CN113291541B - Novel strip-shaped packaging bag vacuum forming packaging machine - Google Patents

Novel strip-shaped packaging bag vacuum forming packaging machine Download PDF

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Publication number
CN113291541B
CN113291541B CN202110620527.4A CN202110620527A CN113291541B CN 113291541 B CN113291541 B CN 113291541B CN 202110620527 A CN202110620527 A CN 202110620527A CN 113291541 B CN113291541 B CN 113291541B
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China
Prior art keywords
packaging
groove
strip
pressing plate
guide rail
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CN113291541A (en
Inventor
徐卓
陈琛
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Wuchang University of Technology
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Wuchang University of Technology
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Priority to CN202110620527.4A priority Critical patent/CN113291541B/en
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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
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/06—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
    • 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
    • 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
    • B65B61/10—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 using heated wires or cutters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)

Abstract

The invention discloses a novel strip-shaped packaging bag vacuum forming packaging machine which comprises a base, wherein the center of the base is a semi-cylindrical packaging groove, adsorption guide rail assemblies are symmetrically arranged on two sides of the packaging groove, and the adsorption guide rail assemblies can drive a sucker facing the center direction of the packaging groove to move; two symmetrical feeding rollers are arranged at one end of the packaging groove, the feeding rollers are mutually attached and can be driven by a motor to rotate in opposite directions, a hot melting cutting device is further arranged between the feeding rollers and the end face of the packaging groove, one side of the hot melting cutting device, which is close to the feeding rollers, is a cutter, and the other side of the hot melting cutting device is a hot melting device; one end of the packaging groove, which is far away from the feeding roller, is provided with a hot-melt sealing assembly, and a vacuum extraction assembly is arranged in the base on one side of the hot-melt sealing assembly. Compared with the prior art, the invention can continuously and rapidly sleeve the strip-shaped object with the packaging bag and carry out vacuum forming, has high working efficiency, good universality of the used packaging bag and low cost.

Description

Novel strip-shaped packaging bag vacuum forming packaging machine
Technical Field
The invention relates to the technical field of packaging equipment, in particular to a novel strip-shaped packaging bag vacuum forming packaging machine.
Background
In social production, in order to prolong the shelf life of the goods or facilitate transportation, the goods are generally in the form of vacuum packaging. Vacuum packaging machines can automatically pump air out of a packaging bag, sealing procedures are completed after a preset vacuum degree is reached, the vacuum packaging machines are often used in the food industry, and food can resist oxidation after being vacuum packaged, so that the purpose of long-term storage is achieved.
When the vacuum-pumping step is carried out, the existing packaging bag vacuum forming packaging machine places a packaging bag loaded with articles in a vacuum cavity, so that the opening of the packaging bag is placed on a heating sealing strip, a vacuum cover plate is covered, and a vacuum-pumping device arranged in a machine body is started to vacuumize and seal the packaging bag loaded with articles.
Before the vacuum is pumped, the packaging bag needs to be opened manually or by other equipment, and objects are put into the packaging bag, so that the efficiency is low, and the production cost is high. Moreover, due to the volume limitation of the vacuum cavity, the existing vacuum packaging machine is suitable for square packaging bags and strip-shaped packaging bags, and strip-shaped objects can only be packaged by a large-scale packaging machine, so that the equipment cost is high, and unnecessary waste is caused.
In addition, the strip-shaped package needs to be customized according to the length of the packaged object for packaging, the customization cost is high, objects with different lengths cannot be used universally, and the inaccurate quantity budget for customization easily causes waste or shortage of goods.
Therefore, there is a need for a new vacuum forming and packaging machine for strip-shaped packaging bags to solve the above problems in the background art.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a novel strip-shaped packaging bag vacuum forming packaging machine comprises a base, wherein the center of the base is a semi-cylindrical packaging groove, adsorption guide rail assemblies are symmetrically arranged on two sides of the packaging groove, and the adsorption guide rail assemblies can drive a sucker facing the center direction of the packaging groove to move;
two symmetrical feeding rollers are arranged at one end of the packaging groove, the feeding rollers are mutually attached and can be driven by a motor to rotate in opposite directions, a hot melting cutting device is further arranged between the feeding rollers and the end face of the packaging groove, one side of the hot melting cutting device, which is close to the feeding rollers, is provided with a cutter, and the other side of the hot melting cutting device is provided with a hot melting device;
one end of the packaging groove, which is far away from the feeding roller, is provided with a hot-melt sealing assembly, and a vacuum extraction assembly is arranged in the base on one side of the hot-melt sealing assembly.
Further, preferably, the adsorption guide rail assembly comprises a guide rail and a sliding table, the guide rail is fixed in the base on one side of the packaging groove, the sliding table is slidably arranged in the guide rail, a rotating arm is rotatably arranged on the sliding table, the rotating arm is hinged with a sucker facing the center direction of the packaging groove, and the sucker is connected into the negative pressure pump;
and a driving device capable of driving the sliding table to slide in the guide rail is arranged in the sliding table.
Further, as preferred, the adsorption guide rail assembly further comprises a guide shaft, the guide shaft is connected with one side, away from the packaging groove, of the two ends of the guide rail through a transverse sliding groove, a linear bearing is sleeved in the guide shaft, a connecting rod is fixedly connected to the linear bearing, and the tail end of the connecting rod is rotatably connected with one end, away from the sucker, of the rotating arm.
Further, as preferred, horizontal spout and guide rail looks vertical fixation are at its both ends, open the logical groove in the horizontal spout, the guiding axle is connected with horizontal spout slidable through the tight pin of establishing at its both ends of cover, and can be tightly decided through tight pin and horizontal spout, guiding axle.
Further, as a preferred option, the rotating arm is an arc-shaped long strip, an arc-shaped groove is formed in a section of the rotating arm close to the connecting rod, the connecting rod is rotatably connected with the connecting rod through a fastening pin, and the connecting position of the connecting rod in the arc-shaped groove can be adjusted.
Further, preferably, the hot-melting sealing assembly comprises a portal frame, the portal frame is erected on two sides of one end, away from the feeding roller, of the packaging groove, two sliding shafts are arranged in the portal frame in a vertically sliding manner, the lower ends of the sliding shafts are connected with an upper pressing plate and a lower pressing plate respectively at intervals, a sealing rubber strip is fixed below the lower pressing plate, and the sealing rubber strip consists of two sections of parallel soft rubber strips;
and a lower sealing strip is fixed in the base at the corresponding position below the sealing rubber strip.
Further, preferably, the upper pressure plate is slidably connected with the sliding shaft, two inner sliding rods are fixed below the upper pressure plate, and the inner sliding rods penetrate through the lower pressure plate and are slidably connected with the lower pressure plate;
the hot-melting pressing strips are fixed in the part of the inner sliding rod below the lower pressing plate and are arranged among the sealing rubber strips at intervals;
the two inner slide bars are fixed on the middle bar together at the part between the upper pressure plate and the lower pressure plate.
Preferably, a buffer spring is sleeved on the sliding shaft between the upper pressing plate and the lower pressing plate, and when the buffer spring is in a natural state, the position of the hot-melting pressing strip is higher than the bottom of the sealing rubber strip.
Further, preferably, a first air cylinder is connected between the upper pressure plate and the gantry, and a second air cylinder is connected between the upper pressure plate and the middle rod.
Further, preferably, the vacuum extraction assembly comprises a turntable, the turntable is rotatably connected with the base, and a motor capable of driving the turntable to rotate is arranged in the base;
a rotating rod is fixed on the rotating disc, a vacuum valve is fixed at one end of the rotating rod, which is far away from the rotating disc, and the vacuum valve is connected with a negative pressure pump;
the output end of the vacuum valve is an air exhaust tongue with a flat opening, the bottom of the air exhaust tongue is tangent to the top of the lower sealing strip, and when the rotary table rotates to the position where the air exhaust tongue enters the upper portion of the lower sealing strip, the air exhaust tongue is perpendicular to the lower sealing strip.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the sliding table drives the sucker to move to the direction close to the feeding roller, absorbs two sides of the packaging bag from a certain distance behind the opening of the packaging bag, moves towards the direction of the hot melt sealing assembly, and can quickly draw out and stretch the packaging bag roll;
moreover, the guide shaft and the guide rail are adjusted to incline at a certain angle by the fastening pin in advance, when the sliding table moves from the direction of the feed roller to the direction of the hot melting sealing assembly, the connecting rod pushes the rotating arm to rotate, so that the distance between the two suckers can be gradually increased, the packaging bag roll adsorbed on the sucker can be unfolded, and a packaged object can conveniently enter the packaging bag;
the invention can continuously and rapidly sleeve the strip-shaped object with the packaging bag and carry out vacuum forming, has high working efficiency, good universality of the used packaging bag and low cost.
Drawings
FIG. 1 is a schematic structural view of a novel strip-shaped packaging bag vacuum forming and packaging machine;
FIG. 2 is a schematic structural view of an adsorption guide rail assembly of a novel strip-shaped packaging bag vacuum forming packaging machine;
FIG. 3 is a schematic view of a hot melt sealing assembly of a novel vacuum forming and packaging machine for strip-shaped packaging bags;
FIG. 4 is a schematic view of a vacuum drawing assembly of a novel vacuum forming and packaging machine for strip-shaped packaging bags;
in the figure: 1. a base; 2. a packaging groove; 3. adsorbing the guide rail assembly; 4. a feed roller; 5. a hot melt cutting device; 6. A hot melt seal assembly; 7. a vacuum extraction assembly; 8. a suction cup; 9. a lower sealing strip; 31. a guide rail; 32. a sliding table; 33. a rotating arm; 331. an arc-shaped slot; 34. a horizontal chute; 35. fastening the pin; 36. a guide shaft; 37. A linear bearing; 38. a connecting rod; 61. a gantry; 62. a sliding shaft; 63. an upper pressure plate; 64. a lower pressing plate; 65. a buffer spring; 66. an inner slide bar; 67. a middle rod; 68. sealing rubber strips; 69. hot melting and pressing strips; 610. A first cylinder; 611. a second air cylinder; 71. a turntable; 72. a rotating rod; 73. a vacuum valve; 74. the tongue is deflated.
Detailed Description
Referring to fig. 1, in the embodiment of the present invention, a novel strip-shaped packaging bag vacuum forming packaging machine includes a base 1, a semi-cylindrical packaging groove 2 is formed in the center of the base 1, adsorption guide rail assemblies 3 are symmetrically disposed on two sides of the packaging groove 2, and the adsorption guide rail assemblies 3 can drive a suction cup 8 facing the center direction of the packaging groove 2 to move;
two symmetrical feeding rollers 4 are arranged at one end of the packaging groove 2, the feeding rollers 4 are mutually attached and can be driven by a motor to rotate in opposite directions, a long-strip-shaped packaging bag roll can be driven to pass through the feeding rollers 4, a hot melting cutting device 5 is further arranged between the feeding rollers 4 and the end face of the packaging groove 2, one side, close to the feeding rollers 4, of the hot melting cutting device 5 is a cutter, the other side of the hot melting cutting device is a hot melting device, the tail portion of the packaging bag roll in the previous section can be sealed while the packaging bag roll is cut off, and therefore the tail portion of the packaging bag roll in the previous section is not described in detail in the prior art;
one end of the packaging groove 2, which is far away from the feeding roller 4, is provided with a hot melt sealing assembly 6, and a vacuum extraction assembly 7 is arranged in the base 1 on one side of the hot melt sealing assembly 6.
Referring to fig. 2, in the present embodiment, the suction rail assembly 3 includes a rail 31 and a sliding table 32, the rail 31 is fixed in the base 1 on one side of the packaging groove 2, the sliding table 32 is slidably disposed in the rail 31, a rotating arm 33 is rotatably disposed on the sliding table 32, the rotating arm 33 is hinged with a suction cup 8 facing the center direction of the packaging groove 2, and the suction cup 8 is connected to a negative pressure pump;
the slide table 32 is provided therein with a driving device capable of driving the slide table to slide in the guide rail 31.
In this embodiment, the absorption guide rail assembly 3 further includes a guide shaft 36, the guide shaft 36 is connected with one side of the two ends of the guide rail 31 far away from the packaging groove 2 through the horizontal sliding groove 34, a linear bearing 37 is sleeved in the guide shaft 36, a connecting rod 38 is fixedly connected in the linear bearing 37, and the tail end of the connecting rod 38 is rotatably connected with one end of the rotating arm 33 far away from the suction cup 8.
In this embodiment, the transverse sliding groove 34 and the guide rail 31 are vertically fixed at two ends thereof, a through groove is formed in the transverse sliding groove 34, the guide shaft 36 is slidably connected with the transverse sliding groove 34 through a fastening pin 35 sleeved at two ends thereof, and can be fastened with the transverse sliding groove 34 and the guide shaft 36 through the fastening pin 35;
that is, when the guiding shaft 36 is adjusted to incline to a certain angle with the guiding rail 31, and the sliding table 32 moves from the direction of the feeding roller 4 to the direction of the hot melt sealing assembly 6, the connecting rod 38 pushes the rotating arm 33 to rotate, so that the distance between the two suction cups 8 can be gradually increased to open the opening of the packaging bag roll adsorbed thereon, and the packaged object can conveniently enter the packaging bag.
In this embodiment, the rotating arm 33 is an arc-shaped long strip, an arc-shaped groove 331 is formed in a section of the rotating arm close to the connecting rod 38, the connecting rod 38 is rotatably connected with the connecting rod 38 through a fastening pin, the position of the connecting rod 38 connected in the arc-shaped groove 331 can be adjusted, and the distance between the suction cup 8 at the initial position can be adjusted by changing the position of the connecting rod 38 connected in the arc-shaped groove 331, so that the rotating arm is suitable for being rolled with different packaging bags, and the accurate absorption of the rotating arm to two sides of the packaging bag is ensured.
Referring to fig. 3, in the present embodiment, the hot-melt sealing assembly 6 includes a portal frame 61, the portal frame 61 is erected on two sides of one end of the packaging groove 2 away from the feeding roller 4, two sliding shafts 62 are slidably arranged in the portal frame, the lower ends of the sliding shafts 62 are respectively connected with an upper pressing plate 63 and a lower pressing plate 64 at a certain distance, a sealing rubber strip 68 is fixed below the lower pressing plate 64, and the sealing rubber strip 68 is composed of two parallel soft rubber strips;
a lower sealing strip 9 is fixed in the base 1 at a corresponding position below the sealing rubber strip 68.
In this embodiment, the upper platen 63 is slidably connected to the sliding shaft 62, two inner sliding rods 66 are fixed under the upper platen 63, and the inner sliding rods 66 penetrate through the lower platen 64 and are slidably connected thereto;
a hot-melting pressing strip 69 is fixed in the part of the inner sliding rod 66 below the lower pressing plate 64, and the hot-melting pressing strips 69 are arranged between the sealing rubber strips 68 at intervals;
the two inner sliding rods 66 are jointly fixed on a middle rod 67 at the part between the upper pressing plate 63 and the lower pressing plate 64.
In this embodiment, a buffer spring 65 is sleeved on the sliding shaft 62 between the upper pressing plate 63 and the lower pressing plate 64, and when the buffer spring 65 is in a natural state, the position of the hot-melt pressing strip 69 is higher than the bottom of the sealing rubber strip 68.
In this embodiment, a first air cylinder 610 is connected between the upper pressing plate 63 and the gantry 61, and a second air cylinder 611 is connected between the upper pressing plate 63 and the middle rod 67;
that is, the first air cylinder 610 can drive the sliding shaft 62, the upper pressing plate 63 and the lower pressing plate 64 to press downwards together, so that the sealing rubber strip 68 and the lower sealing strip 9 are pressed against the opening of the packaging bag, and the packaging bag is sealed;
after the vacuum pumping is completed, the first air cylinder 610 extends and the second air cylinder 611 contracts, so that the upper pressing plate 63 is driven to compress the buffer spring 65, and the hot melt pressing strip 69 moves downwards to seal and close the opening of the packaging bag.
In this embodiment, the vacuum pumping assembly 7 includes a rotary disc 71, the rotary disc 71 is rotatably connected to the base 1, and a motor capable of driving the rotary disc to rotate is disposed in the base 1;
a rotating rod 72 is fixed on the rotating disk 71, a vacuum valve 73 is fixed at one end of the rotating rod 72, which is far away from the rotating disk 71, and the vacuum valve 73 is connected with a negative pressure pump;
the output end of the vacuum valve 73 is a flat-opening air exhaust tongue 74, the bottom of the air exhaust tongue 74 is tangent to the top of the lower sealing strip 9, and when the rotary table 71 rotates to the position where the air exhaust tongue 74 enters the upper portion of the lower sealing strip 9, the air exhaust tongue 74 is perpendicular to the lower sealing strip 9.
In specific implementation, one end of a continuous cylindrical packaging bag wound into a roll passes through a feeding roller 4, and the feeding roller 4 continuously conveys the packaging bag forwards through rotation;
the sliding table 32 drives the sucker 8 to move to the direction close to the feeding roller 4, adsorbs two sides of the packaging bag from a certain distance behind the opening of the packaging bag and moves towards the hot melt sealing assembly 6;
when the sliding table 32 moves from the direction of the feed roller 4 to the direction of the hot melt sealing assembly 6, the connecting rod 38 pushes the rotating arm 33 to rotate, so that the distance between the two suction cups 8 is gradually increased, the packaging bag roll adsorbed on the sliding table is opened, the packaged object can conveniently enter the packaging bag, and when the sliding table moves to the rearmost end, the opening of the packaging bag crosses over the position of the lower sealing strip 9;
starting a hot melting cutting device 5, wherein a cutter is arranged on one side of the hot melting cutting device 5 close to the feeding roller 4, and a hot melting device is arranged on the other side of the hot melting cutting device 5, so that the tail part of the previous section of packaging bag roll can be sealed while the packaging bag roll is cut off;
after the packaged object is put into the packaging bag from the opening of the packaging bag, the air exhaust tongue 74 is rotated to a position beyond the lower sealing strip 9 by the rotating turntable 71 and enters the packaging bag;
the first air cylinder 610 can drive the sliding shaft 62, the upper pressing plate 63 and the lower pressing plate 64 to press downwards together, so that the sealing rubber strip 68 and the lower sealing strip 9 press the opening and the air suction tongue 74 of the packaging bag to seal the packaging bag;
the vacuum valve 73 is opened, after vacuum pumping is finished, the rotary table 71 is rotated to pump out the pumping tongue 74, the air cylinder I610 extends and the air cylinder II 611 contracts, the upper pressing plate 63 is driven to compress the buffer spring 65, and therefore the hot-melt pressing strip 69 moves downwards to seal and close the opening of the packaging bag;
after the first air cylinder 610 and the second air cylinder 611 return to the initial state, the object after vacuum packaging forming is taken away, and the feeding roller 4 conveys the next section of packaging bag to carry out the next vacuum packaging;
the vacuum forming device can continuously and periodically complete vacuum forming, so that objects to be packaged can be placed and taken away by the conveying and transplanting device, and the vacuum forming device can participate in an automatic production line.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (6)

1. A vacuum forming packaging machine for strip-shaped packaging bags comprises a base (1) and is characterized in that the center of the base (1) is a semi-cylindrical packaging groove (2), adsorption guide rail assemblies (3) are symmetrically arranged on two sides of the packaging groove (2), and the adsorption guide rail assemblies (3) can drive a sucker (8) towards the center direction of the packaging groove (2) to move;
two symmetrical feeding rollers (4) are arranged at one end of the packaging groove (2), the feeding rollers (4) are mutually attached and can rotate in opposite directions under the drive of a motor, a hot melting cutting device (5) is further arranged between the feeding rollers (4) and the end face of the packaging groove (2), one side, close to the feeding rollers (4), of the hot melting cutting device (5) is provided with a cutter, and the other side of the hot melting cutting device is provided with a hot melting device;
one end of the packaging groove (2) far away from the feeding roller (4) is provided with a hot melting sealing assembly (6), and a vacuum extraction assembly (7) is arranged in the base (1) on one side of the hot melting sealing assembly (6);
the adsorption guide rail assembly (3) comprises a guide rail (31) and a sliding table (32), the guide rail (31) is fixed in the base (1) on one side of the packaging groove (2), the sliding table (32) is slidably arranged in the guide rail (31), a rotating arm (33) is rotatably arranged on the sliding table (32), the rotating arm (33) is hinged with a sucker (8) towards the center direction of the packaging groove (2), and the sucker (8) is connected into a negative pressure pump;
a driving device capable of driving the sliding table (32) to slide in the guide rail (31) is arranged in the sliding table;
the adsorption guide rail assembly (3) further comprises a guide shaft (36), the guide shaft (36) is connected with one side, away from the packaging groove (2), of the two ends of the guide rail (31) through a transverse sliding groove (34), a linear bearing (37) is sleeved in the guide shaft (36), a connecting rod (38) is fixedly connected in the linear bearing (37), and the tail end of the connecting rod (38) is rotatably connected with one end, away from the sucker (8), of the rotating arm (33);
the transverse sliding groove (34) and the guide rail (31) are vertically fixed at two ends of the transverse sliding groove, a through groove is formed in the transverse sliding groove (34), the guide shaft (36) is slidably connected with the transverse sliding groove (34) through a fastening pin (35) sleeved at two ends of the guide shaft, and can be fastened with the transverse sliding groove (34) and the guide shaft (36) through the fastening pin (35);
the rotating arm (33) is arc-shaped long strip, an arc-shaped groove (331) is formed in one section of the rotating arm, which is close to the connecting rod (38), the connecting rod (38) is rotatably connected with the connecting rod through a fastening pin, and the position of the connecting rod (38) connected in the arc-shaped groove (331) can be adjusted.
2. The vacuum forming and packaging machine for the strip-shaped packaging bags according to claim 1, characterized in that the hot-melt sealing assembly (6) comprises a portal frame (61), the portal frame (61) is erected on two sides of one end of the packaging groove (2) far away from the feeding roller (4), two sliding shafts (62) are arranged in the portal frame in a vertically sliding manner, the lower ends of the sliding shafts (62) are respectively connected with an upper pressing plate (63) and a lower pressing plate (64) at a certain interval, a sealing rubber strip (68) is fixed below the lower pressing plate (64), and the sealing rubber strip (68) consists of two sections of parallel soft rubber strips;
and a lower sealing strip (9) is fixed in the base (1) at a corresponding position below the sealing rubber strip (68).
3. The vacuum forming and packaging machine for the strip-shaped packaging bags according to claim 2, characterized in that the upper pressing plate (63) is slidably connected with the sliding shaft (62), two inner sliding rods (66) are fixed under the upper pressing plate (63), and the inner sliding rods (66) penetrate through the lower pressing plate (64) and are slidably connected with the lower pressing plate;
hot melting pressing strips (69) are fixed in the part of the inner sliding rod (66) below the lower pressing plate (64), and the hot melting pressing strips (69) are arranged among the sealing rubber strips (68) at intervals;
the two inner sliding rods (66) are jointly fixed on the middle rod (67) at the part between the upper pressing plate (63) and the lower pressing plate (64).
4. The vacuum forming and packaging machine for the strip-shaped packaging bags according to claim 2, characterized in that a buffer spring (65) is sleeved on the sliding shaft (62) between the upper pressing plate (63) and the lower pressing plate (64), and when the buffer spring (65) is in a natural state, the position of the hot-melting pressing strip (69) is higher than the bottom of the sealing rubber strip (68).
5. The vacuum forming and packaging machine for the strip-shaped packaging bags according to claim 4, wherein a first air cylinder (610) is connected between the upper pressing plate (63) and the portal frame (61), and a second air cylinder (611) is connected between the upper pressing plate (63) and the middle rod (67).
6. The strip packaging bag vacuum forming and packaging machine as claimed in claim 1, characterized in that the vacuum drawing assembly (7) comprises a turntable (71), the turntable (71) is rotatably connected with the base (1), and a motor capable of driving the base (1) to rotate is arranged in the base (1);
a rotating rod (72) is fixed on the rotating disk (71), a vacuum valve (73) is fixed at one end, far away from the rotating disk (71), of the rotating rod (72), and the vacuum valve (73) is connected with a negative pressure pump;
the output end of the vacuum valve (73) is an air-pumping tongue (74) with a flat opening, the bottom of the air-pumping tongue (74) is tangent to the top of the lower sealing strip (9), and when the turntable (71) rotates to the position where the air-pumping tongue (74) enters the upper part of the lower sealing strip (9), the air-pumping tongue (74) is vertical to the lower sealing strip (9).
CN202110620527.4A 2021-06-03 2021-06-03 Novel strip-shaped packaging bag vacuum forming packaging machine Active CN113291541B (en)

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CN202110620527.4A CN113291541B (en) 2021-06-03 2021-06-03 Novel strip-shaped packaging bag vacuum forming packaging machine

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CN113291541B true CN113291541B (en) 2022-08-19

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