Carbon fiber prepreg laying device

Abstract

The invention discloses a carbon fiber prepreg laying device which is good in economic performance, simple in processing and high in laying efficiency, and ensures the product yield. The device comprises an operation table which comprises an alignment area and a fitting area, and foot pads are fixedly arranged at the four corners of the bottom of the operation table respectively; the pressing roller assembly comprises two side supports, a connecting cross beam, a screw servo mechanism, a pressing roller connecting base and a pressing roller, the two side supports are located on the upper surfaces of the two sides of the attaching area of the operation table, the two ends of the connecting cross beam are supported on the upper portions of the side supports respectively, the screw servo mechanism is placed on the connecting cross beam, and the pressing roller connecting base is connected with the screw servo mechanism. The compression roller connecting base is installed at the lower output end of the screw servo mechanism, the two ends of a roller shaft of the compression roller protrude laterally and are provided with corresponding connecting holes of lower protruding plates at the two ends of the compression roller connecting base respectively, and the lower roller face of the compression roller is used for pressing laminated carbon fiber prepreg within the attaching area range; and a temperature control heating plate.

Description

Technical Field

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

[0002] Carbon fiber prepregs need to be stacked to complete the composite of carbon fiber materials. There are two existing methods for laying carbon fiber prepregs. The first is manual laying, which is to stack several layers of carbon fiber prepreg on a plane and then press them through gravity pressing equipment. Although it is simple to operate and low in cost, it has low processing efficiency, low bonding accuracy, and the presence of bubbles between layers affects the yield rate. The second method uses fully automatic bonding, which is to lay and press layers through fully automatic bonding. In actual use, each carbon fiber prepreg of different sizes requires a set of molds of corresponding sizes, which makes the operation cost high, the equipment maintenance cost is high, and it is limited by the experience of the operator. For this reason, it is urgently needed to develop a laying device that takes into account economy, simple processing, high efficiency, and high yield of finished products. Summary of the invention

[0003] In view of the above problems, the present invention provides a carbon fiber prepreg laying device, which has good economic performance, simple processing, high laying efficiency, and ensures product yield.

[0004] A carbon fiber prepreg laying device, characterized in that it comprises:

[0005] The operating table includes an alignment area and a laminating area, and the four corners of the bottom of the operating table are respectively fixed with feet;

[0006] A pressure roller assembly, comprising two side supports, a connecting crossbeam, a screw servo mechanism, a pressure roller connecting seat, and a pressure roller, wherein the two side supports are located on the upper surface of the two side positions of the bonding area of ​​the operating table, the two ends of the connecting crossbeam are respectively supported on the upper part of the side supports, the screw servo mechanism is placed on the connecting crossbeam, the lower output end of the screw servo mechanism is installed with the pressure roller connecting seat, the two ends of the roller shaft of the pressure roller are respectively convex and installed with corresponding connecting holes of the lower convex plates at both ends of the pressure roller connecting seat, and the lower roller surface of the pressure roller is used for pressing the laminated carbon fiber prepreg within the bonding area;

[0007] and temperature-controlled heating plates;

[0008] The temperature-controlled heating plate is fixedly arranged at the bottom of the central area of ​​the bonding area of ​​the operating table, and a pressing roller is arranged to reciprocate along the connecting beam on the upper surface of the central area, and the axial length of the pressing roller covers the corresponding length of the central area of ​​the bonding area;

[0009] A pair of vertical pressure strips are arranged on a pair of outer vertical edges of the alignment area of ​​the operating table, and the pair of vertical pressure strips are arranged on the alignment area protruding from the operating table surface to form an alignment vertical coordinate system, which enables the stacked carbon fiber prepreg to be positioned and laid with the vertical coordinate system as the 0 point.

[0010] It is further characterized by:

[0011] The pressure roller is provided with an air cavity inside, and the weight of the pressure roller can be adjusted by pneumatic inflation or degassing, so as to reliably press the stacked and aligned carbon fiber prepregs of different thicknesses, improve the tightness of the fit, and squeeze out the excess air;

[0012] The pair of vertical pressure strips includes a first pressure strip and a second pressure strip, wherein one of the pressure strips is provided with a concave notch on one side corresponding to the 0-point position, and the concave notch facilitates the operator to take out the entire material from the position;

[0013] The screw servo mechanism comprises a screw, a screw nut, and a power output mechanism, wherein the two ends of the screw are respectively positioned and supported by the supporting bearing mechanisms on both sides, the screw nut is threadedly sleeved on the screw, and the screw nut is fixedly connected to the power output mechanism;

[0014] The power output mechanism includes an upper connecting plate, two side connecting plates, and a lower connecting block. A pair of guide rods are also provided between the two side supports. The guide rods are arranged parallel to the length direction of the connecting crossbeam. The upper connecting plate is fixedly connected to the upper surface of the screw nut. The two sides of the upper connecting plate are respectively fixedly connected to the inner ends of the side connecting plates. After the side connecting plates on both sides are bent to avoid the connecting crossbeam, the lower ends of the outer ends thereof are fixedly connected to the upper surface of the corresponding position of the lower connecting block. The lower connecting block is provided with a guide hole corresponding to the position of the guide rod. The guide rod is arranged through the guide hole. The lower connecting block reciprocates along the straight direction of the guide rod to drive the pressure roller to press the carbon fiber prepreg.

[0015] One end of the screw is externally connected to a servo motor, and the number of times the pressing roller presses the carbon fiber prepreg is completed by setting the forward and reverse rotation of the servo motor to achieve reliable pressing;

[0016] The two ends of the lower connecting block are respectively fixed to the upper surface of the pressure roller connecting seat through L-shaped connecting blocks, which ensures that the assembly of the pressure roller is stable and reliable;

[0017] The temperature-controlled heating plate is preset in a bottom mounting frame, and the bottom mounting frame is fixed to the bottom of the central area of ​​the fitting area of ​​the operating table by surrounding fasteners;

[0018] The bottom mounting frame includes a surrounding frame and a bottom plate, the temperature control heating plate is placed in a space formed by the surrounding frame and the bottom plate, and the temperature control heating plate is supported on the upper surface of the bottom plate;

[0019] The surrounding frames and bottom plate are all made of heat-insulating materials to ensure that heat is conducted to the carbon fiber prepreg through the operating table.

[0020] After adopting the above technical scheme, a sufficiently large operating table is selected so that the surface area of ​​the alignment area and the bonding area covers the sizes of carbon fiber prepreg layers of all models and sizes in the factory. Then, the bottom carbon fiber prepreg layer is placed in the alignment area through the 0 point and the inner sides of the first and second beading strips, and then the carbon fiber prepreg layers are aligned and placed layer by layer through the 0 point and the inner sides of the first and second beading strips. The contact surfaces of adjacent carbon fiber prepregs are bonded by epoxy resin. Then, the integral carbon fiber prepreg stack is transferred to the bonding area, the temperature-controlled heating plate is turned on, and the pressure roller is driven manually or by a motor to reciprocate along the length direction of the connecting beam, thereby increasing the viscosity of the epoxy resin and improving the bonding tightness. It innovatively combines the pressure roller and the temperature-controlled heating plate to improve the bonding effect; it has good economic performance, simple processing, high laying efficiency, and ensures product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 The three-dimensional structure after removing the upper cover of the connecting crossbeam of the present invention Figure 1 ;

[0023] Figure 3 The three-dimensional structure after removing the upper cover of the connecting crossbeam of the present invention Figure 2 ;

[0024] Figure 4 It is a schematic three-dimensional assembly diagram of the temperature control heating plate of the present invention;

[0025] The names corresponding to the serial numbers in the figure are as follows:

[0026] Operating table 10, alignment area 101, laminating area 102, pressure roller assembly 20, side support 21, support cover 211, connecting crossbeam 22, upper cover 221, screw servo mechanism 23, pressure roller connecting seat 24, pressure roller 25, roller shaft 251, guide rod 26, temperature control heating plate 30, pad 40, carbon fiber prepreg 50, vertical pressure strip 60, first pressure strip 61, second pressure strip 62, inner concave notch 601, screw 70, screw nut 80, power output mechanism 90, upper connecting plate 91, two side connecting plates 92, lower connecting block 93, L-shaped connecting block 94, bottom mounting frame 100;

[0027] Surrounding frame 1, bottom plate 2, hole groove 3. DETAILED DESCRIPTION

[0028] A carbon fiber prepreg laying device, see Figure 1-Figure 4 , which includes an operating table 10, a pressure roller assembly 20, and a temperature-controlled heating plate 30;

[0029] The operating table 10 includes an alignment area 101 and a bonding area 102. The four corners of the bottom of the operating table 10 are respectively fixed with feet 40.

[0030] The pressure roller assembly 20 includes two side supports 21, a connecting crossbeam 22, a screw servo mechanism 23, a pressure roller connecting seat 24, and a pressure roller 25. The two side supports 21 are located on the upper surface of the two side positions of the bonding area 102 of the operating table 10. The two ends of the connecting crossbeam 22 are respectively supported on the upper part of the side supports 21. The screw servo mechanism 23 is placed on the connecting crossbeam 22. The lower output end of the screw servo mechanism 23 is installed with a pressure roller connecting seat 24. The two ends of the roller shaft 251 of the pressure roller 25 are respectively convex and installed with corresponding connecting holes of the two end lower convex plates of the pressure roller connecting seat 24. The lower roller surface of the pressure roller 25 is used for pressing and bonding the laminated carbon fiber prepreg 50 within the bonding area 102.

[0031] A temperature-controlled heating plate 30 is fixedly disposed at the bottom of the central area of ​​the laminating area 102 of the operating table 10, and a pressing roller 25 is disposed on the upper surface of the central area to reciprocate along the connecting beam 22, and the axial length of the pressing roller 25 covers the corresponding length of the central area of ​​the laminating area 102;

[0032] A pair of vertical strips 60 are provided on a pair of outer vertical edges of the alignment area 101 of the operating table 10. The pair of vertical strips 60 are arranged in the alignment area protruding from the operating table surface to form an alignment vertical coordinate system, which enables the stacked carbon fiber prepreg 50 to be positioned and laid with the vertical coordinate system as the 0 point.

[0033] In specific implementation, an air cavity is provided inside the pressing roller 25, and the weight of the pressing roller 25 can be adjusted by pneumatic inflation or degassing, so as to reliably press the stacked and aligned carbon fiber prepregs 50 of different thicknesses, improve the tightness of the fit, and squeeze out the excess air;

[0034] A pair of vertical pressure strips 60 includes a first pressure strip 61 and a second pressure strip 62, wherein a concave notch 601 is provided on one side of one of the pressure strips corresponding to the 0-point position, and the concave notch 601 facilitates the operator to take out the entire material from the position;

[0035] The screw servo mechanism 23 includes a screw 70, a screw nut 80, and a power output mechanism 90. The two ends of the screw 70 are respectively positioned and supported by the support bearing mechanisms on both sides. The screw nut 80 is threadedly mounted on the screw 70, and the screw nut 80 is fixedly connected to the power output mechanism 90.

[0036] The power output mechanism 90 includes an upper connecting plate 91, two side connecting plates 92, and a lower connecting block 93. A pair of guide rods 26 are also arranged between the two side supports 21. The guide rods 26 are arranged parallel to the length direction of the connecting beam 22. The upper connecting plate 91 is fixed to the upper surface of the screw nut 80. The two sides of the upper connecting plate 91 are respectively fixed to the inner ends of the side connecting plates 92. After the side connecting plates 92 on both sides are bent to avoid the connecting beam 22, the lower ends of the outer ends are fixed to the corresponding upper surfaces of the lower connecting blocks 93. The lower connecting blocks 93 are provided with guide holes corresponding to the positions of the guide rods 26. The guide rods 26 are arranged through the guide holes. The lower connecting block 92 reciprocates along the straight direction of the guide rods to drive the pressure roller to press the carbon fiber prepreg 50.

[0037] In a preferred embodiment, one end of the screw rod 70 is externally connected to a servo motor, and the number of times the pressing roller presses the carbon fiber prepreg 50 is completed by setting the forward and reverse rotation of the servo motor, thereby achieving reliable pressing.

[0038] In a specific embodiment, two ends of the lower connecting block 93 are respectively fixedly connected to the upper surface of the pressure roller connecting seat 24 through L-shaped connecting blocks 94, which ensures that the assembly of the pressure roller 25 is stable and reliable.

[0039] In a specific embodiment, the temperature control heating plate 30 is preset in the bottom mounting frame 100, and the bottom mounting frame 100 is fixed to the bottom of the central area of ​​the fitting area 101 of the operating table 10 by fasteners around the periphery;

[0040] The bottom mounting frame 100 includes a surrounding frame 1 and a bottom plate 2. The temperature control heating plate 30 is placed in a space formed by the surrounding frame 1 and the bottom plate 2. The temperature control heating plate 30 is supported on the upper surface of the bottom plate 2.

[0041] The surrounding frame 1 and the bottom plate 2 are made of heat-insulating materials to ensure that the heat is conducted to the carbon fiber prepreg through the operating table. In specific implementation, one side of the surrounding frame 1 is also provided with a hole groove 3 to facilitate the passage of wires.

[0042] In a specific embodiment, the bottom outer covers of the two side supports 21 are provided with support covers 211 , and the upper covers of the connecting beams 22 are provided with upper covers 221 .

[0043] The operation process is as follows: select a sufficiently large operating table so that the surface area of ​​the alignment area and the bonding area covers the size of all models and sizes of carbon fiber prepreg layers in the factory; then place the bottom carbon fiber prepreg layer in the alignment area through the 0 point and the inner sides of the first and second beading strips; then align the carbon fiber prepreg layers layer by layer through the 0 point and the inner sides of the first and second beading strips; bond the contact surfaces of adjacent carbon fiber prepregs with epoxy resin; then transfer the integrated carbon fiber prepreg stack to the bonding area; turn on the temperature-controlled heating plate; manually or motor-driven pressure rollers reciprocate along the length direction of the connecting beam, thereby increasing the viscosity of the epoxy resin and improving the bonding tightness; it innovatively combines the pressure rollers and the temperature-controlled heating plate to improve the bonding effect; it has good economic performance, simple processing, high laying efficiency, and ensures product yield.

[0044] 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.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A carbon fiber prepreg laying device, characterized in that: It includes: The operating table includes an alignment area and a laminating area, and the four corners of the bottom of the operating table are respectively fixed with feet; A pressure roller assembly, comprising two side supports, a connecting crossbeam, a screw servo mechanism, a pressure roller connecting seat, and a pressure roller, wherein the two side supports are located on the upper surface of the two side positions of the bonding area of ​​the operating table, the two ends of the connecting crossbeam are respectively supported on the upper part of the side supports, the screw servo mechanism is placed on the connecting crossbeam, the lower output end of the screw servo mechanism is installed with the pressure roller connecting seat, the two ends of the roller shaft of the pressure roller are respectively convex and installed with corresponding connecting holes of the lower convex plates at both ends of the pressure roller connecting seat, and the lower roller surface of the pressure roller is used for pressing the laminated carbon fiber prepreg within the bonding area; and temperature-controlled heating plates; The temperature-controlled heating plate is fixedly arranged at the bottom of the central area of ​​the bonding area of ​​the operating table, and a pressing roller is arranged to reciprocate along the connecting beam on the upper surface of the central area, and the axial length of the pressing roller covers the corresponding length of the central area of ​​the bonding area; A pair of vertical pressure strips are arranged on a pair of outer vertical edges of the alignment area of ​​the operating table, and the pair of vertical pressure strips are arranged on the alignment area protruding from the operating table surface to form an alignment vertical coordinate system, which enables the stacked carbon fiber prepreg to be positioned and laid with the vertical coordinate system as the 0 point.

2. A carbon fiber prepreg laying device according to claim 1, characterized in that: An air cavity is arranged inside the pressing roller, and the weight of the pressing roller can be adjusted by pneumatic inflation or degassing.

3. The carbon fiber prepreg laying device according to claim 1, characterized in that: The pair of vertical pressure strips includes a first pressure strip and a second pressure strip, and a concave notch is arranged on one side of one pressure strip corresponding to the 0 o'clock position.

4. The carbon fiber prepreg laying device according to claim 1, characterized in that: The screw servo mechanism includes a screw, a screw nut, and a power output mechanism. The two ends of the screw are respectively positioned and supported by the supporting bearing mechanisms on both sides. The screw nut is threadedly mounted on the screw, and the screw nut is fixedly connected to the power output mechanism.

5. A carbon fiber prepreg laying device according to claim 4, characterized in that: The power output mechanism includes an upper connecting plate, two side connecting plates, and a lower connecting block. A pair of guide rods are also arranged between the two side supports. The guide rods are arranged parallel to the length direction of the connecting beam. The upper connecting plate is fixedly connected to the upper surface of the screw nut. The two sides of the upper connecting plate are respectively fixedly connected to the inner ends of the side connecting plates. After the side connecting plates on both sides are bent to avoid the connecting beam, the lower ends of the outer ends are fixedly connected to the upper surface of the corresponding position of the lower connecting block. The lower connecting block is provided with a guide hole corresponding to the position of the guide rod. The guide rod is arranged through the guide hole. The lower connecting block reciprocates along the straight direction of the guide rod to drive the pressure roller to press the carbon fiber prepreg.

6. A carbon fiber prepreg laying device according to claim 4, characterized in that: One end of the screw is externally connected to a servo motor, and the number of times the pressing roller presses the carbon fiber prepreg is completed by setting the forward and reverse rotation of the servo motor, thereby completing reliable pressing.

7. The carbon fiber prepreg laying device according to claim 5, characterized in that: The two ends of the lower connecting block are respectively fixedly connected to the upper surface of the pressure roller connecting seat through L-shaped connecting blocks.

8. The carbon fiber prepreg laying device according to claim 1, characterized in that: The temperature-controlled heating plate is preset in a bottom mounting frame, and the bottom mounting frame is fixed to the bottom of the central area of ​​the fitting area of ​​the operating table through surrounding fasteners.

9. A carbon fiber prepreg laying device according to claim 8, characterized in that: The bottom installation frame comprises a surrounding frame and a bottom plate. The temperature control heating plate is placed in a space formed by the surrounding frame and the bottom plate. The temperature control heating plate is supported on the upper surface of the bottom plate.

10. The carbon fiber prepreg laying device according to claim 8, characterized in that: The surrounding frames and the bottom plate are all made of heat-insulating materials.

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