CN107775970B - Equipment for producing thermoplastic continuous fiber prepreg tape pipe and using method thereof - Google Patents
Equipment for producing thermoplastic continuous fiber prepreg tape pipe and using method thereof Download PDFInfo
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- CN107775970B CN107775970B CN201610760764.XA CN201610760764A CN107775970B CN 107775970 B CN107775970 B CN 107775970B CN 201610760764 A CN201610760764 A CN 201610760764A CN 107775970 B CN107775970 B CN 107775970B
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- pipe
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- 239000000835 fiber Substances 0.000 title claims abstract description 62
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 49
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 65
- 239000002131 composite material Substances 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000004513 sizing Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 56
- 238000010438 heat treatment Methods 0.000 claims description 42
- 239000004033 plastic Substances 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000010137 moulding (plastic) Methods 0.000 abstract description 2
- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
- B29C69/002—Winding
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
- B29C53/845—Heating or cooling especially adapted for winding and joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Abstract
The invention relates to the field of plastic molding composite materials containing reinforced materials, in particular to equipment for producing thermoplastic continuous fiber prepreg tape pipes and a using method thereof. An apparatus for the production of thermoplastic continuous fibre prepreg tape tubing, comprising an extruder (1), characterized in that: the device is characterized by further comprising a belt winding machine (21), a film winding machine (22), a first tractor (31), a second tractor (32), an oven (4), a vacuum box (5), a marking machine (6), a cutting machine (7) and a material receiving table (8). The use method of the equipment for producing the thermoplastic continuous fiber prepreg tape pipe is characterized by comprising the following steps in sequence: a. preparing; b. extruding the inner layer; c. winding a prepreg tape; d. winding a thermoplastic film; e. sizing; f. cooling; g. and (6) collecting. The pipe material of the invention has high quality and saves raw materials.
Description
Technical Field
The invention relates to the field of plastic molding composite materials containing reinforced materials, in particular to equipment for producing thermoplastic continuous fiber prepreg tape pipes and a using method thereof.
Background
The continuous fiber reinforced thermoplastic composite pipe has the advantages of high strength, thin wall, light weight, long service life, corrosion resistance, sanitation, environmental protection, green and the like, is widely applied to pipe networks of mountains, reservoirs, river diversion, urban water supply, centralized heat supply, centralized air conditioners, fuel gas delivery, crude oil delivery and the like, adopts wound continuous fibers to bear stress loads inside and outside the pipe, changes the condition that the original pipeline is made of plastic materials or metal materials to bear the stress loads inside and outside the pipe, and is a subversive revolution in the pipeline field.
The tensile strength of the prepreg tape made of the continuous glass fiber can reach over 1200MPa, compared with that of steel material of 325MPa and plastic material of 26MPa, the composite pipe made of the continuous glass fiber has thinner pipe wall and lighter weight compared with steel pipe and common plastic pipe, and the composite pipe can reduce the pipe wall by 60 percent and the weight by 50 percent compared with common plastic material.
The continuous fiber reinforced thermoplastic composite pipe has the corrosion resistance and the sanitation of a plastic pipeline and the high strength of a ceramic material, and is the development direction of the pipeline industry in the future.
However, the existing technology for producing the continuous fiber reinforced thermoplastic composite pipe has the problems of large energy consumption, thick plastic walls of the inner layer and the outer layer, non-round pipe section, hot melting and delamination among layers, incapability of continuous production and the like. China with publication number 102990923A specially favorable for 2013, 03 and 27 discloses a method for preparing a continuous fiber reinforced thermoplastic composite prepreg tape pipe, which comprises the steps of putting a composite prepreg tape into a roll placing device, enabling the composite prepreg tape to sequentially pass through tension rollers in a tension roller set, preheating the treated composite prepreg tape, heating the preheated composite prepreg tape at a winding point, winding the heated composite prepreg tape, and finally performing in-situ consolidation molding to obtain the pipe; chinese special for 2016, 04, 27 discloses "a manufacturing apparatus and method for winding a continuous fiber reinforced prepreg tape around a krah pipe", having publication No. 105522725a, which method comprises: continuous fibers on a continuous fiber creel pass through an extruder and enter a continuous fiber flow channel in a multilayer distributor, and are pressed by a press roll and wound by a pipeline core mold; the hot melt resin flow channel through which the extruder extrudes hot melt resin into the multilayer distributor is wound outside the core piping mold together with the continuous fibers impregnated with each other at the middle and end positions of the multilayer distributor. The continuous fiber reinforced thermoplastic composite pipe produced by the two processes needs a lining steel pipe as a mould, cannot be produced by a continuous method, has low production efficiency, is difficult to demould at the inner layer and remove air bubbles between layers, and the like. The Chinese special benefit of 2012, 08 and 01 of the grant publication No. 202360912U discloses a continuous fiber prepreg tape winding reinforced composite pipe, which adopts an inner plastic pipe as a die for winding a thermoplastic prepreg tape on a winding layer, and winds the prepreg tape while heating and finally compounds a surface plastic layer.
In summary, the production of continuous fiber reinforced thermoplastic composite pipes by the current technology has process or product quality problems.
SUMMERY OF THE UTILITY MODEL
The invention discloses equipment for producing a thermoplastic continuous fiber prepreg tape pipe and a using method thereof, aiming at overcoming the defects of the prior art and providing composite pipe production equipment and a production process which have high pipe material quality and save raw materials.
The invention achieves the purpose by the following technical scheme:
an apparatus for producing thermoplastic continuous fiber prepreg tape tubing, comprising an extruder, characterized in that: also comprises a belt winding machine, a film winding machine, a first tractor, a second tractor, an oven, a vacuum box, a marking machine, a cutting machine and a material receiving platform,
the belt winding machine, the film winding machine, the drying oven and the vacuum box are sequentially arranged in front of the extruder head, the first tractor is arranged between the film winding machine and a feeding hole of the drying oven, the second tractor is arranged between a discharging hole of the drying oven and a feeding hole of the vacuum box, the marking machine and the cutting machine are sequentially arranged in front of a discharging hole of the vacuum box, and the material receiving platform is arranged below a blanking hole of the cutting machine;
the central axes of the head of the extruder, the rotary table with the winding machine, the rotary table of the film winding machine, the first tractor and the second tractor are superposed with each other;
the turntable with the winding machine and the turntable with the film winding machine rotate around the central axis of the inner-layer thin-walled tube and respectively drive the fiber prepreg tape and the thermoplastic film to rotate so as to be sequentially wound on the outer side surface of the inner-layer thin-walled tube;
the first tractor and the second tractor both adopt multi-claw tractors;
a sizing sleeve and a spray head are arranged in the vacuum box.
The equipment for producing the thermoplastic continuous fiber prepreg tape pipe is characterized in that: a blower is arranged in the oven, or the box body of the oven is rotatably arranged on the base, so that hot air generated by the oven during heating can rotate and flow in the box body of the oven to uniformly heat the composite pipe;
a heating area in the oven is sequentially divided into three heating sections with the lengths of 1#, 2# and 3# and the heating temperatures of which are not all the same along the direction from the feed inlet to the discharge outlet, and the length and the heating temperature of the heating section 1# are respectively set as L and T, so that the length and the heating temperature of the heating section 2# are respectively 0.8L-1.2L and 0.6T-1T, and the length and the heating temperature of the heating section 3# are respectively 1.5L-2.5L and 0.4T-0.7T;
the vacuum degree in the vacuum box is 20 kPa-40 kPa.
The using method of the equipment for producing the thermoplastic continuous fiber prepreg tape pipe is characterized by comprising the following steps of:
a. preparing: putting a plastic raw material into an extruder, winding a fiber prepreg tape on a turntable of a tape winding machine, and pasting a thermoplastic film on the turntable of a film winding machine;
b. extruding an inner layer: extruding the plastic raw material into an inner layer thin-walled tube by an extruder;
c. winding the prepreg tape: the turntable of the belt winding machine continuously rotates at a constant speed, and the fiber prepreg belt is wound on the outer side surface of the inner thin-walled tube in a crossed manner to form a fiber prepreg belt layer;
d. winding the thermoplastic film: continuously rotating a turntable of the film winding machine at a constant speed, and coating a thermoplastic film on the outer side surface of the fiber pre-impregnated tape layer to form a thermoplastic film layer, so as to prepare a composite pipe with three layers of cross sections;
e. sizing: the composite pipe is pulled into the drying oven to be heated by the first tractor, after the composite pipe is heated to a molten state, the composite pipe in the molten state is pulled into the vacuum box by the second tractor, the sizing sleeve is inserted into the composite pipe, and the vacuum box is vacuumized to form a negative pressure environment, so that the inner diameter of the composite pipe is fixed;
f. and (3) cooling: spraying cooling water to the composite pipe by the spray header to cool and shape the composite pipe; the composite tube becomes a thin-wall three-layer composite tube with a multi-layer cross winding middle layer and a isomorphous structure chemical bonding interlayer;
g. collecting: the second tractor pulls the composite tube out of the vacuum box, the marking machine marks the outer side face of the composite tube, and the cutting machine cuts the composite tube and then sends the composite tube to the material receiving platform.
The use method of the equipment for producing the thermoplastic continuous fiber prepreg tape pipe is characterized by comprising the following steps of: when preparing in the step a, the fiber prepreg tape is a plastic and fiber blended tape, the plastic is any one of PP, PE, PA and PVC, and the mass percent of the plastic is 30-40%; the fiber is any one of glass fiber, carbon fiber, polyamide fiber, polyester fiber and aramid fiber, and the mass percentage of the fiber is 60-70%;
the thickness of the thermoplastic film is 0.1 mm-0.2 mm.
The use method of the equipment for producing the thermoplastic continuous fiber prepreg tape pipe is characterized by comprising the following steps of: b, when the inner layer is extruded, the thickness of the pipe wall of the inner layer thin-wall pipe is 1 mm-2 mm;
c, when winding the prepreg tape, the number of winding layers of the fiber prepreg tape is not more than five; d, when winding the thermoplastic film, the number of the coating layers of the thermoplastic film is not more than five, and the thickness of the thermoplastic film layer is 0.2 mm-1.0 mm.
The composite pipe is manufactured by adopting the method of firstly cold winding, then heating, sizing, extruding and cooling, the roundness of the section of the pipe can be effectively corrected, the appearance of the pipe is smooth, and the defects that the roundness of the section of the pipe is difficult to control and the appearance is rough and unsmooth caused by the method of heating, winding and then integrally cooling and shaping are avoided; the continuous winding and continuous heating process can continuously produce products with consistent quality, and overcomes the defects that a lining die method cannot continuously produce products, the efficiency is low and the product quality is inconsistent; the process of external sizing and inner wall melting extrusion cooling sizing is adopted, so that the multilayer prepreg tapes and the inner and outer plastics are more closely fused and adhered into a whole, and the problem that the multilayer prepreg tapes on the section of the pipe are not tight enough while being heated and wound is solved;
the invention can reduce the wall thickness of the inner layer pipe from 5 mm-10 mm to 1 mm-2 mm, and the wall thickness of the surface layer pipe from 3 mm-4 mm to 0.2 mm-1 mm, thereby saving more than 60% of materials, and also reducing the heating energy consumption, production procedures and investment consumed on an extruder and a die;
the invention adopts the rotary sectional type heating oven, solves the problems of infrared penetration rapid heating and pipe surface temperature control, three layers of the composite pipe are heated in the oven at one time, each layer of the pipe is uniformly and thoroughly heated, the temperature of the circumference is balanced, and the section of the produced composite pipe is not deformed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
figure 2 is a schematic cross-sectional view of a composite tube made according to the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
An apparatus for producing thermoplastic continuous fiber prepreg tape pipes comprises an extruder 1, a tape winder 21, a film winder 22, a first tractor 31, a second tractor 32, an oven 4, a vacuum box 5, a labeling machine 6, a cutting machine 7 and a material receiving table 8, and has the specific structure as shown in fig. 1:
the belt winding machine 21, the film winding machine 22, the drying oven 4 and the vacuum box 5 are sequentially arranged in front of the extruder head 1, the first tractor 31 is arranged between the film winding machine 22 and a feeding hole of the drying oven 4, the second tractor 32 is arranged between a discharging hole of the drying oven 4 and a feeding hole of the vacuum box 5, the marking machine 6 and the cutting machine 7 are sequentially arranged in front of a discharging hole of the vacuum box 5, and the material receiving platform 8 is arranged below a blanking hole of the cutting machine 7;
the central axes of the head of the extruder 1, the turntable of the tape winder 21, the turntable of the film winder 22, the first tractor 31 and the second tractor 32 coincide with each other;
the turntable of the belt winding machine 21 and the turntable of the film winding machine 22 both rotate around the central axis of the inner-layer thin-walled tube 91 and respectively drive the fiber prepreg tape and the thermoplastic film to rotate so as to be sequentially wound on the outer side surface of the inner-layer thin-walled tube 91;
the first tractor 31 and the second tractor 32 both adopt multi-claw tractors;
a blower can be arranged in the oven 4, or the box body of the oven 4 can be rotatably arranged on the base, so that hot air generated when the oven 4 is heated can rotate and flow in the box body of the oven 4 to uniformly heat the composite pipe 9; the heating zone in oven 4 is divided into three length and the heating temperature of 1#, 2# and 3# in proper order along the direction from the feed inlet to the discharge gate all are not the same heating section entirely, and the length and the heating temperature of setting up 1# heating section are L and T respectively, and then the length and the heating temperature of 2# heating section are 0.8L ~ 1.2L and 0.6T ~ 1T respectively, and the length and the heating temperature of 3# heating section are 1.5L ~ 2.5L and 0.4T ~ 0.7T respectively, in this embodiment: the length and the heating temperature of the No. 1 heating section are respectively 500mm and 300-400 ℃, the length and the heating temperature of the No. 2 heating section are respectively 500mm and 250-300 ℃, and the length and the heating temperature of the No. 3 heating section are respectively 1000mm and 160-200 ℃;
a sizing sleeve 51 and a spray head 52 are arranged in the vacuum box 5, and the vacuum degree in the vacuum box 5 is 20 kPa-40 kPa.
When the method is used, the steps are implemented in sequence as follows:
a. preparing: putting plastic raw materials into an extruder 1, winding a fiber prepreg tape on a turntable of a tape winding machine 21, and pasting a thermoplastic film on a turntable of a film winding machine 22;
the fiber prepreg tape is a plastic and fiber blended tape, the plastic is any one of PP, PE, PA and PVC, and the mass percentage of the plastic is 30-40%; the fiber is any one of glass fiber, carbon fiber, polyamide fiber, polyester fiber and aramid fiber, and the mass percentage of the fiber is 60-70%;
the thickness of the thermoplastic film is 0.1 mm-0.2 mm.
b. Extruding an inner layer: the extruder 1 extrudes the plastic raw material into an inner layer thin-walled tube 91; the thickness of the inner layer thin-walled tube 91 is 1mm to 2 mm.
c. Winding the prepreg tape: the turntable of the belt winding machine 21 continuously rotates at a constant speed, and the fiber prepreg belt is wound on the outer side surface of the inner thin-walled tube 91 in a crossed manner to form a fiber prepreg belt layer 92; the winding layer number of the fiber prepreg tape is five layers.
d. Winding the thermoplastic film: the turntable of the film winding machine 22 continuously rotates at a constant speed, and the thermoplastic film is pasted on the outer side surface of the fiber pre-soaking belt layer 92 to form a thermoplastic film layer 93, so that the composite pipe 9 with three layers of cross sections is manufactured; the number of the coating layers of the thermoplastic film is five, and the thickness of the thermoplastic film layer 93 is 0.2 mm-1.0 mm.
e. Sizing: the first tractor 31 pulls the composite tube 9 into the oven 4 to be heated, after the composite tube 9 is heated to a molten state, the second tractor 32 pulls the composite tube 9 in the molten state into the vacuum box 5, the sizing sleeve 51 is inserted into the composite tube 9, and the vacuum box 5 is vacuumized to form a negative pressure environment, so that the inner diameter of the composite tube 9 is fixed.
f. And (3) cooling: the spray header 52 sprays cooling water to the composite pipe 9 to cool and shape the composite pipe 9; the composite tube 9 becomes a thin-wall three-layer composite tube with multi-layer cross winding in the middle layer and chemical bonding with isomorphous structure in the middle layer.
g. Collecting: the second tractor 32 pulls the composite tube 9 out of the vacuum box 5, the marking machine 6 marks the outer side surface of the composite tube 9, the cutting machine 7 cuts the composite tube 9, and then the composite tube 9 is conveyed to the material receiving platform 8.
The cross-section of the resulting composite tube 9 is shown in figure 2.
Claims (6)
1. An apparatus for the production of thermoplastic continuous fibre prepreg tape tubing, comprising an extruder (1), characterized in that: also comprises a belt winding machine (21), a film winding machine (22), a first tractor (31), a second tractor (32), an oven (4), a vacuum box (5), a marking machine (6), a cutting machine (7) and a material receiving platform (8),
the belt winding machine (21), the film winding machine (22), the drying oven (4) and the vacuum box (5) are sequentially arranged in front of the machine head of the extruder (1), the first tractor (31) is arranged between the film winding machine (22) and the feeding hole of the drying oven (4), the second tractor (32) is arranged between the discharging hole of the drying oven (4) and the feeding hole of the vacuum box (5), the marking machine (6) and the cutting machine (7) are sequentially arranged in front of the discharging hole of the vacuum box (5), and the material receiving platform (8) is arranged below the blanking hole of the cutting machine (7);
the central axes of the head of the extruder (1), the rotary table of the belt winder (21), the rotary table of the film winder (22), the first tractor (31) and the second tractor (32) are coincident with each other;
the first tractor (31) and the second tractor (32) both adopt multi-claw tractors;
a sizing sleeve (51) and a spray head (52) are arranged in the vacuum box (5).
2. The apparatus for the production of thermoplastic continuous fiber prepreg tape tubing as claimed in claim 1, wherein: a blower is arranged in the oven (4), or the box body of the oven (4) is rotatably arranged on the base, so that hot air generated when the oven (4) is heated can rotate and flow in the box body of the oven (4);
a heating area in the oven (4) is sequentially divided into three heating sections with the lengths of 1#, 2# and 3# and the heating temperatures of which are all not all the same along the direction from the feeding hole to the discharging hole, and the length and the heating temperature of the heating section of 1# are respectively set as L and T, so that the length and the heating temperature of the heating section of 2# are respectively 0.8L-1.2L and 0.6T-1T, and the length and the heating temperature of the heating section of 3# are respectively 1.5L-2.5L and 0.4T-0.7T;
the vacuum degree in the vacuum box (5) is 20kPa to 40 kPa.
3. Use of a plant for the production of thermoplastic continuous fiber prepreg tape tubing as claimed in claim 1 or 2, characterized in that it is carried out in sequence by the following steps:
a. preparing: putting a plastic raw material into an extruder (1), winding a fiber prepreg tape on a turntable of a tape winding machine (21), and pasting a thermoplastic film on a turntable of a film winding machine (22);
b. extruding an inner layer: extruding a plastic raw material into an inner layer thin-walled tube (91) by an extruder (1);
c. winding the prepreg tape: a turntable of the belt winding machine (21) continuously rotates at a constant speed, and the fiber prepreg belt is crossly wound on the outer side surface of the inner-layer thin-walled tube (91) to form a fiber prepreg belt layer (92);
d. winding the thermoplastic film: a turntable of the film winding machine (22) continuously rotates at a constant speed, and a thermoplastic film is pasted on the outer side surface of the fiber pre-impregnated tape layer (92) to form a thermoplastic film layer (93), so that a composite pipe (9) with three layers of cross sections is manufactured;
e. sizing: the composite pipe (9) is pulled into the drying oven (4) by the first tractor (31) to be heated, after the composite pipe (9) is heated to a molten state, the composite pipe (9) in the molten state is pulled into the vacuum box (5) by the second tractor (32), the sizing sleeve (51) is inserted into the composite pipe (9), the vacuum box (5) is vacuumized to form a negative pressure environment, and the inner diameter of the composite pipe (9) is fixed;
f. and (3) cooling: the spray header (52) sprays cooling water to the composite pipe (9) to cool and shape the composite pipe (9);
g. collecting: the composite pipe (9) is pulled out of the vacuum box (5) by the second tractor (32), the mark is marked on the outer side surface of the composite pipe (9) by the marking machine (6), the composite pipe (9) is cut by the cutting machine (7), and then the composite pipe (9) is sent to the material receiving table (8).
4. The method of using the apparatus for the production of thermoplastic continuous fiber prepreg tape tubing as claimed in claim 3, wherein: when preparing in the step a, the fiber prepreg tape is a plastic and fiber blended tape, the plastic is any one of PP, PE, PA and PVC, and the mass percent of the plastic is 30-40%; the fiber is any one of glass fiber, carbon fiber, polyamide fiber, polyester fiber and aramid fiber, and the mass percentage of the fiber is 60-70%;
the thickness of the thermoplastic film is 0.1 mm-0.2 mm.
5. The method of using the apparatus for the production of thermoplastic continuous fiber prepreg tape tubing as claimed in claim 3, wherein: b, when the inner layer is extruded, the thickness of the pipe wall of the inner layer thin-wall pipe (91) is 1-2 mm;
c, when winding the prepreg tape, the number of winding layers of the fiber prepreg tape is not more than five; d, when winding the thermoplastic film, the number of the coating layers of the thermoplastic film is not more than five, and the thickness of the thermoplastic film layer (93) is 0.2 mm-1.0 mm.
6. The use of the apparatus for the production of thermoplastic continuous fiber prepreg tape tubing as claimed in claim 4, wherein: b, when the inner layer is extruded, the thickness of the pipe wall of the inner layer thin-wall pipe (91) is 1-2 mm;
c, when winding the prepreg tape, the number of winding layers of the fiber prepreg tape is not more than five; d, when winding the thermoplastic film, the number of the coating layers of the thermoplastic film is not more than five, and the thickness of the thermoplastic film layer (93) is 0.2 mm-1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610760764.XA CN107775970B (en) | 2016-08-30 | 2016-08-30 | Equipment for producing thermoplastic continuous fiber prepreg tape pipe and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610760764.XA CN107775970B (en) | 2016-08-30 | 2016-08-30 | Equipment for producing thermoplastic continuous fiber prepreg tape pipe and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107775970A CN107775970A (en) | 2018-03-09 |
| CN107775970B true CN107775970B (en) | 2019-12-20 |
Family
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Effective date of registration: 20240115 Address after: 650600 Jincheng area of Jinning Industrial Park, Kunming City, Yunnan Province Patentee after: YUNNAN YUTONG STEEL PIPE MANUFACTURING CO.,LTD. Address before: 200949, No. 188 Changhong Road, Luojing Town, Baoshan District, Shanghai Patentee before: Lin Shiping |