CN115674492A - Plastic particle granulating device - Google Patents

Abstract

The invention discloses a plastic granule cutting device, which belongs to the technical field of plastic processing. Including: the side wall of the housing is provided with a feed port, the top of the housing is provided with an opening, the opening is provided with a top cover, the inside of the housing is provided with a guide plate, one end of the guide plate is connected to the top cover, and the guide plate The other end is connected with the housing, and the guide plate is provided with a discharge port; the transmission mechanism is arranged inside the housing, and the transmission mechanism is used to pull the plastic wire to move; the cutting roller is arranged inside the housing, and the cutting roller and the housing Rotational connection, there are multiple cutting knives evenly distributed on the cutting roller, the cutting roller is used to pull the plastic thread out of the guide plate through the transmission mechanism for cutting; the air injection pipeline is set on the cutting roller away from the discharge port On one side, the air injection pipeline extends to the outside of the casing and communicates with the air pump; the collection mechanism is arranged under the cutting roller. The invention can uniformly cut the plastic particles and effectively improve the service life of the cutter.

Description

A kind of plastic granule cutting device

technical field

The invention belongs to the technical field of plastic processing, and in particular relates to a plastic granule cutting device.

Background technique

Plastic granules are semi-finished products in the plastic molding processing industry. Plastic powder is mixed with various masterbatch powders and then melted to form a melt. The raw materials are extruded and drawn, and the molten plastic strands are cooled in a cooling pool before reuse. The tool cuts the wire and then forms the required plastic particles. Since the plastic wire and the blade are easy to deviate, the blade will cause wear and tear after long-term use. The friction between the blade and the plastic particles for a long time may cause the plastic wire to stick to the surface. On the blade, it is easy to cause uneven cutting of plastic particles during the granulation process, and it is easy to have uneven particle size and shape, and cause the quality of plastic particles to decrease. Therefore, how to provide a plastic that can evenly cut plastic particles Particle cutting device is an urgent problem to be solved by those skilled in the art.

Contents of the invention

In view of this, the present invention provides a plastic granule cutting device, which can evenly cut the plastic granules and improve the service life of the tool.

In order to achieve the above object, the present invention adopts the following technical solutions:

A plastic granule cutting device, comprising:

A housing, the side wall of the housing is provided with a feed port, the top of the housing is provided with an opening, the opening is provided with a top cover, the inside of the housing is provided with a guide plate, the guide One end of the plate is connected to the top cover, the other end of the guide plate is connected to the housing, and the guide plate is provided with a discharge port;

A transmission mechanism, the transmission mechanism is arranged inside the housing, and the transmission mechanism is used to pull the plastic thread to move;

A cutting roller, the cutting roller is arranged inside the housing, the cutting roller is connected to the housing in rotation, a plurality of cutting knives are evenly distributed on the cutting roller, and the cutting roller is used for Cutting the part where the plastic thread is pulled out of the guide plate through the transmission mechanism;

An air injection pipeline, the air injection pipeline is arranged on the side of the cutting roller away from the discharge port, the air injection pipeline extends to the outside of the housing and communicates with the air pump;

A collection mechanism, the collection mechanism is arranged below the cutting roller.

Preferably, the transmission mechanism includes a first rotating roller, a second rotating roller, a connecting piece and a lifting motor, the lifting motor is arranged on the top cover, the lifting rod of the lifting motor passes through the top cover and It is fixedly connected with the connector, both ends of the second roller are rotatably connected with the connector, one end of the first roller is rotatably connected with the housing, and the other end of the first roller One end extends to the outside of the casing and is connected to the output end of the rotating motor in transmission. There is a gap between the first rotating roller and the second rotating roller, and the gap is smaller than or equal to the diameter of the plastic thread.

Preferably, the collection mechanism includes a vibrating screen, a screen support, a first collection box and a second collection box, the screen support is fixedly connected to the housing, the vibrating screen is connected to the screen support Fixedly connected, the vibrating screen is arranged under the cutting roller, the vibrating screen extends to the opening of the first collection box, and the second collection box is arranged under the vibrating screen.

Preferably, the pelletizing device further includes a warm air pipeline, the warm air pipeline is arranged at the feed inlet, and the warm air pipeline extends to the outside of the housing and is connected with the heater.

Preferably, the pelletizing device further includes a water-absorbing roller, an extrusion plate and a flow guide pipeline, the water-absorbing roller is arranged between the feed inlet and the transmission mechanism, and both ends of the water-absorbing roller are It is rotatably connected with the housing, the water-absorbing roller is in contact with the plastic thread, the extruding plate has an arc-shaped structure, and the radius of the arc-shaped extruding plate is larger than the radius of the water-absorbing roller, and the extruding plate The bottom end of the pressure plate is provided with a leakage hole, one end of the diversion pipeline communicates with the leakage hole, and the other end of the diversion pipeline extends to the outside of the casing.

Preferably, a hinged door is provided at the bottom of the housing.

The beneficial effects of the present invention are:

The invention makes the plastic thread pass through the feed inlet, the transmission mechanism and the discharge port in sequence, which can effectively reduce the probability of plastic thread deviation. The uniformity of cutting plastic particles can be improved, and the cutting roller is provided with multiple cutting knives, and the multiple cutting knives rotate and cut sequentially. Compared with long-term use of a single blade for cutting, the wear effect on the blade can be reduced, and the cutting knives can The rotation of the cutting roller helps to reduce the temperature of the blade and reduce the possibility of plastic filaments sticking to the blade due to continuous cutting friction and temperature rise. The air pump is turned on at intervals to make the air injection pipeline spray air at intervals to blow the plastic particles adhering to the blade. It falls into the collection mechanism, and at the same time, it can also provide a certain cooling effect for the blade. Additional aspects and advantages of the invention will be set forth in part in the description which follows, and will become apparent from the description which follows.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic sectional view of the present invention;

Fig. 2 is the front schematic diagram of the present invention;

Fig. 3 is a schematic diagram of the cutting roller of the present invention.

Among them, in the figure:

1. Shell; 2. Feed port; 3. Top cover; 4. Guide plate; 5. Cutting roller; 6. Cutting knife; 7. Air injection pipeline; 8. First roller; 9. Second Roller; 10. Connector; 11. Lifting motor; 12. Vibrating screen; 13. Screen support; 14. First collection box; 15. Second collection box; 16. Warm air pipeline; 17. Flow guide Pipeline; 18. Squeeze plate; 19. Suction roller; 20. Hinged door.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to accompanying drawings 1-3, the present invention discloses a plastic granule cutting device, comprising:

Housing 1, the side wall of the housing 1 is provided with a feed port 2, the top of the housing 1 is provided with an opening, the opening is provided with a top cover 3, the inside of the housing 1 is provided with a guide plate 4, the guide plate 4 One end is connected to the top cover 3, the other end of the guide plate 4 is connected to the housing 1, and the guide plate 4 is provided with a discharge port; the top cover 3 is detachably connected, preferably by bolts, through the opening at the top of the housing 1 The installation of the internal mechanism of the housing 1 can be realized, the guide plate 4 is fixedly connected with the top cover 3, the number of discharge ports provided on the guide plate 4 is preferably the same as that of the feed ports 2, and each feed port 2 enters a Plastic threads prevent the plastic threads from sticking to each other.

Transmission mechanism, the transmission mechanism is set inside the housing 1, and the transmission mechanism is used to pull the plastic filaments to move; the transmission mechanism provides power for the plastic filaments entering the feed port 2, and the plastic filaments are pulled forward at a constant speed, and the plastic filaments are transported After the mechanism is pulled, they pass through the discharge port one by one and enter the cutting position.

Cutting roller 5, the cutting roller 5 is arranged inside the casing 1, the cutting roller 5 is connected with the casing 1 in rotation, a plurality of cutting knives 6 are evenly distributed on the cutting roller 5, and the cutting roller 5 is used to cut the plastic wire The strip is pulled out of the part outside the guide plate 4 through the transmission mechanism for cutting; six cutting knives 6 are preferably set, the cutting roller 5 rotates clockwise, and the cutting knives 6 rotate and cut in turn. Compared with long-term use of a single blade for cutting, the blade The wear effect is lower, and the cutting knife 6 rotates with the cutting roller 5, which helps to reduce the temperature of the cutting knife 6, and reduces the possibility that the continuous cutting friction heats up and causes the plastic thread to stick to the cutting knife 6. The cutting knife 6 preferably follows the The rotation direction of the cutting roller 5 is set obliquely, which can not only reduce the damage to the cutting knife 6 during the cutting process, but also can accept the plastic particles after cutting, transport the plastic particles to the side away from the discharge port, and then drop them to the collector. mechanism, to facilitate the screening of the collection mechanism, when the cutting knife 6 was positioned at the closest position to the guide plate 4, the tip of the cutting knife 6 had a gap from the guide plate 4, preventing the cutting knife 6 from being in hard contact with the guide plate 4 Cause the damage of cutter 6.

The air injection pipeline 7, the air injection pipeline 7 is arranged on the side of the cutting roller 5 away from the discharge port, the air injection pipeline 7 extends to the outside of the housing 1 and communicates with the air pump; the air injection pipeline is controlled to open indirectly, so that the air injection pipeline 7 is separated Jetting air with a certain impact can blow off the plastic particles adhered to the cutting knife 6 and make them fall into the collection mechanism, and at the same time, it can also play a certain cooling effect for the cutting knife 6 .

A collection mechanism, the collection mechanism is arranged below the cutting roller 5; the plastic particles are sieved and collected by the collection mechanism.

In this embodiment, preferably, the transmission mechanism includes a first roller 8, a second roller 9, a connector 10 and a lifting motor 11, the lifting motor 11 is arranged on the top cover 3, and the lifting rod of the lifting motor 11 passes through The top cover 3 is fixedly connected with the connector 10, both ends of the second roller 9 are rotatably connected with the connector 10, one end of the first roller 8 is rotatably connected with the housing 1, and the other end of the first roller 8 extends To the outside of the housing 1 and connected to the output end of the rotating motor, there is a gap between the first rotating roller 8 and the second rotating roller 9, the gap is less than or equal to the diameter of the plastic thread; during the rotation, the rotating motor drives The first rotating roller 8 rotates, and the rotating first rotating roller 8 drives the second rotating roller 9 to rotate through the plastic thread to realize the transmission of the plastic thread. The first rotating roller 8 and the second rotating roller 9 adopt softer materials , preferably adopt rubber material, control the lifting of the second rotating roller 9 by the lifting motor 11, when the plastic thread is all put on the first rotating roller 8, then control the second rotating roller 9 to descend and compress the plastic thread until The gap between the first turning roller 8 and the second turning roller 9 is slightly smaller than the diameter of the plastic thread, because the softer rubber material can prevent the plastic thread from being extruded and deformed. Meanwhile, the first turning roller 8 and the second turning roller Smaller grooves are also formed on the surface of the roller 9, thereby reducing the possibility of deviation of the plastic filaments during transportation.

In this embodiment, preferably, the collection mechanism includes a vibrating screen 12, a screen support 13, a first collection box 14 and a second collection box 15, the screen support 13 is fixedly connected to the housing 1, and the vibrating screen 12 is connected to the housing 1. The screen support 13 is fixedly connected, the vibrating screen 12 is arranged below the cutting roller 5, the vibrating screen 12 extends to the opening of the first collecting box 14, and the vibrating screen 12 is provided with a second collecting box 15 below; 12 Prevent the plastic particles from sticking to each other by vibration, improve the quality of the finished product of the plastic particles, and the vibrating screen 12 can also separate the powder in the cutting process from the smaller plastic particles into the second collection box 15 directly below. Larger plastic particles are separated into the first collection box 14, and the waste materials in the second collection box 15 can be recycled again to improve the utilization rate.

In this embodiment, preferably, the pelletizing device further includes a warm air pipeline 16, the warm air pipeline 16 is arranged at the feed inlet 2, and the warm air pipeline 16 extends to the outside of the housing 1 and is connected to the heater The plastic thread is usually cut directly after water cooling, and the warm air is blown through the warm air pipeline 16, which can adjust the temperature of the plastic thread to make it close to the Vicat softening point temperature, so as to ensure that the plastic thread is cut as much as possible. Thereby avoiding rupture, to improve the quality of the plastic particles after cutting, can also reduce the moisture on the surface of the plastic thread, and prevent the cutting knife 6 from being contaminated with more moisture.

In this embodiment, preferably, the pelletizing device further includes a water suction roller 19, an extruding plate 18 and a guide pipeline 17, the water suction roller 19 is arranged between the feed inlet 2 and the transmission mechanism, and the water suction roller 19 The two ends of both are connected with the housing 1 in rotation, the water-absorbing roller 19 is in contact with the plastic thread, the extruding plate 18 is an arc-shaped structure, and the radius of the arc-shaped extruding plate 18 is greater than the radius of the water-absorbing roller 19, and the extrusion The bottom end of the plate 18 is provided with a leak hole, and one end of the diversion pipeline 17 communicates with the leak hole, and the other end of the diversion pipeline 17 extends to the outside of the housing 1; the water-suction roller 19 is preferably made of a sponge material, which can effectively reduce the For the influence of the deformation of the plastic thread, the water-absorbing roller 19 is in contact with the plastic thread, which can absorb the excess moisture of the plastic thread. The moisture of 19 is squeezed out, and flows to diversion pipeline 17 through leakage hole, and moisture finally flows back in the cooling pool along diversion pipeline 17.

In this embodiment, preferably, the bottom of the housing 1 is provided with a hinged door 20, which is arranged through the bottom hinged door 20, so that the first collection box 14 and the second collection box 15 are easy to take out, preferably the first collection box 14 is arranged near The hinged door 20 is positioned to facilitate access to the first collection bin 14 .

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A plastic granules cuts grain device which characterized in that includes:

the device comprises a shell, a feed inlet is formed in the side wall of the shell, an opening is formed in the top of the shell, a top cover is arranged at the opening, a guide plate is arranged inside the shell, one end of the guide plate is connected with the top cover, the other end of the guide plate is connected with the shell, and a discharge outlet is formed in the guide plate;

the transmission mechanism is arranged in the shell and is used for pulling the plastic strand silk to move;

the cutting rotating roller is arranged in the shell, is rotatably connected with the shell, is uniformly provided with a plurality of cutting knives, and is used for cutting the plastic strand silk drawn out of the part outside the guide plate by the transmission mechanism;

the air injection pipeline is arranged on one side, away from the discharge port, of the cutting rotary roller, extends to the outer side of the shell and is communicated with the air pump;

and the collecting mechanism is arranged below the cutting rotating roller.

2. A plastic granule cutting device as claimed in claim 1, wherein the conveying mechanism includes a first roller, a second roller, a connecting member and a lifting motor, the lifting motor is disposed on the top cover, a lifting rod of the lifting motor passes through the top cover and is fixedly connected with the connecting member, both ends of the second roller are rotatably connected with the connecting member, one end of the first roller is rotatably connected with the housing, the other end of the first roller extends to the outside of the housing and is in transmission connection with an output end of the rotating motor, a gap is provided between the first roller and the second roller, and the gap is smaller than or equal to the diameter of the plastic strand.

3. A plastic pellet pelletizing device as claimed in claim 1, characterized in that said collecting mechanism comprises a vibrating screen, a screen support, a first collecting box and a second collecting box, said screen support is fixedly connected with said housing, said vibrating screen is fixedly connected with said screen support, said vibrating screen is disposed below said cutting roller, said vibrating screen extends to an opening of said first collecting box, and said second collecting box is disposed below said vibrating screen.

4. The plastic pellet cutting device as claimed in claim 1, further comprising a warm air pipeline disposed at the feeding port, the warm air pipeline extending to an outside of the housing and connected to the warm air blower.

5. The plastic particle granulating device according to claim 1, further comprising a water absorbing roller, an extrusion plate and a flow guide pipeline, wherein the water absorbing roller is arranged between the feed inlet and the conveying mechanism, both ends of the water absorbing roller are rotatably connected with the housing, the water absorbing roller is in contact with the plastic strand, the extrusion plate is of an arc-shaped structure, the radius of the arc-shaped extrusion plate is larger than that of the water absorbing roller, a leakage hole is formed in the bottom end of the extrusion plate, one end of the flow guide pipeline is communicated with the leakage hole, and the other end of the flow guide pipeline extends to the outside of the housing.

6. A plastic pellet cutting apparatus as claimed in claim 1, wherein said housing is provided with a hinged door at the bottom thereof.

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