CN106881895B - The production technology and its production line of door and window composite steel-plastic sections - Google Patents
The production technology and its production line of door and window composite steel-plastic sections Download PDFInfo
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- CN106881895B CN106881895B CN201710079135.5A CN201710079135A CN106881895B CN 106881895 B CN106881895 B CN 106881895B CN 201710079135 A CN201710079135 A CN 201710079135A CN 106881895 B CN106881895 B CN 106881895B
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- wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0003—Producing profiled members, e.g. beams
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7428—Transition metals or their alloys
- B29C66/74283—Iron or alloys of iron, e.g. steel
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention relates to the processing method technical fields of composite material, it is the production technology and its production line of a kind of door and window composite steel-plastic sections, production technology comprises the following steps that the first step, the stock of steel coil strip and PVC plastic profile, order stock up in no particular order, it carries out, specifically includes respectively or side by side: 1) stock of steel coil strip: the coil of strip that surface is coated with weather resistant coatings being sheared by slitter, so that formation width is suitable for being coated on the steel coil strip of corresponding PVC plastic profile side；Production line includes that double-sided adhesive wrap-up, bending cover machine and discharging device, and the outlet port on the right side of coil of strip discharging frame is corresponding with the gating location on the left of double-sided adhesive wrap-up.Both there is the intensity and weather-proof advantage of steel by door and window composite steel-plastic sections produced by the present invention, again with the power savings advantages of PVC profile, and without adding the weather-proof auxiliary agent of the high values such as titanium dioxide, anti ultraviolet agent in PVC plastic profile, to make present invention advantage with good performance and price advantage.
Description
Technical field
The present invention relates to the processing method technical fields of composite material, are a kind of production works of door and window composite steel-plastic sections
Skill and its production line.
Background technique
With the development of technology, user is also higher and higher to the performance requirement of building doors and windows, and good building doors and windows must be same
When have good anti-wind pressure, air-tightness, watertightness, heat insulation property, daylighting and sound insulation property, and at present use single one
Door and window based on kind material cannot sufficiently meet above-mentioned requirements.Therefore, at present aluminum alloy doors and windows be by using it is nonmetallic every
Hot item carries out disconnected heat to profile, and to solve the problems, such as that material thermal conductivity is high, but there are between two aluminum profiles for the hot aluminum alloy doors and windows that break
Distance is smaller, cannot more separate heat radiation, and the thermal effect that breaks is insufficient, and higher cost；PVC plastic door and window is then in door-window section bar
Steel lining is installed in cavity additional to improve the intensity and anti-wind pressure of profile, since steel lining and plastic material inner wall are not to be fitted close,
Can only it is limited increase intensity and anti-wind pressure effect, while PVC material outdoors be easy weather stain.
A kind of manufacturing process of composite steel-plastic sections is disclosed in Chinese invention patent CN200810233281.X, it is described
Manufacturing process specifically: first prepare steel profile and plastic material respectively, then again by the two preparation together, prepare one
The detailed process risen is: --- gluing --- wearing item --- pressurization is compound for fixed profile.This manufacturing process has the disadvantage that
1, process is complicated, including slitting, clod wash prepare steel profile, and extrusion prepares plastic section bar, then is fixed, beaten by steel profile
Glue, wear item, the pressurization processes such as compound prepare composite steel-plastic sections, production process qualifying point is more, and production is unstable.
, after steel profile and plastic material composite surface gluing, composite surface viscosity is very big, by 6 meters of long plastic section bars through
Machine for stringing is needed to have 6 meters of long strokes and biggish power output between two steel profiles, and when power output is larger, it is easy
Damage plastic material.
, since production process is more, cause this technique production composite steel-plastic sections production efficiency extremely low, artificial demand is more, raw
It produces at high cost.
Summary of the invention
The present invention provides the production technologies and its production line of a kind of door and window composite steel-plastic sections, overcome above-mentioned existing
The deficiency of technology can effectively solve the complexity of process existing for existing composite steel-plastic sections, the stability of quality be influenced, in gluing
After wear a problem of difficulty is big, and time-consuming, and production efficiency is low, and plastic material easy to damage, high production cost.
Technical solution of the present invention first is that being realized by following measures: a kind of life of door and window composite steel-plastic sections
Production. art comprises the following steps that
The first step, the stock of steel coil strip and PVC plastic profile, stock order in no particular order, carries out respectively or side by side, specific to wrap
It includes:
1) stock of steel coil strip: the coil of strip that surface is coated with weather resistant coatings is sheared by slitter, thus shape
The steel coil strip of corresponding PVC plastic profile side is coated at width suitable；
2) stock of PVC plastic profile: will PVC plastic profile raw material be added plastic extruder in, then pass sequentially through charging,
Fusion plastification, machine head port mould are squeezed out, are formed, is cooling, drawing and cutting action, and corresponding PVC plastic profile is made；
Second step, sticking two-faced adhesive tape, concrete operations are as follows: one end of steel coil strip is opened and pass through towing form steel band, so
It is pasted and the consistent double-sided adhesive of width of steel band on the composite surface of steel band afterwards；
Third step covers composition operation, specifically includes:
1) the first composite surface covers: can be by steel band bending with the synchronous steel belt feeding for being stained with double-sided adhesive by PVC plastic profile
So that it is covered covering in device on the outside of PVC plastic profile, and make the first composite surface of PVC plastic profile towards steel band, then leads to
Over-voltage coating device covers on the first composite surface for making steel band closely be wrapped in PVC plastic profile, according still further to the length of PVC plastic profile
Degree cuts steel band；
2) the second composite surface covers: can be by steel band bending with the synchronous steel belt feeding for being stained with double-sided adhesive by PVC plastic profile
So that it is covered covering in device on the outside of PVC plastic profile, and make the second composite surface of PVC plastic profile towards steel band, then leads to
Over-voltage coating device covers on the second composite surface for making steel band closely be wrapped in PVC plastic profile, according still further to the length of PVC plastic profile
Degree cuts steel band, thus obtains composite steel-plastic sections.
Here is the further optimization and/or improvements to invention technology described above scheme:
The above-mentioned device that covers is that bending covers machine, and it may include covering transfer station, PVC plastic profile positioning component that bending, which covers machine,
With steel band die mould component, along left and right to being intervally distributed with PVC plastic profile positioning component, every group of PVC plastic type on covering transfer station
Material positioning component includes the corresponding PVC plastic profile locating wheel of two front-rear positions, and the axis of PVC plastic profile locating wheel is in perpendicular
Histogram to；Corresponding PVC plastic profile locating wheel top position covers in transfer station along left and right to be intervally distributed with can sheathing tape
The die mould wheel group of full scope, die mould wheel group include horizontal steel band die mould wheel and angle steel band die mould wheel, horizontal steel band die mould wheel
Axis in horizontal direction, the axis of angled steel band die mould wheel have angle with vertical direction；Each PVC plastic profile positioning
Wheel, horizontal steel band die mould wheel and angle steel band die mould wheel, which pass through bidirectional modulation component and be mounted on, to be covered in transfer station.
Above-mentioned every group of bidirectional modulation component may each comprise two-way sliding sleeve, be vertically directed bar, horizontally-guided bar and fastening screw,
Two-way sliding sleeve is equipped with Vertical Channel up and down and the horizontal channel of front and back perforation, is vertically directed rod set mounted in Vertical Channel
Interior, the bottom end for being vertically directed bar, which is fixedly mounted on, to be covered in transfer station, and horizontally-guided rod set is in horizontal channel, in two-way cunning
Putting on to be additionally provided with can hold out against in the fastening screw being vertically directed on bar and can hold out against the fastening screw on horizontally-guided bar,
Corresponding PVC plastic profile locating wheel or horizontal steel band die mould wheel or angle steel band die mould are equipped with by wheel shaft on horizontally-guided bar
Wheel.
Above-mentioned horizontal steel band die mould wheel and angle steel band die mould wheel can be steel die mould wheel, and PVC plastic profile locating wheel is
Glue locating wheel.
In above-mentioned third step after the completion of covering composition operation, fixed length can be carried out to thus obtained composite steel-plastic sections and cut
It cuts.
Coil of strip can be 55mm to 115mm by the width that slitter carries out the steel coil strip of shearing formation in the above-mentioned first step
Between.
The raw material of above-mentioned PVC plastic profile is according to the mass fraction can include: PVC is 100 parts, and stabilizer is 3 to 6 parts, tool
There is core --- the acrylic acid esters co-polymer ACR of shell structure is 1 to 4 part, and haloflex CPE is 8 to 5 parts, lubricant 0.1
To 0.5 part, calcium carbonate is 20 to 40 parts, and pigment is 0 to 3 part, and antibacterial agent is 0.5 to 3 part, and UV resistant agent is 0.5 to 3 part.
Technical solution of the present invention second is that being realized by following measures: it is multiple that one kind being able to achieve above-mentioned door and window steel modeling
The production line of the production technology of profile material is controlled including edge to the coil of strip discharging frame, double-sided adhesive wrap-up, charging being arranged successively
Device, bending cover machine and discharging device, the outlet port on the right side of coil of strip discharging frame and the charging on the left of double-sided adhesive wrap-up
Mouthful position is corresponding, and it is opposite that the discharge port position on the right side of double-sided adhesive wrap-up with bending covers the steel band entry position on the left of machine
It answers, the outlet port on the right side of feeding device covers that the PVC plastic profile entry position on the left of machine is corresponding, and bending covers machine with bending
The outlet port on right side is corresponding with the entry position on the left of discharging device, and bending covers the steel band entrance on the left of machine and is located at bending
Cover the top of the PVC plastic profile entrance on the left of machine.
Here is the further optimization and/or improvements to invention technology described above scheme:
It may include covering transfer station, PVC plastic profile positioning component and steel band die mould component that above-mentioned bending, which covers machine, cover
Along left and right to being intervally distributed with PVC plastic profile positioning component in transfer station, every group of PVC plastic profile positioning component includes before two
The corresponding PVC plastic profile locating wheel in position afterwards, the axis of PVC plastic profile locating wheel are in vertical direction；Corresponding PVC plastic profile is fixed
Position wheel top position cover in transfer station along left and right to be intervally distributed with can sheathing tape full scope die mould wheel group, die mould
Wheel group includes horizontal steel band die mould wheel and angle steel band die mould wheel, the axis of horizontal steel band die mould wheel in horizontal direction, all angles
The axis of degree steel band die mould wheel has angle with vertical direction；Each PVC plastic profile locating wheel, horizontal steel band die mould wheel and angle
Degree steel band die mould wheel, which passes through bidirectional modulation component and is mounted on, to be covered in transfer station.
Above-mentioned every group of bidirectional modulation component may each comprise two-way sliding sleeve, be vertically directed bar, horizontally-guided bar and fastening screw,
Two-way sliding sleeve is equipped with Vertical Channel up and down and the horizontal channel of front and back perforation, is vertically directed rod set mounted in Vertical Channel
Interior, the bottom end for being vertically directed bar, which is fixedly mounted on, to be covered in transfer station, and horizontally-guided rod set is in horizontal channel, in two-way cunning
Putting on to be additionally provided with can hold out against in the fastening screw being vertically directed on bar and can hold out against the fastening screw on horizontally-guided bar,
Corresponding PVC plastic profile locating wheel or horizontal steel band die mould wheel or angle steel band die mould are equipped with by wheel shaft on horizontally-guided bar
Wheel.
Above-mentioned horizontal steel band die mould wheel and angle steel band die mould wheel can be steel die mould wheel, and PVC plastic profile locating wheel is
Glue locating wheel.
Above-mentioned double-sided adhesive wrap-up may include winding shell, double-sided adhesive positioning component, double-sided adhesive discharging frame and double-sided adhesive
Rolling frame, the double-sided adhesive that left and right perforation is equipped on winding shell pass through chamber, and corresponding double-sided adhesive passes through chamber left part outer fix
Double-sided adhesive discharging frame is installed, corresponding double-sided adhesive is equipped with double on the winding shell of chamber right part outer fix on winding shell
Face glue rolling frame passes through intracavitary edge left and right to equipped at least one set of double-sided adhesive positioning component, every group of double-sided adhesive positioning in double-sided adhesive
Component includes the corresponding double-sided adhesive locating wheel in two upper and lower positions, and each double-sided adhesive locating wheel is installed in winding shell
On.
It is mountable on above-mentioned discharging device to have fixed-length cutting device.
Structure of the invention is reasonable and compact, easy to use, and door and window composite steel-plastic sections obtained are by by steel band
It is covered on the outside of PVC plastic profile and is made, not only with the intensity and weather-proof advantage of steel, but also the power savings advantages with PVC profile, together
When, due to PVC plastic profile by surface coated with weather resistant coatings steel band cover so that in PVC plastic profile without add titanium dioxide,
The weather-proof auxiliary agent of the high values such as anti ultraviolet agent, and do not need to wear in door and window assembling process and connect steel lining, door and window profile can be met
Performance requirement makes it easy to promote using the production line to make present invention advantage with good performance and price advantage
Sticking two-faced adhesive tape and the process for covering composition operation, obtain door and window composite steel-plastic sections in the achievable production technology,
It is easy to operate, easy to use, convenient and efficient.
Detailed description of the invention
Attached drawing 1 is the main view broken section structural schematic diagram of the embodiment of the present invention two.
Attached drawing 2 is that the bending in attached drawing 1 covers section view enlarged structure schematic diagram of the machine at A-A.
Attached drawing 3 is enlarged structure schematic diagram of door and window composite steel-plastic sections when for sectional in attached drawing 2.
Attached drawing 4 is enlarged structure schematic diagram of door and window composite steel-plastic sections when for frame section in attached drawing 2.
Attached drawing 5 is enlarged structure schematic diagram of the door and window composite steel-plastic sections in stile's profile in attached drawing 2.
Coding in attached drawing is respectively as follows: 1 for coil of strip discharging frame, and 2 be feeding device, and 3 be discharging device, and 4 be winding shell,
5 be double-sided adhesive discharging frame, and 6 be double-sided adhesive rolling frame, and 7 be double-sided adhesive locating wheel, and 8 be steel coil strip, and 9 be steel band, and 10 be to cover biography
Platform is sent, 11 be PVC plastic profile, and 12 be PVC plastic profile locating wheel, and 13 be horizontal steel band die mould wheel, and 14 be angle steel band die mould wheel,
15 be two-way sliding sleeve, and 16 is are vertically directed bar, and 17 be horizontally-guided bar, and 18 be fixed-length cutting device.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 1
Butut mode be described, such as: front, rear, top, and bottom, left and right positional relationship be the Butut according to Figure of description
Direction determines.
Below with reference to examples and drawings, the invention will be further described:
Embodiment one: a kind of production technology of door and window composite steel-plastic sections comprises the following steps that
The first step, the stock of steel coil strip 8 and PVC plastic profile 11, stock order in no particular order, carry out, tool respectively or side by side
Body includes:
1) stock of steel coil strip 8: the coil of strip that surface is coated with weather resistant coatings is sheared by slitter, thus shape
The steel coil strip 8 of corresponding 11 side of PVC plastic profile is coated at width suitable；
2) stock of PVC plastic profile 11: the raw material of PVC plastic profile 11 is added in plastic extruder, is then passed sequentially through
Charging, fusion plastification, machine head port mould is squeezed out, is formed, is cooling, drawing and cutting action, and corresponding PVC plastic profile 11 is made；
Second step, sticking two-faced adhesive tape, concrete operations are as follows: one end of steel coil strip 8 is opened and pass through towing form steel band 9,
Then it is pasted and the consistent double-sided adhesive of width of steel band on the composite surface of steel band 9；
Third step covers composition operation, specifically includes:
1) the first composite surface covers: can be by steel band 9 by be sent into synchronous with the steel band 9 of double-sided adhesive is stained with of PVC plastic profile 11
Bending makes it cover covering in device in 11 outside of PVC plastic profile, and makes the first composite surface of PVC plastic profile 11 towards steel band
9, then by covering the covering on the first composite surface for making steel band 9 closely be wrapped in PVC plastic profile 11 of device, according still further to
The length of PVC plastic profile 11 cuts steel band 9；
2) the second composite surface covers: can be by steel band 9 by be sent into synchronous with the steel band 9 of double-sided adhesive is stained with of PVC plastic profile 11
Bending makes it cover covering in device in 11 outside of PVC plastic profile, and makes the second composite surface of PVC plastic profile 11 towards steel band
9, then by covering the covering on the second composite surface for making steel band 9 closely be wrapped in PVC plastic profile 11 of device, according still further to
The length of PVC plastic profile 11 cuts steel band 9, thus obtains composite steel-plastic sections.Thus it can be made through this embodiment
Door and window composite steel-plastic sections, and the door and window composite steel-plastic sections are by the way that steel band 9 to be covered on outside PVC plastic profile 11
Side is made, not only with the intensity and weather-proof advantage of steel, but also the power savings advantages with PVC profile, simultaneously as PVC plastic profile
11, which are coated with weather resistant coatings steel band 9 by surface, covers, so that without adding titanium dioxide, anti ultraviolet agent etc. in PVC plastic profile 11
The weather-proof auxiliary agent of high value, and do not need to wear in door and window assembling process and connect steel lining, the performance requirement of door and window profile can be met, from
And make present invention advantage with good performance and price advantage, make it easy to promote.According to demand, covering device can be used now
There is well-known technique.
Can the production technology of above-mentioned door and window composite steel-plastic sections be advanced optimized or/and be changed according to actual needs
Into:
As shown in attached drawing 1,2,3,4,5, covering device is that bending covers machine, bending cover machine include cover transfer station 10,
PVC plastic profile positioning component and steel band die mould component, it is fixed to PVC plastic profile is intervally distributed with along left and right on covering transfer station 10
Hyte part, every group of PVC plastic profile positioning component include the corresponding PVC plastic profile locating wheel 12 of two front-rear positions, PVC plastic
The axis of profile locating wheel 12 is in vertical direction；Corresponding 12 top position of PVC plastic profile locating wheel covers edge in transfer station 10
To the die mould wheel group for being intervally distributed with energy 9 full scope of sheathing tape, die mould wheel group includes horizontal 13 He of steel band die mould wheel for left and right
Angle steel band die mould wheel 14, the axis of horizontal steel band die mould wheel 13 in horizontal direction, angled steel band die mould wheel 14 axis
There is angle with vertical direction；Each PVC plastic profile locating wheel 12, horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14
It is mounted on and is covered in transfer station 10 by bidirectional modulation component.In use, double-sided adhesive and barrier paper quilt will be pasted with
The starting point of the steel band 9 of removal is pulled to the right alignment with PVC plastic profile 11, and then synchronous feeding bending covers in machine, and
It is set to respectively correspond 11 entrance of 9 entrance of steel band and PVC plastic profile that bending covers machine, PVC plastic profile 11 should be successively from every at this time
Pass through between the corresponding PVC plastic profile locating wheel 12 of two front-rear positions, while steel band 9 should be located at all horizontal steel band pressures
The lower section of type wheel 13 and angle steel band die mould wheel 14 simultaneously covers the corresponding position that effect is coated on PVC plastic profile 11 by it,
Thus can realize PVC plastic profile 11 and steel covers composition operation.
As shown in attached drawing 1,2,3,4,5, every group of bidirectional modulation component includes two-way sliding sleeve 15, is vertically directed bar 16, water
Flat guide rod 17 and fastening screw, two-way sliding sleeve 15 are equipped with Vertical Channel up and down and the horizontal channel of front and back perforation,
It is vertically directed bar 16 to be sleeved in Vertical Channel, the bottom end for being vertically directed bar 16, which is fixedly mounted on, to be covered in transfer station 10, horizontal
Guide rod 17 is sleeved in horizontal channel, is additionally provided with the fastening screw that can be held out against being vertically directed on bar 16 on two-way sliding sleeve 15
And the fastening screw on horizontally-guided bar 17 can be held out against, corresponding PVC is equipped with by wheel shaft on horizontally-guided bar 17
Plastic section bar locating wheel 12 or horizontal steel band die mould wheel 13 or angle steel band die mould wheel 14.Thus it can be realized by bidirectional modulation component
Upward and downward and front and back are carried out to corresponding PVC plastic profile locating wheel 12 or horizontal steel band die mould wheel 13 or angle steel band die mould wheel 14
To position adjust；According to demand, the PVC plastic profile locating wheel 12 on same vertical direction or/and horizontal steel band die mould
Wheel 13 or/and angle steel band die mould wheel 14 can share it is same be vertically directed bar 16, other energy also can be used in bidirectional modulation component
Realize the existing well-known technique of bidirectional modulation.
As shown in attached drawing 1,2,3,4,5, horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14 are steel die mould wheel,
PVC plastic profile locating wheel 12 is glue locating wheel.Can meet respectively the needs of die mould and positioning in this way.According to demand,
Horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14 can also be other metals or non-metallic material for being able to satisfy strength demand
Manufactured die mould wheel.
According to demand, after the completion of covering composition operation, thus obtained composite steel-plastic sections are determined in third step
Long cutting.It can make it easy to place in this way, arrange, transport, sell and use.
According to demand, in the first step coil of strip by slitter carry out shearing formation steel coil strip 8 width be 55mm extremely
Between 115mm.The steel coil strip 8 of different in width is suitable for different types of PVC plastic profile 11, according to the difference of PVC plastic profile 11
Demand can be divided into following five kinds of ranges: 1, width is 58mm between 60mm；2, width is 73mm between 75mm；3, width is
84mm is between 86mm；4, width is 86mm between 88mm；5, width is 111mm between 113mm.
According to demand, it is 100 parts that the raw material of PVC plastic profile 11 includes: PVC according to the mass fraction, and stabilizer is 3 to 6
Part, there is core --- the acrylic acid esters co-polymer ACR of shell structure is 1 to 4 part, and haloflex CPE is 8 to 5 parts, lubricant
Be 0.1 to 0.5 part, calcium carbonate be 20 to 40 parts, pigment be 0 to 3 part, antibacterial agent be 0.5 to 3 part, UV resistant agent be 0.5 to
3 parts.Without adding the weather-proof auxiliary agent of the high values such as titanium dioxide, anti ultraviolet agent in the raw material of this PVC plastic profile 11, can effectively reduce
The production cost of PVC plastic profile 11.
Embodiment two: as shown in attached drawing 1,2,3,4,5, a kind of production work being able to achieve above-mentioned door and window composite steel-plastic sections
The production line of skill is controlled including edge to the coil of strip discharging frame 1, double-sided adhesive wrap-up, feeding device 2, bending pressure being arranged successively
Machine and discharging device 3 are covered, the outlet port on 1 right side of coil of strip discharging frame is opposite with the gating location on the left of double-sided adhesive wrap-up
It answers, it is corresponding that the discharge port position on the right side of double-sided adhesive wrap-up and bending cover 9 entry position of steel band on the left of machine, charging dress
11 entry position of PVC plastic profile that is covered on the left of machine with bending of outlet port for setting 2 right sides is corresponding, and bending covers on the right side of machine
Outlet port is corresponding with the entry position in 3 left side of discharging device, and bending covers 9 entrance of steel band on the left of machine and covers positioned at bending
The top of 11 entrance of PVC plastic profile on the left of machine.In use, coil of strip is pacified by slitter cutting in after steel coil strip 8
It is mounted on double-sided adhesive wrap-up on coil of strip discharging frame 1, and by double-sided adhesive, it then can be complete by double-sided adhesive wrap-up
At the sticking two-faced adhesive tape on steel band 9 and the operation of barrier paper is opened, covering machine by bending can cover steel band 9 corresponding
On PVC plastic profile 11, it thus can be sequentially completed the production technology of one door and window composite steel-plastic sections of embodiment through this embodiment
Middle sticking two-faced adhesive tape and the process for covering composition operation, obtain door and window composite steel-plastic sections, easy to operate, easy to use,
Convenient and efficient.According to demand, existing well-known technique, such as roll shaft conveying device can be used in feeding device 2 and discharging device 3.
The production line of the above-mentioned production technology for being able to achieve door and window composite steel-plastic sections can be made into one according to actual needs
Step optimization or/and improvement:
As shown in attached drawing 1,2,3,4,5, it includes covering transfer station 10, PVC plastic profile positioning component and steel that bending, which covers machine,
Belt-press type component, along left and right to being intervally distributed with PVC plastic profile positioning component, every group of PVC plastic profile on covering transfer station 10
Positioning component includes the corresponding PVC plastic profile locating wheel 12 of two front-rear positions, and the axis of PVC plastic profile locating wheel 12 is in
Vertical direction；Corresponding 12 top position of PVC plastic profile locating wheel covers in transfer station 10 along left and right to being intervally distributed with and can cover
The die mould wheel group of 9 full scope of lid steel band, die mould wheel group include horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14, level
The axis of steel band die mould wheel 13 in horizontal direction, the axis of angled steel band die mould wheel 14 have angle with vertical direction；Often
A PVC plastic profile locating wheel 12, horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14 are pacified by bidirectional modulation component
Mounted in covering in transfer station 10.In use, the starting point for being pasted with the steel band 9 that double-sided adhesive and barrier paper are removed is drawn
It moves to the right alignment with PVC plastic profile 11, then synchronous feeding bending covers in machine, and so that it is respectively corresponded bending and cover machine
11 entrance of 9 entrance of steel band and PVC plastic profile, PVC plastic profile 11 should be successively from the corresponding PVC of every two front-rear position at this time
Pass through between plastic section bar locating wheel 12, while steel band 9 should be located at all horizontal steel band die mould wheel 13 and angle steel band die mould
The lower section of wheel 14 simultaneously covers effect by it and is coated on the corresponding position of PVC plastic profile 11, thus can realize PVC plastic profile 11 with
Steel cover composition operation.
As shown in attached drawing 1,2,3,4,5, every group of bidirectional modulation component includes two-way sliding sleeve 15, is vertically directed bar 16, water
Flat guide rod 17 and fastening screw, two-way sliding sleeve 15 are equipped with Vertical Channel up and down and the horizontal channel of front and back perforation,
It is vertically directed bar 16 to be sleeved in Vertical Channel, the bottom end for being vertically directed bar 16, which is fixedly mounted on, to be covered in transfer station 10, horizontal
Guide rod 17 is sleeved in horizontal channel, is additionally provided with the fastening screw that can be held out against being vertically directed on bar 16 on two-way sliding sleeve 15
And the fastening screw on horizontally-guided bar 17 can be held out against, corresponding PVC is equipped with by wheel shaft on horizontally-guided bar 17
Plastic section bar locating wheel 12 or horizontal steel band die mould wheel 13 or angle steel band die mould wheel 14.Thus it can be realized by bidirectional modulation component
Upward and downward and front and back are carried out to corresponding PVC plastic profile locating wheel 12 or horizontal steel band die mould wheel 13 or angle steel band die mould wheel 14
To position adjust；According to demand, the PVC plastic profile locating wheel 12 on same vertical direction or/and horizontal steel band die mould
Wheel 13 or/and angle steel band die mould wheel 14 can share it is same be vertically directed bar 16, other energy also can be used in bidirectional modulation component
Realize the existing well-known technique of bidirectional modulation.
As shown in attached drawing 1,2,3,4,5, horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14 are steel die mould wheel,
PVC plastic profile locating wheel 12 is glue locating wheel.Can meet respectively the needs of die mould and positioning in this way.According to demand,
Horizontal steel band die mould wheel 13 and angle steel band die mould wheel 14 can also be other metals or non-metallic material for being able to satisfy strength demand
Manufactured die mould wheel.
As shown in attached drawing 1,2,3,4,5, double-sided adhesive wrap-up includes winding shell 4, double-sided adhesive positioning component, double-sided adhesive
Discharging frame 5 and double-sided adhesive rolling frame 6, the double-sided adhesive that left and right perforation is equipped on winding shell 4 pass through chamber, and corresponding double-sided adhesive passes through
Double-sided adhesive discharging frame 5 is installed, corresponding double-sided adhesive passes through chamber right part outer fix on the winding shell 4 of chamber left part outer fix
Double-sided adhesive rolling frame 6 is installed on winding shell 4, passes through intracavitary edge left and right to equipped at least one set of double-sided adhesive positioning in double-sided adhesive
Component, every group of double-sided adhesive positioning component include the corresponding double-sided adhesive locating wheel 7 in two upper and lower positions, each double-sided adhesive positioning
Wheel 7 is installed on winding shell 4.In use, steel coil strip 8 is mounted on coil of strip discharging frame 1, and by steel coil strip 8
Exposed starting point on the outside, which starts and passes through towing, forms steel band 9, needs to make the compound face-down of steel band 9 at this time；Again by double-sided adhesive
On double-sided adhesive discharging frame 5, and keep the viscose glue of double-sided adhesive starting point face-up, the starting point of double-sided adhesive should be located at steel band at this time
9 lower section；After being aligned the starting point of double-sided adhesive with the starting point of steel band 9, be adhesive in two-sided on steel band 9, and by its
Be fed together double-sided adhesive pass through it is intracavitary, be stained at this time double-sided adhesive steel band 9 should be located at every two upper and lower position it is corresponding two-sided
Between glue locating wheel 7；Finally the barrier paper at end will be started positioned at steel band 9 to open, be wrapped on double-sided adhesive rolling frame 6, thus
The operation to 9 sticking two-faced adhesive tape of steel band can be realized by double-sided adhesive wrap-up.According to demand, it can be fixed on winding shell 4
The power drive unit that the axis of double-sided adhesive rolling frame 6 can be driven to rotate is installed；Each double-sided adhesive locating wheel 7 can be by that can adjust
The mode of section upper and lower position is mounted on winding shell 4, as held out against the peace of guide rod with locking nail using sliding sleeve is covered on guide rod
Dress mode, or the component using other conventionally known adjusting positions.
As shown in attached drawing 1,2,3,4,5, fixed-length cutting device 18 is installed on discharging device 3.Thus it can be cut by fixed length
It cuts device 18 and obtains the door and window composite steel-plastic sections of equal length.
The above technical features constitute embodiments of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
Claims (10)
1. a kind of production technology of door and window composite steel-plastic sections, it is characterised in that comprise the following steps that
The first step, the stock of steel coil strip and PVC plastic profile, stock order in no particular order, are carried out respectively or side by side, are specifically included:
1) stock of steel coil strip: the coil of strip that surface is coated with weather resistant coatings is sheared by slitter, to form width
Degree is suitable for the steel coil strip for being coated on corresponding PVC plastic profile side；
2) stock of PVC plastic profile: the raw material of PVC plastic profile is added in plastic extruder, then passes sequentially through charging, melting
Plasticizing, machine head port mould are squeezed out, are formed, is cooling, drawing and cutting action, and corresponding PVC plastic profile is made；
Second step, sticking two-faced adhesive tape, concrete operations are as follows: one end of steel coil strip is opened and pass through towing form steel band, then exist
It is pasted and the consistent double-sided adhesive of width of steel band on the composite surface of steel band；
Third step covers composition operation, specifically includes:
1) the first composite surface covers: steel band bending can be made it by PVC plastic profile and the synchronous steel belt feeding for being stained with double-sided adhesive
Covering in device on the outside of PVC plastic profile is covered, and makes the first composite surface of PVC plastic profile towards steel band, then passes through pressure
Coating device covers on the first composite surface for making steel band closely be wrapped in PVC plastic profile, according still further to the length pair of PVC plastic profile
Steel band is cut；
2) the second composite surface covers: steel band bending can be made it by PVC plastic profile and the synchronous steel belt feeding for being stained with double-sided adhesive
Covering in device on the outside of PVC plastic profile is covered, and makes the second composite surface of PVC plastic profile towards steel band, then passes through pressure
Coating device covers on the second composite surface for making steel band closely be wrapped in PVC plastic profile, according still further to the length pair of PVC plastic profile
Steel band is cut, and composite steel-plastic sections are thus obtained；
Wherein: the device that covers is that bending covers machine, and it includes covering transfer station, PVC plastic profile positioning group which, which covers machine,
Part and steel band die mould component, along left and right to being intervally distributed with PVC plastic profile positioning component, every group of PVC plastic on covering transfer station
Profile positioning component includes the corresponding PVC plastic profile locating wheel of two front-rear positions, and the axis of PVC plastic profile locating wheel is in
Vertical direction；Covering for corresponding PVC plastic profile locating wheel top position can cover steel to being intervally distributed with along left and right in transfer station
Die mould wheel group with full scope, die mould wheel group include horizontal steel band die mould wheel and angle steel band die mould wheel, horizontal steel band die mould
The axis of wheel in horizontal direction, the axis of angled steel band die mould wheel have angle with vertical direction；Each PVC plastic profile is fixed
Position wheel, horizontal steel band die mould wheel and angle steel band die mould wheel, which pass through bidirectional modulation component and be mounted on, to be covered in transfer station.
2. according to the production technology of door and window composite steel-plastic sections described in claim 1, it is characterised in that every group of bidirectional modulation group
Part may each comprise two-way sliding sleeve, be vertically directed bar, horizontally-guided bar and fastening screw, and two-way sliding sleeve is equipped with up and down perpendicular
The horizontal channel of straight channel and front and back perforation is vertically directed rod set in Vertical Channel, is vertically directed the fixed peace in bottom end of bar
Mounted in covering in transfer station, horizontally-guided rod set is additionally provided with to hold out against on two-way sliding sleeve and lead vertically in horizontal channel
Fastening screw on bar and the fastening screw on horizontally-guided bar can be held out against, pass through wheel shaft on horizontally-guided bar and install
There are corresponding PVC plastic profile locating wheel or horizontal steel band die mould wheel or angle steel band die mould wheel；Or/and above-mentioned horizontal steel band pressure
Type wheel and angle steel band die mould wheel can be steel die mould wheel, and PVC plastic profile locating wheel is glue locating wheel.
3. the production technology of door and window composite steel-plastic sections according to claim 1 or 2, it is characterised in that in third step
After the completion of covering composition operation, fixed length cutting is carried out to thus obtained composite steel-plastic sections.
4. the production technology of door and window composite steel-plastic sections according to claim 3, it is characterised in that steel in the first step
The width for the steel coil strip that volume carries out shearing formation by slitter is 55mm between 115mm.
5. the production technology of door and window composite steel-plastic sections according to claim 1 or 2 or 4, it is characterised in that PVC plastic type
The raw material of material includes: that PVC is 100 parts according to the mass fraction, and stabilizer is 3 to 6 parts, has core --- the propylene of shell structure
Esters of gallic acid copolymer A CR be 1 to 4 part, haloflex CPE be 8 to 5 parts, lubricant be 0.1 to 0.5 part, calcium carbonate be 20 to
40 parts, pigment is 0 to 3 part, and antibacterial agent is 0.5 to 3 part, and UV resistant agent is 0.5 to 3 part.
6. the production technology of door and window composite steel-plastic sections according to claim 3, it is characterised in that the original of PVC plastic profile
Material includes: that PVC is 100 parts according to the mass fraction, and stabilizer is 3 to 6 parts, has core --- the esters of acrylic acid of shell structure
Copolymer A CR is 1 to 4 part, and haloflex CPE is 8 to 5 parts, and lubricant is 0.1 to 0.5 part, and calcium carbonate is 20 to 40 parts,
Pigment is 0 to 3 part, and antibacterial agent is 0.5 to 3 part, and UV resistant agent is 0.5 to 3 part.
7. a kind of production for the production technology for being able to achieve door and window composite steel-plastic sections described in any one of claims 1 to 6
Line, it is characterised in that control including edge to the coil of strip discharging frame, double-sided adhesive wrap-up, feeding device, bending pressure being arranged successively
Machine and discharging device are covered, the outlet port on the right side of coil of strip discharging frame is opposite with the gating location on the left of double-sided adhesive wrap-up
It answers, it is corresponding that the discharge port position on the right side of double-sided adhesive wrap-up and bending cover the steel band entry position on the left of machine, charging dress
The PVC plastic profile entry position that outlet port on the right side of setting is covered with bending on the left of machine is corresponding, and bending covers going out on the right side of machine
Mouthful position is corresponding with the entry position on the left of discharging device, and bending covers the steel band entrance on the left of machine and is located at bending to cover machine left
The top of the PVC plastic profile entrance of side.
8. its production line of the production technology according to claim 7 for being able to achieve door and window composite steel-plastic sections, feature
Being that bending covers machine includes covering transfer station, PVC plastic profile positioning component and steel band die mould component, the edge on covering transfer station
To PVC plastic profile positioning component is intervally distributed with, every group of PVC plastic profile positioning component includes that two front-rear positions are opposite for left and right
The PVC plastic profile locating wheel answered, the axis of PVC plastic profile locating wheel are in vertical direction；Corresponding PVC plastic profile locating wheel upper position
That sets covers in transfer station along left and right to the die mould wheel group for being intervally distributed with energy sheathing tape full scope, and die mould wheel group includes water
Flat strip steel die mould wheel and angle steel band die mould wheel, the axis of horizontal steel band die mould wheel in horizontal direction, the angled steel band die mould of institute
The axis of wheel has angle with vertical direction；Each PVC plastic profile locating wheel, horizontal steel band die mould wheel and angle steel band die mould
Wheel, which is mounted on by bidirectional modulation component, to be covered in transfer station.
9. its production line of the production technology according to claim 8 for being able to achieve door and window composite steel-plastic sections, feature
It is that every group of bidirectional modulation component includes two-way sliding sleeve, is vertically directed bar, horizontally-guided bar and fastening screw, on two-way sliding sleeve
Horizontal channel equipped with Vertical Channel and front and back perforation up and down, is vertically directed rod set in Vertical Channel, leads vertically
It is fixedly mounted on and is covered in transfer station to the bottom end of bar, horizontally-guided rod set is also set on two-way sliding sleeve in horizontal channel
Having can hold out against in the fastening screw being vertically directed on bar and can hold out against the fastening screw on horizontally-guided bar, in horizontally-guided
Corresponding PVC plastic profile locating wheel or horizontal steel band die mould wheel or angle steel band die mould wheel are equipped with by wheel shaft on bar；Or/
It is steel die mould wheel with, horizontal steel band die mould wheel and angle steel band die mould wheel, PVC plastic profile locating wheel is glue locating wheel.
10. its production line of the production technology of door and window composite steel-plastic sections is able to achieve according to claim 7 or 8 or 9,
It is characterized in that double-sided adhesive wrap-up includes winding shell, double-sided adhesive positioning component, double-sided adhesive discharging frame and double-sided adhesive winding
Frame, the double-sided adhesive that left and right perforation is equipped on winding shell pass through chamber, and corresponding double-sided adhesive passes through the winding of chamber left part outer fix
Double-sided adhesive discharging frame is installed, corresponding double-sided adhesive is equipped with double-sided adhesive on the winding shell of chamber right part outer fix on shell
Rolling frame passes through intracavitary edge left and right to equipped at least one set of double-sided adhesive positioning component, every group of double-sided adhesive positioning component in double-sided adhesive
It include the corresponding double-sided adhesive locating wheel in two upper and lower positions, each double-sided adhesive locating wheel is installed on winding shell；Or/
With fixed-length cutting device is installed on discharging device.
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| CN115625534B (en) * | 2022-12-06 | 2023-04-07 | 江苏金三力机械制造有限公司 | Automatic production line and production process of steel arch for railway tunnel support |
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