CN114476807B - Automatic slitting and rewinding device for prepreg - Google Patents

Automatic slitting and rewinding device for prepreg Download PDF

Info

Publication number
CN114476807B
CN114476807B CN202210216029.8A CN202210216029A CN114476807B CN 114476807 B CN114476807 B CN 114476807B CN 202210216029 A CN202210216029 A CN 202210216029A CN 114476807 B CN114476807 B CN 114476807B
Authority
CN
China
Prior art keywords
roller
traction
knife
circular
circular knife
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210216029.8A
Other languages
Chinese (zh)
Other versions
CN114476807A (en
Inventor
李军利
黄子如
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai University of Engineering Science
Original Assignee
Shanghai University of Engineering Science
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai University of Engineering Science filed Critical Shanghai University of Engineering Science
Priority to CN202210216029.8A priority Critical patent/CN114476807B/en
Publication of CN114476807A publication Critical patent/CN114476807A/en
Application granted granted Critical
Publication of CN114476807B publication Critical patent/CN114476807B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/028—Both ends type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Details Of Cutting Devices (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention discloses an automatic prepreg slitting and rewinding device which comprises an unreeling mechanism, a slitting mechanism, a transverse cutting mechanism, a reeling mechanism and a waste collecting mechanism, wherein the slitting mechanism is used for carrying out traction and slitting on prepregs discharged by the unreeling mechanism and comprises a traction roller, a compression roller, a circular knife roller and a knife holder roller, wherein the traction roller and the compression roller are used for realizing traction and are mutually matched; the traction roller, the tool apron roller and the circular knife roller are further connected through a transmission mechanism, the transmission mechanism adopts a synchronous belt and gear matching structure and is further connected with a motor, and the motor is used for driving the traction roller, the tool apron roller and the circular knife roller to rotate through the transmission mechanism and driving the compression roller to rotate through friction force, so that the traction and the slitting of the prepreg are realized.

Description

Automatic slitting and rewinding device for prepreg
Technical Field
The invention belongs to the technical field of automatic wire laying, and particularly relates to an automatic slitting and rewinding device for prepregs.
Background
The slitting process of the carbon fiber prepreg is an end link of carbon fiber prepreg production, and the main function of the slitting process is to slit the wide semi-finished carbon fiber prepreg into narrow bands with different standard specifications and requirements, so that the slitting process is an important tie for linking the production and the application of the carbon fiber prepreg.
When the existing splitting machine is used for splitting carbon fiber prepreg, the splitting precision is not up to standard, the splitting is continuous, the splitting is uneven, the splitting is drawn, and the quality problem of the splitting is caused, and the splitting quality problem is mainly caused by the deviation of the position of the carbon fiber during unreeling, the matching tightness degree of a cutter set during splitting is insufficient, the traction of a compression roller is not stable enough, the tension of a winding and unreeling part fluctuates, the existing splitting machine is used for discussing tension control and correction, but the improvement of the traction splitting part is not much, so the improvement on the aspect of researching is urgently needed to adapt to the requirements of prepreg splitting.
Disclosure of Invention
The invention provides an automatic prepreg slitting and rewinding device, which is convenient for adjusting the traction pressing force and is beneficial to guiding prepregs by improving a traction slitting mechanism; the transmission system for traction slitting is improved, the influence of friction on the circular knife is reduced, the tight matching degree between the circular knife and the knife holder is enhanced, the slitting precision is improved, and the slitting quality is ensured; meanwhile, the control device for unreeling deviation correction is changed, so that the position adjustment of the wide fiber band during unreeling is more accurate and rapid.
The invention can be realized by the following technical scheme:
the automatic slitting and rewinding device for the prepreg comprises an unreeling mechanism, a slitting mechanism, a transverse cutting mechanism, a winding mechanism and a waste collecting mechanism, wherein the slitting mechanism is used for carrying out traction and slitting on the prepreg released by the unreeling mechanism and comprises a traction roller, a compression roller, a circular knife roller and a knife holder roller, wherein the traction roller and the compression roller are used for realizing traction and are mutually matched; when the traction slitting is carried out, the cooperation of the compression roller and the traction roller and the cooperation of the circular knife roller and the knife holder roller are in accordance with the traction slitting assembly;
the traction roller, the tool apron roller and the circular knife roller are further connected through a transmission mechanism, the transmission mechanism adopts a synchronous belt and gear matching structure and is further connected with a motor, and the motor is used for driving the traction roller, the tool apron roller and the circular knife roller to rotate through the transmission mechanism and driving the compression roller to rotate through friction force, so that the traction and the slitting of the prepreg are realized.
Further, protection machanism includes the U-shaped connecting rod, U-shaped connecting rod links to each other with actuating mechanism, and one of them free end rotates with the tip of compression roller through elastic adjustment mechanism and is connected, and another free end rotates with the tip of circle sword roller and is connected, actuating mechanism is used for driving compression roller, circle sword roller through the U-shaped connecting rod and moves to the direction that keeps away from or is close to traction roller, blade holder roller, elastic adjustment mechanism is used for adjusting the contact pressure between compression roller and the traction roller when cutting, ensures to pull in place.
Further, the ends of the press roller and the circular knife roller are respectively connected with corresponding sliding blocks, the two sliding blocks are arranged on corresponding sliding rails, the sliding rails are arranged along the axial center line perpendicular to the press roller or the circular knife roller, and the driving mechanism is used for driving the ends of the press roller and the circular knife roller to respectively move along the corresponding sliding rails together with the sliding blocks through the U-shaped connecting rod, so that the press roller and the circular knife roller are driven to move in the direction away from or close to the traction roller and the knife holder roller.
Further, actuating mechanism sets up to the cylinder, the central point of cylinder and U-shaped connecting rod puts and is connected, the free end of U-shaped connecting rod all is provided with annular clamp, annular clamp suit is at the tip of compression roller or circular knife roller, both normal running fit.
Further, the elastic adjusting mechanism comprises a connecting rod, one end of the connecting rod is rotationally connected with the end part of the compression roller, a hollow cavity is formed in the other end of the connecting rod, the cavity extends inwards from the end surface of the other end of the connecting rod along the axial center line of the connecting rod, the inner diameter of the cavity is matched with the outer diameter of the straight rod, a step is formed in the inner wall, close to the other end of the connecting rod, of the cavity, an annular bulge matched with the step is formed in one end of the straight rod, the straight rod is clamped on the step of the cavity and can move along the cavity, and a compression spring is arranged between the straight rod and the cavity;
the novel U-shaped roller is characterized in that one free end of the U-shaped connecting rod is also of a hollow structure, a plurality of strip-shaped openings are formed in the side wall of the hollow structure at intervals, the strip-shaped openings extend along the axial direction of one free end, the other end of the straight rod is sleeved in the U-shaped connecting rod, a lock nut is sleeved at the joint of the free end and the other end of the straight rod, the depth of the straight rod inserted into the free end is adjusted by loosening or tightening the lock nut, the length of the free end is changed, and therefore the contact pressure between the compression roller and the traction roller is adjusted.
Further, the transmission mechanism comprises a first gear and a second gear which are meshed with each other, a central shaft of the first gear is coaxially connected with the end part of the tool apron roller, the first gear is rotationally connected with the end part of the traction roller through a gear belt, the end part of the traction roller is rotationally connected with an output shaft of the motor through a synchronous belt,
the central shaft of the second gear is opposite to the end part of the circular knife roller, the axial central line of the second gear is collinear with the axial central line of the circular knife roller, an electromagnetic sleeve is sleeved on the central shaft of the second gear, a permanent magnet is further arranged at the end part of the circular knife roller, the outer diameter of the permanent magnet is matched with the inner diameter of the electromagnetic sleeve, and the electromagnetic sleeve is controlled to move towards a direction close to or far away from the permanent magnet by changing the direction of the electrified current by utilizing the electromagnetic adsorption principle, so that the coaxial connection or disconnection of the central shafts of the circular knife roller and the second gear is realized.
Further, the circular knife roller comprises a first roller, a plurality of circular knives are uniformly arranged on the first roller at intervals, the knife holder roller comprises a second roller, a plurality of knife holder bodies are uniformly arranged on the second roller at intervals, the knife holder bodies are arranged in one-to-one correspondence with the circular knives,
each circular knife comprises a circular knife blade, a spring and a circular truncated cone pressing block which are sequentially sleeved on a first roller, each knife seat body comprises a knife seat and a round truncated cone stop block which are sequentially sleeved on a second roller at intervals, each circular knife is clamped in a gap between the knife seat of the corresponding knife seat body and the round truncated cone stop block, the circular knife blade is staggered and connected to the corresponding base, the circular truncated cone pressing block is in contact fit with the corresponding round truncated cone stop block,
the size of the gap between the cutter seat and the inverted circular truncated cone stop block is changed, and the pressure of the circular truncated cone pressing block to the circular blade through the spring is regulated, so that the contact pressure between the circular blade and the cutter seat is regulated, and the cutting in place is ensured.
Further, the external diameter of circle blade is greater than the biggest external diameter of round platform briquetting, and all is greater than the external diameter of spring the big head of round platform dog is provided with the ring body, the ring body suit is on the second roller, and its external diameter is the same with the external diameter of blade holder.
Further, unreeling mechanism includes unreeling roller, unreel the both ends of roller and rotate respectively and set up on the top surface of support, the bottom surface of support sets up on the guide rail, the guide rail sets up along unreeling roller's axial, the side of support links to each other with hydraulic push rod, hydraulic push rod is used for driving the support and unreels the roller along the guide rail together with unreeling roller and unreels the axial movement of roller promptly.
The beneficial technical effects of the invention are as follows:
1. according to the invention, the compression roller and the circular knife roller are pushed to move towards the traction roller and the knife holder roller by the air cylinder, so that the compression of the prepreg and the matching of the knife are realized, the safety protection effect is achieved, meanwhile, the installed elastic connecting mechanism is convenient for adjusting the compression force between the compression roller and the traction roller, and the built-in compression spring can ensure the stability of force in the running process.
2. According to the novel circular knife and the knife holder, the circular table pressing block and the inverted circular table stop block which are matched with each other are additionally arranged in the novel circular knife and the knife holder, and the circular knife and the knife holder are staggered and overlapped more tightly through contact deformation of the circular knife and the knife holder, so that the carbon fiber prepreg is cut more smoothly; the inverted circular table stop block is arranged adjacent to the cutter seat, the distance is adjustable, so that the degree of tightness of the cutter joint is changed, a cylinder is additionally arranged at the large head part of the inverted circular table stop block, the diameter of the cylinder is consistent with that of the cutter seat, and the two ends of the prepreg at the cut part are conveniently supported.
3. The invention reasonably adjusts the transmission system of the slitting mechanism, so that a better transmission relation exists among the traction roller, the circular knife roller and the knife rest roller, the traction roller and the knife rest roller are connected through the toothed belt, and the rotation speed of the knife rest roller is higher than that of the traction roller under a certain rotation speed ratio, thereby being beneficial to the cutting of prepreg; the electromagnetic shaft sleeve is connected with the circular knife roll, so that the prepreg can pass through the circular knife by friction, and the abrasion and influence of friction force on the circular knife are reduced.
4. The electro-hydraulic servo-controlled electro-hydraulic push rod device is used as a deviation correcting mechanism, has high control precision, stepless regulation and control and quick response, can timely cope with complex position change in the unreeling process caused by processing or mounting precision, unstable tension or flaw in the reeling and forming of the wide prepreg tape roll, has high output power, and can easily move the wide prepreg tape roll with large roll diameter.
5. The invention improves the cutting quality through the improvement of the deviation correcting position control mode, the cutter fitting and the cutting transmission system, the cutting width can reach 6mm, the maximum continuous cutting can reach 600m, the maximum cutting speed can reach 30m/min, and the cutting precision is less than 0.1mm; the winding tension is 0N-10N, the unwinding tension is 10N, and the tension precision is controlled to be less than 0.1N; the rewinding width gradually decreases layer by layer, and the tower type winding is performed, so that the carbon fiber and the PE film can be simultaneously cut, and the processing links are reduced.
Drawings
FIG. 1 is a schematic side view of the general structure of the present invention;
FIG. 2 is a schematic side view of the general structure of the present invention;
FIG. 3 is a schematic view of the overall structure of the slitting machine of the present invention, wherein reference numeral A indicates an elastic adjustment mechanism;
FIG. 4 is a schematic diagram showing the overall structure of the slitting mechanism according to the invention;
FIG. 5 is a schematic view of the mating structure of the circular knife and the knife holder body of the present invention;
FIG. 6 is an enlarged schematic view of the mark A of FIG. 3 in accordance with the present invention;
FIG. 7 is an exploded view of the spring adjustment mechanism of the present invention;
FIG. 8 is a schematic view of a portion of the unreeling mechanism of the present invention;
the device comprises a 1-unreeling mechanism, a 101-unreeling roller, a 102-bracket, a 103-guide rail, a 104-hydraulic push rod, a 2-transverse cutting mechanism, a 3-slitting mechanism, a 301-traction roller, a 302-compression roller, a 303-round knife roller, a 304-knife holder roller, a 305-motor, a 306-first gear, a 307-second gear, a 308-gear belt, a 309-synchronous belt, a 310-electromagnetic sleeve, a 311-electromagnetic connecting rod, a 312-sliding block, a 313-sliding rail, a 314-annular clamp, a 316-connecting rod, a 317-straight rod, a 318-compression spring, a 319-locking nut, a 320-round knife, a 3201-round knife blade, a 3202-spring, a 3202-round knife holder, a 321-knife holder body, a 3211-knife holder, a 3212-round knife block, a 4-reeling mechanism and a 5-waste collecting mechanism.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings and preferred embodiments.
Referring to fig. 1-4, the invention provides an automatic slitting and rewinding device for prepregs, which comprises an unreeling mechanism 1, a transverse cutting mechanism 2, a slitting mechanism 3, a winding mechanism 4 and a waste collecting mechanism 5, wherein the unreeling mechanism 1 is used for unreeling coiled prepregs; the transverse cutting mechanism 2 is used for cutting the rolled prepreg to finish final rolling; the winding mechanism 4 is used for winding the unreeled prepreg; the waste collection mechanism 5 is used for recycling waste generated during prepreg cutting; the slitting mechanism 3 is used for carrying out traction and slitting on the prepreg discharged by the unreeling mechanism 1, and comprises a traction roller 301, a compression roller 302, a circular knife roller 303 and a knife holder roller 304, wherein the traction roller 301 and the compression roller 302 are used for realizing traction and are mutually matched, the circular knife roller 303 and the knife holder roller 304 are used for realizing slitting, two ends of the compression roller 302 and the circular knife roller 303 are respectively connected with corresponding protection mechanisms, and the protection mechanisms are used for adjusting the distances between the compression roller 302 and the traction roller 301 and between the circular knife roller 303 and the knife holder roller 304, so that the distances between the compression roller 302 and the traction roller 301 and between the circular knife roller 303 and the knife holder roller 304 are ensured when the slitting is not carried out in a traction mode; when the traction slitting is carried out, the cooperation of the compression roller 302 and the traction roller 301 and the cooperation of the circular knife roller 303 and the knife holder roller 304 conform to the traction slitting assembly, so that the damage to the contacted compression roller 302 and the traction roller 301, the circular knife roller 303 and the knife holder roller 304 caused by accidental collision and the like can be reduced, a certain protection effect is achieved, and the maintenance is more convenient.
The traction roller 301, the tool apron roller 304 and the circular knife roller 303 are further connected through a transmission mechanism, the transmission mechanism adopts a synchronous belt and gear matching structure, the synchronous belt and gear matching structure is further connected with a motor 305, the motor 305 is used for driving the traction roller 301, the tool apron roller 304 and the circular knife roller 303 to rotate through the transmission mechanism, and the pressing roller 302 is driven to rotate through friction force, so that the traction and slitting of the prepreg are realized, in particular, the device comprises a first gear 306 and a second gear 307 which are meshed with each other, a central shaft of the first gear 306 is coaxially connected with the end part of the tool apron roller 304, the end part of the traction roller 301 is rotationally connected with the end part of the traction roller 301 through a gear belt 308, the end part of the traction roller 301 is rotationally connected with an output shaft of the motor 305 through a synchronous belt 309, in this way, the power of the motor 305 is transmitted to the traction roller 301, the tool apron roller 304 and the circular knife roller 303 through the transmission mechanism, the rotation of the tool apron roller 304 is changed into active driving through friction and passive driving, the protection of the circular knife and the tool apron roller 301 and the pressing roller 302 are further facilitated, the traction and the friction driving between the traction roller 301 and the pressing roller 302 is still realized, and the diameter of different pulleys in the transmission mechanism can be adjusted, the transmission ratio of the transmission is further, the transmission ratio of the transmission roller is controlled, and the diameter of the different pulleys in the transmission is further, the transmission roller 301 is controlled, and the diameter of the end part is further, and the roller 301 is further improved, the quality is further improved, and the quality when the slitting speed is improved, and the quality is in the speed of the slitting speed of the prepreg is or has higher than the speed, when the cutter roller 301 is or has and has higher than the speed, and has and can and higher speed.
Meanwhile, as the circular knife roller 303 moves, the circular knife roller 304 and the transmission mechanism adopt a non-fixed connection mode, namely, the central shaft of the second gear 307 is opposite to the end part of the circular knife roller 303, the axial central line of the second gear 307 is collinear with the axial central line of the circular knife roller 303, the central shaft of the second gear 307 is sleeved with the electromagnetic sleeve 310, the end part of the circular knife roller 303 is also provided with a permanent magnet, the outer diameter of the permanent magnet is matched with the inner diameter of the electromagnetic sleeve 310, the outer diameter of the permanent magnet can be consistent with the outer diameter of the end part of the circular knife roller 303, and the electromagnetic sleeve 310 is controlled to move towards a direction close to or far away from the permanent magnet by changing the direction of the current by utilizing the electromagnetic adsorption principle, so that the coaxial connection or the disconnection of the central shafts of the circular knife roller 303 and the second gear 307 is realized. When the circular knife roll needs to move, the electromagnetic sleeve is electrified to enable the adopted magnetic field to be the same as the magnetic field direction close to the end part of the permanent magnet, the electromagnetic sleeve 310 is pushed to move along the central shaft of the second gear 307 according to the principle of like poles repulsive to enable the electromagnetic sleeve 310 to be separated from the permanent magnet, and the coaxial connection between the circular knife roll 303 and the central shaft of the second gear is released, so that convenience is provided for the movement of the circular knife roll; similarly, when the circular knife roller 303 moves in place and needs to work with the knife holder roller 304, reverse current is supplied to the electromagnetic sleeve 310, so that the adopted magnetic field is opposite to the magnetic field close to the end part of the permanent magnet, and the electromagnetic sleeve 310 is pushed to move along the central shaft of the second gear 307 according to the principle of opposite attraction, so that the permanent magnet can enter the interior of the electromagnetic sleeve 310 and be tightly attracted together, the coaxial connection between the central shaft of the second gear 307 and the circular knife roller 303 is realized, and rotation can be realized under the drive of the motor 305 and the transmission mechanism.
The protection mechanism comprises a U-shaped connecting rod 311, wherein one free end of the U-shaped connecting rod 311 is rotationally connected with the end part of a press roller 302 through an elastic adjusting mechanism, the other free end of the U-shaped connecting rod is rotationally connected with the end part of a circular knife roller 303, the driving mechanism is used for driving the press roller 302 and the circular knife roller 303 to move in a direction away from or close to a traction roller 301 and a knife holder roller 304 through the U-shaped connecting rod 311, the elastic adjusting mechanism is used for adjusting the contact pressure between the press roller 302 and the traction roller 301 during slitting to ensure traction in place, and the protection mechanism is specifically as follows:
the ends of the press roller 302 and the circular knife roller 303 are respectively connected with corresponding sliding blocks 312, the two sliding blocks 312 are opposite to the ends of the press roller 302 and the circular knife roller 303, the two sliding blocks 312 are respectively arranged on corresponding sliding rails 313, the sliding rails 313 are arranged along the axial center line perpendicular to the press roller 302 or the circular knife roller 303, the sliding rails 313 can be arranged at corresponding positions of a frame of the whole device, the free ends of the U-shaped connecting rods 311 are respectively provided with annular clamps 314, the annular clamps 314 are sleeved at the ends of the press roller 302 or the circular knife roller 303, bearings can be arranged at the ends of the press roller 302 or the circular knife roller 303 to realize the running fit, and thus a driving mechanism can drive the ends of the press roller 302 and the circular knife roller 303 to respectively move along corresponding sliding rails 313 through the U-shaped connecting rods 311, so as to drive the press roller 302 and the circular knife roller 303 to move away from or close to the traction roller 301 and the knife roller 304, distances between the press roller 302 and the circular knife roller 303 are not contacted with the knife roller 304 when traction slitting operation is not executed, accidental damage is avoided, and when traction slitting operation is required to be executed, the press roller 302 and the circular knife roller 303 and the knife roller 304 are in line with the cutter assembly requirements.
Because the motion direction and distance of the press roller 302 and the circular knife roller 303 are fixed, the driving mechanism is set as an air cylinder, the piston rod of the air cylinder can be connected with the central position of the U-shaped connecting rod 311, the driving force provided by the air cylinder can be ensured to be uniformly applied to the press roller and the circular knife roller, the motion is smooth, meanwhile, the U-shaped connecting rod can be formed by butt joint of two L-shaped rods, and then the two L-shaped rods and the piston rod are connected together by utilizing a T-shaped three-way joint, so that the assembly is realized.
Referring to fig. 1, 6 and 7, the elastic adjusting mechanism includes a connecting rod 316, one end of the connecting rod 316 is a free end of a U-shaped connecting rod 311, one end of the connecting rod is rotatably connected with an end of the pressing roller 302, which can be implemented by adopting the structure described above, the other end of the connecting rod is provided with a hollow cavity, the cavity extends inwards along an axial center line of the connecting rod 316 from an end surface of the other end of the connecting rod, an inner diameter of the cavity is matched with an outer diameter of the straight rod 317, a step is arranged on an inner wall of the cavity near the other end of the connecting rod 316, an annular bulge matched with the step is arranged at one end of the straight rod 317, a clamping connection between the straight rod 317 and the cavity is implemented by matching the step and the annular bulge, and a compression spring 318 is arranged between the straight rod 317 and the cavity, so as to facilitate the connection, the connecting rod 316 can be made of a non-rigid material with a certain hardness, such as spring steel;
the free end of the U-shaped connecting rod 311 also adopts a hollow structure, a plurality of strip-shaped openings are uniformly arranged on the side wall of the hollow structure at intervals, the strip-shaped openings extend along the axial direction of the free end, so that the free end of the U-shaped connecting rod 311 can have elastic adjusting space, the other end of the straight rod 317 is sleeved in the free end of the U-shaped connecting rod 311, a locking nut 319 is sleeved at the joint of the free end and the free end, thus, the length of the free end of the U-shaped connecting rod 311 can be adjusted by loosening or tightening the locking nut 319, the depth of the straight rod 317 inserted into the free end can be adjusted, the contact pressure between the press roller 302 and the traction roller 301 can be adjusted, the slitting quality can be greatly improved, meanwhile, a compression spring 318 is arranged between the connecting rod 316 and the straight rod 317, the elastic contact between the press roller 302 and the traction roller 301 can be realized by virtue of the compression spring 318, and a certain self-adaptive adjusting effect can be realized on different gaps between the press roller and the traction roller due to the conditions of the thickness of the surface dryness of a prepreg, and the like, and the traction process is ensured.
Referring to fig. 5, the circular knife roller 303 includes a first roller on which a plurality of circular knives 320 are uniformly spaced, the knife holder roller 304 includes a second roller on which a plurality of knife holders 321 are uniformly spaced, and the knife holders 321 are disposed in one-to-one correspondence with the circular knives 320, wherein the first roller and the second roller may also be linear shafts, each of the circular knives 320 includes a circular knife blade 3201, a spring 3202 and a circular truncated cone block 3203 sequentially sleeved on the first roller, each of the knife holders 321 includes a knife holder 3211 and a rounded truncated cone block 3212 sequentially sleeved on the second roller at intervals, each of the circular knives 320 is clamped inside a gap between the knife holder of the corresponding knife holder 3211 and the rounded cone block 3212, the circular knife blade 3201 thereof is staggered and is overlapped on the corresponding knife holder 3211, and the circular truncated cone block 3203 thereof is in contact engagement with the corresponding rounded cone block 3212, so that the pressure applied to the knife holder 3201 by the spring 3202 is varied by the gap size between the knife holder 3211 and the rounded cone block 3203, thereby ensuring the contact between the knife holder and the circular truncated cone block 3201. Simultaneously, in order to ensure that the round platform dog of falling can exert pressure to round platform briquetting better, the biggest external diameter of this round platform briquetting is less than the external diameter of round blade, but needs to be greater than the external diameter of spring, in addition, this blade holder adopts cylinder structure, still be provided with the tourbillon at the big head of round platform dog of falling, this tourbillon also suit is on the second roller, it becomes integrated into one piece with the round platform dog of falling, its external diameter is unanimous with the external diameter of blade holder, like this, can support the prepreg jointly through blade holder and tourbillon, more be favorable to follow-up cutting operation.
Referring to fig. 8, the unreeling mechanism 1 includes an unreeling roller 101, two ends of the unreeling roller 101 are respectively rotatably disposed on a top surface of a support 102, a bottom surface of the support 102 is disposed on a guide rail 103, the guide rail 103 is disposed along an axial direction of the unreeling roller 101, a side surface of the support 102 is connected with a hydraulic push rod 104, the hydraulic push rod 104 is used for driving the support 102 and the unreeling roller 101 to move along the guide rail 103, namely the axial direction of the unreeling roller 101, when the unreeling direction is deviated, the hydraulic push rod is controlled to drive the support and the unreeling roller to move according to the deviation, so that the prepreg can be controlled to be in a correct cutting position in real time, and the unreeling of the carbon fiber prepreg is realized by matching with the unreeling roller.
The support 102 comprises a base which is arranged on the guide rail 103 in a sliding manner, two ends of the base are respectively provided with a support plate, the top end of each support plate is provided with a C-shaped bayonet, the C-shaped bayonet is matched with the end part of the unreeling roller 101, a bearing seat matched with the end part of the unreeling roller 101 can be additionally arranged, and the unreeling roller 101 can rotate conveniently.
While particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely illustrative, and that many changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.

Claims (5)

1. The utility model provides an automatic rewinding unit that cuts of prepreg, includes unreeling mechanism, cuts mechanism, crosscut mechanism, winding mechanism and receipts useless mechanism, its characterized in that: the slitting mechanism is used for carrying out traction and slitting on the prepreg discharged by the unreeling mechanism and comprises a traction roller, a compression roller, a circular knife roller and a knife holder roller, wherein the traction roller and the compression roller are used for realizing traction and are matched with each other, the circular knife roller and the knife holder roller are used for realizing slitting and are matched with each other, two ends of the compression roller and the circular knife roller are respectively connected with corresponding protection mechanisms, and the protection mechanisms are used for adjusting the distances between the compression roller and the traction roller and between the circular knife roller and the knife holder roller so as to ensure that the distances between the compression roller and the traction roller and between the circular knife roller and the knife holder roller are kept when slitting is not carried out; when the traction slitting is carried out, the cooperation of the compression roller and the traction roller and the cooperation of the circular knife roller and the knife holder roller are in accordance with the traction slitting assembly;
the traction roller, the tool apron roller and the circular knife roller are also connected through a transmission mechanism, the transmission mechanism adopts a synchronous belt and gear matching structure and is also connected with a motor, and the motor is used for driving the traction roller, the tool apron roller and the circular knife roller to rotate through the transmission mechanism and driving the compression roller to rotate through friction force so as to realize traction and slitting of the prepreg;
the protection mechanism comprises a U-shaped connecting rod, one free end of the U-shaped connecting rod is connected with a driving mechanism in a rotating way through an elastic adjusting mechanism, the other free end of the U-shaped connecting rod is connected with the end part of the pressing roller in a rotating way, the driving mechanism is used for driving the pressing roller and the circular knife roller to move in a direction away from or close to the traction roller and the knife holder roller through the U-shaped connecting rod, and the elastic adjusting mechanism is used for adjusting the contact pressure between the pressing roller and the traction roller during slitting to ensure that the traction is in place;
the transmission mechanism comprises a first gear and a second gear which are meshed with each other, a central shaft of the first gear is coaxially connected with the end part of the tool apron roller, the first gear is rotationally connected with the end part of the traction roller through a gear belt, the end part of the traction roller is rotationally connected with an output shaft of the motor through a synchronous belt,
the central shaft of the second gear is opposite to the end part of the circular knife roller, the axial central line of the second gear is collinear with the axial central line of the circular knife roller, an electromagnetic sleeve is sleeved on the central shaft of the second gear, a permanent magnet is further arranged at the end part of the circular knife roller, the outer diameter of the permanent magnet is matched with the inner diameter of the electromagnetic sleeve, and the electromagnetic sleeve is controlled to move towards a direction close to or far away from the permanent magnet by changing the direction of the electrified current by utilizing the electromagnetic adsorption principle, so that the coaxial connection or disconnection of the central shafts of the circular knife roller and the second gear is realized;
the circular knife roll comprises a first roll, a plurality of circular knives are uniformly arranged on the first roll at intervals, the knife holder roll comprises a second roll, a plurality of knife holder bodies are uniformly arranged on the second roll at intervals, the knife holder bodies are arranged in one-to-one correspondence with the circular knives,
each circular knife comprises a circular knife blade, a spring and a circular truncated cone pressing block which are sequentially sleeved on a first roller, each knife block body comprises a knife block and a round truncated cone blocking block which are sequentially sleeved on a second roller at intervals, each circular knife is clamped in a gap between the knife block and the round truncated cone blocking block of the corresponding knife block body, the circular knife blade is staggered and connected to the corresponding knife block, the circular truncated cone pressing block is in contact fit with the corresponding round truncated cone blocking block,
the contact pressure between the round blade and the cutter holder is adjusted by changing the size of the gap between the cutter holder and the inverted round table stop block and adjusting the pressure of the round table pressing block to the round blade through the spring, so that the cutting in place is ensured;
the unreeling mechanism comprises unreeling rollers, two ends of each unreeling roller are respectively rotatably arranged on the top surface of the corresponding support, the bottom surface of the corresponding support is arranged on the corresponding guide rail, the guide rail is arranged along the axial direction of the unreeling rollers, the side surface of the corresponding support is connected with a hydraulic push rod, and the hydraulic push rod is used for driving the corresponding support to move along the corresponding guide rail along the axial direction of the unreeling rollers.
2. The automated prepreg slitting and rewinding device as claimed in claim 1, wherein: the end parts of the press roller and the circular knife roller are respectively connected with corresponding sliding blocks, the two sliding blocks are arranged on corresponding sliding rails, the sliding rails are arranged along the axial center line perpendicular to the press roller or the circular knife roller, and the driving mechanism is used for driving the end parts of the press roller and the circular knife roller to move along the corresponding sliding rails together with the sliding blocks through the U-shaped connecting rod, so that the press roller and the circular knife roller are driven to move in the direction away from or close to the traction roller and the knife holder roller.
3. The automated prepreg slitting and rewinding device as claimed in claim 2, wherein: the driving mechanism is arranged as an air cylinder, the air cylinder is connected with the central position of the U-shaped connecting rod, the free ends of the U-shaped connecting rod are respectively provided with an annular clamp, and the annular clamps are sleeved at the end parts of the compression roller or the circular knife roller and are in running fit.
4. The automated prepreg slitting and rewinding device as claimed in claim 1, wherein: the elastic adjusting mechanism comprises a connecting rod, one end of the connecting rod is rotationally connected with the end part of the compression roller, a hollow cavity is formed in the other end of the connecting rod, the cavity extends inwards from the end surface of the other end of the connecting rod along the axial center line of the connecting rod, the inner diameter of the cavity is matched with the outer diameter of the straight rod, a step is formed in the inner wall, close to the other end of the connecting rod, of the cavity, an annular bulge matched with the step is formed in one end of the straight rod, the straight rod is clamped on the step of the cavity and can move along the cavity, and a compression spring is arranged between the straight rod and the cavity;
the novel U-shaped roller is characterized in that one free end of the U-shaped connecting rod is also of a hollow structure, a plurality of strip-shaped openings are formed in the side wall of the hollow structure at intervals, the strip-shaped openings extend along the axial direction of one free end, the other end of the straight rod is sleeved in the U-shaped connecting rod, a lock nut is sleeved at the joint of the free end and the other end of the straight rod, the depth of the straight rod inserted into the free end is adjusted by loosening or tightening the lock nut, the length of the free end is changed, and therefore the contact pressure between the compression roller and the traction roller is adjusted.
5. The automated prepreg slitting and rewinding device as claimed in claim 1, wherein: the outer diameter of the circular blade is larger than the maximum outer diameter of the circular truncated cone pressing block and is larger than the outer diameter of the spring, the large head of the inverted circular truncated cone stop block is provided with a circular ring body, the circular ring body is sleeved on the second roller, and the outer diameter of the circular ring body is the same as the outer diameter of the cutter holder.
CN202210216029.8A 2022-03-07 2022-03-07 Automatic slitting and rewinding device for prepreg Active CN114476807B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210216029.8A CN114476807B (en) 2022-03-07 2022-03-07 Automatic slitting and rewinding device for prepreg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210216029.8A CN114476807B (en) 2022-03-07 2022-03-07 Automatic slitting and rewinding device for prepreg

Publications (2)

Publication Number Publication Date
CN114476807A CN114476807A (en) 2022-05-13
CN114476807B true CN114476807B (en) 2023-06-02

Family

ID=81486610

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210216029.8A Active CN114476807B (en) 2022-03-07 2022-03-07 Automatic slitting and rewinding device for prepreg

Country Status (1)

Country Link
CN (1) CN114476807B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173313A (en) * 1975-09-11 1979-11-06 Rogers J W Metal web handling method, apparatus and coil construct
EP0006507A2 (en) * 1978-06-16 1980-01-09 Ignazio De Felice Apparatus for cutting ribbons from rolls of textile fabrics made of heat weldable yarns
CN204847523U (en) * 2015-08-06 2015-12-09 广东九佛新材料科技有限公司 A roller structure for unload
CN105173828A (en) * 2015-08-11 2015-12-23 张家港市兰航机械有限公司 Traction winding machine
CN205684516U (en) * 2016-06-25 2016-11-16 浙江博凡实业有限公司 Steel belt splitting machine material collecting device
KR101955266B1 (en) * 2018-11-16 2019-03-08 (주)현대티에스 Apparatus for rewinding slitting film
CN208916437U (en) * 2018-08-02 2019-05-31 珠海三协电子有限公司 A kind of efficient film cutting machine
JP2020168715A (en) * 2019-03-31 2020-10-15 デクセリアルズ株式会社 Slitting device, slitting method, and laminated tape
CN214086993U (en) * 2020-12-22 2021-08-31 秦皇岛恒起科技有限公司 Three-section tension plastic packaging film cutting machine
CN113602880A (en) * 2021-07-27 2021-11-05 上海工程技术大学 Automatic coiling device of cloth for weaving

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10313774B4 (en) * 2002-12-18 2006-12-14 Koenig & Bauer Ag Device for processing a moving material web

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173313A (en) * 1975-09-11 1979-11-06 Rogers J W Metal web handling method, apparatus and coil construct
EP0006507A2 (en) * 1978-06-16 1980-01-09 Ignazio De Felice Apparatus for cutting ribbons from rolls of textile fabrics made of heat weldable yarns
CN204847523U (en) * 2015-08-06 2015-12-09 广东九佛新材料科技有限公司 A roller structure for unload
CN105173828A (en) * 2015-08-11 2015-12-23 张家港市兰航机械有限公司 Traction winding machine
CN205684516U (en) * 2016-06-25 2016-11-16 浙江博凡实业有限公司 Steel belt splitting machine material collecting device
CN208916437U (en) * 2018-08-02 2019-05-31 珠海三协电子有限公司 A kind of efficient film cutting machine
KR101955266B1 (en) * 2018-11-16 2019-03-08 (주)현대티에스 Apparatus for rewinding slitting film
JP2020168715A (en) * 2019-03-31 2020-10-15 デクセリアルズ株式会社 Slitting device, slitting method, and laminated tape
CN214086993U (en) * 2020-12-22 2021-08-31 秦皇岛恒起科技有限公司 Three-section tension plastic packaging film cutting machine
CN113602880A (en) * 2021-07-27 2021-11-05 上海工程技术大学 Automatic coiling device of cloth for weaving

Also Published As

Publication number Publication date
CN114476807A (en) 2022-05-13

Similar Documents

Publication Publication Date Title
CN107512614A (en) Material strip automatic cutter
CN114476807B (en) Automatic slitting and rewinding device for prepreg
CN201276377Y (en) Decoiling slitting apparatus
CN111376483B (en) Nose bridge line feeding mechanism
CN211034607U (en) Slitting device for transfer paper
EP1040895B1 (en) Band saw for continuous cutting of logs of web material
CN217780278U (en) Spliced cord fabric winding device based on automatic lining cloth deviation correction
CN217192871U (en) Aluminum casting rolling production slitting device
CN211125349U (en) Iron core winding device
US5007270A (en) Web handling apparatus for metal ribbon stock
CN110424144B (en) Full-automatic multi-layer cloth laying cutting bed
CN216272332U (en) Roll feeding device of splitting machine
CN217807644U (en) Carbon fiber prepreg cuts apparatus for producing
CN112551240B (en) Guide roller, steel belt guide mechanism and material receiving system
KR102219005B1 (en) Slitter for cutting cord band
CN117161597B (en) Welding production line of strip steel for automobile
CN213708939U (en) Winding and slitting device
CN215854189U (en) Rolling device and non-woven fabric high-speed slitting and winding machine
CN218289850U (en) Film width cutting device
CN214920539U (en) Automatic feeding device for shaft sleeve machining lathe
CN112429563B (en) Cutting device is used in plastic film processing
CN219926239U (en) Copper foil production cuts integrated device
CN210795232U (en) Coil stock processingequipment of unpowered mode self-balancing
CN220641938U (en) Cloth spreading machine
CN219822556U (en) Feeding mechanism with multiple conveying modes

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant