CN113043568B - Prepreg hot-melting infiltration mold - Google Patents

Prepreg hot-melting infiltration mold Download PDF

Info

Publication number
CN113043568B
CN113043568B CN201911368683.5A CN201911368683A CN113043568B CN 113043568 B CN113043568 B CN 113043568B CN 201911368683 A CN201911368683 A CN 201911368683A CN 113043568 B CN113043568 B CN 113043568B
Authority
CN
China
Prior art keywords
mold
plate
infiltration
prepreg
mould
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911368683.5A
Other languages
Chinese (zh)
Other versions
CN113043568A (en
Inventor
张洪生
刘�东
祝颖丹
陈刚
颜春
史鹏程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Institute of Material Technology and Engineering of CAS
Original Assignee
Ningbo Institute of Material Technology and Engineering of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Institute of Material Technology and Engineering of CAS filed Critical Ningbo Institute of Material Technology and Engineering of CAS
Priority to CN201911368683.5A priority Critical patent/CN113043568B/en
Publication of CN113043568A publication Critical patent/CN113043568A/en
Application granted granted Critical
Publication of CN113043568B publication Critical patent/CN113043568B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/272—Cleaning; Purging; Avoiding contamination of dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating

Abstract

The invention discloses a prepreg hot-melting infiltration mould, which comprises a temperature control element, an infiltration mould, a preheating mould arranged at the inlet side of the infiltration mould, and a transition die lip arranged at the outlet side of the infiltration mould and used for insulating prepreg; the infiltration mould comprises an upper mould plate and a lower mould plate which are matched up and down, the opposite surfaces of the upper mould plate and the lower mould plate are corrugated surfaces, bosses are respectively arranged on two sides of the lower mould plate parallel to the inlet and outlet direction, a plurality of vertical grooves are arranged on the inner side walls of the bosses, the length of each vertical groove is equal to the height of each boss, and convex parts matched with the vertical grooves are respectively arranged on two sides of the upper mould plate parallel to the inlet and outlet direction; the preheating mould comprises two corrugated heating templates which are matched up and down; the transition die lip comprises two die lips which are matched up and down.

Description

Prepreg hot-melting infiltration mold
Technical Field
The invention relates to the technical field of molds, in particular to a prepreg hot-melting infiltration mold.
Background
The production mould of the continuous fiber polymer-based resin-based prepreg tape has the following problems: most of tension rollers in the existing die are fixed rollers, and carbon fibers are easy to fuzz due to abrasion during production, so that the quality of a prepreg tape is affected; the solution of the prepreg tape is embedded into the fiber and broken in the production process, so that the production continuity is influenced; the existing integrated die is only distinguished by temperature control, and the temperature of an affected area is correctly controlled and exhaust gas is generated to be discharged.
For example, patent specification No. CN 106113317 a discloses a mold for preparing a continuous carbon fiber melt-impregnated thermoplastic polymer prepreg tape, comprising an upper mold and a lower mold, wherein the upper end is provided with an upper mold bottom plate, the lower end of the lower mold is provided with a lower mold bottom plate, a melt pool is formed between the upper mold and the lower mold, the opposite surfaces of the upper mold and the lower mold are mutually matched curved surfaces, three power roller pairs are respectively arranged in the upper mold and the lower mold in a front-back rotating manner at intervals, the outer circumferential surface part of each power roller pair extends into the melt pool, a tension roller is arranged in the upper mold in a rotating manner and between two adjacent power roller pairs, the outer circumferential surface part of each tension roller is arranged in the melt pool, the power roller pairs are driven by a power device, the two ends of the power roller pairs in the upper mold are rotationally fixed on a fine adjustment mechanism, the lower end of the upper mold bottom plate is provided with a plurality of heating plates arranged in the upper mold, the lower mold bottom plate is provided with a plurality of heating plates arranged in the lower mold, a melt inlet pipe is arranged below the upper die on the rear side of the power roller pair positioned at the front end. According to the single-mode impregnation device, the power roller pair has a yarn sticking effect on the sticky prepreg, and fluffing is easy to occur.
For another example, patent specification CN 208914375U discloses a die for producing continuous fiber reinforced thermoplastic prepreg tape, which adopts a hot-melt method extruder extrusion process, and because of the tension of yarn, the fiber of the rim charge is not limited, the rim charge and the middle charge have a certain thickness difference, the temperature penetrating phenomenon of the integral die is poor in the temperature control effect of the die in each stage, and it is difficult to achieve ideal requirements for high-performance thermoplastic prepreg.
Therefore, there is a need for a mold that overcomes the above-mentioned technical problems.
Disclosure of Invention
Aiming at the defects in the field, the invention provides the prepreg hot-melting infiltration mold, which improves the function of sizing agent on the fiber surface, refines the infiltration of a fiber layer and slurry, enhances the infiltration of a fiber prepreg product, not only avoids the problem of incomplete infiltration of a common thin thermoplastic prepreg, but also solves the problems of incomplete preparation and infiltration of a thick sheet thermoplastic prepreg and secondary press molding, is suitable for automatic continuous production of the fiber prepreg product, is suitable for a preparation process with multiple methods, has multiple purposes, can be separately used, meets the continuously developed industrial requirements, and is particularly suitable for researching a new process in a laboratory.
A prepreg hot-melting infiltration mold comprises a temperature control element, an infiltration mold, a preheating mold arranged on the inlet side of the infiltration mold, and a transition mold lip arranged on the outlet side of the infiltration mold and used for heat preservation of prepreg;
the infiltration mould comprises an upper mould plate and a lower mould plate which are matched up and down, the opposite surfaces of the upper mould plate and the lower mould plate are corrugated surfaces, bosses are respectively arranged on two sides of the lower mould plate parallel to the inlet and outlet direction, a plurality of vertical grooves are arranged on the inner side walls of the bosses, the length of each vertical groove is equal to the height of each boss, and convex parts matched with the vertical grooves are respectively arranged on two sides of the upper mould plate parallel to the inlet and outlet direction;
the preheating mould comprises two corrugated heating templates which are matched up and down;
the transition die lip comprises two die lips which are matched up and down.
The vertical recess of lower bolster boss and cope match-plate pattern convex part, big tension yarn is touching the mould side, owing to have the concave-convex part to stretch into the mould side, has prevented that the fibre from imbedding upper and lower mould clearance and guarantee that the thickness of finished product rim charge has improved the qualification rate.
The opposite surfaces of the two die lips can be surfaces in any shape, the distance between the two die lips is matched with the thickness of the prepreg, and the prepreg is in contact with the die lips when passing through the transition die lips, so that the thermal uniformity of the prepreg is ensured.
The outlet end of the transition die lip is a forming double-roller, and the existence of the transition die lip can shorten the distance between the infiltration die and the forming double-roller and keep the temperature of the prepreg.
Preferably, the inclination angle of the inlet section of the upper template and the horizontal direction of the lower template is 1-15 degrees, the outlet section is horizontal and has the length not less than 5mm, and an included angle of 0.1-3 degrees is formed from the outlet to the inlet after the upper template and the lower template are matched up and down;
the width of the opening of the inlet section of the lower template is gradually reduced along the advancing direction of the prepreg until the width is matched with the prepreg;
the bending angle of the wave-shaped surface is 140-165 degrees;
the wave-shaped surface is gradually increased from the inlet end to the outlet end.
The extrusion force of the wave crest of the fiber is changed from small to large by combining the cone shape and the wave shape, the heating, softening and melting process of the thermoplastic resin is matched, the melting and infiltration of the fiber and the plastic resin are facilitated, and the abrasion damage of the fiber and a mold is reduced. The horizontal outlet section with the length not less than 5mm is beneficial to preliminary shaping of the prepreg material. The inclination angle of the inlet section and the horizontal direction is 1-15 degrees, and the width of the opening of the inlet section of the lower template is gradually reduced along the advancing direction of the prepreg to form a yarn embedding prevention inclined plane design so as to prevent fibers from being embedded into the side face of the die at an inlet and an outlet.
Preferably, the inlet ends and the outlet ends of the upper template and the lower template are provided with arc chamfers, and the outlet ends are provided with arc chamfers. So as to prevent the fiber inlet and outlet from being abraded. Further preferably, the radius of the arc-shaped chamfer of the inlet end is 3-10 mm, and the radius of the arc-shaped chamfer of the outlet end is 1-5 mm.
Preferably, the infiltration mold further comprises a frame, wherein the frame comprises a bottom plate, an upright post fixed on the bottom plate, a lifting plate capable of moving up and down along the upright post, and a lifting mechanism for controlling the movement condition of the lifting plate;
a lower heat insulation plate, a lower heating plate and the lower template are fixedly arranged on the bottom plate from bottom to top in sequence;
the bottom surface of the lifting plate is fixedly provided with an upper heat insulation plate, an upper heating plate and the upper template from top to bottom in sequence.
Preferably, the lifting mechanism comprises a connecting rod fixed on the lifting plate and a motor for controlling the lifting of the connecting rod.
Preferably, the bending angle of the wave surface of the wave heating template is 165-170 degrees. The fiber spreading state is maintained by using the wave-shaped tension.
Preferably, the inlet end and the outlet end of the waveform heating template are both provided with arc-shaped chamfers. Further preferably, the radius of the arc-shaped chamfer of the inlet end is 3-10 mm, and the radius of the arc-shaped chamfer of the outlet end is 1-5 mm.
The inclination angle between the inlet section of the waveform heating template and the horizontal direction is 1-15 degrees. Prevent fiber abrasion and fuzzing.
Preferably, heat insulation cushion blocks are arranged between the soaking die and the preheating die and between the soaking die and the transition die lip;
the distance between the infiltration die and the transition die lip is not less than 5 mm. On the one hand, avoiding the temperature of penetration, and on the other hand, providing the prepreg with waste gas discharge at the outlet of the die.
The preheating mould can be combined with the soaking mould or other moulds can be replaced to be connected with the soaking mould such as a casting mould head and the like according to the needs, so that the application of the mould is greatly widened.
Preferably, the prepreg manufacturing device further comprises an air exhaust device and an exhaust channel communicated with the infiltration mold and the transition die lip, and the exhaust channel is used for exhausting waste gas generated when the infiltration mold and the transition die lip heat the prepreg.
Compared with the prior art, the invention has the main advantages that:
according to the prepreg hot-melting infiltration mold, due to the combination of the multiple sections of molds, the preheating mold can be combined with a melting mold (infiltration mold) or other molds can be replaced to be connected with the melting mold such as a casting mold head and the like according to needs, so that the application of the mold is greatly widened.
The fiber prepreg semi-finished product is preheated before entering the hot-melt infiltration mold, so that the effective length of the hot-melt infiltration mold is shortened, the friction length between the mold fiber and the mold is reduced, the integrity of the fiber surface is reduced, and the integrity of the fiber on the surface of the product is improved.
The hot-melting infiltration mold has a certain taper to ensure that the concave-convex surface of the mold is gradually improved towards the hot melting material and the infiltration pressure of the fibers, so that the fiber prepreg is more fully infiltrated, the infiltration of the fibers is ensured, the common problem that the thin thermoplastic prepreg is not thoroughly infiltrated is solved, the problem that the thick sheet thermoplastic prepreg is not thoroughly prepared and infiltrated is solved, the hot-melting infiltration mold is suitable for automatic continuous production of fiber prepreg products, and the hot-melting infiltration mold is suitable for preparation processes of various methods, has multiple purposes, can be separately and independently used, meets the continuously developed industrial requirements, and is particularly suitable for new processes of laboratory research.
Drawings
Fig. 1 is a schematic structural view of a prepreg hot-melt infiltration mold of an embodiment;
FIG. 2 is a schematic structural view of a lower mold plate portion of the prepreg hot-melt infiltration mold according to the embodiment, where the arrow direction is a prepreg advancing direction;
fig. 3 and 4 are schematic structural diagrams of an upper plate part of the prepreg hot-melt infiltration mold according to the embodiment, and the arrow direction is the prepreg advancing direction;
in the figure: 2-1 and 2-2 of waveform heating templates, 3-1 and 3-2 of pre-heating plates, 4-1 of heat insulation plates, 4-2 parts of heat insulation cushion blocks 5, an arc-shaped chamfer 6 at the inlet end of a preheating die, 6-1 parts of an upper die plate, 6-2 parts of a lower die plate, 7-1 parts of an upper heating plate, 7-2 parts of a lower heating plate, 8-1 parts of an upper heat insulation plate, 8-2 parts of a lower heat insulation plate, 9-1 parts of a lifting plate, 9-2 parts of a bottom plate, 11 parts of a preheating die way, 12 parts of a soaking die way, 13 parts of a die lip die way, 14 parts of a top plate, 15 parts of a motor, 16 parts of an upright post, 18 parts of an exhaust channel, 19-1 parts of an upper die lip, 19-2 parts of a lower die lip, 20 parts of a forming pair roller, 21 parts of a connecting rod, 22 parts of a vertical groove, 22-1 parts of convex parts, 23-1 parts of corrugated surfaces, 24 parts of bosses, 25-1 parts of inlet sections and 30 parts of positioning pins.
Detailed Description
The invention is further described with reference to the following drawings and specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The following examples are conducted under conditions not specified, usually according to conventional conditions, or according to conditions recommended by the manufacturer.
As shown in fig. 1, the prepreg hot-melting infiltration mold of the embodiment includes a temperature control element, an air exhaust device, an infiltration mold, a preheating mold disposed at an inlet side of the infiltration mold, and a transition mold lip disposed at an outlet side of the infiltration mold and used for insulating prepreg. The temperature control element can adopt temperature control equipment such as a thermocouple and the like, and can respectively and independently control the temperature of the infiltration mold, the preheating mold and the transition mold lip.
The infiltration mold comprises a frame, wherein the frame comprises a bottom plate 9-2, a top plate 14, two upright posts 16 which penetrate through the top plate 14 and are fixed on the bottom plate 9-2, a lifting plate 9-1 which can move up and down along the upright posts 16, and a lifting mechanism for controlling the movement condition of the lifting plate 9-1. The lifting plate 9-1 and the upright post 16 move up and down through a sliding block.
The upper surface of the bottom plate 9-2 is fixedly provided with a lower heat insulation plate 8-2, a lower heating plate 7-2 and a lower template 6-2 in sequence from bottom to top.
The bottom surface of the lifting plate 9-1 is fixedly provided with an upper heat insulation plate 8-1, an upper heating plate 7-1 and an upper template 6-1 in sequence from top to bottom.
The lifting mechanism comprises a connecting rod 21 fixed on the lifting plate 9-1 and a motor 15 arranged on the top plate 14 and used for controlling the lifting of the connecting rod 21. The bottom plate 9-2, the lower heat insulation plate 8-2, the lower heating plate 7-2 and the lower mold plate 6-2 are fixed, the motor 15 drives the connecting rod 21 to move up and down, so that the lifting plate 9-1, the upper heat insulation plate 8-1, the upper heating plate 7-1 and the upper mold plate 6-1 are driven to move together, and the mold closing and opening are realized through the positioning pin 30, so that the threading is convenient.
The upper template 6-1 and the lower template 6-2 are matched up and down to form a soaking mold die path 12. As shown in FIGS. 1-4, the opposite surfaces of the upper template 6-1 and the lower template 6-2 are corrugated surfaces 23 and 23-1. The inclination angles of the inlet sections 25 and 25-1 of the upper template 6-1 and the lower template 6-2 in the horizontal direction are 1-15 degrees, and the outlet sections are horizontal and have lengths not less than 5 mm. An included angle of 0.1-3 degrees is formed from the outlet to the inlet after the upper template 6-1 and the lower template 6-2 are matched. The bending angle of the wave-shaped surfaces 23 and 23-1 is 140-165 degrees. The bending angle of the wavy surface 23, 23-1 gradually increases from the inlet end to the outlet end. The opening width of the inlet section 25 of the lower template 6-2 is gradually reduced along the advancing direction of the prepreg to be matched with the prepreg.
The extrusion force of the wave crest of the fiber is changed from small to large by combining the cone shape and the wave shape, the heating, softening and melting process of the thermoplastic resin is matched, the melting and infiltration of the fiber and the plastic resin are facilitated, and the abrasion damage of the fiber and a mold is reduced. The horizontal outlet section with the length not less than 5mm is beneficial to preliminary shaping of the prepreg material. The inclination angle of the inlet sections 25 and 25-1 and the horizontal direction is 1-15 degrees, and the opening widths of the inlet sections 25-1 and 25 of the upper template 6-1 and the lower template 6-2 are gradually reduced along the advancing direction of the prepreg to form a yarn embedding prevention inclined plane design so as to prevent fibers from being embedded into the mold wall.
The inlet ends of the upper template 6-1 and the lower template 6-2 are provided with arc chamfers with the radius of 3-10 mm, and the outlet ends are provided with arc chamfers with the radius of 1-5 mm, so that abrasion of fiber inlets and fiber outlets is prevented.
As shown in fig. 2 to 4, bosses 24 are respectively arranged on two sides of the lower template 6-2 parallel to the inlet and outlet directions, a plurality of vertical grooves 22 parallel to each other are arranged on the inner side walls of the bosses 24, and the length of each vertical groove 22 is equal to the height of the inner side wall of each boss 24. And, one of the side bosses 24 is provided with a positioning pin 30. The two sides of the upper template 6-1 parallel to the inlet and outlet direction are respectively provided with a convex part 22-1 matched with the vertical groove 22. The vertical groove 22 of the lower template 6-2 is matched with the convex part 22-1 of the upper template 6-1, the large-tension yarn touches the side surface of the die, and the convex part 22-1 crosses the plane inner side wall of the boss 24 due to the concave-convex part, so that the fibers are prevented from being embedded into the gap between the upper die and the lower die, the thickness of finished rim charge is ensured, and the qualified rate is improved.
The preheating mould comprises two vertically symmetrical and matched waveform heating templates 2-1 and 2-2, preheating plates 3-1 and 3-2 and heat insulation plates 4-1 and 4-2. The bending angle of the wave-shaped surface of the wave-shaped heating templates 2-1 and 2-2 is 165-170 degrees. The fiber spreading state is maintained by using the wave-shaped tension. The inlet ends of the waveform heating templates 2-1 and 2-2 are provided with arc chamfers 6 with the radius of 3-10 mm, and the outlet ends are provided with arc chamfers with the radius of 1-5 mm. The two waveform heating templates 2-1 and 2-2 are matched to form a preheating mould passage 11, and the inclination angle between the inlet section and the horizontal direction is 1-15 degrees, so that fiber abrasion and fuzzing are prevented.
The transition die lip comprises an upper die lip 19-1 and a lower die lip 19-2 which are matched with each other, the opposite surfaces of the upper die lip 19-1 and the lower die lip 19-2 are smooth planes, the upper die lip 19-1 and the lower die lip 19-2 are matched to form a die lip die channel 13, the distance between the upper die lip 19-1 and the lower die lip 19-2 is matched with the thickness of prepreg, and the prepreg is contacted with the upper die lip 19-1 and the lower die lip 19-2 when passing through the die lip die channel 13, so that the thermal uniformity of the prepreg is ensured. The exit end of the transition die lip is close to the forming double-roller 20, and the existence of the transition die lip can shorten the distance between the infiltration die and the forming double-roller 20 and keep the temperature of the prepreg. The prepreg is shaped by a shaping roller 20.
And heat insulation cushion blocks 5 are arranged between the soaking die and the preheating die and between the soaking die and the transition die lip. The distance between the infiltration die and the transition die lip is not less than 5mm, so that on one hand, the temperature is prevented from being penetrated, and on the other hand, a smooth air exhaust space around the die is provided. The preheating mould can be combined with the soaking mould or other moulds can be replaced to be connected with the soaking mould such as a casting mould head and the like according to the needs, so that the application of the mould is greatly widened.
An exhaust channel 18 is arranged between the infiltration mold and the transition mold lip, one end of the exhaust channel 18 is communicated with the infiltration mold and the transition mold lip, and the other end of the exhaust channel 18 is communicated with the air exhaust device and used for exhausting waste gas generated when the infiltration mold and the transition mold lip heat the prepreg.
Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the above description of the present invention, and equivalents also fall within the scope of the invention as defined by the appended claims.

Claims (9)

1. A prepreg hot-melting infiltration mold comprises a temperature control element and is characterized by further comprising an infiltration mold, a preheating mold arranged on the inlet side of the infiltration mold, and a transition mold lip arranged on the outlet side of the infiltration mold and used for insulating prepreg;
the infiltration mould comprises an upper mould plate and a lower mould plate which are matched up and down, the opposite surfaces of the upper mould plate and the lower mould plate are corrugated surfaces, bosses are respectively arranged on two sides of the lower mould plate parallel to the inlet and outlet direction, a plurality of vertical grooves are arranged on the inner side walls of the bosses, the length of each vertical groove is equal to the height of each boss, and convex parts matched with the vertical grooves are respectively arranged on two sides of the upper mould plate parallel to the inlet and outlet direction;
the preheating mould comprises two corrugated heating templates which are matched up and down;
the transition die lip comprises two die lips which are matched up and down.
2. The prepreg hot-melt infiltration mold according to claim 1, wherein the inclination angle of the inlet section and the horizontal direction of the upper mold plate and the lower mold plate is 1-15 degrees, the outlet section is horizontal and has a length not less than 5mm, and an included angle of 0.1-3 degrees is formed from the outlet to the inlet after the upper mold plate and the lower mold plate are vertically matched;
the width of the opening of the inlet section of the lower template is gradually reduced along the advancing direction of the prepreg until the width is matched with the prepreg;
the bending angle of the wave-shaped surface is 140-165 degrees;
the wave-shaped surface is gradually increased from the inlet end to the outlet end.
3. The prepreg hot-melt infiltration mold according to claim 1, wherein the inlet end and the outlet end of the upper mold plate and the lower mold plate are provided with circular arc chamfers.
4. The hot-melt impregnation die for the prepregs according to any one of claims 1 to 3, wherein the impregnation die further comprises a frame, and the frame comprises a bottom plate, a column fixed on the bottom plate, a lifting plate capable of moving up and down along the column, and a lifting mechanism for controlling the movement of the lifting plate;
a lower heat insulation plate, a lower heating plate and the lower template are fixedly arranged on the bottom plate from bottom to top in sequence;
the bottom surface of the lifting plate is fixedly provided with an upper heat insulation plate, an upper heating plate and the upper template from top to bottom in sequence.
5. The prepreg hot melt infiltration mold of claim 4, wherein the lifting mechanism comprises a link fixed on the lifting plate and a motor for controlling the lifting of the link.
6. The prepreg hot-melt infiltration mold according to claim 1, wherein the bending angle of the wave-shaped surface of the wave-shaped heating template is 165-170 degrees.
7. The prepreg hot-melt infiltration mold according to claim 1, wherein the inlet end and the outlet end of the waveform heating template are both provided with circular arc chamfers;
the inclination angle between the inlet section of the waveform heating template and the horizontal direction is 1-15 degrees.
8. The prepreg hot-melt infiltration mold according to claim 1, wherein heat insulation cushion blocks are arranged between the infiltration mold and the preheating mold and between the infiltration mold and the transition mold lip;
the distance between the infiltration die and the transition die lip is not less than 5 mm.
9. The prepreg hot-melt infiltration mold according to claim 1, further comprising an air exhaust device and an exhaust channel communicated with the infiltration mold and the transition mold lip, and used for exhausting waste gas generated when the infiltration mold and the transition mold lip heat the prepreg.
CN201911368683.5A 2019-12-26 2019-12-26 Prepreg hot-melting infiltration mold Active CN113043568B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911368683.5A CN113043568B (en) 2019-12-26 2019-12-26 Prepreg hot-melting infiltration mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911368683.5A CN113043568B (en) 2019-12-26 2019-12-26 Prepreg hot-melting infiltration mold

Publications (2)

Publication Number Publication Date
CN113043568A CN113043568A (en) 2021-06-29
CN113043568B true CN113043568B (en) 2022-05-17

Family

ID=76505473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911368683.5A Active CN113043568B (en) 2019-12-26 2019-12-26 Prepreg hot-melting infiltration mold

Country Status (1)

Country Link
CN (1) CN113043568B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340211A2 (en) * 1988-04-27 1989-11-02 ISOSPORT VERBUNDBAUTEILE Ges.m.b.H. Process for the production of undersurfaces of skis, ski-undersurface prefabricated with a so produced undersurface as well as a ski with such an undersurface or undersurface prefabricate
JPH06210751A (en) * 1993-01-20 1994-08-02 Sekisui Chem Co Ltd Device for continuous manufacture of formed body
JP2000296519A (en) * 1999-02-08 2000-10-24 Sekisui Chem Co Ltd Method and apparatus for impregnating long-fiber bundle with curable resin
JP2006001116A (en) * 2004-06-17 2006-01-05 Daicel Chem Ind Ltd Splittable shaping die for producing long fiber-reinforced thermoplastic resin structure and method for producing long fiber-reinforced thermoplastic resin structure using the die
CN102814995A (en) * 2011-04-29 2012-12-12 提克纳有限责任公司 Die and method for impregnating fiber rovings
CN103687705A (en) * 2011-04-29 2014-03-26 提克纳有限责任公司 Impregnation section with tension adjustment device and method for impregnating fiber rovings
KR20180113759A (en) * 2017-04-07 2018-10-17 이엔컴퍼지트 주식회사 Hollow pipe forming apparatus using continuous composite fiber
CN208305845U (en) * 2018-05-21 2019-01-01 泰安市中研复合材料科技有限公司 A kind of device preparing grating band using composite fibre
CN110439630A (en) * 2019-08-12 2019-11-12 航天材料及工艺研究所 A kind of Varying-thickness composite material stator blade and its forming method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340211A2 (en) * 1988-04-27 1989-11-02 ISOSPORT VERBUNDBAUTEILE Ges.m.b.H. Process for the production of undersurfaces of skis, ski-undersurface prefabricated with a so produced undersurface as well as a ski with such an undersurface or undersurface prefabricate
JPH06210751A (en) * 1993-01-20 1994-08-02 Sekisui Chem Co Ltd Device for continuous manufacture of formed body
JP2000296519A (en) * 1999-02-08 2000-10-24 Sekisui Chem Co Ltd Method and apparatus for impregnating long-fiber bundle with curable resin
JP2006001116A (en) * 2004-06-17 2006-01-05 Daicel Chem Ind Ltd Splittable shaping die for producing long fiber-reinforced thermoplastic resin structure and method for producing long fiber-reinforced thermoplastic resin structure using the die
CN102814995A (en) * 2011-04-29 2012-12-12 提克纳有限责任公司 Die and method for impregnating fiber rovings
CN103687705A (en) * 2011-04-29 2014-03-26 提克纳有限责任公司 Impregnation section with tension adjustment device and method for impregnating fiber rovings
KR20180113759A (en) * 2017-04-07 2018-10-17 이엔컴퍼지트 주식회사 Hollow pipe forming apparatus using continuous composite fiber
CN208305845U (en) * 2018-05-21 2019-01-01 泰安市中研复合材料科技有限公司 A kind of device preparing grating band using composite fibre
CN110439630A (en) * 2019-08-12 2019-11-12 航天材料及工艺研究所 A kind of Varying-thickness composite material stator blade and its forming method

Also Published As

Publication number Publication date
CN113043568A (en) 2021-06-29

Similar Documents

Publication Publication Date Title
CN105408080B (en) Device for molding and method for compression molded fiber reinforcement type preformed member
TWM565218U (en) Three-dimensional paper-plastic product manufacturing equipment with zero draft angle
JP2019107867A (en) Melting impregnation apparatus and melting impregnation method
CN113043568B (en) Prepreg hot-melting infiltration mold
KR20100082957A (en) Method for manufacturing synthetic wood of high strength and synthetic wood thereof
CN105799124A (en) Cold runner device of liquid silicon rubber injection mold
US2818606A (en) Manufacture of articles from thermosetting materials
CN114434670B (en) Impregnation die, impregnation method and manufacturing system comprising impregnation die
CN106166820B (en) Regenerated polystyrene pipe and its production technology and application
CN205735768U (en) Polystyrene injection-molding finned tube production line
CN209126138U (en) Extrusion molding mould is used in a kind of production of FRPP reinforcement tubing
CN110370593A (en) A kind of thermoplastic continuous fibers composite material 3D printing consumptive material equipment and preparation method thereof
CN109333966A (en) A kind of production of FRPP reinforcement tubing extrusion molding mould and production method
CN109353034A (en) Thermoplasticity is punched hot pressing die and its application method certainly
CN103770347A (en) PEEK plastic plate production equipment and process
CN107840561A (en) The secondary arm-tie shaped device of glass squash type and its method
CN210758764U (en) Tile forming machine and forming production line
CN203110255U (en) Vulcanizing mould for injecting cold rubber glue channel
CN202558759U (en) Super-wide optical glass molding tool
CN214163951U (en) Plate extrusion device
CN110922036A (en) 3D glass hot bending die and process thereof
CN218948194U (en) Composite material air inlet channel product forming tool based on memory core die
KR100215243B1 (en) Preparation apparatus of plastics board plank
CN203805201U (en) Drum vulcanizing washer molding system
CN211441247U (en) Pultrusion mould for preparing thermoplastic prepreg by mud method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant