspondingly, the lifting guide rods 321 are also respectively located at the four corners of the suction cup component 1.

[0062] By setting up two sets of spaced-apart needle plate power mechanisms 3, the multi-point driving capability of the needle plate component 2 is enhanced, avoiding the off-center load problem caused by single-point driving. Each set of needle plate power mechanisms 3 uses two synchronously driven lifting cylinders 30, which are connected to the extension and retraction ends of the lifting cylinders 30 at both ends through a lifting crossbar 31, forming a symmetrical driving structure to ensure the synchronicity of the lifting actions on both sides, thereby eliminating the risk of tilting when the needle plate component 2 moves.

[0063] Meanwhile, lifting guide rod assemblies 32 are respectively set at both ends of the lifting crossbar 31. Through the sliding cooperation between the lifting guide rod 321 and the linear bearing 322, the lifting crossbar 31 is provided with vertical guidance, which restricts its horizontal displacement and ensures that the needle plate 2 moves accurately along the preset path.

[0064] In addition, the linear bearing 322 is fixed to the suction cup 1, forming a constraint on the lifting guide rod 321, further reducing friction and shaking during the movement, and ensuring the vertical accuracy of the needle 20 when piercing the material.

[0065] Furthermore, in some specific embodiments, the limiting mechanism 4 can be implemented in various ways.

[0066] One implementation method, such as Figure 1 As shown: The limiting mechanism 4 includes:

[0067] The first limiting block 40 is fixedly installed at the bottom of the lifting crossbar 31;

[0068] The second limiting block 41 is installed on the suction cup 1 and is disposed opposite to the first limiting block 40;

[0069] When the lifting crossbar 31 moves downward to its limit position, the first limiting block 40 abuts against the upper surface of the second limiting block 41 to restrict the downward displacement. In use, the second limiting block 41 with different thicknesses can be pre-adjusted according to the thickness of the material or the gripping requirements to achieve precise restriction of the downward displacement.

[0070] When the lifting bar 31 moves downward, the contact between the first limiting block 40 and the second limiting block 41 forms a physical block, forcibly stopping the needle plate 2 from moving further downward, thereby ensuring that the extension length of the needle in the second state is precisely limited. This structure avoids the response delay or error accumulation problems that may exist in traditional sensors or electronic limits through rigid contact, while improving the reliability of the device through the simplicity of the mechanical structure. The installation position of the second limiting block 41 can be pre-adjusted according to the thickness of different materials or gripping requirements, so that the piercing depth of the needle 20 and the negative pressure range of the adsorption port 11 are controlled in a coordinated manner, preventing the needle 20 from over-penetrating and causing material damage, and avoiding insufficient gripping force due to the needle 20 not being fully extended.

[0071] Specifically, the second limiting block 41 has a strip-shaped adjustment hole 411, and a locking member 412 is provided at the strip-shaped adjustment hole 411. The locking member 412 passes through the strip-shaped adjustment hole 411 and locks the second limiting block 41 onto the suction cup member 1. It should be noted that in this embodiment, the locking member 412 can be a bolt, screw, or the like.

[0072] By providing a strip-shaped adjustment hole 411, the second limiting block 41 can be positioned along the extension direction of the strip-shaped adjustment hole 411, thereby changing the limit position of the needle plate 2's travel. A locking member 412 passes through the strip-shaped adjustment hole 411, and its tightening or loosening allows for temporary fixing or position adjustment of the second limiting block 41. The structural design of the strip-shaped adjustment hole 411 allows for continuous horizontal adjustment of the second limiting block 41, while the locking effect of the locking member 412 ensures a stable connection between the adjusted second limiting block 41 and the suction cup 1, preventing positional shift due to vibration or external force. This allows the travel of the needle plate 2 to be flexibly adjusted according to material characteristics or process requirements, solving the problem of fixed travel in traditional limiting mechanisms.

[0073] Another implementation method, such as Figure 3 As shown: The limiting mechanism 4 includes:

[0074] Support frame 42, which is mounted on the suction cup 1;

[0075] A belt drive assembly 43 is mounted on the support frame 42 and has four drive wheels 431. Each of the four drive wheels 431 is connected to a lead screw shaft 432, and a lead screw nut 433 is fitted onto each lead screw shaft 432. The lead screw nuts 433 are divided into two groups, and the two lead screw nuts 433 in each group are connected by a crossbar 434 to form a limiting assembly. The limiting assembly is located below the lifting crossbar 31 and is used to limit the downward displacement of the lifting crossbar 31.

[0076] A limiting power component 44 is mounted on the suction cup component 1 and is drivenly connected to the belt drive assembly 43. For example, a drive wheel 441 can be mounted on the output shaft of the limiting power component 44, and the drive wheel 441 and the transmission wheel 431 are connected by a belt on the belt drive assembly 43, thereby realizing the driving connection between the limiting power component 44 and the belt drive assembly 43.

[0077] Of course, a tensioning pulley 435 can also be installed at the belt drive assembly 43 to adjust the belt tension.

[0078] This invention solves the problem that traditional fixed limiting devices cannot adapt to diverse material thicknesses by constructing a multi-axis linkage mechanical limiting system. The belt drive assembly 43 ensures synchronous rotation of each lead screw shaft 432 through four drive wheels 431, avoiding misalignment of the limiting assembly caused by single-axis adjustment. The cooperation between each lead screw shaft 432 and its nut 433 converts rotational motion into linear displacement. Two sets of limiting assemblies connected by crossbars 434 work together to adjust the height, forming a limiting plane with multiple support points.

[0079] During operation, when the limiting power component 44 drives the belt transmission assembly 43, it can precisely control the lifting height of the two sets of limiting components, thereby dynamically adjusting the downward limit position of the lifting crossbar 31. This design can ensure precise control of the puncture depth of the needle plate 2, and also improve the limiting stability through multi-point support.

[0080] In this embodiment, the two sets of limiting components are arranged in parallel and spaced apart, and the extension direction of the limiting components is perpendicular to the length direction of the lifting crossbar 31, so that the limiting components and the lifting crossbar 31 form a grid-shaped structure arrangement, thereby improving the limiting stability.

[0081] Furthermore, in some specific embodiments, such as Figure 2 In step i, a guide rod 5 is fixedly installed inside the negative pressure cavity 10 of the suction cup component 1, and the extension direction of the guide rod 5 is set along the moving direction of the needle plate component 2. The needle plate component 2 is slidably sleeved on the guide rod 5 and forms a sliding fit with the guide rod 5 so that the needle plate component 2 can move along the axial direction of the guide rod 5.

[0082] The guide rod 5 is fixedly installed inside the negative pressure chamber 10 and extends in the same direction as the needle plate 2, providing a rigid linear motion reference for the needle plate 2 and preventing radial displacement during lifting and lowering. The design of the needle plate 2 sleeved on the guide rod 5 forms an axial sliding pair, which not only restricts the rotational freedom of the needle plate 2, but also reduces the frictional resistance of motion through sliding fit. This dual constraint mechanism ensures that the needle 20 always maintains a vertical movement trajectory when piercing the material, avoiding piercing position deviation or tearing of the material surface caused by the skewness of the needle plate 2. At the same time, the structure of the guide rod 5 enhances the stability of the needle plate 2 during high-speed movement, preventing vibration caused by inertia from affecting the grasping accuracy.

[0083] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A multifunctional material handling device, characterized in that: It includes: A suction cup component, wherein the suction cup component has a sealed negative pressure chamber, and the chamber wall of the negative pressure chamber is provided with an adsorption port for adsorbing materials and an air extraction port for connecting an external suction device, and both the adsorption port and the air extraction port are connected to the negative pressure chamber. A needle plate is disposed within the negative pressure chamber of the suction cup component, and the needle plate is provided with a needle for piercing materials. A needle plate power mechanism, wherein the power output end of the needle plate power mechanism extends into the negative pressure cavity of the suction cup component and is drivenly connected to the needle plate component; wherein the needle plate power mechanism drives the needle plate component to move within the negative pressure cavity, so that the insertion needle has a first state and a second state; In the first state, the insert retracts into the suction port; In the second state, the pin extends and passes through the suction port.

2. The multifunctional material handling device according to claim 1, characterized in that: The multi-functional material handling device also includes a limiting mechanism, which is used to limit the movement distance of the needle plate.

3. The multifunctional material handling device according to claim 2, characterized in that: The needle plate power mechanism includes a lifting cylinder, which is fixedly installed on the suction cup component, and the extension and retraction end of the lifting cylinder is drivenly connected to the needle plate component.

4. The multifunctional material handling device according to claim 3, characterized in that: The needle plate power mechanism is provided in two sets, and the two sets of needle plate power mechanisms are arranged at intervals. Each set of needle plate power mechanisms includes: Two synchronously driven lifting cylinders; A lifting crossbar, the two ends of which are respectively connected to the extension and retraction ends of the two lifting cylinders; Two sets of lifting guide rod assemblies are respectively disposed at both ends of the lifting crossbar; each set of lifting guide rod assemblies includes a lifting guide rod and a linear bearing component; wherein, the top end of the lifting guide rod is connected to the lifting crossbar, the bottom end of the lifting crossbar extends into the negative pressure cavity of the suction cup component and is fixedly connected to the needle plate component; the linear bearing component is fixedly installed on the suction cup component, and the lifting guide rod is vertically inserted into the linear bearing component and forms a sliding fit with it; The lifting cylinder drives the lifting crossbar to rise and fall, and the lifting guide rod drives the needle plate to move within the negative pressure chamber.

5. The multifunctional material handling device according to claim 4, characterized in that: The limiting mechanism includes: The first limiting block is fixedly installed at the bottom of the lifting crossbar; The second limiting block is installed on the suction cup component and is positioned opposite to the first limiting block; When the lifting crossbar moves downward to its limit position, the first limiting block abuts against the upper surface of the second limiting block to restrict the downward displacement.

6. The multifunctional material handling device according to claim 5, characterized in that: The second limiting block has a strip-shaped adjustment hole, and a locking member is provided at the strip-shaped adjustment hole. The locking member passes through the strip-shaped adjustment hole and locks the second limiting block onto the suction cup.

7. The multifunctional material handling device according to claim 4, characterized in that: The limiting mechanism includes: A support frame is mounted on the suction cup component; A belt drive assembly is mounted on the support frame and has four drive pulleys. Each of the four drive pulleys is connected to a lead screw shaft, and a lead screw nut is fitted onto each lead screw shaft. The lead screw nuts are divided into two groups, and the two lead screw nuts in each group are connected by a crossbar to form a limiting assembly. The limiting assembly is located below the lifting crossbar and is used to limit the downward displacement of the lifting crossbar. A limiting power component is mounted on the suction cup component and is drivenly connected to the belt drive assembly.

8. The multifunctional material handling device according to claim 7, characterized in that: The two sets of limiting components are arranged in parallel and spaced apart, and the extension direction of the limiting components is perpendicular to the length direction of the lifting crossbar.

9. The multifunctional material handling device according to claim 1, characterized in that: A guide rod is fixedly installed inside the negative pressure cavity of the suction cup component, and the extension direction of the guide rod is set along the moving direction of the needle plate component; The needle plate is slidably sleeved on the guide rod and forms a sliding fit with the guide rod, so that the needle plate can move along the axial direction of the guide rod.

10. The multifunctional material handling device according to claim 1, characterized in that: The suction port is located at the bottom of the suction cup component, and the air extraction port is located at the top of the suction cup component; four air extraction ports are provided, respectively located at the four corners of the suction cup component.

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