Coating die head of coating machine and coating machine

Abstract

The utility model discloses a coating die head of a coating machine and the coating machine. Through the coordinated arrangement of an upper die head, a lower die head, a plurality of upper die head adjusting mechanisms, a plurality of lower die head adjusting mechanisms and a coating slurry feeding pipe, the coating slurry is made to flow out from a slurry outlet gap through a storage tank through the coating slurry feeding pipe. When the outflow of the slurry needs to be increased, the upper die head adjusting mechanism or the lower die head adjusting mechanism controls the die lip of the upper die head or the die lip of the lower die head to deform, thereby increasing the opening and closing angles of the die lip of the upper die head and the die lip of the lower die head, thereby increasing the outflow of the slurry, thereby increasing the coating thickness. One device can meet the coating requirements of different thicknesses, effectively reducing costs and also increasing work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a coating die head of a coating machine and a coating machine. Background Art

[0002] Coating machines are mainly used for surface coating production of films, paper, etc. This machine coats the rolled substrate with a layer of glue, paint or ink with specific functions, and then cuts it into sheets or rolls it up after drying.

[0003] In the battery manufacturing industry, especially in the field of lithium-ion power batteries for new energy vehicles and energy storage, there are different requirements for the thickness of the coating slurry for different pole pieces. However, the current coating die can only meet the thickness of the coating slurry for one pole piece. When different coating slurry coating thicknesses are required, different coating dies and coating machines need to be replaced, which reduces the coating efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a coating die head of a coating machine and a coating machine, which can adjust the size of the slurry discharge gap, and then adjust the coating slurry discharge amount to meet the requirements of different coating thicknesses.

[0005] A coating die of a coating machine, comprising an upper die, a lower die, a plurality of upper die adjustment mechanisms, a plurality of lower die adjustment mechanisms, and a coating slurry feeding pipe, wherein a slurry discharge gap is formed between an upper die lip and a lower die lip after the upper die and the lower die are closed, the plurality of upper die adjustment mechanisms are mounted on the upper die and used to adjust the opening and closing angles of the upper die lip and the lower die lip, a first notch is formed at one end of the bottom of the upper die near the upper die lip, and one end of the upper die adjustment mechanism is accommodated in the first notch;

[0006] The multiple lower die head adjustment mechanisms are installed on the lower die head, and are used to adjust the opening and closing angles of the lower die lip and the upper die lip. A second notch is provided at one end of the bottom of the lower die head close to the lower die lip, and one end of the lower die head adjustment mechanism is accommodated in the second notch. A material storage tank is provided on the lower die head, and the coating slurry feed pipe is inserted into the lower die head adjustment mechanism and is connected to the material storage tank through a pipeline of the lower die head adjustment mechanism.

[0007] In one embodiment, the upper die head adjustment mechanism includes a first cylinder mounting seat, a first electric cylinder, a first telescopic rod and a first abutment block, the first cylinder mounting seat is mounted on the upper die head, the first electric cylinder is mounted on the first cylinder mounting seat, one end of the first telescopic rod is fixedly connected to the first electric cylinder, the other end of the first telescopic rod is fixedly connected to the first abutment block, and the first abutment block is accommodated in the first notch.

[0008] In one embodiment, the lower die head adjustment mechanism includes a second cylinder mounting seat, a second electric cylinder, a second telescopic rod and a second abutment block, the second cylinder mounting seat is mounted on the lower die head, the second electric cylinder is mounted on the second cylinder mounting seat, one end of the second telescopic rod is fixedly connected to the second electric cylinder, the other end of the second telescopic rod is fixedly connected to the second abutment block, and the second abutment block passes through the second notch and is fixedly connected to one end of the lower die head close to the die lip.

[0009] In one embodiment, the coating die head also includes a glue dispensing structure, which includes a glue dispensing component and a glue coating plate, the glue coating plate has a glue coating groove, the glue coating plate is accommodated in the slurry outlet gap, the glue dispensing component is fixedly mounted on the upper die head and the glue outlet is connected to the glue coating groove.

[0010] In one embodiment, the glue dispensing assembly includes a third cylinder mounting seat, a third cylinder, a reflux valve mounting seat, a guide sleeve mounting seat, a reflux valve guide sleeve, a reflux valve guide rod, an air inlet joint and a glue inlet joint, the third cylinder is mounted on the third cylinder mounting seat, one end of the guide sleeve mounting seat is mounted on the third cylinder mounting seat and is connected to the third cylinder mounting seat, the other end of the guide sleeve mounting seat is fixedly connected to the reflux valve mounting seat and is connected to the reflux valve mounting seat, the reflux valve mounting seat A glue flow port is provided at one end of the seat close to the upper die head, the reflux valve guide sleeve is installed in the guide sleeve mounting seat, one end of the reflux valve guide rod is installed on the third cylinder, and the other end is passed through the reflux valve guide sleeve, the reflux valve guide rod is driven by the third cylinder to abut or separate from the glue flow port, the air inlet joint is connected to the third cylinder, the glue inlet joint is connected to the reflux valve mounting seat, and the glue flow port is connected to the glue coating groove through the pipeline on the upper die head.

[0011] In one of the embodiments, the glue dispensing assembly further includes a sealing member, and the sealing member is sleeved on one end of the return valve guide rod close to the glue flow port.

[0012] In one embodiment, the glue coating groove includes a first glue inlet groove, a second glue flow groove and a glue outlet groove, the first glue inlet groove is connected to the glue flow port, and the second glue flow groove is connected to the first glue inlet groove and the glue outlet groove respectively.

[0013] In one of the embodiments, the glue dispensing structure further includes a glue coating plate fixing part, the glue coating plate fixing part is mounted on the upper die head, and one end of the glue coating plate is fixed on the glue coating plate fixing part.

[0014] A coating machine comprises the coating die head.

[0015] The coating die of the above-mentioned coating machine is arranged in coordination with an upper die, a lower die, multiple upper die adjustment mechanisms, multiple lower die adjustment mechanisms, and a coating slurry feed pipe. The coating slurry flows out from the slurry outlet gap through a storage tank through the coating slurry feed pipe. When the outflow of the slurry needs to be increased, the upper die adjustment mechanism or the lower die adjustment mechanism controls the die lip of the upper die or the die lip of the lower die to deform, thereby increasing the opening and closing angles of the die lip of the upper die and the die lip of the lower die, thereby increasing the outflow of the slurry, thereby increasing the coating thickness. One device can meet the coating requirements of different thicknesses, effectively reducing costs while also increasing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the assembly structure of a coating die head of a coating machine according to one embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic cross-sectional view of a coating die head of a coating machine according to an embodiment of the present invention;

[0018] Figure 3 for Figure 1 A schematic diagram of the assembly structure of an upper die head adjustment mechanism of a coating die head of a coating machine according to an embodiment of the utility model;

[0019] Figure 4 for Figure 1 A schematic cross-sectional view of an upper die head adjustment mechanism of a coating die head of a coating machine according to an embodiment of the present invention;

[0020] Figure 5 for Figure 1 A schematic structural diagram of a lower die head adjustment mechanism of a coating die head of a coating machine according to an embodiment of the utility model;

[0021] Figure 6 for Figure 1 A schematic structural diagram of a dispensing structure of a coating die head of a coating machine according to an embodiment of the utility model;

[0022] Figure 7 for Figure 6 A schematic structural diagram of a dispensing assembly of a coating die head of a coating machine according to an embodiment of the utility model;

[0023] Figure 8 for Figure 1 A schematic structural diagram of a glue coating groove of a coating die head of a coating machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] like Figure 1 and Figure 2 As shown, a coating die of a coating machine comprises an upper die 1, a lower die 2, a plurality of upper die adjustment mechanisms 3, a plurality of lower die adjustment mechanisms 4, and a coating slurry feeding pipe 5. After the upper die 1 and the lower die 2 are molded together, a slurry outlet gap 6 is formed between the upper die lip 11 and the lower die lip 21. The plurality of upper die adjustment mechanisms 3 are installed on the upper die 1 to adjust the opening and closing angles of the upper die lip 11 and the lower die lip 21. A first notch 12 is formed at one end of the bottom of the upper die 1 close to the upper die lip 11, and one end of the upper die adjustment mechanism 3 is accommodated in the first notch 12.

[0028] The multiple lower die head adjustment mechanisms 4 are installed on the lower die head 2, and are used to adjust the opening and closing angles of the lower die lip 21 and the upper die lip 11. A second notch 22 is provided at one end of the bottom of the lower die head 2 close to the lower die lip 21, and one end of the lower die head adjustment mechanism 4 is accommodated in the second notch 22. The lower die head 2 is provided with a material storage tank 23, and the coating slurry feed pipe 5 is inserted into the lower die head adjustment mechanism 4, and is connected to the material storage tank 23 through a pipeline of the lower die head adjustment mechanism 4.

[0029] The upper die head adjustment mechanism 3 includes a first cylinder mounting seat 31, a first electric cylinder 32, a first telescopic rod 33 and a first abutment block 34. The first cylinder mounting seat 31 is installed on the upper die head 1, and the first electric cylinder 32 is installed on the first cylinder mounting seat 31. One end of the first telescopic rod 33 is fixedly connected to the first electric cylinder 32, and the other end of the first telescopic rod 33 is fixedly connected to the first abutment block 34. The first abutment block 34 is accommodated in the first notch 12.

[0030] The lower die head adjustment mechanism 4 includes a second cylinder mounting seat 41, a second electric cylinder 42, a second telescopic rod 43 and a second abutment block 44. The second cylinder mounting seat 41 is installed on the lower die head 2, the second electric cylinder 42 is installed on the second cylinder mounting seat 41, one end of the second telescopic rod 43 is fixedly connected to the second electric cylinder 42, the other end of the second telescopic rod 43 is fixedly connected to the second abutment block 44, and the second abutment block 44 passes through the second notch 22 and is fixedly connected to one end of the lower die head 2 close to the die lip.

[0031] The first notch 12 can be set to a structure with a larger bottom and a smaller top, and the first abutment block 34 is accommodated at the bottom of the first notch 12. The coating slurry feed pipe 5 is used to pass the external coating slurry into the storage tank 23 through the pipeline of the lower die head adjustment mechanism 4, and the coating slurry flows into the electrode to be coated from the slurry outlet gap 6 between the upper die lip 11 and the lower die lip 21 through the storage tank 23, thereby completing the coating of the electrode.

[0032] When it is necessary to adjust the opening and closing angle between the upper die lip 11 and the lower die lip 21 .

[0033] Method 1, start the first electric cylinder 32, the first electric cylinder 32 pulls the first abutment block 34 to move away from the lower die head 2 through the first telescopic rod 33, and the first abutment block 34 causes the first notch 12 to deform during the movement, thereby causing the upper die lip 11 to tilt upward, increasing the opening and closing degree between the upper die lip 11 and the lower die lip 21, increasing the slurry discharge gap 6, and increasing the slurry discharge amount.

[0034] Method 2, start the second electric cylinder 42, the second electric cylinder 42 pulls the second abutment block 44 to move away from the lower die lip 21 of the lower die head 2 through the second telescopic rod 43, and the second abutment block 44 causes the second notch 22 to deform during the movement, thereby causing the lower die lip 21 to tilt downward, thereby increasing the opening and closing degree between the lower die lip 21 and the upper die lip 11, increasing the slurry discharge gap 6, and increasing the slurry discharge amount.

[0035] In this way, the coating die of the coating machine is arranged in coordination with the upper die 1, the lower die 2, multiple upper die adjustment mechanisms 3, multiple lower die adjustment mechanisms 4, and a coating slurry feed pipe 5. The coating slurry is discharged from the slurry outlet gap through the storage tank 23 through the coating slurry feed pipe. When the outflow of the slurry needs to be increased, the upper die adjustment mechanism 3 or the lower die adjustment mechanism 4 controls the die lip 11 of the upper die 1 or the die lip 21 of the lower die 2 to deform, thereby increasing the opening and closing angles of the die lip 11 of the upper die 1 and the die lip 21 of the lower die 2, thereby increasing the outflow of the slurry, thereby increasing the coating thickness. One device can meet the coating requirements of different thicknesses, effectively reducing costs while also increasing work efficiency.

[0036] like Figure 6 As shown, in one embodiment, the coating die head also includes a glue dispensing structure 7, the glue dispensing structure includes a glue dispensing component 71 and a glue coating plate 72, the glue coating plate 72 has a glue coating groove 721, the glue coating plate 72 is accommodated in the slurry outlet gap 6, the glue dispensing component 71 is fixedly mounted on the upper die head 1 and the glue outlet is connected to the glue coating groove 721.

[0037] like Figure 7 As shown, the glue dispensing assembly 71 includes a third cylinder mounting seat 711, a third cylinder 712, a reflux valve mounting seat 713, a guide sleeve mounting seat 714, a reflux valve guide sleeve 715, a reflux valve guide rod 716, an air inlet joint 717 and a glue inlet joint 718, the third cylinder 712 is mounted on the third cylinder mounting seat 711, one end of the guide sleeve mounting seat 714 is mounted on the third cylinder mounting seat 711 and is connected to the third cylinder mounting seat 711, the other end of the guide sleeve mounting seat 714 is fixedly connected to the reflux valve mounting seat 713 and is connected to the reflux valve mounting seat 713, the reflux valve mounting seat 713 is provided with a glue flow port 7131 at one end close to the upper die head 1, and the reflux valve guide sleeve 715 is mounted on In the guide sleeve mounting seat 714, one end of the reflux valve guide rod 716 is mounted on the third cylinder 712, and the other end is inserted into the reflux valve guide sleeve 715, and the third cylinder 712 drives the reflux valve guide rod 716 to abut or separate from the glue flow port 7131, the air inlet joint 717 is connected to the third cylinder 712, the glue inlet joint 718 is connected to the reflux valve mounting seat 713, and the glue flow port 7131 is connected to the glue coating groove 721 through the pipeline 13 on the upper die head 1; the glue dispensing structure 7 also includes a glue coating plate fixing part 73, the glue coating plate fixing part 73 is installed on the upper die head 1, and one end of the glue coating plate 72 is fixed on the glue coating plate fixing part 73; Figure 8As shown, the glue coating groove 721 includes a first glue inlet groove 7211, a second glue flow groove 7212 and a glue outlet groove 7213. The first glue inlet groove 7211 is connected to the glue flow port 7131, and the second glue flow groove 7212 is connected to the first glue inlet groove 7211 and the glue outlet groove 7213 respectively.

[0038] After the electrode coating is completed, the electrode needs to be glued and sealed. One end of the glue coating plate 72 is fixed on the glue coating plate fixing member 73, so that the glue coating plate 72 is placed in the slurry outlet gap 6. The glue inlet joint 718 is connected to the external glue storage barrel, and the glue enters the return valve mounting seat 713 through the glue inlet joint 718 through the external pressure, and then enters the pipeline of the upper die head 1 from the glue flow port 7131 of the return valve mounting seat 713, and then the glue enters the first glue inlet groove 7211. The first glue inlet groove 7211 is formed by the glue coating plate 72 and the lower die head 2. The glue enters the second glue flow groove 7212 through the first glue inlet groove 7211. The second glue flow groove 7212 is formed by the glue coating plate 72 and the upper die head 1. The glue enters the glue outlet groove 7213 through the second glue flow groove 7212, and the glue flows out from the glue outlet groove 7213 to seal the coated electrode.

[0039] The air inlet connector 717 delivers the gas to the third cylinder 712. The third cylinder 712 controls the reflux valve guide rod 716 to pass through the reflux valve guide sleeve 715 and the guide sleeve mounting seat 714 in sequence and move toward the glue flow port 7131 of the reflux valve mounting seat 713. If the reflux valve guide rod 716 is completely in contact with the glue flow port 7131, the colloid cannot flow into the first glue inlet groove 7211. The amount of colloid discharged is controlled by the sealing condition of the reflux valve guide rod 716 and the glue flow port 7131 to adapt to the requirements of different electrodes for the amount of glue required for sealing.

[0040] In one embodiment, the glue dispensing assembly 71 further includes a sealing member 719 , and the sealing member 719 is sleeved on one end of the reflux valve guide rod 716 close to the glue flow port 7131 .

[0041] In this way, the sealing member 719 is made of a soft material, and when the sealing member 719 abuts against the glue flow opening 7131 , the glue flow opening 7131 can be better sealed.

[0042] A coating machine comprises the coating die head.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A coating die head of a coating machine, characterized in that: The invention comprises an upper die head, a lower die head, a plurality of upper die head adjustment mechanisms, a plurality of lower die head adjustment mechanisms, and a coating slurry feeding pipe. After the upper die head and the lower die head are molded together, a slurry discharge gap is formed between the upper die lip and the lower die lip. The plurality of upper die head adjustment mechanisms are installed on the upper die head and are used to adjust the opening and closing angles of the upper die lip and the lower die lip. A first notch is provided at one end of the bottom of the upper die head close to the upper die lip, and one end of the upper die head adjustment mechanism is accommodated in the first notch. The multiple lower die head adjustment mechanisms are installed on the lower die head, and are used to adjust the opening and closing angles of the lower die lip and the upper die lip. A second notch is provided at one end of the bottom of the lower die head close to the lower die lip, and one end of the lower die head adjustment mechanism is accommodated in the second notch. A material storage tank is provided on the lower die head, and the coating slurry feed pipe is inserted into the lower die head adjustment mechanism and is connected to the material storage tank through a pipeline of the lower die head adjustment mechanism.

2. The coating die head of a coating machine according to claim 1, characterized in that: The upper die head adjustment mechanism includes a first cylinder mounting seat, a first electric cylinder, a first telescopic rod and a first abutment block. The first cylinder mounting seat is installed on the upper die head, the first electric cylinder is installed on the first cylinder mounting seat, one end of the first telescopic rod is fixedly connected to the first electric cylinder, the other end of the first telescopic rod is fixedly connected to the first abutment block, and the first abutment block is accommodated in the first notch.

3. The coating die head of a coating machine according to claim 1, characterized in that: The lower die head adjustment mechanism includes a second cylinder mounting seat, a second electric cylinder, a second telescopic rod and a second abutment block. The second cylinder mounting seat is mounted on the lower die head, the second electric cylinder is mounted on the second cylinder mounting seat, one end of the second telescopic rod is fixedly connected to the second electric cylinder, the other end of the second telescopic rod is fixedly connected to the second abutment block, and the second abutment block passes through the second notch and is fixedly connected to an end of the lower die head close to the die lip.

4. The coating die head of a coating machine according to claim 1, characterized in that: The coating die head also includes a glue dispensing structure, which includes a glue dispensing component and a glue coating plate. The glue coating plate is provided with a glue coating groove. The glue coating plate is accommodated in the slurry outlet gap. The glue dispensing component is fixedly mounted on the upper die head and the glue outlet is connected to the glue coating groove.

5. The coating die head of a coating machine according to claim 4, characterized in that: The dispensing assembly includes a third cylinder mounting seat, a third cylinder, a reflux valve mounting seat, a guide sleeve mounting seat, a reflux valve guide sleeve, a reflux valve guide rod, an air inlet joint and a glue inlet joint. The third cylinder is mounted on the third cylinder mounting seat. One end of the guide sleeve mounting seat is mounted on the third cylinder mounting seat and is connected with the third cylinder mounting seat. The other end of the guide sleeve mounting seat is fixedly connected with the reflux valve mounting seat and is connected with the reflux valve mounting seat. A glue flow port is provided at one end of the reflux valve mounting seat close to the upper die head. The reflux valve guide sleeve is mounted in the guide sleeve mounting seat. One end of the reflux valve guide rod is mounted on the third cylinder, and the other end is penetrated in the reflux valve guide sleeve. The reflux valve guide rod is driven by the third cylinder to abut or separate from the glue flow port. The air inlet joint is connected with the third cylinder. The glue inlet joint is connected with the reflux valve mounting seat. The glue flow port is connected with the glue coating groove through the pipeline on the upper die head.

6. The coating die head of a coating machine according to claim 5, characterized in that: The glue dispensing assembly also includes a sealing member, which is sleeved on one end of the return valve guide rod close to the glue flow port.

7. The coating die head of a coating machine according to claim 6, characterized in that: The glue coating groove includes a first glue inlet groove, a second glue flow groove and a glue outlet groove. The first glue inlet groove is connected to the glue flow port, and the second glue flow groove is connected to the first glue inlet groove and the glue outlet groove respectively.

8. The coating die head of a coating machine according to claim 4, characterized in that: The glue dispensing structure also includes a glue coating plate fixing part, which is installed on the upper die head, and one end of the glue coating plate is fixed on the glue coating plate fixing part.

9. A coating machine, characterized in that: A coating die comprising the coating die according to any one of claims 1 to 8.

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