Split type curtain coating device and method for MLCC ceramic membrane

Abstract

The invention belongs to the technical field of ceramic membrane tape casting, and discloses a split type tape casting coating device and method for an MLCC ceramic membrane, the split type tape casting coating device comprises a rolling assembly installed on a tape casting coating machine, and the rolling assembly comprises a separable driving mechanism. The separable driving mechanism comprises a driving shaft rotationally connected to the casting coating machine body, a connecting shaft coaxially arranged with the driving shaft, a first transmission shaft arranged on the inner wall of the connecting shaft in a sliding mode, a transmission groove formed in the end of the driving shaft, a telescopic groove formed in the end, close to the driving shaft, of the connecting shaft, and a baffle ring arranged on the outer wall of the driving shaft in a sliding and sleeving mode. The anti-disengaging ring is fixedly installed at the outer end of the first transmission shaft, the outer end of the first transmission shaft is sleeved with the first spring, the driving shaft penetrates through the installation plate and is rotationally connected with the installation plate, and the outer wall of the driving shaft and the outer wall of the connecting shaft are provided with thread teeth which are connected with each other. And by arranging the separable driving mechanism, the winding drum can be quickly disassembled and assembled.

Description

Technical Field

[0001] The present invention relates to the field of ceramic film casting, and more specifically, to a split casting and coating device and method for MLCC ceramic films. Background Art

[0002] In the manufacturing process of multi-layer ceramic capacitors (MLCCs), the tape casting process plays a crucial role. This process involves preparing a ceramic slurry with excellent fluidity by scientifically proportioning and efficiently mixing raw materials such as selected ceramic powders, specific solvents, binders, and plasticizers. Subsequently, using a precision casting head device equipped on a tape casting machine, the above-mentioned ceramic slurry is coated onto a special base film in a uniform and controllable manner. Under the continuous action of a hot air circulation drying system, the solvent component in the slurry gradually volatilizes, and finally solidifies to form a ceramic film with precise thickness, uniform density, and delicate texture.

[0003] The winding mechanisms of traditional casting and coating devices mostly adopt an integral drive structure, where the drive shaft and the winding roller are directly fixedly connected through a rigid coupling. When the winding roller needs to be replaced, this structure requires the entire drive unit to be shut down and disassembled, resulting in an extended production interruption time. Especially in large-scale production, frequent roll change operations will reduce the equipment utilization rate. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, this application proposes a split casting and coating device and method for MLCC ceramic films, which can quickly disassemble and install the winding cylinder by setting a separable drive mechanism.

[0005] To solve the above technical problems, the present invention proposes the following technical solution: A split casting and coating device for MLCC ceramic films, comprising a casting and coating machine, a drive assembly, and a winding assembly installed on the casting and coating machine;

[0006] The winding assembly includes a rotating mechanism and a separable drive mechanism;

[0007] The rotating mechanism includes a rotating shaft and a mounting plate rotatably connected to the rotating shaft;

[0008] The separable drive mechanism includes a drive shaft rotatably connected to the body of the casting and coating machine, a connecting shaft coaxially arranged with the drive shaft, a first transmission shaft slidably arranged inside the connecting shaft, a transmission groove opened at the end of the drive shaft, a telescopic groove opened at one end of the connecting shaft close to the drive shaft, a retaining ring slidably sleeved on the outer wall of the drive shaft, an anti-detachment ring fixedly installed at the outer end of the first transmission shaft, and a first spring sleeved on the outer end of the first transmission shaft;

[0009] The drive shaft penetrates through the mounting plate and is rotatably connected thereto;

[0010] The outer walls of the drive shaft and the connecting shaft are both provided with mutually engaged thread teeth;

[0011] A transmission pin is fixedly installed at the end of the first transmission shaft, and the end of the transmission pin is of an arc-shaped structure;

[0012] The transmission pin is slidably inserted into the transmission groove and the telescopic groove;

[0013] The retaining ring is fixedly connected to the first transmission shaft, and a sliding hole for the retaining ring to slide is formed in the outer wall of the drive shaft;

[0014] One end of the first spring is fixedly connected to the anti-detachment ring, and the other end is fixedly connected to the connecting shaft;

[0015] The drive assembly is in transmission connection with the drive shaft.

[0016] Preferably, the winding assembly further includes a limit guiding mechanism, the limit guiding mechanism includes a guiding frame fixedly connected to the body of the casting coater, the inner wall of the guiding frame is vertically and crossly sleeved with limit plates, a limit sliding rod is fixedly installed on the inner wall of the guiding frame, the limit sliding rod penetrates through the limit plate and is slidably connected to the limit plate, a notch is formed at the bottom of the guiding frame, and the notch is located at the end of the limit sliding rod.

[0017] Preferably, the drive assembly includes a second stepping motor and a base fixedly installed at the bottom of the second stepping motor, the base is fixedly installed on the side wall of the body of the casting coater, and the output end of the second stepping motor is fixedly connected to the drive shaft.

[0018] Preferably, a plurality of card slots are axially formed in the outer walls of the drive shaft and the connecting shaft, and the card slot ports on the drive shaft and the connecting shaft correspond to each other;

[0019] A limit ring is fixedly connected to the outer wall of the drive shaft, the limit ring is used for limiting the winding drum, a winding drum is sleeved on the outer wall of the drive shaft, a plurality of clamping plates are slidably connected to the inner wall of the winding drum, the clamping plates are respectively clamped and matched with the inner walls of the corresponding card slots, two connecting arms are fixedly connected to the outer walls of the clamping plates, the connecting arms are slidably connected to the inner wall of the winding drum, a first sliding rod is slidably connected to the inner wall of the connecting arms, a second spring is sleeved on the outer wall of the first sliding rod, the first sliding rod is fixedly installed on the inner wall of the winding drum, arc-shaped chamfers are formed at both ends of the clamping plate, one end of the second spring abuts against the inner wall of the winding drum, and the other end of the second spring abuts against the connecting arm.

[0020] Preferably, a butt joint ring is convexly formed at the end of the winding drum, and a plurality of clamping holes are formed in the outer wall of the butt joint ring;

[0021] A docking sleeve is slidably sleeved on the outer wall of the docking ring. An internal thread sleeve is fixedly connected to the inner wall of the docking sleeve. The internal thread sleeve is threadedly connected to the thread teeth on the outer walls of the driving shaft and the connecting shaft respectively;

[0022] A plurality of second sliding rods are fixedly connected to the outer wall of the docking sleeve. A third spring is sleeved on the outer wall of each second sliding rod. A retaining arm is slidably connected to the outer wall of each second sliding rod. One end of the third spring is fixedly connected to the retaining arm, and the other end of the third spring is fixedly connected to the docking sleeve. A clamping post is fixedly connected to the inner wall of each retaining arm. The end portions of the clamping posts respectively penetrate through the clamping holes on the docking ring and are slidably connected thereto;

[0023] An unlocking ring is fixedly connected to the outer wall of the guiding frame. The outer side wall of the unlocking ring is a conical surface. The unlocking ring is sleeved on the connecting shaft. There is a notch on the unlocking ring for the transverse passage of the limiting plate, and there is also a notch on the unlocking ring for the flipping passage of the connecting shaft.

[0024] Preferably, a first magnetic attraction clamping ring is fixedly connected to the end of the internal thread sleeve. A sliding sleeve is sleeved on the connecting shaft. The sliding sleeve is fixedly connected to the limiting plate. A first sleeve ring is fixedly connected to the outer wall of the sliding sleeve. A plurality of second transmission shafts are slidably connected to the inner wall of the first sleeve ring. A fourth spring is sleeved on the outer wall of each second transmission shaft. A second sleeve ring is provided on one side of the first sleeve ring close to the first magnetic attraction clamping ring. An installation sleeve is fixedly connected to the inner wall of the second sleeve ring. A second magnetic attraction clamping ring is fixedly connected to the end of the installation sleeve. The second magnetic attraction clamping ring is in clamping fit with the first magnetic attraction clamping ring. One end of the fourth spring is fixedly connected to the second sleeve ring, and the other end of the fourth spring is fixedly connected to the first sleeve ring.

[0025] Preferably, a method for a split casting and coating device for MLCC ceramic films includes the following steps:

[0026] S1. The positive rotation of the output end of the second stepping motor drives the driving shaft and the connecting shaft to rotate. The driving shaft drives the winding drum to rotate through the clamping plate for winding operation;

[0027] S2. During disassembly, slide the limiting plate to make the second magnetic attraction clamping ring engage with the first magnetic attraction clamping ring and magnetically attract and engage;

[0028] S3. The second stepping motor drives the winding drum to rotate in the reverse direction, and the internal thread sleeve spirally moves along the driving shaft towards the connecting shaft;

[0029] S4. Until the winding drum completely moves onto the connecting shaft, the unlocking ring blocks the retaining arm, causing the clamping post to slide out of the docking ring, and the docking sleeve is disengaged from the connection with the winding drum;

[0030] S5. The docking sleeve continues to move spirally along the connecting shaft, the sliding sleeve squeezes the retaining ring, the transmission pin slides out of the drive shaft, the limiting plate slides out of the limiting slide bar, the connecting shaft drives the rotating shaft to rotate, and the winding drum slides out of the connecting shaft to disassemble the winding drum.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] In the present invention, by squeezing the retaining ring, the sliding sleeve slides along the inner wall of the sliding hole and drives the first transmission shaft to move. The first transmission shaft drives the transmission pin to slide out of the drive shaft. At the same time, the limiting plate slides out of the limiting slide bar. Under the action of gravity, the connecting shaft drives the rotating shaft to rotate through the mounting plate, and the limiting plate slides out of the bottom notch of the guiding frame, and the connecting shaft rotates downward;

[0033] By setting a separable drive mechanism, the winding drum can be quickly disassembled and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the overall structure of the coating assembly of the present invention;

[0037] Figure 3 It is a schematic diagram of the installation structure of the casting head of the present invention;

[0038] Figure 4 It is a schematic diagram of the installation structure of the winding drum of the present invention;

[0039] Figure 5 It is a schematic diagram of the installation structure of the limiting plate of the present invention;

[0040] Figure 6 It is a schematic diagram of the overall structure of the unlocking ring of the present invention;

[0041] Figure 7 It is a partial structure schematic diagram of the guiding frame of the present invention;

[0042] Figure 8 It is a schematic diagram of the installation structure of the docking sleeve of the present invention;

[0043] Figure 9 It is a schematic diagram of the installation structure of the limiting ring of the present invention;

[0044] Figure 10 Schematic diagram of the connection structure between the drive shaft and the connecting shaft of the present invention;

[0045] Figure 11 For the present invention Figure 10 Enlarged view at position A in;

[0046] Figure 12 For the present invention Figure 10 Enlarged view at position B in;

[0047] Figure 13 For the present invention Figure 8 Partial structure schematic diagram of;

[0048] Figure 14 Schematic diagram of the installation structure of the clamping plate of the present invention;

[0049] Figure 15 Schematic diagram of the installation structure of the connecting arm of the present invention;

[0050] Figure 16 Schematic diagram of the installation structure of the retaining arm of the present invention;

[0051] Figure 17 Schematic diagram of the installation structure of the internal thread sleeve of the present invention;

[0052] Figure 18 Schematic diagram of the installation structure of the second collar of the present invention;

[0053] Figure 19 Schematic diagram of the installation structure of the second magnetic suction clamping ring of the present invention.

[0054] Reference numerals in the figure:

[0055] 1. Casting coater;

[0056] 2. Coating assembly;

[0057] 201. Bracket;

[0058] 202. First stepping motor; 203. Bidirectional screw; 204. Support plate; 205. Guide rod; 206. Screw sleeve; 207. First support plate; 208. Second support plate; 210. First connecting plate; 211. Second connecting plate;

[0059] 209. Casting head;

[0060] 3. Rewinding assembly;

[0061] 301. Machine base; 302. Second stepping motor;

[0062] 303. Guide frame; 304. Limit slide bar; 305. Limit plate;

[0063] 306. Rotating shaft; 307. Mounting plate;

[0064] 308. Unlocking ring;

[0065] 309. Driving shaft; 310. Connecting shaft; 311. Limiting ring; 312. Card slot; 313. Retaining ring; 314. First transmission shaft; 315. Transmission pin; 316. Telescopic slot; 317. First spring; 318. Anti - detachment ring; 319. Slide hole;

[0066] 320. Take - up reel; 321. Docking ring; 322. Card board; 323. Chamfer; 324. Connecting arm; 325. First slide bar; 326. Second spring;

[0067] 327. Docking sleeve; 328. Internal thread sleeve; 329. First magnetic attraction clamping ring; 330. Second slide bar; 331. Blocking arm; 332. Clamping post; 333. Third spring;

[0068] 334. Slide sleeve; 335. First collar; 336. Second transmission shaft; 337. Mounting sleeve; 338. Second collar; 339. Fourth spring; 340. Second magnetic attraction clamping ring. Detailed implementation mode

[0069] To make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. The following will make a detailed description of the specific implementation mode of the present invention with reference to the drawings of the specification.

[0070] As Figure 1 、 Figure 4 and Figures 8 - 12 shown, a split - type casting and coating device for MLCC ceramic film includes a casting and coating machine 1, a driving assembly, and a take - up assembly 3 installed on the casting and coating machine 1;

[0071] The take - up assembly 3 includes a rotating mechanism and a separable driving mechanism;

[0072] The rotating mechanism includes a rotating shaft 306 and a mounting plate 307 rotatably connected to the rotating shaft 306;

[0073] The separable drive mechanism includes a drive shaft 309 rotatably connected to the body of the casting coater 1, a connecting shaft 310 coaxially arranged with the drive shaft 309, a first transmission shaft 314 slidably arranged on the inner wall of the connecting shaft 310, a transmission groove opened at the end of the drive shaft 309, a telescopic groove 316 opened at one end of the connecting shaft 310 close to the drive shaft 309, a retaining ring 313 slidably sleeved on the outer wall of the drive shaft 309, an anti - detachment ring 318 fixedly installed at the outer end of the first transmission shaft 314, and a first spring 317 sleeved on the outer end of the first transmission shaft 314;

[0074] The drive shaft 309 penetrates through the mounting plate 307 and is rotatably connected thereto;

[0075] Threaded teeth that are mutually connected are provided on the outer walls of both the drive shaft 309 and the connecting shaft 310; the drive shaft 309 and the connecting shaft 310 are coaxially arranged, and threaded teeth that are mutually connected are provided on the outer walls, achieving the continuity and stability of power transmission;

[0076] A transmission pin 315 is fixedly installed at the end of the first transmission shaft 314, and the transmission pin 315 is slidably inserted into the transmission groove and the telescopic groove 316; the retaining ring 313 is fixedly connected to the first transmission shaft 314, and a sliding hole 319 for the retaining ring 313 to slide is opened on the outer wall of the drive shaft 309; one end of the first spring 317 is fixedly connected to the anti - detachment ring 318, and the other end is fixedly connected to the connecting shaft 310; through the cooperation of the first transmission shaft 314, the transmission pin 315 and the telescopic groove 316, the rapid separation and engagement of the drive shaft 309 and the connecting shaft 310 can be realized, achieving the effect of facilitating disassembly;

[0077] The end of the transmission pin 315 is of an arc - shaped structure; the arc - shaped end enables the transmission pin 315 to adapt to the insertion angle of the transmission groove, reducing the frictional loss during docking.

[0078] The drive assembly is in transmission connection with the drive shaft 309.

[0079] Most traditional winding devices adopt fixed couplings or rigid clamping structures, which require tool assistance for disassembly and are prone to wear. In the above - mentioned structure of the present invention, through the spiral guiding action of the threaded teeth and the elastic insertion of the transmission pin 315, the automatic alignment and flexible engagement of the drive shaft 309 and the connecting shaft 310 are realized. The cooperation of the pre - tightening force of the first spring 317 and the arc - shaped transmission pin 315 forms a double protection of self - locking and buffering.

[0080] Most traditional split - type winding devices need to be additionally provided with locking bolts or hydraulic fixtures. In the above - mentioned structure of the present invention, by arranging the transmission pin 315, the telescopic groove 316 and the spring 317 inside the connecting shaft 310, the separation, engagement and limitation between structures are realized, reducing external auxiliary components and lowering the assembly complexity.

[0081] Such as Figure 4 、Figure 5 and Figure 7 As shown in Figure 7 , the rewinding assembly 3 further includes a limiting and guiding mechanism. The limiting and guiding mechanism includes a guiding frame 303 fixedly connected to the body of the casting coater 1. The inner wall of the guiding frame 303 is vertically and crosswise sleeved with a limiting plate 305. The inner wall of the guiding frame 303 is fixedly installed with a limiting slide bar 304. The limiting slide bar 304 penetrates through the limiting plate 305 and is slidably connected to the limiting plate 305. A notch is formed at the bottom of the guiding frame 303, and the notch is located at the end of the limiting slide bar 304. The notch at the bottom of the guiding frame 303 corresponds to the end of the limiting slide bar 304, allowing the connecting shaft 310 to flip downward and disengage, realizing the release of the rewinding cylinder 320.

[0082] As Figure 4 shown, the driving assembly includes a second stepping motor 302 and a base 301 fixedly installed at the bottom of the second stepping motor 302. The base 301 is fixedly installed on the side wall of the body of the casting coater 1. The output end of the second stepping motor 302 is fixedly connected to a driving shaft 309.

[0083] As Figure 8 、 Figure 14 and Figure 15 shown, a plurality of card slots 312 are axially formed on the outer walls of the driving shaft 309 and the connecting shaft 310, and the ports of the card slots 312 on the driving shaft 309 and the connecting shaft 310 correspond to each other;

[0084] A limiting ring 311 is fixedly connected to the outer wall of the driving shaft 309. The limiting ring 311 is used to limit the rewinding cylinder 320. The outer wall of the driving shaft 309 is sleeved with a rewinding cylinder 320. A plurality of clamping plates 322 are slidably connected to the inner wall of the rewinding cylinder 320. The clamping plates 322 are respectively clamped and matched with the inner walls of the corresponding card slots 312. Two connecting arms 324 are fixedly connected to the outer walls of the clamping plates 322. The connecting arms 324 are slidably connected to the inner wall of the rewinding cylinder 320. A first slide bar 325 is slidably connected to the inner wall of the connecting arm 324. A second spring 326 is sleeved on the outer wall of the first slide bar 325. The first slide bar 325 is fixedly installed on the inner wall of the rewinding cylinder 320. Arc-shaped chamfers 323 are formed at both ends of the clamping plate 322. One end of the second spring 326 abuts against the inner wall of the rewinding cylinder 320, and the other end of the second spring 326 abuts against the connecting arm 324.

[0085] As Figure 6 、 Figure 14 and Figures 16 - 19 shown, a docking ring 321 is formed by outward protrusion at the end of the rewinding cylinder 320, and a plurality of clamping holes are formed on the outer wall of the docking ring 321;

[0086] A docking sleeve 327 is slidably sleeved on the outer wall of the docking ring 321. An internal thread sleeve 328 is fixedly connected to the inner wall of the docking sleeve 327. The internal thread sleeve 328 is threadedly connected to the thread teeth on the outer walls of the driving shaft 309 and the connecting shaft 310 respectively;

[0087] A plurality of second sliding rods 330 are fixedly connected to the outer wall of the docking sleeve 327. Third springs 333 are sleeved on the outer walls of the second sliding rods 330. The outer walls of the second sliding rods 330 are slidably connected with retaining arms 331. One end of each third spring 333 is fixedly connected to the retaining arm 331, and the other end of each third spring 333 is fixedly connected to the docking sleeve 327. Clamping posts 332 are fixedly connected to the inner walls of the retaining arms 331. The ends of the clamping posts 332 respectively penetrate through and are slidably connected with the clamping holes on the docking ring 321.

[0088] An unlocking ring 308 is fixedly connected to the outer wall of the guiding frame 303. The outer side wall of the unlocking ring 308 is a conical surface. The design of the conical surface enables the unlocking ring 308 to gradually squeeze the arc ends of the retaining arms 311, completing the release of the winding drum 320. The unlocking ring 308 is sleeved on the connecting shaft 310. There is a notch on the unlocking ring 308 for the transverse passage of the limiting plate 305, and there is also a notch on the unlocking ring 308 for the flipping passage of the connecting shaft 310.

[0089] When disassembling the traditional winding device, it is necessary to manually adjust the limiting components, which is cumbersome and prone to accidental touch. In the above structure of the present invention, the bottom notch of the guiding frame 303 cooperates with the end of the limiting sliding rod 304. When the connecting shaft 310 flips under the action of gravity, the limiting plate 305 automatically slides out from the notch, realizing gravity-triggered unlocking.

[0090] For the existing split-type winding device, it is necessary to manually operate the buckle or use tools to separate the connecting parts. In the above structure of the present invention, when the internal thread sleeve 328 of the docking sleeve 327 rotates in the reverse direction, it drives the winding drum 320 to axially move. At the same time, the conical surface of the unlocking ring 308 squeezes the retaining arm 331, forcing the clamping post 332 to disengage from the docking ring 321, realizing the unlocking function through rotation and displacement, and deeply combining the power transmission and separation actions.

[0091] As Figures 18 - 19 shown, a first magnetic attraction clamping ring 329 is fixedly connected to the end of the internal thread sleeve 328. A sliding sleeve 334 is sleeved on the connecting shaft 310. The sliding sleeve 334 is fixedly connected to the limiting plate 305. A first collar 335 is fixedly connected to the outer wall of the sliding sleeve 334. A plurality of second transmission shafts 336 are slidably connected to the inner wall of the first collar 335. Fourth springs 339 are sleeved on the outer walls of the second transmission shafts 336. A second collar 338 is provided on one side of the first collar 335 close to the first magnetic attraction clamping ring 329. An installation sleeve 337 is fixedly connected to the inner wall of the second collar 338. A second magnetic attraction clamping ring 340 is fixedly connected to the end of the installation sleeve 337. The second magnetic attraction clamping ring 340 is in clamping cooperation with the first magnetic attraction clamping ring 329. One end of each fourth spring 339 is fixedly connected to the second collar 338, and the other end of each fourth spring 339 is fixedly connected to the first collar 335.

[0092] Traditional magnetic attraction connection lacks axial buffering and is prone to magnet fragmentation due to impact. In the above structure of the present invention, the second transmission shaft 336 and the fourth spring 339 form a floating transmission structure, allowing axial fine adjustment when the magnetic attraction snap ring is engaged, absorbing impact energy through the fourth spring 339, and improving connection reliability through magnetic attraction positioning and spring buffering.

[0093] As Figures 1 - 3 shown, a coating assembly 2 is fixedly installed on the casting coater 1. The coating assembly 2 includes a bracket 201 and two casting heads 209. The bracket 201 is fixedly installed on the casting coater 1. A first stepping motor 202 is fixedly installed on the outer wall of the bracket 201. A support plate 204 is fixedly connected to the inner wall of the bracket 201. A bidirectional screw 203 is rotatably connected between the bracket 201 and the support plate 204. A guide rod 205 is fixedly connected between the bracket 201 and the support plate 204. Both ends of the bidirectional screw 203 are threadedly connected with screw sleeves 206. A first support plate 207 is rotatably connected to the outer wall of one screw sleeve 206, and a second support plate 208 is rotatably connected to the outer wall of the other screw sleeve 206. The outer wall of the guide rod 205 is slidably connected with a first connecting plate 210 and a second connecting plate 211 respectively. The bottom of one casting head 209 is fixedly connected to the top of the first support plate 207 and the first connecting plate 210 respectively. The bottom of the other casting head 209 is fixedly connected to the top of the second support plate 208 and the second connecting plate 211 respectively.

[0094] The first stepping motor 202 drives the bidirectional screw 203 to rotate, causing the two screw sleeves 206 to move synchronously and reversely along the bidirectional screw 203 respectively. The casting heads 209 are driven to move through the screw sleeves 206. When the casting heads 209 move, they drive the first connecting plate 210 and the second connecting plate 211 to slide along the guide rod 205 respectively, enabling adjustment according to the widths of the two groups of films and simultaneously coating the two groups of combined base films, which can improve the coating efficiency.

[0095] Working principle: The positive rotation of the output end of the second stepping motor 302 drives the drive shaft 309 to rotate. When the drive shaft 309 rotates, it drives the connecting shaft 310 to rotate. At the same time, the drive shaft 309 drives the take-up reel 320 to rotate through the card slot 312 and the clamping plate 322 for the take-up operation;

[0096] During disassembly, the limit plate 305 is slid, the limit plate 305 drives the sliding sleeve 334 to move, and the sliding sleeve 334 drives the second magnetic attraction snap ring 340 to be clamped with the first magnetic attraction snap ring 329 and magnetically attracted and engaged.

[0097] The second stepping motor 302 drives the take-up reel 320 to rotate in the reverse direction. When the take-up reel 320 rotates, it drives the docking sleeve 327 to rotate, and the docking sleeve 327 drives the internally threaded sleeve 328 to rotate. At this time, the internally threaded sleeve 328 spirally moves along the drive shaft 309 towards the outer wall of the connecting shaft 310. The first magnetic attraction clamping ring 329 pushes the sliding sleeve 334 to move through the second magnetic attraction clamping ring 340, and the sliding sleeve 334 drives the limiting plate 305 to slide along the outer wall of the limiting slide bar 304;

[0098] The take-up reel 320 drives the clamping plate 322 to slide along the card slot 312 on the drive shaft 309 into the card slot 312 on the connecting shaft 310 until the take-up reel 320 completely moves onto the connecting shaft 310. The unlocking ring 308 blocks the retaining arm 331. When the take-up reel 320 moves, it drives the retaining arm 331 to squeeze the outer wall of the unlocking ring 308. The retaining arm 331 slides along the second slide bar 330, and the retaining arm 331 drives the clamping post 332 to slide out of the docking ring 321, so that the docking sleeve 327 is disengaged from the connection with the take-up reel 320;

[0099] The drive shaft 309 continues to drive the connecting shaft 310 to rotate. The docking sleeve 327 continues to spiral move along the connecting shaft 310 and pushes the sliding sleeve 334 to continue moving. The sliding sleeve 334 squeezes the retaining ring 313, and the sliding sleeve 334 slides along the inner wall of the sliding hole 319 and drives the first transmission shaft 314 to move. The first transmission shaft 314 drives the transmission pin 315 to slide out of the drive shaft 309. At the same time, the limiting plate 305 slides out of the limiting slide bar 304. Under the action of gravity, the connecting shaft 310 drives the rotating shaft 306 to rotate through the mounting plate 307. The limiting plate 305 slides out from the bottom notch of the guiding frame 303, and the connecting shaft 310 rotates downward and flips out from the bottom notch of the unlocking ring 308. The take-up reel 320 slides out from the connecting shaft 310, realizing the automatic disassembly of the take-up reel 320;

[0100] During installation, a new take-up reel 320 is sleeved on the connecting shaft 310, so that the clamping plate 322 in the take-up reel 320 is clamped with the card slot 312 on the connecting shaft 310. The connecting shaft 310 is rotated to be parallel to the drive shaft 309. At this time, the limiting plate 305 rotates into its interior through the notch at the bottom of the guiding frame 303. The docking sleeve 327 is rotated in the reverse direction, and the limiting plate 305 slides back onto the limiting slide bar 304 again, so that the sliding sleeve 334 is disengaged from the extrusion of the retaining ring 313. Under the pulling force of the first spring 317, the first transmission shaft 314 drives the transmission pin 315 to insert into the drive shaft 309, connecting the connecting shaft 310 and the drive shaft 309 together. The docking ring 321 at the end of the take-up reel 320 is inserted into the docking sleeve 327. Under the elastic force of the third spring 333, the second slide bar 330 is inserted into the docking ring 321, connecting the take-up reel 320 and the docking sleeve 327;

[0101] The second stepping motor 302 drives the drive shaft 309 and the connecting shaft 310 to rotate forward. The internally threaded sleeve 328 moves spirally along the connecting shaft 310 towards the drive shaft 309 until the end of the winding drum 320 contacts the limit ring 311. At the same time, the internally threaded sleeve 328 limits the winding drum 320.

[0102] Slide the reverse sliding sleeve 334 to separate the second magnetic attraction clamping ring 340 from the first magnetic attraction clamping ring 329. At this time, the second stepping motor 302 drives the drive shaft 309 to rotate, and then drives the winding drum 320 to rotate to wind the film.

[0103] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A split type casting coating device for MLCC ceramic film, characterized in that: include: A casting coater (1), and a winding assembly (3) mounted on the casting coater (1); The winding assembly (3) comprises: A rotating mechanism, the rotating mechanism comprising a rotating shaft (306) and a mounting plate (307) rotatably connected to the rotating shaft (306); A detachable driving mechanism, the detachable driving mechanism comprising: A drive shaft (309) rotatably connected to the body of the cast coating machine (1), wherein the drive shaft (309) passes through the mounting plate (307) and is rotatably connected thereto; A connecting shaft (310) is coaxially arranged with the driving shaft (309), wherein the outer walls of the driving shaft (309) and the connecting shaft (310) are both provided with mutually engaged threaded teeth; A first transmission shaft (314) is slidably arranged on the inner wall of the connecting shaft (310), a transmission pin (315) is fixedly mounted on the end of the first transmission shaft (314), and the end of the transmission pin (315) is an arc-shaped structure; A transmission groove is provided at the end of the driving shaft (309), and a telescopic groove (316) is provided at one end of the connecting shaft (310) close to the driving shaft (309), wherein the transmission pin (315) is slidably inserted into the transmission groove and the telescopic groove (316); A retaining ring (313) is slidably sleeved on the outer wall of the driving shaft (309), the retaining ring (313) is fixedly connected to the first transmission shaft (314), and the outer wall of the driving shaft (309) is provided with a sliding hole (319) for the retaining ring (313) to slide; An anti-slip ring (318) fixedly mounted on the outer end of the first transmission shaft (314), and a first spring (317) sleeved on the outer end of the first transmission shaft (314), wherein one end of the first spring (317) is fixedly connected to the anti-slip ring (318), and the other end is fixedly connected to the connecting shaft (310); A drive assembly is in driving connection with the drive shaft (309).

2. The split type casting coating device for MLCC ceramic film according to claim 1, characterized in that: The winding assembly (3) also includes a limiting guide mechanism, which includes a guide frame (303) fixedly connected to the body of the cast coating machine (1), the inner wall of the guide frame (303) is vertically cross-sheathed with a limiting plate (305), the inner wall of the guide frame (303) is fixedly installed with a limiting slide bar (304), the limiting slide bar (304) passes through the limiting plate (305) and is slidably connected to the limiting plate (305), and a notch is opened at the bottom of the guide frame (303), and the notch is located at the end of the limiting slide bar (304).

3. The split type casting coating device for MLCC ceramic film according to claim 2, characterized in that: The driving assembly comprises a second stepping motor (302) and a base (301) fixedly mounted on the bottom of the second stepping motor (302); the base (301) is fixedly mounted on the side wall of the casting coating machine (1); and the output end of the second stepping motor (302) is fixedly connected to the driving shaft (309).

4. The split type tape casting coating device for MLCC ceramic film according to claim 3, characterized in that: The outer walls of the driving shaft (309) and the connecting shaft (310) are both provided with a plurality of slots (312) along the axial direction, and the slots (312) on the driving shaft (309) and the connecting shaft (310) have corresponding ports; The outer wall of the driving shaft (309) is fixedly connected to a limit ring (311), and the limit ring (311) is used to limit the winding drum (320). The outer wall of the driving shaft (309) is sleeved with a winding drum (320), and the inner wall of the winding drum (320) is slidably connected with a plurality of clamping plates (322), and the clamping plates (322) are respectively engaged with the inner walls of the corresponding clamping grooves (312). The outer walls of the clamping plates (322) are fixedly connected with two connecting arms (324), and the connecting arms (324) are slidably connected to the inner wall of the winding drum (320). The inner wall of the connecting arms (324) is slidably connected with a first sliding rod (325), and the outer wall of the first sliding rod (325) is sleeved with a second spring (326). The first sliding rod (325) is fixedly installed on the inner wall of the winding drum (320), and arc-shaped chamfers (323) are provided at both ends of the clamping plates (322).

5. The split type tape casting coating device for MLCC ceramic film according to claim 4, characterized in that: One end of the second spring (326) abuts against the inner wall of the winding drum (320), and the other end of the second spring (326) abuts against the connecting arm (324).

6. The split type casting coating device for MLCC ceramic film according to claim 5, characterized in that: The end of the winding drum (320) is convexly formed with a docking ring (321), and the outer wall of the docking ring (321) is provided with a plurality of clamping holes; The outer wall sliding sleeve of the docking ring (321) is provided with a docking sleeve (327), the inner wall of the docking sleeve (327) is fixedly connected with an internal thread sleeve (328), and the internal thread sleeve (328) is threadedly connected with the threads of the outer walls of the driving shaft (309) and the connecting shaft (310) respectively; The outer wall of the docking sleeve (327) is fixedly connected with a plurality of second sliding rods (330), the outer wall of each of the second sliding rods (330) is sleeved with a third spring (333), the outer wall of each of the second sliding rods (330) is slidably connected with a blocking arm (331), one end of the third spring (333) is fixedly connected to the blocking arm (331), the other end of the third spring (333) is fixedly connected to the docking sleeve (327), the inner wall of the blocking arm (331) is fixedly connected with a clamping column (332), the ends of the clamping column (332) respectively pass through the clamping holes on the docking ring (321) and are slidably connected thereto.

7. The split type casting coating device for MLCC ceramic film according to claim 6, characterized in that: An unlocking ring (308) is fixedly connected to the outer wall of the guide frame (303); the outer wall of the unlocking ring (308) is a conical surface; the unlocking ring (308) is sleeved on the connecting shaft (310); a notch is provided on the unlocking ring (308) for the limiting plate (305) to pass horizontally; and a notch is also provided on the unlocking ring (308) for the connecting shaft (310) to pass through in a flipping manner.

8. The split type tape casting coating device for MLCC ceramic film according to claim 7, characterized in that: The end of the internal threaded sleeve (328) is fixedly connected with a first magnetic clamp ring (329), the connecting shaft (310) is sleeved with a sliding sleeve (334), the sliding sleeve (334) is fixedly connected to the limiting plate (305), the outer wall of the sliding sleeve (334) is fixedly connected with a first ring (335), the inner wall of the first ring (335) is slidably connected with a plurality of second transmission shafts (336), the outer walls of the second transmission shafts (336) are sleeved with a fourth spring (339), the first ring (335) is provided with a second ring (338) on the side close to the first magnetic clamp ring (329), the inner wall of the second ring (338) is fixedly connected with an installation sleeve (337), the end of the installation sleeve (337) is fixedly connected with a second magnetic clamp ring (340), the second magnetic clamp ring (340) is snap-fitted with the first magnetic clamp ring (329).

9. The split type tape casting coating device for MLCC ceramic film according to claim 8, characterized in that: One end of the fourth spring (339) is fixedly connected to the second ring (338), and the other end of the fourth spring (339) is fixedly connected to the first ring (335).

10. A method for a split-type tape-casting coating device for MLCC ceramic films, applicable to the split-type tape-casting coating device for MLCC ceramic films as claimed in claim 9, characterized in that: The following steps are involved: S1, the output end of the second stepper motor (302) rotates in the positive direction to drive the driving shaft (309) and the connecting shaft (310) to rotate, and the driving shaft (309) drives the winding drum (320) to rotate through the clamping plate (322) to perform the winding operation; S2. During disassembly, the limiting plate (305) is slid to engage the second magnetic clamp ring (340) with the first magnetic clamp ring (329) and to engage them by magnetic attraction; S3, the second stepping motor (302) drives the winding drum (320) to rotate in the opposite direction, and the internal thread sleeve (328) moves spirally along the driving shaft (309) toward the connecting shaft (310); S4, until the winding drum (320) is completely moved onto the connecting shaft (310), the unlocking ring (308) blocks the blocking arm (331), so that the clamping column (332) slides out of the docking ring (321), and the docking sleeve (327) is disconnected from the winding drum (320); S5, the docking sleeve (327) continues to move spirally along the connecting shaft (310), the sliding sleeve (334) squeezes the retaining ring (313), the transmission pin (315) slides out from the driving shaft (309), the limiting plate (305) slides out from the limiting sliding rod (304), the connecting shaft (310) drives the rotating shaft (306) to rotate, the winding drum (320) slides out from the connecting shaft (310), and the winding drum (320) is disassembled.

Images