Secondary packaging equipment for soft package lithium battery

Abstract

The utility model discloses secondary packaging equipment for a soft package lithium battery. The secondary packaging equipment comprises a base and a lifting mechanism, a fixing frame is fixed to the upper side of the rear end of the base and is of an L-shaped structure, a hydraulic cylinder is installed on the bottom side of the horizontal end of the fixing frame, a fixing plate is fixed to the telescopic end of the hydraulic cylinder, and through holes are formed in the four corners of the fixing plate. The lithium battery is firstly positioned by positioning grooves in the front side and the rear side of a limiting rod, the limiting rod is gradually close to a fixing plate along with continuous descending of a hydraulic cylinder, at the moment, a compression spring shrinks until a packaging head on the bottom side of a heating plate is in contact with the lithium battery for packaging, the soft package lithium battery can be positioned and packaged at a time, and the packaging efficiency is greatly improved; due to the fact that at least three limiting rods are arranged, multiple rows of soft package lithium batteries can be positioned, and the stacking phenomenon of the soft package lithium batteries is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery packaging, and in particular relates to a secondary packaging device for soft-pack lithium batteries. Background Art

[0002] During the processing of soft-pack lithium batteries, electrolyte needs to be added and sealed once after the electrolyte is added. In order to improve its stability in use, it needs to be packaged twice.

[0003] After searching, the patent with application number 201920555678.4 discloses a lithium battery secondary packaging device. This patent requires the lithium battery to be positioned first by setting up a telescopic cylinder and a clamp, and then encapsulated by a heating plate and an encapsulation head. The packaging efficiency of this method is low, and because there are two clamps in the front and back, the lithium batteries will be stacked, and the positioning effect is poor, which is not suitable for the packaging of multiple rows of lithium batteries. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a secondary packaging equipment for soft-pack lithium batteries. By setting a lifting limit rod, as the hydraulic cylinder drives the fixed plate to move downward, the positioning grooves on the front and rear sides of the limit rod first position the lithium battery. As the hydraulic cylinder continues to descend, the limit rod and the fixed plate gradually approach each other. At this time, the compression spring contracts until the packaging head on the bottom side of the heating plate contacts the lithium battery and packages it. The soft-pack lithium battery can be positioned and packaged at one time, which greatly improves the packaging efficiency. Since at least three limit rods are provided, multiple rows of soft-pack lithium batteries can be positioned, avoiding the stacking of soft-pack lithium batteries.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The lifting mechanism is a kind of in-law of claim 1, wherein the lifting mechanism comprises a lifting column, a fixing plate, a connecting rod and a compression spring, and the lifting mechanism comprises a lifting column, a fixing plate, a connecting rod and a compression spring. The top of the lifting column is fixed with the fixing plate that contacts with the surface of the fixing plate, and the bottom of the front and rear lifting columns are connected by connecting rods. The side surfaces of the lifting column are sleeved with compression springs, and the two ends of the compression spring are respectively fixed to the bottom side of the fixing plate and the upper side of the connecting rod. At least three first moving blocks are slidably connected to the connecting rod, and the left and right corresponding first moving blocks are connected by a limit rod. A plurality of positioning slots are equidistantly provided on the front and rear sides of the limit rod. The bottom side of the device is provided with two left and right symmetrical slide rails, and the slide rails are slidably connected to at least two second moving blocks, and the bottom sides of the left and right corresponding second moving blocks are connected through a heating plate, and a plurality of packaging heads are equidistantly provided on the bottom side of the heating plate, and the bottom sides of the packaging heads are provided with packaging grooves. By setting a lifting limit rod, as the hydraulic cylinder drives the fixed plate to move downward, the positioning grooves on the front and rear sides of the limit rod first position the lithium battery. As the hydraulic cylinder continues to descend, the limit rod and the fixed plate gradually approach each other. At this time, the compression spring contracts until the packaging head on the bottom side of the heating plate contacts the lithium battery and performs packaging. The soft-pack lithium battery can be positioned and packaged at one time, which greatly improves the packaging efficiency. Since at least three limit rods are provided, multiple rows of soft-pack lithium batteries can be positioned, avoiding the stacking of soft-pack lithium batteries. Since the first moving block is adjustable, it is convenient to adjust the spacing between adjacent limit rods to adapt to the positioning of soft-pack lithium batteries with different diameters.

[0007] Furthermore, the first movable block is detachably mounted on the connecting rod by fastening bolts, and the second movable block is detachably mounted on the slide rail by fastening bolts, which prevents displacement of the lithium battery when positioning the battery, thereby ensuring stability in use.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a lifting limit rod, as the hydraulic cylinder drives the fixed plate to move downward, the positioning grooves on the front and rear sides of the limit rod first position the lithium battery, and as the hydraulic cylinder continues to descend, the limit rod and the fixed plate gradually approach each other. At this time, the compression spring contracts until the packaging head on the bottom side of the heating plate contacts and packages the lithium battery, and the soft-pack lithium battery can be positioned and packaged at one time, which greatly improves the packaging efficiency. Since at least three limit rods are provided, multiple rows of soft-pack lithium batteries can be positioned, and the stacking of soft-pack lithium batteries is avoided. Since the first moving block is adjustable, the spacing between adjacent limit rods can be conveniently adjusted to adapt to the positioning of soft-pack lithium batteries of different diameters. The first moving block can be detachably mounted on the connecting rod by a fastening bolt, and the second moving block can be detachably mounted on the slide rail by a fastening bolt. When the lithium battery is positioned, its displacement is avoided, and stability in use is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of the utility model.

[0010] Figure 2 It is a schematic diagram of the right side structure of the present utility model.

[0011] Figure 3 This is a schematic diagram of the bottom structure of the utility model.

[0012] In the figure: 1 base, 2 fixed frame, 3 hydraulic cylinder, 4 lifting mechanism, 41 lifting column, 42 fixed plate, 43 connecting rod, 44 compression spring, 5 first moving block, 6 limit rod, 7 positioning groove, 8 fixed plate, 9 slide rail, 10 second moving block, 11 heating plate, 12 packaging head. DETAILED DESCRIPTION

[0013] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example

[0015] See attached Figure 1-3 As shown, a soft-pack lithium battery secondary packaging device includes a base 1 and a lifting mechanism 4; a fixing frame 2 is fixed on the upper side of the rear end of the base 1, and the fixing frame 2 is an "L"-shaped structure. A hydraulic cylinder 3 is installed on the bottom side of the horizontal end of the fixing frame 2, and a fixing plate 8 is fixed to the telescopic end of the hydraulic cylinder 3. The four corners of the fixing plate 8 are provided with through holes. The lifting mechanism 4 includes a lifting column 41, a fixing plate 42, a connecting rod 43 and a compression spring 44. The through holes at the four corners of the fixing plate 8 are slidably connected to the lifting columns 41. The top is fixed with a fixed plate 42 that contacts the surface of the fixed plate 8. The bottoms of the front and rear end lifting columns 41 are connected by connecting rods 43. The sides of the lifting columns 41 are sleeved with compression springs 44. The two ends of the compression springs 44 are respectively fixed to the bottom side of the fixed plate 8 and the upper side of the connecting rod 43. At least three first moving blocks 5 are slidably connected to the connecting rod 43. The left and right corresponding first moving blocks 5 are connected by a limit rod 6. The front and rear sides of the limit rod 6 are equidistantly provided with a number of positioning grooves 7. The fixed plate 8 The bottom side of the device is provided with two left and right symmetrical slide rails 9, and at least two second moving blocks 10 are slidably connected to the slide rails 9. The bottom sides of the left and right corresponding second moving blocks 10 are connected through a heating plate 11. A number of packaging heads 12 are equidistantly provided on the bottom side of the heating plate 11, and packaging grooves are provided on the bottom sides of the packaging heads 12. By setting a lifting limit rod 6, as the hydraulic cylinder 3 drives the fixed plate 8 to move downward, the positioning grooves 7 on the front and rear sides of the limit rod 6 first position the lithium battery. As the hydraulic cylinder 3 continues to descend, the limit rod 6 and the fixed plate 8 gradually approach each other. At this time, the compression spring 44 contracts until the packaging head 12 on the bottom side of the heating plate 11 contacts the lithium battery and performs packaging. The soft-pack lithium battery can be positioned and packaged at one time, which greatly improves the packaging efficiency. Since at least three limit rods 6 are provided, multiple rows of soft-pack lithium batteries can be positioned to avoid stacking of soft-pack lithium batteries. Since the first moving block 5 is adjustable, it is convenient to adjust the spacing between adjacent limit rods 6 to adapt to the positioning of soft-pack lithium batteries with different diameters.

[0016] The first moving block 5 is detachably mounted on the connecting rod 43 by fastening bolts, and the second moving block 10 is detachably mounted on the slide rail 9 by fastening bolts, which prevents the lithium battery from being displaced when being positioned, thereby ensuring stability in use.

[0017] Working principle: Place the soft-pack lithium battery to be packaged on the base 1, and the hydraulic cylinder 3 drives the fixed plate 8 to move downward. The positioning grooves 7 on the front and rear sides of the limit rod 6 first position the lithium battery. As the hydraulic cylinder 3 continues to descend, the limit rod 6 and the fixed plate 8 gradually approach each other. At this time, the compression spring 44 contracts until the packaging head 12 on the bottom side of the heating plate 11 contacts the lithium battery and packages it. The soft-pack lithium battery can be positioned and packaged at one time. When the soft-pack lithium battery is packaged, the hydraulic cylinder 3 drives the fixed plate 8 to move upward. As the fixed plate 8 moves upward, the limit rod 6 gradually returns to its original position under the action of the compression spring 44. It is convenient for next use and greatly improves the packaging efficiency. Since at least three limit rods 6 are provided, multiple rows of soft-pack lithium batteries can be positioned to avoid stacking of soft-pack lithium batteries. Since the first movable block 5 is adjustable, it is convenient to adjust the spacing between adjacent limit rods 6 to adapt to the positioning of soft-pack lithium batteries of different diameters. Since the second movable block 10 is adjustable, it is convenient to adjust the packaging position of the soft-pack lithium battery. The first movable block 5 is detachably mounted on the connecting rod 43 by fastening bolts, and the second movable block 10 is detachably mounted on the slide rail 9 by fastening bolts. When the lithium battery is positioned, its displacement is avoided, thereby ensuring stability in use.

[0018] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A soft-pack lithium battery secondary packaging device, comprising a base and a lifting mechanism, characterized in that: A fixing frame is fixed to the upper rear end of the base, and the fixing frame is in an "L"-shaped structure. A hydraulic cylinder is installed on the bottom side of the horizontal end of the fixing frame, and a fixing plate is fixed to the telescopic end of the hydraulic cylinder. Through holes are provided at the four corners of the fixing plate. The lifting mechanism includes a lifting column, a fixing plate, a connecting rod and a compression spring. The through holes at the four corners of the fixing plate are slidably connected to the lifting columns, and the tops of the lifting columns are fixed with fixing plates that are in contact with the surface of the fixing plate. The bottoms of the front and rear lifting columns are connected by connecting rods, and the sides of the lifting columns are sleeved with compression springs. The two ends of the compression spring are respectively fixed to the bottom side of the fixed plate and the upper side of the connecting rod, and at least three first moving blocks are slidably connected to the connecting rod, and the corresponding first moving blocks on the left and right are connected by a limit rod, and a number of positioning grooves are equidistantly provided on the front and rear sides of the limit rod, and two left-right symmetrical slide rails are provided on the bottom side of the fixed plate, and at least two second moving blocks are slidably connected to the slide rails, and the bottom sides of the corresponding second moving blocks on the left and right are connected through a heating plate, and a number of packaging heads are equidistantly provided on the bottom side of the heating plate, and the bottom sides of the packaging heads are provided with packaging grooves.

2. The soft-pack lithium battery secondary packaging device according to claim 1, characterized in that: The first moving block is detachably mounted on the connecting rod via fastening bolts, and the second moving block is detachably mounted on the slide rail via fastening bolts.

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