CN212097471U

CN212097471U - Double-screw extruder with cooling effect

Info

Publication number: CN212097471U
Application number: CN201922072759.1U
Authority: CN
Inventors: 吕春山
Original assignee: Yangzhou Xuntong Plastic Industry Co ltd
Current assignee: Yangzhou Xuntong Plastic Industry Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-12-08
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a double screw extruder with cooling effect in the technical field of double screw extruder, the discharge port of the double screw extruder body is provided with two groups of guide rollers side by side, the guide rollers are fixed on the side wall of the cooling chamber through a bracket, the side wall of the cooling chamber is provided with a feed inlet corresponding to the guide rollers, the outer side wall of the feed inlet is tightly attached with a material cutting knife, two groups of installation blocks are rotatably inserted with a transmission shaft, the transmission shaft is sleeved with a transmission aluminum belt at equal intervals, one end of the transmission shaft is fixedly connected with a motor fixedly arranged at the top of the support frame, one end of the support frame is fixedly connected with the end part of a cylinder rod of a driving cylinder arranged in the inner cavity of the cooling chamber, the inner wall of the cooling chamber is provided with a cooling device, and the outer wall of the cooling chamber is provided with a controller, the utility model can rapidly cool, the use effect is good.

Description

Double-screw extruder with cooling effect

Technical Field

The utility model relates to a double screw extruder technical field specifically is a double screw extruder with cooling effect.

Background

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

The cylindrical strand just extruded is softer and the temperature is higher, and is easy to deform, so must cool the hardening before cutting grain, and the method of cooling is mostly the strand and carries out water-cooling through rectangular basin, but the water-cooling mode exists when the strand passes through the basin for a long time, rivers probably dip in the strand a little to influence the quality of strand, for this reason, we propose a twin-screw extruder with cooling effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double screw extruder with cooling effect to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a double-screw extruder with a cooling effect comprises a double-screw extruder body, wherein two groups of guide rollers are arranged at a discharge port of the double-screw extruder body side by side, the guide rollers are fixed on the side wall of a cooling chamber through a support, a feed inlet corresponding to the guide rollers is arranged on the side wall of the cooling chamber, a material cutting knife is tightly attached to the outer side wall of the feed inlet and is connected with an output end of a cylinder arranged at the top of the cooling chamber, a support frame is arranged in the inner cavity of the cooling chamber, two ends of the support frame are fixedly connected with a sliding block which is slidably embedded in the inner wall of the cooling chamber, mounting blocks are symmetrically and fixedly arranged at the top of the support frame, a transmission shaft is rotatably inserted between the two groups of mounting blocks, a conveying aluminum belt is sleeved on the transmission shaft at equal intervals, one end of the transmission shaft is fixedly connected with a motor fixedly arranged at the top of, the cooling chamber inner wall is equipped with the heat sink, just the cooling chamber outer wall is equipped with the controller.

Further, the heat sink is including the liquid nitrogen bottle that is fixed in cooling chamber lateral wall, the exit linkage of liquid nitrogen bottle has the nozzle, be provided with solenoid valve on the nozzle, liquid nitrogen bottle lateral wall is provided with liquid nitrogen pipe and vacuum tube respectively, all be equipped with the valve on liquid nitrogen pipe and the vacuum tube.

Furthermore, the outlet of the nozzle is opposite to the end part of the conveying aluminum strip, the input end of the electromagnetic valve is electrically connected with the controller, and the working time interval of the nozzle is the time when the adjacent conveying aluminum strips move through the nozzle.

Furthermore, two ends of the conveying aluminum strip are sleeved on the transmission gear, the transmission gear is fixedly sleeved on the transmission shaft, and the surface of the conveying aluminum strip is uniformly provided with ventilation holes.

Further, the slider is less than the position of heat sink in the mounted position of cooling room inner wall, conveying aluminium strip and feed inlet height parallel and level.

Further, cooling fan is provided with to cooling chamber inner chamber bottom, just the discharge gate has been seted up to the cooling chamber lateral wall, the length of discharge gate equals to be located the interval between the both ends conveying aluminium strip.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of simple structure, and reasonable design, the line material that will follow the extruder extrusion passes through the transfer roller and conveys to the conveying aluminum strip, and cut off the line material through the blank sword, continuous work makes all put the line material on a plurality of conveying aluminum strips, the support frame passes through the cylinder and removes, it removes to drive conveying aluminum strip in step, make conveying aluminum strip pass through heat sink in proper order, spout liquid nitrogen on the aluminum strip surface, the temperature of conveying aluminum strip has been reduced rapidly, thereby make the line material of putting on conveying aluminum strip pass through the heat exchange and reduce the temperature, and cooperate the cooling fan, cool down the line material fast, and can not cause the influence to the quality of line material, excellent in use effect.

Drawings

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

fig. 2 is the schematic view of the structure of the cooling device of the present invention.

In the figure: 1. a twin screw extruder body; 2. a guide roller; 3. a cooling chamber; 4. a feed inlet; 5. a material cutting knife; 6. a cylinder; 7. a support frame; 8. a slider; 9. mounting blocks; 10. a drive shaft; 11. conveying an aluminum strip; 12. a motor; 13. a driving cylinder; 14. a cooling device; 141. a liquid nitrogen bottle; 142. a nozzle; 143. an electromagnetic valve; 144. a liquid nitrogen pipe; 145. vacuumizing a tube; 15. a controller; 16. a cooling fan.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

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.

The utility model provides a double-screw extruder with cooling effect, which can rapidly cool the strand through heat exchange, and can not affect the quality of the strand, and has good use effect;

referring to fig. 1, two groups of guide rollers 2 are arranged side by side at a discharge port of a double-screw extruder body 1, so that extruded strands can be conveniently conveyed and guided into a cooling chamber 3, the guide rollers 2 are fixed on the side wall of the cooling chamber 3 through supports, a feed port 4 corresponding to the guide rollers 2 is arranged on the side wall of the cooling chamber 3, a cutting knife 5 is closely arranged on the outer side wall of the feed port 4, the cutting knife 5 is connected with an output end of a cylinder 6 arranged at the top of the cooling chamber 3, and the cutting knife 5 is driven by the cylinder 6 to cut the strands so that the strands are placed on a plurality of conveying aluminum belts 11 in a segmented manner;

referring to fig. 1, a support frame 7 is arranged in an inner cavity of the cooling chamber 3, the support frame 7 is used for driving an aluminum belt 11 to sequentially pass through a cooling device 14 and a feeding port 4, two ends of the support frame 7 are fixedly connected with a slide block 8 which is embedded in the inner wall of the cooling chamber 3 in a sliding manner, a sliding groove is formed in the inner wall of the cooling chamber 3, and mounting blocks 9 are symmetrically and fixedly arranged at the top of the support frame 7;

referring to fig. 1, a transmission shaft 10 is rotatably inserted between two sets of mounting blocks 9, an aluminum belt conveyor 11 is sleeved on the transmission shaft 10 at equal intervals, one end of the transmission shaft 10 is fixedly connected with a motor 12 fixedly arranged at the top of a support frame 7, the motor 12 is used for driving the aluminum belt conveyor 11 to rotate, one end of the support frame 7 is fixedly connected with the end of a cylinder rod of a driving cylinder 13 arranged in an inner cavity of a cooling chamber 3, the aluminum belt conveyor 11 is controlled by a controller 15 to stay when moving to a cooling device 14 until the surface of the aluminum belt conveyor 11 is sprayed with liquid nitrogen, and then the aluminum belt conveyor 11 is moved to a feed inlet 4, and as the cooling time and the material receiving time of the aluminum belt conveyor 11 are not changed, the controller 15 is only required to periodically work electronic devices;

referring to fig. 1, a temperature reducing device 14 is disposed on the inner wall of the temperature reducing chamber 3, and a controller 15 is disposed on the outer wall of the temperature reducing chamber 3.

Referring to fig. 2, the cooling device 14 includes a liquid nitrogen bottle 141 fixed on the side wall of the cooling chamber 3, an outlet of the liquid nitrogen bottle 141 is connected to a nozzle 142, the nozzle 142 is provided with an electromagnetic valve 143, the electromagnetic valve 143 is controlled to be opened at intervals by the controller 15, so that the remaining aluminum belt 11 is sprayed with liquid nitrogen, the side wall of the liquid nitrogen bottle 141 is respectively provided with a liquid nitrogen pipe 144 and a vacuum tube 145 for supplementing liquid nitrogen and maintaining the liquid nitrogen bottle 141 at a negative pressure state all the time, and the liquid nitrogen pipe 144 and the vacuum tube 145 are provided with valves.

The outlet of the nozzle 142 is opposite to the end of the aluminum conveying belt 11, the input end of the electromagnetic valve 143 is electrically connected with the controller 15, the working time interval of the nozzle 142 is the time when the adjacent aluminum conveying belt 11 moves through the nozzle 142, and when each group of aluminum conveying belts 11 passes through the nozzle 142, the aluminum conveying belts 11 stay for one circle of rotation, and liquid nitrogen is uniformly sprayed on the surfaces of the aluminum conveying belts 11.

Two ends of the conveying aluminum belt 11 are sleeved on the transmission gear, the transmission gear is fixedly sleeved on the transmission shaft 10, and ventilation holes are uniformly formed in the surface of the conveying aluminum belt 11, so that the conveying aluminum belt is convenient to match with the cooling fan 16, and the cooling efficiency is improved.

The slide block 8 is arranged at the position, lower than the temperature reduction device 14, of the inner wall of the temperature reduction chamber 3, so that the conveying aluminum strip 11 can receive the sprayed liquid nitrogen, and the conveying aluminum strip 11 is flush with the feeding hole 4 in height.

The cooling fan 16 is arranged at the bottom of the inner cavity of the cooling chamber 3, so that the cooling efficiency is improved conveniently, the side wall of the cooling chamber 3 is provided with a discharge port, and the length of the discharge port is equal to the distance between the two end conveying aluminum strips 11.

Example (b): the double-screw extruder body 1 is used for producing extruded strands, the strands enter an inner cavity of a cooling chamber 3 from a feeding hole 4 through a guide roller 2, a driving cylinder 13 drives a supporting frame 7 to move in the inner cavity of the cooling chamber 3 through a sliding block 8, so that a conveying aluminum strip 11 is flush with the feeding hole 4, a motor 12 drives the conveying aluminum strip 11 to rotate through a transmission shaft 10, the strands are conveyed onto the conveying aluminum strip 11 and driven to cut off the strands through a cutting knife 5 through a cylinder 6, so that the strands are sequentially placed on a plurality of conveying aluminum strips 11, when the conveying aluminum strips 11 pass through a cooling device 14, an electromagnetic valve 143 is opened, as the inner cavity of a liquid nitrogen bottle 141 is always in a negative pressure state through a vacuum tube 145, when the electromagnetic valve 143 is opened, liquid nitrogen in the liquid nitrogen bottle 141 is sprayed to the surface of the conveying aluminum strip 11 from a nozzle 142, so that when the strands are placed on the conveying aluminum strips 11, heat of the strands is rapidly taken away through, the effect of cooling is reached, and the cooperation cooling fan 16 has improved cooling efficiency, excellent in use effect.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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

1. The utility model provides a twin-screw extruder with cooling effect, includes twin-screw extruder body (1), its characterized in that: the double-screw extruder is characterized in that two groups of guide rollers (2) are arranged side by side at a discharge port of a double-screw extruder body (1), the guide rollers (2) are fixed on the side wall of a cooling chamber (3) through a support, a feed port (4) corresponding to the guide rollers (2) is arranged on the side wall of the cooling chamber (3), a material cutting knife (5) is tightly attached to the outer side wall of the feed port (4), the material cutting knife (5) is connected with an output end of a cylinder (6) arranged at the top of the cooling chamber (3), a support frame (7) is arranged in an inner cavity of the cooling chamber (3), two ends of the support frame (7) are fixedly connected with a sliding block (8) which is embedded in the inner wall of the cooling chamber (3) in a sliding manner, mounting blocks (9) are symmetrically and fixedly arranged at the top of the support frame (7), two groups of mounting blocks (9, and one end of the transmission shaft (10) is fixedly connected with a motor (12) fixedly arranged at the top of the support frame (7), one end of the support frame (7) is fixedly connected with the end part of a cylinder rod of a driving cylinder (13) arranged in the inner cavity of the cooling chamber (3), the inner wall of the cooling chamber (3) is provided with a cooling device (14), and the outer wall of the cooling chamber (3) is provided with a controller (15).

2. The twin-screw extruder with cooling effect of claim 1, characterized in that: the cooling device (14) comprises a liquid nitrogen bottle (141) fixed on the side wall of the cooling chamber (3), an outlet of the liquid nitrogen bottle (141) is connected with a nozzle (142), an electromagnetic valve (143) is arranged on the nozzle (142), the side wall of the liquid nitrogen bottle (141) is respectively provided with a liquid nitrogen pipe (144) and a vacuumizing pipe (145), and valves are arranged on the liquid nitrogen pipe (144) and the vacuumizing pipe (145).

3. The twin-screw extruder with cooling effect of claim 2, characterized in that: the outlet of the nozzle (142) is opposite to the end part of the conveying aluminum strip (11), the input end of the electromagnetic valve (143) is electrically connected with the controller (15), and the working time interval of the nozzle (142) is the time when the adjacent conveying aluminum strip (11) moves through the nozzle (142).

4. The twin-screw extruder with cooling effect of claim 1, characterized in that: two ends of the conveying aluminum strip (11) are sleeved on the transmission gear, the transmission gear is fixedly sleeved on the transmission shaft (10), and ventilation holes are uniformly formed in the surface of the conveying aluminum strip (11).

5. The twin-screw extruder with cooling effect of claim 1, characterized in that: slider (8) are less than the position of heat sink (14) in the mounted position of cooling room (3) inner wall, conveying aluminium strip (11) and feed inlet (4) height parallel and level.

6. The twin-screw extruder with cooling effect of claim 1, characterized in that: cooling fan (16) are provided with to cooling chamber (3) inner chamber bottom, just the discharge gate has been seted up to cooling chamber (3) lateral wall, the length of discharge gate equals to be located the interval between both ends conveying aluminium strip (11).