Prepreg tape cutting device

Abstract

The utility model discloses a prepreg tape cutting device, and aims to solve the problem that the distance between a cutter and release paper needs to be well controlled while a prepreg tape is cut, so that the release paper is prevented from being damaged and cannot be wound. According to the technical scheme, the prepreg tape cutting device is characterized by comprising a cutting table and a cutting device body arranged on the cutting table, a notch allowing the cutting device body to penetrate through is formed in the position, corresponding to the cutting device body, of the cutting table, a prepreg tape fixing assembly is arranged on the cutting table, and the prepreg tape fixing assembly is arranged on the cutting table. And the two sets of prepreg tape fixing assemblies are symmetrically arranged at the two ends of the cutting device, each prepreg tape fixing assembly comprises a telescopic air cylinder arranged at the upper end of the cutting table and a pressing plate fixedly connected to the telescopic air cylinder, and a connecting rod is arranged between the two sets of telescopic air cylinders. According to the prepreg tape cutting device, the prepreg tape can be conveniently cut, wound and fixed, and therefore the cutting efficiency of the prepreg tape is improved.

Description

Technical Field

[0001] This utility model relates to the field of prepreg tape cutting technology, and more specifically, to a prepreg tape cutting device. Background Technology

[0002] Prepreg is a composition of resin matrix and reinforcement made by impregnating continuous fibers or fabrics with a resin matrix under strictly controlled conditions. It is an intermediate material for manufacturing composite materials.

[0003] During the unwinding process of the prepreg tape, the prepreg tape on the tray needs to be laid onto the adsorption platform. The prepreg tape on the tray is configured with a three-layer sandwich structure, with a release liner and release paper sandwiching the prepreg tape in the middle. The release liner is used to separate two adjacent layers of tape in the tray, and it is wound up as the tape exits the tray, causing the prepreg tape to adhere to a layer of release paper and guide it to the adsorption platform. The release paper needs to be separated from the prepreg tape before it is laid flat on the adsorption platform; therefore, a release paper winding device is provided in addition to the release liner winding device.

[0004] The prepreg tape laid flat on the adsorption platform needs to be cut to the required dimensions. The release paper separates from the prepreg tape as it is laid on the adsorption platform. Therefore, the distance between the cutter and the release paper needs to be carefully controlled during the cutting of the prepreg tape to avoid damaging the release paper and making it impossible to roll up. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a prepreg tape cutting device, which facilitates the cutting and winding of prepreg tape, thereby improving the cutting efficiency of prepreg tape.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a prepreg tape cutting device, including a cutting table and a cutting device disposed on the cutting table. The cutting table has a slot for the cutting device to pass through at the position corresponding to the cutting device. A prepreg tape fixing assembly is disposed on the cutting table. Two sets of the prepreg tape fixing assemblies are disposed symmetrically at both ends of the cutting device. The prepreg tape fixing assembly includes a telescopic cylinder disposed on the upper end of the cutting table and a pressing plate fixedly connected to the telescopic cylinder. A connecting rod is disposed between the two sets of telescopic cylinders.

[0007] By adopting the above technical solution, the prepreg tape is cut by the cutting device. Before cutting, the operator needs to use the telescopic cylinder to drive the pressing plate to fix both ends of the prepreg tape. Then, the cutting device cuts the prepreg tape, and the cutting blade of the cutting device passes through the slot to cut the prepreg tape in two. This achieves the cutting of the prepreg tape. By fixing the prepreg tape before cutting, it is possible to prevent the prepreg tape from shifting on the cutting table and changing the cutting position. This not only ensures the efficiency and quality of the prepreg tape cutting, but also ensures the quality of the prepreg tape after cutting and prevents the prepreg tape from sticking to the cutting table and being damaged.

[0008] The present invention is further provided with anti-slip pads on both sides of the groove.

[0009] By adopting the above technical solution, the anti-slip pad can prevent wear between the cutting device and the cutting table when the cutting device passes through the slot, thus preventing wear on the cutting device's blade and improving the service life of the cutting device.

[0010] The present invention is further configured such that a telescopic rod is fixedly connected between the pressing plate and the cutting table.

[0011] By adopting the above technical solution, the telescopic rod makes the movement of the pressing plate driven by the telescopic cylinder more stable and maintains a linear motion, thus ensuring that the position of the prepreg tape is fixed and will not shift.

[0012] The present invention is further configured such that: a fixing plate is fixedly connected to one end of the pressing plate near the telescopic cylinder, the pressing plate is fixedly connected to the fixing plate by a number of screws, and the fixing plate is fixedly connected to the extended end of the telescopic cylinder.

[0013] By adopting the above technical solution, if the pressing plate is damaged, several screws can be removed with tools to replace or repair the pressing plate. When the pressing plate is fixed to the telescopic cylinder again, tools can be used to align the pressing plate with the fixing plate to achieve the fixing of the pressing plate. This can increase the service life of the pressing plate and ensure the effect of fixing the prepreg tape.

[0014] The present invention is further configured such that both ends of the pressing plate are provided with arc surfaces.

[0015] By adopting the above technical solution, the arc surface setting can prevent damage to the surface of the prepreg tape when the pressing plate presses on the prepreg tape.

[0016] The present invention is further configured such that: a winding assembly and an unwinding assembly are respectively provided at both ends of the cutting table.

[0017] By adopting the above technical solution, the winding assembly and the unwinding assembly are used for winding and unwinding operations, respectively. The prepreg tape is unwound by the unwinding assembly, then cut by the cutting device, and finally wound up by the winding assembly, which facilitates the cutting and winding of the prepreg tape.

[0018] The present invention is further configured such that: the winding assembly includes a support frame mounted on the cutting table, a motor mounted on the support frame, a turntable fixedly connected to the output shaft of the motor, and a winding roller fixedly connected to the turntable; a fixing roller is engaged on the winding roller; a fixing block is protruding from the turntable; and a sensor is mounted on the support frame.

[0019] By adopting the above technical solution, after the prepreg tape is cut, the operator needs to start the motor of the winding assembly to drive the turntable to rotate. The turntable will then drive the winding roller to rotate. As the turntable rotates, the fixed block on the turntable will gradually approach the sensor and transmit this signal to the motor, causing the motor's output shaft to rotate in the opposite direction. This will drive the winding roller and the fixed roller to rotate to the initial position. The fixed roller is fixed to the winding roller by a snap-fit ​​method for storing and winding the prepreg tape. As the cutting device works continuously, the prepreg tape can be continuously wound up. After the fixed roller has wound up a large amount of prepreg tape, it can be removed from the winding roller by a snap-fit ​​method and the fixed roller can be replaced to store and wind up the prepreg tape. This can improve the efficiency of prepreg tape winding and cutting. The length of the prepreg tape cut each time is consistent, and the position of one revolution of the winding roller is the length of the prepreg tape cut.

[0020] In summary, this utility model has the following beneficial effects: under the action of the cutting device and the prepreg tape fixing component, the prepreg tape can be easily cut and wound up and fixed, thereby improving the cutting efficiency of the prepreg tape, ensuring the stability of the prepreg tape during cutting and the stability after separation from the cutting device, so as to prevent the prepreg tape from being damaged after cutting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the cutting table of this utility model, mainly used to show the structure and positional relationship of the cutting device, prepreg tape fixing assembly, winding assembly and unwinding assembly on the cutting table;

[0022] Figure 2 This is a schematic diagram of the winding assembly of this utility model, mainly used to show the structural and positional relationships between the winding roller, the fixed roller, the turntable, the fixed block and the support frame.

[0023] In the diagram: 1. Cutting table; 2. Cutting device; 3. Groove; 4. Anti-slip mat; 5. Pressing plate; 6. Telescopic cylinder; 7. Telescopic rod; 8. Fixing plate; 9. Take-up roller; 10. Support frame; 11. Motor; 12. Turntable; 13. Fixing roller; 14. Sensor; 15. Fixing block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings.

[0028] A prepreg tape cutting device, as described in the following figure Figures 1-2 The device includes a cutting table 1 and a cutting device 2 installed on the cutting table 1. The cutting table 1 has a slot 3 for the cutting device 2 to pass through at the position corresponding to the cutting device 2. The cutting table 1 is provided with a prepreg tape fixing assembly. There are two sets of prepreg tape fixing assemblies, which are symmetrically arranged at both ends of the cutting device 2. The prepreg tape fixing assembly includes a telescopic cylinder 6 installed at the upper end of the cutting table 1 and a pressing plate 5 fixedly connected to the telescopic cylinder 6. A connecting rod is provided between the two sets of telescopic cylinders 6.

[0029] Anti-slip pads 4 are provided on both sides of the groove 3. The anti-slip pads 4 can prevent the cutting device 2 from wearing down between the cutting table 1 and the cutting device 2 when it passes through the groove 3, thereby improving the service life of the cutting device 2.

[0030] A telescopic rod 7 is fixedly connected between the pressing plate 5 and the cutting table 1.

[0031] A fixing plate 8 is fixedly connected to one end of the pressing plate 5 near the telescopic cylinder 6. The pressing plate 5 is fixedly connected to the fixing plate 8 by several screws. The fixing plate 8 is fixedly connected to the extended end of the telescopic cylinder 6.

[0032] Both ends of the pressing plate 5 are provided with arc surfaces. The arc surfaces can prevent the pressing plate 5 from damaging the surface of the prepreg when pressing the prepreg.

[0033] The cutting table 1 has a winding assembly and an unwinding assembly at both ends. The winding assembly includes a support frame 10 on the cutting table 1, a motor 11 on the support frame 10, a turntable 12 fixedly connected to the output shaft of the motor 11, and a winding roller 9 fixedly connected to the turntable 12. A fixing roller 13 is engaged on the winding roller 9. A fixing block 15 is protruding on the turntable 12. A sensor 14 is provided on the support frame 10.

[0034] Working principle: The prepreg tape is cut by the cutting device 2. Before cutting, the operator needs to use the telescopic cylinder 6 to drive the pressing plate 5 to fix both ends of the prepreg tape. Then, the cutting device 2 cuts the prepreg tape, and the cutting blade of the cutting device 2 passes through the slot 3 to cut the prepreg tape in two. By fixing the prepreg tape before cutting, it is possible to prevent the prepreg tape from shifting on the cutting table 1 and changing the cutting position. This not only ensures the efficiency and quality of the prepreg tape cutting, but also ensures the quality of the prepreg tape after cutting and prevents the prepreg tape from sticking to the cutting table 1 and being damaged.

[0035] The telescopic rod 7 makes the movement of the telescopic cylinder 6 driving the pressing plate 5 more stable and maintains a linear motion, thus ensuring that the position of the prepreg tape is fixed and will not shift.

[0036] Furthermore, if the pressing plate 5 is damaged, several screws can be removed with tools to replace or repair the pressing plate 5. When the pressing plate 5 is fixed to the telescopic cylinder 6 again, the pressing plate 5 can be aligned with the fixing plate 8 with tools to fix the pressing plate 5, thereby increasing the service life of the pressing plate 5 and ensuring the effect of fixing the prepreg tape.

[0037] The winding assembly and the unwinding assembly are used for winding and unwinding operations, respectively. The prepreg tape is unwound by the unwinding assembly, then cut by the cutting device 2, and finally wound up by the winding assembly, which facilitates the cutting and winding of the prepreg tape.

[0038] After the prepreg tape is cut, the operator needs to start the motor 11 of the winding assembly to drive the turntable 12 to rotate. The turntable 12 will drive the winding roller 9 to rotate. As the turntable 12 rotates, the fixed block 15 on the turntable 12 will gradually approach the sensor 14 and transmit this signal to the motor 11, causing the output shaft of the motor 11 to rotate in the opposite direction. This will drive the winding roller 9 and the fixed roller 13 to rotate to the initial position. The fixed roller 13 is fixed to the winding roller 9 by snapping to store and wind up the prepreg tape. As the cutting device 2 works continuously, the prepreg tape can be continuously wound up. After the fixed roller 13 has wound up a large amount of prepreg tape, it can be removed from the winding roller 9 by snapping and the fixed roller 13 can be replaced to store and wind up the prepreg tape. This can improve the efficiency of prepreg tape winding and cutting. The length of the prepreg tape cut each time is consistent, and the position of the winding roller 9 after one revolution is the length of the prepreg tape cut.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pre-preg tape cutting apparatus comprising a cutting table (1) and a cutting device (2) provided on the cutting table (1), characterized in that: The cutting table (1) is provided with a slot (3) for the cutting device (2) to pass through, the cutting table (1) is provided with a prepreg fixing assembly, the prepreg fixing assembly is provided with two groups and is symmetrically arranged at both ends of the cutting device (2), the prepreg fixing assembly comprises a telescopic cylinder (6) arranged at the upper end of the cutting table (1) and a pressing plate (5) fixedly connected to the telescopic cylinder (6), and connecting rods are arranged between the two groups of telescopic cylinders (6).

2. A prepreg tape cutting device according to claim 1, wherein: The both sides of the slot (3) are provided with anti-skid pads (4).

3. A prepreg tape cutting device according to claim 1, wherein: The telescopic rod (7) is fixedly connected between the pressing plate (5) and the cutting table (1).

4. The apparatus of claim 1, wherein: The end of the pressing plate (5) close to the telescopic cylinder (6) is fixedly connected with a fixed plate (8), the pressing plate (5) is fixedly connected to the fixed plate (8) through a plurality of screws, and the fixed plate (8) is fixedly connected to the extending end of the telescopic cylinder (6).

5. A prepreg tape cutting device according to claim 1, wherein: The both ends of the pressing plate (5) are provided with arc surfaces.

6. A prepreg tape cutting device according to claim 1, wherein: The both ends of the cutting table (1) are respectively provided with a winding assembly and an unwinding assembly.

7. A prepreg tape cutting apparatus according to claim 6, wherein: The winding assembly comprises a support frame (10) arranged on the cutting table (1), a motor (11) arranged on the support frame (10), a rotating disc (12) fixedly connected to the output shaft of the motor (11) and a winding roller (9) fixedly connected to the rotating disc (12), the winding roller (9) is clamped with a fixed roller (13), the rotating disc (12) is provided with a fixed block (15) protruding therefrom, and the support frame (10) is provided with a sensor (14).

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