CN109848321B - Edge strip rolling production line for heat recovery core body and production method thereof - Google Patents
Edge strip rolling production line for heat recovery core body and production method thereof Download PDFInfo
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- CN109848321B CN109848321B CN201811652357.2A CN201811652357A CN109848321B CN 109848321 B CN109848321 B CN 109848321B CN 201811652357 A CN201811652357 A CN 201811652357A CN 109848321 B CN109848321 B CN 109848321B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
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Abstract
The invention provides a heat recovery core body edge strip rolling production line which comprises a strip steel uncoiler, a punching and corner cutting machine, a rolling machine and a corner cutting machine which are sequentially arranged; the punching and corner-cutting machine punches round holes and rectangular gaps on strip steel, the round holes are used as mounting holes at the end parts of the edge strips of the heat recovery core body, and the rectangular gaps are used as bending spaces; cold bending the punched and chamfered strip steel into an L-shaped section by a roll squeezer along the central axis of the strip steel by adopting progressive rolls; the bevel cutting machine cuts the L-shaped section from the adjacent edges of the rectangular notch, and simultaneously bends the two sides of the notch into the mounting end vertical to the L-shaped section. According to the invention, the strip steel is directly used for only cold-bending and pressing the edge strips of the heat recovery core body, the utilization rate of raw materials is high, the interchangeability and the universality of parts are high, for the heat recovery core bodies with different heights, the mould does not need to be replaced, only the feeding step parameters of the corner cutting machine and the corner cutting machine are needed to be adjusted, the lean production concept is met, and the product competitiveness is improved.
Description
Technical Field
The invention relates to a cold-bending profiling machine of a heat exchange device part, in particular to a heat recovery core edge strip rolling production line and a production method thereof.
Background
Exchange formula total heat exchange device also known as wind channel type fresh air ventilator, have compact structure and low power dissipation etc. advantage, be used for in the suspension type new trend system, its inside installation board-like heat recovery core carries out the heat energy exchange between the gas in dirty wind passageway and new trend passageway. The heat recovery core body is used as a core component of the heat recovery core body, has a cubic structure with uniform cross section, and is internally provided with crossed heat exchange channels.
The working principle of the heat recovery core is shown in figure 1, the core 1 is made of a moisture-permeable and air-impermeable wet and heat exchanger paper material, such as a fiber paper substrate and the like, as partition plates 2, wave-shaped plates 4 with a plurality of air inlets 3 are arranged between the partition plates 2, and the wave-shaped plates 4 are staggered and crossed between an indoor side I and an outdoor side II, so that an indoor exhaust channel E-E and an outdoor air inlet channel F-F which are not communicated with each other are formed in the core 1, and the two air flows are not mixed together. In the total heat exchange process, when the exhaust and intake air flows are guided by the fan to respectively exchange indoor and outdoor air through the heat recovery core body 1, the two air flows are subjected to heat transfer when passing through alternately due to temperature difference, and meanwhile, the partition plate 2 has permeability to water vapor, so that the moisture mass transfer effect is also achieved, the temperature and humidity exchange is performed between the exhaust and intake air flows, and the energy-saving and pollution discharge effects are realized.
The applicant has filed a square heat recovery core patent application with application number 2018222645873, using a heat recovery core in the form of a structure as shown in figures 2 and 3, for which a frame is designed consisting of end caps 5 and edge strips 6. Due to the increasing market demand for total heat exchangers in recent years, the manufacture of heat recovery cores is also required to be accelerated, and the heat recovery cores are produced in large-scale and mass production in an automatic mode. Based on the practical experience and professional knowledge which are rich for years of designing and manufacturing the products, the inventor actively researches and innovates by matching with the application of the theory. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a device and a corresponding method for automatically manufacturing heat-producing and recycling core edge strips.
The technical scheme is as follows: in order to solve the technical problem, the heat recovery core edge strip rolling production line provided by the invention comprises a strip steel uncoiler, a punching and corner cutting machine, a rolling machine and a corner cutting machine which are sequentially arranged;
the punching and corner-cutting machine punches round holes and rectangular gaps on strip steel, the round holes are used as mounting holes at the end parts of the edge strips of the heat recovery core body, and the rectangular gaps are used as bending spaces;
the roll squeezer adopts progressive rollers to cold bend the punched and angle-cut strip steel into an L-shaped material along the central axis of the strip steel;
the bevel cutting machine cuts the strip steel from the adjacent edges of the rectangular notch, and simultaneously bends the two sides of the notch to form an end part perpendicular to the L-shaped section.
Specifically, the punching and corner-cutting machine is provided with a rectangular punch for punching a rectangular notch and two circular punches for punching round holes, wherein the circular punches and the rectangular punches are linked, an air cylinder or a hydraulic cylinder is used for simultaneously cutting two round holes at one side of the central line of the strip steel in one reciprocating motion, and the other side of the central line is used for cutting the rectangular notch.
Specifically, the bevel cutting machine has a reciprocating punching die having a flat punch on both sides of which press plates are arranged.
Specifically, a servo feeding mechanism is arranged in front of the punching and corner cutting machine and connected with a control device of the bevel cutting machine.
Specifically, a plurality of groups of rollers are arranged on the roller press in sequence, and the end face angle of the rollers is transited from 180 degrees to 90 degrees along the rolling direction.
The invention also provides a method for manufacturing the heat recovery core edge strip by using the rolling production line, which is characterized in that the edge strip is manufactured by using a strip steel uncoiler, a punching and angle-cutting machine, a rolling press and a bevel cutting machine which are sequentially arranged, after the width w of the edge strip is selected, the strip steel with the width of 2w is taken as a raw material, the specification of a rectangular notch of the punching and angle-cutting machine is set as w (2 w + d), and d is the cutting amount of the bevel cutting machine.
Has the advantages that: the edge strips produced by the rolling production line of the invention are directly processed by cold bending with strip steel, the punching amount is very small, and the utilization rate of raw materials is extremely high. The structure of the novel air channel type fresh air ventilator is designed according to the practical requirements of the air channel type fresh air ventilator, the protective shell of the cage structure is provided for the heat recovery core body through the combination of the end cover, the protective shell is directly matched with the guide rail in the ventilator, the shell only needs materials of two specifications of the end cover and the edge strip, the interchangeability of parts is strong, the novel air channel type fresh air ventilator is suitable for rectangular heat recovery core bodies of different sizes, and the novel air channel type fresh air ventilator has. When the heat recovery cores with different heights need to be manufactured, the die does not need to be replaced, only the stepping parameters of the corner cutting machine and the bevel cutting machine need to be adjusted on the numerical control equipment, and the concept of lean production is met. The strake has simple structure, is convenient for make and assemble, has practiced thrift the raw and other materials, man-hour and the energy consumption that the core body needs of making, has promoted the competitiveness of product.
In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above. To make the objects, technical solutions and advantages of the present invention clearer, other technical problems that the present invention can solve, other technical features included in the technical solutions and advantages brought by the technical features will be more clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Drawings
FIG. 1 is a heat exchange schematic of an existing heat recovery core;
FIG. 2 is a schematic structural view of the present heat recovery core;
FIG. 3 is a schematic view of a heat recovery core assembled by edge banding in accordance with the present invention;
FIG. 4 is a schematic view of the edge strip of FIG. 3;
FIG. 5 is a schematic structural view of a heat recovery core edge strip rolling line according to an embodiment of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is an isometric view of FIG. 5;
FIG. 8 is a schematic view of the structure of the steel strip uncoiler of FIG. 5;
FIG. 9 is a schematic diagram of the punch and corner cutter of FIG. 5;
FIG. 10 is a diagram of the shape of the strip after being processed by the punch and corner cutter;
FIG. 11 is a schematic view of the roll press of FIG. 5;
FIG. 12 is a schematic view of the bevel cutter of FIG. 5;
in the figure: the device comprises a core body 1, a partition plate 2, an airflow inlet 3, a wave-shaped plate 4, an end cover 5, an edge strip 6, a strip steel uncoiling machine 7, a punching and corner-cutting machine 8, a rolling machine 9 and a bevel cutting machine 10. The steel strip 71, the rectangular notch 72, the mounting hole 73, the servo feeding mechanism 81, the reciprocating mechanism 82 and the die 83.
Detailed Description
Example (b):
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout, and wherein like reference numerals and letters refer to like items in the following drawings, and wherein, once an item is defined in a drawing, it need not be further defined and explained in subsequent drawings, and wherein various components that are not explicitly described may be implemented using conventional techniques.
The heat recovery core edge strip rolling line of the embodiment includes a strip steel uncoiler 7, a punching and corner cutting machine 8, a rolling press 9 and a bevel cutter 10 which are sequentially arranged as shown in fig. 5, 6 and 7.
As shown in fig. 8, the strip steel uncoiler 7 is used for installing a coiled strip steel and is driven by a servo motor to realize automatic feeding.
As shown in fig. 9, a servo feeding mechanism 81 is arranged at the front end of the punching and corner-cutting machine 8, a reciprocating mechanism 82 and a die 83 are arranged at the rear section, and the servo linkage with the punch is carried out for the edge strips with different lengths so as to control the manufacturing positions of the end parts of the edge strips on the strip steel. The dies 83 are integrally connected with punches for punching round holes and rectangular notches, and the reciprocating mechanism 82 uses an air cylinder or a hydraulic cylinder to simultaneously cut two round holes and a section of rectangular notch of the strip steel in one stroke.
As shown in fig. 10, circular mounting holes 73 and rectangular notches 72 are punched in a strip 71 of a punching and chamfering machine, the circular mounting holes 73 are used for riveting to four corners of an end cover of a heat recovery core, and the rectangular notches are used as bending spaces and cutting margins.
As shown in fig. 11, the roll press 9 uses progressive rolls to cold bend the strip steel into L-shaped sections along the central axis of the strip steel; the end surface of the upper roller of the roller press is gradually transited from 180 degrees to 90 degrees.
As shown in fig. 12, the bevel cutter 10 also employs a reciprocating bevel cutting integrated die including a flat punch at the center and press plates at both sides, and cuts the L-shaped material from the center on the adjacent sides of the rectangular notch while bending the circular hole portions at both sides of the notch to form end portions perpendicular to the L-shaped material. The two ends of the edge strip are cut from the L-section by two die cuts to form a heat recovery core edge strip. The width w of the edge strip is selected, the strip steel with the width of 2w is used, the specification of a rectangular notch of the punching and chamfering machine is w (2 w + d), and d is the cutting amount of the cutting die. The length of the rectangular notch is the sum of the width of two end parts and the cutting amount during cutting, the width is the width of a single side of the section bar, and the width of two sides of the L-shaped section bar is equal, namely the width of 1/2 strip steel.
The application of the recovered core body with the edge strips is shown in fig. 2 and fig. 3, a cage body is formed by an upper square end cover 5, a lower square end cover 5 and four edge strips 6, and the core body 1 with the square section is embedded and installed in the cage body. The periphery of the end cover 5 is provided with an edge which is formed by bending. The edge bar 6 shown in fig. 4 has an L-shaped cross section and a long bar-shaped structure, and has a bent mounting portion at an end thereof, and the mounting portion is fixedly connected to four corners of the end cover 5 by rivets. The installation mode of the heat recovery core in the fresh air system can adopt the technical scheme as disclosed in CN 106322630A, and the strake of the heat exchange core is matched with the structural member of the fresh air system.
The heat recovery core body can realize total heat recovery, has the characteristics of high recovery efficiency and the like, is widely applied to the field of fresh air and heat recovery of central air conditioners at present, and is characterized in that the product is formed by air flow in the x-axis direction and air flow in the y-axis direction of another layer, a layer of heat transfer and humidity transfer medium which is specially processed is arranged between the air flows flowing in two sides for isolation, so that the transfer of temperature and humidity can be realized, and the exchange of air in two sides is isolated.
In the description of the present invention, it should be noted that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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.
The present invention provides a novel structural form, concept and method for manufacturing a heat recovery core edge strip, and a method and a way for implementing the technical scheme are numerous, the above-mentioned embodiments are only exemplary and preferred embodiments, and should not be understood as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and variations to the above-mentioned embodiments without departing from the principle and spirit of the present invention.
Claims (4)
1. The utility model provides a heat recovery core strake roll-in production line which characterized in that: comprises a strip steel uncoiler, a punching and corner cutting machine, a roller press and a bevel cutting machine which are arranged in sequence;
the punching and corner-cutting machine punches round holes and rectangular gaps on strip steel, the round holes are used as mounting holes at the end parts of the edge strips of the heat recovery core body, and the rectangular gaps are used as bending spaces;
the roll squeezer adopts progressive rollers to cold bend the punched and angle-cut strip steel into an L-shaped material along the central axis of the strip steel;
the bevel cutting machine cuts the L-shaped section from the adjacent edges of the rectangular notch, and simultaneously bends the two sides of the notch into mounting ends perpendicular to the L-shaped section;
the punching and corner-cutting machine is provided with a rectangular punch for punching a rectangular notch and two circular punches for punching round holes, wherein the circular punches and the rectangular punches are linked, an air cylinder or a hydraulic cylinder is used for simultaneously cutting two round holes on one side of the central line of the strip steel in one reciprocating motion, and the rectangular notch is cut on the other side of the central line;
a plurality of groups of rollers are sequentially arranged on the roller press, and the end face angle of each roller is transited from 180 degrees to 90 degrees along the rolling direction;
after the width w of the edge strip is selected, the strip steel with the width of 2w is taken as a raw material, the specification of a rectangular notch of the punching and corner-cutting machine is set to w (2 w + d), and d is the cutting amount of the bevel cutting machine.
2. The heat recovery core bar rolling line of claim 1, wherein: the bevel cutting machine is provided with a reciprocating punching die which is provided with a plane punch head, and pressing plates are arranged on two sides of the plane punch head.
3. The heat recovery core bar rolling line of claim 1, wherein: and a servo feeding mechanism is arranged in front of the punching and corner-cutting machine and is connected with a control device of the corner-folding cutting machine.
4. The method of producing a heat recovery core bar rolling line of claim 1, wherein: the edge strip is manufactured by using a strip steel uncoiler, a punching and corner-cutting machine, a rolling press and a bevel cutting machine which are sequentially arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652357.2A CN109848321B (en) | 2018-12-31 | 2018-12-31 | Edge strip rolling production line for heat recovery core body and production method thereof |
| PCT/CN2019/130054 WO2020140879A1 (en) | 2018-12-31 | 2019-12-30 | Rolling processing line and production method for edge strip of heat recovery core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652357.2A CN109848321B (en) | 2018-12-31 | 2018-12-31 | Edge strip rolling production line for heat recovery core body and production method thereof |
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| Publication Number | Publication Date |
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| CN109848321A CN109848321A (en) | 2019-06-07 |
| CN109848321B true CN109848321B (en) | 2020-01-21 |
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| CN201811652357.2A Active CN109848321B (en) | 2018-12-31 | 2018-12-31 | Edge strip rolling production line for heat recovery core body and production method thereof |
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| WO (1) | WO2020140879A1 (en) |
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| CN109848321B (en) * | 2018-12-31 | 2020-01-21 | 南京远光环保科技有限公司 | Edge strip rolling production line for heat recovery core body and production method thereof |
| CN110653263B (en) * | 2019-10-14 | 2020-08-14 | 太仓北新建材有限公司 | Keel on-line punching continuous production equipment and method |
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| CN101422803A (en) * | 2007-10-31 | 2009-05-06 | 若林企业股份有限公司 | Metal frame manufacture method |
| KR101139232B1 (en) * | 2009-09-09 | 2012-04-20 | 주식회사 미륭산업 | Method for manufacturing all in one drainage trench using roll forming and the drainage trench |
| CN102989868B (en) * | 2012-11-12 | 2015-05-06 | 上海昊明机械有限公司 | Method for achieving process of on-line punching cold-roll-forming cutting production line |
| CN103861939A (en) * | 2014-03-12 | 2014-06-18 | 上海斐菱机电设备制造有限公司 | Elevator door frame profile punching and roll bending production line |
| CN104853530A (en) * | 2015-04-14 | 2015-08-19 | 中山市智牛电子有限公司 | Method for cutting and bending electronic elements in belt |
| KR20180075287A (en) * | 2016-12-26 | 2018-07-04 | 주식회사 성우하이텍 | Flexible roll forming method and front side member produced by the same |
| CN107009152A (en) * | 2017-05-28 | 2017-08-04 | 厦门耐立特包装科技有限公司 | A kind of full-automatic underframe, lid frame special processing equipment |
| CN207533769U (en) * | 2017-10-26 | 2018-06-26 | 东莞市劲豪精密五金有限公司 | A kind of multiple punch applied on mobile phone frame quickly surveys punch die |
| CN109821976B (en) * | 2018-12-31 | 2020-01-03 | 南京亘丰科技有限公司 | Automatic production equipment for heat recovery core edge strips |
| CN109848321B (en) * | 2018-12-31 | 2020-01-21 | 南京远光环保科技有限公司 | Edge strip rolling production line for heat recovery core body and production method thereof |
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| CN109848321A (en) | 2019-06-07 |
| WO2020140879A1 (en) | 2020-07-09 |
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