CN209888207U - Thermoplastic continuous fiber pultrusion heating forming die and device using same - Google Patents

Abstract

The utility model discloses a thermoplastic continuous fiber pultrusion heating forming die and a device using the same, which are applied to the field of continuous fiber thermoplastic forming dies and solve the technical problem that the die can only be used for heating and leads to single function; the mould has the technical effects that the mould has two functions of heating and cooling, so that the product is immediately cooled and shaped after being heated and formed, and the product is shrunk and demoulded and has a smooth surface.

Description

Thermoplastic continuous fiber pultrusion heating forming die and device using same

Technical Field

The utility model relates to a forming die field is moulded to continuous fibers heat, and more specifically says, it relates to a device of thermoplasticity continuous fibers pultrusion heat forming die and applied this mould.

Background

The thermoplastic molding is to heat and melt the plastic raw material in a mold to form a whole, and then the plastic raw material is cooled and shaped to form the section. The plastic raw materials comprise fibers, the fibers are in thread form, a plurality of groups of fibers are combined into one group, the fibers enter the die body and are subjected to thermoplastic molding through continuous fibers to form the sectional materials, the fibers are in thread form, so that the sectional materials can be continuously processed, and the continuous fibers form the sectional materials with different lengths after being molded in the die body.

At present, chinese patent No. CN202685205U discloses an integral molding mold for thermoplastic and fiber material, which comprises an upper mold, the lower mould, the lower terminal surface of going up the mould is equipped with a plurality of shaping archs that are parallel to each other, the concave a plurality of shaping recesses that are equipped with of up end of lower mould, shaping arch and shaping recess one-to-one and mutual matching, set up the runner that is used for the drainage thermoplastic respectively on every shaping arch, the runner runs through last mould, the top of going up the mould is equipped with the injection molding machine, injection molding machine and runner intercommunication, the up end of lower mould still is equipped with a plurality of fixed columns that are used for fixed fiber material, the lower terminal surface of going up the mould still is equipped with the constant head tank that corresponds with the fixed column, the fixed column can imbed in the constant head tank, a plurality of fixed columns are located a plurality of shaping recess's the outside, leave the clearance between shaping arch and the shaping.

This kind of thermoplastic and fiber material integrated into one piece mould is through heating plastics to make the plastics melting, when the product flows out from between last mould and the lower mould, need be being finalized the design through cooling this moment, and above-mentioned mould only can be used for heating, makes the plastics melting shaping, can not directly generate the product, consequently need design one kind can enough heat plastics and can be to the refrigerated mould of plastics again.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a thermoplasticity continuous fibers pultrusion heat-forming die, its advantage has heating and two kinds of functions of cooling for cool off immediately after the product heat-forming and stereotype and handle, thereby make the product shrink drawing of patterns and the surface smooth.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a thermoplasticity continuous fibers machine-shaping mould, includes mould and lower mould, the below of lower mould is equipped with the support, the lower mould includes heating section and cooling zone, be equipped with the high frequency resistance wire in the inner wall of heating section, be equipped with spiral helicine cooling circuit that is used for logical cooling water in the inner wall of cooling zone, be equipped with high-speed circulating pump on the support.

Through above-mentioned technical scheme, the resistance wire is used for the heating, and cooling circuit is used for logical water, and the support is used for supporting mould and lower mould. When the fiber is heated, the high-frequency resistance wire can be quickly heated, so that the fiber is quickly melted; the high-speed circulating pump is used for enabling cooling water to flow rapidly, so that after the fibers are melted into products, cooling shrinkage can be achieved rapidly, the fibers are separated from the molds, and the surfaces of the products after demolding are smooth. Above-mentioned setting for the mould has dual function, thereby makes the raw materials through the processing back of mould, can directly become the product, reduces independent refrigerated step, simultaneously because the product has high temperature to low temperature in the twinkling of an eye, has guaranteed product surface smoothness.

The utility model discloses further set up to: follow on the lower mould the length direction of lower mould is equipped with the bar groove, the bar groove can be dismantled and be fixed with the box body, the cross-section of box body with the cross-section in bar groove is isosceles trapezoid, the one-tenth die cavity has been seted up along the axial direction of box body in the box body, the both ends of lower mould are equipped with the constant head tank, the both ends of box body are equipped with flange, flange inlays to be established in the constant head tank.

Through the technical scheme, the cavity is formed in the box body along the length of the box body, and the section of the cavity is the same as that of a product. The box body is inserted on the lower die, so that the box body can be detached from the lower die, when products of different models need to be produced, the box body is detached from the lower die, the required box body is replaced, profiles of different shapes can be produced, and therefore the profiles of different models can be produced by one set of die, and the cost of an enterprise is saved. The positioning flange is larger than the box body, so that the displacement of the box body in the horizontal direction is limited, and meanwhile, the positioning flange can facilitate the quick assembly of the box body on the lower die. The cross-section in box body and bar groove becomes isosceles trapezoid to the degree of depth that the box body was in vertical direction cooperation in the bar groove is darker, and the box body is inseparabler with the lateral wall complex in bar groove more, in the heat transfer, makes the box body heat up soon.

The utility model discloses further set up to: be equipped with on the support and be used for the drive go up the drive assembly that the mould opened and shut, drive assembly rotates respectively at L shape frame, both ends on the lower mould lateral wall and connects the pneumatic cylinder of connection on L shape frame including rotating, the piston rod of pneumatic cylinder rotates to be connected the horizontal end of L shape frame, the vertical end of L shape frame passes through the bolt fastening and is in go up on the mould.

Through above-mentioned technical scheme, because the box body just can be taken out vertically upwards, drive assembly is used for driving and goes up the mould and rotate for go up the mould and open the back, the upper surface exposes, can not block the rebound of box body. When a piston rod of the hydraulic cylinder contracts, the L-shaped frame is pulled to rotate at the moment, and the upper die and the L-shaped frame are further rotated together. The setting up of pneumatic cylinder makes the mould of going up can open automatically, practices thrift the manpower.

The utility model discloses further set up to: the positioning flange protrudes outwards along the length direction of the lower die, a jack is arranged below the positioning flange, a top plate is horizontally arranged on a piston rod of the jack, and the top plate is located on the lower surface of the positioning flange.

Through above-mentioned technical scheme, the jack is used for automatic ejecting box body, and the roof is used for increasing the area of contact between jack and the box body for the box body can be stable upwards shift up.

The utility model discloses further set up to: go up the mould with keep away from on the lower mould drive assembly's one end all extends two lugs along the level outwards, the lug is located respectively go up the mould with the both ends of lower mould, be equipped with coaxial through-hole along vertical direction on the lug.

Through above-mentioned technical scheme, the through-hole is used for wearing to penetrate the bolt, and the bolt is used for locking two lugs to make and go up the firm connection of mould and lower mould together. And a gap is prevented between the upper die and the lower die, so that hot air in the heating section is diffused from the gap.

The utility model discloses further set up to: the heating section with be equipped with heat insulation section between the cooling zone, the heating section with it is equipped with flange to set up between the cooling zone, the last a plurality of connecting holes that are equipped with of flange, be equipped with in the connecting hole and wear to be equipped with the bolt.

Through above-mentioned technical scheme, the heating section makes fibre melt shaping, and the cooling zone cools down fast for the section bar receives cold rapid cooling and contracts, thereby the box body drawing of patterns, and the surface of guaranteeing the section bar is smooth. The heat insulation section prevents the heat conduction of the heating section to the cooling section, thereby ensuring that the temperature difference between the heating section and the cooling section is large and ensuring the cooling effect and the demoulding effect.

The utility model discloses further set up to: the heating section is sequentially provided with a protective layer, a heat insulation layer and a heating layer from outside to inside, and the resistance wire is embedded in the heating layer.

Through above-mentioned technical scheme, because the temperature of heating section is high, scald the staff easily, the insulating layer plays heat preservation and thermal-insulated function, prevents that the heat of heating section from giving out.

The utility model discloses further set up to: the middle section of the box body is provided with an annular groove.

Through the technical scheme, the part of the box body in the heating section is separated from the part of the box body in the cooling section through the arrangement of the ring grooves, so that the contact area of the two parts is reduced, and the heat transfer is reduced.

A second object of the utility model is to provide a device of thermoplasticity continuous fibers pultrusion thermal forming mould and applied this mould, its advantage is, a mould has two kinds of functions to reduce refrigerated equipment, further reduce the shared space volume of thermoplasticity continuous fibers pultrusion equipment production line, guarantee the quality of product simultaneously.

The above technical purpose of the present invention can be achieved by the following technical solutions: the thermoplastic continuous fiber pultrusion heating forming die comprises a creel, a yarn collector and a tractor which are sequentially connected, wherein the thermoplastic continuous fiber pultrusion heating forming die is arranged between the yarn collector and the tractor.

Through the technical scheme, one die has two functions, so that cooling equipment is reduced, the occupied space volume of a production line of thermoplastic continuous fiber heating pultrusion equipment is further reduced, and the quality of a product is ensured.

The utility model discloses further set up to: and a preheating device is arranged at one end of the mold close to the yarn collector.

Through above-mentioned technical scheme, preheating device is used for letting continuous fibers preheat earlier and heaies up, and subsequent rapid heating up in the mould of being convenient for guarantees the temperature of setting for that continuous fibers can rise, the melt-forming of being convenient for.

To sum up, the utility model discloses following beneficial effect has:

1. the box body is detachably connected to the lower die, so that the same set of upper die and lower die can be used for processing different types of profiles;

2. the arrangement of the heat insulation section ensures that the temperature difference between the heating section and the cooling section is large, and the cooling effect and the integrity of the surface of the demoulded section bar are ensured

3. Meanwhile, the produced section is convenient to recycle and accords with the theme of environmental protection.

Drawings

Fig. 1 is a schematic view of the entire structure of embodiment 1.

Fig. 2 is a schematic structural view of the cartridge and the strip-shaped groove of the present embodiment 1.

Fig. 3 is a sectional view a-a in fig. 1.

Fig. 4 is a sectional view taken along line B-B in fig. 1.

Fig. 5 is a schematic structural diagram of the driving assembly of the present embodiment 1.

Fig. 6 is an enlarged view at C in fig. 5.

Fig. 7 is a schematic view of the entire structure of embodiment 2.

Reference numerals: 1. an upper die; 2. a lower die; 21. a strip-shaped groove; 22. positioning a groove; 23. a bump; 24. a through hole; 3. a box body; 31. a cavity; 32. positioning the flange; 33. a ring groove; 4. a jack; 41. a top plate; 5. a heating section; 51. a protective layer; 52. a thermal insulation layer; 53. a heating layer; 54. a resistance wire; 55. a plug; 56. a connecting flange; 57. connecting holes; 6. a cooling section; 61. a high-speed circulation pump; 62. a water tank; 63. a cooling circuit; 7. a heat insulation section; 8. a drive assembly; 81. a hydraulic cylinder; 82. an L-shaped frame; 9. a support; 10. a creel; 11. a mold; 12. a tractor; 13. a bundling box; 14. a preheating device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: referring to fig. 1 and 2, a thermoplastic continuous fiber pultrusion and heating forming die comprises an upper die 1 and a lower die 2, wherein the lower die 2 comprises a heating section 5 and a cooling section 6, a box body 3 is detachably mounted in the lower die 2, a cavity 31 is arranged in the box body 3 along the length direction of the box body 3, and the shape of the cross section of the cavity 31 is similar to the shape of the cross section of a product. The fiber passes through the cavity 31, is heated by the heating section 5 to be fused into the shape of a product, and is cooled by the cooling section 6 to be rapidly contracted after being cooled, separated from the inner wall of the cavity 31 and ensure the smoothness of the surface of the product.

Referring to fig. 1 and 2, a strip groove 21 is provided on the lower mold 2 along the length direction of the lower mold 2, and the cartridge 3 is mounted in the strip groove 21. Set up constant head tank 22 at the both ends of lower mould 2, set up flange 32 at the both ends of box body 3, flange 32 cooperation is in constant head tank 22, and flange 32 is integrative with box body 3, and flange 32 prevents the removal of the length direction of box body 3 along box body 3. Locating flange 32 is outwards outstanding and surpasss lower mould 2 along the horizontal direction, sets up jack 4 in locating flange 32's below, and jack 4 has two, is located the both sides of lower mould 2 respectively, and jack 4 is used for jack-up box body 3 for box body 3 breaks away from lower mould 2, thereby is convenient for change box body 3. The piston rod of the jack 4 is horizontally provided with a top plate 41, and the top plate 41 is used for increasing the distance between the top plate 41 and the positioning flange 32, so that the box body 3 can stably ascend when the jack 4 works.

Referring to fig. 3, the heating section 5 is sequentially provided with a protective layer 51, a heat insulation layer 52 and a heating layer 53 from outside to inside, the heating layer 53 is provided with a resistance wire 54, the heating section 5 is provided with a plug 55, the plug 55 is electrically connected with the resistance wire 54, an external power supply can be connected through the plug 55, and therefore the box body 3 is heated through the resistance wire 54. The material of insulating layer 52 is fire clay, and insulating layer 52 plays heat retaining effect to box body 3, prevents simultaneously that protective layer 51 from being heated and scalding the staff, and protective layer 51's material is metallic iron.

Referring to fig. 4, a spiral cooling circuit 63 is provided in the inner wall of the cooling stage 6, and the cooling circuit 63 is used for water passage. Set up water tank 62 and high-speed circulation pump 61 on support 9, lead to pipe formation closed return circuit between cooling circuit 63, water tank 62, the high-speed circulation pump 61, under high-speed circulation pump 61's drive, the quick flow of cooling water to make the short time cooling water can take away more heats on the box body 3, make the cooling effect better.

Referring to fig. 2, the cross-section of box body 3 and bar groove 21 is isosceles trapezoid, and the depth of box body 3 in vertical direction cooperation in bar groove 21 is darker, and box body 3 is inseparabler with the lateral wall complex in bar groove 21, and in the time of heat transfer, the lost heat that falls is less for box body 3 can rapid heating up.

Referring to fig. 2, set up thermal-insulated section 7 between heating section 5 and cooling section 6, thermal-insulated section 7 prevents that the heat of heating section 5 from conducting to cooling section 6 to it is big to ensure the difference in temperature between heating section 5 and the cooling section 6, guarantees the effect of refrigerated effect and drawing of patterns, and the material of thermal-insulated section 7 is high temperature resistant thermal-insulated cotton. A connecting flange 56 is arranged at the butt joint position of the heating section 5 and the cooling section 6, a plurality of connecting holes 57 are arranged on the connecting flange 56 along the vertical direction, bolts penetrate through the connecting holes 57 and are locked by nuts, so that the cooling section 6 and the heating section 5 are tightly connected together, and meanwhile, the heat insulation section 7 is tightly clamped in the middle.

Referring to fig. 2, a ring groove 33 is formed in the middle of the box body 3 and corresponding to the heat insulation section 7, two sides of the ring groove 33 correspond to the heating section 5 and the cooling section 6, respectively, and the arrangement of the ring groove 33 reduces the contact area of the box body 3 at two ends of the ring groove 33, thereby reducing the heat transfer and ensuring a large temperature difference between two sides of the ring groove 33.

Referring to fig. 5 and 6, a driving assembly 8 is provided on the support 9, and the driving assembly 8 is used for driving the upper mold 1 to be automatically opened. Drive assembly 8 includes L shape frame 82, rotates the pneumatic cylinder 81 of connecting in L shape frame 82 one end, and the other end of pneumatic cylinder 81 rotates to be connected on support 9, and the inflection point department of L shape frame 82 rotates to be connected on lower mould 2, and the vertical end of L shape frame 82 passes through the bolt fastening on last mould 1. When the piston rod of the hydraulic cylinder 81 contracts, the L-shaped frame 82 rotates at the moment, and the upper die 1 is driven to overturn. After the upper mold 1 is opened, the upper surface of the lower mold 2 is exposed so as not to block the upward movement of the box body 3. The number of the driving components 8 is two, and two ends of the bracket 9 are respectively arranged.

Referring to fig. 1, bar-shaped protrusions 23 are provided on both the upper mold 1 and the lower mold 2, the protrusions 23 extend in a horizontal direction, through holes 24 are provided in the protrusions 23, and after the upper mold 1 and the lower mold 2 are closed, bolts are inserted through the through holes 24 to fixedly connect the upper mold 1 and the lower mold 2. Thereby prevent to go up and produce the clearance between mould 1 and the lower mould 2, lead to thermal giving off, scald the staff.

The action process is as follows: firstly, drawing the fibers into a box body 3, and melting the fibers by a heating section 5 to form a formed section; the product is rapidly shrunk and separated from the box body 3 through the rapid cooling of the cooling section 6, and the production process of melting, cooling and shaping is completed. When different shapes of products need to be produced, the corresponding box 3 is replaced.

Embodiment 2, a thermoplastic continuous fiber pultrusion heating forming die and a device applying the die comprise a creel 10, a die 11 and a tractor 12, wherein a yarn collector 13 is arranged between the die 11 and the creel 10, and the yarn collector 13 is used for collecting fiber silk yarns together. The creel 10 is used for coiling fiber threads, the fiber threads are constrained by the yarn collector 13, enter the die 11 for heating and forming, and are cooled in the die 11, and the traction machine 12 is used for continuously pulling products out of the die 11. A preheating device 14 is arranged on one side of the die 11 close to the creel 10, a preheating cavity (not shown in the figure) is formed in the preheating device 14 along the length direction of the preheating device, continuous fibers penetrate through the preheating cavity and enter the die 12, and the vertical section of the preheating cavity is sheet-shaped, tubular, special-shaped and the like and is set according to the actual condition of the market; a resistance wire (not shown in the figure) is embedded in the preheating device and connected with an external power supply, the resistance wire generates heat to transfer heat to the continuous fibers, so that the continuous fibers are preheated first, and the rapid heating and melting in the die 11 are facilitated.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a thermoplasticity continuous fibers pultrusion heating forming die, includes mould (1) and lower mould (2), the below of lower mould (2) is equipped with support (9), its characterized in that, lower mould (2) are including heating section (5) and cooling zone (6), be equipped with high frequency resistance wire (54) in the inner wall of heating section (5), be equipped with spiral helicine cooling circuit (63) that are used for logical cooling water in the inner wall of cooling zone (6), be equipped with high-speed circulating pump (61) on support (9).

2. The pultrusion and heating forming die for the thermoplastic continuous fibers as claimed in claim 1, wherein a strip-shaped groove (21) is formed in the lower die (2) along the length direction of the lower die (2), a box body (3) is detachably fixed to the strip-shaped groove (21), the cross section of the box body (3) and the cross section of the strip-shaped groove (21) are isosceles trapezoids, a forming cavity (31) is formed in the box body (3) along the axial direction of the box body (3), positioning grooves (22) are formed in two ends of the lower die (2), positioning flanges (32) are arranged at two ends of the box body (3), and the positioning flanges (32) are embedded in the positioning grooves (22).

3. The thermoplastic continuous fiber pultrusion heating forming die as claimed in claim 2, wherein a driving assembly (8) for driving the upper die (1) to open and close is arranged on the support (9), the driving assembly (8) comprises an L-shaped frame (82) rotatably connected to the side wall of the lower die (2), and a hydraulic cylinder (81) with two ends rotatably connected to the L-shaped frame (82) respectively, a piston rod of the hydraulic cylinder (81) is rotatably connected to a horizontal end of the L-shaped frame (82), and a vertical end of the L-shaped frame (82) is fixed to the upper die (1) through a bolt.

4. The thermoplastic continuous fiber pultrusion heating forming die as claimed in claim 3, wherein the locating flange (32) protrudes outwards along the length direction of the lower die (2), a jack (4) is arranged below the locating flange (32), a top plate (41) is horizontally arranged on a piston rod of the jack (4), and the top plate (41) is located on the lower surface of the locating flange (32).

5. The pultrusion and heating die for thermoplastic continuous fibers as claimed in claim 4, characterized in that the ends of the upper die (1) and the lower die (2) far away from the driving assembly (8) extend outwards in the horizontal direction by two projections (23), the projections (23) are respectively arranged at the two ends of the upper die (1) and the lower die (2), and coaxial through holes (24) are vertically arranged on the projections (23).

6. The pultrusion and heating forming die for the thermoplastic continuous fibers as claimed in claim 1, wherein a heat insulation section (7) is arranged between the heating section (5) and the cooling section (6), a connecting flange (56) is arranged between the heating section (5) and the cooling section (6), a plurality of connecting holes (57) are formed in the connecting flange (56), and bolts are arranged in the connecting holes (57) in a penetrating manner.

7. The pultrusion and heating forming die for the thermoplastic continuous fibers as claimed in claim 6, wherein the heating section (5) is sequentially provided with a protective layer (51), a heat insulation layer (52) and a heating layer (53) from outside to inside, and the resistance wire (54) is embedded in the heating layer (53).

8. The pultrusion and heating die for thermoplastic continuous fibers as claimed in claim 2, characterized in that the middle section of the box body (3) is provided with an annular groove (33).

9. A thermoplastic continuous fiber pultrusion and heating forming die and a device applying the same, comprising a creel (10), a yarn collector (13) and a tractor (12) which are connected in sequence, and is characterized in that the thermoplastic continuous fiber processing and forming die (11) as claimed in any one of claims 1 to 8 is arranged between the yarn collector (13) and the tractor (12).

10. The pultrusion continuous fiber molding die and the device applying the same as claimed in claim 9, characterized in that a preheating device (14) is provided at one end of the die (11) near the creel (10).

Images