Detachable knife roll for chopping prepreg tape

Abstract

The utility model relates to prepreg tape cutting equipment, in particular to a detachable knife roll for chopping prepreg tapes, which comprises a support component, a cutter component is fixed at the top of the support component and comprises a support frame, the support frame is fixed at the top of the support component, a sliding groove is arranged on one side of the support frame, a blocking block is slidably connected in the support frame, and the blocking block is arranged in the sliding groove. A fixing screw is in threaded connection with the interior of the blocking block and slidably connected into the supporting frame, a blade is slidably connected to one side of the sliding groove, a butt joint hole is formed in one side of the blade, a belt pressing assembly is fixed to one side of the blade, and the supporting assembly comprises a supporting table. The blade and the power assembly are not fixed together, so that the blade can be replaced at any time after the blocking block is taken down, the blade is convenient to replace, the prepreg tape can be pressed by the anti-sticking plate through the elasticity of the spring, the prepreg tape cannot be driven to move when the blade moves upwards, and the cutting efficiency of the prepreg tape is improved. Therefore, the length of the cut prepreg tape is ensured.

Description

Technical Field

[0001] The utility model relates to a prepreg tape cutting device, in particular to a detachable knife roller for short-cutting the prepreg tape, belonging to the technical field of prepreg tape production equipment. Background Art

[0002] Chopped carbon fiber reinforced resin composites are widely used in aerospace, defense and military fields due to their high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, electrical conductivity and heat transfer performance. By chopping carbon fiber prepreg tapes into prepregs of a certain length and using processes such as compression molding, high-performance composite materials with isotropic properties can be prepared.

[0003] Chinese patent number CN214490721U provides a detachable knife roller for short-cutting of bundled carbon fiber prepreg tapes, including a bottom plate, a short-cut plate fixedly connected to the top of the bottom plate, a driving motor fixedly connected to the outer wall of the short-cut plate, an output shaft fixedly connected to the output end of the driving motor, and a rotating shaft fixedly connected to the outer wall of the short-cut plate. When the utility model is short-cutting the carbon fiber prepreg tape, the carbon fiber prepreg tape is placed on the bottom plate, the driving motor will drive the feed roller to rotate, the feed roller will contact the carbon fiber prepreg tape and drive the carbon fiber prepreg tape to move to the right under the action of friction. In this process, the driving motor will drive the cutting shaft to move up and down, thereby cutting the carbon fiber prepreg tape, and after cutting, the cutting blade will move upward and separate from the carbon fiber prepreg tape, thereby reducing the load on the cutting blade, thereby increasing the service life of the blade and improving the practicality of the device.

[0004] However, although the above case can improve the service life of the blade, there is no detailed description on how to disassemble the knife roller, and when cutting, the upward movement of the knife roller will cause the prepreg tape at the cutting position to move upward, thereby causing displacement of the prepreg tape, which will have a certain impact on the length of the short-cut prepreg tape.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The utility model aims to provide a detachable knife roller for chopping prepreg tapes in order to solve the above problems.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a detachable knife roller for short cutting of prepreg tapes, comprising a support assembly, a cutter assembly is fixed on the top of the support assembly, the cutter assembly comprises a support frame, the support frame is fixed on the top of the support assembly, a slide groove is provided on one side of the support frame, a blocking block is slidably connected to the inside of the support frame, a fixing screw is threadedly connected to the inside of the blocking block, the fixing screw is slidably connected to the inside of the support frame, a blade is slidably connected to one side of the slide groove, a docking hole is provided on one side of the blade, and a belt pressing assembly is fixed to one side of the blade.

[0008] Furthermore, the support assembly includes a support platform, a support leg is fixed to the bottom of the support platform, and a steering roller is rotatably connected inside the support platform.

[0009] Furthermore, a second steering roller is rotatably connected inside the support platform, an auxiliary roller is rotatably connected inside the support platform, and a first motor is fixed to one side of the support platform.

[0010] Furthermore, a driving roller is fixed to the output shaft end of the first motor, a belt is rotatably connected to one side of the driving roller, and a power component is fixed to the top of the support platform.

[0011] Furthermore, the power assembly includes a protective shell, which is fixed on the top of the support platform, a second motor is fixed on one side of the protective shell, and a gear 1 is fixed on the output shaft end of the second motor.

[0012] Furthermore, one side of the gear one is meshed with the gear two, one side of the gear two is fixed with a turntable, and one side of the turntable is rotatably connected with a rotating shaft.

[0013] Furthermore, a slide is rotatably connected to one side of the rotating shaft, and an insertion rod is fixed to one side of the slide.

[0014] Furthermore, the belt pressing assembly includes a connecting shell, the connecting shell is fixed on one side of the blade, a spring is fixed inside the connecting shell, a pressing plate is fixed at the end of the spring, and an anti-sticking plate is fixed at the bottom of the pressing plate.

[0015] The technical effects and advantages of the utility model are as follows: (1) by setting a cutter assembly, the butt hole on the blade is connected with the insertion rod, so that the sliding of the slide up and down can drive the blade to move synchronously, so that the prepreg tape can be cut. By screwing out the fixing screw from the block, the block can be pulled out, so that the blade can be taken out along the slide slot, so that the blade can be removed and replaced; (2) by setting a tape pressing assembly, the elasticity of the spring is used, so that when the single piece moves down, the prepreg tape can be pressed by the anti-sticking plate. When the blade moves up, the anti-sticking plate will not move up immediately under the action of the spring elastic force, so that when the blade moves up, the prepreg tape is still pressed, so that when the blade moves up, the prepreg tape will not be driven to move; (3) by setting a power assembly, the second motor is used to drive the gear one to rotate, so that the two gears two can rotate simultaneously, so that the two turntables respectively drive the two rotating shafts to move, so that the slide can move up and down, so that the insertion rod can drive the blade to move synchronously with the slide, so that the prepreg tape can be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the support assembly of the utility model;

[0018] Figure 3 It is a schematic diagram of the power assembly of the utility model;

[0019] Figure 4 It is a schematic diagram of the cutter assembly and the belt pressing assembly of the utility model.

[0020] In the figure: 100, support assembly; 101, support platform; 102, support leg; 103, steering roller one; 104, steering roller two; 105, auxiliary roller; 106, first motor; 107, active roller; 108, belt; 200, power assembly; 201, protective shell; 202, second motor; 203, gear one; 204, gear two; 205, turntable; 206, rotating shaft; 207, slide; 208, plug rod; 300, cutter assembly; 301, support frame; 302, slide; 303, block; 304, fixing screw; 305, blade; 306, docking hole; 400, belt pressing assembly; 401, connecting shell; 402, spring; 403, pressure plate; 404, anti-sticking plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, a detachable knife roller for chopping prepreg tapes comprises a support assembly 100, a cutter assembly 300 is fixed on the top of the support assembly 100, and the cutter assembly 300 comprises a support frame 301, the support frame 301 is fixed on the top of the support assembly 100, a slide groove 302 is provided on one side of the support frame 301, and the slide groove 302 can limit the moving direction of the blade 305, and a block 303 is slidably connected inside the support frame 301, and the blade 305 can be taken out by removing the block 303. The internal thread of 303 is connected with a fixing screw 304, and the fixing screw 304 is slidably connected to the inside of the support frame 301. A blade 305 is slidably connected to one side of the slide groove 302. There is a notch in the middle of the blade 305, and its purpose is to prevent the blade 305 from cutting the support platform 101. A docking hole 306 is opened on one side of the blade 305, and the docking hole 306 can allow the insertion of the insertion rod 208, thereby driving the blade 305 to move up and down through the insertion rod 208. A belt pressing assembly 400 is fixed on one side of the blade 305.

[0023] As a technical optimization scheme of the utility model, the support assembly 100 includes a support table 101, a support leg 102 is fixed at the bottom of the support table 101, a steering roller 103 is rotatably connected inside the support table 101, and a steering roller 2 104 is rotatably connected inside the support table 101. The function of the steering roller 103 and the steering roller 2 104 is to enable the belt 108 to be retracted into the support table 101, thereby ensuring that the blade 305 will not cut the belt 108. An auxiliary roller 105 is rotatably connected inside the support table 101, a first motor 106 is fixed on one side of the support table 101, an active roller 107 is fixed on the output shaft end of the first motor 106, and a belt 108 is rotatably connected to one side of the active roller 107. The belt 108 can transport the prepreg tape, and a power assembly 200 is fixed on the top of the support table 101.

[0024] As a technical optimization scheme of the utility model, the power component 200 includes a protective shell 201, which is fixed on the top of the support platform 101. A second motor 202 is fixed on one side of the protective shell 201. A gear 1 203 is fixed on the output shaft end of the second motor 202. A gear 2 204 is meshed with one side of the gear 1 203. There are two gears 204. A turntable 205 is fixed on one side of the gear 204. A rotating shaft 206 is rotatably connected to one side of the turntable 205. The rotating shaft 206 can be moved by the rotation of the turntable 205, thereby driving the slide 207 to move up and down. A slide 207 is rotatably connected to one side of the rotating shaft 206, and an insert rod 208 is fixed on one side of the slide 207.

[0025] As a technical optimization solution of the utility model, the pressing belt assembly 400 includes a connecting shell 401, which is fixed on one side of the blade 305. A spring 402 is fixed inside the connecting shell 401. The spring 402 can be compressed and released so that the anti-sticking plate 404 can contact the prepreg tape before the blade 305 and detach from the prepreg tape after the blade 305. A pressure plate 403 is fixed at the end of the spring 402, and an anti-sticking plate 404 is fixed at the bottom of the pressure plate 403. The anti-sticking plate 404 prevents the prepreg tape from sticking to the prepreg tape when moving upward.

[0026] When the utility model is in use, the first motor 106 is first started, so that the first motor 106 drives the active roller 107 to rotate, so that under the joint action of the steering roller 103, the steering roller 2 104 and the auxiliary roller 105, the belt 108 can rotate, and then the prepreg tape is placed on the belt 108, and as the belt 108 conveys the prepreg tape, the prepreg tape can pass through the bottom of the blade 305. When the prepreg tape needs to be cut, the second motor 202 is started, so that the second motor 202 drives the gear 1 203 to rotate, so that the gear 1 203 drives the gear 2 204 to rotate, so that the turntable 205 drives the rotating shaft 206 to move, and through the synchronous movement of the two rotating shafts 206, the slide 207 can move up and down under the limit of the protective shell 201, so that the blade 305 can be driven up and down by the insertion rod 208, so that the prepreg tape can be cut by the blade 305 The tape is cut. When the blade 305 is cutting, the first motor 106 stops working. When the blade 305 moves down, the anti-sticking plate 404 will first press on the prepreg tape. As the blade 305 continues to move down, the spring 402 will be compressed, and then the blade 305 will cut the prepreg tape. When the blade 305 moves up, the compressed spring 402 will be gradually released, thereby ensuring that the anti-sticking plate 404 is still pressed on the prepreg tape after the blade 305 moves up, so that the prepreg tape will not be driven by the upward movement of the blade 305. When the blade 305 needs to be replaced, unscrew the fixing screw 304, and then remove the blocking block 303 from the support frame 301, and then move the blade 305 up to the same height as the groove left after removing the blocking block 303, and then push the blade 305 to pull the blade 305 out of the insertion rod 208 and slide it out of the support frame 301, so that the blade 305 can be replaced.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] 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 detachable knife roll for chopped prepreg tape, comprising a support assembly (100), characterized in that: A cutter assembly (300) is fixed on the top of the support assembly (100), and the cutter assembly (300) comprises a support frame (301), the support frame (301) is fixed on the top of the support assembly (100), a slide groove (302) is provided on one side of the support frame (301), a block (303) is slidably connected inside the support frame (301), a fixing screw (304) is threadedly connected inside the block (303), and the fixing screw (304) is slidably connected inside the support frame (301), a blade (305) is slidably connected to one side of the slide groove (302), a docking hole (306) is provided on one side of the blade (305), and a belt pressing assembly (400) is fixed on one side of the blade (305).

2. A detachable knife roller for chopped prepreg tape according to claim 1, characterized in that: The support assembly (100) comprises a support platform (101), a support leg (102) is fixed at the bottom of the support platform (101), and a steering roller (103) is rotatably connected inside the support platform (101).

3. A detachable knife roller for chopped prepreg tape according to claim 2, characterized in that: A second steering roller (104) is rotatably connected inside the support platform (101), an auxiliary roller (105) is rotatably connected inside the support platform (101), and a first motor (106) is fixed on one side of the support platform (101).

4. A detachable knife roller for chopped prepreg tape according to claim 3, characterized in that: An active roller (107) is fixed to the output shaft end of the first motor (106), one side of the active roller (107) is rotatably connected to a belt (108), and a power assembly (200) is fixed to the top of the support platform (101).

5. The detachable knife roller for chopped prepreg tape according to claim 4, characterized in that: The power assembly (200) comprises a protective shell (201), the protective shell (201) is fixed on the top of the support platform (101), a second motor (202) is fixed on one side of the protective shell (201), and a gear 1 (203) is fixed on the output shaft end of the second motor (202).

6. A detachable knife roller for chopped prepreg tape according to claim 5, characterized in that: One side of the gear one (203) is meshed with the gear two (204), one side of the gear two (204) is fixed with a rotating disk (205), and one side of the rotating disk (205) is rotatably connected with a rotating shaft (206).

7. A detachable knife roller for chopped prepreg tape according to claim 6, characterized in that: One side of the rotating shaft (206) is rotatably connected to a slide (207), and one side of the slide (207) is fixed with an insertion rod (208).

8. The detachable knife roller for chopped prepreg tape according to claim 1, characterized in that: The belt pressing assembly (400) comprises a connecting shell (401), wherein the connecting shell (401) is fixed on one side of the blade (305), a spring (402) is fixed inside the connecting shell (401), a pressing plate (403) is fixed at the end of the spring (402), and an anti-sticking plate (404) is fixed at the bottom of the pressing plate (403).

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