A particle screening device for polypropylene production

Abstract

The utility model relates to granule screening technical field, and disclose a kind of granule screening device for polypropylene manufacturing, the granule screening device for polypropylene manufacturing, including box, two groups of vibration motor are fixedly connected to box outside, and the inside fixed connection of box is used for the oblique screen plate of polypropylene granule screening;Further including anti-splashing mechanism, anti-splashing mechanism includes the baffle frame of setting in box inner wall, and the outside equidistance of baffle frame bottom is equipped with multiple first contact blocks.Pushing the bolt insertion box inner wall, drive second contact block horizontal movement in the limited direction of limit block, contact first contact block bottom, make baffle frame extend box inner wall and enclose granule, rotate corresponding positioning peg fixed second contact block position in turn, and then fixed baffle frame, realize granule screening anti-splashing.

Description

Technical Field

[0001] This utility model relates to the field of particle screening technology, specifically a particle screening device for polypropylene manufacturing. Background Technology

[0002] Screening is necessary in polypropylene manufacturing because the produced granules may vary in size, contain impurities, or have irregular shapes. Screening is required after the polypropylene granules are produced to ensure product quality, making the granules uniform in size and shape, and meeting the quality requirements of polypropylene granules in different industrial fields.

[0003] When screening polypropylene granules, if too many granules accumulate inside the device, they can easily collide and splash into the surrounding environment during vibration screening, resulting in granule waste and environmental pollution. Therefore, there is an urgent need to develop a granule screening device for polypropylene manufacturing to solve these practical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a particle screening device for polypropylene manufacturing, which solves the problem of particle waste and environmental pollution caused by particle collisions and splashing into the surrounding environment during vibration screening.

[0005] To achieve the above objectives, this utility model provides a particle screening device for polypropylene manufacturing, comprising a housing, two sets of vibrating motors fixedly connected to the outside of the housing, and an inclined screen plate for screening polypropylene particles fixedly connected inside the housing.

[0006] It also includes a splash-proof mechanism, which includes a baffle frame disposed on the inner wall of the box, and multiple sets of first abutment blocks are equidistantly installed on the outer side of the bottom of the baffle frame. A through pin is movably installed on the bottom of the outer side of the box, and a second abutment block corresponding to the first abutment block is fixedly connected to one end of the pin. The second abutment block is in contact with the first abutment block. A limit block is fixedly connected to the bottom of the second abutment block, and the limit block is slidably adapted to the inner wall of the box.

[0007] Preferably, the bottom of the baffle frame is also provided with multiple sets of return springs, and the return springs are located at the center of the bottom of the baffle frame and are fixedly connected to the bottom of the inner wall of the box.

[0008] Preferably, the number of reset springs is at least three sets, and they are equidistantly aligned along the horizontal direction.

[0009] Preferably, it also includes a feeding angle adjustment mechanism, which includes a shaft frame disposed on both sides of the bottom of the box, a feeding plate movably installed on the inner side of the shaft frame, and two sets of connecting shafts fixedly installed on the side of the feeding plate away from the shaft frame, a connecting member movably installed on the inner side of the connecting shaft, and a driving component for driving the connecting member to move is also provided on the outer side of the box.

[0010] Preferably, the drive assembly includes two sets of servo motors disposed on the outside of the housing, with the servo motors located on the front of the housing away from the vibration motor. The output end of the servo motor is fixedly connected to a screw, and a threaded sleeve is installed on the outside of the screw. The bottom of the threaded sleeve is movably connected to the top of the connector through a shaft.

[0011] Preferably, a material collection box is fixed to one side of the box body, and a material inlet is provided on one side of the material collection box.

[0012] This invention provides a particle screening device for polypropylene manufacturing. Compared with the prior art, it has the following advantages.

[0013] 1. The operator pushes the pin into the inner wall of the box, causing the second contact block to move horizontally in the direction limited by the limit block, and abutting the bottom of the first contact block, so that the baffle frame extends out of the inner wall of the box to block the particles. Then, the corresponding positioning bolt is rotated to fix the position of the second contact block, thereby fixing the baffle frame, realizing the prevention of particle splashing during particle screening, and avoiding waste and pollution caused by excessive particle accumulation during vibration screening.

[0014] 2. The servo motor drives the screw to rotate in both directions, causing the screw sleeve to move horizontally. This, in turn, drives the connecting parts and the feeding plate to move in an arc around the shaft frame. The tilt angle of the feeding plate is adjusted to match the height of the external storage container, which assists in the feeding of particles after screening by the tilting screen. This avoids large particle drop and splashing waste due to differences in container height, reduces manual operation, and improves automation and stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 2 This is a partial schematic diagram of the anti-splash mechanism of this utility model;

[0017] Figure 3 This is a partial bottom view of the present invention;

[0018] Figure 4 This is a partial schematic diagram of the feeding angle adjustment mechanism of this utility model;

[0019] Figure 5 This is a bottom view of the housing of this utility model.

[0020] In the diagram: 1. Box body; 101. Vibration motor; 102. Inclined mesh plate; 2. Anti-splash mechanism; 201. Baffle frame; 202. First contact block; 203. Pin; 204. Second contact block; 205. Limiting block; 206. Return spring; 3. Feeding angle adjustment mechanism; 301. Shaft frame; 302. Feeding plate; 303. Connecting shaft; 304. Connecting piece; 305. Servo motor; 306. Screw; 307. Screw sleeve; 4. Collection box. Detailed Implementation

[0021] 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.

[0022] First implementation method:

[0023] refer to Figure 1-5 A particle screening device for polypropylene manufacturing includes a box 1, two sets of vibrating motors 101 are fixed to the outside of the box 1, and an inclined screen plate 102 for screening polypropylene particles is fixed inside the box 1.

[0024] It also includes a splash-proof mechanism 2, which includes a baffle frame 201 disposed on the inner wall of the housing 1, and multiple sets of first abutment blocks 202 are equidistantly installed on the outer side of the bottom of the baffle frame 201. A through pin 203 is movably installed on the bottom of the outer side of the housing 1, and a second abutment block 204 corresponding to the first abutment block 202 is fixedly connected to one end of the pin 203. The second abutment block 204 is in contact with the first abutment block 202. A limit block 205 is fixedly connected to the bottom of the second abutment block 204, and the limit block 205 is slidably adapted to the inner wall of the housing 1.

[0025] The bottom of the baffle frame 201 is also provided with multiple sets of return springs 206, and the return springs 206 are located at the center of the bottom of the baffle frame 201 and are fixedly connected to the bottom of the inner wall of the box 1. The number of return springs 206 is at least three sets, and they are equidistantly aligned along the horizontal direction. The material collection box 4 is fixedly connected to one side of the box 1, and the material collection box 4 has a feed port on one side.

[0026] When the vibration motor 101 operates, it generates vibration and transmits it to the top of the inclined screen plate 102. Polypropylene particles are then fed into the box 1 and onto the top of the inclined screen plate 102. The inclined screen plate 102, affected by the vibration, can screen the particles and allow particles that do not meet the screening requirements to be transported to the collection box 4 for storage through the inclined angle of the inclined screen plate 102. Particles that meet the screening requirements fall onto the top of the discharge plate 302 for discharge.

[0027] The operator pushes the pin 203 into the inner wall of the box 1, which causes the second abutment block 204 to move horizontally with the movement direction limited by the limit block 205, so that the second abutment block 204 abuts the bottom of the first abutment block 202, thereby causing the baffle frame 201 to extend out of the inner wall of the box 1, thereby safely blocking the particles that are vibrated and screened inside the box 1.

[0028] The operator then rotates the positioning bolt corresponding to the pin 203 to fix the moving position of the second contact block 204, thereby fixing the position of the baffle frame 201. This avoids the accumulation and excessive amount of particles to be screened inside the box 1, which would cause particles to collide and splash into the surrounding environment during vibration screening, resulting in particle waste and environmental pollution. This achieves the function of preventing splashing during particle screening.

[0029] When the baffle frame 201 needs to be stored, the operator pulls the pin 203 to move the second abutment block 204 away from the bottom of the first abutment block 202, and then the high elasticity of the return spring 206 drives the baffle frame 201 to retract into the inner wall of the box 1 to achieve storage.

[0030] Second implementation method:

[0031] The device is easily limited by the height of the external storage container, which can lead to excessive drop in particle output, resulting in particle splashing and waste.

[0032] refer to Figure 3-4 In the second embodiment of this utility model, it also includes a feeding angle adjustment mechanism 3. The feeding angle adjustment mechanism 3 includes a shaft frame 301 disposed on both sides of the bottom of the box 1. A feeding plate 302 is movably installed on the inner side of the shaft frame 301. Two sets of connecting shafts 303 are fixedly installed on the side of the feeding plate 302 away from the shaft frame 301. A connecting member 304 is movably installed on the inner side of the connecting shaft 303. A driving component for driving the connecting member 304 to move is also provided on the outer side of the box 1.

[0033] The drive assembly includes two sets of servo motors 305 disposed on the outside of the housing 1, and the servo motors 305 are located on the front of the housing 1 away from the vibration motor 101. The output end of the servo motor 305 is fixedly connected to a screw 306, and a screw sleeve 307 is threaded on the outside of the screw 306. The bottom of the screw sleeve 307 is movably connected to the top of the connector 304 through a shaft.

[0034] The servo motor 305 reverses and drives the screw 306 to rotate in the opposite direction. The screw 306 drives the screw sleeve 307 to move horizontally away from the shaft frame 301. The screw sleeve 307 drives the connecting piece 304 to move synchronously away from the shaft frame 301. The connecting piece 304 drives the feeding plate 302 to move downward in an arc shape around the shaft frame 301, so that the tilt angle of the feeding plate 302 gradually decreases. This assists in feeding the particles after they have been screened by the tilting screen 102. It is suitable for storage containers with low external heights and avoids the situation where the particle output drop is too large due to the height difference of the storage container. It solves the technical problem that the particle output is prone to splashing and waste due to the height difference of the storage container. It reduces manual operation and improves automation and stability.

[0035] Conversely, when the servo motor 305 rotates forward, it drives the screw 306 to rotate in the forward direction. The screw 306 drives the screw sleeve 307 to move horizontally towards the shaft frame 301. The screw sleeve 307 drives the connector 304 to move synchronously towards the shaft frame 301. The connector 304 drives the unloading plate 302 to move upward in an arc shape around the shaft frame 301, so that the tilt angle of the unloading plate 302 gradually returns to the initial state, realizing the reset of the unloading plate 302, so as to adapt to the subsequent switching of storage containers of different heights.

[0036] 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 particle screening device for polypropylene manufacturing, comprising a housing (1), wherein two sets of vibrating motors (101) are fixedly connected to the outside of the housing (1), and an inclined screen (102) for screening polypropylene particles is fixedly connected inside the housing (1), characterized in that: It also includes a splash-proof mechanism (2), which includes a baffle frame (201) disposed on the inner wall of the box (1), and multiple sets of first abutment blocks (202) are equidistantly installed on the outer side of the bottom of the baffle frame (201). A through pin (203) is movably installed on the bottom of the outer side of the box (1), and a second abutment block (204) corresponding to the first abutment block (202) is fixedly connected to one end of the pin (203). The second abutment block (204) is in contact with the first abutment block (202). A limit block (205) is fixedly connected to the bottom of the second abutment block (204), and the limit block (205) is slidably adapted to the inner wall of the box (1).

2. The particle screening device for polypropylene manufacturing according to claim 1, characterized in that: The bottom of the baffle frame (201) is also provided with multiple sets of reset springs (206), and the reset springs (206) are located at the center of the bottom of the baffle frame (201) and are fixedly connected to the bottom of the inner wall of the box (1).

3. The particle screening device for polypropylene manufacturing according to claim 2, characterized in that: The number of reset springs (206) is at least three sets, and they are equidistantly aligned along the horizontal direction.

4. The particle screening device for polypropylene manufacturing according to claim 1, characterized in that: It also includes a feeding angle adjustment mechanism (3), which includes a shaft frame (301) set on both sides of the bottom of the box (1). A feeding plate (302) is movably installed on the inner side of the shaft frame (301), and two sets of connecting shafts (303) are fixedly installed on the side of the feeding plate (302) away from the shaft frame (301). A connecting piece (304) is movably installed on the inner side of the connecting shaft (303), and a driving component for driving the connecting piece (304) to move is also provided on the outer side of the box (1).

5. A particle screening device for polypropylene manufacturing according to claim 4, characterized in that: The drive assembly includes two sets of servo motors (305) located on the outside of the housing (1), and the servo motors (305) are located on the front side of the housing (1) away from the vibration motor (101). The output end of the servo motor (305) is fixedly connected to a screw (306), and a screw sleeve (307) is threaded on the outside of the screw (306). The bottom of the screw sleeve (307) is movably connected to the top of the connector (304) through a shaft.

6. The particle screening device for polypropylene manufacturing according to claim 1, characterized in that: The box (1) is fixed to one side of the collection box (4), and the collection box (4) has a feed inlet on one side.

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