Pelletizer for preparing polypropylene composite material

Abstract

The utility model provides a pelletizer for preparing a polypropylene composite material, which belongs to the technical field of particle screening, aims to solve the problems that blocked screen holes of an existing vibrating screen need to be cleaned regularly, and the cleaning process is relatively tedious, and comprises a pelletizer main body, the vibrating screen is fixedly connected to the right side of the granulator main body; the first screen mesh is fixedly connected to the interior of the vibrating screen; the waste basket is connected to the outer side of the right end part of the connecting piece in a sliding manner; the anti-blocking assembly is arranged in the vibrating screen; and the waste material re-screening assembly is arranged in the waste material basket and in front of the waste material basket. Particles blocked in screen holes of the first screen are ejected out through movement of the brush, the screening effect of the first screen is guaranteed, particles entering the waste basket are screened again through the second screen arranged in the waste basket, and qualified particles are prevented from being treated as waste as much as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of particle screening, and more specifically, particularly relates to a granulator for preparing polypropylene composite materials. Background Art

[0002] Polypropylene (PP) composite material is a composite material made of polypropylene resin mixed with other materials. This material has the advantages of light weight, high strength, corrosion resistance, high temperature resistance, etc. It is widely used in automobile manufacturing, building materials, electronic products and other fields. The granulation production process of polypropylene composite material is to extrude the plastic fluid into plastic strips, then cut it with a pelletizer after cooling and drying, and finally screen out qualified particles through a vibrating screen.

[0003] Existing application number: CN202223448425.8. The utility model relates to the technical field of PP particle drying, and discloses a drying device for manufacturing PP particles, comprising a fixed plate, a supporting leg is fixedly installed at the bottom of the fixed plate, a conveyor belt is provided on the inner wall of the fixed plate, a running motor is provided on the outer wall of the fixed plate, a water filter net is provided on the top of the fixed plate, a water storage box is fixedly installed at the bottom of the fixed plate, a rotating plate is rotatably connected to the inner wall of the water storage box, a handle is fixedly installed on the outer wall of the rotating plate, a drying box is fixedly installed on the top of the fixed plate, and a protective curtain is provided on the outer wall of the drying box. The drying device for manufacturing PP particles improves the screening effect of the equipment for PP particles by arranging a water filter net in the equipment. Compared with the introduction equipment, the setting of the water filter net can not only filter and select the water, but also screen out impurities with smaller particles or broken PP particles.

[0004] Based on the above, when the vibrating screen is screening the particles cut out by the pelletizer, some larger unqualified particles and some particles with higher water content may block the sieve holes of the vibrating screen. The blocked sieve holes need to be cleaned regularly. Since the sieve has more sieve holes, the cleaning process is more cumbersome. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a granulator for preparing polypropylene composite materials, so as to solve the problem that when the existing vibrating screen screens the particles cut out by the pelletizer, some larger unqualified particles and some particles with higher water content may block the sieve holes of the vibrating screen, and the blocked sieve holes need to be cleaned regularly. Since the sieve has more sieve holes, the cleaning process is more cumbersome.

[0006] The purpose and effect of the granulator for preparing polypropylene composite materials of the utility model are achieved by the following specific technical means:

[0007] A granulator for preparing a polypropylene composite material, comprising a granulator body;

[0008] A feed inlet, the feed inlet being arranged on the top of the pelletizer body;

[0009] A first discharge port, the first discharge port being arranged on the right side of the feed port;

[0010] A vibrating screen, the vibrating screen is fixedly connected to the right side of the pelletizer body;

[0011] A connecting piece, wherein the connecting piece is an "L"-shaped structure, the left end of the connecting piece is fixedly connected to the right side of the vibrating screen, and a limiting hole is opened at the front end of the connecting piece;

[0012] A second discharge port, the second discharge port being arranged inside the vibrating screen;

[0013] A first screen, wherein the first screen is fixedly connected to the inside of the vibrating screen;

[0014] A waste basket, the waste basket being slidably connected to the outer side of the right end of the connecting member;

[0015] A forward and reverse motor, wherein the forward and reverse motor is fixedly connected to the front of the vibrating screen;

[0016] An anti-clogging component, wherein the anti-clogging component is arranged inside the vibrating screen;

[0017] A waste re-screening assembly is arranged inside and in front of the waste basket.

[0018] Furthermore, the anti-blocking component includes:

[0019] A first worm gear, the first worm gear is coaxially fixedly connected to the end of the rotating shaft of the forward and reverse motor;

[0020] a first lead screw, the first lead screw being rotatably connected to the interior of the vibrating screen;

[0021] The first worm wheel is coaxially fixedly connected to the right end of the first lead screw, and the first worm wheel is meshed with the first worm.

[0022] Furthermore, the anti-blocking component also includes:

[0023] Slide blocks, wherein two slide blocks are provided, the two slide blocks are symmetrically arranged, the two slide blocks are slidably connected to the front and rear sides of the vibrating screen, respectively, and the front slide block is threadedly connected to the first lead screw;

[0024] The brush is rotatably connected to the inner sides of the two sliding blocks, and a plurality of flexible burrs are arranged on the outer sides of the brush.

[0025] Furthermore, the anti-blocking component also includes:

[0026] A first gear, wherein two first gears are provided, and the two first gears are coaxially fixedly connected to the front and rear ends of the brush respectively;

[0027] The first rack is provided with two pieces, the two pieces of the first rack are dispersedly fixedly connected inside the vibration screen, and the two pieces of the first rack are respectively meshed with the two pieces of the first gear.

[0028] Furthermore, the waste rescreening component includes:

[0029] a second screen, the second screen being fixedly connected to the inside of the waste basket;

[0030] A discharge door is hingedly connected to the front of the waste basket.

[0031] Furthermore, the waste rescreening component also includes:

[0032] A fixed block, the fixed block being fixedly connected to the front of the waste basket;

[0033] A toggle latch, wherein the toggle latch is slidably connected inside the fixed block, and the upper end of the toggle latch is inserted into a limiting hole provided at the front end of the connecting piece;

[0034] The first spring has an upper end fixedly connected to the bottom of the toggle latch and a lower end fixedly connected to the fixing block.

[0035] Compared with the prior art, the utility model has the following beneficial effects:

[0036] First, the forward and reverse motor drives the slider to slide left and right, and then drives the brush to move left and right while rotating through the gear rack transmission mechanism, so that the particles blocked in the sieve holes of the first sieve are pushed out through the burrs on the surface of the brush, ensuring the screening effect of the first sieve, and the cleaning process is simple and fast.

[0037] Secondly, after the particles are screened by the first screen, some particles that meet the requirements may be brought to the waste basket. The waste basket will vibrate along with the vibrating screen through the connection of the connecting piece to screen the particles again. The particles that meet the requirements will continue to fall after being screened by the second screen and will be taken out through the discharge door later. The particles that do not meet the requirements will remain on the second screen.

[0038] The utility model discloses using the movement of the brush to push out the particles blocked in the screen holes of the first screen, thus ensuring the screening effect of the first screen, making the cleaning process simple and efficient, saving manpower, and using the second screen arranged in the waste basket to screen the particles entering the waste basket again, thus avoiding qualified particles from being treated as waste as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0040] Figure 2 It is a schematic diagram of the first screen structure of the utility model.

[0041] Figure 3 It is a schematic diagram of the first rack structure of the utility model.

[0042] Figure 4 It is a schematic diagram of the brush structure of the utility model.

[0043] Figure 5 It is a schematic diagram of the structure of a waste basket of the utility model.

[0044] Figure 6 It is a structural schematic diagram of the fixing block of the utility model.

[0045] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0046] 1. Pelletizer body; 101. Feed inlet; 102. First discharge outlet; 2. Vibrating screen; 201. Connector; 202. Second discharge outlet; 3. First screen; 4. Waste basket; 5. Forward and reverse motor; 501. First worm; 6. First lead screw; 601. First worm gear; 7. Slider; 8. Brush; 801. First gear; 9. First rack; 10. Second screen; 11. Discharge door; 12. Fixing block; 1201. Toggle latch; 1202. First spring. DETAILED DESCRIPTION

[0047] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0048] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 6 As shown:

[0049] The utility model provides a granulator for preparing a polypropylene composite material, comprising a granulator main body 1;

[0050] A feed inlet 101, which is arranged on the top of the pelletizer body 1;

[0051] A first discharge port 102, which is disposed on the right side of the feed port 101;

[0052] A vibrating screen 2, the vibrating screen 2 is fixedly connected to the right side of the pelletizer body 1;

[0053] Connector 201, which is an "L"-shaped structure, with the left end of the connector 201 fixedly connected to the right side of the vibrating screen 2, and a limiting hole is provided at the front end of the connector 201;

[0054] A second discharge port 202, which is disposed inside the vibrating screen 2;

[0055] A first screen 3, the first screen 3 is fixedly connected to the inside of the vibrating screen 2;

[0056] A waste basket 4, which is slidably connected to the outer side of the right end of the connecting member 201;

[0057] A forward and reverse motor 5, which is fixedly connected to the front of the vibrating screen 2;

[0058] An anti-clogging component is arranged inside the vibrating screen 2 .

[0059] Among them, the anti-blocking components include:

[0060] A first worm 501, the first worm 501 is coaxially fixedly connected to the end of the rotating shaft of the forward and reverse motor 5;

[0061] A first screw 6, the first screw 6 is rotatably connected to the inside of the vibrating screen 2;

[0062] The first worm gear 601 is coaxially fixedly connected to the right end of the first lead screw 6, and the first worm gear 601 is meshed with the first worm 501, so that the forward and reverse motor 5 drives the first lead screw 6 to rotate through the worm gear transmission mechanism formed by the meshing of the first worm gear 601 and the first worm 501.

[0063] Among them, the anti-blocking components also include:

[0064] Slider 7, two sliders 7 are provided, and the two sliders 7 are symmetrically arranged, and the two sliders 7 are slidably connected to the front and rear sides of the vibrating screen 2 respectively, and the front slider 7 is threadedly connected to the first lead screw 6;

[0065] The brush 8 is rotatably connected to the inner sides of the two sliders 7, and a plurality of flexible burrs are arranged on the outer sides of the brush 8, so that the first lead screw 6 drives the brush 8 to move left and right through the threaded transmission mechanism formed together with the slider 7 on the front side.

[0066] Among them, the anti-blocking components also include:

[0067] A first gear 801, wherein two first gears 801 are provided, and the two first gears 801 are coaxially fixedly connected to the front and rear ends of the brush 8 respectively;

[0068] The first rack 9, two first racks 9 are provided, and the two first racks 9 are dispersedly fixedly connected inside the vibrating screen 2, and the two first racks 9 are respectively meshed with the two first gears 801. The effect brought about is that through the gear rack transmission mechanism formed by the two first racks 9 and the two first gears 801 respectively meshing, the brush 8 moves left and right while rotating, so that the particles blocked in the sieve holes of the first sieve 3 are pushed out through the burrs on the surface of the brush 8.

[0069] The specific usage and function of this embodiment are as follows:

[0070] After the plastic strips of the polypropylene composite material enter from the feed port 101, they are cut into particles by the pelletizer body 1 and then come out from the first discharge port 102 and fall onto the first sieve 3. The vibrating screen 2 selects the particles that meet the requirements by driving the first sieve 3 to vibrate and discharges them from the second discharge port 202, and the particles that do not meet the requirements enter the waste basket 4. When it is found that the sieve holes of the first sieve 3 are blocked by some particles, the forward and reverse motor 5 is started, and the forward and reverse motor 5 drives the first lead screw 6 to rotate through the worm gear transmission mechanism formed by the meshing of the first worm gear 601 and the first worm 501. The first lead screw 6 drives the brush 8 to move left and right through the threaded transmission mechanism formed by the slider 7 on the front side. The gear rack transmission mechanism formed by the meshing of two first racks 9 and two first gears 801 respectively makes the brush 8 move left and right while rotating, so that the particles blocked in the sieve holes of the first sieve 3 are pushed out through the burrs on the surface of the brush 8, thereby ensuring the screening effect of the first sieve 3.

[0071] Embodiment 2: Based on Embodiment 1, as shown in the attached Figure 1 To Attachment Figure 6 As shown, a waste re-screening component is also included, which is arranged inside and in front of the waste basket 4.

[0072] Among them, the waste re-screening components include:

[0073] A second screen 10, the second screen 10 is fixedly connected to the inside of the waste basket 4;

[0074] The discharge door 11 is hinged in front of the waste basket 4. The function of the discharge door 11 is that when the vibrating screen 2 drives the first screen 3 to vibrate, it will also drive the waste basket 4 to vibrate through the connecting piece 201. The particles that meet the requirements continue to fall after being screened by the second screen 10, and the particles that do not meet the requirements remain on the second screen 10. The particles that meet the requirements can be taken out by opening the discharge door 11.

[0075] Among them, the waste re-screening components also include:

[0076] A fixed block 12, the fixed block 12 is fixedly connected to the front of the waste basket 4;

[0077] A toggle latch 1201, which is slidably connected to the interior of the fixed block 12, and the upper end of the toggle latch 1201 is inserted into a limiting hole provided at the front end of the connector 201;

[0078] The first spring 1202, the upper end of the first spring 1202 is fixedly connected to the bottom of the toggle pin 1201, and the lower end of the first spring 1202 is fixedly connected to the fixed block 12, so that the upper end of the toggle pin 1201 can be disengaged from the limiting hole opened at the front end of the connecting piece 201 by pulling down the toggle pin 1201, and then the waste basket 4 can be slid forward, so that the waste that does not meet the requirements on the second screen 10 can be poured out and transported conveniently.

[0079] The specific usage and function of this embodiment are as follows:

[0080] Some particles that meet the requirements may be brought down together and enter the waste basket 4. When the vibrating screen 2 drives the first screen 3 to vibrate, it will also drive the waste basket 4 to vibrate through the connecting piece 201. The particles that meet the requirements continue to fall after being screened by the second screen 10, and the particles that do not meet the requirements remain on the second screen 10. The particles that meet the requirements can be taken out by opening the discharge door 11, and the qualified particles are not treated as waste as much as possible; pulling down the toggle latch 1201 can make the toggle latch 1201 The upper end of the movable latch 1201 is disengaged from the limiting hole opened at the front end of the connecting piece 201, and then the waste basket 4 is slid forward, so as to facilitate the pouring out and transportation of the waste that does not meet the requirements on the second screen 10; after the waste is poured out, the movable latch 1201 is pulled down again, and then the waste basket 4 is inserted to the outside of the connecting piece 201, the movable latch 1201 is released, and the upper end of the movable latch 1201 is inserted into the limiting hole opened at the front end of the connecting piece 201 again to complete the fixation of the waste basket 4 and the vibrating screen 2.

Claims

1. A granulator for preparing a polypropylene composite material, comprising a granulator body, a feed port, a first discharge port, a vibrating screen, a connecting piece, a second discharge port, a first screen, a waste basket, a forward and reverse motor, an anti-blocking component and a waste re-screening component; the feed port is arranged on the top of the granulator body; the first discharge port is arranged on the right side of the feed port; characterized in that: The vibrating screen is fixedly connected to the right side of the pelletizer body; the connecting piece is an "L"-shaped structure, the left end of the connecting piece is fixedly connected to the right side of the vibrating screen, and a limiting hole is provided at the front end of the connecting piece; the second discharge port is arranged inside the vibrating screen; the first screen is fixedly connected inside the vibrating screen; the waste basket is slidably connected to the outside of the right end of the connecting piece; the forward and reverse motors are fixedly connected in front of the vibrating screen; the anti-blocking component is arranged inside the vibrating screen; the waste re-screening component is arranged inside and in front of the waste basket.

2. A granulator for preparing a polypropylene composite material as claimed in claim 1, characterized in that: The anti-blocking component includes: a first worm, a first lead screw and a first worm wheel; the first worm is coaxially fixedly connected to the end of the rotating shaft of the forward and reverse motor; the first lead screw is rotatably connected inside the vibrating screen; the first worm wheel is coaxially fixedly connected to the right end of the first lead screw, and the first worm wheel is meshed with the first worm.

3. A granulator for preparing a polypropylene composite material as claimed in claim 2, characterized in that: The anti-blocking component also includes: a slider and a brush; two sliders are provided, the two sliders are symmetrically arranged, the two sliders are respectively slidably connected to the front and rear sides of the vibrating screen, and the slider on the front side is threadedly connected to the first lead screw; the brush is rotatably connected to the inner sides of the two sliders, and a plurality of flexible burrs are arranged on the outer sides of the brush.

4. A granulator for preparing a polypropylene composite material as claimed in claim 3, characterized in that: The anti-blocking component also includes: a first gear and a first rack; the first gear is provided in two pieces, and the two first gears are coaxially fixedly connected to the front and rear ends of the brush respectively; the first rack is provided in two pieces, and the two first racks are dispersedly fixedly connected inside the vibrating screen, and the two first racks are respectively meshed with the two first gears.

5. A granulator for preparing a polypropylene composite material as claimed in claim 1, characterized in that: The waste re-screening component includes: a second screen and a discharge door; the second screen is fixedly connected to the inside of the waste basket; the discharge door is hingedly connected to the front of the waste basket.

6. A granulator for preparing a polypropylene composite material as claimed in claim 5, characterized in that: The waste re-screening component also includes: a fixed block, a toggle latch and a first spring; the fixed block is fixedly connected to the front of the waste basket; the toggle latch is slidably connected inside the fixed block, and the upper end of the toggle latch is inserted into the limiting hole opened at the front end of the connecting piece; the upper end of the first spring is fixedly connected to the bottom of the toggle latch, and the lower end of the first spring is fixedly connected to the fixed block.

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