CN112722917B - Automatic tracking unwinding device - Google Patents
Automatic tracking unwinding device Download PDFInfo
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- CN112722917B CN112722917B CN202011561217.1A CN202011561217A CN112722917B CN 112722917 B CN112722917 B CN 112722917B CN 202011561217 A CN202011561217 A CN 202011561217A CN 112722917 B CN112722917 B CN 112722917B
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- frame
- deviation rectifying
- active
- limiting
- unwinding
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- 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
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- 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
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Unwinding Webs (AREA)
Abstract
The application relates to an automatic tracking unreeling device, which comprises a rack, a deviation correcting mechanism and an unreeling mechanism; the deviation rectifying mechanism comprises an active deviation rectifying assembly and an offset detecting assembly, the active deviation rectifying assembly comprises an active deviation rectifying frame and an active driving piece for driving the active deviation rectifying frame to move, the active deviation rectifying frame is arranged on the rack in a sliding mode, the unreeling mechanism is fixed on the active deviation rectifying sliding frame, and the active driving piece is arranged on the rack; the deviation detection assembly comprises a sensor, the sensor is fixed on the rack, and the sensor is electrically connected with the active driving piece and controls the start and stop of the active driving piece. The application has the advantages of correcting the feeding direction of the section bar of the extruding machine and improving the qualification rate of the section bar produced by the extruding machine.
Description
Technical Field
The application relates to the technical field of extruders, in particular to an automatic tracking unwinding device.
Background
The extruder is the main equipment for producing light alloy (aluminum alloy, copper alloy and magnesium alloy) tubes, rods and profiles. The metal extrusion is an important method for plastic pressure forming of metal, and its important feature is that the metal ingot blank is once processed into tube, bar and section in the transient period.
In the related art, an extruder generally includes a frame, an extruding mechanism, and a feeding mechanism, and both the extruding mechanism and the feeding mechanism are disposed on the frame. The extrusion mechanism comprises two extrusion rollers which are rotatably erected on the rack and a driving piece for driving the two extrusion rollers to rotate, the two extrusion rollers are axially parallel, the rotation directions of the two extrusion rollers are opposite, and a gap for the section bar to pass through is reserved between the two extrusions. The feeding mechanism comprises an unwinding frame and an unwinding roller, the unwinding roller is rotatably erected on the unwinding frame, and the section to be processed is wound on the unwinding roller. During the extrusion operation, the staff stretches into the clearance between two squeeze rolls with the tip of the section bar of treating processing, then starts two of driving piece drive and unreels the roller and rotate, and two unreel the roller and will treat the tip extrusion of the section bar of processing, drive subsequent section bar through two squeeze rolls and by extrusion, unreel the roller simultaneously and be driven by the section bar and rotate, last will unreel the section bar of treating processing.
In view of the above-mentioned related arts, the inventor believes that when two extrusion rollers extrude a profile, the profile is subjected to uneven pressure, which tends to cause the profile to shift in the direction of entering the gap between the two extrusion rollers, resulting in an unqualified extruded profile and having a problem to be improved.
Disclosure of Invention
In order to reduce and take place the direction skew when the section bar gets into the clearance between two squeeze rolls, lead to the unqualified condition of extrusion's section bar, this application provides an automatic tracking unwinding device.
The application provides an automatic tracking unwinding device adopts following technical scheme:
an automatic tracking unreeling device comprises a rack, a deviation correcting mechanism and an unreeling mechanism; the deviation rectifying mechanism comprises an active deviation rectifying assembly and a deviation detecting assembly, the active deviation rectifying assembly comprises an active deviation rectifying frame and an active driving piece for driving the active deviation rectifying frame to move, the active deviation rectifying frame is arranged on the rack in a sliding mode, the unreeling mechanism is fixed on the active deviation rectifying sliding frame, and the active driving piece is arranged on the rack; the deviation detection assembly comprises a sensor, the sensor is fixed on the rack, and the sensor is electrically connected with the active driving piece and controls the start and stop of the active driving piece.
Through adopting above-mentioned technical scheme, when the section bar takes place the skew before getting into the clearance between the squeeze roll, sensor perception section bar takes place the skew, starts the initiative driving piece drive initiative deviation correcting frame and slides in the frame, corrects the direction that the section bar got into clearance between the squeeze roll, helps improving the qualification rate of the section bar of extruder output.
Optionally, the deviation correcting mechanism includes a passive deviation correcting component, and the passive deviation correcting component includes a passive deviation correcting frame, a limiting rod, and a passive driving member for driving the limiting rod to move; the passive deviation rectifying frame is arranged on the ground and is positioned between the extrusion roller and the active deviation rectifying frame; the limiting rods are arranged on the passive deviation rectifying frame in a sliding mode, the limiting rods are at least provided with two limiting rods, gaps between the limiting rods are just opposite to gaps between the two extrusion rollers along the feeding direction of the section bar, and the section bar penetrates through the gaps between the two limiting rods.
By adopting the technical scheme, the gap between the two limiting rods is just opposite to the gap between the two extrusion rollers, so that the profile moves to the driven deviation rectifying frame.
Optionally, the unwinding mechanism includes an unwinding frame and an unwinding disc, and the unwinding frame is fixed to the active deviation rectifying frame; the unwinding frame is coaxially provided with a first rotor and a second rotor through a rotating frame, the unwinding disc is rotatably arranged between the first rotor and the second rotor, and the section bar is wound on the unwinding disc; and the unwinding frame is provided with an adjusting assembly for adjusting the distance between the first rotor and the second rotor and a speed-limiting assembly for limiting the unwinding speed of the unwinding disc.
By adopting the technical scheme, the unwinding disc is rotatably erected between the first rotor and the second rotor, and the rotating speed of the unwinding disc is limited by the speed limiting assembly, so that the profile keeps a tensioning state when being fed, the condition that the profile deviates in the direction when entering between the extrusion rollers is reduced, and the qualification rate of the profile extruded by the extruder is further improved.
Optionally, the adjusting assembly includes an internal thread sleeve, a rotating part and an adjusting driving part for driving the rotating part to rotate, the internal thread sleeve is fixed on the unwinding frame, the rotating part is coaxially slidably arranged in the internal thread sleeve and is in threaded fit with the internal thread sleeve, and the rotating part slides in a direction close to or far away from the second rotor; the first rotor is rotatably arranged on one side of the rotating part close to the square reel.
Through adopting above-mentioned technical scheme, adjust drive assembly drive rotation portion and rotate, drive rotation portion and move in the internal thread sleeve pipe, and then drive first rotor and be close to or keep away from the second rotor, adjust the interval between first rotor and the second rotor, improved the adaptability of unreeling the frame to the coil of unidimensional unreeling.
Optionally, a stop bolt penetrates through the internal thread sleeve, and an end of the stop bolt penetrates through the internal thread sleeve and abuts against the surface of the rotating portion.
Through adopting above-mentioned technical scheme, the locking bolt has reduced the portion of rotating not hard up, and then has reduced the not taut condition when the section bar feeds, helps improving the qualification rate of the section bar that the extruder extrudes.
Optionally, the speed-limiting assembly includes a speed-limiting disc, a shaft sleeve, a speed-limiting shaft and a clamping structure, the shaft sleeve is fixed on the unwinding frame, and an axis of the shaft sleeve coincides with an axis of the internal thread sleeve; the speed-limiting shaft penetrates through the shaft sleeve and is in rotating fit with the speed-limiting shaft, the second rotor is coaxially and fixedly connected with one end of the speed-limiting shaft, and the speed-limiting disc is fixed on one end, far away from the second rotor, of the speed-limiting shaft; the clamping structure clamps the speed limiting disc.
By adopting the technical scheme, the clamping structure clamps the speed limiting disc, and the clamping structure rubs with the speed limiting disc to limit the rotating speed of the unwinding disc, so that the section is kept in a tensioning state when being fed, and the qualification rate of the section extruded by the extruder is improved.
Optionally, the clamping structure includes a first chuck and a second chuck, the first chuck and the second chuck are both disposed on the unwinding frame, the side faces of the first chuck and the second chuck, which are close to each other, abut against the two sides of the speed-limiting disc in the thickness direction, and the unwinding frame is further provided with an elastic adjusting member for adjusting clamping force of the first chuck and the second chuck.
Through adopting above-mentioned technical scheme, press from both sides tight structure and press from both sides tight dynamics undersize, the speed-limiting effect of speed-limiting disc to unreeling the reel is not good, presss from both sides tight structure and presss from both sides tight dynamics too big, and the section bar exists the condition of being broken by the extruder, and the tight dynamics of pressing from both sides tight speed-limiting disc is pressed from both sides to first chuck and second chuck is adjusted to elasticity regulating part, has improved the adaptability of unreeling the frame to the reel rotational speed of putting of difference.
Optionally, one side of the unreeling frame close to the clamping structure is fixed with an extension plate, the tightness adjusting piece comprises a screw rod, the screw rod penetrates through the extension plate and is in threaded fit with the extension plate, and one end of the screw rod is abutted to the first chuck.
Through adopting above-mentioned technical scheme, the lead screw is chooseed for use to the tight regulation piece, simple structure, and it is comparatively convenient to adjust the operation of pressing from both sides tight structure clamping force degree, has improved the convenience that presss from both sides tight structure and adjusts the operation.
In summary, the present application includes at least one of the following beneficial technical effects:
when the profile deviates before entering the gap between the extrusion rollers, the sensor senses the deviation of the profile, the active driving part is started to drive the active deviation correcting frame to slide on the rack, the direction of the profile entering the gap between the extrusion rollers is corrected, and the qualification rate of the profile output by the extruder is improved;
the passive deviation rectifying frame is arranged, so that the qualification rate of the section bar produced by the extruder is further improved;
by arranging the speed limiting assembly and the elastic adjusting piece, the profile is kept in a tensioning state during feeding, and the qualification rate of the profile produced by the extruder is improved.
Drawings
FIG. 1 is an isometric view of an overall structure of an unreeling device of an extruding machine, which is mainly used for embodying the deviation rectifying function of the embodiment of the application;
FIG. 2 is a schematic diagram of a passive deviation rectifying rack and a limiting rod structure according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a driving deviation rectifying rack according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an embodiment of the present application, which is mainly used for embodying the structure of the adjusting assembly;
FIG. 5 is a schematic diagram of an embodiment of the present application, which is mainly used for embodying the structure of an optoelectronic switch;
FIG. 6 is a partial view of the structure of the speed limiting assembly of the present application;
fig. 7 is a schematic diagram of an embodiment of the present application, which is mainly used for embodying a reel release structure.
Reference numerals: 001. a squeeze roll; 1. a frame; 11. a supporting base; 111. a base plate; 112. a vertical plate; 1121. a guide bar; 113. a limiting sleeve; 2. a deviation rectifying mechanism; 21. an active deviation rectifying component; 211. an active deviation rectifying frame; 2111. a driving roller; 2112. a drive shaft; 2113. a driven roller; 2114. a driven shaft; 212. an active drive; 2121. a drive motor; 2122. a driving gear; 2123. a driven gear; 2124. a chain; 22. a passive deviation rectifying component; 221. a passive deviation rectifying frame; 222. a limiting rod; 2221. a hinge plate; 2222. a kidney-shaped groove; 2223. jacking the bolt; 223. a passive drive member; 2231. a deviation rectifying spring; 23. an offset detection component; 231. a sensor; 2311. a photoelectric switch; 3. an unwinding mechanism; 31. unwinding the frame; 311. a support bar; 312. a support plate; 313. an ear plate; 32. placing the reel; 321. a limiting disc; 3211. mounting holes; 3212. a stop hole; 3213. a stopper post; 322. a rotating shaft; 4. a first rotor; 5. a second rotor; 6. an adjustment assembly; 61. an internally threaded sleeve; 611. a stop bolt; 62. a rotating part; 63. adjusting the driving member; 631. a first hand wheel; 7. a speed limiting component; 71. a speed limiting disc; 72. a shaft sleeve; 73. a speed limiting shaft; 74. a clamping structure; 741. a first chuck; 7411. a first clamping block; 7412. a first hook; 742. a second chuck; 7421. a second clamp block; 7422. a second hook; 75. mounting a plate; 76. an extension plate; 761. a slack adjuster; 7611. a screw rod; 7612. a second hand wheel; 77. an anti-loosening spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses automatic tracking unwinding device.
Referring to fig. 1, the device comprises a frame 1, a deviation rectifying mechanism 2 and an unwinding mechanism 3. The deviation rectifying mechanism 2 comprises an active deviation rectifying component 21, a passive deviation rectifying component 22 and an offset detection component 23. The active deviation rectification assembly 21 comprises an active deviation rectification frame 211 and an active driving member 212 for driving the active deviation rectification frame 211 to move.
When feeding materials to the extruding machine, the sectional materials are unreeled through the unreeling mechanism 3 and are conveyed to the space between the extruding rollers 001 of the extruding machine through the active deviation rectifying assembly 21 and the passive deviation rectifying assembly 22. In the feeding process, when the section material deviates in the feeding process, the passive deviation rectifying assembly 22 rectifies the feeding direction of the section material; when the deviation detection component 23 detects that the profile deviates, the active deviation rectifying component 21 acts to rectify the feeding direction of the profile.
Referring to fig. 2, the frame 1 includes a support base 11, the support base 11 includes a bottom plate 111 and a vertical plate 112, the bottom plate 111 is horizontally placed on the ground, and the vertical plate 112 is vertically fixed on the bottom plate 111. The number of the support seats 11 is two, the bottom plate 111 corresponds to the vertical plates 112 one by one, and the vertical plates 112 of the two support seats 11 are arranged oppositely.
Referring to fig. 2, guide rods 1121 are horizontally erected between the two vertical plates 112, the length direction of the guide rods 1121 is perpendicular to the feeding direction of the section bar, there are two guide rods 1121, and the two guide rods 1121 are spaced apart in the vertical direction between the two vertical plates 112. The passive deviation rectifying assembly 22 includes a passive deviation rectifying frame 221, a limit rod 222 and a passive driving member 223. The passive deviation rectifying frame 221 is hollow and rectangular, the width direction of the passive deviation rectifying frame 221 is parallel to the feeding direction of the profile, two sides of the width direction of the passive deviation rectifying frame 221 are open, the two guide rods 1121 both penetrate through two sides of the length direction of the passive deviation rectifying frame 221, the passive deviation rectifying frame 221 and the two guide rods 1121 are in sliding fit, and the passive deviation rectifying frame 221 slides on the two guide rods 1121 along the length direction of any one of the guide rods 1121. The passive driving member 223 may be a deviation rectifying spring 2231, one deviation rectifying spring 2231 is disposed at both ends of each guide rod 1121 in the length direction and on the shaft sleeve 72, one end of the deviation rectifying spring 2231 abuts against the vertical plate 112, the other end of the deviation rectifying spring 223abuts against the outer wall of the passive deviation rectifying frame 221, and when the passive deviation rectifying frame 221 is located at the initial position, the lengths of the four deviation rectifying springs 2231 are equal to the original length thereof.
Referring to fig. 2, one end of each guide rod 1121, located in the passive deviation rectifying frame 221, is sleeved with a limiting sleeve 113, the limiting sleeves 113 correspond to the guide rods 1121 one by one, and the rotating sleeves are in rotating fit with the corresponding guide rods 1121. During feeding, the section bar passes through a gap between the two limiting sleeves 113, and the two limiting sleeves 113 limit the feeding direction of the section bar to deviate along the vertical direction.
Referring to fig. 2, the limiting rod 222 is vertically arranged, two ends of the limiting rod 222 are hinged to hinge plates 2221, one end of each hinge plate 2221 located at the upper end of the limiting rod 222 is hinged to the limiting rod 222, the other end of each hinge plate 2221 is hinged to the upper side of the passive deviation rectifying frame 221, the hinge plates 2221 are horizontally arranged, one end of each hinge plate 2221 located at the lower end of the limiting rod 222 is hinged to the limiting rod 222, and the other end of each hinge plate 2221 is hinged to the lower side of the passive deviation rectifying frame 221. Each hinge plate 2221 is provided with a waist-shaped groove 2222 from top to bottom, the waist-shaped groove 2222 penetrates through the hinge plate 2221, a tightening bolt 2223 penetrates through the waist-shaped groove 2222, the end parts of the hinge plate 2221, the tightening bolts 2223 and the waist-shaped groove 2222 which correspond to the tightening bolts 2223 one by one penetrate through the limiting groove and are in threaded fit with the passive deviation correcting frame 221, the end part of the tightening bolt 2223 is in sliding fit with the waist-shaped groove 2222, and when the tightening bolt 2223 limits the movement of the hinge plate 2221, the nut of the tightening bolt 2223 is tightly pressed on one side, away from the passive deviation correcting frame 221, of the corresponding hinge plate 2221. The number of the limiting rods 222 is two, and the two limiting rods 222 are both located at the downstream of the passive deviation rectifying frame 221 along the profile feeding direction.
Before the section is fed, a worker firstly unscrews the puller bolt 2223, adjusts the position of the limiting rods 222 to enable the gap between the two limiting rods 222 to be just opposite to the gap between the two extrusion rollers 001 of the extruder, screws the puller bolt 2223 after the adjustment is completed, and then starts the extrusion operation. When the horizontal feeding direction of the sectional material deviates, the sectional material drives the limiting rod 222 to move, the limiting rod 222 drives the passive deviation rectifying frame 221 to move, so that the deviation rectifying spring 2231 on one side of the length direction of the passive deviation rectifying frame 221 extends, the deviation rectifying spring 2231 on the other side shortens, then the elastic force of the deviation rectifying spring 2231 drives the passive deviation rectifying frame 221 to recover the original position, and the deviation rectifying spring 2231 has a buffering effect, so that the sectional material is not easily broken when the feeding direction deviates.
Referring to fig. 3, the active deviation rectifying frame 211 is horizontally arranged and is in a rectangular frame shape, the width direction of the active deviation rectifying frame 211 is parallel to the feeding direction of the profile, two driving rollers 2111 are arranged on one side of the lower side of the active deviation rectifying frame 211 along the length direction of the active deviation rectifying frame 211, a driving shaft 2112 is coaxially arranged between the two driving rollers 2111 in a penetrating manner, the length direction of the driving shaft 2112 is parallel to the width direction of the active deviation rectifying frame 211, the two driving rollers 2111 are rotationally matched with the driving shaft 2112, two driven rollers 2113 are arranged on the other side of the active deviation rectifying frame, a driven shaft 2114 is coaxially arranged between the two driven rollers 2113 in a penetrating manner, the length direction of the driven shaft 2114 is parallel to the width direction of the active deviation rectifying frame 211, and the two driven rollers 2113 are rotationally matched with the driven shaft 2114. The two driving rollers 2111 and the two driven rollers 2113 are matched with the ground in a rolling manner and roll along the length direction of the driving deviation rectifying frame 211.
Referring to fig. 3 and 4, the driving member 212 includes a driving motor 2121, the driving motor 2121 is fixed on the upper side of the driving deviation rectifying frame 211 and is located above the driving shaft 2112, a driven gear 2123 is coaxially fixed on an end of the driving shaft 2112 close to the driving motor 2121, a driving gear 2122 is coaxially fixed on an output shaft of the driving motor 2121, and the driving gear 2122 and the driven gear 2123 are driven by a chain 2124.
Referring to fig. 5, the deviation detecting assembly 23 includes a sensor 231, the sensor 231 may be a photoelectric switch 2311, the photoelectric switch 2311 is fixed on each of the two vertical plates 112, the two photoelectric switches 2311 are located on the same horizontal plane, and the two photoelectric switches 2311 are symmetrically distributed on the rack 1. The two photoelectric switches 2311 are electrically connected with the driving motor 2121 and can control the start and stop of the driving motor 2121, and when the two photoelectric switches 2311 are switched on, the rotation directions of the output shaft of the driving motor 2121 are opposite.
When the feeding direction deviates in the horizontal direction in the section feeding process, the section drives the passive deviation rectifying frame 221 to slide on the guide rod 1121 towards one end of the guide rod 1121, so that the passive deviation rectifying frame 221 triggers a photoelectric switch 2311, then the photoelectric switch 2311 starts a driving motor 2121, an output shaft of the driving motor 2121 rotates to drive a driving gear 2122 to rotate, the driving gear 2122 drives a driven gear 2123 to rotate through a chain 2124, and further drives a driving shaft 2112 to rotate, and finally drives the driving deviation rectifying frame 211 to move in the direction opposite to the section deviating direction until the feeding direction of the section is corrected.
Referring to fig. 4, unwinding mechanism 3 is including unreeling frame 31, unreel frame 31 and four spinal branch vaulting poles 311 including the backup pad 312 and the vertical setting, the lower extreme of spinal branch vaulting pole 311 all with initiative frame 211 integrated into one piece that rectifies, four spinal branch vaulting poles 311 are the rectangular distribution on initiative frame 211 that rectifies, backup pad 312 level is fixed in the upper end of four spinal branch vaulting poles 311, backup pad 312 upside is vertical to be formed with two otic placodes 313, the thickness direction of two otic placodes 313 all is on a parallel with the length direction who initiatively rectifies frame 211, and two otic placodes 313 are along initiatively rectifying frame 211 length direction interval distribution in backup pad 312. The unwinding frame 31 is provided on both sides of the upper side of the active deviation rectifying frame 211 along the length direction of the active deviation rectifying frame 211.
Referring to fig. 4, the first rotor 4 is provided on one of the unwinding frames 31, and the second rotor 5 is provided on the other unwinding frame 31. Be provided with adjusting part 6 on the unreeling rack 31 of first rotor 4, adjusting part 6 includes that adjusting part 6 includes internal thread sleeve 61, rotation part 62 and is used for driving rotation part 62 and rotates regulation driving piece 63. The internal thread sleeve 61 penetrates through the two ear plates 313 of the unwinding frame 31 provided with the first rotor 4 along the length direction of the active deviation rectifying frame 211, and the internal thread sleeve 61 is detachably and fixedly connected with the two ear plates 313. The rotating portion 62 is cylindrical, and the rotating portion 62 coaxially penetrates the female screw bushing 61 and is screwed into the female screw bushing 61. The two ends of the rotating part 62 extend out of the internal thread sleeve 61, and the first rotor 4 is coaxially and rotatably arranged at one end of the rotating part 62 close to the middle part of the driving deviation rectifying frame 211. The adjusting drive member 63 may be a first hand wheel 631, and the first hand wheel 631 is coaxially fixed to an end of the rotating portion 62 away from the first rotor 4.
Referring to fig. 4, a stop bolt 611 is inserted through a sidewall of the internally threaded sleeve 61 from top to bottom, the stop bolt 611 is threadedly engaged with the sidewall of the internally threaded sleeve 61, and an end of the stop bolt 611 abuts against a sidewall of the rotating portion 62. The number of the stop bolts 611 may be determined according to the friction force required for limiting the rotation of the rotating portion 62 in practical use, and two stop bolts are selected in the present embodiment.
Referring to fig. 4 and 6, the unwinding frame 31 far from the first rotor 4 is provided with a speed limiting assembly 7 for limiting the rotation speed of the second rotor 5. The speed limiting assembly 7 comprises a speed limiting disc 71, a shaft sleeve 72, a speed limiting shaft 73 and a clamping structure 74. The axial direction of the shaft sleeve 72 is parallel to the length direction of the active deviation rectifying frame 211, and the shaft sleeve 72 penetrates through the two ear plates 313 far away from the first rotor 4 and is fixedly connected with the two ear plates 313. The speed limiting shaft 73 coaxially penetrates through the shaft sleeve 72 and is in rotating fit with the shaft sleeve 72, two ends of the speed limiting shaft 73 penetrate through the shaft sleeve 72, the second rotor 5 is coaxially fixed at one end of the speed limiting shaft 73 close to the first rotor 4, and the speed limiting disc 71 is coaxially fixed at the other end of the speed limiting shaft 73.
Referring to fig. 6, a mounting plate 75 is fixed to the side of the unwinding frame 31 close to the second rotor 5 away from the first rotor 4. The clamping structure 74 includes a first clamping head 741 and a second clamping head 742, the first clamping head 741 is disposed horizontally, one end of the first clamping head 741 in the horizontal direction is hinged to the mounting plate 75, and the other end is bent upward and hinged to a first clamping block 7411. The second clamp 742 is vertically disposed, the upper end of the second clamp 742 is hinged to a second clamp block 7421, and the middle portion of the second clamp is hinged to the mounting plate 75 and one end of the first clamp 741 close to the mounting plate 75. The side surfaces of the first clamp block 7411 and the second clamp block 7421 which are close to each other abut against the both side surfaces in the thickness direction of the governor disc 71. The extension plate 76 is provided with a tension adjusting piece 761 for driving the first chuck 741 and the second chuck 742 to clamp the speed-limiting disc 71 and adjusting clamping force of the first chuck 741 and the second chuck 742. The elastic adjusting member 761 may be a screw rod 7611, the screw rod 7611 vertically penetrates the extension plate 76 and is in threaded fit with the extension plate 76, an upper end of the screw rod 7611 abuts against a lower side of the first chuck 741, and a second wheel 7612 is coaxially fixed to the other end of the screw rod 7611.
Referring to fig. 6, the surface of the speed-limiting disc 71 is uneven, and when the first chuck 741 and the second chuck 742 clamp the speed-limiting disc 71, large vibration is likely to occur, so that the first chuck 741 and the second chuck 742 clamp the speed-limiting disc 71 loosely, so that a first hook 7412 is formed upward at one end of the first chuck 741 away from the mounting plate 75, a second hook 7422 is formed downward at one end of the second chuck 742 away from the mounting plate 75, a locking spring 77 is disposed between the first hook 7412 and the second hook 7422, one end of the locking spring 77 is hung on the first hook 7412, and the other end is hung on the second hook 7422, and the locking spring 77 is in a compressed state, so that a part of the clamping force of the first chuck 741 and the second chuck 742 on the speed-limiting disc 71 is provided by the locking spring 77, and the vibration of the first chuck 741 and the second chuck 742 can be reduced by the locking spring 77 to be transmitted to the screw 7611, thereby reducing the loosening of the screw rod 7611, which causes the clamping of the first chuck 741 and the second chuck 742 to loosen.
Referring to fig. 6 and 7, the unwinding mechanism 3 further includes an unwinding disc 32, and the unwinding disc 32 includes a limiting disc 321 and a rotating shaft 322. The number of the limiting discs 321 is two, and the axes of the two limiting discs 321 are overlapped and are parallel to the length direction of the active deviation rectifying frame 211. Mounting holes 3211 are coaxially formed in each limiting disc 321, the first rotor 4 and the second rotor 5 penetrate into one mounting hole 3211 respectively, the rotating shaft 322 is coaxially rotatably erected between the two limiting discs 321, and two ends of the rotating shaft 322 are fixedly connected with the first rotor 4 and the second rotor 5 respectively. Stop holes 3212 are formed in the side faces, away from each other, of the two limiting discs 321, and the length direction of each stop hole 3212 is parallel to the length direction of the driving deviation rectifying frame 211. Two support rods 311 on each unreeling frame 31, which are close to the middle of the active deviation rectifying frame 211, are fixed with stop columns 3213, the stop columns 3213 are in one-to-one correspondence with the stop holes 3212, and the stop columns 3213 penetrate into the stop holes 3212 and are in splicing fit with the stop holes 3212. The profile to be machined is coiled around the side wall of the spindle 322.
Before unwinding, a worker firstly loosens the stop bolt 611, then rotates the first hand wheel 631 to drive the rotating part 62 to rotate, adjusts the distance between the first rotor 4 and the second rotor 5, then installs the unwinding frame 31 to coaxially fix the first rotor 4 and the second rotor 5 with the two ends of the rotating shaft 322 respectively, inserts the stop post 3213 into the stop hole 3212, and finally rotates the second hand wheel 7612 to adjust the force of the first chuck 741 and the second chuck 742 for clamping the speed-limiting disc 71.
The implementation principle of the embodiment of the application is as follows:
before unreeling, a worker firstly unscrews the stop bolt 611, then rotates the first hand wheel 631 to drive the rotating part 62 to rotate, adjusts the distance between the first rotor 4 and the second rotor 5, then installs the unreeling frame 31, so that the first rotor 4 and the second rotor 5 are respectively coaxially fixed with two ends of the rotating shaft 322, the stop column 3213 is inserted into the stop hole 3212, and finally rotates the second hand wheel 7612 to adjust the force of the first chuck 741 and the second chuck 742 for clamping the speed limiting disc 71.
When unreeling, the worker firstly loosens the puller bolt 2223, adjusts the position of the limiting rod 222 to enable the gap between the two limiting rods 222 to be over against the gap between the two extrusion rollers 001 of the extruder, and screws the puller bolt 2223 after the adjustment; then the first section of the profile is guided to pass through the gap between the two limiting rods 222 and extend into the gap between the two extrusion rollers 001, finally the extruder is started to start extrusion operation, and the extrusion rollers 001 drive the subsequent profile to continuously feed to the extruder.
When the feeding direction of the profile on the horizontal plane deviates, the profile drives the limiting rod 222 to move, the limiting rod 222 drives the passive deviation rectifying frame 221 to move, so that the deviation rectifying spring 2231 on one side of the length direction of the passive deviation rectifying frame 221 extends, the deviation rectifying spring 2231 on the other side shortens, and then the elastic force of the deviation rectifying spring 2231 drives the passive deviation rectifying frame 221 to restore to the original position. Meanwhile, the profile drives the passive deviation rectifying frame 221 to slide on the guide rod 1121 towards one end of the guide rod 1121, so that the passive deviation rectifying frame 221 triggers a photoelectric switch 2311, then the photoelectric switch 2311 starts a driving motor 2121, an output shaft of the driving motor 2121 rotates to drive a driving gear 2122 to rotate, the driving gear 2122 drives a driven gear 2123 to rotate through a chain 2124, further drives a driving shaft 2112 to rotate, and finally drives the driving deviation rectifying frame 211 to move in the direction opposite to the profile deviation direction until the feeding direction of the profile is corrected.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides an automatic trail unwinding device which characterized in that: comprises a frame (1), a deviation correcting mechanism (2) and an unreeling mechanism (3); the deviation rectifying mechanism (2) comprises an active deviation rectifying assembly (21) and a deviation detecting assembly (23), the active deviation rectifying assembly (21) comprises an active deviation rectifying frame (211) and an active driving piece (212) for driving the active deviation rectifying frame (211) to move, the active deviation rectifying frame (211) is arranged on the rack (1) in a sliding mode, the unreeling mechanism (3) is fixed on the active deviation rectifying sliding frame, and the active driving piece (212) is arranged on the rack (1); the deviation detection assembly (23) comprises a sensor (231), the sensor (231) is fixed on the rack (1), and the sensor (231) is electrically connected with the active driving piece (212) and controls the start and stop of the active driving piece (212); the deviation rectifying mechanism (2) comprises a passive deviation rectifying assembly (22), and the passive deviation rectifying assembly (22) comprises a passive deviation rectifying frame (221), a limiting rod (222) and a passive driving piece (223) for driving the limiting rod (222) to move; the passive deviation rectifying frame (221) is arranged on the ground, and the passive deviation rectifying frame (221) is positioned between the extrusion roller (001) and the active deviation rectifying frame (211); the limiting rods (222) are arranged on the passive deviation rectifying frame (221) in a sliding mode, at least two limiting rods (222) are arranged, the gap between the two limiting rods (222) is over against the gap between the two extrusion rollers (001) along the feeding direction of the profile, and the profile penetrates through the gap between the two limiting rods (222); the driven driving part (223) is a deviation rectifying spring (2231), and the deviation rectifying springs (2231) are arranged on two sides of the driven deviation rectifying frame (221) in the length direction; when the passive deviation rectifying frame (221) is located at the initial position, the lengths of the deviation rectifying springs (2231) are all equal to the original length of the deviation rectifying springs.
2. The automatic tracking unwinding device of claim 1, wherein: the unwinding mechanism (3) comprises an unwinding frame (31) and an unwinding disc (32), and the unwinding frame (31) is fixed on the active deviation rectifying frame (211); a first rotor (4) and a second rotor (5) are coaxially arranged on the unreeling frame (31) through a rotating frame, the unreeling disc (32) is arranged between the first rotor (4) and the second rotor (5) through the rotating frame, and the sectional material is coiled on the unreeling disc (32); the unwinding frame (31) is provided with an adjusting assembly (6) for adjusting the distance between the first rotor (4) and the second rotor (5) and a speed limiting assembly (7) for limiting the unwinding speed of the unwinding disc (32).
3. The automatic tracking unwinding device of claim 2, wherein: the adjusting assembly (6) comprises an internal thread sleeve (61), a rotating part (62) and a driving part (63) for driving the rotating part (62) to rotate and adjust, the internal thread sleeve (61) is fixedly arranged on the unreeling frame (31), the rotating part (62) is coaxially arranged in the internal thread sleeve (61) in a sliding mode and in threaded fit with the internal thread sleeve (61), and the rotating part (62) slides in the direction close to or far away from the second rotor (5); the first rotor (4) is rotatably provided on a side of the rotating portion (62) close to the reel.
4. The automatic tracking unwinding device of claim 3, wherein: the stop bolt (611) penetrates through the internal thread sleeve (61), and the end of the stop bolt (611) penetrates into the internal thread sleeve (61) and abuts against the surface of the rotating part (62).
5. The automatic tracking unwinding device of claim 2, wherein: the speed limiting assembly (7) comprises a speed limiting disc (71), a shaft sleeve (72), a speed limiting shaft (73) and a clamping structure (74), wherein the shaft sleeve (72) is fixed on the unwinding frame (31), and the axis of the shaft sleeve (72) is superposed with the axis of the internal thread sleeve (61); the speed-limiting shaft (73) penetrates through the shaft sleeve (72) and is in running fit with the speed-limiting shaft (73), the second rotor (5) is coaxially and fixedly connected with one end of the speed-limiting shaft (73), and the speed-limiting disc (71) is fixed on one end, far away from the second rotor (5), of the speed-limiting shaft (73); the clamping structure (74) clamps the speed limiting disc (71).
6. The automatic tracking unwinding device of claim 5, wherein: the clamping structure (74) comprises a first clamping head (741) and a second clamping head (742), the first clamping head (741) and the second clamping head (742) are arranged on the unwinding frame (31), the side faces, close to each other, of the first clamping head (741) and the second clamping head (742) abut against the two sides of the speed limiting disc (71) in the thickness direction, and an elastic adjusting piece (761) used for adjusting clamping force of the first clamping head (741) and the clamping force of the second clamping head (742) are further arranged on the unwinding frame (31).
7. The automatic tracking unwinding device of claim 6, wherein: an extension plate (76) is fixed on one side, close to the clamping structure (74), of the unreeling frame (31), the elastic adjusting piece (761) comprises a screw rod (7611), the screw rod (7611) penetrates through the extension plate (76) and is in threaded fit with the extension plate (76), and one end of the screw rod (7611) abuts against the first chuck (741).
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| CN202011561217.1A CN112722917B (en) | 2020-12-25 | 2020-12-25 | Automatic tracking unwinding device |
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| CN202011561217.1A CN112722917B (en) | 2020-12-25 | 2020-12-25 | Automatic tracking unwinding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113233236B (en) * | 2021-07-09 | 2021-11-26 | 山东隆源橡胶有限公司 | Rubber conveyer belt winding device |
| CN114162651B (en) * | 2022-02-15 | 2022-07-01 | 南通市上午家纺设计有限公司 | Textile feeding device with automatic deviation rectifying function and using method thereof |
| CN115972430B (en) * | 2023-01-06 | 2024-07-16 | 安徽合从新材料科技有限公司 | Granulator for rubber processing |
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