CN220168121U - Melt spinning metering pump - Google Patents
Melt spinning metering pump Download PDFInfo
- Publication number
- CN220168121U CN220168121U CN202320937425.XU CN202320937425U CN220168121U CN 220168121 U CN220168121 U CN 220168121U CN 202320937425 U CN202320937425 U CN 202320937425U CN 220168121 U CN220168121 U CN 220168121U
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- CN
- China
- Prior art keywords
- melt
- pump
- connecting rod
- transmission box
- metering pump
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- 238000002074 melt spinning Methods 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 88
- 239000000155 melt Substances 0.000 claims abstract description 55
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model provides a melt spinning metering pump which comprises a transmission box and a pump head which are connected, wherein a motor, a worm gear, an eccentric wheel and an arched connecting rod which are sequentially connected are arranged in the transmission box, the arched connecting rod is driven by the motor to realize reciprocating motion, a plunger is arranged at the other end of the arched connecting rod, the plunger is connected with a diaphragm of the pump head, a pump cavity is arranged on the pump head, a melt inlet pipe and a melt outlet pipe are arranged on the same side of the pump cavity, a suction valve is arranged on the melt inlet pipe, and a discharge valve is arranged on the melt outlet pipe. The melt spinning metering pump realizes the design that the input end and the output end are positioned on the same side, realizes the input and output of 2-3 pump cavities driven by the same motor, improves the efficiency, reduces the cost and optimizes the direction setting problem of melt inlet pipes and melt outlet pipes.
Description
Technical Field
The utility model relates to a metering pump, in particular to a melt spinning metering pump.
Background
The metering pump is one kind of fluid conveying machinery and features that it can maintain constant flow rate independent of the exhaust pressure and has the functions of conveying, metering and regulating. In the melt spinning process, a metering pump is used for ensuring that the melt is quantitatively extruded from a spinneret orifice in an accurate metering mode to form fibers with certain specifications and uniform thickness, the weight of the melt output in unit time is called as pump supply, and then the pump speed is set through calculation.
As shown in fig. 1, the metering pump comprises a motor 1, a worm gear, an eccentric wheel 4, an arched connecting rod 5, a sliding adjusting seat 6, a pump cavity 8, and a suction valve 10 and a discharge valve 11 on two sides of the pump cavity, and the working principle of the metering pump is as follows: the motor 1 drives the worm 3 through the coupler 2 and is fixedly connected with the eccentric wheel through the worm wheel, so that the eccentric wheel 4 rotates, the eccentric wheel 4 drives the bow-shaped connecting rod 5 to reciprocate in the sliding adjusting seat 6, the other end of the sliding adjusting seat 6 is connected with the middle part of the pump cavity 8, a diaphragm 9 is arranged at the connecting part, and when the plunger 7 of the bow-shaped connecting rod 5 positioned in the sliding adjusting seat moves towards the rear dead center (towards the direction of the eccentric wheel), the diaphragm 9 is driven to move backwards, vacuum is gradually formed in the pump cavity 8, and the suction valve 10 is opened to suck liquid; when the plunger 7 moves towards the front dead centre (away from the eccentric), the diaphragm 9 is driven forward, the suction valve 10 is closed, the discharge valve 11 is opened, and the liquid is discharged when the plunger 7 moves further. The reciprocating circulation of the metering pump forms continuous pressure and quantitative liquid discharge, and the isolation between the fluid to be metered and the driving lubrication mechanism is realized due to the isolation of the diaphragm.
In general, the input end and the output end of the pump cavity are on the same straight line, the melt flows from one end to the other end, a certain length is needed, the heat preservation of the melt needs to be paid attention to in the melt spinning process, and the longer the length is, the more materials are needed for the heat preservation box arranged outside. Further, even if the power of the motor is sufficient, the motor typically drives the operation of one pump chamber 8.
Disclosure of Invention
The utility model provides a melt spinning metering pump, which solves the structural problem when an input end and an output end are positioned on the same side, and the structural problem that the same motor can only drive one pump cavity, and the technical scheme is as follows:
the utility model provides a melt spinning metering pump, includes drive box and the pump head that are connected, is provided with motor, worm gear, eccentric wheel, the bow-shaped connecting rod that connects gradually in the drive box, drives the bow-shaped connecting rod through the motor and realizes reciprocating motion work, the other end of bow-shaped connecting rod is provided with the plunger, the plunger is connected with the diaphragm of pump head, the pump head is provided with the pump chamber, the same side of pump chamber is provided with melt inlet tube, melt exit tube, melt inlet tube is provided with the suction valve, melt exit tube is provided with the discharge valve.
The included angle between the melt inlet pipe and the melt outlet pipe is smaller than 90 degrees.
Further, the included angle between the melt inlet pipe and the melt outlet pipe is 0-45 degrees.
The melt spinning metering pump comprises a main transmission box and an auxiliary transmission box which are arranged on the same shell, the main transmission box and the auxiliary transmission box are connected with pump heads, and an arched connecting rod of the main transmission box drives the arched connecting rod of the auxiliary transmission box to synchronously move through a connecting rod.
The auxiliary transmission boxes are arranged at two sides of the main transmission box, the middle part of the connecting rod is fixedly connected with the arched connecting rods of the main transmission box, and the two ends of the connecting rod are respectively fixedly connected with the arched connecting rods of the two auxiliary transmission boxes, so that the same transmission box drives 3 pump heads.
The melt spinning metering pump comprises a main transmission box and an auxiliary transmission box which are arranged on the same shell, the main transmission box and the auxiliary transmission box are connected with pump heads, supporting rods are arranged at the parts of the shells connected with the main transmission box and the auxiliary transmission box respectively, an arched connecting rod of the main transmission box is connected with a plunger of the third auxiliary transmission box through a swinging rod, one end of the arched connecting rod is hinged with one end of the swinging rod, the other end of the swinging rod is hinged with the plunger, the supporting rods are provided with rotating shafts, the middle part of the swinging rod swings by taking the rotating shafts of the supporting rods as supporting points, and the arched connecting rod of the main transmission box drives the plungers of the auxiliary transmission boxes to move asynchronously through the swinging rods.
The auxiliary transmission case is provided with two, is located the both sides of main transmission case, and the shell position that main transmission case and auxiliary transmission case are connected is provided with the bracing piece, the pendulum rod is provided with left and right sides two, realizes same transmission case and drives three pump head, and main transmission case and auxiliary transmission case asynchronous motion.
The melt inlet pipe is provided with two groups of suction valves, and the melt outlet pipe is provided with two groups of discharge valves.
The melt spinning metering pump realizes the design that the input end and the output end are positioned on the same side, realizes the input and output of 2-3 pump cavities driven by the same motor, improves the efficiency, reduces the cost and optimizes the direction setting problem of melt inlet pipes and melt outlet pipes.
Drawings
FIG. 1 is a schematic illustration of the principle of the metering pump;
FIG. 2 is a schematic diagram of the melt spinning metering pump;
FIG. 3 is a schematic view of a pump head embodiment one of the melt spinning metering pump;
fig. 4 is a schematic structural view of a second embodiment of the pump head of the melt spinning metering pump.
Detailed Description
As shown in fig. 2, the melt spinning metering pump comprises a transmission box and a pump head which are connected, a motor 1, a worm gear, an eccentric wheel 4 and an arc-shaped connecting rod 5 which are sequentially connected are arranged in the transmission box, the arc-shaped connecting rod 5 is driven to work through the motor 1, a plunger 7 is arranged at the other end of the arc-shaped connecting rod 5, the plunger 7 is connected with a membrane 9 of the pump head, the pump head is provided with a pump cavity 8, a melt inlet pipe 12 and a melt outlet pipe 13 are arranged on the same side of the pump cavity 8, a suction valve 10 is arranged on the melt inlet pipe 12, and a discharge valve 11 is arranged on the melt outlet pipe 13.
A fixed block is arranged between the melt inlet pipe 12 and the melt outlet pipe 13, the fixed block is opposite to the diaphragm 9, when the fixed block is used in the same working mode as a common metering pump, the plunger 7 drives the diaphragm 9 to move backwards when moving towards a rear dead center (towards the direction of an eccentric wheel), vacuum is gradually formed in the pump cavity 8, the suction valve 10 is opened, and liquid is sucked; when the plunger 7 moves towards the front dead centre (away from the eccentric), the diaphragm 9 is driven forward, the suction valve 10 is closed, the discharge valve 11 is opened, and the liquid is discharged when the plunger 7 moves further. The melt inlet pipe 12 and the melt outlet pipe 13 are arranged on the same side, so that the external length of the melt flowing through the pump head is reduced, the linear distance is shortened, and when the spatial distance of the heat preservation box arranged on the outer side of the pump head is L, the spatial distance of the heat preservation box arranged on the outer side of the pump head is L/2 by means of the two-fold mode of the melt inlet pipe 12 and the melt outlet pipe 13, so that the heat preservation of the melt is also facilitated, and the heat dissipation is reduced.
Further, the melt inlet pipe 12 and the melt outlet pipe 13 are located on the same side, and the same side also generally means that the included angle between the two is smaller than 90 degrees, and preferably, the included angle between the melt inlet pipe 12 and the melt outlet pipe 13 is 0-45 degrees.
In the first embodiment shown in fig. 3, the melt spinning metering pump may use the same transmission case to drive 2-3 pump heads, where the melt spinning metering pump includes a main transmission case 14, a first auxiliary transmission case 15 and a second auxiliary transmission case 16, where the arcuate connecting rod of the main transmission case 14 is connected with a connecting rod 17, the connecting part is the rear end of the arcuate connecting rod and does not affect the movement of the arcuate connecting rod, one end of the connecting rod 17 is connected with the arcuate connecting rod of the first auxiliary transmission case 15, and the other end is connected with the arcuate connecting rod of the second auxiliary transmission case 16, and such a connection manner is synchronous. Similarly, one main transmission case can also drive only one auxiliary transmission case.
The first auxiliary transmission case 15 and the second auxiliary transmission case 16 lack of the motor 1, the worm gear and the eccentric wheel 4, the power of the corresponding arched connecting rods is derived from the main transmission case 14, the transmission cases of the main transmission case 14, the first auxiliary transmission case 15 and the second auxiliary transmission case 16 are communicated, the shells are fixedly connected together, the input and the output of 2-3 pump cavities which can be driven by the same motor are realized, and the operation of the main transmission case 14, the first auxiliary transmission case 15 and the second auxiliary transmission case 16 is consistent.
In the second embodiment shown in fig. 4, the melt spinning metering pump is provided with a main transmission case 14 and a third auxiliary transmission case 17, the main transmission case 14 and the third auxiliary transmission case 17 adopt the same casing, a supporting rod 19 is arranged at the joint, the arcuate connecting rod 5 of the main transmission case 14 is connected with the plunger 7 of the third auxiliary transmission case 17 through a swinging rod 20, one end of the arcuate connecting rod 5 is hinged with one end of the swinging rod 20, the other end of the swinging rod 20 is hinged with the plunger 7, the supporting rod 19 is provided with a rotating shaft, so that the middle part of the swinging rod 20 is connected with the supporting rod 19 in a shaft way, and thus, the movement modes of the main transmission case 14 and the third auxiliary transmission case 17 are opposite, and the connection mode is asynchronous.
When the arcuate link 5 of the main gear box 14 moves downward in conjunction with the drawing, the melt outlet pipe 22 of the main gear box 14 discharges the melt, the melt inlet pipe 12 of the main gear box 14 is closed, at this time, the plunger 7 of the third auxiliary gear box 17 moves upward, the melt outlet pipe 24 of the third auxiliary gear box 17 is closed, and the melt inlet pipe 23 of the main gear box 14 sucks the melt. Conversely, when the arcuate link 5 of the main gear box 14 moves upward, the melt outlet pipe 22 of the main gear box 14 is closed, the melt inlet pipe 12 of the main gear box 14 sucks in the melt, at this time, the plunger 7 of the third auxiliary gear box 17 moves downward, the melt outlet pipe 24 of the third auxiliary gear box 17 discharges the melt, and the melt inlet pipe 23 of the main gear box 14 is closed.
It can be seen that when the melt inlet pipe 12 and the melt outlet pipe 13 are positioned in the same direction, the space distance through which the melt flows is shortened, and meanwhile, the plurality of rows of parallel arrangement is convenient, so that the same transmission case can drive 2-3 pump heads, and the driving mode comprises synchronous or asynchronous.
The melt spinning metering pump realizes the design that the input end and the output end are positioned on the same side, realizes the input and output of 2-3 pump cavities driven by the same motor, improves the efficiency, reduces the cost and optimizes the direction setting problem of melt inlet pipes and melt outlet pipes.
Claims (8)
1. The utility model provides a melt spinning metering pump, includes drive box and the pump head that are connected, is provided with motor, worm gear, eccentric wheel, the bow-shaped connecting rod that connects gradually in the drive box, drives the bow-shaped connecting rod through the motor and realizes reciprocating motion work, the other end of bow-shaped connecting rod is provided with the plunger, the plunger is connected its characterized in that with the diaphragm of pump head: the pump head is provided with a pump cavity, a melt inlet pipe and a melt outlet pipe are arranged on the same side of the pump cavity, the melt inlet pipe is provided with a suction valve, and the melt outlet pipe is provided with a discharge valve.
2. The melt spinning metering pump of claim 1, wherein: the included angle between the melt inlet pipe and the melt outlet pipe is smaller than 90 degrees.
3. The melt spinning metering pump of claim 1, wherein: the included angle between the melt inlet pipe and the melt outlet pipe is 0-45 degrees.
4. The melt spinning metering pump of claim 1, wherein: the melt spinning metering pump comprises a main transmission box and an auxiliary transmission box which are arranged on the same shell, the main transmission box and the auxiliary transmission box are connected with pump heads, and an arched connecting rod of the main transmission box drives the arched connecting rod of the auxiliary transmission box to synchronously move through a connecting rod.
5. The melt spinning metering pump of claim 4, wherein: the auxiliary transmission boxes are arranged at two sides of the main transmission box, the middle part of the connecting rod is fixedly connected with the arched connecting rods of the main transmission box, and the two ends of the connecting rod are respectively fixedly connected with the arched connecting rods of the two auxiliary transmission boxes, so that the same transmission box drives 3 pump heads.
6. The melt spinning metering pump of claim 1, wherein: the melt spinning metering pump comprises a main transmission box and an auxiliary transmission box which are arranged on the same shell, the main transmission box and the auxiliary transmission box are connected with pump heads, supporting rods are arranged at the parts of the shells connected with the main transmission box and the auxiliary transmission box respectively, an arched connecting rod of the main transmission box is connected with a plunger of the third auxiliary transmission box through a swinging rod, one end of the arched connecting rod is hinged with one end of the swinging rod, the other end of the swinging rod is hinged with the plunger, the supporting rods are provided with rotating shafts, the middle part of the swinging rod swings by taking the rotating shafts of the supporting rods as supporting points, and the arched connecting rod of the main transmission box drives the plungers of the auxiliary transmission boxes to move asynchronously through the swinging rods.
7. The melt spinning metering pump of claim 6, wherein: the auxiliary transmission case is provided with two, is located the both sides of main transmission case, and the shell position that main transmission case and auxiliary transmission case are connected is provided with the bracing piece, the pendulum rod is provided with left and right sides two, realizes same transmission case and drives three pump head, and main transmission case and auxiliary transmission case asynchronous motion.
8. The melt spinning metering pump of claim 1, wherein: the melt inlet pipe is provided with two groups of suction valves, and the melt outlet pipe is provided with two groups of discharge valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320937425.XU CN220168121U (en) | 2023-04-24 | 2023-04-24 | Melt spinning metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320937425.XU CN220168121U (en) | 2023-04-24 | 2023-04-24 | Melt spinning metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168121U true CN220168121U (en) | 2023-12-12 |
Family
ID=89065928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320937425.XU Active CN220168121U (en) | 2023-04-24 | 2023-04-24 | Melt spinning metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168121U (en) |
-
2023
- 2023-04-24 CN CN202320937425.XU patent/CN220168121U/en active Active
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