CN111455473A - Spinneret plate and processing method thereof - Google Patents
Spinneret plate and processing method thereof Download PDFInfo
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- CN111455473A CN111455473A CN202010290165.2A CN202010290165A CN111455473A CN 111455473 A CN111455473 A CN 111455473A CN 202010290165 A CN202010290165 A CN 202010290165A CN 111455473 A CN111455473 A CN 111455473A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
- D01D4/022—Processes or materials for the preparation of spinnerettes
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a processing method for a spinneret plate, which divides a first plate body into two parts, and respectively processes a first groove and a second groove, thereby not only reducing the processing difficulty and the processing cost and improving the processing efficiency, but also reducing the polishing difficulty and improving the polishing precision and the smoothness of an inner wall; holes are formed at intervals in a circulating mode through linear cutting, so that the problems of high processing difficulty and low processing precision caused by direct drilling are avoided, polishing is facilitated after the holes are disassembled, and the precision of the inner wall is improved; and finally, mounting the processed second plate body in the second groove to form an air gap, and mounting the processed third plate body with the feeding hole at the bottom of the first plate body. The spinneret plate prepared by the method has the advantages of uniform spinning, high spinning quality, convenience in cleaning and longer service life.
Description
Technical Field
The invention relates to a spinneret plate and a processing method thereof.
Background
Spinnerets are commonly used to make nonwoven fabrics by the melt-blown process. Because the inner flow passage and the spinneret orifice inside the spinneret plate are difficult to process and high in polishing difficulty and even cannot be polished, the liquid material entering the inner flow passage generates turbulence therein, so that the filament is not uniform in discharge, and the product quality is affected. Meanwhile, the inner flow channel and the spinneret orifice are not easy to clean, and the service life of the equipment is influenced.
Disclosure of Invention
The first purpose of the invention is to provide a processing method for a spinneret plate, which has the advantages of low difficulty in processing a first groove and a spinneret orifice, low polishing difficulty after disassembly, high polishing precision, convenience in cleaning, uniform spinneret and high product quality.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of processing for a spinneret plate comprising the steps of:
(1) dividing a first plate body into two parts along the direction of a longitudinal central line, and processing first grooves on the butt joint surfaces of the two first sub-plates respectively, so that after the two first sub-plates are spliced, the first grooves on the two sides are spliced with each other to form an inner flow channel, the inner flow channel extends along the direction of the longitudinal central line of the first plate body, the two ends of the inner flow channel are closed, and the top end of the inner flow channel is closed and the bottom end of the inner flow channel is opened; polishing and grinding the two first grooves respectively;
(2) respectively processing second grooves at the top ends of the two first sub-plates, wherein the second grooves extend along the direction parallel to the longitudinal central line of the first plate body, so that one side of each second groove, which is close to the corresponding first groove, is gradually inclined from bottom to top and is close to the corresponding first groove;
(3) splicing the two first sub-plates, forming holes at the top ends of the first sub-plates at intervals in a wire cutting mode, uniformly cutting a plurality of left semicircular holes at intervals on one first sub-plate, simultaneously cutting a plurality of right semicircular holes at intervals on the other first sub-plate, wherein the left semicircular holes and the right semicircular holes are both communicated with the top end of the inner runner downwards, and the left semicircular holes are used for being spliced with the right semicircular holes in a one-to-one correspondence manner to form spinneret holes; the two first sub-plates are disassembled, the left semicircular hole and the right semicircular hole are polished and polished respectively, and then the two first sub-plates are spliced;
(4) dividing a second plate body into two parts along the direction of a longitudinal center line, respectively processing air inlet holes in the two second branch plates, and then correspondingly mounting the two second branch plates on the two second grooves one by one to form air gaps between the second branch plates and the inclined surfaces of the corresponding second grooves, wherein the air gaps are communicated with the air inlet holes;
(5) and a feed hole is formed in a third plate body, the third plate body is arranged at the bottom of the first plate body and used for plugging the inner flow passage, and the feed hole is communicated with the inner flow passage.
Preferably, in the step (1), when the first groove is machined, a protruding portion protruding into the first groove is synchronously machined, so that after the two first split plates are spliced, the protruding portions on the two sides abut against each other.
More preferably, there are a plurality of the protruding portions, and the plurality of the protruding portions are sequentially arranged at intervals along a direction parallel to a longitudinal center line of the first plate body.
Preferably, in step (3), the opening is cut circularly along a path of straight line-left semicircle-straight line-right semicircle by means of linear cutting, wherein the straight line coincides with the longitudinal center line of the first plate body.
Preferably, in the step (3), the hole is cut circularly along a path of a straight line-left semicircle-right semicircle-left semicircle by means of linear cutting, wherein the two left semicircle cuts are at the same position, and the straight line coincides with the longitudinal center line of the first plate body.
Preferably, the cross section of interior runner includes first conical surface, rectangular surface, the second conical surface that from the bottom up connects gradually, first conical surface with the second conical surface is all followed from the bottom up direction toper shrink.
Preferably, in the step (2), the second groove is processed so that the bottom surface extends along the horizontal direction, and the inner side surface gradually inclines and approaches to the spinneret orifice from bottom to top.
Preferably, in the step (4), one side of each of the two second plates, which is close to the spinneret hole, is processed to gradually incline from bottom to top so as to be close to the spinneret hole, and the air gap is located between the side surface of the second plate and the inclined surface of the second groove.
More preferably, the air gap is gradually closed from bottom to top.
The second purpose of the invention is to provide the spinneret plate prepared by the processing method, which is convenient to clean, uniform in spinning and high in product quality.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the processing method for the spinneret plate, the first plate body is divided into two parts, and the first grooves are respectively processed, so that the processing difficulty and the processing cost of the inner runner are reduced, the processing efficiency is improved, the polishing difficulty is reduced, and the smoothness of the inner wall is improved; holes are formed at intervals in a circulating mode through linear cutting, so that the problems of high processing difficulty and low processing precision caused by direct drilling are avoided, polishing is facilitated after the holes are disassembled, and the precision of the inner wall is improved; the spinneret plate manufactured by the method can avoid turbulent flow of liquid materials in the inner flow passage, has uniform spinning and high spinning quality, and is convenient to clean and long in service life.
Drawings
FIG. 1 is a cross-sectional view of a spinneret plate;
FIG. 2 is a cross-sectional view of the first plate;
FIG. 3 is a top view of a spinneret plate;
fig. 4 is a bottom view of the spinneret plate;
fig. 5 is a side view of the spinneret plate.
Wherein: 1. a first sub plate; 2. a first groove; 3. an inner flow passage; 4. a second groove; 5. a spinneret orifice; 6. a second board; 7. an air inlet; 8. air gaps; 9. a third plate body; 10. a feed port; 11. a boss portion; 12. a first conical surface; 13. a rectangular surface; 14. a second tapered surface.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
See fig. 1-5, where fig. 1 and 2 are shown in different positions. The processing method for the spinneret plate comprises the following steps:
(1) the first plate body is divided into two parts along the direction of a longitudinal central line, and first grooves 2 are respectively processed on the butt joint surfaces (the butt joint surfaces refer to two side surfaces of the two first sub-plates 1 facing each other) of the two first sub-plates 1, so that after the two first sub-plates 1 are spliced, the first grooves 2 on the two sides are spliced with each other to form an inner flow channel 3. The inner flow passage 3 extends along the longitudinal center line direction of the first plate body, two ends of the inner flow passage are closed, and the top end of the inner flow passage 3 is closed and the bottom end of the inner flow passage is opened. That is, the whole inner flow channel 3 is located in the first plate body, and the bottom end of the inner flow channel penetrates through the bottom of the first plate body downwards. The first grooves 2 are washed out by a milling cutter, and then the two first grooves 2 are polished and ground respectively.
When processing first recess 2, protruding bellying 11 of locating in first recess 2 is processed out in step for two first minute boards 1 splice back, the bellying 11 mutual butt of both sides. With this arrangement, when two first sub-plates 1 need to be fixed, only bolts need to be driven into the two bosses 11 in alignment.
In the present embodiment, there are a plurality of the protrusions 11, and the plurality of protrusions 11 are sequentially arranged at intervals along a direction parallel to the longitudinal center line of the first plate body. Through this setting, not only strengthen the concatenation of two first minute boards 1, still can not influence the connected state of interior runner 3 along upper and lower direction.
In this embodiment, the cross section of the inner flow channel 3 includes a first conical surface 12, a rectangular surface 13, and a second conical surface 14 connected in sequence from bottom to top, the first conical surface 12 and the second conical surface 14 both taper and contract in the direction from bottom to top, and the protruding portion 11 is connected on the rectangular surface 13. With this arrangement, the flow rate of the jet is increased.
(2) The second grooves 4 are processed at the top ends of the two first sub-plates 1 through milling cutters respectively, the second grooves 4 extend along the direction parallel to the longitudinal central line of the first plate body, and one side, close to the first grooves 2, of each second groove 4 is gradually inclined from bottom to top and close to the first grooves 2. Referring to fig. 1, the right side surface of the left second groove 4 extends obliquely from bottom to top to right, and the left side surface of the right second groove 4 extends obliquely from bottom to top to left.
In the present embodiment, the second groove 4 is processed such that the bottom surface thereof extends in the horizontal direction. The two second grooves 4 penetrate through the corresponding first board body 1 along the direction parallel to the longitudinal center line of the first board body.
Referring to fig. 2, in the left first sub-plate 1, the second groove 4 is located at the upper left of the first groove 2, and the two are not communicated with each other; in the first sub-board on the right side, the second groove 4 is located at the upper right of the first groove 2, and the two grooves are not communicated with each other.
(3) Splice two first minute boards 1, through the mode circulation interval trompil of line cutting on its top, the even a plurality of left semicircle orifices of cutting out in interval on left first minute board 1, the even a plurality of right semicircle orifices of cutting out in interval on the first minute board 1 on right side simultaneously, left semicircle orifice and right semicircle orifice all communicate with 3 tops of interior runner downwards, a plurality of left semicircle orifices are used for the one-to-one with a plurality of right semicircle orifice concatenations form spinneret orifice 5, all spinneret orifices 5 all communicate with 3 tops of interior runner.
The two first sub-plates 1 are disassembled, the left semicircular hole and the right semicircular hole are polished and polished respectively, and then the two first sub-plates are spliced.
In this embodiment, the opening is cut cyclically by means of a linear cut along a path of straight line-left semicircle-straight line-right semicircle, wherein the straight line coincides with the longitudinal center line of the first plate. The cutting path is not repeated in the mode, the cutting speed is high, and the cutting efficiency is high.
In another embodiment, the opening is cut cyclically by means of wire cutting along a path of straight line-left semicircle-right semicircle-left semicircle, wherein the left semicircle is cut at the same position on the left first board 1 for two times, and the straight line coincides with the longitudinal center line of the first board. This way the cutting path is repeated (only once in the left half circle) but the accuracy of the spinneret holes 5 formed after cutting is high.
Because two first minute boards 1 are broken off each other, its concatenation department (being sharp department) has played the effect of location, and the process of substantial processing is promptly processed two first minute boards 1 respectively, processes out left semicircle orifice and right semicircle orifice on two first minute boards 1 respectively, and the processing degree of difficulty is low, and the machining precision is high.
In the present embodiment, the length of the straight line is 0.1mm, the diameters of the left and right semicircular holes are 0.3mm, and the thicknesses of the left and right semicircular holes are 4 mm.
(4) The second plate body is divided into two parts along the direction of the longitudinal central line, air inlet holes 7 are respectively processed in the two second branch plates 6, then the two second branch plates 6 are correspondingly arranged on the two second grooves 4 one by one, so that air gaps 8 are formed between the second branch plates 6 and the inclined surfaces of the corresponding second grooves 4, and the air gaps 8 are communicated with the air inlet holes 7.
And respectively processing one sides of the two second partition plates 6 close to the spinneret orifices 5, namely, the right side surface of the left second partition plate 6 obliquely extends from bottom to top to right, and the left side surface of the right second partition plate 6 obliquely extends from bottom to top to left, as shown in fig. 1. The air gap 8 is located between the inclined surface of the second plate 6 and the inclined surface of the second groove 4.
In the present embodiment, the second section 6 is mounted on the bottom surface of the second groove 4 by its bottom. The air gaps 8 are gradually closed from bottom to top, so that the flow rate of air is increased, and the spinning effect is improved.
(5) A feed hole 10 is formed in the third plate body 9, the third plate body 9 is installed at the bottom of the first plate body, the third plate body 9 is used for plugging the inner flow channel 3, and the feed hole 10 is communicated with the inner flow channel 3. Liquid material is fed into the inner flow channel 3 through the feed openings 10.
When the cleaning device is used for cleaning, only two first sub-plates 1 need to be disassembled, the inner flow channel 3 and the spinneret orifice 5 can be cleaned, namely, the first grooves 2, the left semicircular holes and the right semicircular holes on two sides are respectively cleaned, the cleaning effect is good, and the spinning quality and the service life of the spinneret plate after cleaning are guaranteed.
When the existing spinneret plate is cleaned, the spinneret plate cannot be detached, and needs to be cleaned in a fire baking mode, so that the cleaning effect is poor, the smoothness of the inner wall is reduced after cleaning, and the spinning quality is reduced; the spinneret plate can be damaged after being baked for several times, and the service life of the spinneret plate is extremely short.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. A processing method for a spinneret plate is characterized by comprising the following steps: the method comprises the following steps:
(1) dividing a first plate body into two parts along the direction of a longitudinal central line, and processing first grooves on the butt joint surfaces of the two first sub-plates respectively, so that after the two first sub-plates are spliced, the first grooves on the two sides are spliced with each other to form an inner flow channel, the inner flow channel extends along the direction of the longitudinal central line of the first plate body, the two ends of the inner flow channel are closed, and the top end of the inner flow channel is closed and the bottom end of the inner flow channel is opened; polishing and grinding the two first grooves respectively;
(2) respectively processing second grooves at the top ends of the two first sub-plates, wherein the second grooves extend along the direction parallel to the longitudinal central line of the first plate body, so that one side of each second groove, which is close to the corresponding first groove, is gradually inclined from bottom to top and is close to the corresponding first groove;
(3) splicing the two first sub-plates, forming holes at the top ends of the first sub-plates at intervals in a wire cutting mode, uniformly cutting a plurality of left semicircular holes at intervals on one first sub-plate, simultaneously cutting a plurality of right semicircular holes at intervals on the other first sub-plate, wherein the left semicircular holes and the right semicircular holes are both communicated with the top end of the inner runner downwards, and the left semicircular holes are used for being spliced with the right semicircular holes in a one-to-one correspondence manner to form spinneret holes; the two first sub-plates are disassembled, the left semicircular hole and the right semicircular hole are polished and polished respectively, and then the two first sub-plates are spliced;
(4) dividing a second plate body into two parts along the direction of a longitudinal center line, respectively processing air inlet holes in the two second branch plates, and then correspondingly mounting the two second branch plates on the two second grooves one by one to form air gaps between the second branch plates and the inclined surfaces of the corresponding second grooves, wherein the air gaps are communicated with the air inlet holes;
(5) and a feed hole is formed in a third plate body, the third plate body is arranged at the bottom of the first plate body and used for plugging the inner flow passage, and the feed hole is communicated with the inner flow passage.
2. The processing method for a spinneret plate according to claim 1, wherein: in the step (1), when the first groove is processed, the convex parts convexly arranged in the first groove are synchronously processed, so that the convex parts at two sides are mutually abutted after the two first branch plates are spliced.
3. The processing method for the spinneret plate according to claim 2, wherein: the protruding portion has a plurality ofly, and a plurality ofly the protruding portion is along being on a parallel with the longitudinal center line direction of first plate body is arranged at interval in proper order.
4. The processing method for a spinneret plate according to claim 1, wherein: in the step (3), the hole is cut circularly along a path of a straight line-left semicircle-straight line-right semicircle in a line cutting mode, wherein the straight line is superposed with the longitudinal center line of the first plate body.
5. The processing method for a spinneret plate according to claim 1, wherein: in the step (3), the hole is cut circularly along a path of a straight line-left semicircle-right semicircle-left semicircle in a linear cutting mode, wherein the two times of left semicircle cutting are performed at the same position, and the straight line is superposed with the longitudinal center line of the first plate body.
6. The processing method for a spinneret plate according to claim 1, wherein: the cross section of interior runner includes from up first conical surface, rectangular surface, the second conical surface that connects gradually down, first conical surface with the second conical surface is all followed from up direction toper shrink down.
7. The processing method for a spinneret plate according to claim 1, wherein: in the step (2), the second groove is processed to enable the bottom surface of the second groove to extend along the horizontal direction, and the inner side surface of the second groove gradually inclines from bottom to top to be close to the spinneret orifice.
8. The processing method for a spinneret plate according to claim 1, wherein: in the step (4), one side of each of the two second plates, which is close to the spinneret orifice, is processed respectively, so that the second plates gradually incline from bottom to top and are close to the spinneret orifice, and the air gap is located between the side surface of each second plate and the inclined surface of each second groove.
9. The processing method for the spinneret plate according to claim 8, wherein: and enabling the air gaps to be gradually closed from bottom to top.
10. A spinneret plate produced by the process of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010290165.2A CN111455473A (en) | 2020-04-14 | 2020-04-14 | Spinneret plate and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010290165.2A CN111455473A (en) | 2020-04-14 | 2020-04-14 | Spinneret plate and processing method thereof |
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| CN111455473A true CN111455473A (en) | 2020-07-28 |
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| CN202010290165.2A Pending CN111455473A (en) | 2020-04-14 | 2020-04-14 | Spinneret plate and processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250521A (en) * | 2021-11-24 | 2022-03-29 | 浙江科达包装机械厂 | Processing technology of melt-blown die and melt-blown die |
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