Patent Description:
In a coating process, a battery electrode plate needs to be put into an oven for drying. In order to ensure the drying effect and production efficiency, the oven is generally long and provided with a plurality of guide rollers inside. As a result, a large part of the electrode plate is located in the oven in the coating process, causing an increased probability of breakage of the electrode plate in the oven.

When the electrode plate is broken in the oven, because the oven is long, the broken electrode plate can be manually pulled out of the oven for connection only when a side door of the oven is opened. In this process, because the electrode plate is pulled partly out of the oven, a force application direction will deviate from a movement direction of the electrode plate in the oven, causing misalignment or even secondary breakage of the electrode plate. In addition, manual connection from the side is not conducive to improving productivity. <CIT> relates to an electrode plate drying device and electrode plate drying method.

In view of this, it is necessary to provide a conveyor to resolve the problem that electrode plates broken in a coating process are inconveniently handled.

According to a first aspect, this application provides a conveyor as specified by any of claims <NUM>-<NUM> for transporting an electrode plate, including an oven, a first guide rail and a second guide rail, and a conveying assembly. The first guide rail and a second guide rail are spaced apart from each other inside the oven in a first direction, and a first opening and a second opening are respectively provided on surfaces of the first guide rail and the second guide rail that face each other. Two ends of the conveying assembly in the first direction are movably disposed in the first guide rail and the second guide rail through the first opening and the second opening, respectively, and the conveying assembly is connected to the electrode plate for transporting the electrode plate inside the oven; the conveying assembly (<NUM>) comprises a conveying rod (<NUM>) and two movable assemblies (<NUM>), wherein the conveying rod (<NUM>) is connected to the electrode plate (<NUM>), the two movable assemblies (<NUM>) are disposed at two ends of the conveying rod (<NUM>) in the first direction (a), respectively, and the movable assemblies (<NUM>) are movably disposed in the first guide rail (<NUM>) and the second guide rail (<NUM>), respectively.

The conveying assembly can fasten electrode plate and drive the electrode plate to move along the first guide rail and the second guide rail, so as to implement automatic conveying of the electrode plate inside the oven, thereby facilitating connection of the broken electrode plate. In addition, the conveying assembly is inserted into the first guide rail and the second guide rail in the first direction, which can reduce the occupied space in a height direction, thereby improving the space utilization rate inside the oven.

The conveying rod is fixedly connected to the electrode plate, and the two movable assemblies are respectively located at two ends of the conveying rod and move synchronously in the first guide rail and the second guide rail, such that forces applied on the two ends of the conveying rod can be more uniform, which makes a force applied on the electrode plate in the moving process more uniform and effectively avoids the breakage.

In some embodiments, the first guide rail is provided with a first guide groove extending in a second direction, the second guide rail is provided with a second guide groove extending in the second direction, and the two movable assemblies are movably accommodated in the first guide groove and the second guide groove, respectively; where the second direction is a transporting direction of the electrode plate and intersects the first direction.

The first guide groove and the second guide groove can respectively restrict the two movable assemblies therein, thereby making the two movable assemblies move more stably.

In some embodiments, the movable assembly includes a connection portion, first sliding wheels, and a floating portion. The connection portion is connected to the conveying rod, and the first sliding wheels are disposed on the connection portion. The floating portion is disposed on a side of the connection portion facing away from the conveying rod, where a side of the floating portion facing away from the connection portion abuts against the first guide groove or the second guide groove so as to floatingly adjust a dimension of the conveying assembly in the first direction.

A distance between the conveying assembly and the first guide rail or the second guide rail in the first direction is flexibly adjusted by the floating portion, which can effectively avoid jamming of the conveying rod caused by the collision between the connection portion and the first guide rail or the second guide rail, and can make the movement of the conveying rod smoother.

In some embodiments, the floating portion includes a mounting bracket and an elastic member. The mounting bracket is spaced apart from the connection portion. The elastic member is connected between the mounting bracket and the connection portion so as to floatingly adjust the dimension of the conveying assembly in the first direction.

The distance between the conveying assembly and the first guide rail or the second guide rail in the first direction is adjusted by the elastic member, which can make the adjustment process more sensitive, improving the adjustment accuracy.

In some embodiments, the floating portion includes a second sliding wheel, where the second sliding wheel is rotatably connected to the mounting bracket, and spaced apart from the connection portion in the first direction. The second sliding wheel can convert sliding friction between the mounting bracket and the first guide rail or the second guide rail into rolling friction, reducing the friction therebetween, and making the movable assembly move more smoothly in the first guide rail or the second guide rail.

In some embodiments, the second sliding wheel exceeds the first sliding wheel in the first direction. When the movable assembly is accommodated in the first guide rail or the second guide rail, it can ensure that the second sliding wheel is first in contact with an inner wall of the first guide rail or the second guide rail, thereby ensuring that the elastic member can effectively adjust the distance between the conveying assembly and the first guide rail or the first guide rail in the first direction.

In some embodiments, the first guide rail and the second guide rail are non-metallic guide rails; and/or the first sliding wheels and the second sliding wheel are non-metal sliding wheels. The use of non-metallic materials can prevent the first sliding wheels and the second sliding wheel from producing metal particles when moving in the first guide rail and the second guide rail, thereby preventing the metal particles from contaminating the electrode plate.

In some embodiments, the first guide rail and the second guide rail each include a top wall, a bottom wall, a first side wall, and two second side walls. The top wall is disposed opposite the bottom wall, the first side wall is connected between the top wall and the bottom wall, and the two second side walls are respectively formed by edges of the top wall and the bottom wall that are away from the first side wall extending toward each other and bending toward the first side wall. The top wall, the bottom wall, the first side wall, and the two second side walls in the first guide rail enclose the first guide groove, the top wall, the bottom wall, the first side wall, and the two second side walls in the second guide rail enclose the second guide groove, and the first side wall is constructed as a side wall of the corresponding first guide groove or the corresponding second guide groove. The first opening and the second opening are formed between the two second side walls in the first guide rail and between the two second side walls in the second guide rail, respectively.

The first guide groove and the second guide groove each formed through enclosure of the top wall, the bottom wall, the first side wall, and the two second side walls can better restrict the first sliding wheels therein, thereby ensuring stable movement of the movable assembly within the first guide rail or a second guide rail.

In some embodiments, some of the first sliding wheels are movably disposed between the top wall and the second side wall adjacent to the top wall, and the remaining first sliding wheels are movably disposed between the bottom wall and the second side wall adjacent to the bottom wall. In this way, the movable assembly is more tightly connected to the first guide rail and the second guide rail, preventing the movable assembly from detaching from the first guide rail or the second guide rail, thereby ensuring stable traveling of the electrode plate.

In the conveyor, the conveying assembly drives the electrode plate to move inside the oven, conveying the electrode plate, thereby preventing the electrode plate from being broken inside the oven. In addition, the first opening and the second opening are respectively provided on the surfaces of the first guide rail and the second guide rail that face each other, such that the conveying assembly can be inserted into the first guide rail and the second guide rail in the first direction, thereby reducing the space occupied by the conveyor in the oven in a height direction and making the conveying of the electrode plate smoother.

In the drawings: <NUM>: conveyor; <NUM>: electrode plate; <NUM>: first guide rail; <NUM>: second guide rail; <NUM>: conveying assembly; <NUM>: first opening; <NUM>: first guide groove; <NUM>: top wall; <NUM>: bottom wall; <NUM>: first side wall; <NUM>: second side wall; <NUM>: second opening; <NUM>: second guide groove; <NUM>: conveying rod; <NUM>: movable assembly; <NUM>: connection portion; <NUM>: first sliding wheel; <NUM>: floating portion; <NUM>: escape groove; <NUM>: mounting bracket; <NUM>: elastic member; <NUM>: second sliding wheel; a: first direction; and b: second direction.

To make the above objectives, features, and advantages of the present invention more obvious and easy to understand, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are stated in the following descriptions in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not restricted by the specific embodiments disclosed below.

In the descriptions of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center", "vertical", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "perpendicular", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", " radial", "circumferential", and the like are based on the orientations or positional relationships shown in the accompanying drawings, are merely intended to facilitate the descriptions of the present invention and simplify the descriptions, are not intended to indicate or imply that the apparatuses or components mentioned in the present invention must have specific orientations, or be constructed and operated for a specific orientation, and therefore shall not be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of the number of indicated technical features. Therefore, a feature defined by "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" is at least two, for example two or three, unless otherwise expressly specified.

In the present invention, unless otherwise expressly specified and defined, the terms such as "mount", "connect", "join", and "fasten" should be understood in their general senses. For example, they may refer to a fixed connection, a detachable connection, or an integral connection, may refer to a mechanical connection or electrical connection, any may refer to a direct connection, an indirect connection via an intermediate medium, or an interaction between two components, unless otherwise expressly specified. Persons of ordinary skills in the art can understand specific meanings of these terms in the present invention as appropriate to specific situations.

In the present invention, unless otherwise expressly specified and defined, a first feature being "above" or "below" a second feature may mean that the first feature is in direct contact with the second feature or may mean that the first feature and the second feature are in indirect contact through an intermediary. Moreover, a first feature being "above", "over", and "on the top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or may simply mean that the first feature is higher in elevation than the second feature. Moreover, a first feature being "under", "below", and "underneath" a second feature may mean that the first feature is directly under or obliquely under the second feature, or may simply mean that the first feature is lower in elevation than the second feature.

It should be noted that when a component is referred to as being "fastened to" or "disposed on" another component, it may be directly fastened to the another component, or there may be a component in between. When a component is deemed as being "connected to" another component, it may be directly connected to the another component, or there may be a component in between. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and other similar expressions as used herein are for illustration only, and are not intended to represent the only implementation.

Currently, from the perspective of market development, use of traction batteries is becoming more and more extensive. Traction batteries are used not only in energy storage power supply systems such as hydroelectric power plants, thermal power plants, wind power plants, and solar power plants, but also widely used in electric transportation tools such as electric bicycles, electric motorcycles, electric vehicles, and fields such as military equipment and aerospace. Along with the continuous expansion of application fields of traction batteries, market demands for traction batteries are also expanding.

A production process of traction batteries includes a coating process. In the coating process, coated battery electrode plates need to be dried in an oven for subsequent treatment. However, to ensure the drying effect and production efficiency, the oven is often provided long such that the electrode plate can be adequately dried. For this reason, during the movement of the electrode plate in the oven, it is much likely that the electrode plate experiences non-uniform force and becomes broken.

In view of the foregoing breakage problem of the electrode plate, if there is no auxiliary apparatus, the conventional method is to stop heating the oven by an operator. After the temperature in the oven drops to an appropriate temperature, the operator puts on labor protection appliance, opens the side door of the oven, and manually pulls the electrode plate in the oven from the side to pass through the oven. After the electrode plate is pulled out of the oven, it is connected to the other broken electrode plate, and this connected part is wound up by slowly traveling. During this period, there is a time-consuming problem. Specifically, enough time is needed for the oven to cool down and heat up after restarting. In addition, when the electrode plate is manually pulled out of the oven, it is easy to cause a force application direction to deviate from a movement direction of the electrode plate in the oven, resulting in misalignment or even secondary breakage of the electrode plate. In addition, due to a narrow space in the oven, it is inconvenient and time-consuming to manually pull the electrode plate out of the oven.

Therefore, in some existing technologies, a auxiliary conveyance structure is provided inside the oven, a fixing base is provided on an inner wall of the oven, a track is fixed, with an opening facing downward, on the fixing base, and a mobile trolley is inserted into the track from bottom to top, such that the trolley is connected to an electrode plate and drives the electrode plate to move along the track.

However, the inventors have found that existing ovens generally have small interior space, especially in the height direction, and in practice, height of the space inside the oven is usually only slightly greater than thickness of the electrode plate. Therefore, in actual operation, the foregoing auxiliary conveyance structure in the prior art often has no practical application value.

Based on this, to implement the automatic conveying of the electrode plate inside the oven and make full use of the interior space of the oven, the applicant has found that the automatic conveying of the electrode plate can be effectively implemented by changing a fastening method of guide rails inside the oven, changing an opening direction of the guide rails, then changing a connection and cooperation mode between a conveying assembly and the guide rails, and reducing the space occupied by a conveyor in an interior height direction of the oven.

From the above considerations, to effectively resolve the automatic conveying of the electrode plate inside the oven and reduce the space occupied by the conveyor in the height direction of the oven, after in-depth research, the inventors have designed a conveyor, in which a conveying assembly is inserted into a first guide rail and a second guide rail in a first direction, that is, in a width direction of the electrode plate. Therefore, the occupied space in the height direction can be reduced, and the electrode plate can be smoothly driven to move inside the oven to implement the automatic conveying of the electrode plate.

Refer to <FIG> each are a schematic structural diagram of a conveyor according to an embodiment of this application. An embodiment of the present invention provides a conveyor <NUM> for transporting an electrode plate <NUM>, including an oven (not shown in the figure), a first guide rail <NUM> and a second guide rail <NUM>, and a conveying assembly <NUM>. The first guide rail <NUM> and a second guide rail <NUM> are spaced apart from each other inside the oven in a first direction a, and a first opening <NUM> and a second opening <NUM> are respectively provided on surfaces of the first guide rail <NUM> and the second guide rail <NUM> that face each other. Two ends of the conveying assembly <NUM> in the first direction a are movably disposed in the first guide rail <NUM> and the second guide rail <NUM> through the first opening <NUM> and the second opening <NUM>, respectively, and the conveying assembly <NUM> is connected to the electrode plate <NUM> for transporting the electrode plate <NUM> inside the oven.

It should be noted that the conveyor <NUM> provided in this application can also be configured to transport other strip materials, with a working principle the same as that when transporting the electrode plate <NUM>, which is not described herein.

Specifically, in this embodiment, the first direction a is a width direction of the electrode plate <NUM>. The first guide rail <NUM> and the second guide rail <NUM> are fixed on two side walls inside the oven, respectively, and the first opening <NUM> and the second opening <NUM> are disposed facing each other. The conveying assembly <NUM> is fixedly connected to the electrode plate <NUM>, and the two ends of the conveying assembly <NUM> in the width direction of the electrode plate <NUM> are inserted into the first guide rail <NUM> and the second guide rail <NUM> through the first opening <NUM> and the second opening <NUM>, respectively, and can drive the electrode plate <NUM> to move synchronously along the first guide rail <NUM> and the second guide rail <NUM>.

The first opening <NUM> and the second opening <NUM> are respectively located on the surfaces of the first guide rail <NUM> and the second guide rail <NUM> that face each other, meaning that opening directions of the first opening <NUM> and the second opening <NUM> are the width direction of the electrode plate <NUM>. Therefore, the conveying assembly <NUM> is movably disposed in the first guide rail <NUM> and the second guide rail <NUM> in the width direction of the electrode plate <NUM>, and height of the conveyor <NUM> is height of the first guide rail <NUM> and the second guide rail <NUM>. In this way, space occupied by the conveyor <NUM> in a height direction can be greatly reduced, and the utilization of space inside the oven can be improved.

In some embodiments, the conveying assembly <NUM> includes a conveying rod <NUM> and two movable assemblies <NUM>, where the conveying rod <NUM> is connected to the electrode plate <NUM>, the two movable assemblies <NUM> are disposed at two ends of the conveying rod <NUM> in the first direction a, respectively, and the movable assemblies <NUM> are movably disposed in the first guide rail <NUM> and the second guide rail <NUM>, respectively.

Specifically, the conveying rod <NUM> extends in the width direction of the electrode plate <NUM> and is configured to fasten the electrode plate <NUM>. The two movable assemblies <NUM> are disposed on the two ends of the conveying rod <NUM> in the width direction of the electrode plate <NUM> respectively. When the movable assemblies <NUM> move within the first guide rail <NUM> and the second guide rail <NUM>, the conveying rod <NUM> can drive the electrode plate <NUM> to move along the first guide rail <NUM> and the second guide rail <NUM>. In this way, the traveling and drying of the electrode plate <NUM> in the oven can be implemented.

Refer to <FIG> is a schematic structural diagram of a first guide rail or a second guide rail according to an embodiment of this application. In some embodiments, the first guide rail <NUM> is provided with a first guide groove <NUM> extending in a second direction b, the second guide rail <NUM> is provided with a second guide groove <NUM> extending in the second direction b, and the two movable assemblies <NUM> are movably accommodated in the first guide groove <NUM> and the second guide groove <NUM>, respectively. The second direction b is a transporting direction of the electrode plate <NUM> and intersects the first direction a.

Specifically, in this embodiment, the second direction b is perpendicular to the first direction a. The first guide groove <NUM> is disposed in an extension direction of the first guide rail <NUM>, the second guide groove <NUM> is disposed in an extension direction of the second guide rail <NUM>, the first opening <NUM> communicates with the first guide groove <NUM>, and the second opening <NUM> communicates with the second guide groove <NUM>. The two movable assemblies <NUM> can move within the first guide groove <NUM> and the second guide groove <NUM>, respectively, so as to drive the electrode plate <NUM> to move smoothly in the extension directions of the first guide rail <NUM> and the second guide rail <NUM>. In addition, the provision of the first guide groove <NUM> and the second guide groove <NUM> can enable the conveying rod <NUM> to drive the electrode plate <NUM> to travel more stably.

Refer to <FIG> and <FIG> together. <FIG> is a schematic structural diagram of a movable assembly according to an embodiment of this application. In some embodiments, the movable assembly <NUM> includes a connection portion <NUM>, first sliding wheels <NUM>, and a floating portion <NUM>. The connection portion <NUM> is connected to the conveying rod <NUM>, and the first sliding wheels <NUM> are disposed on the connection portion <NUM>. The floating portion <NUM> is disposed on a side of the connection portion <NUM> facing away from the conveying rod <NUM>, where a side of the floating portion <NUM> facing away from the connection portion <NUM> abuts against the first guide groove <NUM> or the second guide groove <NUM> so as to floatingly adjust a dimension of the conveying assembly <NUM> in the first direction a.

Specifically, the connection portion <NUM> is fixedly connected to one end of the conveying rod <NUM>, and the first sliding wheels <NUM> can slide in the first guide groove <NUM> or the second guide groove <NUM> so as to drive the conveying rod <NUM> to move in the second direction b. The floating portion <NUM> is disposed on the side of the connection portion <NUM> facing away from the conveying rod <NUM> in the first direction a. Therefore, when the first sliding wheels <NUM> slide in the first guide groove <NUM> or the second guide groove <NUM>, the floating portion <NUM> can abut against an inner side wall of the first guide groove <NUM> or the second guide groove <NUM>, such that during the movement of the conveying rod <NUM>, a distance between the two floating portions <NUM> in the first direction a can be adjusted floatingly.

It should be noted that due to the long length of the oven, when the first guide rail <NUM> and the second guide rail <NUM> are disposed on the inner wall of the oven, there is often a specific mounting error, such that a distance between the first guide rail <NUM> and the second guide rail <NUM> in the width direction of the electrode plate <NUM> is not exactly consistent. Therefore, when the first sliding wheels <NUM> slide in the first guide groove <NUM> or the second guide groove <NUM>, if the distance between the first guide rail <NUM> and the second guide rail <NUM> in the width direction of the electrode plate <NUM> becomes short, it is easy to cause the conveying rod <NUM> to skew, which causes the electrode plate <NUM> to be jammed and affects the traveling of the electrode plate <NUM>.

To resolve the preceding problem, the floating portion <NUM> is disposed on a side of the connection portion <NUM> facing away from the conveying rod <NUM>. When the distance between the first guide rail <NUM> and the second guide rail <NUM> in the width direction of the electrode plate <NUM> becomes short, the floating portion <NUM> can adjust a distance between the connection portion <NUM> and the first guide rail <NUM> or the second guide rail <NUM> in the width direction of the electrode plate <NUM>, so as to avoid jamming of the conveying rod <NUM>.

Optionally, in some embodiments, a plurality of first sliding wheels <NUM> enclose a virtual graph, and the floating portion <NUM> is disposed at the geometric center of the virtual graph. In this way, when the floating portion <NUM> abuts against the inner side wall of the first guide rail <NUM> or the second guide rail <NUM> in the width direction of the electrode plate <NUM>, a pressure transferred by the floating portion <NUM> is applied to the center of the connection portion <NUM>, thereby making a force applied on the connection portion <NUM> more uniform, and avoiding the skewing of the conveying rod <NUM> caused by a non-uniform force. Specifically, in this embodiment, the first sliding wheels <NUM> are provided in a quantity of four and are evenly arranged on the connection portion <NUM> along the periphery of the connection portion <NUM>. Therefore, the four first sliding wheels <NUM> enclose a virtual rectangle, and the floating portion <NUM> is disposed at the geometric center of the virtual rectangle.

In some embodiments, the floating portion <NUM> includes a mounting bracket <NUM> spaced apart from the connection portion <NUM> and an elastic member <NUM> connected between the mounting bracket <NUM> and the connection portion <NUM>. The elastic member <NUM> is configured to floatingly adjust the dimension of the conveying assembly <NUM> in the first direction a.

Specifically, in this embodiment, the elastic member <NUM> is constructed as a spring, and the spring can flexibly adjust the distance between the mounting bracket <NUM> and the inner wall of the first guide rail <NUM> or the second guide rail <NUM> in the width direction of the electrode plate <NUM>, thereby effectively avoiding the jamming of the conveying rod <NUM> when the conveying rod <NUM> drives the electrode plate <NUM> to travel.

In some embodiments, the floating portion <NUM> includes a second sliding wheel <NUM>, where the second sliding wheel <NUM> is rotatably connected to the mounting bracket <NUM> and spaced apart from the connection portion <NUM> in the first direction a. When the first sliding wheels <NUM> slide in the first guide groove <NUM> or the second guide groove <NUM>, the second sliding wheel <NUM> can abut against the inner side wall of the first guide rail <NUM> or the second guide rail <NUM> and slide on the inner side wall of the first guide rail <NUM> or the second guide rail <NUM>. Therefore, the second sliding wheel <NUM> can convert sliding friction between the mounting bracket <NUM> and the inner side wall of the first guide rail <NUM> or the second guide rail <NUM> into rolling friction, thereby reducing a friction force and making the electrode plate <NUM> travel more smoothly.

Further, an escape groove <NUM> is provided at a position of the connection portion <NUM> corresponding to the second sliding wheel <NUM>, so as to prevent the second sliding wheel <NUM> from abutting against the connection portion <NUM> when the spring is compressed, meaning that the sliding of the second sliding wheel <NUM> on the inner wall of the first guide rail <NUM> or the second guide rail <NUM> is ensured to be smoother.

In some embodiments, the second sliding wheel <NUM> exceeds the first sliding wheel <NUM> in the first direction a. This can ensure that when the movable assembly <NUM> is located in the first guide groove <NUM> or the second guide groove <NUM>, the second sliding wheel <NUM> is first in contact with the inner side wall of the first guide rail <NUM> or the second guide rail <NUM> first, such that a distance between the connection portion <NUM> and the inner sidewall of the first guide rail <NUM> or the second guide rail <NUM> can be adjusted.

In some embodiments, the first guide rail <NUM> and the second guide rail <NUM> are non-metallic guide rails; and/or the first sliding wheels <NUM> and the second sliding wheel <NUM> are non-metal sliding wheels.

It should be noted that, in the prior art, the guide rails in the conveyor <NUM> and the movable assemblies in the guide rails are usually made of metal materials. However, there is a high-temperature environment inside the oven. When the movable assembly moves in the guide rail, metal particles are produced due to friction. Once the metal particles are attached to the electrode plate <NUM>, the performance of the resulting battery produced by using such electrode plate <NUM> will be affected.

In view of this, in this embodiment, the first guide rail <NUM>, the second guide rail <NUM>, the first sliding wheels <NUM>, and the second sliding wheel <NUM> may all be made of non-metallic materials. Specifically, non-metallic materials such as Teflon can be used for making the first guide rail <NUM>, the second guide rail <NUM>, the first sliding wheels <NUM>, and the second sliding wheel <NUM>, or the first guide rail <NUM>, the second guide rail <NUM>, the first sliding wheels <NUM>, and the second sliding wheel <NUM> that are made of metal materials are coated with a layer of non-metal material such as Teflon. This can effectively prevent the first sliding wheels <NUM> and the second sliding wheel <NUM> from producing metal particles when moving in the first guide rail <NUM> or the second guide rail <NUM> and affecting the performance of the electrode plate <NUM>.

It can be understood that, in some other embodiments, the first guide rail <NUM>, the second guide rail <NUM>, the first sliding wheels <NUM>, and the second sliding wheel <NUM> may alternatively be made of other non-metallic materials such as nylon, which is not described herein.

Still refer to <FIG>. In some embodiments, the first guide rail <NUM> and the second guide rail <NUM> each include a top wall <NUM>, a bottom wall <NUM>, a first side wall <NUM>, and two second side walls <NUM>. The top wall <NUM> is disposed opposite the bottom wall <NUM>, the first side wall <NUM> is connected between the top wall <NUM> and the bottom wall <NUM>, and the two second side walls <NUM> are respectively formed by edges of the top wall <NUM> and the bottom wall <NUM> that are away from the first side wall <NUM> extending toward each other and bending toward the first side wall <NUM>.

The top wall <NUM>, the bottom wall <NUM>, the first side wall <NUM>, and the two second side walls <NUM> in the first guide rail <NUM> enclose the first guide groove <NUM>, the top wall <NUM>, the bottom wall <NUM>, the first side wall <NUM>, and the two second side walls <NUM> in the second guide rail <NUM> enclose the second guide groove <NUM>, and the first side wall <NUM> is constructed as a side wall of the corresponding first guide groove <NUM> or the corresponding second guide groove <NUM>. The first opening <NUM> and the second opening <NUM> are formed between the two second side walls <NUM> in the first guide rail <NUM> and between the two second side walls <NUM> in the second guide rail <NUM>, respectively.

The first guide groove <NUM> and the second guide groove <NUM> each formed through enclosure of the top wall <NUM>, the bottom wall <NUM>, the first side wall <NUM>, and the two second side walls <NUM> can better restrict the first sliding wheels <NUM> therein, thereby ensuring the stable movement of the movable assembly <NUM> within the first guide rail <NUM> or a second guide rail <NUM>.

Still refer to <FIG>, further, some of the first sliding wheels <NUM> are movably disposed between the top wall <NUM> and the second side wall <NUM> adjacent to the top wall <NUM>, and the remaining first sliding wheels <NUM> are movably disposed between the bottom wall <NUM> and the second side wall <NUM> adjacent to the bottom wall <NUM>. Specifically, the upper two first sliding wheels <NUM> of the four first sliding wheels <NUM> are restricted between the top wall <NUM> and the second side wall <NUM> adjacent to the top wall <NUM> in the width direction and the height direction of the electrode plate <NUM>. The other two lower first sliding wheels <NUM> are also restricted between the bottom wall <NUM> and the second side wall <NUM> adjacent to the bottom wall <NUM> in the width direction and the height direction of the electrode plate <NUM>.

In this way, the movable assembly <NUM> is more tightly connected to the first guide rail <NUM> and the second guide rail <NUM>, preventing the movable assembly <NUM> from detaching from the first guide rail <NUM> or the second guide rail <NUM>, thereby ensuring stable traveling of the electrode plate <NUM>.

In addition, the conveyor <NUM> further includes a drive assembly (not shown in the figure), where the drive assembly is configured to drive the conveying rod <NUM> to move within the first guide rail <NUM> or the second guide rail <NUM>. Specifically, in this embodiment, a traction rope may be used as the drive assembly. One end of the traction rope is fixedly connected to the conveying rod <NUM>, and the other end is connected to a power source or directly manually pulled, thereby driving the conveying rod <NUM> to move.

In some other embodiments, a motor may also be used as the drive assembly and is disposed on the connection portion <NUM> in driving connection with the first sliding wheel <NUM>. In this way, the first sliding wheels <NUM> rotate under the drive of the motor, thereby driving the conveying rod <NUM> to move. Certainly, other similar alternatives may also be used as the drive assembly, which is not described herein.

When this application is specifically used, the electrode plate <NUM> is first fastened to the conveying rod <NUM>, and the first sliding wheels <NUM> are rolled in the first guide groove <NUM> or the second guide groove <NUM> under the action of an external force, thereby driving the electrode plate <NUM> on the conveying rod <NUM> to move in the oven and implementing drying of the electrode plate <NUM>.

In addition, the second sliding wheel <NUM> abuts against the first side wall <NUM> of the first guide rail <NUM> or the second guide rail <NUM> in the width direction of the electrode plate <NUM>. In the moving process of the electrode plate <NUM>, when the distance between the first guide rail <NUM> and the second guide rail <NUM> in the width direction of the electrode plate <NUM> changes from long to short, the spring is compressed under the pressure of the first guide rail <NUM> and the second guide rail <NUM>, thus driving the second sliding wheel <NUM> to follow the compression of the spring. Therefore, the distance between the connection portion <NUM> and the first side wall <NUM> of the first guide rail <NUM> or the second guide rail <NUM> in the width direction of the electrode plate <NUM> becomes gradually short, thereby avoiding jamming of the conveying rod <NUM> caused by the collision between the connection portion <NUM> and the first side wall <NUM> of the first guide rail <NUM> or the second guide rail <NUM>. This helps make the electrode plate <NUM> travel more smoothly in the oven.

Claim 1:
A conveyor (<NUM>) for transporting an electrode plate (<NUM>), characterized by comprising: an oven; a first guide rail (<NUM>) and a second guide rail (<NUM>), spaced apart from each other inside the oven in a first direction (a), wherein a first opening (<NUM>) and a second opening (<NUM>) are respectively provided on surfaces of the first guide rail (<NUM>) and the second guide rail (<NUM>) that face each other; and a conveying assembly(<NUM>), wherein two ends of the conveying assembly(<NUM>) in the first direction (a) are movably disposed in the first guide rail (<NUM>) and the second guide rail (<NUM>) through the first opening (<NUM>) and the second opening (<NUM>), respectively, and the conveying assembly(<NUM>) is connected to the electrode plate (<NUM>) for transporting the electrode plate (<NUM>) inside the oven; wherein the conveying assembly(<NUM>) comprises a conveying rod(<NUM>) and two movable assemblies (<NUM>), wherein the conveying rod(<NUM>) is connected to the electrode plate (<NUM>), the two movable assemblies (<NUM>) are disposed at two ends of the conveying rod(<NUM>) in the first direction (a), respectively, and the movable assemblies (<NUM>) are movably disposed in the first guide rail (<NUM>) and the second guide rail (<NUM>), respectively.