CN113459524B - PTFE fiber membrane and substrate low-temperature hot air compounding device - Google Patents
PTFE fiber membrane and substrate low-temperature hot air compounding device Download PDFInfo
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- CN113459524B CN113459524B CN202110786428.3A CN202110786428A CN113459524B CN 113459524 B CN113459524 B CN 113459524B CN 202110786428 A CN202110786428 A CN 202110786428A CN 113459524 B CN113459524 B CN 113459524B
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- hot air
- upper die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4807—Headwear
- B29L2031/4835—Masks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the technical field of mask production, in particular to a low-temperature hot air compounding device for a PTFE fiber film and a substrate, which comprises an upper die, a lower die and a cutting mechanism, wherein the upper die is arranged above the lower die, the cutting mechanism is arranged at one horizontal end of the upper die, a plurality of uniformly distributed composite compression posts are arranged on one side edge of the upper die close to the lower die and one side edge of the lower die close to the upper die, hot air through cavities are arranged in the upper die and the lower die, a plurality of hot air discharge openings are formed in the hot air through cavities, and the cutting mechanism comprises a mounting box, a fixing plate, a plurality of mutually meshed transmission special-toothed discs, a cutting blade and a driving motor; compared with the prior art, the invention can realize the low-temperature hot air compounding of the PTFE fiber membrane of the mask and the base material, and the mask during compounding is cut off from the coil material to complete the compounding and cutting of the mask, so that the operation of the working procedure is not needed, the production cost is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of mask production, in particular to a low-temperature hot air compounding device for a PTFE fiber membrane and a base material.
Background
The mask is an important means for isolating virus transmission, protecting susceptible people and realizing effective individual protection. At present, a nano mask is an efficient medical protective mask due to its efficient filtering performance, and is similar to a common medical mask, the nano antibacterial mask also comprises an outer layer, an intermediate layer, an inner layer, an ear hook, a nose clip and the like, and the nano mask is characterized in that the intermediate layer is made of a nano membrane with a smaller pore diameter of 100-200 nanometers, the nano mask is generally made of a PTFE material, a PTFE fiber membrane prepared by a unidirectional or bidirectional stretching method has a spider-web-type microporous structure on the surface, and has very complicated changes such as web-type communication, kong Xiangtao, pore channel bending and the like on a three-dimensional structure, so that the nano mask has an excellent surface filtering function.
At present, in the production of a nano mask, a PTFE fiber membrane and a substrate need to be thermally compounded, and then the PTFE fiber membrane and the substrate are conveyed to a cutting area and then cut by a cutting mechanism after compounding, so that the process is complex, the production cost is increased, the production efficiency is reduced, and meanwhile, when four sides of the mask are compounded at high temperature, a protection structure in a central area is absent, so that the PTFE fiber membrane and the substrate in the center of the mask are instantaneously heated and deformed, and even the filtration structure is changed, therefore, the good filtration effect of the finished mask cannot be guaranteed, and the product quality is reduced.
Disclosure of Invention
The invention aims to provide a low-temperature hot air compounding device for a PTFE fiber membrane and a base material, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hot-blast set composite of PTFE fibre membrane and substrate low temperature, includes mould, lower mould and cuts the mechanism, the top of lower mould is located to the last mould, the horizontal one end at last mould is installed to the mechanism of cutting, go up the mould be close to the one side edge of lower mould the one side edge that the lower mould is close to last mould all is equipped with a plurality of evenly distributed's compound compression leg, all be equipped with hot-blast logical chamber in last mould and the lower mould, hot-blast logical chamber is last to be equipped with the hot-blast row mouth of a plurality of, it includes mounting box, fixed plate, a plurality of intermeshing's transmission fluted disc, cuts blade and driving motor to cut the mechanism.
As a preferred technical scheme of the invention, hot air connecting pipes are arranged at one ends of the upper die and the lower die, which are far away from the cutting mechanism, and are communicated with the air outlet end of an external hot air source, and the hot air connecting pipes are communicated with the hot air through cavity.
As a preferable technical scheme of the invention, a plurality of hot air outlets and a plurality of composite compression columns are uniformly distributed at intervals.
According to a preferable technical scheme, the mounting box is fixedly connected with the upper die, the fixing plate is mounted inside the mounting box, the plurality of transmission different-tooth discs are rotatably mounted on the fixing plate through the transmission rod, and one side of the mounting box is provided with a knife outlet.
As a preferred technical scheme of the present invention, the cutting blade is fixedly mounted on a transmission rod of a transmission iso-toothed disc close to the knife-out edge, and the length of the cutting blade is greater than that of the transmission iso-toothed disc, and the cutting blade is provided with a mounting plate.
The driving motor is arranged on a transmission rod of a transmission iso-fluted disc far away from the knife outlet, and an output shaft of the driving motor is fixedly connected with the transmission rod.
The different fluted disc of transmission includes half first dish and half second dish, and half first dish and half second dish are semi-circular structure, the diameter of half first dish is less than the diameter of half second dish, the circular arc edge of half first dish and half second dish all is equipped with a plurality of evenly distributed's rodent, and is continuous mesh mutually through the rodent between the different fluted disc of transmission.
The upper die and the lower die are both provided with pressing sheets, and the surfaces of the pressing sheets are provided with heat insulation pads.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the low-temperature hot air compounding device for the PTFE fiber film and the base material, the cutting mechanism is arranged on the upper die, one end of the coiled material of the mask during compounding can be cut, the mask during compounding can be cut off from the coiled material, compounding and cutting of the mask are completed, operation of working procedures is not needed, production cost is reduced, and production efficiency is improved.
2. According to the low-temperature hot air compounding device for the PTFE fiber film and the substrate, the upper die and the lower die are provided with the compound compression post, the hot air through cavity, the hot air connecting pipe and the hot air exhaust port, so that low-temperature hot air compounding can be performed on the edge of the mask during compounding, the condition of instantaneous high-temperature deformation of the mask during high-temperature compounding caused by the fact that the high-temperature compound compression post is directly contacted with the compounding position of the mask is avoided, the heat insulation pad on the pressing sheet can be utilized to perform a good protection effect on the central area of the mask, the PTFE fiber film in the center of the mask and the substrate are prevented from being instantaneously heated and deformed, the good filtering effect of the finished mask is guaranteed, and the product quality is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom view of the upper die of the present invention;
fig. 3 is a side cross-sectional view of the cutting mechanism of the present invention;
fig. 4 is an inside side view of the cutting mechanism of the present invention;
fig. 5 is another side view of the interior of the cutting mechanism of the present invention;
FIG. 6 is a schematic structural view of a transmission anti-backlash disk of the present invention;
in the figure: 1. an upper die; 2. a lower die; 3. a cutting mechanism; 4. compounding a compression column; 5. a hot air through cavity; 6. a hot air pipe connection; 7. a hot air outlet; 8. discharging a knife edge; 9. mounting a box; 10. a fixing plate; 11. a transmission different-tooth disc; 12. a transmission rod; 13. cutting a blade; 14. mounting a sheet; 15. a drive motor; 16. a first half-disc; 17. a second half-disc; 18. a rodent; 19. a heat insulating pad; 20. and (5) tabletting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a PTFE fibre membrane and hot-blast set composite of substrate low temperature, including last mould 1, lower mould 2 and cutting mechanism 3, go up mould 1 and locate the top of lower mould 2, cut mechanism 3 and install the horizontal one end at last mould 1, go up the one side edge that mould 1 is close to lower mould 2, lower mould 2 is close to a side edge that mould 1 all is equipped with a plurality of evenly distributed's compound compression leg 4, it leads to chamber 5 all to be equipped with hot-blast logical in 1 and the lower mould 2 to go up mould, it is equipped with a plurality of hot-blast row of mouth 7 on the hot-blast logical chamber 5 to go up, it includes mounting box 9 to cut mechanism 3, fixed plate 10, a plurality of intermeshing's transmission fluted disc 11, cut blade 13 and driving motor 15, utilize compound compression leg 4, hot-blast logical chamber 5, hot-blast takeover 6 and hot-blast row mouth 7, can carry out microthermal hot-blast compound to the gauze mask edge when compounding, avoid the direct compound department of adopting high temperature of self to contact and cause the condition of gauze mask high temperature deformation in the twinkling of an eye when compounding.
Furthermore, one ends of the upper die 1 and the lower die 2, which are far away from the cutting mechanism 3, are respectively provided with a hot air connecting pipe 6, the hot air connecting pipes 6 are communicated with the air outlet end of an external hot air source, and the hot air connecting pipes 6 are communicated with a hot air through cavity 5.
Furthermore, even interval distribution between a plurality of hot-blast row of mouth 7 and a plurality of compound compression leg 4 can make hot-blast row of mouth 7 to the fine heating of adjacent compound compression leg 4 to make things convenient for the hot-blast compound work of low temperature.
Furthermore, the mounting box 9 is fixedly connected with the upper die 1, the fixing plate 10 is installed inside the mounting box 9, the plurality of transmission different-tooth discs 11 are all rotatably installed on the fixing plate 10 through the transmission rod 12, the knife outlet 8 is formed in one side of the mounting box 9, the knife outlet 8 can facilitate knife outlet and knife collection track movement of the cutting blade 13, and limitation of the mounting box 9 on the movement position of the cutting blade 13 is avoided.
Further, the cutting blade 13 is fixedly installed on a transmission rod 12 of a transmission different-tooth disk 11 close to the knife outlet 8, the length of the cutting blade 13 is larger than that of the transmission different-tooth disk 11, and an installation piece 14 is arranged on the cutting blade 13, so that the cutting blade 13 can be conveniently installed and detached.
The driving motor 15 is installed on a driving rod 12 of a driving fluted disc 11 far away from the knife-out edge 8, and an output shaft of the driving motor 15 is fixedly connected with the driving rod 12.
The transmission special toothed disc 11 comprises a first half disc 16 and a second half disc 17, the first half disc 16 and the second half disc 17 are both in a semicircular structure, the diameter of the first half disc 16 is smaller than that of the second half disc 17, a plurality of uniformly distributed tooth teeth 18 are arranged on the arc edges of the first half disc 16 and the second half disc 17, the connected transmission special toothed discs 11 are meshed with each other through the tooth teeth 18, a driving motor 15 is utilized to drive one transmission special toothed disc 11 far away from the knife-out edge 8 to rotate, the rotated transmission special toothed disc 11 drives the connected transmission special toothed disc 11 to synchronously rotate, and when the second half disc 17 of the first transmission special toothed disc 11 is connected with the first half disc 16 of the other transmission special toothed disc 11, the second half disc 17 of the rotation of the first half disc 16 of the minor diameter can be accelerated and driven by the second half disc 17 of the major diameter, thereby enabling the first transmission different-tooth disc 11 to accelerate the rotation processing of the other transmission different-tooth disc 11, and the other end of the transmission different-tooth disc 11 which rotates with higher speed can accelerate the tilting of the transmission different-tooth disc 11 connected with each other, the second half disc 17 of the transmission different-tooth disc 11 which is accelerated and tilted at the moment just contacts with the first half disc 16 of the transmission different-tooth disc 11 which is closest to the knife outlet 8, and the transmission different-tooth disc 11 which is closest to the knife outlet 8 can further accelerate the instantaneous acceleration, and the transmission different-tooth disc 11 which rotates with higher speed drives the cutting blade 13 to rotate at high speed, so that the cutting processing of the mask can be realized.
Go up all to be equipped with preforming 20 on mould 1 and the lower mould 2, and the surface of preforming 20 is equipped with heat insulating mattress 19, utilizes heat insulating mattress 19 on the preforming 20, can carry out fine guard action to gauze mask central zone, avoids the PTFE fibrous membrane at gauze mask center and substrate deformation of being heated in the twinkling of an eye, ensures the good filter effect of finished product gauze mask, promotes product quality.
The working principle is as follows:
when the cutting mechanism 3 is arranged on the upper die 1, the driving motor 15 is used for driving one driving special-toothed disc 11 far away from the knife-out opening 8 to rotate, the rotated driving special-toothed disc 11 drives the connected driving special-toothed disc 11 to synchronously rotate, when the second half disc 17 of the first driving special-toothed disc 11 is contacted with the first half disc 16 of the other driving special-toothed disc 11, the rotating second half disc 17 with a larger diameter can accelerate to drive the first half disc 16 with a smaller diameter to rotate, so that the first driving special-toothed disc 11 can instantaneously accelerate to rotate the other driving special-toothed disc 11, the other end of the accelerating rotating driving special-toothed disc 11 can accelerate to lift up the connected driving special-toothed disc 11, and the second half disc 17 of the accelerated lifting driving special-toothed disc 11 is just contacted with the first half disc 16 of the driving special-toothed disc 11 closest to the knife-out opening 8, in the same way, the instantaneous acceleration of the transmission different-tooth disc 11 of the nearest cutter outlet 8 can be further accelerated, the transmission different-tooth disc 11 which rotates at an accelerated speed drives the cutting blade 13 to rotate at a high speed, the cutting treatment of the mask can be realized, one end of a mask coil material during compounding can be cut, the mask during compounding can be cut from the coil material, the compounding and the cutting of the mask can be completed, the operation of the process is not needed, the production cost is reduced, the production efficiency is improved, the upper die 1 and the lower die 2 are provided with the compound compression post 4, the hot air through cavity 5, the hot air connecting pipe 6 and the hot air exhaust outlet 7, the low-temperature hot air compounding can be carried out on the edge of the mask during compounding, the instantaneous deformation of the mask during high-temperature compounding is avoided, the heat insulation pad 19 on the pressing sheet 20 can be utilized to carry out good protection effect on the central area of the mask, and the instantaneous deformation of the PTFE fiber film and the base material at the center of the mask when being heated, the good filtering effect of the finished product mask is guaranteed, and the product quality is improved.
It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The low-temperature hot air compounding device for the PTFE fiber film and the base material is characterized by comprising an upper die (1), a lower die (2) and a cutting mechanism (3), wherein the upper die (1) is arranged above the lower die (2), the cutting mechanism (3) is arranged at one horizontal end of the upper die (1), one side edge of the upper die (1) close to the lower die (2) and one side edge of the lower die (2) close to the upper die (1) are respectively provided with a plurality of uniformly distributed composite compression columns (4), hot air through cavities (5) are respectively arranged in the upper die (1) and the lower die (2), a plurality of hot air discharge ports (7) are formed in the hot air through cavities (5), and the cutting mechanism (3) comprises a mounting box (9), a fixing plate (10), a plurality of mutually meshed transmission different-toothed discs (11), cutting blades (13) and a driving motor (15);
the cutting blade (13) is fixedly arranged on a transmission rod (12) of a transmission different-tooth disk (11) close to the knife outlet (8), the length of the cutting blade (13) is greater than that of the transmission different-tooth disk (11), and a mounting piece (14) is arranged on the cutting blade (13);
the driving motor (15) is arranged on a transmission rod (12) of a transmission fluted disc (11) far away from the knife outlet (8), and an output shaft of the driving motor (15) is fixedly connected with the transmission rod (12);
the transmission heterofluted disc (11) comprises a first half disc (16) and a second half disc (17), the first half disc (16) and the second half disc (17) are of a semicircular structure, the diameter of the first half disc (16) is smaller than that of the second half disc (17), a plurality of uniformly distributed tooth teeth (18) are arranged on the arc edges of the first half disc (16) and the second half disc (17), and the transmission heterofluted disc (11) is meshed with the transmission heterofluted disc (11) through the tooth teeth (18).
2. The low-temperature hot air compounding device for the PTFE fiber film and the base material according to claim 1, wherein one end of each of the upper die (1) and the lower die (2) away from the cutting mechanism (3) is provided with a hot air connecting pipe (6), the hot air connecting pipes (6) are communicated with an air outlet end of an external hot air source, and the hot air connecting pipes (6) are communicated with the hot air through cavities (5).
3. The device for low-temperature hot air compounding of the PTFE fiber membrane and the base material according to claim 1, wherein a plurality of the hot air outlets (7) and a plurality of the compound compression columns (4) are uniformly spaced.
4. The low-temperature hot air compounding device for the PTFE fiber membrane and the base material is characterized in that the mounting box (9) is fixedly connected with the upper die (1), the fixing plate (10) is mounted inside the mounting box (9), the plurality of transmission fluted discs (11) are rotatably mounted on the fixing plate (10) through the transmission rod (12), and one side of the mounting box (9) is provided with an outlet knife edge (8).
5. The device for low-temperature hot air compounding of the PTFE fiber film and the base material as claimed in claim 4, wherein the upper die (1) and the lower die (2) are both provided with pressing sheets (20), and the surface of each pressing sheet (20) is provided with a heat insulation pad (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110786428.3A CN113459524B (en) | 2021-07-12 | 2021-07-12 | PTFE fiber membrane and substrate low-temperature hot air compounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110786428.3A CN113459524B (en) | 2021-07-12 | 2021-07-12 | PTFE fiber membrane and substrate low-temperature hot air compounding device |
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| CN113459524A CN113459524A (en) | 2021-10-01 |
| CN113459524B true CN113459524B (en) | 2023-01-13 |
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| CN108751514A (en) * | 2018-07-21 | 2018-11-06 | 芜湖迅创信息科技有限公司 | A kind of solar energy sea water desalination apparatus of changeable flow |
| CN110844820A (en) * | 2018-08-20 | 2020-02-28 | 蒙浩东 | Manual capstan winch structure with fast function of falling |
| CN212786593U (en) * | 2020-08-21 | 2021-03-26 | 大竹县全畅麻纺有限公司 | Seeding machine capable of uniformly spreading seeds |
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