MLCC high-speed precise film casting machine

Abstract

The invention relates to the technical field of full-automatic thin film casting machines, in particular to an MLCC high-speed precise thin film casting machine which comprises a pushing plate and a coating roller. The pushing plate is hydraulically driven, one side of the pushing plate is provided with a supply measuring unit for providing hydraulic driving force for the pushing plate, the supply measuring unit comprises a storage box and a first pressure sensor, hydraulic oil is stored in the storage box, the storage box supplies oil to the pushing plate, and the first pressure sensor is arranged at the bottom of the storage box; the horizontal cross-sectional area of the storage box is constant, the first pressure sensor is used for monitoring the mass variation of hydraulic oil in the storage box when the pushing plate moves, and a processor is further arranged on the storage box and calculates the height variation of the hydraulic oil according to the mass variation and the horizontal cross-sectional area of the storage box. And the height change quantity is the same as the total moving change quantity of the two pushing plates. The use cost is reduced, and the accuracy of the thickness of the base material is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of fully automatic film casting machines, and in particular to an MLCC high-speed precision film casting machine. Background Art

[0002] Multilayer ceramic chip capacitors (MLCC), referred to as chip capacitors, the existing technology requires the thickness of MLCC film sheets to be thinner and thinner, and the existing MLCC film casting machines are difficult to accurately control the thickness of MLCC films. Chinese patent CN114905683B discloses an MLCC high-speed precision fully automatic film casting machine, which is used to coat the slurry on the surface of the substrate, including a material guiding device, and a feeding device, a coating device, a drying device and a collecting device arranged in sequence along the forward direction of the substrate; the material guiding device is respectively arranged between the feeding device and the coating device, between the coating device and the drying device, and between the drying device and the collecting device; the feeding device is used to place the material roll to be processed and release the substrate to be processed in the material roll to be processed; the coating device includes A coating bracket, a thickness adjustment mechanism and a coating die head, wherein the thickness adjustment mechanism comprises a gap adjustment driving member installed on the coating bracket and two coating rollers rotatably installed on the coating bracket and arranged in parallel, the gap adjustment driving member is connected to the coating roller to adjust the gap between the two coating rollers, the coating die head is installed on the coating bracket, and the coating die head is used to coat the substrate conveyed by the coating roller with slurry; the drying device is used to dry the substrate coated with slurry; the collecting device is used to wind the dried substrate into a finished material roll.

[0003] The above scheme controls the thickness of the substrate by adjusting the gap between the two coating rollers. However, there are limitations to controlling the thickness by only adjusting the distance between the two coating rollers. The existing adjustment device has limited precision during adjustment and is prone to errors due to mechanical wear after long-term use. As a result, when the coating rollers are adjusted by the adjustment device, there is a tendency for the actual thickness between the two coating rollers to differ from the preset thickness, and the accuracy cannot be guaranteed after long-term use. Summary of the invention

[0004] In view of the above problems, an MLCC high-speed precision film casting machine is provided. Before use, the two coating rollers are close to and in contact with each other. At this time, the distance between the coating rollers is zero. A hydraulic chamber is sleeved on the outer side of a push plate. The push plate can slide in the hydraulic chamber. Then the storage tank supplies hydraulic oil to the two hydraulic chambers. Under the action of the hydraulic oil, the two push plates respectively drive the two coating rollers to separate. Since the hydraulic oil in the storage tank needs to be supplied to the two hydraulic chambers in equal parts, and the horizontal cross-sectional area of ​​the two hydraulic chambers is the same as the horizontal cross-sectional area of ​​the storage tank, the total movement of the two push plates is the same as the height change of the hydraulic oil in the storage tank. The distance between the two coating rollers is controlled by pressurized oil, which avoids the traditional adjustment device controlling the movement of the coating roller by mechanical means, and a first pressure sensor is arranged at the bottom of the storage box. The height change of the hydraulic oil in the storage box is inferred by the change in the mass of the hydraulic oil detected by the first pressure sensor. There is no need to set up an additional distance meter to monitor the moving coating roller, which reduces the cost of use and ensures accuracy. The coating roller is driven to move by hydraulic means and is hydraulically locked after reaching the specified position, which avoids mechanical wear in traditional mechanical transmission. It has high precision and enables the film casting machine to adapt to the processing of thinner substrates.

[0005] In order to solve the problems of the prior art, the present invention provides an MLCC high-speed precision film casting machine, comprising two vertically arranged pushing plates and coating rollers arranged on the two pushing plates; the two pushing plates can drive the two coating rollers to move closer to or away from each other, the pushing plates are driven by hydraulic pressure, and a supply and measurement unit for providing hydraulic driving force for the pushing plates is arranged on one side of the pushing plates, the supply and measurement unit comprises a storage box and a first pressure sensor, hydraulic oil is stored in the storage box, the storage box supplies oil to the pushing plates, the first pressure sensor is arranged at the bottom of the storage box, the horizontal cross-sectional area of ​​the storage box is constant, the first pressure sensor is used to monitor the mass change of the hydraulic oil in the storage box when the pushing plate moves, and a processor is also arranged on the storage box, the processor calculates the height change of the hydraulic oil according to the mass change and the horizontal cross-sectional area of ​​the storage box, and the height change is the same as the total movement change of the two pushing plates.

[0006] Preferably, the change in volume of the hydraulic oil is calculated by the density of the hydraulic oil and the change in mass of the hydraulic oil in the storage tank, and the change in height of the hydraulic oil in the storage tank is calculated by dividing the change in volume by the horizontal cross-sectional area of ​​the storage tank.

[0007] Preferably, a second pressure sensor is provided on the peripheral wall of the coating roller. Before use, the two coating rollers are driven closer to each other by two pushing plates. When the two coating rollers are in contact, the second pressure sensor detects the pressure value and the pushing plates stop moving.

[0008] Preferably, when the two push plates respectively drive the two coating rollers away from each other, the hydraulic oil in the storage box is discharged, and when the two push plates respectively drive the two coating rollers toward each other, the hydraulic oil flows back into the storage box.

[0009] Preferably, the supply measuring unit includes two vertically arranged hydraulic bins and a first connecting pipe connecting the two hydraulic bins, a second connecting pipe is connected to the first connecting pipe, an end of the second connecting pipe away from the first connecting pipe is connected to the storage box, a push plate is arranged in the hydraulic bin for movement along the vertical direction, the push plate and the hydraulic bin on the side close to the first connecting pipe form a hydraulic cavity, and the first connecting pipe is connected to the hydraulic cavity.

[0010] Preferably, a synchronization unit is provided between the two pushing plates, and the synchronization unit includes two winding rollers, the ends of the two winding rollers are fixedly connected, the two winding rollers rotate synchronously when rotating, and a synchronization rope is wound around the winding rollers. The synchronization ropes on the two winding rollers are respectively fixedly connected to the two vertically arranged pushing plates.

[0011] Preferably, a winding unit that can drive the winding roller to rotate is provided at the end of the winding roller. When the winding unit drives the winding roller to rotate, the winding roller can reel in the synchronous rope. At this time, the two pushing plates approach each other. When the winding unit drives the winding roller to rotate, the rotation direction of the winding roller is opposite to the rotation direction of the winding roller when the two coating rollers are separated from each other. The winding unit starts when the two coating rollers approach each other.

[0012] Preferably, a clamping disk is fixedly provided at the end of the winding roller, and clamping grooves are evenly opened on the outer peripheral wall of the clamping disk around the axis of the clamping disk. The winding unit includes a rotating ring rotating around the axis of the clamping disk, and spring pieces are evenly arranged on the inner ring of the rotating ring around the axis of the rotating ring. The spring pieces are engaged with the clamping grooves. When the two push plates move away from each other, the spring pieces retract into the rotating ring. Before the two push plates approach each other, the spring pieces pop out from the rotating ring and engage with the clamping grooves on the clamping disk.

[0013] Preferably, a third connecting pipe connecting the two hydraulic tanks is vertically arranged on one side of the first connecting pipe, the fourth connecting pipe is arranged on the third connecting pipe and is interconnected with the third connecting pipe, and a driving unit for driving the rotating ring to rotate is arranged on the fourth connecting pipe. When the two push plates approach each other, the oil in the hydraulic tank is discharged into the fourth connecting pipe through the third connecting pipe, and the oil in the fourth connecting pipe can drive the driving unit when it flows.

[0014] Preferably, an elastic sleeve is provided on the upper part of the storage box, and the elastic sleeve is connected to the storage box. When the hydraulic oil in the storage box is discharged, the elastic sleeve shrinks, and when the hydraulic oil in the storage box increases, the elastic sleeve expands.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Before the present invention is used, the two coating rollers are close to and in contact with each other, at which time the distance between the coating rollers is zero, a hydraulic compartment is sleeved on the outer side of the push plate, the push plate can slide in the hydraulic compartment, and then the storage box supplies hydraulic oil to the two hydraulic compartments. Under the action of the hydraulic oil, the two push plates respectively drive the two coating rollers to separate. Since the hydraulic oil in the storage box needs to be supplied to the two hydraulic compartments in equal parts, and the horizontal cross-sectional area of ​​the two hydraulic compartments is the same as the horizontal cross-sectional area of ​​the storage box, the total movement of the two push plates is the same as the height change of the hydraulic oil in the storage box, and the distance between the two coating rollers is controlled by the hydraulic oil. The distance between the rollers is reduced, which avoids the need for traditional adjustment devices to mechanically control the movement of the coating roller. A first pressure sensor is arranged at the bottom of the storage box, and the height change of the hydraulic oil in the storage box is inferred by the change in the mass of the hydraulic oil detected by the first pressure sensor. There is no need to set up an additional distance meter to monitor the moving coating roller, which reduces the cost of use and ensures accuracy. The coating roller is driven to move by hydraulic means, and is hydraulically locked after reaching the specified position, which avoids mechanical wear in traditional mechanical transmission. It has high precision, so that the film casting machine can adapt to the processing of thinner substrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a MLCC high-speed precision film casting machine Figure 1 .

[0018] Figure 2 This is a side view of an MLCC high-speed precision film casting machine.

[0019] Figure 3 It is a MLCC high-speed precision film casting machine. Figure 2 Schematic cross-sectional view at AA in the middle.

[0020] Figure 4 It is a MLCC high-speed precision film casting machine. Figure 3 A local enlarged schematic diagram of point B in the middle.

[0021] Figure 5 It is a MLCC high-speed precision film casting machine. Figure 3 A partial enlarged schematic diagram of point C in the middle.

[0022] Figure 6 It is a cutaway stereoscopic schematic diagram of an MLCC high-speed precision film casting machine.

[0023] Figure 7 It is a MLCC high-speed precision film casting machine. Figure 6 A local enlarged schematic diagram of point D in the middle.

[0024] Figure 8 A three-dimensional diagram of a MLCC high-speed precision film casting machine Figure 2 .

[0025] Fig. 9 A three-dimensional diagram of a MLCC high-speed precision film casting machine Figure 3 .

[0026] Fig.10 It is a three-dimensional schematic diagram of an MLCC high-speed precision film casting machine with the coating roller and part of the push plate removed.

[0027] The numbers in the figure are:

[0028] 1. Push plate; 2. Coating roller; 3. Base material; 4. Supply and measurement unit; 41. Storage box; 411. Elastic sleeve; 42. Hydraulic chamber; 43. First connecting pipe; 44. Second connecting pipe; 441. Pump body; 45. Synchronous unit; 451. Synchronous rope; 452. Winding roller; 453. Winding unit; 4531. Rotating ring; 4532. Shrapnel; 4533. Snap-on disk; 4534. Annular side plate; 4535. Hydraulic pump; 454. Drive unit; 4541. Turbine pump; 4542. Synchronous wheel; 4543. Synchronous ring; 4544. Synchronous belt; 455. Third connecting pipe; 456. Fourth connecting pipe. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figure 1 and Figure 2 : A MLCC high-speed precision film casting machine, comprising two vertically arranged push plates 1 and coating rollers 2 arranged on the two push plates 1; the two push plates 1 can drive the two coating rollers 2 to move closer to or away from each other, the push plates 1 are driven by hydraulic pressure, and a supply and measurement unit 4 for providing hydraulic driving force for the push plates 1 is arranged on one side of the push plates 1, the supply and measurement unit 4 comprises a storage box 41 and a first pressure sensor, hydraulic oil is stored in the storage box 41, the storage box 41 supplies oil to the push plates 1, the first pressure sensor is arranged at the bottom of the storage box 41, the horizontal cross-sectional area of ​​the storage box 41 is constant, the first pressure sensor is used to monitor the mass change of the hydraulic oil in the storage box 41 when the push plates 1 move, and a processor is also arranged on the storage box 41, the processor calculates the height change of the hydraulic oil according to the mass change and the horizontal cross-sectional area of ​​the storage box 41, and the height change is the same as the total movement change of the two push plates 1.

[0031] The two coating rollers 2 are mainly used to limit the thickness of the substrate 3. The substrate 3 passes between the two coating rollers 2. The thickness of the substrate 3 is controlled by controlling the distance between the two coating rollers 2. The working principle is as follows: before use, the two coating rollers 2 are close to and in contact with each other. At this time, the distance between the coating rollers 2 is zero. A hydraulic bin 42 is sleeved on the outer side of the push plate 1. The push plate 1 can slide in the hydraulic bin 42. Then the storage box 41 supplies hydraulic oil to the two hydraulic bins 42. Under the action of the hydraulic oil, the two push plates 1 respectively drive the two coating rollers 2 to separate. Since the hydraulic oil in the storage box 41 needs to be supplied to the two hydraulic bins 42 in equal parts, and the horizontal cross-sectional area of ​​the two hydraulic bins 42 is the same as the horizontal cross-sectional area of ​​the storage box 41, the two The total movement of each push plate 1 is the same as the height change of the hydraulic oil in the storage box 41. The distance between the two coating rollers 2 is controlled by the hydraulic oil, which avoids the traditional adjustment device controlling the movement of the coating roller 2 by mechanical means. A first pressure sensor is set at the bottom of the storage box 41. The height change of the hydraulic oil in the storage box 41 is calculated by the change in the mass of the hydraulic oil detected by the first pressure sensor. There is no need to set up an additional distance meter to monitor the moving coating roller 2, which reduces the cost of use and ensures accuracy. The coating roller 2 is driven to move by hydraulic means and is hydraulically locked after reaching the specified position, which avoids mechanical wear in traditional mechanical transmission and has high precision, so that the film casting machine can adapt to the processing of thinner substrates 3.

[0032] Reference Figure 1-Figure 10 The changed volume of the hydraulic oil is calculated by the density of the hydraulic oil and the mass change of the hydraulic oil in the storage tank 41, and the height change of the hydraulic oil in the storage tank 41 is calculated by dividing the changed volume by the horizontal cross-sectional area of ​​the storage tank 41. Since the density of the hydraulic oil is constant, the volume can be calculated according to the density formula when the mass change is known, and then the height change of the hydraulic oil in the storage tank 41 can be calculated.

[0033] Reference Figure 1-Figure 10 : A second pressure sensor is arranged on the peripheral wall of the coating roller 2. Before use, the two coating rollers 2 are driven to approach each other by two pushing plates 1. When the two coating rollers 2 are in contact, the second pressure sensor detects the pressure value and the pushing plate 1 stops moving.

[0034] When the substrate 3 is placed between the two coating rollers 2, the distance between the coating rollers 2 needs to be reset to zero and corrected. The two coating rollers 2 are driven by two push plates 1 to approach each other and then contact each other, so that the distance between the two coating rollers 2 is reduced to zero, and the movement is stopped after the second pressure sensor detects the pressure value. Then the two push plates 1 begin to separate synchronously, and the total movement of the two push plates 1 is the same as the height change in the storage box 41. In this way, after the distance between the two coating rollers 2 is reset to zero, the accuracy of the subsequent adjustment of the distance between the two coating rollers 2 can be guaranteed.

[0035] Reference Figure 1-Figure 10 When the two push plates 1 drive the two coating rollers 2 away from each other, the hydraulic oil in the storage box 41 is discharged; when the two push plates 1 drive the two coating rollers 2 toward each other, the hydraulic oil flows back into the storage box 41.

[0036] Reference Figure 1 , Figure 8 and Fig. 9 The supply measuring unit 4 includes two vertically arranged hydraulic bins 42 and a first connecting pipe 43 connecting the two hydraulic bins 42. A second connecting pipe 44 is connected to the first connecting pipe 43. One end of the second connecting pipe 44 away from the first connecting pipe 43 is connected to the storage box 41. The push plate 1 is arranged to move in the hydraulic bin 42 along the vertical direction. The push plate 1 and the hydraulic bin 42 on the side close to the first connecting pipe 43 form a hydraulic cavity, and the first connecting pipe 43 is connected to the hydraulic cavity.

[0037] A pump body 441 is provided on the second connecting pipe 44, and the pump body 441 can draw the hydraulic oil in the storage box 41 into the hydraulic chamber 42 through the second connecting pipe 44 and the first connecting pipe 43. When the hydraulic oil enters the hydraulic chamber 42, the push plate 1 located in the hydraulic chamber 42 drives the coating roller 2 to move. At this time, the two coating rollers 2 move away from each other. When the hydraulic oil is drawn back from the hydraulic chamber 42 to the storage box 41 by the pump body 441, the two coating rollers 2 move closer to each other.

[0038] Reference Figure 6 and Figure 7: A synchronization unit 45 is arranged between the two pushing plates 1, and the synchronization unit 45 includes two winding rollers 452. The ends of the two winding rollers 452 are fixedly connected. The two winding rollers 452 rotate synchronously when rotating. A rear synchronization rope 451 is wound around the winding rollers 452. The synchronization ropes 451 on the two winding rollers 452 are respectively fixedly connected to the two vertically arranged pushing plates 1. The synchronization rope 451 is preferably a polyester static rope. Since the ends of the two winding rollers 452 are fixedly connected to each other, the two winding rollers 452 must rotate synchronously when rotating. When the two pushing plates 1 move away from each other, the pushing plate 1 pulls the corresponding synchronization rope 451 to be released from the winding roller 452 wound with the synchronization rope 451. The synchronization rope 451 drives the winding roller 452 to rotate when it is released. Since the two winding rollers 452 are fixedly connected, the two winding rollers 452 rotate synchronously. If the synchronization unit 45 is not set, since the two hydraulic chambers 42 are connected through the first connecting pipe 43, when the second connecting pipe 44 injects the hydraulic oil into the two hydraulic chambers 42 respectively through the first connecting pipe 43, there is a situation where more oil is injected into one hydraulic chamber and less oil is injected into the other hydraulic chamber. After the synchronization unit 45 is set, Through the two winding rollers 452 and the synchronization rope 451 wound on the winding rollers, the two push plates 1 can move synchronously when they are separated. The two push plates 1 drive the two coating rollers 2 to separate from each other after the coating rollers 2 have completed zeroing. After the synchronization unit 45 is set, the height of the symmetry line of the two coating rollers 2 will not change when the two coating rollers 2 are separated. Otherwise, if the upper coating roller 2 rises faster due to the corresponding push plate 1 being filled with more oil, it will inevitably cause the lower coating roller 2 to descend more slowly. In this way, although the total amount of movement of the two coating rollers 2 remains unchanged, the symmetry height of the two coating rollers 2 has changed, causing the substrate to bend when passing through the two coating rollers 2. Therefore, by ensuring that the height of the symmetry line between the two coating rollers 2 does not change, it can be ensured that the substrate 3 will not be damaged when passing between the two coating rollers 2.

[0039] Reference Figure 2 and Fig. 9 : A winding unit 453 is provided at the end of the winding roller 452, which can drive the winding roller 452 to rotate. When the winding unit 453 drives the winding roller 452 to rotate, the winding roller 452 can reel in the synchronization rope 451. At this time, the two pushing plates 1 approach each other. When the winding unit 453 drives the winding roller 452 to rotate, the rotation direction of the winding roller 452 is opposite to the rotation direction of the winding roller 452 when the two coating rollers 2 are separated from each other. The winding unit 453 starts when the two coating rollers 2 approach each other.

[0040] The synchronous rope 451 on the winding roller 452 is always in a vertical state after being released and before being wound up. In the prior art, the synchronous rope 451 in a vertical state can be guided by a rope guide to guide the wound synchronous rope 451, so that the synchronous rope 451 is always in a vertical state. The diameter of the synchronous rope 451 when wound on the winding roller 452 is d, so that the circumference of the synchronous rope 451 wound around one circle is C=πd, the height change of the hydraulic oil in the hydraulic chamber 42 is h1, the horizontal area of ​​the hydraulic chamber 42 is S, the change volume of the hydraulic chamber 42 is V1=h1*S, the transmission ratio between the worm pump 4541 and the winding roller 452 is k2, the number of rotations of the worm pump 4541 is q1, and the number of rotations of the winding roller 452 is q2, then the following formula is obtained, q2=k2*q1, the actual winding length of the synchronous rope 451 is h2, h2=q2*C, that is, h2=q2*πd, The number of revolutions of the turbine pump 4541 is proportional to the volume V1 discharged by the hydraulic chamber 42. The proportional coefficient is set to k1, and the following formula is obtained: V1 = k1*q1, q1 = V1 / k1, and q1 is substituted into the ratio formula of q2 and q1 to obtain q2 = k2*V1 / k1. Here, k2 / k1 is a constant, so k2 / k1 is set to k, and q2 = k*V1 is obtained. The actual winding length of the synchronous rope 451 is h2 = k*V1*πd. Substitute V1=h1*S into h2=k*V1*πd, and we get h2=k*S*πd*h1. To make h2=h1, we only need to make k*S*πd=1, where k and π are constants, S is the horizontal area of ​​the hydraulic chamber 42, and d is the diameter of the synchronous rope 451 when it is wound on the winding roller 452. In this way, it is proved that the actual winding length of the synchronous rope 451 h2 is the same as the height change of the hydraulic oil in the hydraulic chamber 42 h1.

[0041] Reference Figure 4 , Figure 5 and Figure 7-Figure 9: A clamping disk 4533 is fixedly arranged at the end of the winding roller 452, and clamping grooves are evenly opened on the outer peripheral wall of the clamping disk 4533 around the axis of the clamping disk 4533. The winding unit 453 includes a rotating ring 4531 rotating around the axis of the clamping disk 4533, and spring pieces 4532 are evenly arranged on the inner ring of the rotating ring 4531 around the axis of the rotating ring 4531. The spring pieces 4532 are engaged with the clamping grooves. When the two pushing plates 1 move away from each other, the spring pieces 4532 retract into the rotating ring 4531. Before the two pushing plates 1 approach each other, the spring pieces 4532 pop out from the rotating ring 4531 and are engaged with the clamping grooves on the clamping disk 4533. The spring piece 4532 is driven by hydraulics, and the winding unit 453 also includes an annular side plate 4534 and a hydraulic pump 4535. An annular cavity is provided inside the rotating ring 4531, and hydraulic oil is filled in the annular cavity. An annular groove is provided on the periphery of the rotating ring 4531, and the annular side plate 4534 is arranged on the annular groove. The hydraulic pump 4535 is arranged on one side of the annular side plate 4534 and communicates with the annular cavity. When the hydraulic pump 4535 pumps hydraulic oil into the annular cavity, the spring piece 4532 pops out from the rotating ring 4531. When the hydraulic pump 4535 draws out the hydraulic oil in the annular cavity, the spring piece 4532 retracts from the rotating ring 4531. When the rotating ring 4531 rotates, the annular side plate 4534 does not rotate.

[0042] Reference Figure 7-10 : A third connecting pipe 455 connecting the two hydraulic chambers 42 is vertically arranged on one side of the first connecting pipe 43, and a fourth connecting pipe 456 is arranged on the third connecting pipe and is interconnected with the third connecting pipe. A driving unit 454 for driving the rotating ring 4531 to rotate is arranged on the fourth connecting pipe 456. When the two pushing plates 1 approach each other, the oil in the hydraulic chamber 42 is discharged into the fourth connecting pipe 456 through the third connecting pipe 455, and the driving unit 454 can be driven when the oil in the fourth connecting pipe 456 flows.

[0043] Before the two coating rollers 2 approach each other, the first connecting pipe 43 is in a disconnected state, and the hydraulic oil in the hydraulic tank 42 can only be discharged into the fourth connecting pipe 456 through the third connecting pipe 455 when discharged. The driving unit 454 includes a turbine pump 4541, a synchronous wheel 4542, a synchronous ring 4543 and a synchronous belt 4544. The turbine pump 4541 is arranged on the fourth connecting pipe 456. When the hydraulic oil flows in the fourth connecting pipe 456, the output end of the turbine pump 4541 is driven to rotate, the synchronous wheel 4542 is fixedly arranged on the output end of the turbine pump 4541, the synchronous ring 4543 is fixedly arranged on the end of the rotating ring 4531, and the axis of the synchronous ring 4543 is colinear with the axis of the rotating ring 4531. The synchronous belt 4544 is respectively sleeved on the synchronous wheel 4542 and the synchronous ring 4543, and the synchronous belt 4544 is respectively matched with the synchronous wheel 4542 and the synchronous ring 4543 in transmission. It should be noted that, per unit time, the total discharge of hydraulic oil in the two hydraulic chambers 42 is the same as the discharge of the turbine pump 4541. When the output end of the turbine pump 4541 rotates, the rotating ring 4531 can rotate smoothly under the transmission of the synchronous wheel 4542, the synchronous ring 4543 and the synchronous belt 4544. The spring piece 4532 on the rotating ring 4531 is in a pop-up state. The spring piece 4532 is engaged with the engaging groove on the engaging disk 4533. After the rotating ring 4531 rotates, the engaging disk 4533 rotates synchronously with the rotating ring 4531. The engaging disk 4533 drives the winding roller 452 to wind up the synchronous rope 451. The length of the winding of the synchronous rope 451 per unit time is the same as the height change of the hydraulic oil in the hydraulic chamber 42. The fourth connecting pipe 456 is interconnected with the second connecting pipe 44. The fourth connecting pipe 456 can guide the hydraulic oil in the hydraulic chamber 42 back to the storage tank 41. Figure 1 , Figure 2 and Fig. 9 An elastic sleeve 411 is provided on the upper portion of the storage box 41, and the elastic sleeve 411 is connected to the storage box 41. When the hydraulic oil in the storage box 41 is discharged, the elastic sleeve 411 shrinks, and when the hydraulic oil in the storage box 41 increases, the elastic sleeve 411 expands.

[0044] An elastic sleeve 411 is provided on the storage box 41. When the hydraulic oil in the storage box 41 is discharged and flows back, the air in the storage box 41 can be discharged through the elastic sleeve 411, that is, when the hydraulic oil in the storage box 41 is discharged, the hydraulic oil in the storage box 41 decreases, and the air in the storage box 41 increases, so that the air in the elastic sleeve 411 flows into the storage box 41, so that the elastic sleeve 411 shrinks. On the contrary, when the hydraulic oil flows back into the storage box 41, the air in the storage box 41 needs to be discharged, and the discharged air is discharged into the elastic sleeve 411, so that the elastic sleeve 411 expands and increases, so that the air in the storage box 41 will not contact with the outside world, thereby ensuring that the water vapor in the outside air will not mix into the hydraulic oil in the storage box 41, causing the hydraulic oil to deteriorate, and ensuring that the density of the hydraulic oil remains constant.

[0045] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An MLCC high-speed precision film casting machine, comprising two vertically arranged push plates (1) and a coating roller (2) arranged on the two push plates (1); It is characterized in that The two push plates (1) can drive the two coating rollers (2) to move closer to or farther from each other. The push plates (1) are driven by hydraulic pressure. A supply measurement unit (4) for providing hydraulic driving force for the push plates (1) is arranged on one side of the push plates (1). The supply measurement unit (4) comprises a storage box (41) and a first pressure sensor. Hydraulic oil is stored in the storage box (41). The storage box (41) supplies oil to the push plates (1). The first pressure sensor is arranged at the bottom of the storage box (41). The horizontal cross-sectional area of ​​the storage box (41) is constant. The first pressure sensor is used to monitor the mass change of the hydraulic oil in the storage box (41) when the push plates (1) move. The storage box (41) is also provided with a processor. The processor calculates the height change of the hydraulic oil according to the mass change and the horizontal cross-sectional area of ​​the storage box (41). The height change is the same as the total movement change of the two push plates (1).

2. The MLCC high-speed precision film casting machine according to claim 1, It is characterized in that The changed volume of the hydraulic oil is calculated by the density of the hydraulic oil and the mass change of the hydraulic oil in the storage tank (41), and the height change of the hydraulic oil in the storage tank (41) is calculated by dividing the changed volume by the horizontal cross-sectional area of ​​the storage tank (41).

3. The MLCC high-speed precision film casting machine according to claim 1, It is characterized in that A second pressure sensor is arranged on the peripheral wall of the coating roller (2). Before use, the two coating rollers (2) are driven to approach each other by two pushing plates (1). When the two coating rollers (2) are in contact, the second pressure sensor detects the pressure value and the pushing plate (1) stops moving.

4. The MLCC high-speed precision film casting machine according to claim 1, It is characterized in that When the two push plates (1) respectively drive the two coating rollers (2) away from each other, the hydraulic oil in the storage box (41) is discharged; when the two push plates (1) respectively drive the two coating rollers (2) toward each other, the hydraulic oil flows back into the storage box (41).

5. The MLCC high-speed precision film casting machine according to claim 1, It is characterized in that The supply measurement unit (4) comprises two hydraulic chambers (42) arranged vertically and a first connecting pipe (43) connecting the two hydraulic chambers (42); a second connecting pipe (44) is connected to the first connecting pipe (43); an end of the second connecting pipe (44) away from the first connecting pipe (43) is connected to a storage box (41); a push plate (1) is arranged in the hydraulic chamber (42) to move in a vertical direction; the push plate (1) and the hydraulic chamber (42) on the side close to the first connecting pipe (43) form a hydraulic chamber; and the first connecting pipe (43) is connected to the hydraulic chamber.

6. The MLCC high-speed precision film casting machine according to claim 5, It is characterized in that A synchronization unit (45) is provided between the two pushing plates (1), and the synchronization unit (45) comprises two winding rollers (452), the ends of the two winding rollers (452) are fixedly connected, the two winding rollers (452) rotate synchronously when rotating, a rear synchronization rope (451) is wound around the winding rollers (452), and the synchronization ropes (451) on the two winding rollers (452) are respectively fixedly connected to the two pushing plates (1) arranged vertically.

7. The MLCC high-speed precision film casting machine according to claim 6, It is characterized in that A winding unit (453) capable of driving the winding roller (452) to rotate is arranged at the end of the winding roller (452). When the winding unit (453) drives the winding roller (452) to rotate, the winding roller (452) can wind up the synchronization rope (451). At this time, the two pushing plates (1) approach each other. When the winding unit (453) drives the winding roller (452) to rotate, the rotation direction of the winding roller (452) is opposite to the rotation direction of the winding roller (452) when the two coating rollers (2) are separated from each other. The winding unit (453) is started when the two coating rollers (2) approach each other.

8. The MLCC high-speed precision film casting machine according to claim 7, It is characterized in that A clamping disc (4533) is fixedly arranged at the end of the winding roller (452), and clamping grooves are evenly arranged on the outer peripheral wall of the clamping disc (4533) around the axis of the clamping disc (4533). The winding unit (453) comprises a rotating ring (4531) rotating around the axis of the clamping disc (4533), and spring pieces (4532) are evenly arranged on the inner ring of the rotating ring (4531) around the axis of the rotating ring (4531). The spring pieces (4532) are clamped and matched with the clamping grooves. When the two pushing plates (1) move away from each other, the spring pieces (4532) retract into the rotating ring (4531), and before the two pushing plates (1) move closer to each other, the spring pieces (4532) pop out from the rotating ring (4531) and are clamped with the clamping grooves on the clamping disc (4533).

9. The MLCC high-speed precision film casting machine according to claim 8, It is characterized in that A third connecting pipe (455) is vertically arranged on one side of the first connecting pipe (43) for connecting the two hydraulic chambers (42); a fourth connecting pipe (456) is arranged on the third connecting pipe and is connected to the third connecting pipe; a driving unit (454) for driving the rotating ring (4531) to rotate is arranged on the fourth connecting pipe (456); when the two push plates (1) approach each other, the oil in the hydraulic chamber (42) is discharged into the fourth connecting pipe (456) through the third connecting pipe (455); when the oil in the fourth connecting pipe (456) flows, the driving unit (454) can be driven.

10. The MLCC high-speed precision film casting machine according to claim 1, It is characterized in that An elastic sleeve (411) is arranged on the upper part of the storage box (41). The elastic sleeve (411) is in communication with the storage box (41). When the hydraulic oil in the storage box (41) is discharged, the elastic sleeve (411) shrinks. When the hydraulic oil in the storage box (41) increases, the elastic sleeve (411) expands.

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