CN114714668A

CN114714668A - Roll up membrane fifty percent discount device

Info

Publication number: CN114714668A
Application number: CN202210427551.0A
Authority: CN
Inventors: 田超; 孟琼
Original assignee: Changzhou Kemei Intelligent Technology Co ltd
Current assignee: Changzhou Kemei Intelligent Technology Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-08

Abstract

The invention discloses a film roll folding device, which comprises a frame, wherein a discharging roller, a film roll changing mechanism, a storage mechanism, a crease extruding mechanism, a folding mechanism, a flattening mechanism and an adjustable film roll color code counting and positioning assembly are fixed on the frame, a film roll is discharged from the discharging roller and sequentially passes through the film roll changing mechanism, the storage mechanism, the crease extruding mechanism, the folding mechanism, the flattening mechanism and the adjustable film roll color code counting and positioning assembly, the invention solves the problem that the film roll is easy to deviate during folding, the crease extruding mechanism is arranged in front of the folding mechanism to extrude the film roll to generate creases and then guide the film roll by the creases, thereby realizing folding, preventing the film roll from deviating during folding and improving the forming effect of the film roll, meanwhile, a locking platform is formed on a compression roller of the crease extruding mechanism, and when the film roll is generated, the creases can be compressed to prevent the film roll from deforming, the crease contour is formed more obviously.

Description

Roll up membrane fifty percent discount device

Technical Field

The invention relates to the technical field of rolled film production, in particular to a rolled film folding device.

Background

In the food packaging production process, the roll film is folded, the folded roll film is sealed to form packaging bags, then products are placed in the packaging bags, and the number of the packaging bags is counted, so that automatic production is realized;

the existing film rolling device directly utilizes the support or the triangular guide block to guide and fold the rolled film in the folding process, the rolled film is pulled and folded, the film is easy to deviate after long-time operation, and the folded rolled film is asymmetric, so that the quality of edge sealing is influenced, and the packaging bag is not in accordance with the use requirement.

Disclosure of Invention

The invention aims to provide a roll film folding device to solve the problem that the roll film is easy to deviate when folded.

In order to solve the technical problems, the invention provides the following technical scheme: a film winding and folding device comprises a rack, wherein an unwinding roller, a film winding and changing mechanism, a storage mechanism, a crease extruding mechanism, a folding mechanism, a flattening mechanism and an adjustable film winding color code counting and positioning assembly are fixed on the rack;

the crease extruding mechanism comprises a first support, an internal bearing of the first support is connected with a compression roller and a forming roller which are distributed up and down, a compression table is formed on the compression roller, a forming groove is formed on the forming roller, and the compression table and the forming groove are matched with each other;

the folding mechanism comprises a second support, a rotating shaft is fixed in the second support, a folding forming wheel is fixed on one end of the rotating shaft, a folding pressing wheel is matched above the folding forming wheel, a mounting plate is fixed at the lower end of the second support, and the folding pressing wheel is fixed on the mounting plate and can rotate.

According to the technical scheme, the two sides of the pressing table on the pressing roller are formed with the locking tables, and the locking tables are attached to the forming roller.

According to the technical scheme, the folding wheel is internally provided with the groove, and the depth of the groove is deeper than the forming groove on the forming roller.

According to the technical scheme, the film rolling and roll changing mechanism comprises a base plate fixed on the frame, two supports are oppositely arranged on the base plate, guide rods are fixed between the supports, guide blocks are connected to the guide rods in a sliding mode, a handle connecting block is fixed to one end of each guide block, a handle is fixed to the upper end of each handle connecting block, a blade mounting block is fixed to one end of each handle connecting block, blades are fixed to the inside of each blade mounting block, backing plates are further fixed to the bottom plate below the blades, pressing plates capable of being lifted up and down are mounted on the bottom plate on the two sides of each backing plate, pressing plates are further mounted on the edges of the bottom plate, telescopic cylinders are connected to the lower ends of the pressing plates, and the telescopic cylinders are fixed to the lower ends of the bottom plate.

According to the technical scheme, storage mechanism is including fixing the guide roll in the frame and connecting the slide bar in the frame through the bearing, sliding connection has the slide on the slide bar, be fixed with the slider between the slide, bearing connection has many floating rolls on the slider, the top of floating roll still is connected with many fixed rolls through the bearing in the frame, the top of fixed roll still bearing connection has the guide roll in the frame, long waist hole has been seted up in the frame, the back of slider is connected with the counter weight, the counter weight passes long waist hole, can remove in long waist hole.

According to the technical scheme, the ratchet bar is fixed on the back face of the rack, the cylinder fixing plate is fixed at the upper end of the balance weight, the adjusting cylinder is fixed on the cylinder fixing plate, the extending end of the piston rod of the adjusting cylinder is connected with the rotating pawl, the rotating pawl assembly is fixed on the balance weight, and the locking and unlocking of the floating roller at any position are achieved by controlling the rotating pawl to be meshed with the ratchet bar.

According to the technical scheme, the leveling mechanism comprises a third support, an inner bearing of the third support is connected with a first leveling roller and a second leveling roller which are distributed adjacently, a through waist hole is formed in the upper end of the third support, the second leveling roller penetrates through the waist hole, a threaded hole is formed in the side wall of the waist hole and towards the outside of the third support, an adjusting screw is connected in the threaded hole, and springs are connected between the end portions of the first leveling roller and the second leveling roller.

According to the technical scheme, the adjustable film rolling color code counting and positioning assembly comprises a first mounting table and a second mounting table, wherein the second mounting table is fixed on the first mounting table;

the first mounting table is provided with a threaded hole and round holes distributed on two sides of the threaded hole, a vertical screw rod is connected in the threaded hole in a threaded manner, a vertical guide pillar is connected in the round hole in a sliding manner, the upper ends of the vertical screw rod and the vertical guide pillar are fixed with a groove plate, a guide wheel is mounted in the groove plate, a connecting plate is fixed at the outer end of the groove plate, a guide plate is fixed on the connecting plate and is positioned above the guide wheel, and a photoelectric sensor is fixed on the back surface of the guide plate;

the color code sensor mounting plate is characterized in that one end of the second mounting table is connected with a fixing plate through a waist-shaped hole, the side face of the fixing plate is also provided with a threaded hole and round holes distributed on two sides of the threaded hole, a transverse screw rod is connected with the threaded hole in a threaded manner, a transverse guide pillar is connected in the round holes in a sliding manner, color code sensor mounting plates are fixed at one ends of the transverse screw rod and the transverse guide pillar, and color code sensors are fixed on the color code sensor mounting plates.

According to the technical scheme, the first installation table and the second installation table are respectively in threaded connection with a vertical locking screw and a transverse locking screw, the vertical locking screw penetrates through the first installation table to be attached to the vertical guide column, and the transverse locking screw penetrates through the second installation table to be attached to the transverse guide column.

Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

(1) the crease extruding mechanism is arranged in front of the folding mechanism, the rolled film is extruded to generate creases, and then the rolled film is guided by the creases, so that the folding is realized, the rolled film is prevented from deviating during the folding, the forming effect of the rolled film is improved, meanwhile, the locking table is formed on the compression roller of the crease extruding mechanism, and the rolled film can be compressed to prevent the rolled film from deforming when the creases are generated on the rolled film, so that the crease contour forming is more obvious;

(2) the surface of the folded roll film is flattened by arranging the flattening mechanism, so that the forming quality of the packaging bag is improved, and meanwhile, the distance between the first flattening roller and the second flattening roller is controlled by utilizing the spring and the screw rod, so that the flattening mechanism can flatten the roll films with different thicknesses;

(3) the wrapping bag all is a plurality of when the filling together filling, and the roll membrane after the fifty percent discount just is intermittent type nature output like this, and the blowing of rolling up the membrane is at the uniform velocity blowing, consequently the roll membrane will pile up in a certain time, through setting up storage mechanism, utilize the floating roll along with the not hard up landing downwards of rolling up the membrane to make roll membrane receive the pressure of floating roll always, make roll membrane be in the tensioning state all the time, utilize the position of pawl and ratchet control floating roll simultaneously, thereby can lock the floating roll.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the film roll change mechanism of the present invention;

FIG. 3 is a schematic view of the front face of the magazine mechanism of the present invention;

FIG. 4 is a schematic view of a back locking arrangement of the magazine of the present invention;

FIG. 5 is a cross-sectional schematic view of the locking structure of the present invention;

FIG. 6 is a schematic view of the crease pressing mechanism of the present invention;

FIG. 7 is a schematic view of the fold back mechanism of the present invention;

FIG. 8 is a schematic view of the grading mechanism of the present invention;

FIG. 9 is a schematic view of an adjustable roll film color scale count positioning assembly according to the present invention;

in the figure: 1. a frame; 11. a long waist hole; 12. a ratchet bar; 2. a discharge roller; 3. a film winding and changing mechanism; 31. a base plate; 32. a support; 33. a guide bar; 34. a guide block; 35. a handle connecting block; 36. a blade mounting block; 37. a base plate; 38. pressing a plate; 39. a telescopic cylinder; 4. a material storage mechanism; 41. a slide bar; 42. a slide base; 43. a slider; 44. a floating roll; 45. a fixed roller; 46. a guide roller; 47. balancing weight; 471. a rotating pawl; 472. a cylinder fixing plate; 473. an adjusting cylinder; 5. a crease pressing mechanism; 51. a first bracket; 52. a forming roller; 521. forming a groove; 53. a compression roller; 531. pressing the table; 532. a locking table; 6. a folding mechanism; 61. a second bracket; 62. a rotating shaft; 63. folding the forming wheel; 64. mounting a plate; 65. folding the pinch roller; 7. a leveling mechanism; 71. a third support; 72. a first leveling roller; 73. a second smoothing roller; 74. a waist hole; 75. a spring; 76. adjusting the screw rod; 8. an adjustable film rolling color code counting and positioning component; 81. a first mounting table; 82. a vertical screw; 83. a vertical guide post; 84. a groove plate; 85. a guide wheel; 86. a connecting plate; 87. a guide plate; 88. a photosensor; 89. a vertical locking screw; 90. a second mounting table; 91. a fixing plate; 92. a transverse locking screw rod; 93. a transverse guide post; 94. a transverse screw; 95. a color code sensor mounting plate; 96. a color code sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1, the present invention provides the following technical solutions: a film roll folding device comprises a frame 1, wherein an unwinding roller 2, a film roll changing mechanism 3, a storage mechanism 4, a crease extruding mechanism 5, a folding mechanism 6, a flattening mechanism 7 and an adjustable film roll color code counting and positioning assembly 8 are fixed on the frame 1, a film roll is discharged from the unwinding roller 2 and sequentially passes through the film roll changing mechanism 3, the storage mechanism 4, the crease extruding mechanism 5, the folding mechanism 6, the flattening mechanism 7 and the adjustable film roll color code counting and positioning assembly 8, the film roll is discharged from the unwinding roller 2 and is introduced into the storage mechanism 4 through the film roll changing mechanism 3, the tail end film roll of the device is intermittently output, the unwinding roller 2 discharges at a constant speed, so that the film roll is stacked in the middle part, the excessive stacked film roll is tightened by the storage mechanism 4 to be in a tensioning state, then the film roll enters the extruding mechanism 5 to generate creases on the film roll, the rolled film enters a folding mechanism 6, the rolled film is folded along a crease, the folded rolled film is introduced into a flattening mechanism 7 and flattened in the flattening mechanism 7, and finally the rolled film enters an adjustable rolled film color code counting and positioning assembly 8, and a color code sensor is used for positioning a color code on the rolled film, so that the rolled film is output intermittently;

as shown in fig. 6, the fold pressing mechanism 5 includes a first bracket 51, the internal bearing of the first bracket 51 is connected with a press roller 53 and a forming roller 52 which are adjacently distributed up and down, a press table 531 is formed on the press roller 53, a forming groove 521 is formed on the forming roller 52, the press table 531 and the forming groove 521 are mutually matched, a fold is pressed on the rolled film by utilizing the press table 531 and the forming groove 521 to be matched, the fold can be carried out along the fold by taking the fold as a positioning reference, and the rolled film is prevented from deviating;

as shown in fig. 7, the folding mechanism 6 includes a second bracket 61, a rotating shaft 62 is fixed in the second bracket 61, a folding wheel 63 is fixed on one end of the rotating shaft 62, a folding pinch roller 65 is matched above the folding wheel 63, a mounting plate 64 is fixed at the lower end of the second bracket 61, the folding pinch roller 65 is fixed on the mounting plate 64 and can rotate, when a roll film is conveyed between the folding pinch roller 65 and the folding wheel 63, a fold line in the roll film can move along the folding pinch roller 65, under the alternating action of the folding pinch roller 65 and the folding wheel 63, the roll film can be folded along the fold line, the forming effect of the roll film is improved, the fold line can play a positioning and guiding role, and the roll film is prevented from deviating.

Locking tables 532 are formed on two sides of the pressing table 531 on the pressing roller 53, the locking tables 532 are attached to the forming roller 52, and the rolled film is fixed on the forming roller 52 by the locking tables 532, so that the rolled film is prevented from deforming in the creasing process, and the crease forming is more obvious.

The folding forming wheel 63 is internally provided with a groove, the depth of the groove is deeper than the forming groove 521 on the forming roller 52, the folding forming wheel 63 is provided with the groove, the depth of the groove is deeper than the forming groove 521, the roll film is input between the folding forming wheel 63 and the folding pressing wheel 65 along the crease, the deformation degree of the roll film is increased, the crease is used for guiding, the roll film is folded in half by taking the crease as a central axis, and the roll film is prevented from deviating in the folding process.

As shown in fig. 2, the film roll changing mechanism 3 includes a bottom plate 31 fixed on the frame 1, two supports 32 are fixed on the bottom plate 31, two opposite supports 32 are fixed on the bottom plate 31, a guide rod 33 is fixed between the supports 32, a guide block 34 is slidably connected on the guide rod 33, a handle connecting block 35 is fixed at one end of the guide block 34, a handle is fixed at the upper end of the handle connecting block 35, a blade mounting block 36 is fixed at one end of the handle connecting block 35, a blade is fixed inside the blade mounting block 36, a backing plate 37 is fixed on the bottom plate 31 below the blade, pressing plates 38 capable of lifting up and down are mounted on the bottom plate 31 at two sides of the backing plate 37, pressing plates 38 are mounted on the edge of the bottom plate 31, telescopic cylinders 39 are connected at the lower ends of the pressing plates 38, the telescopic cylinders 39 are fixed at the lower end of the bottom plate 31, the roll film passes through the space between the bottom plate 31 and the pressing plates 38, passes through the lower end of the guide rod 33 and is output from the other end of the bottom plate 31, and when needs change a roll, can shrink telescopic cylinder 39 down earlier, make clamp plate 38 will roll up the membrane and compress tightly on bottom plate 31, the slip handle makes the handle slide along guide bar 33 afterwards, and handle connecting block 35 is fixed with blade installation piece 36, just so can make the blade cut the roll membrane that compresses tightly, improves the quality of cut opening, conveniently rolls up the membrane and trades a roll and roll up the butt joint of membrane head.

As shown in fig. 3, the storing mechanism 4 includes a guide roller 46 fixed on the frame 1 and a slide bar 41 connected to the frame 1 through a bearing, the slide bar 41 is connected with a slide carriage 42 in a sliding manner, a slide block 43 is fixed between the slide carriages 42, a plurality of floating rollers 44 are connected to the slide block 43 in a bearing manner, a plurality of fixed rollers 45 are connected to the frame 1 through bearings above the floating rollers 44, the guide roller 46 is further connected to the frame 1 through bearings above the fixed rollers 45, the frame 1 is provided with a long waist hole 11, one side of the long waist hole 11 is fixed with a ratchet bar 12, the back of the slide block 43 is connected with a balance weight 47, the floating roller assembly passes through the long waist hole 11 and can move in the waist hole 11, a rolled film passes through the fixed rollers 45 and then passes through the floating rollers 44, the rolled film is rolled on the fixed rollers 45 and the guide roller 46 in a staggered manner, and is finally led out from the guide rollers 46, and the floating rollers 44 can slide up and down, the folded rolled film intermittently moves, the rolled film is discharged at a constant speed, so that more rolled film can be discharged from the storage mechanism, when the rolled film is excessively fed, the rolled film is not tensioned any more, the floating roller 44 can slide downwards along the sliding rod 41 along with the sliding block 43, namely the rolled film pulls the floating roller 44 which slides downwards, the more discharged rolled film is tensioned again, and the rolled film is always tensioned.

As shown in fig. 4 and 5, a ratchet 12 is fixed on the back of the machine frame 1, a cylinder fixing plate 472 is fixed on the upper end of the counterweight 47, an adjusting cylinder 473 is fixed on the cylinder fixing plate 472, a rotating pawl 471 is connected to the extending end of the piston rod of the adjusting cylinder 473, a rotating pawl assembly is fixed on the counterweight, the rotating pawl 471 is meshed with the ratchet 12, the locking and unlocking of the floating roller 44 at any position is realized by controlling the rotating pawl 471 to be meshed with the ratchet 12, the rotating pawl 471 is connected between the cylinder fixing plates 472 through a rotating shaft, when the position of the slider 43 needs to be locked, the rotating pawl 471 can be rotated by the adjusting cylinder 473 on the cylinder fixing plate 472, the rotating pawl 471 is meshed with the ratchet 12, so that the counterweight 47 is limited under the meshing of the rotating pawl 471, the counterweight 47 can not move downwards any more, when the slider 43 does not need to be locked, the adjustment cylinder 473 is contracted to push the rotating pawl 471 to rotate, so that the rotating pawl 471 is separated from the ratchet bar 12, and the slider 43 is slid downward.

As shown in fig. 8, the leveling mechanism 7 includes a third bracket 71, the third bracket 71 is internally and bearing-connected with a first leveling roller 72 and a second leveling roller 73 which are adjacently distributed, the upper end of the third bracket 71 is provided with a through waist hole 74, the second leveling roller 73 passes through the waist hole 74, the side wall of the waist hole 74 is provided with a threaded hole on the outer side of the third bracket 71, the threaded hole is internally connected with an adjusting screw 76, a spring 75 is connected between the end parts of the first leveling roller 72 and the second leveling roller 73, the folded roll film passes between the first smoothing roller 72 and the second smoothing roller 73, and under the pressing of the first smoothing roller 72 and the second smoothing roller 73, the surface of the rolled film is flattened, and meanwhile, the distance between the first leveling roller 72 and the second leveling roller 73 is controlled by the aid of the waist holes and the springs connected between the first leveling roller 72 and the second leveling roller 73, so that the distance between the rollers in the leveling mechanism 7 can be adjusted according to the thickness of the rolled film.

As shown in fig. 9, the adjustable film winding color scale counting and positioning assembly 8 includes a first mounting table 81 and a second mounting table 90, and the second mounting table 90 is fixed on the first mounting table 81;

a threaded hole and round holes distributed on two sides of the threaded hole are formed in the first mounting table 81, a vertical screw 82 is connected in the threaded hole in a threaded manner, a vertical guide post 83 is connected in the round hole in a sliding manner, a groove plate 84 is fixed at the upper ends of the vertical screw 82 and the vertical guide post 83, a guide wheel 85 is mounted in the groove plate 84, a connecting plate 86 is fixed at the outer end of the groove plate 84, a guide plate 87 is fixed on the connecting plate 86, the guide plate 87 is positioned above the guide wheel 85, a photoelectric sensor 88 is fixed at the back of the guide plate 87, the vertical screw 82 is rotated to enable the groove plate 84 on the vertical screw 82 to move up and down, and meanwhile, the guide plate 87 is connected to the connecting plate 86 through a waist hole, so that the distance between the guide plate 87 and the guide wheel 85 can be adjusted by utilizing the waist hole, and the height of a rolled film is consistent with the height of the guide plate;

one end of second mount table 90 is connected with fixed plate 91 through waist shape hole, threaded hole and the round hole of distribution in the screw hole both sides are also seted up to the side of fixed plate 91, threaded hole female connection has horizontal screw rod 94, sliding connection has horizontal guide pillar in the round hole, the one end of horizontal screw rod 94 and horizontal guide pillar all is fixed with color mark sensor mounting panel 95, fixed color mark sensor 96 on the color mark sensor mounting panel 95, adjust the position of color mark sensor 96 through rotatory horizontal screw rod 94, make color mark sensor 96 align with photoelectric sensor 88, accomplish color mark sensor 96 and the photoelectric calibration of feedback.

There are vertical locking screw 89 and horizontal locking screw 92 on first mount table 81 and the second mount table 90 respectively threaded connection, vertical locking screw 89 passes first mount table 81 and laminates with vertical guide post 83, horizontal locking screw 92 passes second mount table 90 and laminates with horizontal guide post 93, utilize vertical locking screw 89 and horizontal locking screw 92 to vertical guide post 83 and the locking of horizontal guide post 93 respectively, accomplish the fixed to chromatic mark sensor 96 and photoelectric sensor 88.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a roll up membrane fifty percent discount device which characterized in that: the film winding machine comprises a rack, wherein an unwinding roller, a film winding and unwinding mechanism, a storage mechanism, a crease extrusion mechanism, a folding mechanism, a flattening mechanism and an adjustable film winding color code counting and positioning assembly are fixed on the rack;

the crease extrusion mechanism comprises a first support, an internal bearing of the first support is connected with a compression roller and a forming roller which are distributed up and down, a compression table is formed on the compression roller, a forming groove is formed on the forming roller, and the compression table and the forming groove are matched with each other;

2. The roll film folding device according to claim 1, wherein: and locking platforms are formed on two sides of the pressing platform on the compression roller and are attached to the forming roller.

3. The roll film folding device according to claim 1, wherein: the folding type wheel is internally provided with a groove, and the depth of the groove is deeper than that of the forming groove on the forming roller.

4. The roll film folding device according to claim 1, wherein: roll up membrane roll change mechanism including fixing the bottom plate in the frame, be fixed with relatively on the bottom plate and be provided with two supports, be fixed with the guide bar between the support, sliding connection has the guide block on the guide bar, and the one end of guide block is fixed with the handle connecting block, and the upper end of handle connecting block is fixed with the handle, the one end of handle connecting block is fixed with blade installation piece, the inside of blade installation piece is fixed with the blade, the below of blade still is fixed with the backing plate on the bottom plate, the clamp plate of lifting about can be installed on the bottom plate to the both sides of backing plate, still install the clamp plate on the edge of bottom plate, the lower extreme of clamp plate all is connected with telescopic cylinder, telescopic cylinder fixes the lower extreme at the bottom plate.

5. The roll film folding device according to claim 1, wherein: storage mechanism is including fixing the guide roll in the frame and connecting the slide bar in the frame through the bearing, sliding connection has the slide on the slide bar, be fixed with the slider between the slide, bearing connection has many floating rollers on the slider, the top of floating roller still is connected with many fixed rollers through the bearing in the frame, the top of fixed roller still bearing connection has the guide roll in the frame, long waist hole has been seted up in the frame, the back of slider is connected with the counter weight, the counter weight passes long waist hole, can remove in long waist hole.

6. The roll film folding device according to claim 5, wherein: the back of the rack is fixed with a ratchet bar, the upper end of the balance weight is fixed with a cylinder fixing plate, an adjusting cylinder is fixed on the cylinder fixing plate, the extending end of a piston rod of the adjusting cylinder is connected with a rotating pawl, a rotating pawl assembly is fixed on the balance weight, and the locking and unlocking of the floating roller at any position are realized by controlling the rotating pawl to be meshed with the ratchet bar.

7. The roll film folding device according to claim 1, wherein: the leveling mechanism comprises a third support, an inner bearing of the third support is connected with a first leveling roller and a second leveling roller which are distributed adjacently, a through waist hole is formed in the upper end of the third support, the second leveling roller penetrates through the waist hole, a threaded hole is formed in the outer side of the third support on the side wall of the waist hole, an adjusting screw is connected in the threaded hole, and springs are connected between the end portions of the first leveling roller and the second leveling roller.

8. The roll film folding device according to claim 1, wherein: the adjustable film winding color code counting and positioning assembly comprises a first mounting table and a second mounting table, and the second mounting table is fixed on the first mounting table;

one end of the second mounting table is connected with a fixing plate through a waist-shaped hole, the side face of the fixing plate is also provided with a threaded hole and round holes distributed on two sides of the threaded hole, a transverse screw rod is connected with the thread in the threaded hole in a threaded mode, a transverse guide pillar is connected in the round holes in a sliding mode, color code sensor mounting plates are fixed to one ends of the transverse screw rod and one ends of the transverse guide pillars, and color code sensors are fixed to the color code sensor mounting plates.

9. The roll film folding apparatus according to claim 8, wherein: and the first mounting table and the second mounting table are respectively in threaded connection with a vertical locking screw and a transverse locking screw, the vertical locking screw penetrates through the first mounting table to be attached to the vertical guide post, and the transverse locking screw penetrates through the second mounting table to be attached to the transverse guide post.