Negative pressure material taking device capable of rapidly stripping materials

Abstract

The utility model discloses a negative pressure material taking device capable of quickly stripping, which relates to the field of negative pressure transfer equipment, and comprises a vacuum seat, material taking needles and a stripping mechanism, a plurality of material taking needles are fixed at the bottom of the vacuum seat in an array mode and are communicated with an internal vacuum chamber, and the stripping mechanism comprises a stripping plate seat, a movable block and a stripping plate cover. A plurality of first through holes in one-to-one correspondence with the material taking needles are formed in the stripper plate base, the movable blocks are contained in the first through holes and can float in the radial direction, second through holes allowing the material taking needles to penetrate through are formed in the movable blocks, and the stripper plate cover is fixedly connected with the stripper plate base and provided with third through holes for limiting the movable blocks. The material taking needle sequentially penetrates through the first through hole, the second through hole and the third through hole, and the driving device drives the material stripping mechanism to move in the axial direction of the material taking needle, so that the material stripping mechanism pushes materials to fall off. By means of the radial floating design of the movable blocks, the position deviation of the material taking needles can be compensated in a self-adaptive mode, the problem that a multi-needle array is stuck during material stripping is effectively solved, and the material stripping reliability and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure transfer equipment, specifically to a negative pressure material handling device that can quickly remove materials. Background Technology

[0002] In automated production, negative pressure material handling is commonly used to transfer materials. Currently, most negative pressure material handling devices are suction nozzle types. For example, utility model patent CN216889025U discloses a negative pressure material handling suction nozzle for rapid material discharge. It uses a pusher mechanism within the nozzle body to push the material adsorbed on the nozzle head off, reducing discharge time. Utility model patent CN216889026U discloses a cylinder suction nozzle unit that uses an electromagnetic pusher structure to achieve rapid material discharge. Utility model patent CN221140249U discloses a negative pressure material handling suction nozzle, including a suction nozzle tube, a suction nozzle head, and a pushing cylinder. It uses slots and openings on the suction nozzle head to create a negative pressure channel, aiming to solve the problem of impurities accumulating in dead corners. However, these existing suction nozzle-type material handling devices have several inherent defects in practical applications, especially in multi-needle array operation scenarios:

[0003] First, its internal airflow channel structure is complex and contains dead zones. The negative pressure channel inside the nozzle head usually contains multiple bends or steps, where fine impurities and dust easily accumulate and become trapped, unable to be effectively discharged. After long-term operation, the accumulation of impurities will cause blockage of the airflow channel, a decrease in vacuum, and ultimately the failure of the material handling function. Although a negative pressure material handling nozzle with publication number CN221140249U attempts to improve the airflow channel through a slotted design, the complex internal structure of the nozzle head still makes it difficult to completely avoid the accumulation of impurities.

[0004] Secondly, to address maintenance issues after blockage, it is usually necessary to disassemble the entire nozzle head from the nozzle tube for cleaning. This not only increases equipment downtime and reduces production efficiency, but also, during frequent assembly and disassembly, improper operation or thread wear (if it is a threaded connection) may lead to a decrease in the installation accuracy of the nozzle head, affecting the positional accuracy of material handling. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a negative pressure material handling device that can quickly unload materials. It aims to solve the problems of easy clogging, difficult maintenance, and poor adaptability to arraying of existing suction nozzle structures, while realizing the rapid and reliable release of materials to meet the needs of high-speed and high-precision automated production.

[0006] The technical solution adopted by this utility model is as follows: a negative pressure material handling device for rapid material removal, including a vacuum seat, a vacuum chamber formed inside the vacuum seat, a vacuum interface for connection with a vacuum device on the vacuum seat, and also including a material handling needle and a material removal mechanism;

[0007] Multiple picking needles are arranged in an array and fixed at the bottom of the vacuum seat and communicate with the vacuum chamber to simultaneously adsorb multiple materials through negative pressure.

[0008] The unloading mechanism includes an unloading plate seat, a movable block, and an unloading plate cover;

[0009] The stripping plate seat has multiple first through holes corresponding to the multiple picking needles; multiple movable blocks are respectively housed in the first through holes of the stripping plate seat, and the first through hole has an axial limiting structure for restricting the upward movement of the movable block, and the outer diameter of the movable block is smaller than the inner diameter of the first through hole, so that the movable block can float radially within the corresponding first through hole; each movable block has a second through hole for the picking needle to pass through; the stripping plate cover is fixedly connected to the stripping plate seat and provides downward axial limiting for the movable block housed in the first through hole, and the stripping plate cover has multiple third through holes corresponding to the multiple first through holes, through which the picking needle passes in sequence;

[0010] The material removal mechanism is connected to a driving device, which drives the material removal mechanism to move along the axial direction of the material taking needle, so that the material removal mechanism pushes the material adsorbed on the material taking needle to fall off.

[0011] Furthermore, the first through hole is a circular hole, and the movable block is a cylindrical structure, the difference between its outer diameter and the inner diameter of the first through hole constitutes a radial movable clearance.

[0012] Furthermore, the first through hole is a stepped hole, and the axial limiting structure is a stepped surface formed in the first through hole.

[0013] Furthermore, the bottom surface of the stripping plate seat is provided with a strip groove corresponding to the number of rows of the first through holes, and the extension direction of the strip groove is consistent with the arrangement direction of the corresponding row of the first through holes; a guide plate is provided in each strip groove, and a fourth through hole corresponding to the first through hole is provided on the guide plate; the diameter of the fourth through hole is smaller than the corresponding outer diameter of the movable block; the diameter of the third through hole on the stripping plate cover is larger than the diameter of the fourth through hole.

[0014] Furthermore, one end of the guide rail plate is connected to the side wall of the stripper plate seat by fasteners.

[0015] Furthermore, multiple vacuum seats are provided, and each vacuum seat is fixedly connected to a mounting plate; the driving device is a driving cylinder, the cylinder body of the driving cylinder is fixed to the mounting plate, and the piston rod end of the driving cylinder is fixedly connected to the stripping plate seat.

[0016] Furthermore, the vacuum interfaces of multiple vacuum seats are connected to the vacuum equipment through the same vacuum pipe.

[0017] Furthermore, a guide sleeve is fixedly provided on the mounting plate, and a guide rod is connected to the stripping plate seat. The guide rod and the guide sleeve slide together to provide guidance for the axial movement of the stripping mechanism.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) This utility model adopts a combination of "vacuum adsorption material taking + mechanical push plate material removal". The push plate material removal mechanism adopts an external design, which makes the structure simpler and more reliable. There is no need to set a complex push rod mechanism inside the suction nozzle, which avoids the jamming problem caused by the high precision requirement of the push rod and the suction nozzle head. It realizes the rapid, synchronous and reliable release of materials, significantly improves production efficiency, and greatly reduces manufacturing and maintenance costs.

[0020] (2) By setting up a stripping mechanism consisting of a stripping plate seat, a movable block and a stripping plate cover, and setting a radially floating movable block in the first through hole of the stripping plate seat, each picking needle can obtain independent floating compensation capability, and can automatically adapt to the manufacturing and assembly errors of the picking needle array, effectively solving the jamming and interference problems that are easy to occur when stripping in a multi-needle array environment, and greatly improving the reliability and service life of the equipment.

[0021] (3) The unloading mechanism adopts a modular design. Through the cooperation of the strip groove and the guide plate, the guide plate can be quickly installed and accurately positioned. By setting a multi-level hole diameter (third through hole > fourth through hole > outer diameter of the moving block), the floating range of the moving block is expanded while ensuring good guidance. Attached Figure Description

[0022] Figure 1 This is a partial cross-sectional structural diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the vacuum seat of this utility model.

[0025] Figure 4 This is a schematic diagram of the overall structure of the unloading mechanism of this utility model.

[0026] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0027] Figure 6 This is a partial exploded view of the unloading mechanism of this utility model.

[0028] In the figure: vacuum seat 1, vacuum chamber 101, vacuum interface 102, material picking needle 2, material unloading mechanism 3, material unloading plate seat 301, movable block 302, material unloading plate cover 303, guide rail plate 304, first through hole 305, second through hole 306, third through hole 307, fourth through hole 308, strip groove 309, drive device 4, mounting plate 5, vacuum pipe 6, guide sleeve 7, guide rod 8. Detailed Implementation

[0029] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0030] like Figures 1 to 6 As shown in the figure, the negative pressure material handling device for rapid material removal provided in this embodiment mainly includes a vacuum seat 1, a material handling needle 2, a material removal mechanism 3, and a driving device 4.

[0031] The vacuum seat 1 has a vacuum chamber 101 inside, and a vacuum interface 102 for connecting to a vacuum device is provided on the vacuum seat 1. Multiple picking needles 2 are fixed in an array at the bottom of the vacuum seat 1, and each picking needle 2 is connected to the vacuum chamber 101 to simultaneously adsorb multiple materials through negative pressure.

[0032] The unloading mechanism 3 includes an unloading plate seat 301, movable blocks 302, and an unloading plate cover 303. The unloading plate seat 301 has multiple first through holes 305 corresponding to the picking needles 2. Multiple movable blocks 302 are respectively housed within the first through holes 305. The first through holes 305 are preferably stepped holes, with the stepped surface forming an axial limiting structure to restrict the upward movement of the movable blocks 302. The outer diameter of the movable block 302 is smaller than the inner diameter of the first through hole 305, allowing the movable block 302 to float radially within the corresponding first through hole 305. Each movable block 302 has a second through hole 306 through which the picking needles 2 pass.

[0033] The stripper plate cover 303 is fixedly connected to the stripper plate seat 301 and provides downward axial restraint for the movable block 302 housed in the first through hole 305. The stripper plate cover 303 is provided with a plurality of third through holes 307 corresponding one-to-one with the first through hole 305. The picking needle 2 passes through the first through hole 305, the second through hole 306 of the movable block 302, and the third through holes 307 of the stripper plate cover 303 in sequence.

[0034] As a preferred embodiment, the bottom surface of the stripper plate base 301 is provided with strip grooves 309 corresponding to the number of rows of first through holes 305, and the extending direction of the strip grooves 309 is consistent with the arrangement direction of the corresponding row of first through holes 305. Each strip groove 309 is provided with a guide rail plate 304, and the guide rail plate 304 is provided with a fourth through hole 308 corresponding to the first through hole 305. The diameter of the fourth through hole 308 is smaller than the corresponding outer diameter of the movable block 302, while the diameter of the third through hole 307 on the stripper plate cover 303 is larger than the diameter of the fourth through hole 308.

[0035] Preferably, one end of the guide rail plate 304 is connected to the side wall of the stripper plate seat 301 by fasteners to enhance structural stability.

[0036] In a preferred embodiment, multiple vacuum seats 1 are provided, and each vacuum seat 1 is fixedly connected to a mounting plate 5. The driving device 4 is a driving cylinder, the cylinder body of which is fixed to the mounting plate 5, and the piston rod end is fixedly connected to the unloading plate seat 301, for driving the unloading mechanism 3 to move axially along the picking needle 2. The vacuum interfaces 102 of the multiple vacuum seats 1 are connected to the vacuum equipment through the same vacuum pipe 6 to achieve centralized vacuum supply.

[0037] To further improve motion accuracy, a guide sleeve 7 is fixedly installed on the mounting plate 5, and a guide rod 8 is connected to the stripping plate seat 301. The guide rod 8 and the guide sleeve 7 are slidably engaged to provide precise guidance for the axial movement of the stripping mechanism 3.

[0038] The working principle of this utility model is as follows:

[0039] During operation, the vacuum equipment provides negative pressure to the vacuum chambers 101 of each vacuum seat 1 through the vacuum pipe 6, causing the picking needles 2 to adsorb materials. During desiccation, the vacuum is shut off, the drive device 4 pushes the desiccation mechanism 3 to move downward along the guide rod 8, and the desiccation plate cover 303 pushes the material to fall off the picking needles 2. The radial floating function of the movable block 302 can adaptively compensate for the positional deviation of each picking needle 2, ensuring a smooth and reliable desiccation process.

[0040] With the aid of the teachings present in the foregoing description and related drawings, those skilled in the art will conceive of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used in a general and descriptive sense only and are not intended to be limiting.

Claims

1. A negative pressure material handling device for rapid material removal, comprising a vacuum seat (1), wherein a vacuum chamber (101) is formed inside the vacuum seat (1), and a vacuum interface (102) for connection with a vacuum device is provided on the vacuum seat (1), characterized in that, It also includes a feeding needle (2) and a stripping mechanism (3); Multiple material-collecting needles (2) are arranged in an array and fixed at the bottom of the vacuum seat (1) and communicate with the vacuum chamber (101) for adsorbing multiple materials simultaneously by negative pressure; The unloading mechanism (3) includes an unloading plate seat (301), a movable block (302), and an unloading plate cover (303); The stripper plate seat (301) is provided with a plurality of first through holes (305) corresponding one-to-one with the plurality of picking needles (2); a plurality of movable blocks (302) are respectively housed in the first through holes (305) of the stripper plate seat (301), and the first through hole (305) is provided with an axial limiting structure for restricting the upward movement of the movable block (302), and the outer diameter of the movable block (302) is smaller than the inner diameter of the first through hole (305), so that the movable block (302) can move radially within the corresponding first through hole (305). Floating; each of the movable blocks (302) is provided with a second through hole (306) through which the picking needle (2) passes; the stripping plate cover (303) is fixedly connected to the stripping plate seat (301) and provides downward axial limitation for the movable block (302) housed in the first through hole (305); the stripping plate cover (303) is provided with a plurality of third through holes (307) corresponding one-to-one with the plurality of first through holes (305); the picking needle (2) passes through the first through hole (305), the second through hole (306), and the third through hole (307) in sequence. The material removal mechanism (3) is connected to a drive device (4), which is used to drive the material removal mechanism (3) to move along the axial direction of the material taking needle (2), so that the material removal mechanism (3) pushes the material adsorbed on the material taking needle (2) to fall off.

2. The negative pressure material handling device for rapid material removal as described in claim 1, characterized in that: The first through hole (305) is a circular hole, and the movable block (302) is a cylindrical structure. The difference between its outer diameter and the inner diameter of the first through hole (305) forms a radial movable gap.

3. The negative pressure material handling device for rapid material removal as described in claim 1, characterized in that: The first through hole (305) is a stepped hole, and the axial limiting structure is a stepped surface formed in the first through hole (305).

4. The negative pressure material handling device for rapid material removal as described in claim 1, characterized in that: The bottom surface of the stripping plate seat (301) is provided with a strip groove (309) corresponding to the number of rows of the first through holes (305), and the extension direction of the strip groove (309) is consistent with the arrangement direction of the corresponding row of the first through holes (305); a guide plate (304) is provided in each strip groove (309), and a fourth through hole (308) corresponding to the first through hole (305) is provided on the guide plate (304); the diameter of the fourth through hole (308) is smaller than the corresponding outer diameter of the movable block (302); the diameter of the third through hole (307) on the stripping plate cover (303) is larger than the diameter of the fourth through hole (308).

5. The negative pressure material handling device for rapid material removal as described in claim 4, characterized in that: One end of the guide rail plate (304) is connected to the side wall of the stripper plate seat (301) by fasteners.

6. A negative pressure material handling device for rapid material removal as described in any one of claims 1-5, characterized in that: Multiple vacuum seats (1) are provided, and multiple vacuum seats (1) are fixedly connected to a mounting plate (5); the driving device (4) is a driving cylinder, the cylinder body of the driving cylinder is fixed to the mounting plate (5), and the piston rod end of the driving cylinder is fixedly connected to the stripping plate seat (301).

7. The negative pressure material handling device for rapid material removal as described in claim 6, characterized in that: The vacuum ports (102) of the multiple vacuum seats (1) are connected to the vacuum equipment through the same vacuum pipe (6).

8. The negative pressure material handling device for rapid material removal as described in claim 6, characterized in that: A guide sleeve (7) is fixedly provided on the mounting plate (5), and a guide rod (8) is connected to the stripping plate seat (301). The guide rod (8) and the guide sleeve (7) slide together to provide guidance for the axial movement of the stripping mechanism (3).

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