CN111006122A - Strip-penetrating glue-injecting type heat-insulating section and production process thereof - Google Patents
Strip-penetrating glue-injecting type heat-insulating section and production process thereof Download PDFInfo
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- CN111006122A CN111006122A CN201911416671.5A CN201911416671A CN111006122A CN 111006122 A CN111006122 A CN 111006122A CN 201911416671 A CN201911416671 A CN 201911416671A CN 111006122 A CN111006122 A CN 111006122A
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- heat insulation
- section bar
- glue
- section
- strip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a strip-penetrating glue-injecting type heat-insulating section bar and a production process thereof, wherein the strip-penetrating glue-injecting type heat-insulating section bar comprises a first section bar and a second section bar; the first section bar and the second section bar are respectively provided with a heat insulation notch; at least two tooth openings are formed in the heat insulation notch; the tooth openings on the first section bar and the second section bar are symmetrically arranged; the size of the second cavity is determined by the distance between two adjacent heat insulation strips; the tooth opening is of a structure with a large internal space and a small opening space, and the part of the heat insulation strip penetrating into the tooth opening is matched with the structure of the tooth opening; the process method specifically comprises the following steps: preparing a section, slotting and threading, rolling, injecting glue and sawing; the invention carries out double heat insulation on the heat insulation section by the strip penetrating type and glue injection type processes, so that the room temperature transverse tensile and longitudinal shear resistant characteristic value of the heat insulation section is more than 60N/mm, while the room temperature transverse tensile and longitudinal shear resistant characteristic value of the common heat insulation section is 24N/mm, and the conformity performance of the common heat insulation section is far better than that of the common strip penetrating type or glue injection type heat insulation section.
Description
Technical Field
The invention relates to the technical field of aluminum alloy profile processing, in particular to a strip-penetrating glue-injecting type heat-insulating profile and a production process thereof.
Background
The traditional heat insulation section is mainly produced by adopting two process methods of strip penetration and glue injection, but the transverse tensile and longitudinal shear characteristic values and the composite performance of the heat insulation section produced by the method are not ideal, and the actual requirements cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem of providing a strip-penetrating glue-injecting type heat-insulating section and a production process thereof, wherein the strip-penetrating glue-injecting type heat-insulating section combines the advantages of strip-penetrating and glue-injecting processes.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a strip-penetrating glue-injecting type heat insulation section comprises a first section and a second section; the first section bar and the second section bar are respectively provided with a heat insulation notch; at least two tooth openings are formed in the heat insulation notch; the tooth openings on the first section bar and the second section bar are symmetrically arranged; the two symmetrical tooth openings are connected through a penetrated heat insulation strip; at least two heat insulation strips are arranged; the first section, the second section and the outer side of the heat insulation strip form a first cavity; the first section, the second section and the inner side of the heat insulation strip form a second cavity; mixed glue is injected into the first cavity; naturally solidifying and cooling the mixed glue to form polyurethane heat-insulating glue; the heat insulation strips are bonded with the polyurethane heat insulation glue to form two heat insulation layers together.
The size of the second cavity is determined by the distance between two adjacent heat insulation strips; the tooth mouth is the structure that inner space is big, and open space is little, the part that the heat insulating strip penetrated the tooth mouth matches with the structure of tooth mouth.
A production process of a strip-penetrating glue-injection type heat insulation section is characterized by comprising the following steps of: the method comprises the following steps:
s1: preparing a section; preparing a first section bar and a second section bar which are subjected to surface treatment, and checking the bending degree, the twist degree, the surface quality and the dimensional tolerance of the first section bar and the second section bar to ensure that the first section bar and the second section bar meet the standard requirements;
s2: punching teeth and penetrating strips; a tooth opening is formed at the heat insulation groove openings of the first section bar and the second section bar by using a tooth opening cutter, and then a heat insulation strip is penetrated into the tooth openings of the first section bar and the second section bar which are symmetrical;
s3: rolling; rolling and fastening the heat insulation notch and the tooth mouth by using a rolling disc, and fastening the heat insulation strip in the heat insulation notch;
s4: injecting glue; pouring mixed glue into the first cavity, bonding the mixed glue on the heat insulation strip, forming polyurethane heat insulation glue after the mixed glue is naturally solidified and cooled, and forming two firm heat insulation layers with the heat insulation strip;
s5: sawing; and sawing the polyurethane heat-insulating glue higher than the outer sides of the first section bar and the second section bar after the mixed glue is cooled, and finishing the preparation of the strip-penetrating glue-injecting type heat-insulating section bar.
The strip is worn in the gulleting specifically includes:
s21: the first section and the second section are sent into a first tooth punching machine for positioning, a lower supporting roller and front double-side rollers are adjusted, and the position states of the lower supporting roller and the front double-side rollers are recorded by a position display;
s22: moving the slotting cutter according to the position of the heat insulation notch, wherein the slotting cutter can be lifted up and down and moved left and right to align the slotting cutter with the heat insulation notch to be slotted, slotting the slot on the heat insulation notch by the slotting cutter, and recording the position state of the slotting cutter by a position display; completing the tooth punching of the first section bar and the second section bar;
s23: adjusting a positioning block of the heat insulation strip, pressing a handle, communicating an air inlet and an air outlet, reliably clamping and positioning, and fixing the heat insulation strip;
s24: the heat insulation strips enter the tooth openings of the first section and the second section at a low speed by utilizing a strip penetrating mechanism, the tooth punching quality and the strip penetrating state are checked, and after the tooth punching quality and the strip penetrating state are adjusted, all the locking handles are fixed to complete the strip penetrating work of one heat insulation strip;
s25: feeding the first section and the second section after the first-time slotting and bar penetrating into a second slotting machine, completing the slotting work by the second slotting machine according to the steps, fixing the sections and the heat insulation bars processed by the first slotting machine when the other heat insulation bar is penetrated, and arranging positioning devices on a rear auxiliary frame to adjust the positioning devices to perform the second-time slotting work; the heat insulation strips must be ensured to smoothly and tidily penetrate the first section bar and the second section bar, and the two heat insulation strips are prevented from being uneven;
s26: controlling the tooth punching quality; the tooth punching quality is greatly related to the adjustment of the tooth punching cutter, the state of a tooth punching opening is noticed at any time, a proper tooth punching speed is selected, the tooth punching is in a good state, the shearing value after rolling pressure is met, and whether the cutter is replaced or not is determined if necessary.
The rolling specifically comprises:
s31: selecting an adjusting gasket according to the section size of the heat insulation section, adjusting the height between each group of rolling wheels, adjusting according to the heat insulation strips, and recording the width position change state by a position display;
s32: adjusting the heights of the roller presses, the fixed auxiliary frames and the movable auxiliary frames to enable the heat insulation sectional materials to work on the same horizontal line;
s33: adjusting an upper vertical lifting auxiliary roller of the roller press, mainly adjusting a lower auxiliary roller, ensuring that the distances between three groups of lower supporting rollers and the lower roller press are consistent, and adjusting the upper auxiliary roller when the heat insulation section enters the roller press;
s34: adjusting and determining the width of each group of rolling wheels;
s35: putting the heat insulation section bar which is penetrated with the heat insulation strip into a roller press for pressure test, and adjusting an upper auxiliary roller which vertically ascends and descends from slow speed to fast speed; the problems of slipping, bending, twisting, inclination, warping and the like of the heat insulation section bar during feeding are avoided;
s36: adjusting pressing force and pre-pressing force according to an HTS-1 force tester;
s37: adjusting a straightening roller set; can be finely adjusted up and down and back and forth, has small displacement and attention to adjustment
S38: after a heat insulation section is rolled in a test mode, the heat insulation section is put on a test platform, whether the heat insulation section is bent or twisted and deformed or not is checked, whether a non-pressure crack exists or not is checked, a sample with the length of 100mm is cut out to be subjected to a shearing force test, after the heat insulation section is qualified, each adjusting key can be locked to continue working, relevant parameters are recorded, and if the heat insulation section is not qualified, adjustment is carried out according to conditions.
The adjusting and determining the width of each group of rolling wheels specifically comprises:
s341: after the first group of rolling discs contact the heat insulation section, the rolling discs are pre-stretched for 1.5 circles, the trial rolling ends are withdrawn when the length is 200mm, and the heat insulation section is pushed and pulled longitudinally by hands until the first section and the second section are not moved;
s34: 2: after the second group of rolling discs contact the heat insulation section, the rolling discs are pre-stretched for 3 circles, the pressure displayed by the pressure discs is 2500-6000N, and the actual pressure value is subject to the qualification of the shear strength of the heat insulation section;
s343: and the third group of rolling discs are pre-stretched for 2 circles after contacting the heat insulation section bars.
The components of the mixed glue comprise isocyanate and polyol; the ratio of the isocyanate to the polyol is 0.85-0.9: 1.
The glue injection specifically comprises:
s41: checking the quantity of isocyanate and polyol, and controlling the ratio of the isocyanate to the polyol to be 0.9: 1; controlling the temperature of isocyanate and polyol to be 20-30 ℃;
s42: adjusting the position of the heat insulation section bar, fixing the heat insulation section bar, adjusting the glue injection nozzle to enable the glue injection nozzle to be matched with the first cavity of the heat insulation section bar, and preparing glue injection;
s43: checking the glue injection condition; adjusting a manual handle to control the glue injection speed, checking the saturation of the first cavity,
checking whether the mixed glue in the first cavity has a bubble phenomenon; the appearance of the selected mixed glue after curing is black and semitransparent foaming-free solid, and heat-insulating glue with short curing time is selected as far as possible;
s44: checking the adhesion degree of the mixed glue and the heat insulation section; during pouring, the temperature of the heat insulation section bar is kept to be higher than 18 ℃, and the temperature of the mixed glue is ensured to be controlled to be 25 +/-5 ℃ before and during pouring;
s45: after the mixed glue is cooled to form polyurethane heat-insulating glue, testing the hardness of the polyurethane heat-insulating glue, wherein the Brinell hardness of the polyurethane heat-insulating glue is 65-85 HB, and checking whether the color of the polyurethane heat-insulating glue is black and bright;
s46: sealing the first cavities at two sides of the heat-insulating section bar with adhesive tapes, and placing the section bar in different types and in order
And (5) the consistency is achieved.
The sawing material specifically comprises:
s51: after the heat insulation section bar subjected to glue injection is cooled for 30 minutes, performing saw cutting;
s52: adjusting the distance of the heat insulation section bar, and fixing the heat insulation section bar;
s53: adjusting the position of the saw blade; the position of the saw blade is adjusted on the central line of the first cavity, the position of the saw blade is slowly adjusted up and down, and the sawn material cannot be too shallow or too deep;
s54: and when the sawing is finished, all the valve switches are closed, and the power supply is cut off.
The glue injection process control method also comprises the following steps: cleaning the glue injection nozzle to prevent the glue injection nozzle from being blocked; the positions and angles of the glue injection nozzle and the first cavity are continuously adjusted, so that the included angle between the glue injection nozzle and the advancing direction of the surface of the heat insulation section bar is kept between 75 degrees and 80 degrees, and the first cavity is completely infiltrated by mixed glue.
The first section bar and the second section bar can be simultaneously notched and then simultaneously penetrated with strips, or the first section bar is notched and penetrated with strips, and then the second section bar is notched and the first section bar and the second section bar are combined to penetrate the strips.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: the invention carries out double heat insulation on the heat insulation section by the strip penetrating type and glue injection type processes, so that the room temperature transverse tensile and longitudinal shearing characteristic value of the heat insulation section is more than 60N/mm, while the room temperature transverse tensile and longitudinal shearing characteristic value of the common strip penetrating type or glue injection type heat insulation section is 24N/mm, and the conformity performance of the common strip penetrating type or glue injection type heat insulation section is far better than that of the common strip penetrating type or glue injection type heat insulation section.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a process flow diagram of a first embodiment of the invention.
Detailed Description
A strip-penetrating glue-injecting type heat insulation section comprises a first section 1 and a second section 2; the first section bar 1 and the second section bar 2 are respectively provided with a heat insulation notch 3; two tooth openings 4 are arranged on the heat insulation notch 3; the tooth openings 4 on the first section bar 1 and the tooth openings 4 on the second section bar 2 are symmetrically arranged; the two symmetrical tooth openings 4 are connected through a penetrated heat insulation strip 5; two heat insulation strips 5 are arranged; a first cavity 6 is formed at the outer sides of the first section 1, the second section 2 and the heat insulation strip 5; a second cavity 7 is formed by the first section 1, the second section 2 and the inner side of the heat insulation strip 5; mixed glue is injected into the first cavity 6; naturally solidifying and cooling the mixed glue to form polyurethane heat-insulating glue; the heat insulation strips 5 are bonded with the polyurethane heat insulation glue to form two heat insulation layers together.
The size of the second cavity 7 is determined by the distance between two adjacent heat insulation strips 5; the tooth mouth 4 is a structure with large internal space and small opening space, and the part of the heat insulation strip 5 penetrating into the tooth mouth 4 is matched with the structure of the tooth mouth 4.
A production process of a strip-penetrating glue-injection type heat insulation section is characterized by comprising the following steps of: the method comprises the following steps:
s1: preparing a section; preparing a first section bar 1 and a second section bar 2 which are subjected to surface treatment, and checking the bending degree, the torsion degree, the surface quality and the dimensional tolerance of the first section bar 1 and the second section bar 2 to ensure that the standard requirements are met;
s2: punching teeth and penetrating strips; a tooth opening 4 is formed in the heat insulation groove opening 3 of the first section bar 1 and the second section bar 2 by a tooth opening cutter, and then a heat insulation strip 5 penetrates into the symmetrical tooth opening 4 of the first section bar 1 and the second section bar 2;
s3: rolling; rolling and fastening the heat insulation notch 3 and the tooth mouth 4 by using a rolling disc, and fastening the heat insulation strip 5 in the heat insulation notch 3;
s4: injecting glue; pouring mixed glue into the first cavity 6, bonding the mixed glue on the heat insulation strip 5, naturally solidifying and cooling the mixed glue to form polyurethane heat insulation glue, and forming two firm heat insulation layers together with the heat insulation strip 5;
s5: sawing; and after the mixed glue is cooled, sawing off the polyurethane heat insulation glue higher than the outer sides of the first section bar 1 and the second section bar 2, and finishing the preparation of the strip-penetrating glue-injection type heat insulation section bar.
The strip is worn in the gulleting specifically includes:
s21: the first section bar 1 and the second section bar 2 are sent into a first tooth punching machine for positioning, a lower supporting roller and front double-side rollers are adjusted, and the position states of the lower supporting roller and the front double-side rollers are recorded by a position display;
s22: moving the slotting cutter according to the position of the heat insulation notch 3, wherein the slotting cutter can be lifted up and down and moved left and right to align the slotting cutter with the heat insulation notch 3 to be slotted, slotting a tooth opening 4 on the heat insulation notch 3 by the slotting cutter, and recording the position state of the slotting cutter by a position display; completing the tooth punching of the first section bar 1 and the second section bar 2;
s23: adjusting a positioning block of the heat insulation strip 5, pressing a handle, communicating an air inlet and an air outlet, reliably clamping and positioning, and fixing the heat insulation strip 5;
s24: the heat insulation strip 5 enters the symmetrical tooth openings 4 of the first section bar 1 and the second section bar 2 at a low speed by using a strip penetrating mechanism, the tooth punching quality and the strip penetrating state are checked, and after the adjustment is finished, all locking handles are fixed to complete the strip penetrating work of one heat insulation strip 5;
s25: feeding the first section bar 1 and the second section bar 2 which are subjected to primary slotting and bar penetrating into a second slotting machine, completing slotting work according to the steps in the second slotting machine, fixing the section bars processed by the first slotting machine and the heat insulation bars 5 when another heat insulation bar 5 is penetrated, and arranging positioning devices on a rear auxiliary frame to adjust the positioning devices so as to perform secondary bar penetrating work; the heat insulation strips 5 can smoothly and tidily penetrate through the first section bar 1 and the second section bar 2, so that the two heat insulation strips 5 are prevented from being uneven;
s26: controlling the tooth punching quality; the tooth punching quality is greatly related to the adjustment of the tooth punching cutter, the state of the tooth punching opening 4 is noticed at any time, a proper tooth punching speed is selected, the tooth punching is in a good state, the shearing value after rolling pressure is met, and whether the cutter is replaced or not is determined if necessary.
The rolling specifically comprises:
s31: selecting an adjusting gasket according to the section size of the heat insulation section, adjusting the height between each group of rolling wheels, adjusting according to the heat insulation strips 5, and recording the width position change state by a position display;
s32: adjusting the heights of the roller presses, the fixed auxiliary frames and the movable auxiliary frames to enable the heat insulation sectional materials to work on the same horizontal line;
s33: adjusting an upper vertical lifting auxiliary roller of the roller press, mainly adjusting a lower auxiliary roller, ensuring that the distances between three groups of lower supporting rollers and the lower roller press are consistent, and adjusting the upper auxiliary roller when the heat insulation section enters the roller press;
s34: adjusting and determining the width of each group of rolling wheels;
s35: the heat insulation section bar which is penetrated with the heat insulation strip 5 enters a rolling machine for pressure test, and the rolling machine is driven from slow speed to fast speed, and an upper auxiliary roller which is vertically lifted is adjusted; the problems of slipping, bending, twisting, inclination, warping and the like of the heat insulation section bar during feeding are avoided;
s36: adjusting pressing force and pre-pressing force according to an HTS-1 force tester;
s37: adjusting a straightening roller set; can be finely adjusted up and down and back and forth, has small displacement and attention to adjustment
S38: after a heat insulation section is rolled in a test mode, the heat insulation section is put on a test platform, whether the heat insulation section is bent or twisted and deformed or not is checked, whether a non-pressure crack exists or not is checked, a sample with the length of 100mm is cut out to be subjected to a shearing force test, after the heat insulation section is qualified, each adjusting key can be locked to continue working, relevant parameters are recorded, and if the heat insulation section is not qualified, adjustment is carried out according to conditions.
The adjusting and determining the width of each group of rolling wheels specifically comprises:
s341: after the first group of rolling discs contact the heat insulation section, the rolling discs are pre-stretched for 1.5 circles, the trial rolling ends are withdrawn at a length of 200mm, and the heat insulation section is pushed and pulled longitudinally by hands until the first section 1 and the second section 2 are not moved;
s34: 2: after the second group of rolling discs contact the heat insulation section, the rolling discs are pre-stretched for 3 circles, the pressure displayed by the pressure discs is 2500-6000N, and the actual pressure value is subject to the qualification of the shear strength of the heat insulation section;
s343: and the third group of rolling discs are pre-stretched for 2 circles after contacting the heat insulation section bars.
The components of the mixed glue comprise isocyanate and polyol; the ratio of the isocyanate to the polyol is 0.85-0.9: 1.
The glue injection specifically comprises:
s41: checking the quantity of isocyanate and polyol, and controlling the ratio of the isocyanate to the polyol to be 0.9: 1; controlling the temperature of isocyanate and polyol to be 20-30 ℃;
s42: adjusting the position of the heat insulation section bar, fixing the heat insulation section bar, adjusting the glue injection nozzle to enable the glue injection nozzle to be matched with the first cavity 6 of the heat insulation section bar, and preparing glue injection;
s43: checking the glue injection condition; the manual handle is adjusted to control the glue injection speed, the saturation of the first cavity 6 is checked,
checking whether the mixed glue in the first cavity 6 has a bubble phenomenon; the appearance of the selected mixed glue after curing is black and semitransparent foaming-free solid, and heat-insulating glue with short curing time is selected as far as possible;
s44: checking the adhesion degree of the mixed glue and the heat insulation section; during pouring, the temperature of the heat insulation section bar is kept to be higher than 18 ℃, and the temperature of the mixed glue is ensured to be controlled to be 25 +/-5 ℃ before and during pouring;
s45: after the mixed glue is cooled to form polyurethane heat-insulating glue, testing the hardness of the polyurethane heat-insulating glue, wherein the Brinell hardness of the polyurethane heat-insulating glue is 65-85 HB, and checking whether the color of the polyurethane heat-insulating glue is black and bright;
s46: sealing the first cavities 6 at two sides of the heat-insulating section bar with adhesive tapes, placing the section bar in a number-divided manner, and placing the section bar in a whole manner
Are uniform.
The sawing material specifically comprises:
s51: after the heat insulation section bar subjected to glue injection is cooled for 30 minutes, performing saw cutting;
s52: adjusting the distance of the heat insulation section bar, and fixing the heat insulation section bar;
s53: adjusting the position of the saw blade; the position of the saw blade is adjusted on the central line of the first cavity 6, the position of the saw blade is slowly adjusted up and down, and the sawn material cannot be too shallow or too deep;
s54: and when the sawing is finished, all the valve switches are closed, and the power supply is cut off.
The glue injection process control method also comprises the following steps: cleaning the glue injection nozzle to prevent the glue injection nozzle from being blocked; the positions and angles of the glue injection nozzle and the first cavity 6 are continuously adjusted, so that the included angle between the glue injection nozzle and the advancing direction of the surface of the heat insulation section bar is kept between 75 degrees and 80 degrees, and the first cavity 6 is completely infiltrated by mixed glue.
The first section bar 1 and the second section bar 2 can be simultaneously provided with the tooth openings 4 and then simultaneously penetrate the strips, or the first section bar 1 is firstly provided with the tooth openings 4 and penetrates the strips, and then the second section bar 2 is provided with the tooth openings 4 and the first section bar 1 and the second section bar 2 are combined to penetrate the strips.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: the invention carries out double heat insulation on the heat insulation section by the strip penetrating type and glue injection type processes, so that the room temperature transverse tensile and longitudinal shearing characteristic value of the heat insulation section is more than 60N/mm, while the room temperature transverse tensile and longitudinal shearing characteristic value of the common strip penetrating type or glue injection type heat insulation section is 24N/mm, and the conformity performance of the common strip penetrating type or glue injection type heat insulation section is far better than that of the common strip penetrating type or glue injection type heat insulation section.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a wear thermal-insulated section bar of strip injecting glue formula which characterized in that: comprises a first section bar and a second section bar; the first section bar and the second section bar are respectively provided with a heat insulation notch; at least two tooth openings are formed in the heat insulation notch; the tooth openings on the first section bar and the second section bar are symmetrically arranged; the two symmetrical tooth openings are connected through a penetrated heat insulation strip; at least two heat insulation strips are arranged; the first section, the second section and the outer side of the heat insulation strip form a first cavity; the first section, the second section and the inner side of the heat insulation strip form a second cavity; mixed glue is injected into the first cavity; naturally solidifying and cooling the mixed glue to form polyurethane heat-insulating glue; the heat insulation strips are bonded with the polyurethane heat insulation glue to form two heat insulation layers together.
2. The penetrating strip glue injection type heat insulation profile as claimed in claim 1, wherein: the size of the second cavity is determined by the distance between two adjacent heat insulation strips; the tooth mouth is the structure that inner space is big, and open space is little, the part that the heat insulating strip penetrated the tooth mouth matches with the structure of tooth mouth.
3. A production process of a strip-penetrating glue-injection type heat insulation section is characterized by comprising the following steps of: the method comprises the following steps:
s1: preparing a section; preparing a first section bar and a second section bar which are subjected to surface treatment, and checking the bending degree, the twist degree, the surface quality and the dimensional tolerance of the first section bar and the second section bar to ensure that the first section bar and the second section bar meet the standard requirements;
s2: punching teeth and penetrating strips; a tooth opening is formed at the heat insulation groove openings of the first section bar and the second section bar by using a tooth opening cutter, and then a heat insulation strip is penetrated into the tooth openings of the first section bar and the second section bar which are symmetrical;
s3: rolling; rolling and fastening the heat insulation notch and the tooth mouth by using a rolling disc, and fastening the heat insulation strip in the heat insulation notch;
s4: injecting glue; pouring mixed glue into the first cavity, bonding the mixed glue on the heat insulation strip, forming polyurethane heat insulation glue after the mixed glue is naturally solidified and cooled, and forming two firm heat insulation layers with the heat insulation strip;
s5: sawing; and sawing the polyurethane heat-insulating glue higher than the outer sides of the first section bar and the second section bar after the mixed glue is cooled, and finishing the preparation of the strip-penetrating glue-injecting type heat-insulating section bar.
4. The production process of the strip-penetrating glue-injecting type heat-insulating section bar according to claim 3, characterized in that: the strip is worn in the gulleting specifically includes:
s21: the first section and the second section are sent into a first tooth punching machine for positioning, a lower supporting roller and front double-side rollers are adjusted, and the position states of the lower supporting roller and the front double-side rollers are recorded by a position display;
s22: moving the slotting cutter according to the position of the heat insulation notch, wherein the slotting cutter can be lifted up and down and moved left and right to align the slotting cutter with the heat insulation notch to be slotted, slotting the slot on the heat insulation notch by the slotting cutter, and recording the position state of the slotting cutter by a position display; completing the tooth punching of the first section bar and the second section bar;
s23: adjusting a positioning block of the heat insulation strip, pressing a handle, communicating an air inlet and an air outlet, reliably clamping and positioning, and fixing the heat insulation strip;
s24: the heat insulation strips enter the tooth openings of the first section and the second section at a low speed by utilizing a strip penetrating mechanism, the tooth punching quality and the strip penetrating state are checked, and after the tooth punching quality and the strip penetrating state are adjusted, all the locking handles are fixed to complete the strip penetrating work of one heat insulation strip;
s25: feeding the first section and the second section after the first-time slotting and bar penetrating into a second slotting machine, completing the slotting work by the second slotting machine according to the steps, fixing the sections and the heat insulation bars processed by the first slotting machine when the other heat insulation bar is penetrated, and arranging positioning devices on a rear auxiliary frame to adjust the positioning devices to perform the second-time slotting work; the heat insulation strips must be ensured to smoothly and tidily penetrate the first section bar and the second section bar, and the two heat insulation strips are prevented from being uneven;
s26: controlling the tooth punching quality; the tooth punching quality is greatly related to the adjustment of the tooth punching cutter, the state of a tooth punching opening is noticed at any time, a proper tooth punching speed is selected, the tooth punching is in a good state, the shearing value after rolling pressure is met, and whether the cutter is replaced or not is determined if necessary.
5. The production process of the strip-penetrating glue-injecting type heat-insulating section bar according to claim 3, characterized in that: the rolling specifically comprises:
s31: selecting an adjusting gasket according to the section size of the heat insulation section, adjusting the height between each group of rolling wheels, adjusting according to the heat insulation strips, and recording the width position change state by a position display;
s32: adjusting the heights of the roller presses, the fixed auxiliary frames and the movable auxiliary frames to enable the heat insulation sectional materials to work on the same horizontal line;
s33: adjusting an upper vertical lifting auxiliary roller of the roller press, mainly adjusting a lower auxiliary roller, ensuring that the distances between three groups of lower supporting rollers and the lower roller press are consistent, and adjusting the upper auxiliary roller when the heat insulation section enters the roller press;
s34: adjusting and determining the width of each group of rolling wheels;
s35: putting the heat insulation section bar which is penetrated with the heat insulation strip into a roller press for pressure test, and adjusting an upper auxiliary roller which vertically ascends and descends from slow speed to fast speed; the problems of slipping, bending, twisting, inclination, warping and the like of the heat insulation section bar during feeding are avoided;
s36: adjusting pressing force and pre-pressing force according to an HTS-1 force tester;
s37: adjusting a straightening roller set; can be finely adjusted up and down and back and forth, has small displacement and attention to adjustment
S38: after a heat insulation section is rolled in a test mode, the heat insulation section is put on a test platform, whether the heat insulation section is bent or twisted and deformed or not is checked, whether a non-pressure crack exists or not is checked, a sample with the length of 100mm is cut out to be subjected to a shearing force test, after the heat insulation section is qualified, each adjusting key can be locked to continue working, relevant parameters are recorded, and if the heat insulation section is not qualified, adjustment is carried out according to conditions.
6. The production process of the strip-penetrating glue-injecting type heat-insulating section bar according to claim 5, characterized in that: the adjusting and determining the width of each group of rolling wheels specifically comprises:
s341: after the first group of rolling discs contact the heat insulation section, the rolling discs are pre-stretched for 1.5 circles, the trial rolling ends are withdrawn when the length is 200mm, and the heat insulation section is pushed and pulled longitudinally by hands until the first section and the second section are not moved;
s34: 2: after the second group of rolling discs contact the heat insulation section, the rolling discs are pre-stretched for 3 circles, the pressure displayed by the pressure discs is 2500-6000N, and the actual pressure value is subject to the qualification of the shear strength of the heat insulation section;
s343: and the third group of rolling discs are pre-stretched for 2 circles after contacting the heat insulation section bars.
7. The strip-penetrating glue-injecting type heat insulation section bar and the production process thereof as claimed in claim 1 or 3, wherein the strip-penetrating glue-injecting type heat insulation section bar is characterized in that: the components of the mixed glue comprise isocyanate and polyol; the ratio of the isocyanate to the polyol is 0.85-0.9: 1.
8. The production process of the strip-penetrating glue-injecting type heat-insulating section bar according to claim 3, characterized in that: the glue injection specifically comprises:
s41: checking the quantity of isocyanate and polyol, and controlling the ratio of the isocyanate to the polyol to be 0.9: 1; controlling the temperature of isocyanate and polyol to be 20-30 ℃;
s42: adjusting the position of the heat insulation section bar, fixing the heat insulation section bar, adjusting the glue injection nozzle to enable the glue injection nozzle to be matched with the first cavity of the heat insulation section bar, and preparing glue injection;
s43: checking the glue injection condition; adjusting a manual handle to control the glue injection speed, checking the saturation of the first cavity,
checking whether the mixed glue in the first cavity has a bubble phenomenon; the appearance of the selected mixed glue after curing is black and semitransparent foaming-free solid, and heat-insulating glue with short curing time is selected as far as possible;
s44: checking the adhesion degree of the mixed glue and the heat insulation section; during pouring, the temperature of the heat insulation section bar is kept to be higher than 18 ℃, and the temperature of the mixed glue is ensured to be controlled to be 25 +/-5 ℃ before and during pouring;
s45: after the mixed glue is cooled to form polyurethane heat-insulating glue, testing the hardness of the polyurethane heat-insulating glue, wherein the Brinell hardness of the polyurethane heat-insulating glue is 65-85 HB, and checking whether the color of the polyurethane heat-insulating glue is black and bright;
s46: sealing the first cavities at two sides of the heat-insulating section bar with adhesive tapes, and placing the section bar in different types and in order
And (5) the consistency is achieved.
9. The production process of the strip-penetrating glue-injecting type heat-insulating section bar according to claim 3, characterized in that: the sawing material specifically comprises:
s51: after the heat insulation section bar subjected to glue injection is cooled for 30 minutes, performing saw cutting;
s52: adjusting the distance of the heat insulation section bar, and fixing the heat insulation section bar;
s53: adjusting the position of the saw blade; the position of the saw blade is adjusted on the central line of the first cavity, the position of the saw blade is slowly adjusted up and down, and the sawn material cannot be too shallow or too deep;
s54: and when the sawing is finished, all the valve switches are closed, and the power supply is cut off.
10. The production process of the strip-penetrating glue-injecting type heat-insulating section bar according to claim 8, characterized in that: the glue injection process control method also comprises the following steps: cleaning the glue injection nozzle to prevent the glue injection nozzle from being blocked; the positions and angles of the glue injection nozzle and the first cavity are continuously adjusted, so that the included angle between the glue injection nozzle and the advancing direction of the surface of the heat insulation section bar is kept between 75 degrees and 80 degrees, and the first cavity is completely infiltrated by mixed glue.
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| CN201911416671.5A CN111006122A (en) | 2019-12-31 | 2019-12-31 | Strip-penetrating glue-injecting type heat-insulating section and production process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089900A (en) * | 2021-03-03 | 2021-07-09 | 海门市品一铝业有限公司 | High-heat-insulation glass curtain wall and processing technology thereof |
| CN113757487A (en) * | 2021-08-18 | 2021-12-07 | 湖北宏箭轻合金材料科技有限公司 | Middle concave sheet-shaped heat insulation profile and mounting method |
-
2019
- 2019-12-31 CN CN201911416671.5A patent/CN111006122A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089900A (en) * | 2021-03-03 | 2021-07-09 | 海门市品一铝业有限公司 | High-heat-insulation glass curtain wall and processing technology thereof |
| CN113757487A (en) * | 2021-08-18 | 2021-12-07 | 湖北宏箭轻合金材料科技有限公司 | Middle concave sheet-shaped heat insulation profile and mounting method |
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