Coating die head with adjustable coating slit width

Abstract

The utility model provides a coating slit width-adjustable coating die head which comprises a gasket, a width limiting sliding block, a miniature linear servo electric cylinder, a connecting rod, an upper die head and a lower die head, and the gasket, the width limiting sliding block, the upper die head and the lower die head define a coating slit; fixing frames are arranged on the two end faces of the lower die head respectively, one end of each miniature linear servo electric cylinder is fixed to the corresponding fixing frame, the output end of the other end of each miniature linear servo electric cylinder is fixedly connected with a width limiting sliding block through a connecting rod, and the width limiting sliding blocks are in sliding connection with gaskets. According to the coating die head capable of adjusting the width of the coating slit, the width of the coating slit can be adjusted through the width limiting sliding block, a gasket does not need to be integrally replaced, the production efficiency is improved, the production cost is reduced, and the production cost is reduced. And due to the design of the pulling strip, the slit width of the coating die head can be adjusted without completely detaching the upper die head of the coating die head, so that time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coating, specifically, relate to a coating die head of adjustable coating slit width. BACKGROUND

[0002] At present, the opening width of the traditional extrusion coating die pad is fixed in the use process, and the coating width must be an integer multiple of the pole cutting width + the width of the two side materials during gap coating. Since the pole cutting widths of different models are different, the fixed width pad has a narrow application range. In actual production and application, the pad of the corresponding width must be replaced every time a model is switched, so the design of the traditional pad has poor battery compatibility for different coating width requirements. When the coating model is switched, different width pads need to be switched, resulting in a large amount of slurry waste and low production efficiency.

[0003] The improvement of the prior art on the traditional pad is mainly to design an integral pad into an adjustable pad. For example, patent CN218835008U, an adjustable extrusion coating pad, adjusts the coating width by adjusting the position of the width-limiting slider on the sliding rod when the pad is used. After the width-limiting arm of the traditional pad is changed into a combination structure of a width-limiting slider and a sliding rod, the width can be adjusted and adapted according to the coating requirements of different models. Although this design does not require the replacement of the entire pad, the structure of the width-limiting slider needs to be loosened and the upper die removed before adjustment can be performed. The adjustment process requires time to disassemble the upper die, which is time-consuming.

[0004] Therefore, how to design a coating die head with adjustable coating pad width, simple adjustment method, high adjustment precision, and time saving is a problem to be solved by the technical personnel in the field. SUMMARY

[0005] To solve the above problems, the purpose of the embodiments of the utility model is to provide a coating die head with adjustable coating slit width.

[0006] The utility model embodiment provides a kind of coating die head of adjustable coating slit width, including pad, width-limiting slider, micro linear servo cylinder, connecting rod, upper die, lower die, pad, width-limiting slider, upper die and lower die are enclosed and form coating slit;

[0007] The two end faces of the lower die are respectively provided with a fixed frame, one end of the micro linear servo cylinder is fixed on the fixed frame, the other end output end of the micro linear servo cylinder is fixedly connected with the width-limiting slider through the connecting rod, and the width-limiting slider is slidably connected with the pad. The position of the width-limiting slider on the pad will change under the action of the micro linear servo cylinder, so as to adjust the width of the coating slit.

[0008] Further, the gasket comprises a gasket base, two gasket side plates fixedly arranged at two ends of the gasket base in the length direction and perpendicular to the gasket base, guide holes respectively formed in the gasket side plates, and first and second limiting strips respectively fixedly arranged on the gasket side plates and symmetrically arranged about the guide holes and perpendicular to the gasket side plates, wherein the first and second limiting strips on different gasket side plates are both directed to the middle part of the gasket base.

[0009] Further, the width of the recess on the flow blocking part matches the width of the first and second limiting strips.

[0010] Further, the position where the pulling strip is fixedly connected to the side edge of the flow blocking part is located at the middle part of the side edge of the flow blocking part.

[0011] Further, the width of the pulling strip matches the guide groove formed between the first and second limiting strips, the thickness of the flow blocking part matches the thickness of the gasket, and the thickness of the pulling strip is smaller than the thickness of the gasket and matches the thickness of the guide hole.

[0012] Further, the fixing frame comprises a placing part and a clamping part, one end of the micro linear servo cylinder is placed in the placing part, and then the micro linear servo cylinder is fixed to the fixing frame through the clamping part and a screw, and the output end of the micro linear servo cylinder is threadedly connected to one end of the connecting rod.

[0013] Further, the other end of the connecting rod is provided with a mounting groove, the width of the mounting groove matches the thickness of the pulling strip, and the connecting rod is further provided with a recess and a screw hole for fixing the connecting rod and the pulling strip through a screw.

[0014] The application has the following beneficial effects:

[0015] 1. The structure of the application is reasonable, the width of the coating gap can be adjusted through the width-limiting slider, the gasket does not need to be replaced as a whole, the production efficiency is improved, the production cost is reduced, and the design of the pulling strip can adjust the width of the gap of the coating die without completely disassembling the upper die of the coating die, thereby saving time and effort.

[0016] The design that the pulling strip is located at the middle part of the flow blocking part can avoid the problem that the width-limiting slider is inclined due to uneven force when the width-limiting slider is driven to move, thereby improving the accuracy of adjustment.

[0017] 3. The use of the micro linear servo cylinder can improve the accuracy and speed of the coating gap adjustment, and is also labor-saving for the operator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a partial planar structure for practical applications;

[0020] Figure 2 This is a three-dimensional structural diagram of the practical gasket;

[0021] Figure 3 This is a three-dimensional structural diagram of this practical width-limiting slider;

[0022] Figure 4 This is a three-dimensional structural diagram of the practical shim and the width-limiting slider in action;

[0023] Figure 5 This is a three-dimensional structural diagram of the practical connecting rod;

[0024] Figure 6 This is a three-dimensional structural diagram of the mounting bracket and miniature linear servo electric cylinder of this practical device;

[0025] Figure 7 This is a three-dimensional structural diagram of this practical fixing frame.

[0026] Figure label:

[0027] 1. Gasket; 11. Gasket base; 12. Gasket side plate; 121. Guide hole; 13. First limiting strip; 14. Second limiting strip; 2. Width limiting slider; 21. Baffle part; 211. Groove; 22. Pulling strip; 221. Mounting hole; 3. Fixing bracket; 31. Placement part; 32. Tightening part; 4. Miniature linear servo cylinder; 5. Connecting rod; 51. Mounting groove; 52. Countersunk groove; 53. Screw hole.

[0028] 6. Upper mold head; 7. Lower mold head. Detailed Implementation

[0029] In the description of the present utility model, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0030] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In the present utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] At present, the opening width of the traditional extrusion coating die gasket is fixed during the use of the coating die. When gap coating, the coating width must be an integer multiple of the pole piece slitting width + the width of the two side edges. Since the slitting width of different models of pole pieces is not the same, the fixed width gasket has a narrow application range. In actual production and application, each time a model is switched, the corresponding width gasket must be replaced, so the design of the traditional gasket has poor compatibility for batteries with different coating width requirements. When the coating model is switched, different width gaskets need to be switched, resulting in a large amount of slurry waste and low production efficiency.

[0033] Based on this, this application proposes a coating die head with adjustable slit width. The slit width can be adjusted via a width-limiting slider without replacing the entire shim. Furthermore, a miniature linear servo cylinder is used in conjunction with it. During adjustment, simply loosen the bolts securing the upper and lower dies, then activate the miniature linear servo cylinder to control the movement of the width-limiting slider. The connection between the miniature linear servo cylinder and the width-limiting slider is located in the middle of the slider, ensuring uniform force distribution during operation. The use of the miniature linear servo cylinder improves both adjustment accuracy and speed.

[0034] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and embodiments. Example

[0035] See Figure 1 The schematic diagram of the partial planar structure of this utility model is shown below. Figure 4 The diagram shows a three-dimensional structure of a gasket and a width-limiting slider in cooperation. A coating die head with adjustable coating slit width includes a gasket 1, a width-limiting slider 2, a miniature linear servo cylinder 4, a connecting rod 5, an upper die head 6, and a lower die head 7. The gasket 1, the width-limiting slider 2, the upper die head 6, and the lower die head 7 surround each other to form a coating slit.

[0036] The lower die head 7 has a fixed frame 3 on each of its two ends. One end of the micro linear servo cylinder 4 is fixed on the fixed frame 3. The output end of the other end of the micro linear servo cylinder 4 is fixedly connected to the width limiting slider 2 through the connecting rod 5. The width limiting slider 2 is slidably connected to the shim 1. Under the action of the micro linear servo cylinder 4, the position of the width limiting slider 2 on the shim 1 will change, thereby adjusting the width of the coating slit.

[0037] In one implementation, see Figure 2 The diagram shows a three-dimensional structure of the gasket. The gasket 1 includes a gasket base 11 and two gasket side plates 12. The gasket side plates 12 are fixedly disposed at both ends of the gasket base 11 along its length and perpendicular to the gasket base 11. Guide holes 121 are respectively provided on the gasket side plates 12. A first limiting strip 13 and a second limiting strip 14 are also fixedly disposed on the gasket side plates 12. The first limiting strip 13 and the second limiting strip 14 are symmetrically arranged about the guide holes 121 and are perpendicular to the gasket side plates 12. The first limiting strip 13 and the second limiting strip 14 located on different gasket side plates 12 all face the middle part of the gasket base 11.

[0038] In one implementation, see Figure 3The schematic diagram of the three-dimensional structure of the width-limiting slider is shown. The width-limiting slider 2 comprises a flow-blocking part 21 and a pulling bar 22. One end of the pulling bar 22 is fixedly connected to the side edge of the flow-blocking part 21, and the other end of the pulling bar 22 is provided with a mounting hole 221. The pulling bar 22 passes through the guide hole 121 and cooperates with the guide hole 121. The flow-blocking part 21 is provided with a groove 211 symmetrically about the pulling bar 22. The width of the groove 211 on the flow-blocking part 21 matches the width of the first limiting strip 13 and the second limiting strip 14, respectively.

[0039] In one embodiment, the position where the pulling bar 22 is fixedly connected to the side edge of the flow-blocking part 21 is located at the middle part of the side edge of the flow-blocking part 21.

[0040] In one embodiment, the width of the pulling bar 22 matches the width of the guide groove formed between the first limiting strip 13 and the second limiting strip 14. The thickness of the flow-blocking part 21 is consistent with the thickness of the gasket 1. The thickness of the pulling bar 22 is smaller than the thickness of the gasket 1 and consistent with the thickness of the guide hole 121.

[0041] In one embodiment, referring to Figure 5 The schematic diagram of the three-dimensional structure of the connecting rod is shown. Referring to Figure 6 The schematic diagram of the three-dimensional structure of the mounting of the fixed frame and the micro linear servo cylinder is shown. Referring to Figure 7 The schematic diagram of the three-dimensional structure of the fixed frame is shown. The fixed frame 3 comprises a placing part 31 and a clamping part 32. One end of the micro linear servo cylinder 4 is placed in the placing part 31, and then the micro linear servo cylinder 4 is fixed to the fixed frame 3 through the clamping part 32 and a screw. The other end of the micro linear servo cylinder 4 is threadedly connected to one end of the connecting rod 5. The other end of the connecting rod 5 is provided with a mounting groove 51. The width of the mounting groove 51 matches the thickness of the pulling bar 22. The connecting rod 5 is further provided with a recess 52 and a screw hole 53, which are used to fixedly connect the connecting rod 5 and the pulling bar 22 through a screw.

[0042] The coating die provided by the above embodiment is assembled as follows. First, the width-limiting slider 2 is mounted on the gasket 1. Then, the gasket 1 and the width-limiting slider 2 are placed on the lower die 7. Then, the upper die 6 is placed on the gasket 1 and the width-limiting slider 2. A plurality of screws are used to preliminarily position the upper die 6, the gasket 1 and the lower die 7. Then, the fixed frame 3, the micro linear servo cylinder 4 and the connecting rod 5 are assembled. The mounting groove 51 of the connecting rod 5 is matched with the pulling bar 22. Then, the screw is tightened to fix the pulling bar 22 to the connecting rod 5. After that, the fixed frame 3 is mounted on the lower die 7. According to the required width, the width-limiting slider 2 is moved by the micro linear servo cylinder 4, so as to change the slit width of the coating die. After adjustment, the screws between the upper die 6 and the lower die 7 are tightened.

[0043] When the width of the coating slot needs to be adjusted, the bolts between the upper die head 6 and the lower die head 7 are loosened, then the width limiting slider 2 is controlled to move by the micro linear servo cylinder 4 to adjust the width of the coating slot of the coating die head, and after the adjustment, the bolts between the upper die head 6 and the lower die head 7 are tightened again.

[0044] In summary, the embodiment of the present application provides a coating die head with adjustable coating slot width, the width of the coating slot can be adjusted by the width limiting slider, and the gasket does not need to be replaced as a whole; moreover, the micro linear servo cylinder is used in cooperation, only the bolts for fixing the upper and lower die heads need to be loosened when adjusting, then the width limiting slider is controlled to move by the micro linear servo cylinder; and the connecting part of the micro linear servo cylinder and the width limiting slider is located at the middle part of the width limiting slider, so that the width limiting slider is uniformly stressed when being driven; the use of the micro linear servo cylinder can improve the adjustment accuracy and the adjustment speed.

[0045] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changed or replaced technical solutions within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A coating die with adjustable slit width, characterized in that: The coating slit is formed by the gasket (1), the width limiting slider (2), the miniature linear servo cylinder (4), the connecting rod (5), the upper die head (6), and the lower die head (7). The two ends of the lower die head (7) are respectively provided with a fixed frame (3). One end of the micro linear servo cylinder (4) is fixed on the fixed frame (3). The other end of the micro linear servo cylinder (4) is fixedly connected to the width limiting slider (2) through the connecting rod (5). The width limiting slider (2) is slidably connected to the pad (1). Under the action of the micro linear servo cylinder (4), the position of the width limiting slider (2) on the pad (1) will change, thereby adjusting the width of the coating slit.

2. The coating die head with adjustable coating slit width according to claim 1, characterized in that: The gasket (1) includes a gasket base (11) and a gasket side plate (12). There are two gasket side plates (12). The gasket side plates (12) are fixedly disposed at both ends of the length direction of the gasket base (11) and perpendicular to the gasket base (11). Guide holes (121) are respectively opened on the gasket side plates (12). A first limiting strip (13) and a second limiting strip (14) are also fixedly disposed on the gasket side plates (12). The first limiting strip (13) and the second limiting strip (14) are symmetrically disposed about the guide holes (121) and perpendicular to the gasket side plates (12). The first limiting strip (13) and the second limiting strip (14) located on different gasket side plates (12) are all facing the middle part of the gasket base (11).

3. The coating die head with adjustable coating slit width according to claim 2, characterized in that: The width limiting slider (2) includes a flow-blocking part (21) and a pull bar (22). One end of the pull bar (22) is fixedly connected to the side of the flow-blocking part (21), and the other end of the pull bar (22) is provided with a mounting hole (221). The pull bar (22) passes through the guide hole (121) and cooperates with it. The flow-blocking part (21) is provided with grooves (211) symmetrically about the pull bar (22). The width of the grooves (211) on the flow-blocking part (21) matches the width of the first limiting bar (13) and the second limiting bar (14) respectively.

4. The coating die head with adjustable coating slit width according to claim 3, characterized in that: The position where the pull bar (22) is fixedly connected to the side of the baffle (21) is located in the middle part of the side of the baffle (21).

5. The coating die head with adjustable coating slit width according to claim 4, characterized in that: The width of the pull bar (22) matches the guide groove formed between the first limiting bar (13) and the second limiting bar (14). The thickness of the baffle (21) is consistent with the thickness of the gasket (1). The thickness of the pull bar (22) is less than the thickness of the gasket (1) and consistent with the thickness of the guide hole (121).

6. The coating die head with adjustable coating slit width according to claim 1, characterized in that: The mounting bracket (3) includes a placement part (31) and a cover part (32). One end of the miniature linear servo cylinder (4) is placed in the placement part (31) and then fixed to the mounting bracket (3) by the cover part (32) and screws. The output end of the miniature linear servo cylinder (4) is threadedly connected to one end of the connecting rod (5).

7. The coating die head with adjustable coating slit width according to claim 1, characterized in that: The other end of the connecting rod (5) is provided with a mounting groove (51), the width of which matches the thickness of the pull bar (22). The connecting rod (5) is also provided with a countersunk groove (52) and a screw hole (53) for fixing the connecting rod (5) and the pull bar (22) together with screws.

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