A position detector and a battery coating device

Abstract

The present invention discloses a position detector and a battery coating device, the position detector is used to measure the parallelism between the gasket in the extrusion coating machine and the upper die head and the lower die head on both sides of the gasket, the position detector includes a base, a vertical displacement component, a longitudinal displacement component and a rangefinder, the base is used to hang on the extrusion coating machine; the vertical displacement component is slidably connected to the base in the thickness direction of the gasket; the longitudinal displacement component is slidably connected to the vertical displacement component in the width direction of the gasket; the rangefinder is connected to the longitudinal displacement component; wherein the longitudinal displacement component is used to adjust the distance between the rangefinder and the upper die head, the gasket, and the lower die head, respectively, and the vertical displacement component is used to drive the rangefinder to align with the upper die head, the gasket, and the lower die head respectively. The position detector of the present invention can accurately and efficiently obtain the parallelism between the gasket in the coating machine and the upper die head and the lower die head on both sides of the gasket.

Description

Technical Field

[0001] The present invention relates to the technical field of position detectors, and in particular, to a position detector and a battery coating device. Background Art

[0002] Due to the advantages of lithium-ion batteries such as recyclability and low pollution, they have been widely used in the fields of consumer electronics, electric vehicles, energy storage, electric bicycles, electric motorcycles, etc. in recent years.

[0003] The production of lithium-ion batteries requires an extrusion coater, which includes a back plate, an upper die head, a lower die head, and a gasket between the upper die head and the lower die head. The lower die head is fixed on the back plate for positioning. When the upper die head, the lower die head, and the gasket are properly installed, the gasket is parallel to the upper die head and the lower die head respectively (that is, the relative distances between the left side, the right side of the gasket and the planes of the upper die head and the lower die head are the same). Currently, in the industry, the method of touching by hand and visual inspection is used to determine whether the gasket is parallel to the upper die head and the lower die head, which cannot be quantified and has a large error. If the gasket and the upper die head and the lower die head are not properly installed, it will cause deviation in the coating surface density of the lithium-ion battery. Summary of the Invention

[0004] The purpose of the present invention is to provide a position detector and a battery coating device to solve the problem of the parallelism between the gasket and the upper die head and the lower die head on both sides of the gasket.

[0005] To achieve the above purpose, the present invention is realized by adopting the following technical solutions:

[0006] A position detector is used to measure the parallelism between the gasket and the upper die head and the lower die head on both sides of the gasket in an extrusion coater. The position detector includes:

[0007] A base for hanging on the extrusion coater;

[0008] A vertical displacement component slidably connected to the base in the thickness direction of the gasket;

[0009] A longitudinal displacement component slidably connected to the vertical displacement component in the width direction of the gasket;

[0010] A rangefinder connected to the longitudinal displacement component; wherein, the longitudinal displacement component is used to adjust the distances between the rangefinder and the upper die head, the gasket, and the lower die head respectively, and the vertical displacement component is used to drive the rangefinder to align with the upper die head, the gasket, and the lower die head respectively.

[0011] Furthermore, the position detector further includes a magnet fixed on the base, and the magnet is used to magnetically attract to the extrusion coater.

[0012] Further, the vertical displacement assembly includes a guide rail, a slider, and an adjusting member. The guide rail is fixed to the base, the slider is slidably connected to the guide rail, the longitudinal displacement assembly is connected to the slider, and the adjusting member passes through the slider and is connected to the slide rail.

[0013] Further, the guide rail is provided with a first tooth pattern, and the adjusting member is provided with a second tooth pattern, and the first tooth pattern and the second tooth pattern are meshed with each other.

[0014] Further, the vertical displacement assembly further includes a limiting member, and the limiting member is arranged on the guide rail and is used to abut against the upper and lower end faces of the slider.

[0015] Further, the longitudinal displacement assembly includes a first connecting arm, a second connecting arm, and a fastener. The first connecting arm is connected to the vertical displacement assembly. The second connecting arm is provided with a kidney-shaped hole, and the fastener passes through the kidney-shaped hole and is connected to the first connecting arm. The distance measuring device is connected to the second connecting arm.

[0016] Further, the first connecting arm is provided with an L-shaped step, and the step is lapped and fixed on the vertical displacement assembly.

[0017] Further, one of the first connecting arm and the second connecting arm is provided with a square groove, and the other of the first connecting arm and the second connecting arm is embedded in the square groove.

[0018] Further, the base includes a first base portion and a second base portion. The first base portion and the second base portion are perpendicular to each other to form an L shape. The first base portion is used for hanging on the extrusion coater, and the vertical displacement assembly is connected to the second base portion.

[0019] To solve the above technical problems, the present invention further provides a battery coating device, which includes an extrusion coater and the position detector of any one of the above, and the position detector is hung on the extrusion coater.

[0020] The beneficial effects of the embodiments of the present invention are as follows: The battery coating device of the present application includes an extrusion coater and a position detector, and the position detector is hung on the extrusion coater. The extrusion coater includes an upper die head, a gasket, a lower die head, and a back plate. The upper die head, the gasket, and the lower die head are sequentially stacked, and the lower die head is connected to the back plate.

[0021] The position detector includes a base, a vertical displacement component, a longitudinal displacement component and a rangefinder. The base is hung on the back plate of the extrusion coater in a detachable manner, and the base can be hung on any position of the end surface of the back plate. The vertical displacement component is slidably connected to the base in the thickness direction of the gasket, that is, the vertical displacement component can be moved toward the upper die head, the gasket, and the lower die head in sequence. The longitudinal displacement component is slidably connected to the vertical displacement component in the width direction of the gasket, that is, the longitudinal displacement component can be close to and away from the gasket. The rangefinder is connected to the longitudinal displacement component, and the rangefinder is used to measure the distance to the target object. The rangefinder can be a laser rangefinder, an ultrasonic rangefinder, etc. Among them, the longitudinal displacement component is used to adjust the distance between the rangefinder and the upper die head, the gasket, and the lower die head respectively, so as to adjust the rangefinder to the optimal sampling point, and the vertical displacement component is used to drive the rangefinder to align with the upper die head, the gasket, and the lower die head respectively, so that the rangefinder can obtain the distance with the upper die head, the gasket, and the lower die head respectively. By moving the base to multiple positions on the upper end surface of the back plate and then measuring and comparing multiple data, it can be determined whether the gasket is flush with the upper die head and the lower die head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments or early research and development of the present invention, the drawings required for use in the embodiments or early research and development descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a battery coating device provided in this application;

[0024] Figure 2 It is a schematic diagram of the assembly structure of the position detector provided by the present application;

[0025] Figure 3 It is a schematic diagram of the exploded structure of the position detector provided by this application.

[0026] The graphic markings are as follows:

[0027] Battery coating device 100 extrusion coating machine 20 upper die 21 gasket 23 lower die 25 back plate 27 position detector 10 base 11 first base 112 second base 114 vertical displacement assembly 12 guide rail 121 first tooth pattern 125 slider 122 adjustment member 123 second tooth pattern 126 limiter 124 longitudinal displacement assembly 13 first connecting arm 131 step 134 second connecting arm 132 fastener 133 distance meter 14 magnet 15 DETAILED DESCRIPTION

[0028] In the present invention, the descriptions involving "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features.

[0029] In the present invention, the descriptions involving "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features.

[0030] Please refer to Figures 1 to 3 , Figure 1 which is a schematic structural diagram of the battery coating device 100 provided by the present application, Figure 2 which is an assembled structural diagram of the position detector 10 provided by the present application, Figure 3 which is an exploded structural diagram of the position detector 10 provided by the present application.

[0031] The battery coating device 100 of the present application includes an extrusion coater 20 and a position detector 10, and the position detector 10 is mounted on the extrusion coater 20.

[0032] The extrusion coater 20 includes an upper die head 21, a gasket 23, a lower die head 25, and a back plate 27. The upper die head 21, the gasket 23, and the lower die head 25 are stacked in sequence, and the lower die head 25 is connected to the back plate 27.

[0033] The position detector 10 includes a base 11, a vertical displacement assembly 12, a longitudinal displacement assembly 13, and a distance measurer 14.

[0034] The base 11 is mounted on the back plate 27 of the extrusion coater 20 in a detachable manner, and the base 11 can be mounted at any position on the upper end face of the back plate 27.

[0035] The vertical displacement assembly 12 is slidably connected to the base 11 in the thickness direction of the gasket 23, that is, the vertical displacement assembly 12 can move successively towards the upper die head 21, the gasket 23, and the lower die head 25. The longitudinal displacement assembly 13 is slidably connected to the vertical displacement assembly 12 in the width direction of the gasket 23, that is, the longitudinal displacement assembly 13 can approach and move away from the gasket 23. The distance measurer 14 is connected to the longitudinal displacement assembly 13, and the distance measurer 14 is used to measure the distance to the target object. The distance measurer 14 can be a laser distance measurer 14, an ultrasonic distance measurer 14, etc.

[0036] Among them, the longitudinal displacement component 13 is used to adjust the distances between the distance measurer 14 and the upper die head 21, the gasket 23, and the lower die head 25 respectively, so as to adjust the distance measurer 14 to the optimal sampling point. The vertical displacement component 12 is used to drive the distance measurer 14 to align with the upper die head 21, the gasket 23, and the lower die head 25 respectively, so that the distance measurer 14 can obtain the distances from the upper die head 21, the gasket 23, and the lower die head 25 respectively. After moving the base 11 to multiple positions on the upper end surface of the back plate 27 and then measuring and comparing multiple data, it can be determined whether the gasket 23 is flush with the upper die head 21 and the lower die head 25.

[0037] The base 11 includes a first base portion 112 and a second base portion 114. The first base portion 112 and the second base portion 114 are perpendicular to each other to form an L shape. The first base portion 112 is used for hanging on the extrusion coater 20, and the vertical displacement component 12 is connected to the second base portion 114. The first base portion 112 and the second base portion 114 are perpendicular to each other, so as to ensure that after the first base portion 112 is lapped on the extrusion coater 20, the vertical displacement component 12 fixed to the second base portion 114 can be parallel to the thickness direction of the gasket 23, thereby ensuring the vertical displacement component 12.

[0038] The position detector 10 further includes a magnet 15. The magnet 15 is fixed on the base 11 and is used for magnetically attracting to the extrusion coater 20, thereby realizing a detachable connection. And the magnet 15 magnetically attracting to the extrusion coater 20 helps to quickly fix the base 11 and prevent the base 11 from shaking when adjusting the vertical displacement component 12 and the longitudinal displacement component 13.

[0039] The vertical displacement component 12 includes a guide rail 121, a slider 122, and an adjusting member 123. The guide rail 121 is fixed on the base 11, the slider 122 is slidably connected to the guide rail 121, the longitudinal displacement component 13 is connected to the slider 122, and the adjusting member 123 passes through the slider 122 and is connected to the slide rail. The adjusting member 123 is used for abutting against the guide rail 121 after adjusting the distance of the slider 122 on the guide rail 121, so that the slider 122 and the guide rail 121 are relatively fixed.

[0040] The guide rail 121 is provided with a first tooth pattern 125, and the adjusting member 123 is provided with a second tooth pattern 126. The first tooth pattern 125 and the second tooth pattern 126 are meshed with each other. When the adjusting member 123 rotates, the second tooth pattern 126 meshes and moves relative to the first tooth pattern 125, thereby pushing the slider 122 to move relative to the guide rail 121. After the adjustment is in place, the first tooth pattern 125 and the second tooth pattern 126 are meshed with each other, so as to play a fixing role.

[0041] The vertical displacement component 12 further includes a limiting member 124. The limiting member 124 is arranged on the guide rail 121 and is used to abut against the upper and lower end faces of the slider 122. At the extreme position where the slider 122 is separated from the slider 122, the limiting member 124 abuts against the upper and lower end faces of the slider 122 to prevent the slider 122 from separating from the guide rail 121.

[0042] The longitudinal displacement component 13 includes a first connecting arm 131, a second connecting arm 132 and a fastener 133. The first connecting arm 131 is connected to the vertical displacement component 12. The second connecting arm 132 is provided with a kidney-shaped hole. The fastener 133 passes through the kidney-shaped hole and is connected to the first connecting arm 131. The distance measuring device 14 is connected to the second connecting arm 132. After the second connecting arm 132 drives the distance measuring device 14 to move relative to the first connecting arm 131 to a preset position, the fastener 133 passes through the kidney-shaped hole and is connected to the first connecting arm 131, thereby fixing the first connecting arm 131 and the second connecting arm 132.

[0043] The first connecting arm 131 is provided with an L-shaped step 134, and the step 134 is lapped and fixed on the vertical displacement component 12. The L-shaped step 134 has two mutually perpendicular surfaces, so as to ensure that the first connecting arm 131 is parallel to the slide rail and transfer the positioning accuracy of the base 11 and the slide rail to the first connecting arm 131.

[0044] One of the first connecting arm 131 and the second connecting arm 132 is provided with a square groove, and the other of the first connecting arm 131 and the second connecting arm 132 is embedded in the square groove. One function of the square groove is to limit the first connecting arm 131 and the second connecting arm 132, and the other function is that the surface of the square groove is composed of several mutually perpendicular surfaces, and the positioning accuracy of the first connecting arm 131 is transferred to the second connecting arm 132 through the square groove.

[0045] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

[0046] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A position detector for measuring the parallelism between a gasket and an upper die head and a lower die head on both sides of the gasket in an extrusion coater, characterized in that, The position detector includes: a base for hanging on an extrusion coater; a vertical displacement component slidably connected to the base in the thickness direction of the gasket; a longitudinal displacement component slidably connected to the vertical displacement component in the width direction of the gasket; a distance measuring device connected to the longitudinal displacement component; wherein, the longitudinal displacement component is used to adjust the distances between the distance measuring device and the upper die head, the gasket, and the lower die head respectively, and the vertical displacement component is used to drive the distance measuring device to align with the upper die head, the gasket, and the lower die head respectively; the distance measuring device is a laser distance measuring device or an ultrasonic distance measuring device.

2. The position detector according to claim 1, characterized in that: The position detector further includes a magnet fixed on the base, and the magnet is used to magnetically attract to the extrusion coater.

3. The position detector according to claim 1, characterized in that: The vertical displacement component includes a guide rail, a slider, and an adjusting member. The guide rail is fixed on the base, the slider is slidably connected to the guide rail, the longitudinal displacement component is connected to the slider, and the adjusting member passes through the slider and is connected to the guide rail.

4. The position detector according to claim 3, wherein: The guide rail is provided with a first tooth pattern, and the adjusting member is provided with a second tooth pattern, and the first tooth pattern and the second tooth pattern are meshed with each other.

5. The position detector according to claim 3, wherein: The vertical displacement component further includes a limiting member disposed on the guide rail, and the limiting member is used to abut against the upper end face and the lower end face of the slider.

6. The position detector according to claim 1, wherein: The longitudinal displacement component includes a first connecting arm, a second connecting arm, and a fastener. The first connecting arm is connected to the vertical displacement component, the second connecting arm is provided with a kidney-shaped hole, the fastener passes through the kidney-shaped hole and is connected to the first connecting arm, and the distance measuring device is connected to the second connecting arm.

7. The position detector according to claim 6, characterized in that: The first connecting arm is provided with an L-shaped step, and the step is lap-fixed on the vertical displacement component.

8. The position detector according to claim 6, characterized in that: One of the first connecting arm and the second connecting arm is provided with a square groove, and the other of the first connecting arm and the second connecting arm is embedded in the square groove.

9. The position detector according to claim 1, characterized in that: The base includes a first base portion and a second base portion, the first base portion and the second base portion are perpendicular to each other to form an L shape, the first base portion is used to hang on the extrusion coater, and the vertical displacement component is connected to the second base portion.

10. A battery coating device, characterized in that: The battery coating device includes an extrusion coater and the position detector according to any one of claims 1 to 9, and the position detector is hung on the extrusion coater.

Images