Front and back positioning device for tab cutter of winding machine

Abstract

The utility model discloses a front and back positioning device for a tab cutter of a winding machine, relates to the technical field of tab cutting, and solves the technical problem that in the prior art, when the tab cutter of the winding machine manually places a tab between diaphragms, the requirement on operators is high. The driving block, the driving rod and the positioning block which slide directionally are arranged between the guide block and the winding groove, the pole lug can be driven to slide to jack up the driving rod after being placed on the surface of the guide block, at the moment, the selection assembly and the driving belt can drive the positioning block to slide towards the position of the pole lug, and the position of the pole lug is fixed through the driving block and a contact block on the surface of the positioning block. When the threaded rod rotates and the driving block slides, the tabs slide towards the position of the winding groove, the upper tabs and the lower tabs are directly different during winding through the driving rods with different lengths, the interval between the tabs is accurately controlled, and the quality of the tabs after production is guaranteed; and the moving distance of the tab operated by an operator is reduced, so that the possibility of damage to the tab and a human body is relatively reduced.

Description

Technical Field

[0001] The utility model belongs to the field of tabs and relates to a tab positioning technology, in particular to a front and rear positioning device for a tab cutter of a winding machine. Background Art

[0002] The winding machine tab cutter is a tool specially designed for cutting lithium battery tabs in the winding machine; it is used to accurately cut the tabs from the pole sheets during the process of winding the pole sheets into battery cells so that they can be subsequently connected to other parts of the battery.

[0003] The commonly used winding machine tab cutter device includes four parts: tab transmission, winding, cutting and collection. During use, two diaphragms are first wound from different positions to the surface of the winding structure. There is a gap in the middle of the diaphragm after it is wound. Tabs are placed on the surface of the upper diaphragm and between the diaphragms respectively. The tabs between the diaphragms are wound first. After the tabs are placed, the winding device completely winds the tabs between the diaphragms. After the tab roll is formed, the winding structure will rotate to the cutting position to cut the diaphragm. When the diaphragm is cut, there is a roller on the surface of the tab roll to press against the diaphragm. After cutting, the roller drives the tab roll to rotate and sticks the tab roll to fix the shape. Finally, the winding support structure retracts and the tab roll falls to the designated position.

[0004] However, when the tabs are placed between the diaphragms in the above process, manual transfer is generally used and the tab positions are located by protruding blocks on the surface of the tab placement structure. During the placement and movement of the tabs, the operator needs to be familiar with the gap between the upper and lower tabs and grasp the time for inserting the tabs into the diaphragm, which places strict requirements on the operator. In addition, the surface of the tabs may be coated with conductive materials or specially treated. Moving the tabs by fingers may damage the tab performance, and the tab surface material may cause harm to the human body.

[0005] Therefore, the utility model proposes a front and rear positioning device for a tab cutter of a winding machine. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a front-to-back positioning device for a tab cutter of a winding machine. The front-to-back positioning device for a tab cutter of a winding machine solves the problem in the prior art that the tab cutter of a winding machine manually places the tab between the separators, which places high demands on the operator.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present utility model, a front and rear positioning device for a tab cutter of a winding machine is proposed, comprising: a winding frame, a winding groove is provided on the surface of the winding frame, a plurality of guide blocks are fixedly connected to the surface of the winding frame, two of the guide blocks are provided with angles at different angles, and the sides away from the winding groove are both horizontal, and the extension lines of the inclined positions of the two guide blocks intersect at the position of the winding groove, a special-shaped groove is provided on the surface of the winding frame, the special-shaped groove is located between the winding groove and the guide block, two positioning mechanisms are provided inside the special-shaped groove, and the positioning mechanism comprises:

[0008] A driving block, wherein the driving block is slidably connected to the special-shaped groove, the driving block is threadedly connected to a threaded rod, the driving rod and the positioning rod are rotatably connected inside the driving block, and a selection component for achieving directional synchronization is provided between the driving rod and the positioning rod;

[0009] A positioning block, wherein the positioning block is slidably connected to the surface of the driving block, the positioning block and the driving block are parallel to the surface of the guide block, the surface of the positioning block is fixedly connected to a driving belt, and the other end of the driving belt is fixedly connected to the positioning rod;

[0010] A slope block, the slope block is fixedly connected to the winding frame, the slope block is peak-shaped, the direction of the middle position of the slope block is parallel to the non-horizontal position of the guide block, and a positioning groove is opened on the surface of the positioning block, and the positioning groove is adapted to the slope block;

[0011] A plurality of contact blocks are detachably connected to the driving block, the driving rod and one end of the positioning block close to the guide block.

[0012] Optionally, the selection component includes a drive groove opened on the surface of the drive rod, a plurality of drive teeth are fixedly connected inside the drive groove, the drive teeth are evenly fixed inside the drive groove in a ring array, a selection rod is slidably connected inside the positioning rod, and selection teeth are fixedly connected to the surface of the selection rod, the selection teeth and drive teeth are respectively in the shape of a pawl and ratchet teeth, the two are adapted, and there is partial overlap between the width of the drive teeth and the sliding range of the selection rod.

[0013] Optionally, a rotation groove is provided on the surface of the positioning rod, a rotation spring is fixedly connected inside the rotation groove, the other end of the rotation spring is in contact with the surface of the selection tooth, a selection block is fixedly connected inside the winding frame, the selection block is slidingly connected to the selection rod, and the horizontal section of the selection block decreases in size toward the winding groove position.

[0014] Optionally, the driving block, driving rod and positioning rod are all threadedly connected to a fixing rod, the end of the fixing rod facing the contact block is conical, and the driving block, driving rod and positioning rod are all provided with fixing grooves inside, and a fixing block is slidably connected inside the fixing groove.

[0015] Optionally, a fixing spring is fixedly connected between the fixing blocks, one end of the fixing block close to the fixing rod is arc-shaped, and an insertion groove is provided inside the contact block, and the insertion groove is adapted to the fixing block.

[0016] Optionally, a reversing cone wheel is fixedly connected to one end of the threaded rod close to the winding groove, and the reversing cone wheels in the two positioning mechanisms are meshed with each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: a directionally sliding drive block, a drive rod and a positioning block are arranged between the guide block and the winding groove, wherein the drive block and the positioning block are parallel to the guide block, and the drive rod is closer to the guide block than the drive block, and rotates with the inside of the drive block, so that after the pole ear is placed on the surface of the guide block, it can be driven to slide to the drive rod position and lift the drive rod. At this time, the positioning block will be driven to slide toward the pole ear position by selecting the component and the drive belt, and then the pole ear position is fixed by the contact block on the surface of the drive block and the positioning block. When the threaded rod rotates and the drive block slides, the pole ear slides toward the winding groove position, and the driving rods of different lengths are used to directly make the winding between the upper and lower pole ears different, accurately control the spacing between the pole ears, and ensure the quality of the pole ears after production; and the moving distance of the operator to operate the pole ear is reduced, which relatively reduces the possibility of damage to the pole ear and the human body, is safer and ensures the quality of the pole ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural stereogram of the utility model;

[0019] Figure 2 This is a sectional view of the three-dimensional structure of the fixing block of the present invention;

[0020] Figure 3 This is a sectional view of the three-dimensional structure of the positioning rod of the utility model;

[0021] Figure 4 For the utility model Figure 1 A magnified view of the local structure at point A;

[0022] Figure 5 For the utility model Figure 2 A magnified view of the local structure at point B in the middle;

[0023] Figure 6 For the utility model Figure 3 A magnified view of the local structure at point C in the middle;

[0024] Figure 7 For the utility model Figure 3 A magnified view of the local structure at point D in the middle.

[0025] In the figure: 1. Winding frame; 2. Winding trough; 3. Guide block; 4. Special-shaped trough;

[0026] 51. Driving block; 52. Driving rod; 53. Positioning rod; 54. Positioning block; 55. Driving belt; 56. Slope block; 57. Positioning groove; 58. Contact block; 59. Threaded rod;

[0027] 61. Driving slot; 62. Driving tooth; 63. Selecting lever; 64. Selecting tooth; 65. Rotating slot; 66. Rotating spring; 67. Selecting block;

[0028] 71. Fixing rod; 72. Fixing slot; 73. Fixing block; 74. Fixing spring; 75. Insertion slot;

[0029] 81. Reversing cone wheel. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figure 1-7 As shown, a front and rear positioning device for a tab cutter of a winding machine comprises a winding frame 1, and a winding groove 2 is formed on the surface of the winding frame 1;

[0032] It should be noted that the winding frame 1 includes a winding structure, a cutting structure (not shown in the figure), a collecting structure and a resisting roller. The resisting roller is slidably connected to the inside of the winding frame 1 and can rotate at a specified position. The winding mechanism is located inside the winding groove 2, and the cutting structure and the resisting roller slide in a vertical position on the winding groove 2.

[0033] A plurality of guide blocks 3 are fixedly connected to the surface of the winding frame 1. Two of the guide blocks 3 include a horizontal portion and an inclined portion. The extension lines of the inclined portions intersect inside the winding groove 2. The bidirectional extension lines of the inclined positions of the two guide blocks 3 intersect at the position of the winding groove 2.

[0034] The surface of the winding frame 1 is provided with a special-shaped groove 4, which is located between the winding groove 2 and the guide block 3 and has an irregular shape; two positioning mechanisms are provided inside the special-shaped groove 4, and the positioning mechanisms include:

[0035] A driving block 51 is slidably connected to the special-shaped groove 4. The driving block 51 is threadedly connected to a threaded rod 59. Matching threads (not shown) are provided between the driving block 51 and the threaded rod 59. A plurality of rotating bearings (not shown) are fixedly connected to the interior of the driving block 51. The inner rings of the rotating bearings are respectively clamped with a driving rod 52 and a positioning rod 53.

[0036] A spring (not shown) is fixedly connected between the driving rod 52 and the driving block 51;

[0037] When the driving rod 52 is in a normal state, it is closer to the extension line of the guide block 3 to the winding groove 2 than the driving block 51. A selection component for achieving directional synchronization is provided between the driving rod 52 and the positioning rod 53.

[0038] It should be noted that the lengths of the driving rods 52 in the two positioning mechanisms are different, with the lower driving rod 52 being longer;

[0039] A positioning block 54 is slidably connected to the surface of the driving block 51, and a positioning spring is fixedly connected between the positioning block 54 and the driving block 51; the positioning block 54 and the driving block 51 are parallel to the surface of the guide block 3, and a driving belt 55 is fixedly connected to the surface of the positioning block 54, and the other end of the driving belt 55 is fixedly connected to the positioning rod 53;

[0040] A gradient block 56, wherein the gradient block 56 is fixedly connected to the winding frame 1;

[0041] It should be noted that the upper gradient block 56 of the two positioning mechanisms is fixed to the winding frame 1 , and the lower gradient block 56 is fixed to the special-shaped groove 4 ;

[0042] The slope block 56 is in the shape of a mountain peak, and the direction of the middle position of the slope block 56 is parallel to the non-horizontal position of the guide block 3. The surface of the positioning block 54 is provided with a positioning groove 57, and the positioning groove 57 is adapted to the slope block 56;

[0043] A plurality of contact blocks 58 , each of which is detachably connected to the driving block 51 , the driving rod 52 , and an end of the positioning block 54 close to the guide block 3 ;

[0044] The front and rear positioning device of the tab cutter of the winding machine, in actual application, a directional sliding drive block 51, a drive rod 52 and a positioning block 54 are set between the guide block 3 and the winding groove 2, wherein the drive block 51 and the positioning block 54 are parallel to the guide block 3, and the drive rod 52 is closer to the guide block 3 than the drive block 51, and rotates inside the drive block 51, and then after the tab is placed on the surface of the guide block 3, it can be driven to slide to the position of the drive rod 52 and lift the drive rod 52, at this time, by selecting the components and the drive belt 55, the positioning block 54 will be driven. The positioning block 54 slides toward the tab position, and then the tab position is fixed by the driving block 51 and the contact block 58 on the surface of the positioning block 54. When the threaded rod 59 rotates and the driving block 51 slides, the tab slides toward the winding groove 2. The different lengths of the driving rods 52 directly make the winding between the upper and lower tabs different, and accurately control the spacing between the tabs to ensure the quality of the tabs after production. In addition, the moving distance of the operator when operating the tab is reduced, which relatively reduces the possibility of damage to the tab and the human body, is safer and ensures the quality of the tab.

[0045] In some specific embodiments, the selection assembly includes a drive groove 61 formed on the surface of the drive rod 52, wherein a plurality of drive teeth 62 are fixedly connected to the interior of the drive groove 61, and the drive teeth 62 are evenly fixed inside the drive groove 61 in an annular array. A selection rod 63 is slidably connected to the interior of the positioning rod 53, and a selection tooth 64 is fixedly connected to the surface of the selection rod 63. The selection tooth 64 and the drive tooth 62 are respectively in the shape of a pawl and a ratchet tooth, and the two are adapted to each other;

[0046] It should be noted that there is a partial overlap between the width of the drive tooth 62 and the sliding range of the selector lever 63;

[0047] The surface of the positioning rod 53 is provided with a rotation groove 65, and a rotation spring 66 is fixedly connected inside the rotation groove 65. The other end of the rotation spring 66 is in contact with the surface of the selection tooth 64. A selection block 67 is fixedly connected inside the winding frame 1. The selection block 67 is slidably connected to the selection rod 63. The horizontal section of the selection block 67 decreases in size toward the winding groove 2.

[0048] In some specific embodiments, the driving block 51, the driving rod 52 and the positioning rod 53 are all threadedly connected to a fixing rod 71, and the end of the fixing rod 71 facing the contact block 58 is conical. The driving block 51, the driving rod 52 and the positioning rod 53 are each provided with a fixing groove 72, and a fixing block 73 is slidably connected to the inside of the fixing groove 72. A fixing spring 74 is fixedly connected between the fixing blocks 73. The end of the fixing block 73 close to the fixing rod 71 is arc-shaped. The contact block 58 is provided with an insertion groove 75, and the insertion groove 75 is adapted to the fixing block 73.

[0049] In some specific embodiments, a reversing cone wheel 81 is fixedly connected to one end of the threaded rod 59 close to the winding groove 2, and the reversing cone wheels 81 in the two positioning mechanisms are meshed with each other;

[0050] The working principle of the present invention is as follows: the tab is placed on the surface of the guide block 3, and one end of the tab is pressed against the driving rod 52 to rotate. The rotation of the driving rod 52 causes the selection rod 63 to rotate through the selection tooth 64 and the driving tooth 62, which drives the positioning rod 53 to rotate, and the positioning block 54 is driven to move on the tab surface through the driving belt 55. The positioning block 54 and the driving block 51 fix the tab, and the threaded rod 59 rotates, driving the driving block 51 and the positioning block 54 to move toward the winding groove 2, and move to the descending position of the slope block 56. The positioning block 54 moves to its original position. At this time, the selection tooth 54 and the driving tooth 62 drive the selection rod 63 to rotate, which drives the positioning block 53 to rotate, and the driving belt 55 drives the positioning block 54 to move on the tab surface. The positioning block 54 and the driving block 51 fix the tab. The threaded rod 59 rotates, driving the driving block 51 and the positioning block 54 to move toward the winding groove 2, and move to the descending position of the slope block 56. The positioning block 54 moves to its original position. 64 is disengaged from the driving tooth 62 under the action of the selection rod 63 and the selection block 67, and the pole ear is inserted into the winding structure at the same time. When the pole ear is wound, the threaded rod 59 drives the driving block 51 to return to its original position, and the driving rod 52 returns to its original position after being disengaged from the pole ear; when the contact block 58 has been used for a long time, the fixed rod 71 can be rotated to push it away from the contact block 58. The movement of the fixed rod 71 causes the fixed block 73 to slide under the action of the fixed spring 74 and disengage from the insertion slot 75. At this time, the contact block 58 can be slid and replaced, and the fixed rod 71 can be rotated in the opposite direction during installation.

[0051] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A front and rear positioning device for a tab cutter of a winding machine, characterized in that: include: A winding frame (1) is provided with a winding groove (2) on the surface of the winding frame (1), and a plurality of guide blocks (3) are fixedly connected to the surface of the winding frame (1), and two of the guide blocks (3) each include a horizontal portion and an inclined portion, and the extension lines of the inclined portions intersect inside the winding groove (2), and the position of the inclined portion is closer to the winding groove, and the extension lines of the inclined positions of the two guide blocks (3) intersect at the position of the winding groove (2), and a special-shaped groove (4) is provided on the surface of the winding frame (1), and the special-shaped groove (4) is located between the winding groove (2) and the guide blocks (3), and two positioning mechanisms are provided inside the special-shaped groove (4), and the positioning mechanisms include: A driving block (51), wherein the driving block (51) is slidably connected to the special-shaped groove (4), the driving block (51) is threadedly connected to a threaded rod (59), the driving block (51) is internally rotatably connected to a driving rod (52) and a positioning rod (53), and a selection component for achieving directional synchronization is provided between the driving rod (52) and the positioning rod (53); A positioning block (54), wherein the positioning block (54) is slidably connected to the surface of the driving block (51), the positioning block (54) and the driving block (51) are parallel to the surface of the guide block (3), a driving belt (55) is fixedly connected to the surface of the positioning block (54), and the other end of the driving belt (55) is fixedly connected to the positioning rod (53); A gradient block (56), the gradient block (56) is fixedly connected to the winding frame (1), the gradient block (56) is in the shape of a mountain peak, the direction of the middle position of the gradient block (56) is parallel to the non-horizontal position of the guide block (3), and a positioning groove (57) is provided on the surface of the positioning block (54), and the positioning groove (57) and the gradient block (56) are adapted; A plurality of contact blocks (58) are detachably connected to the driving block (51), the driving rod (52) and one end of the positioning block (54) close to the guide block (3).

2. The front and rear positioning device for a tab cutter of a winding machine according to claim 1, characterized in that: The selection component includes a driving groove (61) opened on the surface of the driving rod (52), a plurality of driving teeth (62) are fixedly connected inside the driving groove (61), and the driving teeth (62) are evenly fixed inside the driving groove (61) and are in a ring array. The positioning rod (53) is slidably connected to the selection rod (63), and the surface of the selection rod (63) is fixedly connected to the selection teeth (64). The selection teeth (64) and the driving teeth (62) are respectively in the shape of a pawl and a ratchet tooth, and the two are adapted to each other. There is a partial overlap between the width of the driving teeth (62) and the sliding range of the selection rod (63).

3. The front and rear positioning device for a tab cutter of a winding machine according to claim 2, characterized in that: A rotation groove (65) is provided on the surface of the positioning rod (53), a rotation spring (66) is fixedly connected inside the rotation groove (65), the other end of the rotation spring (66) is in contact with the surface of the selection tooth (64), a selection block (67) is fixedly connected inside the winding frame (1), the selection block (67) is slidably connected to the selection rod (63), and the horizontal section of the selection block (67) decreases in size toward the winding groove (2).

4. The front and rear positioning device for a tab cutter of a winding machine according to claim 1, characterized in that: The driving block (51), the driving rod (52) and the positioning rod (53) are all threadedly connected to a fixing rod (71); one end of the fixing rod (71) facing the contact block (58) is conical; the driving block (51), the driving rod (52) and the positioning rod (53) are all provided with a fixing groove (72); the fixing groove (72) is slidably connected to the fixing block (73).

5. The front and rear positioning device for a tab cutter of a winding machine according to claim 4, characterized in that: A fixing spring (74) is fixedly connected between the fixing blocks (73), one end of the fixing block (73) close to the fixing rod (71) is in an arc shape, and an insertion groove (75) is provided inside the contact block (58), and the insertion groove (75) is adapted to the fixing block (73).

6. The front and rear positioning device for a tab cutter of a winding machine according to claim 1, characterized in that: One end of the threaded rod (59) close to the winding groove (2) is fixedly connected with a reversing cone wheel (81), and the reversing cone wheels (81) in the two positioning mechanisms are meshed with each other.

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