A heat-shrinkable packaging device for lithium battery assembly using heat-shrinkable film.

Abstract

This invention relates to the field of battery packaging and discloses a heat-shrinkable packaging device for lithium battery assembly, including a conveying mechanism, a sealing and cutting mechanism on the frame of the conveying mechanism, a heat shrink oven on one side of the conveying mechanism, and a material handling mechanism between the conveying mechanism and the heat shrink oven. The material handling mechanism includes a cantilever beam, a pneumatic telescopic rod, a connecting plate, a limiting plate, a conical channel, and a channel adjustment assembly. By setting up the material handling mechanism, this invention prevents the lithium battery wrapped in heat-shrinkable film from being positioned too close to the edges during the conveying process. This could cause the end of the lithium battery with the wire harness to easily get stuck in the edge gap of the heat shrink oven during movement, ultimately resulting in the heat shrinkable film on the outside of the lithium battery being damaged due to excessive heating time in the heat shrink oven, which would have an adverse effect on the final packaging quality of the lithium battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery packaging, in particular to a heat-shrinkable film heat-shrinkable packaging equipment for lithium battery assembly. BACKGROUND

[0002] When assembling lithium batteries, multiple batteries need to be placed together, and then packaged uniformly by a heat-shrinkable film packaging machine. This can not only meet the functions of moisture-proof, dust-proof, touch-proof, and transparent display, but also increase the product appearance attractiveness. It can also be used to replace various paper boxes, saving packaging costs and meeting the packaging trend.

[0003] Common heat-shrinkable film packaging equipment generally first passes through sealing and cutting, and then is directly sent into a heat-shrinkable heating furnace for shrinking. Since the heating temperature in the heat-shrinkable heating furnace has a greater impact on the heat-shrinkable film, if the heating is too abrupt and the temperature is insufficient, it will cause uneven heat-shrinking or wrinkles, resulting in gaps between the packaged lithium battery pack and the outer packaging film, which is prone to shaking. If the heating time is too long and the temperature is too high, it will cause the heat-shrinkable film to over-shrink and locally break, resulting in packaging quality problems.

[0004] Some lithium battery assemblies have wire harnesses. Therefore, when the heat-shrinkable film is packaged, if the lithium battery is in the edge area when entering the heat-shrinkable furnace, the wire harness end is easily stuck in the edge gap of the heat-shrinkable furnace, causing the lithium battery to be retained in the heat-shrinkable furnace for a long time, which is prone to cause local damage to the shrink film due to excessive heating, resulting in packaging quality problems. SUMMARY

[0005] The purpose of the present application is to provide a heat-shrinkable film heat-shrinkable packaging equipment for lithium battery assembly to solve the above technical problems.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] A heat-shrinkable film heat-shrinkable packaging equipment for lithium battery assembly, comprising a conveying mechanism, a sealing and cutting mechanism is arranged on the rack of the conveying mechanism, a heat-shrinkable furnace is arranged on one side of the conveying mechanism, and a material arranging mechanism is arranged between the conveying mechanism and the heat-shrinkable furnace.

[0008] Through the above technical solution, the lithium battery is always in the middle area, preventing the wire harness end from being accidentally stuck in the edge gap of the heat-shrinkable furnace, and ensuring the normal movement of the lithium battery and the normal heat-shrinking of the outer heat-shrinkable film.

[0009] As a further technical solution, the material arranging mechanism comprises:

[0010] A suspension beam is fixed on the rack of the conveying mechanism.

[0011] A pneumatic telescopic rod is fixedly installed at one end on the bottom surface of the cantilever beam;

[0012] A connecting plate is horizontally fixedly arranged on the bottom end of the pneumatic telescopic rod;

[0013] Two limiting plates are symmetrically arranged above the conveying mechanism, and are installed on the bottom surface of the connecting plate;

[0014] A tapered channel is formed between the two limiting plates, and the smaller end of the two ends of the tapered channel faces the middle position of the heat shrinkage furnace;

[0015] A channel adjusting assembly is used to adjust the size of the tapered channel.

[0016] The above technical solution provides a specific structure of the material sorting mechanism, and achieves the purpose of controlling the lithium battery to be in the middle position.

[0017] As a further technical solution, the channel adjusting assembly comprises:

[0018] A lead screw is horizontally placed and rotationally installed on the bottom surface of the connecting plate, and the screw directions of the two ends of the lead screw are oppositely arranged;

[0019] A light rod is arranged in parallel with the lead screw, and the two ends of the light rod are fixedly installed on the bottom surface of the connecting plate;

[0020] Two sliding seats are provided, the sliding seats are sleeved on the lead screw and the light rod, and the sliding seats are screw transmission connected with the lead screw, and the bottom end of the sliding seat is detachably fixedly connected with the corresponding limiting plate;

[0021] A driving source is installed on the connecting plate and is transmission connected with one end of the lead screw.

[0022] The above technical solution provides a specific structure of the channel adjusting assembly, and achieves the purpose of actively pushing the lithium battery to move to the middle position by the tapered channel.

[0023] As a further technical solution, the side close to each other of the two limiting plates is fixedly provided with an air bag layer.

[0024] The above technical solution provides an air bag layer arranged to flexibly process the side close to each other of the two limiting plates, so as to change the hard contact of the limiting plate and the lithium battery into flexible contact, and plays a role in preventing the heat shrinkage film wrapped outside from being damaged.

[0025] As a further technical scheme, one side of the connecting plate towards the heat shrinkage furnace is fixedly provided with a cantilever, and a separation mechanism is installed on the cantilever, which is used for separating the conveyed lithium batteries.

[0026] Through the above technical scheme, the separation mechanism is used to reduce the problem that the front and rear lithium batteries are too close, and the close parts are blocked and unevenly heated after entering the heat shrinkage furnace, resulting in poor local shrinkage effect.

[0027] As a further technical scheme, the separation mechanism comprises:

[0028] A cross is rotatably installed at the center of the cantilever;

[0029] A through groove is formed at the center of the cantilever and the cross, and a spiral groove is formed on the inner wall of the through groove at the center of the cross;

[0030] A plug rod is fixedly provided on one side of the slide at one end through a connecting rod, and the other end is inserted into the through groove;

[0031] A protrusion is fixedly provided on the outer circle of the plug rod, and the protrusion can be inserted into the spiral groove.

[0032] Through the above technical scheme, the specific structure of the separation mechanism is given, and the purpose of leaving enough space for the lithium batteries before entering the heat shrinkage furnace is achieved.

[0033] As a further technical scheme, an extension slot is formed on the plug rod, a return spring is arranged in the extension slot, the protrusion is provided in a T-shaped structure, and the protrusion is slidingly connected in the extension slot;

[0034] The side of the protrusion close to the connecting rod is provided in an arc surface, and the side away from the connecting rod is provided in a vertical surface.

[0035] As a further technical scheme, a sealing curtain is installed at the inlet and outlet of the heat shrinkage furnace, the sealing curtain comprises a rotating shaft, a plurality of sleeves are sleeved on the rotating shaft, a sealing strip is integrally arranged at the bottom end of the sleeve, and the sealing strip and the sleeve can freely swing on the rotating shaft.

[0036] Through the above technical scheme, the sealing curtain is arranged, so as to lock the heat of the heat shrinkage furnace and reduce the heat overflow in the heat shrinkage furnace; at the same time, the sealing curtain is arranged in a combined structure, so as to automatically push the sealing strip with a width according to the size of the entering lithium battery, and the remaining part remains in a closed state. Compared with the integrated sealing curtain, the sealing curtain needs to be fully swung open regardless of the size of the entering lithium battery, which obviously reduces unnecessary heat loss.

[0037] As a further technical solution, the bottom end of the sealing strip is embedded with a magnet one, the end of the cross is embedded with a magnet two, and the magnet one and the magnet two are magnetically attracted.

[0038] As a further technical solution, the bottom end of the sealing strip is embedded with a magnet one, the end of the cross is embedded with a magnet two, and the magnet one and the magnet two are magnetically repelled.

[0039] The beneficial effects of the present application are:

[0040] The present application sets up a material arranging mechanism for position limiting of the lithium battery after the heat shrinkage film of the package in the conveying process, so that the lithium battery entering the heat shrinkage furnace is in the middle area, reduces the situation that the heating time of the wire harness end of the lithium battery is too long due to being stuck, causes the heat shrinkage film package to be damaged, and affects the lithium battery package quality;

[0041] The present application drives the cross in the separation mechanism to rotate counterclockwise by ninety degrees through the action of the two limiting plates to exactly complete the action of pushing out a lithium battery, so as to control the middle position and the front and rear spacing of the lithium battery, and reduce the problem probability that the part close to the front and rear two lithium batteries is blocked and is not uniformly heated after entering the heat shrinkage furnace to heat, resulting in poor local shrinkage effect;

[0042] The present application can lock the heat of the heat shrinkage furnace and reduce the heat overflow in the heat shrinkage furnace through the setting of the sealing curtain, and sets the sealing curtain into a combined structure, so that the sealing strip with the width suitable for the specification and size of the lithium battery can be automatically pushed, and the remaining part is kept in a closed state, which obviously reduces unnecessary heat loss compared with the integrated sealing curtain that needs to be fully swung open regardless of the specification of the lithium battery entering. BRIEF DESCRIPTION OF DRAWINGS

[0043] The present application will be further described below in combination with the drawings.

[0044] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0045] Figure 2 It is a three-dimensional structure schematic view of the present application. Figure 1

[0046] Figure 3 It is a three-dimensional structure schematic view of the material arranging mechanism in the present application.

[0047] Figure 4 It is a three-dimensional structure schematic view of the sealing curtain in the present application.

[0048] Figure 5 ​A structure diagram of the separating mechanism in the application is shown in the figure.

[0049] Figure 6 A structure diagram of the separating mechanism in the application is shown in the figure. Figure 5 A local enlarged diagram at A in the figure.

[0050] BRIEF DESCRIPTION OF DRAWINGS: 1, conveying mechanism; 2, heat shrinkage furnace; 3, material arranging mechanism; 31, suspending beam; 32, pneumatic telescopic rod; 33, connecting plate; 34, limiting plate; 35, conical channel; 36, channel adjusting assembly; 361, screw rod; 362, light rod; 363, sliding seat; 364, driving source; 4, air bag layer; 5, cantilever; 6, separating mechanism; 61, cross; 611, telescopic groove; 612, reset spring; 62, through groove; 63, spiral groove; 64, inserting rod; 65, protrusion; 651, arc surface; 652, vertical surface; 7, sealing curtain; 71, rotating shaft; 72, sleeve ring; 73, sealing strip; 8, magnet one; 9, magnet two. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0052] Please refer to Figures 1-6 The application is a heat shrinkage film heat shrinkage packaging equipment for lithium battery assembly, Embodiment 1

[0053] The conveying mechanism 1 is provided with a sealing and cutting mechanism on the rack, one side of the conveying mechanism 1 is provided with a heat shrinkage furnace 2, and a material arranging mechanism 3 is arranged between the conveying mechanism 1 and the heat shrinkage furnace 2; the material arranging mechanism 3 is used for controlling the lithium battery to be in a central position when entering the heat shrinkage furnace.

[0054] The material arranging mechanism 3 comprises:

[0055] The suspending beam 31 is fixed on the rack of the conveying mechanism 1;

[0056] The pneumatic telescopic rod 32 is fixedly installed at one end on the bottom surface of the suspending beam 31;

[0057] The connecting plate 33 is horizontally fixedly arranged on the bottom end of the pneumatic telescopic rod 32;

[0058] Two limiting plates 34 are symmetrically arranged above the conveying mechanism 1, and are installed on the bottom surface of the connecting plate 33;

[0059] A tapered channel 35 is formed between the two limiting plates 34, and the smaller end of the tapered channel 35 is located towards the middle of the heat shrinkage furnace 2;

[0060] A channel adjusting assembly 36 is arranged for adjusting the size of the tapered channel 35.

[0061] In order to prevent the lithium battery wrapped with heat shrinkage film from being too close to the two side edges during the conveying process of the conveying mechanism 1, so that the end of the lithium battery with the wire harness is easily stuck in the edge gap of the heat shrinkage furnace 2 during the movement process, and finally the heat shrinkage film on the outer side of the lithium battery is heated for too long in the heat shrinkage furnace, resulting in damage to the heat shrinkage film and affecting the packaging quality of the lithium battery, the material arranging mechanism 3 is added in the embodiment, which is used for limiting the position of the lithium battery wrapped with heat shrinkage film during the conveying process, so that the lithium battery entering the heat shrinkage furnace 2 is located in the middle area, and the situation that the heating time is too long due to the sticking of the wire harness end of the lithium battery, resulting in damage to the heat shrinkage film packaging and affecting the packaging quality of the lithium battery, is reduced.

[0062] Specifically, the material arranging mechanism 3 works, the pneumatic telescopic rod 32 on the lower surface of the suspension beam 31 is elongated downward, thereby driving the connecting plate 33 connected at the bottom to move downward, so that the limiting plate 34 below the connecting plate 33 moves downward synchronously until the bottom surface of the limiting plate 34 is close to the position of the upper surface of the conveying mechanism 1, a gap of 2-5 cm is left between the bottom surface of the limiting plate 34 and the upper surface of the conveying mechanism 1, so as to avoid interference with the conveying process of the conveying mechanism 1; the two limiting plates 34 are arranged in a tapered manner, at this time the tapered channel 35 formed thereby allows the lithium battery wrapped with heat shrinkage film to enter from the large end and exit from the small end, and the center of the tapered channel 35 is the same as the center of the conveying mechanism 1, so as to guide the lithium battery wrapped with heat shrinkage film, so that the lithium battery in the conveying state is passively concentrated in the middle part, thereby achieving the purpose of limiting the position of the lithium battery, and the lithium battery entering the heat shrinkage furnace 2 is also necessarily located in the middle position, thereby greatly reducing the adverse effects and packaging quality problems caused by the sticking of the wire harness end of the lithium battery.

[0063] The channel adjusting assembly 36 comprises:

[0064] A screw rod 361 is horizontally arranged and rotatably installed on the bottom surface of the connecting plate 33, and the screw directions of the two ends of the screw rod 361 are oppositely arranged;

[0065] A light rod 362 is arranged in parallel with the lead screw 361, and both ends of the light rod 362 are fixedly installed on the bottom surface of the connecting plate 33.

[0066] Two sliding seats 363 are arranged, the sliding seats 363 are sleeved on the lead screw 361 and the light rod 362, and the sliding seats 363 are in screw transmission connection with the lead screw 361, and the bottom end of the sliding seat 363 is detachably fixedly connected with the corresponding limiting plate 34.

[0067] A driving source 364 is installed on the connecting plate 33 and in transmission connection with one end of the lead screw 361.

[0068] In the embodiment, a specific structure for adjusting the size of the tapered channel 35 is provided, specifically, the driving source 364 is a driving motor, the driving source 364 drives the lead screw 361 to rotate, the screw transmission between the lead screw 361 and the sliding seat 363, under the limiting action of the light rod 362, the rotating action of the lead screw 361 is converted into the linear motion of the sliding seat 363, because the screw rotation directions of both ends of the lead screw 361 are opposite, so the two sliding seats 363 are synchronously close to or away from each other, and then the sliding seat 363 drives the limiting plate 34 to move synchronously, so that the distance between the two limiting plates 34 can be changed, and the size of the tapered channel 35 can be changed.

[0069] The driving source 364 can realize the reciprocating change of the size of the tapered channel 35 from large to small and then from small to large, compared with the tapered channel 35 which always remains unchanged, the passive process of the lithium battery moving through the tapered channel 35 is changed into the active process of the tapered channel 35 reciprocating from both sides to the middle, so that the contact degree and contact time of the tapered channel 35 and the lithium battery can be reduced, and then the relative friction caused by the lithium battery continuously contacting the tapered channel 35 can be prevented, the abrasion or local deformation of the heat shrinkage film wrapped outside can be prevented, the quality of the final heat shrinkage packaging can be damaged, the position control of the lithium battery and the adverse effect on the heat shrinkage film wrapped outside can be reduced.

[0070] The gas bag layer 4 is fixed on the side close to each other of the two limiting plates 34. The gas bag layer 4 is arranged to flexibly process the side close to each other of the two limiting plates 34, so that the hard contact of the limiting plate 34 and the lithium battery is changed into flexible contact, and the damage of the heat shrinkage film wrapped outside is prevented. Embodiment 2

[0071] The side of the connecting plate 33 facing the heat shrinkage furnace 2 is fixedly provided with a cantilever 5, and the cantilever 5 is installed with a separation mechanism 6, and the separation mechanism 6 is used for separating the conveyed lithium battery. The separation mechanism 6 comprises:

[0072] a cross 61 rotatably mounted at the center of the cantilever 5;

[0073] a through slot 62 formed at the center of the cantilever 5 and the cross 61, and a helical groove 63 formed on the inner side wall of the through slot 62 at the center of the cross 61;

[0074] a plug rod 64 fixedly arranged at one side of one of the sliding seats 363 through a connecting rod, and inserted into the through slot 62 at the other end;

[0075] a protrusion 65 fixedly arranged on the outer ring of the plug rod 64, and capable of being inserted into the helical groove 63.

[0076] a telescopic slot 611 formed on the plug rod 64, and a reset spring 612 arranged in the telescopic slot 611, the protrusion 65 is arranged in a T-shaped structure, and is slidingly connected in the telescopic slot 611;

[0077] the protrusion 65 is arranged in an arc surface 651 at the side close to the connecting rod, and is arranged in a vertical surface 652 at the side away from the connecting rod.

[0078] In the embodiment, the front-to-back spacing of the lithium battery is controlled through the arrangement of the separation mechanism 6. Specifically, when the channel adjusting assembly 36 reciprocates, the two sliding seats 363 move close to each other, one of the sliding seats 363 drives the movement of the connecting rod connected thereto, and the connecting rod drives the movement of the plug rod 64. Since the protrusion 65 arranged on the plug rod 64 is inserted into the helical groove 63 during the movement, the protrusion 65 cooperates with the helical groove 63, so that the cross 61 rotates by ninety degrees. The continuous movement of the protrusion 65 enters the through slot 62 of the cantilever 5, at this time the protrusion 65 is separated from the helical groove 63, so that the cross 61 stops rotating. When the two sliding seats 363 move away from each other, the sliding seat 363 drives the connecting rod and the plug rod 64 to return. At this time, the protrusion 65 on the plug rod 64 passes through the helical groove 63 from the through slot 62. Since the other side of the protrusion 65 is arranged in an arc surface 651, once the protrusion 65 is blocked during the return, the protrusion 65 is passively compressed into the telescopic slot 611 until it is separated from the helical groove 63. The protrusion 65 is extended again under the action of the reset spring 612, and waits for the next action. In this way, the plug rod 64, the protrusion 65 and the helical groove 63 are transmitted when fed, and are not transmitted when returned, so that the cross 61 rotates counterclockwise intermittently;

[0079] Two limiting plates 34 in the above process perform an action of concentrating the lithium battery to the middle part, thereby driving the cross 61 in the separation mechanism 6 to rotate counterclockwise by 90 degrees, and exactly completing the action of pushing out a lithium battery, so as to control the middle position and the front and rear spacing of the lithium battery, and reduce the probability that the front and rear two lithium batteries are too close, the part close to each other is blocked, and after entering the heat shrinkage furnace 2 to collect heat, the heat is not uniform, resulting in poor local shrinkage effect. Example 3

[0080] The heat shrinkage furnace 2 is provided with a sealing curtain 7 at the inlet and outlet, the sealing curtain 7 comprises a rotating shaft 71, a plurality of sleeves 72 are sleeved on the rotating shaft 71, and a sealing strip 73 is integrally arranged at the bottom end of the sleeve 72.

[0081] The bottom end of the sealing strip 73 is embedded with a magnet one 8, and the end of the cross 61 is embedded with a magnet two 9.

[0082] In this embodiment, the sealing curtain 7 is arranged, so that the heat of the heat shrinkage furnace 2 can be locked, and the heat overflow in the heat shrinkage furnace 2 is reduced; meanwhile, the sealing curtain 7 is arranged in a combined structure, so that the sealing strip 73 with a width suitable for the size of the lithium battery entering can be automatically pushed according to the size of the lithium battery entering, and the remaining part remains in a closed state, compared with the integrated sealing curtain 7 which needs to be fully swung open regardless of the size of the lithium battery entering, unnecessary heat loss can be obviously reduced.

[0083] Meanwhile, a group of magnets are arranged at the bottom of the cross 61 and the sealing strip 73; if the magnet one 8 and the magnet two 9 are magnetically attracted to each other, in the process of counterclockwise rotation of the cross 61, the sealing strip 73 in the corresponding area is adsorbed and moves upward, so as to reserve space for the lithium battery entering and prevent the interference of the sealing strip 73 to the lithium battery entering.

[0084] If the magnet one 8 and the magnet two 9 repel each other, the magnetic repulsion force between the two can push the sealing strip 73 in the corresponding area, so as to reserve space for the lithium battery entering and prevent the interference of the sealing strip 73 to the lithium battery entering.

[0085] Working principle of the application:

[0086] When the material arranging mechanism 3 works, the pneumatic telescopic rod 32 on the lower surface of the suspension beam 31 is elongated downward, thereby driving the connecting plate 33 connected to the bottom to move downward, and then the limiting plate 34 below the connecting plate 33 is synchronously moved downward until the bottom surface of the limiting plate 34 is close to the upper surface of the conveying mechanism 1, and a gap of 2-5 cm is left between the bottom surface of the limiting plate 34 and the upper surface of the conveying mechanism 1 to avoid interference of the limiting plate 34 on the conveying process of the conveying mechanism 1; the two limiting plates 34 are distributed in a conical shape, at this time, the conical channel 35 formed will make the lithium battery after the heat-shrinkable film wrapping enter from the large end to the small end, and the center of the conical channel 35 is the same as the center of the conveying mechanism 1, thereby guiding the lithium battery after the heat-shrinkable film wrapping, and passively concentrating the lithium battery in the conveying state to the middle, so as to achieve the purpose of limiting the position of the lithium battery.

[0087] The driving source 364 can also drive the screw rod 361 to rotate, and the screw transmission between the screw rod 361 and the sliding seat 363, under the limiting action of the light rod 362, changes the rotating action of the screw rod 361 into the linear motion of the sliding seat 363, because the screw directions of the two ends of the screw rod 361 are opposite, so the two sliding seats 363 are synchronously close to or away from each other, and then the sliding seat 363 drives the limiting plate 34 to move synchronously, so as to change the distance between the two limiting plates 34, and achieve the purpose of changing the size of the conical channel 35.

[0088] The front and rear distance of the lithium battery is also controlled by the separation mechanism 6; specifically, when the channel adjusting assembly 36 reciprocates, when the two sliding seats 363 move close to each other, one of the sliding seats 363 drives the connected connecting rod to move, and the connecting rod drives the insertion rod 64 to move, because the protrusion 65 on the insertion rod 64 is inserted into the spiral groove 63 during the movement, so the protrusion 65 cooperates with the spiral groove 63, thereby rotating the cross 61 by ninety degrees, and the protrusion 65 continues to move into the through groove 62 of the cantilever 5, at this time, the protrusion 65 is separated from the spiral groove 63, so the cross 61 stops rotating, when the two sliding seats 363 move away from each other, the sliding seat 363 drives the connecting rod and the insertion rod 64 to return, at this time, the protrusion 65 on the insertion rod 64 passes through the spiral groove 63 from the through groove 62, because the other side of the protrusion 65 is provided with an arc surface 651, so once blocked in the return process, the protrusion 65 is passively pressed into the telescopic groove 611, until it is separated from the spiral groove 63, the protrusion 65 is re-extended under the action of the reset spring 612, and waits for the next action.

[0089] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent scope of the present application.

Claims

1. A lithium battery assembly heat shrink film heat shrink packaging apparatus comprising a conveying mechanism (1), characterized in that, The frame of the conveying mechanism (1) is provided with a sealing and cutting mechanism, one side of the conveying mechanism (1) is provided with a heat shrinkage furnace (2), and a material arranging mechanism (3) is arranged between the conveying mechanism (1) and the heat shrinkage furnace (2); the material arranging mechanism (3) is used for controlling the lithium battery to be in a centered position when entering the heat shrinkage furnace; The material arranging mechanism (3) comprises: a suspension beam (31) fixed on the frame of the conveying mechanism (1); a pneumatic telescopic rod (32) fixedly installed at one end on the bottom surface of the suspension beam (31); a connecting plate (33) horizontally fixedly arranged on the bottom end of the pneumatic telescopic rod (32); two limiting plates (34) symmetrically arranged above the conveying mechanism (1) and fixedly arranged on the bottom surface of the connecting plate (33); a tapered channel (35) formed between the two limiting plates (34) and having a smaller end facing the middle position of the heat shrinkage furnace (2); a channel adjusting assembly (36) for adjusting the size of the tapered channel (35); The channel adjusting assembly (36) comprises: a lead screw (361) horizontally placed and rotatably installed on the bottom surface of the connecting plate (33), the screw directions of the two ends of the lead screw (361) being opposite; a light rod (362) parallel to the lead screw (361) and fixedly installed at both ends on the bottom surface of the connecting plate (33); two sliding seats (363) sleeved on the lead screw (361) and the light rod (362) and screw transmission connected between the sliding seat (363) and the lead screw (361), the bottom end of the sliding seat (363) being detachably fixedly connected with the corresponding limiting plate (34); a driving source (364) installed on the connecting plate (33) and transmission connected with one end of the lead screw (361); one side of the connecting plate (33) facing the heat shrinkage furnace (2) is fixedly provided with a cantilever (5), the cantilever (5) is provided with a separating mechanism (6), and the separating mechanism (6) is used for separating the conveyed lithium batteries; The separating mechanism (6) comprises: a cross (61) rotatably installed at the center of the cantilever (5); a through groove (62) penetrating through the cantilever (5) and the center of the cross (61), and a spiral groove (63) being formed in the inner wall of the through groove (62) at the center of the cross (61); a plug rod (64) fixedly arranged at one side of one of the sliding seats (363) through a connecting rod and inserted into the through groove (62). The convex (65) is fixedly arranged on the outer ring of the insertion rod (64), and the convex (65) can be inserted into the spiral groove (63).

2. The lithium battery assembly heat-shrinkable film heat-shrinkage packaging apparatus according to claim 1, wherein, The air bag layer (4) is fixed on one side of the two limiting plates (34) close to each other.

3. The lithium battery assembly heat-shrinkable film heat-shrinkable packaging apparatus according to claim 1, wherein, The insertion rod (64) is provided with an expansion groove (611), the expansion groove (611) is provided with a reset spring (612), the convex (65) is provided in a T-shaped structure, and the convex (65) is slidingly connected in the expansion groove (611). The side of the convex (65) close to the connecting rod is provided in an arc surface (651), and the side of the convex (65) away from the connecting rod is provided in a vertical surface (652).

4. The lithium battery assembly heat-shrinkable film heat-shrinkage packaging apparatus according to claim 1 or 3, characterized in that, The inlet and outlet of the heat shrinkage furnace (2) are provided with sealing curtains (7), the sealing curtain (7) comprises a rotating shaft (71), a plurality of sleeves (72) are sleeved on the rotating shaft (71), a sealing strip (73) is integrally arranged at the bottom end of the sleeve (72), and the sealing strip (73) and the sleeve (72) can freely swing on the rotating shaft (71).

5. The lithium battery assembly heat-shrinkable film heat-shrinkage packaging apparatus according to claim 4, wherein, The bottom end of the sealing strip (73) is embedded with a magnet one (8), the end of the cross (61) is embedded with a magnet two (9), and the magnet one (8) and the magnet two (9) are magnetically attracted.

6. The lithium battery assembly heat-shrinkable film heat-shrinkable packaging apparatus according to claim 4, wherein, The bottom end of the sealing strip (73) is embedded with a magnet one (8), the end of the cross (61) is embedded with a magnet two (9), and the magnet one (8) and the magnet two (9) are magnetically repelled.

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