An online cutting device for automobile window film

Abstract

The present invention belongs to the technical field of film production equipment, and in particular relates to an online slitting device for automobile window film, comprising a bracket, a feed shaft, a guide assembly, a slitting assembly, a reel, and a supporting seat. The guide assembly comprises two side plates arranged symmetrically in front and back, with guide rollers and a top roller arranged in an up-and-down staggered manner running through the two side plates in front and back, the guide rollers and the top roller being rotatably connected to the bracket, and telescopic rings being respectively installed between the two side plates and the bracket, with hollow telescopic portions being provided at the ends of the telescopic rings. Through the arrangement of the guide assembly, side plates are provided on the front and back sides of the film, and the side plates can be driven by the inflated telescopic rings to be squeezed toward the film. The two telescopic rings in front and back are in contact with each other and exert the same pressure on the film, so that the film passes uniformly in the center; and the abutment plates are pressed against the two ends of the roll film to be slit, automatically adapting to films of different widths.

Description

Technical Field

[0001] The present invention relates to the technical field of film production equipment, and in particular to an online slitting device for automobile window films. Background Art

[0002] Car films can be simply divided into two categories, one is car glass film, and the other is car color change film. When producing car films, they will go through processes such as base material preparation, film coating, drying and winding, slitting and rewinding to obtain standard size car films.

[0003] Patent application CN114516561A discloses a combined automotive protective film coating, slitting, and compounding device that can automatically replace winding rollers and unloading materials, reducing the workload of operators. The protective film can be conveniently cut through the slitting mechanism, and the protective film can be fixed to the winding roller through the slitting mechanism.

[0004] During the slitting process, the automotive film needs to be kept horizontal and centered. In the disclosed equipment, multiple smooth rollers are used to support the automotive film, and the feed roller and the winding roller synchronously tighten the two ends of the automotive film to ensure that the automotive film is centered and tensioned. However, there is no structure at the intermediate transmission position to limit the automotive film. The automotive film may deviate forward and backward when passing through the slitting assembly due to factors such as different winding tightness, tilted installation positions of the feed and winding paper rolls, uneven friction force between the rollers, and wear and tilt of the roller end shaft, affecting the dimensional accuracy during slitting. To this end, we propose an online slitting device for automotive window film to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that there is no limit during the slitting and transmission of automobile film, resulting in front and back deviation, and to propose an online slitting device for automobile window film.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An online slitting device for automobile window film comprises a bracket, a feeding shaft, a guide assembly, a slitting assembly, a winding shaft and a bearing seat, the guide assembly comprises two side plates arranged symmetrically in front and back, a guide roller and a top roller arranged in an upper and lower staggered manner are provided between the two side plates, the guide roller and the top roller are rotatably connected to the bracket, a telescopic ring is respectively installed between the two side plates and the bracket, a hollow telescopic part is provided at the end of the telescopic ring, the length of the telescopic part is controlled by air pressure, and the telescopic part can drive the side plates to move forward and backward, two vertical air holes are provided on the upper part of the bracket that are respectively connected to the two telescopic rings, the two air holes are connected in series through a connecting hole provided in the middle of the top roller, and a stop plate overlapped at the front and rear ends of the film roll to be slit is installed on the left part of the side plate; slitting assembly: The cam is engaged with the spline head and the spline groove is engaged with the spline head, and the cam is engaged with the spline groove of the spline head, and the cam is engaged with the spline groove of the spline head.

[0008] The bracket arranges the feed shaft and the take-up shaft on the left and right sides through the bearing seat, and the roll film to be slit is installed on the outside of the feed shaft, and the slit films are respectively wound on the take-up paper drums on multiple take-up shafts. A guide assembly and a slitting assembly are installed in the middle of the bracket, and a rotating roller for supporting and reversing the slit film is installed between the brackets. The front end of the top roller is connected to the air supply pump through a rotary sealing joint, and then the two telescopic rings are supplied with air through the top roller, so that it drives the side plates to move so that the pressure plates overlap the front and rear ends of the film roll to be slit. During the film conveying process, the side plates limit the film by the width of the film roll to ensure that the slitting assembly accurately cuts the film; the slitting assembly can be squeezed on the upper right side of the pressure roller through multiple slitting rings, forming an obtuse angle with the film, so that the slitting ring can more easily cut into the film to achieve stable slitting; when the fork carries the feed shaft and the take-up shaft, the locking ring with the internal opening facing upward can drive the feed shaft and the take-up shaft to rotate through the spline head, and the spline head is clamped by a manually operable swinging pin to prevent it from detaching during rotation.

[0009] Preferably, an eccentric roller and a sliding roller are installed between the guide roller and the top roller, the eccentric roller is located above the left side of the sliding roller, the left side of the side plate is provided with an external cut hole that cooperates with the eccentric roller, and the side plate and the lower part of the bracket are respectively provided with an inclined sliding opening for the sliding roller to move up and down;

[0010] The rotation of the eccentric roller can intermittently push the film passing through the left side of the eccentric roller to the left. During the pushing, the sliding roller can be driven to move up intermittently through the tensioned film. The sliding roller will reset under the action of its own weight and the weight of the counterweight. The counterweight also limits the sliding roller forward and backward. During the up and down movement of the sliding roller, the film is cyclically tensioned and relaxed, which makes it easier to push the film back to its original position than a continuously tensioned film.

[0011] Preferably, adapters rotatably connected to the bracket are installed at the front and rear ends of the top roller respectively, a connecting portion communicating with the connecting hole is opened in the middle of the adapter, and an annular array of air outlet holes is opened on the circumferential side wall of the top roller, and the air outlet holes and the connecting hole are communicated with each other;

[0012] The top roller can rotate, and the friction resistance between the film and the top roller is small due to rolling contact, and the connecting part includes an annular groove located in the middle of the circumferential outer wall of the adapter, and the lower end of the air hole is rotatably connected to the annular groove position of the connecting part. During rotation, the adapter can ensure stable air supply to the telescopic ring, and the circumferential side wall of the top roller can eject air through the air hole, thereby reducing the friction resistance between the film above the top roller and the side wall of the top roller, and further making it easier to push the film back to its original position.

[0013] Preferably, a swing groove is provided on the left side of the side plate, a pin shaft cooperating with the abutment plate is installed on the side plate at the lower right position of the swing groove, the lower side wall and the right side wall of the swing groove limit the abutment plate, and an outwardly protruding clamping block is installed on the abutment plate facing the swing groove, a vertical first clamping groove is provided on the upper part of the swing groove, and a horizontally arranged second clamping groove is provided on the left part of the swing groove;

[0014] The push plate swings to the upper dead point position and the block is embedded in the first slot. At this time, the push plate is separated from the film roll to be slit, which is convenient for replacing a new film roll to be slit. The push plate swings to the lower dead point position and the block is embedded in the second slot. At this time, the push plate is pressed and contacted with the front and rear ends of the film roll to be slit, which can stably limit the position of the push plate, ensure that the position of the push plate is stable when the film roll to be slit rotates, and is more convenient to use.

[0015] Preferably, a guide portion is provided at the top of the bracket, and the guide portion is arranged in an inclined direction with the top left and the bottom right. A light hole plate is installed at the top of the guide portion, and the middle part of the adjustment rod is threadedly installed with self-locking nuts located on the upper and lower sides of the light hole plate;

[0016] The distance from any point on the midline of the guide part to the center of the pressure roller is not equal, which allows the connecting rod to slide tiltedly while ensuring that the distance between the slitting ring and the pressure roller continues to shorten when the connecting rod moves downward, and the unit length of the adjustment rod movement corresponding to the unit length distance between the slitting ring and the pressure roller can be increased. Compared with the method of adjusting the height of the connecting rod vertically up and down, the distance between the slitting ring and the pressure roller can be finely adjusted and stably locked.

[0017] Preferably, the front and rear ends of the connecting rod are detachably mounted with end brackets by bolts, a screw hole is provided at the bent position of the end bracket, and the bottom end of the adjusting rod is rotatably mounted in the middle of the screw hole;

[0018] The connecting rod and the adjusting rod are detachable and can be fixed with bolts, connected with snaps or locked with hinges, so as to ensure that after the adjusting rod is worn, it can be replaced and maintained separately, reducing the difficulty of subsequent care.

[0019] Preferably, a side hole seat is rotatably mounted in the middle of the slitting ring, the center of the center hole of the side hole seat is located on the left side of the center of the slitting ring, and a threaded hole running horizontally left and right is opened in the middle of the side hole seat, a locking bolt is installed in the threaded hole, and the end of the locking bolt is in pressure contact with the outer wall of the connecting rod;

[0020] An installation groove that cooperates with the slitting ring is opened on the outer wall of the circumference of the offset hole seat. The slitting ring can only rotate in the installation groove. The offset hole seat can be rotated to slightly adjust the distance between the slitting ring and the pressure roller, and ensure that slitting rings of different diameters can be installed and used on the connecting rod at the same time without affecting the slitting stability, thereby improving the applicability of the slitting ring.

[0021] Preferably, a U-shaped groove is provided in the middle of the inner side wall of the fork frame, and the fork frame is rotatably connected to the locking ring through the U-shaped groove. The locking ring is squeezed and positioned by a fixing block with an arc portion. The fork frame is installed with a fixing block at the upper opening of the U-shaped groove, and the bottom end of the fixing block is provided with an arc portion that cooperates with the outer wall of the locking ring.

[0022] The diameter of the semicircular position of the inner wall of the U-shaped groove is consistent with the diameter of the locking ring, which limits the locking ring in the front and rear directions and cooperates with the tightening of the fixing block to ensure the stability of the rotation position of the locking ring.

[0023] Preferably, the fork frame is provided with a notch at the top end of the right side wall, a screw is installed in the middle of the fixing block, and a gasket is provided between the screw head and the left and right outer walls of the fork frame;

[0024] The notch is connected to the U-shaped groove, and the screw is slidably installed in the middle of the notch. The fork frame is detachably connected to the fixing block by the screw at the notch position. It can be replaced separately to avoid wasting undamaged components and facilitate subsequent maintenance.

[0025] Preferably, a rotating shaft is provided at the upper end of the pin, and the fork frame is located at the upper part of the U-shaped groove and is provided with a receiving groove for the pin to swing around the rotating shaft. A spring piece with a downward convex middle portion is installed at the upper part of the pin at the installation gap position, and the left end of the spring piece is fixedly connected to the upper inner wall of the receiving groove;

[0026] The rotating shaft is connected to the fork frame at the upper end of the accommodating groove through rotation, and the pin swings in the accommodating groove. There is an installation gap between the middle part of the pin and the rotating shaft, and a spring piece with a downward protrusion in the middle is installed between the pin and the upper inner wall of the accommodating groove. The spring piece can ensure that it is unlocked when pressed from top to bottom and locks the position of the pin when pressed from bottom to top, ensuring convenient disassembly and assembly and stable transmission during use.

[0027] Compared with the existing technology, the advantages of this online slitting device for automobile window film are:

[0028] 1. Through the setting of the guide component, side plates are set on the front and back sides of the membrane. The side plates can be driven by the inflated telescopic ring to squeeze toward the membrane. The two telescopic rings in front and behind are connected to each other and the pressure on the membrane is consistent, so that the membrane passes through the center consistently; and the abutment plate is pressed on both ends of the roll film to be slit, automatically adapting to membranes of different widths. The continuously entering gas will be discharged from the air outlet position and blown toward the membrane at the top roller position, reducing the friction resistance between the membrane and the top roller. The rotation of the eccentric roller cooperates with the up and down movement of the sliding roller to intermittently relax the membrane. Compared with the state of being taut all the time, the intermittently relaxed membrane with low friction resistance is more easily pushed to the center by the side plate when it deviates, achieving more efficient and smoother centering limit;

[0029] 2. Through the setting of the slitting assembly, the slitting ring is installed on the upper right part of the pressure roller. Compared with the arrangement directly above, an obtuse angle can be formed between the slitting ring and the film, thereby increasing the service life of the slitting ring and extending the maintenance cycle. The slitting ring needs to be regularly sharpened and trimmed. After grinding, the diameter is reduced, so the distance between the slitting ring and the pressure roller needs to be adjusted. The guide part moves the slitting ring downward to get closer to the pressure roller and at the same time moves it slightly to the right away from the pressure roller. Compared with the method of adjusting the height of the connecting rod 440 vertically up and down, the slitting ring can be quickly moved close to the pressure roller by a large movement of the adjusting rod. Combined with the eccentrically arranged biased hole seat, the distance adjustment is more refined, and the adjustment accuracy and control flexibility are improved.

[0030] 3. Through the setting of the bearing seat, the opening of the fork frame and the locking ring, the spline shaft can be directly inserted into the locking ring from top to bottom, realizing efficient coaxial installation and drive rotation. The locking ring is detachably clamped by the fixing block, and the locking ring can be quickly disassembled and replaced after wear; after installation, it can be elastically compressed by the pin and the spring clip. Because of the downward convex shape of the spring clip, it can be pressed down to make the plunger detach from the spline shaft for quick disassembly, and the spline shaft cannot detach from the bottom up when it is not unlocked, realizing stable meshing transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a left side schematic diagram of the present invention;

[0032] Figure 2 It is an enlarged structural diagram of the internal structure of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the guide assembly of the present invention;

[0034] Figure 4 A partial cutaway schematic diagram of the guide assembly of the present invention;

[0035] Figure 5 This is a schematic diagram of the direction of the automotive film of the present invention;

[0036] Figure 6 This is a schematic diagram of the lower part of the guide assembly of the present invention;

[0037] Figure 7 is a schematic cross-sectional view of the slitting assembly of the present invention;

[0038] Figure 8 Schematic diagram of the splitting assembly of the present invention;

[0039] Figure 9 This is a schematic diagram of the disassembly of the bearing seat of the present invention;

[0040] Figure 10 Schematic diagram of the disassembly of the locking ring in the bearing seat of the present invention.

[0041] In the figure: 1, bracket; 11, roller; 12, air hole; 2, feeding shaft; 3, guide assembly; 310, guide roller; 320, eccentric roller; 330, slide roller; 331, counterweight; 340, top roller; 341, air outlet; 342, connecting hole; 343, adapter; 344, connecting part; 350, side plate; 351, telescopic ring; 3511, telescopic part; 352, external cut hole; 353, oblique sliding mouth; 360, abutment plate; 361, block; 362, pin; 363, first slot; 364, second slot; 365, swing slot; 4, Slitting assembly; 410, guide part; 420, adjusting rod; 421, end frame; 422, aperture plate; 430, slitting ring; 431, offset hole seat; 432, locking piece; 440, connecting rod; 450, pressure roller; 5, reeling shaft; 6, bearing seat; 610, fork frame; 611, U-shaped groove; 612, notch; 620, locking ring; 621, driving shaft; 622, pin; 623, spring piece; 624, receiving groove; 625, key portion; 626, installation gap; 627, rotating shaft; 630, fixing block; 631, arc surface portion; 7, spline head. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Example 1

[0044] Reference Figure 1 、 3 and 5, an online slitting device for automobile window film, comprising a bracket 1, a feed shaft 2, a guide assembly 3, a slitting assembly 4, a reel 5 and a bearing seat 6, wherein the bracket 1 sets the feed shaft 2 and the reel 5 on the left and right sides through the bearing seat 6, the film to be slit is wound on the outside of the feed shaft 2, and the slit films are respectively wound on multiple reel 5, a guide assembly 3 and a slitting assembly 4 are installed in the middle of the bracket 1, the film passes through the guide assembly 3 and the slitting assembly 4 successively, and the guide assembly 3 and the slitting assembly 4 slit the film in the center, and a roller 11 is installed between the brackets 1 to support and reverse the slit film, the guide assembly 3: comprising Two side plates 350 are symmetrically arranged front and back, and a guide roller 310 and a top roller 340 are arranged in an upper and lower staggered arrangement between the two side plates 350. The rear ends of the guide roller 310 and the top roller 340 are connected to the rotation drive device. The guide roller 310 and the top roller 340 are rotatably connected to the bracket 1. A telescopic ring 351 is respectively installed between the two side plates 350 and the bracket 1. A hollow telescopic part 3511 is set at the end of the telescopic ring 351. The length of the telescopic part 3511 is controlled by air pressure. The telescopic part 3511 can drive the side plates 350 to move forward and backward. The upper part of the bracket 1 is provided with two The vertical air holes 12 are connected in series through the connecting hole 342 opened in the middle of the top roller 340. The front end of the top roller 340 is connected to the air supply pump through a rotary sealing joint. The left part of the side plate 350 is equipped with a plate 360 ​​overlapping the front and rear ends of the film roll to be slit; the slitting assembly 4: includes a connecting rod 440 equipped with multiple slitting rings 430, the slitting rings 430 are rotatably connected to the connecting rod 440, and the connecting rod 440 is installed on the upper right of the pressure roller 450 so as to be adjustable up and down through the adjusting rod 420. The rear end of the pressure roller 450 is connected to the rotary drive device; the supporting seat 6: includes two fork frames 610 corresponding to the front and rear ends. The fork frame 610 opens upward, and a locking ring 620 with an opening upward is rotatably installed in the middle of the fork frame 610. Spline heads 7 are respectively provided at the front and rear ends of the feeding shaft 2 and the winding shaft 5. The spline head 7 is overlapped in the middle of the locking ring 620 through the opening. A pin 622 that is engaged with the spline head 7 is installed on the upper part of the locking ring 620. A drive shaft 621 is installed at the end of the locking ring 620. The drive shaft 621 is connected to a rotation drive device. Equally spaced convex key portions 625 are installed on the inner wall of the locking ring 620. The convex key portions 625 engage with the spline grooves of the spline head 7, and the drive shaft 621 drives the spline head 7 to rotate through the locking ring 620.

[0045] The bracket 1 sets the feeding shaft 2 and the winding shaft 5 on the left and right sides through the bearing seat 6. The roll film to be slit is installed on the outside of the feeding shaft 2. The slit films are respectively wound on the winding paper drums on the multiple winding shafts 5. The middle part of the bracket 1 is equipped with a guide assembly 3 and a slitting assembly 4. A rotating roller 11 for supporting and reversing the slit film is installed between the brackets 1. The front end of the top roller 340 is connected to the air supply pump through a rotary sealing joint, and then the top roller 340 is used to supply air to the two telescopic rings 351, so that it drives the side plates 350 to move so that the abutment plates 360 overlap the front and rear ends of the film roll to be slit. During the feeding process, the side plate 350 limits the film by the width of the film roll, ensuring that the slitting component 4 accurately slits the film; the slitting component 4 can be squeezed on the upper right side of the pressure roller 450 through multiple slitting rings 430, forming an obtuse angle with the film, so that the slitting ring 430 can more easily cut into the film to achieve stable slitting; when the fork frame 610 supports the feeding shaft 2 and the winding shaft 5, the locking ring 620 with the internal opening facing upward can drive the feeding shaft 2 and the winding shaft 5 to rotate through the spline head 7, and the spline head 7 is clamped by the manually operable swing pin 622 to prevent it from detaching during rotation.

[0046] Example 2

[0047] Reference Figure 1-6 , an online slitting device for automobile window film, including a bracket 1, a feeding shaft 2, a guide assembly 3, a slitting assembly 4, a winding shaft 5 and a supporting seat 6. The bracket 1 sets the feeding shaft 2 and the winding shaft 5 on the left and right sides through the supporting seat 6. The film to be slit is wound on the outside of the feeding shaft 2, and the slit films are respectively wound on multiple winding shafts 5. The middle part of the bracket 1 is equipped with a guide assembly 3 and a slitting assembly 4. The film passes through the guide assembly 3 and the slitting assembly 4 in turn. The guide assembly 3 and the slitting assembly 4 slit the film in the center. A rotating roller 11 for supporting and reversing the slit film is installed between the brackets 1. The guide assembly 3: includes two side plates 350 arranged symmetrically front and back. A guide roller 310 and a top roller arranged in an upper and lower staggered manner are arranged between the two side plates 350. 340, the rear ends of the guide roller 310 and the top roller 340 are connected to the rotation driving device, and the guide roller 310 and the top roller 340 are rotatably connected to the bracket 1. Retractable rings 351 are respectively installed between the two side plates 350 and the bracket 1. A hollow retractable part 3511 is set at the end of the retractable ring 351. The length of the retractable part 3511 is controlled by air pressure. The retractable part 3511 can drive the side plates 350 to move back and forth. Two vertical air holes 12 are respectively connected to the two retractable rings 351 on the upper part of the bracket 1. The two air holes 12 are connected in series through the connecting hole 342 opened in the middle of the top roller 340. The front end of the top roller 340 is connected to the air supply pump through a rotary sealing joint. The left part of the side plate 350 is installed with a support plate 360 ​​overlapping the front and rear ends of the film roll to be slit.

[0048] Specifically, an eccentric roller 320 and a sliding roller 330 are installed between the guide roller 310 and the top roller 340. The eccentric roller 320 is located on the upper left of the sliding roller 330. An external cut hole 352 that cooperates with the eccentric roller 320 is opened on the left side of the side plate 350. The end of the eccentric roller 320 is connected to the rotating drive device through a flange. The side plate 350 and the lower part of the bracket 1 are respectively provided with inclined sliding openings 353 for the sliding roller 330 to move up and down. Counterweight blocks 331 are installed at the front and rear ends of the sliding roller 330.

[0049] Furthermore, adapters 343 rotatably connected to the bracket 1 are respectively installed at the front and rear ends of the top roller 340. A connecting portion 344 connected to the connecting hole 342 is provided in the middle of the adapter 343. The connecting portion 344 includes an annular groove located in the middle of the circumferential outer wall of the adapter 343. The lower end of the air hole 12 is rotatably connected to the annular groove position of the connecting portion 344. An annular array of air outlet holes 341 is provided on the circumferential side wall of the top roller 340, and the air outlet holes 341 and the connecting hole 342 are connected to each other.

[0050] The cam 362 is pressed against the top of the support rail 360 and the cam 363 is pressed against the support rail 360, and the cam 363 is pressed against the top of the support rail 360.

[0051] The eccentric roller 320 rotates to intermittently push the film passing the left side of the eccentric roller 320 to the left, and the sliding roller 330 can be driven to move up intermittently by the tensioned film during the pushing. The sliding roller 330 will reset under the action of its own weight and the weight of the counterweight block 331. The counterweight block 331 simultaneously limits the sliding roller 330 front and back. During the downward movement of the sliding roller 330, part of the gravity will be converted into its downward movement power, so that the extrusion force on the film when the sliding roller 330 moves downward will be reduced, resulting in intermittent relaxation. During the up and down movement of the sliding roller 330, the film is cyclically tensioned and relaxed, and is easier to be pushed to reset than a continuously tensioned film. The top roller 340 can rotate, and the friction resistance between the film and the top roller 340 in rolling contact is small, and the connecting portion 344 includes an annular groove located in the middle of the outer wall of the adapter 343. The position of the annular groove of the lower end of the air hole 12 and the connecting portion 344 The rotation conduction connection can ensure stable air supply to the telescopic ring 351 through the adapter 343 during rotation, and the circumferential side wall of the top roller 340 can eject air through the air holes 341, thereby forming a narrow air layer between the film above the top roller 340 and the side wall of the top roller 340, reducing the friction resistance between the two, further making it easier to push the film back to its original position. The support plate 360 ​​swings to the upper dead center position and the block 361 is embedded in the first clamping groove 363. At this time, the support plate 360 ​​is separated from the film roll to be slit, making it convenient to replace the new film roll to be slit. The support plate 360 ​​swings to the lower dead center position and the block 361 is embedded in the second clamping groove 364. At this time, the support plate 360 ​​is pressed and contacted with the front and rear ends of the film roll to be slit, which can stably limit the position of the support plate 360, ensure the stable position of the support plate 360 ​​when the film roll to be slit rotates, and prevent direct squeezing of the single layer of film from causing bending and bulging, making it more convenient to use.

[0052] Example 3

[0053] Reference Figure 5 、 7 And 8, an online slitting device for automobile window film, including a bracket 1, a feeding shaft 2, a guide assembly 3, a slitting assembly 4, a winding shaft 5 and a supporting seat 6. The bracket 1 arranges the feeding shaft 2 and the winding shaft 5 on the left and right sides through the supporting seat 6. The film to be slit is wound around the outside of the feeding shaft 2, and the slit films are respectively wound around multiple winding shafts 5. The middle part of the bracket 1 is equipped with a guide assembly 3 and a slitting assembly 4. The film passes through the guide assembly 3 and the slitting assembly 4 in turn. The guide assembly 3 and the slitting assembly 4 slit the film in the center. A rotating roller 11 for supporting and reversing the slit film is installed between the brackets 1. The slitting assembly 4: includes a connecting rod 440 equipped with multiple slitting rings 430, the slitting ring 430 is rotatably connected to the connecting rod 440, and the connecting rod 440 can be adjusted up and down by the adjusting rod 420 and is installed on the upper right side of the pressing roller 450. The rear end of the pressing roller 450 is connected to the rotating drive device.

[0054] Specifically, a guide portion 410 is provided at the top of the bracket 1, and the guide portion 410 is arranged in an inclined direction with the top left and the bottom right. The distance from any point on the midline position of the guide portion 410 to the center of the pressing roller 450 is not equal. A light hole plate 422 is installed at the top of the guide portion 410, and a light hole is provided in the middle of the light hole plate 422 for the free movement of the adjusting rod 420. The inclination direction of the connecting rod 440 and the inclination direction of the light hole are consistent with the inclination direction of the guide portion 410. The middle of the adjusting rod 420 is threaded with self-locking nuts located on the upper and lower sides of the light hole plate 422.

[0055] It is worth noting that the front and rear ends of the connecting rod 440 are detachably mounted with end frames 421 by bolts, a screw hole is provided at the bending position of the end frame 421, and the bottom end of the adjusting rod 420 is rotatably mounted in the middle of the screw hole.

[0056] It is worth mentioning that a side hole seat 431 is rotatably installed in the middle of the slitting ring 430, and a mounting groove that cooperates with the slitting ring 430 is opened on the outer wall of the circumference of the side hole seat 431. The slitting ring 430 can only be rotated in the mounting groove. The center of the middle hole of the side hole seat 431 is located on the left side of the center of the slitting ring 430. A threaded hole running horizontally left and right is opened in the middle of the side hole seat 431. A locking bolt is installed in the threaded hole, and the end of the locking bolt is pressed and contacted with the outer wall of the connecting rod 440.

[0057] In order to improve the applicability of the slitting ring 430, the slitting ring 430 is installed at the upper right part of the pressure roller 450. Compared with the arrangement directly above, an obtuse angle can be formed with the film, so that the film is pressed down and tightened at the position of the slitting ring 430. When the pressure between the slitting ring 430 and the pressure roller 450 is low, it can also be smoothly slit. The reduced pressure between the slitting ring 430 and the pressure roller 450 can reduce the extrusion wear deformation of the end edge position of the slitting ring 430, and extend the maintenance cycle. The distance from any point on the midline position of the guide part 410 to the center of the pressure roller 450 is not equal, so that the connecting rod 440 can be tilted and slid while ensuring that the distance between the slitting ring 430 and the pressure roller 450 is continuously shortened when the connecting rod 440 moves downward, and the adjustment rod 42 corresponding to the unit length distance between the slitting ring 430 and the pressure roller 450 can be increased. 0 unit length of movement, compared with the vertical adjustment method of the upper and lower vertical height of the connecting rod 440, the distance between the slitting ring 430 and the pressure roller 450 can be finely adjusted and stably locked, the connecting rod 440 and the adjusting rod 420 are detachable and can be fixed with bolts, or can be connected by snaps or hinges, to ensure that after the adjusting rod 420 is worn, it can be replaced and maintained separately, reducing the difficulty of later care, and a mounting groove that cooperates with the slitting ring 430 is provided on the outer wall of the circumference of the offset hole seat 431, and the slitting ring 430 can only be rotated in the mounting groove, and the offset hole seat 431 can be rotated to slightly adjust the distance between the slitting ring 430 and the pressure roller 450, and ensure that slitting rings 430 of different diameters can be installed and used on the connecting rod 440 at the same time without affecting the slitting stability, thereby improving the applicability of the slitting ring 430.

[0058] Example 4

[0059] Reference Figure 5 、 9and 10, an online slitting device for automobile window film, comprising a bracket 1, a feed shaft 2, a guide assembly 3, a slitting assembly 4, a reel 5 and a bearing seat 6, wherein the bracket 1 sets the feed shaft 2 and the reel 5 on the left and right sides through the bearing seat 6, the film to be slit is wound on the outside of the feed shaft 2, and the slit films are respectively wound on multiple reel 5, a guide assembly 3 and a slitting assembly 4 are installed in the middle of the bracket 1, and the film passes through the guide assembly 3 and the slitting assembly 4 in turn, and the guide assembly 3 and the slitting assembly 4 slit the film in the center, and a roller 11 for supporting and reversing the slit film is installed between the brackets 1, and the bearing seat 6 includes two corresponding front and rear parts. A fork frame 610, the fork frame 610 opens upward, and a locking ring 620 with an opening upward is rotatably installed in the middle of the fork frame 610. Spline heads 7 are respectively provided at the front and rear ends of the feeding shaft 2 and the winding shaft 5. The spline head 7 is overlapped in the middle of the locking ring 620 through the opening. A pin 622 that is engaged with the spline head 7 is installed on the upper part of the locking ring 620. A driving shaft 621 is installed at the end of the locking ring 620, and the driving shaft 621 is connected to a rotating drive device. Equally spaced convex key portions 625 are installed on the inner wall of the locking ring 620. The convex key portions 625 engage with the spline grooves of the spline head 7, and the driving shaft 621 drives the spline head 7 to rotate through the locking ring 620.

[0060] Specifically, a U-shaped groove 611 is provided in the middle of the inner wall of the fork frame 610, and the diameter of the semicircular position of the inner wall of the U-shaped groove 611 is consistent with the diameter of the locking ring 620. A fixing block 630 is installed at the upper opening position of the U-shaped groove 611 of the fork frame 610, and the bottom end of the fixing block 630 is provided with an arc surface 631 that cooperates with the outer wall of the locking ring 620.

[0061] Furthermore, the fork frame 610 has a notch 612 at the top of the right side wall, the notch 612 is connected to the U-shaped groove 611, a screw is installed in the middle of the fixed block 630, the screw is slidably installed in the middle of the notch 612, and a gasket is provided between the screw head and the left and right outer walls of the fork frame 610.

[0062] Furthermore, a rotating shaft 627 is provided at the upper end of the pin 622, and the fork frame 610 is located at the upper part of the U-shaped groove 611 and is provided with a receiving groove 624 for the pin 622 to swing around the rotating shaft 627. The rotating shaft 627 and the fork frame 610 at the upper end of the receiving groove 624 are rotatably connected, and an installation gap 626 is left between the middle part of the pin 622 and the rotating shaft 627. A spring piece 623 with a downward protrusion in the middle is installed on the upper part of the pin 622 at the position of the installation gap 626, and the left end of the spring piece 623 is fixedly connected to the upper inner wall of the receiving groove 624.

[0063] In order to ensure quick disassembly and assembly and stable transmission, the diameter of the semicircular position of the inner wall of the U-shaped groove 611 is consistent with the diameter of the locking ring 620, and the locking ring 620 is limited in the front and rear directions. The fixing block 630 is pressed to ensure the stability of the rotation position of the locking ring 620. The notch 612 is connected to the U-shaped groove 611, and the screw is slidably installed in the middle of the notch 612. The fork frame 610 is detachably connected to the fixing block 630 through the screw at the notch 612 position. It can be replaced separately to avoid wasting undamaged components and facilitate subsequent maintenance. The rotating shaft 627 is rotatably connected to the fork frame 610 at the upper end of the accommodating groove 624, and the pin 622 swings in the accommodating groove 624. The middle of the pin 622 is connected to the rotating shaft. An installation gap 626 is left between 627, and a spring piece 623 with a downward convex center is installed between the pin 622 and the upper inner wall of the accommodating groove 624. When the pin 622 is pressed down, the two ends of the spring piece 623 will be more easily bent toward the middle position on the basis of the concave bending shape. When the pin 622 is subjected to an upward extrusion force, the two ends of the spring piece 623 will be pulled away to generate a large reaction elastic force. At the same time, the pin 622 will move closer to the middle, and the clamping and squeezing will lock the position of the spline shaft 7. The spring piece 623 can ensure that the pin 622 is unlocked by pressure from top to bottom, and the pin 622 is locked by pressure from bottom to top, thereby achieving convenient disassembly and assembly and stable transmission during use.

[0064] The automatic equipment involved in the embodiment adopts the molded products provided by the manufacturer, and its supporting control system, electromagnetic switch and circuit pipeline can also be provided by the manufacturer. In addition, the power supply module, circuit and electronic components and control module involved in the present invention are all existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to the internal structure and method.

[0065] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An online slitting device for automobile window film, comprising a bracket (1), a guide assembly (3), a slitting assembly (4) and a bearing seat (6), wherein the bracket (1) sets a feeding shaft (2) and a winding shaft (5) at the left and right ends through the bearing seat (6), and a guide assembly (3) and a slitting assembly (4) for centered slitting of the film are installed in the middle of the bracket (1), characterized in that: The guide assembly (3) comprises two front and rear side plates (350), wherein a guide roller (310) and a top roller (340) arranged vertically extend between the two side plates (350), and a telescopic ring (351) is respectively installed between the two side plates (350) and the bracket (1). The two telescopic rings (351) are connected in series via a connecting hole (342) in the middle of the top roller (340). A front-to-back symmetrical abutment plate (360) is provided on the left side of the side plate (350); A slitting assembly (4): comprising a connecting rod (440) on which a plurality of slitting rings (430) are mounted, wherein the connecting rod (440) is mounted on the upper right side of the pressing roller (450) so as to be movable up and down via an adjusting rod (420); The supporting seat (6) comprises a fork frame (610) correspondingly arranged at the front and rear, a locking ring (620) with an upward opening rotatably mounted in the middle of the fork frame (610), the spline heads (7) at the ends of the feeding shaft (2) and the winding shaft (5) are clamped in the locking ring (620) through a pin (622), and the locking ring (620 drives the spline heads (7) to rotate; The side plate (350) is located between the guide roller (310) and the top roller (340), and is provided with an eccentric roller (320) and a sliding roller (330). The left portion of the side plate (350) is provided with an external cut hole (352). The lower portion of the side plate (350) and the bracket (1) are respectively provided with an oblique sliding opening (353). Adapters (343) are installed at both ends of the top roller (340) and are rotatably connected to the bracket (1) through a connecting portion (344). An air outlet hole (341) is provided on the circumferential side wall of the top roller (340) and is connected to the connecting hole (342). The side plate (350) is provided with a swinging groove (365) for limiting the position of the abutting plate (360); a clamping block (361) is installed on the side of the abutting plate (360) facing the swinging groove (365); and a first clamping groove (363) and a second clamping groove (364) are respectively provided on the upper portion and the left portion of the swinging groove (365).

2. The online slitting device for automobile window film according to claim 1, characterized in that: The top end of the bracket (1) is provided with a guide portion (410) for the connecting rod (440) to slide obliquely, the top end of the guide portion (410) is mounted with a light hole plate (422), and the adjusting rod (420) is provided with self-locking nuts located on the upper and lower sides of the light hole plate (422).

3. The online slitting device for automobile window film according to claim 2, characterized in that: The connecting rod (440) and the adjusting rod (420) are connected via a detachable end frame (421).

4. The online slitting device for automobile window film according to claim 3, characterized in that: A biased hole seat (431) is rotatably mounted between the slitting ring (430) and the connecting rod (440), and a locking bolt is mounted in the middle of the biased hole seat (431) through a horizontal threaded hole.

5. The online slitting device for automobile window film according to claim 1, characterized in that: The fork frame (610) is rotatably connected to the locking ring (620) through the U-shaped groove (611), and the locking ring (620) is squeezed and positioned by a fixing block (630) with an arc surface (631).

6. The online slitting device for automobile window film according to claim 5, characterized in that: The fork frame (610) is detachably connected to a fixing block (630) at the notch portion (612) via a screw.

7. The online slitting device for automobile window film according to claim 6, characterized in that: The pin (622) swings in the receiving groove (624), and a spring piece (623) with a downward protrusion in the middle is installed between the pin (622) and the upper inner wall of the receiving groove (624).

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