CN210132749U

CN210132749U - Cooling device for plastic extruder

Info

Publication number: CN210132749U
Application number: CN201920869877.2U
Authority: CN
Inventors: 于成彬
Original assignee: WEIHAI WEIYING PLASTIC CO Ltd
Current assignee: WEIHAI WEIYING PLASTIC CO Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-03-10
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a cooling device for plastic extruder, including an extrusion molding section of thick bamboo and feeder hopper, the bottom of feeder hopper and the top intercommunication of an extrusion molding section of thick bamboo, the left side intercommunication of extrusion molding bobbin base portion has the extrusion pipe, the extrusion molding section of thick bamboo includes inner tube and urceolus, fixedly connected with supporting shoe between the surface of inner tube and the internal surface of urceolus, and the inside of inner tube is rotated and is connected with hollow auger, the utility model relates to a plastic extruder technical field. This cooling device for plastic extruder, through setting up the extrusion molding section of thick bamboo into inner tube and urceolus, leave the space in the middle of, utilize air exhauster can extract the air between inner tube and the urceolus and the air in the hollow auger, can absorb the unnecessary heat that the friction produced between hollow auger and the inner tube, inside and outside absorbs simultaneously, endothermic efficiency is higher, and through blast pipe and preheat the cover cooperation, can arrange unnecessary heat in the feeder hopper, preheat for plastics wherein, the surplus heat of recycle, comparatively energy-concerving and environment-protective.

Description

Cooling device for plastic extruder

Technical Field

The utility model relates to a plastics extruder technical field specifically is a cooling device for plastics extruder.

Background

In the plastic extrusion molding equipment, the plastic extruder is generally called a main machine, and the subsequent equipment matched with the plastic extruder is called an auxiliary machine. After the development of the plastic extruder for more than 100 years, multiple types of double screws, multiple screws and even no screws and the like are derived from the original single screw. The plastic extruder (main machine) can be matched with various plastic forming auxiliary machines for pipe material, film, bar material, monofilament, flat filament, packing belt, extruding net, plate (sheet) material, profiled bar, granulating and cable covering, etc. to form various plastic extrusion forming production lines to produce various plastic products. Therefore, the plastic extrusion molding machine is one of the machines widely used in the plastic processing industry at present or in the future.

In the prior art, for example, a cooling device of a plastic extruder disclosed in CN 205219702U is provided with a middle through pipe and an outer pipe, and a liquid medium is arranged in the middle through pipe to absorb excess heat generated by friction between a screw and the middle through pipe, but the absorption of heat from the outside is not complete enough, the efficiency is not high, and the excess heat is directly dissipated into the air after being discharged, so that the excess heat is not reasonably utilized, and the waste of heat is caused.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a cooling device for plastic extruder has solved prior art and has disclosed like CN 205219702U's plastic extruder cooling device, through setting up middle direct pipe and outer tube to wherein set up liquid medium and be used for absorbing the unnecessary heat that screw rod and middle direct pipe friction produced, efficiency is not high, and in the unnecessary heat was directly lost and disappears to the air after being discharged, has caused the problem of heat waste.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a cooling device for a plastic extruder comprises an extrusion molding barrel and a feed hopper, wherein the bottom of the feed hopper is communicated with the top of the extrusion molding barrel, the left side of the bottom of the extrusion molding barrel is communicated with an extrusion pipe, the extrusion molding barrel comprises an inner barrel and an outer barrel, a supporting block is fixedly connected between the outer surface of the inner barrel and the inner surface of the outer barrel, a hollow auger is rotatably connected inside the inner barrel, the left end of the outer barrel is fixedly connected with an air suction cover through a bolt, the left side of the air suction cover is communicated with a first air exhaust pipe, the left end of the hollow auger penetrates through the left side of the inner barrel and extends into the air suction cover, a preheating cover is fixedly connected with the outer surface of the feed hopper, meshes are formed in the surface of the feed hopper and positioned inside the preheating cover, a box and an exhaust fan are fixedly connected with the middle of, the right-hand member of first exhaust column and the left side intercommunication that collects the box, the air outlet intercommunication of air exhauster has the blast pipe, and the right-hand member of blast pipe and the left side intercommunication of preheating the cover.

Preferably, the bottom fixedly connected with base of an extrusion molding section of thick bamboo, the right side fixedly connected with machine case at base top, and the inside fixedly connected with motor of machine case.

Preferably, the left side of the case is communicated with a second exhaust pipe, and the top end of the second exhaust pipe is communicated with the front face of the collection box.

Preferably, a transmission case is fixedly connected between the case and the right side of the extrusion molding cylinder through bolts, and the right end of the output shaft of the motor penetrates through the right wall of the case and extends into the transmission case.

Preferably, the surface of motor output shaft just is located the inside fixedly connected with drive pulley of transmission case, the surface of hollow auger just is located the inside fixedly connected with driven pulley of transmission case, and is connected through belt transmission between drive pulley and the driven pulley.

Preferably, the surfaces of the first exhaust pipe and the second exhaust pipe are fixedly connected with the outer surface of the extrusion molding cylinder through fixing rings, and rifling lines are arranged on the outer surface of the inner cylinder and the inner surface of the outer cylinder.

Advantageous effects

The utility model provides a cooling device for plastic extruder. Compared with the prior art, the method has the following beneficial effects:

(1) the cooling device for the plastic extruder comprises an extrusion molding barrel, wherein a supporting block is fixedly connected between the outer surface of the inner barrel and the inner surface of the outer barrel, a hollow auger is rotatably connected inside the inner barrel, the left end of the outer barrel is fixedly connected with an air suction cover through a bolt, the left side of the air suction cover is communicated with a first air exhaust pipe, the left end of the hollow auger penetrates through the left side of the inner barrel and extends into the air suction cover, a preheating cover is fixedly connected to the outer surface of a feeding hopper, meshes are formed in the surface of the feeding hopper and positioned inside the preheating cover, a collecting box and an air exhaust fan are fixedly connected to the middle of the top of the extrusion molding barrel from left to right in sequence, the right side of the collecting box is communicated with an air inlet of the air exhaust fan, the right end of the first air exhaust pipe is communicated with the left, through setting up the extrusion molding section of thick bamboo into inner tube and urceolus, leave the space in the centre, utilize air exhauster telescopic air between inner tube and the urceolus and the air in the hollow auger, can absorb the unnecessary heat that the friction produced between hollow auger and the inner tube, inside and outside absorbs simultaneously, and endothermic efficiency is higher, and through blast pipe and preheat the cover cooperation, can arrange unnecessary heat in the feeder hopper, preheat for plastics wherein, the surplus heat of recycle, comparatively energy-concerving and environment-protective.

(2) This cooling device for plastic extruder, through the bottom fixedly connected with base at an extrusion molding section of thick bamboo, the right side fixedly connected with quick-witted case at base top, and the inside fixedly connected with motor of quick-witted case, the left side intercommunication of machine case has the second exhaust column, and the top of second exhaust column and the front intercommunication that collects the box, through setting up second exhaust column and quick-witted case cooperation, can also extract recycle together with the heat that the motor produced, not only energy-concerving and environment-protective, and can cool down for the motor, its life has been prolonged.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

fig. 3 is a front view of the inner tube of the present invention.

In the figure: 1-extrusion cylinder, 2-feeding hopper, 3-extrusion pipe, 4-inner cylinder, 5-outer cylinder, 6-supporting block, 7-hollow auger, 8-air suction hood, 9-first air extraction pipe, 10-preheating hood, 11-collection box, 12-exhaust fan, 13-exhaust pipe, 14-base, 15-machine box, 16-motor, 17-second air extraction pipe, 18-transmission box, 19-driving belt pulley, 20-driven belt pulley and 21-belt.

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. 1-3, the present invention provides a technical solution: a cooling device for a plastic extruder comprises an extrusion molding cylinder 1 and a feed hopper 2, wherein the bottom of the extrusion molding cylinder 1 is fixedly connected with a base 14, the right side of the top of the base 14 is fixedly connected with a case 15, the inside of the case 15 is fixedly connected with a motor 16, the left side of the case 15 is communicated with a second exhaust pipe 17, the top end of the second exhaust pipe 17 is communicated with the front side of a collecting box 11, the second exhaust pipe 17 is matched with the case 15, heat generated by the motor 16 can be extracted and recycled together, energy is saved, environment is protected, the motor 16 can be cooled, the service life of the motor is prolonged, a transmission case 18 is fixedly connected between the case 15 and the right side of the extrusion molding cylinder 1 through bolts, the output shaft of the motor 16 penetrates through the right wall of the case 15 and extends into the transmission case 18, the surface of the output shaft of the motor 16 is fixedly connected with a driving belt pulley 19 positioned in, the surface of the hollow auger 7 and the inside of the transmission case 18 are fixedly connected with a driven belt pulley 20, a driving belt pulley 19 is in transmission connection with the driven belt pulley 20 through a belt 21, the bottom of the feed hopper 2 is communicated with the top of the extrusion molding cylinder 1, the left side of the bottom of the extrusion molding cylinder 1 is communicated with an extrusion pipe 3, the extrusion molding cylinder 1 comprises an inner cylinder 4 and an outer cylinder 5, a supporting block 6 is fixedly connected between the outer surface of the inner cylinder 4 and the inner surface of the outer cylinder 5, the hollow auger 7 is rotatably connected inside the inner cylinder 4, the left end of the outer cylinder 5 is fixedly connected with an air suction hood 8 through a bolt, the left side of the air suction hood 8 is communicated with a first exhaust pipe 9, the surfaces of the first exhaust pipe 9 and a second exhaust pipe 17 are fixedly connected with the outer surface of the extrusion molding cylinder 1 through a fixing ring, rifling lines 22 are respectively arranged on the outer surface of the inner cylinder 4 and the inner, the heat absorption speed is improved, the heat absorption is uniform, the left end of the hollow auger 7 penetrates through the left side of the inner cylinder 4 and extends into the air suction hood 8, the preheating hood 10 is fixedly connected to the outer surface of the feeding hopper 2, meshes are formed in the surface of the feeding hopper 2 and located inside the preheating hood 10, the collecting box 11 and the exhaust fan 12 are sequentially and fixedly connected to the middle of the top of the extrusion molding cylinder 1 from left to right, the right side of the collecting box 11 is communicated with an air inlet of the exhaust fan 12, the right end of the first exhaust pipe 9 is communicated with the left side of the collecting box 11, an air outlet of the exhaust fan 12 is communicated with an exhaust pipe 13, the right end of the exhaust pipe 13 is communicated with the left side of the preheating hood 10, the extrusion molding cylinder 1 is provided with the inner cylinder 4 and the outer cylinder 5, a gap is reserved in the middle, air between the inner cylinder 4 and the outer cylinder 5, the inside and outside is absorbed simultaneously, and the heat absorption efficiency is higher, and through blast pipe 13 and preheating cover 10 cooperation, can discharge unnecessary heat in feeder hopper 2, preheats for plastics wherein, and the recovery has utilized unnecessary heat, and is comparatively energy-concerving and environment-protective.

When in work, the motor 16 and the exhaust fan 12 are electrified and started, the motor 16 drives the driving belt pulley 19 to rotate, the belt 21 drives the driven belt pulley 20 to rotate, the hollow auger 7 rotates, plastic particles are poured into the feed hopper 2 and slowly fall into the inner cylinder 4, the hollow auger 7 extrudes and pushes the plastic particles leftwards, so that the plastic is plasticized and finally extruded from the extrusion pipe 3, meanwhile, the exhaust fan 12 extracts the air in the collection box 11 to generate negative pressure, the first exhaust pipe 9 is used for extracting the air in the preheating cover 10 to ensure that the air between the inner cylinder 4 and the outer cylinder 5 flows leftwards, and then drawn into the collection box 11, while the second exhaust duct 17 extracts the hot air in the cabinet 15, discharges it into the collection box 11, then together through the exhaust pipe 13 into the preheating hood 10, and through the air holes on the surface of the feeding hopper 2, the plastic is preheated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 cooling device for plastic extruder, includes an extrusion molding section of thick bamboo (1) and feeder hopper (2), the bottom of feeder hopper (2) and the top intercommunication of an extrusion molding section of thick bamboo (1), the left side intercommunication of an extrusion molding section of thick bamboo (1) bottom has extrusion pipe (3), its characterized in that: the extrusion molding barrel (1) comprises an inner barrel (4) and an outer barrel (5), a supporting block (6) is fixedly connected between the outer surface of the inner barrel (4) and the inner surface of the outer barrel (5), a hollow auger (7) is connected to the inner rotation of the inner barrel (4), an air suction cover (8) is fixedly connected to the left end of the outer barrel (5) through bolts, a first air suction pipe (9) is communicated with the left side of the air suction cover (8), the left end of the hollow auger (7) penetrates through the left side of the inner barrel (4) and extends to the inside of the air suction cover (8), a preheating cover (10) is fixedly connected to the outer surface of the feeding hopper (2), meshes are formed in the surface of the feeding hopper (2) and the inside of the preheating cover (10), a collecting box (11) and an exhaust fan (12) are fixedly connected to the middle of the, and the right side of the collection box (11) is communicated with the air inlet of the exhaust fan (12), the right end of the first exhaust pipe (9) is communicated with the left side of the collection box (11), the air outlet of the exhaust fan (12) is communicated with an exhaust pipe (13), and the right end of the exhaust pipe (13) is communicated with the left side of the preheating cover (10).

2. The cooling device for plastic extruders as set forth in claim 1, wherein: the bottom fixedly connected with base (14) of an extrusion molding cylinder (1), the right side fixedly connected with machine case (15) at base (14) top, and the inside fixedly connected with motor (16) of machine case (15).

3. The cooling device for plastic extruders as set forth in claim 2, wherein: and the left side of the case (15) is communicated with a second exhaust pipe (17), and the top end of the second exhaust pipe (17) is communicated with the front surface of the collection box (11).

4. The cooling device for plastic extruders as set forth in claim 2, wherein: the right-hand member of motor (16) output shaft runs through the right wall of quick-witted case (15) and extends to the inside of transmission case (18) through bolt fixedly connected with transmission case (18) between the right side of machine case (15) and plastic extruding cylinder (1).

5. The cooling device for plastic extruders as set forth in claim 4, wherein: the surface of motor (16) output shaft just is located inside fixedly connected with drive pulley (19) of transmission case (18), the surface of hollow auger (7) just is located inside fixedly connected with driven pulley (20) of transmission case (18), and is connected through belt (21) transmission between drive pulley (19) and driven pulley (20).

6. The cooling device for plastic extruders as set forth in claim 1, wherein: the surface of first exhaust column (9) and second exhaust column (17) all is connected through the surface fixed of solid fixed ring with extrusion molding section of thick bamboo (1), rifling (22) have all been seted up with the internal surface of urceolus (5) to the surface of inner tube (4).