Coating detection device

Abstract

The invention relates to the technical field of battery cell manufacturing, and provides a coating detection device which comprises a conveying line, a transferring mechanism, a scraper mechanism, a baking mechanism and a detection mechanism. The transferring mechanism is arranged on the conveying line and used for containing foil and slurry, and the conveying line is used for transporting the transferring mechanism. The scraper mechanism, the baking mechanism and the detection mechanism are sequentially arranged along the conveying line. The scraper mechanism comprises a scraper assembly, and the scraper assembly is arranged above the conveying line in a lifting mode. The baking mechanism comprises a baking module, and the baking module is arranged above the conveying line. The detection mechanism comprises a detection head. According to the coating detection device disclosed by the invention, the conveying line can convey the transfer mechanism to sequentially pass through the scraper mechanism, the baking mechanism and the detection mechanism so as to simulate uniform smearing and drying procedures of a coating machine, and the detection head can detect the thickness of each position of slurry; the detection result can be used as a basis for judging and adjusting the matching of the material characteristics of the slurry, the dyne value of the foil and the die head gasket of the coating machine.

Description

Technical Field

[0001] The present invention relates to the technical field of battery core manufacturing, and in particular to a coating detection device. Background Art

[0002] Coating is a very important process in the sodium and lithium battery industries. The coating process is to pass the slurry mixed in the homogenization process through the coating machine and spray it evenly on the surface of the foil according to the process requirements. The coating machine is equipped with a head gasket, which is used to squeeze the slurry on the foil so that the slurry can be laid on the foil surface according to the process requirements. With the development of the industry, the coating speed of the coating machine is getting faster and faster.

[0003] In the early stages of production, there is a tendency for mismatches between slurry properties, foil dyne value and coater die gaskets, requiring adjustments to the slurry, foil and coater die gasket. However, the matching and adjustment process takes a long time, resulting in the scrapping of a large amount of material, and low coating efficiency and pass rate in the early stages of production. Summary of the invention

[0004] The present invention provides a coating detection device to solve the defects in the prior art that it takes a long time to match and adjust the slurry, foil and gasket, causing a large amount of material scrapping in the early stage of production, and the coating efficiency is low and the qualified rate is low.

[0005] The present invention provides a coating detection device, comprising: A conveyor line and a transfer mechanism, wherein the transfer mechanism is arranged on the conveyor line, the transfer mechanism is used to hold foil and slurry, and the conveyor line is used to transport the transfer mechanism; A scraper mechanism, a baking mechanism and a detection mechanism are arranged in sequence along the conveyor line; the scraper mechanism includes a scraper assembly, which is movably arranged above the conveyor line, and the scraper assembly is used to scrape the slurry on the foil; the baking mechanism includes a baking module, which is arranged above the conveyor line, and the baking module is used to heat the slurry; the detection mechanism includes a detection head, and the detection head is used to detect the thickness of each position of the slurry.

[0006] According to the coating detection device provided by the present invention, the scraper mechanism further includes a first fixing seat and a first driver; The first fixed seat is arranged at one side of the conveying line, and the scraper assembly is arranged on the first fixed seat in a liftable manner; the first driver is arranged on the first fixed seat, and the first driver is connected to the scraper assembly in a transmission manner to drive the scraper assembly to rise and fall.

[0007] According to the coating detection device provided by the present invention, the scraper assembly includes a scraper and a mounting seat, the mounting seat is liftably arranged on the first fixed seat, the scraper is detachably mounted on the mounting seat, and the first driver is connected to the mounting seat.

[0008] According to the coating detection device provided by the present invention, the blade side of the scraper includes a coating portion and two thinning portions arranged along the width direction of the scraper, the two thinning portions are respectively located at both ends of the coating portion, and the thinning portion protrudes downward relative to the coating portion.

[0009] According to the coating detection device provided by the present invention, the blade side of the scraper also has a limiting portion corresponding to the thinning portion one by one, each of the limiting portions is located at an end of the corresponding thinning portion away from the coating portion, and the limiting portion protrudes downward relative to the corresponding thinning portion.

[0010] According to the coating detection device provided by the present invention, the transfer mechanism includes a carrier and a pressing plate; The carrier is arranged on the conveying line, and the carrier is used to lay the foil material; the pressing plate is arranged on the carrier, and the pressing plate is used to press on the upper side of the foil material.

[0011] According to the coating detection device provided by the present invention, the baking mechanism further includes a second fixing seat and a second driver; The second fixing seat is arranged at one side of the conveying line, and the baking module is arranged on the second fixing seat in a liftable manner; the second driver is arranged on the second fixing seat, and the second driver is transmission-connected with the baking module to drive the baking module to rise and fall.

[0012] According to the coating detection device provided by the present invention, the detection mechanism further includes a third fixing seat and a third driver; The third fixed seat is arranged at one side of the conveying line, and the detection head is movably arranged on the third fixed seat along the first direction; the third driver is arranged on the third fixed seat, and the third driver is transmission-connected with the detection head to drive the detection head to move along the first direction; The first direction extends in a horizontal direction and is perpendicular to a conveying direction of the conveying line.

[0013] According to the coating detection device provided by the present invention, the detection mechanism further includes a lifting component, the lifting component is movably arranged on the third fixing seat, and the detection head is arranged on the lifting component; The third driver is in transmission connection with the lifting assembly to drive the lifting assembly to move along the first direction; the lifting assembly is used to drive the detection head to move up and down.

[0014] According to the coating detection device provided by the present invention, the detection head is a laser distance measuring sensor or a contact distance measuring sensor.

[0015] The coating detection device of the present invention arranges a transfer mechanism on a conveyor line to carry foil and slurry. The conveyor line can transport the transfer mechanism so that the transfer mechanism can pass through a scraper mechanism, a baking mechanism and a detection mechanism in sequence, wherein the scraper assembly of the scraper mechanism can scrape the slurry on the foil, and the baking module of the baking mechanism can dry the slurry to form an electrode sheet, thereby realizing the simulation of the smoothing and drying process of the coater, and the detection head of the detection mechanism can detect the thickness of the slurry (i.e., the electrode sheet) at each position. The detection result can be used as a basis for judging and adjusting the material properties of the slurry, the dyne value of the foil and the matching of the die head gasket of the coater, so as to adjust the material properties of the slurry, the dyne value of the foil and the die head gasket of the coater in advance before the online production, thereby reducing material waste and helping to improve the qualified rate and coating efficiency after the online production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 Schematic diagram of a coating detection device provided in an embodiment of the present invention.

[0018] Figure 2 is a top view of a coating detection device provided by an embodiment of the present invention.

[0019] Figure 3 It is a front view of the coating detection device provided by an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of a scraper provided in an embodiment of the present invention.

[0021] Reference numerals: 1. Coating detection device; 2. Foil; 3. Slurry; 11. Conveyor line; 12. Transfer mechanism; 121. Carrier; 122. Pressing plate; 13. scraper mechanism; 131. scraper; 1311. coating part; 1312. thinning part; 1313. limiting part; 132. first fixing seat; 133. first driver; 134. mounting seat; 14. baking mechanism; 141. baking module; 142. second fixing seat; 143. second driver; 15. Detection mechanism; 151. Detection head; 152. Third fixing seat; 153. Third driver. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Combine the following Figure 1-Figure 4 The coating detection device of the present invention is described.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a coating detection device 1, comprising: a conveyor line 11, a transfer mechanism 12, a scraper mechanism 13, a baking mechanism 14 and a detection mechanism 15. The transfer mechanism 12 is arranged on the conveyor line 11, and the transfer mechanism 12 is used to hold the foil 2 and the slurry 3, and the conveyor line 11 is used to transport the transfer mechanism 12. The scraper mechanism 13, the baking mechanism 14 and the detection mechanism 15 are arranged in sequence along the conveyor line 11. The scraper mechanism 13 includes a scraper assembly, which is liftably arranged above the conveyor line 11, and the scraper assembly is used to scrape the slurry 3 on the foil 2. The baking mechanism 14 includes a baking module 141, and the baking module 141 is arranged above the conveyor line 11, and the baking module 141 is used to heat the slurry 3. The detection mechanism 15 includes a detection head 151, and the detection head 151 is used to detect the thickness of each position of the slurry 3.

[0025] In this embodiment, a transfer mechanism 12 is provided on the conveyor line 11 to hold the foil 2 and the slurry 3. It can be understood that the foil 2 is spread flat on the transfer mechanism 12, the slurry 3 is placed on the foil 2, and a scraper mechanism 13, a baking mechanism 14 and a detection mechanism 15 are sequentially provided along the conveyor line 11, so that the transfer mechanism 12 can pass through the scraper mechanism 13, the baking mechanism 14 and the detection mechanism 15 sequentially along the conveyor line 11 to simulate the entire coating process.

[0026] Specifically, when the transfer mechanism 12 passes through the scraper mechanism 13, the scraper assembly of the scraper mechanism 13 can be lowered to contact the slurry 3 on the foil 2. As the transfer mechanism 12 continues to move forward, the scraper assembly will scrape the slurry 3 flat to simulate the extrusion and smoothing process of the die head gasket on the coater. After the scraping is completed, the scraper assembly can rise and reset again. Then, the transfer mechanism 12 will pass through the baking mechanism 14, and the baking module 141 of the baking mechanism 14 heats the slurry 3 to dry the slurry 3 to form a pole piece. Finally, the transfer mechanism 12 passes through the detection mechanism 15, and the detection head 151 of the detection mechanism 15 can detect the thickness of each position of the slurry 3 (i.e., the pole piece). The detection personnel can judge whether the thickness of the slurry 3 meets the process requirements based on the thickness of each position of the slurry 3, and then judge whether the material properties of the slurry 3, the dyne value of the foil 2 and the matching of the coater die head gasket are qualified, and adjust the slurry 3, the foil 2 and the coater die head gasket based on this.

[0027] The coating detection device 1 of the present invention is provided with a transfer mechanism 12 on a conveyor line 11 to carry a foil 2 and a slurry 3. The conveyor line 11 can transport the transfer mechanism 12, so that the transfer mechanism 12 can pass through a scraper mechanism 13, a baking mechanism 14 and a detection mechanism 15 in sequence, wherein the scraper assembly of the scraper mechanism 13 can scrape the slurry 3 on the foil 2, and the baking module 141 of the baking mechanism 14 can dry the slurry 3 to form an electrode sheet, thereby realizing the simulation of the smoothing and drying process of the coater, and the detection head 151 of the detection mechanism 15 can detect the thickness of each position of the slurry 3 (i.e., the electrode sheet), and the detection result can be used as a basis for judging and adjusting the material properties of the slurry 3, the dyne value of the foil 2 and the matching of the die head gasket of the coater, so as to adjust the material properties of the slurry 3, the dyne value of the foil 2 and the die head gasket of the coater in advance before the production is put into production, thereby reducing the waste of materials and at the same time being conducive to improving the qualified rate and coating efficiency after the production is put into production.

[0028] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the scraper mechanism 13 also includes a first fixed seat 132 and a first driver 133. The first fixed seat 132 is arranged on one side of the conveyor line 11, and the scraper assembly is arranged on the first fixed seat 132 in a manner that it can be raised and lowered. The first driver 133 is arranged on the first fixed seat 132, and the first driver 133 is connected to the scraper assembly in a transmission manner to drive the scraper assembly to rise and fall.

[0029] In this embodiment, the first fixed seat 132 is used to support other components of the fixed scraper mechanism 13. The first fixed seat 132 is located on one side of the conveyor line 11. Part of the structure of the first fixed seat 132 extends above the conveyor line 11 to facilitate the setting of the scraper assembly. The first fixed seat 132 is also provided with a first driver 133. The first driver 133 can drive the scraper assembly to rise and fall so as to scrape the slurry 3 on the translation carrier 12.

[0030] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the scraper assembly includes a scraper 131 and a mounting seat 134 . The mounting seat 134 is liftably disposed on the first fixing seat 132 . The scraper 131 is detachably mounted on the mounting seat 134 . The first driver 133 is connected to the mounting seat 134 .

[0031] In this embodiment, a mounting seat 134 is provided on the first fixing seat 132, and the mounting seat 134 is used to mount the scraper 131. The first driver 133 can drive the mounting seat 134 to move up and down to drive the scraper 131 to move up and down. The scraper 131 is detachably mounted on the mounting seat 134, so that the inspection personnel can replace the scraper 131 at any time according to the inspection requirements.

[0032] Optionally, in some embodiments, the first fixing seat 132 is provided with a guide rail extending in a vertical direction, the mounting seat 134 is slidably disposed on the guide rail, and the first driver 133 can drive the mounting seat 134 to slide along the guide rail; the first driver 133 may be a cylinder.

[0033] Optionally, in some embodiments, the first fixed seat 132 is provided with a transmission belt extending in the vertical direction, the mounting seat 134 is arranged on the transmission belt, and the first driver 133 is connected to the driving wheel of the transmission belt to drive the transmission belt to drive the mounting seat 134 to rise and fall; the first driver 133 can be a motor.

[0034] In some embodiments, Figure 1 , Figure 2 and Figure 4 As shown, the blade side of the scraper 131 includes a width direction of the scraper 131 (such as Figure 1 , Figure 2 and Figure 4 A coating portion 1311 and two thinning portions 1312 are arranged in the Y direction, the two thinning portions 1312 are respectively located at two ends of the coating portion 1311, and the thinning portions 1312 protrude downward relative to the coating portion 1311.

[0035] In the present embodiment, it can be understood that the blade side of the scraper 131 is the side where the scraper 131 contacts the slurry 3, and an inwardly concave coating portion 1311 is provided in the middle of the blade side, and outwardly convex thinning portions 1312 are provided at both ends of the coating portion 1311. When the blade side contacts and flattens the slurry 3, the slurry 3 scraped out by the coating portion 1311 corresponds to the middle of the pole piece and is thicker, and the slurry 3 scraped out by the thinning portion 1312 is located on both sides of the pole piece and is thinner, which can effectively prevent the slurry 3 from accumulating on the edge of the pole piece during the scraping process, so as to simulate the leveling effect of the coater die head gasket on the middle of the slurry 3 and the thinning effect on both sides. After the detection mechanism 15 completes the detection, by detecting the thickness of the thinned area and the coated area of ​​the electrode, it can be determined whether the thickness difference between the two meets the process requirements, and based on this, one or more factors of the coater die gasket, slurry or foil can be adjusted. For example, the structure of the coater die gasket, the composition ratio of the slurry or the dyne value of the incoming foil can be adjusted.

[0036] Furthermore, in some embodiments, Figure 4 As shown, the blade side of the scraper 131 also has a limiting portion 1313 corresponding to the thinning portion 1312 one by one, each limiting portion 1313 is located at one end of the corresponding thinning portion 1312 away from the coating portion 1311, and the limiting portion 1313 protrudes downward relative to the corresponding thinning portion 1312.

[0037] In this embodiment, by setting a limiting portion 1313 at one end of each thinning portion 1312 away from the coating portion 1311, the limiting portion 1313 protrudes downward relative to the thinning portion 1312. When leveling, the limiting portion 1313 can be used as a positioning reference for the thinning portion 1312. By adjusting the height difference between the thinning portion 1312 and the limiting portion 1313, different thinning effects of different coater die gaskets can be simulated. After the detection mechanism 15 completes the detection, by detecting the thickness of the thinning area and the coating area of ​​the electrode, it can be determined whether the thickness difference between the two meets the process requirements, and based on this, one or more factors of the coater die gasket, slurry or foil can be adjusted, for example, the structure of the coater die gasket, the composition ratio of the slurry or the incoming dyne value of the foil can be adjusted.

[0038] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the transfer mechanism 12 includes a carrier 121 and a pressing plate 122. The carrier 121 is arranged on the conveyor line 11, and the carrier 121 is used to lay the foil material 2. The pressing plate 122 is arranged on the carrier 121, and the pressing plate 122 is used to press on the upper side of the foil material 2.

[0039] In this embodiment, the carrier 121 is arranged on the conveyor line 11, the upper side of the carrier 121 is used to lay the foil 2, the slurry 3 is placed on the upper side of the foil 2, and the carrier 121 is used to move with the conveyor line 11 and sequentially pass through the scraper mechanism 13 and the baking mechanism 14. At the same time, a pressing plate 122 is arranged on the carrier 121, and the pressing plate 122 is pressed on the foil 2, so as to cooperate with the carrier 121 to clamp and fix the foil 2 to prevent the foil 2 from deflecting.

[0040] Specifically, in some embodiments, there are two pressing plates 122 , and the two pressing plates 122 are respectively pressed on the edges of both sides of the foil 2 , so that the foil 2 can be laid flat on the carrier 121 .

[0041] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the baking mechanism 14 further includes a second fixing seat 142 and a second driver 143. The second fixing seat 142 is disposed on one side of the conveyor line 11, and the baking module 141 is escalably disposed on the second fixing seat 142. The second driver 143 is disposed on the second fixing seat 142, and the second driver 143 is in transmission connection with the baking module 141 to drive the baking module 141 to rise and fall.

[0042] In this embodiment, the second fixed seat 142 is used to support and fix other components of the baking mechanism 14. The second fixed seat 142 is located on one side of the conveyor line 11. Part of the structure of the second fixed seat 142 extends above the conveyor line 11 to facilitate the setting of the baking module 141. A second driver 143 is also provided on the second fixed seat 142. The second driver 143 can drive the baking module 141 to rise and fall, so that the baking module 141 is as close to the slurry 3 as possible, so as to heat and dry the slurry 3.

[0043] Optionally, in some embodiments, the second fixed seat 142 is provided with a guide rail extending in the vertical direction, the baking module 141 is slidably disposed on the guide rail, and the second driver 143 can drive the baking module 141 to slide along the guide rail; the second driver 143 can be a cylinder.

[0044] Optionally, in some embodiments, the second fixed seat 142 is provided with a transmission belt extending in the vertical direction, the baking module 141 is arranged on the transmission belt, and the second driver 143 is connected to the driving wheel of the transmission belt to drive the transmission belt to drive the baking module 141 to rise and fall; the second driver 143 can be a motor.

[0045] In some embodiments, Figure 1 , Figure 2 and Figure 3As shown, the detection mechanism 15 also includes a third fixed seat 152 and a third driver 153. The third fixed seat 152 is arranged on one side of the conveyor line 11, and the detection head 151 is movably arranged on the third fixed seat 152 along the first direction. The third driver 153 is arranged on the third fixed seat 152, and the third driver 153 is connected to the detection head 151 to drive the detection head 151 to move along the first direction. The first direction (such as Figure 1 , Figure 2 and Figure 4 The Y direction in FIG. 1 extends in the horizontal direction and is aligned with the conveying direction of the conveying line 11 (as shown in FIG. Figure 1 , Figure 2 and Figure 3 The X direction is shown in the figure) vertically.

[0046] In this embodiment, the third fixed seat 152 is used to support and fix other components of the detection mechanism 15. The third fixed seat 152 is located on one side of the conveyor line 11. Part of the structure of the third fixed seat 152 extends above the conveyor line 11 to set the detection head 151. The third fixed seat 152 is also provided with a third driver 153. The third driver 153 can drive the detection head 151 to move along a first direction, and the first direction is perpendicular to the conveying direction of the conveyor line 11, so as to cooperate with the conveyor line 11 to adjust the relative position of the detection head 151 and the transfer mechanism 12, thereby adjusting the relative position of the detection head 151 and the electrode formed by the slurry 3, so that the detection head 151 can detect the thickness of the electrode at different positions.

[0047] Optionally, in some embodiments, the third fixing seat 152 is provided with a guide rail extending along the first direction, the detection head 151 is slidably disposed on the guide rail, and the third driver 153 can drive the detection head 151 to slide along the guide rail; the third driver 153 can be a cylinder.

[0048] Optionally, in some embodiments, the third fixed seat 152 is provided with a transmission belt extending along the first direction, the detection head 151 is arranged on the transmission belt, and the third driver 153 is connected to the driving wheel of the transmission belt to drive the transmission belt to drive the detection head 151 to slide along the first direction; the third driver 153 can be a motor.

[0049] Furthermore, in some embodiments, the detection mechanism 15 further includes a lifting assembly, which is movably disposed on the third fixing seat 152, and the detection head 151 is disposed on the lifting assembly. The third driver 153 is in transmission connection with the lifting assembly to drive the lifting assembly to move along the first direction. The lifting assembly is used to drive the detection head 151 to rise and fall.

[0050] In this embodiment, by arranging a lifting assembly on the third fixing seat 152 and installing the detection head 151 on the lifting assembly, the third driver 153 can drive the lifting assembly to drive the detection head 151 to move along the first direction, so as to cooperate with the conveyor line 11 to adjust the horizontal relative position of the detection head 151 and the transfer mechanism 12. At the same time, the lifting assembly can drive the detection head 151 to rise and fall to adjust the height of the detection head 151.

[0051] Optionally, the detection head 151 is a laser distance sensor or a contact distance sensor. It is understandable that when the detection head 151 is a laser distance sensor, the laser distance sensor does not need to contact the pole piece, and the laser distance sensor does not need to be set on the lifting assembly. It is only necessary to adjust the horizontal relative position of the detection head 151 and the transfer mechanism 12 through the third driver 153 in cooperation with the conveyor line 11, so that the detection head 151 can detect the distance between each position of the pole piece and the detection head 151, and the thickness of each position of the pole piece can be calculated in combination with the distance between the detection head 151 and the upper surface of the foil 2.

[0052] When the detection head 151 is a contact distance measuring sensor, it is necessary to set the contact distance measuring sensor on the lifting assembly. When performing detection, the third driver 153 cooperates with the conveyor line 11 to adjust the horizontal relative position of the detection head 151 and the transfer mechanism 12 so that the contact distance measuring sensor is aligned with the detection point on the pole piece. The contact distance measuring sensor is then driven down by the lifting assembly until the contact distance measuring sensor contacts the detection point of the pole piece. The contact distance measuring sensor will record the descending distance of the lifting assembly. Combined with the height of the upper surface of the foil 2 and the initial height of the contact distance measuring sensor, the thickness of the pole piece at the detection point can be calculated.

[0053] Optionally, the detection head 151 can also be a depth camera, which is used to capture the image of the pole piece formed by the slurry 3 and transmit the image to the visual recognition system. The visual recognition system processes and measures the image to obtain the distance between each position of the pole piece and the detection head 151, and combines the distance between the detection head 151 and the upper surface of the foil 2 to calculate the thickness of each position of the pole piece.

[0054] In some embodiments, the coating detection device 1 further includes a base, and the conveying line 11, the first fixing seat 132 of the scraper mechanism 13, the second fixing seat 142 of the baking mechanism 14, and the third fixing seat 152 of the detection mechanism 15 are all fixed on the base.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coating detection device, characterized in that: include: A conveyor line and a transfer mechanism, wherein the transfer mechanism is arranged on the conveyor line, the transfer mechanism is used to hold foil and slurry, and the conveyor line is used to transport the transfer mechanism; A scraper mechanism, a baking mechanism and a detection mechanism are arranged in sequence along the conveyor line; the scraper mechanism includes a scraper assembly, which is movably arranged above the conveyor line, and the scraper assembly is used to scrape the slurry on the foil; the baking mechanism includes a baking module, which is arranged above the conveyor line, and the baking module is used to heat the slurry; the detection mechanism includes a detection head, and the detection head is used to detect the thickness of each position of the slurry.

2. The coating detection device according to claim 1, characterized in that: The scraper mechanism also includes a first fixing seat and a first driver; The first fixed seat is arranged at one side of the conveying line, and the scraper assembly is arranged on the first fixed seat in a liftable manner; the first driver is arranged on the first fixed seat, and the first driver is connected to the scraper assembly in a transmission manner to drive the scraper assembly to rise and fall.

3. The coating detection device according to claim 2, characterized in that: The scraper assembly comprises a scraper and a mounting seat. The mounting seat is liftably arranged on the first fixing seat. The scraper is detachably mounted on the mounting seat. The first driver is connected to the mounting seat.

4. The coating detection device according to claim 1, characterized in that: The blade side of the scraper includes a coating portion and two thinning portions arranged along the width direction of the scraper, the two thinning portions are respectively located at two ends of the coating portion, and the thinning portion protrudes downward relative to the coating portion.

5. The coating detection device according to claim 4, characterized in that: The blade side of the scraper also has limiting portions corresponding to the thinning portions one by one, each of the limiting portions is located at an end of the corresponding thinning portion away from the coating portion, and the limiting portions protrude downward relative to the corresponding thinning portion.

6. The coating detection device according to claim 1, characterized in that: The transfer mechanism includes a carrier and a pressing plate; The carrier is arranged on the conveying line, and the carrier is used to lay the foil material; the pressing plate is arranged on the carrier, and the pressing plate is used to press on the upper side of the foil material.

7. The coating detection device according to claim 1, characterized in that: The baking mechanism also includes a second fixing seat and a second driver; The second fixing seat is arranged at one side of the conveying line, and the baking module is arranged on the second fixing seat in a liftable manner; the second driver is arranged on the second fixing seat, and the second driver is transmission-connected with the baking module to drive the baking module to rise and fall.

8. The coating detection device according to claim 1, characterized in that: The detection mechanism also includes a third fixing seat and a third driver; The third fixed seat is arranged at one side of the conveying line, and the detection head is movably arranged on the third fixed seat along the first direction; The third driver is disposed on the third fixing seat, and the third driver is in transmission connection with the detection head to drive the detection head to move along the first direction; The first direction extends in a horizontal direction and is perpendicular to a conveying direction of the conveying line.

9. The coating detection device according to claim 8, characterized in that: The detection mechanism further comprises a lifting assembly, the lifting assembly is movably arranged on the third fixing seat, and the detection head is arranged on the lifting assembly; The third driver is in transmission connection with the lifting assembly to drive the lifting assembly to move along the first direction; the lifting assembly is used to drive the detection head to move up and down.

10. The coating detection device according to claim 8 or 9, characterized in that: The detection head is a laser distance measuring sensor or a contact distance measuring sensor.

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