Integrated adjusting device applied to lithium battery coating die

Abstract

This utility model relates to the field of lithium battery coating die technology, specifically an integrated adjustment device applied to a lithium battery coating die. The device is mounted on the coating die, which includes a lower die and an upper die. The upper die has N adjusting T-blocks running through it. It includes an integrated bracket connected to the upper die and N direct-connection electric cylinders mounted on the integrated bracket. The N direct-connection electric cylinders are pin-type electric cylinders. All N direct-connection electric cylinders are connected to the upper die via the integrated bracket, and the telescopic ends of the electric cylinders pass through the integrated bracket and connect to the adjusting T-blocks. The integrated bracket includes a connecting plate, N slots on the connecting plate, and a junction box located on one side of the connecting plate. N pin sockets are located above the junction box, and the pin sockets snap into the slots from below. The junction box outlet has a communication interface and a power interface. The telescopic ends of the electric cylinders are connected to the adjusting T-blocks via couplings. The use of direct-connection electric cylinders combined with the integrated bracket avoids the exposed wiring harness from being corroded by the slurry.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery coating die technology, specifically an integrated adjustment device applied to lithium battery coating die. Background Technology

[0002] In lithium battery coating equipment, the die head includes an upper die head and a lower die head, forming a coating opening between them. Adjusting the gap of this coating opening is crucial for ensuring coating quality. An adjustment T-block is located inside the upper die head, with its upper end extending above it. Traditionally, a micrometer and its support are used for adjustment, rigidly connected to the adjustment T-block via a coupling. Manually rotating the micrometer's micrometer head moves the adjustment T-block up and down. The number of micrometer adjustment devices must match the number of adjustment T-blocks. With increasing automation requirements, micrometers are gradually being replaced by servo electric cylinders for automatic adjustment. Specifically, N T-blocks correspond to N electric cylinders, and each of these N electric cylinders has an independent small support connected to the upper die head, requiring independent installation or removal of each of the N electric cylinders. Simultaneously, the communication and power cables for these N electric cylinders are routed from the top of the cylinders and connected to the electrical control system of the coating die head.

[0003] The aforementioned prior art has the following drawbacks:

[0004] like Figure 1 As shown, in the prior art, the conventional electric cylinder 100 is set on the upper mold head. The communication harness and power harness of the conventional electric cylinder 100 are integrated in the harness 101. The harnesses 101 of the 13 conventional electric cylinders 100 are gathered in the junction box 102 and then connected to the electrical control system. Each conventional electric cylinder 100 is connected to the upper mold through an independent bracket 103. When the number of adjustment T blocks is large, the number of harnesses 101 also increases, which is difficult to manage. Moreover, the harnesses 101 are exposed to the production site and are susceptible to corrosion by the coating slurry. After the power harness and communication harness in the harness 101 are corroded, it is easy to cause power or communication interruption, resulting in a decrease in the reliability of the electric cylinder. Furthermore, during long-term use of the coating equipment, the coating slurry will accumulate in the gap between the bottom of the adjusting T-block and the upper mold cavity. The accumulation of dry material in the gap will fill the gap space between the adjusting T-block and the upper mold cavity. If it is not cleaned regularly, the moving resistance of the adjusting T-block during the upward adjustment will increase, affecting the adjustment accuracy. Therefore, it is necessary to clean the dry material accumulated in the gap regularly. At this time, the coating equipment needs to be stopped, and the N electric cylinders need to be removed one by one before the adjusting T-block can be removed for cleaning. After cleaning, the N electric cylinders are installed onto the upper mold head one by one through independent brackets. During the disassembly and assembly of the adjusting T-block for maintenance, the wiring harness 101 of the adjacent traditional electric cylinders 100 will become entangled.

[0005] To address the aforementioned issues, there is an urgent need for an installation solution that eliminates the need for exposed electric cylinder wiring harnesses, thereby preventing unstable operation of the electric cylinders caused by corrosion of the wiring harnesses due to the application of slurry. Utility Model Content

[0006] The problem to be solved is to provide an installation solution without exposed electric cylinder wiring harness, so as to avoid unstable operation of the electric cylinder caused by corrosion of the wiring harness due to coating slurry.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated adjustment device for a lithium battery coating die head, which is mounted on the coating die head, including a lower die and an upper die; the upper die is provided with N adjustment T-blocks; it includes an integrated bracket connected to the upper die and N direct-connection electric cylinders mounted on the integrated bracket, wherein the N direct-connection electric cylinders are pin-type electric cylinders, each including a cylinder telescopic end and a pin connector; all N direct-connection electric cylinders are connected to the upper die through the integrated bracket, and the telescopic end of the direct-connection electric cylinder passes through the integrated bracket and connects to the adjustment T-blocks; the integrated bracket includes a connecting plate, N slots on the connecting plate, and a junction box located on one side of the connecting plate, with N pin seats above the junction box, the pin seats snapping into the slots from below; the junction box outlet is provided with a communication interface and a power interface, and the pin connectors can snap into the slots and connect to the pin seats; wherein the telescopic end of the electric cylinder is connected to the adjustment T-block by a coupling, and the telescopic end of the electric cylinder and the adjustment T-block are coaxially mounted.

[0008] Preferably, the connecting plate includes an integrally formed bottom plate, rib plate, and top plate, wherein the bottom plate is detachably connected to the upper mold, the top plate is connected to the direct-drive electric cylinder, and the rib plate is located between the bottom plate and the top plate.

[0009] Preferably, the top plate is provided with N through holes for the extension and retraction ends of the electric cylinder to pass through. The through holes are coaxially arranged with the adjustment T block. One side of the through hole is provided with bolt holes for connecting the direct-connect electric cylinder base, and there are no less than two bolt holes. The slot is located on the other side of the through hole.

[0010] Preferably, the length of the integrated bracket is no more than 1000mm, and the thickness of the base plate, rib plate and top plate is no less than 8mm.

[0011] Preferably, the direct-drive electric cylinder model is MLT20-SC01-D-ZC.

[0012] Compared with the prior art, this utility model provides an integrated adjustment device for lithium battery coating die heads, which has the following beneficial effects:

[0013] 1. Convenient installation and disassembly of electric cylinders improves the maintenance efficiency of adjustment T-blocks: The integrated bracket design significantly shortens the installation and disassembly time of N electric cylinders, improving the maintenance efficiency of adjustment T-blocks in coating equipment; during maintenance and cleaning of adjustment T-blocks, it is not necessary to remove and reinstall the individual brackets of each electric cylinder one by one. Simply unscrew the bolts between the integrated bracket and the upper die head, and the N electric cylinders can be moved away together using the integrated bracket; after cleaning the adjustment T-blocks, it is no longer necessary to reinstall the individual brackets of each electric cylinder one by one. Simply place the integrated bracket on the upper die head, and connect the base plate to the upper die head with bolts to complete the installation of N electric cylinders.

[0014] 2. High Reliability: The electric cylinder adopts a pin-type connection to reduce the exposure of power and communication harnesses, thereby reducing the risk of slurry corrosion. Both power and communication harnesses are encased in a junction box. When adjusting the T-block for maintenance, only the junction box needs to be moved along with the integrated bracket. The power and communication harnesses will not become tangled or disordered. The integrated bracket with the junction box encasing the power and communication harnesses ensures that they will not be corroded by the coating slurry, guaranteeing the stability of the electric cylinder and improving its overall aesthetics and reliability.

[0015] 3. High versatility: The size and specifications of the integrated bracket can be designed according to different numbers of adjustment T-blocks, enhancing the adaptability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the electric cylinder mounting structure in the prior art;

[0017] Figure 2 This is a front structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the rear structure of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the integrated bracket and the upper mold of this utility model;

[0020] Figure 5 This is a schematic diagram of the integrated support structure of this utility model;

[0021] Figure 6 This is a top view of the connecting plate of this utility model;

[0022] Figure 7 This is a schematic diagram of the junction box structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the direct-drive electric cylinder structure of this utility model;

[0024] Figure 9 This is a schematic diagram of the explosion of the direct-drive electric cylinder of this utility model;

[0025] Figure 10 This is a circuit schematic diagram related to this utility model;

[0026] Figure 11 This is a simulated force diagram of the integrated bracket of this utility model;

[0027] Figure 12 for Figure 11 Axonometric schematic diagram;

[0028] Explanation of reference numerals in the attached drawings: 1. Coating die head; 11. Lower die; 12. Upper die; 13. Coating port; 2. Adjusting T-block; 3. Coupling; 4. Direct-drive electric cylinder; 41. Electric cylinder telescopic end; 42. Pin connector; 5. Integrated bracket; 51. Connecting plate; 511. Base plate; 512. Rib plate; 513. Top plate; 52. Through hole; 53. Bolt hole; 54. Pin socket; 55. Junction box; 56. Communication interface; 57. Power interface; 58. Slot; 100. Traditional electric cylinder; 101. Wiring harness; 102. Junction box; 103. Independent bracket. Detailed Implementation

[0029] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:

[0030] To address the problems mentioned in the background art, this utility model provides an integrated adjustment device for lithium battery coating dies. For example... Figure 2The coating die head 1 shown includes a lower die 11 and an upper die 12, with a coating orifice 13 formed between the lower die 11 and the upper die 12. The size of the coating orifice 13 determines the coating quality; the size of the coating orifice 13 is usually adjusted by adjusting the upper die 12. N adjusting T blocks 2 pass through the upper die 12, and each adjusting T block 2 is responsible for adjusting the size of the coating orifice 13 in its corresponding area. This utility model's integrated electric adjustment device is mounted on the upper mold 12, including an integrated bracket 5 connected to the upper mold 12 and N direct-connection electric cylinders 4 mounted on the integrated bracket 5. The N direct-connection electric cylinders 4 are pin-type electric cylinders, each including a cylinder telescopic end 41 and a pin connector 42. The N direct-connection electric cylinders 4 are respectively connected to N adjustment T-blocks 2 that penetrate the upper mold 12. All N direct-connection electric cylinders 4 are connected to the upper mold 12 through the integrated bracket 5, and the cylinder telescopic end 41 of the direct-connection electric cylinder 4 is connected to the adjustment T-block 2 after penetrating the integrated bracket 5. The cylinder telescopic end 41 and the adjustment T-block 2 are connected by a coupling 3. The coupling 3 is existing technology and can transmit the displacement of the cylinder telescopic end 41 to the adjustment T-block 2. Its structure will not be described in detail here. The integrated bracket 5 includes a connecting plate 51, N slots 58 on the connecting plate 51, and a junction box 55 located on one side of the connecting plate 51. The junction box 55 is detachably connected to the connecting plate 51. The junction box 55 is provided with N pin sockets 54, and the junction box 55 gathers the wire harnesses of the N pin sockets 54. The junction box 55 outlet is provided with a communication interface 56 and a power interface 57. The pin connectors 42 can be inserted into the slots 58 and connected to the pin sockets 54. The N pin connectors 42 are connected to the pin sockets 54. The junction box 55 encloses the power harnesses and communication harnesses of the N direct-connected electric cylinders 4 inside. The power harnesses and communication harnesses are not exposed and will not be corroded by the coating slurry, thus ensuring the stability of the electric cylinders.

[0031] The connecting plate 51 includes a base plate 511, a top plate 513, and a rib plate 512. The base plate 511, top plate 513, and rib plate 512 are integrally formed. The base plate 511 is detachably connected to the upper mold 12 via bolts. The vertical rib plate 512 is located between the base plate 511 and the top plate 513, providing support. The top plate 513 is used to connect N direct-drive electric cylinders 4. Specifically, the top plate 513 has N through holes 52, N slots 58, and no fewer than 2N bolt holes 53. The through holes 52 are used for the extension / retraction end 41 of the electric cylinder to pass through. Bolt holes 53 are provided on one side of each through hole 52, and the bolt holes 53 are used to connect the base of the direct-drive electric cylinder 4, with no fewer than two bolt holes 53. Figure 8 The telescopic end 41 and pin connector 42 of the electric cylinder shown are both located at the bottom of the direct-connected electric cylinder 4 and pass through the base of the direct-connected electric cylinder 4, as shown. Figure 5 The slot 58 shown is located on the other side of the through hole 52. The slot 58 is used for the pin holder 54 to be inserted. The pin holder 54 passes through the slot 58 from bottom to top and connects to the pin connector 42.

[0032] To ensure the strength of the integrated bracket 5, its length is generally no more than 1000mm, and it is made of aluminum alloy. The thickness of the base plate 511, rib plate 512, and top plate 513 is no less than 8mm. The direct-drive electric cylinder 4 is model MLT20-SC01-D-ZC, and its exploded diagram is shown below. Figure 9 As shown, the direct-drive electric cylinder 4 includes an electric cylinder extension end 41, a pin connector 42, a drive motor 43, a gearbox 44, a ball screw 45, a magnetic scale 46, and a micro driver 47. First, the micro driver 47 receives linear positioning commands from the host system (PLC / IPC) via a serial communication interface and outputs the number of pulses required for linear motion. Then, the micro driver 47 outputs corresponding pulse commands according to the set positioning speed. After the command is completed, it compares the real-time linear position value read by the magnetic scale 46 with the target command position issued by the host system. If the difference exceeds 2µm, the micro driver 47 calculates the difference between the target command position and the real-time linear position value, converts the difference into a corresponding number of pulses for positioning correction, thereby achieving a single positioning motion closed-loop control of 2µm. The direct-drive electric cylinder 4 is connected to the integrated bracket 5 via its bottom electric cylinder base 49, which also has a groove for the pin connector 42 to be inserted. The gearbox 44 is equipped with a handwheel 48 on top, which serves as an adjustment knob when the micro actuator 47 is not in operation.

[0033] like Figure 3In the embodiment shown, the length of the integrated bracket 5 does not exceed 1000mm. In this embodiment, the length of the integrated bracket 5 is 342mm. The telescopic end 41 of the electric cylinder is coaxially mounted with the adjusting T block 2, that is, the through hole 52 is coaxially set with the adjusting T block 2. The distance between adjacent through holes 52 and the distance between adjacent adjusting T blocks 2 are both L. The distance between adjacent telescopic ends 41 of the electric cylinder is also L. Under normal circumstances, the distance between adjacent adjusting T blocks 2 is 25mm, that is, L is 25mm. The center distance between adjacent slots 58 is D, and the center distance between adjacent pin connectors 42 is also D, which is also 25mm. The axis of the telescopic ends 41 of the electric cylinders at the far left and far right ends is 21mm away from the left and right ends of the integrated bracket 5, respectively. There are 13 direct-connect electric cylinders 4. First, the 13 direct-connect electric cylinders 4 are installed on the top plate 513 of the integrated bracket 5. During installation, the telescopic ends 41 of the electric cylinders pass through the through holes 52, and then the bases of the direct-connect electric cylinders 4 are connected to the top plate 513 with bolts. The top plate 513 has two bolt holes 53 for the bolts to pass through, ensuring the stability of the connection of the direct-connect electric cylinders 4. A pin socket 54 is fitted into the slot 58, and the pin socket 54 is connected to the pin connector 42. The slot 58 and bolt holes 53 are located on both sides of the through hole 52, matching the positions of the electric cylinder extension end 41 and the pin connector 42 of the direct-connect electric cylinder 4. Thirteen pin sockets 54 are provided on the top of the junction box 55. The two ends of the junction box 55 are bolted to the two ends of the connecting plate 51, and the 13 pin sockets 54 are respectively fitted into the corresponding slots 58. The electric cylinder wiring harness is gathered inside the junction box 55 and then connected to the communication interface 56 and the power interface 57. The wiring principle of the junction box 55 is as follows: Figure 10As shown, the power lines of the 13 pin headers 54 converge to the power bus, which is connected to the power interface 57; the communication lines of the 13 pin headers 54 converge to the communication bus, which is connected to the communication interface 56. The power bus and communication bus are housed in the junction box 55, and all wiring harnesses are enclosed within the junction box 55 and not exposed. The telescopic end 41 of the electric cylinder passes through the top plate 513 and is connected to the top of the adjusting T-block 2 via the coupling 3. The base plate 511 of the connecting plate 51 is connected to the upper mold 12 by three sets of bolts arranged at intervals, each set of bolts consisting of two bolts. After using this utility model device, when maintaining and cleaning the adjusting T-block 2, it is only necessary to first loosen the coupling 3, then remove the three sets of bolts on the base plate 511, and lift the integrated bracket 5 together with the 13 direct-connected electric cylinders 4 for transfer. In contrast, the traditional method not only requires loosening the coupling 3 first, but also requires removing 26 bolts when the 13 electric cylinders use independent brackets, and also requires properly placing the 13 electric cylinders. During installation, each electric cylinder needs to be installed and tightened with 26 bolts, making the whole process quite cumbersome. However, when installing the adjusting T-block 2 after maintenance and cleaning, this utility model allows the integrated bracket 5 together with the 13 direct-connected electric cylinders 4 to be transferred to the upper mold 12. The coupling 3 connects the electric cylinder telescopic end 41 and the adjusting T-block 2, and finally the base plate 511 is connected to the upper mold 12 with three sets of bolts. It can be seen that the integrated bracket design of this utility model significantly shortens the installation and disassembly time of 13 electric cylinders and improves the maintenance efficiency of the adjustment T-block of the coating equipment; moreover, the direct-connected electric cylinder 4, together with the integrated bracket 5, ensures that the wire harness is not exposed, avoiding the situation where the electric cylinder cannot work due to the wire harness being corroded by the slurry.

[0034] like Figure 11 , Figure 12 The diagram shown is a simulation force diagram of the integrated bracket 5 of this utility model. The thickness of the base plate 511, rib plate 512, and top plate 513 is 8mm, and the length of the integrated bracket 5 is 342mm. The integrated bracket 5 is subjected to an upward force F at the connection point with the adjusting T-block. This force F is also the main reason for the deformation of the integrated bracket 5. Under normal circumstances, the pressure from the mold cavity is 0.6MPa. The cross-sectional area of ​​the bottom of the adjusting T-block is a commonly used 25mm*10mm. The upward pressure transmitted by the adjusting T-block is 0.6×25×10=150N. In this simulation verification, 150N is expanded to the limit value of 200N, that is, F=200N is selected. Figure 11 , Figure 12 The simulation results are from Figure 11 , Figure 12 It can be seen that, taking the contact point between the integrated bracket 5 and the upper mold as a reference surface, even under the extreme value of 200N, the maximum deformation of the integrated bracket 5 is 8.319×10. -3 mm, or 8.319 μm, is the micrometer-level deformation requirement for fully composite processing. Therefore, the integrated support 5 of this invention provides sufficient support.

[0035] This invention integrates traditional independent brackets into a single bracket 5, which supports the installation of multiple direct-connection electric cylinders 4, reducing the number of components. The pin-type direct-connection electric cylinder 4 serves as the drive unit, replacing traditional wiring harnesses with a pin-type connection, simplifying electrical connections and preventing corrosion from coating slurry. The single bracket 5 is fixed to the coating die 1. The direct-connection electric cylinder 4 receives control signals via a pin-type connection, driving the adjusting T-block 2 to move up and down to adjust the size of the coating nozzle 13. The entire device, through its integrated design, allows for quick installation and removal of the direct-connection electric cylinder 4 during maintenance of the adjusting T-block 2, eliminating the exposure of wire harnesses to the production environment and avoiding the corrosion of wire harnesses by coating slurry in existing technologies, thus ensuring the stability of the electric cylinders.

[0036] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An integrated adjustment device for a lithium battery coating die, disposed on a coating die (1), the coating die (1) comprising a lower die (11) and an upper die (12); the upper die (12) having N adjusting T-blocks (2) disposed through it; characterized in that: The system includes an integrated bracket (5) connected to the upper mold (12) and N direct-connection electric cylinders (4) mounted on the integrated bracket (5). The N direct-connection electric cylinders (4) are pin-type electric cylinders, each including a cylinder telescopic end (41) and a pin connector (42). All N direct-connection electric cylinders (4) are connected to the upper mold (12) via the integrated bracket (5), and the cylinder telescopic end (41) of each direct-connection electric cylinder (4) passes through the integrated bracket (5) and connects to the adjusting T-block (2). The integrated bracket (5) includes a connecting plate (51) and N direct-connection electric cylinders (4) mounted on the connecting plate (51). The slot (58) and the junction box (55) located on one side of the connecting plate (51) are provided with N pin sockets (54) on the top of the junction box (55). The pin sockets (54) are inserted into the slot (58) from below and upward. The junction box (55) has a communication interface (56) and a power interface (57) at its outlet. The pin connector (42) can be inserted into the slot (58) and connected to the pin socket (54). The electric cylinder telescopic end (41) and the adjusting T block (2) are connected by a coupling (3). The electric cylinder telescopic end (41) and the adjusting T block (2) are coaxially installed.

2. The integrated adjustment device for lithium battery coating die head according to claim 1, characterized in that: The connecting plate (51) includes an integrally formed base plate (511), rib plate (512) and top plate (513), wherein the base plate (511) is detachably connected to the upper mold (12), the top plate (513) is connected to the direct-drive electric cylinder (4), and the rib plate (512) is located between the base plate (511) and the top plate (513).

3. The integrated adjustment device for lithium battery coating die head according to claim 2, characterized in that: The top plate (513) is provided with N through holes (52) for the electric cylinder telescopic end (41) to pass through. The through holes (52) are coaxially arranged with the adjusting T block (2). One side of the through hole (52) is provided with bolt holes (53) for connecting the base of the direct electric cylinder (4), and there are no less than two bolt holes (53). The slot (58) is located on the other side of the through hole (52).

4. The integrated adjustment device for lithium battery coating die head according to claim 2, characterized in that: The length of the integrated bracket (5) is no more than 1000mm, and the thickness of the bottom plate (511), rib plate (512) and top plate (513) is no less than 8mm.

5. The integrated adjustment device for lithium battery coating die head according to claim 3 or 4, characterized in that: The model of the direct-drive electric cylinder (4) is MLT20-SC01-D-ZC.

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