CN214324120U - Quantitative feeding device of extruder - Google Patents
Quantitative feeding device of extruder Download PDFInfo
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- CN214324120U CN214324120U CN202120399722.4U CN202120399722U CN214324120U CN 214324120 U CN214324120 U CN 214324120U CN 202120399722 U CN202120399722 U CN 202120399722U CN 214324120 U CN214324120 U CN 214324120U
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- storage bin
- metering
- extruder
- discharge pipe
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Abstract
The application relates to a quantitative feeding device of an extruder, which comprises a vacuum feeding machine and a metering mechanism; the vacuum feeding machine comprises a storage bin, a discharge pipe is connected to the storage bin, and a first control valve is arranged on the discharge pipe; the metering mechanism comprises a metering bin and a metering component arranged in the metering bin; the metering assembly comprises a support frame, a weighing instrument arranged on the support frame and a material hopper arranged on the weighing instrument; the discharge pipe extends to the upper part of the material hopper; a discharge port is formed in the bottom wall of the material hopper, and a second control valve is arranged on the discharge port. After the material enters the material hopper, the weighing instrument weighs the material in the material hopper, so that the purpose of quantitative material feeding is achieved.
Description
Technical Field
The application relates to the field of additional devices of extruders, in particular to a quantitative feeding device of an extruder.
Background
The extruder belongs to one of the plastic machinery, and is mainly used for processing plastic products. The extruder generally comprises essentially the following components: the device comprises six parts, namely a transmission part, a feeding device, a charging barrel, a screw, a machine head, a die and the like.
The feeding device of the extruder usually adopts a vacuum feeding machine, and the vacuum feeding machine is suitable for conveying powdery and granular materials and has higher feeding efficiency.
In certain processes, it is often desirable to dose the extruder based on processing requirements. The feeding device of the extruder is then required to have dosing capability. However, the vacuum feeding is singly arranged and the quantitative feeding to the extruder cannot be realized, so that the service performance of the feeding device is influenced.
SUMMERY OF THE UTILITY MODEL
In order to facilitate the realization to extruder internal ration reinforced, the application provides an extruder ration feeding device.
The application provides an extruder ration feeding device adopts following technical scheme:
a quantitative feeding device of an extruder comprises a vacuum feeding machine and a metering mechanism; the vacuum feeding machine comprises a storage bin, a discharge pipe is connected to the storage bin, and a first control valve is arranged on the discharge pipe;
the metering mechanism comprises a metering bin and a metering component arranged in the metering bin; the metering assembly comprises a support frame, a weighing instrument arranged on the support frame and a material hopper arranged on the weighing instrument; the discharge pipe extends to the upper part of the material hopper; a discharge port is formed in the bottom wall of the material hopper, and a second control valve is arranged on the discharge port.
Through adopting above-mentioned technical scheme, the vacuum material loading machine gets into the material storage silo with the material in, the material gets into to the material hopper from the storage silo in, the weighing instrument weighs to the material in the material hopper afterwards, and when material weight in the material hopper reached the requirement, first control valve was closed, can accomplish weighing of material. And finally, opening the second control valve, and enabling the materials in the material hopper to enter the extruder to finish the quantitative feeding process.
Preferably, a partition plate is arranged inside the discharge pipe and arranged along the length direction of the discharge pipe, and the partition plate divides the discharge pipe into a first branch pipe and a second branch pipe; the first control valve comprises a first valve for controlling the opening and closing of the first branch pipe and a second valve for controlling the opening and closing of the second branch pipe.
By adopting the technical scheme, in the initial stage of feeding materials into the material hopper, the first branch pipe and the second branch pipe are both in an open state, and the flow of the materials in the material discharging pipe is maximum at the moment, so that the materials can be conveniently and quickly injected; when the material in the material hopper is close to the required quantity, the first valve or the second valve is closed, only the second branch pipe or the first branch pipe is left to be opened, the flow of the material in unit time is reduced, and the feeding accuracy is improved.
Preferably, the storage bin is provided with a pushing mechanism; the pushing mechanism comprises a motor arranged on the storage bin, a rotating shaft vertically arranged in the storage bin and a helical blade fixed on the rotating shaft; the rotating shaft is rotatably arranged in the storage bin and is connected with the output end of the motor.
Through adopting above-mentioned technical scheme, the motor drives the pivot and rotates to drive the propeller blade operation, can guarantee normal material loading in the leading-in discharging pipe of material in the storage silo.
Preferably, the bottom of the storage bin is arranged in a cone cylinder shape, and the helical blade is positioned at the bottom of the storage bin; the discharging pipe is connected with the small end of the bottom of the storage bin.
Through adopting above-mentioned technical scheme, the storage silo bottom is the setting of awl cylindric, and the material of being convenient for is concentrated in the storage silo bottom to push mechanism is in with material propelling movement to discharging pipe.
Preferably, the helical blade is arranged in a conical shape matched with the shape of the bottom of the storage bin.
Through adopting above-mentioned technical scheme, helical blade can play the guide effect to the material on each position of storage silo bottom when the operation to in the material gets into the discharging pipe.
Preferably, the storage bin is internally and horizontally provided with a mounting pipe, a connecting shaft is rotatably arranged in the mounting pipe, and the rotating shaft is rotatably arranged on the mounting pipe and connected with the connecting shaft; the motor is positioned at the outer side of the storage bin; the end part of the connecting shaft extends to the outer side of the storage bin and is connected with the output end of the motor.
Through adopting above-mentioned technical scheme, the motor is located the outside of storage silo, therefore the motor can not occupy the inner space of storage silo. The installation pipe can play a certain sealing role in the joint of the connecting shaft and the rotating shaft, and the normal work of the pushing mechanism is guaranteed.
Preferably, the opening of the material hopper is connected with a guide pipe, and the guide pipe and the material discharging pipe are both vertically arranged; the upper end of the guide pipe is sleeved on the discharge pipe and is in sliding fit with the discharge pipe.
Through adopting above-mentioned technical scheme, the stand pipe can be sealed between material fill and the discharging pipe, and the time material can fall into completely to the material fill in, guarantees the normal material loading of material.
Preferably, a guard plate is further arranged below the material hopper and connected with the side wall of the metering bin; the material hopper is characterized in that a feeding pipe is vertically arranged at a discharge port of the material hopper, penetrates through the guard plate and is in sliding fit with the guard plate.
Through adopting above-mentioned technical scheme, the material loading pipe is worn to establish on the baffle for the baffle is enough to keep apart the material that gets into in the extruder, makes the material be difficult for splashing to between hopper and the measurement storehouse, guarantees the normal work of measurement subassembly.
In summary, the present application includes at least one of the following beneficial technical effects:
1. during vacuum material loading machine was with the leading-in storage silo of material, the material got into to the material hopper from the storage silo, and the weighing instrument weighs the material in the material hopper afterwards, and when the material weight in the material hopper reached the requirement, first control valve was closed, can accomplish weighing of material. And finally, opening the second control valve, and enabling the materials in the material hopper to enter the extruder to finish the quantitative feeding process.
2. In the initial stage of feeding materials into the material hopper, the first branch pipe and the second branch pipe are both in an open state, and the flow of the materials in the material discharging pipe is maximum at the moment, so that the materials can be conveniently and quickly injected; when the material in the material hopper is close to the required amount, the first valve or the second valve is closed, only the second branch pipe or the first branch pipe is left to be opened, the flow of the material in unit time is reduced, and the feeding accuracy is improved;
3. during pushing mechanism can guarantee normal material loading with the leading-in discharging pipe of the material in the storage silo to motor among the pushing mechanism is located the outside of storage silo, can not occupy the inner space of storage silo.
Drawings
FIG. 1 is a schematic diagram of the structure of an extruder metering device in an embodiment of the present application;
fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.
In the drawings, the reference numbers: 1. a vacuum feeding machine; 11. a feeding fan; 12. a storage bin; 13. a discharge pipe; 131. a partition plate; 14. a first control valve; 141. a first valve; 142. a second valve; 2. a pushing mechanism; 21. a motor; 22. installing a pipe; 23. a connecting shaft; 231. a second bevel gear; 24. a rotating shaft; 241. a first bevel gear; 25. a helical blade; 3. a metering mechanism; 31. a metering bin; 32. a metering assembly; 321. a support frame; 322. a weighing instrument; 323. a material hopper; 324. a guide tube; 325. feeding pipes; 326. a second control valve; 33. and (4) protecting the plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses extruder ration feeding device. Referring to fig. 1, the extruder quantitative feeding device includes a vacuum feeder 1 and a metering mechanism 3 disposed at one side of the vacuum feeder 1. Vacuum material loading machine 1 includes material loading fan 11 and sets up storage silo 12 in material loading fan 11 one side, and material loading fan 11 passes through the pipeline and is connected with the feed inlet of storage silo 12, and consequently material loading fan 11 can let in the material to storage silo 12 inside.
Referring to fig. 1 and 2, still be provided with push mechanism 2 on the storage silo 12, push mechanism 2 sets up the installation pipe 22 inside the storage silo 12 including installing motor 21 and the level in the storage silo 12 outside, the both ends of installation pipe 22 are all fixed on the storage silo 12 inner wall, the inside level of installation pipe 22 is provided with connecting axle 23, the both ends of connecting axle 23 are all rotated and are installed on storage silo 12, and the one end of connecting axle 23 is connected with motor 21's output, make motor 21 can drive connecting axle 23 and rotate.
Referring to fig. 2, a rotating shaft 24 is vertically disposed right below the connecting shaft 23, the rotating shaft 24 is inserted into the mounting tube 22, and the rotating shaft 24 at the upper end of the rotating shaft 24 is mounted on the mounting tube 22. The upper end of the rotating shaft 24 is also coaxially provided with a first bevel gear 241, and the connecting shaft 23 is coaxially provided with a second bevel gear 231 engaged with the first bevel gear 241. The lower end of the rotating shaft 24 is also fixed with a helical blade 25, so that the motor 21 can drive the rotating shaft 24 and the helical blade 25 to rotate.
Referring to fig. 2, storage silo 12 bottom is the setting of awl cylindric, and helical blade 25 is located storage silo 12 bottom and is the toper setting with storage silo 12 bottom shape assorted to helical blade 25's circumference edge and storage silo 12 lateral wall looks butt, consequently, when helical blade 25 rotated, helical blade 25 can promote the material and continuously move down. The lower extreme of storage silo 12 is connected with discharging pipe 13, and the material can be through material pipe discharge storage silo 12, only needs control helical blade 25's rotation, can control the ration of material and discharge.
Referring to FIG. 2, a partition plate 131 is provided inside the tapping pipe 13, the partition plate 131 being provided along the length of the tapping pipe 13 and fixed to the tapping pipe 13, the partition plate 131 dividing the tapping pipe 13 into a first branch pipe and a second branch pipe; the discharge pipe 13 is provided with a first control valve 14, and the first control valve 14 includes a first valve 141 installed on the first branch pipe and a second valve 142 installed on the second branch pipe, the first valve 141 controls opening and closing of the first branch pipe, and the second valve 142 controls opening and closing of the second branch pipe, so that the first control valve 14 can control the discharge speed of the discharge pipe 13 by changing the opening area of the discharge pipe 13.
Referring to fig. 1, the metering mechanism 3 includes a metering bin 31 disposed directly below the storage bin 12, and a metering assembly 32 is disposed in the metering bin 31. The metering assembly 32 comprises a supporting frame 321 fixed inside the metering bin 31, a weighing instrument 322 is installed on the supporting frame 321, a material hopper 323 is arranged on the weighing instrument 322, and the weighing instrument 322 can weigh materials inside the material hopper 323. A material hopper 323 is located directly below the discharge pipe 13. The upper end opening of material hopper 323 is provided with and is connected with guide pipe 324, guide pipe 324 is vertical to be set up to guide pipe 324 upper end cover is established on discharging pipe 13 and with discharging pipe 13 sliding fit, and the material can get into in material hopper 323 through guide pipe 324.
Referring to fig. 1, a discharge port is formed at the lower end of the material hopper 323, a feeding pipe 325 communicated with the discharge port is connected to the lower portion of the material hopper 323, and the feeding pipe 325 is also vertically arranged. The feeding pipe 325 is also provided with a second control valve 326, and after the weighing of the material hopper 323 is completed, the second control valve 326 is opened, so that the material in the material hopper 323 is discharged through the feeding pipe 325.
Referring to fig. 1, a protection plate 33 is further arranged below the material hopper 323, the protection plate 33 is fixed on the side wall of the metering bin 31, and the feeding pipe 325 penetrates through the protection plate 33 and is in sliding fit with the protection plate 33, so that the protection plate 33 can seal the inside of the metering bin 31, and the weighing precision of the weighing instrument 322 is prevented from being affected by dust generated during the feeding of the powdery material.
The implementation principle of the quantitative feeding device of the extruder in the embodiment of the application is as follows: the feeding fan 11 is started, and the feeding fan 11 sucks the material into the storage bin 12. The motor 21 is started, the motor 21 drives the helical blade 25 to operate, the first valve 141 and the second valve 142 are opened simultaneously, the material is introduced into the material hopper 323 through the discharge pipe 13, and the weighing instrument 322 can weigh the material.
When the weight of the material in the material hopper 323 is close to the set weight, the first valve 141 is closed, the second branch pipe is kept in an open state, the rotating speed of the motor 21 is halved, and the discharging speed of the discharging pipe 13 is lower at the moment, so that the discharging precision is convenient to guarantee. When the weight of the material in the material hopper 323 reaches the set weight, the second valve 142 is closed, the second control valve 326 is opened, and the material in the material hopper 323 can be discharged out of the material hopper 323 through the material feeding pipe 325, so that the material feeding is completed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an extruder ration feeding device which characterized in that: comprises a vacuum feeding machine (1) and a metering mechanism (3); the vacuum feeding machine (1) comprises a storage bin (12), a discharge pipe (13) is connected to the storage bin (12), and a first control valve (14) is arranged on the discharge pipe (13);
the metering mechanism (3) comprises a metering bin (31) and a metering component (32) arranged in the metering bin (31); the metering assembly (32) comprises a supporting frame (321) fixed on the metering bin (31), a weighing instrument (322) arranged on the supporting frame (321) and a material hopper (323) arranged on the weighing instrument (322); the discharge pipe (13) extends to the upper part of the material hopper (323); a discharge port is formed in the bottom wall of the material hopper (323), and a second control valve (326) is arranged on the discharge port.
2. The extruder dosing device according to claim 1, characterized in that: a partition plate (131) is arranged inside the discharge pipe (13), the partition plate (131) is arranged along the length direction of the discharge pipe (13), and the discharge pipe (13) is divided into a first branch pipe and a second branch pipe by the partition plate (131); the first control valve (14) comprises a first valve (141) for controlling the opening and closing of the first branch pipe and a second valve (142) for controlling the opening and closing of the second branch pipe.
3. The extruder dosing device according to claim 1, characterized in that: the storage bin (12) is provided with a pushing mechanism (2); the pushing mechanism (2) comprises a motor (21) arranged on the storage bin (12), a rotating shaft (24) vertically arranged in the storage bin (12) and a helical blade (25) fixed on the rotating shaft (24); the rotating shaft (24) is rotatably arranged in the storage bin (12) and is connected with the output end of the motor (21).
4. The extruder dosing device according to claim 3, characterized in that: the bottom of the storage bin (12) is arranged in a conical cylinder shape, and the spiral blade (25) is positioned at the bottom of the storage bin (12); the discharge pipe (13) is connected with the small end of the bottom of the storage bin (12).
5. The extruder dosing device according to claim 4, characterized in that: the spiral blade (25) is arranged in a conical shape matched with the shape of the bottom of the storage bin (12).
6. The extruder dosing device according to claim 3, characterized in that: a mounting pipe (22) is horizontally arranged in the storage bin (12), a connecting shaft (23) is rotatably arranged in the mounting pipe (22), and the rotating shaft (24) is rotatably arranged on the mounting pipe (22) and connected with the connecting shaft (23); the motor (21) is positioned at the outer side of the storage bin (12); the end part of the connecting shaft (23) extends to the outer side of the storage bin (12) and is connected with the output end of the motor (21).
7. The extruder dosing device according to claim 1, characterized in that: the opening of the material hopper (323) is connected with a guide pipe (324), and the guide pipe (324) and the discharge pipe (13) are both vertically arranged; the upper end of the guide pipe (324) is sleeved on the discharge pipe (13) and is in sliding fit with the discharge pipe (13).
8. The extruder dosing device according to claim 1, characterized in that: a protective plate (33) is further arranged below the material hopper (323), and the protective plate (33) is connected with the side wall of the metering bin (31); a feeding pipe (325) is vertically arranged at a discharge port of the material hopper (323), and the feeding pipe (325) penetrates through the guard plate (33) and is in sliding fit with the guard plate (33).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202120399722.4U CN214324120U (en) | 2021-02-23 | 2021-02-23 | Quantitative feeding device of extruder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120399722.4U CN214324120U (en) | 2021-02-23 | 2021-02-23 | Quantitative feeding device of extruder |
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CN214324120U true CN214324120U (en) | 2021-10-01 |
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CN202120399722.4U Active CN214324120U (en) | 2021-02-23 | 2021-02-23 | Quantitative feeding device of extruder |
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- 2021-02-23 CN CN202120399722.4U patent/CN214324120U/en active Active
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