CN219106236U

CN219106236U - Feeding and discharging misplacement taking and placing mechanism for secondary sealing line of lithium battery and secondary sealing line of lithium battery

Info

Publication number: CN219106236U
Application number: CN202223551879.8U
Authority: CN
Inventors: 贺朝阳; 贺朝霞; 程红科; 陈超纲; 邓江帆; 王松建; 陈少峰
Original assignee: Huizhou Huawei Electromechanical Equipment Co ltd
Current assignee: Huizhou Huawei Electromechanical Equipment Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-30
Anticipated expiration: 2032-12-28

Abstract

The application provides a feeding and discharging misplacement taking and placing mechanism for a lithium battery secondary sealing wire and the lithium battery secondary sealing wire. The feeding and discharging misplacement picking and placing mechanism for the secondary sealing line of the lithium battery comprises a mounting frame, a turntable assembly, a feeding and discharging mechanism and a conveying belt; the rotary table assembly comprises a rotary table and a plurality of puncture liquid suction modules, a plurality of stations are arranged on the rotary table, a loading area and a discharging area are arranged on the mounting frame, and each station sequentially passes through the loading area and the discharging area through rotation of the rotary table; the feeding and discharging mechanism comprises a feeding module, a feeding manipulator and a discharging manipulator, wherein the feeding manipulator is used for collecting the electric core on the feeding module and sending the electric core to the puncture liquid suction module positioned in the feeding area, the starting end is arranged on the discharging area of the conveying belt, and the discharging manipulator is used for collecting the electric core positioned on the puncture liquid suction module positioned in the discharging area and sending the electric core to the starting end. Through setting up material loading district and unloading district, misplacement is got to the last unloading of electric core and is put, solves electric core and gets the concentrated problem of putting, improves the efficiency of electric core evacuation encapsulation process.

Description

Feeding and discharging misplacement taking and placing mechanism for secondary sealing line of lithium battery and secondary sealing line of lithium battery

Technical Field

The utility model relates to the technical field of battery production, in particular to an upper and lower material dislocation taking and placing mechanism for a secondary sealing line of a lithium battery and the secondary sealing line of the lithium battery.

Background

The soft package battery core processing procedures comprise the procedures of initial positioning, vacuumizing packaging, cutting, edge ironing, positioning, trimming, bending, edge ironing and the like. Because the battery core contains toxic and harmful substances, the lithium battery needs to be packaged after the liquid injection process is finished, after the electrolyte is injected and subjected to standing treatment, the air bag of the battery core needs to be pierced, then the redundant electrolyte which is not absorbed by the battery core is pumped out, and the aluminum plastic film is heated and pressurized in a vacuum environment to realize the vacuum packaging of the battery core, so that the situation that liquid leakage does not occur when the lithium battery is sold in the market is prevented.

Therefore, the vacuum packaging process is a key process of the soft package battery cell processing process. In order to improve the efficiency of vacuumizing packaging equipment for vacuumizing packaging the battery cells, china patent with the patent publication number of CN212571079U proposes a vacuumizing packaging mold, equipment and a battery cell manufacturing system, when vacuumizing packaging the battery cells, a turntable (namely a rotatable fixing seat in the patent) is adopted for multi-station arrangement, namely after the turntable completes one-time periodic rotation of the multi-station, the battery cells which are pierced and absorbed and packaged are taken out from the vacuumizing packaging mold of one station, and then the battery cells to be pierced are put into the vacuumizing packaging mold of the station for sequential cyclic operation;

however, the prior art disclosed in the above patent has the following problems:

before placing the battery to be punctured with liquid, the vacuum packaging mold needs to be opened and the packaged battery core needs to be taken out, that is, there is a time difference between the discharging of the packaged battery core and the feeding of the battery core to be punctured with liquid, the time difference is generally between 2s and 3s, and more importantly, the packaged battery must be taken out after the rotating disc rotates for a complete period, in fact, by optimizing the process of puncturing with liquid and packaging, the time taken by the battery core to puncture and suck electrolyte waste liquid and after packaging is shorter than the time taken by the rotating disc to rotate for a complete period, and there is also a time difference, for example, there is a time difference between 1s and 2s, which generally affects the overall efficiency of the vacuum packaging procedure of the battery core.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a feeding and discharging misplacement taking and placing mechanism for a lithium battery secondary sealing wire and a lithium battery secondary sealing wire, which can misplacement taking and placing of a battery core, so that the problem of centralized taking and placing is solved, the feeding and discharging time difference of the battery core is shortened, and the feeding and discharging structure is also provided with an adaptive rotary table, so that the rotation time difference is shortened, and the overall efficiency of a battery core vacuumizing and packaging process is improved.

The aim of the utility model is realized by the following technical scheme:

the utility model provides a two sealing lines of lithium cell go up unloading dislocation and get put mechanism, includes mounting bracket, carousel subassembly, goes up unloading mechanism and conveyer belt; the rotary table assembly comprises a motor, a rotary table and a plurality of piercing liquid suction modules, the motor is arranged on the mounting frame, the rotary table is connected with the motor, a plurality of stations are arranged on the rotary table, the piercing liquid suction modules are arranged on the stations in a one-to-one correspondence manner, a feeding area and a discharging area are arranged on the mounting frame, and the rotary table rotates to enable each station to sequentially pass through the feeding area and the discharging area; the feeding and discharging mechanism comprises a feeding module, a feeding mechanical arm and a discharging mechanical arm, the feeding module is arranged on the mounting frame, the feeding mechanical arm is arranged in the feeding area, the feeding mechanical arm is used for collecting and feeding the electric core on the feeding module to the puncture liquid suction module which is positioned in the feeding area, and the discharging mechanical arm is arranged in the discharging area; the conveying belt is arranged on the mounting frame, a starting end is arranged on the blanking area of the conveying belt, and the blanking manipulator is used for collecting and sending the electric core which is positioned on the puncture liquid suction module of the blanking area to the starting end.

In one embodiment, the discharging manipulator comprises a cylinder part and a suction part, the cylinder part is connected to the mounting frame, the suction part comprises a fixing plate and a plurality of supporting plates, the fixing plate is connected with the output end of the cylinder part, each supporting plate is arranged on the fixing plate, and each supporting plate is provided with a discharging suction nozzle.

In one embodiment, the fixing plate and the supporting plates are integrally formed, and the supporting plates are arranged side by side on the fixing plate.

In one embodiment, the number of the piercing liquid absorbing modules is four, the turntable is provided with four stations, an included angle between two adjacent stations is 90 degrees, and each piercing liquid absorbing module is correspondingly arranged on one station.

In one embodiment, the time required for the electric core to complete the puncturing liquid suction and packaging process in the corresponding puncturing liquid suction module is equal to the time required for one puncturing liquid suction module to continuously pass through three stations after the rotating disc rotates.

In one embodiment, the puncture-liquid-absorbing module located in the feeding area sequentially passes through three stations along the rotation direction of the turntable and enters the discharging area.

In one embodiment, the feeding module comprises a feeding rotary table and a plurality of electric core bearing dishes, the electric core bearing dishes are uniformly distributed on the feeding rotary table, each electric core bearing dish is used for bearing a plurality of electric cores, and the feeding rotary table is adjacent to the feeding manipulator.

In one embodiment, the feeding manipulator comprises a base, a rotary air pump, a rotary shaft and a manipulator body, wherein the base is arranged on the mounting rack, the rotary air pump is installed on the base, the rotary shaft is rotationally connected with the rotary air pump, a plurality of feeding suction nozzles are arranged on the manipulator body, the manipulator body is connected with the rotary shaft, and the rotary shaft is used for driving the manipulator body to reciprocate between the feeding module and the puncture liquid suction module of the feeding area.

In one embodiment, the feeding manipulator further comprises a connecting rod, and two ends of the connecting rod are respectively connected with the rotary air pump and the manipulator body.

The secondary sealing line of the lithium battery comprises the feeding and discharging misplacement picking and placing mechanism for the secondary sealing line of the lithium battery, the secondary sealing line of the lithium battery further comprises a blanking mechanism, a fine sealing mechanism and a heat sealing mechanism, and the feeding and discharging misplacement picking and placing mechanism for the secondary sealing line of the lithium battery, the blanking mechanism, the fine sealing mechanism and the heat sealing mechanism are sequentially installed on the installation frame along the conveying direction of the conveying belt.

Compared with the prior art, the utility model has the following advantages:

1. the feeding area and the discharging area are respectively arranged, so that the feeding and discharging of the battery cells are misplaced, and the problem of centralized feeding and discharging of the battery cells is solved, namely, the feeding and discharging time difference of the battery cells is shortened, and the efficiency of the battery cell vacuumizing packaging process is improved;

2. through carrying out better adaptation with carousel and last unloading structure to shorten the pivoted time difference of electricity core on corresponding puncture imbibition module, further improve the whole efficiency of electricity core evacuation encapsulation process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a feeding and discharging misplacement picking and placing mechanism for a two-seal wire of a lithium battery in an embodiment;

fig. 2 is a schematic structural diagram of a feeding and discharging misplacement picking and placing mechanism for a secondary sealing wire of a lithium battery in another embodiment;

fig. 3 is a schematic structural diagram of a blanking manipulator in the blanking misplacement picking and placing mechanism for the two sealing wires of the lithium battery shown in fig. 2;

fig. 4 is a schematic structural diagram of a feeding manipulator in the feeding/discharging misplacement picking/placing mechanism for the secondary sealing line of the lithium battery shown in fig. 2.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The application provides a feeding and discharging misplacement picking and placing mechanism for a secondary sealing line of a lithium battery, which comprises a mounting rack, a turntable assembly, a feeding and discharging mechanism and a conveying belt; the rotary table assembly comprises a motor, a rotary table and a plurality of piercing liquid suction modules, the motor is arranged on the mounting frame, the rotary table is connected with the motor, a plurality of stations are arranged on the rotary table, the piercing liquid suction modules are arranged on the stations in a one-to-one correspondence manner, a feeding area and a discharging area are arranged on the mounting frame, and the rotary table rotates to enable each station to sequentially pass through the feeding area and the discharging area; the feeding and discharging mechanism comprises a feeding module, a feeding mechanical arm and a discharging mechanical arm, the feeding module is arranged on the mounting frame, the feeding mechanical arm is arranged in the feeding area, the feeding mechanical arm is used for collecting and feeding the electric core on the feeding module to the puncture liquid suction module which is positioned in the feeding area, and the discharging mechanical arm is arranged in the discharging area; the conveying belt is arranged on the mounting frame, a starting end is arranged on the blanking area of the conveying belt, and the blanking manipulator is used for collecting and sending the electric core which is positioned on the puncture liquid suction module of the blanking area to the starting end.

For better understanding of the technical solutions and advantageous effects of the present application, the following details are further described with reference to specific embodiments:

referring to fig. 1 and 2, the feeding and discharging misplacement picking and placing mechanism 10 for a lithium battery secondary wire according to an embodiment of the present utility model includes a mounting frame 100, a feeding and discharging mechanism 200, a turntable assembly 300 and a conveying belt 400, wherein the turntable assembly 300 includes a motor (not shown), a turntable 310 and a plurality of piercing liquid suction modules 320, the motor is disposed on the mounting frame 100, the turntable 310 is connected with the motor, a plurality of stations 315 are disposed on the turntable 310, and the piercing liquid suction modules 320 are disposed on the stations 315 in a one-to-one correspondence; the mounting frame 100 is provided with a feeding area 101 and a discharging area 102, and the turntable 310 rotates to enable each station 315 to sequentially pass through the feeding area 101 and the discharging area 102; the feeding and discharging mechanism 200 comprises a feeding module 210, a feeding manipulator 220 and a discharging manipulator 230, wherein the feeding module 210 is arranged on the mounting frame 100, the feeding manipulator 220 is arranged in the feeding area 101, the feeding manipulator 220 is used for collecting and feeding the electric core on the feeding module 210 to a puncture liquid suction module 320 which is positioned in the feeding area 101, and the discharging manipulator 230 is arranged in the discharging area 102; the conveying belt 400 is disposed on the mounting frame 100, a starting end is disposed on the discharging area 102 of the conveying belt 400, and the discharging manipulator 230 is configured to collect and send the electric core located on the piercing liquid suction module 320 of the discharging area 102 to the starting end.

In this embodiment, with the rotation of the turntable 310, when a station 315 moves to the feeding area 101, the feeding manipulator 220 will collect the electrical core on the feeding module 210 and place the electrical core on the piercing and sucking module 320 of the station 315, then the piercing and sucking module 320 performs the piercing and sucking process on the electrical core, then the station 315 continues to rotate to a position adjacent to the discharging area 102, at this time, the electrical core has completed the whole piercing and sucking and packaging process, and when the station 315 moves to the discharging area 102, the discharging manipulator 230 will collect the electrical core and place the electrical core at the starting end, and then the electrical core is transported to the next process by the conveyor 400. It can be understood that, when the piercing and imbibing process is performed on the electrical core, the feeding manipulator 220 continuously conveys the electrical core that is not pierced and imbibed to the piercing and imbibing module 320 of the other station 315, and the discharging manipulator 230 continuously transfers the electrical core that is moved to the other station 315 of the discharging area 102 and has completed the piercing and imbibing process to the beginning end of the conveying belt 400.

In the embodiment, the feeding area 101 and the discharging area 102 are respectively arranged to take and place the feeding and discharging of the battery cells in a staggered manner, so that the problem of centralized taking and placing of the battery cells is solved, namely, the feeding and discharging time difference of the battery cells is shortened, and the efficiency of the battery cell vacuumizing packaging process is improved; and, carry out better adaptation with carousel 310 and last unloading structure to shorten the battery core and puncture the time difference that imbibition module 320 rotated on corresponding, further improve the whole efficiency of battery core evacuation encapsulation process.

In one embodiment, referring to fig. 3, the discharging manipulator 230 includes a cylinder member 232 and a suction member 234, the cylinder member 232 is connected to the mounting frame 100, the suction member 234 includes a fixing plate 2341 and a plurality of support plates 2342, the fixing plate 2341 is connected to an output end of the cylinder member 232, each support plate 2342 is disposed on the fixing plate 2341, and each support plate 2342 is provided with a discharging suction nozzle 2342a. In this embodiment, when the piercing and sucking module 320 enters the discharging area 102, the cylinder member 232 pushes the fixing plate 2341 to move toward the piercing and sucking module 320, and at this time, each supporting plate 2342 on the fixing plate 2341 moves along with the piercing and sucking module 320, so that each discharging nozzle 2342a is used for sucking each electrical core of the piercing and sucking module 320, and thus the discharging of the electrical core is completed.

In one embodiment, referring to fig. 3, the fixing plate 2341 and the support plates 2342 are integrally formed, and the support plates 2342 are disposed side by side on the fixing plate 2341. In this way, the strength of the connection between each support plate 2342 and the fixing plate 2341 is made high.

In one embodiment, referring to fig. 2, the number of the piercing liquid sucking modules 320 is four, the turntable 310 is provided with four stations 315, an included angle between two adjacent stations 315 is 90 degrees, and each piercing liquid sucking module 320 is correspondingly disposed on one station 315. In this embodiment, by arranging four stations 315 and four piercing liquid-sucking modules 320, each piercing liquid-sucking module 320 is correspondingly arranged on one station 315, so that the turntable assembly 300 can simultaneously perform piercing liquid-sucking and packaging procedures on all the electric cores on the four stations 315, thereby improving the efficiency of performing vacuum-pumping packaging procedures on a plurality of electric cores.

Further, the time required for the electrical core to complete the puncturing and packaging process in the corresponding puncturing and sucking module 320 is equal to the time required for one puncturing and sucking module 320 to continuously pass through the three stations 315 after the rotating disc 310 rotates. In this embodiment, after the turntable 310 rotates, the electrical cores perform the processes of piercing, sucking and packaging in the respective piercing, sucking and sucking modules 320, and the time for completing the processes is equal to the time for rotating the turntable 310 at the three stations 315.

Further, the piercing liquid sucking module 320 located in the feeding area 101 sequentially passes through the three stations 315 along the rotation direction of the turntable 310 and enters the discharging area 102. Thus, when the electrical core of the piercing and sucking module 320 is fed from the feeding area 101, the electrical core completes the piercing and sucking and packaging process in the piercing and sucking module 320 in the time of continuously passing through the three stations 315, and then the piercing and sucking module 320 enters the discharging area 102, and the discharging manipulator 230 takes out the electrical core in the piercing and sucking module 320 and sends it to the starting end for the next process.

In one embodiment, referring to fig. 1, the feeding module 210 includes a feeding rotary table 212 and a plurality of cell carriers 214, the plurality of cell carriers 214 are uniformly distributed on the feeding rotary table 212, each cell carrier 214 is configured to hold a plurality of cells, and the feeding rotary table 212 is disposed adjacent to the feeding robot 220. In this embodiment, the feeding rotary table 212 is disposed adjacent to the feeding manipulator 220, and then the plurality of cell carriers 214 are disposed on the feeding rotary table 212, so as to realize the rotary feeding of the plurality of cells.

In one embodiment, referring to fig. 4, the feeding manipulator 220 includes a base 221, a rotary air pump 222, a rotary shaft 223 and a manipulator body 224, the base 221 is disposed on the mounting frame 100, the rotary air pump 222 is mounted on the base 221, the rotary shaft 223 is rotationally connected with the rotary air pump 222, the manipulator body 224 is provided with a plurality of feeding nozzles 2241, and the manipulator body 224 is connected with the rotary shaft 223, and the rotary shaft 223 is used for driving the manipulator body 224 to reciprocate between the feeding module 210 and the piercing liquid suction module 320 of the feeding area 101. In this embodiment, the rotating air pump 222 drives the rotating shaft 223 to rotate, so as to drive the manipulator body 224 to move to the position of the feeding module 210, the plurality of feeding nozzles 2241 on the manipulator body 224 are used for sucking a plurality of electric cores, then the manipulator body 224 moves to the position of the piercing liquid sucking module 320 of the feeding area 101, and the plurality of electric cores are placed on the piercing liquid sucking module 320, so that the cycle is performed.

Further, the feeding manipulator 220 further includes a connecting rod 225, and two ends of the connecting rod 225 are respectively connected to the rotary air pump 222 and the manipulator body 224. In this way, the connecting rod 225 is arranged to connect the manipulator body 224 with the rotary air pump 222, so that the installation firmness of the manipulator body 224 is improved.

The application also provides a two sealing lines of lithium cell, including two sealing lines of lithium cell for the unloading dislocation get put the mechanism above any embodiment, two sealing lines of lithium cell still include blank mechanism, smart mechanism and heat sealing mechanism, two sealing lines of lithium cell for the unloading dislocation get put the mechanism blank mechanism, smart mechanism and heat sealing mechanism follow for the lithium cell the direction of delivery of conveyer belt install in proper order on the mounting bracket.

Compared with the prior art, the utility model has the following advantages:

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. Feeding and discharging misplacement picking and placing mechanism for two sealing wires of lithium battery is characterized by comprising the following components:

a mounting frame;

the rotary table assembly comprises a motor, a rotary table and a plurality of piercing liquid suction modules, the motor is arranged on the mounting frame, the rotary table is connected with the motor, a plurality of stations are arranged on the rotary table, the piercing liquid suction modules are arranged on the stations in a one-to-one correspondence manner, a feeding area and a discharging area are arranged on the mounting frame, and the rotary table rotates to enable each station to sequentially pass through the feeding area and the discharging area;

the feeding and discharging mechanism comprises a feeding module, a feeding manipulator and a discharging manipulator, wherein the feeding module is arranged on the mounting frame, the feeding manipulator is arranged in the feeding area, the feeding manipulator is used for collecting and feeding the electric core on the feeding module to the puncture liquid suction module which is positioned in the feeding area, and the discharging manipulator is arranged on the discharging area;

the conveying belt is arranged on the mounting frame, a starting end is arranged on the blanking area of the conveying belt, and the blanking manipulator is used for collecting and sending the electric core which is positioned on the puncture liquid suction module of the blanking area to the starting end.

2. The mechanism for dislocating taking and placing of upper and lower materials for two sealing wires of lithium batteries according to claim 1, wherein the discharging manipulator comprises a cylinder part and a suction part, the cylinder part is connected with the mounting frame, the suction part comprises a fixed plate and a plurality of support plates, the fixed plate is connected with the output end of the cylinder part, each support plate is arranged on the fixed plate, and a discharging suction nozzle is arranged on each support plate.

3. The mechanism for dislocating taking and placing of upper and lower materials for two sealing wires of lithium battery according to claim 2, wherein the fixing plate and the supporting plates are in an integrated structure, and the supporting plates are arranged side by side on the fixing plate.

4. The mechanism for dislocating and taking and placing the two sealing wires of the lithium battery according to claim 1, wherein the number of the puncture liquid absorbing modules is four, the turntable is provided with four stations, the included angle between two adjacent stations is 90 degrees, and each puncture liquid absorbing module is correspondingly arranged on one station.

5. The mechanism for dislocating and feeding and picking and placing two sealing wires of lithium battery according to claim 4, wherein the time required by the electric core to complete the puncturing liquid suction and packaging process in the corresponding puncturing liquid suction module is equal to the time required by one puncturing liquid suction module to continuously pass through three stations after the rotating of the rotating disc.

6. The dislocated taking and placing mechanism for the secondary sealing line of the lithium battery according to claim 5, wherein the puncture liquid suction module located in the feeding area sequentially passes through three stations and enters the discharging area along the rotation direction of the turntable.

7. The mechanism for dislocating taking and placing of upper and lower materials for two sealing wires of lithium batteries according to claim 1, wherein the feeding module comprises a feeding rotary table and a plurality of electric core bearing dishes, the electric core bearing dishes are uniformly distributed on the feeding rotary table, each electric core bearing dish is used for bearing a plurality of electric cores, and the feeding rotary table is arranged adjacent to the feeding manipulator.

8. The mechanism for taking and placing the lithium battery two-seal wire by using the misplacement feeding and discharging mechanism according to claim 1, wherein the feeding manipulator comprises a base, a rotary air pump, a rotary shaft and a manipulator body, the base is arranged on a mounting frame, the rotary air pump is arranged on the base, the rotary shaft is rotationally connected with the rotary air pump, a plurality of feeding suction nozzles are arranged on the manipulator body, the manipulator body is connected with the rotary shaft, and the rotary shaft is used for driving the manipulator body to reciprocate between the feeding module and a puncture liquid suction module of a feeding area.

9. The mechanism for dislocating taking and placing of upper and lower materials for two sealing wires of lithium battery according to claim 8, wherein the feeding manipulator further comprises a connecting rod, and two ends of the connecting rod are respectively connected with the rotating air pump and the manipulator body.

10. The secondary sealing line for the lithium battery is characterized by comprising the feeding and discharging misplacement taking and placing mechanism for the secondary sealing line for the lithium battery, which is any one of claims 1 to 9, and further comprises a blanking mechanism, a fine sealing mechanism and a heat sealing mechanism, wherein the feeding and discharging misplacement taking and placing mechanism for the secondary sealing line for the lithium battery, the blanking mechanism, the fine sealing mechanism and the heat sealing mechanism are sequentially arranged on the mounting frame along the conveying direction of the conveying belt.