Classifying screen for pelletizer

Abstract

The utility model discloses a grading screen for a pelletizer in the technical field of screens, which comprises a shell, a feed inlet arranged at the top of the shell, a first discharge pipe arranged at the left side of the shell, a second discharge pipe arranged at the right side of the shell, a first fixing mechanism arranged at the lower part of the left side of the shell, and a support column arranged at the bottom of the shell, a bottom plate is arranged at the bottom of the supporting column, a first mounting groove is formed in the middle of the left side of the shell, a first fixing plate is arranged in the first mounting groove, a first pull rod is arranged on the first fixing plate, a second fixing mechanism is arranged on the upper portion of the right side of the shell, and a first screen is arranged on the first fixing plate. And a second mounting groove is formed in the middle of the right side of the shell, a second fixing plate is arranged in the second mounting groove, a second screen is arranged on the second fixing plate, and the first screen and the second screen are flexibly replaced according to the sizes of screened plastic particles.

Description

Technical Field

[0001] This utility model relates to the field of screen technology, specifically a grading screen for a granulator. Background Technology

[0002] After plastic granules are produced and shaped by a granulator, they are screened to classify them. For example, the granulator of the oil screening device disclosed in Chinese patent literature (application number: CN201821635356.2) has the following defects: 1. It is equipped with a single screen, which can only screen particles of the same size and cannot classify the particles; 2. The screen cannot be quickly replaced, which further limits the size of the particles to be screened and cannot screen particles of multiple sizes, greatly limiting the scope of use of the screen.

[0003] Therefore, we propose a grading screen for granulators. Utility Model Content

[0004] The purpose of this invention is to provide a grading screen for a granulator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grading screen for a granulator, comprising a shell, a feed inlet at the top of the shell, a first discharge pipe on the left side of the shell, a second discharge pipe on the right side of the shell, a first fixing mechanism at the lower left side of the shell, a support column at the bottom of the shell, a base plate at the bottom of the support column, a first mounting groove at the middle left side of the shell, a first fixing plate within the first mounting groove, a first pull rod on the first fixing plate, a second fixing mechanism at the upper right side of the shell, a first screen on the first fixing plate, a second mounting groove at the middle right side of the shell, a second fixing plate within the second mounting groove, a second screen on the second fixing plate, and a motor at the middle bottom of the shell, with a cam at the bottom of the motor.

[0006] Furthermore, the first fixing mechanism has a mounting hole in the middle, a first spring is installed in the mounting hole, a limit plate is installed on the top of the first spring, a through hole is installed on the upper part of the first fixing mechanism, and a locking rod is installed on the top of the limit plate.

[0007] Furthermore, the support column includes a sleeve, a second spring is provided inside the sleeve, a support rod is provided on the top of the second spring, and the top end of the support rod is fixedly connected to the bottom of the outer casing.

[0008] Furthermore, through holes are provided on the base plate.

[0009] Furthermore, the first and second screens are inclined, and the discharge channels in the middle of the first and second discharge pipes are also inclined.

[0010] Furthermore, the bottom end of the outer casing is inclined downwards, and a discharge hole is provided at the bottom of the outer casing, with the discharge hole located at the inclined end.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The motor drives the cam to rotate, causing the outer casing to vibrate, which in turn vibrates the first and second screens, screening the plastic granules. The plastic granules screened by the second screen gradually move to the left during vibration and are discharged through the first discharge pipe. The plastic granules that pass through the second screen fall onto the first screen. During vibration, the plastic granules screened by the first screen gradually move to the right and are discharged through the second discharge pipe. The plastic granules that pass through the first screen fall onto the bottom of the outer casing. During the vibration of the outer casing, they gradually move to the left to the discharge hole. The plastic granules are screened into three levels by the first and second screens, achieving graded screening of the plastic granules.

[0013] 2. Push the locking rod to retract it into the mounting hole, thereby releasing the locking rod from fixing the first fixed plate. Pull the first pull rod, which moves the first fixed plate, and the first screen mounted on the first fixed plate moves accordingly, completing the disassembly of the first screen. Disassemble the second screen in the same way. Install the replacement first and second screens into the housing through the first and second mounting slots. Release the locking rod, and the first spring pushes the limiting plate to move the locking rod, which then fixes the first fixed plate, completing the replacement of the first and second screens. Thus, this device allows for flexible replacement of the first and second screens according to the size of the plastic particles being screened. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an enlarged view of section A of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0018] Figure 5 This is an enlarged view of section B of this utility model;

[0019] Figure 6 This is a schematic diagram of the fixing mechanism of this utility model;

[0020] Figure 7 This is a schematic diagram of the support column structure of this utility model.

[0021] In the diagram: 1. Outer shell; 101. Discharge hole; 2. Inlet; 3. First discharge pipe; 4. Second discharge pipe; 5. First fixing mechanism; 51. Mounting hole; 52. First spring; 53. Limiting plate; 54. Through hole; 55. Clamping rod; 6. Support column; 61. Sleeve; 62. Second spring; 63. Support rod; 7. Base plate; 71. Through hole; 8. First mounting groove; 9. First fixing plate; 10. First pull rod; 11. Second fixing mechanism; 12. First screen; 13. Second mounting groove; 14. Second fixing plate; 15. Second screen; 16. Motor; 17. Cam. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-7This utility model provides a technical solution: a grading screen for a granulator, including a shell 1, a feed inlet 2 at the top of the shell 1, a first discharge pipe 3 on the left side of the shell 1, a second discharge pipe 4 on the right side of the shell 1, a first fixing mechanism 5 at the lower left side of the shell 1, a support column 6 at the bottom of the shell 1, a base plate 7 at the bottom of the support column 6, a first mounting groove 8 in the middle of the left side of the shell 1, a first fixing plate 9 inside the first mounting groove 8, a first pull rod 10 on the first fixing plate 9, a second fixing mechanism 11 in the upper right side of the shell 1, a first screen 12 on the first fixing plate 9, a second mounting groove 13 in the middle of the right side of the shell 1, a second fixing plate 14 inside the second mounting groove 13, a second screen 15 on the second fixing plate 14, and a motor 16 in the middle of the bottom of the shell 1, with a cam 17 at the bottom of the motor 16. The motor 16 screens the plastic granules produced by the granulator. The plastic granules produced by the granulator enter the shell 1 through the feed inlet 2, and the motor 16 is started simultaneously. 6 drives cam 17 to rotate, causing the outer shell 1 to vibrate, which in turn vibrates the first screen 12 and the second screen 15 to screen the plastic particles. The screen aperture diameter of the second screen 15 is larger than that of the first screen 12. The plastic particles screened by the second screen 15 gradually move to the left during vibration and are discharged through the first discharge pipe 3. A collection bucket is set below the first discharge pipe 3 to collect the plastic particles. The plastic particles that pass through the second screen 15 fall onto the first screen 12, and the first screen 12 screens them. During vibration, the plastic particles screened by the first screen 12 gradually move to the right and are discharged through the second discharge pipe 4. A collection bucket is set below the second discharge pipe 4 to collect the plastic particles. The plastic particles that pass through the first screen 12 fall into the bottom of the outer shell 1. During the vibration of the outer shell 1, they gradually move to the left to the discharge hole 101. A collection bucket is set below the discharge hole 101 to collect the plastic particles. The first screen 12 and the second screen 15 screen the plastic particles into three levels, achieving graded screening of the plastic particles.

[0024] Reference embodiment: A mounting hole 51 is provided in the middle of the first fixing mechanism 5, and a first spring 52 is provided in the mounting hole 51. A limit plate 53 is provided on the top of the first spring 52. A through hole 54 is provided on the upper part of the first fixing mechanism 5, and a locking rod 55 is provided on the top of the limit plate 53. Pushing the locking rod 55 causes it to retract into the mounting hole 51, thereby releasing the locking rod 55 from fixing the first fixing plate 9. Pulling the first pull rod 10 causes the first fixing plate 9 to move, and the first screen 12 installed on the first fixing plate 9 moves accordingly, completing the disassembly of the first screen 12. The second fixing mechanism 11 is connected to the first fixing mechanism. The structure is the same, and the second screen 15 is disassembled in the same way. After the first screen 12 and the second screen 15 are disassembled, the first screen 12 and the second screen 15 that need to be replaced are replaced. The replacement first screen 12 and the second screen 15 are installed into the outer shell 1 through the first mounting groove 8 and the second mounting groove 13. The locking rod 55 is released, the first spring 52 pushes the limiting plate 53 to drive the locking rod 55 to move, and the locking rod 55 fixes the first fixing plate 9, thus completing the replacement of the first screen 12 and the second screen 15. Thus, this device can flexibly replace the first screen 12 and the second screen 15 according to the size of the plastic particles being screened.

[0025] Reference embodiment: The support column 6 includes a sleeve 61, a second spring 62 is provided inside the sleeve 61, and a support rod 63 is provided on the top of the second spring 62. The top of the support rod 63 is fixedly connected to the bottom of the outer shell 1. When the motor 16 drives the cam 17 to rotate, the cam vibrates, and the outer shell 1 vibrates. The second spring 62 buffers the vibration between the support rod 63 and the sleeve 61, reducing the impact of the vibration of the support rod 63 on the sleeve 61. The base plate 7 is provided with a through hole 71, through which expansion bolts are installed. Holes are drilled in the ground, and the base plate 7 is fixed to the ground by the expansion bolts, thereby fixing the support column 6.

[0026] Reference embodiment: The first screen 12 and the second screen 15 are inclined, and the discharge channels in the middle of the first discharge pipe 3 and the second discharge pipe 4 are inclined. When the motor 16 drives the cam 17 to rotate and generate vibration, the first screen 12 is inclined. During the screening of plastic particles by the first screen 12, it gradually moves to the left and is discharged through the first discharge pipe 3 during the vibration. During the screening of plastic particles by the second screen 15, the plastic particles gradually move to the right and are discharged through the second discharge pipe 4.

[0027] Reference embodiment: The bottom end of the outer shell 1 is inclined downward, and the bottom of the outer shell 1 is provided with a discharge hole 101. The discharge hole 101 is located at the downward inclined end. The plastic particles after being screened by the first screen 12 and the second screen 15 are placed inside the bottom of the outer shell 1. The bottom of the outer shell 1 is inclined, and the plastic particles gradually move to the discharge hole 101 and are discharged through the discharge hole 101.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grading screen for a granulator, comprising a shell (1), characterized in that: The outer shell (1) is provided with a feed inlet (2) at the top, a first discharge pipe (3) on the left side of the outer shell (1), a second discharge pipe (4) on the right side of the outer shell (1), a first fixing mechanism (5) on the lower left side of the outer shell (1), a support column (6) at the bottom of the outer shell (1), a base plate (7) at the bottom of the support column (6), a first mounting groove (8) in the middle left side of the outer shell (1), a first fixing plate (9) in the first mounting groove (8), a first pull rod (10) on the first fixing plate (9), a second fixing mechanism (11) in the upper right side of the outer shell (1), a first screen (12) on the first fixing plate (9), a second mounting groove (13) in the middle right side of the outer shell (1), a second fixing plate (14) in the second mounting groove (13), a second screen (15) on the second fixing plate (14), a motor (16) in the middle bottom of the outer shell (1), and a cam (17) at the bottom of the motor (16).

2. The grading screen for a granulator according to claim 1, characterized in that: The first fixing mechanism (5) has a mounting hole (51) in the middle, a first spring (52) is provided in the mounting hole (51), a limit plate (53) is provided on the top of the first spring (52), a through hole (54) is provided on the upper part of the first fixing mechanism (5), and a locking rod (55) is provided on the top of the limit plate (53).

3. A grading screen for a granulator according to claim 1, characterized in that: The base plate (7) is provided with a through hole (71).

4. A grading screen for a granulator according to claim 1, characterized in that: The support column (6) includes a sleeve (61), a second spring (62) is provided inside the sleeve (61), a support rod (63) is provided on the top of the second spring (62), and the top of the support rod (63) is fixedly connected to the bottom of the outer shell (1).

5. A grading screen for a granulator according to claim 1, characterized in that: The first screen (12) and the second screen (15) are inclined, and the discharge channel in the middle of the first discharge pipe (3) and the second discharge pipe (4) is inclined.

6. A grading screen for a granulator according to claim 1, characterized in that: The bottom end of the outer shell (1) is inclined downward, and the bottom of the outer shell (1) is provided with a discharge hole (101), which is located at the downward inclined end.

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