A battery grid punching screen die

Abstract

The application provides a battery grid punching screen die, and belongs to the technical field of battery production. The die comprises a base, a top surface of which is horizontally arranged; a lower die plate, which is horizontally arranged above the top surface of the base, and a plurality of rows of punching holes arranged in a rectangular array are vertically arranged on the top surface of the lower die plate; a sliding groove, which is arranged on the top surface of the base and below the lower die plate, and a sliding block is slidingly arranged in the sliding groove; a lifting rod, which is horizontally arranged below the lower die plate, and a first guide rod is vertically arranged at the bottom of the lifting rod and slidingly arranged in the sliding block; at least one row of inserts, which are arranged on the top of the lifting rod and along the length direction of the lifting rod; an upper die plate, which is horizontally arranged above the lower die plate and is movably arranged in the vertical direction, and a plurality of rows of punches arranged in a rectangular array and corresponding to the punching holes are arranged on the bottom of the upper die plate, and one row of punches on the outer side is detachably arranged; a driving part, which is arranged on the base on both sides of the sliding groove; and a fixing mechanism, which is arranged in the sliding groove. The die can be used for the production of different types of grids and effectively reduces the cost of the die.

Description

Technical Field

[0001] This application belongs to the field of storage battery manufacturing technology, and in particular relates to a storage battery grid punching die. Background Technology

[0002] The grid is a major component of lead-acid batteries, used to support the active material and to conduct, collect, and distribute current evenly. The production process of the grid requires a continuous casting and rolling mill to produce lead strips that meet the thickness requirements. These lead strips are then passed through a screen-forming device to form a mesh belt, which is then split to form the grid.

[0003] Each type of grating has a set of punching molds. When producing different types of gratings, it is necessary to change the molds on the punching equipment to the molds corresponding to the grating models. This results in a large number of molds and a high mold cost. Utility Model Content

[0004] To address the shortcomings of the prior art, this application provides a battery grid punching die, which can be used for the production of different grid models, effectively reducing die costs.

[0005] To achieve the above objectives, the present invention employs the following technology:

[0006] A battery plate grid punching die, comprising:

[0007] The base has its top surface set horizontally;

[0008] The lower template is parallel and fixedly mounted above the top surface of the base. The top surface of the lower template has multiple rows and columns of mold holes arranged in a rectangular array.

[0009] A sliding groove is formed on the top surface of the base and located below the lower template and facing the width direction of the lower template. A slider is slidably fitted inside the sliding groove.

[0010] The lifting rod is positioned parallel to the bottom of the lower template and faces the length direction of the lower template. A first guide rod is vertically provided at the bottom of the lifting rod, and the first guide rod slides through the top surface of the slider. The lifting rod is moved and set in the vertical direction.

[0011] At least one row of inserts is provided at the top of the lifting rod and arranged along the length of the lifting rod to fill at least one row of mold holes;

[0012] The upper template is set parallel to the lower template and moves vertically. The bottom of the upper template has punches arranged in a rectangular array with multiple rows and columns, each corresponding to a mold hole. Each punch is used to enter the corresponding mold hole. The outer row of punches can be detached.

[0013] The drive unit, located on the base on both sides of the slide, is used to drive the lifting rod;

[0014] The fixing mechanism, located inside the slide groove, is used to fix the slider.

[0015] Furthermore, both ends of the lifting rod are connected to a first wedge block arranged in a triangle. The drive unit includes two linear mechanisms mounted on the base and located on both sides of the slide groove. The movable ends of the two linear mechanisms face the length direction of the lower template and are arranged opposite each other. The movable ends of the linear mechanisms are connected to a second wedge block arranged in a triangle for lifting the first wedge block.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. By using a detachable punch and the fit between the insert and the die hole, multiple types of grids can be produced using a single die, effectively reducing die costs; at the same time, the die adjustment time is shorter than the time required to replace the entire die, effectively improving production efficiency.

[0018] 2. The lifting rod uses a first wedge and a second wedge to cooperate and is driven by a linear mechanism to rise. This structure has low manufacturing cost and is compact, making it suitable for compact mold structures. At the same time, the first and second wedges have high stability, allowing the inserts to accurately enter the corresponding mold holes and improving the reliability of the mold. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the mold in the embodiment of this application.

[0020] Figure 2 This is a front view of the mold in the embodiment of this application.

[0021] Figure 3 This is a diagram showing the positional relationship between the insert and the die hole when the pin and the die hole are engaged in an embodiment of this application.

[0022] Figure 4 This is a diagram showing the positional relationship between the insert and the die hole when the second spring is in its natural state according to an embodiment of this application.

[0023] Figure 5 for Figure 2 A magnified view of part A in the middle.

[0024] Reference numerals: 1-Base, 11-Guide post, 12-Third guide rod, 13-Pressure plate, 14-Connecting post, 2-Lower template, 21-Mold hole, 22-Support plate, 3-Slide groove, 31-Slider, 32-Mounting plate, 33-Second guide rod, 34-Circular plate, 35-Second spring, 36-Guide strip, 37-Guide groove, 38-Support plate, 39-Lock hole, 4-Lifting rod, 41-First guide rod, 42-First wedge, 43-First spring, 5-Insert, 6-Upper template, 61-Punch, 7-Drive unit, 71-Linear mechanism, 72-Second wedge, 8-Fixing mechanism, 81-Pin hole, 82-Pin. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0026] This application provides a battery grid punching mold, and uses the production of 5×9 grids and 4×9 grids as examples. 5×9 means that the punching equipment punches five rows of holes on the lead strip, and the number of holes in each row is nine.

[0027] like Figures 1-5 As shown, the punching die includes: a base 1, a lower template 2, a slide 3, a lifting rod 4, a row of inserts 5, an upper template 6, a drive unit 7, and a fixing mechanism 8. In this embodiment, the base 1 is rectangular, with its bottom surface mounted on the mounting frame of the punching equipment, and its top surface is horizontal. The lower template 2 is mounted parallel to and fixed above the top surface of the base 1 by support plates 22 on both sides. The top surface of the lower template 2 has five rows of die holes 21 arranged vertically downwards. Each row of die holes 21 is arranged in an array along the width direction of the lower template 2, with nine die holes 21 in each row, and they are arranged in an array along the length direction of the lower template 2.

[0028] like Figures 1-2 As shown, the slide groove 3 is opened on the top surface of the base 1 and located below the lower template 2 and facing the width direction of the lower template 2. A slider 31 is slidably engaged in the slide groove 3 along the width direction of the lower template 2. Specifically, guide strips 36 arranged along the width direction of the lower template 2 are provided on both sides of the slide groove 3. Guide grooves 37 are opened on both sides of the slider 31 and are slidably engaged with the corresponding guide strips 36 respectively.

[0029] like Figures 1-2 As shown, the lifting rod 4 is parallel to the lower template 2 and arranged along the length of the lower template 2. A first guide rod 41 is vertically provided at the bottom of the lifting rod 4, and the first guide rod 41 slides through the top surface of the slider 31. The lifting rod 4 is moved vertically. There are nine inserts 5, which are provided at the top of the lifting rod 4 and arranged along the length of the lifting rod 4.

[0030] like Figures 2-4 As shown, four guide posts 11 are vertically arranged at the four corners of the top surface of the base 1. A third guide rod 12 is slidably inserted through the top of each guide post 11. A pressure plate 13 is connected to the upper end of the third guide rod 12. The pressure plate 13 is parallel to the lower template 2. The upper template 6 is arranged parallel to the lower template 13 and connected to the pressure plate 13 through a connecting post 14. The bottom of the upper template 6 is provided with punches 61 in rows with the same number of holes 21 as the number of holes 21 in each row. Each punch 61 is used to enter the corresponding hole 21. The outer row of punches 61 is detachable. Specifically, a detachable connecting block can be set on the upper template 6, located above the punches 61, and fixed by bolts or pins. When disassembling and assembling the punches 61, only the connecting block and the punches 61 need to be combined. Alternatively, a threaded knob structure can be set so that the punches 61 are connected to the upper template 6 by threads, and disassembly and assembly can be completed by rotation.

[0031] like Figures 2-5 As shown, both ends of the lifting rod 4 are connected to a first wedge 42 arranged in a triangle. Specifically, the inclined surfaces of the two first wedges 42 face each other towards the lower ends of the lifting rod 4. The drive unit 7 includes two linear mechanisms 71 mounted on the base 1 and located on both sides of the slide groove 3. The movable ends of the two linear mechanisms 71 face the length direction of the lower template 2 and are arranged opposite each other. The movable ends of the two linear mechanisms 71 pass through the corresponding support plate 22 and are connected to a second wedge 72 arranged in a triangle. The inclined surfaces of the two second wedges 72 face each other towards the upper ends of the lifting rod 4, that is, the inclined surfaces of the two second wedges 72 are parallel to the inclined surfaces of the corresponding first wedges 42.

[0032] like Figures 3-4 As shown, a support plate 38 parallel to the bottom surface of the slide groove 3 is provided at the bottom of one end of the slider 31. A locking hole 39 is vertically opened on the support plate 38. The fixing mechanism 8 includes a pin hole 81 vertically opened on the bottom surface of the slide groove 3 and a pin 82 for axially inserting into the locking hole 39 and the pin hole 81.

[0033] In this embodiment, the slider 31 is pulled out, causing the lifting rod 4 and insert 5 to move below the die hole 21, ready for the production of a 5×9 grid. A hydraulic cylinder is generally installed above the pressure plate 13 to meet the pressure required for punching. The movable end of the hydraulic cylinder is connected to the pressure plate 13 to drive the pressure plate 13 to rise and fall vertically. Simultaneously, the number and arrangement of the punches 61 correspond one-to-one with the die hole 21 in the vertical direction. The lead strip produced by the continuous casting and rolling mill is wound by a coiler and then pulled to a feeder. The feeder uses... The lead strip is fed to the lower template 2 by a step feeding method. The hydraulic cylinder drives the pressure plate 13 to descend. The punch 61 is precisely aligned with the corresponding die hole 21 and cooperates with each other to form a mesh punching structure on the lead strip. The punches are arranged in a 5×9 layout. The lead material cut off falls out of the die hole 21 for waste removal. The hydraulic cylinder drives the pressure plate 13 to rise. Each time the feeder feeds in one step, the punch 61 punches the lead strip once, thereby forming the lead strip into a mesh structure. The mesh structure is then split to form a grid.

[0034] When producing 4×9 grid panels, the usual practice is to stop the production line and replace the entire set of molds for the wire mesh punching equipment. Multiple sets of molds not only increase mold-making costs, but also require a significant downtime for mold replacement, which is detrimental to improving production efficiency. For example... Figures 2-5 As shown, in this embodiment, when producing a 4×9 grid, it is only necessary to remove one row of punches 61 on the outer side of the upper template 6, push the slider 31 under the mold hole 21, and make the locking hole 39 vertically coincide with the pin hole 81. Then, insert the pin 82 to fix the slider 31. At this time, each insert 5 corresponds one-to-one with the outer row of mold holes 21 in the vertical direction. At the same time, the two sides of the first wedge 42 are respectively coplanar with the two sides of the second wedge 72. The linear mechanism 71 drives the two second wedges 72 to move closer to each other synchronously. The inclined surface moves against the inclined surface of the first wedge 42, lifting the first wedge 42, thereby raising the lifting rod 4. The insert 5 enters the corresponding die hole 21. When the lifting rod 4 abuts against the lower die 2, the top surface of the insert 5 is coplanar with the top surface of the lower die 2. At this time, the linear mechanism 71 stops driving, and the second wedge 72 remains stationary. The pressure plate 13 descends, and the punch 61 cooperates with the corresponding die hole 21 to complete the punching, forming a mesh punching structure on the lead strip. Each punch is arranged in a 4×9 layout, thereby completing the production of the 4×9 grid.

[0035] In summary, the detachable design of the punch 61 and the cooperation between the insert 5 and the die hole 21 enable the production of multiple types of grids using a single die, effectively reducing die costs. Furthermore, the die adjustment time is shorter than that of replacing the entire die, significantly improving production efficiency. Using the insert 5 to fill the die hole 21 ensures uniform stress on the lead strip during punching, preventing stretching deformation and accelerated die wear. In addition, the integrated design of each insert 5 allows for one-time filling, resulting in high filling efficiency and further enhancing production efficiency.

[0036] The lifting rod 4 is raised by the cooperation of the first wedge 42 and the second wedge 72 and driven by the linear mechanism 71. This structure has low manufacturing cost and compact structure, and is suitable for the compact structure of the mold itself. At the same time, the cooperation between the first wedge 42 and the second wedge 72 has high stability, which allows the insert 5 to accurately enter the corresponding mold hole 21, thereby improving the reliability of the mold.

[0037] Specifically, such as Figures 2-5 As shown, the top surface of the slider 31 is coplanar with the top surface of the base 1. There are two first guide rods 41, which are located at both ends of the lifting rod 4. A first spring 43 is sleeved on the first guide rod 41. The first spring 43 is connected between the lifting rod 4 and the slider 31. When it is in its natural state, the insert 5 is located below the lower template 2. Under the action of the first spring 43, the insert 5 can be automatically removed from the mold hole 21, which improves the convenience of the mold.

[0038] Specifically, such as Figure 3 and Figure 4 As shown, the bottom of the slide 3 is provided with a vertical mounting plate 32 facing the length direction of the lower template 2. Two second guide rods 33 parallel to the lower template 2 and facing the width direction of the lower template 2 are connected to one side of the slider 31. The second guide rods 33 pass through the mounting plate 32 and are connected to a circular plate 34. A second spring 35 is sleeved on the second guide rods 33. When the second spring 35 is in its natural state, the insert 5 is located below the outside of the die hole 21, which can effectively prevent the slider 31 from moving below the die hole 21 due to vibration during the punching process, thereby blocking the punched lead sheet falling from the die hole 21, and further improving the reliability of the mold.

[0039] Preferably, the linear mechanism 71 can be a hydraulic cylinder, which has high stability and synchronization, can improve the stability of the lifting rod 4 and ensure the precise fit between the insert 5 and the die hole 21.

[0040] Limited, such as Figure 3 and Figure 4 As shown, the bottom surface of the groove 3 directly below the die hole 21 can be set as a downward sloping surface to facilitate the discharge of the punched lead sheet.

[0041] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A battery plate grid punching die, characterized in that, include: The base (1) has its top surface set horizontally; The lower template (2) is mounted parallel to and fixed above the top surface of the base (1). The top surface of the lower template (2) has multiple rows and columns of mold holes (21) arranged in a rectangular array. The groove (3) is opened on the top surface of the base (1) and located below the lower template (2) and facing the width direction of the lower template (2). A slider (31) is slidably fitted inside the groove (3). The lifting rod (4) is parallel to the lower template (2) and faces the length direction of the lower template (2). The bottom of the lifting rod (4) is vertically provided with a first guide rod (41). The first guide rod (41) slides through the top surface of the slider (31). The lifting rod (4) is moved in the vertical direction. At least one row of inserts (5) are provided on the top of the lifting rod (4) and arranged along the length of the lifting rod (4) to fill at least one row of mold holes (21). The upper template (6) is set parallel above the lower template (2) and moves vertically. The bottom of the upper template (6) is provided with punches (61) arranged in a rectangular array with multiple rows and columns, corresponding one-to-one with the mold holes (21). Each punch (61) is used to enter the corresponding mold hole (21). The row of punches (61) on the outside can be detached. The drive unit (7) is located on the base (1) on both sides of the slide (3) and is used to drive the lifting rod (4). The fixing mechanism (8) is located in the groove (3) and is used to fix the slider (31).

2. The battery grid punching die according to claim 1, characterized in that, Both ends of the lifting rod (4) are connected to a first wedge (42) arranged in a triangle. The drive unit (7) includes two linear mechanisms (71) on the base (1) and located on both sides of the slide (3). The movable ends of the two linear mechanisms (71) face the length direction of the lower template (2) and are arranged opposite to each other. The movable ends of the linear mechanisms (71) are connected to a second wedge (72) arranged in a triangle, which is used to lift the first wedge (42).

3. The battery plate grid punching die according to claim 2, characterized in that, The top surface of the slider (31) is coplanar with the top surface of the base (1). A first spring (43) is sleeved on the first guide rod (41). The first spring (43) is connected between the lifting rod (4) and the slider (31). When it is in its natural state, the insert (5) is located below the lower template (2).

4. The battery plate grid punching die according to claim 1, characterized in that, The bottom of the slide (3) is provided with a vertical mounting plate (32) facing the length direction of the lower template (2). A second guide rod (33) parallel to the lower template (2) and facing the width direction of the lower template (2) is connected to one side of the slider (31). The second guide rod (33) passes through the mounting plate (32) and is connected to a circular plate (34). A second spring (35) is sleeved on the second guide rod (33).

5. A battery plate grid punching die according to claim 4, characterized in that, The bottom surface of the groove (3) directly below the mold hole (21) is a downward sloping surface.

Images