Material grinding device

Abstract

The utility model relates to the technical field of circuit boards, and discloses a material grinding device which comprises two sets of grinding mechanisms which are symmetrically arranged, each grinding mechanism comprises a grinding box, a fixed grinding plate is fixedly connected to an inner cavity of the grinding box, a movable grinding plate is arranged above the fixed grinding plate, and the movable grinding plate is fixedly connected with the grinding box. The upper surface of the movable grinding plate is fixedly connected with a plurality of groups of telescopic sleeve rods; through cooperation of a grinding box, a fixed grinding plate, a movable grinding plate, a connecting plate and a first motor, the first motor drives a rotating shaft to enable a rotating disc to drive a connecting rod to do circular motion, and the connecting plate linearly moves along a guide rail base under the action of the connecting rod; and therefore, the movable grinding plate and the fixed grinding plate rapidly grind materials under the action of the springs, the grinding efficiency of the materials is improved, the particle size of the materials is smaller, subsequent rapid separation of plastic and copper is facilitated, and the processing efficiency of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a material grinding device. Background Art

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed circuit boards, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts. Circuit boards can be called printed circuit boards or printed circuit boards. After the circuit boards are scrapped, the materials of the circuit boards themselves can also be recycled, and the users need to crush and grind the circuit boards and then re-make the circuit boards through processing;

[0003] In the prior art, the Chinese utility model with announcement number: CN218459647U discloses a device for crushing and grinding waste circuit boards, including a processing seat, the upper surface of which is fixed with a feed bevel, the inside of which is rotatably connected with a first crushing roller, and there are two first crushing rollers, which are meshed with each other, and the outer wall of which is fixed with a first motor. This application uses two first crushing rollers to squeeze and crush waste circuit boards, and the crushed waste circuit boards will fall into the interior of the processing seat, and the qualified waste circuit boards will fall into the interior of the first collection frame along the grids equidistantly opened on the surface of the inclined screen, while the unqualified waste circuit boards that are still large in volume will be inclined through the inclined screen and fall into the interior of the secondary crushing frame, and the crushed materials can be screened through the inclined screen plate;

[0004] In the above technical solution, the crushing efficiency of the circuit board is improved by the double crushing of the primary crushing roller and the secondary crushing roller. However, some of the plastic particles and copper particles of the circuit board that are crushed into granules will still adhere to each other, and the crushed particles need to be further ground to facilitate the separation of plastic and copper, which increases the operation steps and reduces the efficiency of circuit board processing. Therefore, we need to propose a material grinding device. Utility Model Content

[0005] The purpose of the utility model is to provide a material grinding device. The circuit board is first subjected to multi-stage crushing treatment by a crushing device to make the circuit board crushed into uniform particle size, and then transported to the grinding device through a conveying device to grind the crushed particles to obtain particles with a smaller particle size, so as to facilitate the subsequent separation of plastic and copper after the circuit board is crushed, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a material grinding device, comprising two sets of symmetrically arranged grinding mechanisms:

[0007] The grinding mechanism includes a grinding box, a fixed grinding plate is fixedly connected to the inner cavity of the grinding box, a movable grinding plate is arranged above the fixed grinding plate, a plurality of groups of telescopic sleeves are fixedly connected to the upper surface of the movable grinding plate, the outer sides of the plurality of groups of telescopic sleeves are sleeved with springs, the upper ends of the plurality of groups of telescopic sleeves are fixedly connected to connecting plates, two groups of sliding bars are fixedly connected to the upper surface of the connecting plate, a guide rail for sliding connection of the two groups of sliding bars is fixedly connected to the top of the inner cavity of the grinding box, a first motor is installed at one end of the upper surface of the grinding box, the output shaft of the first motor is transmission-connected to a rotating shaft, a turntable is fixedly connected to the lower end of the rotating shaft, a connecting rod is rotatably connected to the lower surface of the turntable, and a rotating hole for rotatably connecting the connecting rod is opened on one side of the connecting plate.

[0008] Preferably, a baffle is fixedly connected to one end of the top of the inner cavity of the grinding box away from the rotating axis, the length of the movable grinding plate is smaller than the length of the fixed grinding plate, the extension line of the fixed grinding plate is arranged to intersect with the horizontal plane, and a grinding layer is provided on the opposite side of the fixed grinding plate and the movable grinding plate.

[0009] Preferably, the multiple groups of telescopic sleeve rods are arranged in a rectangular array, the lengths of the multiple groups of telescopic sleeve rods are arranged in equal proportion, and a first discharge pipe is provided at one end of the lower surface of the grinding box.

[0010] Preferably, it also includes a base, the upper surface of which is mounted with a feeding mechanism and a bracket for supporting the grinding box, the discharging end of the feeding mechanism is provided with a dividing mechanism, the feeding end of the feeding mechanism is provided with a crushing mechanism, a feeding hopper is provided above the crushing mechanism, and a collecting trolley is provided below the first discharge pipe.

[0011] Preferably, the feeding mechanism includes a feeding barrel and a third motor, the inner cavity of the feeding barrel is rotatably connected to a second feeding auger, one end of the second feeding auger is driven by the third motor, and the outer lower end of the feeding barrel is fixedly connected to multiple groups of supporting columns.

[0012] Preferably, a connecting hole is provided at the lower end of the outer side of the feeding cylinder, and the upper end of the outer side of the feeding cylinder is connected to a third feeding pipe, and a dividing plate is fixedly connected to the inside of the third feeding pipe.

[0013] Preferably, the material distribution mechanism includes a material distribution trough and a second motor. The inner cavity of the material distribution trough is rotatably connected to a connecting shaft. One end of the connecting shaft passes through the material distribution trough and is driven by the second motor. Both ends of the connecting shaft are fixedly connected to the first feeding auger.

[0014] Preferably, both ends of the lower surface of the material distribution trough are fixedly connected with a second material discharge pipe connected to the grinding box, and the middle part of the inner cavity of the material distribution trough is fixedly connected with two groups of centralizing plates.

[0015] Preferably, the crushing mechanism includes a crushing square tube connected to the connecting hole, and the inner cavity of the crushing square tube is rotatably connected with two groups of primary crushing rollers and two groups of secondary crushing rollers, one end of one group of the primary crushing rollers penetrates the crushing square tube and is driven by a fourth motor, and one end of one group of the secondary crushing rollers penetrates the crushing square tube and is driven by a fifth motor.

[0016] Preferably, the inner cavity of the crushing square tube is symmetrically provided with two groups of guide plates, the two groups of guide plates are arranged between the primary crushing roller and the secondary crushing roller, and the feed hopper is arranged at the upper end of the crushing square tube.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model mainly cooperates between a grinding box, a fixed grinding plate, a movable grinding plate, a connecting plate and a first motor. The first motor drives a rotating shaft to make a turntable drive a connecting rod to make a circular motion. The connecting plate moves linearly along a guide rail seat under the action of the connecting rod. Therefore, under the action of a spring, the movable grinding plate and the fixed grinding plate quickly grind the material, thereby improving the grinding efficiency of the material, making the particle size of the material smaller, facilitating the subsequent rapid separation of plastic and copper, and improving the processing efficiency of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the material dividing mechanism and the grinding mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the feeding mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the crushing mechanism of the utility model.

[0023] In the figure: 1, base; 2, bracket; 3, grinding mechanism; 31, grinding box; 32, fixed grinding plate; 33, guide rail; 34, connecting plate; 35, slide bar; 36, connecting rod; 37, turntable; 38, rotating shaft; 39, first motor; 310, movable grinding plate; 311, telescopic sleeve rod; 312, spring; 313, baffle; 314, first feeding pipe; 4, collecting trolley; 5, material distribution mechanism; 51, material distribution trough; 52, second motor; 5 3. Connecting shaft; 54. First feeding auger; 55. Centralizing plate; 56. Second feeding tube; 6. Feeding mechanism; 61. Feeding barrel; 62. Second feeding auger; 63. Third motor; 64. Third feeding tube; 65. Dividing plate; 66. Supporting column; 67. Connecting hole; 7. Breaking mechanism; 71. Breaking square tube; 72. First-stage breaking roller; 73. Fourth motor; 74. Guide plate; 75. Second-stage breaking roller; 76. Fifth motor; 8. Feed hopper. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: a material grinding device, comprising two sets of symmetrically arranged grinding mechanisms 3:

[0026] The grinding mechanism 3 includes a grinding box 31, the inner cavity of the grinding box 31 is fixedly connected to a fixed grinding plate 32, a movable grinding plate 310 is arranged above the fixed grinding plate 32, a plurality of telescopic sleeve rods 311 are fixedly connected to the upper surface of the movable grinding plate 310, the outer sides of the plurality of telescopic sleeve rods 311 are sleeved with springs 312, the upper ends of the plurality of telescopic sleeve rods 311 are fixedly connected to a connecting plate 34, the upper surface of the connecting plate 34 is fixedly connected to two groups of slide bars 35, a guide rail 33 for sliding connection of the two groups of slide bars 35 is fixedly connected to the top of the inner cavity of the grinding box 31, a first motor 39 is installed at one end of the upper surface of the grinding box 31, the output shaft of the first motor 39 is transmission-connected to a rotating shaft 38, a turntable 37 is fixedly connected to the lower end of the rotating shaft 38, a connecting rod 36 is rotatably connected to the lower surface of the turntable 37, and a rotating hole for rotatably connecting the connecting rod 36 is opened on one side of the connecting plate 34.

[0027] A baffle 313 is fixedly connected to one end of the inner top of the grinding box 31 away from the rotating shaft 38. The length of the movable grinding plate 310 is shorter than that of the fixed grinding plate 32. The extension line of the fixed grinding plate 32 is arranged to intersect with the horizontal plane. A grinding layer is arranged on the opposite side of the fixed grinding plate 32 and the movable grinding plate 310. The baffle 313 prevents materials (plastic particles and copper particles) from falling on the connecting plate 34, thereby improving the service life of the equipment.

[0028] A plurality of telescopic rods 311 are arranged in a rectangular array, and the lengths of the plurality of telescopic rods 311 are arranged in equal proportion. A first discharge pipe 314 is arranged at one end of the lower surface of the grinding box 31. The plurality of telescopic rods 311 improve the stability of the movable grinding plate 310, thereby ensuring the grinding efficiency of the movable grinding plate 310 and the fixed grinding plate 32 for the material.

[0029] It also includes a base 1, on the upper surface of which a feeding mechanism 6 and a bracket 2 for supporting a grinding box 31 are installed, a discharging end of the feeding mechanism 6 is provided with a dividing mechanism 5, a feeding end of the feeding mechanism 6 is provided with a crushing mechanism 7, a feeding hopper 8 is provided above the crushing mechanism 7, and a collecting trolley 4 is provided below the first discharge pipe 314. The collecting trolley 4 facilitates the collection of ground materials, and the bracket 2 improves the stability of the grinding mechanism 3.

[0030] The feeding mechanism 6 includes a feeding barrel 61 and a third motor 63. The inner cavity of the feeding barrel 61 is rotatably connected to a second feeding auger 62. One end of the second feeding auger 62 is driven by the third motor 63. The outer lower end of the feeding barrel 61 is fixedly connected to a plurality of supporting columns 66. The stability of the feeding barrel 61 is improved by the columns.

[0031] A connecting hole 67 is provided at the lower end of the outer side of the feeding barrel 61, and a third discharge pipe 64 is connected to the upper end of the outer side of the feeding barrel 61. A dividing plate 65 is fixedly connected to the inside of the third discharge pipe 64. The crushed materials are conveniently received through the connecting hole 67, and then the crushed materials are put into the dividing trough 51 through the third discharge pipe 64, and the materials are conveniently diverted through the dividing plate 65 to avoid the materials from piling up again during the transportation process.

[0032] The material distribution mechanism 5 includes a material distribution trough 51 and a second motor 52. The inner cavity of the material distribution trough 51 is rotatably connected to a connecting shaft 53. One end of the connecting shaft 53 passes through the material distribution trough 51 and is driven by the second motor 52. Both ends of the connecting shaft 53 are fixedly connected to a first feeding augers 54. The second motor 52 drives the connecting shaft 53 so that two groups of first feeding augers 54 divert and transport the accumulated plastic particles and copper particles to the grinding box 31, thereby improving the grinding efficiency of the materials.

[0033] Both ends of the lower surface of the distribution trough 51 are fixedly connected with a second discharge pipe 56 connected to the grinding box 31, and the middle part of the inner cavity of the distribution trough 51 is fixedly connected with two groups of concentrating plates 55, which facilitate the aggregation of plastic particles and copper particles through concentration, and then facilitate the two groups of first feeding augers 54 to transport plastic particles and copper particles in different directions.

[0034] The crushing mechanism 7 includes a crushing square tube 71 connected to the connecting hole 67. Two groups of primary crushing rollers 72 and two groups of secondary crushing rollers 75 are rotatably connected to the inner cavity of the crushing square tube 71. One end of one group of primary crushing rollers 72 penetrates the crushing square tube 71 and is driven by a fourth motor 73. One end of one group of secondary crushing rollers 75 penetrates the crushing square tube 71 and is driven by a fifth motor 76. The circuit board is crushed in multiple stages by the primary crushing rollers 72 and the secondary crushing rollers 75, thereby improving the efficiency of circuit board crushing.

[0035] The inner cavity of the crushing square tube 71 is symmetrically provided with two groups of guide plates 74, which are arranged between the primary crushing roller 72 and the secondary crushing roller 75. The feed hopper 8 is arranged at the upper end of the crushing square tube 71. The guide plates 74 facilitate the concentrated re-crushing of the crushed circuit board fragments, thereby improving the efficiency of circuit board crushing.

[0036] When in use, the waste circuit boards are put into the feed hopper 8, and the fourth motor 73 and the fifth motor 76 drive the primary crushing roller 72 and the secondary crushing roller 75 to double crush the circuit boards, so that the circuit boards are broken into fine particles of plastic and copper. The third motor 63 drives the second feeding auger 62 to put the crushed plastic particles and copper particles into the distribution trough 51 through the third feeding pipe 64, and then the second motor 52 drives the connecting shaft 53 to make the two groups of first feeding auger 54 separate the plastic particles and copper particles and send them to the two groups of grinding boxes 31 for grinding and refining treatment. The first motor 39 drives the rotating shaft 38 to rotate the turntable 37. Then, one end of the connecting shaft 53 makes a circular motion along the turntable 37, and at the same time, the other end of the connecting rod 36 drives the connecting plate 34 to make a linear motion. The stability of the movement of the connecting plate 34 is ensured by the guide rail 33 and the slide bar 35. The movable grinding plate 310 connected by the telescopic sleeve 311 contacts the surface of the fixed grinding plate 32 under the elastic action of the spring 312, thereby grinding the plastic particles and copper particles falling into the grinding box 31, so that the plastic particles and copper particles are ground into smaller particles, so as to facilitate the subsequent separation of plastic and copper. The ground plastic and copper fall into the collection trolley 4 through the first discharge pipe 314 for collection.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material grinding device, comprising two sets of symmetrically arranged grinding mechanisms (3), characterized in that: The grinding mechanism (3) comprises a grinding box (31), the inner cavity of the grinding box (31) is fixedly connected to a fixed grinding plate (32), a movable grinding plate (310) is arranged above the fixed grinding plate (32), a plurality of groups of telescopic sleeve rods (311) are fixedly connected to the upper surface of the movable grinding plate (310), and the outer sides of the plurality of groups of telescopic sleeve rods (311) are all sleeved with springs (312); The upper ends of the multiple groups of telescopic sleeve rods (311) are fixedly connected with a connecting plate (34), the upper surface of the connecting plate (34) is fixedly connected with two groups of sliding bars (35), the top of the inner cavity of the grinding box (31) is fixedly connected with a guide rail (33) for sliding connection of the two groups of sliding bars (35), one end of the upper surface of the grinding box (31) is installed with a first motor (39), the output shaft of the first motor (39) is transmission-connected with a rotating shaft (38), the lower end of the rotating shaft (38) is fixedly connected with a turntable (37), the lower surface of the turntable (37) is rotatably connected with a connecting rod (36), and one side of the connecting plate (34) is provided with a rotating hole for rotatably connecting the connecting rod (36).

2. The material grinding device according to claim 1, characterized in that: A baffle (313) is fixedly connected to one end of the inner cavity top of the grinding box (31) away from the rotating shaft (38), the length of the movable grinding plate (310) is smaller than the length of the fixed grinding plate (32), the extension line of the fixed grinding plate (32) is arranged to intersect with the horizontal plane, and a grinding layer is arranged on the opposite side of the fixed grinding plate (32) and the movable grinding plate (310).

3. The material grinding device according to claim 2, characterized in that: The multiple groups of telescopic sleeve rods (311) are arranged in a rectangular array, the lengths of the multiple groups of telescopic sleeve rods (311) are arranged in equal proportion, and a first discharge pipe (314) is arranged at one end of the lower surface of the grinding box (31).

4. The material grinding device according to claim 3, characterized in that: It also comprises a base (1), the upper surface of which is mounted a feeding mechanism (6) and a bracket (2) for supporting a grinding box (31), the discharging end of the feeding mechanism (6) is provided with a dividing mechanism (5), the feeding end of the feeding mechanism (6) is provided with a crushing mechanism (7), a feeding hopper (8) is provided above the crushing mechanism (7), and a collecting trolley (4) is provided below the first discharge pipe (314).

5. The material grinding device according to claim 4, characterized in that: The feeding mechanism (6) comprises a feeding barrel (61) and a third motor (63); the inner cavity of the feeding barrel (61) is rotatably connected to a second feeding auger (62); one end of the second feeding auger (62) is driven by the third motor (63); and the outer lower end of the feeding barrel (61) is fixedly connected to a plurality of supporting columns (66).

6. The material grinding device according to claim 5, characterized in that: A connecting hole (67) is provided at the lower outer end of the feeding tube (61), and a third feeding tube (64) is connected to the upper outer end of the feeding tube (61), and a dividing plate (65) is fixedly connected to the interior of the third feeding tube (64).

7. The material grinding device according to claim 6, characterized in that: The material distribution mechanism (5) comprises a material distribution trough (51) and a second motor (52); the inner cavity of the material distribution trough (51) is rotatably connected to a connecting shaft (53); one end of the connecting shaft (53) passes through the material distribution trough (51) and is driven by the second motor (52); both ends of the connecting shaft (53) are fixedly connected to a first feeding auger (54).

8. The material grinding device according to claim 7, characterized in that: Both ends of the lower surface of the material distribution trough (51) are fixedly connected to a second material discharge pipe (56) connected to the grinding box (31), and the middle of the inner cavity of the material distribution trough (51) is fixedly connected to two groups of centralizing plates (55).

9. The material grinding device according to claim 8, characterized in that: The crushing mechanism (7) comprises a crushing square tube (71) connected to the connecting hole (67); two groups of primary crushing rollers (72) and two groups of secondary crushing rollers (75) are rotatably connected to the inner cavity of the crushing square tube (71); one end of one group of the primary crushing rollers (72) penetrates the crushing square tube (71) and is driven by a fourth motor (73); one end of one group of the secondary crushing rollers (75) penetrates the crushing square tube (71) and is driven by a fifth motor (76).

10. The material grinding device according to claim 9, characterized in that: The inner cavity of the crushing square tube (71) is symmetrically provided with two groups of guide plates (74), the two groups of guide plates (74) are arranged between the primary crushing roller (72) and the secondary crushing roller (75), and the feed hopper (8) is arranged at the upper end of the crushing square tube (71).

Images