On-line detection tool for coating die head

Abstract

The application relates to a coating die head on-line detection tool comprising a positioning carriage which comprises first linear modules installed at two ends of a coating die head, second linear modules which are respectively connected to the first linear modules and slide along a first direction, and a third linear module which is connected to the second linear modules and slides along a second direction; the third linear module is connected to the second linear module and slides in the second direction; and the detection assembly comprises a sensor mounting plate which is connected to the third linear module and slides in the third direction, and the sensor mounting plate is connected with a detection sensor used for detecting a coating lip on the coating die head. After the positioning sliding frame is installed on the detected coating die head, a detection sensor on the third linear module is manually held to slowly move in the third direction, whether the data change of the detection sensor exceeds the upper and lower limit values of the alignment degree of the upper and lower lips or the upper and lower limit values of the abrasion loss of the two lips or not is checked, and data are recorded; the detection efficiency is improved, and the detection difficulty is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of battery pole piece manufacturing, and in particular to an online detection tooling for a coating die head. Background Art

[0002] As a precise wet coating technology, the coating die works on the principle that the slurry is extruded and sprayed along the slit of the coating die at a certain pressure and flow rate and transferred to the substrate. The coating die is the core component of the coating machine. Slit extrusion is achieved through the die, and slit extrusion coating is an important process in the battery manufacturing process. The slurry is extruded from the lip through the die slit at a certain flow rate and transferred to the surface of the moving copper foil or aluminum foil substrate. The width and consistency of the lip determine the accuracy and stability of the coating equipment.

[0003] The coating die head consists of an upper die head, a lower die head and a gasket sandwiched therebetween. A cavity is opened on the lower die head, and the slurry enters the cavity from the feed port. A notch is set at the front end of the gasket for the slurry to flow out. The upper die head, the lower die head and the gasket are surrounded to form a coating slit. The slurry passes through the coating slit and is squeezed from the coating lip to the substrate on the coating roller to form a functional layer on the substrate, such as coating the negative electrode slurry on the copper foil to form the negative electrode sheet of the battery; coating the positive electrode slurry on the aluminum foil to form the positive electrode sheet of the battery.

[0004] In the related art, manual inspection is mainly used to detect the lip size. A feeler gauge is manually pushed to select a limited number of inspection points on the lip of the coating die for inspection. The inspection effect varies from person to person. In many cases, professional technicians determine whether the die is qualified based on their professional proficiency. At the same time, the inspection results can only be responsible for a limited number of selected inspection points, and more inspections cannot be performed. Therefore, manual inspection has low efficiency and accuracy varies from person to person. Summary of the invention

[0005] The embodiment of the present application provides an online detection tool for a coating die head to solve the problem that the lip size detection of the coating die head in the related art is carried out by manual detection, resulting in low detection efficiency and detection accuracy varying from person to person.

[0006] The embodiment of the present application provides a coating die head online detection tool, including:

[0007] A positioning slide, the positioning slide comprising a first linear module for mounting at both ends of the coating die head, a second linear module respectively connected to the first linear module and sliding along the first direction, and a third linear module connected to the second linear module and sliding along the second direction;

[0008] A detection component, wherein the detection component includes a sensor mounting plate connected to the third linear module and sliding along a third direction, and a detection sensor for detecting a coating lip on the coating die head is connected to the sensor mounting plate.

[0009] In some embodiments, the length direction of the third linear module is parallel to the length direction of the coating lip, and the third linear module slides on the second linear module along the second direction to approach or move away from the coating lip on the coating die.

[0010] In some embodiments: the first linear module includes a first mounting plate mounted on the end of the coating die head by screws, a first guide rail extending along a first direction is fixed to the first mounting plate, and a first slider for fixing the second linear module is slidably connected to the first guide rail.

[0011] In some embodiments: a first locking block is slidably connected to the first guide rail, the first locking block is fixedly connected to the first sliding block, and a set screw is threadedly connected to the first locking block to fix the first sliding block to the first guide rail.

[0012] In some embodiments: the second linear module includes a second mounting plate mounted on the first linear module by screws, a second guide rail extending along a second direction is fixed to the second mounting plate, and a second slider for fixedly connecting the third linear module is slidably connected to the second guide rail.

[0013] In some embodiments: a second locking block is slidably connected to the second guide rail, the second locking block is fixedly connected to the second slider, and a set screw is threadedly connected to the second locking block to fix the second slider to the second guide rail.

[0014] In some embodiments: the third linear module includes a third mounting plate mounted on the second linear module by screws, a third guide rail extending along a third direction is fixed to the third mounting plate, and a third slider for fixing the detection assembly is slidably connected to the third guide rail.

[0015] In some embodiments: the detection sensor is a laser sensor or a contact displacement sensor. When the axis of the laser sensor is parallel to the first direction, it measures the alignment of the two coating lips on the coating die. When the axis of the contact displacement sensor is parallel to the second direction, it measures the wear of the two coating lips on the coating die.

[0016] In some embodiments: the sensor mounting plate includes a vertical plate connected to the third linear module, and a horizontal plate connected to the detection sensor, the vertical plate and the horizontal plate together form an "L"-shaped structure, and the laser sensor is fixed on the horizontal plate and the axis is parallel to the first direction.

[0017] In some embodiments: the sensor mounting plate is in the shape of a flat plate, the contact displacement sensor is fixed on the sensor mounting plate and the axis is parallel to the second direction.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] An embodiment of the present application provides an online detection tooling for a coating die. Since the online detection tooling for a coating die of the present application is provided with a positioning slide, the positioning slide includes a first linear module for installation at both ends of the coating die, a second linear module respectively connected to the first linear module and sliding along a first direction, and a third linear module connected to the second linear module and sliding along a second direction; a detection component, the detection component includes a sensor mounting plate connected to the third linear module and sliding along a third direction, and a detection sensor for detecting a coating lip on the coating die is connected to the sensor mounting plate.

[0020] Therefore, the coating die head online detection tooling of the present application utilizes the first linear module, the second linear module and the third linear module to form a positioning slide that positions and adjusts the position and angle of the detection component, so that the detection sensor of the detection component and the coating die head being tested remain in a stable relative position. After the positioning slide is installed on the coating die head being tested, manually hold the detection sensor on the third linear module and slowly move it along the third direction to check whether the change in the detection sensor data exceeds the upper and lower limits of the upper and lower lip alignment, or the upper and lower limits of the two lip wear, and record the data. The present application can effectively solve the problem of manually pushing the feeler gauge to select a limited number of detection points for detection on the lip of the coating die head, thereby improving detection efficiency and reducing detection difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a front view of the structure for detecting lip alignment according to an embodiment of the present application;

[0023] Figure 2 A top view of the structure for detecting lip alignment according to an embodiment of the present application;

[0024] Figure 3 This is a left view of the structure for detecting lip alignment according to an embodiment of the present application;

[0025] Figure 4 This is a front view of the structure for detecting the wear degree of the lip according to the embodiment of the present application;

[0026] Figure 5 A top view of the structure for detecting lip wear according to an embodiment of the present application;

[0027] Figure 6 This is a left view of the structure for detecting lip wear according to an embodiment of the present application;

[0028] Figure 7 This is a schematic diagram of the structure installed on the coating die head of an embodiment of the present application.

[0029] Reference numerals:

[0030] 1. First linear module; 2. Second linear module; 3. Third linear module; 4. Detection sensor; 5. Sensor mounting plate; 6. Coating die head; 11. First mounting plate; 12. First guide rail; 13. First slider; 14. First locking block; 21. Second mounting plate; 22. Second guide rail; 23. Second slider; 31. Third mounting plate; 32. Third guide rail; 33. Third slider; 61. Coating lip. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] The embodiment of the present application provides an online detection tool for a coating die head, which can solve the problem that the lip size detection of the coating die head in the related art is carried out by manual detection, resulting in low detection efficiency and detection accuracy varying from person to person.

[0033] See also Figures 1 to 7 As shown, the embodiment of the present application provides an online detection tool for a coating die head, comprising:

[0034] The positioning slide includes a first linear module 1 for being respectively installed at the left and right ends of the coating die 6, a second linear module 2 connected to the first linear module 1 and sliding along the first direction (i.e., Z direction), and a third linear module 3 connected to the second linear module 2 and sliding along the second direction (i.e., Y direction), wherein the first direction and the second direction are perpendicular to each other.

[0035] The detection component includes a sensor mounting plate 5 connected to the third linear module 3 and sliding along the third direction (i.e., the X direction), and a detection sensor 4 for detecting the coating lip 61 on the coating die 6 is connected to the sensor mounting plate 5, wherein the first direction, the second direction, and the third direction are perpendicular to each other. The detection sensor 4 is used to detect the alignment of the upper and lower lips of the coating lip 61 on the coating die 6 and the wear amount of the coating lip 61.

[0036] When the coating die head 6 stops working and withdraws to a safe position, manually install the first linear module 1 directly on the lifting holes on the left and right ends of the coating die head 6, install the second linear module 2 on the first linear module 1, and then install the third linear module 3 on the second linear module 2 to form a positioning slide.

[0037] When the alignment of the upper and lower lips of the coating lip 61 of the coating die 6 is detected as needed, the sensor mounting plate 5 is installed, and then the detection sensor 4 is installed on the sensor mounting plate 5. After all the above are installed, the levelness of the third linear module 3 is adjusted so that the length direction of the third linear module 3 is parallel to the length direction of the coating lip 61, and the detection sensor 4 is perpendicular to the coating lip 61 in the Z-axis direction of the coating die 6.

[0038] After adjusting the horizontality of the third linear module 3, the verticality of the detection sensor 4 along the Z-axis direction of the coating die head 6 and the coating lip 61, and the required height of the detection sensor 4 and the coating lip 61, keep the positions of the first linear module 1 and the second linear module 2 unchanged.

[0039] At this time, mark the zero position of the detection sensor 4, manually hold the detection sensor 4 at one end of the third linear module 3 and slowly move it along the third direction (i.e., X direction) to the other end of the third linear module 3. Check whether the data change of the detection sensor 4 exceeds the upper and lower limits of the alignment of the upper and lower coating lips, or the upper and lower limits of the wear of the two coating lips, and record the data. The moving starting position and end position of the detection sensor 4 are at the two ends of the coating lip 61, respectively.

[0040] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides an online detection tooling for a coating die head, wherein the length direction of the third linear module 3 of the detection tooling is parallel to the length direction (i.e., the X direction) of the coating lip 61, and the third linear module 3 slides on the second linear module 2 along the second direction in a direction approaching or away from the coating lip 61 on the coating die head 6.

[0041] When specifically detecting the alignment of the coating lip 61, the detection sensor 4 may be a laser sensor, and the laser light emitted by the laser sensor is emitted along the Z-axis direction to the edge of the coating lip 61 and remains perpendicular to the coating lip 61. The coating lip 61 is composed of an upper and lower lip, and the upper and lower lips must be aligned when the upper and lower lips are closed together. When the upper and lower lips are kept flush, the light emitted by the laser sensor transmitting end is not blocked by the upper and lower lips, and the light is received by the laser sensor receiving end after passing through the upper and lower lips. At this time, it can be determined that the upper and lower lips remain aligned.

[0042] Since the light emitted by the laser sensor is perpendicular to the lip, when the upper and lower lips are not aligned, the light emitted by the laser sensor transmitting end is blocked by the misaligned lips, and the light cannot pass through the upper and lower lips and is not received by the laser sensor receiving end. At this time, it can be determined that the upper and lower lips are in a misaligned state, and the data of this point is recorded.

[0043] When specifically detecting the wear of the coating lip 61, the detection sensor 4 may be a contact displacement sensor, the axis of which is parallel to the second direction, and the measuring head of which always maintains sliding contact with the coating lip 61. The contact displacement sensor at one end of the third linear module 3 is manually held and slowly moved along the third direction (i.e., the X direction) to the other end of the third linear module 3, and the wear of the coating lip 61 can be measured by checking the displacement information detected by the contact displacement sensor.

[0044] The first linear module 1 of the embodiment of the present application is used to adjust the distance between the detection sensor 4 and the coating lip in the Z-axis direction, the second linear module 2 is used to adjust the distance between the detection sensor 4 and the coating lip in the Y-axis direction, and the third linear module 3 is used to make the detection sensor 4 slide horizontally along the third direction (X-axis direction) to continuously monitor the alignment or wear of the coating lip 61.

[0045] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an online detection tooling for a coating die head, wherein a first linear module 1 of the detection tooling includes a first mounting plate 11 mounted on the end of the coating die head by screws, a first guide rail 12 extending in a first direction is fixed on the first mounting plate 11, and a first slider 13 for fixing a second linear module 2 is slidably connected to the first guide rail 12.

[0046] A first locking block 14 is slidably connected to the first guide rail 12, and the first locking block 14 is fixedly connected to the first slider 13. A set screw for fixing the first slider 13 to the first guide rail 12 is threadedly connected to the first locking block 14. After the first slider 13 adjusts the distance between the detection sensor 4 and the coating lip in the height direction, the first slider 13 is fixed to the first guide rail 12 by the set screw.

[0047] The second linear module 2 includes a second mounting plate 21 mounted on the first slider 13 of the first linear module 1 by screws, a second guide rail 22 extending along the second direction is fixed on the second mounting plate 21, and a second slider 23 for fixedly connecting the third linear module 3 is slidably connected to the second guide rail 22.

[0048] A second locking block (not shown) is slidably connected to the second guide rail 22, and the second locking block is fixedly connected to the second slider 23. A set screw is threadedly connected to the second locking block to fix the second slider 23 to the second guide rail 22. After the second slider 23 adjusts the distance between the detection sensor 4 and the coating lip in the horizontal direction, the second slider 23 is fixed to the second guide rail 22 by the set screw.

[0049] The third linear module 3 includes a third mounting plate 31 installed between the two second linear modules 2 by screws, a third guide rail 32 extending along the third direction is fixed on the third mounting plate 31, and a third slider 33 for fixing and connecting the detection component is slidably connected to the third guide rail 32. After the detection component is connected to the third slider 33, it reciprocates along the third guide rail 32 to detect the coating lip.

[0050] In some alternative embodiments: See Figures 1 to 6 As shown, the embodiment of the present application provides an online detection tooling for a coating die head, and the detection sensor 4 of the detection tooling is preferably but not limited to a laser sensor or a contact displacement sensor, the axis of the laser sensor is parallel to the first direction, and the axis of the contact displacement sensor is parallel to the second direction. When the axis of the laser sensor is parallel to the first direction, the alignment of the two coating lips 61 on the coating die head 6 is measured, and when the axis of the contact displacement sensor is parallel to the second direction, the wear of the two coating lips 61 on the coating die head 6 is measured.

[0051] When the axis of the laser sensor is parallel to the first direction to measure the alignment of the two coating lips 61 on the coating die, the sensor mounting plate 5 includes a vertical plate connected to the third linear module 3 and a horizontal plate connected to the detection sensor 4. The vertical plate and the horizontal plate together form an "L"-shaped structure. The detection sensor 4 is fixed on the horizontal plate and its axis is parallel to the first direction. When the axis of the contact displacement sensor is parallel to the second direction to measure the wear of the two coating lips on the coating die, the sensor mounting plate 5 is in the shape of a flat plate, and the detection sensor 4 is fixed on the sensor mounting plate 5 and its axis is parallel to the second direction.

[0052] How it works

[0053] An embodiment of the present application provides an online detection tooling for a coating die. Since the online detection tooling for a coating die of the present application is provided with a positioning slide, the positioning slide includes a first linear module 1 for installation at both ends of a coating die 6, a second linear module 2 respectively connected to the first linear module 1 and sliding along a first direction, and a third linear module 3 connected to the second linear module 2 and sliding along a second direction; a detection component, the detection component includes a sensor mounting plate 5 connected to the third linear module 3 and sliding along a third direction, and a detection sensor 4 for detecting a coating lip 61 on the coating die 6 is connected to the sensor mounting plate 5.

[0054] Therefore, the coating die head online detection tooling of the present application utilizes the first linear module 1, the second linear module 2 and the third linear module 3 to form a positioning slide for positioning and adjusting the position and angle of the detection component, so that the detection sensor 4 of the detection component and the coating die head 6 to be tested remain in a stable relative position. After the positioning slide is installed on the coating die head to be tested, manually hold the detection sensor 4 on the third linear module 3 and slowly move it along the third direction to check whether the data change of the detection sensor 4 exceeds the upper and lower limits of the alignment of the upper and lower lips, or the upper and lower limits of the wear of the two lips, and record the data. The present application can effectively solve the problem of manually pushing the feeler gauge to select a limited number of detection points for detection on the lip of the coating die head, thereby improving the detection efficiency and reducing the detection difficulty.

[0055] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0056] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0057] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A coating die head online detection tooling, characterized in that: include: A positioning slide, the positioning slide comprising a first linear module (1) for mounting at two ends of a coating die head (6), a second linear module (2) respectively connected to the first linear module (1) and sliding along a first direction, and a third linear module (3) connected to the second linear module (2) and sliding along a second direction; A detection component, the detection component comprising a sensor mounting plate (5) connected to the third linear module (3) and sliding along a third direction, the sensor mounting plate (5) being connected to a detection sensor (4) for detecting a coating lip (61) on the coating die head (6).

2. The coating die head online detection tooling as claimed in claim 1, characterized in that: The length direction of the third linear module (3) is parallel to the length direction of the coating lip (61), and the third linear module (3) slides on the second linear module (2) along the second direction in a direction approaching or moving away from the coating lip (61) on the coating die head (6).

3. The coating die head online detection tool as claimed in claim 1, characterized in that: The first linear module (1) comprises a first mounting plate (11) mounted on the end of the coating die head by means of screws, a first guide rail (12) extending in a first direction is fixed on the first mounting plate (11), and a first slider (13) for fixedly connecting the second linear module (2) is slidably connected to the first guide rail (12).

4. The coating die head online detection tool as claimed in claim 3, characterized in that: A first locking block (14) is slidably connected to the first guide rail (12); the first locking block (14) is fixedly connected to the first sliding block (13); and a fixing screw for fixing the first sliding block (13) to the first guide rail (12) is threadedly connected to the first locking block (14).

5. A coating die head online detection tool as described in claim 1 or 3, characterized in that: The second linear module (2) comprises a second mounting plate (21) mounted on the first linear module (1) by means of screws, a second guide rail (22) extending in a second direction being fixed on the second mounting plate (21), and a second slider (23) for fixedly connecting the third linear module (3) being slidably connected to the second guide rail (22).

6. The coating die head online detection tooling as claimed in claim 5, characterized in that: A second locking block is slidably connected to the second guide rail (22), the second locking block is fixedly connected to the second slider (23), and a set screw is threadedly connected to the second locking block for fixing the second slider (23) to the second guide rail (22).

7. The coating die head online detection tooling according to claim 1, characterized in that: The third linear module (3) comprises a third mounting plate (31) mounted on the second linear module (2) by means of screws, a third guide rail (32) extending along a third direction being fixed on the third mounting plate (31), and a third slider (33) for fixedly connecting the detection assembly being slidably connected to the third guide rail (32).

8. The coating die head online detection tool as claimed in claim 1, characterized in that: The detection sensor (4) comprises a laser sensor or a contact displacement sensor. When the axis of the laser sensor is parallel to the first direction, the alignment of the two coating lips on the coating die is measured. When the axis of the contact displacement sensor is parallel to the second direction, the wear of the two coating lips on the coating die is measured.

9. The coating die head online detection tool as claimed in claim 8, characterized in that: The sensor mounting plate (5) comprises a vertical plate connected to the third linear module (3) and a horizontal plate connected to the detection sensor (4), wherein the vertical plate and the horizontal plate together form an "L"-shaped structure, and the laser sensor is fixed on the horizontal plate with its axis parallel to the first direction.

10. The coating die head online detection tooling as claimed in claim 8, characterized in that: The sensor mounting plate (5) is in the shape of a flat plate, and the contact displacement sensor is fixed on the sensor mounting plate (5) with its axis parallel to the second direction.

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