Integrated multifunctional prepreg production equipment

Abstract

The utility model relates to the technical field of prepreg processing, in particular to integrated multifunctional prepreg production equipment which comprises a pay-off unit, a gluing unit, a hot-pressing unit and a winding unit which are sequentially arranged in the direction of an assembly line, the gluing unit comprises a lower gluing unit arranged close to the pay-off unit, a lower paper feeding unit used for feeding paper to an inlet of the lower gluing unit, an upper gluing unit arranged close to the hot pressing unit and an upper paper feeding unit used for feeding paper to an inlet of the upper gluing unit. A yarn splitting and guiding switcher used for switching between a prepreg tape output state and a prepreg cloth output state is installed on the outlet side of the hot pressing unit, an upper paper collecting unit and a lower paper collecting unit are arranged on the upper side and the lower side of the yarn splitting and guiding switcher respectively, and the winding unit comprises a prepreg cloth winding unit, a prepreg tape winding unit and a prepreg tape laminating unit. According to the utility model, the integrated production of various prepreg products on one device is realized, and the production cost and the plant area are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of prepreg processing, in particular to an integrated multifunctional prepreg production device. Background Art

[0002] The composite material made of carbon fiber yarn, epoxy resin, release paper, PE film and other materials through processes such as gluing, hot pressing, cooling, laminating and winding is called carbon fiber prepreg, also known as carbon fiber prepreg cloth (carbon cloth). According to market needs, the wound prepreg cloth is cut into prepreg narrow strips of a certain width for secondary winding.

[0003] Existing prepreg production equipment is typically divided into a separate release paper gluing mechanism, a carbon fiber yarn hot-pressing and laminating mechanism, and a prepreg tape slitting mechanism. Specifically, the release paper gluing mechanism prepares rolls of adhesive-coated release paper; the adhesive-coated release paper is mounted on the hot-pressing and laminating mechanism, where it is laminated with carbon fiber yarn in a "sandwich" structure and hot-pressed to form a double-sided adhesive prepreg; and the slitting mechanism re-slits the rolls of prepreg and rewinds them into prepreg tapes of a certain width. Because each mechanism serves a single purpose, companies need to configure each of these mechanisms separately to meet market demand for various prepreg products, which inevitably increases production costs and creates a shortage of equipment and space. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides an integrated multifunctional prepreg production equipment.

[0005] The technical solution of the present utility model is: an integrated multifunctional prepreg production equipment, including a pay-off unit, a gluing unit, a hot pressing unit and a winding unit arranged in sequence along the direction of the assembly line, the gluing unit includes a lower gluing unit arranged near the pay-off unit, a lower paper placing unit for feeding paper to the inlet of the lower gluing unit, an upper gluing unit arranged near the hot pressing unit and an upper paper placing unit for feeding paper to the inlet of the upper gluing unit, the hot pressing unit has a hot pressing channel for the yarn led out of the pay-off unit and the upper and lower layers of adhesive release paper led out from the outlet side of the lower gluing unit and the outlet side of the upper gluing unit to pass through together, the outlet side of the hot pressing unit is equipped with a device for and a yarn-dividing and yarn-guiding switcher for switching between the prepreg output state and the prepreg output state. The yarn-dividing and yarn-guiding switcher is respectively provided with an upper paper receiving unit and a lower paper receiving unit on the upper and lower sides for winding up the upper and lower layers of degummed release paper. The winding unit includes a prepreg winding unit, a prepreg tape winding unit and a prepreg tape laminating unit. When the hot pressing unit is in the prepreg output state, the prepreg led out by the yarn-dividing and yarn-guiding switcher is wound on the prepreg tape winding unit together with the PE film released by the prepreg tape laminating unit; when the hot pressing unit is in the prepreg output state, the prepreg led out by the yarn-dividing and yarn-guiding switcher is wound on the prepreg winding unit together with the PE film released by the prepreg tape winding unit. By arranging an upper gluing unit, an upper paper placing unit, a lower gluing unit, and a lower paper placing unit on the inlet side of the hot pressing unit, and an upper paper collecting unit and a lower paper collecting unit on the outlet side of the hot pressing unit, the release paper gluing process and the carbon fiber yarn composite process are combined into one. At the same time, a yarn dividing and yarn guiding switcher is set on the outlet side of the hot pressing unit. The yarn dividing and yarn guiding switcher cooperates with the prepreg cloth winding unit, the prepreg tape winding unit and the prepreg tape laminating unit to complete the switching production of the two products, prepreg tape and prepreg cloth, and realize the integrated production of various types of prepreg products on one equipment, which effectively saves production costs and the required factory floor space.

[0006] The pay-off unit includes a creel, several pay-off rollers distributed in an array in the creel, and a first guide roller group located on the outlet side of each pay-off roller. The top of the lower gluing unit is rotatably installed with a flat guide roller that pulls the yarn output from each first guide roller group into the hot pressing unit.

[0007] The outlet of the upper gluing unit and the outlet of the lower gluing unit are arranged opposite to each other, the lower paper placing unit includes a first seat body located between the upper gluing unit and the lower gluing unit and a first paper placing roller horizontally rotatably installed on the first seat body, and the upper paper placing unit includes a second seat body located on the top of the hot pressing unit and a second paper placing roller rotatably installed on the second seat body.

[0008] The upper gluing unit and the lower gluing unit both include a gluing bracket, a comma glue scraping roller, a glue heating roller, a glue baffle and a second guide roller group. The glue heating roller is rotatably installed on the gluing bracket under the drive of the first drive motor. The comma glue scraping roller is slidably connected to the gluing bracket via a comma roller slide group and approaches or moves away from the glue roller under the drive of the first drive cylinder. The glue baffle is tilted and fixed on one side of the glue heating roller, and forms a glue groove with the surfaces of the glue heating roller and the comma glue scraping roller. The side of the glue heating roller and the comma glue scraping roller away from the glue groove forms the outlet of the upper gluing unit / lower gluing unit. The second guide roller group is rotatably installed on the glue bracket below the glue groove and forms the entrance of the upper gluing unit / lower gluing unit.

[0009] The hot pressing unit includes a hot pressing bracket, and a first hot pressing roller group, a second hot pressing roller group, a cooling air box and a traction roller group which are sequentially arranged on the hot pressing bracket along the assembly line direction. The roller gaps of the first hot pressing roller group, the second hot pressing roller group and the traction roller group are coaxially arranged with the cooling channel in the cooling air box and together form a hot pressing channel of the hot pressing unit. The lower paper receiving unit includes a lower seat body located at the lower end of the outer side of the hot pressing bracket, a first paper receiving roller horizontally rotatably mounted on the lower seat body, and a first paper receiving motor that drives the first paper receiving roller to rotate. The upper paper receiving unit includes an upper seat body located at the upper end of the outer side of the hot pressing bracket, a second paper receiving roller horizontally rotatably mounted on the upper seat body, and a second paper receiving motor that drives the second paper receiving roller to rotate.

[0010] The yarn splitting and guiding switcher includes a yarn guide shaft and a yarn splitting comb, both ends of the yarn guide shaft are fixed to the outlet position of the hot pressing bracket opposite to the traction roller group through the yarn guide seat, and both ends of the yarn splitting comb are connected to the yarn guide shaft through the first angle adjustment seat, and a plurality of comb teeth are arranged at equal intervals on the surface of the yarn splitting comb along the length direction. When the yarn splitting comb is at the first angle, the prepreg led out from the outlet of the hot pressing unit passes through the bottom of the yarn guide shaft and is divided into a plurality of prepreg strips of equal width through the comb teeth of the yarn splitting comb; when the yarn splitting comb is at the second angle, the prepreg led out from the outlet of the hot pressing unit is led out from the top of the yarn guide shaft as a prepreg cloth.

[0011] The hot pressing support is provided with a yarn spreading assembly at an entrance position opposite the first hot pressing roller group. The yarn spreading assembly includes a yarn spreading support and a plurality of yarn spreading shafts arranged side by side on the yarn spreading support. The yarn spreading support is connected to the hot pressing support via a second angle adjustment seat. A fixed width shaft is fixed to the position of the yarn spreading support away from the hot pressing support. The fixed width shaft has a plurality of fixed width rings arranged at equal intervals along the length direction. When the yarn spreading support is at a first angle, the yarn guided by the pay-off unit passes through the fixed width shaft and each yarn spreading shaft in sequence to coordinate with the prepreg output state of the hot pressing unit. When the yarn spreading support is at a second angle, the yarn guided by the pay-off unit passes through each yarn spreading shaft in sequence to coordinate with the prepreg output state of the hot pressing unit. Adding a yarn spreading assembly with a fixed width shaft on the entrance side of the hot pressing unit can ensure the uniformity of the yarn entering the hot pressing unit for forming into prepreg, thereby ensuring the uniformity of the glue content on the prepreg after forming.

[0012] The prepreg winding unit comprises a roller seat fixed to the outside of the hot press support, a front tensioning roller mounted on the roller seat and rotating horizontally in sequence along the production line, a prepreg winding roller, a rear tensioning roller, and a first winding motor driving the prepreg winding rollers. The prepreg tape winding unit comprises a winding support, a plurality of prepreg tape winding rollers arranged at equal intervals on the winding support, and a guide shaft assembly located below each prepreg tape winding roller. A second winding motor driving the prepreg tape winding rollers is mounted within the winding support. Short guide rollers are rotatably connected to the ends of each guide shaft of the guide shaft assembly, and each short guide roller is fixed to two spaced-apart width limiting rings. Guide rollers are mounted at the ends of the guide shafts of the guide shaft assembly, providing the guide shaft assembly with a guide roller portion for guiding the prepreg tape winding and a guide shaft portion for guiding the PE film for the prepreg fabric. The width limiting rings ensure the dimensional accuracy of the prepreg tape in the width direction during final winding.

[0013] The prepreg tape coating unit includes a reel and a tension wheel rotatably mounted on a reel support and correspondingly arranged to the prepreg tape reel. The PE film on the reel is pulled onto the prepreg tape reel via the tension wheel.

[0014] The beneficial effects of the present invention are as follows: by arranging an upper gluing unit, an upper paper placing unit, a lower gluing unit, and a lower paper placing unit on the inlet side of the hot pressing unit, and arranging an upper paper collecting unit and a lower paper collecting unit on the outlet side of the hot pressing unit, the release paper gluing process and the carbon fiber yarn composite process are combined into one; at the same time, a yarn dividing and yarn guiding switcher is provided on the outlet side of the hot pressing unit; the yarn dividing and yarn guiding switcher cooperates with the prepreg cloth winding unit, the prepreg tape winding unit, and the prepreg tape laminating unit to complete the switching production of the two products, the prepreg tape and the prepreg cloth, and realize the integrated production of multiple types of prepreg products on one device, effectively saving production costs and the required factory floor space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the wiring when the utility model is used for prepreg production;

[0016] Figure 2 This is a schematic diagram of the wiring when the utility model is used in the production of prepreg;

[0017] Figure 3 This is a structural diagram of the pay-off unit in the utility model;

[0018] Figure 4 This is a structural diagram of the glue coating unit in the utility model;

[0019] Figure 5 This is a schematic structural diagram of the hot pressing unit of the present invention, which is located near the traction roller group.

[0020] Figure 6 This is a schematic structural diagram of the hot pressing unit of the present invention, which is close to the first hot pressing roller group;

[0021] Figure 7 This is a schematic structural diagram of the prepreg winding unit and the prepreg laminating unit in the present invention;

[0022] Figure 8 yes Figure 5 A partial enlarged picture of middle A;

[0023] Figure 9 yes Figure 6 A partial enlarged view of B in the middle;

[0024] Figure 10 This is a structural diagram of the second angle adjustment seat in the utility model;

[0025] Figure 11 It is a structural schematic diagram of the width-fixing ring in the utility model.

[0026] Figure numerals: 1, pay-off unit; 101, pay-off roller; 102, first guide roller group; 103, creel; 104, flat guide roller; 2, lower gluing unit; 201, gluing bracket; 202, gluing heating roller; 203, comma scraping roller; 204, comma roller slide rail group; 205, first driving cylinder; 206, glue baffle; 207, first driving motor; 208, second guide roller group; 3, lower paper placing unit; 301, first seat; 302, first paper placing roller; 4, upper Gluing unit; 5. Upper paper feeding unit; 501. Second base; 502. Second paper feeding roller; 6. Hot pressing unit; 601. First hot pressing roller group; 602. Second hot pressing roller group; 603. Cooling air box; 604. Traction roller group; 605. Hot pressing bracket; 606. Second drive motor; 607. Gear group; 608. Second drive cylinder; 7. Lower paper receiving unit; 701. Lower base; 702. First paper receiving roller; 703. First paper receiving motor; 8. Upper paper receiving unit; 801 , upper seat; 802, second paper delivery roller; 803, second paper delivery motor; 9, prepreg winding unit; 901, roller seat; 902, front tensioning roller; 903, prepreg winding roller; 904, rear tensioning roller; 905, first winding motor; 10, yarn separation and guide switcher; 1001, yarn guide shaft; 1002, yarn guide seat; 1003. yarn separation comb; 1004, first angle adjustment seat; 1005, comb teeth; 11, prepreg tape winding unit; 1101, winding bracket; 1 102. Prepreg tape winding roller; 1103. Guide shaft group; 1104. Short guide roller; 12. Prepreg tape laminating unit; 1201. Unwinding disk; 1202. Tensioning pulley; 13. Yarn spreading assembly; 1301. Yarn spreading bracket; 1302. Second angle adjustment seat; 13021. Connecting hole; 13022. Expansion joint; 13023. Adjusting bolt; 1303. Yarn spreading shaft; 1304. Width-fixing shaft; 1305. Width-fixing ring; 1351. Ring body; 1352. Locking bolt. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Other embodiments obtained by those skilled in the art without making any creative work should fall within the scope of protection of the present invention.

[0028] like Figure 1As shown, the utility model provides an integrated multifunctional prepreg production equipment, including a pay-off unit 1, a gluing unit, a hot pressing unit 6 and a winding unit arranged in sequence along the direction of the assembly line, the gluing unit includes a lower gluing unit 2 arranged near the pay-off unit 1, a lower paper placing unit 3 for feeding paper to the inlet of the lower gluing unit 2, an upper gluing unit 4 arranged near the hot pressing unit 6 and an upper paper placing unit 5 for feeding paper to the inlet of the upper gluing unit 4, the hot pressing unit 6 has a hot pressing channel for the yarn guided out of the pay-off unit 1 and the upper and lower layers of adhesive release paper guided out from the outlet side of the lower gluing unit 2 and the outlet side of the upper gluing unit 4 to pass through, and the outlet side of the hot pressing unit 6 is equipped with a device for guiding the yarn guided out of the pay-off unit 1 and the upper and lower layers of adhesive release paper guided out from the outlet side of the lower gluing unit 2 and the outlet side of the upper gluing unit 4 to pass through together ... upper gluing unit 4 to pass through together, and the outlet side of the hot pressing unit 6 is equipped with a device for guiding the yarn guided out of the pay-off unit 1 and the upper and lower layers of adhesive release paper guided out from the outlet side of the upper gluing unit 4 to pass through together, and the upper and lower layers of adhesive release paper guided out from the outlet side of the and prepreg output states, the yarn-dividing and yarn-guiding switcher 10 is provided with an upper paper-collecting unit 8 and a lower paper-collecting unit 7 for rewinding the upper and lower layers of degummed release paper on the upper and lower sides respectively, and by arranging an upper gluing unit 4, an upper paper-releasing unit 5, a lower gluing unit 2, and a lower paper-releasing unit 3 on the inlet side of the hot pressing unit 6, and arranging an upper paper-collecting unit 8 and a lower paper-collecting unit 7 on the outlet side of the hot pressing unit 6, the release paper gluing process and the carbon fiber yarn composite process are combined into one, thereby achieving the purpose of saving equipment floor space; further, in order to cooperate with the yarn-dividing and yarn-guiding switcher 10, the rewinding unit includes a prepreg rewinding unit 9, a prepreg tape rewinding unit 11 and a prepreg tape coating unit 12, as shown Figure 1 As shown, when the hot pressing unit 6 is in the state of outputting the prepreg tape, the prepreg tape outputted by the yarn guide switcher 10 passes by the prepreg winding unit 9 and is wound on the prepreg winding unit 11 together with the PE film released by the prepreg coating unit 12; Figure 2 As shown, when the hot pressing unit 6 is in the state of outputting prepreg, the prepreg outputted by the yarn-dividing and yarn-guiding switcher 10 is wound together with the PE film released by the prepreg tape winding unit 11 on the prepreg cloth winding unit 9; by switching the working modes of the yarn-dividing and yarn-guiding switcher 10, the prepreg cloth winding unit 9 and the prepreg tape winding unit 11, the switching production of the two products, the prepreg tape and the prepreg, is completed, thereby realizing the integrated production of multiple types of prepreg products on one device, effectively meeting the company's production needs for various prepreg products, and saving production costs to the greatest extent.

[0029] like Figure 3 and Figure 4 As shown, the pay-off unit 1 includes a creel 103, a plurality of pay-off rollers 101 distributed in an array in the creel 103, and a first guide roller group 102 located on the line-out side of each pay-off roller 101. A flat guide roller 104 is rotatably installed on the top of the lower gluing unit 2 via a bracket. The spindle wound with carbon fiber yarn is installed on the pay-off roller 101. The carbon fiber yarn is led out through the first guide roller group 102 and pulled onto the flat guide roller 104, and enters the hot pressing unit 6 along the outer surface of the flat guide roller 104 to complete the line-out process of the pay-off unit 1.

[0030] like Figure 4 and Figure 6 As shown, the outlet of the upper gluing unit 4 and the outlet of the lower gluing unit 2 are arranged opposite to each other, the lower paper placing unit 3 includes a first seat body 301 located between the upper gluing unit 4 and the lower gluing unit 2 and a first paper placing roller 302 horizontally rotatably installed on the first seat body 301, and the upper paper placing unit 5 includes a second seat body 501 located on the top of the hot pressing unit 6 and a second paper placing roller 502 rotatably installed on the second seat body 501.

[0031] Specifically, such as Figure 3 As shown, the upper gluing unit 4 and the lower gluing unit 2 both include a gluing bracket 201, a comma glue scraping roller 203, a glue heating roller 202, a glue baffle 206 and a second guide roller group 208. The glue heating roller 202 is rotatably installed on the gluing bracket 201 under the drive of the first drive motor 207. The comma glue scraping roller 203 is slidably connected to the gluing bracket 201 through the comma roller slide group 204 and approaches or moves away from the gluing roller under the drive of the first drive cylinder 205. Specifically, the comma roller slide group 204 includes two groups of mutually cooperating slide rails and sliders. The two slide rails are fixed on both sides of the gluing bracket 201 along the vertical tilt. The two sliders are fixed on the bearing seats on both sides of the comma glue scraping roller 203. The cylinder body of the first drive cylinder 205 is fixed on the top of the gluing bracket 201. The driving end of the cylinder 205 is connected to the bearing seat of the comma scraping roller 203, and the roller gap between the glue coating heating roller 202 and the comma scraping roller 203 is adjusted by driving the first driving cylinder body, thereby adjusting the thickness of the glue; the glue baffle 206 is tilted and fixed on one side of the glue coating heating roller 202, and forms a glue groove with the surfaces of the glue coating heating roller 202 and the comma scraping roller 203. Preferably, an electric heating plate is installed on the glue baffle 206 to heat and melt the glue in the glue groove. Accordingly, the side of the glue coating heating roller 202 and the comma scraping roller 203 away from the glue groove forms the outlet of the upper glue coating unit 4 / lower glue coating unit 2, and the second guide roller group 208 is rotatably installed on the glue coating bracket 201 below the glue groove, and forms the entrance of the upper glue coating unit 4 / lower glue coating unit 2.

[0032] like Figure 1As shown, the hot pressing unit 6 includes a hot pressing bracket 605, and a first hot pressing roller group 601, a second hot pressing roller group 602, a cooling air box 603 and a pulling roller group 604 which are sequentially arranged on the hot pressing bracket 605 along the direction of the assembly line. The first hot pressing roller group, the second hot pressing roller group and the pulling roller group 604 are all existing technologies, and their structures are the same. They are all composed of an upper roller, a lower roller, a second drive motor 606, a gear group 607 and a second drive cylinder 608. The upper and lower rollers of the first hot pressing roller group and the second hot pressing roller are both electrically heated rollers. The cooling air box 603 has a cooling channel arranged transversely therethrough and a fan for cooling the cooling channel. This is existing technology and will not be described in detail. Preferably, the roller gaps of the first hot pressing roller group 601, the second hot pressing roller group 602 and the pulling roller group 604 are close to the gaps in the cooling air box 603. The cooling channel is coaxially arranged and together forms a hot pressing channel of the hot pressing unit 6. The lower paper collecting unit 7 includes a lower seat body 701 fixed to the lower end of the outer side of the hot pressing bracket 605, a first paper collecting roller 702 horizontally rotatably mounted on the lower seat body 701, and a first paper collecting motor 703 that drives the first paper collecting roller 702 to rotate. The upper paper collecting unit 8 includes an upper seat body 801 fixed to the upper end of the outer side of the hot pressing bracket 605, a second paper collecting roller 802 horizontally rotatably mounted on the upper seat body 801, and a second paper collecting motor 803 that drives the second paper collecting roller 802 to rotate. The upper and lower layers of adhesive release paper and the carbon fiber yarn in the middle entering from the inlet side of the hot pressing unit 6 are hot-pressed and laminated by the first hot pressing roller group 601 and the second hot pressing roller group 602 in sequence, cooled by the cooling air box 603, and led out of the hot pressing unit 6 by the traction roller group 604.

[0033] like Figure 5 and Figure 8 As shown, the yarn splitting and guiding switcher 10 includes a yarn guide shaft 1001 and a yarn splitting comb. Both ends of the yarn guide shaft 1001 are fixed to the outlet position of the hot pressing bracket 605 opposite to the traction roller group 604 through the yarn guide seat 1002, and both ends of the yarn splitting comb are connected to the first angle adjustment seat 1003. The yarn splitting comb 1004 is connected to the yarn guide shaft 1001, and a plurality of comb teeth 1005 are arranged at equal intervals on the surface of the yarn splitting comb along the length direction. When the yarn splitting comb is at the first angle, the prepreg led out from the outlet of the hot pressing unit 6 passes through the bottom of the yarn guide shaft 1001 and is divided into a plurality of prepreg tapes of equal width through the comb teeth 1005 of the yarn splitting comb; when the yarn splitting comb is at the second angle, the prepreg led out from the outlet of the hot pressing unit 6 is led out from above the yarn guide shaft 1001 as a prepreg cloth.

[0034] like Figure 6 and Figure 9As shown, the hot pressing bracket 605 is provided with a yarn spreading assembly 13 at the entrance position opposite to the first hot pressing roller group 601, and the yarn spreading assembly 13 includes a yarn spreading bracket 1301 and a plurality of yarn spreading shafts 1303 arranged side by side on the yarn spreading bracket 1301, the yarn spreading bracket 1301 is connected to the hot pressing bracket 605 via a second angle adjustment seat 1302, and a fixed width shaft 1304 is fixed at a position of the yarn spreading bracket 1301 away from the hot pressing bracket 605, and the fixed width shaft 1304 is evenly spaced along the length direction. A plurality of fixed width rings 1305 are arranged on the yarn spreading bracket 1301 at equal intervals. When at the first angle, the yarn led out by the pay-off unit 1 passes through the fixed-width shaft 1304 and each yarn spreading shaft 1303 in sequence and cooperates with the prepreg tape output state of the hot pressing unit 6. When the yarn spreading bracket 1301 is at the second angle, the yarn led out by the pay-off unit 1 passes through each yarn spreading shaft 1303 in sequence and cooperates with the prepreg cloth output state of the hot pressing unit 6; by adding a yarn spreading assembly 13 with a fixed-width shaft 1304 on the inlet side of the hot pressing unit 6, the uniformity of the yarn entering the hot pressing unit 6 for forming into a prepreg tape can be guaranteed, thereby ensuring the uniformity of the glue content on the prepreg tape after forming.

[0035] Specifically, the first angle adjustment seat 1003. The yarn comb; 1004 and the second angle adjustment seat 1302 are similar in structure, both are clamping guide rail brackets, taking the second angle adjustment seat 1302 as an example, Figure 9 As shown, the yarn spreading support 1301 is close to the hot pressing support 605, and both sides of the yarn spreading shaft 1303 penetrate the yarn spreading support 1301 to form an extension section, as shown in FIG. Figure 10 As shown, the second angle adjustment seat 1302 is provided with a connecting hole 13021 rotatably connected to the extension section and a deformation gap 13022 connected to the connecting hole 13021, and threaded holes are provided on the second angle adjustment seat 1302 on both sides of the deformation gap 13022. The adjusting bolts 13023 are connected with the threaded holes, and an external force is applied to the deformation gap 13022 to reduce the diameter of the connecting hole 13021 and lock it with the connecting section. The angle adjustment of the yarn spreading bracket 1301 is completed by operating the extension section to rotate a certain angle in the connecting hole 13021 of the second adjustment seat and then lock it.

[0036] like Figure 11 As shown, the width-fixing ring 1305 includes a ring body 1351 and a locking bolt 1352. The ring body 1351 is loosely fitted with the width-fixing shaft 1304. A threaded hole is provided on the ring body 1351. The locking bolt 1352 passes through the threaded hole and is in locking contact with the surface of the width-fixing shaft 1304. The distance between the connected ring bodies 1351 is the width of several carbon fiber yarns entering the hot pressing unit 6 for forming the prepreg tape.

[0037] like Figure 5As shown, the prepreg winding unit 9 includes a roller seat 901 fixed to the outside of the hot pressing bracket 605, a front tensioning roller 902 mounted on the roller seat and horizontally rotating in sequence along the production line direction, a prepreg winding roller 903 and a rear tensioning roller 904, and a first winding motor 905 that drives the prepreg winding roller 903 to rotate. Figure 7 As shown, the prepreg tape winding unit 11 includes a winding bracket 1101, a plurality of prepreg tape winding rollers 1102 arranged at equal intervals on the winding bracket 1101, and a guide shaft group 1103 located below each prepreg tape winding roller 1102. A second winding motor for driving the prepreg tape winding roller 1102 to rotate is installed in the winding bracket 1101, and each guide shaft end of the guide shaft group 1103 is rotatably connected to a short guide roller 1104. Two width limiting rings arranged at intervals are fixed on any short guide roller 1104. The structure of the width limiting ring is the same as that of the fixed width ring 1305, which will not be repeated here. By installing guide rollers at the guide shaft ends of the guide shaft group 1103, the guide shaft group 1103 has a guide roller portion for guiding the winding of the prepreg tape and a wire shaft portion for guiding the PE film for the prepreg cloth. At the same time, the setting of the width limiting ring can ensure the accuracy of the size of the prepreg tape in the width direction when it is finally wound.

[0038] like Figure 5 As shown, the prepreg tape coating unit 12 includes a reel 1201 and a tensioning wheel 1202 rotatably mounted on a reeling bracket 1101 and arranged corresponding to the prepreg tape reeling roller 1102. The PE film on the reel 1201 is pulled onto the prepreg tape reeling roller 1102 via the tensioning wheel 1202.

[0039] In this embodiment, the unwinding roller 101, the first unwinding roller 302, the second unwinding roller 502, the first paper receiving roller 702, the second paper receiving roller 802, the prepreg cloth receiving roller 903 and the prepreg tape receiving roller 1102 all have an inflatable shaft structure to fix the reels on the outside and limit their relative rotation. According to the production plan requirements, the production mode of this equipment is adjusted. For example, when it is necessary to produce prepreg tapes, Figure 1As shown, the yarn spreading bracket 1301 and the yarn dividing comb are adjusted to the first angle, the spindle of the carbon fiber yarn is set on the unwinding roller 101, and the PE film is set in the unwinding disk 1201. The PE film in each unwinding disk 1201 is pulled to the prepreg winding roller 1102 through the tensioning wheel 1202, and the carbon fiber yarn on each unwinding roller 101 passes through the first guide roller group 102 and the flat guide roller 104 in turn, and is separated into multiple groups of carbon fiber yarns at the fixed width shaft 1304, and is wound around the yarn spreading shaft 1303 in turn to enter the hot pressing unit 6, and the first paper putting roller 302 and the second paper putting roller 502 are both set with release paper, and epoxy resin glue is put into the glue groove of the lower gluing unit 2 and the upper gluing unit 4, and the upper and lower release papers are respectively pulled into the glue groove through the corresponding second guide roller group 208 and are drawn by the corresponding gluing unit The outlet is led out and overlapped with the carbon fiber yarn after the fixed width in a "sandwich" structure to enter the hot pressing channel of the hot pressing unit 6. The prepreg pulled out from the outlet of the hot pressing unit 6 passes through the yarn guide roller and is divided into multiple groups of prepreg tapes by the yarn comb. The upper and lower release papers pulled out from the outlet of the hot pressing unit 6 are respectively wound on the reels of the second winding roller and the first winding roller, and the winding of the release paper is completed under the drive of the second paper receiving motor 803 and the second paper receiving motor 803. Each group of prepreg tapes passes around the front tensioning roller 902, the prepreg cloth winding roller 903 and the rear tensioning roller 904 in turn, and is guided to the prepreg tape winding roller 1102 by the guide roller at the end of the corresponding guide shaft group 1103, and is wound together with the PE film into a prepreg tape finished roll under the drive of the second winding motor; if prepreg cloth needs to be produced, such as Figure 2 As shown, the yarn unwinding bracket 1301 and the yarn dividing comb are adjusted to the second angle, and the PE film required for the prepreg is put on any prepreg tape winding roller 1102. The PE film is guided to the prepreg winding roller 903 via the guide shaft of the guide shaft group 1103. The carbon fiber yarn on each unwinding roller 101 passes through the first guide roller group 102 and the flat guide roller 104 in turn, and is guided into the hot pressing unit 6 via the yarn unwinding shaft 1303. The installation method of the release paper remains unchanged. The prepreg pulled out from the outlet of the hot pressing unit 6 is led out from above the guide roller, and bypasses the front tensioning roller 902 to reach the prepreg winding roller 903. Under the drive of the first winding motor 905, it is wound together with the PE film to form a prepreg finished product roll; if a single adhesive release paper needs to be produced, only the lower gluing unit 2, the lower paper unwinding unit 3, the hot pressing unit 6 and the lower paper receiving unit 7 are used for production.

Claims

1. An integrated multifunctional prepreg production equipment, characterized in that, The machine comprises a pay-off unit, a gluing unit, a hot pressing unit and a winding unit which are sequentially arranged along the direction of the assembly line, the gluing unit comprising a lower gluing unit arranged near the pay-off unit, a lower paper placing unit for feeding paper to the inlet of the lower gluing unit, an upper gluing unit arranged near the hot pressing unit and an upper paper placing unit for feeding paper to the inlet of the upper gluing unit, the hot pressing unit is provided with a hot pressing channel for the yarn led out of the pay-off unit and the upper and lower layers of adhesive release paper led out of the outlet sides of the lower gluing unit and the upper gluing unit to pass through together, and a splitter for switching between a prepreg tape output state and a prepreg cloth output state is installed on the outlet side of the hot pressing unit. A yarn guide switcher, wherein the upper and lower sides of the yarn guide switcher are respectively provided with an upper paper receiving unit and a lower paper receiving unit for winding up the upper and lower layers of degummed release paper, and the winding unit includes a prepreg winding unit, a prepreg tape winding unit and a prepreg tape laminating unit. When the hot pressing unit is in the state of outputting the prepreg tape, the prepreg tape guided by the yarn guide switcher bypasses the prepreg winding unit and is wound on the prepreg tape winding unit together with the PE film released by the prepreg tape laminating unit; when the hot pressing unit is in the state of outputting the prepreg, the prepreg guided by the yarn guide switcher is wound on the prepreg winding unit together with the PE film released by the prepreg tape winding unit.

2. The integrated multifunctional prepreg production equipment according to claim 1, characterized in that: The pay-off unit includes a creel, several pay-off rollers distributed in an array in the creel, and a first guide roller group located on the outlet side of each pay-off roller. The top of the lower gluing unit is rotatably installed with a flat guide roller that pulls the yarn output from each first guide roller group into the hot pressing unit.

3. The integrated multifunctional prepreg production equipment according to claim 1 or 2, characterized in that: The outlet of the upper gluing unit and the outlet of the lower gluing unit are arranged opposite to each other, the lower paper placing unit includes a first seat body located between the upper gluing unit and the lower gluing unit and a first paper placing roller horizontally rotatably installed on the first seat body, and the upper paper placing unit includes a second seat body located on the top of the hot pressing unit and a second paper placing roller rotatably installed on the second seat body.

4. The integrated multifunctional prepreg production equipment according to claim 3, characterized in that: The upper gluing unit and the lower gluing unit both include a gluing bracket, a comma glue scraping roller, a glue heating roller, a glue baffle and a second guide roller group. The glue heating roller is rotatably installed on the gluing bracket under the drive of the first drive motor. The comma glue scraping roller is slidably connected to the gluing bracket via a comma roller slide group and approaches or moves away from the glue roller under the drive of the first drive cylinder. The glue baffle is tilted and fixed on one side of the glue heating roller, and forms a glue groove with the surfaces of the glue heating roller and the comma glue scraping roller. The side of the glue heating roller and the comma glue scraping roller away from the glue groove forms the outlet of the upper gluing unit / lower gluing unit. The second guide roller group is rotatably installed on the glue bracket below the glue groove and forms the entrance of the upper gluing unit / lower gluing unit.

5. The integrated multifunctional prepreg production equipment according to claim 1, characterized in that: The hot pressing unit includes a hot pressing bracket, and a first hot pressing roller group, a second hot pressing roller group, a cooling air box and a traction roller group which are sequentially arranged on the hot pressing bracket along the assembly line direction. The roller gaps of the first hot pressing roller group, the second hot pressing roller group and the traction roller group are coaxially arranged with the cooling channel in the cooling air box and together form a hot pressing channel of the hot pressing unit. The lower paper receiving unit includes a lower seat body located at the lower end of the outer side of the hot pressing bracket, a first paper receiving roller horizontally rotatably mounted on the lower seat body, and a first paper receiving motor that drives the first paper receiving roller to rotate. The upper paper receiving unit includes an upper seat body located at the upper end of the outer side of the hot pressing bracket, a second paper receiving roller horizontally rotatably mounted on the upper seat body, and a second paper receiving motor that drives the second paper receiving roller to rotate.

6. The integrated multifunctional prepreg production equipment according to claim 5, characterized in that: The yarn splitting and guiding switcher includes a yarn guide shaft and a yarn splitting comb, both ends of the yarn guide shaft are fixed to the outlet position of the hot pressing bracket opposite to the traction roller group through the yarn guide seat, and both ends of the yarn splitting comb are connected to the yarn guide shaft through the first angle adjustment seat, and a plurality of comb teeth are arranged at equal intervals on the surface of the yarn splitting comb along the length direction. When the yarn splitting comb is at the first angle, the prepreg led out from the outlet of the hot pressing unit passes through the bottom of the yarn guide shaft and is divided into a plurality of prepreg strips of equal width through the comb teeth of the yarn splitting comb; when the yarn splitting comb is at the second angle, the prepreg led out from the outlet of the hot pressing unit is led out from the top of the yarn guide shaft as a prepreg cloth.

7. The integrated multifunctional prepreg production equipment according to claim 5 or 6, characterized in that: The hot pressing bracket is provided with a yarn spreading assembly at an entrance position opposite to the first hot pressing roller group, and the yarn spreading assembly includes a yarn spreading bracket and a plurality of yarn spreading shafts arranged side by side on the yarn spreading bracket, the yarn spreading bracket is connected to the hot pressing bracket via a second angle adjustment seat, and a fixed width shaft is fixed at a position of the yarn spreading bracket away from the hot pressing bracket, and a plurality of fixed width rings are arranged at equal intervals along the length direction. When the yarn spreading bracket is at a first angle, the yarn led out by the pay-off unit passes through the fixed width shaft and each yarn spreading shaft in turn to cooperate with the prepreg tape output state of the hot pressing unit. When the yarn spreading bracket is at a second angle, the yarn led out by the pay-off unit passes through each yarn spreading shaft in turn to cooperate with the prepreg cloth output state of the hot pressing unit.

8. The integrated multifunctional prepreg production equipment according to claim 1, characterized in that: The prepreg winding unit includes a roller seat fixed to the outside of the hot pressing bracket, a front tensioning roller installed on the roller seat and rotating horizontally in sequence along the assembly line direction, a prepreg winding roller and a rear tensioning roller, and a first winding motor that drives the prepreg winding roller to rotate. The prepreg tape winding unit includes a winding bracket, a plurality of prepreg tape winding rollers arranged at equal intervals on the winding bracket, and a guide shaft group located below each prepreg tape winding roller. A second winding motor that drives the prepreg tape winding roller to rotate is installed in the winding bracket, and each guide shaft end of the guide shaft group is rotatably connected to a short guide roller, and any short guide roller is fixed with two width limiting rings arranged at intervals.

9. The integrated multifunctional prepreg production equipment according to claim 8, characterized in that: The prepreg tape coating unit includes a reel and a tension wheel rotatably mounted on a reel support and correspondingly arranged to the prepreg tape reel. The PE film on the reel is pulled onto the prepreg tape reel via the tension wheel.

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