Locking mechanism of cantilever discharging car

Abstract

The utility model relates to the technical field of battery pole piece production equipment, and discloses a locking mechanism of a cantilever unloading car, which comprises an unloading car body, the unloading car body is provided with an unloading arm, the head end of the unloading arm is provided with a locking assembly, the locking assembly is connected with a butt joint in a locking way, and the butt joint is connected with the tail end of a rolling shaft; when the locking assembly and the butt joint are locked, the discharging arm and the winding shaft are coaxially arranged and do not have relative displacement in the axial direction, and the outer diameter of the discharging arm, the outer diameter of the winding shaft, the outer diameter of the locking assembly and the outer diameter of the butt joint are the same. According to the scheme, locking and loosening of the winding shaft by the discharging trolley are achieved through the locking assembly, movement of the discharging trolley during discharging can be prevented, the risks of blockage and material roll sliding during discharging are reduced, and the safety accidents that pole pieces are damaged due to movement of the discharging trolley and operators are injured by crashing are reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery electrode production equipment technology, and in particular to a locking mechanism for a cantilever unloading vehicle. Background Technology

[0002] Electrodes are a crucial component of batteries, primarily manufactured through processes such as coating, rolling, and slitting. The slitting process involves cutting the rolled electrode sheets to various required specifications using a slitting machine, and then winding the cut strips into rolls for subsequent processes. After slitting, the electrode sheets are typically wound onto a take-up shaft to form rolls. In actual production, due to the large quantity and weight of the rolls, and the relatively high position of the take-up shaft, manual unloading is difficult. Therefore, unloading devices are generally used to unload the rolls.

[0003] Existing unloading devices typically consist of an unloading trolley body with a dedicated unloading arm for suspending the coil. During coil unloading, the operator first moves the unloading trolley body to one side of the take-up shaft, ensuring accurate alignment between the unloading arm and the shaft. Once aligned, the coil moves from the take-up shaft to the unloading arm. The operator then manually pushes the unloading trolley body to transfer the coil from the take-up shaft to a designated storage area or the starting point of the next process. However, when the coil is heavy, there is a risk of the unloading trolley shifting during unloading, leading to jamming or detachment of the coil, potentially damaging the electrode sheets and causing an accident where the coil slips and injures the operator.

[0004] Chinese Patent CN202421147202.4 discloses a material unloading safety lock structure, including a pin for preventing slippage of a material roll, the pin being inserted through and slidably connected to the unloading arm; a first mating head disposed on the unloading arm, the first mating head having a receiving hole; and a locking tongue, with a rotating shaft disposed between the locking tongue and the wall of the receiving hole, the locking tongue being rotatably disposed within the receiving hole around the rotating shaft, wherein the connecting end is rotatably disposed on the pin and used for the pin to slide, and a reset member is disposed between the locking tongue and the first mating head for resetting the locking tongue after rotation. This invention, by having the locking tongue drive the pin through the unloading arm, prevents the material roll from slipping, thus reducing the risk of material roll slippage, minimizing damage to the electrode sheets caused by material roll slippage, and reducing the risk of operator injury from impacts. However, this solution requires improvement.

[0005] This invention overcomes the shortcomings of the prior art by providing a locking mechanism for a cantilever unloading vehicle, which improves the stability of the unloading process. Utility Model Content

[0006] The main purpose of this utility model is to provide a locking mechanism for a cantilever unloading vehicle, including an unloading vehicle body, an unloading arm provided on the unloading vehicle body, a locking component provided at the head end of the unloading arm, the locking component being locked to a connector, and the connector being connected to the tail end of a take-up shaft.

[0007] When the locking component locks with the connector, the unloading arm and the winding shaft are coaxially arranged and have no relative displacement in the axial direction. The outer diameters of the unloading arm, the winding shaft, the locking component, and the connector are the same.

[0008] Optionally, the locking component is an air-expanding head, which includes a connecting part and a locking part. The connecting part is fixedly connected to the head end of the unloading arm, and the outer diameter of the connecting part is the same as the outer diameter of the unloading arm.

[0009] The outer diameter of the locking part matches the inner diameter of the mating hole of the connector. The peripheral surface of the locking part is provided with a plurality of air expansion plates, which can extend and retract on the peripheral surface of the locking part.

[0010] The peripheral surface of the connecting part is provided with an air hole, which is connected to the air expansion plate. Gas is introduced through the air hole to push the air expansion plate to expand outward and abut against the inner wall of the docking hole.

[0011] Optionally, the air inflator is provided with a spring, a push block, and an air chamber inside. The air chamber is surrounded by the inner wall of the push block and the connecting part. The air chamber is connected to the inflation hole. The contact surface between the push block and the air inflator is an inclined surface. The spring is provided between the bottom of the push block and the bottom of the air inflator. When the air chamber is inflated, it pushes the push block to move towards the bottom of the air inflator, pushing the air inflator to expand outward.

[0012] Optionally, the peripheral surface of the connecting part is provided with a spare air hole, and the spare air hole is connected to the space between the push block and the bottom of the air head.

[0013] Optionally, the surface of the air expansion piece is coated with rubber, and when the locking part matches the mating hole, the rubber coating is located between the inner wall of the air expansion piece and the mating hole.

[0014] Optionally, the connector and the take-up shaft are an integral structure, with one end of the connector being integrally fixedly connected to the take-up shaft and the other end having a mating hole for accommodating the locking part;

[0015] The inner wall of the docking hole is provided with a limiting groove, and the air expansion plate is provided with a limiting block corresponding to the limiting groove. When the air expansion plate expands, it will insert the limiting block into the limiting groove.

[0016] Optionally, the circumferential surface of the connector is provided with a knockback hole, the limiting groove is projected radially onto the area of ​​the circumferential surface of the connector, the knockback hole is located in this area, and the knockback hole communicates with the limiting groove.

[0017] Optionally, the circumferential surface of the take-up shaft is provided with multiple sets of rollers arranged along the axial direction, and the circumferential surface of the unloading arm is provided with multiple sets of rollers arranged along the axial direction.

[0018] Optionally, the unloading vehicle body includes a movable frame and a support frame. The movable frame is equipped with movable rollers, and the support frame is mounted on the movable frame. One side of the support frame is fixedly connected to the tail end of the unloading arm.

[0019] Optionally, a control box is provided on the other side of the support frame, and a handle is provided on the top of the control box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The locking mechanism of the cantilever unloading vehicle provided by this utility model realizes the locking and unlocking of the unloading vehicle to the winding shaft through the locking component, which can prevent the movement of the unloading vehicle during unloading, reduce the risk of jamming and material roll slippage during unloading, and reduce the occurrence of safety accidents such as damage to the electrode sheet and injury to the operator caused by the movement of the unloading vehicle. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 This is a schematic diagram of an embodiment of the locking mechanism of the cantilever unloading vehicle of this utility model;

[0024] Figure 2 This is a partial enlarged view of embodiment A of the locking mechanism of the cantilever unloading vehicle of this utility model;

[0025] Figure 3 This is a schematic diagram of the locking component of an embodiment of the locking mechanism of the cantilever unloading vehicle of this utility model;

[0026] Figure 4 This is a cross-sectional view of the locking component in an embodiment of the locking mechanism of the cantilever unloading vehicle of this utility model;

[0027] Figure 5 This is a schematic diagram of the winding shaft of an embodiment of the locking mechanism of the cantilever unloading vehicle of this utility model;

[0028] Figure 6 This is a cross-sectional view of an embodiment of the locking mechanism of the cantilever unloading vehicle of this utility model.

[0029] Figure label:

[0030] 10-Unloading vehicle body; 11-Moving frame; 111-Moving roller; 12-Support frame; 121-Control box; 122-Handle; 20-Unloading arm; 30-Locking assembly; 31-Connecting part; 311-Inflation hole; 312-Spare inflation hole; 32-Locking part; 321-Air expansion plate; 322-Limit block; 33-Spring; 34-Push block; 35-Air chamber; 40-Connecting joint; 41-Mating hole; 411-Limit groove; 42-Knockback hole; 50-Rewinding shaft; 60-Roller; 70-Material roll. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0032] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1-6 The diagram shown is a schematic representation of an embodiment of the locking mechanism of the cantilever unloading vehicle provided by this utility model.

[0035] Please refer to Figure 1-6 This embodiment is used for unloading after the electrode is wound, and mainly solves the problem of the movement of the unloading vehicle during the existing electrode unloading process, thereby improving the stability and safety of the unloading process.

[0036] This embodiment includes an unloading vehicle body 10, which is equipped with an unloading arm 20. A locking component 30 is located at the head end of the unloading arm 20, and the locking component 30 is locked to a coupling joint 40. The coupling joint 40 is connected to the tail end of a take-up shaft 50. The coupling joint 40 is part of the take-up shaft 50. The unloading vehicle body 10 moves the unloading arm 20 closer to the coupling joint 40, aligning and connecting it with the coupling joint 40. Then, the locking component 30 locks the coupling joint 40 and the unloading arm 20, thereby achieving coaxial locking of the unloading arm 20 and the take-up shaft 50.

[0037] When the locking assembly 30 and the coupling 40 are locked, the unloading arm 20 and the take-up shaft 50 are coaxially arranged and have no relative displacement in the axial direction. Specifically, after the locking assembly 30 is locked, it restricts the axial and radial relative displacement between the unloading arm 20 and the take-up shaft 50 to prevent the material roll from falling off the take-up shaft 50 or the unloading arm 20 and damaging the material roll during the unloading process. The outer diameters of the unloading arm 20, the take-up shaft 50, the locking assembly 30, and the coupling 40 are the same to ensure that the material roll moves smoothly from the take-up shaft 50 to the unloading arm 20.

[0038] In one embodiment, the locking component 30 is an air-expanding head, which includes a connecting portion 31 and a locking portion 32. The connecting portion 31 is fixedly connected to the head end of the unloading arm 20, and the outer diameter of the connecting portion 31 is the same as the outer diameter of the unloading arm 20. While an air-expanding head is used as one type of locking component 30, other locking structures besides air-expanding heads can also be used in other embodiments.

[0039] The outer diameter of the locking part 32 matches the inner diameter of the mating hole 41 of the connector 40, allowing the locking part 32 to be inserted into the mating hole 41 of the connector 40. The circumferential surface of the locking part 32 is provided with multiple air expansion plates 321, which are retractable on the circumferential surface of the locking part 32. The circumferential surface of the connecting part 31 is provided with an inflation hole 311, which communicates with the air expansion plates 321. Gas is introduced through the inflation hole 311 to push the air expansion plates 321 outwards to abut against the inner wall of the mating hole 41.

[0040] When the locking part 32 is aligned with the connector 40, the air expansion piece 321 is in a retracted state and does not interfere with the alignment and assembly of the locking part 32 and the connector 40. After the locking part 32 and the connector 40 are assembled in place, air is introduced into the inflation hole 311 to push the air expansion piece 321 outward, so that the air expansion piece 321 abuts against the inner wall of the mating hole 41, thereby locking and fixing the air expansion head and the connector 40.

[0041] In one embodiment, such as Figure 4 As shown, the air inflator head is internally equipped with a spring 33, a push block 34, and an air chamber 35. The air chamber 35 is formed by the push block 34 and the inner wall of the connecting part 31, and the air chamber 35 communicates with the inflation hole 311. The contact surface between the push block 34 and the air expansion plate 321 is an inclined surface, and a spring 33 is provided between the bottom of the push block 34 and the bottom of the air inflator head. When the air chamber 35 is inflated through the inflation hole 311, it pushes the push block 34 to move towards the bottom of the air inflator head, pushes the air expansion plate 321 to expand outward, and the push block 34 compresses the spring 33. The push block 34 is balanced by air pressure and elastic force, and at this time the air inflator head is locked with the connector 40. When the gas inside the air chamber 35 is released, the spring 33 releases the compressed elastic force, pushes the push block 34 away from the bottom of the air inflator head, and the air expansion plate 321 contracts inward. At this time, the air inflator head is released from the connector 40. The air inflator structure provided in this embodiment is one type of air inflator. Other air inflator structures that play a locking role can also be used in other embodiments.

[0042] Furthermore, the peripheral surface of the connecting part 31 is provided with a spare inflation hole 312, which is connected to the space between the spare inflation hole 312 and the push block 34 and the bottom of the air expansion head. When the spring 33 fails and cannot push the push block 34 to retract the air expansion plate 321, the spare inflation hole 312 is inflated, and the air pressure pushes the push block 34 away from the bottom of the air expansion head, causing the air expansion plate 321 to retract.

[0043] In addition, the surface of the air expansion plate 321 is coated with rubber. When the locking part 32 matches the mating hole 41, the rubber coating is located between the inner wall of the air expansion plate 321 and the mating hole 41. The rubber coating increases the friction between the air expansion plate 321 and the mating hole 41, thereby increasing the friction that prevents the unloading vehicle body 10 from moving. At the same time, it also prevents metal-to-metal friction between the air expansion head and the mating joint 40, which could lead to contamination of the electrode sheet.

[0044] In one embodiment, the connector 40 and the take-up shaft 50 are integrally formed. One end of the connector 40 is integrally fixedly connected to the take-up shaft 50, and the other end is provided with a mating hole 41 for accommodating the locking part 32. The inner wall of the mating hole 41 is provided with a limiting groove 411, and the air expansion plate 321 is provided with a limiting block 322 corresponding to the limiting groove 411. When the air expansion plate 321 expands, it engages the limiting block 322 into the limiting groove 411. The limiting groove 411 is annular, and the limiting groove 411 and the limiting block 322 further limit the axial and radial displacement of the connector 40 and the air expansion head after assembly.

[0045] Furthermore, the circumferential surface of the connector 40 is provided with a knockback hole 42. The limiting groove 411 is projected radially onto the area of ​​the circumferential surface of the connector 40, and the knockback hole 42 is located in this area and communicates with the limiting groove 411. The purpose of setting the knockback hole 42 is to allow the rod to extend through the knockback hole 42 to contact the limiting block 322 inside the mating hole 41. When the air expansion plate 321 gets stuck and cannot retract, the rod extends into the knockback hole 42 to contact the limiting block 322, and the rod strikes the limiting block 322 to knock it back.

[0046] In one embodiment, the circumferential surface of the take-up shaft 50 is provided with multiple sets of axially arranged rollers 60, and the circumferential surface of the unloading arm 20 is also provided with multiple sets of axially arranged rollers 60. The rollers 60 reduce the friction of the wound material when it moves axially along the take-up shaft 50 or the unloading arm 20. The first end of the take-up shaft 50 is connected to the motor via a connecting shaft, which is a conventional structure and will not be described in detail.

[0047] In one embodiment, the unloading vehicle body 10 includes a movable frame 11 and a support frame 12. The movable frame 11 is provided with movable rollers 111. The support frame 12 is disposed on the movable frame 11. The tail end of the unloading arm 20 is fixedly connected to one side of the support frame 12. The movable frame 11 drives the support frame 12 and the unloading arm 20 to move, thereby realizing the subsequent transfer of the rolled material after unloading from the take-up shaft 50.

[0048] Furthermore, a control box 121 is provided on the other side of the support frame 12, and a handle 122 is provided on the top of the control box 121. The unloading process is controlled by the control box 121, and the unloading vehicle 10 is easily moved by the handle 122.

[0049] The specific working process of this embodiment is as follows:

[0050] After being slit by a slitting blade and other processes, the battery electrode sheets are cut into strips of the required specifications. These strips are then wound onto a take-up shaft 50. When the strip 70 reaches the specified size, it needs to be transferred. Transferring the strip 70 (the size and quantity of the strips are for illustrative purposes only) requires the use of an unloading trolley 10. The operator moves the unloading trolley 10 to one side of the take-up shaft 50, aligning the unloading arm 20 and the take-up shaft 50 at the same height. The strip 70 is then pushed from the take-up shaft 50 onto the unloading arm 20. The operator then manipulates the unloading trolley 10 to transfer the strip 70 to the designated position, completing the unloading process. To prevent the unloading trolley 10 from detaching from the take-up shaft 50 during the process of pushing the strip 70 from the take-up shaft 50, which could cause jamming or even the strip falling during the transfer, a locking component 30 is added to lock and secure the unloading arm 20 to the take-up shaft 50.

[0051] When locked, the unloading vehicle body 10 is aligned with the take-up shaft 50. At this time, the air expansion plate 321 of the air expansion head is in a retracted state, and the outer diameter of the locking part 32 is slightly smaller than the inner diameter of the docking hole 41 of the connector 40, allowing for easy alignment. When aligned, the operator inflates the air expansion head through the inflation port 311. As the air is inflated, the air expansion plate 321 expands, generating pressure on the inner wall of the docking hole 41, which in turn generates friction that prevents the unloading vehicle body 10 from moving. At the same time, the limiting block 322 of the air expansion plate 321 engages with the limiting groove 411 of the connector 40, forming a mechanical lock, further preventing the unloading vehicle body 10 from moving during the unloading process.

[0052] When releasing, confirm that the material roll 70 has been completely transferred to the unloading arm 20, press the inflation port 311 to release the gas inside the air inflator, and the air inflator 321 will retract. At this time, the locking mechanism will unlock, and the connection between the unloading carriage 10 and the winding shaft 50 will be disconnected. The operator can then move the unloading carriage 10 to the designated position. The spare inflation port 311 and the knockback hole 42 are provided as remedial measures in case of extreme situations. Under normal circumstances, the locking and unlocking of the locking structure 30 of the unloading carriage 10 can be achieved by using the inflation port 311 for inflation and deflation operations.

[0053] In summary, the electrode sheet is wound into a coil at the take-up shaft. The air expansion head of the unloading arm mates with the take-up shaft connector. Inflating the air expansion head causes its air expansion plates to expand. Simultaneously, the limiting block of the air expansion plate engages with the limiting groove of the connector, thereby achieving relative locking between the unloading trolley and the take-up shaft. This solves the problem of movement of the unloading trolley during the unloading process, preventing movement and reducing the risk of jamming and coil slippage during unloading. It also reduces the risk of electrode sheet damage and operator injury caused by unloading trolley movement. This embodiment uses the principle of air expansion to achieve locking. Locking and unlocking of the mechanism can be achieved simply by controlling the inflation and deflation of air. The operation is simple, convenient, and quick. Furthermore, the locking force can be controlled by controlling the pressure of the compressed gas, ensuring safety and reliability.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A locking mechanism for a cantilever unloading vehicle, characterized in that, Includes an unloading vehicle body, the unloading vehicle body is provided with an unloading arm, the front end of the unloading arm is provided with a locking component, the locking component is locked to a connector, and the connector is connected to the tail end of a take-up shaft; When the locking component locks with the connector, the unloading arm and the winding shaft are coaxially arranged and have no relative displacement in the axial direction. The outer diameters of the unloading arm, the winding shaft, the locking component, and the connector are the same.

2. The locking mechanism of the cantilever unloading vehicle according to claim 1, characterized in that, The locking component is an air expansion head, which includes a connecting part and a locking part. The connecting part is fixedly connected to the head end of the unloading arm, and the outer diameter of the connecting part is the same as the outer diameter of the unloading arm. The outer diameter of the locking part matches the inner diameter of the mating hole of the connector. The peripheral surface of the locking part is provided with a plurality of air expansion plates, which can extend and retract on the peripheral surface of the locking part. The peripheral surface of the connecting part is provided with an air hole, which is connected to the air expansion plate. Gas is introduced through the air hole to push the air expansion plate to expand outward and abut against the inner wall of the docking hole.

3. The locking mechanism of the cantilever unloading vehicle according to claim 2, characterized in that, The air inflator is internally provided with a spring, a push block, and an air chamber. The air chamber is formed by the inner wall of the push block and the connecting part. The air chamber is connected to the inflation hole. The contact surface between the push block and the air inflator is an inclined surface. The spring is provided between the bottom of the push block and the bottom of the air inflator. When the air chamber is inflated, it pushes the push block to move towards the bottom of the air inflator, pushing the air inflator to expand outward.

4. The locking mechanism of the cantilever unloading vehicle according to claim 3, characterized in that, The peripheral surface of the connecting part is provided with a spare air hole, which is connected to the space between the push block and the bottom of the air head.

5. The locking mechanism of the cantilever unloading vehicle according to claim 2, characterized in that, The surface of the air expansion piece is coated with rubber. When the locking part matches the mating hole, the rubber coating is located between the inner wall of the air expansion piece and the mating hole.

6. The locking mechanism of the cantilever unloading vehicle according to claim 2, characterized in that, The connector and the take-up shaft are an integral structure. One end of the connector is integrally fixedly connected to the take-up shaft, and the other end is provided with a mating hole for accommodating the locking part. The inner wall of the docking hole is provided with a limiting groove, and the air expansion plate is provided with a limiting block corresponding to the limiting groove. When the air expansion plate expands, it will insert the limiting block into the limiting groove.

7. The locking mechanism of the cantilever unloading vehicle according to claim 6, characterized in that, The circumferential surface of the connector is provided with a knockback hole, the limiting groove is projected radially onto the area of ​​the circumferential surface of the connector, the knockback hole is located in this area, and the knockback hole communicates with the limiting groove.

8. The locking mechanism of the cantilever unloading vehicle according to claim 1, characterized in that, The circumferential surface of the take-up shaft is provided with multiple sets of rollers arranged along the axial direction, and the circumferential surface of the unloading arm is provided with multiple sets of rollers arranged along the axial direction.

9. The locking mechanism of the cantilever unloading vehicle according to claim 1, characterized in that, The unloading vehicle body includes a movable frame and a support frame. The movable frame is equipped with movable rollers, and the support frame is mounted on the movable frame. One side of the support frame is fixedly connected to the tail end of the unloading arm.

10. The locking mechanism of the cantilever unloading vehicle according to claim 9, characterized in that, A control box is located on the other side of the support frame, and a handle is provided on the top of the control box.

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