CN216274980U - Electrostatic electret device for melt-blowing - Google Patents
Electrostatic electret device for melt-blowing Download PDFInfo
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- CN216274980U CN216274980U CN202122818037.3U CN202122818037U CN216274980U CN 216274980 U CN216274980 U CN 216274980U CN 202122818037 U CN202122818037 U CN 202122818037U CN 216274980 U CN216274980 U CN 216274980U
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Abstract
The utility model relates to an electrostatic electret device for melt-blowing, which comprises two moving mechanisms symmetrically arranged left and right, two lifting mechanisms respectively fixed on the moving ends of the two moving mechanisms, and a discharge rod arranged between the lifting ends of the two lifting mechanisms; the moving mechanism comprises a supporting seat, two rollers which are rotatably fixed in the supporting seat and arranged in front and at the back, a belt sleeved outside the two rollers, and a stepping motor fixed on one side of the supporting seat, wherein a rotating shaft of the stepping motor is transversely arranged and inserted and fixed in any one of the rollers; the utility model can fully ensure that the charge injected onto the melt-blown fabric is uniformly distributed, thereby greatly improving the processing qualification rate; and the disassembly steps of the discharge rod are effectively simplified so as to realize the quick and convenient replacement of the discharge rod, thereby improving the processing efficiency.
Description
Technical Field
The utility model relates to an electrostatic electret device for melt-blowing.
Background
The melt-blown non-woven fabric is a special fabric formed by sucking PP polypropylene into a screw extruder through a hopper to be extruded, so that a melt is extruded from micropores under certain pressure and is stretched into superfine fibers under the action of high-speed hot air flow, and finally the fibers are sprayed onto a net forming curtain to be mutually bonded by utilizing the self waste heat; the melt-blown non-woven fabric has an extremely fine fiber structure, is irregularly distributed, and has a larger surface area, so that fine particles can be effectively blocked; the fabric to which static electricity is not applied is still insufficient in virus filtering capability, and only about 30% to 60% of viruses can be filtered, and static electricity needs to be injected into the melt-blown nonwoven fabric in order to improve the virus filtering capability of the melt-blown nonwoven fabric.
At present, the most common electrostatic injection method is to conduct charges to melt-blown cloth by using an electrostatic electret device in the melt-blown web forming process; the existing electrostatic electret device cannot adjust the upper and lower height, the front and back position and the inclination between two ends of a discharge rod, so that the charge injected into melt-blown cloth is uneven, the processing qualification rate is low, the discharge rod is troublesome to disassemble, the operation steps are complex, more time is consumed when the discharge rod needs to be replaced after being used for a period of time, the processing efficiency is further influenced, and the improvement is waited for.
SUMMERY OF THE UTILITY MODEL
In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide a method for fully ensuring the uniform distribution of charges injected onto a meltblown fabric so as to greatly improve the processing yield; but also can quickly and conveniently replace the discharging rod to improve the processing efficiency.
The technical scheme adopted by the utility model for solving the technical problems is as follows: an electrostatic electret device for melt-blowing is characterized by comprising two moving mechanisms which are arranged in bilateral symmetry, two lifting mechanisms which are respectively fixed on the moving ends of the two moving mechanisms, and a discharge rod which is arranged between the lifting ends of the two lifting mechanisms; the moving mechanism comprises a supporting seat, two rollers which are rotatably fixed in the supporting seat and arranged in front and at the back, a belt sleeved outside the two rollers, and a stepping motor fixed on one side of the supporting seat, wherein a rotating shaft of the stepping motor is transversely arranged and inserted and fixed in any one of the rollers; the lifting mechanism comprises a base, an upper plate transversely arranged above the base and two guide columns vertically inserted in the upper plate and distributed front and back; the lower ends of the two guide columns are fixed on the base, the front side and the rear side of the upper plate are also inserted with a locking screw which is transversely arranged in a threaded manner, the threaded ends of the two locking screws are respectively tightly propped against the outer walls of the two guide columns, and the bases in the two lifting mechanisms are respectively fixed on the tops of belts in the two moving mechanisms; both ends still all are fixed respectively the detachable on the upper plate among two elevating system through an L type support about the discharge rod.
Preferably, the left and right sides of base still all is fixed with two symmetries and rotatable connecting rod, correspondingly, a cross slot has all been seted up to the left and right sides of upper plate, the tip cross arrangement of left two connecting rod and all activity in a left cross slot, the tip cross arrangement of right side two connecting rod and all activity in a cross slot on right side.
Preferably, the inside interlude of one end of L type support is provided with two vertical distribution's reference column, two the lower extreme of reference column is all fixed at the top of a corresponding upper plate, the one end of L type support still interlude is provided with the knob screw of a vertical distribution, the threaded end of knob screw inserts the spiro union inside the upper plate.
Preferably, the other ends of the two L-shaped brackets are provided with a cavity hole, the left end and the right end of the discharge rod are respectively inserted into the two cavity holes, the front side or the rear side of the other end of each L-shaped bracket is also inserted with a transversely arranged jacking screw, and the threaded end of the jacking screw extends into the cavity hole and jacks the outer wall of the corresponding end of the discharge rod.
Preferably, the L-shaped bracket is made of an insulating material.
Compared with the prior art, the utility model has the advantages that: the utility model can adjust the upper and lower height, the front and back position and the inclination between the two ends of the discharging rod according to the requirement, thereby fully ensuring the charge injected into the melt-blown cloth to be uniformly distributed and greatly improving the processing qualified rate; and the disassembly steps of the discharge rod are effectively simplified so as to realize the quick and convenient replacement of the discharge rod, thereby improving the processing efficiency.
Drawings
FIG. 1 is a right front side top view structural diagram of the present invention;
FIG. 2 is a partial front view block diagram of the present invention;
fig. 3 is a right side view structural view of the elevating mechanism of the present invention.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the utility model have been omitted.
As shown in fig. 1 to 3, an electrostatic electret device for melt-blowing includes two moving mechanisms symmetrically arranged left and right, two lifting mechanisms 4 respectively fixed on the moving ends of the two moving mechanisms, and a discharging rod 6 arranged between the lifting ends of the two lifting mechanisms 4; the moving mechanism comprises a supporting seat 1, two rollers 2 which are rotatably fixed in the supporting seat 1 and arranged in front and back, a belt 3 sleeved outside the two rollers 2, and a stepping motor 11 fixed on one side of the supporting seat 1, wherein a rotating shaft of the stepping motor 11 is transversely arranged and inserted and fixed in any one of the rollers 2; the lifting mechanism 4 comprises a base 41, an upper plate 42 transversely arranged above the base 41 and two guide columns 43 vertically penetrated in the upper plate 42 and distributed front and back; the lower ends of the two guide columns 43 are fixed on the base 41, the front side and the rear side of the upper plate 42 are also respectively inserted and screwed with a locking screw 45 which is transversely arranged, the threaded ends of the two locking screws 45 are respectively tightly propped against the outer walls of the two guide columns 43, and the bases 41 in the two lifting mechanisms 4 are respectively fixed on the tops of the belts 3 in the two moving mechanisms; the left end and the right end of the discharging rod 6 are respectively detachably fixed on the upper plates 42 in the two lifting mechanisms 4 through an L-shaped bracket 5.
The left and right sides of the base 41 are fixed with two symmetrical and rotatable connecting rods 44, correspondingly, the left and right sides of the upper plate 42 are provided with a transverse groove 421, the ends of the two connecting rods 44 on the left side are arranged in a crossed manner and move in the transverse groove 421 on the left side, and the ends of the two connecting rods 44 on the right side are arranged in a crossed manner and move in the transverse groove 421 on the right side.
The inside interlude of one end of L type support 5 is provided with two vertical distribution's reference column 51, and the top at a corresponding upper plate 42 is all fixed to the lower extreme of two reference columns 51, and the one end of L type support 5 still alternates and is provided with the knob screw 52 of a vertical distribution, and the screwed joint is inserted inside upper plate 42 to the threaded end of knob screw 52.
The other ends of the two L-shaped brackets 5 are provided with a cavity hole 54, the left end and the right end of the discharge rod 6 are inserted into the two cavity holes 54 respectively, the front side or the rear side of the other end of each L-shaped bracket 5 is also inserted with a transversely arranged jacking screw 53 in a threaded manner, and the threaded end of the jacking screw 53 extends into the cavity hole 54 and jacks the outer wall of the corresponding end of the discharge rod 6.
The L-shaped bracket 5 is made of an insulating material.
The working principle is as follows: the supporting seats 1 of the two moving mechanisms are both arranged on a web-forming curtain bracket of the melt-blowing machine; then, each locking screw 45 is firstly unscrewed, then the height of each upper plate 42 is adjusted up and down by means of the sliding connection relationship between each upper plate 42 and the two guide columns 43, so that the heights of the left end and the right end of the discharge rod 6 are adjusted to be in proper positions, and then each locking screw 45 is screwed; finally, applying direct-current high-voltage electricity to the discharge rod 6 to start charge injection to the melt-blown fabric; during operation, the stepping motors 11 in the two moving mechanisms can be simultaneously started to work, so that one of the rollers 2 connected with the rotating shaft of the stepping motor 11 is driven to rotate, the other roller 2 is driven to rotate by means of the belt 3, so that the belt 3 runs, and the supporting seat 1 in the two moving mechanisms is driven to move back and forth to adjust the front and back positions of the discharge rod 6.
The utility model can adjust the height of the discharging rod 6, the inclination between the front and back positions and the two ends according to the requirement, thereby fully ensuring the charge injected into the melt-blown cloth to be uniformly distributed and greatly improving the processing qualified rate; and the disassembly steps of the discharge rod are effectively simplified so as to realize the quick and convenient replacement of the discharge rod, thereby improving the processing efficiency.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. An electrostatic electret device for melt-blowing is characterized by comprising two moving mechanisms which are arranged in bilateral symmetry, two lifting mechanisms which are respectively fixed on the moving ends of the two moving mechanisms, and a discharge rod which is arranged between the lifting ends of the two lifting mechanisms; the moving mechanism comprises a supporting seat, two rollers which are rotatably fixed in the supporting seat and arranged in front and at the back, a belt sleeved outside the two rollers, and a stepping motor fixed on one side of the supporting seat, wherein a rotating shaft of the stepping motor is transversely arranged and inserted and fixed in any one of the rollers; the lifting mechanism comprises a base, an upper plate transversely arranged above the base and two guide columns vertically inserted in the upper plate and distributed front and back; the lower ends of the two guide columns are fixed on the base, the front side and the rear side of the upper plate are also inserted with a locking screw which is transversely arranged in a threaded manner, the threaded ends of the two locking screws are respectively tightly propped against the outer walls of the two guide columns, and the bases in the two lifting mechanisms are respectively fixed on the tops of belts in the two moving mechanisms; both ends still all are fixed respectively the detachable on the upper plate among two elevating system through an L type support about the discharge rod.
2. The electrostatic electret device for melt-blowing according to claim 1, wherein two symmetrical and rotatable connecting rods are fixed on both left and right sides of the base, correspondingly, a transverse groove is formed on both left and right sides of the upper plate, the ends of the two connecting rods on the left side are arranged in a crossed manner and are all movable in the transverse groove on the left side, and the ends of the two connecting rods on the right side are arranged in a crossed manner and are all movable in the transverse groove on the right side.
3. The electrostatic electret device for melt-blowing according to claim 1, wherein two positioning columns vertically distributed are inserted into one end of the L-shaped support, the lower ends of the two positioning columns are fixed on the top of a corresponding upper plate, a knob screw vertically distributed is inserted into one end of the L-shaped support, and the threaded end of the knob screw is inserted and screwed into the upper plate.
4. The electrostatic electret device for melt-blowing according to claim 3, wherein a cavity is formed at each of the other ends of the two L-shaped brackets, the left and right ends of the discharge rod are respectively inserted into the two cavity, a transversely-arranged jacking screw is further inserted and screwed into the front side or the rear side of each of the other ends of the L-shaped brackets, and the threaded end of the jacking screw extends into the cavity and jacks the outer wall of the corresponding end of the discharge rod.
5. The electrostatic electret for melt-blowing according to claim 4, wherein the L-shaped support is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122818037.3U CN216274980U (en) | 2021-11-17 | 2021-11-17 | Electrostatic electret device for melt-blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122818037.3U CN216274980U (en) | 2021-11-17 | 2021-11-17 | Electrostatic electret device for melt-blowing |
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| CN216274980U true CN216274980U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122818037.3U Active CN216274980U (en) | 2021-11-17 | 2021-11-17 | Electrostatic electret device for melt-blowing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016281A (en) * | 2021-11-17 | 2022-02-08 | 江阴职业技术学院 | Electrostatic electret device for melt-blowing |
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2021
- 2021-11-17 CN CN202122818037.3U patent/CN216274980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016281A (en) * | 2021-11-17 | 2022-02-08 | 江阴职业技术学院 | Electrostatic electret device for melt-blowing |
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