CN111645398A - Overfeeding heat setting process for needled filter felt - Google Patents
Overfeeding heat setting process for needled filter felt Download PDFInfo
- Publication number
- CN111645398A CN111645398A CN202010497778.3A CN202010497778A CN111645398A CN 111645398 A CN111645398 A CN 111645398A CN 202010497778 A CN202010497778 A CN 202010497778A CN 111645398 A CN111645398 A CN 111645398A
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- China
- Prior art keywords
- tension
- needled filter
- filter felt
- roller
- needled
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B37/1054—Regulating the dimensions of the laminate, e.g. by adjusting the nip or platen gap
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
Abstract
The invention discloses an overfeeding heat setting process for a needled filter felt, which comprises the following processes: s1, unreeling the needled filter felt through an unreeling machine; s2, clamping the needled filter felt by a first clamping guide roller set after passing through a tensioning and regulating device; s3, penetrating the needled filter felt through a gap between the rubber wheel and the brush wheel, and then puncturing and holding the needled filter felt by a rigid needle on the holding needle clip plate from bottom to top; s4, adjusting the tension of the needled filter felt on the tension adjusting and controlling device, and stopping tension adjustment after the breadth is contracted to the set requirement; s5, conveying the needled filter felt by the aid of the holding needle clamp plate, penetrating the needled filter felt through the drying oven, and performing hot setting, wherein the conveying speed of the first clamping guide roller set is 1.2-1.3 times that of the holding needle clamp plate; and S6, winding the shaped needled filter felt on a winding machine for winding after passing through a second clamping guide roller set. The heat setting process flow is simple, the fiber arrangement compactness of the needled filter felt can be increased, and the formed needled filter felt has a stable structure.
Description
Technical Field
The invention relates to an overfeeding heat setting process for a needled filter felt, belonging to the technical field of heat setting processes.
Background
At present, the membrane filter material is a key filter material for purifying industrial smoke dust and is formed by laminating a needle-punched filter felt and a polytetrafluoroethylene microporous membrane. The needled filter felt is a main structure of a membrane-covered filter material and is also a key material for capturing micro-nano-scale particles in industrial smoke dust. The needled filter felt is generally formed by carding high-performance fibers into a net, compounding the net with reinforcing base cloth and then needling and reinforcing the net. Due to the mechanical puncturing effect of the rigid puncture needles, a large number of microscale holes exist in the needled felt, and a large number of gaps exist among fibers. When dusty gas contacts the needled felt, micro-nano solid particles in the gas easily penetrate through holes and fiber gaps in the needled felt and enter the atmosphere, so that the human respiratory system is damaged. Aiming at the problem of large holes and fiber gaps inside the needled felt, no effective treatment method is reported at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the overfeeding heat setting process for the needled filter felt is simple in process flow, the fiber arrangement compactness of the needled filter felt can be increased, and the formed needled filter felt is stable in structure.
In order to solve the technical problems, the technical scheme of the invention is as follows: an overfeeding heat setting process for a needled filter felt comprises the following processes:
s1, unreeling the coiled needled filter felt through an unreeling machine;
s2, clamping the needled filter felt by a first clamping guide roller set after passing through a tensioning and regulating device;
s3, penetrating the needled filter felt through a gap between the rubber wheel and the brush wheel, and then puncturing and holding the needled filter felt by a rigid needle on the holding needle clip plate from bottom to top;
s4, adjusting the tension of the needled filter felt on the tension adjusting and controlling device, and stopping tension adjustment after the breadth is contracted to the set requirement;
s5, arranging a plurality of holding needle clamping plates on a circulating chain which longitudinally penetrates through an oven, conveying the needled filter felt by the holding needle clamping plates and penetrating the oven for hot setting, wherein the conveying speed of the first clamping guide roller group is 1.2-1.3 times that of the holding needle clamping plates;
and S6, winding the shaped needled filter felt on a winding machine for winding after passing through a second clamping guide roller set.
As a preferred scheme, the tensioning regulation and control device comprises a rack, wherein a first guide roller, an upper left tension roller, a lower left tension roller, an upper right tension roller, a lower right tension roller and a second guide roller are arranged on the rack, a roller seat of the lower left tension roller is slidably mounted in a vertical adjusting groove of the rack, and the roller seat of the lower left tension roller is driven by a tension adjusting power device to slide in the vertical adjusting groove; the tension adjusting mode is as follows:
the needled filter felt sequentially passes through the first guide roller and then sequentially passes through and winds the upper left tension roller, the lower left tension roller, the upper right tension roller, the lower right tension roller and the second guide roller, the controller controls the tension adjusting power device to drive the roller seat of the lower left tension roller to slide, the tension of the needled filter felt is changed by changing the height of the roller seat, and the tension sensor is used for detecting the tension of the needled filter felt and feeding the tension back to the controller to realize closed-loop feedback.
As a preferable scheme, the central lines of the left upper tension roller and the right upper tension roller are positioned on the same horizontal plane, and the height from the ground is 280-330 cm.
Preferably, the temperature for heat setting in the oven in the step S5 is 130-290 ℃.
Preferably, the width shrinkage rate in step S4 is 1-8%.
Preferably, the height of the left lower tension roller from the horizontal plane is adjusted within a range of 30-250 cm.
As a preferable scheme, the center lines of the first guide roller and the right lower tension roller are positioned on the same horizontal plane, and the distance from the horizontal plane is 80-100 cm.
After the technical scheme is adopted, the invention has the effects that: : and (3) adjusting the tension of the needled filter felt through a tension adjusting and controlling device, extending the needled filter felt in the longitudinal direction and transversely contracting the filter felt, when the breadth reaches a set transverse contraction, sending the needled filter felt into an oven in an overfeeding mode, releasing the fiber stress in the needled filter felt at a high temperature, reducing fiber gaps, increasing the fiber arrangement compactness, and obtaining the needled felt with higher filtering efficiency.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic process flow diagram of an embodiment of the present invention;
in the drawings: 1. an unreeling machine; 2. needling the filter felt; 3. a tension regulating device; 31. a first guide roller; 32. an upper left tension roller; 33. a left lower tension roller; 34. a vertical adjustment groove; 35. an upper right tension roller; 36. a right lower tension roller; 37. a second guide roller; 38. a tension sensor; 4. a first clamping guide roller set; 5. a rubber wheel; 6. a brush wheel; 7. holding the needle clip plate; 8. an oven; 9. a drive wheel; 10. a second clamping guide roller set; 11. and (7) a winding machine.
Detailed Description
The present invention is described in further detail below with reference to specific examples.
As shown in fig. 1, an overfeed heat setting process for a needled filter felt 2 comprises the following steps:
s1, unreeling the coiled needled filter felt 2 through an unreeling machine 1;
s2, clamping the needled filter felt 2 by a first clamping guide roller set 4 after passing through a tensioning and regulating device 3, wherein the first clamping guide roller set 4 is provided with a driving roller, and the first clamping guide roller set 4 can clamp the needled filter felt 2 for conveying;
s3, the needled filter felt 2 penetrates through a gap between the rubber wheel 5 and the brush wheel 6 and then is punctured and held by the rigid needles on the holding needle clip plate 7 from bottom to top, wherein the brush wheel 6 and the rubber wheel 5 are matched with each other to play a role in cloth pressing;
s4, adjusting the tension of the needled filter felt 2 on the tension adjusting and controlling device 3, and stopping tension adjustment after the breadth is contracted to the set requirement; generally, the width shrinkage ratio in step S4 is preferably 1 to 8%.
S5, arranging a plurality of holding needle clamp plates 7 on a circulating chain which longitudinally penetrates through the oven 8, driving the circulating chain to circularly run by a driving wheel 9, so that the needled filter felt 2 is continuously conveyed into the oven 8, conveying the needled filter felt 2 by the holding needle clamp plates 7 and penetrating through the oven 8 for hot setting, wherein the conveying speed of the first clamping guide roller group 4 is 1.2-1.3 times that of the holding needle clamp plates 7; the temperature for heat setting in the oven 8 in the step S5 is 130-290 ℃.
S6, winding the shaped needled filter felt 2 on a winding machine 11 after passing through a second clamping guide roller group 10.
In the setting process, the tensioning control device 3 comprises a rack, wherein a first guide roller 31, an upper left tension roller 32, a lower left tension roller 33, an upper right tension roller 35, a lower right tension roller 36 and a second guide roller 37 are arranged on the rack, a roller seat of the lower left tension roller 33 is slidably mounted in a vertical adjusting groove 34 of the rack, and the roller seat of the lower left tension roller 33 is driven by a tension adjusting power device to slide in the vertical adjusting groove 34; the tension adjusting power device can be driven by an oil cylinder or a motor, and the power of the tension adjusting power device is the conventional linear power at present. The central lines of the left upper tension roller 32 and the right upper tension roller 35 are positioned on the same horizontal plane, and the height from the ground is 280-330 cm. The height of the left lower tension roller 33 from the horizontal plane is adjusted within the range of 30-250 cm. The central lines of the first guide roller 31 and the right lower tension roller 36 are positioned on the same horizontal plane, and the distance from the horizontal plane is 80-100 cm.
The tension adjusting mode is as follows:
the needled filter felt 2 passes through the first guide roller 31, then sequentially passes through and winds the upper left tension roller 32, the lower left tension roller 33, the upper right tension roller 35, the lower right tension roller 36 and the second guide roller 37, the controller controls the tension adjusting power device to drive the roller seat of the lower left tension roller 33 to slide, the tension of the needled filter felt 2 is changed by changing the height of the roller seat, and the tension of the needled filter felt 2 is detected by the tension sensor 38 and fed back to the controller to realize closed-loop feedback. The tension sensor 38 is also a conventional structure at present, and is commercially available, and the tension sensor 38 can be used for visually detecting the tension of the needled filter felt 2, so that the tension sensor can be used as an adjusting basis of a tension adjusting power device.
Due to the adoption of the process and the structure, overfeeding heat setting can be performed on the needled filter felt 2, the working efficiency is high, the setting effect is good, the operation is convenient, and the filtering effect of the needled filter felt 2 is improved.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (7)
1. An overfeeding heat setting process for a needled filter felt is characterized by comprising the following steps of: the method comprises the following steps:
s1, unreeling the coiled needled filter felt through an unreeling machine;
s2, clamping the needled filter felt by a first clamping guide roller set after passing through a tensioning and regulating device;
s3, penetrating the needled filter felt through a gap between the rubber wheel and the brush wheel, and then puncturing and holding the needled filter felt by a rigid needle on the holding needle clip plate from bottom to top;
s4, adjusting the tension of the needled filter felt on the tension adjusting and controlling device, and stopping tension adjustment after the breadth is contracted to the set requirement;
s5, arranging a plurality of holding needle clamping plates on a circulating chain which longitudinally penetrates through an oven, conveying the needled filter felt by the holding needle clamping plates and penetrating the oven for hot setting, wherein the conveying speed of the first clamping guide roller group is 1.2-1.3 times that of the holding needle clamping plates;
and S6, winding the shaped needled filter felt on a winding machine for winding after passing through a second clamping guide roller set.
2. The overfeed heat setting process for needled filter felts of claim 1 wherein: the tensioning regulation and control device comprises a rack, wherein a first guide roller, an upper left tension roller, a lower left tension roller, an upper right tension roller, a lower right tension roller and a second guide roller are arranged on the rack, a roller seat of the lower left tension roller is slidably mounted in a vertical adjusting groove of the rack, and the roller seat of the lower left tension roller is driven by a tension adjusting power device to slide in the vertical adjusting groove; the tension adjusting mode is as follows:
the needled filter felt sequentially passes through the first guide roller and then sequentially passes through and winds the upper left tension roller, the lower left tension roller, the upper right tension roller, the lower right tension roller and the second guide roller, the controller controls the tension adjusting power device to drive the roller seat of the lower left tension roller to slide, the tension of the needled filter felt is changed by changing the height of the roller seat, and the tension sensor is used for detecting the tension of the needled filter felt and feeding the tension back to the controller to realize closed-loop feedback.
3. The overfeed heat setting process for needled filter felts of claim 2 wherein: the central lines of the left upper tension roller and the right upper tension roller are positioned on the same horizontal plane, and the height from the ground is 280-330 cm.
4. The overfeed heat setting process for needled filter felts of claim 3 wherein: the temperature for heat setting in the oven in the step S5 is 130-290 ℃.
5. The overfeed heat setting process for needled filter felts of claim 4 wherein: the width shrinkage rate in step S4 is 1-8%.
6. The overfeed heat setting process for needled filter felts of claim 5 wherein: the height of the left lower tension roller from the horizontal plane is adjusted within the range of 30-250 cm.
7. The overfeed heat setting process for needled filter felts of claim 6 wherein: the central lines of the first guide roller and the right lower tension roller are positioned on the same horizontal plane, and the distance from the central lines to the ground plane is 80-100 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497778.3A CN111645398A (en) | 2020-06-04 | 2020-06-04 | Overfeeding heat setting process for needled filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497778.3A CN111645398A (en) | 2020-06-04 | 2020-06-04 | Overfeeding heat setting process for needled filter felt |
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| Publication Number | Publication Date |
|---|---|
| CN111645398A true CN111645398A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010497778.3A Pending CN111645398A (en) | 2020-06-04 | 2020-06-04 | Overfeeding heat setting process for needled filter felt |
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| Country | Link |
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| CN (1) | CN111645398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960091A (en) * | 2022-06-30 | 2022-08-30 | 礼德滤材科技(苏州)有限责任公司 | Non-contact setting machine and method for spiral net heat setting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089546A (en) * | 1992-12-31 | 1994-07-20 | 金伯利-克拉克公司 | The non-woven material of improved anti-particle breakthrough |
| CN101914842A (en) * | 2010-08-22 | 2010-12-15 | 白城市工业滤材厂 | Punched filtering felt extruding and heat-setting machine |
| CN104153129A (en) * | 2014-08-29 | 2014-11-19 | 井孝安 | Non-woven melt direct spinning one-step method continuous production device and technology |
-
2020
- 2020-06-04 CN CN202010497778.3A patent/CN111645398A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089546A (en) * | 1992-12-31 | 1994-07-20 | 金伯利-克拉克公司 | The non-woven material of improved anti-particle breakthrough |
| CN101914842A (en) * | 2010-08-22 | 2010-12-15 | 白城市工业滤材厂 | Punched filtering felt extruding and heat-setting machine |
| CN104153129A (en) * | 2014-08-29 | 2014-11-19 | 井孝安 | Non-woven melt direct spinning one-step method continuous production device and technology |
Non-Patent Citations (3)
| Title |
|---|
| 康宁: "《电解铝生产》", 30 September 2015 * |
| 王菊生等: "《染整工艺原理 第2册》", 30 June 1990 * |
| 赵彦民: "《涤纶短纤维生产设备》", 31 May 1992 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960091A (en) * | 2022-06-30 | 2022-08-30 | 礼德滤材科技(苏州)有限责任公司 | Non-contact setting machine and method for spiral net heat setting |
| CN114960091B (en) * | 2022-06-30 | 2024-01-02 | 礼德滤材科技(苏州)有限责任公司 | Non-contact shaping machine and shaping method for heat shaping of spiral net |
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| PB01 | Publication | ||
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Application publication date: 20200911 |