Air-guided feeding device

Abstract

This invention discloses an air-guided feeding device, comprising an air-blowing fixing member, a plurality of air-blowing holes disposed on the air-blowing fixing member, at least one air inlet, and at least one air inlet channel. The device is characterized in that the plurality of air-blowing holes are disposed on a first surface of the air-blowing fixing member, the air inlet is disposed on a second surface of the air-blowing fixing member different from the first surface, the air inlet channel is disposed inside the air-blowing fixing member, and the plurality of air-blowing holes are connected to the air inlet through the air inlet channel. The flexible strip feeding device of this invention controls the direction of the strip through the air-blowing fixing member and guides the strip to the next station, avoiding strip bending and other phenomena, resulting in smoother strip feeding.

Description

Technical Field

[0001] This invention relates to the field of lithium battery manufacturing equipment technology, and in particular to a feeding device for assisting the feeding of flexible material strips. Background Technology

[0002] Some flexible material strips need to be fed smoothly from one station to the next as raw materials.

[0003] For example, in the current lithium battery production process, a winding machine is needed to wind positive electrode strips, negative electrode strips, and separator strips to form a battery cell. Before the strips are fed into the winding needle, the flexible strips are thin and easily curled, which prevents them from being fed into the winding needle normally, thus affecting production efficiency.

[0004] In existing technologies, there is no component control before the flexible material strip reaches the winding needle, which makes it prone to bending, resulting in the material strip not being able to be fed into the winding needle normally. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding device for controlling the direction of the feed strip before winding.

[0006] To achieve the above objectives, the feeding device of the present invention includes an air blowing fixture, a plurality of air blowing holes disposed on the air blowing fixture, at least one air inlet, and at least one air inlet channel. The plurality of air blowing holes are disposed on a first surface of the air blowing fixture, the air inlet is disposed on a second surface of the air blowing fixture that is different from the first surface, the air inlet channel is disposed inside the air blowing fixture, and the plurality of air blowing holes are connected to the air inlet through the air inlet channel.

[0007] In one embodiment of the present invention, the bottom surface of the air blowing fixture is connected to a base; a guide roller is installed at one end of the base located at one of the plurality of air blowing holes.

[0008] In one embodiment of the present invention, a recessed groove is provided on the bottom surface of the air-blowing fixing member near the end of the guide roller to accommodate the upper arc surface of the guide roller.

[0009] In one embodiment of the present invention, the first surface extends along the feeding direction of the flexible strip, and its extension line is tangent to the front end of the guide roller.

[0010] In one embodiment of the present invention, a third surface is formed below the first surface of the air-blowing fixing member, the third surface facing the feeding direction of the flexible strip; a plurality of air-blowing holes communicating with the air inlet channel are provided on the third surface for blowing air along the feeding direction.

[0011] In one embodiment of the present invention, the air intake channel includes a first air intake channel, a first air inlet is formed on a second surface, and each air inlet of the first air intake channel includes a first air inlet and / or a second air inlet, and a row of first air inlets and / or a row of second air inlets are formed on a first surface and / or a third surface, respectively.

[0012] In one embodiment of the present invention, the first surface extends to a processing unit forming a free end of the material strip; the air inlet channel further includes a second air inlet channel, a second air inlet is formed on the second surface, the second air inlet channel is disposed above the first air inlet channel, each air inlet of the second air inlet channel includes a third air inlet and / or a fourth air inlet, a row of third air inlets and / or a row of fourth air inlets are formed on the first surface respectively, and the extension direction of the fourth air inlet is toward the feeding direction of the flexible material strip.

[0013] In one embodiment of the present invention, at least one fixing seat is provided on the upper surface of the air blowing fixture, the fixing seat is provided with a first through hole, an ion air bar is provided in the first through hole, and the ion air bar is fixed above the air blowing fixture by at least one fixing seat.

[0014] In one embodiment of the present invention, the surface of the fixing seat near the flexible strip is provided with a plurality of second through holes, and the first through hole is connected to each of the second through holes.

[0015] In one embodiment of the present invention, the air blowing fixture is installed on the base through a waist-shaped hole.

[0016] In summary, the flexible strip feeding device of the present invention controls the direction of the strip by using an air-blowing fixing component and guides the strip to the next station, avoiding phenomena such as strip bending and making the strip feeding smoother. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the first embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of the second embodiment of the present invention;

[0021] Figure 5 This is a structural schematic diagram of the third embodiment of the present invention;

[0022] Figure 6 This is a cross-sectional view of the third embodiment of the present invention.

[0023] In the diagram, 1 is the base; 11 is the guide roller; and 12 is the threaded hole.

[0024] 2. Air blowing fixture; 21. Waist-shaped hole; 22. Alternating groove; 23. First surface; 24. Second surface; 25. Third surface; 26. Arc-shaped groove;

[0025] 3. Intake passage; 31. First intake passage; 32. Second intake passage;

[0026] 4. Air inlet; 41. First air inlet; 42. Second air inlet; 43. Third air inlet; 44. Fourth air inlet;

[0027] 5. Air intake; 51. First air intake; 52. Second air intake;

[0028] 6. Fixing base; 61. First through hole; 62. Ionizing air bar; 63. Second through hole. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0030] The flexible strip feeding device of the present invention controls the flexible strip, assisting in the smooth feeding of the strip from one station to the next. Because the strip is flexible and prone to curling, it is difficult to feed smoothly to the next station. In the following embodiments, an air-guided feeding device is used to smoothly feed the flexible strip from the feeding assembly to the cutting assembly, preventing the strip from curling towards the flexible strip feeding device and thus hindering normal feeding. In other embodiments, the flexible strip feeding device can also work in conjunction with other stations.

[0031] Figure 1 , 2 This is a schematic diagram of the structure of the first embodiment of the present invention. In this embodiment, the air-guided feeding device includes a generally rectangular base 1. A guide roller 11 is rotatably connected to one end of the base 1, and a threaded hole 12 is machined at the opposite end of the guide roller 11. The guide roller 11 can rotate to guide the free end of the material strip to complete the feeding. An air-blowing fixing member 2 is provided above the base 1. The length of the air-blowing fixing member 2 along the axial direction of the guide roller 11 is greater than the length of the guide roller 11, which can completely cover the width of the material strip and control the feeding of material strips of different widths. The air-blowing fixing member 2 is machined with an oblong hole 21, which is aligned with the threaded hole 12 on the base 1 and connected by screws to fix the two together and facilitate adjustment of the distance between the air-blowing fixing member 2 and the material strip.

[0032] The air-blowing fixing part 2 has a clearance groove 22 machined on the lower side near the material belt to accommodate the upper arc surface of the guide roller 11. The guide roller 11 will not be affected by the air-blowing fixing part 2 when it rotates during feeding. Furthermore, the base 1 and the air-blowing fixing part 2 are more compactly assembled, which shortens the height of the feeding device and thus shortens the length of the free hanging at the front end of the material belt, reducing the distance at which the material belt curls and wrinkles.

[0033] The side of the air-blowing fixing component 2 closest to the material strip is a first surface 23. In this embodiment, the first surface 23 is perpendicular to the horizontal plane, but in other embodiments, it can be at other angles to the horizontal plane. An air inlet channel 3 and multiple air-blowing holes 4 are provided within the air-blowing fixing component 2, and all the air-blowing holes 4 are connected to the air inlet channel 3. The air inlet channel 3 is parallel to the axial direction of the guide roller 11. The multiple air-blowing holes 4 are distributed along the air inlet channel 3, forming a row of air-blowing holes 4 on the first surface 23. These air-blowing holes 4 are parallel to the axial direction of the guide roller 11, uniformly blowing the material strip and preventing uneven force on both sides of the material strip in the axial direction, which could cause it to flip and wrinkle. An air inlet 5 is formed on the second surface 24 of the air-blowing fixing component 2 in the air inlet channel 3. In this embodiment, the second surface 24 is the side surface of the air-blowing fixing component 2, but it can also be other surfaces. The position of the air inlet 5 is reasonably set according to the positional relationship of each component. An air-blowing device (not shown) is connected to the air inlet 5, and the air-blowing device blows air onto the material strip through the air inlet channel 3 and the multiple air-blowing holes 4.

[0034] In this embodiment, the operation of the feeding device is as follows:

[0035] After the strip is cut by the cutter, before entering the guide roller 11, the feeding assembly feeds the end of the strip to the air blowing fixture 2. The end of the strip is prone to curling towards the air blowing fixture 2, affecting the feeding of the strip. The air blowing device blows air into the air inlet channel 3 and the air blowing holes 4 through the air inlet 5. The air blowing holes 4 are evenly distributed on the first surface 23, blowing the strip to prevent it from curling and ensuring that the strip is fed smoothly.

[0036] like Figure 3 , Figure 4 The image shows a second embodiment of the present invention, which is an improvement upon the first embodiment.

[0037] In this embodiment, the first surface 23 of the air-blowing fixing member 2 extends along the feeding direction of the material strip, and the extension surface of the first surface 23 along the feeding direction of the material strip is tangent to the front end of the guide roller 11, which plays a guiding role in the feeding of the material strip.

[0038] The clearance groove 22 forms a third surface 25 at the bottom of the first surface 23, and the third surface 25 faces the feeding direction of the flexible strip.

[0039] The air inlet channel 3 within the air-blowing fixture 2 is configured as a first air inlet channel 31. The first air inlet channel 31 forms a first air inlet 51 on the second surface 24. Each air-blowing hole 4 is configured in pairs, forming a row of first air-blowing holes 41 and a row of second air-blowing holes 42 on the first surface 23 and the third surface 25, respectively. The first air-blowing holes 41 are evenly arranged to evenly blow up the material strip and prevent the material strip from curling towards the air-blowing fixture 2; the second air-blowing holes 42 are evenly arranged to prevent the end of the material strip from being accidentally inserted into the relief groove 22 due to curling, thus assisting in the feeding of the material strip and improving the feeding effect.

[0040] When the strip is cut and has curled above the air-blowing fixing member 2, the air-blowing fixing member 2 cannot control the strip. In this embodiment, a fixing base 6 is fixedly connected above the air-blowing fixing member 2 by screws. The fixing base 6 is provided with a first through hole 61, and an ionizing air bar 62 is provided in the first through hole 61. The surface of the fixing base 6 near the strip is provided with multiple second through holes 63. The first through hole 61 is connected to each of the second through holes 63. The ionizing air bar 62 is fixed above the air-blowing fixing member 2 by the fixing base 6, extending the air-blowing length of the air-blowing fixing member 2 in the feeding direction. The air-blowing holes of the ionizing air bar 62 face the strip. The air-blowing holes of the ionizing air bar 62 exposed to the outside blow air directly onto the strip. The air-blowing holes of the ionizing air bar 62 located in the first through hole 61 blow air onto the strip through the second through holes 63. This can both prevent the strip above the air-blowing fixing member 2 from curling and eliminate static electricity.

[0041] In other embodiments, to make the ion bar 62 more stable when blowing air, the ion bar can also be fixed to the blowing fixture 2 by multiple fixing seats 6.

[0042] Compared to the first embodiment, the advantages of this embodiment are as follows: the first surface 23 extends along the feeding direction of the strip and is tangent to the guide roller 11, which can accurately guide the feeding of the strip and feed it into the guide roller 11 along the first surface 23; each air blowing hole 4 is divided into two, the first air blowing hole 41 blows air towards the surface of the strip to prevent the strip from curling, and the second air blowing hole 42 blows air along the feeding direction of the strip to assist the feeding of the strip and prevent the strip from being mistakenly inserted into the relief groove 22; an ion air bar 62 is set above the air blowing fixing member 2, which extends the length of the guide surface and eliminates static electricity, resulting in a better feeding effect than the first embodiment.

[0043] In this embodiment, the operation of the feeding device is as follows:

[0044] After being cut by the cutter, the strip feeds along the first surface 23 of the air-blowing fixture 2 to the guide roller 11 before entering the guide roller 11. The air-blowing device blows air onto the strip through the first air inlet 51, the air inlet channel 3, the first air-blowing hole 41, and the second air-blowing hole 42. The ion air bar 62 also blows air onto the strip. The first air-blowing hole 41 blows up the strip to prevent it from curling. The second air-blowing hole 42 applies a force to the strip along the feeding direction to assist the strip feeding and prevent the end of the strip from being inserted into the clearance groove 22, thereby improving the feeding efficiency and feeding accuracy of the strip. The ion air bar 62 eliminates the static electricity generated by the interaction friction.

[0045] like Figure 5 , Figure 6 The figure shown is a third embodiment of the present invention, which is an improvement on the second embodiment.

[0046] The height of the air-blowing fixing member 2 is limited between the feeding assembly and the cutting assembly. In this embodiment, increasing the height of the air-blowing fixing member 2 increases the area of ​​the first surface 23. The upper end of the air-blowing fixing member 2 is tightly connected to the feeding assembly, so that the material belt is controlled when it is transferred from the feeding assembly to the air-blowing fixing member 2. Based on the second embodiment, a second air inlet channel 32 is added inside the air-blowing fixing member 2. The second air inlet channel 32 is located above the first air inlet channel 31, and a second air inlet 52 is formed on the second surface 24. Each air-blowing hole 4 of the second air inlet channel 32 includes two holes, forming a row of third air-blowing holes 43 and a row of fourth air-blowing holes 44 on the first surface 23, respectively. The extension direction of the fourth air-blowing holes 44 is towards the material belt feeding direction. The first air blowing hole 41 and the third air blowing hole 43 blow air towards the material belt, increasing the air blowing area and more effectively preventing the material belt from curling; the second air blowing hole 42 and the fourth air blowing hole 44 blow air along the material belt feeding direction, which increases the force controlling the material belt feeding and more effectively assists feeding.

[0047] Since the first surface 23 extends along the feeding direction of the material strip, when the height of the air blowing fastener 2 increases, the upper end of the air blowing fastener 2 will extend to the position that affects the waist-shaped hole 21 in fixing the air blowing fastener 2. Therefore, an arc-shaped groove 26 corresponding to the waist-shaped hole 21 is processed at the upper end of the air blowing fastener 2, which will not affect the use of the waist-shaped hole 21 and fix the air blowing fastener 2.

[0048] In this embodiment, the air intake channel 3 is configured as a first air intake channel 31 and a second air intake channel 32. In other embodiments, the number of air intake channels 3 can be set according to actual needs. The first air intake channel 31 and the second air intake channel 32 respectively form a first air inlet 51 and a second air inlet 52 on the second surface 24, which are respectively connected to the air blowing device. The air blowing device can optionally blow air into the first air inlet 51 and the second air inlet 52 simultaneously or separately, depending on the requirements.

[0049] Compared to the second embodiment, the advantage of this embodiment is that it increases the air blowing area of ​​the first surface 23, prevents the air blowing fixture from detaching from the control of the air blowing fixture 2, prevents the end of the material strip from being accidentally inserted between the air blowing fixture 2 and the fixing seat 6 in the second embodiment due to curling, and does not affect the installation of the air blowing fixture 2 on the base 1. The feeding effect is better than that of the second embodiment.

[0050] In this embodiment, the operation of the feeding device is as follows:

[0051] After being cut by the cutter, the strip feeds along the first surface 23 of the air-blowing fixing member 2 onto the guide roller 11 before entering the guide roller 11. The air-blowing device blows air onto the strip through the first air inlet 51, the first air inlet channel 31, the first air blowing hole 41, and the second air blowing hole 42; and through the second air inlet 52, the second air inlet channel 32, the third air blowing hole 43, and the fourth air blowing hole 44. The first air blowing hole 41 and the third air blowing hole 43 lift the strip, keeping it flat as it feeds along the first surface 23 and preventing it from curling; the second air blowing hole 42 and the fourth air blowing hole 44 apply a stronger force to the strip in the direction of feed, making it easier for the strip to enter the winding needle.

[0052] In other embodiments, the number of air inlet channels 3 can be set to multiple, and the number of air inlets 3 with air holes 4 can be selected to be one or two, depending on actual needs. The number and direction of the air inlet channels 3 are not limited, but it is necessary to ensure that the air holes 4 are evenly distributed on the first surface 23, blowing air evenly towards the material strip, so that the material strip is subjected to uniform force and to prevent the material strip from turning over and wrinkling due to uneven force; and the number of air holes 4 should be matched with the air flow rate of the air blowing device and should be controlled within a certain range to avoid excessive air blowing force on the material strip and blowing the material strip away.

[0053] In summary, the air-guided feeding device of the present invention can control the direction of the material belt, prevent the material belt from bending, and smoothly guide the material belt into the next station.

[0054] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A blowing-guided feeding device, comprising a blowing fixture, a plurality of blowing holes disposed on the blowing fixture, at least one air inlet, and at least one air inlet channel, characterized in that, The plurality of air blowing holes are disposed on a first surface of the air blowing fixture, the air inlet is disposed on a second surface of the air blowing fixture that is different from the first surface, the air inlet channel is disposed inside the air blowing fixture, and the plurality of air blowing holes are connected to the air inlet through the air inlet channel. The bottom surface of the air blowing fixture is connected to a base; a guide roller is installed at one end of the base located at one of the plurality of air blowing holes. The bottom surface of the air-blowing fixing component is provided with a relief groove at one end near the guide roller to accommodate the upper arc surface of the guide roller; A third surface is formed below the first surface of the air-blowing fixing member, and the third surface faces the feeding direction of the flexible strip; a plurality of air-blowing holes communicating with the air inlet channel are provided on the third surface for blowing air along the feeding direction.

2. The air-guided feeding device as described in claim 1, characterized in that, The first surface extends along the feeding direction of the flexible strip, and its extension line is tangent to the front end of the guide roller.

3. The air-guided feeding device as described in claim 1, characterized in that, The air intake channel includes a first air intake channel, and a first air inlet is formed on the second surface. Each air inlet of the first air intake channel includes a first air inlet and / or a second air inlet, and a row of first air inlets and / or a row of second air inlets are formed on the first surface and / or the third surface, respectively.

4. The air-guided feeding device as described in claim 3, characterized in that, The first surface extends to the processing unit forming a free end of the material strip; the air inlet channel further includes a second air inlet channel, a second air inlet is formed on the second surface, the second air inlet channel is disposed above the first air inlet channel, each air inlet of the second air inlet channel includes a third air inlet and / or a fourth air inlet, a row of third air inlets and / or a row of fourth air inlets are formed on the first surface respectively, and the extension direction of the fourth air inlet is toward the feeding direction of the flexible material strip.

5. The air-guided feeding device as described in claim 3, characterized in that, The upper surface of the air blowing fixture is provided with at least one fixing seat, the fixing seat is provided with a first through hole, the first through hole is provided with an ion air bar, and the ion air bar is fixed above the air blowing fixture by at least one fixing seat.

6. The air-guided feeding device as described in claim 5, characterized in that, The surface of the fixing seat near the flexible strip is provided with a plurality of second through holes, and the first through hole is connected to each of the second through holes.

7. The air-guided feeding device according to any one of claims 2-6, characterized in that, The air-blowing fixture is installed on the base through a waist-shaped hole.

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