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CN-224210012-U - Cutting device for continuous fiber 3D printing

CN224210012UCN 224210012 UCN224210012 UCN 224210012UCN-224210012-U

Abstract

The utility model provides a cutting device for 3D printing of continuous fibers, and relates to the technical field of 3D printing application equipment. The cutting device comprises a supporting seat, a sliding block, a blade, a driving device, a first guiding part and a second guiding part, wherein the sliding block can be arranged on the supporting seat in a linear movement mode, the blade is fixedly arranged on the sliding block, a first cutter hole and a second cutter hole are sequentially formed in the same height of the blade along the sliding direction of the sliding block, the first guiding part and the second guiding part are fixedly arranged on two sides of the thickness direction of the blade, a first through hole and a second through hole which are matched with the fiber diameter are respectively formed in the first guiding part and the second guiding part, the second through hole and the first through hole are coaxially arranged, and the driving device drives the sliding block to drive the first cutter hole and the second cutter hole to reciprocate between the first through hole and the second through hole. According to the cutting device, the first cutter holes and the second cutter holes alternately cut the fibers, so that the problem that printing and subsequent connection are difficult after the fibers are cut can be solved, and the cutting efficiency can be improved.

Inventors

  • LIU QUAN
  • ZHAO WEISHENG
  • LU KAI
  • LI HUIQING

Assignees

  • 山东双一科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (10)

  1. 1. A cutting device for 3D printing of continuous fibers, comprising: a support base; the sliding block can be arranged on the supporting seat in a linear movement manner; The blade is fixedly arranged on the sliding block, a first cutter hole and a second cutter hole are sequentially formed in the blade along the sliding direction of the sliding block, and the first cutter hole and the second cutter hole are positioned at the same height of the blade; The first guide part is fixed on the supporting seat and positioned at one side of the thickness direction of the blade, and a first through hole matched with the fiber diameter is formed in the first guide part; The second guide part is fixed on the supporting seat and is arranged on the other side of the blade in the thickness direction opposite to the first guide part, a second through hole matched with the fiber diameter is formed in the second guide part, and the second through hole and the first through hole are coaxially arranged; The driving device is arranged on the supporting seat and used for driving the sliding block to reciprocate so as to drive the first cutter hole and the second cutter hole to reciprocate between the first through hole and the second through hole.
  2. 2. The cutoff device according to claim 1, wherein the driving device comprises a first screw and a second screw, the first screw and the second screw being arranged in parallel in a vertical direction, the first screw and the second screw being rotatably mounted on the support base, respectively, and the slider being slidably mounted on the support base through the first screw and the second screw.
  3. 3. The cutoff device according to claim 2, wherein the drive device further comprises a first power device and a second power device, an output shaft of the first power device being fixedly connected to the first lead screw, an output shaft of the second power device being fixedly connected to the second lead screw.
  4. 4. The cutting device according to claim 2, wherein the support base comprises a bottom plate, a first baffle plate and a second baffle plate which are oppositely arranged at two ends of the bottom plate, one end of the bottom plate is fixedly connected with the first baffle plate, the other end of the bottom plate is fixedly connected with the second baffle plate, one end of the first screw rod is rotatably connected with the first baffle plate, the other end of the first screw rod is rotatably connected with the second baffle plate, one end of the second screw rod is rotatably connected with the first baffle plate, and the other end of the second screw rod is rotatably connected with the second baffle plate.
  5. 5. The cutoff device according to claim 2, wherein the slider comprises a first beam, a second beam, and a connecting plate fixedly disposed between the first beam and the second beam, one end of the blade is fixedly connected to the first beam, and the other end of the blade is fixedly connected to the second beam.
  6. 6. The cutoff device according to claim 5, wherein the first lead screw is threadably coupled to the first beam and the second lead screw is threadably coupled to the second beam.
  7. 7. The cutoff device according to claim 1, further comprising a first fixing plate having one end fixedly connected to the bottom of the support base and the other end extending in the direction of the first guide portion extending into and fixedly connected to the first fixing plate.
  8. 8. The cutoff device according to claim 1, further comprising a second fixing plate, wherein one end of the second fixing plate is fixedly connected to the bottom of the supporting seat, and the other end of the second fixing plate extends in a direction toward the second guiding portion, and the second guiding portion extends into the second fixing plate and is fixedly connected to the second fixing plate.
  9. 9. The cutoff device according to claim 1, wherein the first and second cutter holes are tapered holes, the aperture of the tapered hole toward one end of the first guide portion is smaller than the aperture toward one end of the second guide portion, one end of the second guide portion toward the blade is provided with a tapered groove communicating with the through hole in the second guide portion, and the large end of the tapered groove is directed toward the blade and has a diameter larger than the diameter of the tapered hole.
  10. 10. The cutoff device according to claim 2, wherein the first lead screw and the second lead screw are rotatably mounted on the support base by bearings, respectively.

Description

Cutting device for continuous fiber 3D printing Technical Field The utility model relates to the technical field of 3D printing application equipment, in particular to a cutting device for continuous fiber 3D printing. Background Composite 3D technology is an emerging manufacturing technology combining additive manufacturing with composite preparation, aimed at exploiting the flexibility of additive manufacturing and the excellent properties of composite materials to break through the limitations of traditional manufacturing processes. In the technical field of 3D printing of continuous fiber reinforced composite materials, accurate cutting and splicing of fiber materials are key technical links for ensuring printing continuity. The mechanical fiber cutting device commonly adopted in the prior art, but after finishing single cutting action, the cutter head in the technical scheme must go through complete mechanical return cycle to start the next cutting action, so that the problem of difficult wire feeding exists, the wire feeding needs to be manually carried out during the next cutting, and the cutting rate is lower because the cutter head needs a certain time to return. Disclosure of utility model In view of the above problems in the prior art, the present utility model provides a cutting device for 3D printing of continuous fibers, so as to solve the problem of difficult filament feeding of the conventional cutting device. In order to achieve the above and other related objects, the utility model provides a cutting device for 3D printing of continuous fibers, which comprises a supporting seat, a sliding block, a blade, a driving device, a first guide part and a second guide part, wherein the sliding block can be arranged on the supporting seat in a linear movement manner, the blade is fixedly arranged on the sliding block, a first cutter hole and a second cutter hole are sequentially arranged on the blade along the sliding direction of the sliding block, the first cutter hole and the second cutter hole are positioned at the same height of the blade, the first guide part is fixed on the supporting seat and is positioned on one side of the thickness direction of the blade, a first through hole matched with the diameter of the fiber is arranged on the first guide part, the second guide part is fixed on the supporting seat and is arranged on the other side of the thickness direction of the blade opposite to the first guide part, a second through hole matched with the diameter of the fiber is arranged on the second guide part, the second through hole and the first through hole are coaxial, and the driving device is arranged on one side of the supporting seat, and the driving device is used for driving the first through hole and the second through hole to reciprocate between the supporting seat and the first through hole. In an embodiment of the present utility model, the driving device includes a first screw and a second screw, the first screw and the second screw are arranged in parallel in a vertical direction, the first screw and the second screw are rotatably mounted on the supporting seat, respectively, and the slider is slidably mounted on the supporting seat through the first screw and the second screw. In an embodiment of the present utility model, the driving device further includes a first power device and a second power device, an output shaft of the first power device is fixedly connected with the first screw, and an output shaft of the second power device is fixedly connected with the second screw. In an embodiment of the utility model, the support seat comprises a bottom plate, a first baffle plate and a second baffle plate which are oppositely arranged at two ends of the bottom plate, one end of the bottom plate is fixedly connected with the first baffle plate, the other end of the bottom plate is fixedly connected with the second baffle plate, one end of a first screw rod is rotatably connected with the first baffle plate, the other end of the first screw rod is rotatably connected with the second baffle plate, one end of the second screw rod is rotatably connected with the first baffle plate, and the other end of the second screw rod is rotatably connected with the second baffle plate. In an embodiment of the present utility model, the slider includes a first beam, a second beam, and a connection plate fixedly disposed between the first beam and the second beam, one end of the blade is fixedly connected to the first beam, and the other end of the blade is fixedly connected to the second beam. In one embodiment of the present utility model, the first screw is screwed to the first beam, and the second screw is screwed to the second beam. In an embodiment of the utility model, the cutting device further includes a first fixing plate, one end of the first fixing plate is fixedly connected with the bottom of the supporting seat, the other end of the first fixing plate extends towards the direction