CN108001748B - Film pulling mechanism of film cutting equipment - Google Patents
Film pulling mechanism of film cutting equipment Download PDFInfo
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- CN108001748B CN108001748B CN201711422875.0A CN201711422875A CN108001748B CN 108001748 B CN108001748 B CN 108001748B CN 201711422875 A CN201711422875 A CN 201711422875A CN 108001748 B CN108001748 B CN 108001748B
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- film
- tensioning
- clamping
- film cutting
- clamping seat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/14—Feeding webs from rolls by grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/20—Cutting beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B33/00—Packaging articles by applying removable, e.g. strippable, coatings
- B65B33/02—Packaging small articles, e.g. spare parts for machines or engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Unwinding Webs (AREA)
Abstract
The utility model provides a film pulling mechanism of film cutting equipment, and belongs to the technical field of machining equipment. It has solved the problem that current film needs manual pull-out when cutting. This film pulling mechanism of cutting membrane equipment, it includes the frame to cut membrane equipment, cut membrane platform and roller, pulling mechanism includes two clamping seat, these two clamping seat are located the both sides of cutting the membrane platform respectively, and clamp seat all along cutting the vertical sliding connection of membrane platform in the frame, the frame all is equipped with two sets of tensioning components in the both sides of cutting the membrane platform, tensioning component all includes two along vertical gliding take-up pulley and tensioning spring, be equipped with the clamp splice on the clamping seat, still be equipped with the pushing part that can separate two take-up pulleys that keep away from the roller on the clamping seat, and clamp seat can pass through between two take-up pulleys of separation when two take-up pulleys separate. The film pulling mechanism of the film cutting equipment can automatically pull out the film smoothly, and improves the film cutting quality.
Description
Technical Field
The utility model belongs to the technical field of machining equipment, and relates to a film pulling mechanism of film cutting equipment.
Background
When electronic products such as mobile phones and the like are packaged, flexible films are usually required to be adhered to a display screen, so that the display screen is protected in the packaging, transportation and selling processes, scratch is avoided, for example, chinese patent application No. 201320095641.0 discloses a pressure-controlled automatic film laminating machine which comprises an electric control device, a turnover plate platform, a turnover device, a moving platform, a linear displacement device and a pressurizing device, wherein the turnover plate platform and the moving platform are used for respectively providing carriers for bearing the display screen and a film, the turnover device and the linear displacement device are matched with each other in a driving manner so as to simulate the applying and pressing process in the film laminating process, the pressurizing device is used for providing pressure, the automatic film laminating is realized, the film which is not cut is usually large in size and wound into a cylinder shape, therefore, the film is required to be cut into films with the corresponding size of the mobile phones, then the films are adhered to the display screen of the mobile phones, and at present, the cutting of the film is usually cut manually through a knife switch, so that the efficiency is low.
Disclosure of Invention
The utility model aims at solving the problems in the prior art and provides a film pulling mechanism of film cutting equipment.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a film pulling mechanism of film cutting equipment, film cutting equipment includes frame, the level is fixed in the frame cut membrane platform and be used for the roller of location film reel, cut membrane platform and be the rectangle, the roller level is located one side of cutting the membrane platform, its characterized in that, pulling mechanism includes two clamping seat, and should two clamping seat are located the both sides of cutting the membrane platform respectively, and clamping seat all along cutting the vertical sliding connection of membrane platform in the frame, be equipped with the power spare that can drive clamping seat reciprocating motion in the frame, the frame all is equipped with two sets of tensioning components in the both sides of cutting the membrane platform, tensioning component all is located the one end that is close to the roller, and two tensioning components of same side along vertical arrangement, tensioning component all includes two along vertical gliding take-up pulley and two tensioning springs of effect on two take-up pulleys respectively, and two take-up pulley have the trend of leaning on and pressing from each other tight film border under two tensioning spring's effect, be equipped with two on the clamping seat and can press from both sides tight piece with the film border part clamp between two tensioning component when clamping seat is located, be equipped with the clamping seat that can press from both sides tight take-up pulley portion between two take-up pulley, the take-up pulley can be kept away from each other through the two take-up pulley when pressing from each other when pressing from both sides tight seat and separating.
The film winding drum sleeve is set to be located on the roll shaft, two groups of tensioning components on two sides of the film cutting platform are respectively penetrated at two edges after one end of the film is pulled out, specifically, the film edge penetrates between the two opposite tensioning wheels, the two tensioning wheels can clamp the film under the action of the tensioning spring, the film edge part between the two groups of tensioning components can be tightened, the clamping seat is located between the two tensioning components and can clamp the part, then the power piece drives the clamping seat to move away from the roll shaft, the pushing piece can push away the pair of tensioning wheels far away from the roll shaft, the two tensioning wheels are separated relatively, the clamping seat can clamp the film to penetrate through the diameters of the two tensioning wheels, the clamping seat penetrates through the tensioning wheels after the two separation to clamp the film again, therefore, in the moving process of the clamping seat, the film can be tensioned to be in a tight state, the film can be covered on the film cutting platform smoothly, after the film is cut, the clamping seat is reset to the position between the two tensioning components, and the phenomenon that the film edge part between the two tensioning components is clamped after the film is pulled out is stretched is more smooth is avoided.
In the film pulling mechanism of the film cutting equipment, the tensioning assembly further comprises two clamping rods, the two clamping rods are all in sliding connection with the frame along the vertical direction, the end parts of the two clamping rods are opposite, one ends of the two clamping rods, which are opposite, are fixedly connected with U-shaped connecting frames, the two tensioning wheels are respectively connected in the two connecting frames through pin shafts in a rotating mode, the two tensioning springs are respectively sleeved on the two clamping rods, the upper ends of the tensioning springs act on the frame, and the lower ends of the tensioning springs act on the clamping rods. The two opposite tensioning rods are arranged coaxially, so that the two tensioning wheels can stably clamp the film.
In the film pulling mechanism of the film cutting equipment, two ends of the pin shaft are sleeved with conical damping sheets with elasticity, the inner edges of the damping sheets are propped against the inner side face of the connecting frame, the outer edges of the damping sheets are wrapped with wrapping edges made of rubber materials, the wrapping edges are propped against the end face of the tensioning wheel, and the wheel face of the tensioning wheel is fixedly connected with a rubber layer. The rubber layer and the film generate certain friction force, so that the film can drive the tensioning wheel to rotate when being pulled out, the damping piece is elastic and is tensioned between the roller and the connecting frame, the wrapping edge of the damping piece can generate friction resistance to the rotation of the roller, and the film can be in a tight state after being pulled out, so that the film is smoothly covered on the film cutting platform, and the film cutting quality is improved.
In the film pulling mechanism of the film cutting equipment, the pushing piece comprises two long pushing plates, the two pushing plates are horizontally and fixedly connected to the clamping seat, the two pushing plates are longitudinally arranged in the film cutting platform in the length direction of the pushing plates and distributed up and down, one ends of the pushing plates, far away from the roll shafts, are relatively close to each other and obliquely bent, pushing posts are vertically arranged on two tensioning rods, far away from the roll shafts, shaft sleeves are sleeved on the pushing posts in a rotating mode, and when the clamping seat is far away from the roll shafts, the pushing plates can push the shaft sleeves and enable the two tensioning wheels to be separated. When the clamping seat moves towards the direction away from the roll shaft, one end of the pushing plate which is inclined downwards can act on the shaft sleeve, and the shaft sleeve can roll to one horizontal end along one inclined end of the pushing plate, so that the two tensioning wheels are separated, when the shaft sleeve is separated from the pushing plate, the tensioning wheels can clamp the film again under the action of the tensioning springs, and the structure ensures that the separation of the two tensioning wheels does not need an additional power source, reduces cost and is more stable.
In the film pulling mechanism of the film cutting equipment, the clamping seat is U-shaped, the notch of the clamping seat faces the film cutting platform, the electromagnetic valves are fixedly connected to the upper side face and the lower side face of the clamping seat, the valve rods of the two electromagnetic valves extend into the clamping seat, the two clamping blocks are fixedly connected to the valve rod ends of the two electromagnetic valves respectively, the two sides of the film cutting platform are fixedly connected with the movable seat in a sliding manner, the clamping seat is connected to the movable seat in a sliding manner in the transverse direction of the film cutting platform, and when the movable seat moves to the position between the two tensioning assemblies, the clamping seat can move transversely and is buckled on the edge of the film. The clamp splice is controlled through the solenoid valve, and the solenoid valve control two clamp splice separation after the film is cut, can detain on the film border when pressing from both sides tight seat and reset to between two tensioning assembly, and the film border of tightening promptly can be located between two clamp splice.
In the film pulling mechanism of the film cutting equipment, the clamping blocks are made of rubber materials, the clamping blocks are long-strip-shaped, the length direction of the clamping blocks is set along the longitudinal direction of the film cutting platform, a plurality of strip-shaped protrusions are arranged on the opposite side surfaces of the clamping blocks, the strip-shaped protrusions are arranged along the length direction of the clamping blocks, the strip-shaped protrusions on the clamping blocks are opposite one to one, and the cross sections of the strip-shaped protrusions are arc-shaped. When two clamp splice press from both sides tightly, the protruding mutual butt of relative bar, then deformation under the clamping force, the arcwall face can warp into the plane and press from both sides tight film, consequently produces great clamping force to the film, avoids appearing droing in the pulling out the in-process.
In the film pulling mechanism of the film cutting equipment, the upper side surface of the movable seat is provided with the mounting groove, two sliding shafts are fixedly connected in the mounting groove along the transverse direction, two support columns are vertically and fixedly connected on the lower side surface of the clamping seat, the lower ends of the support columns are fixedly connected with sliding sleeves, the two sliding sleeves are respectively sleeved on the two sliding shafts in a sliding manner, the sliding shafts are also sleeved with reset springs, one ends of the reset springs act on the groove wall of the mounting groove, the other ends of the reset springs act on the end surfaces of the sliding sleeves, and the clamping seat can be close to the film cutting platform and buckled on the edges of the film under the action of the reset springs. When the clamping seat is reset between the two tensioning assemblies, the reset spring can enable the clamping seat to move close to the membrane cutting platform, so that the clamping seat is fastened on the edge of the membrane.
In the film pulling mechanism of the film cutting equipment, the frame is fixedly connected with the avoidance guide rods at two sides of the film cutting platform, the avoidance guide rods are longitudinally arranged and located at the outer side of the tensioning wheel far away from the roll shaft, one ends of the avoidance guide rods far away from the roll shaft are hinged with the avoidance push rods, reset torsion springs are further arranged on the avoidance guide rods, one ends of the reset torsion springs act on the avoidance guide rods, the other ends of the reset torsion springs act on the avoidance push rods, the avoidance push rods incline towards one side of the film cutting platform, the rollers are all rotationally connected to the lower side surface of the clamping seat, the rollers can pass through the inner sides of the avoidance guide rods and push the avoidance push rods outwards when the clamping seat moves far away from the roll shaft, the rollers can roll to the outer sides of the avoidance guide rods along the avoidance push rods when the clamping seat moves close to the roll, and the clamping seat can be buckled on the edge of the film under the action of the reset torsion springs when the rollers are separated from the guide rods. When the clamping seat clamps the film and moves towards the direction away from the roll shaft, the roller can pass through from the inner side of the avoidance guide rod, then the roller can outwards push the inclined avoidance push rod, so that transverse movement cannot occur to the clamping seat, when the clamping seat resets and moves, the inclined avoidance push rod is positioned on a travel path of the roller, so that the roller can roll along the avoidance push rod to the avoidance guide rod, at the moment, the clamping seat can compress the reset spring to move away from the film cutting platform, namely, the clamping seat can move from the outer side of the avoidance guide rod, so that the tensioning assembly is bypassed, when the clamping seat moves between the two tensioning assemblies, the roller is separated from the avoidance guide rod, moves close to the film cutting platform under the action of the reset spring, and is buckled on the edge of the tensioned film, and the structure also enables movement of the clamping seat to be free of an additional power source, so that the cost is reduced, and the operation is more stable.
In the film pulling mechanism of the film cutting equipment, the two sides of the film cutting platform are fixedly connected with two sliding rails in the longitudinal direction, the lower side face of the movable seat is fixedly connected with two sliding blocks, the two sliding blocks are respectively and slidably connected with the two sliding rails, the side part of one sliding rail is fixedly connected with a driving rack in the longitudinal direction, the power piece comprises a power motor fixedly connected with the movable seat, a motor shaft of the power motor is vertically downward, a driving gear is fixedly connected with a motor shaft of the power motor, and the driving gear is meshed with the driving rack. The power motor drives the transmission gear to rotate, and the transmission gear is meshed with the transmission rack fixed on the frame, so that the movable seat can longitudinally reciprocate.
Compared with the prior art, the film pulling mechanism of the film cutting equipment has the following advantages:
1. because in the clamping seat moving process, the film can be tensioned and in a tight state, the film can be smoothly covered on the film cutting platform, and the film cutting quality is improved.
2. Because two groups of tensioning assemblies are arranged, the edge part of the film between the two tensioning assemblies is in a tight state after the film is pulled out, so that the clamping seat is clamped more smoothly, and the phenomenon that the film is uneven and cannot be clamped is avoided.
3. Because the two tensioning wheels are separated through the pushing plate, the clamping seat avoids the movement through avoiding the pushing rod and the avoiding guide rod, no additional power source is needed, so that the cost is reduced, and the operation is more stable.
Drawings
Fig. 1 is a schematic perspective view of the film cutting apparatus.
Fig. 2 is an enlarged view of the structure at a in fig. 1.
Fig. 3 is a partial structural cross-sectional view of the tensioning assembly.
Fig. 4 is a partial perspective view of the drawing mechanism.
Fig. 5 is a partial structural plan view of the present film cutting apparatus.
In the figure, 1, a rack; 11. cutting a film platform; 12. a roll shaft; 13. a slide rail; 2. a clamping seat; 21. clamping blocks; 211. a bar-shaped protrusion; 22. an electromagnetic valve; 23. a push plate; 24. a support column; 25. a sliding sleeve; 26. a roller; 3. a power member; 31. a power motor; 32. a drive gear; 33. a drive rack; 4. a tensioning assembly; 41. a tensioning wheel; 411. a rubber layer; 42. tensioning a spring; 43. a clamping rod; 44. a connecting frame; 45. a damping sheet; 451. wrapping edges; 46. pushing the column; 461. a shaft sleeve; 5. a movable seat; 51. a mounting groove; 52. a sliding shaft; 53. a return spring; 54. a slide block; 6. avoiding the guide rod; 61. avoiding the push rod.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 and 2, a film pulling mechanism of film cutting equipment, film cutting equipment includes frame 1, film cutting platform 11 horizontally fixed on frame 1 and roller 12 for positioning film reel, film cutting platform 11 is the rectangle, roller 12 level is located one side of film cutting platform 11, pulling mechanism includes two clamping bases 2, these two clamping bases 2 are located the both sides of film cutting platform 11 respectively, and clamping bases 2 all along cutting film cutting platform 11 longitudinal sliding connection on frame 1, be equipped with the power piece 3 that can drive clamping bases 2 reciprocating motion on frame 1, frame 1 all is equipped with two sets of tensioning assemblies 4 in the both sides of film cutting platform 11, tensioning assemblies 4 all are located the one end that is close to roller 12, and two tensioning assemblies 4 of same side are along vertical arrangement, tensioning assemblies 4 all include two take turns 41 along vertical sliding and two tensioning springs 42 that are used in respectively on two take turns 41, two take turns 41 have the trend of leaning against and clamping the film border under the effect of two tensioning springs 42, be equipped with two when clamping bases 2 are located two tensioning assemblies 4 and can press from both sides tight piece 21 when two tensioning assemblies can separate the two take turns from each other by two clamping bases 2 from each other, can keep away from two tensioning assemblies 2 when the two take turns can separate from each other by two tensioning assemblies 2 from the clamping base 2. The film winding drum sleeve is set to be located on the roll shaft 12, two groups of tensioning components 4 on two sides of the film cutting platform 11 are respectively penetrated at two edges after one end of the film is pulled out, specifically, the film edge penetrates between two opposite tensioning wheels 41, the two tensioning wheels 41 can clamp the film under the action of the tensioning spring 42, the film edge part between the two groups of tensioning components 4 can be tightened, the clamping seat 2 is located between the two tensioning components 4 and can clamp the part, then the power piece 3 drives the clamping seat 2 to move towards the direction far away from the roll shaft 12, the pushing piece can push a pair of tensioning wheels 41 far away from the roll shaft 12, the two tensioning wheels 41 are separated relatively, the clamping seat 2 can clamp the film to penetrate through the diameters of the two tensioning wheels 41, the two separated tensioning wheels 41 penetrate through the clamping seat 2 again to clamp the film, therefore, in the moving process of the clamping seat 2, the film can be tensioned and in a tight state, the film can be covered on the film cutting platform 11 smoothly, the film cutting quality is improved, after the film is cut, the film is reset to the position between the two tensioning components 4, the tensioning components 4 are arranged, and the phenomenon that the film is not smoothly pulled out is avoided due to the fact that the two tensioning components are clamped by the two tensioning components are clamped.
Referring to fig. 3 and 4, the tensioning assembly 4 further includes two clamping rods 43, the two clamping rods 43 are slidably connected to the frame 1 along a vertical direction, ends of the two clamping rods 43 are opposite, one ends of the two opposite clamping rods 43 are fixedly connected with a U-shaped connecting frame 44, the two tensioning wheels 41 are respectively connected in the two connecting frames 44 through pin shafts in a rotating manner, the two tensioning springs 42 are respectively sleeved on the two clamping rods 43, the upper ends of the tensioning springs 42 act on the frame 1, the lower ends of the tensioning springs 42 act on the clamping rods 43, and the two opposite tensioning rods are coaxially arranged, so that the two tensioning wheels 41 can stably clamp a film. Both ends of the pin shaft are sleeved with conical damping sheets 45 with elasticity, the inner edges of the damping sheets 45 are propped against the inner side face of the connecting frame 44, the outer edges are wrapped with wrapping edges 451 made of rubber materials, the wrapping edges 451 are propped against the end face of the tensioning wheel 41, the wheel face of the tensioning wheel 41 is fixedly connected with a rubber layer 411, the rubber layer 411 and the film generate certain friction force, so that the tensioning wheel 41 can be driven to rotate when the film is pulled out, the damping sheets 45 are elastic and are tensioned between the roller 26 and the connecting frame 44, friction resistance can be generated on rotation of the roller 26 by the wrapping edges 451, and therefore the film can be in a tight state after being pulled out, and is flatly covered on the film cutting platform 11, and the film cutting quality is improved. The pushing piece comprises two long pushing plates 23, the two pushing plates 23 are horizontally and fixedly connected to the clamping seat 2, the longitudinal arrangement of the film cutting platform 11 is carried out in the length direction of the two pushing plates 23, the two pushing plates 23 are distributed up and down, one ends of the two pushing plates 23, which are far away from the roll shaft 12, are relatively close to each other and obliquely bent, pushing posts 46 are vertically arranged on the two tensioning rods, which are far away from the roll shaft 12, the pushing plates 23 are respectively and rotatably sleeved with a shaft sleeve 461, when the clamping seat 2 moves away from the roll shaft 12, the shaft sleeves 461 can be pushed by the pushing plates 23 and enable the two tensioning wheels 41 to be separated, when the clamping seat 2 moves away from the roll shaft 12, one end, which is inclined downwards, of the pushing plates 23 can act on the shaft sleeves 461, and one end, which is inclined along the pushing plates 23, of the shaft sleeves 461 can roll to one end which is horizontal, so that the two wheels 41 are separated, and when the shaft sleeves 461 are separated from the pushing plates, the films can be clamped again under the action of the tensioning springs 42. The clamping seat 2 is U-shaped, the notch of the clamping seat 2 faces the film cutting platform 11, the electromagnetic valves 22 are fixedly connected to the upper side face and the lower side face of the clamping seat 2, valve rods of the two electromagnetic valves 22 extend into the clamping seat 2, the two clamping blocks 21 are fixedly connected to valve rod ends of the two electromagnetic valves 22 respectively, the machine frame 1 is longitudinally and slidably connected with the movable seat 5 on two sides of the film cutting platform 11, the clamping seat 2 is transversely and slidably connected with the movable seat 5 along the film cutting platform 11, the clamping seat 2 can transversely move and buckle on the film edge when the movable seat 5 moves to the position between the two tensioning assemblies 4 in the direction of the roll shaft 12, the clamping blocks 21 are controlled by the electromagnetic valves 22, the electromagnetic valves 22 control the two clamping blocks 21 to separate after the film is cut, and the clamping seat 2 can buckle on the film edge when the clamping seat 2 resets to the position between the two tensioning assemblies 4, namely the tensioned film edge can be positioned between the two clamping blocks 21. The clamp splice 21 all adopts rubber materials to make, the clamp splice 21 all is rectangular form, and the longitudinal direction of clamp splice 21 sets up along cutting membrane platform 11, all have a plurality of bar protruding 211 on the opposite side of two clamp splices 21, this a plurality of bar protruding 211 are arranged along clamp splice 21 longitudinal direction, bar protruding 211 on two clamp splices 21 are relative one by one, and the transversal arc of bar protruding 211 is personally submitted, when two clamp splices 21 press from both sides tightly, relative bar protruding 211 supports each other and leans on, then deformation under the clamping force, the arcwall face can warp into the plane and press from both sides tight film, consequently produce great clamping force to the film, avoid drawing out the in-process and appear droing.
As shown in fig. 5, the upper side of the movable seat 5 is provided with a mounting groove 51, two sliding shafts 52 are fixedly connected in the mounting groove 51 along the transverse direction, two supporting columns 24 are vertically and fixedly connected on the lower side of the clamping seat 2, sliding sleeves 25 are fixedly connected at the lower ends of the two supporting columns 24, the two sliding sleeves 25 are respectively sleeved on the two sliding shafts 52 in a sliding manner, a return spring 53 is further sleeved on the sliding shafts 52, one end of the return spring 53 acts on the wall of the mounting groove 51, the other end acts on the end face of the sliding sleeve 25, the clamping seat 2 can be close to the film cutting platform 11 and buckled on the film edge under the action of the return spring 53, and when the clamping seat 2 is reset between the two tensioning assemblies 4, the return spring 53 can enable the clamping seat 2 to move close to the film cutting platform 11, so that the clamping seat 2 is buckled on the film edge. The frame 1 is fixedly connected with the avoidance guide rods 6 on two sides of the film cutting platform 11, the avoidance guide rods 6 are longitudinally arranged and are positioned on the outer side of the tensioning wheel 41 far away from the roll shaft 12, one end of each avoidance guide rod 6 far away from the roll shaft 12 is hinged with the avoidance push rod 61, a reset torsion spring is further arranged on each avoidance guide rod 6, one end of each reset torsion spring acts on each avoidance guide rod 6, the other end acts on each avoidance push rod 61 inclines towards one side of the film cutting platform 11 under the action of each reset torsion spring, the rollers 26 are rotationally connected to the lower side surface of the clamping seat 2, when the clamping seat 2 moves far away from the roll shaft 12, the rollers 26 can pass through the inner side of each avoidance guide rod 6 and push the corresponding avoidance push rod 61 outwards, when the clamping seat 2 moves close to the roll shaft 12, the rollers 26 can roll to the outer side of the corresponding avoidance guide rods 6 along the corresponding avoidance push rods 61, and when the rollers 26 are separated from the avoidance guide rods 6, the clamping seat 2 can be buckled on the film edge under the action of the reset springs 53, when the clamping seat 2 clamps a film and moves in the direction away from the roll shaft 12, the roller 26 can pass through the inner side of the avoidance guide rod 6, then the roller 26 can push the inclined avoidance push rod 61 outwards, so that the clamping seat 2 cannot transversely move, when the clamping seat 2 is reset and moves, the inclined avoidance push rod 61 is positioned on the running path of the roller 26, so that the roller 26 can roll to the avoidance guide rod 6 along the avoidance push rod 61, at the moment, the clamping seat 2 can compress the reset spring 53 to move away from the film cutting platform 11, namely, the clamping seat can move from the outer side of the avoidance guide rod 6 so as to bypass the tensioning assembly 4, when the clamping seat 2 moves between the two tensioning assemblies 4, the roller 26 is separated from the avoidance guide rod 6 and moves close to the film cutting platform 11 under the action of the reset spring 53 so as to be buckled on the edge of the tensioned film, this structure also makes the movement of the clamping seat 2 unnecessary with an additional power source, thereby reducing the cost and making the operation more stable. The frame 1 has all linked firmly two slide rails 13 along vertical in the both sides of cutting membrane platform 11, have linked firmly two sliders 54 on the downside of moving seat 5, this two sliders 54 sliding connection respectively on two slide rails 13, the lateral part of one of them slide rail 13 has linked firmly drive rack 33 along vertical, power piece 3 is including the motor 31 who links firmly on moving seat 5, this motor shaft of motor 31 is vertical down, and link firmly drive gear 32 on motor shaft of motor 31, drive gear 32 meshes with drive rack 33, motor 31 drives the drive gear and rotates, the drive gear meshes with the drive rack that fixes on frame 1, consequently, moving seat 5 can follow vertical reciprocating motion.
Claims (8)
1. The film pulling mechanism of the film cutting equipment comprises a frame (1), a film cutting platform (11) horizontally fixed on the frame (1) and a roll shaft (12) for positioning a film winding drum, wherein the film cutting platform (11) is rectangular, the roll shaft (12) is horizontally positioned at one side of the film cutting platform (11), the film cutting equipment is characterized in that the pulling mechanism comprises two clamping seats (2), the two clamping seats (2) are respectively positioned at two sides of the film cutting platform (11), the clamping seats (2) are longitudinally and slidably connected on the frame (1) along the film cutting platform (11), a power piece (3) capable of driving the clamping seats (2) to reciprocate is arranged on the frame (1), the frame (1) is provided with two groups of tensioning assemblies (4) at two sides of the film cutting platform (11), the tensioning assemblies (4) are respectively positioned at one end close to the roll shaft (12), the two tensioning assemblies (4) at the same side are longitudinally arranged, the tensioning assemblies (4) respectively comprise two tensioning wheels (41) which slide along the vertical direction and the two tensioning wheels (41) respectively act against the two tensioning wheels (41) and have a trend of tensioning the two tensioning wheels (42) which act against the two tensioning wheels (41), the clamping seat (2) is provided with two clamping blocks (21) which can clamp the edge part of the film between the two tensioning assemblies (4) when the clamping seat (2) is positioned between the two tensioning assemblies (4), the clamping seat (2) is also provided with pushing pieces which can separate the two tensioning wheels (41) far away from the roll shaft (12), and the clamping seat (2) can pass through the space between the two separated tensioning wheels (41) when the two tensioning wheels (41) are separated; the machine frame (1) is provided with a movable seat (5) on two sides of the film cutting platform (11) in a sliding manner, the clamping seat (2) is connected to the movable seat (5) in a sliding manner along the transverse direction of the film cutting platform (11), and the clamping seat (2) can move transversely and buckle on the edge of the film when the movable seat (5) moves to the position between the two tensioning assemblies (4) along the direction of the roll shaft (12).
2. Film pulling mechanism of film cutting equipment according to claim 1, characterized in that the tensioning assembly (4) further comprises two clamping rods (43), the two clamping rods (43) are all connected to the frame (1) in a sliding manner along the vertical direction, the ends of the two clamping rods (43) are opposite, one ends of the two clamping rods (43) opposite are all fixedly connected with a U-shaped connecting frame (44), the two tensioning wheels (41) are respectively connected in the two connecting frames (44) in a rotating manner through pin shafts, the two tensioning springs (42) are respectively sleeved on the two clamping rods (43), the upper ends of the tensioning springs (42) act on the frame (1), and the lower ends of the tensioning springs act on the clamping rods (43).
3. Film pulling-out mechanism of film cutting equipment according to claim 2, characterized in that both ends of the pin shaft are respectively sleeved with a conical damping piece (45), the inner edge of the damping piece (45) is propped against the inner side surface of the connecting frame (44), the outer edge is respectively wrapped with a wrapping edge (451) made of rubber material, the wrapping edge (451) is propped against the end surface of the tensioning wheel (41), and the wheel surface of the tensioning wheel (41) is fixedly connected with a rubber layer (411).
4. A film pulling mechanism of a film cutting device according to claim 3, wherein the pushing member comprises two strip-shaped pushing plates (23), the two pushing plates (23) are horizontally and fixedly connected to the clamping seat (2), the longitudinal direction of the film cutting platform (11) is uniformly arranged in the length direction of the two pushing plates (23), the two pushing plates (23) are vertically distributed, one ends of the two pushing plates (23) far away from the roll shaft (12) are relatively close and obliquely bent, pushing posts (46) are vertically arranged on the two tensioning rods far away from the roll shaft (12), shaft sleeves (461) are rotatably sleeved on the pushing posts (46), and when the clamping seat (2) moves far away from the roll shaft (12), the pushing plates (23) can push the shaft sleeves (461) and separate the two tensioning wheels (41).
5. Film pulling mechanism of film cutting equipment according to claim 3 or 4, characterized in that the clamping blocks (21) are made of rubber materials, the clamping blocks (21) are all long-strip-shaped, the length direction of the clamping blocks (21) is arranged along the longitudinal direction of the film cutting platform (11), a plurality of strip-shaped protrusions (211) are arranged on opposite side surfaces of the two clamping blocks (21), the strip-shaped protrusions (211) on the two clamping blocks (21) are arranged along the length direction of the clamping blocks (21), the strip-shaped protrusions (211) are opposite one to one, and the cross section of the strip-shaped protrusions (211) is arc-shaped.
6. Film pulling mechanism of film cutting equipment according to claim 3 or 4, characterized in that the upper side of the moving seat (5) is provided with a mounting groove (51), two sliding shafts (52) are fixedly connected in the mounting groove (51) along the transverse direction, two support columns (24) are fixedly connected on the lower side of the clamping seat (2) vertically, the lower ends of the two support columns (24) are fixedly connected with sliding sleeves (25), the two sliding sleeves (25) are respectively sleeved on the two sliding shafts (52) in a sliding manner, the sliding shafts (52) are also sleeved with a return spring (53), one end of the return spring (53) acts on the groove wall of the mounting groove (51), the other end of the return spring (53) acts on the end face of the sliding sleeve (25), and the clamping seat (2) can be close to the film cutting platform (11) and buckled on the edge of the film under the action of the return spring (53).
7. The film pulling mechanism of film cutting equipment according to claim 6, wherein the frame (1) is fixedly connected with the avoidance guide rod (6) at two sides of the film cutting platform (11), the avoidance guide rod (6) is arranged along the longitudinal direction and is located at the outer side of a tensioning wheel (41) far away from the roll shaft (12), one end of the avoidance guide rod (6) far away from the roll shaft (12) is hinged with the avoidance push rod (61), a reset torsion spring is further arranged on the avoidance guide rod (6), one end of the reset torsion spring acts on the avoidance guide rod (6), the other end acts on the avoidance push rod (61), the avoidance push rod (61) inclines towards one side of the film cutting platform under the action of the reset torsion spring, the rollers (26) are connected on the lower side face of the clamping seat (2) in a rotating mode, when the clamping seat (2) is far away from the inner side of the avoidance guide rod (6) and outwards pushes the push rod (61), and when the clamping seat (2) is close to the roll shaft (12) and can roll along the avoidance push rod (61) to the outer side of the avoidance guide rod (6), and the roller (26) can be separated from the outer side of the lower side of the guide rod (6) when the clamping seat (6) is in a rolling mode.
8. Film pulling-out mechanism of film cutting equipment according to claim 3 or 4, characterized in that the frame (1) is fixedly connected with two sliding rails (13) along the longitudinal direction on both sides of the film cutting platform (11), the lower side surface of the movable seat (5) is fixedly connected with two sliding blocks (54), the two sliding blocks (54) are respectively and slidably connected with the two sliding rails (13), the side part of one sliding rail (13) is fixedly connected with a driving rack (33) along the longitudinal direction, the power piece (3) comprises a power motor (31) fixedly connected with the movable seat (5), the motor shaft of the power motor (31) is vertically downward, the motor shaft of the power motor (31) is fixedly connected with a driving gear (32), and the driving gear (32) is meshed with the driving rack (33).
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| CN201711422875.0A CN108001748B (en) | 2017-12-25 | 2017-12-25 | Film pulling mechanism of film cutting equipment |
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| CN201711422875.0A CN108001748B (en) | 2017-12-25 | 2017-12-25 | Film pulling mechanism of film cutting equipment |
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| CN110723355B (en) * | 2019-10-08 | 2021-08-13 | 南京涵铭置智能科技有限公司 | Protective film withdrawing device for gear shaft packaging |
| CN110775338B (en) * | 2019-11-09 | 2020-05-22 | 温州盛淼工业设计有限公司 | Wheel hub cover film coating robot |
| CN111086705B (en) * | 2019-12-24 | 2021-06-25 | 邵倩倩 | Membrane cutting mechanism of environment-friendly membrane coating equipment |
| CN111347473B (en) * | 2020-04-23 | 2024-09-17 | 苏州迈展自动化科技有限公司 | Film strip cutting device and film strip cutting method |
| CN112918820B (en) * | 2021-03-19 | 2022-07-01 | 重庆同力塑料制品有限公司 | Film covering method and device for packaging EPS foam finished products |
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