Carbon fiber impregnation equipment

Abstract

The invention discloses carbon fiber impregnation equipment, which relates to the technical field of preparation of carbon fiber prepreg cloth and comprises a creel, a carbon fiber anti-twisting and wrinkle-reducing mechanism, a yarn spreading mechanism and an impregnation pressing mechanism which are sequentially arranged, the carbon fiber anti-twisting and anti-wrinkling mechanism is provided with an inlet horizontal shaping part for horizontally feeding the carbon fiber tows into the carbon fiber anti-twisting and anti-wrinkling mechanism, and an outlet horizontal shaping part for horizontally feeding the carbon fiber tows out of the carbon fiber anti-twisting and anti-wrinkling mechanism; the vertical shaping part is arranged between the inlet horizontal shaping part and the outlet horizontal shaping part and is used for jacking and tensioning the carbon fiber tows along the vertical direction; according to the carbon fiber twisting-preventing and wrinkle-reducing mechanism, the carbon fiber tows are horizontally shaped, and in the horizontal shaping process, the carbon fiber tows are vertically jacked, pressed and tensioned, so that twisting generated when the carbon fiber tows unwound from different unwinding positions reach the same horizontal position can be well weakened and eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber prepreg preparation, and in particular to a carbon fiber impregnation device. Background Art

[0002] In the process of preparing carbon fiber from carbon fiber tow into carbon fiber prepreg, it needs to go through steps such as yarn laying, yarn spreading, impregnation and pressing, and some also include processes such as film coating, trimming, and coiling. When spreading the yarn, it mainly adopts the "carbon fiber vibration yarn spreading device" proposed in Chinese utility model No. CN217628938U to vibrate and spread multiple bundles of ribbon-shaped or sheet-shaped carbon fiber tows in the upward, downward, left and right directions, so that the multiple bundles of carbon fiber tows become thin yarn sheets with uniform and dispersed width.

[0003] After the yarn is spread, it is usually impregnated and pressed using "a carbon fiber cloth with high-quality resin pressing mechanism" as proposed in Chinese utility model No. CN217944049U, that is, when the yarn sheet passes through two heatable pressing rollers arranged upper and lower, the release paper brushed with resin is simultaneously entered into the two heatable pressing rollers to be heated and pressed, and the resin is hot-melted during the pressing process, thereby forming an impregnation and pressing operation in which the resin is impregnated into the carbon fiber, thereby obtaining a carbon fiber prepreg.

[0004] Before unwinding the yarn, it is usually carried out to unwind multiple carbon fiber bundle reels by using "a constant tension yarn rack for large diameter carbon fiber bobbins" as proposed in Chinese utility model No. CN213622694U. Since the yarn rack has a multi-layer unwinding structure arranged up and down, each layer of the unwinding structure has at least two rows of bobbins arranged side by side on the left and right, and each row of bobbins has multiple bobbins arranged side by side front and back, and the bobbins are used to install the carbon fiber bundle reels to be unwound.

[0005] Before unrolling, it is necessary to gather the multiple bundles of carbon fiber tows unwound above at the same horizontal plane, which causes the carbon fiber tows unwound from the carbon fiber tow reels at different positions to produce different degrees of twisting when they reach the above-mentioned horizontal position; although the carbon fiber tows will be unrolled by the unrolling device before reaching the pressing position of the impregnation pressing equipment from the creel, the above-mentioned twisting will still be mostly retained. On the one hand, this twisting will cause gaps between adjacent carbon fiber tows, and after the subsequent impregnation pressing to form a carbon fiber prepreg, obvious gaps will be left in the carbon fiber prepreg; on the other hand, when the degree of this twisting is more serious, it will also cause the carbon fiber prepreg formed by the subsequent impregnation pressing to wrinkle, resulting in low product quality and poor usability. Summary of the invention

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a carbon fiber impregnation device, comprising a creel, a yarn spreading mechanism, and an impregnation pressing mechanism which are arranged in sequence; the creel is used to unwind the sheet-like or strip-like carbon fiber bundles wound on a reel, and constitutes a feeding direction from the creel to the yarn spreading mechanism and then from the yarn spreading mechanism to the impregnation pressing mechanism; the yarn spreading mechanism is used to spread the carbon fiber bundles unwound by the creel; the impregnation pressing mechanism is used to press and impregnate the gauze obtained by the yarn spreading mechanism to obtain a carbon fiber prepreg; a carbon fiber anti-twist and wrinkle reduction mechanism is arranged between the creel and the yarn spreading mechanism, and in the feeding direction, the carbon fiber anti-twist and wrinkle reduction mechanism has an inlet horizontal shaping part for horizontally feeding the carbon fiber bundles into the carbon fiber anti-twist and wrinkle reduction mechanism, an outlet horizontal shaping part for horizontally feeding the carbon fiber bundles out of the carbon fiber anti-twist and wrinkle reduction mechanism, and a vertical shaping part for pressing and tensioning the carbon fiber bundles in the vertical direction between the inlet horizontal shaping part and the outlet horizontal shaping part.

[0008] As a further solution of the present invention: the inlet horizontal shaping part includes a first mounting frame, on which a first upper horizontal pressing plate and a first lower horizontal pressing plate corresponding to the first upper horizontal pressing plate are arranged, and a first horizontal passing gap suitable for the carbon fiber tow to pass through is provided between the first upper horizontal pressing plate and the first lower horizontal pressing plate; when the carbon fiber tow passes through the first horizontal passing gap, the first upper horizontal pressing plate and the first lower horizontal pressing plate together form a mechanism to flatten the carbon fiber tow along the thickness direction of the carbon fiber tow.

[0009] As a further solution of the present invention: the outlet horizontal shaping part includes a second mounting frame, on which a second upper horizontal pressing plate and a second lower horizontal pressing plate corresponding to the second upper horizontal pressing plate are arranged, and a second horizontal passing gap suitable for the carbon fiber tow to pass through is provided between the second upper horizontal pressing plate and the second lower horizontal pressing plate; when the carbon fiber tow passes through the second horizontal passing gap, the second upper horizontal pressing plate and the second lower horizontal pressing plate together form a mechanism to flatten the carbon fiber tow along the thickness direction of the carbon fiber tow.

[0010] As a further solution of the present invention: the vertical shaping part includes a support frame, on which a tensioning column is arranged along the width direction of the carbon fiber prepreg cloth; in the feeding direction, the tensioning column is located between the first horizontal through gap and the second horizontal through gap; the tensioning column has a top pressing part protruding along the vertical direction; the top pressing part forms a height difference with the first horizontal through gap and the second horizontal through gap, and the direction of the height difference is the same.

[0011] As a further solution of the present invention: the top pressing part has a group of carbon fiber shaping surfaces, which include an oblique entry surface, an oblique delivery surface, and an arc-shaped continuous surface for connecting the oblique entry surface and the oblique delivery surface, the oblique entry surface is inclined toward the direction of the first horizontal passing gap, and the oblique delivery surface is inclined toward the direction of the second horizontal passing gap; after the carbon fiber bundle passes through the first horizontal passing gap, it reaches the oblique entry surface, the arc-shaped continuous surface, and the oblique delivery surface in sequence, and then passes through the second horizontal passing gap.

[0012] As a further solution of the present invention: the top pressing portion is protruding upward, and the first horizontal through gap and the second horizontal through gap are both lower than the top pressing portion; a first guide wing is formed on the first upper horizontal pressing plate at a side corresponding to the through-port of the first horizontal through gap, and the first guide wing is inclined toward the top pressing portion; a second guide wing is formed on the second upper horizontal pressing plate at a side corresponding to the through-port of the second horizontal through gap, and the second guide wing is inclined toward the top pressing portion.

[0013] As a further solution of the present invention: when the carbon fiber bundle is pressed upward to be tensioned on the arc-shaped continuous surface, the first guide wing plate has a first guide slope corresponding to the carbon fiber bundle, and the second guide wing plate has a second guide slope corresponding to the carbon fiber bundle; the first guide slope is located below the surface where the oblique entry surface is located; the second guide slope is located below the surface where the oblique delivery surface is located.

[0014] As a further solution of the present invention: a first height adjustment component for independently adjusting the height of the first upper horizontal pressing plate and independently adjusting the height of the first lower horizontal pressing plate is provided on the first mounting frame.

[0015] As a further solution of the present invention: a second height adjustment component for independently adjusting the height of the second upper horizontal pressing plate and independently adjusting the height of the second lower horizontal pressing plate is provided on the second mounting frame.

[0016] As a further solution of the present invention: both ends of the tensioning column are connected to a rotating shaft, and an angle adjustment component for adjusting the rotation angle of the rotating shaft is provided on the support frame; the outer peripheral surface of the column body of the tensioning column is composed of multiple groups of carbon fiber shaping surfaces connected in sequence; when the arc-shaped continuous surfaces of different groups of carbon fiber shaping surfaces are located directly above, different oblique entry surfaces have different top pressure inclinations on the carbon fiber bundles, and different oblique delivery surfaces have different top pressure inclinations on the carbon fiber bundles.

[0017] Compared with the prior art, the beneficial effects of the present technical solution are as follows: the carbon fiber tow is horizontally shaped by the carbon fiber anti-twist and wrinkle reduction mechanism, and in the process of horizontal shaping, the carbon fiber tow is vertically pressed and tensioned, so that the torsion generated by the carbon fiber tows unwound from different unwinding positions when reaching the same horizontal position can be better weakened and eliminated, so that the finally prepared carbon fiber prepreg is not prone to leaving obvious gaps due to the torsion of the carbon fiber tow, and the wrinkling of the carbon fiber prepreg due to the torsion of the carbon fiber tow is reduced, thereby effectively improving the quality of the product and improving the availability of the product.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a structural cross-sectional view of the carbon fiber anti-twist and wrinkle reduction mechanism of the present invention; Figure 3 2 is another structural cross-sectional view of the carbon fiber anti-twist and wrinkle reduction mechanism of the present invention, in which a dotted line shows a surface E1 where an oblique entry surface is located, and a dotted line shows a surface F1 where an oblique delivery surface is located; Figure 4 It is a structural cross-sectional view when the arc-shaped continuous surface of the first group of carbon fiber shaping surfaces is rotated to the top in the present invention; Figure 5 It is a structural cross-sectional view when the arc-shaped continuous surface of the second group of carbon fiber shaping surfaces is rotated to the top in the present invention; Figure 6 It is a structural cross-sectional view of the first upper horizontal pressing plate and the first lower horizontal pressing plate in the present invention; Figure 7 It is a structural cross-sectional view of the second upper horizontal pressing plate and the second lower horizontal pressing plate in the present invention.

[0021] The corresponding reference numerals in the accompanying drawings are described as follows: Creel-1, carbon fiber anti-twist and wrinkle reduction mechanism-2, yarn spreading mechanism-3, impregnation and pressing mechanism-4, tooth comb-5, Entrance horizontal shaping section-21, first mounting frame 211, first upper horizontal pressing plate 212, first lower horizontal pressing plate 213, first horizontal through gap 214, first guide wing plate 215, first guide slope 2151, first vertical guide rod 216, first adjusting slider 217a, 217b, adjusting bolts 218a, 218b, Exit horizontal shaping section-22, The second mounting frame 221, the second upper horizontal pressing plate 222, the second lower horizontal pressing plate 223, the second horizontal through gap 224, the second guide wing plate 225, the second guide slope 2251, the second vertical guide rod 226, the second adjusting slider 227a, 227b, the adjusting bolts 228a, 228b, Vertical shaping section-23, Support frame 231, tensioning column 232, carbon fiber shaping surface 233a, 233b, oblique entry surface 2331a, 2331b, arc continuous surface 2332a, 2332b, oblique delivery surface 2333a, 2333b, elastic clamping plate 234a, 234b, clamping adjustment bolt 235. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-7 In this embodiment, a carbon fiber impregnation device includes a yarn rack 1, a carbon fiber anti-twist and wrinkle reduction mechanism 2, a yarn spreading mechanism 3, and an impregnation and pressing mechanism 4 which are arranged in sequence.

[0024] The creel 1 is used to unwind the sheet or strip carbon fiber tow wound on the reel, and forms a feeding direction from the creel 1 to the carbon fiber anti-twist and wrinkle reduction mechanism 2, then from the carbon fiber anti-twist and wrinkle reduction mechanism 2 to the yarn spreading mechanism 3, and then from the yarn spreading mechanism 3 to the impregnation and pressing mechanism 4.

[0025] In the feeding direction, the carbon fiber anti-twist and wrinkle reduction mechanism 2 has an inlet horizontal shaping part 21 for horizontally feeding the carbon fiber bundle into the carbon fiber anti-twist and wrinkle reduction mechanism, an outlet horizontal shaping part 22 for horizontally feeding the carbon fiber bundle out of the carbon fiber anti-twist and wrinkle reduction mechanism, and a vertical shaping part 23 for pressing and tensioning the carbon fiber bundle along the vertical direction between the inlet horizontal shaping part 21 and the outlet horizontal shaping part 22.

[0026] When the carbon fiber tow is horizontally fed into the inlet horizontal shaping part 21 of the carbon fiber anti-twist and wrinkle reduction mechanism, the thickness direction of the carbon fiber tow is set vertically, and when the carbon fiber tow is horizontally fed out of the outlet horizontal shaping part 22 of the carbon fiber anti-twist and wrinkle reduction mechanism, the thickness direction of the carbon fiber tow is set vertically, that is, the sheet surface of the carbon fiber tow or the belt surface of the carbon fiber tow is set horizontally. The vertical shaping part 23 is to press and tension the carbon fiber tow along the thickness direction of the carbon fiber tow.

[0027] The yarn spreading mechanism 3 is used to spread the carbon fiber tow unwound by the creel 1 and shaped by the carbon fiber anti-twist and wrinkle reduction mechanism 2 to obtain gauze.

[0028] The impregnation and pressing mechanism 4 is used to press and impregnate the gauze obtained by the yarn spreading mechanism 3 to obtain a carbon fiber prepreg.

[0029] The carbon fiber tow is horizontally shaped by the carbon fiber anti-twisting and wrinkle-reducing mechanism 2, and in the process of horizontal shaping, the carbon fiber tow is vertically shaped, so that the torsion generated by multiple carbon fiber tows unwound from different unwinding positions when reaching the same horizontal position can be better weakened and eliminated, so that the finally prepared carbon fiber prepreg is not easy to leave obvious gaps due to the torsion of the carbon fiber tow, and the wrinkling of the carbon fiber prepreg due to the torsion of the carbon fiber tow is reduced, thereby effectively improving the quality of the product and improving the availability of the product.

[0030] In this embodiment, please refer to Figure 2 , 6 The entrance horizontal shaping part 21 includes a first mounting frame 211, on which a first upper horizontal pressing plate 212 and a first lower horizontal pressing plate 213 corresponding to the first upper horizontal pressing plate 212 are arranged, and a first horizontal passing gap 214 suitable for the carbon fiber tow to pass through is provided between the first upper horizontal pressing plate 212 and the first lower horizontal pressing plate 213; when the carbon fiber tow passes through the first horizontal passing gap 214, the first upper horizontal pressing plate 212 and the first lower horizontal pressing plate 213 together form a mechanism to flatten the carbon fiber tow along the thickness direction of the carbon fiber tow.

[0031] See also Figure 2 , 7 The outlet horizontal shaping portion 22 includes a second mounting frame 221, on which a second upper horizontal pressing plate 222 and a second lower horizontal pressing plate 223 corresponding to the second upper horizontal pressing plate 222 are arranged, and a second horizontal passing gap 224 suitable for the carbon fiber tow to pass through is provided between the second upper horizontal pressing plate 222 and the second lower horizontal pressing plate 223; when the carbon fiber tow passes through the second horizontal passing gap 224, the second upper horizontal pressing plate 222 and the second lower horizontal pressing plate 223 together form a mechanism for flattening the carbon fiber tow along the thickness direction of the carbon fiber tow.

[0032] See also Figure 2 The vertical shaping part 23 includes a support frame, and a tensioning column 232 is arranged on the support frame 231 along the width direction of the carbon fiber prepreg cloth; in the feeding direction, the tensioning column 232 is located between the first horizontal through gap 241 and the second horizontal through gap 224; the tensioning column 232 has a top pressing portion protruding along the vertical direction; the top pressing portion forms a height difference with the first horizontal through gap 214 and the second horizontal through gap 224, and the direction of the height difference is the same.

[0033] The same direction of the height difference indicates that the pressing portion is higher than the first horizontal through gap 214 and the second horizontal through gap 224 at the same time, or that the pressing portion is lower than the first horizontal through gap 241 and the second horizontal through gap 224 at the same time.

[0034] In some embodiments, a tooth comb 5 may be provided between the carbon fiber anti-twist and wrinkle reduction mechanism 2 and the creel 1, and the length direction of the tooth comb 5 is the same as the width direction of the carbon fiber prepreg. Figure 1 As shown, the width of the carbon fiber prepreg is the front-to-back direction in the figure. The tooth comb 5 has a plurality of tooth gaps that can be penetrated and are arranged at intervals along the length direction of the tooth comb to prevent the plurality of carbon fiber bundles from being entangled with each other.

[0035] In some embodiments, a tooth comb may also be provided between the carbon fiber anti-twist and wrinkle reduction mechanism and the yarn spreading mechanism.

[0036] In this embodiment, please refer to Figure 2 , 4 The top pressing portion has a group of carbon fiber shaping surfaces 223a, which include an oblique entry surface 2331a, an oblique delivery surface 2333a, and an arc-shaped continuous surface 2332a for connecting the oblique entry surface 2331a and the oblique delivery surface 2333a. The oblique entry surface 2331a is inclined toward the direction of the first horizontal through-gap 214, and the oblique delivery surface 2333a is inclined toward the direction of the second horizontal through-gap 224. After the carbon fiber tow passes through the first horizontal through-gap 214, it reaches the oblique entry surface 2331a, the arc-shaped continuous surface 2332a, and the oblique delivery surface 2333a in sequence, and then passes through the second horizontal through-gap 224.

[0037] When the creel 1 is used to unwind multiple rolls of carbon fiber tows, especially when the multiple rolls of carbon fiber tows have different unwinding positions in the transverse, vertical and longitudinal directions, the multiple bundles of carbon fiber tows obtained after the multiple rolls of carbon fiber tows are unwound are first flattened at the same horizontal position by the first upper horizontal pressing plate 212 and the first lower horizontal pressing plate 213; then the carbon fiber tows are vertically pressed and tensioned by the arc-shaped continuous surface 2332a of the pressing portion, and the carbon fiber tows are flattened for the second time by the second upper horizontal pressing plate 222 and the second lower horizontal pressing plate 223, so that the carbon fiber tows can be pressed and tensioned into an inverted V shape (or V shape).

[0038] The front section of the inverted V-shaped (or V-shaped) carbon fiber bundle and the rear section of the inverted V-shaped (or V-shaped) carbon fiber bundle are resisted by the arc-shaped continuous surface of the top pressure part to resist the torsional force retained after the carbon fiber bundle passes through the first horizontal gap.

[0039] Figure 2 The pressing portion is higher than the first horizontal passing gap and the second horizontal passing gap, and the carbon fiber tow is correspondingly pressed and tensioned into an inverted V shape.

[0040] The first horizontal through gap 214 formed by the first upper horizontal pressing plate 212 and the first lower horizontal pressing plate 213, and the second horizontal through gap formed by the second upper horizontal pressing plate 222 and the second lower horizontal pressing plate 223 can leave sufficient flattening distance for the carbon fiber to be flattened; the flattening distance of the first horizontal through gap 214 is, for example, 10 cm, and the flattening distance of the second horizontal through gap 224 is, for example, 10 cm, thereby ensuring a better flattening process.

[0041] like Figure 6 , 7 As shown, the flattening distance is the distance horizontally passing through the first horizontal through gap 214 from right to left, and is the distance horizontally passing through the second horizontal through gap 224 from right to left.

[0042] In this embodiment, the pressing portion is protruding upward, and the first horizontal through gap 214 and the second horizontal through gap 224 are both lower than the pressing portion.

[0043] A first guide wing 215 is formed on one side of the first upper horizontal pressure plate 212 corresponding to the first horizontal through-gap 214 through-hole, and the first guide wing 215 is inclined toward the top pressing portion; a second guide wing 225 is formed on one side of the second upper horizontal pressure plate 222 corresponding to the second horizontal through-gap 224 through-hole, and the second guide wing 225 is inclined toward the top pressing portion.

[0044] When the arc-shaped continuous surface 2332a presses and tensions the carbon fiber tow upward, the first guide wing plate 215 has a first guide slope 2151 corresponding to the carbon fiber tow, and the second guide wing plate 225 has a second guide slope 2251 corresponding to the carbon fiber tow.

[0045] The first guiding slope 2151 is located below the surface E1 where the oblique entrance surface 2331 a is located; the second guiding slope 2251 is located below the surface F1 where the oblique delivery surface 2333 a is located.

[0046] After the arc-shaped continuous surface 2332a is pressed and tensioned on the carbon fiber tow along the thickness direction of the carbon fiber tow, the first guide slope 2151 can simultaneously form an oblique downward abutting force on the carbon fiber tow, the oblique entry surface 2331a can apply an oblique upward abutting force on the carbon fiber tow, the oblique delivery surface 2333a can apply an oblique upward abutting force on the carbon fiber tow, and the second guide slope 2251 can apply an oblique downward abutting force on the carbon fiber tow, so that the carbon fiber tow can form a pressure-type guide on the first guide slope 2151, the oblique entry surface 2331a, the oblique delivery surface 2333a, and the second guide slope 2251, so as to effectively extend the overall pressure area, thereby better eliminating torsion.

[0047] In this embodiment, a first height adjustment component for independently adjusting the height of the first upper horizontal pressing plate 212 and the first lower horizontal pressing plate 213 is disposed on the first mounting frame 211 .

[0048] The second mounting frame 221 is provided with a second height adjustment assembly for independently adjusting the height of the second upper horizontal pressing plate 222 and the second lower horizontal pressing plate 223 .

[0049] like Figure 2 As shown, a first vertical guide rod 216 is provided on the first mounting frame 211, and a pair of first adjusting sliders (217a, 217b) are provided on the first vertical guide rod 216, the first upper horizontal pressure plate 212 is connected to the upper first adjusting slider 217a, and the first lower horizontal pressure plate 213 is connected to the lower first adjusting slider 217b.

[0050] The first adjusting slider is formed with a screw hole corresponding to the first vertical guide rod 216, and the first adjusting slider (217a, 217b) is fastened to the first vertical guide rod 216 via an adjusting bolt (218a, 218b). By loosening the adjusting bolt (218a, 218b) on the screw hole, the first adjusting slider (217a, 217b) can be moved up and down to adjust the height of the corresponding horizontal pressing plate.

[0051] A second vertical guide rod 226 is arranged on the second mounting frame 221, and a pair of second adjusting sliders (227a, 227b) are arranged upper and lower on the second vertical guide rod 226. The second upper horizontal pressure plate 222 is connected to the upper second adjusting slider 227a, and the second lower horizontal pressure plate 223 is connected to the lower second adjusting slider 227b.

[0052] The second adjusting slider is formed with a screw hole corresponding to the second vertical guide rod 226, and the second adjusting slider (227a, 227b) is fastened to the second vertical guide rod 226 by an adjusting bolt (228a, 228b). By loosening the adjusting bolt (228a, 228b) on the screw hole, the second adjusting slider (227a, 227b) can be moved up and down to adjust the height of the corresponding horizontal pressing plate.

[0053] By adjusting up and down, different flattening heights can be set according to needs, different pressing forces can be set, and different reserved penetration heights can be set.

[0054] like Figure 2 , 4 As shown in Figure 5, both ends of the tensioning column 232 are connected with a rotating shaft, and the support frame 231 is provided with an angle adjustment component for adjusting the rotation angle of the rotating shaft; the outer peripheral surface of the column body of the tensioning column 232 is composed of multiple groups of carbon fiber shaping surfaces connected in sequence; when the arc-shaped continuous surfaces of different groups of carbon fiber shaping surfaces are located directly above, different oblique entry surfaces have different top pressure inclinations on the carbon fiber bundle, and different oblique delivery surfaces have different top pressure inclinations on the carbon fiber bundle.

[0055] like Figure 4 , 5 As shown, when the arc-shaped continuous surface 2332a of the first group of carbon fiber shaping surfaces 233a is located directly above, the slope of the oblique entry surface 2331a of the first group of carbon fiber shaping surfaces 233a is A, and the slope of the oblique delivery surface 2333a of the first group of carbon fiber shaping surfaces 233a is B; when the arc-shaped continuous surface 2332b of the second group of carbon fiber shaping surfaces 233b is located directly above, the slope of the oblique entry surface 2331b of the second group of carbon fiber shaping surfaces 233b is C, and the slope of the oblique delivery surface 2333b of the first group of carbon fiber shaping surfaces 233b is D.

[0056] Slope A is different from slope C, and slope B is different from slope D.

[0057] like Figure 2As shown, a rotating shaft seat matched with the rotating shaft is connected to the support frame 231. The rotating shaft seat is composed of two elastic clamping plates (234a, 234b), and a rotating shaft hole with an adjustable aperture matched with the rotating shaft is formed between the two elastic clamping plates (234a, 234b). The two elastic clamping plates (234a, 234b) are connected by a clamping adjustment bolt 235, one of the elastic clamping plates 234b has a connecting hole matched with the clamping adjustment bolt 235, and the other elastic clamping plate 234a has a screw hole matched with the clamping adjustment bolt 235. By tightening / loosening the clamping adjustment bolt 235, the rotating shaft seat can clamp and loosen the rotating shaft, so that the angle of the tensioning column on the rotating shaft can be adjusted.

[0058] By rotating and adjusting, the inclined entry surface and the inclined delivery surface with different inclinations can be selected according to needs, which has better applicability.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A carbon fiber impregnation device, characterized in that: It includes a creel, a yarn spreading mechanism, and an impregnation pressing mechanism which are arranged in sequence; the creel is used to unwind the sheet-shaped or ribbon-shaped carbon fiber tow wound on the reel, and forms a feeding direction from the creel to the yarn spreading mechanism, and then from the yarn spreading mechanism to the impregnation pressing mechanism; A carbon fiber anti-twist and wrinkle reduction mechanism is arranged between the yarn frame and the yarn spreading mechanism. It has an inlet horizontal shaping part for feeding the carbon fiber tow horizontally into the carbon fiber anti-twist and wrinkle reduction mechanism. It has an outlet horizontal shaping part that allows the carbon fiber tow to be horizontally sent out of the carbon fiber anti-twist and wrinkle reduction mechanism. The invention also comprises a vertical shaping part for pressing and tensioning the carbon fiber bundle along the vertical direction between the inlet horizontal shaping part and the outlet horizontal shaping part.

2. The carbon fiber impregnation equipment according to claim 1, characterized in that: The inlet horizontal shaping part comprises a first mounting frame, on which a first upper horizontal pressing plate and a first lower horizontal pressing plate corresponding to the first upper horizontal pressing plate are arranged, and a first horizontal passing gap suitable for the carbon fiber tow to pass through is provided between the first upper horizontal pressing plate and the first lower horizontal pressing plate; When the carbon fiber tow passes through the first horizontal passing gap, the first upper horizontal pressing plate and the first lower horizontal pressing plate together press the carbon fiber tow flat along the thickness direction of the carbon fiber tow.

3. The carbon fiber impregnation equipment according to claim 2, characterized in that: The outlet horizontal shaping part includes a second mounting frame, on which a second upper horizontal pressing plate and a second lower horizontal pressing plate corresponding to the second upper horizontal pressing plate are arranged, and a second horizontal passing gap suitable for the carbon fiber tow to pass through is provided between the second upper horizontal pressing plate and the second lower horizontal pressing plate; When the carbon fiber tow passes through the second horizontal passing gap, the second upper horizontal pressing plate and the second lower horizontal pressing plate together press the carbon fiber tow flat along the thickness direction of the carbon fiber tow.

4. The carbon fiber impregnation equipment according to claim 3, characterized in that: The vertical shaping part includes a support frame, on which a tensioning column is arranged along the width direction of the carbon fiber prepreg; in the feeding direction, the tensioning column is located between the first horizontal through gap and the second horizontal through gap; The tensioning column has a pressing portion protruding in the vertical direction; the pressing portion forms a height difference with the first horizontal through gap and the second horizontal through gap, and the height difference has the same direction.

5. The carbon fiber impregnation equipment according to claim 4, characterized in that: The top pressing part has a group of carbon fiber shaping surfaces, the group of carbon fiber shaping surfaces includes an oblique entry surface, an oblique delivery surface, and an arc-shaped continuous surface for connecting the oblique entry surface and the oblique delivery surface, the oblique entry surface is inclined toward the first horizontal direction of passing through the gap, and the oblique delivery surface is inclined toward the second horizontal direction of passing through the gap; After passing through the first horizontal through gap, the carbon fiber tow reaches the oblique entry surface, the arc-shaped continuous surface, and the oblique delivery surface in sequence, and then passes through the second horizontal through gap.

6. The carbon fiber impregnation equipment according to claim 5, characterized in that: The pressing portion is protruding upward, and the first horizontal through gap and the second horizontal through gap are both lower than the pressing portion; A first guide wing plate is formed on one side of the first upper horizontal pressing plate corresponding to the first horizontal through-gap through-hole, and the first guide wing plate is inclined toward the top pressing portion; A second guide wing plate is formed on one side of the second upper horizontal pressing plate corresponding to the second horizontal through-hole through the gap, and the second guide wing plate is inclined toward the top pressing portion.

7. The carbon fiber impregnation equipment according to claim 6, characterized in that: When the arc-shaped continuous surface is upwardly pressed to tension the carbon fiber tow, the first guide wing plate has a first guide inclined surface corresponding to the carbon fiber tow, and the second guide wing plate has a second guide inclined surface corresponding to the carbon fiber tow; The first guiding inclined surface is located below the surface where the oblique entry surface is located; The second guiding inclined surface is located below the surface where the inclined delivery surface is located.

8. The carbon fiber impregnation equipment according to any one of claims 1 to 7, characterized in that: The first mounting frame is provided with a first height adjustment assembly for independently adjusting the height of the first upper horizontal pressing plate and independently adjusting the height of the first lower horizontal pressing plate.

9. The carbon fiber impregnation equipment according to claim 8, characterized in that: The second mounting frame is provided with a second height adjustment assembly for independently adjusting the height of the second upper horizontal pressing plate and independently adjusting the height of the second lower horizontal pressing plate.

10. The carbon fiber impregnation equipment according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 9, characterized in that: Both ends of the tensioning column are connected to a rotating shaft, and the support frame is provided with an angle adjustment component for adjusting the rotation angle of the rotating shaft; The outer peripheral surface of the column body of the tension column is composed of multiple groups of carbon fiber shaping surfaces connected in sequence; When the arc-shaped continuous surfaces of different groups of carbon fiber shaping surfaces are located directly above, different oblique entry surfaces have different top pressure slopes on the carbon fiber tows, and different oblique delivery surfaces have different top pressure slopes on the carbon fiber tows.

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