CN214026798U - Accurate injection device of PVC foamer - Google Patents
Accurate injection device of PVC foamer Download PDFInfo
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- CN214026798U CN214026798U CN202022494085.7U CN202022494085U CN214026798U CN 214026798 U CN214026798 U CN 214026798U CN 202022494085 U CN202022494085 U CN 202022494085U CN 214026798 U CN214026798 U CN 214026798U
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- hopper
- reaction kettle
- upper cover
- foaming agent
- rotating shaft
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Abstract
The utility model discloses a PVC foaming agent accurate injection device, which belongs to the field of PVC production equipment, comprising a reaction kettle, a control box is arranged on the side wall of the reaction kettle, the lower end of the reaction kettle is provided with a discharge port, the upper part of the reaction kettle is hermetically connected with an upper cover, the upper cover is hermetically provided with a hopper, a weighing mechanism is hermetically connected between the hopper and the upper cover, the upper part of the hopper is provided with a connecting rod, a telescopic cylinder is fixedly arranged at the central position of the connecting rod, one end of the hopper is connected with a circulating pipe which is communicated with the upper end and the lower end of the reaction kettle after passing through the upper cover, a blanking mechanism is communicated between the circulating pipe and the hopper, the blanking mechanism is rotationally connected on the telescopic cylinder, the circulating pipe is connected with an air pump after passing through the reaction kettle, a spiral coil is fixedly arranged at one end close to the discharge port in the reaction kettle, the spiral coil is communicated with the lower end of the circulating pipe, a plurality of uniformly distributed air outlets are arranged under the spiral coil, the control box is respectively electrically connected with the weighing mechanism and the telescopic cylinder.
Description
Technical Field
The utility model relates to a PVC production facility field, concretely relates to accurate injection device of PVC foamer.
Background
Because the PVC foamer of adopting in the mill is mostly powdered solid, in the PVC foamer interpolation in-process adopts the direct addition reaction liquid more, the PVC foamer floats on reaction liquid upper portion more, easily cause the PVC foamer to condense, influence the mixed effect of PVC foamer in reaction liquid, the gas that produces can drive PVC foaming regulator powder and break away from reaction solution in the reflection of foaming simultaneously, along with gaseous discharge in the reation kettle, influence the accurate nature of PVC foamer interpolation in reaction liquid, and then influence product quality, and the interpolation of PVC foamer adopts artifical the interpolation more, the subjectivity is strong and workman intensity of labour is big.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a pair of accurate injection device of PVC foamer can realize the automatic of foaming agent in the hopper and put in, realizes the accurate control of foamer, can realize the foamer simultaneously and react liquid intensive mixing before the foaming reaction.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a PVC foaming agent precise injection device comprises a reaction kettle, wherein a control box is installed on the side wall of the reaction kettle, a discharge port is arranged at the lower end of the reaction kettle, an upper cover is hermetically connected to the upper part of the reaction kettle, a hopper for placing a foaming agent is hermetically installed on the upper cover, a weighing mechanism is hermetically connected between the hopper and the upper cover, a connecting rod is arranged at the upper part of the hopper, a telescopic cylinder is fixedly installed at the central position of the connecting rod, one end of the hopper penetrates through the upper cover and is connected with a circulating pipe for communicating the upper end and the lower end of the reaction kettle, a blanking mechanism is arranged between the circulating pipe and the hopper and is communicated with the hopper, the blanking mechanism is rotatably connected to the telescopic cylinder, the circulating pipe penetrates through the reaction kettle and is connected with an air pump, a spiral coil is fixedly installed at one end, close to the discharge port, in the reaction kettle, and is communicated with the lower end of the circulating pipe, the spiral coil pipe is provided with a plurality of uniformly distributed air outlets, the air outlets are positioned under the spiral coil pipe, and the control box is electrically connected with the weighing mechanism and the telescopic cylinder respectively.
Preferably, the weighing mechanism comprises a shell which is respectively connected with the hopper and the upper cover in a sealing manner, a plurality of weighing sensors which are uniformly distributed and matched with the hopper are arranged in the shell, the weighing sensors are fixedly arranged on the upper cover, and the weighing sensors are electrically connected with the control box.
Preferably, the central position of the upper cover is fixedly provided with a stirring motor, the stirring motor is connected with a stirring shaft, the stirring shaft is positioned in the reaction kettle, and the stirring shaft is provided with stirring blades.
Preferably, unloading mechanism is including the intercommunication the through-hole of hopper and circulating pipe, but the through-hole interpolation is equipped with free rotation's pivot, form the clearance between through-hole and the pivot, in the pivot fixed mounting with clearance matched with plugging block, the pivot upper end is rotated and is connected on the telescopic cylinder, the pivot other end stretches into the circulating pipe is connected with the drive fan piece, the pivot is located the tablet is installed to the one end of hopper.
Preferably, the through-hole is established to the funnel structure, just in the clearance be equipped with in the pivot with through-hole matched with helical fin, in the clearance be equipped with the shutoff piece in the pivot, the shutoff piece is located clearance upper portion both can telescopic cylinder drives down to move down with the funnel structure the through-hole contact realizes the closure in clearance, can restrict the foamer again and get into the flow in clearance is favorable to keeping the foamer to pass the homogeneity in clearance.
Preferably, the upper cover is provided with an exhaust port for realizing gas recovery, and the exhaust port is located at one end in the reaction kettle and is fixedly provided with a filter screen.
The utility model has the advantages of that:
1. the utility model discloses in realize the accurate measurement of foaming agent weight in the hopper through weighing sensor, drive the motion of pivot in vertical direction through telescopic cylinder and realize the shutoff piece and block up the clearance, realize stopping the input of foaming agent in the hopper, realize weighing sensor and telescopic cylinder's linkage through the control box, can realize the automatic accurate input of foaming agent in the reaction liquid in the reation kettle, and foaming agent once loads in the hopper can accomplish the production of PVC product many times, very big reduction workman's intensity of labour;
2. the utility model discloses in utilize the gas on circulating pipe drive reation kettle upper portion to get into the reation kettle bottom through the air pump, make the gaseous circulation flow in the reation kettle, promote the drive fan piece to rotate and drive the pivot rotation in the gaseous circulation flow in-process, can promote the foamer whereabouts in the feeder hopper, avoid the powdery foamer in the hopper to appear bridging phenomenon in the whereabouts in-process, and the powder foamer of whereabouts can fully mix in the gaseous that flows in the circulating pipe, and evenly distribute in the reaction liquid of reation kettle bottom through the gas outlet on the spiral coil, and fully fuse in the reaction liquid in the in-process that the bubble rises, make the distribution of foamer in the reaction liquid more even;
3. in the utility model, the upper end of the circulating pipe is communicated with the hopper and the upper space of the reaction kettle at the same time, so that the PVC foaming regulator dispersed in the gas in the reaction kettle can be remixed in the reaction liquid;
4. the utility model discloses in through the clearance that the through-hole of funnel structure and pivot cooperate and form, both can restrict the falling speed of powder foamer, make the foamer form the dust in the circulating pipe and flow along with the gas, avoid the foamer to precipitate in the circulating pipe, also can break the foamer of caking in the pivot rotatory in-process, guarantee the granularity of the powder that falls, ensure that the powder can flow along with the gas;
5. in the utility model, the helical fins are matched with the through holes, and the helical fins can effectively avoid the powder from being extruded and adhered on the inner wall of the gap to cause gap blockage in the falling process of the powder due to rotation, so that the falling smoothness of the powder in the hopper can be kept;
6. the utility model discloses in both can cooperate telescopic cylinder to accomplish the shutoff in clearance through the shutoff piece that is located clearance upper portion, can restrict again and get into the quantity of leaking the interior foamer of hopper-shaped through-hole, can avoid influencing the whereabouts of foamer because of suddenly gushing into a large amount of foamers in the clearance.
Drawings
Fig. 1 is a schematic view of the overall structure of a precise PVC foaming agent injection device of the present invention;
fig. 2 is an enlarged view of a in fig. 1.
In the figure: 1-reaction kettle, 2-hopper, 3-circulation pipe, 4-air pump, 5-spiral coil, 6-connecting rod, 7-telescopic cylinder, 8-rotating shaft, 9-material sheet, 10-shell, 11-weighing sensor, 12-driving fan sheet, 13-gap, 14-spiral fin and 15-blocking block.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
The accurate PVC foaming agent injection device as shown in figures 1-2 comprises a reaction kettle 1, wherein a control box is installed on the side wall of the reaction kettle 1, a discharge hole is formed in the lower end of the reaction kettle 1, an upper cover is hermetically connected to the upper portion of the reaction kettle 1, a hopper 2 for placing foaming agent is arranged on the upper cover, a weighing mechanism is arranged between the hopper 2 and the upper cover, a connecting rod 6 is arranged on the upper portion of the hopper 2, a telescopic cylinder 7 is fixedly installed at the central position of the connecting rod 6, one end of the hopper 2 penetrates through the upper cover and is connected with a circulating pipe 3 communicated with the upper end and the lower end of the reaction kettle 1, a blanking mechanism is arranged between the circulating pipe 3 and the hopper 2 and is communicated with the telescopic cylinder 7 in a rotating manner, the circulating pipe 3 penetrates through the side wall of the reaction kettle 1 and is connected with an air pump 4, and a spiral coil pipe 5 is fixedly installed at one end, close to the discharge hole, in the reaction kettle 1, the spiral coil 5 is communicated with the lower end of the circulating pipe 3, a plurality of uniformly distributed air outlets are formed in the spiral coil 5 and located under the spiral coil 5, and the control box is electrically connected with the weighing mechanism and the telescopic cylinder 7 respectively.
The weighing mechanism comprises a shell 10 which is respectively connected with the hopper 2 and the upper cover in a sealing way, a plurality of weighing sensors 11 which are uniformly distributed and matched with the hopper 2 are arranged in the shell 10, the weighing sensors 11 are fixedly arranged on the upper cover, and the weighing sensors 11 are electrically connected with the control box; a stirring motor is fixedly arranged at the central position of the upper cover, the stirring motor is connected with a stirring shaft, the stirring shaft is positioned in the reaction kettle 1, and a plurality of stirring blades which are uniformly distributed are arranged on the stirring shaft; the blanking mechanism comprises a through hole for communicating the hopper 2 with the circulating pipe 3, a rotating shaft 8 capable of rotating freely is inserted into the through hole, a gap 13 is formed between the through hole and the rotating shaft 8, a plugging block 15 matched with the gap 13 is fixedly installed on the rotating shaft 8, the upper end of the rotating shaft 8 is rotatably connected to the telescopic cylinder 7, the other end of the rotating shaft 8 extends into the circulating pipe 3 and is connected with a driving fan blade 12, and a material sheet 9 is installed at one end, located on the hopper 2, of the rotating shaft 8; the through hole is of a funnel structure, the rotating shaft 8 in the gap 13 is provided with a spiral fin 14 matched with the through hole, the rotating shaft 8 in the gap 13 is provided with the blocking block 15, the blocking block 15 is positioned at the upper part of the gap 13, the blocking block can be driven by the telescopic cylinder 7 to move downwards to be in contact with the through hole of the funnel structure to realize the sealing of the gap 13, the flow of foaming agent entering the gap 13 can be limited, and the uniformity of the foaming agent passing through the gap 13 can be kept; the upper cover is provided with an exhaust port for realizing gas recovery, and one end of the exhaust port, which is located in the reaction kettle 1, is fixedly provided with a filter screen sheet.
When the utility model works, powdery foaming agent is poured into the hopper 2, the control box is respectively matched with the weighing sensor 11 and the telescopic cylinder 7 to realize automatic and accurate addition of the foaming agent, wherein in the foaming agent adding process, firstly, reaction liquid is injected into the reaction kettle 1 through the feed inlet, then the control box starts the stirring motor and the air pump 4, the air pump 4 leads the gas on the upper part of the reaction kettle 1 into the bottom of the reaction kettle 1 through the circulating pipe 3, simultaneously, the gas flowing in the circulating pipe 3 drives the rotating shaft 8 to rotate through the driving fan sheet 12, the rotating shaft 8 guides the foaming agent to pass through the gap 13, the foaming agent enters the circulating pipe 3 from the hopper 2 and is atomized under the drive of the flowing gas under the current limiting of the gap 13, the atomized foaming agent enters the spiral coil pipe 5 along with the gas and enters the reaction liquid through the gas outlet, the atomized foaming agent rises along with the gas in the reaction liquid and is mixed with the reaction liquid with different depths in the reaction kettle 1 in the vertical direction, meanwhile, the stirring motor drives the stirring blades to stir the reaction liquid in the reaction kettle 1 through the stirring shaft, so that the atomized foaming agent can be mixed with the reaction liquid in the horizontal direction, the foaming agent which is separated from the reaction solution along with the rising of the gas can be secondarily mixed with the reaction liquid through the circulating pipe 3, the redundant gas in the reaction kettle 1 is discharged through the gas outlet and is prevented from being discharged outside a material foaming agent through the filter screen, and the gas outlet, the gas pump 4 and the hopper 2 are closed to carry out high-temperature banburying on the material in the reaction kettle 1 after the reaction liquid and the foaming agent are uniformly mixed, discharging the final finished product from the discharge hole, and finally closing the stirring motor; in the utility model, the control box respectively realizes the monitoring of the foaming agent in the hopper 2 with the weighing sensor 11 and the telescopic cylinder 7, the weighing sensor 11 detects the weight of the foaming agent in the hopper 2 in real time, when the falling foaming agent reaches the specified weight, the control box controls the telescopic cylinder 7 to work, the telescopic cylinder 7 pushes the rotating shaft 8 to move downwards, so that the plugging block 15 is contacted with the inner wall of the through hole, and the closing of the gap 13 is realized; an auxiliary motor can be arranged between the connecting rod 6 and the telescopic cylinder 7, and the auxiliary motor drives the rotating shaft 8 to rotate, so that the phenomenon that the rotating shaft 8 is static due to overlarge friction force between the rotating shaft 8 and a foaming agent in the hopper 2 is avoided.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (6)
1. A PVC foaming agent accurate injection device is characterized by comprising a reaction kettle, wherein a control box is installed on the side wall of the reaction kettle, a discharge port is arranged at the lower end of the reaction kettle, an upper cover is hermetically connected to the upper part of the reaction kettle, a hopper for placing a foaming agent is hermetically installed on the upper cover, a weighing mechanism is hermetically connected between the hopper and the upper cover, a connecting rod is arranged at the upper part of the hopper, a telescopic cylinder is fixedly installed at the central position of the connecting rod, one end of the hopper penetrates through the upper cover and is connected with a circulating pipe communicated with the upper end and the lower end of the reaction kettle, a blanking mechanism is arranged between the circulating pipe and the hopper and is communicated with the hopper, the blanking mechanism is rotatably connected to the telescopic cylinder, the circulating pipe penetrates through the reaction kettle and is connected with an air pump, a spiral coil is fixedly installed at one end, close to the discharge port, in the reaction kettle, and is communicated with the lower end of the circulating pipe, the spiral coil pipe is provided with a plurality of uniformly distributed air outlets, the air outlets are positioned under the spiral coil pipe, and the control box is electrically connected with the weighing mechanism and the telescopic cylinder respectively.
2. The PVC foaming agent precise injection device as claimed in claim 1, wherein the weighing mechanism comprises a shell which is hermetically connected with the hopper and the upper cover respectively, a plurality of weighing sensors which are uniform and matched with the hopper are arranged in the shell, the weighing sensors are fixedly arranged on the upper cover, and the weighing sensors are electrically connected with the control box.
3. The PVC foaming agent precise injection device as claimed in claim 1, wherein a stirring motor is fixedly installed at the center of the upper cover, the stirring motor is connected with a stirring shaft, the stirring shaft is located in the reaction kettle, and stirring blades are installed on the stirring shaft.
4. The PVC foaming agent precise injection device as claimed in claim 2, wherein the blanking mechanism comprises a through hole communicating the hopper with the circulation tube, a freely rotatable rotating shaft is inserted into the through hole, a gap is formed between the through hole and the rotating shaft, a plugging block matched with the gap is fixedly mounted on the rotating shaft, the upper end of the rotating shaft is rotatably connected to the telescopic cylinder, the other end of the rotating shaft extends into the circulation tube and is connected with a driving fan blade, and a material sheet is mounted at one end of the rotating shaft, which is located at the hopper.
5. The PVC foaming agent precise injection device as claimed in claim 4, wherein the through hole is of a funnel structure, the rotating shaft in the gap is provided with a helical fin matched with the through hole, the rotating shaft in the gap is provided with a blocking block, and the blocking block is positioned at the upper part of the gap.
6. The accurate PVC foaming agent injection device as claimed in claim 1, wherein the upper cover is provided with an exhaust port for recovering gas, and a filter screen is fixedly installed at one end of the exhaust port located in the reaction kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022494085.7U CN214026798U (en) | 2020-11-02 | 2020-11-02 | Accurate injection device of PVC foamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022494085.7U CN214026798U (en) | 2020-11-02 | 2020-11-02 | Accurate injection device of PVC foamer |
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| Publication Number | Publication Date |
|---|---|
| CN214026798U true CN214026798U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022494085.7U Active CN214026798U (en) | 2020-11-02 | 2020-11-02 | Accurate injection device of PVC foamer |
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| CN (1) | CN214026798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953494A (en) * | 2022-03-28 | 2022-08-30 | 浙江亦阳新材料有限公司 | Preparation method of sound-insulation noise-reduction wall cloth with sandwich structure and foaming machine |
-
2020
- 2020-11-02 CN CN202022494085.7U patent/CN214026798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953494A (en) * | 2022-03-28 | 2022-08-30 | 浙江亦阳新材料有限公司 | Preparation method of sound-insulation noise-reduction wall cloth with sandwich structure and foaming machine |
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Address after: 261500 west of Xuxin road and south of Fuhe Road, Renhe Industrial Park, Jiangzhuang Town, Gaomi City, Weifang City, Shandong Province Patentee after: Shandong Yuanbang New Material Co.,Ltd. Address before: 261500 west of Xuxin road and south of Fuhe Road, Renhe Industrial Park, Jiangzhuang Town, Gaomi City, Weifang City, Shandong Province Patentee before: Shandong Yuanbang New Material Co.,Ltd. |