A plastic powder grinding device

Abstract

The utility model discloses a kind of plastic powder grinding equipment, it is related to plastic powder production technical field, by setting adjusting mechanism, rack;Crushing box;Two crushing rollers;Adjusting mechanism, it includes respectively fixedly connected on the first pulley of two crushing rollers, second pulley is rotatably and slidingly connected on crushing box, belt is arranged between two first pulleys and second pulley, rotatable connecting rotating member is rotatably connected on crushing box;When rotating member occurs rotation, one end of rotating member, by the abutting action of abutting groove and abutting rod, first sliding block will be driven to slide in first sliding groove, to make two crushing rollers mutually away, realize the distance between two crushing rollers is adjusted;Meanwhile, the other end of rotating member drives second pulley vertically upward to move, to ensure that belt can still drive two first pulleys and second pulley, avoid the distance between two crushing rollers when adjusting, two crushing rollers interference occurs, and the power between two crushing rollers is disconnected.

Description

Technical Field

[0001] This utility model relates to the field of plastic powder production technology, specifically to a plastic powder grinding device. Background Technology

[0002] Powder coating is the material used in powder coating processes. Simply put, it involves heating plastic powder at high temperatures and then spraying it onto the surface of a material using compressed air. Unused material can be recycled and reused, although the effect will be slightly less refined. Powder coating and paint are two different processes. Powder coating offers better results, lower cost, more accurate colors, and a more aesthetically pleasing appearance. Paint is more expensive, and its effect is generally less pronounced; only polyester or fluorocarbon paints can achieve truly good results. Doors and windows are typically used in environments with low corrosiveness, where the sealing properties of plastic are sufficient. Paint is used in environments with higher corrosiveness. Finally, powder-coated coatings are difficult to repair once damaged, while paint coatings are easier to repair.

[0003] For example, publication number CN221514769U, publication date August 13, 2024, titled "A Grinding Device for Plastic Sheets," includes a working box. A baffle is fixedly connected to the upper surface of the working box near its inner edge. A cutting mechanism is fixedly connected to the inner cavity of the right wall of the working box. A grinding mechanism is rotatably connected to the inner wall of the working box near its bottom. A sieving mechanism is fixedly connected to the lower surface of the working box, and four rectangularly distributed support legs are fixedly connected to the lower side of the sieving mechanism. This grinding device for plastic sheets utilizes a first motor to drive two front and rear first transmission shafts to rotate synchronously in opposite directions, thereby causing two sets of cutting blades to rotate in opposite directions. This causes the helical teeth on the cutting blades to compress the plastic sheet, resulting in initial pulverization. The small contact area between the cutting blades and the plastic sheet on both sides enhances the cutting effect and reduces energy consumption.

[0004] In existing technologies, plastic powder is ground in two ways: coarse grinding and fine grinding. In coarse grinding, as in the aforementioned patent, two crushing rollers are used to crush the plastic. However, a drawback is that because gears are installed at the ends of the two crushing rollers, and these gears mesh with each other to achieve transmission between the two rollers, the distance between them cannot be adjusted. This is because when the two rollers move away from each other, the gears disengage; and when they move closer together, the gears interfere with each other, resulting in uncontrollable crushing specifications. Utility Model Content

[0005] The purpose of this invention is to provide a plastic powder grinding device to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic powder grinding device, comprising: frame; The crushing box is fixedly connected to the frame; Two crushing rollers are respectively installed inside the crushing box; The adjusting mechanism includes a first pulley fixedly connected to two crushing rollers, a second pulley rotatably and slidably connected to the crushing box, a belt between the two first pulleys and the second pulley, and a rotating component rotatably connected to the crushing box, the two ends of the rotating component slidingly abutting against one of the first pulleys and the second pulley respectively. During the rotation of the rotating component, it drives the first pulley and the second pulley that are in contact with it to slide on the crushing box.

[0007] Furthermore, a first slider is rotatably connected to one of the first pulleys, and a first groove is provided on the crushing box for the first slider to slide.

[0008] Furthermore, a second slider is rotatably connected to the second pulley, and a second groove is provided on the crushing box for the second slider to slide.

[0009] Furthermore, the rotating part has abutment grooves at both ends, and abutment rods are fixedly connected to the first pulley and the second pulley, and the two abutment rods slide against the two abutment grooves respectively.

[0010] Furthermore, the rotating component is right-angled.

[0011] Furthermore, it also includes a drive mechanism, which includes a screw rotatably connected to the crushing box, the screw being screwed to the first slider, and a handwheel fixedly connected to the screw.

[0012] Compared with the prior art, the plastic powder grinding equipment provided by this utility model has an adjustment mechanism. When the rotating part rotates, one end of the rotating part, through the abutment action of the abutment groove and the abutment rod, will drive the first slider to slide in the first slide groove, thereby moving the two crushing rollers away from each other and adjusting the distance between the two crushing rollers. At the same time, the other end of the rotating part drives the second pulley to move vertically upward, so as to ensure that the belt can still transmit power to the two first pulleys and the second pulley, avoiding interference between the two crushing rollers and the disconnection of power between the two crushing rollers when adjusting the distance between them. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure from another angle, representing an embodiment of the present utility model. Figure 3 This is a top view structural diagram of the crushing box provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the frame removal device provided in an embodiment of the present invention; Figure 5 A schematic diagram of the crushing roller, adjusting mechanism, and driving mechanism provided in the embodiments of this utility model; Figure 6 A schematic diagram of the adjustment mechanism and drive mechanism provided in the embodiments of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Crushing box; 21. First chute; 22. Second chute; 3. Crushing roller; 4. Adjusting mechanism; 41. First pulley; 42. Second pulley; 43. Belt; 44. Rotating component; 441. Abutment groove; 45. First slider; 46. Second slider; 5. Drive mechanism; 51. Screw; 52. Handwheel. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Please see Figure 1-6 This utility model provides a plastic powder grinding device, comprising: a frame 1; a crushing box 2 fixedly connected to the frame 1; and two crushing rollers 3 respectively disposed within the crushing box 2; specifically, as shown in the embodiment of the present invention... Figure 4 As shown, one crushing roller 3 is rotatably connected to the crushing box 2, and the other crushing roller 3 is slidably and rotatably connected to the crushing box 2. Specifically, the sliding method is as follows: a first slider 45 is rotatably connected to a first pulley 41, and a first groove 21 is provided on the crushing box 2 for the first slider 45 to slide.

[0018] The adjusting mechanism 4 includes a first pulley 41 fixedly connected to two crushing rollers 3, and a second pulley 42 rotatably and slidably connected to the crushing box 2. Specifically, a second slider 46 is rotatably connected to the second pulley 42, and a second slide groove 22 is provided on the crushing box 2 for the second slider 46 to slide. A belt 43 is provided between the two first pulleys 41 and the second pulley 42, and a rotating component 44 is rotatably connected to the crushing box 2. Specifically, the rotating component 44 is right-angled. Both ends of the rotating component 44 slide against one of the first pulleys 41 and the second pulley 42, respectively. During the rotation of the rotating component 44, it drives the first pulley 41 and the second pulley 42 that abut against it to slide on the crushing box 2.

[0019] Understandably: The rotating part 44 has abutment grooves 441 at both ends, and abutment rods are fixedly connected to the first pulley 41 and the second pulley 42. The two abutment rods slide and abut against the two abutment grooves 441 respectively.

[0020] It should be noted that the reason why the two crushing rollers 3 are configured such that one is rotatably connected to the crushing box 2 and the other is rotatably and slidably connected to the crushing box 2, and the rotating part 44 is arranged at a right angle, is that when the rotating part 44 rotates, the crushing roller 3 and the second pulley 42 slide the same distance on the crushing box 2.

[0021] Preferably, it also includes a drive mechanism 5 for driving one of the crushing rollers 3 to slide on the crushing box 2. The drive mechanism includes a screw 51 rotatably connected to the crushing box 2, the screw 51 being screwed to the first slider 45, and a handwheel 52 fixedly connected to the screw 51.

[0022] In this embodiment, a motor is fixedly connected to the frame 1. The output end of the motor is coaxially fixedly connected to a crushing roller 3 that is rotatably connected to the crushing box 2. While the motor drives the crushing roller 3 to rotate, the crushing roller 3 is driven by the belt 43 to rotate another crushing roller 3.

[0023] Working principle: When in use, if it is necessary to adjust the distance between the two crushing rollers 3, turn the handwheel 52 to make the screw 51 rotate. During its rotation, through the screw connection with the first slider 45, the first slider 45 is driven to slide in the first slide groove 21, thereby making the two crushing rollers 3 move away from each other, so as to achieve the purpose of adjusting the distance between them.

[0024] Meanwhile, during the sliding of the first slider 45, the abutting rod and the abutting groove 441 abut against each other, causing the rotating part 44 to rotate clockwise around its rotation axis. During the rotation of the rotating part 44, the other end causes the second slider 46 to slide vertically upward in the second slide groove 22, thereby ensuring that the two first pulleys 41 and the second pulley 42 can still be transmitted while the total length of the belt 43 remains unchanged.

[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A powder grinding device, characterized in that, include: Rack (1); The crushing box (2) is fixedly connected to the frame (1); Two crushing rollers (3) are respectively installed inside the crushing box (2); The adjusting mechanism (4) includes a first pulley (41) fixedly connected to the two crushing rollers (3), a second pulley (42) rotatably and slidably connected to the crushing box (2), a belt (43) between the two first pulleys (41) and the second pulley (42), and a rotating part (44) rotatably connected to the crushing box (2). The two ends of the rotating part (44) slidably abut against one of the first pulleys (41) and the second pulley (42), respectively. During the rotation of the rotating part (44), it drives the first pulley (41) and the second pulley (42) that are in contact with it to slide on the crushing box (2).

2. The powder grinding equipment according to claim 1, characterized in that, One of the first pulleys (41) is rotatably connected to a first slider (45), and the crushing box (2) is provided with a first groove (21) for the first slider (45) to slide.

3. The plastic powder grinding equipment according to claim 1, characterized in that, The second pulley (42) is rotatably connected to the second slider (46), and the crushing box (2) is provided with a second groove (22) for the second slider (46) to slide.

4. The powder grinding equipment according to claim 1, characterized in that, The rotating part (44) has abutment grooves (441) at both ends. Abutment rods are fixedly connected to the first pulley (41) and the second pulley (42). The two abutment rods slide against the two abutment grooves (441) respectively.

5. The powder grinding equipment according to claim 1, characterized in that, The rotating part (44) is right-angled.

6. The powder grinding equipment according to claim 2, characterized in that, It also includes a drive mechanism (5), which includes a screw (51) rotatably connected to the crushing box (2), the screw (51) being screwed to the first slider (45), and a handwheel (52) being fixedly connected to the screw (51).

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