A wire sealing bow rod and shell bottom winding assembly

Abstract

The utility model discloses a wire sealing bow rod and a shell bottom rolling assembly, comprising a relatively movable sealing bow rod and a wire sealing bow rod, the wire sealing bow rod comprising a first rod body, a mounting hole is provided at the bottom of the first rod body, a positioning rod is elastically installed in the mounting hole, the wire sealing bow rod comprises a second rod body, a sealing mold is installed at the front end of the second rod body, a bottom rolling hole is provided on the front end surface of the sealing mold, the entrance of the bottom rolling hole is an arc-shaped guide hole folded outward, a circular arc-shaped guide groove is provided at the bottom of the bottom rolling hole, and the side wall of the arc-shaped guide groove coincides with the side wall of the arc-shaped guide hole. A positioning rod is elastically installed on the wire sealing bow rod, so that the positioning rod and the battery shell are in soft contact, so that the position of the battery shell can be adjusted easily, so that the positioning rod can be smoothly inserted into the battery shell, and the wire sealing bow rod applies a thrust to the battery shell, so that the bottom of the battery shell enters the sealing mold, and the shell bottom is rolled under the action of the sealing mold.

Description

Technical Field

[0001] The utility model relates to the production of a battery shell, in particular to a wire sealing bow rod and a shell bottom rolling component. Background Art

[0002] During the production process of batteries, it is necessary to make a battery shell. The battery shell is formed into a cylindrical body for filling powder through a rolling shell portion. Since the battery also needs to be equipped with a bottom shell and a rubber plug, the bottom of the battery shell needs to be rolled up. After a long period of research, the inventor has developed a battery shell rolling equipment. After the shell is rolled up by the rolling shell portion, it is input into the battery shell rolling portion through a battery conveying device, and then the bottom of the battery shell is rolled up. When rolling the shell, the inventor proposed a shell bottom rolling assembly. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a wire sealing bow rod and a shell body winding bottom assembly.

[0004] The purpose of the utility model is achieved through the following technical solutions: a wire sealing bow rod, including a first rod body, a mounting hole is opened at the bottom of the first rod body, a positioning rod is elastically installed in the mounting hole, and a bottom coiling accommodating hole is opened at the bottom of the positioning rod.

[0005] Optionally, the positioning rod has an insertion portion and a positioning portion, the insertion portion is cooperatively installed in the mounting hole, a limiting step is formed between the insertion portion and the positioning portion, a limiting mold is mounted on the positioning portion, and the limiting mold is installed at the bottom of the first rod body through a countersunk screw, and a spring mounting hole is axially opened on the insertion portion, a compression spring is installed in the spring mounting hole, and one end of the compression spring is abutted against the bottom of the mounting hole.

[0006] Optionally, a gasket is also installed at the bottom of the mounting hole, and one end of the compression spring abuts against the gasket.

[0007] A shell bottom rolling assembly comprises a sealing bow rod and the above-mentioned wire sealing bow rod that move relatively, the sealing bow rod and the wire sealing bow rod are coaxially arranged, the front end of the wire sealing bow rod is connected to a thrust device that moves the wire sealing bow rod toward the sealing bow rod, the sealing bow rod comprises a second rod body, a sealing mold is installed at the front end of the second rod body, a bottom rolling hole is provided on the front end surface of the sealing mold, the bottom rolling hole and the bottom rolling accommodating hole of the wire sealing bow rod are coaxially arranged, the entrance of the bottom rolling hole is an arc-shaped guide hole folded outward, and a circular arc-shaped guide groove is provided at the bottom of the bottom rolling hole, and the side wall of the arc-shaped guide groove coincides with the side wall of the arc-shaped guide hole.

[0008] Optionally, the front end of the second rod body has a threaded joint, and the sealing mold is threadedly mounted on the threaded joint.

[0009] Optionally, a stopper is provided on the rear side of the sealing die, and a step matching the stopper is provided on the threaded joint.

[0010] The utility model has the following advantages: the shell bottom rolling component of the utility model has a positioning rod elastically installed on the sealing bow rod, so that the positioning rod and the battery shell are in soft contact, which facilitates the adjustment of the position of the battery shell, so that the positioning rod can be smoothly inserted into the battery shell, and the sealing bow rod applies a thrust to the battery shell, so that the bottom of the battery shell enters the sealing mold, and the shell bottom is rolled up under the action of the sealing mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the shell roll bottom assembly;

[0012] Figure 2 is a schematic cross-sectional view of a shell roll bottom assembly;

[0013] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0014] Figure 4 The figure is a schematic diagram of the installation of the wire sealing bow rod and the sealing bow rod;

[0015] Figure 5 for Figure 4 Schematic diagram of the structure without the sealing bow rod and the sealing bow rod;

[0016] In the figure, 10-seal wire bow rod, 11-first rod body, 12-positioning rod, 13-limiting mold, 14-countsunk screw, 15-compression spring, 16-gasket, 17-spring mounting hole, 18-bottom-rolling accommodating hole, 20-sealing mold bow rod, 21-second rod body, 22-sealing mold, 23-threaded joint, 24-bottom-rolling hole, 25-arc guide hole, 26-arc guide groove; 31-rotating shaft, 32-first cam seat, 33-first cam track, 34-seal wire bow rod mounting seat, 35-seal wire bow rod guide hole, 36-battery rotating disk, 37-seal bow rod mounting seat, 38-seal bow rod guide hole, 39-second cam seat, 40-second cam track, 41-gear, 42-first bearing, 43-second bearing, 44-first guide groove, 45-second guide groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 and Figure 2 As shown, a shell bottom rolling assembly includes a sealing bow rod 20 and a sealing wire bow rod 10 that move relatively. The sealing bow rod 20 and the sealing wire bow rod 10 are coaxially arranged. The front end of the sealing wire bow rod 10 is connected to a thrust device that moves the sealing wire bow rod 10 toward the sealing bow rod 20. In this embodiment, the sealing wire bow rod 10 includes a first rod body 11, and a mounting hole is opened at the bottom of the first rod body 11. A positioning rod 12 is elastically installed in the mounting hole, and a bottom rolling accommodating hole 18 is opened at the bottom of the positioning rod 12. Further, as shown in FIG. Figure 3As shown, the bottom edge of the positioning rod 12 is provided with an arc-shaped chamfer. Therefore, during the process of inserting the positioning rod 12 into the battery, when the arc-shaped chamfer contacts the battery shell, since the positioning rod 12 is elastically installed in the mounting hole, the positioning rod 12 will shrink, and the position of the battery shell will also be fine-tuned, so that the positioning rod 12 is aligned with the battery shell, and then the positioning rod 12 can be inserted into the battery shell. Further, the positioning rod 12 has an insertion portion and a positioning portion, the insertion portion is cooperatively installed in the mounting hole, and a limiting step is formed between the insertion portion and the positioning portion. A limiting mold 13 is mounted on the positioning portion, and the limiting mold 13 is installed on the first rod by a countersunk screw 14. At the bottom of the body 11, a spring mounting hole 17 is axially opened on the insertion part, and a compression spring 15 is installed in the spring mounting hole 17, and one end of the compression spring 15 abuts against the bottom of the mounting hole. The compression spring 15 applies an elastic restoring force to the positioning rod 12, so that the limiting step of the positioning rod 12 abuts against the limiting mold 13. Therefore, by adjusting the distance between the limiting mold 13 and the first rod body 11, the axial position of the positioning rod 12 can be adjusted. Therefore, when in use, the position of the positioning rod 12 can be adjusted according to the approximate position of the battery shell, so as to facilitate the positioning rod 12 to be inserted into the battery shell, and facilitate the limiting mold 13 to push the battery shell toward the sealing bow rod 20.

[0024] In this embodiment, a gasket 16 is also installed at the bottom of the mounting hole, and one end of the compression spring 15 abuts against the gasket 16. The gasket 16 can be used to modulate the compression amount of the compression spring 15, and then the elastic restoring force of the compression spring 15 can be adjusted.

[0025] In this embodiment, if Figure 1 and Figure 2 As shown, the sealing bow rod 20 includes a second rod body 21, and a sealing mold 22 is installed at the front end of the second rod body 21. Figure 3As shown, a bottom roll hole 24 is provided on the front end surface of the sealing mold 22, and the bottom roll hole 24 is coaxially arranged with the bottom roll receiving hole 18 of the sealing wire bow rod 10. The entrance of the bottom roll hole 24 is an arc-shaped guide hole 25 folded outward, and a circular arc-shaped guide groove 26 is provided at the bottom of the bottom roll hole 24. The side wall of the arc-shaped guide groove 26 coincides with the side wall of the arc-shaped guide hole 25. When in use, the thrust device applies an axial thrust to the sealing wire bow rod 10. In this embodiment, the thrust device is preferably a cam track, and the sealing wire bow rod 10 and the sealing bow rod 20 are relatively moved by the change of the cam track. During the movement, the positioning rod 12 is inserted into the inner cavity of the battery shell, and then as the sealing wire bow rod 10 moves, when the battery shell contacts the positioning mold, the positioning mold pushes the battery shell to move synchronously. When the battery shell contacts the sealing mold 22, the bottom of the battery shell shrinks inward under the action of the arc guide hole 25, and then the shrinking part enters the arc guide groove 26, and the shrinking part bends under the action of the arc guide groove 26, thereby completing the rolling of the bottom of the battery shell and forming the rolling bottom of the battery, and the end of the battery shell rolling bottom enters the rolling bottom accommodating hole 18.

[0026] In this embodiment, if Figure 2 As shown, the front end of the second rod body 21 has a threaded joint 23, and the sealing mold 22 is threadedly installed on the threaded joint 23, so that the sealing mold 22 can be disassembled. Furthermore, a stop is provided on the rear side of the sealing mold 22, and a step matching the stop is provided on the threaded joint 23. When the sealing mold 22 is installed, when the stop contacts the step, it indicates that the sealing mold 22 is installed in place, and the installation of the sealing mold 22 is completed.

[0027] In this embodiment, in order to realize the relative movement of the wire sealing bow rod 10 and the sealing bow rod 20, as shown in FIG. Figure 4 and Figure 5The frame is provided with mounting plates at intervals, and both ends of the rotating shaft 31 are rotatably mounted on the mounting plates, and the rotating shaft 31 is driven by a driving device, and the driving device is mounted on the frame. In this embodiment, a gear 41 is mounted on one end of the rotating shaft 31, and the driving device drives the rotating shaft 31 to rotate through gear transmission. Further, a sealing bow rod mounting seat 34 and a sealing bow rod mounting seat 37 are also synchronously mounted on the rotating shaft 31. A plurality of sealing bow rods 10 evenly distributed on the same circumference are mounted on the sealing bow rod mounting seat 34, and both ends of the sealing bow rod 10 protrude from the sealing bow rod mounting seat 34. A plurality of sealing bow rods 20 are mounted on the sealing bow rod mounting seat 37, and both ends of the sealing bow rod 20 protrude from the sealing bow rod mounting seat 37. The sealing wire bow rod 10 is coaxially arranged with the corresponding sealing bow rod 20. A first cam seat 32 is also mounted on the mounting plate close to the sealing wire bow rod 10. A first cam track 33 is provided on the first cam seat 32. A first ball bearing rollingly mounted in the first cam track 33 is provided at the end of the sealing wire bow rod 10. When the rotating shaft 31 drives the first cam seat 32 to rotate, the first ball bearing rolls along the first cam track 33, so that the sealing wire bow rod 10 The wire bow rod 10 moves axially under the action of the first cam track 33, and a second cam seat 39 is installed on the mounting plate close to the sealing bow rod 20. The second cam seat 39 is provided with a second cam track 40. The end of the sealing bow rod 20 is provided with a second ball bearing rollingly installed in the second cam track 40. Similarly, when the rotating shaft 31 drives the second cam seat 39 to rotate, the second ball bearing rolls along the second cam track 40. Therefore, the sealing bow rod 20 moves axially under the action of the second cam track 40. A battery rotating disk 36 is also synchronously installed on the rotating shaft 31. It has a slot for placing batteries, and the battery rotating disk 36 is located between the sealing bow rod mounting seat 34 and the sealing bow rod mounting seat 37. When the distance between the sealing bow rod 20 and the sealing bow rod 10 is at the minimum value, the battery shell is completed at this time, and when the distance between the sealing bow rod 20 and the sealing bow rod 10 is at the maximum value, at this time, the battery can be fed into the battery rotating disk 36 and the battery after the bottom is rolled can be transported to the next station. Of course, how the battery is loaded into the battery rotating disk 36 and how the battery is transported to the next station does not belong to the content of the invention, so it will not be repeated.

[0028] In this embodiment, if Figure 4 and Figure 5As shown, a wire sealing bow rod guide hole 35 is provided on the wire sealing bow rod mounting seat 34, and the wire sealing bow rod 10 is slidably mounted in the wire sealing bow rod guide hole 35. The sliding cooperation between the wire sealing bow rod 10 and the wire sealing bow rod guide hole 35 ensures the accuracy of the axial movement of the wire sealing bow rod 10. A first guide groove 44 corresponding to the wire sealing bow rod guide hole 35 is also provided on the wire sealing bow rod mounting seat 34, and a first guide block is radially arranged on the wire sealing bow rod 10, and the first guide block is slidably mounted in the first guide groove 44. The sliding cooperation between the first guide block and the first guide groove 44 prevents the wire sealing bow rod 10 from rotating circumferentially, thereby ensuring the reliability of the installation of the wire sealing bow rod 10.

[0029] In this embodiment, if Figure 4 and Figure 5 As shown, a sealing bow rod guide hole 38 is provided on the sealing bow rod mounting seat 37, and the sealing bow rod 20 is slidably mounted in the sealing bow rod guide hole 38. The sliding cooperation between the sealing bow rod 20 and the sealing bow rod guide hole 38 ensures the accuracy of the axial movement of the sealing bow rod 20. A second guide groove 45 corresponding to the sealing bow rod guide hole 38 is also provided on the sealing bow rod mounting seat 37. A second guide block is radially arranged on the sealing bow rod 20, and the second guide block is slidably mounted in the second guide groove 45. The sliding cooperation between the second guide block and the second guide groove 45 prevents the sealing bow rod 20 from rotating circumferentially, thereby ensuring the reliability of the installation of the sealing bow rod 20.

[0030] In this embodiment, if Figure 4 and Figure 5 As shown, a first bearing 42 is installed in the first cam seat 32, and the first bearing 42 is sleeved on one end of the rotating shaft 31. A second bearing 43 is installed in the second cam seat 39, and the second bearing 43 is sleeved on the other end of the rotating shaft 31. Through the first bearing 42 and the second bearing 43, the rotating shaft 31 can rotate relative to the first cam seat 32 and the second cam seat 39. At the same time, the coaxiality among the first cam seat 32, the second cam seat 39 and the rotating shaft 31 is also guaranteed, thereby ensuring the reliability of the shell bottom rolling mechanism.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire sealing bow rod, characterized in that: The invention comprises a first rod body, a mounting hole is provided at the bottom of the first rod body, a positioning rod is elastically installed in the mounting hole, a bottom rolling accommodating hole is provided at the bottom of the positioning rod, the positioning rod has an insertion part and a positioning part, the insertion part is cooperated and installed in the mounting hole, a limiting step is formed between the insertion part and the positioning part, a limiting mold is sleeved on the positioning part, and the limiting mold is installed at the bottom of the first rod body by a countersunk screw, a spring mounting hole is axially provided on the insertion part, a compression spring is installed in the spring mounting hole, and one end of the compression spring abuts against the bottom of the mounting hole.

2. The wire sealing bow rod according to claim 1, characterized in that: A gasket is also installed at the bottom of the mounting hole, and one end of the compression spring abuts against the gasket.

3. A shell bottom roll assembly, characterized in that: It comprises a fixed sealing bow rod and the sealing bow rod as claimed in claim 1 or 2, the sealing bow rod and the sealing bow rod are coaxially arranged, the front end of the sealing bow rod is connected to a thrust device for moving the sealing bow rod toward the sealing bow rod, the sealing bow rod comprises a second rod body, a sealing mold is installed at the front end of the second rod body, a bottom rolling hole is provided on the front end surface of the sealing mold, the bottom rolling hole is coaxially arranged with the bottom rolling accommodating hole of the sealing bow rod, the entrance of the bottom rolling hole is an arc-shaped guide hole folded outward, a circular arc-shaped guide groove is provided at the bottom of the bottom rolling hole, and the side wall of the arc-shaped guide groove coincides with the side wall of the arc-shaped guide hole.

4. A shell bottom rolling assembly according to claim 3, characterized in that: The front end of the second rod body is provided with a threaded joint, and the sealing mold is threadedly mounted on the threaded joint.

5. The shell bottom rolling assembly according to claim 4, characterized in that: A stopper is arranged on the rear side of the sealing die, and a step matching the stopper is arranged on the threaded joint.

Images