High-speed puncher for needled steel belt of bag type battery

Abstract

The utility model relates to the field of battery manufacturing, and provides a high-speed perforating machine for a needled steel belt of a bag type battery. Comprising a rack, a driving piece fixedly connected to the left side of the bottom of the rack, a punching die fixedly connected to the upper end of the rack, a downward pressing mechanism located above the punching die, a drawing mechanism located in front of the punching die, a ratchet mechanism located on the right side of the drawing mechanism and a crank connecting rod mechanism located on the right side of the downward pressing mechanism. The collecting mechanism is located at the front end of the rack; and the limiting mechanism is located at the rear end of the rack. Compared with the traditional punching equipment, the punching speed is greatly improved, the size of the equipment is effectively reduced by adopting a compact mechanical layout, so that the machine is lighter and is convenient to deploy and move in a production environment, and the complexity of the equipment is reduced by simplifying a mechanical structure and reducing the number of parts; the device can adapt to steel belts of different specifications through simple adjustment, and the universality of the device in different production environments is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of battery manufacturing, and particularly relates to a high-speed perforating machine for a needle-punched steel strip of a pouch battery. Background Art

[0002] Pouch batteries, with their advantages of being thin, light, small in volume, high in mechanical strength, and stable in working voltage, have been widely used in the fields of electronic devices and new energy. Such batteries are made by filling positive and negative electrode materials on a porous nickel-plated steel strip, and then going through a series of technological processes to form electrode plates, and finally assembling them into batteries. The porous structure design of pouch batteries aims to improve the penetration speed of the electrolyte, thereby enhancing the charge and discharge performance and service life of the batteries.

[0003] The performance of pouch batteries depends to a large extent on the needle-punched steel strips used. The needle-punched steel strips form round holes through a special needle-punching process, and burrs are formed on one side of the holes. These burrs help to fix the active substances and the penetration of the electrolyte. The round-hole needle-punched steel strips with a high porosity can not only improve the charge and discharge efficiency of the batteries, but also help to extend the service life of the batteries.

[0004] Although the needle-punched steel strips are crucial for the performance of pouch batteries, the existing perforating equipment often has some limitations. These equipment are usually large in size and require a large number of components for assembly, resulting in a complex structure and difficult maintenance. In addition, the existing perforating equipment usually uses a punching machine to replace the perforating die for perforation. However, punching machines usually require a greater force to drive, so the punching machines have a slow speed, and only replacing the perforating die cannot meet the needs of large-scale perforation production. Due to the limitations of the structure and speed, the processing efficiency of the existing equipment is not ideal, which directly affects the production cost and market competitiveness of pouch batteries. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a high-speed perforating machine for a needle-punched steel strip of a pouch battery, including:

[0006] A frame, with a driving member fixedly connected to the left side of the bottom of the frame, and a motor can be used as the driving member;

[0007] A perforating die, fixedly connected to the upper end of the frame for perforating the metal strip;

[0008] A pressing mechanism, located above the perforating die, used to press the perforating die to complete the perforation action, including a pressing main shaft, cams, and a lower pressing plate. Bearings are sleeved on the left and right sides of the pressing main shaft and rotatably connected to the frame. Two cams are sleeved between the two bearings. The lower pressing plate is placed above the perforating die and abuts against the two cams;

[0009] The drawing mechanism is located in front of the perforating die and includes an upper roller and a lower roller. Bearings are sleeved on the left and right sides of the upper roller and the lower roller and are rotatably connected to the frame. Gears are fixedly connected to the left ends of the upper roller and the lower roller, and the two gears mesh with each other. An elastic material is provided on the outer periphery of the lower roller to prevent the burr from returning when the metal strip passes through the middle of the upper roller and the lower roller, resulting in the closing of the perforation.

[0010] The ratchet mechanism is located on the right side of the drawing mechanism and includes a ratchet and a lever. The ratchet is sleeved on the right end of the lower roller, and the front end of the lever is fixedly connected to the ratchet.

[0011] The crank - connecting rod mechanism is located on the right side of the pressing mechanism and includes a crank and a connecting rod. The crank is fixedly connected to the pressing main shaft. One end of the connecting rod is rotatably connected to the crank, and the other end is rotatably connected to the lever.

[0012] Furthermore, the high - speed perforating machine further includes a collecting mechanism, which is located at the front end of the frame and includes a collecting main shaft. Bearings are sleeved on the left and right sides of the collecting main shaft and are rotatably connected to the frame.

[0013] Furthermore, the high - speed perforating machine further includes a limiting mechanism, which includes an upper limiting plate, a lower limiting plate and a limiting bolt. The lower limiting plate is fixedly connected to the rear end of the frame. A gap is left between the upper limiting plate and the lower limiting plate for the metal strip to pass through. The two limiting bolts penetrate through the upper limiting plate and the lower limiting plate to limit the left - right swing of the metal strip.

[0014] Furthermore, both the upper limiting plate and the lower limiting plate are provided with empty grooves, and the two limiting bolts can slide left and right in the empty grooves to adjust the distance between the two limiting bolts according to the width of different metal strips.

[0015] Furthermore, the perforating die includes a lower die base plate fixedly connected to the frame. A lower template is fixedly connected above the lower die base plate. A guide plate, an upper template and an upper die base plate are sequentially arranged above the lower template.

[0016] Furthermore, two pressing blocks are provided at the upper end of the lower pressing plate, and the two pressing blocks are in contact with two cams.

[0017] Furthermore, the pressing mechanism further includes guide columns. Two guide holes are provided on each of the left and right sides of the lower pressing plate, and corresponding guide holes are provided on the frame below the lower pressing plate. The guide columns penetrate through the guide holes of the lower pressing plate and are placed in the guide holes on the frame below the lower pressing plate to play a guiding role when the perforating die opens and closes.

[0018] Furthermore, the collecting mechanism further includes baffles. The two baffles are sleeved on the collecting main shaft to make the winding of the metal strip neater.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. The high-speed perforator of the present utility model converts the high-speed rotational motion of the downward pressure main shaft into the high-frequency opening and closing of the perforation die by setting a cam on the downward pressure main shaft. Compared with traditional perforation equipment, its perforation speed has been greatly improved.

[0021] 2. Compared with traditional perforation equipment, the present utility model effectively reduces the volume of the equipment by adopting a compact mechanical layout, making the machine lighter and more convenient for deployment and movement in the production environment. This design not only saves valuable production space but also reduces the infrastructure and operation costs associated with large equipment.

[0022] 3. The high-speed perforator of the present utility model simplifies the mechanical structure, reduces the number of components, and thus reduces the complexity of the equipment. This simplification not only improves the stability and reliability of the equipment but also greatly simplifies the maintenance and operation processes, reduces the production interruption time caused by equipment failures, and further improves production efficiency.

[0023] 4. The high-speed perforator of the present utility model has high adaptability and can be adjusted simply to adapt to steel strips of different specifications, enabling the equipment to flexibly meet diverse production requirements and enhancing its versatility in different production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for describing the specific embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic front view structure of a high-speed perforator for needle-punching steel strips of pouch batteries;

[0026] Figure 2 It is a schematic rear view structure of a high-speed perforator for needle-punching steel strips of pouch batteries Figure 1 ;

[0027] Figure 3 It is a schematic rear view structure of a high-speed perforator for needle-punching steel strips of pouch batteries Figure 2 ;

[0028] Figure 4 It is a schematic rear view structure of a high-speed perforator for needle-punching steel strips of pouch batteries Figure 3 ;

[0029] Figure 5 It is a schematic structure diagram of the limit mechanism.

[0030] The markings in the attached drawings are as follows: 1, frame; 2, driving member; 3, punching die; 31, upper die base plate; 32, upper template; 33, guide plate; 34, lower template; 35, lower die base plate; 4, downward pressing mechanism; 41, downward pressing main shaft; 42, cam; 43, lower pressing plate; 431, downward pressing block; 44, guide post; 5, pulling mechanism; 51, upper roller; 52, lower roller; 6, ratchet mechanism; 61, ratchet; 62, lever; 7, crank connecting rod mechanism; 71, crank; 72, connecting rod; 8, collecting mechanism; 81, collecting main shaft; 82, baffle; 9, limiting mechanism; 91, upper limiting plate; 92, lower limiting plate; 93, limiting bolt. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the technical solutions in the specific implementation manners of the present utility model are clearly and completely described below to further elaborate the present utility model. Obviously, the described specific implementation manners are only a part of the implementation manners of the present utility model, rather than all the styles.

[0032] The structure of a high-speed punching machine for bag-type battery acupuncture steel strips is as Figures 1 to 5 shown, including:

[0033] A frame 1, with a driving member 2 fixedly connected to the left side of the bottom of the frame 1. A motor can be used as the driving member, and a pulley is fixedly connected to the left end of the driving member 2.

[0034] A punching die 3, fixedly connected to the upper end of the frame 1 for punching operations on metal strips, including a lower die base plate 35 fixedly connected to the frame 1, an upper template 34 fixedly connected above the lower die base plate 35, and a guide plate 33, an upper template 32 and an upper die base plate 31 are sequentially arranged above the lower template 34.

[0035] A downward pressing mechanism 4, located above the punching die 3 for pressing the punching die 3 to complete the punching action, including a downward pressing main shaft 41, a cam 42, a lower pressing plate 43 and a guide post 44. Bearings are sleeved on the left and right sides of the downward pressing main shaft 41 and rotatably connected to the frame 1. Two cams 42 are sleeved between the two bearings. The lower pressing plate 43 is placed above the upper die base plate 31 of the punching die 3. Two downward pressing blocks 431 are arranged at the upper end of the lower pressing plate 43. The two downward pressing blocks 431 on the lower pressing plate 43 are in contact with the two cams 42. Two guide holes are respectively arranged on the left and right sides of the lower pressing plate 43, and corresponding guide holes are also arranged on the frame 1 below the lower pressing plate 43. The guide post 44 passes through the guide holes of the lower pressing plate 43 and is placed in the guide holes on the frame 1 below the lower pressing plate 43 to play a guiding role when the punching die 3 opens and closes. A pulley is fixedly connected to the left end of the downward pressing main shaft 41, and a belt is sleeved between the pulley at the left end of the downward pressing main shaft 41 and the pulley at the left end of the driving member 2, and the driving member 2 drives the downward pressing main shaft 41 to rotate.

[0036] The drawing mechanism 5 is located in front of the punching die 3 and includes an upper roller 51 and a lower roller 52. Bearings are sleeved on the left and right sides of the upper roller 51 and the lower roller 52 and are rotatably connected to the frame 1. Gears are fixedly connected to the left ends of the upper roller 51 and the lower roller 52, and the two gears mesh with each other. After the metal strip is perforated, the upper roller 51 and the lower roller 52 rotate towards each other to draw the metal strip. When the metal strip passes through the middle of the upper roller 51 and the lower roller 52, if both the upper roller 51 and the lower roller 52 are made of rigid materials, burrs will return and cause the perforation to close. Therefore, an elastic material is provided on the outer periphery of the lower roller 52 to prevent this situation.

[0037] The ratchet mechanism 6 is located on the right side of the drawing mechanism 5 and includes a ratchet 61 and a lever 62. The ratchet 61 is sleeved on the right end of the lower roller 52, and the front end of the lever 62 is fixedly connected to the ratchet 61.

[0038] The crank - connecting rod mechanism 7 is located on the right side of the pressing mechanism 4 and includes a crank 71 and a connecting rod 72. The crank 71 is fixedly connected to the pressing main shaft 41. One end of the connecting rod 72 is rotatably connected to the crank 71, and the other end is rotatably connected to the lever 62. Through the cooperation of the ratchet mechanism 6 and the crank - connecting rod mechanism 7, it can be realized that one perforation action is completed and the metal strip is drawn once.

[0039] The collecting mechanism 8 is located at the front end of the frame 1 and includes a collecting main shaft 81 and baffles 82. Bearings are sleeved on the left and right sides of the collecting main shaft 81 and are rotatably connected to the frame 1. The two baffles 82 are sleeved on the collecting main shaft 81, which can make the metal strip neater when being wound. A pulley is fixedly connected to the left end of the collecting main shaft 81, and a belt is sleeved between the pulley at the left end of the collecting main shaft 81 and the pulley at the left end of the pressing main shaft 41, and the collecting main shaft 81 is driven to rotate by the pressing main shaft 41. Users can also cancel this mechanism according to the actual on - site needs and directly convey the metal strip to the next process.

[0040] The limiting mechanism 9 includes an upper limiting plate 91, a lower limiting plate 92 and limiting bolts 93. The lower limiting plate 92 is fixedly connected to the rear end of the frame 1. There is a gap between the upper limiting plate 91 and the lower limiting plate 92, and the metal strip enters the punching die 3 through this gap for punching operations. The two limiting bolts 93 pass through the upper limiting plate 91 and the lower limiting plate 92 to limit the left - right swing of the metal strip. Both the upper limiting plate 91 and the lower limiting plate 92 are provided with empty slots, and the two limiting bolts 93 can slide left and right in the empty slots to adjust the distance between the two limiting bolts 93 according to the width of different metal strips.

[0041] The usage process of a high-speed punching machine for the needle-piercing steel strip of a pouch battery of the present utility model is as follows: The metal strip enters the punching die 3 between the lower template 34 and the guide plate 33. The pressing mechanism 4 presses the upper die base plate 31 to drive the lower movement of the upper template 32. The upper template 32 is provided with punching needles for punching. During the closing process of the punching die 3, the rear end of the lever 62 rotates downward, and the pulling mechanism 5 does not rotate. As the pressing main shaft 41 continues to rotate, the elastic element inside the punching die 3 pushes the lower pressing plate 43 upward. At this time, the rear end of the lever 62 rotates upward, and the pulling mechanism 5 rotates to pull the metal strip. The perforated metal strip is wound by the collecting mechanism 8.

[0042] The above describes the main technical features, basic principles and related advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary specific embodiments, and can be implemented in other specific forms without departing from the concept or basic features of the present utility model. Therefore, from any point of view, the above specific embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0043] In addition, it should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed perforating machine for the needle-piercing steel strip of a pouch battery, characterized in that, Including: A frame (1), with a driving member (2) fixedly connected to the left side of the bottom of the frame (1); A perforating die (3), fixedly connected to the upper end of the frame (1); A downward pressing mechanism (4), located above the perforating die (3), including a downward pressing main shaft (41), a cam (42), and a lower pressing plate (43). Bearings are sleeved on the left and right sides of the downward pressing main shaft (41) and rotatably connected to the frame (1). Two cams (42) are sleeved between the two bearings. The lower pressing plate (43) is placed above the perforating die (3) and abuts against the two cams (42); A pulling mechanism (5), located in front of the perforating die (3), including an upper roller (51) and a lower roller (52). Bearings are sleeved on the left and right sides of the upper roller (51) and the lower roller (52) and rotatably connected to the frame (1). Gears are fixedly connected to the left ends of the upper roller (51) and the lower roller (52), and the two gears mesh with each other. An elastic material is provided on the outer circumference of the lower roller (52); A ratchet mechanism (6), located on the right side of the pulling mechanism (5), including a ratchet (61) and a lever (62). The ratchet (61) is sleeved on the right end of the lower roller (52), and the front end of the lever (62) is fixedly connected to the ratchet (61); A crank - connecting rod mechanism (7), located on the right side of the downward pressing mechanism (4), including a crank (71) and a connecting rod (72). The crank (71) is fixedly connected to the downward pressing main shaft (41), one end of the connecting rod (72) is rotatably connected to the crank (71), and the other end is rotatably connected to the lever (62).

2. The high-speed perforating machine for the needle-piercing steel strip of a pouch battery according to claim 1, wherein The high - speed perforating machine further includes a collecting mechanism (8), located at the front end of the frame (1), including a collecting main shaft (81). Bearings are sleeved on the left and right sides of the collecting main shaft (81) and rotatably connected to the frame (1).

3. The high-speed perforating machine for the needle-piercing steel strip of a pouch battery according to claim 1, wherein The high - speed perforating machine further includes a limiting mechanism (9), which includes an upper limiting plate (91), a lower limiting plate (92), and a limiting bolt (93). The lower limiting plate (92) is fixedly connected to the rear end of the frame (1). There is a gap between the upper limiting plate (91) and the lower limiting plate (92), and the two limiting bolts (93) penetrate through the upper limiting plate (91) and the lower limiting plate (92).

4. A high-speed perforating machine for a needle-pierced steel strip of a pouch battery according to claim 3, characterized in that, Both the upper limiting plate (91) and the lower limiting plate (92) are provided with empty grooves.

5. The high-speed perforator for the needle-piercing steel strip of a pouch battery according to claim 1, characterized in that, The perforating die (3) includes a lower die base plate (35) fixedly connected to the frame (1). An upper template (34) is fixedly connected above the lower die base plate (35). A guide plate (33), an upper template (32), and an upper die base plate (31) are sequentially arranged above the lower template (34).

6. The high-speed perforating machine for the needle-piercing steel strip of a pouch battery according to claim 1, wherein, Two downward pressing blocks (431) are provided at the upper end of the lower pressing plate (43), and the two downward pressing blocks (431) abut against the two cams (42).

7. The high-speed perforating machine for a needle-pierced steel strip of a pouch battery according to claim 1, characterized in that, The downward pressing mechanism (4) further includes guide columns (44). Two guide holes are provided on each of the left and right sides of the lower pressing plate (43). Corresponding guide holes are provided on the frame (1) below the lower pressing plate (43). The guide columns (44) penetrate through the guide holes of the lower pressing plate (43) and are placed in the guide holes on the frame (1) below the lower pressing plate (43).

8. A high-speed perforating machine for a needle-pierced steel strip of a pouch battery according to claim 1, characterized in that, The collecting mechanism (8) further includes baffles (82), and the two baffles (82) are sleeved on the collecting main shaft (81).

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