CN117360896B - Food packaging bag sealing device and method - Google Patents
Food packaging bag sealing device and method Download PDFInfo
- Publication number
- CN117360896B CN117360896B CN202311675753.8A CN202311675753A CN117360896B CN 117360896 B CN117360896 B CN 117360896B CN 202311675753 A CN202311675753 A CN 202311675753A CN 117360896 B CN117360896 B CN 117360896B
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- heat sealing
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- food packaging
- sealing
- packaging bag
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- 238000007789 sealing Methods 0.000 title claims abstract description 233
- 235000013305 food Nutrition 0.000 title claims abstract description 121
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 239000002184 metal Substances 0.000 claims description 35
- 239000000779 smoke Substances 0.000 claims description 32
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000002829 reductive effect Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000020169 heat generation Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
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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
-
- 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
- B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
-
- 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
- B65B61/28—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for discharging completed packages from machines
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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
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
-
- 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
- B65B2051/105—Heat seal temperature control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Package Closures (AREA)
Abstract
The invention discloses a food packaging bag sealing device and method, and relates to the technical field of packaging equipment. According to the food packaging bag sealing device and the method, the proper number of heat sealing units are selected for adjustment according to the width of the packaging bag to be sealed, and flexible adjustment can be performed according to the food packaging bags with different widths; the heat sealing unit is not adjusted, the current is not connected inside, heat generation is avoided, the purpose of reducing electric energy consumption is achieved, electric energy cost expenditure is saved, synchronous rotation of the turntable mechanism and the heat sealing mechanism can be achieved by only arranging one servo motor as a driving source, the cost for arranging a plurality of driving devices is saved, the turntable mechanism is arranged, the food packaging bag to be sealed can be continuously conveyed, sealing operation can be automatically completed after the food packaging bag passes through the heat sealing mechanism, the automation degree is high, the sealing efficiency of the food packaging bag is improved, and the labor input cost is reduced.
Description
Technical Field
The invention relates to the technical field of packaging equipment, in particular to a food packaging bag sealing device and a method.
Background
Since food packaging bags are mostly made of plastic materials, in the process of heat sealing the food packaging bag, the sealing position can be melted due to high temperature, and slight smoke is generated at the same time, if a low-quality packaging bag is used or the heat sealing temperature is too high, more smoke can be generated, harmful substances such as formaldehyde are contained in the smoke, and the harmful substances can cause potential food safety risks by being inhaled or attached to the surface of food.
At the instant of sealing, the food packaging bag is slow in air circulation, and the smoke does not have a fixed flowing direction, so that part of the smoke can enter the packaging bag at a gap where the packaging bag is completely sealed. In general, the effect of these fumes on the food inside the bag can be neglected. However, for infants, the bodies of the infants are not developed completely, the infants are sensitive to various components in food, and even if the food in the packaging bag is influenced by a small amount of smoke, the infants are greatly injured by long-term eating of the food polluted by the plastic smoke.
Referring to the automatic sealing equipment of the food packaging bag with the Chinese patent publication number of CN112389766A, a clamping block can be quickly inserted into a positioning groove by utilizing the repulsive force between a first magnetic block and a second magnetic block with the same name, so that a telescopic rod can be stably installed in a movable barrel. Through removing the baffle towards the direction of hot shrouding for L shape push rod drives the briquetting and acts on the inclined plane chamber, makes the repulsion effect that the movable block overcome between first magnetic path and the second magnetic path of the same name drive the fixture block and breaks away from in the constant head tank, makes the telescopic link can normally slide in moving a section of thick bamboo, thereby is convenient for adjust the position of hot shrouding, with this adaptation different positions of sealing. Through all being provided with a set of subassembly that seals about U shape mounting bracket both ends, can seal the operation to the wrapping bag simultaneously from two directions, improved sealed efficiency and quality degree.
Referring to a sealing device for food packaging bags of Chinese patent publication No. CN211943985U, by being provided with a guide block and a sealing device, a hydraulic lifter is started to enable the guide block to move downwards, so that a first triangular block moves downwards, and accordingly, the first triangular block moves downwards to drive a second triangular block to move inwards, so that an I-shaped block moves inwards, and after two I-shaped blocks are clamped, the food packaging bags are sealed by an electric heating strip, so that an automatic sealing effect is achieved. Through the arrangement of the springs, when the hydraulic lifter drives the guide block to move upwards, the two I-shaped blocks are separated under the action of resilience force of the springs, so that the next packaging bag needing to be sealed is conveniently sealed.
The above patents were analyzed comprehensively to obtain the following drawbacks:
at present, the sealing position of the food packaging bag is melted at high temperature to generate plastic smog, and the dispersed plastic smog easily enters the inside of the food packaging bag at a complete sealing gap of the food packaging bag and adheres to the surface of food, so that food is polluted, and the plastic smog scattered around the sealing device can enter the unsealed food packaging bag, so that the pollution range is further enlarged, and the safety risk of food is increased. For example, referring to an automatic sealing device for food packaging bags with Chinese patent publication No. CN112389766A, only a single sealing operation can be performed on the food packaging bags, and harmful plastic smoke generated in the sealing process cannot be effectively treated, so that safe packaging of food is ensured, and harm is caused to human bodies of people with high requirements on food quality, such as infants.
The existing food package sealing device cannot adjust the self heat sealing range according to the sealing width of the food package, and can only use the heat sealing head with fixed length to finish the sealing operation, so that the heat source waste in the heat sealing head area which does not participate in the sealing operation is easily caused in the sealing operation of the food package with smaller width. For example, referring to a sealing device for food packaging bags with chinese patent publication No. CN211943985U, the heat sealing range of the sealing device cannot be adjusted, and only the sealing device can be always kept at a fixed heat sealing width, thereby causing energy waste.
Therefore, the present invention provides a sealing device and a sealing method for food packaging bags to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the food packaging bag sealing device and the method, which solve the problems that plastic smoke generated by sealing the food packaging bag at present easily enters the inside of the food packaging bag at a complete sealing gap of the food packaging bag and adheres to the surface of the food packaging bag, so that food is polluted, the plastic smoke scattered around the sealing device can enter the unsealed food packaging bag, the pollution range is further enlarged, the safety risk of food is increased, the food packaging sealing device cannot adjust the self heat sealing range according to the sealing width of the food packaging bag, and only a heat sealing head with fixed length can be used for sealing operation, so that the heat source waste of the heat sealing head region which does not participate in the sealing operation is easily caused in the sealing operation of the food packaging bag with smaller width.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a food package closing device, includes the operation panel, the top rotation of operation panel is provided with the carousel mechanism that is used for carrying the food package that waits to seal, a plurality of lifting assembly that are used for placing the food package that waits to seal that are evenly provided with in top a week of carousel mechanism, the inside power unit that is used for driving carousel mechanism pivoted that is provided with of operation panel includes servo motor and fixed connection at its epaxial gear, the below fixedly connected with that just is located carousel mechanism is used for promoting the lifting assembly and takes place the kicking block of upset action, the top of operation panel just is located the deflector of the dead ahead fixedly connected with of kicking block for carrying the completion sealed food package, fixedly connected with L shape frame in the position that the deflector was kept away from at the operation panel top, the equal fixedly connected with curb plate in L shape frame bottom both sides, two jointly rotate on the opposite lateral wall of curb plate and be connected with the heat-seal mechanism that is used for food package to seal.
The heat sealing mechanism comprises a transmission shaft which is rotationally connected to the opposite side walls of the two side plates, one end of the transmission shaft rotationally penetrates through one side plate and is fixedly connected with a worm wheel, and a plurality of sealing assemblies used for heat sealing food packaging bags are uniformly arranged on the outer wall of the transmission shaft.
The sealing assembly comprises a square cylinder fixedly connected to the outer wall of the transmission shaft and a power supply assembly fixedly connected to the inner wall of the square cylinder, a plurality of heat sealing units are uniformly arranged in the power supply assembly, one end of each heat sealing unit, far away from the power supply assembly, extends to the outer part of the square cylinder, and a plurality of second marking blocks which correspond to the positions of the heat sealing units one by one are uniformly and fixedly connected to the outer wall of the square cylinder.
The heat sealing unit comprises a first heat sealing head, a purification assembly fixedly connected to the side wall of the square cylinder and a second heat sealing head arranged at the bottom end of the first heat sealing head, an electric heating wire is fixedly connected to one side of the inside of the second heat sealing head, a first metal conducting rod and a second metal conducting rod are fixedly connected to two ends of the electric heating wire respectively, insulating sleeves are fixedly sleeved on the outer walls of the parts, close to the first heat sealing head, of the first metal conducting rod and the second metal conducting rod, insulating plates are fixedly connected to the top ends of the first metal conducting rod and the second metal conducting rod together, second springs are fixedly connected to the outer walls, close to the first heat sealing head, of the insulating plates, wedge-shaped grooves are formed in the side walls, opposite to the second springs, of the insulating plates, and driving assemblies for controlling the heat sealing head to move downwards or upwards are connected to the inner sliding parts of the wedge-shaped grooves.
The driving assembly comprises a wedge block which is slidably connected in the wedge groove, a screw is rotationally connected to the outer wall of the wedge block, a knob is fixedly connected to one end, away from the wedge block, of the screw, and a first marking block corresponding to the second marking block in position is fixedly connected to the outer wall of the knob.
The purification assembly comprises a cylinder body fixedly connected to the outer wall of the square cylinder, the two sides of the outer wall of the cylinder body close to the second heat seal head are fixedly connected with an air inlet pipe used for sucking plastic smoke, a first one-way valve used for allowing air to enter is fixedly arranged inside the air inlet pipe, an exhaust pipe used for exhausting air is fixedly connected to the side wall of the cylinder body, a purification cylinder used for purifying the plastic smoke is fixedly connected to the inside of the exhaust pipe, a second one-way valve used for allowing air to be exhausted is fixedly connected to one side of the purification cylinder, a piston plate is connected to the inside of the cylinder body in a sliding mode, a push rod is fixedly connected to the outer wall of the piston plate, one end of the push rod, far away from the piston plate, is in sliding connection with the cylinder body and the second outer wall of the heat seal head, the second heat seal head comprises an arc heat seal plate and guide posts fixedly connected to the four corners of the side wall of the arc heat seal plate, a plurality of lifting holes corresponding to the positions of the guide posts are formed in the outer wall of the first heat seal head, and the lifting holes are connected to the lifting holes in a sliding mode.
The power supply assembly comprises a bearing plate fixedly connected to the inner wall of the square cylinder, a plurality of groups of positive conductive holes and negative conductive holes uniformly formed in the outer wall of the bearing plate, and positive conductive wires and negative conductive wires fixedly connected to the inner part of the bearing plate, wherein conductive metal plates are fixedly connected to the inner walls of the positive conductive holes and the negative conductive holes, and two adjacent conductive metal plates are respectively electrically connected with the positive conductive wires and the negative conductive wires.
Preferably, the carousel mechanism is including rotating the pivot of connection at the operation panel top and fixed connection at the carousel on pivot top, fixed cover is equipped with the ring gear on the pivot outer wall, the common cover is equipped with tooth belt on ring gear and the gear outer wall, carousel top fixedly connected with and worm that the worm wheel meshing is connected, a plurality of rectangular movable logical grooves with lifting the subassembly position one-to-one have evenly been seted up at the carousel top.
Preferably, the lifting assembly comprises a supporting plate rotatably connected to the top of the turntable and a heat-sealing bearing plate fixedly connected to one side of the top of the supporting plate and used for being matched with the second heat sealing head, and a push rod is fixedly connected to one side of the bottom of the supporting plate.
The invention also provides a sealing method of the food packaging bag sealing device, which comprises the following steps:
step one, adjusting the width of a seal: the heat sealing widths of a plurality of sealing assemblies in the heat sealing mechanism are respectively adjusted according to the width of the food packaging bag to be sealed, so that the heat sealing widths are ensured to be equal to the width of the food packaging bag;
step two, placing food packaging bags: flatly placing the packaging bag filled with the food on the top of the lifting assembly, and ensuring that a region to be sealed at one end of the packaging bag is placed in a heat sealing region defined on the top of the lifting assembly;
step three, heat sealing and preheating preparation: before heat sealing of the food packaging bag, a heating switch of a heat sealing mechanism is started in advance, and the heat sealing mechanism is kept to heat for a certain time to reach a set heat sealing temperature;
step four, heat sealing operation of the packaging bag: starting a servo motor to drive a gear to drive a turntable mechanism to rotate at a low speed at a constant speed, wherein a regular matching relation exists between the rotation degree of the turntable mechanism and the rotation speed of a heat sealing mechanism, and the matching relation ensures that when one of the lifting assemblies rotates to be right below the heat sealing mechanism, one of the sealing assemblies rotates to be right above the lifting assembly, the bottom end of the sealing assembly is contacted with a heat sealing area at the top of the lifting assembly and extrudes the heat sealing area, and simultaneously adsorbs and purifies plastic smoke generated during heat sealing;
step five, automatic bag taking operation: when the lifting assembly loaded with the food packaging bag moves to the position right above the jacking block, the jacking block pushes the lifting assembly to turn over for a certain angle, and the food packaging bag slides from the top of the lifting assembly to the guide plate under the action of self gravity and is output.
Preferably, in the fourth step, the rotation speed of the servo motor is 10 to 20 revolutions per minute, and in the fifth step, the overturning angle of the lifting assembly is fifty degrees.
The invention provides a food packaging bag sealing device and a method. Compared with the prior art, the method has the following beneficial effects:
1. a turntable mechanism for conveying food packaging bags to be sealed is arranged through rotation of the top of an operation table, a plurality of lifting assemblies for placing the food packaging bags to be sealed are uniformly arranged on the periphery of the top of the turntable mechanism, a power mechanism for driving the turntable mechanism to rotate is arranged inside the operation table, the power mechanism comprises a servo motor and a gear fixedly connected to an output shaft of the servo motor, a top block for pushing the lifting assemblies to perform overturning action is fixedly connected to the top of the operation table and below the turntable mechanism, a guide plate for conveying and finishing the sealed food packaging bags is fixedly connected to the top of the operation table and right in front of the top block, L-shaped frames are fixedly connected to the two sides of the bottom of the L-shaped frames, and a heat sealing mechanism for sealing the food packaging bags is jointly connected to the opposite side walls of the two side plates.
2. A sealing device and a method for food packaging bags are provided, a plurality of heat sealing units capable of being independently adjusted are arranged in each sealing assembly, and a proper number of heat sealing units can be selected for adjustment according to the width of the packaging bag to be sealed, so that part of the heat sealing units after adjustment protrude out of other heat sealing units in a square cylinder, and the plurality of protruding heat sealing units are reconstructed into a heat sealing head group matched with the width of the current food packaging bag, thereby meeting the requirement of executing the current sealing width, being capable of being flexibly adjusted according to the food packaging bags with different widths and greatly improving the application range of the sealing assembly; and secondly, the inside of the heat sealing unit which is not regulated is not connected with current, so that heat is not generated, the purpose of reducing the electric energy consumption is realized, the energy is saved, the environment is protected, and meanwhile, the electric energy cost expenditure is saved.
3. The food packaging bag sealing device and the method have the advantages that the purification assembly is arranged, the purpose that the piston is driven to move in the upward moving process of the heat sealing head II heat sealing can be utilized, and the suction force generated by the piston movement can suck the plastic smoke generated in the heat sealing process into the cylinder, so that the directional flow of the plastic smoke is realized, the condition that the plastic smoke flows to the food packaging bag is avoided, and the risk that the plastic smoke enters the food packaging bag to influence the health of the food is avoided; secondly, the motion process of the second thermal head provides power for the reciprocating movement of the piston, so that a power device is not required to be arranged for the piston independently, the cost for arranging the power device is saved, and meanwhile, the structure is simpler, and the subsequent overhaul and maintenance work is convenient; furthermore, through the arrangement of the purifying cylinder, harmful substances in the plastic smoke can be adsorbed when the plastic smoke is discharged, so that the plastic smoke is prevented from dispersing everywhere, and the unpacked food is adversely affected; in addition, the purification assembly is arranged close to the second hot air head, the air inlet pipe can timely and fully capture plastic smoke generated in the heat sealing process, and the plastic smoke is prevented from entering the food packaging bag to the greatest extent.
4. The invention discloses a food packaging bag sealing device and a method, wherein a worm and gear transmission mode is arranged, a heat sealing mechanism is driven to rotate by utilizing power generated when a turntable rotates, and synchronous rotation of the turntable mechanism and the heat sealing mechanism can be realized by only arranging one servo motor as a driving source, so that the cost of arranging a plurality of driving devices is saved, and meanwhile, the structure of the food packaging bag sealing device is simpler and more compact, and is convenient for overhaul and maintenance work of subsequent staff.
5. The food packaging bag sealing device and the method can continuously convey the food packaging bag to be sealed by arranging the turntable mechanism, and the food packaging bag can automatically finish sealing operation after passing through the heat sealing mechanism, so that manual intervention is not needed in the sealing process, the degree of automation is high, the sealing efficiency of the food packaging bag is improved, and the labor input cost is reduced.
Drawings
FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic view of the exploded construction of the present invention;
FIG. 3 is a schematic elevational view of the present invention;
FIG. 4 is a schematic diagram of a turntable mechanism according to the present invention;
FIG. 5 is a schematic view of a first structure of a lifting assembly according to the present invention;
FIG. 6 is a schematic view of a second structure of the lifting assembly of the present invention;
FIG. 7 is a schematic view of an exploded construction of the heat seal mechanism of the present invention;
FIG. 8 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;
FIG. 9 is a schematic cross-sectional view of a closure assembly of the present invention;
FIG. 10 is an enlarged schematic view of the portion B of FIG. 9 according to the present invention;
FIG. 11 is a schematic view of an explosive structure of a heat sealing unit according to the present invention;
FIG. 12 is a schematic view of a thermal head according to the present invention;
FIG. 13 is a schematic view of the internal structure of a thermal head II according to the present invention;
FIG. 14 is a schematic view showing the structure of the first and second heat sealing heads in the exploded state;
FIG. 15 is a schematic view of a purification assembly of the present invention;
FIG. 16 is a schematic cross-sectional view of a decontamination assembly of the present invention;
fig. 17 is a schematic diagram of a power supply assembly according to the present invention.
In the figure: 1. an operation table; 2. a turntable mechanism; 21. a turntable; 22. a rotating shaft; 23. a gear ring; 24. toothed belts; 25. a worm; 26. a strip movable through groove; 3. a lifting assembly; 31. a supporting plate; 32. heat sealing the carrier plate; 33. a push rod; 4. a servo motor; 5. a gear; 6. a top block; 7. a guide plate; 8. an L-shaped frame; 9. a heat sealing mechanism; 91. a transmission shaft; 92. a seal assembly; 921. a square cylinder; 922. a power supply assembly; 9221. a carrying plate; 9222. a positive electrode conductive hole; 9223. a negative electrode conductive hole; 923. a heat-sealing unit; a1, a first heat sealing head; a2, a purifying component; a21, a cylinder; a22, an air inlet pipe; a23, a first one-way valve; a24, an exhaust pipe; a25, purifying the cylinder; a26, a second one-way valve; a27, a piston plate; a28, pushing rod; a3, a heat sealing head II; a31, arc-shaped heat sealing plates; a32, a guide post; a33, a first spring; a4, heating wires; a5, a first metal conducting rod; a6, a second metal conducting rod; a7, insulating sleeves; a8, insulating plates; a9, a second spring; a10, a wedge-shaped groove; a11, wedge-shaped blocks; a12, a screw rod; a13, a first marking block; 924. a second marker block; 93. a worm wheel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 17, the present invention provides three technical solutions: the food package closing device specifically includes following embodiment:
embodiment one: the utility model provides a food package closing device, including operation panel 1, the top rotation of operation panel 1 is provided with the carousel mechanism 2 that is used for carrying the food package that waits to seal, carousel mechanism 2 is including rotating the pivot 22 of connecting at operation panel 1 top and fixed connection at the carousel 21 on pivot 22 top, fixed cover is equipped with ring gear 23 on the pivot 22 outer wall, the common cover is equipped with tooth belt 24 on ring gear 23 and the gear 5 outer wall, carousel 21 top fixedly connected with and worm gear 93 meshing are connected worm 25, a plurality of rectangular movable logical grooves 26 with lifting assembly 3 position one-to-one have evenly been seted up at carousel 21 top, a plurality of lifting assembly 3 that are used for placing the food package that wait to seal are evenly provided with in carousel mechanism 2 top a week, lifting assembly 3 is including rotating the layer board 31 of connecting at carousel 21 top and fixed connection is used for the heat seal loading board 32 of cooperation two a3 at layer board 31 top one side, layer board 31 bottom one side fixedly connected with ejector pin 33. The outer wall that the push rod 33 was kept away from to the layer board 31 is last fixedly connected with pivot, the pivot rotation is offered at carousel 21 top and is connected at the rotation inslot corresponding with pivot position, be provided with the torsional spring between pivot and the rotation inslot, be used for the layer board 31 upset after certain angle reset under torsional spring elasticity effect, push rod 33 sliding connection is in the inside of rectangular movable through groove 26, the inside movable space of rectangular movable through groove 26 is greater than the movable space when push rod 33 overturns, and the circumference radius that forms when push rod 33 rotates equals with the circumference radius that ejector 6 is located, namely, can meet with ejector 6 when push rod 33 rotates, and be jacked by ejector 6, take place the rotation of certain angle. The inside power unit that is used for driving carousel mechanism 2 pivoted that is provided with of operation panel 1, power unit includes servo motor 4 and fixed connection at its epaxial gear 5 of output, fixedly connected with is used for installing servo motor 4's backup pad on the operation panel 1 inner wall, servo motor 4 fixed connection is at the top of backup pad, and servo motor 4's output shaft rotates and runs through operation panel 1 and extend to outside, gear 5 sets up in the top of operation panel 1, operation panel 1 top and the below fixedly connected with that is located carousel mechanism 2 are used for promoting lifting assembly 3 take place the kicking block 6 of upset action, the top of operation panel 1 just is located the locating in the kicking block 6 in the place ahead fixedly connected with and is used for carrying the deflector 7 of accomplishing sealed food package bag, fixedly connected with L shape frame 8 in the position of guide plate 7 is kept away from at operation panel 1 top, equal fixedly connected with curb plate in L shape frame 8 bottom both sides, the joint rotation is connected with the mechanism 9 that is used for the food package bag to seal on the opposite side wall of two curb plates, top one side of operation panel 1 still fixedly is provided with the control box that is used for controlling the operation of all electrical equipment, a plurality of electrical equipment control box internally fixedly installed with a plurality of controllers for controlling different electrical equipment. An access hole is formed in the outer wall, close to the servo motor 4, of the operating platform 1, and a protective door is connected to the inner wall of the access hole through a hinge in a rotating mode. The heat sealing mechanism 9 comprises a transmission shaft 91 rotatably connected to opposite side walls of the two side plates, one end of the transmission shaft 91 rotatably penetrates through one of the side plates and is fixedly connected with a worm gear 93, and a plurality of sealing assemblies 92 for heat sealing food packaging bags are uniformly arranged on the outer wall of the transmission shaft 91.
Embodiment two: the main difference between this embodiment and the first technical solution is that: the sealing assembly 92 comprises a square cylinder 921 fixedly connected to the outer wall of the transmission shaft 91 and a power supply assembly 922 fixedly connected to the inner wall of the square cylinder 921, a plurality of heat sealing units 923 are uniformly arranged in the power supply assembly 922, one end of each heat sealing unit 923, far away from the power supply assembly 922, extends to the outer portion of the square cylinder 921, a plurality of second marking blocks 924 which are in one-to-one correspondence with the positions of the heat sealing units 923 are uniformly fixedly connected to the outer wall of the square cylinder 921, the power supply assembly 922 comprises a bearing plate 9221 fixedly connected to the inner wall of the square cylinder 921, a plurality of groups of positive conductive holes 9222, negative conductive holes 9223 and positive conductive wires and negative conductive wires fixedly connected to the inner wall of the bearing plate 9221, the positive conductive holes 9222 and the negative conductive holes 9223 are fixedly connected to conductive metal plates, and the adjacent two conductive metal plates are electrically connected to the positive conductive wires and the negative conductive wires respectively in a parallel connection mode. When the first metal conducting rod a5 and the second metal conducting rod a6 are in contact with the conductive metal plates on the inner walls of the positive electrode conductive hole 9222 and the negative electrode conductive hole 9223, the electric circuit of the heating wire a4 is electrified to generate heat, and when the insulating sleeve a7 is in contact with the conductive metal plates, the heating wire a4 is in an open circuit state, and no current passes through, namely no heat is generated. The positive electrode lead and the negative electrode lead are connected with an external power supply through an electric brush so as to ensure that power can be continuously supplied to the positive electrode lead and the negative electrode lead when the electric brush rotates. The heat sealing unit 923 comprises a first heat sealing head a1, a purifying component a2 fixedly connected to the side wall of the square barrel 921 and a second heat sealing head a3 arranged at the bottom end of the first heat sealing head a1, an electric heating wire a4 is fixedly connected to one side of the inside of the second heat sealing head a3, a first metal conducting rod a5 and a second metal conducting rod a6 are fixedly connected to two ends of the electric heating wire a4 respectively, insulating sleeves a7 are fixedly sleeved on the outer walls of the parts, close to the first heat sealing head a1, of the first metal conducting rod a5 and the second metal conducting rod a6, insulating plates a8 are fixedly connected to the top ends of the first metal conducting rod a5 and the second metal conducting rod a6 together, second springs a9 are fixedly connected to the outer walls, close to the first heat sealing head a1, wedge-shaped grooves a10 are formed in the opposite side walls of the insulating plates a8 and the second springs a9, and driving components used for controlling the first heat sealing head a1 to move downwards or upwards are connected to the inner parts of the wedge-shaped grooves a10 in a sliding mode. The driving assembly comprises a wedge block a11 which is slidably connected inside a wedge groove a10, a screw rod a12 is rotatably connected to the outer wall of the wedge block a11, a knob is fixedly connected to one end, far away from the wedge block a11, of the screw rod a12, and a first marking block a13 corresponding to the second marking block 924 in position is fixedly connected to the outer wall of the knob. The whole body formed by the first metal conducting rod a5 and the insulating sleeve a7 and the second metal conducting rod a6 and the insulating sleeve a7 are respectively and slidably connected in two adjacent positive electrode conducting holes 9222 and negative electrode conducting holes 9223 in the power supply assembly 922, the insulating sleeve a7 is located above the power supply assembly 922, the second spring a9 is fixedly connected on opposite side walls of the insulating sleeve a7 and the bearing plate 9221, the screw rod a12 penetrates through the square cylinder 921, and the screw rod a12 is connected with the square cylinder 921 through threads.
Embodiment III: the main difference between this embodiment and the second technical solution is that: the purifying component a2 comprises a cylinder body a21 fixedly connected to the outer wall of the square cylinder 921, an air inlet pipe a22 used for sucking plastic smoke is fixedly connected to two sides of the outer wall of the cylinder body a21, which is close to the heat sealing head two a3, a first one-way valve a23 used for only allowing air to enter is fixedly arranged in the air inlet pipe a22, an exhaust pipe a24 used for exhausting air is fixedly connected to the side wall of the cylinder body a21, a purifying cylinder a25 used for purifying the plastic smoke is fixedly connected to the inner side of the exhaust pipe a24, a second one-way valve a26 used for only allowing air to exhaust is fixedly connected to one side of the purifying cylinder a25, a piston plate a27 is slidably connected to the inner side of the cylinder body a21, a push rod a28 is fixedly connected to the outer wall of the piston plate a27, and one end, far away from the piston plate a27, of the push rod a28 is slidably penetrated through the cylinder body a21 and fixedly connected with the outer wall of the heat sealing head two a 3. The inside of the purifying cylinder a25 is provided with activated carbon or other substances for purifying plastic smoke, and a sealing ring is fixedly sleeved on the outer wall of the push rod a28 and used for forming sealing sliding connection with the inner wall of the cylinder a 21. The second heat sealing head a3 comprises an arc-shaped heat sealing plate a31 and guide columns a32 fixedly connected to four corners of the side wall of the arc-shaped heat sealing plate a31, a first spring a33 is sleeved on the outer wall of the guide column a32 in a sliding mode, a plurality of lifting holes corresponding to the positions of the guide columns a32 one by one are formed in the outer wall of the first heat sealing head a1, close to the first spring a33, of the guide columns a32 in a sliding mode. And the bottom fixedly connected with stopper of guide post a32, the fixed stop collar that is used for preventing that the stopper breaks away from that is provided with in the lifting hole, first spring a33 is located between heat head a1 and the arc heat sealing board a 31. The gap between two adjacent arc-shaped heat sealing plates a31 is negligible.
The embodiment of the invention also provides a sealing method of the food packaging bag sealing device, which comprises the following steps:
step one, adjusting the width of a seal: the heat sealing widths of the sealing assemblies 92 in the heat sealing mechanism 9 are respectively adjusted according to the widths of the food packaging bags to be sealed, so that the heat sealing widths are equal to the widths of the food packaging bags; during adjustment, the heat sealing units 923 positioned in the middle of the square cylinder 921 are sequentially adjusted to two sides at the same time until the width formed by the heat sealing units 923 is the same as the heat sealing width of the food packaging bag, and the heat sealing units 923 at the part of the heat sealing units 923 protrude out of the heat sealing units 923 at other positions before the food packaging bag contacts, so that the sealing operation is completed; when the heat sealing unit 923 is specifically adjusted, the knob is manually rotated clockwise to drive the screw a12 to rotate, when the knob is at the initial position, the first marking block a13 at the top of the knob is opposite to the adjacent second marking block 924, and the distance between the first marking block a13 and the adjacent second marking block 924 is nearest, because the screw a12 and the square cylinder 921 are in threaded connection, when the screw a12 rotates to push the wedge a11 to move along the wedge groove a10 towards the inside of the square cylinder 921, the wedge a11 presses the insulating sleeve a7 downwards, so that the insulating sleeve a7 slides downwards along the positive electrode conductive hole 9222 and the negative electrode conductive hole 9223 until the first metal conductive rod a5, the second metal conductive rod a6 and the metal conductive plates on the inner walls of the positive electrode conductive hole 9222 and the negative electrode conductive hole 9223 are in contact, a circuit where the heating wire a4 is located is conducted, the circuit can emit heat with the same size as a set value, and the heat is transferred out through the thermal head two a 3. After the knob is rotated clockwise by one hundred eighty degrees, the first mark block a13 is located at the farthest position from the opposite second mark block 924, and at this time, the first mark block a13 and the second mark block 924 are on a straight line, and by observing the heat seal unit 923 that the heat seal unit 923 has been protruded from the other positions, it is indicated that the adjustment work has been completed; when the screw a12 is rotated in reverse, it is rotated one hundred and eighty degrees in reverse until the current position of the first marker block a13 returns to the nearest position to the second marker block 924 that matches it, i.e., both are on the same straight line.
Step two, placing food packaging bags: flatly placing the packaging bag filled with the food on the top of the lifting assembly 3, and ensuring that the area to be sealed at one end of the packaging bag is placed in a heat sealing area defined on the top of the lifting assembly 3;
step three, heat sealing and preheating preparation: before heat sealing of the food packaging bag, a heating switch of the heat sealing mechanism 9 is started in advance, and the heat sealing mechanism 9 is kept to heat for a certain time to reach a set heat sealing temperature; the food packaging bag is placed in detail: the top of the supporting plate 31 is provided with a limit groove for limiting the placing position of the food packaging bag so as to prevent the food bag from being shifted in position during sealing and place the sealing area of the food packaging bag on the heat-seal carrier plate 32.
Step four, heat sealing operation of the packaging bag: starting a servo motor 4 to drive a gear 5 to drive a turntable mechanism 2 to rotate at a low speed at a constant speed, wherein a regular matching relation exists between the rotation degree of the turntable mechanism 2 and the rotation speed of a heat sealing mechanism 9, and the matching relation ensures that when one lifting assembly 3 rotates to be right below the heat sealing mechanism 9, one sealing assembly 92 rotates to be right above the lifting assembly 3, the bottom end of the sealing assembly 92 contacts with a heat sealing area at the top of the lifting assembly 3 and generates extrusion, and simultaneously, plastic smoke generated during heat sealing is adsorbed and purified; the specific operation is as follows when the food packaging bag is heat sealed: the servo motor 4 controls the rotation speed of the servo motor by a programming program, the output shaft drives the gear 5 to rotate, the gear 5 is connected with the gear ring 23 by the gear belt 24, therefore, the turntable 21 synchronously rotates at a constant speed, the worm 25 is meshed with the worm wheel 93, the turntable 21 drives the transmission shaft 91 to rotate when rotating, the supporting plate 31 loaded with the food packaging bag is pressed at the top of the heat sealing bearing plate 32 at the same time when passing under the heat sealing units 923 after being regulated, the heat sealing units 923 are melted by the heat sealing units 923 positioned between the heat sealing units 923 and the heat sealing bearing plate 32, the heat sealing operation is completed after the heat sealing units 923 rotate and are separated, and the melted areas are cooled; at the same time, the arc-shaped heat sealing plate a31 receives the upward acting force of the heat sealing bearing plate 32, the guide column a32 slides towards the inside of the lifting hole, the arc-shaped heat sealing plate a31 moves upwards, the first spring a33 is compressed, so that the push rod a28 is synchronously driven to push the piston plate a27 to move, the piston plate a27 moves away from the air inlet pipe a22, the generated suction force sucks plastic smoke around the arc-shaped heat sealing plate a31 into the cylinder a21, and due to the arrangement of the first one-way valve a23 and the second one-way valve a26, when the piston plate a27 is reset by the elastic force of the first spring a33, the smoke in the cylinder a21 is discharged through the air outlet pipe a24, and harmful substances in the smoke are adsorbed and filtered by the purifying cylinder a 25.
Step five, automatic bag taking operation: when the lifting assembly 3 loaded with the food packaging bag moves to the position right above the top block 6, the top block 6 pushes the lifting assembly 3 to turn over a certain angle, and the food packaging bag slides from the top of the lifting assembly 3 to the guide plate 7 under the action of self gravity and is output. The method comprises the following steps: the ejector rod 33 and the ejector block 6 meet, the ejector rod 33 is jacked up by the ejector block 6 and overturned towards the direction of the guide plate 7, and the food packaging bag sealed at the top of the supporting plate 31 slides onto the guide plate 7 under the action of self gravity, so that the follow-up further operation is facilitated.
In the fourth step, the rotation speed of the servo motor 4 is 10 to 20 revolutions per minute, and in the fifth step, the overturning angle of the lifting assembly 3 is fifty degrees.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a food package closing device, includes operation panel, its characterized in that: the top of the operating table is rotationally provided with a turntable mechanism for conveying food packaging bags to be sealed, a plurality of lifting assemblies for placing the food packaging bags to be sealed are uniformly arranged on the periphery of the top of the turntable mechanism, a power mechanism for driving the turntable mechanism to rotate is arranged in the operating table, the power mechanism comprises a servo motor and a gear fixedly connected to an output shaft of the servo motor, a top block for pushing the lifting assemblies to perform overturning action is fixedly connected to the top of the operating table and below the turntable mechanism, a guide plate for conveying and finishing the sealing of the food packaging bags is fixedly connected to the top of the operating table and right in front of the top block, an L-shaped frame is fixedly connected to the position of the top of the operating table away from the guide plate, two sides of the bottom of the L-shaped frame are fixedly connected with side plates, and a heat sealing mechanism for sealing the food packaging bags is jointly rotationally connected to opposite side walls of the two side plates;
the heat sealing mechanism comprises a transmission shaft which is rotationally connected to the opposite side walls of the two side plates, one end of the transmission shaft rotationally penetrates through one side plate and is fixedly connected with a worm wheel, and a plurality of sealing assemblies for heat sealing food packaging bags are uniformly arranged on the outer wall of the transmission shaft;
the sealing assembly comprises a square cylinder fixedly connected to the outer wall of the transmission shaft and a power supply assembly fixedly connected to the inner wall of the square cylinder, a plurality of heat sealing units are uniformly arranged in the power supply assembly, one end, far away from the power supply assembly, of each heat sealing unit extends to the outer part of the square cylinder, and a plurality of second marking blocks which correspond to the heat sealing units one by one are uniformly and fixedly connected to the outer wall of the square cylinder;
the heat sealing unit comprises a first heat sealing head, a purifying component fixedly connected to the side wall of the square cylinder and a second heat sealing head arranged at the bottom end of the first heat sealing head, wherein an electric heating wire is fixedly connected to one side of the interior of the second heat sealing head, a first metal conducting rod and a second metal conducting rod are respectively and fixedly connected to two ends of the electric heating wire, insulating sleeves are fixedly sleeved on part of the outer walls of the first metal conducting rod and the second metal conducting rod, insulating plates are fixedly connected to the top ends of the first metal conducting rod and the second metal conducting rod together, a second spring is fixedly connected to the outer wall of the insulating plate, which is close to the first heat sealing head, a wedge-shaped groove is formed in the side wall of the insulating plate, which is opposite to the second spring, and a driving component for controlling the heat sealing head to move downwards or upwards is connected to the inner part of the wedge-shaped groove in a sliding manner;
the driving assembly comprises a wedge block which is connected inside the wedge groove in a sliding way, a screw is rotationally connected to the outer wall of the wedge block, one end of the screw, which is far away from the wedge block, is fixedly connected with a knob, and a first marking block corresponding to the second marking block in position is fixedly connected to the outer wall of the knob;
the power supply assembly comprises a bearing plate fixedly connected to the inner wall of the square cylinder, a plurality of groups of positive electrode conductive holes and negative electrode conductive holes uniformly formed in the outer wall of the bearing plate, and a positive electrode wire and a negative electrode wire fixedly connected to the inside of the bearing plate, wherein conductive metal plates are fixedly connected to the inner walls of the positive electrode conductive holes and the negative electrode conductive holes, and two adjacent conductive metal plates are respectively and electrically connected with the positive electrode wire and the negative electrode wire;
the purification assembly comprises a cylinder body fixedly connected to the outer wall of the square cylinder, the two sides of the outer wall of the cylinder body, which are close to the second thermal seal head, are fixedly connected with air inlet pipes for sucking plastic smoke, first one-way valves for allowing air to enter only are fixedly arranged in the air inlet pipes, exhaust pipes for exhausting air are fixedly connected to the side walls of the cylinder body, a purification cylinder for purifying the plastic smoke is fixedly connected to the inside of the exhaust pipes, a second one-way valve for allowing air to be exhausted only is fixedly connected to one side of the purification cylinder, a piston plate is slidingly connected to the inside of the cylinder body, a push rod is fixedly connected to the outer wall of the piston plate, one end, which is far away from the piston plate, of the push rod is slidingly penetrated through the cylinder body and is fixedly connected with the second thermal seal head, the second thermal seal head comprises an arc thermal seal plate and guide posts fixedly connected to the four corners of the side walls of the arc thermal seal plate, a plurality of lifting holes corresponding to the positions of the guide posts are arranged on the outer wall of the first thermal seal head, and the guide posts are slidingly connected in the lifting holes in a one-to-one correspondence mode;
the rotary table mechanism comprises a rotary shaft rotatably connected to the top of the operating table and a rotary table fixedly connected to the top end of the rotary shaft, a gear ring is fixedly sleeved on the outer wall of the rotary shaft, a tooth belt is sleeved on the outer wall of the gear ring and the gear together, the top end of the rotary table is fixedly connected with a worm in meshed connection with a worm wheel, and a plurality of strip movable through grooves corresponding to the lifting assembly in a one-to-one mode are uniformly formed in the top of the rotary table;
the lifting assembly comprises a supporting plate rotatably connected to the top of the turntable and a heat-sealing bearing plate fixedly connected to one side of the top of the supporting plate and used for being matched with the second heat sealing head, and an ejector rod is fixedly connected to one side of the bottom of the supporting plate.
2. A sealing method for implementing the sealing device for food packaging bags according to claim 1, characterized in that: the method comprises the following steps:
step one, adjusting the width of a seal: the heat sealing widths of a plurality of sealing assemblies in the heat sealing mechanism are respectively adjusted according to the width of the food packaging bag to be sealed, so that the heat sealing widths are ensured to be equal to the width of the food packaging bag;
step two, placing food packaging bags: flatly placing the packaging bag filled with the food on the top of the lifting assembly, and ensuring that a region to be sealed at one end of the packaging bag is placed in a heat sealing region defined on the top of the lifting assembly;
step three, heat sealing and preheating preparation: before heat sealing of the food packaging bag, a heating switch of a heat sealing mechanism is started in advance, and the heat sealing mechanism is kept to heat for a certain time to reach a set heat sealing temperature;
step four, heat sealing operation of the packaging bag: starting a servo motor to drive a gear to drive a turntable mechanism to rotate at a low speed at a constant speed, wherein a regular matching relation exists between the rotation degree of the turntable mechanism and the rotation speed of a heat sealing mechanism, and the matching relation ensures that when one of the lifting assemblies rotates to be right below the heat sealing mechanism, one of the sealing assemblies rotates to be right above the lifting assembly, the bottom end of the sealing assembly is contacted with a heat sealing area at the top of the lifting assembly and extrudes the heat sealing area, and simultaneously adsorbs and purifies plastic smoke generated during heat sealing;
step five, automatic bag taking operation: when the lifting assembly loaded with the food packaging bag moves to the position right above the jacking block, the jacking block pushes the lifting assembly to turn over for a certain angle, and the food packaging bag slides from the top of the lifting assembly to the guide plate under the action of self gravity and is output.
3. The sealing method of a sealing device for food packaging bags according to claim 2, wherein: in the fourth step, the rotating speed of the servo motor is 10 to 20 revolutions per minute, and in the fifth step, the overturning angle of the lifting assembly is fifty degrees.
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| CN202311675753.8A CN117360896B (en) | 2023-12-08 | 2023-12-08 | Food packaging bag sealing device and method |
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| CN202311675753.8A CN117360896B (en) | 2023-12-08 | 2023-12-08 | Food packaging bag sealing device and method |
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