Patent Description:
Due to high requirements imposed by a battery electrode plate on the quality of cutting, a cutting device of the electrode plate needs to be adjusted at the cost of a lot of manpower in an assembling process. A trial cut test of the cutting device needs to be performed by using the electrode plate in such a process. Data about the service life of a blade during operation is not suitable for being fed back because the manufacturing and assembling processes of the blade vary. The operating status of the blade has to be determined by sampling the electrode plate, thereby affecting production efficiency of the cutting procedure.

<CIT> discloses a blade monitoring structure for a fixed blade, wherein the fixed blade monitoring structure comprises a fixed blade die set, comprising a fixed blade holder and a fixed blade mounted on the fixed blade holder; and a fixed blade monitoring assembly connected to the fixed blade holder, and configured to render status of the fixed blade by monitoring a relative force received by the fixed blade holder.

An objective of the invention is to provide a fixed blade monitoring structure and a cutting device to implement parameterized assembling and tuning of the cutting device, reduce manpower consumption, and shorten the mounting and tuning period.

According to a first aspect, the invention provides a fixed blade monitoring structure as specified in the claim set, including: an anvil, where a sliding sleeve is disposed on the anvil; a fixed blade die set, including a fixed blade holder and a fixed blade mounted on the fixed blade holder, where the fixed blade holder is slidably mounted in the sliding sleeve; and a fixed blade monitoring assembly, mounted in the sliding sleeve and connected to the fixed blade holder, and configured to render status of the fixed blade by monitoring a relative force received by the fixed blade holder.

In the technical solution of embodiments of the invention, during the operation of the cutting device, a relative force exists between the fixed blade and movable blade. The fixed blade and the movable blade are arranged in an up-and-down staggered manner. The fixed blade die set is driven to slide in the sliding sleeve due to the relative force. By disposing the fixed blade monitoring assembly at a joint between the fixed blade holder and the anvil, the status of the fixed blade holder can be monitored. The status of the fixed blade holder derives from the fixed blade disposed on the fixed blade holder. That is, the fixed blade monitoring assembly can implement monitoring of the status of the fixed blade. The status of the fixed blade can be used as a reference to implement parameterized assembling and tuning of the cutting device, thereby reducing the manpower consumption in the tuning process and shortening the mounting and tuning period. In addition, with the increase of the operation time of the cutting device, wear occurs between the fixed blade and the movable blade, and reduces the relative force between the fixed blade and the movable blade. The reduction of the relative force can be rendered in time by the readout of a pressure gauge. In this way, the status of the cutter is fed back in time to facilitate timely adjustment.

In some embodiments, the fixed blade monitoring assembly includes a pressure sensor, one end of the pressure sensor abuts on a flank of the sliding sleeve, and the other end abuts on the fixed blade holder. The pressure sensor disposed not only enables numerical monitoring on the pressure, but also enables estimation and analysis of the blade status based on the change of the pressure value to implement the tracking of the blade status.

In some embodiments, the fixed blade monitoring assembly further includes an elastic adjustment portion. The elastic adjustment portion is disposed on an opposite side of the pressure sensor and is configured to elastically connect the fixed blade holder and the anvil, so as to adjust a position of the fixed blade holder in a horizontal direction of the sliding sleeve.

By disposing the elastic adjustment portion, the position of the fixed blade holder can be adjusted on the basis of ensuring the sliding ability of the fixed blade holder. On the one hand, this facilitates timely assembling and tuning. On the other hand, by adjusting the position of the fixed blade after the blade is worn down, the acting force between the fixed blade and the movable blade is kept within a specified range to maintain a good cutting state between the fixed blade and the movable blade.

In some embodiments, the elastic adjustment portion includes a connecting portion and an elastic piece. The connecting portion is parallel to a sliding direction. One end of the connecting portion is threadedly connected to an end of the fixed blade holder, and the other end is elastically connected to the anvil by the elastic piece.

By disposing the connecting portion and the elastic piece, the fixed blade holder is elastically connected to the anvil by using connecting portion and the elastic piece that are connected to each other. In this way, the position of the fixed blade holder is adjusted on the basis of ensuring the sliding ability of the fixed blade holder.

In some embodiments, the elastic piece is a compression spring or a compression disc spring. The compression spring or the compression disc spring sheathes the connecting portion, one end thereof abuts on the anvil, and the other end is connected to an end of the connecting portion. Through the compression spring or the compression disc spring, the elastic adjustment portion is elastically deformable to implement elastic adjustment.

In some embodiments, a first mounting hole in communication with the sliding sleeve is made on the anvil, and a second mounting hole is made at the end of the fixed blade holder. One end of the connecting portion passes through the first mounting hole and is threadedly connected to the second mounting hole. By disposing the first mounting hole and the second mounting hole that are in positional correspondence to each other, the connecting portion and the elastic piece are mounted in a corresponding manner. The structure is simple and easy to implement, and the connecting portion is caused to be located inside the anvil to reduce interference with other structures.

In some embodiments, the connecting portion is a bolt, and a head of the bolt abuts on the compression spring or the compression disc spring. By disposing the connecting portion as a bolt, the foregoing connection can be implemented more effectively by using the structure of the bolt, and the material is simple and easily available.

In some embodiments, the fixed blade monitoring structure further includes a controller and a display, and the controller is electrically connected to the pressure sensor and the display separately. By disposing the controller and the display, reading and displaying of data in the pressure sensor are implemented.

In some embodiments, a jack is disposed at an end of the fixed blade holder, and the jack is set in the sliding sleeve. The jack disposed at the end of the fixed blade holder reduces the dimensions of the anvil, and in turn, reduces the cost of manufacture.

According to a second aspect, a cutting device is provided, which includes the fixed blade monitoring structure according to the the invention.

The foregoing description is merely an overview of the technical solutions of the invention.

The following expounds specific embodiments of the invention to enable a clearer understanding of the technical solutions, enable implementation based on the content of the specification, and make the foregoing and other objectives, features, and advantages of the invention more evident and comprehensible.

By reading the following detailed description of exemplary embodiments, a person of ordinary skill in the art becomes clearly aware of various other advantages and benefits. The drawings are merely intended to illustrate the exemplary embodiments, but not intended to limit the scope of the claims.

In all the drawings, the same reference numeral represents the same component. In the drawings:.

<NUM>-fixed blade monitoring structure; <NUM>-driving structure; <NUM>-anvil; <NUM>-fixed blade die set; <NUM>-pressure sensor; <NUM>-sliding sleeve; <NUM>-first mounting hole; <NUM>-fixed blade; <NUM>-movable blade; <NUM>-fixed blade holder; <NUM>-jack; <NUM>-second mounting hole; <NUM>-connecting portion; <NUM>-elastic piece.

Embodiments of the technical solutions of the invention are described in detail below with reference to the drawings. The following embodiments are merely intended to describe the technical solutions of the invention more clearly, and are merely exemplary but without hereby limiting the protection scope of the claims.

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as usually understood by a person skilled in the technical field of this invention. The terms used herein are merely intended for describing specific embodiments but are not intended to limit the scope of protection. The terms "include" and "contain" and any variations thereof used in the specification, claims, and brief description of drawings of this disclosure are intended as non-exclusive inclusion.

In the description of the embodiments, the technical terms "first" and "second" are merely intended to distinguish different objects but not intended to indicate or imply relative importance or implicitly specify the number of the indicated technical features, the specific order, or order of priority. In the description of the embodiments, unless otherwise expressly specified, "a plurality of" means two or more.

Reference to "embodiment" herein means that a specific feature, structure or characteristic described with reference to the embodiment may be included in at least one embodiment of this application. Reference to this term in different places in the specification does not necessarily represent the same embodiment, nor does it represent an independent or alternative embodiment in a mutually exclusive relationship with other embodiments. A person skilled in the art explicitly and implicitly understands that the embodiments described herein may be combined with other embodiments.

In the description of embodiments, the term "and/or" merely indicates a relationship between related items, and represents three possible relationships. For example, "A and/or B" may represent the following three circumstances: A alone, both A and B, and B alone. In addition, the character "/" herein generally indicates an "or" relationship between the item preceding the character and the item following the character.

In the description of embodiments, the term "a plurality of" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of pieces" means two or more pieces (including two pieces).

In the description of embodiments, a direction or a positional relationship indicated by the terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "before", "after", "left", "right", "vertical", "horizontal", "top", "bottom", "in", "out", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" is a direction or positional relationship based on the illustration in the drawings, and is merely intended for ease or brevity of description of embodiments, but not intended to indicate or imply that the indicated device or component is necessarily located in the specified direction or constructed or operated in the specified direction. Therefore, such terms are not to be understood as a limitation on embodiments.

In the description of this application, unless otherwise expressly specified and qualified, the technical terms such as "mounting", "concatenation", "connection", and "fixing" need to be understood in a broad sense, for example, understood as a fixed connection or a detachable connection or understood as being integrated into a whole; or understood be as a mechanical connection or an electrical connection, a direct connection or an indirect connection implemented through an intermediary; or understood as interior communication between two components or interaction between two components. A person of ordinary skill in the art understands the specific meanings of the terms in the embodiments according to the context.

As disclosed in the background section above, due to the high requirements of a battery electrode plate on the quality of cutting, the cutting device of the electrode plate needs to be adjusted at the cost of a lot of manpower during the assembling. A trial cut test of the cutting device needs to be performed by using the electrode plate in such a process. Specifically, the test includes the tuning of a horizontal displacement and a vertical displacement of a driving structure <NUM> in the cutting device, and the tuning of a relative position between the movable blade <NUM> and the fixed blade <NUM>. The tuning aims to make the advancing movable blade <NUM> exactly fit in with the fixed blade <NUM> and cut off the electrode plate at a preset position. However, the foregoing parameterized assembling and tuning process lacks necessary references other than the electrode plate, and therefore, takes a lot of manpower, and incurs a relatively long period of mounting and tuning. In addition, with the increase of the operation time of the cutting device, the fixed blade <NUM> and the movable blade <NUM> are both worn down to some extent. Data about the service life of a blade is not suitable for being fed back because the manufacturing and assembling processes of the blade vary. The operating status of the blade has to be determined by sampling the electrode plate, thereby increasing a scrap rate of the electrode plate and affecting the production efficiency of the cutting procedure.

In view of the foregoing problems, as shown in <FIG>, which illustratively shows an X direction as a horizontal direction and a Y direction as a vertical direction, some embodiments of this application provide a fixed blade monitoring structure <NUM> configured to monitor a fixed blade during cutting of a battery electrode plate. The fixed blade monitoring structure includes: an anvil <NUM>, a fixed blade die set <NUM>, and a fixed blade <NUM> monitoring assembly. A sliding sleeve <NUM> is disposed on the anvil <NUM>. The fixed blade die set <NUM> includes a fixed blade holder <NUM> and a fixed blade <NUM> mounted on the fixed blade holder <NUM>. An end of the fixed blade holder <NUM> is slidably mounted in the sliding sleeve <NUM>. The fixed blade <NUM> monitoring assembly is mounted in the sliding sleeve <NUM> and connected to the fixed blade holder <NUM>, and configured to render status of the fixed blade <NUM> by monitoring a relative force received by the end of the fixed blade holder <NUM>.

The anvil <NUM> is a mounting structure, and is mounted on a horizontal driving assembly of a cutting structure, and specifically, mounted on a mover of the horizontal driving assembly, and is configured to make horizontal reciprocating movement along a travel direction of a web as driven by the horizontal driving assembly. The horizontal reciprocating movement drives a movable blade <NUM> and a fixed blade die set <NUM> on the anvil <NUM> to move horizontally synchronously.

The fixed blade die set <NUM> includes a fixed blade holder <NUM> and a fixed blade <NUM> mounted on the fixed blade holder <NUM>. The fixed blade <NUM> and the movable blade <NUM> are in up-and-down correspondence and arranged in a staggered manner. The movable blade <NUM> is connected to the driving structure <NUM>, and is configured to move downward as driven by the driving structure <NUM>, so as to fit with the fixed blade <NUM> to cut off an electrode plate. Because the fixed blade and the movable blade are in up-and-down correspondence and arranged in a staggered manner, a relative force exists between the movable blade <NUM> and the fixed blade <NUM> to some extent during the cut-off operation, and in turn, a relative force is generated between the movable blade <NUM> and the fixed blade <NUM>. The relative force exerted by the movable blade <NUM> on the fixed blade <NUM> can be transmitted to the fixed blade holder <NUM>, so that a relative force exists between the end of the fixed blade holder <NUM> and the sliding sleeve <NUM>.

The fixed blade <NUM> monitoring assembly is disposed in the sliding sleeve <NUM> and connected to the end of the fixed blade holder <NUM>, and is configured to obtain the relative force between the end of the fixed blade holder <NUM> and the sliding sleeve <NUM>, and render the relative force in the form of data. The relative force between the end of the fixed blade holder <NUM> and the sliding sleeve <NUM> derives from the relative force between the fixed blade <NUM> and the movable blade <NUM>. That is, the fixed blade <NUM> monitoring assembly can render the relative force between the fixed blade <NUM> and the movable blade <NUM> during the cut-off operation in the form of data. The relative force rendered in the form of data is suitable for feeding back the status of the fixed blade <NUM> and the movable blade <NUM>, and in turn, is suitable for serving as a reference for determining the status of the assembling and tuning of the cutting device, thereby implementing parameterized assembling and tuning of the cutting device, reducing manpower consumption, and shortening the period of mounting and tuning.

In addition, with the increase of the operation time of the cutting device, both the fixed blade <NUM> and the movable blade <NUM> are worn down to some extent. In this case, a distance between the fixed blade and the movable blade increases relatively, so that the relative force between them decreases relatively. The decreased relative force is rendered as a pressure value by the fixed blade <NUM> monitoring assembly, and the pressure value also decreases relatively, so that the status of the fixed blade <NUM> is fed back in time to facilitate timely adjustment.

As shown in <FIG>, in some embodiments of this application, the fixed blade <NUM> monitoring assembly includes a pressure sensor <NUM>. One end of the pressure sensor <NUM> abuts on a flank of the sliding sleeve <NUM>, and the other end abuts on the end of the fixed blade holder <NUM>.

The pressure sensor <NUM> is a precision component and can convert pressure into a readable and storable electrical signal. The pressure sensor <NUM> disposed not only enables numerical monitoring on the pressure, but also enables estimation and analysis of the blade status based on the change of the pressure value to implement the tracking of the blade status.

In some embodiments of this application, the fixed blade <NUM> monitoring assembly further includes an elastic adjustment portion. The elastic adjustment portion is disposed on an opposite side of the pressure sensor <NUM> and is configured to elastically connect the fixed blade holder <NUM> and the anvil <NUM>, so as to adjust a position of the fixed blade holder <NUM> in a horizontal direction of the sliding sleeve <NUM>.

The elastic adjustment portion is an elastic structure, and is inherently elastically deformable to some extent in addition to being capable of displacement adjustment. The elastic adjustment portion is disposed on the opposite side of the pressure sensor <NUM> and is connected to the anvil <NUM> and the fixed blade holder <NUM> separately, and is configured to implement adjustable elastic connection between the anvil <NUM> and the fixed blade <NUM>. This not only enables adjustment of the position of the end of the fixed blade holder <NUM> in the sliding sleeve <NUM>, but also ensures that the end of the fixed blade holder <NUM> slides against the sliding sleeve <NUM> along the horizontal direction in the sliding sleeve <NUM>.

By disposing the elastic adjustment portion, the position of the fixed blade <NUM> can be adjusted in time. On the one hand, this facilitates timely assembling and tuning. On the other hand, by adjusting the position of the fixed blade <NUM> after the blade is worn down, the acting force between the fixed blade <NUM> and the movable blade <NUM> is kept within a specified range to maintain a good cutting state between the fixed blade <NUM> and the movable blade <NUM>.

In some embodiments of this application, the elastic adjustment portion includes a connecting portion and an elastic piece <NUM>. The connecting portion is parallel to a sliding direction. One end of the connecting portion is threadedly connected to an end of the fixed blade holder <NUM>, and the other end is elastically connected to the anvil <NUM> by the elastic piece <NUM>.

The elastic piece <NUM> may be a compression elastic piece or a tensile elastic piece. The connection portion is threadedly connected to the end of the fixed blade holder <NUM>, and the threaded connection length affects the length of the connection portion. The elastic piece <NUM> combined with the connecting portion makes the distance between the fixed blade holder <NUM> and the anvil <NUM> adjustable through the connection length of the connecting portion. The relative sliding of the end of the fixed blade holder <NUM> can be implemented by the elastic piece <NUM>.

By disposing the connecting portion and the elastic piece <NUM>, the fixed blade holder <NUM> is elastically connected to the anvil <NUM> by using connecting portion and the elastic piece <NUM> that are connected to each other. In this way, the position of the fixed blade holder <NUM> is adjusted on the basis of ensuring the sliding ability of the fixed blade holder <NUM>.

In some embodiments of this application, the elastic piece <NUM> is a compression spring or a compression disc spring. The compression spring or the compression disc spring sheathes the connecting portion, one end thereof abuts on the anvil <NUM>, and the other end is connected to an end of the connecting portion.

Through the compression spring or the compression disc spring, the elastic adjustment portion is elastically deformable to implement elastic adjustment.

Referring to <FIG>, in some embodiments of this application, a first mounting hole <NUM> in communication with the sliding sleeve <NUM> is made on the anvil <NUM>, and a second mounting hole <NUM> is made at the end of the fixed blade holder <NUM>. One end of the connecting portion passes through the first mounting hole <NUM> and is threadedly connected to the second mounting hole <NUM>.

The first mounting hole <NUM> is a through-hole, and is configured to implement communication between the sliding sleeve <NUM> and an outer wall of the anvil <NUM>. The first mounting hole <NUM> is tucked inward at an inner wall of the sliding sleeve <NUM> to form an annular boss suitable for abutting on the elastic piece <NUM>. The second mounting hole <NUM> is coaxial with the first mounting hole <NUM>, and is configured to enable the connecting portion to be threadedly connected to the second mounting hole <NUM> after the connecting portion passes through the first mounting hole <NUM>.

By disposing the first mounting hole <NUM> and the second mounting hole <NUM> that are in positional correspondence to each other, the connecting portion and the elastic piece <NUM> are mounted in a corresponding manner. The structure is simple and easy to implement, and the connecting portion is caused to be located inside the anvil <NUM> to reduce interference with other structures.

In some embodiments of this application, the connecting portion is a bolt <NUM>, and a head of the bolt <NUM> abuts on the compression spring or the compression disc spring.

The bolt <NUM> includes a rod and a head. The rod is configured to be threadedly connected to the end of the fixed blade holder <NUM>, and the head is configured to abut on the compression spring or the compression disc spring. By disposing the connecting portion as a bolt <NUM>, the foregoing connection can be implemented more effectively by using the structure of the bolt <NUM>, and the material is simple and easily available.

In some embodiments of this application, the fixed blade monitoring structure further includes a controller and a display, and the controller is electrically connected to the pressure sensor <NUM> and the display separately.

The controller and the display can be used together with the pressure sensor <NUM> to acquire and process electrical signals in the pressure sensor <NUM> and display the electrical signals on the display. By disposing the controller and the display, reading and displaying of data in the pressure sensor <NUM> are implemented.

In some embodiments of this application, a jack <NUM> is disposed at an end of the fixed blade holder <NUM>, and the jack <NUM> is set in the sliding sleeve <NUM>.

Compared with the fixed blade holder <NUM>, the jack <NUM> is relatively small in size, and therefore, the required size of the sliding sleeve <NUM> is also relatively small. In this way, the fixed blade holder <NUM> can be mounted on a relatively small anvil <NUM>, thereby reducing the size of the overall structure and reducing the cost of manufacture.

The jack <NUM> disposed at the end of the fixed blade holder <NUM> reduces the dimensions of the anvil <NUM>, and in turn, reduces the cost of manufacture.

According to some embodiments of this application, this application further provides a cutting device. The cutting device includes the fixed blade monitoring structure <NUM> applied to a cutting device of a lithium battery electrode plate according to any one of the foregoing solutions.

According to some embodiments of this application, referring to <FIG>, this application provides a fixed blade monitoring structure applied to a cutting device of a lithium battery electrode plate. The fixed blade monitoring structure includes an anvil <NUM> containing a sliding sleeve <NUM>, a fixed blade die set <NUM> containing a fixed blade holder <NUM> and a fixed blade <NUM>, and a fixed blade <NUM> monitoring assembly. The fixed blade <NUM> is mounted in the fixed blade holder <NUM>, and the fixed blade and the movable blade <NUM> are in up-and-down correspondence and arranged in a staggered manner. The fixed blade <NUM> monitoring assembly is disposed in the sliding sleeve <NUM>, and one end of the fixed blade monitoring assembly abuts on a flank of the sliding sleeve <NUM>, and the other end abuts on the holder. During the operation of the cutting device, a relative force exists between the fixed blade <NUM> and movable blade <NUM>. The relative force is transmitted to the fixed blade holder <NUM>. The fixed knife <NUM> monitoring assembly detects the relative force on the end of the fixed blade holder <NUM> and renders the relative force in the form of data. The data can be used as a reference for adjustment and test, thereby implementing parameterized adjustment and test of the cutting device, shortening the mounting and tuning period, monitoring the status of the movable blade <NUM> during the cutting, and facilitating timely adjustment of the relative status of the movable blade <NUM> and the fixed blade <NUM>.

Finally, it needs to be noted that the foregoing embodiments are merely intended for describing the technical solutions of the invention other than limiting the scope of the claims.

Claim 1:
A fixed blade monitoring structure (<NUM>) suitable for an electrode plate cutting device, characterized in that the fixed blade monitoring structure (<NUM>) comprises:
an anvil (<NUM>), wherein a sliding sleeve (<NUM>) is disposed on the anvil (<NUM>);
a fixed blade die set (<NUM>), comprising a fixed blade holder (<NUM>) and a fixed blade (<NUM>) mounted on the fixed blade holder (<NUM>), wherein the fixed blade holder (<NUM>) is slidably mounted in the sliding sleeve (<NUM>); and
a fixed blade monitoring assembly, mounted in the sliding sleeve (<NUM>) and connected to the fixed blade holder (<NUM>), and configured to render status of the fixed blade (<NUM>) by monitoring a relative force received by the fixed blade holder (<NUM>).