Battery pack strapping machine

Abstract

The invention relates to a battery pack strapping machine, and relates to the technical field of strapping machines, the battery pack strapping machine comprises a rack, a machine head and a track, and further comprises a mounting plate, the mounting plate is transversely connected to the rack in a sliding mode; the track comprises a first track frame and a second track frame; the first track frame and the second track frame can slide relatively and transversely, form an avoiding space for a battery pack to pass through during separation, and form a closed track during combination; the first track frame and the second track frame each comprise a transversely-arranged main beam, an auxiliary beam perpendicularly and fixedly connected to the main beam and a sliding rail parallel to the auxiliary beam, and the sliding rail is slidably connected to the end, away from the auxiliary beam, of the main beam. When the first track frame and the second track frame are combined, the sliding rail of the first track frame is in butt joint with the auxiliary beam of the second track frame, the sliding rail of the second track frame is in butt joint with the auxiliary beam of the first track frame, and sliding of the sliding rails is used for changing the size of the track. The device has the effect that the track size is inconvenient to switch.

Description

Technical Field

[0001] This application relates to packaging machines, and more particularly to a battery pack strapping machine. Background Art

[0002] With the rapid development of new energy vehicles, the demand for battery packs is increasing daily. To improve production efficiency and consistency, automated production lines are commonly used for battery pack production. The bundling process is one part of this production line.

[0003] Currently, the strapping tracks of automatic strapping machines on production lines need to cross conveyor belts. To ensure that battery packs can be smoothly transported from the conveyor belt to the strapping station, the strapping machine's track needs to have a clearance function. Existing technologies mainly adopt two methods: one is that the entire track moves up and down as a whole, lowering to the working position during strapping and rising to the clearance height when the battery pack passes through; the other is that the track is designed with an openable and closable structure, closing to form a ring track around the battery pack during strapping and opening to allow the battery pack to pass through.

[0004] To ensure bundling quality, the distance between the bundling track and the battery pack must be strictly controlled. If the track size is too large, it will cause undue swaying or twisting of the bundling tape during tightening, resulting in substandard bundling quality. However, with the increasing market demand for product diversification, a single production line often needs to accommodate multiple battery packs of different specifications.

[0005] Currently, the traditional solution for producing battery packs of different specifications is to stop production and replace the entire strapping equipment, or replace the entire track assembly of the strapping machine. Both of these methods suffer from long replacement times and inconvenience, thus affecting production efficiency. Summary of the Invention

[0006] The purpose of this application is to provide a battery pack bundling machine.

[0007] The battery pack strapping machine provided in this application adopts the following technical solution: it includes a frame, a machine head and a track; it also includes a mounting plate, which is laterally slidably connected to the frame.

[0008] The track includes a first track frame and a second track frame, the first track frame being fixedly connected to the mounting plate, and the second track frame being laterally slidably connected to the frame;

[0009] The first track frame and the second track frame can slide laterally relative to each other, forming a clearance space for the battery pack to pass through when separated, and forming a closed track when joined.

[0010] The frame is provided with a first drive structure for driving the mounting plate to move, and a second drive structure for driving the second track frame to move.

[0011] Both the first and second track frames include a transversely arranged main beam, a secondary beam vertically fixed to the main beam, and a sliding rail parallel to the secondary beam. The sliding rail is slidably connected to the end of the main beam away from the secondary beam. When the first and second track frames are combined, the sliding rail of the first track frame is connected to the secondary beam of the second track frame, and the sliding rail of the second track frame is connected to the secondary beam of the first track frame. The sliding of the sliding rail is used to change the size of the track.

[0012] By adopting the above technical solution, the sliding rail and the main beam slide together, thereby adjusting the size of the rail to precisely adapt to the bundling operations of battery packs of various specifications. When different battery pack specifications are produced on the same line, rapid switching is possible, significantly improving the flexibility of the production line and equipment utilization.

[0013] Optionally, the sliding rail is slidably connected to the end of the main beam away from the secondary beam and located on one side of the cable tie conveying direction.

[0014] Optionally, an arc-shaped plate is fixedly connected to one side of the main beam, and baffles are fixedly connected to the top and bottom of one end of the main beam. The baffles are flush with the top and bottom sides of the sliding rail, and one end of the arc-shaped plate is attached to the track surface of the sliding rail.

[0015] By adopting the above technical solution, a continuous, smooth, and closed strapping conveyor channel is formed through the precise cooperation of the arc plate, baffle and sliding rail surface.

[0016] Optionally, the sliding rail has multiple adjustment holes on the side opposite to the track surface, and the main beam is threaded with adjustment bolts, which pass through the adjustment holes and are fixedly connected to the main beam.

[0017] By adopting the above technical solution, adjusting the fit between the bolts and different adjustment holes, the extension length of the sliding rail is fixed, thereby determining the final working dimensions of the rail. This method is convenient to operate, provides secure positioning, and ensures the stability of the rail when bundling battery packs of different specifications.

[0018] Optionally, the sliding rail and the sub-beam are provided with mutually cooperating positioning structures at their opposite ends.

[0019] By adopting the above technical solution, when the first and second tracks are laterally aligned, this positioning structure ensures precise alignment between the ends of the sliding rail and the sub-beam. This effectively avoids steps or gaps caused by misalignment between the two tracks, ensuring a smooth transition of the binding straps at the track joint.

[0020] Optionally, the positioning structure includes a tapered protrusion disposed on the sub-beam and a funnel-shaped groove disposed on the sliding rail that is adapted to the tapered protrusion.

[0021] By adopting the above technical solution, the combination of the conical protrusion and the funnel-shaped groove forms a self-guided precision positioning structure. Even if there is a slight centering error during the track closing process, the conical surface can automatically guide the protrusion to slide into the bottom of the groove to achieve the final precise positioning.

[0022] Optionally, limit plates are installed on both the upper and lower sides of the first track frame and the second track frame; the limit plate has an L-shaped cross-section and includes a transverse portion that fits against the track surface and a vertical portion that is perpendicular to the track surface; a limit bolt is threaded onto the track, and the limit bolt passes through the transverse portion of the limit plate; a spring is sleeved on the limit bolt, and the spring provides a preload force to keep the transverse portion of the limit plate in contact with the track frame surface.

[0023] By adopting the above technical solution, the preload provided by the spring ensures that the limiting plate always fits the track frame, while also being easily pushed away by the cable ties, thus achieving dynamic elastic coverage of the track groove.

[0024] Optionally, the upper and lower surfaces of the sliding rail are provided with multiple mounting grooves, which are distributed along the length of the sliding rail and extend through the outer side of the sliding rail; a nut is hinged in the mounting groove, and the limiting bolt is threadedly connected to the nut, and the limiting bolt is horizontal or vertical as the nut rotates.

[0025] By adopting the above technical solution, when the sliding rail retracts, the excess limiting plate rotates to avoid interference with the baffle. The vertical bolts are loosened, and then, as the nut rotates, the bolts become horizontal, causing the limiting plate to flip outwards synchronously, thus allowing the baffle to be moved aside.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By using the telescopic sliding of the sliding rail and fixing it with adjusting holes and bolts, a single machine can cover the bundling operations of various battery pack specifications. This allows a production line to quickly respond to changes in production plans, easily switch between producing different models of products, and significantly enhance the flexibility of the production line and the utilization rate of the equipment.

[0028] 2. The combination of the conical protrusion and the funnel-shaped groove forms a self-guided precision positioning structure. Even if there is a slight centering error during the track closing process, the conical surface can automatically guide the protrusion to slide into the bottom of the groove to achieve the final precise positioning.

[0029] 3. The bolts move horizontally or vertically as the nut rotates. When the sliding rail retracts, the excess limiting plate rotates to avoid interference with the baffle. Loosen the vertical bolts, and then the bolts move horizontally as the nut rotates. The limiting plate flips outwards synchronously, allowing the baffle to be moved aside. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is a schematic diagram illustrating the positioning structure in an embodiment of this application;

[0032] Figure 3 This is a top view of the limiting plate used in an embodiment of this application;

[0033] Figure 4 This is a cross-sectional view of the limiting plate used in an embodiment of this application;

[0034] Figure 5 This is a cross-sectional view used in this application embodiment to show the limit plate after it has been moved.

[0035] In the diagram, 100 is the frame; 200 is the mounting plate; 300 is the track; 301 is the main beam; 302 is the secondary beam; 303 is the sliding rail; 304 is the clearance groove; 305 is the bracket; 306 is the sliding guide block; 307 is the guide rail; 308 is the adjusting hole; 309 is the adjusting bolt; 310 is the first track frame; 320 is the first track frame; 330 is the positioning structure; 331 is the conical protrusion; 332 is the funnel-shaped groove; 340 is the limiting plate; 341 is the limiting bolt; 342 is the spring; 343 is the mounting groove; 344 is the nut; 350 is the arc plate; 351 is the baffle; and 400 is the machine head. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0037] Example: Refer to Figure 1 This embodiment provides a battery pack strapping machine, which mainly includes a frame 100, a mounting plate 200, a track 300, a machine head 400, a first drive structure, a second drive structure, and a third drive structure.

[0038] The frame 100 serves as the basic support structure for the entire equipment and is fixedly installed on both sides of the production line conveyor. The mounting plate 200 is slidably connected to the frame 100 via a slider and guide rail 307. A first drive structure is used to drive the mounting plate 200 to slide laterally. The first drive structure can be a lead screw driven by a servo motor or a hydraulic cylinder driven by a hydraulic system.

[0039] Track 300 includes a first track frame 310 and a second track frame 320.

[0040] The first track frame 310 is fixedly connected to the mounting plate 200, and therefore can move with the mounting plate 200. The second track frame 320 is slidably connected to the frame 100, and the first track frame 310 and the second track frame 320 are located on opposite sides of the conveyor belt. A second drive structure is used to drive the lateral sliding of the second track frame 320. The second drive structure can be a lead screw pair driven by a servo motor, or a hydraulic cylinder driven by a hydraulic system. When the first track frame 310 and the second track frame 320 slide away from each other to separate, a clearance space is formed for the battery pack to pass through; when they slide towards each other to merge, a closed track 300 is formed.

[0041] The machine head 400 is slidably connected to the mounting plate 200 and is driven by a third drive structure. The first drive structure can be a lead screw driven by a servo motor or a hydraulic cylinder driven by a hydraulic system.

[0042] Reference Figure 1 and Figure 2 Both the first track frame 310 and the second track frame 320 include a main beam 301 arranged horizontally, a secondary beam 302 vertically fixedly connected to the main beam 301, and a sliding rail 303 parallel to the secondary beam 302.

[0043] The sliding rail 303 is slidably connected to the end of the main beam 301 away from the secondary beam 302 and is located on the side of the cable tie conveying direction. If the cable tie is conveyed clockwise, the sliding rail 303 is located on the clockwise side of the main beam 301; otherwise, it is on the counterclockwise side. When the first track frame 310 and the second track frame 320 are combined, the sliding rail 303 of the first track frame 310 is connected to the secondary beam 302 of the second track frame 320, and the sliding rail 303 of the second track frame 320 is connected to the secondary beam 302 of the first track frame 310. The sliding of the sliding rail 303 can adjust the overall size of the track 300.

[0044] Reference Figure 2 The sliding rail 303 and the sub-beam 302 are provided with mutually cooperating positioning structures 330 at their opposite ends. The positioning structure 330 includes a conical protrusion 331 provided on the sub-beam 302 and a funnel-shaped groove 332 provided on the sliding rail 303 that is adapted to the conical protrusion 331.

[0045] Reference Figure 2 The combination of the conical protrusion 331 and the funnel-shaped groove 332 forms a self-guiding structure. Even if there is a slight centering error during the closing process of the track 300, the conical surface can automatically guide the protrusion to slide into the bottom of the groove to achieve the final precise positioning.

[0046] Reference Figure 3Both sides of the main beam 301 are fixedly connected with arc-shaped plates 350, and one end of the main beam 301 is fixedly connected with baffles 351 at the top and bottom. The baffles 351 and the arc-shaped plates 350 together form a channel for conveying the cable ties. The baffles 351 are flush with the top and bottom ends of the sliding rail 303, and one end of the arc-shaped plates 350 is attached to the track surface of the sliding rail 303.

[0047] Reference Figure 4 The sliding rail 303 has a clearance groove 304 on the side facing the main beam 301 (i.e., the side of its track 300 surface). A bracket 305 is fixedly connected to the main beam 301, extending through the clearance groove 304 into the interior of the sliding rail 303. A sliding guide block 306 is fixedly connected to the bracket 305. A guide rail 307, slidably connected to the guide block 306, is fixedly connected inside the sliding rail 303. Multiple adjustment holes 308 are provided on the side of the sliding rail 303 facing away from the track 300 surface. An adjusting bolt 309 is threadedly connected to the main beam 301, passing through the adjustment holes 308 and fixedly connected to the bracket 305 of the main beam 301. The cooperation of the adjusting bolt 309 with the different adjustment holes 308 fixes the extension length of the sliding rail 303, thereby determining the final working dimension of the track 300. This method is convenient to operate, provides secure positioning, and ensures the stability of the track 300 when bundling battery packs of different specifications.

[0048] Reference Figure 3 and Figure 4 To ensure the cable ties run smoothly and do not come loose, limit plates 340 are installed on both the upper and lower sides of the first track frame 310 and the second track frame 320. The limit plate 340 has an L-shaped cross-section, including a horizontal portion that fits against the surface of the track frame and a vertical portion perpendicular to the surface of the track frame. A limit bolt 341 is provided on the track frame, passing through a circular hole in the horizontal portion of the limit plate 340. A spring 342 is fitted onto the limit bolt 341, positioned between the limit plate 340 and the bolt head, providing a continuous preload force. This force presses the horizontal portion of the limit plate 340 against the surface of the track frame. When the two track frames are joined, the vertical portions of the limit plates 340 on both sides form a continuous, elastically pressurized guide channel at the opening of the track 300 groove, effectively preventing the cable ties from jumping out.

[0049] When the cable tie is tightened under the action of the machine head 400, the cable tie retracts and moves closer to the object to be bundled under the action of tension, thereby pushing open the limit plate 340 and holding the object to be bundled tightly.

[0050] Reference Figure 4 and Figure 5The sliding rail 303 has multiple mounting grooves 343 on its upper and lower surfaces, distributed along the length of the sliding rail 303 and extending through its outer side. Nuts 344 are hinged within the mounting grooves 343, and limiting bolts 341 are threadedly connected to the nuts 344. The bolts rotate horizontally or vertically as the nuts 344 rotate. When the sliding rail 303 retracts, the excess limiting plate 340 rotates to avoid interference with the baffle. The vertical bolts are loosened, and then, as the nuts 344 rotate, the bolts become horizontal, causing the limiting plate 340 to flip outwards simultaneously, thus allowing the baffle to be moved.

[0051] The working principle of this embodiment is as follows: when the production line needs to switch to bundling battery packs of different specifications, only size adjustments are required:

[0052] Loosen the vertical limiting bolt 341 used to fix the sliding rail 303, turn it to a horizontal state by hinged nut 344, and install the limiting plate 340 with spring 342 to adapt to the new rail 300 profile.

[0053] The operator loosens the adjusting bolts 309 on the first track frame 310 and the second track frame 320 to release the lock on the sliding rail 303. According to the specifications of the new product, the sliding rail 303 is manually slid to the required extension length so that the overall dimensions of the track 300 match the new battery pack. The adjusting bolts 309 are aligned with the corresponding adjusting holes 308 on the sliding rail 303 and tightened to re-secure the sliding rail 303. This changeover process requires no replacement of any large components, is simple and quick to operate, and greatly improves the flexibility of the production line and the utilization rate of equipment.

[0054] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A battery pack strapping machine, comprising a frame (100), a machine head (400), and a track (300), characterized in that: It also includes a mounting plate (200) which is laterally slidably connected to the frame (100); The track (300) includes a first track frame (310) and a second track frame (320). The first track frame (310) is fixedly connected to the mounting plate (200), and the second track frame (320) is laterally slidably connected to the frame (100). The first track frame (310) and the second track frame (320) can slide laterally relative to each other, forming a clearance space for the battery pack to pass through when separated, and forming a closed track (300) when joined. The frame (100) is provided with a first drive structure for driving the mounting plate (200) to move, and a second drive structure for driving the second track frame (320) to move; The first track frame (310) and the second track frame (320) both include a main beam (301) arranged laterally, a secondary beam (302) vertically fixedly connected to the main beam (301), and a sliding rail (303) parallel to the secondary beam (302). The sliding rail (303) is slidably connected to the end of the main beam (301) away from the secondary beam (302). When the first track frame (310) and the second track frame (320) are combined, the sliding rail (303) of the first track frame (310) is connected to the secondary beam (302) of the second track frame (320), and the sliding rail (303) of the second track frame (320) is connected to the secondary beam (302) of the first track frame (310). The sliding of the sliding rail (303) is used to change the size of the track (300).

2. The battery pack bundling machine according to claim 1, characterized in that, The sliding rail (303) is slidably connected to one end of the main beam (301) away from the secondary beam (302) and located on one side of the cable tie conveying direction.

3. A battery pack bundling machine according to claim 2, characterized in that, An arc-shaped plate (350) is fixedly connected to one side of the main beam (301), and baffles (351) are fixedly connected to the upper and lower ends of one end of the main beam (301). The baffles (351) are flush with the upper and lower sides of the sliding rail (303), and one end of the arc-shaped plate (350) is attached to the track surface of the sliding rail (303).

4. A battery pack bundling machine according to claim 1, characterized in that, The sliding rail (303) has multiple adjustment holes (308) on the side opposite to the rail (300) surface. The main beam (301) is threaded with adjustment bolts (309). The adjustment bolts (309) pass through the adjustment holes (308) and are fixedly connected to the main beam (301).

5. A battery pack bundling machine according to claim 1, characterized in that, The sliding rail (303) and the sub-beam (302) are provided with mutually cooperating positioning structures (330) at their opposite ends.

6. A battery pack bundling machine according to claim 5, characterized in that, The positioning structure (330) includes a tapered protrusion (331) disposed on the sub-beam (302) and a funnel-shaped groove (332) disposed on the sliding rail (303) and adapted to the tapered protrusion (331).

7. A battery pack bundling machine according to claim 1, characterized in that, Limiting plates (340) are installed on the upper and lower sides of the first track frame (310) and the second track frame (320); the limiting plate (340) has an L-shaped cross section and includes a transverse portion that fits against the surface of the track (300) and a vertical portion that is perpendicular to the surface of the track (300); a limiting bolt (341) is threaded onto the track (300), and the limiting bolt (341) passes through the transverse portion of the limiting plate (340); a spring (342) is sleeved on the limiting bolt (341), and the spring (342) provides a preload force to keep the transverse portion of the limiting plate (340) in contact with the surface of the track frame.

8. A battery pack bundling machine according to claim 7, characterized in that, The sliding rail (303) has multiple mounting grooves (343) on its upper and lower surfaces. The mounting grooves (343) are distributed along the length of the sliding rail (303) and penetrate the outer side of the sliding rail (303). A nut (344) is hinged in the mounting groove (343). The limiting bolt (341) is threadedly connected to the nut (344). The limiting bolt (341) is horizontal or vertical as the nut (344) rotates.

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