Button cell tab cutting device

Abstract

The utility model aims to provide a button cell tab cutting device which comprises a base, a lower cutter arranged on the base, an upper cutter driven by a cutting driving part to do lifting motion, a material carrying table and a cutting assembly, the material carrying table is adjacent to the lower cutter and arranged on the base, the material carrying table is used for bearing a cell, and the cutting assembly is used for cutting the cell. The cutting assembly comprises a lifting plate, a pressing plate, two elastic pieces and two guide columns, the lifting plate is slidably arranged on the base in the vertical direction, the two guide columns penetrate through the lifting plate, the pressing plate is arranged at the lower ends of the two guide columns, the two elastic pieces are arranged on the two guide columns in a sleeving mode respectively, and the two elastic pieces are arranged on the pressing plate. The upper cutter is arranged on the lifting plate, a plurality of negative pressure holes are formed in the side, close to the upper cutter, of the lifting plate, the cutting driving part is used for driving the lifting plate to descend, so that the pressing plate and the lower cutter jointly clamp a tab, and the negative pressure holes adsorb the tab; and further, the upper cutter and the lower cutter slide in a staggered manner to cut the tabs.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing devices, in particular to a button battery tab cutting device. Background Art

[0002] A button soft-pack battery refers to a lithium battery with a button-shaped appearance and a wound core encapsulated by an aluminum-plastic film, which is commonly used in small-sized electrical devices such as earphones.

[0003] One of the processes involved in the production of button batteries is to cut the tabs so that the tabs of the button batteries are adjusted to the same length. For example, Chinese patent document with publication number CN101774041A discloses a tab cutting device, which includes a driving mechanism and a cutting mechanism. The cutting mechanism includes an upper cutting knife and a lower cutting knife. The driving mechanism is coupled to the upper cutting knife. It is characterized in that the driving mechanism includes a motor, a cam, and an origin detection device for detecting the rotational position. The output shaft of the motor is coupled to the upper cutting knife through the cam. The motor drives the cam to rotate synchronously, and drives the upper cutting knife to move relative to the lower cutting knife through the rotation of the cam to perform cutting. Thus, in the existing cutting device, the rotational drive of the motor is converted into the up-and-down movement of the upper cutting knife through the cam. The motor only drives the cam to rotate by plus or minus 45 degrees, making the cutting force of the upper cutting knife on the tab more effective and uniform.

[0004] However, the existing cutting mechanism does not change the actual action of the cutting knife moving up and down. It only changes the speed of the up-and-down movement of the upper cutting knife through the cam. However, since the button battery is small in size, its tabs are thinner and softer. Once the cutting speed of the upper cutting knife becomes smaller, not only will the burrs at the cutting edge increase, but even the problem of incomplete cutting will occur. Therefore, in order to solve the problem of poor tab cutting, the button battery tab cutting device of this application is proposed. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a button battery tab cutting device that can reliably cut the tabs.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A button battery tab cutting device includes a base, a lower cutting knife disposed on the base, and an upper cutting knife driven by a cutting driving member to perform lifting movement, and further includes:

[0008] A loading table, the loading table is disposed adjacent to the lower cutting knife on the base, and the loading table is used to support the battery;

[0009] Cutting component, the cutting component includes a lifting plate, a pressing plate, two elastic members and two guide posts. The lifting plate is slidably arranged on the base along the vertical direction, and the lifting plate is connected to the output shaft of the cutting driving member. The two guide posts are both penetrated through the lifting plate. The pressing plate is arranged at the lower ends of the two guide posts and is aligned with the lower cutting knife. The two elastic members are respectively sleeved on the two guide posts so that the elastic members are respectively abutted against the pressing plate and the lifting plate. The upper cutting knife is arranged on the lifting plate, and the upper cutting knife and the lower cutting knife are arranged in a staggered manner. A plurality of negative pressure holes are formed on one side of the lifting plate close to the upper cutting knife. When the cutting driving member drives the lifting plate to descend, the pressing plate and the lower cutting knife jointly clamp the tab, and the negative pressure holes adsorb the tab, so that the upper cutting knife and the lower cutting knife slide in a staggered manner to cut the tab.

[0010] Optionally, a cross bar is arranged on the lifting plate, and the two guide posts are both penetrated through the cross bar, and the elastic member abuts against the cross bar.

[0011] Optionally, a connecting plate is arranged at one end of the two guide posts far away from the pressing plate, and the connecting plate and the pressing plate are respectively located on the upper and lower sides of the cross bar.

[0012] Optionally, an inclined surface is formed on one side of the lifting plate close to the upper cutting knife, and each negative pressure hole is located on the inclined surface so that the axis of each negative pressure hole faces the upper cutting knife.

[0013] Optionally, an air extraction hole is further formed in the lifting plate, and each negative pressure hole is communicated with the air extraction hole.

[0014] Optionally, an aggregate hole is formed in the base, and the aggregate hole is located on one side of the upper cutting knife far away from the lower cutting knife.

[0015] Optionally, an aggregate box is arranged at the bottom of the aggregate hole.

[0016] Optionally, the button cell tab cutting device further includes a loading fixture, and the loading fixture is detachably arranged on the loading table.

[0017] Optionally, a clamping groove is formed on the loading table, and the loading fixture is accommodated in the clamping groove.

[0018] Optionally, a plurality of loading grooves for accommodating the battery are formed on the loading fixture.

[0019] Compared with the prior art, the utility model has at least the following advantages:

[0020] Before the upper cutter cuts the tab, the pressing plate and the lower cutter clamp the battery tab together. At the same time, the negative pressure hole on the lifting plate draws air, so that the end of the tab away from the battery has an upward trend. When the upper cutter and the lower cutter move alternately, they can stably cut off the excess part of the tab, especially for button batteries with small size and soft tabs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a button battery tab cutting device according to one embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a cutting assembly according to one embodiment of the utility model;

[0024] Figure 3 for Figure 1 A schematic cross-sectional structure diagram of a button battery tab cutting device shown;

[0025] Figure 4 It is a schematic structural diagram of a material loading fixture according to one embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 10. Button battery tab cutting device; 100. Base; 200. Lower cutter; 300. Cutting drive member; 400. Upper cutter; 500. Loading platform; 600. Cutting assembly; 610. Lifting plate; 620. Pressing plate; 630. Elastic member; 640. Guide column; 611. Negative pressure hole; 650. Horizontal bar; 660. Connecting plate; 612. Oblique surface; 613. Exhaust hole; 110. Collecting hole; 700. Collecting box; 800. Loading fixture; 510. Card slot; 810. Loading trough. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention.

[0029] like Figure 1 and Figure 2As shown in the figure, a button battery tab cutting device 10 includes a base 100, a lower cutter 200 disposed on the base 100, and an upper cutter 400 driven by a cutting drive member 300 to move up and down. It also includes a loading table 500 and a cutting assembly 600. The loading table 500 is disposed adjacent to the lower cutter 200 on the base 100 and is used to support the battery. The cutting assembly 600 includes a lifting plate 610, a pressing plate 620, two elastic members 630, and two guide posts 640. The lifting plate 610 is slidably disposed on the base 100 along the vertical direction and is connected to the output shaft of the cutting drive member 300. The two guide posts 640 are both passed through the lifting plate 610. The pressing plate 620 is disposed at the lower ends of the two guide posts 640 and is aligned with the lower cutter 200. The two elastic members 630 are respectively sleeved on the two guide posts 640 so that the elastic members 630 are respectively abutted against the pressing plate 620 and the lifting plate 610. The upper cutter 400 is disposed on the lifting plate 610 and is staggeredly distributed with the lower cutter 200. A plurality of negative pressure holes 611 are formed on one side of the lifting plate 610 close to the upper cutter 400. When the cutting drive member 300 drives the lifting plate 610 to descend, the pressing plate 620 and the lower cutter 200 jointly clamp the tab, and the negative pressure holes 611 adsorb the tab, so that the upper cutter 400 and the lower cutter 200 slide staggeredly to cut the tab.

[0030] It should be noted that, for example, the base 100 includes a bottom plate and a vertical plate. The lower cutting knife 200 is installed on the bottom plate of the base 100, and the cutting drive member 300 is installed on the vertical plate of the base 100, and the cutting drive member 300 is located at the rear side of the vertical plate. The lifting plate 610 is slidably installed on the vertical plate of the base 100 along the vertical direction by means of a slide rail, and the lifting plate 610 is connected to the output shaft of the cutting drive member 300. In this way, the cutting drive member 300 drives the lifting plate 610 to perform a lifting motion. For example, the cutting drive member 300 is a cylinder. Further, the cutting drive member 300 can also be other drive sources capable of driving the lifting plate 610 to perform a linear motion along the vertical direction. The upper cutting knife 400 is installed on the lifting plate 610, so that the lifting plate 610 can drive the upper cutting knife 400 to perform a lifting motion. The two guide posts 640 are both arranged vertically through the lifting plate 610, so that the guide posts 640 can perform a lifting motion relative to the lifting plate 610. The pressing plate 620 is installed at the lower ends of the two guide posts 640. The two elastic members 630 are respectively sleeved on the two guide posts 640, and the two ends of the two elastic members 630 respectively abut against the pressing plate 620 and the lifting plate 610. For example, the elastic member 630 is a spring. In this way, the pressing plate 620 has a tendency to move downward relative to the lifting plate 610. The upper cutting knife 400 is located between the pressing plate 620 and the lifting plate 610, and the pressing plate 620 is aligned with the lower cutting knife 200, so that the upper cutting knife 400 and the lower cutting knife 200 are arranged in a staggered manner. Further, a plurality of negative pressure holes 611 are formed at a position of the lifting plate 610 close to the upper cutting knife 400. The negative pressure holes 611 are used to communicate with an external vacuum generator. In this way, the vacuum generator is used to make the negative pressure holes 611 form a negative pressure effect, that is, the air at a position close to the negative pressure holes 611 will be sucked into the negative pressure holes 611. In this way, after the battery is placed on the loading table 500, the tab of the battery is placed on the lower cutting knife 200. As the cutting drive member 300 drives the lifting plate 610 to descend, the pressing plate 620 will abut against the lower cutting knife 200 prior to the upper cutting knife 400, so that the pressing plate 620 and the lower cutting knife 200 jointly clamp the battery tab. At this time, the negative pressure holes 611 and the upper cutting knife 400 continue to descend synchronously. As the upper cutting knife 400 approaches the lower cutting knife 200, since the negative pressure holes 611 suck air, the battery tab will have a tendency to be sucked by the negative pressure holes 611 and approach the negative pressure holes 611, that is, the tab is held by the wind force until the upper cutting knife 400 and the lower cutting knife 200 perform a staggered motion to cut the tab. In this way, by using the button battery tab cutting device 10 of the present application, the button battery with a small volume and soft tabs can be reliably subjected to tab cutting operation.

[0031] As Figure 1 and Figure 2 shown, in one embodiment, a cross bar 650 is arranged on the lifting plate 610, the two guide posts 640 are both arranged through the cross bar 650, and the elastic member 630 abuts against the cross bar 650.

[0032] It should be noted that the horizontal bar 650 is installed on the lifting plate 610 through fasteners, and then through holes are opened on the horizontal bar 650 so that the guide posts 640 pass through the through holes, while the elastic member 630 is located below the horizontal bar 650, so that the pressing plate 620 has a tendency to move downward relative to the horizontal bar 650.

[0033] As Figure 1 and Figure 2 shown, in one embodiment, a connecting plate 660 is provided at one end of the two guide posts 640 away from the pressing plate 620, and the connecting plate 660 and the pressing plate 620 are respectively located on the upper and lower sides of the horizontal bar 650.

[0034] It should be noted that in order to prevent the guide posts 640 from falling off the horizontal bar 650, the connecting plate 660 is installed at the top ends of the two guide posts 640 through fasteners. In this way, the pressing plate 620, the connecting plate 660 and the two guide posts 640 form a fixed integral structure.

[0035] As Figure 2 shown, in one embodiment, an inclined surface 612 is provided on one side of the lifting plate 610 close to the upper cutter 400, and each negative pressure hole 611 is located on the inclined surface 612 so that the axis of each negative pressure hole 611 faces the upper cutter 400.

[0036] In this way, the negative pressure holes 611 are inclined towards the lower side of the upper cutter 400, so that when the upper cutter 400 is driven by the lifting plate 610 to descend, the negative pressure holes 611 can reliably adsorb the tab.

[0037] As Figure 2 shown, in one embodiment, an air extraction hole 613 is further provided in the lifting plate 610, and each negative pressure hole 611 communicates with the air extraction hole 613. In this way, the air extraction hole 613 is connected to an external vacuum generator through a pipeline, so that negative pressure is simultaneously formed in each negative pressure hole 611, thereby being able to reliably adsorb the tab.

[0038] As Figure 1 and Figure 3 shown, in one embodiment, an aggregate hole 110 is provided in the base 100, and the aggregate hole 110 is located on the side of the upper cutter 400 away from the lower cutter 200.

[0039] It should be noted that after the tab of the battery is cut off, it will fall along the aggregate hole 110 and be collected.

[0040] As Figure 1 and Figure 3 shown, in one embodiment, an aggregate box 700 is provided at the bottom of the aggregate hole 110. In this way, the cut tabs will fall into the aggregate box 700 along the aggregate hole 110, preventing the tabs from scattering on the tabletop of the machine.

[0041] As Figure 1 and Figure 3 shown, in one embodiment, the button cell tab cutting device 10 further includes a material loading fixture 800, and the material loading fixture 800 is detachably disposed on the material loading table 500.

[0042] It should be noted that the material loading fixture 800 loads a plurality of batteries. In this way, by transferring the material loading fixture 800, a plurality of batteries can be transferred simultaneously, so that the tabs of the plurality of batteries can be cut simultaneously, thereby improving the tab cutting efficiency.

[0043] As Figure 4 shown, in one embodiment, a card slot 510 is formed on the material loading table 500, and the material loading fixture 800 is received in the card slot 510. In this way, the card slot 510 is formed into a structure adapted to the material loading fixture 800. In this way, when the material loading fixture 800 is placed in the card slot 510, the material loading fixture 800 is reliably and stably fixed on the material loading table 500.

[0044] As Figure 4 shown, in one embodiment, a plurality of material loading slots 810 for receiving batteries are formed on the material loading fixture 800.

[0045] It should be noted that the material loading slots 810 are equally spaced from each other, and a button cell is loaded in each material loading slot 810. In this way, a plurality of batteries are transferred simultaneously by the material loading fixture 800, so that the tabs of the plurality of batteries can be cut simultaneously, effectively improving the cutting efficiency.

[0046] The above-described embodiments merely represent several embodiments of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the utility model patent. Among them, the installation / fixing / setting mentioned in the present invention can be understood as including but not limited to locking and fixing using screws / screws and welding unless otherwise specifically defined. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A button battery tab cutting device, comprising a base, a lower cutter arranged on the base, and an upper cutter driven by a cutting drive to perform a lifting motion, characterized in that: Also includes: A loading platform, the loading platform is disposed on the base adjacent to the lower cutter, and the loading platform is used to support batteries; The lifting plate is connected with the lower end of the guide column, and the two guide columns are respectively mounted on the two guide columns, so that the elastic members respectively abut against the pressing plate and the lifting plate, and the upper cutting knife is arranged on the lifting plate, and the upper cutting knife and the lower cutting knife are staggered. A plurality of negative pressure holes are provided on a side of the lifting plate close to the upper cutting knife, and the cutting driving member is used for driving the lifting plate to descend so that the pressing plate and the lower cutting knife jointly clamp the pole ear, and the negative pressure hole adsorbs the pole ear, thereby making the upper cutting knife and the lower cutting knife staggered and slide to cut the pole ear.

2. The button battery tab cutting device according to claim 1, characterized in that: The lifting plate is provided with a horizontal bar, the two guide posts are both passed through the horizontal bar, and the elastic member abuts against the horizontal bar.

3. The button battery tab cutting device according to claim 2, characterized in that: A connecting plate is arranged at one end of the two guide posts away from the pressing plate, and the connecting plate and the pressing plate are respectively located at the upper and lower sides of the horizontal bar.

4. The button battery tab cutting device according to claim 1, characterized in that: An inclined surface is provided on one side of the lifting plate close to the upper cutter, and each of the negative pressure holes is located on the inclined surface so that the axis of each of the negative pressure holes faces the upper cutter.

5. The button battery tab cutting device according to claim 4, characterized in that: An air extraction hole is also provided in the lifting plate, and each of the negative pressure holes is connected to the air extraction hole.

6. The button battery tab cutting device according to claim 1, characterized in that: A material collecting hole is provided in the base, and the material collecting hole is located at a side of the upper cutter away from the lower cutter.

7. The button battery tab cutting device according to claim 6, characterized in that: A material collection box is arranged at the bottom of the material collection hole.

8. The button battery tab cutting device according to claim 1, characterized in that: The button battery tab cutting device further comprises a loading jig, and the loading jig is detachably arranged on the loading platform.

9. The button battery tab cutting device according to claim 8, characterized in that: The loading platform is provided with a slot, and the loading fixture is accommodated in the slot.

10. The button battery tab cutting device according to claim 8, characterized in that: The loading fixture is provided with a plurality of loading slots for accommodating batteries.

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