Molding powder crushing and screening device

Abstract

The utility model relates to the field of molding powder production devices, and discloses a molding powder crushing and screening device which comprises a base, the top of the base is connected with a bearing plate through a plurality of vibration springs, the outer wall of the bearing plate is connected with a mounting frame through a splicing assembly, and the interior of the mounting frame is connected with a net rack through a dismounting assembly. And a screen is arranged in the net frame, a discharging groove is formed in the mounting frame, and a discharging pipe is fixedly connected to the interior of the discharging groove. According to the multi-stage screening device, the mounting frame can be placed above the bearing plate through matching of the positioning pins and the positioning rods, and the positioning pins and the positioning rods are fixed through the fixing bolts, so that the effect of multi-stage screening of molding powder is achieved; and through cooperation of a dismounting rod, a clamping ball and a reset spring, mounting and dismounting of the mounting frame can be achieved, so that the specification of the screen in the mounting frame can be adjusted, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic powder production devices, in particular to a plastic powder crushing and screening device. Background Art

[0002] Plastic powder is a material used in the plastic spraying process. Simply put, it is plastic powder that has been heated to a high temperature and then sprayed onto the surface of the material using compressed air. The production of plastic powder requires a series of complex steps. After production is completed, it needs to be bagged. Before bagging, the plastic powder needs to be screened to separate plastic powder particles of different sizes for subsequent bagging. With the continuous development of the plastics industry, the demand for plastic powder is increasing. During the production and use process of plastic powder, it is often necessary to crush and screen to obtain powder of a specific particle size to meet different application requirements. During the plastic powder processing process, it is usually necessary to crush and grind the plastic flakes, and then screen the ground particles. The application scenarios vary depending on the size of the screened plastic powder particles. Plastic powder is mostly processed through plastic flake crushing, grinding and screening equipment.

[0003] Existing plastic powder screening devices can only screen plastic powder once, and the size of the screened plastic powder cannot well meet the packaging requirements. In addition, when screening the plastic powder, the screening device has low working efficiency and the screening process is slow. When replacing or removing the screen on the traditional screening machine, many parts need to be removed, making disassembly inconvenient and time-consuming. To address this technical problem, the present application proposes a plastic powder crushing and screening device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a plastic powder crushing and screening device. The mounting frame can be placed above the load-bearing plate by cooperating with the positioning pin and the positioning rod, and the positioning pin and the positioning rod are fixed by fixing bolts, thereby achieving the effect of multi-stage screening of the plastic powder. The mounting frame can be installed and disassembled by cooperating with the disassembly rod, the locking ball and the reset spring, so that the specifications of the screen inside the mounting frame can be adjusted, thereby improving the applicability of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic powder crushing and screening device, comprising a base, the top of the base is connected to a load-bearing plate through a plurality of vibration springs, the outer wall of the load-bearing plate is connected to a mounting frame through an assembly component, the interior of the mounting frame is connected to a grid through a disassembly component, a screen is provided inside the grid, a discharge trough is opened inside the mounting frame, and a discharge pipe is fixedly connected to the interior of the discharge trough.

[0006] Furthermore, the assembly component includes a plurality of positioning rods fixedly connected to the outer wall of the load-bearing plate, and the plurality of positioning rods are evenly distributed on the outer wall of the load-bearing plate. The interior of the plurality of positioning rods is slidably connected with positioning pins, and the plurality of positioning pins and the surface of the positioning rods are provided with fixing grooves, and the interior of the fixing grooves is threadedly connected with fixing bolts.

[0007] Furthermore, the disassembly and assembly component includes a plurality of compression grooves opened on the outer periphery of the grid, and the plurality of compression grooves are each provided with a snap-fitting ball inside, and the plurality of snap-fitting balls are each connected to the inner wall of the compression groove via a return spring.

[0008] Furthermore, a plurality of engaging grooves are provided on the inner wall of the lower end of the mounting frame, and the plurality of engaging balls are all arranged inside the engaging grooves.

[0009] Furthermore, a plurality of disassembly rods are provided on the outer wall of the mounting frame, and the disassembly rods are threadedly connected to the inside of the engaging groove.

[0010] Furthermore, a vibration motor is provided at the bottom of the load-bearing plate, and the vibration motor is located between the base and the load-bearing plate.

[0011] Furthermore, a dust cover is provided on the top of the mounting frame.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the present invention, the mounting frame can be placed above the load-bearing plate by cooperating with the positioning pin and the positioning rod, and then the positioning pin and the positioning rod are fixed together by fixing bolts, thereby fixing the mounting frame to the load-bearing plate. In this way, the mounting frame can be installed on the load-bearing plate, thereby achieving the effect of multi-stage screening of plastic powder and improving the screening efficiency of the device.

[0014] 2. In the present invention, the mounting frame can be installed and disassembled through the cooperation between the disassembly rod, the locking ball and the return spring, so that the specifications of the screen inside the mounting frame can be adjusted, so that the device can control the screening degree of the plastic powder to meet the production needs, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of a plastic powder crushing and screening device proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the assembly structure of a plastic powder crushing and screening device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the mounting frame of a plastic powder crushing and screening device proposed in the utility model;

[0018] Figure 4 This is a schematic diagram of the disassembly and assembly structure of a plastic powder crushing and screening device proposed in the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Base; 2. Load-bearing plate; 3. Disassembly and assembly rod; 4. Discharge pipe; 5. Positioning rod; 6. Dust cover; 7. Mounting bracket; 8. Vibration spring; 9. Vibration motor; 10. Fixing bolt; 11. Positioning pin; 12. Grid; 13. Screen; 14. Snap ball; 15. Return spring; 16. Discharge chute. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a plastic powder crushing and screening device, including a base 1, the top of the base 1 is connected to a bearing plate 2 through a plurality of vibration springs 8, the outer wall of the bearing plate 2 is fixedly connected to a plurality of positioning rods 5, and the plurality of positioning rods 5 are evenly distributed on the outer wall of the bearing plate 2, and the interior of the plurality of positioning rods 5 are slidably connected with positioning pins 11, and the side near the plurality of positioning pins 11 is fixedly connected with a mounting bracket 7, and the surfaces of the plurality of positioning pins 11 and the positioning rods 5 are provided with fixing grooves, and the fixing grooves are internally threaded with fixing bolts 10, and the interior of the mounting bracket 7 is connected to a grid 12 through a snap-fit ​​ball 14, and a screen 13 is provided inside the grid 12, and a discharge trough 16 is provided inside the mounting bracket 7, and a discharge pipe 4 is fixedly connected to the discharge trough 16. A vibration motor 9 is provided at the bottom of the bearing plate 2, and the vibration motor 9 is located between the base 1 and the bearing plate 2. A dust cover 6 is provided on the top of the upper mounting bracket 7;

[0024] Specifically, the vibration spring 8 can connect the base 1 and the load-bearing plate 2, and can improve the screening efficiency of the screen 13 for plastic powder. By placing the positioning pin 11 inside the positioning rod 5, the mounting frame 7 installed on the load-bearing plate 2 can be pre-fixed, and at the same time, the stability of the mounting frame 7 when screening plastic powder is increased. The fixing bolt 10 can fix the positioning pin 11 and the positioning rod 5, so as to ensure the position of the mounting frame 7 on the load-bearing plate 2. The plastic powder particles intercepted by the screen 13 will move to the discharge trough 16 due to the vibration force, and then be discharged from the discharge pipe 4, which is convenient for their centralized collection. The vibration motor 9 can provide vibration force for the device, effectively prevent plastic powder from clogging the screen 13, and improve the screening efficiency of the device. The dust cover 6 can prevent workers from dust flying when putting materials.

[0025] Reference Figure 4 and Figure 5 The outer periphery of the grid 12 is provided with a plurality of compression grooves, each of which is provided with a snap-fitting ball 14. The snap-fitting balls 14 are connected to the inner wall of the compression groove via a return spring 15. The inner wall of the lower end of the mounting frame 7 is provided with a plurality of snap-fitting grooves, each of which is provided with a plurality of snap-fitting balls 14. The outer wall of the mounting frame 7 is provided with a plurality of disassembly rods 3, which are threadedly connected to the inner wall of the snap-fitting groove.

[0026] Specifically, when installing and replacing the screen 13, the snap-fitting ball 14 can be squeezed into the compression groove by external force, so that the grid 12 can move inside the mounting frame 7, and the grid 12 squeezed into the compression groove can be pushed into the snap-fitting groove by the return spring 15, thereby fixing the grid 12 to the inside of the mounting frame 7, and the disassembly rod 3 in the snap-fitting groove can provide extrusion force for the snap-fitting ball 14 so that it is compressed into the compression groove, thereby realizing the disassembly and replacement of the screen 13.

[0027] Working principle: First, select the screen 13 of different specifications according to the production needs, install the screen 13 and the grid frame 12 connected to it from the bottom of the mounting frame 7 to the inside of the mounting frame 7, and rotate the disassembly rod 3 to make the space inside the snap groove able to accommodate the size of the snap ball 14, and then press the grid frame 12 to squeeze the snap ball 14 into the compression groove, so that the grid frame 12 moves inside the mounting frame 7. When the snap ball 14 reaches the position of the snap groove, the return spring 15 will push the snap ball 14 into the inside of the snap groove through its own force. , so that the screen 13 is installed on the mounting frame 7, and then the screen 13 is installed on the load-bearing plate 2 in sequence according to the screening accuracy, and the positioning pin 11 is aligned with the upper end of the positioning rod 5, so that the positioning pin 11 slides onto the load-bearing plate 2 along the trajectory of the positioning rod 5. When the mounting frame 7 contacts the load-bearing plate 2, the mounting groove on the positioning pin 11 will also be aligned with the mounting groove on the positioning rod 5. At this time, the fixing bolt 10 is screwed into the mounting groove to fix the two together, and then the vibration motor 9 is started to drive the mounting frame 7 to screen the internal plastic powder.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic powder crushing and screening device, comprising a base (1), characterized in that: The top of the base (1) is connected to a load-bearing plate (2) via a plurality of vibration springs (8); the outer wall of the load-bearing plate (2) is connected to a mounting frame (7) via an assembly component; the interior of the mounting frame (7) is connected to a grid (12) via a disassembly component; a screen (13) is provided inside the grid (12); a discharge trough (16) is provided inside the mounting frame (7); and a discharge pipe (4) is fixedly connected inside the discharge trough (16).

2. The plastic powder crushing and screening device according to claim 1, characterized in that: The assembly assembly includes a plurality of positioning rods (5) fixedly connected to the outer wall of the load-bearing plate (2), the plurality of positioning rods (5) are evenly distributed on the outer wall of the load-bearing plate (2), the interiors of the plurality of positioning rods (5) are all slidably connected with positioning pins (11), the surfaces of the plurality of positioning pins (11) and the positioning rods (5) are both provided with fixing grooves, and the interiors of the fixing grooves are threadedly connected with fixing bolts (10).

3. The plastic powder crushing and screening device according to claim 1, characterized in that: The disassembly and assembly assembly comprises a plurality of compression grooves opened on the outer periphery of the grid (12), a plurality of the compression grooves are provided with engaging balls (14) inside, and the plurality of the engaging balls (14) are connected to the inner wall of the compression groove via a return spring (15).

4. The plastic powder crushing and screening device according to claim 3, characterized in that: A plurality of engaging grooves are provided on the inner wall of the lower end of the mounting frame (7), and the plurality of engaging balls (14) are all arranged inside the engaging grooves.

5. The plastic powder crushing and screening device according to claim 4, characterized in that: A plurality of disassembly rods (3) are provided on the outer wall of the mounting frame (7), and the disassembly rods (3) are threadedly connected to the interior of the engaging groove.

6. The plastic powder crushing and screening device according to claim 1, characterized in that: A vibration motor (9) is provided at the bottom of the load-bearing plate (2), and the vibration motor (9) is located between the base (1) and the load-bearing plate (2).

7. The plastic powder crushing and screening device according to claim 1, characterized in that: A dust cover (6) is provided on the top of the mounting frame (7).

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