Carbon fiber prepreg thickness detection device

Abstract

The invention is suitable for the technical field of thickness detection, and provides a carbon fiber prepreg thickness detection device which comprises a conveying frame and lower guide rollers installed at the two ends of the conveying frame, a leveling plate is installed in the conveying frame, a plurality of pressing structures are installed at the top of the conveying frame, and a thickness amplification measurement structure is installed on the conveying frame. A recording structure matched with the thickness amplification measuring structure is fixed to one side of the conveying frame. When it is detected that the thickness of the carbon fiber prepreg changes, the actual variable quantity can be amplified, and the amplified thickness variable quantity is visually described on a recording structure. The device can be directly installed in a production line for use, detection can be carried out while production is carried out, the situation that the thickness of the carbon fiber prepreg passing through the detection device is large is reflected in real time, and the detection efficiency is improved while production is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of thickness detection, and more particularly to a device for detecting the thickness of carbon fiber prepreg. Background Art

[0002] Carbon fiber prepreg, also known as carbon fiber prepreg, is a composite material made from reinforcing materials (carbon fiber yarn, epoxy resin, release paper, etc.) through a process including coating, hot pressing, cooling, laminating, and winding. Carbon fiber prepreg primarily consists of carbon fiber yarn as a reinforcing material and epoxy resin as a matrix material. The thickness of carbon fiber prepreg is a key indicator of its quality and application effectiveness. To meet product design and performance requirements while ensuring consistent and stable thickness throughout the production process, carbon fiber prepreg thickness testing is essential.

[0003] Existing testing methods use precision instruments such as thickness gauges or microscopes to perform multi-point measurements on carbon fiber prepregs to obtain an accurate average thickness. This requires sampling during the test, and multi-point sampling must be performed after the machine is shut down or after production is completed. This not only reduces test efficiency but also has poor timeliness, failing to promptly reflect changes in carbon fiber prepreg thickness during the production process. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a device that can intuitively display the test results and detect the thickness of carbon fiber prepreg in real time.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a carbon fiber prepreg thickness detection device, comprising a conveyor frame and lower guide rollers installed at both ends of the conveyor frame, a leveling plate installed in the conveyor frame, a plurality of clamping structures installed on the top of the conveyor frame, a thickness amplification and measurement structure installed on the conveyor frame, and a recording structure that cooperates with the thickness amplification and measurement structure is fixed on one side of the conveyor frame.

[0006] The thickness magnification measurement structure includes a lower sleeve, an upper sleeve and a moving rod. The lower sleeve is penetrated by a first guide rod and a reciprocating screw on both sides. The reciprocating screw is transmission-connected to the lower sleeve. The upper sleeve is penetrated by a second guide rod fixedly connected to the conveying rack on one side.

[0007] The lower sleeve is provided with a push rod, the bottom end of the push rod is rotatably mounted with a roller, the top of the push rod is hinged with a slider, the slider is slidably connected to a push rod, one end of the push rod is slidably connected to a third guide rod fixedly connected to the conveying rack, the other end of the push rod is hinged with a connecting plate, the end of the connecting plate away from the push rod is hinged with a piston column that passes through the upper sleeve and is slidably connected to the upper sleeve; the moving rod is slidably connected to the conveying rack, the top end of the piston column contacts the moving rod, and one end of the moving rod is provided with a marking pen that cooperates with the recording structure through a fixed sleeve.

[0008] As a preferred technical solution of the present invention, the recording structure includes a support frame fixedly installed on one side of the conveying frame, and reels are rotatably installed at both ends of the support frame. The two reels are connected by a grid marking paper transmission.

[0009] As a preferred technical solution of the present invention, a flattening conductive roller cooperating with the grid marking paper is installed on a surface of the support frame facing the marking pen, and a driven bevel gear is installed at the bottom end of one of the reels.

[0010] As a preferred technical solution of the present invention, a first motor is installed on the conveying frame, and the output shaft end of the first motor is fixedly connected to one end of one of the lower guide rollers through a transmission chain. The other end of the lower guide roller passes through the conveying frame and is fixedly installed with a driving bevel gear that meshes with the driven bevel gear.

[0011] As a preferred technical solution of the present invention, a plurality of inverted L-shaped support plates that cooperate with the clamping structure and a mounting frame for installing the thickness amplification measurement structure are fixed on the conveying frame, and guide grooves are provided on the long sides of the inverted L-shaped support plates, and mounting holes that cooperate with the clamping structure are provided on the short sides of the inverted L-shaped support plates.

[0012] As a preferred technical solution of the present invention, the clamping structure includes a clamping roller with both ends passing through the guide groove, and both ends of the clamping roller are rotatably connected to a shaft sleeve, an adjusting rod that cooperates with the mounting hole is fixed on the shaft sleeve, and an adjusting nut is threadedly connected to the top of the adjusting rod, and a spring is sleeved on the adjusting rod, with both ends respectively pressing against the shaft sleeve and the short side of the inverted L-shaped support plate.

[0013] As a preferred technical solution of the present invention, the mounting frame includes a mounting plate and a main frame fixed on the top of the mounting plate, an extension frame is fixed on the top of the main frame, and a guide frame that cooperates with the moving rod is fixed on the top of the extension frame.

[0014] As a preferred technical solution of the present invention, a second motor is installed on the mounting plate, the output shaft end of the second motor is fixedly connected to the reciprocating screw, the mounting plate is provided with a first fixing hole that cooperates with the first guide rod, and the main frame is provided with a second fixing hole and a third fixing hole that cooperate with the second guide rod and the third guide rod respectively.

[0015] As a preferred technical solution of the present invention, several adjustment plates that pass through the conveying frame are fixed on the side of the leveling plate, and the adjustment screws are threadedly connected to the adjustment plates. The conveying frame is provided with adjustment grooves that cooperate with the adjustment plates, and the conveying frame is fixed with a support plate that is threaded through by the adjustment screws and threadedly connected to the adjustment screws.

[0016] The advantages of the present invention are: The present invention, through the coordination of a roller, a push rod, and a push rod, can amplify the actual thickness change of the carbon fiber prepreg when it is detected. The coordination of a connecting plate, a piston column, a movable rod, and a marking pen allows the amplified thickness change to be intuitively depicted on a recording structure. Furthermore, the device can be directly installed and used in a production line, enabling simultaneous testing and real-time reflection of the thickness of the carbon fiber prepreg passing through the detection device, thereby improving detection efficiency without affecting production.

[0017] The reciprocating screw driven by the second motor of the present invention drives the detection device to move back and forth, and cooperates with the transmission of the carbon fiber prepreg to detect the linear detection continuously. Compared with the traditional random fixed-point sampling detection, it can not only collect more data and ensure the accuracy of the detection data, but also can directly reflect the detection data on the grid marking paper, making the detection results more intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a structural schematic diagram of a carbon fiber prepreg thickness detection device of the present invention.

[0019] Figure 2 This is a structural schematic diagram of the present invention from another perspective.

[0020] Figure 3 It is a left view of the present invention.

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0022] Figure 5 Schematic diagram of the thickness magnification measurement structure.

[0023] Figure 6 This is a schematic diagram of the thickness magnification measurement structure from another perspective.

[0024] Figure 7Schematic diagram of the structure of the conveyor rack.

[0025] Figure 8 It is a structural diagram of the compression structure.

[0026] Figure 9 A structural diagram of the record structure.

[0027] Figure 10 To find the structural diagram of the flat plate.

[0028] Figure 11 This is the roller walking trajectory diagram.

[0029] In the accompanying drawings: 1, conveyor frame; 101, inverted L-shaped support plate; 102, mounting plate; 103, main frame; 104, extension frame; 105, guide frame; 106, support plate; 2. Lower guide roller; 3. Find the plate; 4. Compression structure; 401. Compression roller; 402. Bushing; 403. Adjustment rod; 404. Adjustment nut; 405. Spring; 5. Thickness magnification measurement structure; 501. Lower casing; 502. Upper casing; 503. Moving rod; 504. First guide rod; 505. Reciprocating screw; 506. Second guide rod; 507. Ejector rod; 508. Roller; 509. Slider; 510. Push rod; 511. Third guide rod; 512. Connecting plate; 513. Piston column; 514. Fixed sleeve; 515. Marking pen; 6. Recording structure; 601. Support frame; 602. Scroll; 603. Grid marking paper; 604. Flattening conduction roller; 605. Driven bevel gear; 7. First motor; 8. Driving bevel gear; 9. Second motor. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not to exact scale, and are only used for the purpose of conveniently and clearly illustrating the embodiments of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1:

[0033] See also Figure 1-11 Structural schematic diagram, the present invention provides the following technical solutions: Specifically, it refers to a carbon fiber prepreg thickness detection device, including a conveyor frame 1 and lower guide rollers 2 installed at both ends of the conveyor frame 1, a leveling plate 3 is installed in the conveyor frame 1, a mounting frame for installing a thickness magnification measurement structure 5 is fixed on the conveyor frame 1, a thickness magnification measurement structure 5 is installed on the conveyor frame 1, and a recording structure 6 that cooperates with the thickness magnification measurement structure 5 is fixed on one side of the conveyor frame 1.

[0034] Multiple groups of thickness magnification measurement structures 5 can be set on the conveyor frame 1. By controlling the speed of the second motor 9 driving different groups of thickness magnification measurement structures 5, the roller 508 can be placed at different positions to measure different positions of the passing carbon fiber prepreg.

[0035] The thickness magnification measurement structure 5 includes a lower sleeve 501, an upper sleeve 502 and a movable rod 503. The lower sleeve 501 is penetrated by a first guide rod 504 and a reciprocating screw 505 on both sides. The reciprocating screw 505 is transmission-connected to the lower sleeve 501. The upper sleeve 502 is penetrated by a second guide rod 506 fixedly connected to the conveying rack 1 on one side.

[0036] A top rod 507 is passed through the lower casing 501, and a roller 508 is rotatably mounted on the bottom end of the top rod 507. Figure 11The figure shows two possible travel paths for the roller 508. The travel path of the roller 508 is controlled by controlling the speed of the reciprocating screw 505 by controlling the second motor 9. A slider 509 is hinged to the top of the push rod 507. A push rod 510 is slidably connected to the slider 509. One end of the push rod 510 is slidably connected to a third guide rod 511 fixedly connected to the conveyor frame 1. The other end of the push rod 510 is hinged to a connecting plate 512. The end of the connecting plate 512 away from the push rod 510 is hinged to a piston rod 513 that passes through and is slidably connected to the upper sleeve 502. The combination of the first guide rod 504, the second guide rod 506, and the third guide rod 511 enables the measuring portion of the detection device to move back and forth under the drive of the reciprocating screw 505, thereby increasing the detection range of the detection device.

[0037] The push rod 510 is pushed to swing by the cooperation of the roller 508, the push rod 507 and the slider 509. There is a certain angle between the push rod 507 and the push rod 510, and the connection position between the push rod 510 and the push rod 507 is close to the hinge end of the push rod 510. Since the push rod 510 is set to a long length, when the push rod 510 is lifted by the push rod 507 to swing, the connection end of the push rod 510 and the connecting plate 512 can give a larger displacement, which is convenient for intuitive display of the actual change in the position where the thickness change occurs.

[0038] The movable rod 503 is slidably connected to the conveyor frame 1, and the top end of the piston column 513 contacts the movable rod 503. A marking pen 515 that cooperates with the recording structure 6 is mounted on one end of the movable rod 503 through a fixing sleeve 514. If there are multiple sets of thickness magnification measurement structures 5, the marking pens 515 can be equipped with different colors to facilitate distinguishing thickness changes at different locations.

[0039] When the carbon fiber prepreg passes through the conveying rack 1, the roller 508 contacts it on its upper surface. As the carbon fiber prepreg moves, when the thickness of the carbon fiber prepreg passing through the roller 508 changes, the roller 508 moves upward. The carbon fiber prepreg has the characteristics of high strength and is not easily deformed when squeezed. It can lift the roller 508, thereby driving the push rod 507 to move upward. The moving distance of the push rod 507 is amplified by the cooperation of the slider 509 and the push rod 510, and then the piston column 513 is pushed up through the connecting plate 512. Since the top of the piston column 513 contacts the moving rod 503, the rise of the piston column 513 can drive the moving rod 503 to rise, so that the marking pen 515 installed at one end of the moving rod 503 draws the trajectory of the thickness change of the carbon fiber prepreg, which can intuitively display its thickness change during the production process.

[0040] The recording structure 6 includes a support frame 601 fixedly installed on one side of the conveying frame 1, and reels 602 are rotatably installed at both ends of the support frame 601. The two reels 602 are connected by a grid marking paper 603; the grid marking paper 603 is made of polyester film material, which is convenient for cleaning the marking track after use and can be recycled. A flattening conduction roller 604 that cooperates with the grid marking paper 603 is installed on one surface of the support frame 601 facing the marking pen 515, and a driven bevel gear 605 is installed at the bottom end of one of the reels 602.

[0041] A first motor 7 is mounted on the conveyor frame 1. The output shaft of the first motor 7 is fixedly connected to one end of a lower guide roller 2 via a drive chain. The other end of the lower guide roller 2 extends through the conveyor frame 1 and is fixedly mounted with a driving bevel gear 8 that meshes with a driven bevel gear 605. The meshing of the driving bevel gear 8 and the driven bevel gear 605 drives the reel 602, on which the grid marker paper 603 is wound, to rotate. As the carbon fiber prepreg moves, the grid marker paper 603 is replaced with a new one, and the measured thickness is continuously displayed on the grid marker paper 603.

[0042] The mounting frame includes a mounting plate 102 and a main frame 103 fixed to the top of the mounting plate 102. An extension frame 104 is fixed to the top of the main frame 103. A guide frame 105 that cooperates with the moving rod 503 is fixed to the top of the extension frame 104. The second motor 9 is mounted on the mounting plate 102, and the output shaft end of the second motor 9 is fixedly connected to the reciprocating screw 505. The mounting plate 102 is provided with a first fixing hole that cooperates with the first guide rod 504. The main frame 103 is provided with a second fixing hole and a third fixing hole that cooperate with the second guide rod 506 and the third guide rod 511, respectively. Example 2:

[0043] Based on the first specific embodiment, the difference of this embodiment is that: like Figure 1 、 4 As shown in Figures 7 and 8, a plurality of clamping structures 4 are installed on the top of the conveying frame 1, and a plurality of inverted L-shaped support plates 101 that cooperate with the clamping structure 4 are fixed on the conveying frame 1. Guide grooves are provided on the long sides of the inverted L-shaped support plates 101, and mounting holes that cooperate with the clamping structure 4 are provided on the short sides of the inverted L-shaped support plates 101.

[0044] The clamping structure 4 includes a clamping roller 401 with both ends extending through guide grooves. Both ends of the clamping roller 401 are rotatably connected to a sleeve 402. An adjustment rod 403, which engages with a mounting hole, is fixed to the sleeve 402. An adjustment nut 404 is threadedly connected to the top of the adjustment rod 403. A spring 405 is sleeved on the adjustment rod 403, with both ends respectively pressing against the sleeve 402 and the short side of the inverted L-shaped support plate 101. Under the action of the spring 405, the clamping roller 401 presses against the carbon fiber prepreg passing through the conveyor rack 1, keeping the carbon fiber prepreg flat during conveyance and improving the accuracy of thickness detection. Example 3:

[0045] Based on the second specific embodiment, the difference of this embodiment is that: like Figure 4 、 10 As shown, the side of the leveling plate 3 is fixed with several adjustment plates that pass through the conveyor frame 1. The adjustment screws are threaded onto the adjustment plates. The conveyor frame 1 is provided with adjustment slots that cooperate with the adjustment plates. The conveyor frame 1 is fixed with a support plate 106 that is penetrated by the adjustment screws and threadedly connected to the adjustment screws. When in use, the height of the leveling plate 3 within the conveyor frame 1 can be adjusted so that it can be used in conjunction with the lower guide roller 2 to ensure that the carbon fiber prepreg passing through is spread horizontally. The leveling plate 3 supports the carbon fiber prepreg passing through the conveyor frame 1 from the bottom and keeps the carbon fiber prepreg on the leveling plate 3 flat.

[0046] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all within the scope of protection of the present invention.

Claims

1. A carbon fiber prepreg thickness detection device, comprising a conveyor frame (1) and lower guide rollers (2) installed at both ends of the conveyor frame (1), a leveling plate (3) installed in the conveyor frame (1), and a plurality of pressing structures (4) installed on the top of the conveyor frame (1), characterized in that: A thickness magnification measurement structure (5) is installed on the conveying frame (1), and a recording structure (6) that cooperates with the thickness magnification measurement structure (5) is fixed on one side of the conveying frame (1); The thickness magnification measurement structure (5) comprises a lower sleeve (501), an upper sleeve (502) and a moving rod (503); a first guide rod (504) and a reciprocating screw (505) are passed through both sides of the lower sleeve (501); the reciprocating screw (505) is transmission-connected to the lower sleeve (501); a second guide rod (506) fixedly connected to the conveying frame (1) is passed through one side of the upper sleeve (502); The lower sleeve (501) is penetrated by a push rod (507), the bottom end of the push rod (507) is rotatably mounted with a roller (508), the top of the push rod (507) is hinged with a slider (509), the slider (509) is slidably connected to a push rod (510), one end of the push rod (510) is slidably connected to a third guide rod (511) fixedly connected to the conveying rack (1), the other end of the push rod (510) is hinged to a connecting plate (512), the end of the connecting plate (512) away from the push rod (510) is hinged to a piston column (513) that penetrates the upper sleeve (502) and is slidably connected to the upper sleeve (502); The moving rod (503) is slidably connected to the conveying frame (1), the top end of the piston column (513) contacts the moving rod (503), and one end of the moving rod (503) is installed with a marking pen (515) that cooperates with the recording structure (6) through a fixing sleeve (514).

2. A carbon fiber prepreg thickness detection device according to claim 1, characterized in that: The recording structure (6) comprises a support frame (601) fixedly mounted on one side of the conveying frame (1), with scrolls (602) rotatably mounted on both ends of the support frame (601), and the two scrolls (602) are connected by a grid marking paper (603).

3. A carbon fiber prepreg thickness detection device according to claim 2, characterized in that: A flattening conductive roller (604) that cooperates with the grid marking paper (603) is installed on a surface of the support frame (601) facing the marking pen (515), and a driven bevel gear (605) is installed at the bottom end of one of the reels (602).

4. The carbon fiber prepreg thickness detection device according to claim 1, characterized in that: A first motor (7) is mounted on the conveyor frame (1), and an output shaft end of the first motor (7) is fixedly connected to one end of a lower guide roller (2) via a transmission chain. The other end of the lower guide roller (2) passes through the conveyor frame (1) and is fixedly mounted with a driving bevel gear (8) meshing with a driven bevel gear (605).

5. The carbon fiber prepreg thickness detection device according to claim 1, characterized in that: A plurality of inverted L-shaped support plates (101) cooperating with the pressing structure (4) and a mounting frame for mounting the thickness magnification measurement structure (5) are fixed on the conveying frame (1), wherein the long sides of the inverted L-shaped support plates (101) are provided with guide grooves, and the short sides of the inverted L-shaped support plates (101) are provided with mounting holes cooperating with the pressing structure (4).

6. The carbon fiber prepreg thickness detection device according to claim 5, characterized in that: The clamping structure (4) comprises a clamping roller (401) with both ends passing through the guide groove, and both ends of the clamping roller (401) are rotatably connected to a shaft sleeve (402), an adjustment rod (403) that matches the mounting hole is fixed on the shaft sleeve (402), and an adjustment nut (404) is threadedly connected to the top of the adjustment rod (403), and a spring (405) is sleeved on the adjustment rod (403), with both ends respectively pressing against the shaft sleeve (402) and the short side of the inverted L-shaped support plate (101).

7. The carbon fiber prepreg thickness detection device according to claim 5, characterized in that: The mounting frame comprises a mounting plate (102) and a main frame (103) fixed on the top of the mounting plate (102); an extension frame (104) is fixed on the top of the main frame (103); and a guide frame (105) that cooperates with the moving rod (503) is fixed on the top of the extension frame (104).

8. The carbon fiber prepreg thickness detection device according to claim 1, characterized in that: A second motor (9) is mounted on the mounting plate (102), an output shaft end of the second motor (9) is fixedly connected to the reciprocating screw (505), a first fixing hole is provided on the mounting plate (102) for cooperating with the first guide rod (504), and a second fixing hole and a third fixing hole are provided on the main frame (103) for cooperating with the second guide rod (506) and the third guide rod (511), respectively.

9. The carbon fiber prepreg thickness detection device according to claim 1, characterized in that: A plurality of adjustment plates penetrating the conveying frame (1) are fixed on the side of the leveling plate (3), and an adjustment screw is threadedly connected to the adjustment plate. An adjustment slot cooperating with the adjustment plate is provided on the conveying frame (1), and a support plate (106) is fixed on the conveying frame (1) and is penetrated by the adjustment screw and is threadedly connected to the adjustment screw.

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