CN110202727B - Far infrared heating device - Google Patents
Far infrared heating device Download PDFInfo
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- CN110202727B CN110202727B CN201910327157.8A CN201910327157A CN110202727B CN 110202727 B CN110202727 B CN 110202727B CN 201910327157 A CN201910327157 A CN 201910327157A CN 110202727 B CN110202727 B CN 110202727B
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- heating cover
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- thick sheet
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 153
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000002985 plastic film Substances 0.000 abstract description 4
- 229920006255 plastic film Polymers 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 68
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention provides a far infrared heating device, which relates to the field of plastic film production and comprises an upper heating cover, a lower heating cover, a sliding mounting mechanism and a pneumatic mechanism which are symmetrically arranged at two sides of a film thick sheet in a stretching area; the upper heating cover and the lower heating cover have the same structure and comprise a cover body, end clamps arranged at two ends of the semi-cylindrical structure in the length direction, an air hole plate and a plurality of infrared radiators which are arranged in the cover body in an adapting way, and a mounting bracket arranged at the outer side of the cover body and used for mounting a plurality of groups of air duct pipes and fans; one end of the air duct pipe is connected with the fan, and the other end of the air duct pipe penetrates through the mounting bracket and extends into the cover body; the sliding mounting mechanism is connected with each heating cover and comprises a linear sliding rail; the pneumatic mechanism is connected with the sliding installation mechanism and comprises an air cylinder; the invention improves the uniformity of longitudinal stretching of the film thick sheet by uniformly compensating the heat dissipation of the film thick sheet in the stretching area.
Description
Technical Field
The invention relates to the field of plastic film production, in particular to a far infrared heating device.
Background
The longitudinal stretcher is an important single machine of plastic film stretching production equipment, and mainly comprises a preheating zone, a stretching zone, a shaping zone and other process sections, wherein a plastic film thick sheet enters the stretching zone for longitudinal stretching after being preheated by the preheating zone, and then is cooled and heat-shaped by the shaping zone, so that a film with a certain thickness and uniformity is finally obtained. Because the film thick sheet is preheated by the preheating zone and reaches the stretching zone with a certain distance, and the stretching rollers of the stretching zone are also at a certain distance, the preheated film thick sheet reaches the stretching zone and then loses heat, so that the heating uniformity of the film thick sheet is destroyed, the problems of abnormal film thickness uniformity or insufficient stretching ratio and the like after stretching occur, the stretching performance of the film is influenced, and particularly, for thick films (the film thickness is larger than 100 mu m), the larger stretching ratio cannot be realized.
Most of the existing heating devices are radiator mirror reflection heating, but when the radiator mirror reflection heating is applied to a stretching process of a film preparation process, heating uniformity of the radiator mirror reflection in the transverse direction is difficult to ensure, and uneven heating of a stretched film can be caused, for example, an infrared dryer disclosed in patent CN201420084654.2 is matched with an infrared lamp tube, on one hand, infrared rays scattered by the infrared lamp tube are reflected to a working area through the reflecting cover, on the other hand, air heated by the infrared lamp tube and the reflecting cover is directly blown on a workpiece through a vent hole on the reflecting cover, although drying efficiency can be accelerated, and heating uniformity of the infrared dryer cannot be effectively ensured.
Disclosure of Invention
The invention aims to provide a far infrared heating device for a stretching region of a film longitudinal stretching machine on a film production line, which is used for uniformly compensating heat loss after a film thick sheet reaches the stretching region and improving the uniformity and the stretching ratio of the longitudinal stretching of the film thick sheet.
In order to achieve the above purpose, the present invention proposes the following technical scheme: a far infrared heating device comprises an upper heating cover, a lower heating cover and an adjusting mechanism for adjusting the distance between the upper heating cover and the lower heating cover; defining the thickness direction of a film thick sheet in a stretching area on a film production line as the up-down direction of a far infrared heating device; the upper heating cover and the lower heating cover have the same structure, are parallel and are oppositely arranged at the upper side and the lower side of the film thick sheet in the stretching region; the upper heating cover comprises a cover body, end clamps, an air hole plate, a plurality of infrared radiators, a mounting bracket, a plurality of groups of air duct pipes and a fan, wherein the cover body is arranged to be a semi-cylindrical structure with a length direction opening facing the thin film thick sheet, and the end clamps are arranged at two ends of the length direction of the semi-cylindrical structure and are used for sealing the opening of the end part of the length direction of the semi-cylindrical structure.
The air hole plate is adaptively arranged in the middle part of the cover body, which is perpendicular to the direction of the surface of the air hole plate, the end parts of the air hole plate in the length direction of the semi-cylindrical structure are respectively clamped and limited to the inner sides of the end clamps, the surface of the air hole plate is uniformly provided with a plurality of ventilation holes, and the surface of the air hole plate is parallel to the thick film sheet; and a cavity structure for static pressure is formed among the air hole plate, the end clamp and the cover body. The infrared radiator is arranged in the cover body and is arranged on one side of the air hole plate surface, which is close to the film thick sheet; the mounting bracket is connected to the semi-cylindrical structure and is arranged above the outer side of the semi-cylindrical structure, which is far away from the thick film sheet; the wind channel pipe sets up on the installing support, and wind channel pipe one end is connected in the fan, and the other end adaptation runs through in the bottom of installing support and semi-cylindrical structure and extends to the inside air hole board of cover body of semi-cylindrical structure's top.
According to the invention, wind blown out by the fan enters a cavity structure formed by the cover body, the air hole plate and the end clamps through the air duct pipe, after a certain static pressure effect, the wind can be uniformly blown out from small holes on the air hole plate, and then heated by the infrared radiator to form hot wind, the hot wind is blown to the surface of the film thick sheet, so that uniform heat compensation is carried out on the film thick sheet, and the uniformity and the stretching ratio of longitudinal stretching of the film thick sheet are improved.
Further, the adjusting mechanism comprises a sliding mounting mechanism and a pneumatic mechanism; the sliding mounting mechanism is arranged at the end part of the upper heating cover and/or the lower heating cover in the length direction, and at least one sliding mounting mechanism is respectively arranged at the end part of the upper heating cover and/or the lower heating cover in the length direction; the number of the pneumatic mechanisms is equal to that of the sliding mounting mechanisms, and the pneumatic mechanisms are mounted in one-to-one correspondence with the sliding mounting mechanisms; the sliding mounting mechanism comprises a connecting frame, a linear sliding rail and a mounting support; the mounting support is fixedly arranged on the wallboard of the stretching area of the film longitudinal stretching machine, the linear slide rail is arranged on the side surface of the mounting support, which is far away from the wallboard, and the linear slide rail is perpendicular to the film thick sheet; one end of the connecting frame is connected with the linear slide rail, has the degree of freedom of sliding on the linear slide rail, and the other end of the connecting frame is connected with the mounting bracket; the pneumatic mechanism is arranged on the mounting support and comprises an air cylinder arranged on the mounting support; the air cylinder is arranged on one side, far away from the film thick sheet, of the upper heating cover and the lower heating cover, and comprises an air cylinder telescopic rod which is connected to the connecting frame, and the telescopic direction of the air cylinder telescopic rod is parallel to the linear sliding rail;
The cylinder starts, and the telescopic rod thereof stretches out and draws back, drives the connecting frame, the mounting bracket and the upper heating cover or the lower heating cover connected with the connecting frame and the mounting bracket to slide back and forth on the linear slide rail, and further drives the upper heating cover and the lower heating cover to move, so that position adjustment is realized.
Furthermore, the sliding mounting mechanisms are symmetrically arranged on two sides perpendicular to the length direction of the upper heating cover and/or the lower heating cover, and two sliding mounting mechanisms and two pneumatic mechanisms are arranged at two ends of one heating cover, so that the position adjustment of the working position of the heating cover and the switching between the working position and the non-working position of the heating cover are realized.
Further, the pneumatic mechanism further comprises a limiting rod and a limiting nut sleeved on the limiting rod; the limiting rod is parallel to the linear sliding rail, one end of the limiting rod is connected to the connecting frame, and the other end of the limiting rod penetrates through the mounting support and is in clearance fit with the mounting support; the limiting rod has the freedom degree of passing along the telescopic direction of the telescopic rod of the air cylinder on the mounting support; the limiting rod is provided with external threads, and the limiting nut is arranged on the outer side of the limiting rod, which is far away from the mounting support of the connecting frame.
Further, a spherical connecting rod is arranged at the end part of the cylinder telescopic rod, which is far away from the cylinder, and the spherical connecting rod is connected to the connecting frame; the cylinder is provided with a travel switch electrically connected with the cylinder, the travel switch is used for controlling the travel of the cylinder, and the travel of the cylinder is adjusted by adjusting the position of the travel switch, so that the working positions of the upper heating cover and the lower heating cover are controlled.
Furthermore, the openings of the semi-cylindrical structure cover bodies of the upper heating cover and the lower heating cover are respectively provided with a protective net which completely blocks the openings, and the surfaces of the protective nets are parallel to the surfaces of the air hole plates, so that the infrared radiator is protected.
Furthermore, the semi-cylindrical structure cover bodies of the upper heating cover and the lower heating cover are semi-cylindrical structures, semi-square cylindrical structures or U-shaped structures, and are beneficial to guiding of the air port.
According to the technical scheme, the far infrared heating device provided by the technical scheme of the invention has the following beneficial effects:
The invention provides a far infrared heating device which comprises an upper heating cover, a lower heating cover, a sliding mounting mechanism and a pneumatic mechanism, wherein the sliding mounting mechanism and the pneumatic mechanism are used for adjusting the distance between the upper heating cover and the lower heating cover; the upper heating cover and the lower heating cover have the same structure, are parallel and are oppositely arranged at the upper side and the lower side of the film thick sheet in the stretching area; the upper heating cover comprises a cover body, end clamps arranged at two ends of the semi-cylindrical structure cover body in the length direction, an air hole plate and a plurality of infrared radiators which are arranged in the cover body in an adapting mode, and a mounting bracket arranged outside the cover body and used for mounting a plurality of groups of air duct pipes and fans; one end of the air duct pipe is connected with the fan, the other end of the air duct pipe penetrates through the mounting bracket and extends into the cover body, a plurality of ventilation holes are uniformly formed in the surface of the air hole plate, and the surface of the air hole plate is parallel to the thick film sheet; the sliding mounting mechanism is connected with the upper heating cover and/or the lower heating cover and comprises a linear slide rail; the pneumatic mechanism is connected with the sliding installation mechanism and comprises an air cylinder; through the telescopic action of the air cylinder, the position adjustment between the upper heating cover and/or the lower heating cover and the switching between the working position and the non-working position of each heating cover are realized by matching with the sliding rail, and the process requirement of stretching the film thick sheet is met.
According to the invention, wind blown out by the fan enters the cavity structure between the cover body and the wind hole plate through the wind channel pipe, after a certain static pressure effect, the wind is uniformly blown out through the small holes on the wind hole plate, and then heated by the infrared radiator to form uniformly distributed hot wind, the uniformly distributed hot wind is blown to the surface of the film thick sheet, and uniform heat compensation is carried out on the film thick sheet, so that the uniformity of longitudinal stretching of the film thick sheet can be improved, a larger stretching ratio can be further realized, and finally the film production quality is improved.
It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.
The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the invention, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a front view of a far infrared heating device of the present invention;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is a schematic view of a sectional partial structure of B-B in FIG. 1;
fig. 4 is a specific structural view of the adjusting mechanism of the present invention.
The specific meaning of each reference sign in the figure is:
1. Film slab, 2, upper heating mantle, 2-1, fan, 2-2, duct pipe, 2-3, mantle, 2-4, air hole plate, 2-5, insulating pipe clamp, 2-6, infrared radiator, 2-7, protective net, 2-8, end clamp, 2-9, screw, 2-10, -mounting bracket, 3, lower heating mantle, 4, sliding mounting mechanism, 4-1, mounting bracket, 4-2, linear slide rail, 4-3, pin shaft, 4-4, connecting frame, 5, pneumatic mechanism, 5-1, cylinder, 5-2, trunnion bracket, 5-3, limit lever, 5-4, spherical connecting rod, 5-5, limit nut, 5-6.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are set forth below, along with the accompanying drawings.
Aspects of the invention are described in this disclosure with reference to the drawings, in which are shown a number of illustrative embodiments. The embodiments of the present disclosure are not intended to be limiting of all aspects of the present invention. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, may be implemented in any of a number of ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the disclosure may be used alone or in any suitable combination with other aspects of the disclosure.
Based on the prior art, when the film thick sheet 1 passes through a longitudinal stretching machine, heat dissipation occurs after the preheated film thick sheet 1 reaches a stretching area, so that the heating uniformity of the film thick sheet 1 is destroyed, and the phenomenon that the film thick sheet 1 is stretched unevenly and is relatively small is caused; the invention aims to disclose a far infrared heating device for a stretching region of a film longitudinal stretching machine on a film production line, which is used for uniformly compensating heat loss after a film thick sheet 1 reaches the stretching region and improving the longitudinal stretching uniformity and quality of the film thick sheet 1.
The far infrared heating apparatus of the present invention will be described in further detail with reference to the embodiments shown in the drawings.
Referring to fig. 1 and 2, a far infrared heating apparatus, which is generally used in a stretching region of a film longitudinal stretching machine on a film production line, comprises an upper heating mantle 2 and a lower heating mantle 3, and an adjusting mechanism for adjusting a distance between the upper heating mantle 2 and the lower heating mantle 3; defining the thickness direction of a film thick sheet 1 in a stretching area on a film production line as the up-down direction of a far infrared heating device; the upper heating cover 2 and the lower heating cover 3 have the same structure, are arranged on the upper side and the lower side of the film thick sheet 1 in the stretching area in parallel and opposite directions, and are arranged between the fast stretching roller and the slow stretching roller in the stretching area; the upper heating cover 2 and the lower heating cover 3 are used for conveying uniformly distributed hot air to the film thick sheet 1 and compensating heat dissipation after the film thick sheet 1 reaches the stretching area.
Specifically referring to the drawings, the upper heating hood 2 and the lower heating hood 3 comprise hood bodies 2-3, end clamps 2-8, air hole plates 2-4, a plurality of infrared radiators 2-6, mounting brackets 2-10, a plurality of groups of air duct pipes 2-2 and fans 2-1; the cover body 2-3 is of a semi-cylindrical structure with an opening facing the film thick sheet 1 in the length direction, and the end clamps 2-8 are arranged at two ends of the cover body 2-3 of the semi-cylindrical structure in the length direction and are used for closing the opening of the end part of the cover body 2-3 of the semi-cylindrical structure in the length direction; in a specific implementation process, the semi-cylindrical cover bodies 2-3 of the upper heating cover 2 and the lower heating cover 3 can be arranged to be semi-cylindrical, semi-square cylindrical or U-shaped, the openings in the length direction of the semi-cylindrical cover bodies face the thick film sheet 1, the hot air blown by the upper heating cover 2 and the lower heating cover 3 is limited, and the semi-cylindrical cover bodies 2-3 are arranged to be U-shaped in the embodiment shown in the drawing.
The wind hole plate 2-4 is adaptively arranged in the cover body 2-3 and is generally arranged in the middle position of the cover body 2-3 perpendicular to the direction of the surface of the wind hole plate, the wind hole plate 2-4 is respectively connected with the end clamps 2-8 at two ends of the U-shaped cover body 2-3 in the length direction and is hermetically connected with the end clamps 2-8, and the wind hole plate 2-4, the end clamps 2-8 and the bottom surface of the U-shaped cover body 2-3 form a cavity structure; the surfaces of the air hole plates 2-4 are uniformly provided with a plurality of air holes, and the surfaces of the air hole plates 2-4 are parallel to the thick film sheet 1; the infrared radiator 2-6 is arranged in the cover body 2-3, and the infrared radiator 2-6 is arranged on one side of the surface of the air hole plate 2-4, which is close to the film thick sheet 1, by adopting the insulating pipe clamp 2-5; the mounting bracket 2-10 is connected to the cover body 2-3 of the U-shaped structure by adopting a screw rod 2-9, and is arranged above the outer side of the cover body 2-3 of the U-shaped structure, which is far away from the film thick sheet 1; the air duct pipe 2-2 is arranged on the mounting bracket 2-10, one end of the air duct pipe 2-2 is connected with the fan 2-1, and the other end of the air duct pipe 2-2 is adapted to penetrate through the bottom of the cover body 2-3 of the U-shaped structure and extends to the upper part of the air duct plate 2-4 in the cover body 2-3 of the U-shaped structure.
Compared with the comparison document mentioned in the prior art, the invention has the remarkable difference that the air flow blown by the fan 2-1 enters the cavity structure formed by the cover body 2-3, the end clamp 2-8 and the air orifice plate 2-4 of the U-shaped structure through the air duct pipe 2-2, the air flow is uniformly blown out through the vent holes on the air orifice plate 2-4 after a certain static pressure effect is carried out in the cavity structure, and then uniform hot air is formed after the air flow is heated by the infrared radiator 2-6 below the air orifice plate 2-4, and is blown to the surface of the film thick sheet 1, and uniform heat compensation is carried out on the film thick sheet 1 by adopting the uniform hot air, so that the uneven heating of the surface of the film thick sheet 1 can not be caused; in addition, the far infrared heating devices are arranged on the two sides of the thickness direction of the film thick sheet 1, and compared with the prior art, the longitudinal stretching uniformity of the film thick sheet 1 and the quality of the produced film can be improved more effectively.
In the embodiment shown in the drawings, in order to prevent the infrared radiator 2-6 from falling from the air hole plate 2-4 and prevent the film thick sheet 1 from breaking the film during stretching to damage the infrared radiator 2-6, the openings of the U-shaped cover bodies 2-3 of the upper heating cover 2 and the lower heating cover 3 are respectively provided with a protective net 2-7 which completely covers the openings and is made of metal materials, the protective net 2-7 is a net shape with larger mesh gaps and has no influence on ventilation, and the net surface of the protective net 2-7 is parallel to the air hole plate 2-4 and protects the infrared radiator 2-6.
With further reference to the embodiments shown in fig. 2 and 3, the number of infrared radiators 2-6 arranged inside the upper heating mantle 2 is 3, and the number of infrared radiators 2-6 arranged inside the lower heating mantle 3 is 2; a group of air duct pipes 2-2 and fans 2-1 are respectively arranged on the mounting brackets 2-10 of the upper heating cover 2 and the lower heating cover 3. In the specific implementation process, the specific arrangement positions and the number of the infrared radiators 2-6 in the upper heating hood 2 and the lower heating hood 3 and the power of the infrared radiators 2-6 are required to be set according to the actual production process and the structure of the stretching area, the number of the infrared radiators can be different, and the power can also be different; moreover, the number of the combination of the duct tube 2-2 and the blower 2-1 provided on the mounting brackets 2-10 of the upper and lower heating hoods 2 and 3 can be also configured according to actual design requirements.
As shown in connection with fig. 4, the adjustment mechanism comprises a slide mounting mechanism 4 and a pneumatic mechanism 5; the sliding mounting mechanism 4 is arranged at the end part of the upper heating cover 2 and/or the lower heating cover 3 in the length direction, and at least one sliding mounting mechanism 4 is respectively arranged at the end part of the upper heating cover 2 and/or the lower heating cover 3 in the length direction; the number of the pneumatic mechanisms 5 is equal to that of the sliding mounting mechanisms 4, and the pneumatic mechanisms are mounted in one-to-one correspondence with the sliding mounting mechanisms 4; in the embodiment shown in fig. 2, two sliding mounting mechanisms 4 are respectively arranged at two ends of the upper heating mantle 2 and/or the lower heating mantle 3 in the length direction, and the sliding mounting mechanisms 4 are symmetrically arranged at two sides perpendicular to the length direction of the upper heating mantle 2 and/or the lower heating mantle 3.
Specifically, the sliding mounting mechanism 4 comprises a connecting frame 4-4, a linear slide rail 4-2 and a mounting support 4-1; the mounting support 4-1 is fixedly arranged on a wallboard of a stretching area of the film longitudinal stretching machine, the linear slide rail 4-2 is arranged on the side surface of the mounting support 4-1 far away from the wallboard, and the linear slide rail 4-2 is perpendicular to the film thick sheet 1; one end of the connecting frame 4-4 is connected with the linear slide rail 4-2, the other end of the connecting frame is connected with the mounting bracket 2-10 of the upper heating cover 2 or the lower heating cover 3 by adopting the pin shaft 4-3, and the connecting frame 4-4 has the degree of freedom of sliding on the linear slide rail 4-2; the pneumatic mechanism 5 is arranged on the mounting support 4-1 and comprises an air cylinder 5-1 and an air cylinder telescopic rod 5-6; the air cylinder 5-1 is connected to the mounting support 4-1 by adopting the trunnion support 5-2, the air cylinder 5-1 is arranged on one side of the upper heating cover 2 and the lower heating cover 3, which is far away from the film thick sheet, the end part of the air cylinder telescopic rod 5-6, which is far away from the air cylinder 5-1, is provided with a spherical connecting rod 5-4, the spherical connecting rod 5-4 is connected to the connecting frame 4-4, and the telescopic direction of the air cylinder telescopic rod 5-6 is parallel to the linear sliding rail 4-2; when all the air cylinders 5-1 in the pneumatic mechanism 5 which are correspondingly arranged with the sliding installation mechanism 4 are started, the telescopic rods of the air cylinders stretch out and draw back to drive the connecting frame 4-4, the installation support 2-10 and the upper heating cover 2 or the lower heating cover 4 which are connected with the connecting frame to slide up and down along the linear sliding rail 4-2, so that the distance between the upper heating cover 2 or the lower heating cover 3 is adjusted, and the switching between the working position and the non-working position of the upper heating cover 2 or the lower heating cover 3 is realized.
In some embodiments, in order to prevent accidents caused by the failure and the decompression of the air cylinder 5-1 or the failure of a travel switch of the air cylinder, a limit rod 5-3 and a limit nut 5-5 sleeved on the limit rod 5-3 are also arranged in the pneumatic mechanism 5; the limiting rod 5-3 is parallel to the linear slide rail 4-2, one end of the limiting rod 5-3 is connected with the connecting frame 4-4, and the other end of the limiting rod penetrates through the mounting support 4-1 and is in clearance fit with the mounting support 4-1; the limiting rod 5-3 has the freedom degree of passing along the telescopic direction of the cylinder telescopic rod 5-6 on the mounting support 4-1; the limiting rod 5-3 is provided with external threads, and the limiting nut 5-5 is arranged on the outer side of the limiting rod 5-3, far away from the mounting support 4-1 of the connecting frame 4-4; the limiting position of the limiting rod 5-3 can be adjusted by adjusting the position of the limiting nut 5-5 on the limiting rod 5-3, and when the air cylinder 5-1 is suddenly out of pressure or a travel switch of the air cylinder fails, the limiting rod 5-3 can mechanically limit the air cylinder telescopic rod 5-6 to protect the upper heating cover 2 and the lower heating cover 3.
In addition, in order to accurately control the interval distance between the upper heating cover 2 and the lower heating cover 3 and the film thick sheet 1, the specific positions of the upper heating cover 2 and the lower heating cover 3 are controlled, a travel switch attached to the air cylinder 5-1 is arranged on the air cylinder 5-1, the travel switch adopts an electric drive travel switch with reed contacts, and the travel of the air cylinder 5-1 is adjusted by adjusting the positions of the travel switches; in the embodiment shown in the drawings, the distance between the upper heating mantle 2 and the lower heating mantle 3 and the film thick sheet 1 can be determined according to factors such as the process, the thickness and the environment of the film thick sheet 1 in actual production, and the upper heating mantle 2 and the lower heating mantle 3 are controlled to be switched between the working position and the non-working position by adjusting the working states of the sliding mounting mechanism 4 and the pneumatic mechanism 5.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.
Claims (6)
1. The far infrared heating device is characterized by comprising an upper heating cover, a lower heating cover and an adjusting mechanism for adjusting the distance between the upper heating cover and the lower heating cover;
defining the thickness direction of a film thick sheet in a stretching area on a film production line as the up-down direction of a far infrared heating device;
The upper heating cover and the lower heating cover have the same structure, are parallel and are oppositely arranged at the upper side and the lower side of the film thick sheet in the stretching region;
The upper heating cover comprises a cover body, an end clamp, an air hole plate, a plurality of infrared radiators, a mounting bracket, a plurality of groups of air duct pipes and a fan;
the cover body is of a semi-cylindrical structure with an opening facing the film thick sheet in the length direction, and end clamps are arranged at two ends of the semi-cylindrical structure in the length direction and used for closing the opening of the end part of the semi-cylindrical structure in the length direction;
The wind hole plate is arranged in the cover body in an adapting way, the wind hole plate is arranged in the middle part of the cover body, which is vertical to the direction of the surface of the wind hole plate, the wind hole plate is respectively clamped at the inner side of the end clamp at the end part of the semi-cylindrical structure in the length direction, and a cavity structure for providing static pressure is formed among the wind hole plate, the end clamp and the cover body; a plurality of ventilation holes are uniformly formed in the surface of the air hole plate, and the surface of the air hole plate is parallel to the thick film sheet; the infrared radiator is arranged in the cover body and is arranged on one side of the air hole plate surface, which is close to the film thick sheet;
the mounting bracket is connected to the semi-cylindrical structure and is arranged above the outer side of the semi-cylindrical structure, which is far away from the film thick sheet, in parallel; the air duct pipe is arranged on the mounting bracket, one end of the air duct pipe is connected with the fan, and the other end of the air duct pipe is adapted to penetrate through the bottom of the mounting bracket and the semi-cylindrical structure and extends to the upper part of an air duct plate in the cover body of the semi-cylindrical structure; the openings of the semi-cylindrical structures of the upper heating cover and the lower heating cover are respectively provided with a protective net which completely blocks the openings, and the net surfaces of the protective nets are parallel to the surface of the air hole plate;
The adjusting mechanism comprises a sliding mounting mechanism and a pneumatic mechanism; the sliding mounting mechanism is arranged at the end part of the upper heating cover and/or the lower heating cover in the length direction, and at least one sliding mounting mechanism is respectively arranged at the end part of the upper heating cover and/or the lower heating cover in the length direction; the number of the pneumatic mechanisms is equal to that of the sliding mounting mechanisms, and the pneumatic mechanisms are mounted in one-to-one correspondence with the sliding mounting mechanisms;
The sliding mounting mechanism comprises a connecting frame, a linear sliding rail and a mounting support; the mounting support is fixedly arranged on the wallboard of the stretching area of the film longitudinal stretching machine, the linear slide rail is arranged on the side surface of the mounting support, which is far away from the wallboard, and the linear slide rail is perpendicular to the film thick sheet; one end of the connecting frame is connected with the linear slide rail, the other end of the connecting frame is connected with one end of the mounting bracket of the upper heating cover or the lower heating cover, and the connecting frame has the degree of freedom of sliding on the linear slide rail;
The pneumatic mechanism is arranged on the mounting support and comprises an air cylinder and an air cylinder telescopic rod; the cylinder is arranged at one side of the upper heating cover and/or the lower heating cover, which is far away from the film thick sheet, the cylinder telescopic rod is connected to the connecting frame, and the telescopic direction of the cylinder telescopic rod is parallel to the linear sliding rail; the pneumatic mechanism further comprises a limiting rod and a limiting nut sleeved on the limiting rod; the limiting rod is parallel to the linear sliding rail, one end of the limiting rod is connected to the connecting frame, and the other end of the limiting rod penetrates through the mounting support and is in clearance fit with the mounting support; the limiting rod has the freedom degree of passing along the telescopic direction of the telescopic rod of the air cylinder on the mounting support; the limiting rod is provided with external threads, and the limiting nut is adaptively arranged on the outer side of the mounting support, far away from the connecting frame, of the limiting rod;
The cylinder starts, and the telescopic rod stretches out and draws back to drive the connecting frame, the mounting bracket and the upper heating cover or the lower heating cover connected with the connecting frame and the mounting bracket to slide up and down along the linear sliding rail in a reciprocating manner.
2. The far infrared heating apparatus according to claim 1, wherein the upper heating mantle and/or the lower heating mantle are provided with a sliding mounting mechanism at each of both ends in the longitudinal direction thereof, and the sliding mounting mechanisms are symmetrically provided at both sides perpendicular to the longitudinal direction of the upper heating mantle and/or the lower heating mantle.
3. The far infrared heating device according to claim 1, wherein a spherical connecting rod is arranged at the end of the cylinder telescopic rod far away from the cylinder, and the spherical connecting rod is connected to the connecting frame.
4. The far infrared heating apparatus of claim 1, wherein the cylinder is connected to the mounting bracket using a trunnion mount.
5. The far infrared heating apparatus according to claim 1, wherein the semi-cylindrical structures of the upper and lower heating hoods are semi-cylindrical structures, semi-square cylindrical structures, or U-shaped structures.
6. The far infrared heating apparatus according to claim 1, wherein a travel switch electrically connected to the cylinder is provided on the cylinder, the travel switch being for controlling a travel of the cylinder.
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| CN201910327157.8A CN110202727B (en) | 2019-04-23 | 2019-04-23 | Far infrared heating device |
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| CN201910327157.8A CN110202727B (en) | 2019-04-23 | 2019-04-23 | Far infrared heating device |
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| CN110202727A CN110202727A (en) | 2019-09-06 |
| CN110202727B true CN110202727B (en) | 2024-06-04 |
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| CN116061785B (en) * | 2023-04-04 | 2023-09-22 | 江苏九州电器有限公司 | Hot air heating type business seat heating ventilation elastic cushion |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH525077A (en) * | 1970-02-04 | 1972-07-15 | Kohjin Co | Thermoplastic tube production |
| CN203994319U (en) * | 2014-06-20 | 2014-12-10 | 桂林电子科技大学 | For the hot blast current equalizer of film stretching production line |
| CN204000447U (en) * | 2014-08-25 | 2014-12-10 | 重庆再升科技股份有限公司 | The infrared preheating device of glass fibre filter paper |
| CN106048754A (en) * | 2016-07-09 | 2016-10-26 | 江苏金斗重工有限公司 | Hot-air drawing box with uniform temperature and height |
| CN207028492U (en) * | 2017-08-15 | 2018-02-23 | 桐乡市小老板特种塑料制品有限公司 | The heat transfer machine of tubulose series of elements |
| CN207669782U (en) * | 2017-12-27 | 2018-07-31 | 安徽铜爱电子材料有限公司 | A kind of high performance thin film stretching-machine |
| CN210025992U (en) * | 2019-04-23 | 2020-02-07 | 桂林电器科学研究院有限公司 | Far infrared heating device |
-
2019
- 2019-04-23 CN CN201910327157.8A patent/CN110202727B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH525077A (en) * | 1970-02-04 | 1972-07-15 | Kohjin Co | Thermoplastic tube production |
| CN203994319U (en) * | 2014-06-20 | 2014-12-10 | 桂林电子科技大学 | For the hot blast current equalizer of film stretching production line |
| CN204000447U (en) * | 2014-08-25 | 2014-12-10 | 重庆再升科技股份有限公司 | The infrared preheating device of glass fibre filter paper |
| CN106048754A (en) * | 2016-07-09 | 2016-10-26 | 江苏金斗重工有限公司 | Hot-air drawing box with uniform temperature and height |
| CN207028492U (en) * | 2017-08-15 | 2018-02-23 | 桐乡市小老板特种塑料制品有限公司 | The heat transfer machine of tubulose series of elements |
| CN207669782U (en) * | 2017-12-27 | 2018-07-31 | 安徽铜爱电子材料有限公司 | A kind of high performance thin film stretching-machine |
| CN210025992U (en) * | 2019-04-23 | 2020-02-07 | 桂林电器科学研究院有限公司 | Far infrared heating device |
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