CN113525793A - Plastic bag sealing device and method and packaging equipment - Google Patents
Plastic bag sealing device and method and packaging equipment Download PDFInfo
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- CN113525793A CN113525793A CN202110766509.7A CN202110766509A CN113525793A CN 113525793 A CN113525793 A CN 113525793A CN 202110766509 A CN202110766509 A CN 202110766509A CN 113525793 A CN113525793 A CN 113525793A
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- moving plate
- bag
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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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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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
- B65B61/005—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for removing material by cutting
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a plastic bag sealing device which comprises a pivot rod, a first connecting rod, a second connecting rod, a first moving plate, a second moving plate, a telescopic cylinder, a movable cutter set, a fixed cutter set, an air suction pipe, a driving motor and a transmission assembly, wherein the pivot rod is connected with the first connecting rod through the second connecting rod; the lower sides of two ends of the first moving plate and the second moving plate are movably connected to the rack through sliding rails, the end parts of the pivot rods are rotatably connected through bearing blocks, swing rods are fixedly arranged on the pivot rods, and connecting holes are formed in two ends of each swing rod; one end of the first connecting rod is hinged with the connecting hole of the swinging rod, and the other end of the first connecting rod is hinged with the first moving plate; one end of the second connecting rod is hinged with the other connecting hole of the swinging rod, and the other end of the second connecting rod is hinged with the second moving plate; the telescopic cylinder is installed on the second moving plate, and the movable knife tackle is movably connected to the second moving plate through the sliding rail, and the fixed knife tackle is fixedly arranged on the first moving plate. The invention has the advantages of high sealing efficiency and smooth sealing.
Description
Technical Field
The invention relates to the technical field of packaging machinery, in particular to a plastic bag sealing device, a plastic bag sealing method and packaging equipment.
Background
The sealing device is a machine for sealing packaging bags filled with packing materials, and the like, after materials are filled into the packaging bags, the packaging bags need to be sealed in order to store the materials in a sealed manner, maintain the quality of the materials and avoid leakage and loss of the materials, and the operation is finished on the sealing device for packaging.
The Chinese patent application (publication number: CN206900782U, published: 2018.01.19) discloses a sealing device of a salt packaging machine, which comprises a support frame, a rotating shaft transversely installed on one side of the support frame and a fixed shaft longitudinally and symmetrically installed on the other side of the support frame, wherein a connecting rod device and a fixed shaft sleeve connected with a power device are installed on the rotating shaft, and one end of the connecting rod device is connected with a sealing seat installed on the fixed shaft; the seal seat includes blade holder and the sealing of being connected with the blade holder, the seal groove has been seted up to sealing one side, and the sealing seat top is equipped with cooling device, below and is equipped with exhaust apparatus, the utility model discloses a connecting rod device carries out the transmission and seals, and automatic drive is sealed separately between the seat, is foldd, and the circulation is reciprocal, realizes sealing the automation of salt packaging bag, has improved and has sealed efficiency.
The prior art has the following defects: 1. the sealing efficiency is low, and the sealing quality is not high; 2. the packaging bag is soft and difficult to be opened completely and packaged; 3. the packaging and the sealing are separated, the packaging efficiency is low, and the packaging integration degree is low; 4. the package bag is not flat after being bagged.
Disclosure of Invention
The invention aims to provide a sealing device and a sealing method for a sealed plastic bag, which are efficient in sealing and smooth in sealing, aiming at the problems of low sealing efficiency and low sealing quality in the prior art.
For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a sealing device for plastic bags comprises a pivot rod, a first connecting rod, a second connecting rod, a first moving plate, a second moving plate, a telescopic cylinder, a movable knife group, a fixed knife group, an air suction pipe, a driving motor and a transmission assembly; the lower sides of two ends of the first movable plate and the second movable plate are movably connected to the rack through sliding rails, a space is reserved between the first movable plate and the second movable plate, the end parts of the central rod are rotatably connected through a bearing block, a swinging rod is fixedly arranged on the central rod, connecting holes are formed in two ends of the swinging rod, an adjusting cylinder is arranged in the middle of the first connecting rod, and the adjusting cylinder adjusts the distance between two ends of the first connecting rod; one end of the first connecting rod is hinged with the connecting hole of the swinging rod, and the other end of the first connecting rod is hinged with the first moving plate; one end of the second connecting rod is hinged with the other connecting hole of the swinging rod, and the other end of the second connecting rod is hinged with the second moving plate; the telescopic cylinder is arranged on the second moving plate, the movable knife group and the fixed knife group are symmetrically arranged, the movable knife group is movably connected to the second moving plate through a sliding rail, the telescopic end of the telescopic cylinder is connected with the movable knife group, and the fixed knife group is fixedly arranged on the first moving plate; the driving motor is fixedly arranged on the rack, and the transmission assembly is connected with an output shaft and a pivot rod of the driving motor to realize power transmission.
Preferably, the movable knife group and the fixed knife group have the same structure and comprise a hot melting plate and cutting knives, the cutting knives are installed at the upper end of the hot melting plate, heating wires are arranged in the hot melting plate, and two cutting knives are arranged on each hot melting plate.
Preferably, the transmission assembly comprises two synchronizing wheels and a synchronous belt meshed with the synchronizing wheels.
Preferably, the air suction pipe is fixed on the fixed cutter set, the air suction pipe is bifurcated, two suction end parts of the air suction pipe are flat and aligned with the cutting knife, and the other end of the air suction pipe is connected with a negative pressure air suction device.
A plastic bag sealing method includes driving a pivot rod to swing for a certain distance by a driving motor, enabling a first connecting rod and a second connecting rod to form dislocation movement, driving a first moving plate and a second moving plate to move close to or away from each other, driving a movable knife group to be close to a fixed knife group by a telescopic cylinder, sealing a packaging bag by two hot melting plates, cutting off the sealed upper end portion through a cutting knife, and sucking leftover materials out through an air suction pipe.
A plastic bag packaging device comprises a rack, and a bag blowing device, a sealing device, a shaping device and a discharging device which are arranged on the rack, wherein the rack is formed by assembling section bar frames; the sealing device adopts the technical scheme to provide the plastic bag sealing device.
Preferably, the bag blowing device is used for blowing air into the plastic bag to make the plastic bag swell; be used for restricting all around the wrapping bag among the shaping device, closing device is used for carrying out the hot melt to the upper end of wrapping bag and seals, and the manual work will treat that the packing material is put into the wrapping bag on the operation panel.
Preferably, the bag blowing device comprises a guide frame, a linear bearing, a lifting plate, an inclined strut, a gas blowing column, a stepping motor, a synchronous belt assembly, a gas inlet seat, a control cylinder and a suction frame; the guide frame is fixedly arranged on the rack, the middle part of the guide frame is a cylindrical shaft, the linear bearing is movably matched on the cylindrical shaft, the lifting plate is arranged on the linear bearing, one side of the lifting plate is provided with a connecting channel, the other side of the lifting plate is provided with the inclined strut, the air blowing column is arranged at the lower end of the inclined strut, and the connecting channel and the inclined strut are hollow and used for air to pass through; a fine hole is formed in the side of the air blowing column, a prismatic vertical groove is formed in the side face of the air blowing column, and the cross section of the air blowing column is in a double-dovetail shape; the stepping motor is arranged above the guide frame; the air inlet seat is arranged at the lower end of the guide frame, the control cylinder is arranged at the upper end of the air inlet seat, and the telescopic end of the control cylinder is provided with a blocking piece; the frame that induced drafts is fixed in the frame, and the frame that induced drafts is inside to be coherent pipeline, and the middle part of frame that induced drafts is provided with two and puts the material rectangular hole, puts the material rectangular hole and is located the gas column under, puts and is provided with one row of suction hole around the material rectangular hole, holds the wrapping bag.
Preferably, the lower end of the connecting channel and the edge of the air inlet seat are provided with round chamfers, and the side surface of the connecting channel is tightly attached to the side surface of the air inlet seat.
Preferably, the synchronous belt assembly comprises an upper synchronous wheel, a lower synchronous wheel and a synchronous belt wound on the two synchronous wheels, the synchronous belt assembly is connected to the upper end and the lower end of the guide frame, and the shaft end of the stepping motor is fixed with one synchronous wheel of the synchronous belt assembly; the middle part of the air inlet seat is provided with a vertical groove, the blocking piece is matched in the vertical groove, the air inlet seat is internally provided with a horizontal vent groove, and the blocking piece descends to block the vent groove.
The plastic bag sealing device and the method adopting the technical scheme have the advantages that: the first moving plate and the second moving plate move back and forth by swinging the central pivot rod back and forth, sealing and cutting are realized at the same time, and the sealing efficiency is higher; the distance between the first moving plate and the second moving plate can be adjusted through the telescopic cylinder and the adjusting cylinder, so that the distance between the two moving plates is realized, and the sealing pressing force is indirectly controlled; the redundant leftover bits and pieces at the upper part are cut off by a cutting knife after the sealing, the quality of the sealing position is improved, and the leftover bits and pieces are sucked out from the upper part through an air suction pipe after being cut off, so that waste discharge is facilitated.
Further, the plastic bag packaging equipment adopting the technical scheme has the advantages that:
1. the bag blowing device is temporarily sleeved on the packaging bag through the air blowing column, and then descends through the air blowing column, so that the packaging bag can be placed into the packaging bag while descending, the bag can be opened by air blowing, and the bag opening efficiency is higher; the lower end of the packaging bag can be flattened by the structure of the air blowing column, and the prismatic vertical groove formed in the side face is convenient for air blowing, so that the packaging bag is prevented from being blown and dislocated.
2. The sealing device realizes the back-and-forth movement between the first moving plate and the second moving plate through the back-and-forth swinging of the pivot rod, simultaneously realizes the sealing and cutting, and has higher sealing efficiency; the distance between the first moving plate and the second moving plate can be adjusted through the telescopic cylinder and the adjusting cylinder, so that the distance between the two moving plates is realized, and the sealing pressing force is indirectly controlled; the redundant leftover bits and pieces at the upper part are cut off by a cutting knife after the sealing, the quality of the sealing position is improved, and the leftover bits and pieces are sucked out from the upper part through an air suction pipe after being cut off, so that waste discharge is facilitated.
3. The shaping device is provided with two groups of shaping components to flatten the periphery of the packaging bag, and the shaping components arranged oppositely can adjust relative distance, so that the packaging bag is suitable for product packaging with synchronous size and is convenient to adjust; the top shaping component is arranged to flatten the sealing position of the packaging bag, so that the sealing is convenient.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention.
Fig. 2 is an exploded view of the bag blowing device.
FIG. 3 is a sectional view of the bag blowing device.
Fig. 4 is a structural view of the sealing device.
Fig. 5 is an exploded view of the reforming device.
Fig. 6 is a structural view of the blanking apparatus.
Detailed Description
As shown in figure 1, the plastic bag packaging equipment comprises a rack 1, a bag blowing device 2, a sealing device 3, a shaping device 4 and a discharging device 5, wherein the bag blowing device 2, the sealing device 3, the shaping device 4 and the discharging device 5 are installed on the rack 1, the rack 1 is formed by assembling section racks, an operating platform 6 is arranged on the side of the rack 1, the bag blowing device 2 is located right above the shaping device 4, the sealing device 3 corresponds to the middle parts of the bag blowing device 2 and the shaping device 4, the discharging device 5 is located below the shaping device 4, and an air pump is further arranged on the rack 1. The bag blowing device 2 is used for blowing air into the plastic bag to make the plastic bag swell; be used for restricting all around the wrapping bag in the shaping device 4, closing device 3 is used for carrying out the hot melt to the upper end of wrapping bag and seals, and the manual work will treat that the packing material is put into the wrapping bag on operation panel 6. The sealing device 3 is a sealing device for plastic bags.
As shown in fig. 2 and 3, the bag blowing device 2 includes a guide frame 21, a linear bearing 22, a lifting plate 23, a diagonal support 24, a blowing column 25, a stepping motor 26, a synchronous belt assembly 27, an air inlet seat 28, a control cylinder 29 and an air suction frame 210; the guide frame 21 is fixedly arranged on the rack, the middle part of the guide frame 21 is a cylindrical shaft, the linear bearing 22 is movably matched on the cylindrical shaft, the lifting plate 23 is arranged on the linear bearing 22, one side of the lifting plate 23 is provided with a connecting channel 231, the other side of the lifting plate 23 is provided with the inclined strut 24, the air blowing column 25 is arranged at the lower end of the inclined strut 24, and the connecting channel 231 and the inclined strut 24 are hollow and used for air to pass through; a fine hole is formed in the side of the air blowing column 25, a prismatic vertical groove is formed in the side face of the air blowing column 25, and the cross section of the air blowing column 25 is in a double-dovetail shape; the stepping motor 26 is arranged above the guide frame 21, the synchronous belt assembly 27 comprises an upper synchronous wheel, a lower synchronous wheel and a synchronous belt wound on the two synchronous wheels, the synchronous belt assembly 27 is connected to the upper end and the lower end of the guide frame 21, and the shaft end of the stepping motor 26 is fixed with one synchronous wheel of the synchronous belt assembly 27; the air inlet seat 28 is arranged at the lower end of the guide frame 21, the control cylinder 29 is arranged at the upper end of the air inlet seat 28, and the telescopic end of the control cylinder 29 is provided with a blocking piece 291; the air suction frame 210 is fixed on the frame, a coherent pipeline is arranged inside the air suction frame 210, two material placing rectangular holes 211 are formed in the middle of the air suction frame 210, the material placing rectangular holes 211 are located right below the air blowing columns 25, and a row of air suction holes are formed in the periphery of each material placing rectangular hole 211 to suck the packaging bags; the middle of the air inlet seat 28 is provided with a vertical groove, the blocking piece 291 is matched in the vertical groove, a horizontal vent groove is arranged in the air inlet seat 28, and the blocking piece 291 descends to block the vent groove. The lower end of the connecting channel 231 and the edge of the air inlet seat 28 are provided with round chamfers 232, and the side surface of the connecting channel 231 is tightly attached to the side surface of the air inlet seat 28.
When the bag blowing device 2 works, firstly, a packaging bag is sleeved on the air blowing column 25, then the synchronous belt component 27 drives the lifting plate 23 to descend, the packaging bag moves downwards, the connecting channel 231 is contacted with the air inlet seat 28, then the lifting plate 23 is driven to ascend by the control cylinder 29, air flow passes through, and air is finally blown out from the fine hole in the side of the air blowing column 25 to swell the packaging bag.
The bag blowing device 2 solves the problems that the packaging bag is soft, difficult to completely open and difficult to package, and the packaging bag can be placed in a descending mode and opened by blowing air through arranging the air blowing column 25 to temporarily sleeve the packaging bag and then descending through the air blowing column 25, so that the bag opening efficiency is higher; the lower end of the packaging bag can be flattened by the structure of the air blowing column 25, and the prismatic vertical groove formed in the side face is convenient for air blowing, so that the packaging bag is prevented from being blown and dislocated.
As shown in fig. 4, a sealing apparatus for plastic bags comprises a pivot rod 31, a first link 32, a second link 33, a first moving plate 34, a second moving plate 35, a telescopic cylinder 36, a movable knife group 37, a fixed knife group 38, an air suction pipe 39, a driving motor 310 and a transmission assembly 311; the lower sides of two ends of the first moving plate 34 and the second moving plate 35 are movably connected to the rack through sliding rails, a space is reserved between the first moving plate 34 and the second moving plate 35, the end part of the center rod 31 is rotatably connected through a bearing block, a swing rod 311 is fixedly arranged on the center rod 31, connecting holes are formed in two ends of the swing rod 311, an adjusting cylinder 321 is arranged in the middle of the first connecting rod 32, and the adjusting cylinder 321 adjusts the distance between two ends of the first connecting rod 32; one end of the first link 32 is hinged with the connecting hole of the swing rod 311, and the other end of the first link 32 is hinged with the first moving plate 34; one end of the second connecting rod 33 is hinged with the other connecting hole of the swinging rod 311, and the other end of the second connecting rod 33 is hinged with the second moving plate 35; the telescopic cylinder 36 is mounted on the second moving plate 35, the movable knife group 37 and the fixed knife group 38 are symmetrically arranged, the movable knife group 37 is movably connected to the second moving plate 35 through a sliding rail, the telescopic end of the telescopic cylinder 36 is connected with the movable knife group 37, the fixed knife group 38 is fixedly arranged on the first moving plate 34, the movable knife group 37 and the fixed knife group 38 have the same structure and comprise a hot melting plate and cutting knives, the cutting knives are mounted at the upper end of the hot melting plate, electric heating wires are arranged in the hot melting plate, and two cutting knives are arranged on each hot melting plate; the driving motor 310 is fixedly arranged on the frame, and the transmission assembly 311 is connected with the output shaft of the driving motor 310 and the pivot rod 31 to realize power transmission. The transmission assembly 311 includes two synchronizing wheels and a synchronizing belt engaged with the synchronizing wheels. The air suction pipe 39 is fixed on the fixed cutter group 38, the air suction pipe 39 is bifurcated, two suction end parts of the air suction pipe 39 are flat and aligned with the cutting knife, and the other end of the air suction pipe 39 is connected with a negative pressure air suction device.
When the plastic bag sealing device works, the driving motor 310 drives the pivot rod 31 to swing for a certain distance, so that the first connecting rod 32 and the second connecting rod 33 form dislocation movement, the first moving plate 34 and the second moving plate 35 are driven to move close to or away from each other, the telescopic cylinder 36 drives the movable knife group 37 to be close to the fixed knife group 38, the two hot melting plates seal the packaging bag, the sealed upper end part is cut off by the cutting knife, and then leftover materials are sucked out through the air suction pipe 39.
The plastic bag sealing device solves the problems of low sealing efficiency and low sealing quality, realizes the back-and-forth movement between the first moving plate 34 and the second moving plate 35 through the back-and-forth swing of the central pivot rod 31, realizes the sealing and the cutting at the same time, and has higher sealing efficiency; after sealing, the redundant leftover materials at the upper part are cut off by a cutting knife, the quality of the sealing position is improved, and the leftover materials are sucked out from the upper part through the air suction pipe 39 after being cut off, so that waste discharge is facilitated.
As shown in fig. 5, the shaping device 4 includes a mounting frame 41, a transverse moving frame 42, a transverse screw group 43, a first shaping assembly 44, a fixed resisting plate 45, a mounting frame 46, a longitudinal moving frame 47, a top shaping assembly 48, a second shaping assembly 49 and a longitudinal screw group 410; the mounting frame 41 is fixed on the frame, the transverse moving frame 42 is movably connected to the mounting frame 41 through a guide post, the transverse lead screw group 43 is arranged on the mounting frame 41, and the moving end of the transverse lead screw group 43 is connected with the transverse moving frame 42; the transverse screw rod group 43 and the longitudinal screw rod group 410 are double-section screw rods, the four-rod turning directions at two ends are opposite, and the transverse screw rod group 43 and the longitudinal screw rod group 410 are vertically arranged; the middle parts of the transverse screw rod group 43 and the mounting frame 41 are provided with transverse bars 411, and the fixed resisting plates 45 are arranged on two sides of the transverse bars 411; the first shaping assemblies 44 are mounted on the transverse moving frame 42, two groups of the first shaping assemblies 44 are arranged, and the first shaping assemblies 44 are oppositely arranged; the mounting frame 46 is arranged above the mounting frame 41, the longitudinal moving frame 47 is connected to the mounting frame 41 through guide posts, the longitudinal screw group 410 is arranged on the mounting frame 46, two moving ends of the longitudinal screw group 410 are connected with the longitudinal moving frame 47, the top reshaping component 48 is oppositely arranged at two ends of the mounting frame 46, and the second reshaping component 49 is arranged on the longitudinal moving frame 47; the first shaping component 44 and the fixed resisting plate 45 correspond to two opposite side surfaces of the packaging bag, and the second shaping component 49 corresponds to the other opposite side surface of the packaging bag; top reforming assembly 48 corresponds to the upper end of the package. The first reshaping component 44 and the second reshaping component 49 comprise an air cylinder and a push plate arranged at the telescopic end of the air cylinder, and the push plate is vertically arranged; the push plate of the top fairing assembly 48 is positioned horizontally.
When the shaping device 4 works, after articles are filled in the packaging bag, the first shaping component 44 is pushed out to flatten one side, and the second shaping component 49 is also pushed out to press the other side; the top reforming assembly 48 is then pushed out to compress the top of the bag.
The shaping device 4 solves the problem that the package is not flat after the package bag is packaged, the periphery of the package bag is flattened by arranging two groups of shaping components, and the shaping components which are oppositely arranged can adjust relative distance, so that the package bag is suitable for product packages with synchronous sizes and is convenient to adjust; the top reshaping component 48 is arranged to flatten the sealing position of the packaging bag, so that the sealing is convenient.
As shown in fig. 6, the blanking device 5 includes a lifting chute 51, a push block 52, a blanking cylinder 53, a jack 54 and a guide seat 55; the lifting chute 51 is movably connected to the guide seat 55, the blanking cylinder 53 is installed on the side of the lifting chute 51, the push block 52 is installed at the telescopic end of the blanking cylinder 53, the push block 52 is located in the lifting chute 51, the guide seat 55 is fixedly arranged, the lower end of the jack 54 is arranged on the rack, and the upper end of the jack 54 is connected with the lifting chute 51.
A plastic bag packaging method comprises the following steps of:
s1 packaging bag feeding and bag opening: manually placing the packaging bag into the bag blowing device 2, and blowing the packaging bag by the bag blowing device 2 to open the packaging bag
Fixing the rows;
putting the S2 product: manually putting a product to be packaged into a packaging bag, and then flattening the periphery of the packaging bag from the side surface by a shaping device 4; s3 hot-melt sealing: the sealing device 3 carries out hot melting sealing on the upper end of the packaging bag and cuts off redundant leftover materials;
and (S4) blanking of products: and the product is pushed out from the side by the blanking device 5 after the sealing is finished, so that blanking is realized.
Claims (10)
1. A sealing device for plastic bags is characterized by comprising a pivot rod (31), a first connecting rod (32), a second connecting rod (33), a first moving plate (34), a second moving plate (35), a telescopic cylinder (36), a movable knife group (37), a fixed knife group (38), an air suction pipe (39), a driving motor (310) and a transmission component (311); the lower sides of two ends of the first moving plate (34) and the second moving plate (35) are movably connected to the rack through sliding rails, a space is reserved between the first moving plate (34) and the second moving plate (35), the end part of the center rod (31) is rotatably connected through a bearing block, a swing rod (311) is fixedly arranged on the center rod (31), connecting holes are formed in two ends of the swing rod (311), an adjusting cylinder (321) is arranged in the middle of the first connecting rod (32), and the adjusting cylinder (321) adjusts the distance between two ends of the first connecting rod (32); one end of the first connecting rod (32) is hinged with the connecting hole of the swinging rod (311), and the other end of the first connecting rod (32) is hinged with the first moving plate (34); one end of the second connecting rod (33) is hinged with the other connecting hole of the swinging rod (311), and the other end of the second connecting rod (33) is hinged with the second moving plate (35); the telescopic cylinder (36) is installed on the second moving plate (35), the movable knife tackle (37) and the fixed knife tackle (38) are symmetrically arranged, the movable knife tackle (37) is movably connected to the second moving plate (35) through a sliding rail, the telescopic end of the telescopic cylinder (36) is connected with the movable knife tackle (37), and the fixed knife tackle (38) is fixedly arranged on the first moving plate (34); the driving motor (310) is fixedly arranged on the rack, and the transmission component (311) is connected with an output shaft of the driving motor (310) and the pivot rod (31) to realize power transmission.
2. The plastic bag sealing apparatus according to claim 1, wherein the movable blade assembly (37) and the fixed blade assembly (38) have the same structure, and include a thermal melting plate and cutting blades, the cutting blades are installed at the upper end of the thermal melting plate, the thermal melting plate is internally provided with heating wires, and each thermal melting plate is provided with two cutting blades.
3. The plastic bag sealer according to claim 1, wherein the driving unit (311) comprises two synchronizing wheels and a timing belt engaged with the synchronizing wheels.
4. The sealing device for plastic bags according to claim 1, wherein the air suction pipe (39) is fixed on the fixed knife set (38), the air suction pipe (39) is bifurcated, two suction ends of the air suction pipe (39) are flat and aligned with the cutting knife, and the other end of the air suction pipe (39) is connected with a negative pressure air suction device.
5. The utility model provides a plastic bag sealing method, characterized in that, driving motor (310) drive pivot pole (31) swing certain distance, make first connecting rod (32) and second connecting rod (33) form dislocation motion, drive first movable plate (34) and second movable plate (35) and be close or deviate from the motion, telescopic cylinder (36) drive movable knife tackle (37) are close to fixed knife tackle (38), two hot melt boards seal the wrapping bag, the upper end part of sealing is cut off through the cutting knife, then leftover bits are through breathing pipe (39) suction.
6. The plastic bag packaging equipment is characterized by comprising a rack (1), a bag blowing device (2), a sealing device (3), a shaping device (4) and a discharging device (5), wherein the bag blowing device (2), the sealing device (3), the shaping device (4) and the discharging device (5) are mounted on the rack (1), the rack (1) is assembled by section bar frames, an operation table (6) is arranged on the side of the rack (1), the bag blowing device (2) is positioned right above the shaping device (4), the sealing device (3) corresponds to the middle parts of the bag blowing device (2) and the shaping device (4), the discharging device (5) is positioned below the shaping device (4), and an air pump is further arranged on the rack (1); the sealing device (3) for plastic bags according to any of claims 1-4.
7. A plastic bag packaging apparatus as claimed in claim 6, wherein said bag blowing means (2) is adapted to blow air into the interior of the plastic bag to cause it to bulge; be used for restricting all around the wrapping bag in shaping device (4), closing device (3) are used for carrying out the hot melt to the upper end of wrapping bag and seal, and the manual work is in the wrapping bag with treating the packing material on operation panel (6).
8. The plastic bag packaging apparatus according to claim 6, wherein the bag blowing device (2) comprises a guide frame (21), a linear bearing (22), a lifting plate (23), an inclined strut (24), a blowing column (25), a stepping motor (26), a synchronous belt assembly (27), an air inlet seat (28), a control cylinder (29) and an air suction frame (210); the guide frame (21) is fixedly arranged on the rack, the middle part of the guide frame (21) is a cylindrical shaft, the linear bearing (22) is movably matched on the cylindrical shaft, the lifting plate (23) is arranged on the linear bearing (22), one side of the lifting plate (23) is provided with a connecting channel (231), the other side of the lifting plate (23) is provided with the inclined strut (24), the air blowing column (25) is arranged at the lower end of the inclined strut (24), and the connecting channel (231) and the inclined strut (24) are hollow inside and used for air to pass through; a fine hole is formed in the side of the air blowing column (25), a prismatic vertical groove is formed in the side face of the air blowing column (25), and the cross section of the air blowing column (25) is in a double-dovetail shape; the stepping motor (26) is arranged above the guide frame (21); the air inlet seat (28) is arranged at the lower end of the guide frame (21), the control cylinder (29) is arranged at the upper end of the air inlet seat (28), and the telescopic end of the control cylinder (29) is provided with a blocking sheet (291); the air suction frame (210) is fixed on the frame, a coherent pipeline is arranged inside the air suction frame (210), two material placing rectangular holes (211) are formed in the middle of the air suction frame (210), the material placing rectangular holes (211) are located right below the air blowing column (25), and a row of air suction holes are formed in the periphery of each material placing rectangular hole (211) to suck a packaging bag.
9. A plastic bag packing apparatus according to claim 6 or 8, wherein a rounded chamfer (232) is provided at the corner of the lower end of the connecting channel (231) and the air inlet seat (28), and the side surface of the connecting channel (231) is closely attached to the side surface of the air inlet seat (28).
10. The plastic bag packaging apparatus according to claim 6 or 8, wherein the timing belt assembly (27) comprises an upper and a lower timing wheels, and a timing belt wound around the two timing wheels, the timing belt assembly (27) is connected to the upper and the lower ends of the guide frame (21), and the shaft end of the stepping motor (26) is fixed to one timing wheel of the timing belt assembly (27); a vertical groove is formed in the middle of the air inlet seat (28), the blocking piece (291) is matched in the vertical groove, a horizontal vent groove is formed in the air inlet seat (28), and the blocking piece (291) descends to block the vent groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110766509.7A CN113525793A (en) | 2021-07-07 | 2021-07-07 | Plastic bag sealing device and method and packaging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110766509.7A CN113525793A (en) | 2021-07-07 | 2021-07-07 | Plastic bag sealing device and method and packaging equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113525793A true CN113525793A (en) | 2021-10-22 |
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| CN202110766509.7A Withdrawn CN113525793A (en) | 2021-07-07 | 2021-07-07 | Plastic bag sealing device and method and packaging equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044178A (en) * | 2021-12-12 | 2022-02-15 | 湖南创益鑫科技有限公司 | Aftertreatment equipment for plastic particles |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044178A (en) * | 2021-12-12 | 2022-02-15 | 湖南创益鑫科技有限公司 | Aftertreatment equipment for plastic particles |
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Application publication date: 20211022 |