Automatic slit adjusting device

Abstract

The utility model provides an automatic slit adjusting device which comprises a rack arranged at the position close to a slit back roller, and the slit back roller can rotate to convey a film material; the scraper assembly is opposite to the slit back roller and is configured to change the coating amount of the surface of the membrane material; the height adjusting assembly is arranged on the rack and is configured to support the scraper assembly; the detection unit is arranged on the side, away from the scraper assembly, of the slit back roller and is configured to detect the bounce value of the slit back roller in real time, and the height adjusting assembly moves in the first direction in response to the change of the bounce value of the slit back roller so that the scraper assembly can be parallel to the slit back roller.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of coating processing, in particular to a slit automatic adjusting device. BACKGROUND

[0002] Vacuum evaporation coating is the main production method of composite current collector material, but in the coating process, the metal liquid surface is often unstable, the liquid surface boils, causing metal liquid droplets to splash onto the film material surface or the roller surface, resulting in defects such as splashing, concave-convex points and scratches on the coating product, which has a bad influence on the appearance of the product and the subsequent coating process. In the convex point detection equipment, a slit device is added to the slitting machine or rewinding machine, but due to the large runout value of the equipment guide shaft, the gap error between the slit driving scraper and the guide shaft is large. In order to solve the slit error problem, the slit device and the guide shaft need to be adjusted in real time and automatically to ensure the accuracy of the gap. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present disclosure is to provide a slit automatic adjusting device to solve the technical problems in the related art. The specific scheme is as follows:

[0004] The present disclosure provides a slit automatic adjusting device, comprising: a rack arranged at a position adjacent to a slit back roll, the slit back roll being rotatable to transport a film material; a scraper assembly opposite to the slit back roll and configured to change the coating amount on the surface of the film material; a height adjusting assembly arranged on the rack and connected with the scraper assembly, and configured to support the scraper assembly to adjust the height of the scraper assembly in a first direction, so that the scraper assembly is parallel to the slit back roll; and a detection unit arranged on a side of the slit back roll away from the scraper assembly and configured to detect the runout value of the slit back roll in real time, wherein, in response to a change in the runout value of the slit back roll, the height adjusting assembly moves in the first direction to make the scraper assembly parallel to the slit back roll.

[0005] In some embodiments, the height adjusting assembly comprises: a first adjusting mechanism and a second adjusting mechanism, the adjusting heights of the first adjusting mechanism and the second adjusting mechanism in the first direction being the same or different, and the first adjusting mechanism and the second adjusting mechanism being configured to make the scraper assembly parallel to the slit back roll.

[0006] In some embodiments, the height adjusting assembly comprises: a moving mechanism connected with the scraper assembly and configured to move the scraper assembly; and a driving mechanism comprising a driving motor and a speed reduction motor and configured to move the moving mechanism.

[0007] In some embodiments, the scraper assembly comprises: a scraper mounting frame connected with the height adjusting assembly;

[0008] A doctor is mounted on the doctor mounting frame and is configured to be in contact with the film material, wherein a first elastic member is arranged between the doctor and the doctor mounting frame, and the first elastic member is configured to improve the movement accuracy of the doctor.

[0009] In some embodiments, the moving mechanism comprises: a linear guide rail configured to limit the moving direction of the doctor assembly; a sliding part slidingly arranged on the linear guide rail, at least a part of the sliding part being fixedly connected with the doctor assembly; and a ball screw connected with the driving mechanism and configured to drive the sliding part to move along the linear guide rail.

[0010] In some embodiments, the moving mechanism further comprises: a cylinder assembly provided with a movable taper block at one end, the cylinder assembly being configured to drive the movable taper block to move in a second direction, the second direction being perpendicular to the first direction.

[0011] In some embodiments, the sliding part is provided with a fixed taper block at an end away from the linear guide rail, in response to the piston of the cylinder assembly extending out, the movable taper block is in contact with the inclined surface of the fixed taper block; in response to the piston of the cylinder assembly retracting, the movable taper block drives the doctor to move along the second direction.

[0012] In some embodiments, in the second direction, the detection unit and the doctor form an angle of 180°.

[0013] In some embodiments, the end of the slit back roll is provided with an encoder configured to detect the rotating speed of the slit back roll.

[0014] In some embodiments, the slit automatic adjusting device further comprises: a control unit configured to receive the bounce information and the rotating speed information of the slit back roll to adjust the position of the height adjusting assembly in the first direction.

[0015] Compared with the related art, the above-mentioned scheme of the embodiments of the present disclosure has at least the following beneficial effects:

[0016] The slit automatic adjusting device provided by the present disclosure can detect the bounce error of the slit back roll in real time through the detection unit, and adjust the gap size between the doctor assembly and the slit back roll in real time according to the bounce error, allowing the doctor assembly and the slit back roll to be installed in a state that the axes are not parallel, and the doctor assembly can be inclined according to the axis of the slit back roll to ensure that the axes of the doctor assembly and the slit back roll are parallel. The slit automatic adjusting device provided by the present disclosure has a calender assembly and a slit assembly, which can effectively reduce the height of defects such as splashing bumps on the surface of the composite current collector during the rewinding process, and simultaneously perform secondary detection on the height of defects such as bumps after calendering, thereby ensuring the neatness of the product end face and the tightness of the material roll.

[0017] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. It is readily apparent to one skilled in the art that the following description is merely exemplary and explanatory of the present disclosure and that various embodiments of the present disclosure can be readily obtained from the drawings, without resorting to inventive skill. In the drawings:

[0019] Figure 1 is a structural schematic diagram of a slit automatic adjusting device according to an exemplary embodiment.

[0020] Figure 2 is a structural schematic diagram of a base of a height adjusting assembly according to an exemplary embodiment.

[0021] Figure 3 is a structural schematic diagram of a height adjusting assembly according to an exemplary embodiment.

[0022] Figure 4 is a sectional view of a doctor blade assembly according to an exemplary embodiment.

[0023] Figure 5 is a sectional view of a slit automatic adjusting device according to an exemplary embodiment.

[0024] Figure 6 is an enlarged sectional view of a height adjusting assembly according to an exemplary embodiment. Reference signs:

[0025] frame 100; height adjusting assembly 200, base 210, first adjusting mechanism 221, second adjusting mechanism 222, air cylinder assembly 240, cylinder barrel 241, piston 242, movable taper block 243, driving motor 251, speed reduction motor 252, linear guide rail 261, sliding part 262, ball screw 263, fixed taper block 264;

[0026] doctor blade assembly 300, doctor blade mounting frame 310, stop part 311, doctor blade 320, fixing bolt 330, first elastic member 331, second elastic member 332;

[0027] detection unit 400; slit back roll 500;

[0028] film material 600; slit automatic adjusting device 1000. DETAILED DESCRIPTION

[0029] In order to make the purposes, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0030] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not intended to limit the present disclosure. The singular forms "a", "an" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, and other quantifiers are similar.

[0031] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, without departing from the scope of the embodiments of the present disclosure, the first can also be referred to as the second, and similarly, the second can also be referred to as the first. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship. The singular forms "a", "said" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0033] In the description of the present disclosure, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0034] It is also important to note that the terms "comprises" and / or "comprising," or other variations such as "includes," "including" or "contains," "containing," etc., shall not be construed as the use of an exclusive or exhaustive listing of the recited elements, but rather shall be read to mean that not all elements are listed and that other elements that are neither enumerated nor otherwise listed can be utilized. Ranges can be expressed as from about one particular value and / or to about another particular value. When such a range is expressed, it is to be understood that another embodiment is from the one particular value and / or to the other particular value.

[0035] Vacuum evaporation coating is the main production method of composite current collector material, but in the coating process, the metal liquid surface is often unstable, the liquid surface boils, causing metal liquid droplets to splash onto the film material surface or the roller surface, causing defects such as splashing, concave-convex points, scratches, etc. to the coating product, which has a bad influence on the appearance of the product and the subsequent coating process. In the related art, a slot device is usually added to a slitting machine or a rewinding machine, but due to the large runout value of the equipment manufacturing precision equipment guide shaft, the gap error between the slot driven scraper and the guide shaft is large. In order to solve the slot error problem, the slot device and the guide shaft need to be automatically adjusted in real time to ensure the accuracy of the gap.

[0036] To solve the problems in the related art, the present disclosure provides a slot automatic adjusting device, comprising: a rack for supporting a slot back roller, the slot back roller being rotatably arranged on the rack and configured to transport a film material; a scraper assembly opposite to the slot back roller and configured to change the coating amount on the surface of the film material; a height adjusting assembly arranged on the rack and connected with the scraper assembly, configured to adjust the height of the scraper assembly in the vertical direction of the rack, and configured to make the scraper assembly parallel to the slot back roller; a detection unit arranged on the side of the slot back roller away from the scraper assembly and configured to detect the runout value of the slot back roller in real time, wherein the vertical direction is a first direction; in response to the detection unit sending a first signal, the height adjusting assembly moves in the vertical direction; and the adjustment range of the height adjusting assembly is 0-3mm.

[0037] The slot automatic adjusting device provided by the present disclosure has an automatic adjustment range of 0-3mm and a positioning accuracy of 0.002mm. The detection unit can detect the runout error of the slot back roller in real time, and the gap size between the driven scraper assembly and the slot back roller can be adjusted in real time according to the runout error, allowing the scraper assembly and the slot back roller to be installed in a state of non-parallel axis. The scraper assembly can be inclined according to the axis of the slot back roller to ensure that the axis of the scraper assembly is parallel to that of the slot back roller.

[0038] In view of this, the optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0039] This disclosure provides an automatic slit adjustment device 1000, including: a frame 100, a doctor blade 320 assembly 300, a height adjustment assembly 200, and a detection assembly. The frame 100 is positioned adjacent to a slit back roller 500, which is rotatable to transport a film material 600. The frame 100 is configured to support the doctor blade 320 assembly 300 and the height adjustment assembly, such that the doctor blade 320 assembly 300 is positioned close to the slit back roller 500. The doctor blade 320 assembly 300 faces the slit back roller 500 and is configured to change the coating amount on the surface of the film material 600. The height adjustment assembly is located on the frame 100 and connected to the doctor blade 320 assembly 300, and is configured to adjust the height of the doctor blade 320 assembly 300 in the vertical direction of the frame 100, so that the doctor blade 320 assembly 300 is parallel to the slit back roller 500. The detection unit 400 is disposed on the side of the slit back roller 500 away from the scraper 320 assembly 300, and is configured to detect the runout value of the slit back roller 500 in real time, wherein the vertical direction is the first direction; in response to the detection unit 400 issuing a first signal, the height adjustment assembly moves in the vertical direction; the adjustment range of the height adjustment assembly 200 is 0-3mm.

[0040] Specifically, such as Figure 1 As shown, the frame 100 extends vertically, which is a first direction. The top of the frame 100 is connected to the height adjustment assembly 200. The scraper 320 assembly 300 is disposed on the height adjustment assembly 200. The height adjustment assembly 200 includes: a first adjustment mechanism 221 and a second adjustment mechanism 222, as shown. Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of a base 210 of a height adjustment assembly according to an exemplary embodiment. Figure 2 It can be seen that the first adjustment mechanism 221 and the second adjustment mechanism 222 are independently arranged along the length extension direction of the base 210. The adjustment height of the first adjustment mechanism 221 and the second adjustment mechanism 222 in the first direction can be the same or different, and are configured to make the scraper 320 assembly 300 parallel to the slit back roller 500.

[0041] In some embodiments, the height adjustment component 200 includes a moving mechanism and a driving mechanism, such as... Figure 3As shown, the moving mechanism includes a base 210, which is connected with at least part of the scraper 320 assembly 300 and configured to drive the scraper 320 assembly 300 to move. The driving mechanism includes a driving motor 251 and a speed reducer 252, which are configured to drive the moving mechanism to move and further drive the scraper 320 assembly 300 to move so as to make the scraper 320 assembly 300 close to the film material 600.

[0042] Specifically, the driving motor 251 can be a servo motor. The rotation of the driving motor 251 drives the moving mechanism to move through the speed reduction of the speed reducer 252. The speed reduction ratio of the speed reducer 252 can be 1:100. In this speed reduction ratio, the driving motor 251 can control the moving distance of the moving mechanism more accurately, and the scraper 320 assembly 300 can move in a preset moving range.

[0043] In some embodiments, the scraper 320 assembly 300 includes a scraper mounting frame 310 and a scraper 320. The scraper mounting frame 310 is connected with the height adjustment assembly, and the scraper 320 is mounted on the scraper mounting frame 310 and configured to contact the film material 600. The scraper mounting frame 310 includes an abutting portion, and a first elastic member 331 is arranged between the scraper 320 and the abutting portion. The first elastic member 331 is configured to improve the motion accuracy of the scraper 320. In response to the contact between the scraper 320 and the film material 600, the first elastic member 331 can be adaptively adjusted according to the pressure received by the scraper 320, so as to avoid excessive stress of the film material 600 caused by the scraper 320.

[0044] In some embodiments, as shown, Figure 4 The scraper 320 is pressed to the surface of the scraper mounting frame 310 by the combination of the fixing bolt 330 and the second elastic member 332, so as to avoid slit errors caused by equipment shaking, and the first elastic member 331 can also push the slit active scraper 320 to move.

[0045] In some embodiments, the moving mechanism includes a linear guide rail 261 configured to limit the moving direction of the scraper 320 assembly 300, a sliding part 262 slidingly arranged on the linear guide rail 261, at least part of the sliding part 262 being fixedly connected with the scraper 320 assembly 300, a ball screw 263 connected with the driving mechanism and configured to drive the sliding part 262 to move along the linear guide rail 261, and a fixed taper block 264 arranged at the end of the sliding part 262 away from the linear guide rail 261, the fixed taper block 264 moving synchronously with the sliding part 262.

[0046] Specifically, as shown, Figure 5 ,Figure 6 As shown, the ball screw 263 is connected with the driving mechanism through the moving mechanism, and in response to driving of the driving mechanism, the ball screw 263 rotates correspondingly to drive the sliding part 262 to move upwards or downwards along the first direction. Since the slit back roll 500 will have an irregular shaking or slight vibration phenomenon during movement, which is referred to as guide roll jumping. The guide roll jumping will not only affect the printing quality, but also easily cause damage to the equipment. Therefore, in order to overcome the guide roll jumping problem of the slit back roll 500, the moving distance of the sliding part 262 on the linear guide rail 261 is 0-3 mm, so that the scraper 320 assembly 300 can be adaptively adjusted according to the guide roll jumping of the slit back roll 500, and the scraper 320 assembly 300 is prevented from scratching the slit back roll 500 due to the guide roll jumping of the slit back roll 500.

[0047] In some embodiments, the moving mechanism further comprises a cylinder assembly 240, the cylinder assembly 240 comprising a cylinder barrel 241 and a piston 242, the piston 242 being provided with a movable wedge block 243 at an end away from the cylinder barrel 241, and being connected with a fixed wedge block 264 and configured to drive the fixed wedge block 264 to move in a second direction, wherein the second direction is the width direction of the base 210, and the second direction is perpendicular to the first direction. In response to the piston 242 of the cylinder assembly 240 extending out, the movable wedge block 243 is in contact with the inclined surface of the fixed wedge block 264, at this time, the scraper 320 assembly 300 can move along the first direction; in response to the piston 242 of the cylinder assembly 240 retracting, the movable wedge block 243 drives the scraper 320 to move along the second direction.

[0048] In some embodiments, the taper of the fixed wedge block 264 or the movable wedge block 243 can be 1:10. It is separately pointed out that the disclosure does not specifically limit the taper of the fixed wedge block 264 or the movable wedge block 243, and according to actual production needs, a higher taper ratio can be selected if higher precision is required.

[0049] In some embodiments, the detection unit 400 is arranged at the slit back roll 500, and in the second direction, the detection unit 400 and the scraper 320 form an angle of 180°. The detection unit 400 has two high-precision contact displacement sensors, which detect the jumping value of the slit back roll 500, and the detection width is the same as the width of the slit active scraper 320 and the positions correspond to each other. Meanwhile, the end of the slit back roll 500 is designed with an encoder configured to detect the rotating speed of the slit back roll 500.

[0050] In some embodiments, the slit automatic adjusting device 1000 further comprises a control unit configured to receive the jump information and the rotating speed information of the slit back roll 500 to adjust the position of the height adjusting assembly 200 in the vertical direction.

[0051] The specific structure, working principle and beneficial effects of the slit automatic adjusting device 1000 provided by the embodiments of the present disclosure can refer to the slit automatic adjusting device 1000 described in any of the above embodiments, which will not be repeated here.

[0052] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to. For the system or device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method part.

[0053] The above embodiments are only used to illustrate the technical solutions of the present disclosure, but not limit it; although the foregoing embodiments of the present disclosure are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A slit automatic adjusting device characterized by, The application relates to a slit automatic adjusting device. The device comprises: a rack arranged at a position adjacent to a slit back roll, the slit back roll being rotatable to convey a film material; a doctor blade assembly opposite to the slit back roll, configured to change the coating amount of the film material; a height adjusting assembly arranged on the rack, configured to support the doctor blade assembly; a detection unit arranged on a side of the slit back roll away from the doctor blade assembly, configured to detect the run-out value of the slit back roll in real time, 2. The automatic slit adjustment apparatus according to claim 1, wherein wherein, in response to the change of the run-out value of the slit back roll, the height adjusting assembly moves in a first direction to make the doctor blade assembly parallel to the slit back roll. The height adjusting assembly comprises:

3. The automatic slit adjustment apparatus according to claim 1, wherein a first adjusting mechanism and a second adjusting mechanism, the first adjusting mechanism and the second adjusting mechanism having the same or different adjusting heights in the first direction, and being configured to make the doctor blade assembly parallel to the slit back roll. The height adjusting assembly comprises: a moving mechanism connected to at least part of the doctor blade assembly, configured to drive the doctor blade assembly to move; 4. The automatic slit adjustment device according to claim 3, wherein a driving mechanism comprising a driving motor and a speed reducer, configured to drive the moving mechanism to move. The doctor blade assembly comprises: a doctor blade mounting frame connected to the height adjusting assembly; a doctor blade mounted on the doctor blade mounting frame, configured to contact the film material, 5. The automatic slit adjustment device according to claim 4, wherein wherein, a first elastic member is arranged between the doctor blade and the doctor blade mounting frame, and the first elastic member is configured to improve the movement precision of the doctor blade. The moving mechanism comprises: a linear guide rail configured to limit the moving direction of the doctor blade assembly; a sliding part slidingly arranged on the linear guide rail, at least part of the sliding part being fixedly connected to the doctor blade assembly; 6. The automatic slit adjustment device according to claim 5, wherein a ball screw connected to the driving mechanism, configured to drive the sliding part to move along the linear guide rail. The moving mechanism further comprises: a cylinder assembly provided with a movable taper block at one end, the cylinder assembly being configured to drive the movable taper block to move in a second direction perpendicular to the first direction.

7. The slit automatic adjusting device according to claim 6, wherein: an end of the sliding part away from the linear guide rail is provided with a fixed taper block, in response to the piston of the cylinder assembly extending out, the movable taper block is attached to the inclined surface of the fixed taper block, in response to the piston of the cylinder assembly retracting, the movable taper block drives the doctor blade to move along the second direction.

8. The slit automatic adjusting device according to claim 6, wherein: in the second direction, the detection unit and the doctor blade form an angle of 180 degrees.

9. The slit automatic adjusting device according to claim 1, wherein:

10. The automatic slit adjustment apparatus according to claim 7, wherein an encoder is arranged at the end of the slit back roll, configured to detect the rotating speed of the slit back roll. The device further comprises: a control unit configured to receive the run-out information and the rotating speed information of the slit back roll to adjust the position of the height adjusting assembly in the first direction.

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