Cylindrical battery cap vertical feeding assembly

Abstract

A cylindrical battery cap vertical feeding assembly, comprising a feeding rack, a channel body with a discharging channel arranged on the feeding rack, and a feeding turntable arranged on the feeding rack and below the discharging channel and having a receiving port, the feeding turntable being provided with a positioning mechanism one for limiting the cap in the receiving port; the feeding turntable can rotate in a vertical plane with a linear center axis perpendicular to the vertical plane, so as to rotate and convey the cap to the battery tab. The present application has small damage to the cap by rotating and conveying through the feeding turntable, compared with directly pushing the vertical cap in the cap conveying channel in the prior art, so as to improve the final qualification rate of the battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cylindrical battery welding, in particular to a cylindrical battery cap vertical feeding assembly. BACKGROUND

[0002] The cylindrical battery is mainly composed of a shell, a cap, a positive electrode and a negative electrode, the positive electrode and the negative electrode are respectively connected with a positive electrode tab and a negative electrode tab, the positive electrode is welded with the cap through the positive electrode tab, the negative electrode is welded with the bottom of the shell through the negative electrode tab, and the cap is tightly capped at the opening of the shell.

[0003] In the process of welding the positive electrode tab and the cap, the tab is generally in an upright state, the cap is vertically sent to the tab position and is in close contact with the tab, and then the tab and the cap are welded together by a welding device. Such a welding method prevents the cap and the positive electrode from being welded together. If the cap and the positive electrode are welded together, the cap is connected with the positive electrode and the tab at the same time, which causes a short circuit. After the tab and the cap are welded together, the tab and the cap are flattened to make the cap capped at the opening of the shell.

[0004] When the tab and the cap are welded together, the battery cap is vertically sent to the tab position of the battery core by the feeding mechanism. The existing feeding mechanism allows the vertically standing cap to pass through the feeding channel and then enter the cap conveying channel below the feeding channel, and then the cap is directly pushed to the tab position by the driving mechanism. Such a feeding mechanism is prone to cause wear and tear of the cap during the pushing process, which affects the final pass rate of the battery. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a cylindrical battery cap vertical feeding assembly which causes less damage to the cap during feeding.

[0006] A cylindrical battery cap vertical feeding assembly, comprising a feeding rack, a channel body with a feeding channel is arranged on the feeding rack, a feeding turntable is arranged on the feeding rack and is arranged below the feeding channel and has a receiving port, a positioning mechanism one for limiting the cap in the receiving port is arranged on the feeding turntable, the feeding turntable can rotate in the vertical plane with a straight line perpendicular to the vertical plane as the center axis to realize the rotation of the cap to the battery tab.

[0007] In this technical solution, the cap is rotated and conveyed by the feeding turntable, which causes less damage to the cap compared with the prior art of directly pushing the vertically standing cap in the cap conveying channel, thereby improving the final pass rate of the battery.

[0008] Preferably, the positioning mechanism one is a suction mechanism, and the receiving port is provided with a mounting hole for mounting the suction mechanism.

[0009] Preferably, the suction mechanism comprises an electromagnet.

[0010] Preferably, the number of the material receiving ports is multiple, and the multiple material receiving ports are distributed on the feeding turntable at equal angles and around the central axis of the feeding turntable, and any material receiving port with the cap is rotated to be directly below the discharging channel when the cap is rotated.

[0011] Preferably, the feeding turntable transports the caps at an angle of alpha per rotation.

[0012] Preferably, the feeding frame is further provided with a second positioning structure, which comprises a positioning head and a positioning head driving mechanism for driving the positioning head to horizontally approach or move away from the material receiving port.

[0013] The positioning head is provided with a magnetic attraction structure capable of attracting the cap and a positioning pin capable of cooperating with a positioning groove pre-set at the center of the cap, and the side of the feeding turntable close to the positioning head is communicated with the material receiving port.

[0014] Preferably, the discharging channel is provided with a discharging control mechanism for controlling the discharging progress, and the discharging control mechanism comprises a blocking piece laterally penetrating into the discharging channel and a blocking piece driving mechanism connected with the blocking piece and capable of driving the blocking piece to exit the discharging channel.

[0015] Preferably, the channel body is connected with a material sensor for monitoring whether the discharging channel contains the cap.

[0016] In summary, the present application has the following advantages:

[0017] 1: The present application transports the caps by rotating the feeding turntable, which is less damaging to the caps than directly pushing the caps in the cap conveying channel in the prior art, thereby improving the final qualification rate of the battery.

[0018] 2: The present application sets the second positioning structure, which comprises a positioning head and a positioning head driving mechanism for driving the positioning head to horizontally approach or move away from the material receiving port, and the positioning head is provided with a magnetic attraction structure capable of attracting the cap and a positioning pin capable of cooperating with a positioning groove pre-set at the center of the cap, so as to ensure that each cap can obtain a reasonable height, and the whole formed by the tab and the cap after welding can completely cover the opening of the shell after being flattened, thereby improving the qualification rate of welding.

[0019] 3: The present application sets the discharging control mechanism, which releases only one cap when the idle material receiving port is rotated to be below the discharging channel, thereby ensuring the feeding quality of the vertical feeding mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the vertical feeding assembly;

[0021] Figure 2 It is a partial enlarged view of the vertical feeding assembly;

[0022] Figure 3 It is a structural schematic view of the positioning structure two;

[0023] Figure 4 It is a structural schematic view of the positioning head. DETAILED DESCRIPTION

[0024] The application will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Embodiment: a cylindrical battery cap vertical feeding assembly, referring to Figures 1-4 As shown, it comprises a feeding frame 50, the feeding frame 50 is provided with a channel body 51 with a discharging channel, the discharging channel provides a movement channel for the cap and limits the cap to fall vertically, the feeding frame 50 is further provided with a feeding turntable 52, the feeding turntable 52 is arranged below the discharging channel and has a receiving port 521 for receiving the cap falling vertically from the discharging channel, the feeding turntable 52 is provided with a positioning mechanism one 53 for limiting the cap in the receiving port 521, after the receiving port 521 aligns with the discharging channel and receives the cap, the positioning mechanism one 53 acts to limit the cap in the receiving port 521, then, the feeding turntable 52 rotates and rotates in the vertical plane with a straight line perpendicular to the vertical plane as the center axis to rotate and convey the cap to the battery tab of the battery clamped in advance, the feeding turntable 52 can realize precise angle rotation through a control motor such as a servo motor. The positioning mechanism one 53 always limits the cap in the receiving port 521 when the feeding turntable 52 rotates, so that the cap does not fall from the receiving port 521.

[0026] The vertical feeding assembly utilizes the rotation conveying of the feeding turntable 52, which is less damaging to the cap compared with directly pushing the vertical cap in the cap conveying channel in the prior art, thereby improving the final qualification rate of the battery.

[0027] In this embodiment, the positioning mechanism one 53 adopts a suction mechanism, the suction mechanism preferably adopts an electromagnet, the receiving port 521 is provided with a mounting hole 522 for mounting the suction mechanism, the mounting hole 522 is radially outward.

[0028] In this embodiment, the number of material receiving ports 521 is multiple, and the multiple material receiving ports 521 are distributed on the feeding turntable 52 at equal angles a around the center axis of the feeding turntable 52, and any material receiving port 521 with a cap is rotated to directly below the discharging channel while rotating the caps, and there is an empty material receiving port 521 rotating to directly below the discharging channel. The advantage is that during the rotation of the caps, the empty material receiving port 521 is sent to directly below the discharging channel for loading, without the need for special action to rotate the empty material receiving port 521 to directly below the discharging channel, so it is not necessary to spend special time to rotate the empty material receiving port 521 to directly below the discharging channel, which greatly improves the working efficiency of the vertical feeding assembly. The feeding turntable 52 rotates by an angle a each time to transport the caps, so that in the case of multiple material receiving ports 521 distributed at equal angles a, the maximum transportation efficiency is achieved in the shortest time, and the power input required for each transportation of a cap is less, which saves energy.

[0029] The material receiving port 521 described above is adapted to the shape of the cap and has a size appropriately larger than that of the cap to smoothly receive the cap. After the cap is rotated and transported to the positive tab of the battery by the feeding turntable 52, the positioning mechanism two 53 using an electromagnet is a rough positioning of the cap, which only ensures that the cap will not fall from the material receiving port 521. At this time, if the tab and the cap are directly welded together by a welding device, it is easy to cause unreasonable welding position, which is usually manifested as the cap being welded too high or too low. At this time, moving the tab and the cap as a whole is likely to cause the cap to not completely cover the opening of the shell, which is a defective product or waste product.

[0030] Therefore, the feeding rack 50 is also provided with a positioning structure two 56, which includes a positioning head 561 and a positioning head driving mechanism 562 for driving the positioning head 561 to approach the material receiving port 521 corresponding to the battery tab. The positioning head driving mechanism 562 can be a pneumatic cylinder, preferably a sliding table pneumatic cylinder. The positioning head 561 is connected to the positioning head driving mechanism 562 through a positioning head mounting block 563. The feeding rack 50 is provided with a mounting plate 560 for mounting the positioning head driving mechanism 562. The positioning head 561 is provided with a magnetic attraction structure 5611 capable of attracting the cap and a positioning pin 5612 capable of cooperating with a positioning groove pre-provided at the center of the cap. The magnetic attraction structure 5611 is an electromagnet, which can be directly arranged in the positioning pin 5612 or beside the positioning pin 5612. The side of the feeding turntable 52 close to the positioning head 561 is communicated with the material receiving port 521 and forms a clearance for the positioning pin 5612.

[0031] The working principle of the positioning structure 56 is that when the cap is conveyed, the positioning head driving mechanism 562 is actuated to make the positioning pin 5612 inserted into the positioning groove at the center of the cap, at this time, the magnetic attraction structure 5611 using the electromagnet is energized, the positioning mechanism one 53 using the electromagnet is de-energized, and the cap is attracted, so that each cap can obtain a reasonable height, and the whole formed by the tab and the cap after welding can be completely attached to the opening of the shell after being flattened, thereby improving the qualified rate of welding. When the welding between the cap and the battery tab is completed, the positioning head driving mechanism 562 drives the positioning head 561 to reset, waiting for the next positioning of the new cap.

[0032] Preferably, the discharging channel is provided with a discharging control mechanism 54 for controlling the discharging progress; the discharging control mechanism 54 includes a blocking piece laterally penetrating into the discharging channel, and a blocking piece driving mechanism 542 connected with the blocking piece and capable of driving the blocking piece to exit the discharging channel. The blocking piece can be a rod, which cannot be seen in the drawing due to the angle of view. The blocking piece driving mechanism 542 can be a cylinder, which is installed on the channel body 51. When the idle material receiving port 521 is rotated to below the discharging channel, the blocking piece driving mechanism 542 is actuated to make the blocking piece exit the discharging channel and release a cap. If multiple caps are released at a time, the multiple caps will be stacked together, resulting in low cap feeding quality.

[0033] Preferably, the channel body 51 is connected with a material sensor 55 for monitoring whether the discharging channel contains caps. The material sensor 55 is installed on the channel body 51 through a bracket 551, and the channel body 51 is provided with a detection port 552, and the material sensor 55 faces the detection port 552, monitoring whether the discharging channel contains caps.

[0034] The above-described embodiments are only preferred embodiments of the present application, and do not limit the concept and scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design concept of the present application shall fall within the protection scope of the present application, and the technical content claimed by the present application has been fully recorded in the claims.

Claims

1. A cylindrical battery cap vertical feeding assembly, comprising a feeding frame (50), wherein a channel body (51) with a discharging channel is arranged on the feeding frame (50), characterized in that, Further comprising a feeding turntable (52) arranged on the feeding frame (50), the feeding turntable (52) is arranged below the discharging channel and has a receiving port (521), and the feeding turntable (52) is provided with a positioning mechanism I (53) for limiting the cap in the receiving port (521); the feeding turntable (52) can rotate in the vertical plane with a straight line perpendicular to the vertical plane as the center axis, so as to rotate and convey the cap to the battery tab for welding; The positioning mechanism I (53) is a suction mechanism, and the receiving port (521) is provided with a mounting hole (522) for mounting the suction mechanism; The feeding frame (50) is further provided with a positioning structure II (56), the positioning structure II (56) comprises a positioning head (561) and a positioning head driving mechanism (562) for driving the positioning head (561) to approach the receiving port (521) corresponding to the battery tab; the positioning head (561) is provided with a magnetic attraction structure (5611) capable of sucking the cap and a positioning pin (5612) capable of cooperating with a positioning groove prearranged at the center position of the cap; the side surface of the feeding turntable (52) close to the positioning head (561) is communicated with the receiving port (521).

2. The vertical feeding assembly for cylindrical battery cap according to claim 1, wherein, The suction mechanism comprises an electromagnet.

3. The vertical feeding assembly for cylindrical battery cap according to claim 1, wherein, The number of receiving ports (521) is multiple, and the multiple receiving ports (521) are distributed on the feeding turntable (52) in a circle and at equal angles α with the center axis of the feeding turntable (52) as the center axis, and any receiving port (521) limited by the cap has a corresponding empty receiving port (521) rotating to directly below the discharging channel when rotating and conveying the cap.

4. The cylindrical battery cap vertical feeding assembly according to claim 3, wherein, The feeding turntable (52) conveys the cap by rotating an angle α each time.

5. The cylindrical battery cap vertical feeding assembly of claim 1, wherein, The discharging channel is provided with a discharging control mechanism (54) for controlling the discharging progress; the discharging control mechanism (54) comprises a blocking piece laterally penetrating into the discharging channel and a blocking piece driving mechanism (542) connected with the blocking piece and capable of driving the blocking piece to exit the discharging channel.

6. The cylindrical battery cap vertical feeding assembly of claim 1, wherein, The channel body (51) is connected with a material sensor (55) for monitoring whether the discharging channel contains the cap.

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