Battery encapsulation reflow fixture with gas path

Abstract

The utility model discloses a battery encapsulation reflow fixture with gas circuit, including the lower pressing plate gas circuit subassembly, the inflation subassembly of being located lower pressing plate gas circuit subassembly one end top, the gas butt joint plate of being installed on lower pressing plate gas circuit subassembly one end, the rotation is installed on lower pressing plate gas circuit subassembly upper pressing plate gas circuit subassembly, install on the upper pressing plate turnover subassembly of lower pressing plate gas circuit subassembly other end, install on the first vacuum cavity of lower pressing plate gas circuit subassembly and install on the second vacuum cavity of lower pressing plate gas circuit subassembly. The utility model realizes can be firm to the aluminium plastic cover and suck tightly, it has the advantages such as high adsorption efficiency and good adsorption effect, and it will not affect the aluminium plastic film shell body to carry out top side edge sealing operation, to effectively solve the process of traditional clamping mode of adopting clamp control shell closure in top side edge sealing, and aluminium plastic film shell body clamp closure is not firm and the problem of affecting the top side edge sealing effect of aluminium plastic film shell body because of aluminium plastic film shell loose.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and in particular to a battery packaging return clamp with an air passage. Background Technology

[0002] Before battery cell packaging, the battery cell needs to be placed inside an aluminum-plastic film housing. Only after the housing wraps the battery cell can subsequent packaging processes be carried out. On the battery cell packaging production line, the aluminum-plastic film housing is fed into the fixture, the fixture closes, and then a top-cutting process is performed. The top edge of the aluminum-plastic film housing has tabs, so it needs to be top-cut first. After top-cutting, the fixture controls the aluminum-plastic film housing to open. After the aluminum-plastic film housing is opened, the battery cell is placed in, and the fixture controls the housing to close and clamp tightly. Then, the top and side edges are sealed. During the top and side edge sealing process, the fixture must be kept tightly closed to prevent the aluminum-plastic film housing from loosening and affecting the top and side edge sealing. The fixture moves between different workstations, and the aluminum-plastic film housing fixture is prone to loosening and insecure closure. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery packaging return fixture with an air passage.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the flowable clamp with air passage includes a lower pressure plate air passage assembly for clamping the bottom of the aluminum-plastic shell;

[0005] An air pumping unit is located above one end of the lower pressure plate air circuit assembly and is used to provide high-pressure gas and negative-pressure gas.

[0006] The gas supply docking plate is installed on one end of the lower pressure plate gas circuit assembly and is used to transfer the high-pressure gas and negative pressure gas provided by the air pumping assembly.

[0007] The upper pressure plate air circuit assembly is rotatably mounted on the lower pressure plate air circuit assembly and is used to open or close the upper part of the aluminum-plastic shell.

[0008] The upper pressure plate flipping assembly is installed on the other end of the lower pressure plate air passage assembly and is used to drive the upper pressure plate air passage assembly to flip.

[0009] The first vacuum chamber is installed on the lower pressure plate gas circuit assembly and is used to contain negative pressure gas and provide negative pressure gas to the upper pressure plate gas circuit assembly.

[0010] The second vacuum chamber is installed on the lower pressure plate gas circuit assembly and is used to contain negative pressure gas and provide negative pressure gas to the lower pressure plate gas circuit assembly.

[0011] Preferably, the air-inflating assembly includes several air supply connectors, an air supply movable seat, a diverter seat lifting drive device, and an air supply bracket. The diverter seat lifting drive device is mounted on the air supply bracket, the air supply movable seat is mounted on the output end of the diverter seat lifting drive device, several air supply connectors are mounted on one side of the air supply movable seat, the air supply movable seat is provided with several air supply holes, and the several air supply connectors are respectively connected to the corresponding air supply holes.

[0012] Specifically, the gas supply docking plate is provided with several air inlets and two vents. The side of the gas supply docking plate is sequentially equipped with a first straight connector, a second straight connector, a first one-way valve, a second one-way valve, a third straight connector, and an L-shaped connector. The first straight connector, the second straight connector, the first one-way valve, and the second one-way valve are respectively connected to the corresponding air inlets. The top surface of the gas supply docking plate is equipped with a first mechanical toggle valve and a second mechanical toggle valve. The first mechanical toggle valve is connected to the L-shaped connector through one of the vents, and the second mechanical toggle valve is connected to the L-shaped connector through the other vent.

[0013] The first mechanical toggle valve includes a valve body, a push rod, a sealing ring, a push rod spring, a sealing ball, and a sealing ball spring. A longitudinal through hole is provided through the valve body. The longitudinal through hole has, from top to bottom, a movable through hole, an inverted first conical hole, a spring hole, a second conical hole, and a negative pressure interface. A vent is provided on the side wall of the valve body, which communicates with the spring hole. The push rod is slidably mounted in the longitudinal through hole of the valve body. The sealing ring and the push rod spring are sequentially sleeved on the push rod from top to bottom, and the sealing ring and the push rod spring are respectively located in the first conical hole and the spring hole. The upper end of the push rod spring abuts against the middle of the push rod, and the lower end of the push rod spring abuts against the bottom of the spring hole. The sealing ball and the sealing ball spring are mounted in the second conical hole from top to bottom, and the sealing ball is opposite to the bottom of the push rod. The top of the sealing ball spring abuts against the sealing ball, and the bottom of the sealing ball spring abuts against the bottom of the second conical hole.

[0014] The push rod spring provides elastic force to push the push rod upward to reset it;

[0015] The sealing ball spring pushes the sealing ball to block the round hole at the top of the second conical hole, thereby achieving a sealed isolation between the negative pressure interface and the vent.

[0016] The structure and working principle of the second mechanical toggle valve are the same as those of the first mechanical toggle valve.

[0017] Specifically, the lower pressure plate air passage assembly includes several first suction cups, a lower pressure plate, a lower pressure plate air inlet connector and a base plate. The lower pressure plate is mounted on one side of the base plate via a fixing seat. The fixing seat has a fixing seat air passage. Several first suction cups are mounted on the top surface of the lower pressure plate, and the lower pressure plate air inlet connector is mounted on the base plate.

[0018] The base plate is provided with a base plate ventilation channel, and the lower pressure plate air inlet connector is connected to the base plate ventilation channel. The lower pressure plate is provided with a first lower pressure plate ventilation channel and several second lower pressure plate ventilation channels. The first lower pressure plate ventilation channel is connected to several second lower pressure plate ventilation channels. The first lower pressure plate ventilation channel is connected to the fixed seat ventilation channel. The fixed seat ventilation channel is connected to the base plate ventilation channel. Several first suction cups are respectively connected to the second lower pressure plate ventilation channels.

[0019] Specifically, the upper pressure plate flipping assembly includes a gear, a first rotating shaft, a first bearing seat, a rack, a linear guide rail, a cylinder, a fixed plate, a connecting block, and an upper pressure plate air inlet connector. The linear guide rail is mounted on the base plate, the cylinder is mounted on the base plate via the fixed plate, and the output end of the cylinder is connected to one end of the rack via the connecting block. The first bearing seat is mounted on the base plate, the first rotating shaft is horizontally mounted inside the first bearing seat, the gear is sleeved on the first rotating shaft and meshes with the rack for transmission, and the first rotating shaft is provided with a rotating shaft air passage.

[0020] Specifically, the upper pressure plate air circuit assembly includes an upper pressure plate, a tilting plate, a second rotating shaft, a second bearing seat, and several second suction cups. The second bearing seat is installed on the base plate, the second rotating shaft is installed inside the second bearing seat, the tilting plate is connected and installed to the first rotating shaft and the second rotating shaft respectively, the upper pressure plate is installed at the bottom of the tilting plate, and several second suction cups are installed at the bottom of the upper pressure plate.

[0021] The flip plate is provided with a flip plate ventilation channel, and the upper pressure plate is provided with a first upper pressure plate ventilation channel and a number of second upper pressure plate ventilation channels. The flip plate ventilation channel is connected to the first upper pressure plate ventilation channel, the number of second upper pressure plate ventilation channels are respectively connected to the first upper pressure plate ventilation channel, the number of second suction cups are respectively connected to the second upper pressure plate ventilation channels, and the flip plate ventilation channel is connected to the rotating shaft ventilation channel.

[0022] Specifically, a first three-way fitting and an induced check valve are connected between the air supply docking plate and the cylinder. The three joints of the first three-way fitting are connected to the first straight joint, the bypass port of the induced check valve, and the air inlet of the cylinder respectively through the first air pipe. The second straight joint is connected to the main inlet of the induced check valve through the second air pipe. The main outlet of the induced check valve is connected to the exhaust port of the cylinder through the third air pipe.

[0023] Specifically, a second three-way pipe is connected between the gas supply docking plate and the first vacuum chamber. The first vacuum chamber is provided with a fourth straight connector and a fifth straight connector. The three connectors of the second three-way pipe are connected to the L-shaped connector of the gas supply docking plate, the first one-way valve, and the fourth straight connector of the first vacuum chamber through the fourth gas pipe. The fifth straight connector of the first vacuum chamber is connected to the upper pressure plate inlet connector of the upper pressure plate flipping assembly through the fifth gas pipe.

[0024] A third tee fitting is connected between the gas supply docking plate and the second vacuum chamber. The second vacuum chamber is provided with a sixth straight connector and a seventh straight connector. The three connectors of the third tee fitting are connected to the second one-way valve and the third straight connector of the gas supply docking plate and the sixth straight connector of the second vacuum chamber through the sixth gas pipe. The seventh straight connector of the second vacuum chamber is connected to the lower pressure plate inlet connector of the lower pressure plate gas circuit assembly through the seventh gas pipe.

[0025] Preferably, a controller or control system is provided for signal control of components such as the air inflator assembly and the upper pressure plate flipping assembly. The controller is a PLC programmable logic controller, and the PLC programmable logic controller can be a programmable logic controller of model XDS-40T-D, but is not limited thereto.

[0026] Compared with existing technologies, the beneficial effects of this utility model are as follows: its overall structural design enables the supply of high-pressure gas and negative-pressure gas to the gas supply docking plate through the gas supply hole, realizing the supply of gas to the gas supply docking plate for flow transfer, thereby driving the upper pressure plate to flip up or down to open or close the aluminum-plastic shell. It has the advantages of stable adsorption, high adsorption efficiency and good adsorption effect on the aluminum-plastic shell, and it will not affect the top and side edge sealing operation of the aluminum-plastic film shell, ensuring high top and side edge sealing efficiency and good top and side edge sealing effect of the aluminum-plastic film shell. Thus, it effectively solves the problem that the traditional method of using clamps to hold the aluminum-plastic film shell for closing is prone to problems such as the aluminum-plastic film shell clamp not closing firmly and the top and side edge sealing effect of the aluminum-plastic film shell being poor due to the loosening of the aluminum-plastic film shell. Attached Figure Description

[0027] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0028] Figure 1 This is a perspective view of a battery packaging return fixture with an air passage according to the present invention.

[0029] Figure 2 This is a perspective view of an air-inflating component of a battery encapsulation return clamp with an air passage according to the present invention.

[0030] Figure 3 This is an exploded perspective view of the air supply docking plate, induction check valve, first vacuum chamber, second vacuum chamber, and cylinder, etc., of a battery packaging return clamp with air passage according to the present invention.

[0031] Figure 4 This is a three-dimensional cross-sectional view of the first or second mechanical toggle valve of a battery packaging return clamp with an air passage according to the present invention.

[0032] Figure 5This is a top view of the lower pressure plate air passage assembly of a battery packaging return clamp with an air passage according to the present invention.

[0033] Figure 6 This is a perspective view of the lower pressure plate air passage assembly of a battery packaging return clamp with an air passage according to the present invention.

[0034] Figure 7 This is a perspective view of the assembly of the upper pressure plate air passage assembly and the upper pressure plate flipping assembly of a battery packaging return clamp with an air passage according to the present invention.

[0035] Figure 8 This is a top view of the upper pressure plate air passage assembly of a battery packaging return clamp with an air passage according to the present invention.

[0036] Figure 9 This is a top view schematic diagram of the air passage connection of a battery packaging return clamp with an air passage according to the present invention. Detailed Implementation

[0037] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0038] Unless otherwise defined, 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 invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0039] Reference Figure 1 As shown, the present invention provides a battery packaging return fixture with an air passage, comprising a lower pressure plate air passage assembly 1, an air pumping assembly 2 disposed above one end of the lower pressure plate air passage assembly 1, an air supply docking plate 3 mounted on one end of the lower pressure plate air passage assembly 1, an upper pressure plate air passage assembly 4 rotatably mounted on the lower pressure plate air passage assembly 1, an upper pressure plate flipping assembly 5 mounted on the other end of the lower pressure plate air passage assembly 1, and a first vacuum chamber 61 and a second vacuum chamber 62 respectively mounted on the lower pressure plate air passage assembly 1.

[0040] By adopting the above technical solution, the lower pressure plate air circuit assembly 1 is used to clamp the bottom of the aluminum-plastic shell, the air pumping assembly 2 is used to provide high-pressure gas and negative-pressure gas, the air supply docking plate 3 is used to transfer the high-pressure gas and negative-pressure gas provided by the air pumping assembly 2, the upper pressure plate air circuit assembly 4 is used to open or close the upper part of the aluminum-plastic shell, the upper pressure plate flipping assembly 5 is used to drive the upper pressure plate air circuit assembly 4 to flip, the first vacuum chamber 61 is used to contain negative-pressure gas and provide negative-pressure gas to the upper pressure plate air circuit assembly 4, and the second vacuum chamber 62 is used to contain negative-pressure gas and provide negative-pressure gas to the lower pressure plate air circuit assembly 1.

[0041] Reference Figure 2 As shown, the air-inflating assembly 2 includes several air supply connectors 20, an air supply movable seat 21, a diverter seat lifting drive device 22, and an air supply bracket 23. The diverter seat lifting drive device 22 is mounted on the air supply bracket 23, the air supply movable seat 21 is mounted on the output end of the diverter seat lifting drive device 22, several air supply connectors 20 are mounted on one side of the air supply movable seat 21, and the air supply movable seat 21 is provided with several air supply holes 24. The several air supply connectors 20 are respectively connected to the corresponding air supply holes 24.

[0042] Reference Figure 1 and Figure 2 As shown, by adopting the above technical solution, since the gas supply movable seat 21 is connected to an external gas source through the gas supply connector 20, the diverter seat lifting drive device 22 drives the gas supply movable seat 21 to move closer to the gas supply docking plate 3 and fit into the gas supply docking plate 3. The gas supply movable seat 21 supplies high-pressure gas and negative-pressure gas to the gas supply docking plate 3 through the gas supply hole 24, thereby realizing the supply of gas to the gas supply docking plate 3 that is flowing and transferring.

[0043] In this embodiment, the distributor seat lifting drive device 22 is configured as a cylinder 55.

[0044] Reference Figure 3 As shown, the gas supply docking plate 3 is provided with a plurality of air inlets 30 and two vents 31. The side of the gas supply docking plate 3 is sequentially equipped with a first straight connector 32, a second straight connector 33, a first one-way valve 35, a second one-way valve 36, a third straight connector 34, and an L-shaped connector 37. The first straight connector 32, the second straight connector 33, the first one-way valve 35, and the second one-way valve 36 are respectively connected to the corresponding air inlets 30. The top surface of the gas supply docking plate 3 is equipped with a first mechanical toggle valve 38 and a second mechanical toggle valve 39. The first mechanical toggle valve 38 is connected to the L-shaped connector 37 through one of the vents 31, and the second mechanical toggle valve 39 is connected to the L-shaped connector 37 through the other vent 31.

[0045] Reference Figure 4As shown, the first mechanical toggle valve 38 includes a valve body 380, a push rod 381, a sealing ring 382, ​​a push rod spring 383, a sealing ball 384, and a sealing ball spring 385. A longitudinal through-hole 386 extends through the valve body 380. Within the longitudinal through-hole 386, from top to bottom, are a movable through-hole 387, an inverted first conical hole 388, a spring hole 389, a second conical hole 3891, and a negative pressure port 3892. A vent 3893 communicating with the spring hole 389 is provided on the side wall of the valve body 380. The push rod 381 is longitudinally slidably mounted within the longitudinal through-hole 386 of the valve body 380. The sealing ring 382 and the push rod spring 383 extend from the top... The sealing ring 382 and the push rod spring 383 are sequentially sleeved on the pressing push rod 381 from top to bottom, and are respectively located in the first conical hole 388 and the spring hole 389. The upper end of the push rod spring 383 abuts against the middle of the pressing push rod 381, and the lower end of the push rod spring 383 abuts against the bottom of the spring hole 389. The sealing ball 384 and the sealing ball spring 385 are installed from top to bottom in the second conical hole 3891, and the sealing ball 384 is opposite to the bottom of the pressing push rod 381. The push rod spring 383 provides elastic force for the pressing push rod 381 to return to its upward position. The structure and working principle of the second mechanical toggle valve 39 are the same as those of the first mechanical toggle valve 38.

[0046] By adopting the above technical solution, the diverter seat lifting drive device 22 drives the air supply movable seat 21 to move closer to the air supply docking plate 3 and fit against the air supply docking plate 3. Several air inlets 30 are respectively connected to the corresponding air supply holes 24 of the air supply movable seat 21. The external air source provides high-pressure gas or negative-pressure gas to the corresponding air inlets 30 through the air supply connector 20 and the air supply holes 24. The negative pressure interface 3892 is connected to the vacuum negative pressure. The bottom of the sealing ball spring 385 abuts against the bottom of the second conical hole 3891. The sealing ball spring 385 pushes the sealing ball 384 to abut against the round hole at the top of the second conical hole 3891, realizing the isolation and sealing between the negative pressure interface 3892 and the vent 3893. The push rod spring 3 The bottom of 83 abuts against the bottom of the spring hole 389, and the top of the push rod spring 383 abuts against the middle of the pressing push rod 381. The push rod spring 383 provides an upward elastic force to the pressing push rod 381 and applies a downward pushing force to the pressing push rod 381. The pressing push rod 381 drives the sealing ring 382 to move down. The sealing ring 382 abuts against the bottom of the first conical hole 388 to achieve a seal between the first conical hole 388 and the spring hole 389. The pressing push rod 381 pushes the sealing ball 384 down, and the sealing ball 384 separates from the top wall of the second conical hole 3891, so that the vent 3893 and the negative pressure interface 3892 can be connected for ventilation, thereby realizing negative pressure relief of the negative pressure interface 3892.

[0047] Reference Figure 5 and Figure 6As shown, the lower pressure plate air passage assembly 1 includes several first suction cups 11, a lower pressure plate 12, a lower pressure plate air inlet connector 13, and a base plate 14. The lower pressure plate 12 is mounted on one side of the base plate 14 via a fixing seat 18. The fixing seat 18 has a fixing seat air passage 19. Several first suction cups 11 are mounted on the top surface of the lower pressure plate 12, and the lower pressure plate air inlet connector 13 is mounted on the base plate 14. The base plate 14 has a base plate air passage 15. The pressure plate air inlet connector 13 is connected to the bottom plate air passage 15. The lower pressure plate 12 is provided with a first lower pressure plate air passage 16 and several second lower pressure plate air passages 17. The first lower pressure plate air passage 16 is connected to several second lower pressure plate air passages 17. The first lower pressure plate air passage 16 is connected to the fixed seat air passage 19. The fixed seat air passage 19 is connected to the bottom plate air passage 15. Several first suction cups 11 are respectively connected to the second lower pressure plate air passages 17.

[0048] By adopting the above technical solution, the lower pressure plate air inlet connector 13 provides negative pressure gas to the bottom plate air passage 15, the first lower pressure plate air passage 16, several second lower pressure plate air passages 17 and several first suction cups 11. The bottom of the aluminum-plastic shell is clamped by several first suction cups 11 to fix the aluminum-plastic shell. The fixing effect is good and it avoids hindering the top and side edge sealing of the aluminum-plastic shell.

[0049] Reference Figures 6 to 8 As shown, the upper pressure plate flipping assembly 5 includes a gear 50, a first rotating shaft 51, a first bearing seat 52, a rack 53, a linear guide rail 54, a cylinder 55, a fixing plate 56, a connecting block 57, and an upper pressure plate air inlet connector 58. The linear guide rail 54 is mounted on the base plate 14. The cylinder 55 is mounted on the base plate 14 via the fixing plate 56. The output end of the cylinder 55 is connected to one end of the rack 53 via the connecting block 57. The first bearing seat 52 is mounted on the base plate 14. The first rotating shaft 51 is horizontally mounted inside the first bearing seat 52. The gear 50 is sleeved on the first rotating shaft 51 and meshes with the rack 53 for transmission. The first rotating shaft 51 is provided with a rotating shaft air passage 59.

[0050] By adopting the above technical solution, the cylinder 55 drives the first rotating shaft 51 to rotate through the rack 53 and gear 50, and provides negative pressure gas to the rotating shaft air passage 59 through the upper pressure plate air inlet joint 58.

[0051] Reference Figure 7 and Figure 8As shown, the upper pressure plate air passage assembly 4 includes an upper pressure plate 41, a tilting plate 42, a second rotating shaft 43, a second bearing seat 44, and several second suction cups 45. The second bearing seat 44 is mounted on the base plate 14, and the second rotating shaft 43 is mounted inside the second bearing seat 44. The tilting plate 42 is connected and installed to the first rotating shaft 51 and the second rotating shaft 43 respectively. The upper pressure plate 41 is mounted at the bottom of the tilting plate 42, and several second suction cups 45 are mounted at the bottom of the upper pressure plate 41. The flip plate 42 is provided with a flip plate ventilation channel 46, and the upper pressure plate 41 is provided with a first upper pressure plate ventilation channel 47 and a plurality of second upper pressure plate ventilation channels 48. The flip plate ventilation channel 46 is connected to the first upper pressure plate ventilation channel 47, the plurality of second upper pressure plate ventilation channels 48 are respectively connected to the first upper pressure plate ventilation channel 47, the plurality of second suction cups 45 are respectively connected to the second upper pressure plate ventilation channels 48, and the flip plate ventilation channel 46 is connected to the rotating shaft ventilation channel 59.

[0052] By adopting the above technical solution, the upper pressure plate air inlet connector 58 provides negative pressure gas to the rotating shaft air passage 59, the flip plate air passage 46, the first upper pressure plate air passage 47, several second upper pressure plate air passages 48 and several second suction cups 45. The top of the aluminum-plastic shell is clamped by several second suction cups 45. The cylinder 55 drives the first rotating shaft 51 to rotate through the rack 53 and the gear 50. The first rotating shaft 51 drives the upper pressure plate 41 to flip up or down through the flip plate 42 to open or close the aluminum-plastic shell.

[0053] Reference Figure 3 and Figure 9 As shown, a first three-way fitting 71 and an induction check valve 8 are connected between the air supply docking plate 3 and the cylinder 55. The three joints of the first three-way fitting 71 are connected to the first straight connector 32, the bypass port 81 of the induction check valve 8 and the air inlet 551 of the cylinder 55 respectively through the first air pipe. The second straight connector 33 is connected to the main inlet 82 of the induction check valve 8 through the second air pipe. The main outlet 83 of the induction check valve 8 is connected to the exhaust port 552 of the cylinder 55 through the third air pipe.

[0054] By adopting the above technical solution, the air pumping component 2 provides high-pressure gas to the first straight connector 32 or the second straight connector 33 of the air supply docking plate 3. When the air supply docking plate 3 does not provide high-pressure gas to the second straight connector 33, the air supply docking plate 3 provides high-pressure gas to the bypass port 81 of the induction check valve 8 through the first straight connector 32 and the first tee fitting 71. The main outlet 83 and the main inlet 82 of the induction check valve 8 are in a mutually conductive state. The air supply docking plate 3 supplies high-pressure gas to the first tee fitting 71 through the first straight connector 32. The first tee fitting 71 provides high-pressure gas to the air inlet 551 of the cylinder 55. The cylinder 55 pushes the rack 53 to move, thereby driving the gear 50 to rotate. The gear 50 drives the first rotating shaft 51 and the flipping plate 42 to flip upward. After the second suction cup 45 clamps the top of the aluminum-plastic shell, the upper pressure plate 41 flips with the flipping plate 42. The second suction cup 45 is driven to flip upwards, thereby opening the aluminum-plastic shell. When the gas supply docking plate 3 does not supply high-pressure gas to the first straight connector 32, the first three-way fitting 71, and the bypass port 81 of the induction check valve 8, the induction check valve 8 is in a one-way flow state from the main inlet 82 to the main outlet 83. When the gas supply docking plate 3 supplies high-pressure gas to the second straight connector 33, the main inlet 82 and the main outlet 83 of the induction check valve 8, and the exhaust port 552 of the cylinder 55, the cylinder 55 exhausts gas through the air inlet 30. The upper pressure plate 41 flips downwards under the drive of the cylinder 55 to press the aluminum-plastic shell. Since the main outlet 83 of the induction check valve 8 is in a blocked state from the main inlet 82, the high-pressure gas supplied to the cylinder 55 through the exhaust port 552 is in a high-pressure state. The cylinder 55 always drives the upper pressure plate 41 to press the aluminum-plastic shell downwards, keeping the aluminum-plastic shell in a tightly closed state.

[0055] Reference Figure 3 and Figure 9 As shown, a second three-way fitting 72 connects the gas supply docking plate 3 and the first vacuum chamber 61. The first vacuum chamber 61 is provided with a fourth straight connector 91 and a fifth straight connector 92. The three connectors of the second three-way fitting 72 are connected to the L-shaped connector 37 of the gas supply docking plate 3, the first one-way valve 35, and the fourth straight connector 91 of the first vacuum chamber 61 through the fourth gas pipe. The fifth straight connector 92 of the first vacuum chamber 61 is connected to the upper pressure plate inlet connector 58 of the upper pressure plate flipping assembly 5 through the fifth gas pipe. A third three-way pipe 73 is connected between the gas supply docking plate 3 and the second vacuum chamber 62. The second vacuum chamber 62 is provided with a sixth straight connector 93 and a seventh straight connector 94. The three connectors of the third three-way pipe 73 are connected to the second one-way valve 36 and the third straight connector 34 of the gas supply docking plate 3 and the sixth straight connector 93 of the second vacuum chamber 62 respectively through the sixth air pipe. The seventh straight connector 94 of the second vacuum chamber 62 is connected to the lower pressure plate air inlet connector 13 of the lower pressure plate air circuit assembly 1 through the seventh air pipe.

[0056] By adopting the above technical solution, the air pump assembly 2 simultaneously provides negative pressure gas to the first one-way valve 35 and the second one-way valve 36 of the air supply docking plate 3. The first one-way valve 35 provides negative pressure gas to the second three-way fitting 72, the first vacuum chamber 61, and the upper pressure plate air inlet connector 58, so that the second suction cup 45 of the upper pressure plate 41 can hold the top of the aluminum-plastic cover tightly. The second one-way valve 36 provides negative pressure gas to the third three-way fitting 73, the second vacuum chamber 62, and the lower pressure plate air inlet connector 13, so that the first suction cup 11 of the lower pressure plate 12 can hold the bottom of the aluminum-plastic cover tightly. Pressing the first machine Mechanical toggle valve 38 and second mechanical toggle valve 39 release negative pressure to the first vacuum chamber 61 and the second vacuum chamber 62 respectively. The second suction cup 45 of the upper pressure plate 41 and the first suction cup 11 of the lower pressure plate 12 loosen the top and bottom of the aluminum-plastic cover respectively. The first vacuum chamber 61 and the second vacuum chamber 62 provide stable negative pressure to the second suction cup 45 of the upper pressure plate 41 and the first suction cup 11 of the lower pressure plate 12 respectively, maintaining the stability of the first suction cup 11 and the second suction cup 45 in clamping the aluminum-plastic cover. It has the advantages of high clamping efficiency and good clamping effect of aluminum-plastic cover.

[0057] Its overall structural design replaces clamping by suctioning the top and bottom of the aluminum-plastic cap, enabling a stable suction of the aluminum-plastic cap without affecting the top and side sealing operation of the aluminum-plastic film shell. It effectively solves the problems that the clamping method of using clamps to control the shell closure is prone to cause the aluminum-plastic film shell clamps to close loosely and affect the top and side sealing effect of the aluminum-plastic film shell during the top and side sealing process.

[0058] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery packaging return fixture with an air passage, characterized in that: Includes a lower pressure plate air passage assembly for clamping the bottom of the aluminum-plastic shell; An air pumping unit is located above one end of the lower pressure plate air circuit assembly and is used to provide high-pressure gas and negative-pressure gas. The gas supply docking plate is installed on one end of the lower pressure plate gas circuit assembly and is used to transfer the high-pressure gas and negative pressure gas provided by the air pumping assembly. The upper pressure plate air circuit assembly is rotatably mounted on the lower pressure plate air circuit assembly and is used to open or close the upper part of the aluminum-plastic shell. The upper pressure plate flipping assembly is installed on the other end of the lower pressure plate air passage assembly and is used to drive the upper pressure plate air passage assembly to flip. The first vacuum chamber is installed on the lower pressure plate gas circuit assembly and is used to contain negative pressure gas and provide negative pressure gas to the upper pressure plate gas circuit assembly. The second vacuum chamber is installed on the lower pressure plate gas circuit assembly and is used to contain negative pressure gas and provide negative pressure gas to the lower pressure plate gas circuit assembly.

2. The battery packaging return fixture with an air passage according to claim 1, characterized in that: The air-inflating assembly includes several air supply connectors, an air supply movable seat, a diverter seat lifting drive device, and an air supply bracket. The diverter seat lifting drive device is mounted on the air supply bracket, and the air supply movable seat is mounted on the output end of the diverter seat lifting drive device. Several air supply connectors are mounted on one side of the air supply movable seat, and the air supply movable seat has several air supply holes. The several air supply connectors are respectively connected to the corresponding air supply holes.

3. A battery packaging return fixture with an air passage according to claim 2, characterized in that: The gas supply docking plate is provided with several air inlets and two vents. The side of the gas supply docking plate is sequentially equipped with a first straight connector, a second straight connector, a first one-way valve, a second one-way valve, a third straight connector, and an L-shaped connector. The first straight connector, the second straight connector, the first one-way valve, and the second one-way valve are respectively connected to the corresponding air inlets. The top surface of the gas supply docking plate is respectively equipped with a first mechanical toggle valve and a second mechanical toggle valve. The first mechanical toggle valve is connected to the L-shaped connector through one of the vents, and the second mechanical toggle valve is connected to the L-shaped connector through the other vent. The first mechanical toggle valve includes a valve body, a push rod, a sealing ring, a push rod spring, a sealing ball, and a sealing ball spring. A longitudinal through hole is provided through the valve body. The longitudinal through hole has, from top to bottom, a movable through hole, an inverted first conical hole, a spring hole, a second conical hole, and a negative pressure interface. A vent is provided on the side wall of the valve body, which communicates with the spring hole. The push rod is slidably mounted in the longitudinal through hole of the valve body. The sealing ring and the push rod spring are sequentially sleeved on the push rod from top to bottom, and the sealing ring and the push rod spring are respectively located in the first conical hole and the spring hole. The upper end of the push rod spring abuts against the middle of the push rod, and the lower end of the push rod spring abuts against the bottom of the spring hole. The sealing ball and the sealing ball spring are mounted in the second conical hole from top to bottom, and the sealing ball is opposite to the bottom of the push rod. The top of the sealing ball spring abuts against the sealing ball, and the bottom of the sealing ball spring abuts against the bottom of the second conical hole. The push rod spring provides elastic force to push the push rod upward to reset; The sealing ball spring pushes the sealing ball to block the round hole at the top of the second conical hole, thereby achieving a sealed isolation between the negative pressure interface and the vent. The structure and working principle of the second mechanical toggle valve are the same as those of the first mechanical toggle valve.

4. A battery packaging return fixture with an air passage according to claim 3, characterized in that: The lower pressure plate air circuit assembly includes several first suction cups, a lower pressure plate, a lower pressure plate air inlet connector and a base plate. The lower pressure plate is mounted on one side of the base plate via a fixing seat. The fixing seat has a fixing seat air passage. Several first suction cups are mounted on the top surface of the lower pressure plate, and the lower pressure plate air inlet connector is mounted on the base plate. The base plate is provided with a base plate ventilation channel, and the lower pressure plate air inlet connector is connected to the base plate ventilation channel. The lower pressure plate is provided with a first lower pressure plate ventilation channel and several second lower pressure plate ventilation channels. The first lower pressure plate ventilation channel is connected to several second lower pressure plate ventilation channels. The first lower pressure plate ventilation channel is connected to the fixed seat ventilation channel. The fixed seat ventilation channel is connected to the base plate ventilation channel. Several first suction cups are respectively connected to the second lower pressure plate ventilation channels.

5. A battery packaging return fixture with an air passage according to claim 4, characterized in that: The upper pressure plate flipping assembly includes a gear, a first rotating shaft, a first bearing seat, a rack, a linear guide rail, a cylinder, a fixed plate, a connecting block, and an upper pressure plate air inlet connector. The linear guide rail is mounted on the base plate, the cylinder is mounted on the base plate via the fixed plate, and the output end of the cylinder is connected to one end of the rack via the connecting block. The first bearing seat is mounted on the base plate, the first rotating shaft is horizontally mounted inside the first bearing seat, the gear is sleeved on the first rotating shaft and meshes with the rack for transmission, and the first rotating shaft is provided with a rotating shaft air passage.

6. A battery packaging return fixture with an air passage according to claim 5, characterized in that: The upper pressure plate air circuit assembly includes an upper pressure plate, a tilting plate, a second rotating shaft, a second bearing seat, and several second suction cups. The second bearing seat is installed on the base plate, the second rotating shaft is installed inside the second bearing seat, the tilting plate is connected and installed to the first rotating shaft and the second rotating shaft respectively, the upper pressure plate is installed at the bottom of the tilting plate, and several second suction cups are installed at the bottom of the upper pressure plate. The flip plate is provided with a flip plate ventilation channel, and the upper pressure plate is provided with a first upper pressure plate ventilation channel and a number of second upper pressure plate ventilation channels. The flip plate ventilation channel is connected to the first upper pressure plate ventilation channel, the number of second upper pressure plate ventilation channels are respectively connected to the first upper pressure plate ventilation channel, the number of second suction cups are respectively connected to the second upper pressure plate ventilation channels, and the flip plate ventilation channel is connected to the rotating shaft ventilation channel.

7. A battery packaging return fixture with an air passage according to claim 6, characterized in that: The air supply docking plate is connected to the cylinder by a first three-way pipe and an induced check valve. The three joints of the first three-way pipe are connected to the first straight joint, the bypass port of the induced check valve and the air inlet of the cylinder respectively through the first air pipe. The second straight joint is connected to the main inlet of the induced check valve through the second air pipe. The main outlet of the induced check valve is connected to the exhaust port of the cylinder through the third air pipe.

8. A battery packaging return fixture with an air passage according to claim 7, characterized in that: A second three-way pipe is connected between the gas supply docking plate and the first vacuum chamber. The first vacuum chamber is provided with a fourth straight connector and a fifth straight connector. The three connectors of the second three-way pipe are connected to the L-shaped connector of the gas supply docking plate, the first one-way valve, and the fourth straight connector of the first vacuum chamber through the fourth air pipe. The fifth straight connector of the first vacuum chamber is connected to the upper pressure plate inlet connector of the upper pressure plate flipping assembly through the fifth air pipe. A third tee fitting is connected between the gas supply docking plate and the second vacuum chamber. The second vacuum chamber is provided with a sixth straight connector and a seventh straight connector. The three connectors of the third tee fitting are connected to the second one-way valve and the third straight connector of the gas supply docking plate and the sixth straight connector of the second vacuum chamber through the sixth gas pipe. The seventh straight connector of the second vacuum chamber is connected to the lower pressure plate inlet connector of the lower pressure plate gas circuit assembly through the seventh gas pipe.

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