Punching device for lithium iron phosphate positive electrode detection film

Abstract

The utility model provides a punching device for a lithium iron phosphate positive electrode detection film, which relates to the technical field of punching devices and comprises an equipment table, an equipment plate is fixedly connected onto the equipment table, an electric cylinder is fixedly connected onto the equipment plate, a mounting block is fixedly connected onto a piston rod of the electric cylinder, and the mounting block is fixedly connected onto the piston rod of the electric cylinder. An upper die is detachably connected to the installation block, a lower die is detachably connected to the equipment table, a groove is formed in the lower die, a limiting structure is arranged on the installation block and mainly composed of two L-shaped columns, the two L-shaped columns are arranged on the two sides of the installation block respectively, sliding grooves are formed in the L-shaped columns, and the sliding grooves are communicated with the groove. The punching device for the lithium iron phosphate positive electrode detection film solves the problems that due to the fact that an existing punching device for the lithium iron phosphate positive electrode detection film does not limit the positive electrode detection film, lateral deviation of the positive electrode detection film is easily caused in the punching process, and the product quality is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, in particular to a punching device for a lithium iron phosphate positive electrode detection film. Background Art

[0002] Lithium iron phosphate is a lithium-ion battery electrode material with the chemical formula LiFePO4 (LFP for short). It is mainly used in various lithium-ion batteries. During the processing of lithium iron phosphate, the positive electrode detection membrane needs to be punched for subsequent processing.

[0003] When using the current punching and cutting device for lithium iron phosphate positive electrode detection membrane, the staff often finds that the current punching and cutting device for lithium iron phosphate positive electrode detection membrane usually directly places the positive electrode detection membrane on the lower mold, and drives the upper mold down by the cylinder to punch it, without limiting the positive electrode detection membrane, which can easily cause the positive electrode detection membrane to deviate to the side, thereby reducing product quality. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a punching device for a lithium iron phosphate positive electrode detection membrane.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a punching device for lithium iron phosphate positive electrode detection membrane, comprising an equipment table, a equipment plate fixedly connected to the equipment table, an electric cylinder fixedly connected to the equipment plate, a mounting block fixedly connected to the piston rod of the electric cylinder, an upper mold detachably connected to the mounting block, a lower mold detachably connected to the equipment table, a groove provided on the lower mold, a limiting structure provided on the mounting block, the limiting structure mainly consisting of two L-shaped columns, the two L-shaped columns are respectively arranged on both sides of the mounting block, a sliding groove is provided on the L-shaped column, a sliding rod is slidably connected to the sliding groove, and a limiting block is fixedly connected to the sliding rod.

[0006] The effect achieved by the above components is: the positive electrode detection film is placed on the lower mold, the electric cylinder is started, the piston rod of the electric cylinder drives the upper mold to descend, and the upper mold is stuck in the groove to punch the positive electrode detection membrane into a specified shape. During the descending process of the mounting block, the two sliding bars will be driven down, and the position of the limit block is lower than the upper mold, so the two limit blocks will first press the positive electrode detection membrane, making the stamping process more stable, thereby avoiding the current lithium iron phosphate positive electrode detection membrane punching device without limiting the positive electrode detection membrane, which is easy to cause the positive electrode detection membrane to deviate sideways during punching, thereby reducing product quality.

[0007] Preferably, a first spring is fixedly connected to the inner wall of the slide groove, and one end of the first spring is fixedly connected to the slide rod.

[0008] The effect achieved by the above components is: when the limit block presses the positive electrode detection membrane, the upper mold continues to descend, causing the slide rod to slide upward to squeeze the first spring. The rebound force of the first spring acts on the slide rod to enhance the limiting effect on the positive electrode detection membrane.

[0009] Preferably, an adjustment groove is provided on the mounting block, and the adjustment groove is slidably connected to the two L-shaped columns.

[0010] The effect achieved by the above components is that the position of the limit block can be adjusted by sliding the two L-shaped columns according to the different sizes of the lower mold, thereby improving the adaptability of the device.

[0011] Preferably, a bidirectional screw is provided in the adjustment groove, the bidirectional screw is threadedly connected to the two L-shaped columns, and the two sections of threads on the bidirectional screw are in opposite directions.

[0012] The effect achieved by the above components is: since the two L-shaped columns slide in the adjustment groove, rotating the bidirectional screw can drive the two L-shaped columns to slide, and since the threads at both ends of the bidirectional screw are in opposite directions, rotating the bidirectional screw can drive the two L-shaped columns to move closer to or away from each other, making the operation more convenient.

[0013] Preferably, a first bevel gear is fixedly connected to the bidirectional screw, and a second bevel gear is meshingly connected to the first bevel gear.

[0014] The effect achieved by the above components is: by rotating the second bevel gear, the second bevel gear can drive the first bevel gear to rotate, and then drive the bidirectional screw to rotate.

[0015] Preferably, a motor is fixedly connected to the mounting block, and an output shaft of the motor is fixedly connected to the second bevel gear.

[0016] The effects achieved by the above components are: when the motor is started, the output shaft of the motor drives the second bevel gear to rotate, which can further improve the convenience of operation.

[0017] Preferably, a material discharge structure is provided on the groove, and the material discharge structure is mainly composed of four telescopic rods, the four telescopic rods are fixedly connected to the inner wall of the groove, one ends of the four telescopic rods are commonly fixedly connected to a top plate, a second spring is sleeved on the telescopic rod, one end of the second spring is fixedly connected to the inner wall of the groove, and the other end of the second spring is fixedly connected to the top plate.

[0018] The effect achieved by the above components is: when the upper mold descends to punch the positive electrode detection membrane, it will squeeze the top plate to slide downward. At this time, the second spring is in a contracted state. After the punching is completed, the upper mold rises, and the punched positive electrode detection membrane remains on the top plate. At this time, the top plate will slide upward under the action of the rebound force of the second spring, thereby driving the positive electrode detection membrane to leave the groove, making it easier to unload the material.

[0019] Preferably, a fixed plate is fixedly connected to the equipment platform, a first hydraulic cylinder is fixedly connected to the fixed plate, a push plate is fixedly connected to the piston rod of the first hydraulic cylinder, a second hydraulic cylinder is fixedly connected to the equipment plate, the piston rod of the second hydraulic cylinder is fixedly connected to the mounting block, and a connecting pipe is fixedly connected to both the first hydraulic cylinder and the second hydraulic cylinder.

[0020] The effect achieved by the above components is: the rising of the mounting block will push the piston rod of the second hydraulic cylinder to be squeezed inward, and the hydraulic oil in the second hydraulic cylinder will be passed to the first hydraulic cylinder through the connecting pipe, pushing the piston rod of the first hydraulic cylinder out, and then pushing the push plate forward, pushing the stamped positive electrode detection membrane away from the lower mold; when the mounting block descends, it drives the piston rod of the second hydraulic cylinder to be pulled out, and the hydraulic oil in the first hydraulic cylinder is sucked into the second hydraulic cylinder, so that the push plate is retracted and leaves the top of the lower mold, and so on and so forth, further improving the convenience of material unloading.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are that, in the utility model, by setting a limit structure, the two slide bars will be driven to descend during the process of the installation block descending, and the position of the limit block is lower than the upper mold, so the two limit blocks will first press the positive electrode detection membrane, making the stamping process more stable, and when the limit block presses the positive electrode detection membrane, the upper mold continues to descend, which will cause the slide bar to slide upward to squeeze the first spring, and the rebound elastic force of the first spring acts on the slide bar to enhance the limiting effect on the positive electrode detection membrane, and the two L-shaped columns can be slid according to the size of the different lower molds to adjust the position of the limit block, thereby improving the adaptability of the device. The column slides in the adjustment groove within a limited position, so rotating the bidirectional screw can drive the two L-shaped columns to slide, and because the threads at both ends of the bidirectional screw are in opposite directions, rotating the bidirectional screw can drive the two L-shaped columns to move closer to or away from each other, making the operation more convenient. By rotating the second bevel gear, the second bevel gear can drive the first bevel gear to rotate, and then drive the bidirectional screw to rotate. The motor is started, and the output shaft of the motor drives the second bevel gear to rotate, which can further improve the convenience of operation, thereby avoiding the situation that the current punching device for lithium iron phosphate positive electrode detection membrane does not limit the positive electrode detection membrane, which is easy to cause lateral deviation of the positive electrode detection membrane during punching, thereby reducing product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A three-dimensional structural schematic diagram of a punching device for a lithium iron phosphate positive electrode detection membrane is provided for the utility model;

[0023] Figure 2 This is a partial schematic diagram of a limiting structure of a punching device for a lithium iron phosphate positive electrode detection membrane proposed in the utility model;

[0024] Figure 3 This is a partial schematic diagram of a blanking structure of a punching device for a lithium iron phosphate positive electrode detection membrane proposed in the utility model;

[0025] Figure 4 The utility model provides another partial schematic diagram of the blanking structure of a punching device for a lithium iron phosphate positive electrode detection membrane.

[0026] Legend: 1. Equipment table; 2. Equipment plate; 3. Electric cylinder; 4. Mounting block; 5. Upper mold; 6. Lower mold; 7. Limiting structure; 71. L-shaped column; 72. Slide groove; 73. Slide rod; 74. Limiting block; 75. First spring; 76. Adjusting groove; 77. Bidirectional screw; 78. First bevel gear; 79. Second bevel gear; 710. Motor; 8. Unloading structure; 81. Telescopic rod; 82. Second spring; 83. Top plate; 84. Fixed plate; 85. First hydraulic cylinder; 86. Push plate; 87. Second hydraulic cylinder; 88. Connecting pipe; 9. Groove. DETAILED DESCRIPTION

[0027] Embodiment 1, as Figure 1 As shown, a punching device for lithium iron phosphate positive electrode detection membrane includes an equipment table 1, an equipment plate 2 is fixedly connected to the equipment table 1, an electric cylinder 3 is fixedly connected to the equipment plate 2, a mounting block 4 is fixedly connected to the piston rod of the electric cylinder 3, an upper mold 5 is detachably connected to the mounting block 4, a lower mold 6 is detachably connected to the equipment table 1, and a groove 9 is formed on the lower mold 6.

[0028] Reference Figure 1 and Figure 2, a limiting structure 7 is provided on the mounting block 4, and the limiting structure 7 is mainly composed of two L-shaped columns 71, and the two L-shaped columns 71 are respectively arranged on both sides of the mounting block 4, and a slide groove 72 is provided on the L-shaped column 71, and a slide rod 73 is slidably connected to the slide groove 72, and a limiting block 74 is fixedly connected to the slide rod 73. The positive electrode detection film is placed on the lower mold 6, and the electric cylinder 3 is started. The piston rod of the electric cylinder 3 drives the upper mold 5 to descend, and the upper mold 5 is stuck in the groove 9 to punch the positive electrode detection film into a specified shape. During the descent of the mounting block 4, the two slide rods 73 will be driven to descend, and the position of the limiting block 74 is lower than the upper mold 5, so the two The first spring 75 is fixedly connected to the inner wall of the slide groove 72, and one end of the first spring 75 is fixedly connected to the slide bar 73. When the limit block 74 presses the positive electrode detection film, the upper mold 5 continues to descend, which will cause the slide bar 73 to slide upward and squeeze the first spring 75. The rebound elastic force of the first spring 75 acts on the slide bar 73 to strengthen the positive electrode detection film. In order to measure the limiting effect of the film, an adjusting groove 76 is provided on the mounting block 4, and the adjusting groove 76 is slidably connected with the two L-shaped columns 71. The two L-shaped columns 71 can be slid according to the size of the lower mold 6 to adjust the position of the limiting block 74, thereby improving the adaptability of the device. A bidirectional screw 77 is provided in the adjusting groove 76, and the bidirectional screw 77 is threadedly connected with the two L-shaped columns 71. The two sections of the thread on the bidirectional screw 77 are in opposite directions. Since the two L-shaped columns 71 are limited and slide in the adjusting groove 76, rotating the bidirectional screw 77 can drive the two L-shaped columns 71 to slide. Since the threads at both ends of the bidirectional screw 77 are in opposite directions Therefore, rotating the bidirectional screw 77 can drive the two L-shaped columns 71 to move closer to or away from each other, making the operation more convenient. The bidirectional screw 77 is fixedly connected with a first bevel gear 78, and the first bevel gear 78 is meshed with a second bevel gear 79. By rotating the second bevel gear 79, the second bevel gear 79 can drive the first bevel gear 78 to rotate, thereby driving the bidirectional screw 77 to rotate. A motor 710 is fixedly connected to the mounting block 4, and the output shaft of the motor 710 is fixedly connected to the second bevel gear 79. When the motor 710 is started, the output shaft of the motor 710 drives the second bevel gear 79 to rotate, which can further improve the convenience of operation.

[0029] Reference Figure 3 and Figure 4, a material unloading structure 8 is provided on the groove 9, and the material unloading structure 8 is mainly composed of four telescopic rods 81, and the four telescopic rods 81 are fixedly connected to the inner wall of the groove 9, and one end of the four telescopic rods 81 is fixedly connected to a top plate 83. A second spring 82 is sleeved on the telescopic rod 81, and one end of the second spring 82 is fixedly connected to the inner wall of the groove 9, and the other end of the second spring 82 is fixedly connected to the top plate 83. When the upper mold 5 descends to punch the positive electrode detection film, it will squeeze the top plate 83 to slide downward. At this time, the second spring 82 is in a contracted state. After the punching is completed, the upper mold 5 rises, and the punched positive electrode detection film remains on the top plate 83. At this time, the top plate 83 will slide upward under the action of the rebound elastic force of the second spring 82, thereby driving the positive electrode detection film to leave the groove 9, which is convenient for unloading. A fixed plate 84 is fixedly connected to the equipment table 1, and a fixed connection is fixed on the fixed plate 84 A first hydraulic cylinder 85 is connected, a push plate 86 is fixedly connected to the piston rod of the first hydraulic cylinder 85, a second hydraulic cylinder 87 is fixedly connected to the equipment plate 2, the piston rod of the second hydraulic cylinder 87 is fixedly connected to the mounting block 4, and a connecting pipe 88 is fixedly connected to the first hydraulic cylinder 85 and the second hydraulic cylinder 87. The rising of the mounting block 4 will push the piston rod of the second hydraulic cylinder 87 inward, and the hydraulic oil in the second hydraulic cylinder 87 will be passed to the first hydraulic cylinder 85 through the connecting pipe 88, and the piston rod of the first hydraulic cylinder 85 will be pushed out, thereby pushing the push plate 86 forward, and pushing the stamped positive electrode detection membrane away from the lower mold 6. When the mounting block 4 descends, the piston rod of the second hydraulic cylinder 87 is pulled out, and the hydraulic oil in the first hydraulic cylinder 85 is sucked into the second hydraulic cylinder 87, so that the push plate 86 is retracted and leaves the top of the lower mold 6, and so on and so forth, further improving the convenience of material unloading.

[0030] Working principle: place the positive electrode detection film on the lower mold 6, start the electric cylinder 3, the piston rod of the electric cylinder 3 drives the upper mold 5 to descend, and the upper mold 5 is stuck in the groove 9 to punch the positive electrode detection film into a specified shape. During the descent of the mounting block 4, the two slide bars 73 will be driven to descend, and the position of the limit block 74 is lower than the upper mold 5, so the two limit blocks 74 will first press the positive electrode detection film, making the punching process more stable, thereby avoiding the current lithium iron phosphate positive electrode detection film punching device without limiting the positive electrode detection film, which is easy to cause the positive electrode detection film to deviate sideways during punching, resulting in reduced product quality. When the block 74 presses the positive electrode detection membrane, the upper mold 5 continues to descend, which will cause the slide bar 73 to slide upward to squeeze the first spring 75. The rebound elastic force of the first spring 75 acts on the slide bar 73 to enhance the limiting effect on the positive electrode detection membrane. The two L-shaped columns 71 can be slid according to the size of the lower mold 6 to adjust the position of the limit block 74, thereby improving the adaptability of the device. Since the two L-shaped columns 71 slide in the adjustment groove 76, the rotation of the bidirectional screw 77 can drive the two L-shaped columns 71 to slide. Since the threads at both ends of the bidirectional screw 77 are in opposite directions, the rotation of the bidirectional screw 77 can drive the two L-shaped columns 71 are close to or away from each other, making the operation more convenient, rotating the second bevel gear 79, the second bevel gear 79 can drive the first bevel gear 78 to rotate, and then drive the bidirectional screw 77 to rotate, start the motor 710, and the output shaft of the motor 710 drives the second bevel gear 79 to rotate, which can further improve the convenience of operation. When the upper mold 5 descends to punch the positive electrode detection membrane, it will squeeze the top plate 83 to slide downward. At this time, the second spring 82 is in a contracted state. After the punching is completed, the upper mold 5 rises, and the punched positive electrode detection membrane remains on the top plate 83. At this time, the top plate 83 will move upward under the action of the rebound elastic force of the second spring 82. The positive electrode detection membrane slides, thereby driving the positive electrode detection membrane to leave the groove 9, which is convenient for material unloading. The rising of the mounting block 4 will push the piston rod of the second hydraulic cylinder 87 to be squeezed inward, and the hydraulic oil in the second hydraulic cylinder 87 is passed to the first hydraulic cylinder 85 through the connecting pipe 88, and the piston rod of the first hydraulic cylinder 85 is pushed out, thereby pushing the push plate 86 forward, and pushing the stamped positive electrode detection membrane away from the lower mold 6. When the mounting block 4 descends, it drives the piston rod of the second hydraulic cylinder 87 to be pulled out, and the hydraulic oil in the first hydraulic cylinder 85 is sucked into the second hydraulic cylinder 87, so that the push plate 86 is retracted and leaves the top of the lower mold 6, and so on and so forth, further improving the convenience of material unloading.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A punching device for lithium iron phosphate positive electrode detection membrane, comprising an equipment table (1), characterized in that: The equipment platform (1) is fixedly connected to an equipment plate (2), the equipment plate (2) is fixedly connected to an electric cylinder (3), the piston rod of the electric cylinder (3) is fixedly connected to a mounting block (4), the mounting block (4) is detachably connected to an upper mold (5), the equipment platform (1) is detachably connected to a lower mold (6), the lower mold (6) is provided with a groove (9), a limiting structure (7) is provided on the mounting block (4), the limiting structure (7) is mainly composed of two L-shaped columns (71), the two L-shaped columns (71) are respectively arranged on two sides of the mounting block (4), a sliding groove (72) is provided on the L-shaped column (71), a sliding rod (73) is slidably connected to the sliding groove (72), and a limiting block (74) is fixedly connected to the sliding rod (73).

2. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 1, characterized in that: A first spring (75) is fixedly connected to the inner wall of the sliding groove (72), and one end of the first spring (75) is fixedly connected to the sliding rod (73).

3. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 2, characterized in that: The mounting block (4) is provided with an adjustment groove (76), and the adjustment groove (76) is slidably connected to the two L-shaped columns (71).

4. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 3, characterized in that: A bidirectional screw (77) is disposed in the adjustment groove (76), the bidirectional screw (77) being threadedly connected to the two L-shaped columns (71), and the two sections of thread on the bidirectional screw (77) are in opposite directions.

5. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 4, characterized in that: A first bevel gear (78) is fixedly connected to the bidirectional screw (77), and a second bevel gear (79) is meshingly connected to the first bevel gear (78).

6. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 5, characterized in that: A motor (710) is fixedly connected to the mounting block (4), and an output shaft of the motor (710) is fixedly connected to the second bevel gear (79).

7. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 6, characterized in that: A material discharge structure (8) is provided on the groove (9), and the material discharge structure (8) mainly consists of four telescopic rods (81), the four telescopic rods (81) are fixedly connected to the inner wall of the groove (9), one end of the four telescopic rods (81) is commonly fixedly connected to a top plate (83), and a second spring (82) is sleeved on the telescopic rod (81), one end of the second spring (82) is fixedly connected to the inner wall of the groove (9), and the other end of the second spring (82) is fixedly connected to the top plate (83).

8. The punching device for lithium iron phosphate positive electrode detection membrane according to claim 7, characterized in that: A fixing plate (84) is fixedly connected to the equipment platform (1), a first hydraulic cylinder (85) is fixedly connected to the fixing plate (84), a push plate (86) is fixedly connected to the piston rod of the first hydraulic cylinder (85), a second hydraulic cylinder (87) is fixedly connected to the equipment plate (2), a piston rod of the second hydraulic cylinder (87) is fixedly connected to the mounting block (4), and a connecting pipe (88) is fixedly connected to both the first hydraulic cylinder (85) and the second hydraulic cylinder (87).

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