CN217454863U - Polypropylene insulation double-screw extruder unit for direct current cable - Google Patents

Abstract

The utility model discloses a be used for insulating twin-screw of polypropylene to extrude unit for direct current cable, which comprises an outer shell, the connecting plate is installed to one side of shell, the connecting plate is kept away from one side of shell and is installed the motor, the drive end fixedly connected with second screw rod of motor. Through shell, feeder hopper and the motor isotructure that sets up, reduce staff's work load, be equipped with first inner tube and second inner tube in the shell inside, and first inner tube is inside to be equipped with first screw rod. The inside second screw rod that is equipped with of second inner tube to can realize the twin-screw structure, and install a feeder hopper on the top of first inner tube and second inner tube, make the bottom and first inner tube and the second inner tube of feeder hopper be linked together, can pour into the raw materials into to first inner tube and second inner tube inside through a feeder hopper, need not to set up two feeder hoppers, thereby reduce the quantity of the feeder hopper that the staff will look over, and then reduce staff's work load.

Description

Polypropylene insulation double-screw extruder unit for direct current cable

Technical Field

The utility model belongs to the technical field of the double screw extruder, concretely relates to be used for insulating double screw extruder group of polypropylene for direct current cable.

Background

The double-screw extruder is developed on the basis of a single-screw extruder, and has the characteristics of good feeding performance, good exhaust performance, good mixing and plasticizing performance, good extrusion stability and the like, so that the double-screw extruder is widely applied to the molding processing of extruded products at present.

The existing polypropylene insulating twin-screw extruder unit for the direct-current cable is mainly improved aiming at the aspects of extrusion efficiency and the like, for example, the twin-screw extruder unit provided by Chinese patent CN211591251U has the advantage of extrusion efficiency, but two groups of screw rods of the twin-screw extruder unit are independent, so that two feeding pipes are required to feed the interior of the twin-screw extruder unit, in order to facilitate the addition of raw materials to the two feeding pipes, a worker is required to observe the interior condition of the two feeding pipes simultaneously, the workload of the worker is increased, the cooling structure in the existing twin-screw extruder unit adopts a cooling agent to cool the twin-screw extruder unit, and then the cooling liquid needs to be replaced regularly, and is positioned in the twin-screw extruder unit, so that the twin-screw extruder unit needs to be disassembled when the cooling liquid is replaced every time, and the operation is complicated, therefore, the polypropylene twin-screw insulating extruder unit for the direct-current cable is provided, to address this situation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be used for insulating twin-screw extruder group of polypropylene for direct current cable, possess the work load that reduces the staff and be convenient for carry out refrigerated advantage to it to prior art existence.

In order to achieve the above object, the utility model provides a following technical scheme: a polypropylene insulation double-screw extruder unit for a direct current cable comprises a shell, wherein a connecting plate is installed on one side of the shell, a motor is installed on one side, away from the shell, of the connecting plate, a second screw rod is fixedly connected with a driving end of the motor, a main rotary disc is fixedly connected with one end, close to the motor, of the second screw rod, a belt is connected with the outer side of the main rotary disc, the main rotary disc is connected with a slave rotary disc through the belt, a first screw rod is fixedly installed on the inner wall of the slave rotary disc, a first inner cylinder and a second inner cylinder are installed inside the shell, opposite sides of the first inner cylinder and the second inner cylinder are communicated, installation frames are installed outside the first inner cylinder and the second inner cylinder, a partition plate is arranged inside the installation frames, a heating pipe is installed on one side, close to the connecting plate, of the partition plate is located inside the installation frames, and an installation plate is installed on one side, away from the connecting plate, one side that the connecting plate was kept away from to the shell is equipped with two and goes out the hopper, two go out the hopper and all pass the inside that the shell extended to the shell towards one side of connecting plate, two go out the hopper and be located the inside one end of shell and be connected with first inner tube and second inner tube respectively, the feeder hopper is installed on the top of shell and one side that is close to the connecting plate, the top casing that the shell was run through to the bottom of feeder hopper extends to inside first inner tube and the second inner tube.

Through above-mentioned technical scheme, establish to the state of being linked together between first inner tube and the second inner tube for the bottom of feeder hopper and the top intercommunication of first inner tube and second inner tube, thereby can drive the second screw rod through the motor to the inside raw materials that pours into of first inner tube and second inner tube into through a feeder hopper, the second screw rod drives main carousel and rotates, because the effect of belt, it is rotatory to make follow main carousel from the carousel, and then can extrude the inside raw materials of first inner tube and second inner tube.

Preferably, the top of shell is located the feeder hopper and keeps away from one side of connecting plate and installs the cooler bin, the both sides of cooler bin all are connected with the installation pipe, two the one end that the cooler bin was kept away from to the installation pipe all passes the shell and extends to inside the installing frame, two the one end that the installation pipe is located the installing frame inside all is located one side that the heating pipe was kept away from to the baffle, the top of cooler bin is equipped with annotates the liquid mouth.

Through above-mentioned technical scheme, the cooler bin can be to the inside coolant liquid that pours into of installing frame, can cool down the inside raw materials of first inner tube and second inner tube, annotates the liquid mouth through the cooler bin top and can add the coolant liquid, and then need not to dismantle the shell.

Preferably, one end of the first screw and one end of the second screw, which are far away from the motor, both penetrate through a shell on one side of the shell and respectively extend into the first inner cylinder and the second inner cylinder, the rod body of the first screw, which is located inside the first inner cylinder, is provided with the first spiral blade, and the rod body of the second screw, which is located inside the second inner cylinder, is provided with the second spiral blade.

Through above-mentioned technical scheme, first screw rod drives first spiral leaf rotatory, and the second screw rod drives the second spiral leaf rotatory to can extrude the raw materials of first inner tube and second inner tube inside through first spiral leaf and second spiral leaf.

Preferably, the top of shell is located and is equipped with the charge box between cooling tank and the feeder hopper, two connecting pipes of the bottom fixedly connected with of charge box, two electronic valve is all installed to the inside of connecting pipe, two the one end that the charge box was kept away from to the connecting pipe passes the inside that the shell extended to first inner tube and second inner tube respectively.

Through the technical scheme, the charge box can inject the charge inhibitor into the first inner cylinder and the second inner cylinder, so that the internal charge of the raw material is reduced.

Preferably, the fixed pipe is installed on the top of charge box, the mounting groove has been seted up to one side of charge box, the internally mounted of mounting groove has the switch, switch and two electronic valve electric connection.

Through above-mentioned technical scheme, the switch can be controlled the charge box, and when the extruder worked, can turn on the switch, pours into the electric charge into first inner tube and second inner tube inside into.

Preferably, the top end of the shell is located on one side, far away from the connecting plate, of the cooling box, and an exhaust pipe is installed on one side, far away from the connecting plate, of the cooling box, and one end, facing the shell, of the exhaust pipe penetrates through the top end shell of the shell and extends to the interiors of the first inner cylinder and the second inner cylinder.

Through the technical scheme, the exhaust pipe can exhaust the gas in the first inner cylinder and the second inner cylinder, and the gas in the first inner cylinder and the second inner cylinder is reduced.

Preferably, the bottom end of the shell is fixedly connected with two vertically arranged supporting columns, and each bottom end of each supporting column is fixedly connected with a base.

Through above-mentioned technical scheme, the support column can support the shell, and the base makes to support more firmly, improves stability.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the shell that sets up, feeder hopper and motor isotructure, reduce staff's work load, be equipped with first inner tube and second inner tube in the shell inside, and first inner tube is inside to be equipped with first screw rod, the inside second screw rod that is equipped with of second inner tube, thereby can realize the twin-screw structure, and install a feeder hopper on the top of first inner tube and second inner tube, make the bottom and first inner tube and the second inner tube of feeder hopper be linked together, can be through the inside injected raw materials of a feeder hopper to first inner tube and second inner tube, need not to set up two feeder hoppers, thereby reduce the quantity of feeder hopper that the staff will look over, and then reduce staff's work load.

2. Through the first inner tube that sets up, second inner tube and cooler bin isotructure, be convenient for cool off it, can be to the inside coolant liquid that pours into of installing frame into through the cooler bin to can cool down the first inner tube and the second inner tube surface of installing frame inside, and then can cool down keeping away from inside first inner tube and the second inner tube, after the coolant liquid exhausts, can pour into the coolant liquid into to the cooler bin inside from the notes liquid mouth on cooler bin top, and then need not to dismantle the shell.

Drawings

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

fig. 2 is a schematic structural view of the mounting frame of the present invention;

fig. 3 is a schematic structural view of a second helical blade of the present invention;

fig. 4 is a schematic structural view of the cooling box of the present invention.

In the figure: 1. a housing; 2. a feed hopper; 3. a connecting plate; 4. a motor; 5. a belt; 6. a main turntable; 7. a slave turntable; 8. a first screw; 9. a second screw; 10. a charge tank; 11. a cooling tank; 12. an exhaust pipe; 13. a discharge hopper; 14. a support pillar; 15. a base; 16. installing a frame; 17. heating a tube; 18. a connecting pipe; 19. installing a pipe; 20. a first inner cylinder; 21. a second inner barrel; 22. a first helical blade; 23. a second helical blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a polypropylene insulation double-screw extruder set for a direct current cable comprises a shell 1, a connecting plate 3 is installed on one side of the shell 1, a motor 4 is installed on one side of the connecting plate 3 far away from the shell 1, a second screw 9 is fixedly connected with a driving end of the motor 4, a main rotary disc 6 is fixedly connected with one end of the second screw 9 close to the motor 4, a belt 5 is connected with the outer side of the main rotary disc 6, the main rotary disc 6 is connected with a slave rotary disc 7 through the belt 5, a first screw 8 is fixedly installed on the inner wall of the slave rotary disc 7, a first inner cylinder 20 and a second inner cylinder 21 are installed inside the shell 1, opposite sides of the first inner cylinder 20 and the second inner cylinder 21 are communicated, an installation frame 16 is installed outside the first inner cylinder 20 and the second inner cylinder 21, a partition plate is arranged inside the installation frame 16, a heating pipe 17 is installed on one side, close to the partition plate, of the connection plate, of the installation frame 16 far away from the connecting plate 3, one side that connecting plate 3 was kept away from to shell 1 is equipped with two play hoppers 13, and two play hoppers 13 all pass the inside that shell 1 extended to shell 1 towards one side of connecting plate 3, and two play hoppers 13 are located the inside one end of shell 1 and are connected with first inner tube 20 and second inner tube 21 respectively, and feeder hopper 2 is installed on the top of shell 1 and the one side that is close to connecting plate 3, and the top casing that shell 1 was run through to the bottom of feeder hopper 2 extends to inside first inner tube 20 and the second inner tube 21.

In this embodiment, through establishing to be the state of being linked together between first inner tube 20 and the second inner tube 21 for the bottom of feeder hopper 2 communicates with the top of first inner tube 20 and second inner tube 21, thereby can inject the raw materials into first inner tube 20 and second inner tube 21 through a feeder hopper 2, drive second screw 9 through motor 4, second screw 9 drives main carousel 6 and rotates, because the effect of belt 5, make from carousel 7 follow main carousel 6 rotatory, and then can extrude the raw materials in first inner tube 20 and the second inner tube 21.

Specifically, the top of shell 1 is located feeder hopper 2 and keeps away from one side of connecting plate 3 and installs cooler bin 11, and the both sides of cooler bin 11 all are connected with installation pipe 19, and the one end that cooler bin 11 was kept away from to two installation pipes 19 all passes shell 1 and extends to inside the installing frame 16, and the one end that two installation pipes 19 are located installing frame 16 inside all is located one side that heating pipe 17 was kept away from to the baffle, and the top of cooler bin 11 is equipped with annotates the liquid mouth.

In this embodiment, the cooling box 11 can inject the cooling liquid into the mounting frame 16, so as to cool the raw materials in the first inner barrel 20 and the second inner barrel 21, and the liquid injection port at the top end of the cooling box 11 can add the cooling liquid, thereby eliminating the need to disassemble the housing 1.

Specifically, one ends of the first screw 8 and the second screw 9, which are far away from the motor 4, both penetrate through a shell on one side of the shell 1 and respectively extend into the first inner cylinder 20 and the second inner cylinder 21, the first screw blade 22 is installed on the rod body of the first screw 8, which is located inside the first inner cylinder 20, and the second screw blade 23 is installed on the rod body of the second screw 9, which is located inside the second inner cylinder 21.

In this embodiment, the first screw 8 rotates the first spiral blade 22, and the second screw 9 rotates the second spiral blade 23, so that the raw materials in the first inner cylinder 20 and the second inner cylinder 21 can be extruded by the first spiral blade 22 and the second spiral blade 23.

Specifically, the top of shell 1 is located and is equipped with charge box 10 between cooling box 11 and feeder hopper 2, and two connecting pipes 18 of the bottom fixedly connected with of charge box 10, and the electronic valve is all installed to the inside of two connecting pipes 18, and the one end that charge box 10 was kept away from to two connecting pipes 18 passes shell 1 respectively and extends to the inside of first inner tube 20 and second inner tube 21.

In this embodiment, the charge box 10 can inject the charge inhibitor into the first inner cylinder 20 and the second inner cylinder 21 to reduce the internal charge of the raw material.

Specifically, the fixed pipe is installed on the top of charge box 10, and the mounting groove has been seted up to one side of charge box 10, and the internally mounted of mounting groove has the switch, switch and two electronic valve electric connection.

In this embodiment, the charge tank 10 can be controlled by a switch, and when the extruder is operated, the switch can be turned on to inject charges into the first inner cylinder 20 and the second inner cylinder 21.

Specifically, the top end of the casing 1 is provided with an exhaust pipe 12 at a side of the cooling box 11 away from the connecting plate 3, and one end of the exhaust pipe 12 facing the casing 1 penetrates through the top end shell of the casing 1 and extends to the inside of the first inner cylinder 20 and the second inner cylinder 21.

In this embodiment, the exhaust pipe 12 can exhaust the gas inside the first inner cylinder 20 and the second inner cylinder 21, thereby reducing the gas inside the first inner cylinder 20 and the second inner cylinder 21.

Specifically, the bottom end of the housing 1 is fixedly connected with two vertically arranged supporting columns 14, and the bottom end of each supporting column 14 is fixedly connected with a base 15.

In this embodiment, can support shell 1 through support column 14, base 15 makes the support more firm, improves stability.

The utility model discloses a theory of operation and use flow: the motor 4 is started, the motor 4 drives the second screw rod 9 to rotate, the second screw rod 9 drives the main rotary table 6 to rotate, the auxiliary rotary table 7 rotates along with the main rotary table 6 under the action of the belt 5, the first screw rod 8 rotates along with the auxiliary rotary table 7, so that the first spiral blade 22 and the second spiral blade 23 are driven to rotate through the first screw rod 8 and the second screw rod 9, raw materials in the first inner cylinder 20 and the second inner cylinder 21 can be extruded out, the feed hopper 2 is arranged at the top ends of the first inner cylinder 20 and the second inner cylinder 21, the bottom end of the feed hopper 2 is communicated with the first inner cylinder 20 and the second inner cylinder 21, the raw materials can be injected into the first inner cylinder 20 and the second inner cylinder 21 through the feed hopper 2, two feed hoppers 2 do not need to be arranged, the number of the feed hoppers 2 required to be checked by a worker is reduced, and the workload of the worker is reduced, can be to the inside coolant liquid that pours into of installing frame 16 through cooler bin 11 to can cool down the first inner tube 20 and the second inner tube 21 surface inside the installing frame 16, and then can cool down keeping away from inside first inner tube 20 and the second inner tube 21, after the coolant liquid exhausts, can pour into the coolant liquid into the inside of cooler bin 11 from the notes liquid mouth on cooler bin 11 top, and then need not to dismantle shell 1.

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

Claims (7)

1. A polypropylene insulation twin-screw extruder group for direct current cable, includes shell (1), its characterized in that: the improved structure of the motor-driven rotary table is characterized in that a connecting plate (3) is installed on one side of the shell (1), a motor (4) is installed on one side of the connecting plate (3) away from the shell (1), a second screw rod (9) is fixedly connected to a driving end of the motor (4), a main rotary table (6) is fixedly connected to one end, close to the motor (4), of the second screw rod (9), a belt (5) is connected to the outer side of the main rotary table (6), a slave rotary table (7) is connected to the main rotary table (6) through the belt (5), a first screw rod (8) is fixedly installed on the inner wall of the slave rotary table (7), a first inner cylinder (20) and a second inner cylinder (21) are installed inside the shell (1), the first inner cylinder (20) and the second inner cylinder (21) are communicated with each other side, an installation frame (16) is installed outside the first inner cylinder (20) and the second inner cylinder (21), and a partition plate is arranged inside the installation frame (16), the inside of installing frame (16) is located one side that the baffle is close to connecting plate (3) and installs heating pipe (17), the installing frame (16) is kept away from one side of connecting plate (3) and is installed the mounting panel, one side that connecting plate (3) were kept away from in shell (1) is equipped with two play hopper (13), two go out hopper (13) and all pass the inside that shell (1) extended to shell (1) towards one side of connecting plate (3), two go out hopper (13) and be located the inside one end of shell (1) and be connected with first inner tube (20) and second inner tube (21) respectively, feeder hopper (2) are installed on the top of shell (1) and one side that is close to connecting plate (3), the top casing that shell (1) was run through in the bottom of feeder hopper (2) extends to inside first inner tube (20) and second inner tube (21).

2. The polypropylene insulated twin-screw extruder set for direct current cables according to claim 1, characterized in that: the top of shell (1) is located feeder hopper (2) and keeps away from one side of connecting plate (3) and installs cooler bin (11), the both sides of cooler bin (11) all are connected with installation pipe (19), two the one end that cooler bin (11) were kept away from in installation pipe (19) all passes shell (1) and extends to inside installing frame (16), two the one end that installation pipe (19) are located installing frame (16) inside all is located the one side that heating pipe (17) were kept away from to the baffle, the top of cooler bin (11) is equipped with annotates the liquid mouth.

3. The polypropylene insulated twin-screw extruder set for direct current cables according to claim 1, characterized in that: one end of the first screw rod (8) and the second screw rod (9) far away from the motor (4) penetrates through a shell on one side of the shell (1) and extends into the first inner cylinder (20) and the second inner cylinder (21) respectively, the first screw rod (8) is located on the rod body inside the first inner cylinder (20) and is provided with a first spiral blade (22), and the second screw rod (9) is located on the rod body inside the second inner cylinder (21) and is provided with a second spiral blade (23).

4. The polypropylene insulated twin-screw extruder set for direct current cables according to claim 2, characterized in that: the top of shell (1) is located and is equipped with charge box (10) between cooling tank (11) and feeder hopper (2), two connecting pipes (18), two of the bottom fixedly connected with of charge box (10) the electronic valve is all installed to the inside of connecting pipe (18), two the one end that charge box (10) were kept away from in connecting pipe (18) passes shell (1) respectively and extends to the inside of first inner tube (20) and second inner tube (21).

5. The polypropylene insulated twin-screw extruder set for direct current cables according to claim 4, characterized in that: the fixed pipe is installed on the top of charge box (10), the mounting groove has been seted up to one side of charge box (10), the internally mounted of mounting groove has the switch, switch and two electronic valve electric connection.

6. The polypropylene insulated twin-screw extruder set for direct current cables according to claim 2, characterized in that: the top of shell (1) is located one side that connecting plate (3) were kept away from in cooler bin (11) and installs blast pipe (12), blast pipe (12) pass the top casing of shell (1) towards the one end of shell (1) and extend to the inside of first inner tube (20) and second inner tube (21).

7. The polypropylene insulated twin-screw extruder set for direct current cables according to claim 1, characterized in that: the bottom fixedly connected with of shell (1) support column (14) of two vertical settings, every the equal fixedly connected with base (15) in bottom of support column (14).

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