Stacking and powder scattering mechanism for neodymium-iron-boron magnetic blocks

Abstract

The stacking and powder scattering mechanism comprises a base, a hopper frame and a powder collecting bin, and the base is provided with a bearing table and a moving mechanism for driving the bearing table to transversely move at a constant speed in a reciprocating mode; the hopper frame is erected at the upper end of the base, a hopper and a powder blocking mechanism are fixedly installed on the hopper frame, a containing cavity used for containing materials is formed in the hopper, a discharging opening communicated with the containing cavity is formed in the bottom of the hopper, and the discharging opening in the bottom of the hopper is higher than the bearing table by a certain distance. The driving piece can drive the baffle to move so as to open or close the discharging opening. The powder collecting bin is fixedly arranged at the lower end, corresponding to the hopper, of the base and used for collecting powder falling from the bearing table or directly falling from the discharging opening, through the arrangement, automatic and uniform powder scattering of the neodymium-iron-boron magnetic blocks can be achieved, powder scattering is more uniform, and the powder scattering efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of powder spreading mechanisms, in particular to a stacking powder spreading mechanism for NdFeB magnetic blocks. Background Art

[0002] NdFeB is a magnetic material, known as the "King of Magnets" for its excellent magnetic properties. NdFeB can be divided into sintered NdFeB and bonded NdFeB. Since the magnetic properties of sintered NdFeB are far superior to those of bonded NdFeB, sintered NdFeB is widely used in electronics, power machinery, medical equipment, toys, packaging, hardware machinery, aerospace and other fields. NdFeB is first pressed into shape in a magnetic field, and then it needs to be sintered at high temperature in a vacuum sintering furnace, and then cooled to achieve densification, so that the sintered product can have higher magnetic properties.

[0003] After the initial sintering, the NdFeB blocks need to be subjected to aging treatment. In order to accommodate the NdFeB blocks to a greater extent in the vacuum sintering furnace, the NdFeB blocks need to be stacked regularly. In addition, in order to reduce the friction between adjacent NdFeB blocks during the aging treatment, a mixture of materials such as resin and alumina is generally evenly sprinkled between adjacent NdFeB blocks manually. However, manual powdering cannot achieve uniform powdering on the one hand, and on the other hand, the efficiency is low and the labor cost is high. Therefore, it is necessary to design a stacking powdering mechanism for NdFeB magnets. Summary of the invention

[0004] The utility model aims to provide a stacking powder spreading mechanism for NdFeB magnet blocks, which can realize automatic and uniform powder spreading on NdFeB magnet blocks, thereby making the powder spreading more uniform and more efficient.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a stacking powder spreading mechanism of NdFeB magnetic blocks, comprising:

[0006] The base is provided with a bearing platform and a moving mechanism for driving the bearing platform to move back and forth at a uniform speed laterally;

[0007] A hopper frame is mounted on the upper end of the base, and a hopper and a powder blocking mechanism are fixedly mounted on the hopper frame. A cavity for accommodating materials is provided in the hopper, and a discharge port communicating with the cavity is provided at the bottom of the hopper. The discharge port at the bottom of the hopper is higher than the bearing platform by a certain distance. The powder blocking mechanism includes a baffle and a driving member connected to the baffle, and the driving member can drive the baffle to move to open or close the discharge port;

[0008] The powder collecting bin is fixedly arranged at the lower end of the base corresponding to the hopper, and is used to collect powder dropped from the supporting platform or directly dropped from the discharge port.

[0009] Furthermore, the moving mechanism includes a screw mechanism arranged on the base, and the bearing platform is driven to move back and forth laterally at a uniform speed through the screw mechanism. The base is provided with a track that cooperates with the guide of the bearing platform.

[0010] Furthermore, the screw mechanism includes a screw, a nut and a servo motor, one end of the screw is installed on the base through a bearing seat, the other end of the screw is connected to the output end of the servo motor, and the nut is arranged on the screw and connected to the support platform.

[0011] Furthermore, a plurality of partitions are provided in the hopper, and the containing cavity is divided into a plurality of chambers isolated from each other by the partitions.

[0012] Furthermore, the feed opening is a long and narrow strip structure and extends in the longitudinal direction.

[0013] Furthermore, the bearing platforms are provided in multiple groups, and the moving mechanism is used to drive the multiple groups of bearing platforms to move synchronously and reciprocatingly at a uniform speed.

[0014] Furthermore, the powder collecting bin is a funnel-shaped structure that is larger at the top and smaller at the bottom.

[0015] Furthermore, limit switches are respectively provided on the left and right sides of the base, and when the limit switches sense the support platform, they can provide a signal for the servo motor to stop driving the support platform to continue moving.

[0016] Furthermore, the powder spreading mechanism also includes a transfer mechanism arranged on the base, the transfer mechanism includes a grabbing mechanism, a lifting mechanism driving the grabbing mechanism to move vertically, and a longitudinal movement mechanism driving the grabbing mechanism to move longitudinally, and the grabbing mechanism is used to grab the NdFeB magnet block.

[0017] Furthermore, the grabbing mechanism includes a mounting frame, a first cylinder and a movable plate. A fixed plate is provided at the bottom of the mounting frame, and a plurality of arranged magnets are installed on the movable plate. The fixed plate is provided with through grooves at positions corresponding to the magnets. First cylinders are respectively installed on both sides of the mounting frame, and the output end of the first cylinder is connected to the movable plate.

[0018] In summary, the utility model has the following beneficial effects:

[0019] The stacking and powdering mechanism of the NdFeB magnet blocks can realize automatic and uniform powdering of the NdFeB magnet blocks, so that the powdering is more uniform and the powdering efficiency is higher. In the specific operation process, the NdFeB magnet blocks are placed on the supporting platform, and the supporting platform is driven by the moving mechanism to move at a uniform speed toward one side of the hopper. The driving part drives the baffle to move to open the discharge port, so that the powder in the hopper is evenly sprinkled onto the upper end surface of the NdFeB magnet block. After the powdering is completed, another NdFeB magnet block is stacked on the NdFeB magnet block that has been sprinkled with powder, and then the NdFeB magnet block stacked on the top layer is powdered again. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the utility model.

[0021] Figure 2 It is a top view of the utility model.

[0022] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0023] In the figure: 10, base; 11, limit switch; 20, bearing platform; 30, moving mechanism; 40, hopper frame; 50, hopper; 51, discharge port; 52, partition; 60, powder blocking mechanism; 61, baffle; 62, driving member; 70, powder collecting bin; 80, grabbing mechanism; 81, mounting frame; 82, first cylinder; 83, movable plate; 831, mounting hole; 84, fixed plate; 90, lifting mechanism; 100, longitudinal movement mechanism; 110, NdFeB magnet. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-3 As shown, a stacking powder spreading mechanism of NdFeB magnetic blocks includes a base 10, a hopper frame 40, a powder collecting bin 70, a hopper 50 and a powder blocking mechanism 60, which constitute the basic structure of the utility model. For ease of understanding, the horizontal direction of the utility model is the left-right direction, the longitudinal direction is the front-back direction, and the vertical direction is the up-down direction.

[0026] The base 10 is provided with a bearing platform 20 and a moving mechanism 30 for driving the bearing platform 20 to move back and forth at a uniform speed in a horizontal direction. The moving mechanism 30 includes a screw mechanism arranged on the base 10, and the bearing platform 20 is driven to move back and forth at a uniform speed in a horizontal direction through the screw mechanism. The base 10 is provided with a track that cooperates with the guide of the bearing platform 20. Further, the screw mechanism includes a screw, a nut and a servo motor, one end of the screw is installed on the base 10 through a bearing seat, the other end of the screw is connected to the output end of the servo motor, and the nut is arranged on the screw and connected to the bearing platform 20.

[0027] The hopper frame 40 is erected on the upper end of the base 10. In the utility model, the hopper frame 40 is arranged on the left side of the base 10, and the servo motor is arranged on the right side of the base 10. A hopper 50 and a powder blocking mechanism 60 are fixedly installed on the hopper frame 40. A cavity for accommodating materials is provided in the hopper 50, and a discharge port 51 connected to the cavity is provided at the bottom of the hopper 50. Furthermore, the discharge port 51 is a narrow and long strip structure and extends longitudinally. The longitudinal length of the discharge port 51 is greater than the length of the NdFeB magnet 110. The discharge port 51 at the bottom of the hopper 50 is higher than the support platform 20 by a certain distance. The powder blocking mechanism 60 includes a baffle 61 and a driving member 62 connected to the baffle 61. The driving member 62 can drive the baffle 61 to move to open or close the discharge port 51. In the utility model, the driving member 62 is a telescopic cylinder, and the output end of the telescopic cylinder is connected to the baffle 61, and the baffle 61 is horizontally arranged.

[0028] The powder collecting bin 70 is fixedly arranged at the lower end of the base 10 corresponding to the hopper 50. Specifically, the powder collecting bin 70 is arranged at the lower end of the supporting platform 20. The powder collecting bin 70 is used to collect powder that falls from the supporting platform 20 or directly falls from the discharge port 51. Furthermore, the powder collecting bin 70 is a funnel-shaped structure that is larger at the top and smaller at the bottom. The powder collecting bin 70 has a chamber with an upper opening, and the bottom of the chamber is provided with a discharge port 51 and a switch for opening and closing the discharge port 51.

[0029] The hopper 50 is provided with a plurality of partitions 52, which divide the cavity into a plurality of mutually isolated chambers. In the utility model, the partitions 52 are arranged in three groups to divide the cavity into four chambers. This arrangement can achieve the purpose of uniform unloading and can also prevent the problem of blockage caused by too much material in the cavity.

[0030] The support platforms 20 are provided in multiple groups, and the moving mechanism 30 is used to drive the multiple groups of support platforms 20 to synchronously reciprocate and move horizontally at a uniform speed. In the utility model, the support platforms 20 are provided in two groups. Through this arrangement, one of the support platforms 20 can load materials normally (the first NdFeB magnet block 110 of the transfer mechanism is loaded), and the other support platform 20 can perform unloading operations, thereby reducing idle time and improving material spreading efficiency.

[0031] The base 10 is provided with limit switches 11 on the left and right sides thereof. When the limit switch 11 senses the carrier platform 20, it can provide a signal for the servo motor to stop driving the carrier platform 20 to continue moving. Specifically, when the limit switch 11 senses the carrier platform 20, it will transmit an electrical signal to the control module, and the control module will control the servo motor to rotate in the opposite direction or stop rotating. The two sides of the carrier platform 20 are respectively provided with upwardly extending bending portions, and the bending portions are arranged on the left and right sides of the carrier platform 20.

[0032] The powder spreading mechanism also includes a transfer mechanism arranged on the base 10, the transfer mechanism includes a grabbing mechanism 80, a lifting mechanism 90 driving the grabbing mechanism 80 to move vertically, and a longitudinal movement mechanism 100 driving the grabbing mechanism 80 to move longitudinally, and the grabbing mechanism 80 is used to grab the NdFeB magnet block 110. Further, the grabbing mechanism 80 includes a mounting frame 81, a first cylinder 82, and a movable plate 83, a fixed plate 84 is arranged at the bottom of the mounting frame 81, a plurality of arranged magnets are installed on the movable plate 83, and the fixed plate 84 is provided with a through groove at the position corresponding to the magnet, and the first cylinder 82 is respectively installed on both sides of the mounting frame 81, and the output end of the first cylinder 82 is connected to the movable plate 83, in the grabbing state, the first cylinder 82 is in an extended state, at which time the movable plate 83 is attached to the upper end of the fixed plate 84, and in the unloading state, the first cylinder 82 is switched to a retracted state, at which time the movable plate 83 moves upward and has a certain distance from the fixed plate 84. Specifically, the movable plate 83 is provided with a plurality of mounting holes 831 arranged therein, and the magnet is installed in the mounting hole 831. The NdFeB magnet block 110 is grasped by the suction force of the magnet, and the NdFeB magnet block 110 is transferred to the upper end of the supporting platform 20 by the longitudinal movement mechanism 100. The NdFeB magnet block 110 is driven down to a set height by the lifting mechanism 90, and the first cylinder 82 is switched to a retracted state. At this time, the movable plate 83 and the magnet installed on the movable plate 83 move up so that the force exerted by the magnet on the NdFeB magnet block 110 is less than the gravity of the NdFeB magnet block 110 itself, so that the NdFeB magnet block 110 falls onto the supporting platform 20 or onto the NdFeB magnet block 110 on the supporting platform 20.

[0033] In the utility model, a conveyor line is provided on the side of the base 10, and the conveyor line is used to transfer the NdFeB magnet block 110. A gantry is set between the conveyor line and the upper end of the base 10. The longitudinal movement mechanism 100 is arranged on the gantry. The longitudinal movement mechanism 100 includes a support frame and a screw mechanism for driving the support frame to move longitudinally. The support frame is guided by a longitudinally arranged track. The lifting mechanism 90 includes two groups of vertically arranged second cylinders arranged on the support frame, and the output end of the second cylinder is connected to the mounting frame 81.

[0034] In summary, the utility model has the following beneficial effects:

[0035] The stacking and powdering mechanism of the NdFeB magnet blocks can realize automatic and uniform powdering of the NdFeB magnet blocks 110, so that the powdering is more uniform and the powdering efficiency is higher. In the specific operation process, the NdFeB magnet block 110 is placed on the supporting platform 20, and the supporting platform 20 is driven by the moving mechanism 30 to move at a uniform speed toward the side of the hopper 50, and the driving member 62 drives the baffle 61 to move to open the discharge port 51, so that the powder in the hopper 50 is evenly sprinkled onto the upper end surface of the NdFeB magnet block 110. After the powdering is completed, another NdFeB magnet block 110 is stacked on the NdFeB magnet block 110 that has been sprinkled with powder, and then the NdFeB magnet block 110 stacked on the top layer is powdered again.

[0036] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A stacking and powder spreading mechanism for NdFeB magnet blocks, characterized in that: include The base (10) is provided with a bearing platform (20) and a moving mechanism (30) for driving the bearing platform (20) to move back and forth laterally at a uniform speed; A hopper frame (40) is mounted on the upper end of the base (10). A hopper (50) and a powder blocking mechanism (60) are fixedly mounted on the hopper frame (40). A cavity for accommodating materials is provided in the hopper (50). A discharge port (51) communicating with the cavity is provided at the bottom of the hopper (50). The discharge port (51) at the bottom of the hopper (50) is higher than the support platform (20) by a certain distance. The powder blocking mechanism (60) includes a baffle (61) and a driving member (62) connected to the baffle (61). The driving member (62) can drive the baffle (61) to move so as to open or close the discharge port (51). The powder collecting bin (70) is fixedly arranged at the lower end of the base (10) corresponding to the hopper (50), and the powder collecting bin (70) is used to collect powder dropped from the supporting platform (20) or directly dropped from the discharge port (51).

2. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 1, characterized in that: The moving mechanism (30) comprises a screw mechanism arranged on the base (10), and the screw mechanism drives the bearing platform (20) to move back and forth horizontally at a uniform speed. The base (10) is provided with a track that cooperates with the bearing platform (20) for guiding.

3. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 2, characterized in that: The screw mechanism comprises a screw, a nut and a servo motor; one end of the screw is mounted on a base (10) via a bearing seat; the other end of the screw is connected to an output end of the servo motor; and the nut is arranged on the screw and connected to a bearing platform (20).

4. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 1, characterized in that: A plurality of partitions (52) are arranged in the hopper (50), and the containing cavity is divided into a plurality of chambers isolated from each other by the partitions (52).

5. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 1, characterized in that: The feed opening (51) is a long and narrow strip-shaped structure and extends in the longitudinal direction.

6. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 1, characterized in that: The bearing platforms (20) are provided in multiple groups, and the moving mechanism (30) is used to drive the multiple groups of bearing platforms (20) to synchronously reciprocate and move horizontally at a uniform speed.

7. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 1, characterized in that: The powder collecting bin (70) is a funnel-shaped structure that is larger at the top and smaller at the bottom.

8. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 1, characterized in that: Limit switches (11) are respectively provided on the left and right sides of the base (10). When the limit switches (11) sense the support platform (20), they can provide a signal for the servo motor to stop driving the support platform (20) to continue moving.

9. A stacking and powder spreading mechanism for NdFeB magnet blocks according to any one of claims 1 to 8, characterized in that: The powder spreading mechanism also includes a transfer mechanism arranged on the base (10), the transfer mechanism including a grabbing mechanism (80), a lifting mechanism (90) for driving the grabbing mechanism (80) to move vertically, and a longitudinal movement mechanism (100) for driving the grabbing mechanism (80) to move longitudinally, the grabbing mechanism (80) being used to grab the neodymium iron boron magnetic block (110).

10. The stacking and powder spreading mechanism of NdFeB magnet blocks according to claim 9, characterized in that: The grabbing mechanism (80) comprises a mounting frame (81), a first cylinder (82) and a movable plate (83); a fixed plate (84) is arranged at the bottom of the mounting frame (81); a plurality of arranged magnets are mounted on the movable plate (83); through grooves are arranged on the fixed plate (84) at positions corresponding to the magnets; first cylinders (82) are respectively mounted on both sides of the mounting frame (81); and an output end of the first cylinder (82) is connected to the movable plate (83).

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