Feeding equipment for MLCC ceramic capacitor production

Abstract

The invention relates to the technical field of ceramic capacitor raw material processing, and provides a feeding device for MLCC ceramic capacitor production, which comprises a support frame, a stripping frame and a cutting piece, and is characterized in that the support frame is rotatably provided with a feeding shaft and a receiving shaft, and is provided with a plurality of feeding roller groups; the stripping frame is arranged on the supporting frame in a reciprocating sliding mode, a rotating roller is arranged on the stripping frame, a material belt can sequentially wind around the feeding shaft, the multiple feeding roller sets, the rotating roller and the material collecting shaft, and after the stripping frame slides, the material belt can be driven to stretch into laminating equipment; the cutting piece is arranged on the supporting frame and located above the rotating roller. According to the feeding equipment for MLCC ceramic capacitor production, an acute angle structure is replaced by the rotating roller, local stress concentration is eliminated, the damage risk of a backing material layer is reduced, the rotating roller is driven to work through the stripping frame capable of sliding in a reciprocating mode, a material belt is directly provided for lamination equipment, an additional transfer mechanism is omitted, secondary damage caused by transfer is avoided, and the production efficiency of the MLCC ceramic capacitor is improved. And meanwhile, a three-state automatic closed-loop process is realized.

Description

Technical Field

[0001] This invention relates to the field of ceramic capacitor raw material processing technology, specifically to a feeding device for the production of MLCC ceramic capacitors. Background Technology

[0002] MLCCs, often referred to as multilayer ceramic chip capacitors, are an indispensable basic component in electronic devices. With their advantages such as miniaturization, high capacitance, and good temperature resistance, they are widely used in almost all electronic equipment fields, including consumer electronics and communication equipment.

[0003] Structurally, an MLCC is a core structure composed of several ceramic capacitor layers and protective layers stacked alternately. The key step in the entire MLCC manufacturing process is to sequentially stack and press the ceramic capacitor layers and protective layers together. For this step, a stacking equipment is usually used. During the stacking operation, the stacking equipment receives ceramic capacitor layers from one side and protective layers from the other side, alternating between the two, and finally performs a pressing operation to obtain the MLCC core structure.

[0004] Currently, the ceramic capacitor layer is fed in a roll. The ceramic capacitor layer is pre-made on the base material layer, i.e., the strip, and the entire strip is installed on the feeding shaft of the feeding equipment. The strip can then pass through several rollers and acute-angle structures in sequence. During operation: the rollers rotate to convey the material, and the cutter of the feeding equipment first cuts only the ceramic capacitor layer of the specified size on the strip. At this time, the ceramic capacitor layer and the base material layer are not separated. The conveying continues until the cut ceramic capacitor layer passes through the acute-angle structure. Under the force of the tip of the acute-angle structure, the ceramic capacitor layer will automatically peel off and be provided to the laminating equipment. Then, the base material layer and the remaining ceramic capacitor layer on it are wound up.

[0005] However, the drawback of using the above-mentioned feeding equipment is that, under the premise of maintaining tension at all times, the bottom material layer is easily damaged or even torn when passing through the sharp angle structure, which makes the material strip unusable and wasteful. In addition, an additional mechanism is still needed to transfer the peeled ceramic capacitor layer to the stacking equipment. Summary of the Invention

[0006] To overcome the above-mentioned defects, embodiments of the present invention provide a feeding device and stacking process for the production of MLCC ceramic capacitors. This solves the problem in the related technology where, in the process of feeding the ceramic capacitor layer prepared by MLCC using a material roll, an acute-angle structure is needed to peel the ceramic capacitor layer from the base material layer in order to provide the ceramic capacitor layer. However, the base material layer needs to maintain tension at all times and repeatedly pass through the acute-angle structure, which can easily damage or break the base material layer, making the material roll unusable and causing material waste. At the same time, an additional mechanism is still needed to transfer the peeled ceramic capacitor layer to the stacking equipment.

[0007] At least one embodiment of the present invention provides a feeding device for the production of MLCC ceramic capacitors, used to separate the base layer and the ceramic capacitor layer in the material strip, and to provide the ceramic capacitor layer to the stacking equipment, comprising: The support frame is equipped with a feeding shaft for winding the feeding belt and a receiving shaft for recovering the bottom material layer, and is also equipped with several feeding roller groups for conveying the feeding belt. The stripping frame is slidably mounted on the support frame. The stripping frame is equipped with a rotating roller. The material belt can pass through the feeding shaft, several feeding roller groups, rotating roller and receiving shaft in sequence. After the stripping frame slides, it can drive the material belt to extend into the stacking equipment. The cutting component is mounted on the support frame and located above the rotating roller. The cutting component is used to cut the ceramic capacitor layer in the material strip. The adsorption element is located at one end of the support frame near the stacking equipment. The peeling frame is divided into feeding state, peeling state and reset state. When the peeling frame is in the feeding state, the peeling frame slides into the stacking equipment and the take-up shaft stops rotating and rewinds. When the peeling frame is in the peeling state, the take-up shaft rotates and rewinds, so that the cut ceramic capacitor layer can be peeled off from the bottom material layer under the adsorption of the adsorption component when the bottom material layer is rewound by the take-up shaft. With the peeling frame in the reset position, the peeling frame slides away from the laminating equipment.

[0008] According to one embodiment of this application, the peeling frame slides horizontally and further includes: The guide feed roller is mounted on the support frame and located behind the stripping frame. The material strip can pass through several feed roller groups, the guide feed roller and the rotating roller in sequence. The lowest point of the guide feed roller and the highest point of the rotating roller are at the same height so that the material belt can be horizontally conveyed from the guide feed roller to the rotating roller.

[0009] According to one embodiment of this application, the peeling frame slides horizontally and further includes: The guide recovery roller is mounted on the support frame and located behind the stripping frame. The material strip can pass through the rotating roller, the guide recovery roller and the take-up shaft in sequence. The highest point of the guide recovery roller is at the same height as the lowest point of the rotating roller, so that the material strip can be horizontally conveyed from the rotating roller to the guide recovery roller.

[0010] According to one embodiment of this application, the bottom of the peeling frame is provided with sliders on both sides, and the support frame is provided with a slide rail along the horizontal direction, with both sliders slidingly engaged with the slide rail. The driver is mounted on the support frame and is used to drive the stripping frame to move; The two sliders form a clearance space between themselves and the bottom of the stripping frame. This clearance space is used to avoid components inside the stacking equipment.

[0011] According to one embodiment of this application, a plurality of feeding roller groups include a tensioning roller group and a pressing roller group. The material strip can pass around the tensioning roller group and the pressing roller group in sequence. The tensioning roller group is used to tension the base material layer, and the pressing roller group is used to press the base material layer to ensure the tension of the material strip.

[0012] According to one embodiment of this application, the tensioning roller assembly includes: The tensioning frame is horizontally movable on the support frame. A conveyor roller is rotatably mounted on the tensioning frame to convey the material belt. The tension of the material belt can be adjusted after the tensioning frame moves. A drive cylinder is mounted on a support frame and is used to drive the tensioner frame to move.

[0013] According to one embodiment of this application, the bonding roller assembly includes: The negative pressure adsorption roller is rotatably mounted on a support frame. It is used to convey the material belt, and negative pressure adsorption holes are opened on the side wall of the negative pressure adsorption roller. The negative pressure adsorption holes can adsorb and stick to the material belt. The driving component is mounted on the support frame and is used to drive the negative pressure adsorption roller to rotate.

[0014] According to one embodiment of this application, a guide frame is slidably connected to the bottom of the support frame. The guide frame slides along a horizontal longitudinal direction. The feeding shaft is rotatably mounted on the guide frame. The support frame also has a built-in controller. A feeding device for producing MLCC ceramic capacitors further includes: The position sensor is mounted on the support frame and electrically connected to the controller. The position sensor is used to detect the offset of the material belt edge and generate a signal. The controller is used to receive the signal and send control commands to the correction frame to control the amount of correction movement of the correction frame.

[0015] According to one embodiment of this application, the position sensor includes two photoelectric sensors symmetrically arranged. Both photoelectric sensors are electrically connected to the controller and are located on both sides of the feed belt, and a detection area is formed between the two photoelectric sensors where the edge of the feed belt passes through.

[0016] This invention provides a feeding device for the production of MLCC ceramic capacitors. Compared with the prior art, it replaces the acute-angle structure with a rotating roller. When the material strip passes around the rotating roller, it only produces a smooth bend, eliminating the local stress concentration caused by the acute-angle structure and reducing the risk of damage to the bottom layer of the material strip. Furthermore, to facilitate the supply of ceramic capacitor layers to the stacking equipment, and to eliminate the need for additional mechanisms (such as robotic arms) for transfer, a reciprocating sliding stripping frame drives the rotating roller. Specifically, since the material strip passes around the rotating roller, when the stripping frame is in the feeding state, it can drive the rotating roller and the material strip on the rotating roller to slide directly into the working area inside the stacking equipment, and reset after supplying the ceramic capacitor layer in the material strip.

[0017] Meanwhile, the peeling frame operates in three states: feeding, peeling, and resetting, forming a closed-loop operation process. In the feeding state, as the peeling frame slides into the stacking equipment, the feeding shaft continuously feeds material while the take-up shaft remains stationary, ensuring that the ceramic capacitor layer being cut in the strip is at the edge of the rotating roller, i.e., in a stable state awaiting peeling, for subsequent peeling. In the peeling state, the peeling frame is already in the working area of ​​the stacking equipment, and the take-up shaft rewinds. Then, under the combined action of the winding force and the adsorption of the adsorption component, peeling is completed. Since the adsorption component is located on the support frame near the end of the stacking equipment, if it is directly installed in the working area inside the stacking equipment, the adsorbed ceramic capacitor layer can be directly supplied to the stacking equipment for use (to prevent the winding force from being unable to peel the ceramic capacitor layer well based on the rotating roller structure; it is precisely because of the sliding in of the peeling frame that the winding force and adsorption force can be coordinated). In the resetting state, the peeling frame resets and slides away from the equipment, ready for the next feeding.

[0018] The entire process eliminates the need for intermediate transfer steps, reducing secondary damage to the ceramic capacitor layer caused by transfer (such as collisions or electrostatic adsorption). At the same time, the equipment is equipped with a cutting component that can cut the ceramic capacitor layer attached to the base material layer above the rotating roller in the reset state, cutting it to the specified size to facilitate subsequent peeling, and also improving the overall level of automation and the continuity of operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a feeding device for producing MLCC ceramic capacitors provided in an embodiment of the present invention; Figure 2 This is an embodiment of the present invention. Figure 1 Schematic diagram of the peeling process of the peeling frame; Figure 3 This is an embodiment of the present invention. Figure 1 A schematic diagram of the internal structure of several feeding roller groups; Figure 4 This is an embodiment of the present invention. Figure 3 Diagram showing the assembly of the guide feed roller, the rotary roller, and the guide recovery roller; Figure 5 This is an embodiment of the present invention. Figure 3 Schematic diagram of the structure of the intermediate tensioning roller group and the bonding roller group; Figure 6 This is an embodiment of the present invention. Figure 1 A partial structural schematic diagram of a feeding device for the production of MLCC ceramic capacitors; Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged view of section A.

[0021] In the diagram: 1. Support frame; 2. Feeding shaft; 3. Receiving shaft; 4. Peeling frame; 5. Rotary roller; 6. Guide feeding roller; 7. Tensioning roller assembly; 701. Tensioning frame; 702. Conveying roller; 8. Adhesive roller assembly; 801. Negative pressure adsorption roller; 9. Guide recovery roller; 10. Correction frame; 11. Position sensor; 12. Slider; 1201. Clearance space; 13. Slide rail. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0026] To make the drawings concise and easy to understand, some drawings only show one of the components with the same structure or function, or only one of them is marked. In this article, "one" not only means "only one", but can also mean "more than one", and "several" includes "two" and "more than two".

[0027] Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. It is understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. The embodiments of this application are described in detail below with reference to the accompanying drawings.

[0028] The stacking area of ​​the stacking equipment is equipped with independent conveying units on both sides. The left side is a thin-sheet ceramic capacitor layer conveying unit, and the right side is an auxiliary thin-sheet protective layer conveying unit that plays a role in isolation and protection. The conveying ends of both units are aligned with the stacking area and feed materials alternately according to the rhythm matched with the stacking cycle. The conveying units on both sides feed materials alternately in a cycle until the number of stacked layers reaches the preset requirement and then the feeding stops. Subsequently, the pressing mechanism in the stacking area (such as the lifting platform and fixed pressure plate) applies pressure to the entire stacked body, so that each layer is tightly attached and finally forms the MLCC core structure.

[0029] It should be noted that, in order to ensure the quality of subsequent molding, before the final pressing, each time a new ceramic capacitor layer is stacked, the stacked ceramic capacitor layer and the protective layer can be pre-pressed by the pressing mechanism (this pre-pressing step is not an invention point and will not be elaborated on here).

[0030] Definition: The substrate layer with the ceramic capacitor layer attached is called a substrate strip.

[0031] Regarding the left-side conveying unit for ceramic capacitor layers, it adopts a winding method. The ceramic capacitor layer is pre-prepared on the base material strip (using a slurry preparation-casting process, which essentially involves making ceramic material into a coatable slurry, and then using precision coating technology to coat the slurry onto the base material layer to form a uniform ceramic film, i.e., the ceramic capacitor layer. The base material strip is usually a PET base film strip. The above preparation is not an invention point and will not be elaborated on here). The entire strip is then wound into a roll, i.e., the strip is made into a roll, which is then placed on a rotating shaft, and the end of the roll is connected to the take-up roll. The conveying unit keeps the strip in a conveying state at all times, which facilitates the processing of the ceramic capacitor layer on the roll during the conveying process, so as to provide it to the stacking area.

[0032] However, as mentioned above, the processing method for ceramic capacitor layers has some drawbacks. Therefore, in one embodiment of the present invention, a feeding device for producing MLCC ceramic capacitors is provided to supply ceramic capacitor layers attached to the substrate layer to the laminating equipment, such as... Figure 1 , Figure 2 As shown, the feeding system consists of a support frame 1, a peeling frame 4, an adsorption component, and a cutting component. Specifically: the support frame 1 serves as the load-bearing foundation of the entire equipment and is a metal frame structure. It integrates the installation interfaces of all functional components such as feeding, conveying, receiving, adsorption, and cutting. For example, the feeding shaft 2 is rotatably connected to one side of the bottom of the support frame 1. Its axis is set horizontally and longitudinally and is used to install the material strip with the bottom material layer (attached ceramic capacitor layer). It can rotate around its own axis and is driven by a motor to achieve feeding. For another example, the receiving shaft 3 is rotatably connected to the other side of the bottom of the support frame 1. Similar to the feeding shaft 2, it is used to receive the remaining bottom material layer after peeling off the ceramic capacitor layer. For yet another example, several feeding roller groups are sequentially fixedly installed in the middle area of ​​the support frame 1 along the material conveying path (installation can be achieved through structures such as bearing seats). Their axes are all horizontal and longitudinal, which can convey the material strip and ensure smooth conveying.

[0033] Definition: The sliding direction of the 4-way stacking equipment of the peeling frame is the front side, and the opposite direction is the rear side.

[0034] Furthermore, the peeling frame 4, as a core component, has a frame structure that can slide horizontally. Guide rails can be installed at corresponding positions on the support frame 1 to realize the reciprocating sliding of the peeling frame 4 (which can be driven by a servo motor). The bottom of the peeling frame 4 can be integrally formed with a slider / roller and slide in cooperation with the guide rail. A rotating roller 5 is rotatably installed at the end of the peeling frame 4 near the stacking equipment. The conveying path of the material belt is: feeding shaft 2 → several feeding roller groups → rotating roller 5 → receiving shaft 3. Thus, after the peeling frame 4 slides, it can drive the material belt to extend into the stacking equipment. The entire feeding process of the peeling frame 4 is divided into the following three stages: Feeding state: Driven by the servo motor, the peeling frame 4 drives the material strip to slide into the stacking area of ​​the stacking equipment. During this process, the take-up shaft 3 stops rotating and rewinds, while the feeding shaft 2 continues to rotate and feed, ensuring that the ceramic capacitor layer to be cut is in a stable state at the edge of the rotating roller 5 to be peeled, so as to facilitate subsequent peeling; Peeling state: The peeling frame 4 is now in the working area of ​​the stacking equipment. The take-up shaft 3 rewinds, and then, under the combined action of the winding force and the adsorption force of the adsorption component, the peeling is completed and directly supplied to the stacking equipment (to prevent the winding force from being unable to peel the ceramic capacitor layer well based on the structure of the rotating roller 5; it is precisely because of the sliding in of the peeling frame 4 that the combination of the winding force and the adsorption force can be achieved); Reset state: Driven by the servo motor, the peeling frame 4 resets and slides away from the stacking equipment, ready for the next feeding.

[0035] In this embodiment, the adsorption element is located at one end of the support frame 1 near the stacking device. Specifically, the adsorption element can be directly assembled in the working area inside the stacking device, so that the ceramic capacitor layer can be adsorbed and the stacking device can be used directly.

[0036] As a parallel embodiment, the structure of the rotating roller 5 can be omitted. Instead, a cylindrical structure similar to the rotating roller 5 can be integrally formed at the installation position of the rotating roller 5. Its surface is smooth, which needs to reduce the friction on the material strip. It plays the same role as the rotating roller 5.

[0037] As mentioned above, the ceramic capacitor layer is already being cut during the feeding stage. Therefore, the cutting component is installed on the support frame 1. The key point is its position. It should be arranged above the rotating roller 5 (the cutting direction is perpendicular to the surface of the bottom layer to ensure a flat cut). The cutting component needs to complete the cutting action before the feeding state begins, that is, before the peeling frame 4 slides into the stacking equipment.

[0038] This embodiment provides a feeding device for the production of MLCC ceramic capacitors. By replacing the acute-angle structure with a rotating roller 5, the material strip only undergoes smooth bending, eliminating local stress concentration and reducing the risk of breakage. The reciprocating stripping frame 4 drives the rotating roller 5. In the feeding state, the rotating roller 5 can slide directly into the working area of ​​the stacking equipment. After feeding, it resets, eliminating the need for additional transfer mechanisms such as robotic arms. This reduces secondary damage to the ceramic capacitor layer caused by collisions and electrostatic adsorption during transfer. In addition, the added cutting component can cut the ceramic capacitor layer above the rotating roller 5 when the stripping frame 4 is reset, accurately obtaining the specified size, which is convenient for subsequent stripping. Ultimately, a closed-loop process without intermediate transfer is achieved, improving the overall level of automation and the continuity of operation.

[0039] As a specific embodiment, for cutting parts (besides using a small robotic arm to drive the cutter), it can actually be achieved through a dual-axis mechanism (xy-axis) to cut the ceramic capacitor layer on the horizontal plane; specifically: a guide support plate with a loop groove is fixed to the top crossbeam of the support frame 1 by bolts, located above the rotating roller 5. The loop groove is opened on its bottom surface, and a motor-driven circulating chain drives the lifting seat to circulate within the loop groove. The bottom surface of the lifting seat has a detachable cutting blade, which can then drive the cutting blade to rise and fall to approach the ceramic capacitor layer; cutting process: the lifting seat descends, the cutting blade touches the ceramic capacitor layer (ensuring that the bottom material layer is not cut), the circulating chain starts to circulate, which can then drive the cutting blade to cut out an approximately square ceramic capacitor layer; if it is necessary to change the size of the ceramic capacitor layer, the guide support plate can be replaced.

[0040] refer to Figure 3 , Figure 4 In some embodiments, the peeling frame 4 slides horizontally, and a guide feeding roller 6 is added. The guide feeding roller 6 is rotatably mounted on the support frame 1 and located behind the peeling frame 4, so that the material strip can pass through several feeding roller groups, the guide feeding roller 6 and the rotating roller 5 in sequence. The lowest point of the guide feeding roller 6 is designed to be at the same height as the highest point of the rotating roller 5, so that the material strip can be horizontally conveyed from the guide feeding roller 6 to the rotating roller 5. This ensures that the cut ceramic capacitor layer moves horizontally to directly below the adsorption element, so that it can stably receive the adsorption force of the adsorption element, ensuring the stability of the peeling process, and avoiding the difficulty in controlling the distance between the adsorption element and the material strip in the tilted state, which would weaken the adsorption effect and make it impossible to peel off the cut ceramic capacitor layer.

[0041] refer to Figure 3 , Figure 4 In some embodiments, the stripping frame 4 slides horizontally, and a guide recovery roller 9 is added. The guide recovery roller 9 is rotatably mounted on the support frame 1 and located behind the stripping frame 4, so that the material strip can pass through the rotating roller 5, the guide recovery roller 9 and the receiving shaft 3 in sequence. The highest point of the guide recovery roller 9 is designed to be at the same height as the lowest point of the rotating roller 5, so that the material strip can be horizontally conveyed from the rotating roller 5 to the guide recovery roller 9, ensuring smooth recovery of the bottom material layer and avoiding interference with other components during the reciprocating sliding process, so that the material strip is close to the stripping frame 4.

[0042] refer to Figure 4 In some embodiments, the bottom sides of the peeling frame 4, which is controlled by the driver to slide back and forth, are provided with sliders 12. Both sliders 12 slide in cooperation with the horizontal transverse slide rail 13 on the support frame 1. While realizing the sliding action, the two sliders 12 form a clearance space 1201 between the bottom of the peeling frame 4 and the two sliders 12. The clearance space 1201 can avoid components in the stacking equipment, such as pressing components, during the reciprocating sliding of the peeling frame 4.

[0043] refer to Figure 3 , Figure 5 In some embodiments, several feeding roller groups include a tensioning roller group 7 and a bonding roller group 8. The base material layer can pass around the tensioning roller group 7 and the bonding roller group 8 in sequence. The tensioning roller group 7 is used to tension the base material layer, and the bonding roller group 8 is used to bond the base material layer. In this embodiment, by dividing the base material layer into two groups of rollers, a progressive control of "precise tensioning first and stable bonding later" is achieved during the conveying process. The tensioning roller group 7 eliminates the problem of looseness in the base material layer, ensures uniform tension during the conveying process, and avoids wrinkles caused by insufficient tension or damage caused by excessive tension. The bonding roller group 8 restricts the lateral displacement of the base material layer through its bonding action, keeping it in a flat and bonded state. This provides a reliable conveying foundation for the precise cutting and stable peeling at the subsequent rotating roller 5, greatly improving the cutting accuracy and feeding stability of the ceramic capacitor layer, and ensuring the continuity of subsequent lamination operations and product consistency.

[0044] As a specific example, such as Figure 5 As shown, the tensioning roller assembly 7 includes a tensioning frame 701 and a drive cylinder. The tensioning frame 701 adopts a symmetrically arranged bearing seat structure and has a slider integrally formed at the bottom, so that the slider slides in cooperation with the preset horizontal guide rail on the support frame 1. The conveying roller 702 (solid smooth roller structure) is installed between two bearing seats, and its two ends are rotatably connected to the two bearing seats respectively. The drive cylinder is bolted to the side wall of the support frame 1, and the drive end is fixed to one of the bearing seats. After the drive cylinder drives the tensioning frame 701 to move, the tension of the bottom material layer can be adjusted. For the tension adjustment principle, a pressure sensor can be used to monitor the tension of the bottom material layer in real time. When the bottom material layer is detected to be loose (tension is lower than the set value), a control signal is sent to the solenoid valve of the drive cylinder. The solenoid valve controls the cylinder to vent, the drive end (piston rod) extends, pushes the tensioning frame 701 to move, drives the conveying roller 702 to move synchronously, increases the conveying path length of the bottom material layer, and thus increases the tension of the bottom material layer to the preset range.

[0045] As a specific example, such as Figure 5 As shown, the bonding roller assembly 8 includes a negative pressure adsorption roller 801 and a driving component. The negative pressure adsorption roller 801 is a hollow cylindrical roller body, with its two ends rotatably connected to the bearing seats of the support frame 1. Several sets of adsorption holes are evenly distributed along the axial direction on the side wall of the roller body. Each set has several adsorption holes opened along the circumference to ensure that the adsorption force evenly covers the surface of the substrate layer. The adsorption holes penetrate through the side wall of the roller body and communicate with the internal hollow cavity. After the equipment is started, the negative pressure pump introduces negative pressure into the internal cavity of the negative pressure adsorption roller 801 through the hose rotary joint. The adsorption holes generate adsorption force under the action of negative pressure. The driving component can be a traditional motor, which is mounted on one of the bearing seats and connected to the shaft of the negative pressure adsorption roller 801.

[0046] refer to Figure 6 , Figure 7In some embodiments, the lateral offset at the start of the bottom material layer conveying is corrected in real time by using sensors in conjunction with controllers. Specifically: the correction frame 10 is a rectangular metal frame located at the bottom of the support frame 1 near the feeding end. A slider is provided at its bottom, and the slider slides in cooperation with a preset horizontal longitudinal guide rail. The bottom side of the correction frame 10 is rotatably mounted with a feeding shaft 2 (used to load the bottom material layer roll) through a bearing seat. The position sensor 11 is a dual-channel photoelectric sensor, symmetrically installed on the vertical support in the middle of the support frame 1, and located on the front and rear sides of the material strip edge, used to detect the position of the material strip edge. The position sensor 11 is electrically connected to the controller built into the support frame 1.

[0047] The working principle of this embodiment is as follows: During the conveying process of the material belt, two photoelectric sensors receive each other's light signals. When the material belt deviates to one side (such as deviating to the left along the horizontal longitudinal direction), the two photoelectric sensors will generate detection signals and send them to the controller. After receiving the detection signals, the controller calculates the required correction movement amount and direction based on the signals. Then, it sends a control command to the stepper motor of the correction drive mechanism to the drive component of the correction frame 10, such as the stepper motor. The stepper motor drives the ball screw to rotate according to the control command, driving the correction frame 10 to move (if the bottom material layer deviates to the left, the correction frame 10 moves to the right), driving the feeding shaft 2 to move synchronously, thereby adjusting the conveying direction of the bottom material layer until the edge of the bottom material layer returns to the preset normal position. At this point, the two photoelectric sensors will stop triggering signals, and the correction frame 10 will stop moving. The reverse is also true.

[0048] This embodiment corrects the offset of the base material layer in real time to ensure that the base material layer is always transported along the preset path, avoiding problems such as subsequent cutting size deviation and misalignment of the ceramic capacitor layer during peeling due to offset.

[0049] Overall working principle: The material strip (base layer + ceramic capacitor layer) is first installed on the feeding shaft 2. The material strip passes sequentially through the tension roller group 7 (tensioning), the bonding roller group 8 (bonding + anti-wrinkle + tension self-adaptation) and the rotating roller 5, and is finally wound up by the take-up shaft 3, forming a stable conveying path, and continuing the core action closed loop: Material feeding status: The cutting part cuts out the ceramic capacitor layer of the specified size above the rotating roller 5, the peeling frame 4 slides into the stacking equipment horizontally, the receiving shaft 3 stops rotating, ensuring that the ceramic capacitor layer is in the peeling state at the edge of the rotating roller 5.

[0050] Peeling state: Take-up shaft 3 starts to wind up, and through the winding force and the adsorption component near the stacking equipment, the ceramic capacitor layer is peeled off from the bottom material layer and directly supplied to the stacking equipment.

[0051] Reset status: The peeling frame 4 slides away from the stacking equipment.

[0052] In the above closed-loop operation, the correction frame 10 continuously corrects the offset of the bottom material layer according to the signal of the position sensor 11, the tension roller group 7 actively adjusts the tension, and the bonding roller group 8 stabilizes the material state through negative pressure bonding, anti-wrinkle roller smoothing and tension adaptive structure. No additional transfer mechanism is required throughout the process, realizing automated and damage-free material feeding.

[0053] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A supply apparatus for MLCC ceramic capacitor production, for separating a base material layer and a ceramic capacitor layer in a material tape and providing the ceramic capacitor layer to a lamination apparatus, characterized by, The utility model relates to a kind of ceramic capacitor stripping device, including: Support frame (1), the support frame (1) is rotationally equipped with the feeding shaft (2) for feeding belt winding and the material layer recovery collecting shaft (3) for recovery base material for feeding belt and is equipped with several feeding roller groups for feeding belt; Peeling frame (4), the peeling frame (4) reciprocatingly slides in the support frame (1), and the peeling frame (4) is equipped with rotating roller (5), and feeding belt can sequentially pass the feeding shaft (2), several feeding roller groups, rotating roller (5) and collecting shaft (3), after the peeling frame (4) slides, feeding belt can be brought into laminating equipment; Cutting part, the cutting part is equipped in the support frame (1), is located above rotating roller (5), and the cutting part is used to cut ceramic capacitor layer in feeding belt; Suction accessory, the suction accessory is equipped in the support frame (1) near laminating equipment one end; Wherein, the peeling frame (4) is divided into feeding state, peeling state and reset state, when the peeling frame (4) is in feeding state, the peeling frame (4) slides into laminating equipment, and collecting shaft (3) stops rotating and is wound; When the peeling frame (4) is in peeling state, collecting shaft (3) rotates and is wound, so that after cutting ceramic capacitor layer, ceramic capacitor layer can be peeled from base material under the adsorption of suction accessory when base material is wound by collecting shaft (3); When the peeling frame (4) is in reset state, the peeling frame (4) slides away from laminating equipment.

2. The feeding apparatus for producing an MLCC ceramic capacitor according to claim 1, wherein The peeling frame (4) slides along horizontal transverse, further including: Guide feeding roller (6), the guide feeding roller (6) is rotationally equipped in the support frame (2), and is located rear side of the peeling frame (4), and feeding belt can sequentially pass several feeding roller groups, guide feeding roller (6) and rotating roller (5); Wherein, the lowest point of guide feeding roller (6) and the highest point of rotating roller (5) are located at the same height, so that feeding belt can be horizontally transported from guide feeding roller (6) to rotating roller (5).

3. The feeding apparatus for producing MLCC ceramic capacitors according to claim 1, wherein The peeling frame (4) slides along horizontal transverse, further including: Guide recovery roller (9), the guide recovery roller (9) is rotationally equipped in the support frame (2), and is located rear side of the peeling frame (4), and feeding belt can sequentially pass rotating roller (5), guide recovery roller (9) and collecting shaft (3); Wherein, the highest point of guide recovery roller (9) and the lowest point of rotating roller (5) are located at the same height, so that feeding belt can be horizontally transported from rotating roller (5) to guide recovery roller (9).

4. The feeding apparatus for producing MLCC ceramic capacitors according to claim 1, wherein The peeling frame (4) bottom both sides are equipped with sliding block (12), and the support frame (1) is equipped with slide rail (13) along horizontal transverse, and two sliding blocks (12) are slidably connected with slide rail (13); Driver, the driver is equipped in the support frame (1), and is used to drive the peeling frame (4) to move; Wherein, two sliding blocks (12) and the peeling frame (4) bottom form avoiding space (1201) between, and the avoiding space (1201) is used to avoid the components in laminating equipment.

5. The feeding device for producing MLCC ceramic capacitor according to any one of claims 1-4, characterized in that, The feeding roller group includes a tensioning roller group (7) and a pressing roller group (8). The material strip can pass around the tensioning roller group (7) and the pressing roller group (8) in sequence. The tensioning roller group (7) is used to tension the base material layer, and the pressing roller group (8) is used to press the base material layer to ensure the tension of the material strip.

6. The feeding apparatus for producing an MLCC ceramic capacitor according to claim 5, wherein The tensioning roller assembly (7) includes: Tensioning frame (701), which is horizontally movable on the support frame (1), and conveying roller (702) is rotatably mounted on the tensioning frame (701). The conveying roller (702) is used to convey the material belt. After the tensioning frame (701) moves, the tension of the material belt can be adjusted. A drive cylinder is mounted on the support frame (1) and is used to drive the tension frame (701) to move.

7. The feeding apparatus for producing an MLCC ceramic capacitor according to claim 5, wherein The bonding roller assembly (8) includes: A negative pressure adsorption roller (801) is rotatably mounted on the support frame (1). The negative pressure adsorption roller (801) is used to convey the material belt, and negative pressure adsorption holes are opened on the side wall of the negative pressure adsorption roller (801). The negative pressure adsorption holes can adsorb and stick to the material belt. A driving component is provided on the support frame (1) and is used to drive the negative pressure adsorption roller (801) to rotate.

8. The feeding device for producing MLCC ceramic capacitor according to any one of claims 1-4, characterized in that, The bottom of the support frame (1) is slidably connected to a correction frame (10), the correction frame (10) is slidably arranged in a horizontal longitudinal direction, the feeding shaft (2) is rotatably mounted on the correction frame (10), and the support frame (1) also has a built-in controller. The feeding equipment for producing MLCC ceramic capacitors further includes: A position sensor (11) is mounted on the support frame (1) and electrically connected to the controller. The position sensor (11) is used to detect the offset of the material belt edge and generate a signal. The controller is used to receive the signal and send a control command to the correction frame (10) to control the correction movement of the correction frame (10).

9. The feeding apparatus for producing an MLCC ceramic capacitor according to claim 8, wherein The position sensor (11) includes two photoelectric sensors arranged symmetrically. Both photoelectric sensors are electrically connected to the controller and are located on both sides of the feed belt, and a detection area is formed between the two photoelectric sensors where the edge of the feed belt passes through.

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