Particle screening machine

Abstract

The utility model discloses a particle screening machine which comprises a shell, the top of the shell is communicated with a feeding box, three sets of screening plates are arranged in an inner cavity of the shell, three sets of installation cavities are formed in the left side wall of the inner cavity of the shell, and sliding rods are vertically arranged in the three sets of installation cavities. The left sides of the three screening plates are slidably connected to the three sliding rods through sliding blocks arranged on the sliding rods in a sleeving mode, the right sides of the screening plates are fixedly connected to the right side of an inner cavity of the shell, and springs are arranged on the upper sides and the lower sides of the connecting positions of the sliding rods and the sliding blocks. The mounting cavity is formed in the inner cavity of the shell, the sliding rods and the springs are arranged in the mounting cavity, then the sliding blocks arranged on the sliding rods in a sleeving mode are matched with the springs to achieve vibration of the screening plate, and particles falling on the screening plate are dispersed due to vibration of the springs; and therefore, the screening process of the particles on the screening plate is more complete, and the grading of the particles can be more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of particle screening, and in particular relates to a particle screening machine. Background Art

[0002] The definition of plastic refers to a material that has resin (or direct polymerization of monomers during processing) as the main component and additives such as plasticizers, fillers, lubricants, colorants, etc. as auxiliary components. It can flow and form during the processing. In the process of recycled plastic production, screening of plastic particles can facilitate subsequent material processing, increase the overall applicability during use, and avoid the impact of uneven melting between plastic particles on production.

[0003] The existing particle screening machine has the function of particle classification screening, but there is still the problem of incomplete particle screening. Therefore, it is urgent to propose a particle screening machine that can improve the particle screening effect. Utility Model Content

[0004] The utility model provides a particle screening machine which can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A particle screening machine, comprising:

[0007] A shell, the top of which is connected to a feed box, three groups of screening plates are arranged in the inner cavity of the shell, three groups of mounting cavities are opened on the left wall of the inner cavity of the shell, and sliding rods are vertically arranged in the three groups of mounting cavities, the left sides of the three groups of screening plates are slidably connected to the three groups of sliding rods through sliders sleeved on the sliding rods, the right side of the screening plates is fixedly connected to the right side of the inner cavity of the shell, and springs are arranged on both upper and lower sides of the connection between the sliding rod and the slider;

[0008] A closing door is used to cover the shell.

[0009] As a further improvement, the three groups of screening plates are, from top to bottom, a first screening plate, a second screening plate and a third screening plate, the aperture diameter of the screening holes on the first screening plate is larger than the aperture diameter of the screening holes of the second screening plate, and the aperture diameter of the screening holes of the second screening plate is larger than the aperture diameter of the screening holes of the third screening plate.

[0010] As a further improvement, the three groups of screening plates are all arranged obliquely in the inner cavity of the shell, and the inclination direction of the three groups of screening plates is from left to right.

[0011] As a further improvement, the rightmost sides of the three groups of screening plates are respectively flush with the three groups of discharge ports located on the right side of the shell.

[0012] As a further improvement, the inclination angles of the three groups of screening plates are 5°-8°.

[0013] As a further improvement, slide grooves are provided on both left and right sides of the bottom of the inner cavity of the shell, and a collection box is provided at the bottom of the inner cavity of the shell through a sliding block cooperating with the slide groove.

[0014] As a further improvement, two installation grooves are opened on the top of the shell, and the two installation grooves are respectively located on the front and rear sides of the feed box, and a screw is arranged in the two installation grooves. Two groups of installation plates corresponding to the two installation grooves are arranged on the left side of the outer surface of the shell, and drive motors are arranged on the two groups of installation plates. The output end of the drive motor is connected to one end of the screw through a coupling, and fixing blocks are threadedly connected to the two groups of screws, and cleaning devices are connected to the bottoms of the two groups of fixing blocks.

[0015] As a further improvement, the cleaning device comprises a cleaning plate and a cleaning brush, the top of the cleaning plate is connected to the fixing block, and the bottom of the cleaning plate is connected to the cleaning brush.

[0016] As a further improvement, the feed box is funnel-shaped as a whole.

[0017] As a further improvement, the closed door is detachably connected to the shell by bolts.

[0018] The beneficial effect of the utility model is as follows: by opening an installation cavity in the inner cavity of the shell, and arranging a slide rod and a spring in the installation cavity, and then realizing the vibration of the screening plate by means of a slider sleeved on the slide rod and cooperating with the spring, the particles falling on the screening plate are dispersed due to the vibration of the spring, thereby making the screening process of the particles on the screening plate more complete and also making the classification of the particles more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model after removing the closed door;

[0022] Figure 3It is a left side view of the utility model after removing the closed door;

[0023] Figure 4 It is a top view of the utility model without the closed door.

[0024] Reference numerals:

[0025] 1-housing, 2-enclosing door, 3-feeding box, 4-mounting plate, 5-driving motor, 6-discharging port, 7-screening plate, 8-collecting box, 9-slide, 10-cleaning device, 11-mounting cavity, 12-slide rod, 13-spring, 14-sliding block, 15-lead screw, 16-fixing block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0027] In the description of the present invention, the terms "upper", "lower", "above", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] Reference Figure 1-4 As shown, this embodiment provides a particle screening machine, comprising:

[0029] A shell 1, the top of which is connected to a feed box 3, three groups of screening plates 7 are arranged in the inner cavity of the shell 1, three groups of mounting cavities 11 are opened on the left wall of the inner cavity of the shell 1, and slide bars 12 are vertically arranged in the three groups of mounting cavities 11, the left sides of the three groups of screening plates 7 are slidably connected to the three groups of slide bars 12 through slide bars 14 sleeved on the slide bars 12, the right side of the screening plates 7 is fixedly connected to the right side of the inner cavity of the shell 1, and springs 13 are arranged on both upper and lower sides of the connection between the slide bars 12 and the slide bars 14;

[0030] A closed door 2 is used to cover the housing 1 .

[0031] By opening an installation cavity 11 in the inner cavity of the shell 1, and arranging a slide rod 12 and a spring 13 in the installation cavity 11, and then using a slider 14 sleeved on the slide rod 12 to cooperate with the spring 13 to realize the vibration of the screening plate 7, the particles falling on the screening plate 7 are dispersed due to the vibration of the spring 13, thereby making the screening process of the particles on the screening plate 7 more complete and the classification of the particles more accurate.

[0032] Furthermore, the three groups of screening plates 7 are, from top to bottom, the first screening plate 7, the second screening plate 7 and the third screening plate 7, the aperture of the screening holes on the first screening plate 7 is larger than the aperture of the screening holes of the second screening plate 7, and the aperture of the screening holes of the second screening plate 7 is larger than the aperture of the screening holes of the third screening plate 7.

[0033] By setting three groups of the screening plates 7, and the apertures of the screening holes of the three groups of screening plates 7 gradually decrease from top to bottom, four classifications of the particles are achieved, thereby better achieving the classification and screening of the particles.

[0034] Furthermore, the three groups of screening plates 7 are all tiltedly arranged in the inner cavity of the shell 1, and the tilting direction of the three groups of screening plates 7 is from left to right.

[0035] Furthermore, the rightmost sides of the three groups of screening plates 7 are respectively flush with the three groups of discharge ports 6 located on the right side of the shell 1 .

[0036] Furthermore, the inclination angles of the three groups of screening plates 7 are 5°-8°.

[0037] By tilting the three groups of screening plates 7 and making the rightmost side of the screening plates 7 flush with the discharge port 6, the particles on the screening plates 7 move toward the discharge port 6 due to their own gravity, thereby achieving automatic collection of the particles.

[0038] Furthermore, slide grooves 9 are provided on both left and right sides of the bottom of the inner cavity of the shell 1 , and a collection box 8 is provided at the bottom of the inner cavity of the shell 1 through a sliding block cooperating with the slide grooves 9 .

[0039] By arranging the collecting box 8 at the bottom of the inner cavity of the shell 1 and cooperating with the sliding block and the sliding groove 9, the collecting box 8 can be pulled out as a whole, thereby making the collection and treatment of the particle waste more convenient.

[0040] Furthermore, two installation grooves are opened on the top of the shell 1, and the two installation grooves are respectively located on the front and rear sides of the feed box 3. A lead screw 15 is arranged in each of the two installation grooves. Two groups of installation plates 4 corresponding to the two installation grooves are arranged on the left side of the outer surface of the shell 1. A driving motor 5 is arranged on the two groups of installation plates 4. The output end of the driving motor 5 is connected to one end of the lead screw 15 through a coupling. A fixing block 16 is threadedly connected to the two groups of the lead screws 15, and a cleaning device 10 is connected to the bottom of the two groups of the fixing blocks 16.

[0041] Furthermore, the cleaning device 10 includes a cleaning plate and a cleaning brush, the top of the cleaning plate is connected to the fixing block 16, and the bottom of the cleaning plate is connected to the cleaning brush.

[0042] In this embodiment, the cleaning brush can directly contact the first screening plate 7. By setting a mounting groove on the top of the shell 1 and setting a screw 15 in the mounting groove, and then cooperating with a fixing block 16 threadedly connected to the screw 15 and a driving motor 5 for driving the screw 15 to rotate, the overall movement of the cleaning device 10 is realized, and then the cleaning device 10 cleans the surface of the screening plate 7, so that the particles stuck on the screening plate 7 can fall off through the extrusion force of the cleaning device 10, and the particles that have not fallen off can also be swept out to the discharge port 6.

[0043] Furthermore, the feed box 3 is funnel-shaped as a whole.

[0044] Furthermore, the closed door 2 is detachably connected to the housing 1 via bolts.

[0045] The working principle of this utility model:

[0046] The particles to be screened enter the inner cavity of the shell 1 through the feed box 3 and fall onto the first screening plate 7. The gravity of the particles to be screened will cause the slider 14 on the slide bar 12 to move along the direction of the slide bar 12, and then reset due to the elastic force of the spring 13, thereby causing the first screening plate 7 to vibrate as a whole, thereby causing the particles falling on the first screening plate 7 to vibrate, thereby making the screening process of the particles on the first screening plate 7 more complete. The particles that have not passed the first screening plate 7 move to the discharge port 6 due to their own gravity, thereby completing the first screening.

[0047] The screening process of the second screening plate 7 and the third screening plate 7 is similar to that of the first screening plate 7, so it will not be described in detail here.

[0048] After the screening of the third screening plate 7 is completed, the driving motor 5 drives the screw 15 to rotate, so that the fixed block 16 moves along the screw 15, and then drives the cleaning device 10 to move. Because the cleaning brush on the cleaning device 10 can directly contact the first screening plate 7, the pressure of the cleaning brush can make the particles stuck on the first screening plate 7 enter the second screening plate 7 smoothly, or the cleaning brush can not pass through the first screening plate 7 and sweep the particles into the discharge port 6.

[0049] After the cleaning device 10 is reset, the closed door 2 is opened, and the collecting box 8 is taken out through the cooperation of the sliding block and the chute 9, and the particles in the collecting box 8 are collected, and then put back into the collecting box 8, thus completing a particle screening process.

[0050] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A particle screening machine, characterized in that: include: A shell, the top of which is connected to a feed box, three groups of screening plates are arranged in the inner cavity of the shell, three groups of mounting cavities are opened on the left wall of the inner cavity of the shell, and sliding rods are vertically arranged in the three groups of mounting cavities, the left sides of the three groups of screening plates are slidably connected to the three groups of sliding rods through sliders sleeved on the sliding rods, the right side of the screening plates is fixedly connected to the right side of the inner cavity of the shell, and springs are arranged on both upper and lower sides of the connection between the sliding rod and the slider; A closing door is used to cover the shell.

2. The particle screening machine according to claim 1, characterized in that: The three groups of screening plates are, from top to bottom, the first screening plate, the second screening plate and the third screening plate. The aperture of the screening holes on the first screening plate is larger than that of the second screening plate, and the aperture of the screening holes on the second screening plate is larger than that of the third screening plate.

3. The particle screening machine according to claim 2, characterized in that: The three groups of screening plates are all tiltedly arranged in the inner cavity of the shell, and the tilting direction of the three groups of screening plates is from left to right.

4. The particle screening machine according to claim 3, characterized in that: The rightmost sides of the three groups of screening plates are respectively flush with the three groups of discharge ports located on the right side of the shell.

5. The particle screening machine according to claim 4, characterized in that: The inclination angles of the three groups of screening plates are 5°-8°.

6. The particle screening machine according to claim 1, characterized in that: Slide grooves are arranged on both left and right sides of the bottom of the inner cavity of the shell, and a collection box is arranged at the bottom of the inner cavity of the shell through a sliding block cooperating with the slide grooves.

7. The particle screening machine according to claim 1, characterized in that: Two mounting grooves are provided on the top of the shell, and the two mounting grooves are respectively located at the front and rear sides of the feed box, and screws are arranged in the two mounting grooves. Two groups of mounting plates corresponding to the two mounting grooves are arranged on the left side of the outer surface of the shell, and driving motors are arranged on the two groups of mounting plates, and the output end of the driving motor is connected to one end of the screw through a coupling, and fixing blocks are threadedly connected to the two groups of screws, and cleaning devices are connected to the bottoms of the two groups of fixing blocks.

8. The particle screening machine according to claim 7, characterized in that: The cleaning device comprises a cleaning plate and a cleaning brush, the top of the cleaning plate is connected to the fixing block, and the bottom of the cleaning plate is connected to the cleaning brush.

9. The particle screening machine according to claim 1, characterized in that: The feed box is funnel-shaped as a whole.

10. The particle screening machine according to claim 1, characterized in that: The closed door is detachably connected to the shell body via bolts.

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