CN116749595B - Film pulling device - Google Patents
Film pulling device Download PDFInfo
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- CN116749595B CN116749595B CN202311010540.3A CN202311010540A CN116749595B CN 116749595 B CN116749595 B CN 116749595B CN 202311010540 A CN202311010540 A CN 202311010540A CN 116749595 B CN116749595 B CN 116749595B
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- plate
- driving
- clamping
- fixed
- film
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- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 239000002985 plastic film Substances 0.000 claims abstract description 50
- 229920006255 plastic film Polymers 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/92—Delivering
Landscapes
- Advancing Webs (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
The invention relates to a film pulling device, which comprises a box body, a driving roll shaft, a driven roll shaft, a driving mechanism, an air-break clamping mechanism, an air supply mechanism and a pressing mechanism for driving the driven roll shaft to press the driving roll shaft, wherein the air-break clamping mechanism comprises a clamping cylinder, a clamping plate and a fixing plate; the gas transmission end of the gas supply mechanism is respectively communicated with the two compression cylinders and the clamping cylinder through a plurality of gas pipes. The invention provides a film pulling device, which belongs to the technical field of packaging bag preparation, and can clamp a plastic film when an air supply mechanism breaks down and air is broken, so that the plastic film is prevented from falling off and the subsequent production is influenced.
Description
Technical Field
The invention relates to a film pulling device, and belongs to the technical field of packaging bag preparation.
Background
In the packaging bag preparation process, the coiled film sequentially passes through devices such as a big forming triangle and a plastic packaging mechanism to finally form the packaging bag, the packaging bag is provided with power by a film pulling device in the transmission process, the packaging bag is easy to skew in the transmission process, and the bag pulling is unstable, so that the bag making qualification rate is influenced.
The prior art CN217945708U discloses a servo film pulling mechanism, which is characterized in that a driver is connected with the axial direction of a driving roll shaft, and a driven rotating shaft is driven by a driving component to rotate in the opposite direction with the driving roll shaft, so that a bag pulling wheel which is arranged in the opposite direction pulls a packaging bag, but the distance adjustment is realized by a manual adjusting knob, so that the film pulling mechanism is more complex; the hydraulic servo control can shorten the time of manpower adjustment, and the adoption of the hydraulic control mode needs to further consider that unexpected situations occur, such as the occurrence of the condition that the air circuit stops, and the air circuit stops to cause the packaging bag to fall off, so that the follow-up production is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a film pulling device which can clamp a plastic film when an air supply mechanism is broken and has faults and air break, so that the plastic film is prevented from falling off and the subsequent production is influenced.
The technical scheme for solving the technical problems is as follows: the utility model provides a film traction device, includes box, initiative roller, driven roller, actuating mechanism, outage clamping mechanism, air feed mechanism and is used for driving driven roller compresses tightly the hold-down mechanism of initiative roller, driven roller with initiative roller parallel arrangement just has the first gap that is used for plastic film to pass between, the box is relative to the preceding curb plate of arranging and posterior lateral plate corresponds first gap has all seted up the film via hole, initiative roller rotates through first rotation connecting piece and connects in the box, actuating mechanism installs in the box and its drive end pass through drive assembly with initiative roller transmission is connected; the pressing mechanism comprises two pressing cylinders and two mounting blocks, the two pressing cylinders are symmetrically fixed on the two opposite side surfaces of the box body, the piston rods of the two pressing cylinders are perpendicular to the driving roll shaft, the two mounting blocks are respectively fixed with the end parts of the piston rods of the two pressing cylinders correspondingly and are arranged at intervals, and the two ends of the driven roll shaft are rotationally connected to the two mounting blocks through second rotating connecting pieces; the air-break clamping mechanism comprises a clamping cylinder, a clamping plate and a fixing plate, wherein the clamping cylinder is fixed on a side plate of the box body, the clamping plate is fixed on a piston rod of the clamping cylinder, the fixing plate is fixed on the side plate of the box body and can form a second gap corresponding to the film through hole with the clamping plate, and the piston rod of the clamping cylinder retracts after air break so that the clamping plate is abutted with the fixing plate to clamp the plastic film; the gas transmission end of the gas supply mechanism is respectively communicated with the two compression cylinders and the clamping cylinder through a plurality of gas pipes.
The beneficial effects of the invention are as follows: the clamping cylinder is a single-acting cylinder, a piston rod extends out during air supply, the piston rod can be retracted instantaneously when air is cut off, the air supply mechanism ventilates to the clamping cylinder, the piston rod of the clamping cylinder extends, a second gap is formed between the clamping plate and the fixing plate, a plastic film sequentially penetrates through the second gap, the film through hole and the first gap, and then penetrates out of the box body from the film through hole on the rear side plate; the compression cylinder is also a single-acting cylinder, the air supply mechanism ventilates the two compression cylinders, and the two compression cylinders simultaneously push the two mounting blocks so as to drive the driven roll shaft to compress on the driving roll shaft, so that the driven roll shaft and the driving roll shaft clamp the plastic film; the driving mechanism drives the driving roller shaft to rotate so as to convey the plastic film; when the air supply mechanism breaks down, the telescopic rod of the clamping air cylinder is retracted instantaneously to drive the clamping plate to be abutted with the fixing plate so as to clamp the plastic film, and the plastic film is prevented from falling off during the air break, so that the follow-up production is influenced.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the device further comprises a plurality of first extrusion wheels and second extrusion wheels for clamping the plastic film, wherein the first extrusion wheels are installed on the driving roll shaft at equal intervals, the second extrusion wheels are installed on the driven roll shaft at equal intervals, and the first extrusion wheels and the second extrusion wheels are correspondingly arranged.
The beneficial effects of adopting the further scheme are as follows: the first extrusion wheel corresponds to the second extrusion wheel, and can clamp the plastic film and convey the plastic film through rotation.
Further, the plastic film guide piece comprises a plurality of guide long strips, the guide long strips are perpendicular to the driven roll shaft, one ends of the guide long strips are vertically fixed to the inner wall of the box body, the other ends of the guide long strips penetrate through the film through holes, the guide long strips are arranged in pairs along the length direction of the film through holes and are abutted to the inner walls on two sides of the film through holes, and gaps among the first extrusion wheels and gaps among the second extrusion wheels correspond to the guide long strips.
The beneficial effects of adopting the further scheme are as follows: the plurality of guide long strips are abutted against the inner walls at two sides of the film via hole, so that the plastic film can be accurately guided into the film via hole; the guide long strip corresponds to gaps among the first pressing wheels and gaps among the second pressing wheels, so that the plastic film is accurately guided and simultaneously is not affected in conveying.
Further, the plastic film box comprises two air-break clamping mechanisms, wherein two clamping air cylinders are arranged at two ends of the film through hole in the length direction and fixed on side plates of the box body, two clamping plates are correspondingly fixed on piston rods of the two clamping air cylinders, and two fixing plates are correspondingly fixed on the side plates of the box body to be in butt joint with the clamping plates to clamp the plastic film.
The beneficial effects of adopting the further scheme are as follows: the clamping air cylinders are positioned at two ends of the film through holes, can clamp two sides of the width direction of the plastic film, and can still keep the flatness of the plastic film when the air is cut off.
Further, the driving roll shaft and the driven roll shaft are perpendicular to the bottom plate of the box body, and the fixing plate is fixed at the bottom side end of one guide long slat; the clamping plate comprises a U-shaped plate, a connecting plate and an abutting plate, wherein the connecting plate and the abutting plate are parallel to the bottom plate of the U-shaped plate and are respectively and vertically fixed on the outer sides of two side plates of the U-shaped plate, the connecting plate is fixedly connected with a piston rod of the clamping cylinder, an opening of the U-shaped plate corresponds to the guiding long lath, and the abutting plate can be abutted to the fixing plate.
The beneficial effects of adopting the further scheme are as follows: the opening of U template corresponds the long lath of direction, when pressing from both sides tight cylinder and drive the connecting plate and remove, and then drive butt board and fixed plate butt clamp plastic film, the sunken department of U template just can provide the activity space for with the relative movement of the long lath of direction, does not influence butt board and fixed plate butt, compact structure.
Further, the first rotating connecting piece comprises a first connecting block, a second connecting block and two connecting bearings, wherein the first connecting block and the second connecting block are respectively fixed on an inner top plate and an inner bottom plate of the box body and are respectively provided with mounting holes, the outer rings of the two connecting bearings are respectively fixed on the two mounting holes, and the two ends of the driving roll shaft are respectively fixed on the inner rings of the two connecting bearings.
Further, still include a plurality of first guiding axles and a plurality of second guiding axles, a plurality of first guiding axles are followed compress tightly the piston rod direction of cylinder and its one end is fixed on the first connecting block, and the other end is fixed on the corresponding compress tightly the cylinder, a plurality of second guiding axles are followed first guiding axle direction is arranged and one end is fixed on the second connecting block, and the other end is fixed on the corresponding compress tightly the cylinder, two the installation piece corresponds a plurality of respectively first guiding hole and second guiding hole have been seted up to a plurality of first guiding axles and a plurality of second guiding axles, a plurality of first guiding hole sliding connection is in a plurality of first guiding axles, a plurality of second guiding hole sliding connection is in a plurality of on the second guiding axle.
The beneficial effects of adopting the further scheme are as follows: the first guide shaft and the second guide shaft can accurately move synchronously under the driving of the two compression cylinders, and the driven roll shaft is guaranteed to be parallel to the driving roll shaft all the time.
Further, the transmission assembly comprises a driving gear, a driven gear and a chain, wherein the driving gear is installed at the output end of the driving mechanism, the driven gear is installed on the driving roll shaft, and the chain is in transmission connection with the driving gear and the driven gear.
Further, the driving mechanism comprises a driving motor and a speed reducer, the driving motor and the speed reducer are both fixed in the box body, an output shaft of the driving motor is in transmission connection with an input shaft of the speed reducer, and the driving gear is installed on an output shaft of the speed reducer.
Further, the second rotating connecting piece comprises two mounting bearings, fixing holes are formed in the two mounting blocks, outer rings of the two mounting bearings are respectively fixed to the two fixing holes, and two ends of the driven roll shaft are respectively fixed to inner rings of the two mounting bearings.
Drawings
FIG. 1 is a schematic view of the internal structure of a film pulling device according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a film pulling device of the present invention when in operation;
FIG. 3 is a schematic view of a membrane pulling device interrupt gas clamping mechanism and a guide long slat;
FIG. 4 is a schematic diagram of an interruption gas clamping mechanism of a film pulling device according to the present invention;
FIG. 5 is a schematic view of the installation of the parts in the case of the film pulling device according to the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
FIG. 7 is a schematic view of the installation of the parts inside the case of the film pulling device according to the present invention;
FIG. 8 is an enlarged view of portion B of FIG. 7;
fig. 9 is a schematic structural view of a driving mechanism, a first rotating connecting member, a transmission assembly and a driving roll shaft in a film pulling device according to the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1-box, 2-driving roll shaft, 3-driven roll shaft, 4-compressing mechanism, 41-compressing cylinder, 42-mounting block, 5-driving mechanism, 51-driving motor, 52-speed reducer, 6-air-break clamping mechanism, 61-clamping cylinder, 62-clamping plate, 621-U-shaped plate, 622-connecting plate, 623-abutting plate, 63-fixing plate, 64-mounting plate, 7-plastic film, 8-first rotating connecting piece, 81-first connecting block, 82-second connecting block, 83-connecting bearing, 9-driving assembly, 91-driving gear, 92-driven gear, 93-chain, 10-air hole, 11-first compressing wheel, 12-second compressing wheel, 13-guiding long slat, 14-first guiding shaft, 15-second guiding shaft, 16-first gap, 17-second rotating connecting piece, 18-decompressing valve, 19-rubber bulge, 20-pit.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The invention aims to provide a film pulling device which solves the problems in the prior art, and can clamp a plastic film when an air supply mechanism breaks down and air is broken, so that the plastic film is prevented from falling off and the follow-up production is influenced.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides a film pulling device, which is shown in figures 1-9, and comprises a box body 1, a driving roll shaft 2, a driven roll shaft 3, a driving mechanism 5, an air-break clamping mechanism 6, an air supply mechanism and a pressing mechanism 4 for driving the driven roll shaft 3 to press the driving roll shaft 2, wherein the driven roll shaft 3 and the driving roll shaft 2 are arranged in parallel and are provided with first gaps 16 for a plastic film 7 to pass through, a front side plate and a rear side plate which are oppositely arranged in the box body 1 are respectively provided with a film through hole corresponding to the first gaps 16, the driving roll shaft 2 is rotationally connected in the box body 1 through a first rotary connecting piece 8, the driving mechanism 5 is arranged in the box body 1, and the driving end of the driving mechanism is in transmission connection with the driving roll shaft 2 through a transmission component 9; the pressing mechanism 4 comprises two pressing cylinders 41 and two mounting blocks 42, the two pressing cylinders 41 are symmetrically fixed on the opposite side surfaces of the box body 1, the piston rods of the two pressing cylinders are perpendicular to the driving roll shaft 2, the two mounting blocks 42 are respectively fixed with the end parts of the piston rods of the two pressing cylinders 41 correspondingly and are arranged at intervals, and the two ends of the driven roll shaft 3 are rotationally connected to the two mounting blocks 42 through a second rotary connecting piece 17; the air-break clamping mechanism 6 comprises a clamping cylinder 61, a clamping plate 62 and a fixing plate 63, wherein the clamping cylinder 61 is fixed on a side plate of the box body 1, the clamping plate 62 is fixed on a piston rod of the clamping cylinder 61, the fixing plate 63 is fixed on the side plate of the box body 1 and can form a second gap corresponding to the film through hole with the clamping plate 62, and after the air of the clamping cylinder 61 is broken, the piston rod of the clamping cylinder is retracted so that the clamping plate 62 is abutted with the fixing plate 63 to clamp the plastic film 7; the gas delivery end of the gas supply mechanism is respectively communicated with the two compacting cylinders 41 and the clamping cylinder 61 through a plurality of gas pipes.
According to the film pulling device provided by the invention, the clamping cylinder 61 is a single-acting cylinder, a piston rod stretches out during air supply, the piston rod is retracted instantly by an internal spring during air interruption, the air supply mechanism ventilates the clamping cylinder 61, the piston rod of the clamping cylinder 61 stretches out, a second gap is formed between the clamping plate 62 and the fixing plate 63, the plastic film 7 sequentially passes through the second gap, the film through hole and the first gap 16, then penetrates out of the box body 1 from the film through hole on the rear side plate, the air supply mechanism ventilates the two compression cylinders 41, and the two compression cylinders 41 simultaneously push the two mounting blocks 42 so as to drive the driven roll shaft 3 to be compressed on the driving roll shaft 2, so that the driven roll shaft 3 and the driving roll shaft 2 clamp the plastic film 7; the driving mechanism 5 drives the driving roll shaft 2 to rotate so as to convey the plastic film 7; when the air supply mechanism breaks down, the telescopic rod of the clamping air cylinder 61 is retracted instantaneously to drive the clamping plate 62 to be abutted with the fixing plate 63, so as to clamp the plastic film 7, and prevent the plastic film 7 from falling off during the air break, thereby influencing the subsequent production.
Preferably, the air supply mechanism comprises an air compressor and a pressure reducing valve 18, the pressure reducing valve 18 is installed in the box 1, an air hole 10 is formed in the box 1 corresponding to the input port of the pressure reducing valve, the output port of the pressure reducing valve 18 is respectively communicated with the two compression cylinders 41 and the clamping cylinder 61 through a plurality of air pipes, and the air compressor is communicated with the input port of the pressure reducing valve 18 through the air hole 10 through the air pipes.
In a specific embodiment of the present invention, the present invention further includes a plurality of first extrusion wheels 11 and second extrusion wheels 12 for clamping the plastic film 7, where the plurality of first extrusion wheels 11 are installed on the driving roll shaft 2 at equal intervals, the plurality of second extrusion wheels 12 are installed on the driven roll shaft 3 at equal intervals, and the plurality of first extrusion wheels 11 and the plurality of second extrusion wheels 12 are correspondingly arranged.
The first and second squeeze rollers 11 and 12 correspond to each other, and the plastic film 7 can be gripped and conveyed by rotation.
Preferably, the first pinch roller and the second pinch roller are rubber wheels to increase friction with the plastic film 7.
In one embodiment of the present invention, the plastic film guiding member further comprises a plurality of guiding long strips 13, wherein the plurality of guiding long strips 13 are arranged vertically to the driven roller shaft 3, one end of each guiding long strip 13 is vertically fixed on the inner wall of the box body 1, the other end of each guiding long strip passes through the film through hole, the plurality of guiding long strips 13 are arranged in pairs along the length direction of the film through hole and are abutted against the inner walls on two sides of the film through hole, and gaps between the plurality of first extrusion wheels 11 and gaps between the plurality of second extrusion wheels 12 correspond to the plurality of guiding long strips 13.
The plurality of guide long strips 13 are abutted against the inner walls at two sides of the film via hole, so that the plastic film 7 can be accurately guided into the film via hole; the guiding long strip 13 corresponds to gaps among a plurality of first pinch rollers and gaps among a plurality of second pinch rollers, so that the first pinch rollers and the second pinch rollers are not influenced to roll and abut to clamp the plastic film 7 while precisely guiding the plastic film 7.
In one embodiment of the present invention, the air-break clamping mechanism 6 is included, two clamping cylinders 61 are arranged at two ends of the air-break clamping mechanism along the length direction of the film via hole and are fixed on the side plate of the box body 1, two clamping plates 62 are correspondingly fixed on the piston rods of the two clamping cylinders 61, and two fixing plates 63 are correspondingly fixed on the side plate of the box body 1, and the two clamping plates 62 are correspondingly fixed on the side plate of the box body 1 so as to be abutted with the clamping plates 62 to clamp the plastic film 7.
The clamping cylinders 61 are located at two ends of the film via hole, and can clamp two sides of the plastic film 7 in the width direction, so that the flatness of the plastic film 7 can be maintained when air is cut off.
In one embodiment of the present invention, the driving roll shaft 2 and the driven roll shaft 3 are perpendicular to the bottom plate of the box 1, and the fixing plate 63 is fixed at the bottom side end of one guiding long slat 13; the clamping plate 62 includes a U-shaped plate 621, a connecting plate 622 and an abutting plate 623, both the connecting plate 622 and the abutting plate 623 are parallel to the bottom plate of the U-shaped plate 621 and are respectively and vertically fixed on the outer sides of the two side plates thereof, the connecting plate 622 is fixedly connected with the piston rod of the clamping cylinder 61, the opening of the U-shaped plate 621 is arranged corresponding to the guiding long slat 13, and the abutting plate 623 can abut against the fixing plate 63.
The opening of the U-shaped plate 621 corresponds to the guide long strip 13, when the clamping cylinder 61 drives the connecting plate 622 to move, then drives the abutting plate 623 to abut against the fixing plate 63 to clamp the plastic film 7, the concave part of the U-shaped plate 621 can just provide a movable space when relatively moving with the guide long strip 13, the abutting plate 623 and the fixing plate 63 are not affected, and the structure is compact.
Preferably, a plurality of rubber protrusions 19 are fixed on the abutting plate 623, and a plurality of pits 20 are formed on the fixing plate 63 corresponding to the plurality of rubber protrusions 19, so that the clamping effect on the plastic film 7 is improved.
Preferably, the air break clamping mechanism 6 further comprises a mounting plate 64, the mounting plate 64 is mounted on the case 1, and the clamping cylinder 61 is fixed on the mounting plate 64.
In a specific embodiment of the present invention, the first rotating connection member 8 includes a first connection block 81, a second connection block 82, and two connection bearings 83, where the first connection block 81 and the second connection block 82 are respectively fixed on an inner top plate and an inner bottom plate of the case 1 and are provided with mounting holes, outer rings of the two connection bearings 83 are respectively fixed on the two mounting holes, and two ends of the driving roller shaft 2 are respectively fixed on the inner rings of the two connection bearings 83.
In a specific embodiment of the present invention, the present invention further includes a plurality of first guide shafts 14 and a plurality of second guide shafts 15, wherein the plurality of first guide shafts 14 are disposed along the piston rod direction of the compression cylinder 41, and one ends of the plurality of first guide shafts are fixed on the first connecting blocks 81, the other ends of the plurality of first guide shafts are fixed on the corresponding compression cylinder 41, the plurality of second guide shafts 15 are disposed along the first guide shafts 14, and one ends of the plurality of second guide shafts are fixed on the second connecting blocks 82, the other ends of the plurality of second guide shafts are fixed on the corresponding compression cylinder 41, the two mounting blocks 42 are respectively provided with a plurality of first guide holes and a plurality of second guide holes corresponding to the plurality of first guide shafts 14 and the plurality of second guide shafts 15, the plurality of first guide holes are slidably connected to the plurality of first guide shafts 14, and the plurality of second guide holes are slidably connected to the plurality of second guide shafts 15.
The first guide shaft 14 and the second guide shaft 15 can accurately and synchronously move through the two mounting blocks 42 driven by the two pressing cylinders 41, so that the driven roll shaft 3 is ensured to be parallel to the driving roll shaft 2 all the time.
In one embodiment of the present invention, the transmission assembly 9 includes a driving gear 91, a driven gear 92 and a chain 93, wherein the driving gear 91 is installed at the output end of the driving mechanism 5, the driven gear 92 is installed on the driving roller shaft 2, and the chain 93 is in transmission connection with the driving gear 91 and the driven gear 92.
Preferably, the diameter of the driving gear 91 is smaller than the diameter of the driven gear 92.
In a specific embodiment of the present invention, the driving mechanism 5 includes a driving motor 51 and a speed reducer 52, both the driving motor 51 and the speed reducer 52 are fixed in the case 1, an output shaft of the driving motor 51 is in transmission connection with an input shaft of the speed reducer 52, and a driving gear 91 is mounted on an output shaft of the speed reducer 52.
In a specific embodiment of the present invention, the second rotary connecting member 17 includes two mounting bearings, the two mounting blocks 42 are provided with fixing holes, outer rings of the two mounting bearings are respectively fixed on the two fixing holes, and two ends of the driven roller shaft 3 are respectively fixed on inner rings of the two mounting bearings.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A film pulling apparatus, comprising: box body (1), driving roll shaft (2) and driven roll shaft (3) 、 The driving mechanism (5), the air-break clamping mechanism (6), the air supply mechanism and the pressing mechanism (4) for driving the driven roller shaft (3) to press the driving roller shaft (2), wherein the driven roller shaft (3) and the driving roller shaft (2) are arranged in parallel and are provided with a first gap (16) for a plastic film (7) to pass through, a front side plate and a rear side plate which are oppositely arranged on the box body (1) are provided with film through holes corresponding to the first gap (16), the driving roller shaft (2) is rotationally connected in the box body (1) through a first rotary connecting piece (8), and the driving mechanism (5) is installed in the box body (1) and the driving end of the driving mechanism is in transmission connection with the driving roller shaft (2) through a transmission component (9);
the compressing mechanism (4) comprises two compressing cylinders (41) and two mounting blocks (42), the two compressing cylinders (41) are symmetrically fixed on the two opposite side surfaces of the box body (1) and the piston rods of the two compressing cylinders are perpendicular to the driving roll shaft (2), the two mounting blocks (42) are respectively fixed with the end parts of the piston rods of the two compressing cylinders (41) correspondingly, and the two ends of the driven roll shaft (3) are rotationally connected to the two mounting blocks (42) through second rotating connecting pieces (17);
the air-break clamping mechanism (6) comprises a clamping cylinder (61), a clamping plate (62) and a fixing plate (63), the clamping cylinder (61) is fixed on a side plate of the box body (1), the clamping plate (62) is fixed on a piston rod of the clamping cylinder (61), the fixing plate (63) is fixed on the side plate of the box body (1) and can form a second gap corresponding to the film through hole with the clamping plate (62), and after the air of the clamping cylinder (61) is broken, the piston rod of the clamping cylinder is retracted so that the clamping plate (62) is abutted with the fixing plate (63) to clamp the plastic film (7);
the gas transmission end of the gas supply mechanism is respectively communicated with the two compression cylinders (41) and the clamping cylinder (61) through a plurality of gas pipes;
the device further comprises a plurality of first extrusion wheels (11) and second extrusion wheels (12) for clamping the plastic film (7), wherein the first extrusion wheels (11) are arranged on the driving roll shaft (2) at equal intervals, the second extrusion wheels (12) are arranged on the driven roll shaft (3) at equal intervals, and the first extrusion wheels (11) and the second extrusion wheels (12) are correspondingly arranged;
the plastic film guide piece comprises a plurality of guide long strips (13), the guide long strips (13) are perpendicular to the driven roll shaft (3), one end of each guide long strip is perpendicularly fixed on the inner wall of the box body (1), the other end of each guide long strip passes through the film through hole, the guide long strips (13) are arranged in pairs along the length direction of the film through hole and are abutted to the inner walls on two sides of the film through hole, and gaps among the first extrusion wheels (11) and gaps among the second extrusion wheels (12) correspond to the guide long strips (13);
the plastic film box comprises two air-break clamping mechanisms (6), two clamping air cylinders (61) are arranged at two ends of the film through hole along the length direction of the film through hole and are fixed on side plates of the box body (1), two clamping plates (62) are correspondingly fixed on piston rods of the two clamping air cylinders (61), and two fixing plates (63) are correspondingly fixed on the side plates of the box body (1) so as to be in butt joint with the clamping plates (62) to clamp the plastic film (7);
the driving roll shaft (2) and the driven roll shaft (3) are perpendicular to the bottom plate of the box body (1), and the fixed plate (63) is fixed at the bottom side end of one guide long slat (13); the clamping plate (62) comprises a U-shaped plate (621), a connecting plate (622) and an abutting plate (623), wherein the connecting plate (622) and the abutting plate (623) are both parallel to the bottom plate of the U-shaped plate (621) and are respectively and vertically fixed on the outer sides of the two side plates of the U-shaped plate, the connecting plate (622) is fixedly connected with a piston rod of the clamping cylinder (61), an opening of the U-shaped plate (621) corresponds to the guiding long plate strip (13) and the abutting plate (623) can be abutted with the fixing plate (63).
2. The film pulling device according to claim 1, wherein the first rotating connecting piece (8) comprises a first connecting block (81), a second connecting block (82) and two connecting bearings (83), the first connecting block (81) and the second connecting block (82) are respectively fixed on an inner top plate and an inner bottom plate of the box body (1) and are respectively provided with mounting holes, outer rings of the two connecting bearings (83) are respectively fixed on the two mounting holes, and two ends of the driving roll shaft (2) are respectively fixed on inner rings of the two connecting bearings (83).
3. A film pulling device according to claim 2, further comprising a plurality of first guide shafts (14) and a plurality of second guide shafts (15), wherein the plurality of first guide shafts (14) are arranged along the piston rod direction of the pressing cylinder (41) and have one ends fixed to the first connecting blocks (81), the other ends are fixed to the corresponding pressing cylinders (41), the plurality of second guide shafts (15) are arranged along the first guide shafts (14) and have one ends fixed to the second connecting blocks (82), the other ends are fixed to the corresponding pressing cylinders (41), the two mounting blocks (42) are provided with a plurality of first guide holes and second guide holes corresponding to the plurality of first guide shafts (14) and the plurality of second guide shafts (15), respectively, and the plurality of first guide holes are slidably connected to the plurality of first guide shafts (14) and the plurality of second guide holes are slidably connected to the plurality of second guide shafts (15).
4. A film pulling device according to claim 1, characterized in that the transmission assembly (9) comprises a driving gear (91), a driven gear (92) and a chain (93), the driving gear (91) is mounted at the output end of the driving mechanism (5), the driven gear (92) is mounted on the driving roll shaft (2), and the chain (93) is in transmission connection with the driving gear (91) and the driven gear (92).
5. The film pulling device according to claim 4, wherein the driving mechanism (5) comprises a driving motor (51) and a speed reducer (52), the driving motor (51) and the speed reducer (52) are both fixed in the box body (1), an output shaft of the driving motor (51) is in transmission connection with an input shaft of the speed reducer (52), and the driving gear (91) is mounted on an output shaft of the speed reducer (52).
6. A film pulling device according to claim 1, wherein the second rotary connecting piece (17) comprises two mounting bearings, the two mounting blocks (42) are provided with fixing holes, the outer rings of the two mounting bearings are respectively fixed on the two fixing holes, and the two ends of the driven roll shaft (3) are respectively fixed on the inner rings of the two mounting bearings.
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|---|---|
| CN116749595A (en) | 2023-09-15 |
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