CN116494569B - Carbon fiber prepreg stacking and forming equipment - Google Patents

Abstract

The invention relates to the technical field of carbon fiber processing, in particular to carbon fiber prepreg stacking and forming equipment, which comprises a bottom plate, wherein a threading device, a flattening device, a bearing device, a rolling device and a cooling device are sequentially arranged at the upper end of the bottom plate from left to right. The existing method is that a plurality of carbon fiber bundles pass through between two driving rollers and then are mixed with epoxy resin to form carbon fiber prepreg, the method reduces the operation steps of weaving the carbon fiber bundles into cloth, improves the production efficiency, but after the carbon fiber bundles are tiled, the carbon fiber bundles still have partial accumulation, so that the quality of the carbon fiber prepreg is reduced. The dispersing unit adopted by the carbon fiber prepreg stacking and forming equipment can be matched with the moving mechanism to push the carbon fiber bundles back and forth, so that carbon fibers of the carbon fiber bundles are prevented from being stacked, and the problem that the thicknesses of the carbon fibers are inconsistent during stacking is avoided.

Description

A carbon fiber prepreg stack compression molding equipment

technical field

The invention relates to the technical field of carbon fiber processing, in particular to a carbon fiber prepreg stack compression molding equipment.

Background technique

Carbon fiber prepreg refers to a composite material that composites epoxy resin on carbon fiber through stacking technology; carbon fiber prepreg is mainly composed of carbon fiber, epoxy resin, release paper and other materials, after coating, hot pressing, cooling, etc. , Laminating, coiling and other processes.

The carbon fiber required for carbon fiber prepreg is usually wound in bundles on the winding drum. When forming carbon fiber prepreg, the carbon fiber bundle can be woven into carbon fiber cloth and then mixed with epoxy resin to form carbon fiber prepreg. It is also possible to directly spread multi-volume carbon fiber bundles and mix them with epoxy resin to form carbon fiber prepreg. Passing between the transmission rollers, through the upper and lower transmission rollers, multiple carbon fiber bundles are flattened, and then mixed with epoxy resin to form carbon fiber prepreg. This method is simple and convenient to operate, and reduces the cost of weaving carbon fiber bundles into cloth. The operation steps reduce the cost input and improve the production efficiency.

However, when the above method is flattening the carbon fiber bundles, the carbon fiber bundles can only be processed by extrusion, and the carbon fiber bundles after the flattening still have the problem of partial accumulation, which leads to the subsequent mixing of carbon fibers and epoxy resins. The phenomenon of inconsistent thickness occurs, which reduces the quality of carbon fiber prepreg.

Contents of the invention

Technical problem to be solved: The present invention provides a carbon fiber prepreg stack compression molding equipment, which can solve the above-mentioned problems existing in the molding of carbon fiber prepreg.

Technical solution: In order to achieve the above purpose, the present invention adopts the following technical solution, a carbon fiber prepreg stacking press molding equipment, including a base plate, and the top of the base plate is sequentially installed with a threading device, a flattening device, and a storage device from left to right , rolling device and cooling device.

The threading device includes a support plate installed on the top of the base plate, a threading plate is installed on the top of the support plate, a moving mechanism is installed on the right end of the threading plate, and a plurality of dispersing mechanisms for dispersing carbon fiber bundles are installed staggered up and down on the moving mechanism.

A plurality of circular holes for carbon fiber bundles to pass through are provided staggered up and down on the threading plate, and a cylinder mounted on the threading plate is arranged between the circular holes and the middle of the threading plate.

As a preferred technical solution of the present invention, the moving mechanism includes two connecting blocks symmetrically installed on the threading plate. The middle part of the connecting block is vertically installed with a two-way electric push rod, and the upper and lower ends of the two-way electric push rod Sliding frames are installed on both of them, and a connecting bar is installed in the two sliding frames at the same height, and a dispersing mechanism is installed on the connecting bar, and a pushing unit is installed at the front end of the connecting block located on the front side.

As a preferred technical solution of the present invention, the dispersing mechanism includes a support frame installed at the right end of the column, the support frame is a U-shaped structure with an opening facing the direction of the connecting bar, and the inner end of the middle section of the support frame is rotatably connected with a rotating roller. There are sliding grooves on the front and rear side walls of the support frame, and a connecting frame is installed at one end of the supporting frame close to the connecting bar. The connecting frame has a U-shaped structure with an opening facing the supporting frame. A lifting rod installed on the connecting bar is arranged inside, and a dispersing unit is installed on the end of the lifting rod far away from the connecting bar.

As a preferred technical solution of the present invention, the dispersing unit includes a U-shaped roller frame with an opening facing the rotating roller and installed on the lifting rod. A dispersing roller is rotatably connected to the roller frame, and the front and rear of the roller frame Two connection springs are installed symmetrically, and the end of the connection spring away from the roller frame is provided with a guide plate slidingly matched with the slide groove.

As a preferred technical solution of the present invention, the push unit includes a push rod installed at the front end of the front connecting block, a guide rod is installed at the front end of the push rod, and the guide rod slides with the two connecting bars Through fit.

As a preferred technical solution of the present invention, the flattening device includes two T-shaped frames symmetrically installed on the upper end of the bottom plate, and flattening rollers are rotatably connected at four corners between the two T-shaped frames.

As a preferred technical solution of the present invention, the receiving device includes a mounting plate installed on the upper end of the base plate. As for the bit ring, two heating modules installed on the mounting plate are symmetrically arranged up and down between the two placement columns.

As a preferred technical solution of the present invention, the rolling device includes two rolling frames symmetrically installed on the upper end of the bottom plate. The rear end of the pressure roller is equipped with a transmission gear, and the two transmission gears are meshed. The rear end of the transmission gear located on the lower side is fixedly connected with the output shaft of the drive motor, and the drive motor is fixedly connected with the roller press frame through the motor seat.

As a preferred technical solution of the present invention, the cooling device includes two installation frames symmetrically installed on the top of the bottom plate, and two cooling modules are installed symmetrically up and down between the two installation frames.

As a preferred technical solution of the present invention, rounded corners are provided on the right side of the inner end of the middle section of the support frame.

Beneficial effects: 1. The dispersing unit used in the carbon fiber prepreg stacking molding equipment provided by the present invention can disperse and flatten the carbon fiber bundles, and the carbon fiber bundles can cooperate with the moving mechanism to reciprocate and push the carbon fiber bundles, avoiding The carbon fibers in the carbon fiber bundles are piled up, which ensures the smoothness of the carbon fiber distribution and avoids the problem of inconsistent thickness of the carbon fibers during stacking.

2. The adjacent side walls of the upper and lower staggered dispersing mechanisms adopted by the carbon fiber prepreg stacking molding equipment provided by the present invention are on the same vertical line, that is, the carbon fiber bundles in the multiple dispersing mechanisms move to the same plane There is no excessive gap in the end, which improves the uniformity of carbon fiber bundle distribution and ensures the quality of carbon fiber prepreg.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is a schematic perspective view of the first perspective structure of the present invention.

Fig. 2 is a schematic diagram of a perspective structure of a second viewing angle of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a left side view of the present invention.

Fig. 5 is a sectional view of A-A in Fig. 3 of the present invention.

Fig. 6 is an enlarged view of N in Fig. 5 of the present invention.

Fig. 7 is a sectional view of B-B in Fig. 4 of the present invention.

Fig. 8 is a working diagram of the present invention.

In the figure: 1, bottom plate; 2, threading device; 21, support plate; 22, threading plate; 221, circular hole; 222, cylinder; 23, moving mechanism; 231, connecting block; 232, two-way electric push rod; 233 , sliding frame; 234, connecting bar; 235, pushing unit; 2351, pushing push rod; 2352, guide rod; 24, dispersion mechanism; 241, supporting frame; 242, rotating roller; Rod; 245, dispersing unit; 2451, roller frame; 2452, dispersing roller; 2453, connecting spring; 2454, guide plate; 3, flattening device; 31, T-frame; 32, flattening roller; 4, bearing device; 41. mounting plate; 42. placement column; 43. limit ring; 44. heating module; 5. rolling device; 51. rolling frame; 52. rolling roller; 53. transmission gear; 54. driving motor 6. Cooling device; 61. Mounting frame; 62. Cooling module.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

Referring to Fig. 1-Fig. 4, a carbon fiber prepreg stacking molding equipment includes a bottom plate 1, and the upper end of the bottom plate 1 is sequentially installed with a threading device 2, a flattening device 3, a holding device 4, and a rolling press from left to right. device 5 and cooling device 6.

5 and 7, the threading device 2 includes a support plate 21 installed on the upper end of the base plate 1, a threading plate 22 is installed on the upper end of the support plate 21, a moving mechanism 23 is installed on the right end of the threading plate 22, and the moving mechanism 23 moves up and down. A plurality of dispersing mechanisms 24 for dispersing carbon fiber bundles are installed in a staggered manner.

Referring to FIG. 7 , the threading plate 22 is staggered up and down with a plurality of circular holes 221 for carbon fiber bundles to pass through, and a cylinder 222 installed on the threading plate 22 is arranged between the circular holes 221 and the middle of the threading plate 22 .

Referring to Fig. 7 and Fig. 8, during specific work, one end of a plurality of carbon fiber bundle rolls is manually pulled through the existing drawbar respectively, and a plurality of carbon fiber bundles pass through a plurality of circular holes 221 on the threading plate 22 respectively, and then the carbon fiber The bundle passes through a dispersion mechanism 24, which flattens the carbon fiber bundle.

Referring to Fig. 2 and Fig. 5, the moving mechanism 23 includes two connecting blocks 231 symmetrically installed on the threading plate 22 front and rear, and a two-way electric push rod 232 is installed vertically through the middle of the connecting block 231, and the two-way electric push rod 232 Sliding frames 233 are installed at both ends of the upper and lower ends, and a connecting bar 234 is installed in the two sliding frames 233 at the same height, and a dispersion mechanism 24 is installed on the connecting bar 234. Unit 235.

5-7, the dispersion mechanism 24 includes a support frame 241 mounted on the right end of the column 222. The support frame 241 is a U-shaped structure with an opening facing the connecting bar 234. The inner end of the support frame 241 is rotatably connected to a Turning roller 242, all offer sliding groove on the front and rear sidewalls of support frame 241, support frame 241 is equipped with connecting frame 243 near one end of connecting bar 234, connecting frame 243 is the U-shaped structure that opening faces supporting frame 241, connecting frame 243 The middle section is provided with a guide through hole, and the guide through hole is pierced with a lifting rod 244 installed on the connecting bar 234. The end of the lifting rod 244 away from the connecting bar 234 is equipped with a dispersion unit 245, and the right side of the inner end of the supporting frame 241 middle section Set with rounded corners.

Referring to Fig. 2, Fig. 5, Fig. 6 and Fig. 7, during specific work, the carbon fiber bundles passing through the plurality of circular holes 221 are manually passed through the corresponding support frame 241, and then the plurality of carbon fiber bundles are passed through the press Leveling device 3, then start two two-way electric push rods 232, the two two-way electric push rods 232 drive the two connecting bars 234 to approach each other through the sliding frame 233 distributed up and down, and the two connecting bars 234 drive a plurality of elevating rods 244 to support The frame 241 moves in the direction, and the lifting rod 244 drives the dispersing unit 245 to press the carbon fiber bundle to the rotating roller 242 on the support frame 241. The rounded corner provided on the right side of the end of the support frame 241 near the connecting frame 243 facilitates the movement of the carbon fiber bundle. Avoid damage to the carbon fiber strands.

Referring to Fig. 6, the dispersing unit 245 includes a U-shaped structure and a roller frame 2451 installed on the lifting rod 244 with the opening facing the rotating roller 242. The dispersing roller 2452 is rotatably connected to the roller frame 2451, and the roller frame 2451 Two connection springs 2453 are mounted symmetrically front and back, and a guide plate 2454 that is slidably matched with the sliding groove is mounted on the end of the connection springs 2453 away from the roller frame 2451 .

Referring to Figure 6, during specific work, the elevating rod 244 drives the dispersing roller 2452 to slide in the sliding groove of the support frame 241 through the roller frame 2451 and pushes the carbon fiber bundle to the rotating roller 242 for extrusion, and the carbon fiber bundle is dispersed under pressure. And flat on the dispersing roller 2452, so as to facilitate the uniform mixing of carbon fiber bundles and resin, while the roller frame 2451 moves, the connecting spring 2453 drives the guide plate 2454 to slide in the sliding groove of the support frame 241.

2 and 5, the pushing unit 235 includes a pushing rod 2351 mounted on the front end of the front connecting block 231, a guide rod 2352 is installed on the front end of the pushing rod 2351, and the guide rod 2352 is connected to the two described The connecting strip 234 is a slide through fit.

Referring to Fig. 2, Fig. 5, Fig. 6 and Fig. 7, during specific work, after the dispersing roller 2452 pushes the carbon fiber bundle onto the rotating roller 242, the pushing push rod 2351 is started, and the pushing push rod 2351 is driven by the guide rod 2352 The two connecting bars 234 move reciprocally and laterally, and the connecting bars 234 drive the roller frame 2451 and the dispersing roller 2452 to reciprocate and laterally move through a plurality of elevating rods 244, and the dispersing roller 2452 moving laterally cooperates with the rotating roller 242, and the accumulated carbon fiber bundles For further paving, the width of the paved carbon fiber bundles is the same as the width of the opening of the support frame 241, and the adjacent side walls of the support frames 241 that are staggered up and down are on the same vertical line. After the carbon fiber bundles move to the same plane, there is no excessive gap, thereby improving the uniformity of the distribution of the carbon fiber bundles and ensuring the quality of the carbon fiber prepreg. While the roller frame 2451 is moving laterally, the roller frame 2451 respectively adjusts the two The connecting spring 2453 pulls and applies pressure, and the connecting spring 2453 plays a role of buffering the roller frame 2451 .

Referring to FIG. 7 , the flattening device 3 includes two T-shaped frames 31 symmetrically installed on the upper end of the bottom plate 1 front and rear, and flattening rollers 32 are rotatably connected at four corners between the two T-shaped frames 31 .

Referring to Fig. 7 and Fig. 8, during concrete work, flattening roller 32 is existing motorized roller, starts flattening roller 32, and two flattening rollers 32 carry out flattening and setting again to the flat carbon fiber bundle, guarantees flattening When the carbon fiber bundle enters the subsequent operation, the surface is in a flat state, so as to avoid the bulge on the surface of the flat carbon fiber bundle and reduce the quality of the carbon fiber prepreg.

Referring to Fig. 7, the receiving device 4 includes a mounting plate 41 mounted on the upper end of the base plate 1, and the front end of the mounting plate 41 is symmetrically rotated up and down and connected with two placing posts 42, and the placing posts 42 are provided with two front and back symmetrically set The position ring 43 and two heating modules 44 installed on the mounting plate 41 are arranged symmetrically up and down between the two placement columns 42 .

Referring to Fig. 7 and Fig. 8, during specific work, before work, set two release paper rolls with resin on the two placement columns 42 through the existing hoisting settings, and then start the upper and lower heating modules 44, The heating module 44 is an existing heating plate, and the flat carbon fiber bundle coming out from between the upper and lower two flattening rollers 32 passes between the upper and lower heating modules 44, and the upper and lower heating modules 44 heat the surface of the carbon fiber bundle , so that it can be better combined with the resin afterwards, manually pull the ends of the two release papers, and attach them to the heated carbon fiber bundles, and the release paper and the carbon fiber bundles move to the rolling device 5 together.

Referring to Fig. 2 and Fig. 7, the rolling device 5 includes two rolling frames 51 symmetrically installed on the upper end of the bottom plate 1 front and rear, and two rolling rollers 52 are connected in a symmetrical rotation up and down between the two rolling frames 51. , the rolling roller 52 rear end is equipped with a transmission gear 53, the two transmission gears 53 are meshed, and the transmission gear 53 rear end on the lower side is fixedly connected with the output shaft of the drive motor 54, and the drive motor 54 is connected to the roller by the motor base. Frame 51 is fixedly connected.

Referring to Fig. 2, Fig. 7 and Fig. 8, during specific work, start the driving motor 54, and the driving motor 54 drives the two transmission gears 53 to rotate relatively, thereby driving the two rolling rollers 52 to rotate relatively, and the release paper and the carbon fiber bundle move to Between the two rolling rollers 52, the two rolling rollers 52 roll the release paper and the carbon fiber bundles, press the resin on the release paper onto the carbon fiber bundles, so that the resin wraps the carbon fiber bundles, and the rolled The carbon fiber bundle moves to continue to move to cooling device 6 places.

Referring to FIG. 7 , the cooling device 6 includes two installation frames 61 symmetrically installed on the upper end of the bottom plate 1 front and rear, and two cooling modules 62 are installed vertically and symmetrically between the two installation frames 61 .

Referring to Fig. 7 and Fig. 8, the cooling module 62 is an existing cooling plate. During specific work, the rolled carbon fiber bundle passes between the two cooling modules 62, and the cooling module 62 cools the rolled carbon fiber bundle , so that the resin is attached to the carbon fiber bundles to form a carbon fiber prepreg, and then the upper release paper is removed, and then the carbon fiber prepreg is coated and rolled through the existing winding equipment.

When using the present invention specifically: S1: Set two release paper rolls with resin on two placement columns 42 through the existing hoisting arrangement, and then manually pull a plurality of carbon fiber bundle rolls through the existing drawbar A plurality of carbon fiber bundles pass through a plurality of circular holes 221 on the threading plate 22, and then pass the carbon fiber bundles through the dispersing mechanism 24, and the moving mechanism 23 cooperates with the dispersing mechanism 24 to pave the carbon fiber bundles.

S2: Start the flattening roller 32, and the upper and lower two flattening rollers 32 will flatten and shape the flattened carbon fiber bundle again, start the upper and lower two heating modules 44, and the flattened carbon fiber coming out from between the upper and lower two flattening rollers 32 The bundle passes between the upper and lower heating modules 44, and the upper and lower heating modules 44 heat the surface of the carbon fiber bundle to make it better combined with the resin, manually pull the ends of the two release papers, and paste them Combined on the heated carbon fiber bundle, the release paper and the carbon fiber bundle move to the rolling device 5 together.

S3: Start the driving motor 54, the driving motor 54 drives the two transmission gears 53 to rotate relatively, thereby driving the two rolling rollers 52 to rotate relatively, the release paper and the carbon fiber bundle move between the two rolling rollers 52, and the two rolling rollers The pressing roller 52 rolls the release paper and the carbon fiber bundle, and presses the resin on the release paper onto the carbon fiber bundle, so that the resin wraps the carbon fiber bundle.

S4: The rolled carbon fiber bundles pass between the two cooling modules 62, and the cooling module 62 cools the rolled carbon fiber bundles, so that the resin adheres to the carbon fiber bundles to form a carbon fiber prepreg, and then the upper layer is separated The type paper is removed, and then the carbon fiber prepreg is coated and rolled through the existing winding equipment, and the processing is completed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. Carbon fiber prepreg stacking and molding equipment comprises a bottom plate (1), and is characterized in that: the upper end of the bottom plate (1) is provided with a threading device (2), a flattening device (3), a bearing device (4), a rolling device (5) and a cooling device (6) in sequence from left to right; wherein:

the threading device (2) comprises a supporting plate (21) arranged at the upper end of the bottom plate (1), a threading plate (22) is arranged at the upper end of the supporting plate (21), a moving mechanism (23) is arranged at the right end of the threading plate (22), and a plurality of dispersing mechanisms (24) for dispersing carbon fiber bundles are arranged on the moving mechanism (23) in an up-and-down staggered manner;

a plurality of round holes (221) for the carbon fiber bundles to pass through are formed in the threading plate (22) in an up-down staggered manner, and a cylinder (222) arranged on the threading plate (22) is arranged between the round holes (221) and the middle part of the threading plate (22);

the moving mechanism (23) comprises two connecting blocks (231) which are symmetrically arranged on the threading plate (22) from front to back, a bidirectional electric push rod (232) is vertically arranged in the middle of the connecting blocks (231) in a penetrating mode, sliding frames (233) are arranged at the upper end and the lower end of each bidirectional electric push rod (232), connecting strips (234) are jointly arranged in the two sliding frames (233) at the same height in a penetrating mode, a dispersing mechanism (24) is arranged on each connecting strip (234), and a pushing unit (235) is arranged at the front end of each connecting block (231) at the front side;

the dispersing mechanism (24) comprises a supporting frame (241) arranged at the right end of the cylinder (222), the supporting frame (241) is of a U-shaped structure with an opening facing the direction of the connecting strip (234), the inner end in the middle of the supporting frame (241) is rotationally connected with a rotating roller (242), sliding grooves are formed in the front side wall and the rear side wall of the supporting frame (241), a connecting frame (243) is arranged at one end, close to the connecting strip (234), of the supporting frame (241), the connecting frame (243) is of a U-shaped structure with an opening facing the supporting frame (241), a guide through hole is formed in the middle section of the connecting frame (243), a lifting rod (244) arranged on the connecting strip (234) in a penetrating manner is arranged in the guide through hole, and a dispersing unit (245) is arranged at one end, far away from the connecting strip (234), of the lifting rod (244);

the dispersing unit (245) comprises a roller frame (2451) which is U-shaped in structure and is provided with an opening facing the rotating roller (242) and arranged on the lifting rod (244), the roller frame (2451) is rotationally connected with a dispersing roller (2452), two connecting springs (2453) are symmetrically arranged on the front and back of the roller frame (2451), and one end, far away from the roller frame (2451), of the connecting springs (2453) is provided with a guide plate (2454) which is in sliding fit with the sliding groove;

the pushing unit (235) comprises a pushing push rod (2351) arranged at the front end of the front connecting block (231), a guide rod (2352) is arranged at the front end of the pushing push rod (2351), and the guide rod (2352) is in sliding penetrating fit with the two connecting strips (234);

the right side of the inner end of the middle section of the supporting frame (241) is provided with a round angle.

2. A carbon fiber prepreg stacking molding apparatus as recited in claim 1, wherein: the flattening device (3) comprises two T-shaped frames (31) which are symmetrically arranged at the upper end of the bottom plate (1) from front to back, and flattening rollers (32) are rotationally connected at four corners between the two T-shaped frames (31).

3. A carbon fiber prepreg stacking molding apparatus as recited in claim 1, wherein: the bearing device (4) comprises a mounting plate (41) arranged at the upper end of the bottom plate (1), two placing columns (42) are symmetrically connected to the front end of the mounting plate (41) in a vertically symmetrical mode, two limiting rings (43) are symmetrically sleeved on the placing columns (42) in a front-back mode, and two heating modules (44) arranged on the mounting plate (41) are symmetrically arranged between the two placing columns (42) in a vertically symmetrical mode.

4. A carbon fiber prepreg stacking molding apparatus as recited in claim 1, wherein: the rolling device (5) comprises two rolling frames (51) which are arranged at the upper end of the bottom plate (1) in a front-back symmetrical mode, two rolling rollers (52) are connected between the two rolling frames (51) in a vertically symmetrical mode in a rotating mode, a transmission gear (53) is arranged at the rear end of each rolling roller (52), the two transmission gears (53) are meshed, an output shaft of a driving motor (54) is fixedly connected to the rear end of each transmission gear (53) located at the lower side, and the driving motor (54) is fixedly connected with the rolling frames (51) through a motor base.

5. A carbon fiber prepreg stacking molding apparatus as recited in claim 1, wherein: the cooling device (6) comprises two mounting frames (61) which are symmetrically arranged at the upper end of the bottom plate (1) front and back, and two cooling modules (62) are symmetrically arranged between the two mounting frames (61) up and down.