CN216832109U - Side evacuating device - Google Patents
Side evacuating device Download PDFInfo
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- CN216832109U CN216832109U CN202220216850.5U CN202220216850U CN216832109U CN 216832109 U CN216832109 U CN 216832109U CN 202220216850 U CN202220216850 U CN 202220216850U CN 216832109 U CN216832109 U CN 216832109U
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Abstract
The utility model discloses a side evacuating device, include: the opening is arranged on the side surface of a material pipe of the extruder, and molten materials are arranged in the material pipe; the double-screw side feeding mechanism is arranged at the opening and comprises a box body, a driving unit and two screws, the two screws are arranged in the box body in parallel, the driving unit is used for driving the two screws to rotate and mesh in the same direction, and the molten material with an outflow tendency is fed back into the material pipe; and the vacuum generating mechanism is arranged below the box body and can generate negative pressure, so that the gas in the material pipe is pumped out to the outside through the screw groove of the screw rod. The utility model discloses improved the ventilative open-ended blocking phenomenon in vacuum, avoided the production of defective products, promoted the production yield, simultaneously, the utility model discloses still have the cleaning time that reduces the production of stopping unusually, reduce production workman's intensity of labour, low in production cost's advantage.
Description
Technical Field
The utility model relates to a plastics extruder technical field especially relates to a side evacuating device.
Background
When the double screw extruder blends modified plastics, when the plastics melts in the extruder charge pipe, there is volatile gaseous production, and this gas contains steam, low molecular substance and impurity usually, if this gas remains in plastics, the output particle has the outward appearance bad, and material strength descends, so can be provided with natural bleeder vent at the extruder front end when extruding the granulation, and the back end can set up evacuating device, and this evacuating device comprises last bleeder vent, vacuum seat, vacuum tube, vacuum meter, vacuum bucket and vacuum pump. In the actual production process, the rear-section air holes are often separated out by volatile crystals in the plastic and materials with poor compatibility with the plastic, and the molten plastic is blocked by material overflow, so that the air cannot inform the air holes to be pumped away, and the residual products are poor. Because the vacuum meter is connected on the vacuum tube, when the venthole is blocked, the vacuum meter still has normal reading to show that the vacuum is normal, but the gas is not taken away, and the processing procedure is unusual and can not be found in time, leads to the output defective products to increase.
The existing vacuum-pumping device has the following defects: 1) the air holes are easy to block, and defective products can be generated due to blocking; 2) whether the air holes are blocked is not easy to find, and the blockage can be judged only through poor appearance of the produced product, and the defects are generated at the moment; 3) the machine needs to be stopped for cleaning after the vent hole is blocked, material blocks are generated during the stopping for cleaning, so that the material waste and the use amount of the material of the washing machine are increased, the machine needs to be continuously cleaned manually and periodically, the labor intensity is increased, and the production efficiency is reduced; 4) and because the blockage of the air holes is not easy to be found, the produced defective products are mixed into the finished products when the blockage occurs, so that the defects of the finished products are increased. The defects of the air hole vacuumizing device can cause waste of manpower, materials and production efficiency, and the processing cost is increased, so that a good scheme is needed to solve the problem that the air holes of the air hole vacuumizing device are easy to block.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a side edge vacuum pumping apparatus that is not easily clogged, has high production efficiency, and is low in production cost.
A side evacuation device, comprising:
the opening is formed in the side face of a material pipe of the extruder, and molten materials are arranged inside the material pipe;
the double-screw side feeding mechanism is arranged at the opening and comprises a box body, a driving unit and two screws, the two screws are arranged in the box body in parallel, and the driving unit is used for driving the two screws to rotate and mesh in the same direction and sending the molten material with the outflow tendency back into the material pipe;
and the vacuum generating mechanism is arranged below the box body and can generate negative pressure, so that the gas in the material pipe is pumped out to the outside through the screw groove of the screw.
In one embodiment, the driving unit includes:
the driving motor is fixed on the installation box and is connected with the driving gear through the speed reducer;
and the two driven wheels are meshed with the driving gear and are connected with the screw rods in a one-to-one correspondence manner.
In one embodiment, the side wall of the installation box is provided with an observation window, and the observation window is detachably connected with the installation box.
In one embodiment, the vacuum generating mechanism comprises:
the upper end of the three-way pipe is communicated with the bottom of the box body, a vacuum pipe is connected with a side pipe of the three-way pipe, and a detachable sewage draining outlet is formed in the lower end of the three-way pipe;
and one end of the vacuum barrel is communicated with the vacuum pipe, and the other end of the vacuum barrel is connected with a vacuum pump.
In one embodiment, a pressure gauge is arranged on the side wall of the three-way pipe.
In one embodiment, the bottom of the extruder is provided with a fixed platform, and the bottom of the fixed platform is provided with a travelling wheel.
In one embodiment, a sealing ring is arranged on one side of the interior of the box body, which is close to the driving unit, and one end of the screw rod is connected with the box body in a sealing mode through the sealing ring.
Above-mentioned side evacuating device, through setting up the opening on the side of material pipe, then, utilize two screw rod syntropy rotation meshing of drive unit drive, in the melting material that will have the outflow tendency sends back the material pipe, it has the automatically cleaning effect, can not make the melting material gather and block up the opening, thereby guaranteed that vacuum generating mechanism can smoothly take out the gas in the material pipe to the outside through the spiral shell groove of screw rod, it has improved open-ended blocking phenomenon, has avoided the production of defective products, has promoted the production yield, simultaneously, the utility model discloses still have the clearance time that reduces unusual shut down production, reduce production workman's intensity of labour, advantages such as low in production cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a side evacuation device of the present invention;
fig. 2 is a schematic structural diagram of the double-screw side feeding mechanism of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, an embodiment of the present invention provides a side vacuum pumping apparatus, including:
the opening 1 is arranged on the side surface of a material pipe 2 of the extruder, and molten materials are arranged inside the material pipe 2;
the double-screw side feeding mechanism 3 is arranged at the opening 1, the double-screw side feeding mechanism 3 comprises a box body 31, a driving unit 32 and two screws 33, the two screws 33 are arranged in the box body 31 in parallel, and the driving unit 32 is used for driving the two screws 33 to rotate and mesh in the same direction so as to feed the molten material with the tendency of outflow back to the material pipe 2;
and a vacuum generating mechanism 5 disposed below the box 31, wherein the vacuum generating mechanism 5 is capable of generating a negative pressure so that the gas in the material pipe 2 is pumped out to the outside through the screw groove of the screw 33.
Above-mentioned side evacuating device, through setting up opening 1 on the side of material pipe 2, then, utilize two screw rod 33 syntropy rotatory meshing of drive unit 32 drive, the melting material that will have the outflow tendency sends back in material pipe 2, it has the automatically cleaning effect, can not make the melting material gather and block up opening 1, thereby guaranteed that vacuum generating mechanism 5 can smoothly take out the gas in the material pipe 2 to the outside through screw rod 33's spiral shell groove, it has improved opening 1's blocking phenomenon, the production of defective products has been avoided, the production yield has been promoted, and simultaneously, the utility model discloses still have the cleaning time who reduces unusual shut down production, reduce production workman's intensity of labour, low in production cost's advantage.
In an embodiment of the present invention, the driving unit 32 includes:
the driving motor 321 is fixed on the installation box 322, and the driving motor 321 is connected with the driving gear 323 through a speed reducer 325;
two driven wheels 324, wherein the two driven wheels 324 are both meshed with the driving gear 323, and the driven wheels 324 are connected with the screw rods 33 in a one-to-one correspondence manner.
In this embodiment, the driving gear 323 is driven by the driving motor 321 to rotate, so as to simultaneously drive the two driven wheels 324 to rotate in the same direction, thereby enabling the two screws 33 to rotate in the same direction and mesh with each other, so that the volatile crystal and impurities are not accumulated to block the screw grooves of the screws 33, and the gas is smoothly discharged from the screw grooves of the screws 33 backwards.
In an embodiment of the present invention, the side wall of the installation box 322 is provided with an observation window 7, the observation window 7 is detachably connected to the installation box 322. Thus, the meshed state of the driving gear 323 and the driven gear 324 in the installation box 322 can be conveniently observed through the observation window 7, and when an abnormality occurs, the observation window 7 can be detached for maintenance.
In an embodiment of the present invention, the vacuum generating mechanism 5 includes:
the upper end of the three-way pipe 51 is communicated with the bottom of the box body 31, a vacuum pipe 52 is connected to a side pipe of the three-way pipe 51, and a detachable sewage outlet 53 is formed in the lower end of the three-way pipe 51;
and a vacuum barrel 54, one end of the vacuum barrel 54 is communicated with the vacuum pipe 52, and the other end of the vacuum barrel 54 is connected with a vacuum pump 55.
In this embodiment, the inside plastics of material pipe 2 in the melting process, the material that volatile crystal and plastics compatibility are not good can appear and precipitate, and the vacuum tube 52 also can be blockked up to the greasy dirt, consequently, connect vacuum bucket 54 on vacuum tube 52, can inhale the vacuum bucket 54 with volatile crystal, precipitate materials, greasy dirt etc. and store, and it can reduce the influence to vacuum pump 55, improves vacuum pump 55's life.
Optionally, in order to facilitate the measurement of the pressure in the tee 51, a pressure gauge 6 is provided on the side wall of the tee 51.
The utility model discloses an in the embodiment, the bottom of extruder is equipped with a fixed platform 8, fixed platform 8's bottom is equipped with walking wheel 4. Therefore, the whole device can be conveniently moved.
In an embodiment of the present invention, the inside of the box 31 is close to one side of the driving unit 32 is provided with a sealing ring 9, and one end of the screw 33 passes through the sealing ring 9 and the box 31 are connected in a sealing manner. Therefore, the sealing performance can be improved, and air leakage during vacuum pumping can be prevented.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent several embodiments of the present invention, but the present invention should not be construed as being limited thereto. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A side evacuation device, comprising:
the opening is formed in the side face of a material pipe of the extruder, and molten materials are arranged inside the material pipe;
the double-screw side feeding mechanism is arranged at the opening and comprises a box body, a driving unit and two screws, the two screws are arranged in the box body in parallel, and the driving unit is used for driving the two screws to rotate and mesh in the same direction and sending the molten material with the outflow tendency back into the material pipe;
and the vacuum generating mechanism is arranged below the box body and can generate negative pressure, so that the gas in the material pipe is pumped out to the outside through the screw groove of the screw.
2. A side evacuating device as claimed in claim 1, wherein the drive unit comprises:
the driving motor is fixed on the installation box and is connected with the driving gear through the speed reducer;
and the two driven wheels are meshed with the driving gear and are connected with the screw rods in a one-to-one correspondence manner.
3. A side evacuator according to claim 2, wherein the side wall of the mounting box has a viewing window, and the viewing window is detachably connected to the mounting box.
4. A side evacuating device as claimed in claim 1, wherein the vacuum generating mechanism comprises:
the upper end of the three-way pipe is communicated with the bottom of the box body, a vacuum pipe is connected with a side pipe of the three-way pipe, and a detachable sewage draining outlet is formed in the lower end of the three-way pipe;
and one end of the vacuum barrel is communicated with the vacuum pipe, and the other end of the vacuum barrel is connected with a vacuum pump.
5. The side evacuating device of claim 4, wherein a pressure gauge is provided on the sidewall of the tee pipe.
6. The side edge vacuumizing apparatus according to claim 1, wherein a fixed platform is provided at the bottom of the extruder, and walking wheels are provided at the bottom of the fixed platform.
7. The side vacuumizing apparatus according to claim 1, wherein a sealing ring is disposed inside the box body at a side close to the driving unit, and one end of the screw rod is connected with the box body in a sealing manner through the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220216850.5U CN216832109U (en) | 2022-01-26 | 2022-01-26 | Side evacuating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220216850.5U CN216832109U (en) | 2022-01-26 | 2022-01-26 | Side evacuating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216832109U true CN216832109U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220216850.5U Active CN216832109U (en) | 2022-01-26 | 2022-01-26 | Side evacuating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216832109U (en) |
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2022
- 2022-01-26 CN CN202220216850.5U patent/CN216832109U/en active Active
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