CN111300847B - Pultrusion production line for polyurethane composite material - Google Patents
Pultrusion production line for polyurethane composite material Download PDFInfo
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- CN111300847B CN111300847B CN202010148905.9A CN202010148905A CN111300847B CN 111300847 B CN111300847 B CN 111300847B CN 202010148905 A CN202010148905 A CN 202010148905A CN 111300847 B CN111300847 B CN 111300847B
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- 239000002131 composite material Substances 0.000 title claims abstract description 84
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 22
- 239000004814 polyurethane Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 102
- 239000011248 coating agent Substances 0.000 claims abstract description 101
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a polyurethane composite material pultrusion production line, which comprises a pultrusion die for pultrusion of polyurethane composite material, a cooling mechanism positioned at the downstream of the pultrusion die, and at least one coating unit, wherein the coating unit comprises: the on-line coating die is used for coating the pultrusion composite material on line, and the on-line coating die limits the pultrusion composite material penetrating through the box body to generate deflection and seals the pultrusion composite material when a uniform coating film is applied to the pultrusion composite material; and the switching mechanism drives the online coating die to be positioned at a working or non-working station and is fixed with the online coating die. The invention has the advantage of ensuring the sealing performance.
Description
Technical Field
The invention relates to a pultrusion production line of a polyurethane composite material, which is used for coating a pultrusion composite material formed into a preset shape on line.
Background
The polyurethane pultrusion composite material has the problem of insufficient weather resistance, and particularly in long-term outdoor exposure, the resin layer on the surface is easy to be pulverized, discolored and even exposed to fibers, so the polyurethane pultrusion composite material is generally required to be coated.
US5492583A discloses an in-line coating method and apparatus for pultruded composite materials by adding a coating die after the pultrusion die for in-line coating of pultruded profiles, the coating die having means for applying a uniform coating to the pultruded part, a positioning member comprising a coating chamber for the first application of the coating and a coating die for holding the coating under pressure, the taper having a reduced cross-sectional area in a direction away from the coating chamber, the coating pressure along the outer surface of the pultruded part increasing substantially due to the taper, thereby substantially centering the part. With the coating die of the above structure, there are the following problems:
1. the pultrusion die stretches into the coating die, firstly, the extruded section bar is in clearance fit with the pultrusion die, and the elastic deformation of the section bar and the pultrusion die is small, so that even if the pultrusion die or the section bar has elastic deformation, the gap between the pultrusion die and the section bar cannot be compensated, and therefore, the coating liquid can flow to the section bar along the gap between the pultrusion die and the section bar. Secondly, when the coating die fails, it is necessary to disassemble the coating die, and the entire production line is stopped.
2. The positioning part is installed inside the coating die, and the structure has the following problems: first, if the positioning member is made of flexible material, when the profile passes through the positioning member, the profile will press on the positioning member under the action of its own gravity, leading to the deformation of the positioning member, thereby causing a gap between the profile and the upper portion of the positioning member, and failing to form a seal against the coating liquid. Secondly, if the positioning part is made of a material with higher hardness, due to the tolerance of the pultruded profile, when the size of the profile is larger than the size of the minimum section of the positioning part, the profile and the positioning part are in interference fit and cannot pass through the positioning part; or when the size of the profile is smaller than the size of the minimum section of the positioning part, the gap is formed between the profile and the positioning part, and the coating liquid cannot be sealed.
And 3, the coating die with the structure is inconvenient to assemble, clean and maintain.
Disclosure of Invention
The invention provides a pultrusion production line of a polyurethane composite material, which can ensure the sealing property.
Polyurethane composite pultrusion production line, including the pultrusion mould that is used for polyurethane composite pultrusion, be located the downstream cooling body of pultrusion mould, still include a coating unit at least, the coating unit includes:
the on-line coating die is used for coating the pultrusion composite material on line, and the on-line coating die limits the pultrusion composite material penetrating through the box body to generate deflection and seals the pultrusion composite material when a uniform coating film is applied to the pultrusion composite material;
and the switching mechanism drives the online coating die to be positioned at a working or non-working station and is fixed with the online coating die.
The invention has the advantages that: since the positioning component has a positioning effect on the pultrusion composite material, the gravity of the pultrusion composite material does not act on the elastic component, and for the elastic component, only the extrusion force from the pultrusion composite material is received, since the elastic component is deformed, and the deformation is changed according to the change of each part of the pultrusion composite material (for example, the tolerance of one end of the pultrusion composite material is different from that of the other end), therefore, the elastic component can adapt to the change of the pultrusion composite material, thereby not only ensuring the sealing performance between the elastic component and the pultrusion composite material, but also ensuring the uniformity of the obtained coating film.
Drawings
FIG. 1 is an assembly view of an in-line coating die of the present invention;
FIG. 2 is a cross-sectional view of an in-line coating die of the present invention;
FIG. 3 is a schematic view of a first cassette;
FIG. 4 is a schematic view of a positioning member;
FIG. 5 is a schematic view of an elastic member;
FIG. 6 is a schematic view of a first splint;
FIG. 7 is a schematic view of a second cassette;
FIG. 8 is a schematic view of a polyurethane pultrusion composite pultrusion line;
fig. 9 is an assembly view of the switching mechanism and the in-line coating die.
Detailed Description
Example 1
Referring to fig. 1 and 2, a pultrusion line 1 for a polyurethane composite material of the present invention includes a box 10 through which a pultruded composite material a passes, a positioning member 20 for limiting the deflection of the pultruded composite material passing through the box, an elastic member 30 for applying a uniform coating film to the pultruded composite material and sealing the coating liquid and elastically deforming when being subjected to a squeezing force, and an outer clamping plate 40, wherein the elastic member 30 is clamped between the outer clamping plate 40 and the positioning member 20. The positioning member 20 is located outside the cartridge body 10, the positioning member 20 is preferably disposed at an outlet portion of the cartridge body 10, and the elastic member 30 is located downstream of the positioning member 20, so that the elastic member 30 and the outer nip plate 40 are also located downstream of the outlet of the cartridge body 10, whereby the coating liquid chamber 10a is formed by the cartridge body 10 and the positioning member 20, the elastic member 30 and the outer nip plate 40. In order to further improve the positioning of the pultruded composite material a, a positioning member 20 is also disposed at the inlet portion of the case 10.
As shown in fig. 3, the case 10 is provided with an inlet 10b for the coating liquid, and the coating liquid disposed in the coating liquid container is injected into the coating liquid chamber 10a through the inlet 10 b. The case 10 is also provided with a discharge port 10c from which the coating liquid is returned to the coating liquid container, and therefore, the coating liquid circulates between the coating liquid container and the circulation case 10, which can prevent the coating liquid from condensing inside the case 10. Alternatively, a stirrer (see fig. 2) may be disposed at the bottom of the box 10, and a motor may be disposed outside the box to drive the stirrer, so as to prevent the coating solution from condensing in the box 10.
Referring to fig. 2 and 4, the positioning member 20 is a member for preventing the pultrusion composite material a passing through the on-line coating die from deflecting during movement, and the positioning member 20 preferably has a structure in which: the device comprises a closed or non-closed first frame-shaped component 21, a supporting component 22 and a second blocking arm 23 for controlling the deformation amount of an elastic component 30, wherein one end of the supporting component 22 is connected to the first frame-shaped component 21, and the other end of the supporting component 22 is a free end for supporting the pultrusion composite material A. One end of the second catch arm 23 is connected to the first frame-like member 21, the other end of the second catch arm 23 is a free end, and the second catch arm 23 is located downstream of the support member 22. The second blocking arm 23 is arranged offset from the support part 22, for example, one end of the second blocking arm 23 is not located on the same circumference or only partially located on the same circumference as one end of the support part 22.
As shown in fig. 2 and 4, the support member 22 is a protrusion protruding from the first frame-shaped member 21, the support member 22 is located in the inner hole of the first frame-shaped member 21, and one end of the support member 22 is connected to the inner hole wall of the first frame-shaped member 21. The support members 22 not only support the pultruded composite a, but also limit the deviation of the pultruded composite a along the traction direction due to the plurality of support members 22, thereby providing a guiding function for the pultruded composite a.
As shown in fig. 2 and 4, the positioning member 20, the elastic member 30 and the clamping plate 40 are exposed outside the case 10, which facilitates heat dissipation and facilitates installation, cleaning or replacement.
As shown in fig. 2 and 4, the number of the supporting members 22 is plural, whereby a space 24 is formed between two adjacent supporting members 22, and the space 24 allows the coating liquid to freely flow in the coating liquid chamber, so that the surface of the pultruded composite material a can still be impregnated with the coating liquid after passing through the supporting members 22.
Referring to fig. 2 and 5, the elastic member 30 applies a uniform coating film to the pultrusion composite material a, seals the coating liquid, and elastically deforms when being subjected to extrusion force, and a cavity 30a through which the pultrusion composite material a passes and which is matched with the cross section of the pultrusion composite material a is formed in the elastic member 30.
As shown in fig. 2 and 8, the pultruded composite material a pulled out from the pultrusion die C enters the coating liquid chamber 10a after being cooled (to a surface temperature of 30 to 90 ℃) by a cooling mechanism (not shown), the coating liquid is adhered to the surface of the pultruded composite material a, the pultruded composite material a does not deflect when moving in the axial direction under the action of the positioning component 20, when the pultruded composite material a passes through the cavity 30a, the pultruded composite material a generates an extrusion force on the elastic component 30, the elastic component 30 is elastically deformed under the extrusion force, so that a sealing structure is formed between the pultruded composite material a and the elastic component 30, and further the elastic component 30 scrapes the redundant coating liquid adhered to the surface of the pultruded composite material a, so that a uniform coating film is formed on the surface of the pultruded composite material a.
The material of the elastic component 30 is one of silica gel, rubber, soft PVC, and thermoplastic elastomer TPE/TPR, preferably silica gel, and the elastic component 30 made of silica gel can obtain coating films with different thicknesses by selecting the silica gel with different hardness, for example, the thickness of the coating film is controlled to a desired value of 35 to 45 μm. In addition, the thickness of the elastic member 30 is 0.5 to 5 mm.
As shown in fig. 2 and 5, the elastic component 30 includes an edge 31 and a deformation portion 32 that is elastically deformed by the pressure of the composite material a formed by tension extrusion, the cavity 30a is disposed on the deformation portion 32, a second yielding space B for the deformation of the deformation portion 32 is provided between the deformation portion 32 and the positioning component 20, and since the second blocking arm 23 is located at the downstream of the supporting component 22, a space between the supporting component 22 and the second blocking arm 23 is the second yielding space B. The elastic member 30 is prevented from being blocked by the positioning member 20 when elastically deformed by the second abdicating space B.
As shown in fig. 2 and 6, the outer clamping plate 40 is provided with a first relief space 42 through which the pultruded composite material passes. The outer clamping plate 40 includes a first clamping plate 41. The first clamping plate 41 is located on one side of the elastic component 30 and fixed with the elastic component 30, the positioning component 20 is located on the other side of the elastic component 30 and fixed with the elastic component 30, the elastic component 30 is preferably fixed with the first clamping plate 41 and the positioning component 20 by adopting an adhesive, and the adhesive is preferably a silica gel adhesive. The first clamping plate 41 is provided with a first abdicating hole forming a first abdicating space 42.
As shown in fig. 2 and 6, the first relief space 42 corresponds to the transformation 32. The pultrusion composite material a may give an axial acting force to the elastic member 30 by extrusion when passing through the elastic member 30, and therefore, the elastic member 30 may be deformed by the force in the axial direction, and thus, the first clamping plate 41 provides a first yielding space for the elastic member 30 to deform in the axial direction. Without the first relief space, the elastic member 30 cannot be deformed by the axial force, which results in failure to form a seal and failure to uniformly form a coating film.
As shown in fig. 2 and 6, the first clamping plate 41 includes a second frame-shaped member for clamping the edge 31 of the elastic member 30 and closing the second frame-shaped member, and at least one clamping portion 43 for limiting a gap between the pultrusion composite material a and the elastic member 30 when elastically deformed, wherein one end of the clamping portion 43 is connected to the second frame-shaped member 41, and the other end of the clamping portion 43 is a free end. The edge 31 of the elastic member 30 is sandwiched by the first clamping plate 41 and the edge of the first frame-like member 21.
Although the elastic member 30 is allowed to deform when the pultruded composite material a passes through the elastic member 30, the amount of deformation cannot be so large that a gap occurs between the pultruded composite material a and the elastic member 30, and thus the amount of deformation of the deformation portion 32 can be limited by the clamping action of the clamping portion 43 and the second stopper arm 23 on a portion of the deformation portion 32. The number of the gripping portions 43 is determined according to the shape of the pultruded composite material a.
After the elastic member 30 is adhesively fixed to the outer clamping plate, the outer clamping plate is connected to the positioning member 20 and the case 10 by bolts. The outer peripheral surfaces of the case 10, the positioning member 20, and the second frame-like member are provided with mounting holes through which bolts are inserted.
The in-line coating die further includes a sealing assembly 50 through which the pultrusion composite passes, the sealing assembly 50 being disposed at the entrance of the case body 10. The structure of the sealing assembly 50 is the same as that of the elastic member 30 and the outer clamping plate 40, and thus, a detailed description thereof is omitted. The function of this seal assembly 50 differs from the prior art: since the positioning member 20 forms a support for the pultrusion composite material a, the gravity of the pultrusion composite material a does not act on the sealing assembly 50, so that the sealability can be ensured.
Example 2
As shown in fig. 7, the positioning member 20 is provided inside the case 10, the positioning member 20 is integrally formed with the case 10, and the positioning member 20 is preferably a plurality of projections. Since the positioning member 20 is located inside the case 10, the elastic member 30 and the outer clamp 40 are still disposed outside the case 10, and the outer clamp 40 is coupled to the case 10.
When the positioning component 20 is disposed inside the box body, a first blocking arm 10d for controlling the deformation amount of the elastic component, a first blocking arm 10d, and a first blocking arm 10d are preferably disposed on the inner wall of the box body 10, and the first blocking arm 10d is located near the outlet of the box body 10. With this structure, the edge 31 of the elastic member 30 is held between the edge of the first clamping plate 41 and the axial end face of the case 10, and a part of the deformation portion 32 is held between the holding portion 43 and the first stopper arm 10 d.
Example 3
The positioning member 20 is a combination of embodiment 1 and embodiment 2, that is, a part of the positioning member 20 is provided outside the case 10 as in embodiment 1, and the other part of the positioning member 20 is provided inside the case 10 as in embodiment 2. With this structure, a part of the deforming part 32 is held by the second stopper arm 23 of the holding part 44 without providing the first stopper arm 10d in the case 1.
The second frame-like member may be in a non-closed state, and for example, the second frame-like member of example 1 described above may be notched.
In addition, generally, the pultrusion die C is used for pultrusion of polyurethane composite material, and the pultruded composite material a after being formed is cooled by a cooling mechanism located at the downstream of the pultrusion die C, as shown in fig. 8, on the basis of the above-mentioned embodiments, when the on-line coating apparatus 1 is applied to a pultrusion production line of polyurethane composite material, each on-line coating die 1 is connected with one switching mechanism 3 to form an on-line coating unit 2, wherein each switching mechanism 3 is connected with the machine frame 60, and each on-line coating unit 2 in this embodiment comprises two on-line coating dies 1 and two switching mechanisms 3, wherein one on-line coating die 1 is switched to a working station, and the other on-line coating die 1 is switched to a standby or maintenance station. Of course, it is also possible to switch two in-line coating apparatuses 1 to the work station simultaneously.
A plurality of different online coating units 2 can be arranged on a polyurethane composite material pultrusion production line, when pultrusion composite materials A with different pultrusion section shapes are formed, the online coating units 2 which need to work can be switched to working stations through a switching mechanism 3, and other online coating units 2 which do not need to work are switched to standby or overhaul stations. Each of the on-line coating units 2 is applicable to the pultruded composite materials a having different sectional shapes, so that the pultruded composite materials a having different sectional shapes can be coated on the same pultrusion line.
The switching mechanism 3 may adopt linear actuators such as an air cylinder and a hydraulic cylinder, but these actuators need to be connected with corresponding air sources or liquid sources to supply, and work together with components such as a controller and an electromagnetic valve, so that the cost is high, and therefore, the switching mechanism 3 in the present invention preferably adopts the following structure:
as shown in fig. 9, the switching mechanism includes a mounting bracket 61, a guide seat 62, a connecting bracket 63, a lifting rod 64, a limiting seat 65, a switching control mechanism 66, a spring 67, and a cam 68, the mounting bracket 61 is fixed to the frame 60, the guide seat 62 is disposed at one end of the mounting bracket 61, a connecting assembly is disposed at the other end of the mounting bracket 61, and a channel for the lifting rod 64 to pass through is disposed on the guide seat 62.
One end of the lifting rod 64 penetrates through a channel on the guide seat 62 to be fixed with the connecting frame 63, the connecting frame 63 is U-shaped, after two or three screw holes on the online coating die 1 are assembled by bolts, a hole is left without installing the bolt, the assembled online coating die 1 is placed into the connecting frame 63, the online coating die 1 is connected with the connecting frame 63 by penetrating the connecting frame 63 and the online coating die 1 through the bolts, wherein in order to avoid the rotation of the online coating die 1 around the bolts, the cross section of the middle part of the bolts is arranged to be a polygonal structure, and the shape of the holes on the online coating die 1 is matched with the shape of the bolts.
The other end of lifter 64 passes coupling assembling, and coupling assembling includes connecting seat 61a, external thread bush 61b, nut 61c, and external thread bush 61b passes connecting seat 61a, and nut 61c and external thread bush 61b threaded connection, nut 61c are fixed with connecting seat 61a, the other end and the external thread bush 61b clearance fit of lifter 64. The limiting seat 65 is fixedly connected with the lifting rod 64, and one end of the limiting seat 65 is provided with a rod-shaped part 65 a. One end of the spring 67 is abutted to the limiting seat 65, the other end of the spring 67 is abutted to the connecting assembly, preferably, the other end of the spring 67 is abutted to the external thread sleeve 61b, and the pretightening force of the spring 67 can be adjusted through the external thread sleeve 61 b.
The switching operation mechanism 66 is pivotally connected to the mounting bracket 61, the cam 68 is fixed to the switching operation mechanism 66, and the cam 68 is engaged with the rod member 65a to hold the spring 67 and the stopper 65 in abutment with the connecting member. The switching operation mechanism 66 is composed of an operation handle and a rotating shaft, the handle is fixed with the rotating shaft, the rotating shaft is pivotally connected with the mounting frame 61 through a bearing, and the cam 68 is fixed with the rotating shaft.
The switching mechanism further comprises a guide part 69 and a guide rod 70, one end of the guide part 69 is connected with the guide seat 62, a guide hole or a guide groove is formed in the guide part 69, one end of the guide rod 70 is fixed with the limiting seat 65, and the other end of the guide rod 70 is in clearance fit with the guide hole or the guide groove.
The online coating die comprises a lifting rod 64, a connecting frame 63 and two fine adjustment nuts 71, wherein the lifting rod 64 is connected with the fine adjustment nuts 71 in a threaded mode, the connecting frame 71 is clamped between the two fine adjustment nuts 71, and the height of the online coating die 1 can be finely adjusted through the fine adjustment nuts 71.
As shown in fig. 8 and 9, when the online coating die 1 needs to be switched between the working state and the standby or maintenance state, the switching operation mechanism 66 is rotated to rotate the cam 68 along with the switching operation mechanism 66, the cam 68 transmits power to the rod-shaped member 65a, the rod-shaped member 65a transmits the power to the limiting seat 65, the limiting seat 65 overcomes the elastic force of the spring 67 to move the lifting rod 64 upward or downward, and the lifting rod 64 drives the connecting frame 63 and the online coating die 1 to move upward or downward, so that the purpose of driving the position switching of the online coating die 1 is achieved.
Claims (6)
1. Polyurethane composite pultrusion production line, including the pultrusion mould that is used for polyurethane composite pultrusion, be located the cooling body of pultrusion mould low reaches, its characterized in that still includes a coating unit at least, and the coating unit includes:
the on-line coating die is used for coating the pultrusion composite material on line, and the on-line coating die limits the pultrusion composite material penetrating through the box body to generate deflection and seals the pultrusion composite material when a uniform coating film is applied to the pultrusion composite material;
the switching mechanism drives the online coating die to be positioned at a working or non-working station, and the switching mechanism is fixed with the online coating die;
switching mechanism includes the mounting bracket, the guide holder, the link, the lifter, spacing seat, switch operating mechanism, a spring, the cam, the guide holder sets up in the one end of mounting bracket, the other end at the mounting bracket is equipped with coupling assembling, be equipped with the passageway that supplies the lifter to pass on the guide holder, the passageway that the one end of lifter passed on the guide holder is fixed with the link, coupling assembling is passed to the other end of lifter, the one end and the spacing butt of spring, the other end and the coupling assembling butt of spring, spacing seat and lifter fixed connection, the one end of spacing seat is equipped with shaft-like part, switch operating mechanism and mounting bracket pivot connection, the cam is fixed with switching operating mechanism, the cam keeps the butt with shaft-like part cooperation so that spring and spacing seat and coupling assembling.
2. The pultrusion production line for polyurethane composite materials as claimed in claim 1, wherein the connecting assembly comprises a connecting seat, an external thread sleeve and a nut, the external thread sleeve passes through the connecting seat, the nut is in threaded connection with the external thread sleeve, the nut is fixed with the connecting seat, and the other end of the lifting rod is in clearance fit with the external thread sleeve.
3. The pultrusion line for polyurethane composite material according to claim 2, characterized in that the other end of the spring abuts against the male screw housing.
4. The pultrusion production line of polyurethane composite material according to claim 1, characterized in that the switching mechanism further comprises a guide part and a guide rod, one end of the guide part is connected with the guide seat, the guide part is provided with a guide hole or a guide groove, one end of the guide rod is fixed with the limiting seat, and the other end of the guide rod is in clearance fit with the guide hole or the guide groove.
5. The pultrusion line for polyurethane composite material according to claim 1, wherein the switching mechanism further includes two fine adjustment nuts, the fine adjustment nuts are threadedly coupled with the lifting rods, and the connecting frame is clamped between the two fine adjustment nuts.
6. The pultrusion line for polyurethane composite material according to claim 1, characterized in that the on-line coating die includes:
a box body for the pultrusion composite material to pass through;
a positioning member for limiting the deviation of the pultruded composite material passing through the box body;
the elastic component is used for applying a uniform coating film to the pultrusion composite material, sealing the coating liquid and generating elastic deformation when being extruded, a cavity for the pultrusion composite material to pass through and matched with the section of the pultrusion composite material is arranged on the elastic component, and the elastic component is positioned at the downstream of the positioning component;
the outer clamping plate is provided with a first abdicating space for the pultrusion composite material to pass through;
the positioning component is arranged inside and/or outside the box body, and the elastic component is clamped between the outer clamping plate and the positioning component or the box body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148905.9A CN111300847B (en) | 2020-03-05 | 2020-03-05 | Pultrusion production line for polyurethane composite material |
| DE202020102215.6U DE202020102215U1 (en) | 2020-03-05 | 2020-04-21 | Pultrusion manufacturing line for a polyurethane composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148905.9A CN111300847B (en) | 2020-03-05 | 2020-03-05 | Pultrusion production line for polyurethane composite material |
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| Publication Number | Publication Date |
|---|---|
| CN111300847A CN111300847A (en) | 2020-06-19 |
| CN111300847B true CN111300847B (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010148905.9A Active CN111300847B (en) | 2020-03-05 | 2020-03-05 | Pultrusion production line for polyurethane composite material |
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| Country | Link |
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| CN (1) | CN111300847B (en) |
| DE (1) | DE202020102215U1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116476411B (en) * | 2023-04-20 | 2024-02-09 | 山东基舜节能建材有限公司 | Extruding and pulling equipment for polyurethane carbon glass mixed pulling plate |
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| US4532151A (en) * | 1982-06-18 | 1985-07-30 | Hep Products Ab | Method for coating a surface with a layer |
| WO2004048696A1 (en) * | 2002-11-25 | 2004-06-10 | Edilon B.V. | Rail construction having a coating structure |
| JP2017044951A (en) * | 2015-08-28 | 2017-03-02 | 昭和電線ケーブルシステム株式会社 | Optical cable and method and apparatus for manufacturing the same |
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| Publication number | Publication date |
|---|---|
| CN111300847A (en) | 2020-06-19 |
| DE202020102215U1 (en) | 2020-05-19 |
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