An automatic cloth cutting device for prepreg

Abstract

This utility model discloses an automatic fabric cutting device for prepreg, belonging to the technical field of fabric cutting devices. It includes a machine body, a feeding mechanism, a cutting mechanism, and a receiving roller. The feeding mechanism, cutting mechanism, and receiving roller are all mounted on the machine body, with the cutting mechanism positioned between the feeding mechanism and the receiving roller. Two pressing mechanisms are mounted on the machine body, each positioned on either side of the cutting mechanism. Each pressing mechanism includes a pressing roller, hydraulic rods, and a fixing frame. Two hydraulic rods are fixedly mounted on the machine body, each positioned on either side of the machine body. The fixing frame is fixedly connected to the hydraulic rods, and the pressing rollers are fixedly mounted on the fixing frame. A support plate is fixedly mounted on the machine body, with the pressing rollers pressing against the support plate. This utility model has the advantage of improving the stability of the prepreg after being cut by the cutting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of fabric cutting device technology, specifically an automatic fabric cutting device for prepreg fabric. Background Technology

[0002] Carbon fiber prepreg is made by bonding epoxy resin to carbon fibers using high-pressure, high-temperature technology. The composite material, also known as carbon fiber prepreg, is made from carbon fiber yarn, epoxy resin, release paper, and other materials through processes such as coating, hot pressing, cooling, lamination, and winding. During production, prepreg is often wound up using winding equipment, which is a device that can roll the prepreg into a coil.

[0003] Common winding equipment includes a machine body, a feeding structure, a cutting structure, and a winding structure. The cutting structure is located between the winding structure and the feeding structure. The prepreg fabric to be wound passes through the feeding structure, the cutting structure, and the winding structure in sequence. The prepreg fabric is wound up on the winding structure. After the winding structure has wound up a certain amount of prepreg fabric, the cutting structure is activated to cut the prepreg fabric. The winding structure completes the winding of one roll of prepreg fabric.

[0004] Regarding the above technical conditions, there is still a defect that the stability of the prepreg after being cut by the cutting structure is not good enough. During the winding process, the prepreg is taut. After the cutting structure cuts the prepreg, the prepreg will shrink in the direction of the feeding structure due to inertia, which affects the winding of the next roll of prepreg.

[0005] Based on this, the present invention designs an automatic fabric cutting device for prepreg fabric to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an automatic fabric cutting device for prepreg fabric to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic fabric cutting device for prepreg fabric, comprising a machine body, a feeding mechanism, a cutting mechanism, and a receiving roller. The feeding mechanism is disposed on the machine body, the cutting mechanism is disposed on the machine body, the receiving roller is disposed on the machine body, and the cutting mechanism is disposed between the feeding mechanism and the receiving roller. A pressing mechanism is disposed on the machine body, and two pressing mechanisms are disposed on the machine body, respectively disposed on both sides of the cutting mechanism. Each pressing mechanism includes a pressing roller, a hydraulic rod, and a fixing frame. The hydraulic rod is fixedly disposed on the machine body, and two hydraulic rods are disposed on the machine body, respectively disposed on both sides of the machine body. The fixing frame is fixedly connected to the hydraulic rod, and the pressing roller is fixedly disposed on the fixing frame. A support plate is fixedly disposed on the machine body, and the pressing roller abuts against the support plate.

[0008] Preferably, the feeding mechanism includes a feeding roller, a follower roller, and a driving device. The driving device is mounted on the machine body, the feeding roller is rotatably mounted on the machine body, the driving device is connected to the feeding roller, and the follower roller is rotatably mounted on the machine body, with the follower roller located above the feeding roller.

[0009] Preferably, the cutting mechanism includes a cylinder, a fixed plate, a linear motor, and a fabric cutting blade. The cylinder is fixedly mounted on the machine body, and two cylinders are fixedly mounted on both sides of the machine body. The telescopic shaft of the cylinder is fixedly connected to a connecting rod, and the fixed plate is fixedly connected to the connecting rod. The linear motor is fixedly mounted on the fixed plate, and the fabric cutting blade is fixedly connected to the moving block of the linear motor. The fabric cutting blade is located above the support plate.

[0010] Preferably, the receiving roller is fitted with a fixing tube, and two fixing tubes are provided on the receiving roller. The two fixing tubes are respectively located at both ends of the receiving roller. The fixing tubes are fixedly connected to a limit ring, and the limit ring is located between the two fixing tubes.

[0011] Preferably, a feeding roller is rotatably mounted on the machine body, the feeding roller is below the receiving roller, and the feeding roller is tangent to the limiting ring.

[0012] In summary, this application has the following beneficial technical effects: Before the cutting mechanism cuts the prepreg, the hydraulic rod is activated, the hydraulic rod retracts, the fixed frame moves downward with the pressure roller, the pressure roller presses the prepreg, and the prepreg is pressed between the pressure roller and the support plate. The cutting mechanism is then activated to cut the prepreg. At this time, the feeding mechanism is activated first. After the feeding mechanism has conveyed a certain distance of prepreg towards the cutting mechanism, the hydraulic rod is activated again, the hydraulic rod extends, and the fixed frame moves away from the support plate with the pressure roller. The pressure roller releases the pressure on the prepreg. At this time, the prepreg is less likely to retract towards the receiving mechanism due to inertia after being cut by the cutting mechanism, thus improving the stability of the prepreg after being cut by the cutting mechanism. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the fabric cutting device in this embodiment;

[0015] Figure 2 This is a schematic diagram of the fabric cutting device in this embodiment;

[0016] Figure 3 This is a top view of the fabric cutting device in this embodiment;

[0017] Figure 4 This is a front structural diagram of the fabric cutting device in this embodiment.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Follower roller; 2. Linear motor; 3. Fabric cutter; 4. Fixing frame; 5. Hydraulic rod; 6. Connecting rod; 7. Pressing roller; 8. Cylinder; 9. Machine body; 10. Fixing tube; 11. Limiting ring; 12. Feeding roller; 13. Receiving roller; 14. Pressing mechanism; 15. Cutting mechanism; 16. Support plate; 17. Feeding mechanism; 18. Fixing plate; 19. Feeding roller; 20. First motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0022] An automatic fabric cutting device for prepreg includes a machine body 9, a feeding mechanism 17, a cutting mechanism 15, and a take-up roller 13. The feeding mechanism 17 is mounted on the machine body 9, the cutting mechanism 15 is mounted on the machine body 9, and the take-up roller 13 is mounted on the machine body 9 when rotating. The cutting mechanism 15 is located between the feeding mechanism 17 and the take-up roller 13. A first motor 20 is fixedly mounted on the machine body 9 and is connected to the take-up roller 13.

[0023] The feeding mechanism 17 conveys the prepreg fabric to be rolled up towards the cutting mechanism 15 and the take-up roller 13. The motor is started, the take-up roller 13 rotates, and the prepreg fabric is rolled up by the take-up roller 13. When the prepreg fabric on the take-up roller 13 is rolled up to a suitable amount, the cutting mechanism 15 is started, the cutting mechanism 15 cuts the prepreg fabric, and the take-up roller 13 rolls up a roll of prepreg fabric.

[0024] The machine body 9 is provided with a pressing mechanism 14. There are two pressing mechanisms 14 on the machine body 9, which are respectively located on both sides of the cutting mechanism 15. The pressing mechanism 14 includes a pressing roller 7, a hydraulic rod 5, and a fixing frame 4. The hydraulic rod 5 is fixedly installed on the machine body 9. There are two hydraulic rods 5 on the machine body 9, which are respectively located on both sides of the machine body 9. The fixing frame 4 is fixedly installed on the hydraulic rod 5. The pressing roller 7 is fixedly installed on the fixing frame 4. A support plate 16 is fixedly installed on the machine body 9. The support plate 16 is located between the two hydraulic rods 5. The pressing roller 7 abuts against the support plate 16.

[0025] Before cutting the prepreg, first activate the pressing mechanism 14 to press the prepreg between the pressing mechanism 14 and the support plate 16. Then, activate the hydraulic rod 5, causing the fixing frame 4 to move downwards with the pressing roller 7. The pressing roller 7 presses against the prepreg, pressing it firmly between the pressing roller 7 and the support plate 16. At this point, after the cutting mechanism 15 cuts the prepreg, the prepreg will not shrink back to either side of the cutting mechanism 15.

[0026] When continuing to wind up the next roll of prepreg, the feeding mechanism 17 is started first, followed by the pressing mechanism 14. The feeding mechanism 17 first conveys a certain distance of prepreg before the pressing mechanism 14 contacts and presses the prepreg. At this time, the prepreg will not shrink towards the feeding mechanism 17 due to inertia.

[0027] The feeding mechanism 17 includes a feeding roller 19, a follower roller 1, and a driving device. The feeding roller 19 is rotatably mounted on the machine body 9, and the follower roller 1 is mounted on the machine body 9 above the feeding roller 19. The driving device is mounted on the machine body 9 and connected to the feeding roller 19. When the driving device is started, the feeding roller 19 rotates. The follower roller 1 rotates in the opposite direction to the feeding roller 19. The follower roller 1 rotates as the feeding roller 19 rotates. The prepreg fabric is between the feeding roller 19 and the follower roller 1. When the follower roller 1 and the feeding roller 19 rotate, the prepreg fabric is conveyed towards the direction of the cutting mechanism 15.

[0028] A fixing tube 10 is sleeved on the take-up roller 13. Two fixing tubes 10 are provided on the take-up roller 13, and the two fixing tubes 10 are respectively located at both ends of the take-up roller 13. A limiting ring 11 is fixedly connected to the fixing tube 10. The limiting ring 11 is located between the two fixing tubes 10. The fixing tubes 10 and the limiting ring 11 play a limiting role in the prepreg fabric on the take-up roller 13, so that the prepreg fabric wound on the take-up roller 13 is more regular.

[0029] When the machine body 9 rotates, there is not only the feeding roller 12, but also the feeding roller 12 below the take-up roller 13. The feeding roller 12 is tangent to the limiting ring 11. When the take-up roller 13 is about to finish winding a roll of prepreg, the feeding roller 12 comes into contact with the prepreg. The section of prepreg cut by the cutting mechanism 15 is neatly wound onto the take-up roller 13 by the action of the feeding roller 12.

[0030] The cutting machine includes a cylinder 8, a fixed plate 18, a linear motor 2, and a cutting blade 3. The cylinder 8 is fixedly mounted on the machine body 9. There are two cylinders 8 on the machine body 9, which are respectively located on both sides of the machine body 9. The telescopic shaft of the cylinder 8 is fixedly connected to a connecting rod 6. The fixed plate 18 is fixedly connected to the connecting rod 6. The linear motor 2 is fixedly mounted on the fixed plate 18. The cutting blade 3 is fixedly mounted on the moving block of the linear motor 2 and is located above the support plate 16.

[0031] When the prepreg needs to be cut, cylinder 8 is activated, the telescopic shaft of cylinder 8 retracts, and the fixed plate 18, linear motor 2 and cutting blade 3 move down toward the support plate 16. The cutting blade 3 presses against the support plate 16, and the prepreg is between the support plate 16 and the cutting blade 3. The linear motor 2 is activated, and the moving block moves the cutting blade 3 on the support plate 16, and the prepreg on the support plate 16 is cut by the cutting blade 3.

[0032] The implementation principle of this embodiment is as follows: Before the cutting mechanism 15 cuts the prepreg, the hydraulic rod 5 is activated, the hydraulic rod 5 retracts, the fixed frame 4 moves downward with the pressure roller 7, the pressure roller 7 presses against the prepreg, and the prepreg is pressed between the pressure roller 7 and the support plate 16. The cutting mechanism 15 is then activated to cut the prepreg. At this time, the feeding mechanism 17 is activated first. After the feeding mechanism 17 has conveyed the prepreg a certain distance in the direction of the cutting mechanism 15, the hydraulic rod 5 is activated again, the hydraulic rod 5 extends, and the fixed frame 4 moves the pressure roller 7 away from the support plate 16. The pressure roller 7 releases the pressure on the prepreg. At this time, the prepreg is less likely to retract towards the receiving mechanism due to inertia after being cut by the cutting mechanism 15, thus improving the stability of the prepreg after being cut by the cutting mechanism 15.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic fabric cutting device for prepreg fabric, comprising a machine body (9), a feeding mechanism (17), a cutting mechanism (15), and a take-up roller (13), characterized in that: The feeding mechanism (17) is mounted on the machine body (9), the cutting mechanism (15) is mounted on the machine body (9), the receiving roller (13) is mounted on the machine body (9), the cutting mechanism (15) is positioned between the feeding mechanism (17) and the receiving roller (13), and the machine body (9) is provided with a pressing mechanism (14). Two pressing mechanisms (14) are mounted on the machine body (9), and the two pressing mechanisms (14) are respectively positioned on both sides of the cutting mechanism (15). 4) Includes a pressure roller (7), a hydraulic rod (5) and a fixing frame (4). The hydraulic rod (5) is fixedly mounted on the machine body (9). There are two hydraulic rods (5) on the machine body (9). The two hydraulic rods (5) are respectively mounted on both sides of the machine body (9). The fixing frame (4) is fixedly connected to the hydraulic rod (5). The pressure roller (7) is fixedly mounted on the fixing frame (4). A support plate (16) is fixedly mounted on the machine body (9). The pressure roller (7) abuts against the support plate (16).

2. The automatic fabric cutting device for prepreg fabric according to claim 1, characterized in that: The feeding mechanism (17) includes a feeding roller (19), a follower roller (1) and a driving device. The driving device is mounted on the machine body (9). The feeding roller (19) is rotatably mounted on the machine body (9). The driving device is connected to the feeding roller (19). The follower roller (1) is rotatably mounted on the machine body (9) and is located above the feeding roller (19).

3. An automatic fabric cutting device for prepreg fabric according to claim 1, characterized in that: The cutting mechanism (15) includes a cylinder (8), a fixed plate (18), a linear motor (2), and a fabric cutting knife (3). The cylinder (8) is fixedly mounted on the machine body (9). There are two cylinders (8), which are respectively mounted on both sides of the machine body (9). The telescopic shaft of the cylinder (8) is fixedly connected to a connecting rod (6). The fixed plate (18) is fixedly connected to the connecting rod (6). The linear motor (2) is fixedly mounted on the fixed plate (18). The fabric cutting knife (3) is fixedly connected to the moving block of the linear motor (2). The fabric cutting knife (3) is above the support plate (16).

4. An automatic fabric cutting device for prepreg fabric according to claim 1, characterized in that: The receiving roller (13) is fitted with a fixing tube (10). There are two fixing tubes (10) on the receiving roller (13). The two fixing tubes (10) are respectively located at both ends of the receiving roller (13). The fixing tubes (10) are fixedly connected to a limiting ring (11), which is located between the two fixing tubes (10).

5. An automatic fabric cutting device for prepreg fabric according to claim 4, characterized in that: A feeding roller (12) is rotatably mounted on the machine body (9). The feeding roller (12) is located below the receiving roller (13), and the feeding roller (12) is tangent to the limiting ring (11).

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