Double-sided coating assembly, coating shaping mechanism and double-sided coating production line

Abstract

The double-sided coating assembly comprises an upper positioning roller and a lower positioning roller which are used for fixing materials, two knife rests are oppositely arranged on the two sides, in the thickness direction of the materials, between the upper positioning roller and the lower positioning roller, coating blades are arranged on the knife rests, and the two coating blades are matched to form a large-end-up coating pulp pool; a supporting sliding rail is arranged at the bottom of the tool rest, a locking piece is arranged between the tool rest and the supporting sliding rail, positioning reference blocks are arranged on the two sides in the width direction of the materials, and adjusting parts for adjusting the gap between the coating blade and the materials are arranged on the tool rest positions corresponding to the positioning reference blocks; the invention further discloses a coating shaping mechanism. The double-face coating assembly is erected on the water tank to achieve integration of coating and solidification. And an efficient double-sided coating production line is obtained by adopting the coating shaping mechanism. The coating device can finish coating of two surfaces at the same time, and is convenient to adjust and high in use stability.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy product preparation, and particularly relates to a double-sided coating assembly, a coating shaping mechanism and a double-sided coating production line. Background Art

[0002] In the current market, coating machines are mainly used in the lithium battery industry and the pharmaceutical industry. For the hydrogen energy industry, the key material for electrolytic water hydrogen production is the diaphragm. When the diaphragm is prepared, it is formed by the membrane body plus the coatings on two surfaces. Such diaphragm materials are mostly produced by foreign manufacturers, and their costs are expensive. There are also some foreign manufacturers producing in China. There are few domestic coating machines for hydrogen energy products, and basically all are imported equipment.

[0003] In the existing equipment technology, usually one side is coated first, and after changing the side, another coating head is used to coat the other side. Such a method requires two coating heads and cannot be synchronously completed in one process. The coating efficiency is low, and the coating thickness cannot be guaranteed to be uniform. Moreover, the existing slurry solidification method is not applicable to the electrolytic water diaphragm. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a double-sided coating assembly, a coating shaping mechanism and a double-sided coating production line, which can simultaneously complete the coating of two surfaces, are convenient to adjust, and have high use stability.

[0005] To solve the above technical problem, the present invention provides a double-sided coating assembly, including an upper positioning roller and a lower positioning roller for fixing materials. Two tool holders are oppositely arranged on both sides of the material thickness direction between the upper positioning roller and the lower positioning roller. Coating blades are arranged on the tool holders. The two coating blades cooperate to form a coating slurry pool with a larger upper part and a smaller lower part. A support slide rail is arranged at the bottom of the tool holder. A locking member is arranged between the tool holder and the support slide rail. Positioning reference blocks are arranged on both sides of the material width direction. An adjusting part for adjusting the gap between the coating blade and the material is arranged at the tool holder position corresponding to the positioning reference block.

[0006] Furthermore, it further includes a gantry, and the upper positioning roller, the lower positioning roller, the positioning reference block and the support slide rail are all fixedly arranged on the gantry.

[0007] Furthermore, the adjusting part includes a spiral adjusting rod and a dial indicator, and the ends of the spiral adjusting rod and the dial indicator are both abutted against the positioning reference block.

[0008] Furthermore, a slurry nozzle is arranged on the tool holder, and the slurry nozzle is used for injecting slurry into the coating slurry pool.

[0009] Furthermore, sealing plates are arranged on both sides of the material width direction. Slots are arranged on the two tool holders corresponding to the sealing plates, and the sealing plates are inserted into the slots.

[0010] Further, the tool rest includes two side plates arranged in parallel, one side surface of the side plate facing the material is set as an inclined surface or an arc surface, the end of the coating blade is fixedly connected to the corresponding inclined surface or arc surface, and a pull rod is also arranged between the two side plates.

[0011] A coating and shaping mechanism includes the double-sided coating assembly described in any one of the above and a shaping water tank. The top of the shaping water tank is open and shaping water is arranged inside. The gantry is fixedly installed on the top of the shaping water tank and the lower positioning roller is arranged in the shaping water.

[0012] Further, an outwardly projecting support portion is arranged on the outer side surface of the gantry along the width direction of the material. A reinforcing plate is arranged on the outwardly projecting support portion along the thickness direction of the material. The outwardly projecting support portion and the reinforcing plate are both fixed on the mounting bottom plate, and the mounting bottom plate is fixed on the top of the shaping water tank;

[0013] A liquid discharge port and an overflow port are arranged on the shaping water tank;

[0014] The lower positioning roller is arranged at the bottom of the gantry. A horizontally extending frame is also arranged at the bottom of the gantry. An auxiliary roller is arranged on the horizontally extending frame. A pinch roller assembly is arranged at the top of the side wall of the shaping water tank adjacent to the auxiliary roller.

[0015] A double-sided coating production line adopts the above coating and shaping mechanism, and includes an unwinding mechanism, a coating and shaping mechanism, a rinsing mechanism and a winding mechanism arranged in sequence.

[0016] Further, the unwinding mechanism includes an unwinding base. An unwinding power portion and a first deviation rectifying sensor are arranged on the unwinding base. A first slide rail and a first electric cylinder are arranged between the unwinding power portion and the unwinding base. The first electric cylinder is used to push the unwinding power portion to reciprocate on the unwinding base along the guiding direction of the first slide rail;

[0017] The winding mechanism includes a winding base. A winding power portion and a second deviation rectifying sensor are arranged on the winding base. A second slide rail and a second electric cylinder are arranged between the winding power portion and the winding base. The second electric cylinder is used to push the winding power portion to reciprocate on the winding base along the guiding direction of the second slide rail;

[0018] The rinsing mechanism includes a rinsing water tank. A plurality of lower transition rollers and upper transition rollers are alternately arranged in the rinsing water tank.

[0019] The beneficial effects of the present invention:

[0020] 1. Adopting a double-knife structure, double-sided coating, synchronous coating, meeting the requirements with one coating, and having high coating efficiency;

[0021] 2. Through the settings of the tool rest, positioning reference block, and adjustment part, the coating thickness can be effectively adjusted with good adjustment stability and uniform film thickness, and the thickness error can reach less than 2%;

[0022] 3. Coating is directly carried out on the shaping water tank. After the coating is completed, the solvent in the slurry is directly extracted into the shaping water tank for coagulation and shaping, which is suitable for the slurry coagulation method of electrolytic water diaphragms and has high preparation quality;

[0023] 4. The setting of the gantry enables the double-sided coating assembly to be detachably installed and connected to the shaping water tank, and the positioning of materials is convenient, accurate, and reliable. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the double-sided coating assembly of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the coating part of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the coating adjustment part of the present invention;

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the coating part of the present invention;

[0028] Figure 5 It is a schematic structural diagram of the coating assembly with a gantry structure of the present invention;

[0029] Figure 6 It is a schematic connection structural diagram of the gantry and the coating adjustment part of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the coating shaping mechanism of the present invention;

[0031] Figure 8 It is a schematic cross-sectional structural diagram of the coating shaping mechanism of the present invention;

[0032] Figure 9 It is a schematic connection structural diagram of the gantry and the shaping water tank of the present invention;

[0033] Figure 10 It is a schematic structural diagram of the production line of the present invention;

[0034] Figure 11 It is a schematic partial structural diagram of the unwinding mechanism of the present invention;

[0035] Figure 12 It is a schematic structural diagram of the rinsing mechanism and the winding mechanism parts of the present invention. Detailed Embodiments

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it. However, the embodiments cited do not limit the present invention.

[0037] Referring to Figures 1 to 4 As shown, an embodiment of the double-sided coating assembly of the present invention includes an upper positioning roller 2 and a lower positioning roller 3 for fixing the material 1. The upper positioning roller and the lower positioning roller cooperate to fix the position of the material unchanged, and the material is positioned perpendicular to the horizontal plane. Two tool holders 4 are oppositely arranged on both sides of the material in the thickness direction between the upper positioning roller and the lower positioning roller. Coating blades 5 are arranged on the tool holders. The two coating blades cooperate to form a coating slurry pool 120 that is larger at the top and smaller at the bottom. The material passes through the middle of the coating slurry pool. The coating blades cooperate with the coating to coat the material. A slurry nozzle 13 is arranged on the tool holder. The slurry nozzle is used to inject slurry into the coating slurry pool. A support slide rail 6 is arranged at the bottom of the tool holder. The support slide rail is used to fix the position of the tool holder. The tool holder can move along the guiding direction of the support slide rail. The guiding direction of the support slide rail is perpendicular to the surface of the material. A locking member 7 is arranged between the tool holder and the support slide rail. The locking member can lock the tool holder on the support slide rail. Positioning reference blocks 8 are arranged on both sides of the material in the width direction. An adjusting portion 9 for adjusting the gap between the coating blade and the material is arranged at the corresponding tool holder position of the positioning reference block. The adjusting portion includes a screw adjusting rod 11 and a micrometer 12. The ends of the screw adjusting rod and the micrometer are both abutted against the positioning reference block. The micrometer can read the adjustment dimension data in real time. The screw adjusting rod is convenient for fine adjustment operations.

[0038] During use, first zero-position the two coating blades, abut the two tool holders together, and according to the positioning positions of the upper positioning roller and the lower positioning roller, make the central positions where the two coating blades abut coincide through the screw adjusting rod. At this time, zero the micrometer. Of course, this step can be completed during the assembly and debugging process. After the adjustment is completed, the material can be bypassed from the upper positioning roller, then passed through the two coating blades downward and wound out from the lower positioning roller to realize the tensioning and positioning of the material. Subsequently, calculate the distance that needs to be adjusted according to the size to be coated, move the tool holder by adjusting the screw adjusting rod and observing the micrometer, so that the tool holder moves on the support slide rail. After moving in place, fix the tool holder through the locking member. After the fixing is completed, a gap is formed between the coating blade and the material, that is, the gap to be coated is obtained. Inject slurry into the coating slurry pool through the slurry nozzle. During the downward movement of the material, the slurry will be carried out of the coating slurry pool by the moving material together, realizing the effect of slurry coating.

[0039] Since the above two coating blades respectively form gaps with the material, when it is necessary to coat slurries with different thicknesses on the surface of the material, this structure can also be completed.

[0040] In the above mechanism, the number of support slide rails is 2. The same ends of the two tool holders are arranged on one support slide rail. During adjustment, one tool holder is adjusted twice, that is, the two ends of the tool holder are adjusted respectively, which has a high adjustment accuracy.

[0041] Since the coating slurry tank needs to hold the slurry, in order to avoid the loss of the slurry, sealing plates 14 are provided on both sides in the width direction of the material. The sealing plate can be a rectangular mechanism, and the coating slurry tank has a structure that is larger at the top and smaller at the bottom. Slots are provided on the two tool holders corresponding to the sealing plates, and the sealing plates are inserted into the slots. During the adjustment process of the tool holders, the sealing plates can always be in the slots and there will be no gaps due to the movement of the tool holders, achieving a good sealing effect and ensuring that the slurry will not flow out from the side.

[0042] The above tool holder includes two side plates 15 arranged in parallel. The surface of the side plate facing the material is set as an inclined surface or an arc surface, and the shape of this surface can be determined by the shape of the coating knife. After the coating blade to be coated is installed, a structure that is larger at the top and smaller at the bottom is formed. When the coating blade is a flat structure, it can be an inclined surface. When the coating blade is an arc shape, it can be an arc surface. The end of the coating blade is fixedly connected to the corresponding inclined surface or arc surface. A pull rod 16 is also provided between the two side plates. Thus, the overall structure can be fixed through the fixation of the coating blade and the pull rod, which is stable and reliable.

[0043] Refer to Figure 5 and Figure 6 As shown, it further includes a gantry 10. The upper positioning roller, the lower positioning roller, the positioning reference block, and the support slide rail are all fixedly arranged on the gantry. Through the setting of the gantry, the relative positions of the upper positioning roller, the lower positioning roller, the positioning reference block, and the tool holder can be fixed, which is convenient for the debugging of the equipment.

[0044] Based on the above double-sided coating assembly 111, a coating and shaping mechanism is also disclosed. It includes a shaping water tank 17. The top of the shaping water tank is open and there is shaping water inside. The gantry is erected and fixed on the top of the shaping water tank, and the lower positioning roller is arranged in the shaping water. The setting of the gantry enables the entire double-sided coating assembly to be independently assembled and then installed on the shaping water tank by hoisting, which is convenient for operation. Specifically, a positioning and guiding part 121 can also be arranged inside the shaping water tank. When the gantry is hoisted and placed, the installation position can be quickly and accurately found through the positioning and guiding part, and the positioning and guiding part also plays a limiting role in the horizontal direction of the gantry and can also reinforce the gantry to ensure the stability during use.

[0045] In addition, an outwardly projecting support portion 19 is provided on the outer side of the gantry along the material width direction, and a reinforcing plate 191 is provided on the outwardly projecting support portion along the material thickness direction. The outwardly projecting support portion and the reinforcing plate are both fixed on the mounting bottom plate, and the mounting bottom plate is fixed on the top of the shaping water tank, so that the connection at the mounting position of the gantry is more stable; a drain port 20 and an overflow port 21 are provided on the shaping water tank, and the overflow port ensures the liquid level height in the shaping water tank;

[0046] The above-mentioned lower positioning roller is arranged at the bottom of the gantry, and a horizontal extension frame 22 is also arranged at the bottom of the gantry, and an auxiliary roller 23 is arranged on the horizontal extension frame. A pinch roller assembly 24 is arranged at the top of the side wall of the shaping water tank adjacent to the auxiliary roller. The auxiliary roller can increase the retention time of the coated material in the shaping water tank, thereby ensuring the shaping effect. The setting of the gantry can ensure that the lower positioning roller can meet the material positioning while allowing the material to enter the bottom position of the positioning water tank.

[0047] When the double-sided coating assembly is installed on the positioning water tank, the slurry will fall into the setting water tank and cause pollution when it is cleaned. Therefore, a liquid receiving pan 122 can also be set on the door frame below the knife holder. During the coating process, the liquid receiving pan is set on one side and does not affect the passage of the material. When cleaning is required, the liquid receiving pan is moved to the bottom of the coating slurry pool to receive the waste liquid. Two of the above-mentioned liquid receiving pans can be set, and a supporting beam is set on the side of the door frame. The liquid receiving pan is set on the two beams and fixed by positioning pins. The two liquid receiving pans meet the liquid receiving requirements and are easy to take out from under the knife holder.

[0048] Based on the above coating and shaping mechanism, a double-sided coating production line is also disclosed, which adopts the above coating and shaping mechanism 112, including a reeling mechanism 113, a coating and shaping mechanism, a rinsing mechanism 114 and a reeling mechanism 115 which are arranged in sequence. The reeling mechanism releases the material, and the material is double-sidedly coated by the coating and shaping mechanism and directly enters the shaping water tank for shaping. After shaping, the material enters the rinsing mechanism for rinsing, and after rinsing, enters the reeling mechanism for reeling.

[0049] The above-mentioned unwinding mechanism includes an unwinding base 25, on which an unwinding power unit 26 and a first correction sensor 27 are arranged, and a first slide rail 28 and a first electric cylinder 29 are arranged between the unwinding power unit and the unwinding base. The first correction sensor is used to detect the position of the material after unwinding to prevent deviation. When deviation occurs, the first electric cylinder pushes the unwinding power unit to move on the unwinding base along the guide direction of the first slide rail, thereby adjusting the position of the material after unwinding. The unwinding base can move back and forth to meet the adjustment needs and prevent the material from deviating.

[0050] The above-mentioned rewinding mechanism includes a rewinding base 30, on which a rewinding power unit 31 and a second deviation rectifying sensor 32 are arranged. A second slide rail 33 and a second electric cylinder 34 are arranged between the rewinding power unit and the rewinding base. The second deviation rectifying sensor is used to detect the position of the material before rewinding to prevent deviation. When deviation occurs, the second electric cylinder pushes the rewinding power unit to move on the rewinding base along the guiding direction of the second slide rail, so as to adjust the position of the material after rewinding. The rewinding base can move back and forth to meet the adjustment needs and avoid the material from running off track.

[0051] In the rinsing mechanism, it has a rinsing water tank 35. A plurality of lower transition rollers and upper transition rollers 36 are alternately arranged in the rinsing water tank. The material is arranged in an S shape on the lower transition rollers and the upper transition rollers, so as to increase the rinsing length distance within a limited length space and improve the rinsing effect.

[0052] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A double-sided coating assembly, characterized in that, It includes an upper positioning roller and a lower positioning roller for fixing materials. On both sides along the thickness direction of the material between the upper positioning roller and the lower positioning roller, two tool holders are oppositely arranged. Coating blades are arranged on the tool holders. The two coating blades cooperate to form a coating slurry pool with a larger upper part and a smaller lower part. A support slide rail is arranged at the bottom of the tool holder. A locking member is arranged between the tool holder and the support slide rail. Positioning reference blocks are arranged on both sides along the width direction of the material. An adjusting part for adjusting the gap between the coating blade and the material is arranged at the position of the tool holder corresponding to the positioning reference block.

2. The double-sided coating assembly according to claim 1, characterized in that It further includes a gantry. The upper positioning roller, the lower positioning roller, the positioning reference block and the support slide rail are all fixedly arranged on the gantry.

3. The double-sided coating assembly according to claim 1, characterized in that, The adjusting part includes a screw adjusting rod and a micrometer. The ends of the screw adjusting rod and the micrometer are both abutted against the positioning reference block.

4. The double-sided coating assembly according to claim 1, wherein A slurry nozzle is arranged on the tool holder. The slurry nozzle is used for injecting slurry into the coating slurry pool.

5. The double-sided coating assembly according to claim 1, wherein Sealing plates are arranged on both sides along the width direction of the material. Slots are arranged on the two tool holders corresponding to the sealing plates. The sealing plates are inserted into the slots.

6. The double-sided coating assembly according to claim 1, characterized in that, The tool holder includes two parallel side plates. The surface of the side plate facing the material is set as an inclined surface or an arc surface. The end of the coating blade is fixedly connected to the corresponding inclined surface or arc surface. A pull rod is also arranged between the two side plates.

7. A coating and shaping mechanism, characterized in that, It includes the double-sided coating assembly according to any one of claims 2-6 and a shaping water tank. The top of the shaping water tank is open and shaping water is arranged inside. The gantry is erected and fixed on the top of the shaping water tank and the lower positioning roller is arranged in the shaping water.

8. The coating and shaping mechanism according to claim 7, wherein An outwardly projecting support part is arranged on the outer side surface of the gantry along the width direction of the material. A reinforcing plate is arranged along the thickness direction of the material on the outwardly projecting support part. The outwardly projecting support part and the reinforcing plate are both fixed on the installation bottom plate. The installation bottom plate is fixed on the top of the shaping water tank; A liquid discharge port and an overflow port are arranged on the shaping water tank; The lower positioning roller is arranged at the bottom of the gantry. A horizontally extending frame is also arranged at the bottom of the gantry. An auxiliary roller is arranged on the horizontally extending frame. A pinch roller assembly is arranged at the top of the side wall of the shaping water tank adjacent to the auxiliary roller.

9. A double-sided coating production line, characterized in that, Adopting the coating and shaping mechanism according to claim 8, it includes an unwinding mechanism, a coating and shaping mechanism, a rinsing mechanism and a winding mechanism arranged in sequence.

10. The double-sided coating production line according to claim 9, characterized in that, The unwinding mechanism includes an unwinding base. An unwinding power part and a first deviation rectifying sensor are arranged on the unwinding base. A first slide rail and a first electric cylinder are arranged between the unwinding power part and the unwinding base. The first electric cylinder is used for pushing the unwinding power part to reciprocate along the guiding direction of the first slide rail on the unwinding base; The winding mechanism includes a winding base. A winding power part and a second deviation rectifying sensor are arranged on the winding base. A second slide rail and a second electric cylinder are arranged between the winding power part and the winding base. The second electric cylinder is used for pushing the winding power part to reciprocate along the guiding direction of the second slide rail on the winding base; The rinsing mechanism includes a rinsing water tank. A plurality of lower transition rollers and upper transition rollers are alternately arranged in the rinsing water tank.

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