Graphite felt cutting system for vanadium battery

Abstract

The invention provides a graphite felt cutting system for a vanadium battery. The graphite felt cutting system comprises a cutting tool, a first vacuum conveying belt, a second vacuum conveying belt and a third vacuum conveying belt, and a to-be-cut graphite felt is borne on the conveying face of the first vacuum conveying belt; the cutting tool is arranged on the side, away from the first vacuum conveying belt, of the to-be-cut graphite felt. The second vacuum conveyor belt is arranged on the downstream of the first vacuum conveyor belt, and the conveying face of the second vacuum conveyor belt and the conveying face of the first vacuum conveyor belt are located on the same plane. The third vacuum conveying belt is arranged on the side, away from the second vacuum conveying belt, of the target graphite felt and the graphite felt waste, the width of the conveying face of the third vacuum conveying belt is smaller than that of the conveying face of the second vacuum conveying belt, and part of the conveying faces of the third vacuum conveying belt are opposite to the conveying face of the second vacuum conveying belt. The problems that in the prior art, cutting precision is poor, and production efficiency is low are solved.

Description

Technical Field

[0001] The invention relates to the field of production and manufacturing of liquid flow batteries, and in particular to a graphite felt cutting system for vanadium batteries. Background Art

[0002] All-vanadium liquid flow batteries have broad application prospects in the fields of new energy access and smart grid construction due to their advantages such as independent power capacity design, safe operation, long service life, environmental friendliness, and recyclable electrolyte. Graphite felt is the core component of vanadium battery stacks. The thickness and size of graphite felt inside different models of stacks are different.

[0003] At present, most of the raw materials of graphite felt are rolled materials. When using them, they need to be cut according to the needs. Manual cutting is labor-intensive and dust is easily generated during the cutting process, which affects the health of workers and pollutes the environment. In addition, the dimensional accuracy of manual cutting is poor, and it is easy for the sizes to be different. After cutting, the cutting waste and cutting products need to be sorted manually, which leads to low work efficiency and low production capacity. Using this material to assemble the battery stack will affect the overall performance of the battery stack.

[0004] It can be seen that the prior art has the problems of poor cutting accuracy and low production efficiency of graphite felt. Summary of the invention

[0005] The invention provides a graphite felt cutting system for vanadium batteries, which solves the problems of poor cutting accuracy and low production efficiency in the prior art.

[0006] The present invention provides a graphite felt cutting system for vanadium batteries, comprising a cutting tool, a first vacuum conveyor belt, a second vacuum conveyor belt, and a third vacuum conveyor belt. The graphite felt to be cut is carried on the conveying surface of the first vacuum conveyor belt; the cutting tool is arranged on the side of the graphite felt to be cut away from the first vacuum conveyor belt; the cutting tool can follow the movement of the first vacuum conveyor belt and cut the graphite felt to be cut into target graphite felt and graphite felt waste.

[0007] Along the conveying direction of the graphite felt to be cut, the second vacuum conveyor belt is arranged downstream of the first vacuum conveyor belt, and the conveying surface of the second vacuum conveyor belt is located in the same plane as the conveying surface of the first vacuum conveyor belt, and is used to carry the target graphite felt and graphite felt waste.

[0008] The third vacuum conveyor belt is arranged on the side of the target graphite felt and the graphite felt waste away from the second vacuum conveyor belt. The conveying surface width of the third vacuum conveyor belt is smaller than the conveying surface width of the second vacuum conveyor belt. In addition, part of the conveying surface of the third vacuum conveyor belt is arranged opposite to the conveying surface of the second vacuum conveyor belt to absorb the target graphite felt and separate it from the graphite felt waste.

[0009] The graphite felt cutting system for vanadium batteries of the present invention, through the ingenious design and layout of multiple vacuum conveyor belts (including a first vacuum conveyor belt, a second vacuum conveyor belt and a third vacuum conveyor belt), can not only simultaneously carry out the cutting and conveying of graphite felt, but also can separate the cut target graphite felt from the graphite felt waste, without pausing the production process, thereby improving the production efficiency of graphite felt, and the cutting tool can directly separate the graphite felt to be cut into the target graphite felt and the graphite felt waste (or it can be understood that the shape of the cutting tool matches the target graphite felt), thus avoiding the size error of manual measurement and cutting, thereby improving the cutting accuracy of the graphite felt.

[0010] Optionally, the cutting tool includes an inlay roller, a first edge cutting knife, a second edge cutting knife and a plurality of cutting knives.

[0011] The axis of the inlay roller is perpendicular to the conveying direction of the graphite felt to be cut, and the inlay roller can roll around its axis along the first vacuum conveyor belt, and the linear speed of the inlay roller is the same as the conveying speed of the first vacuum conveyor belt;

[0012] The first edge cutting blade, the second edge cutting blade and at least part of the plurality of cutting blades are enclosed to form at least one closed structure, and the shape and size of the closed structure are adapted to the shape and size of the target graphite felt.

[0013] The embodiment of the present invention integrates the cutting knife on the rolling inlay roller, so that the cutting process is in line contact with the graphite felt to be cut. Compared with the traditional technical solution of cutting with a flat knife plate, the contact area between the cutting tool and the graphite felt is greatly reduced, and the situation in which the graphite felt is stuck in the knife plate and requires external force to demold is greatly avoided, thereby improving the cutting efficiency and cutting success rate of the graphite felt.

[0014] Optionally, the first edge cutting knife and the second edge cutting knife are both arranged around the circumferential side wall of the inlay roller along the circumference of the inlay roller, and the first edge cutting knife and the second edge cutting knife are arranged in parallel and spaced apart along the axial direction of the inlay roller.

[0015] Each of the plurality of cutting knives extends along the axial direction of the inlay roller, and both ends of each cutting knife are respectively connected to the first edge cutting knife and the second edge cutting knife to form a plurality of closed structures.

[0016] The embodiment of the present invention forms a plurality of closed structures matching the shape and size of the target graphite felt through the above-mentioned structure, or it can be understood that the cutting tool of the embodiment of the present invention can cut a plurality of target graphite felts without waste in the middle by circumferentially rolling the inlaid roller for one circle, thereby reducing the graphite felt waste in the cutting process and greatly improving the material utilization rate and graphite felt cutting efficiency.

[0017] Optionally, the blade depths of the first edge cutting knife, the second edge cutting knife, and the plurality of cutting knives are all greater than the thickness of the graphite felt to be cut.

[0018] The embodiment of the present invention can prevent the cutting knife and the cutting knife from squeezing the graphite felt during the cutting process through the above structure, prevent the graphite felt from being deformed, and improve the cutting quality of the graphite felt.

[0019] Optionally, the graphite felt cutting system for vanadium batteries also includes a blanking vacuum conveyor belt and a blanking gripper.

[0020] Along the conveying direction of the graphite felt to be cut, the unloading vacuum conveyor belt is arranged downstream of the second vacuum conveyor belt and spaced apart from the second vacuum conveyor belt, and the conveying surface of the unloading vacuum conveyor belt and the conveying surface of the second vacuum conveyor belt are located in the same plane; the conveying surface of the unloading vacuum conveyor belt and a part of the conveying surface of the third vacuum conveyor belt are arranged opposite to each other to adsorb and convey the target graphite felt.

[0021] The unloading grabbing clamp is arranged opposite to the unloading vacuum conveyor belt to grab the target graphite felt located on the unloading vacuum conveyor belt.

[0022] The embodiment of the present invention can increase the flow speed of the target graphite felt and improve the production efficiency of the graphite felt through the above structure.

[0023] Optionally, the graphite felt cutting system for vanadium batteries also includes a feeding slide; the feeding grab is connected to the feeding slide and can slide along the feeding slide, and one end of the feeding slide is arranged opposite to the conveying surface of the feeding vacuum conveyor belt.

[0024] Optionally, the graphite felt cutting system for vanadium battery further comprises a product collecting bin. Along the conveying direction of the graphite felt to be cut, the product collecting bin is located downstream of the unloading vacuum conveyor belt.

[0025] Optionally, the graphite felt cutting system for vanadium batteries further includes a waste collection bin, the inlet of which is located between the second vacuum conveyor belt and the unloading vacuum conveyor belt to receive the cut graphite felt waste.

[0026] The embodiment of the present invention arranges the waste collection bin in the gap between the second vacuum conveyor belt and the unloading vacuum conveyor belt, and can directly collect the graphite felt waste separated from the target graphite felt without the need to set up other additional grabbing equipment (the graphite felt waste is separated from the target graphite felt under the adsorption and transportation of the third vacuum conveyor belt), thereby improving the working efficiency and automation level of the entire graphite felt cutting system.

[0027] Optionally, a waste roller is provided in the waste collection bin; the waste roller is used to tension and store the cut graphite felt waste.

[0028] Optionally, the graphite felt cutting system for vanadium batteries further includes a first tension roller and a second tension roller.

[0029] Along the conveying direction of the graphite felt to be cut, the first tension roller is arranged upstream of the cutting tool, and the second tension roller is arranged downstream of the cutting tool and located between the cutting tool and the second vacuum conveyor belt. The first tension roller and the second tension roller are used to tension the graphite felt to be cut on the conveying surface of the first vacuum conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the system structure of a graphite felt cutting system for vanadium batteries according to an embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the top plan structure of the first vacuum conveyor belt, the second vacuum conveyor belt and the third vacuum conveyor belt in the graphite felt cutting system for vanadium batteries according to an embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of a cutting tool in a graphite felt cutting system for vanadium batteries according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1: Graphite felt cutting system for vanadium batteries;

[0035] 11: first vacuum conveyor belt; 12: second vacuum conveyor belt; 13: third vacuum conveyor belt; 14: unloading vacuum conveyor belt; 15: cutting tool; 150: inlay roller; 151: first edge cutting knife; 152: second edge cutting knife; 153: cutting knife; 161: unloading gripper; 162: unloading slide rail; 163: product collection bin; 164: waste collection bin; 165: waste roller;

[0036] 171: first tension roller; 172: second tension roller;

[0037] 2: graphite felt to be cut; 20: reel; 21: target graphite felt; 22: graphite felt waste. DETAILED DESCRIPTION

[0038] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0039] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0040] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0042] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] See also Figure 1 The present invention provides a graphite felt cutting system 1 for vanadium batteries, comprising a cutting tool 15, a first vacuum conveyor belt 11, a second vacuum conveyor belt 12, and a third vacuum conveyor belt 13, wherein the graphite felt 2 to be cut is carried on the conveying surface of the first vacuum conveyor belt. The graphite felt 2 to be cut can be understood as a single-layer graphite felt material after the roll material from the supplier is unwound from the reel 20.

[0045] The cutting tool 15 is arranged on the side of the graphite felt 2 to be cut away from the first vacuum conveyor belt 11 (which can be understood as Figure 1 The cutting tool 15 can follow the movement of the first vacuum conveyor 22 and cut the graphite felt 2 to be cut into target graphite felt 21 and graphite felt waste 22.

[0046] Along the conveying direction of the graphite felt 2 to be cut, for example Figure 1 In the direction indicated by the middle arrow, the second vacuum conveyor belt 12 is arranged downstream of the first vacuum conveyor belt 11 , and the conveying surface of the second vacuum conveyor belt 12 is located in the same plane as the conveying surface of the first vacuum conveyor belt 11 , and is used to carry the target graphite felt 21 and the graphite felt waste 22 .

[0047] In one embodiment, the first vacuum conveyor belt 11 and the second vacuum conveyor belt 12 may be arranged close together, and then the conveying surface of the first vacuum conveyor belt 11 and the conveying surface of the second vacuum conveyor belt 12 may be connected together to form a conveying surface, or they may be arranged adjacently and spaced apart, such as Figure 1 As shown, the conveying surface of the first vacuum conveyor belt 11 and the conveying surface of the second vacuum conveyor belt 12 are two independent conveying surfaces.

[0048] It can be understood by those skilled in the art that the target graphite felt 21 is a graphite felt material of a specific size required for production. Before being cut by the cutting tool 15, the graphite felt 2 to be cut is a complete sheet of graphite felt material. Since the second vacuum conveyor belt 12 is located downstream of the first vacuum conveyor belt 11, the graphite felt material conveyed to the second vacuum conveyor belt 12 has been cut by the cutting tool 15. Therefore, the second vacuum conveyor belt 12 carries the divided target graphite felt 21 and graphite felt waste 22.

[0049] like Figure 1 and Figure 2 As shown, the third vacuum conveyor 13 is arranged on the side of the target graphite felt 21 and the graphite felt waste 22 away from the second vacuum conveyor 12 (which can be understood as Figure 1 The upper side of the second vacuum conveyor belt 12 in the perspective), such as Figure 2 As shown, the conveying surface width w2 of the third vacuum conveyor belt 13 is smaller than the conveying surface width w1 of the second vacuum conveyor belt 12, and part of the conveying surface of the third vacuum conveyor belt 13 is arranged opposite to the conveying surface of the second vacuum conveyor belt 12 to adsorb the target graphite felt 21 and separate it from the graphite felt waste 22.

[0050] Among them, part of the conveying surface of the third vacuum conveyor belt 13 is arranged opposite to the conveying surface of the second vacuum conveyor belt 12. It can be understood that the conveying surface of the second vacuum conveyor belt 12 and the conveying surface of the third vacuum conveyor belt 13 are in opposite directions, and along the thickness direction of the graphite felt, the second vacuum conveyor belt 12 and the third vacuum conveyor belt 13 partially overlap. During the conveying process of the second vacuum conveyor belt 12, part of the target graphite felt 21 can be adsorbed on the second vacuum conveyor belt 12, and the rest of the target graphite felt 21 can be adsorbed on the third vacuum conveyor belt 13, so that the target graphite felt 21 is transitionally conveyed to the conveying surface of the third vacuum conveyor belt 13.

[0051] Through the above structure, the graphite felt cutting system 1 for vanadium batteries of the present invention utilizes the ingenious design and layout of multiple vacuum conveyor belts (including the first vacuum conveyor belt 11, the second vacuum conveyor belt 12 and the third vacuum conveyor belt 13), which can not only make the cutting and conveying of graphite felt be carried out simultaneously, but also can separate the cut target graphite felt 21 from the graphite felt waste 22, without pausing the production process, thereby improving the production efficiency of graphite felt, and the cutting tool 15 can directly divide the graphite felt to be cut into the target graphite felt 21 and the graphite felt waste 22 (or it can be understood that the shape of the cutting tool 15 matches the target graphite felt), avoiding the size error of manual measurement and cutting, thereby improving the cutting accuracy of graphite felt.

[0052] The cutting tool 15 can follow the movement of the first vacuum conveyor belt, which can be understood as the cutting tool 15 being able to keep in sync with the first vacuum conveyor belt 11 to cut the graphite felt while the first vacuum conveyor belt 11 is in motion. The cutting tool 15 can be, for example, a rectangular cutting tool or a plate-shaped cutting tool that matches the size and shape of the target graphite felt 21. When cutting, it moves synchronously with the first vacuum conveyor belt 11. After cutting is completed, it stops for a while and waits for the uncut target graphite felt 21 area to be conveyed to the designated position by the first vacuum conveyor belt 11 before performing the next cutting.

[0053] In one implementation, see Figure 3 , and combined with Figure 1 It is understood that, in one embodiment, the cutting tool 15 includes an inlay roller 150 , a first edge cutting tool 151 , a second edge cutting tool 152 , and a plurality of cutting tools 153 .

[0054] The axis of the inlay roller 150 is perpendicular to the conveying direction of the graphite felt 2 to be cut (eg Figure 1 The inlay roller 150 can roll around its axis along the first vacuum conveyor belt 11 , and the linear speed of the inlay roller 150 is the same as the conveying speed of the first vacuum conveyor belt 11 .

[0055] The first edge cutting blade 151 , the second edge cutting blade 152 and at least a portion of the plurality of cutting blades 153 enclose at least one closed structure, and the shape and size of the closed structure are adapted to the shape and size of the target graphite felt 21 .

[0056] The shapes of the first edge cutting knife 151 , the second edge cutting knife 152 and the cutting knife 153 are not limited, as long as they can enclose and form at least one closed structure matching the target graphite felt 21 , they do not depart from the scope of the embodiment of the present invention.

[0057] The embodiment of the present invention integrates the cutting knives (including the first edge cutting knife 151, the second edge cutting knife 152 and multiple cutting knives 153) on the rolling inlay roller 150, so that the cutting process is in line contact with the graphite felt 2 to be cut, and there is no need to set foam for demolding. Compared with the traditional technical solution of cutting with a flat knife plate, the contact area between the cutting tool 15 and the graphite felt is greatly reduced, which greatly avoids the situation where the graphite felt is stuck in the knife plate and requires external force for demolding, and also ensures that the original thickness of the graphite felt is not squeezed by the foam, thereby improving the cutting efficiency and cutting success rate of the graphite felt.

[0058] In one embodiment, the first edge cutting knife 151 and the second edge cutting knife 152 are both arranged around the circumferential side wall of the inlay roller 150 along the circumference of the inlay roller 150 , and the first edge cutting knife 151 and the second edge cutting knife 152 are arranged in parallel and spaced apart along the axial direction of the inlay roller 150 .

[0059] Each cutting knife 153 of the plurality of cutting knives extends along the axial direction of the inlay roller 150 , and both ends of each cutting knife 153 are respectively connected to the first edge cutting knife 151 and the second edge cutting knife 152 to form a plurality of closed structures.

[0060] By adopting the above structure, the embodiment of the present invention constitutes a plurality of closed structures that match the shape and size of the target graphite felt 21, or it can be understood that the cutting tool 15 of the embodiment of the present invention can cut a plurality of target graphite felts 21 without waste in the middle by circumferentially rolling one circle through the inlaid roller 150, thereby reducing the graphite felt waste in the cutting process and greatly improving the material utilization rate and graphite felt cutting efficiency.

[0061] In one embodiment, the plurality of cutting blades 153 may be evenly distributed along the circumference of the inlay roller 150, so that the inlay roller 150 can cut a plurality of target graphite felts 21 of the same size after one rotation in the circumference. In other alternative embodiments, the plurality of cutting blades 153 may be unevenly distributed, so that the inlay roller 150 can cut a plurality of target graphite felts 21 of different sizes after one rotation in the circumference.

[0062] Furthermore, in one embodiment, the blade depths of the first edge cutting knife 151, the second edge cutting knife 152, and the plurality of cutting knives 153 are all greater than the thickness of the graphite felt 2 to be cut. Such a structure can prevent the cutting knife and the cutting knife from squeezing the graphite felt during the cutting process, prevent the deformation of the graphite felt, and improve the cutting quality of the graphite felt.

[0063] It can be understood by those skilled in the art that the embodiment of the present invention does not limit the size of each component in the cutting tool 15, and can be designed according to the actual graphite felt product. Specifically, the spacing between the two edge cutting knives can be set to the length dimension of the target graphite felt 21, and the arc length between the cutting knives 153 can be the width dimension of the target graphite felt 21. In an exemplary embodiment, taking a rectangular block of graphite felt as an example, the length of the graphite felt is 1000mm, the width is 500mm, and the thickness is 3mm. The blade depth of the first edge cutting knife 151, the second edge cutting knife 152, and the plurality of cutting knives 153 is 3.2mm, the spacing between the first edge cutting knife 151 and the second edge cutting knife 152 is 1000mm, the outer diameter of the inlay roller 150 is 477.7mm, and the number of cutting knives 153 is 3, which are evenly distributed along the circumference of the inlay roller 150, and then the inlay roller 150 rolls circumferentially for one circle, and 3 target graphite felts 21 without waste in the middle can be cut.

[0064] In one implementation, see Figure 1 The graphite felt cutting system 1 for vanadium battery further includes a blanking vacuum conveyor belt 14 and a blanking gripper 161 .

[0065] Along the conveying direction of the graphite felt to be cut (such as Figure 1 The unloading vacuum conveyor belt 14 is arranged downstream of the second vacuum conveyor belt 12 and spaced apart from the second vacuum conveyor belt 12, and the conveying surface of the unloading vacuum conveyor belt 14 is located in the same plane as the conveying surface of the second vacuum conveyor belt 12. The conveying surface of the unloading vacuum conveyor belt 14 is arranged opposite to a part of the conveying surface of the third vacuum conveyor belt 13 to adsorb and convey the target graphite felt 21. The unloading grabber 161 is arranged opposite to the unloading vacuum conveyor belt 14 to grab the target graphite felt 21 located on the unloading vacuum conveyor belt 14. Among them, the width of the unloading vacuum conveyor belt 14 can be the same as the width of the second vacuum conveyor belt 12 (such as Figure 2 The form of the material-cutting gripper 161 is not limited, and it can be a multi-finger gripper, or a vacuum adsorption disk, etc. As long as it is a structure that can grab the target graphite felt 21, it does not deviate from the scope of the embodiment of the present invention. The above structure can increase the circulation speed of the target graphite felt 21 and improve the production efficiency of the graphite felt.

[0066] Further, in one embodiment, if Figure 1 As shown, the graphite felt cutting system 1 for vanadium batteries also includes a feeding slide 162, a feeding grab 161 is connected to the feeding slide 162 and can slide along the feeding slide 162, one end of the feeding slide 162 is arranged opposite to the conveying surface of the feeding vacuum conveyor 14, or it can be understood that one end of the feeding slide 162 extends above the conveying surface of the feeding vacuum conveyor 14.

[0067] In one embodiment, if Figure 1 As shown, the vanadium battery graphite felt cutting system 1 also includes a product collection bin 163. Figure 1 The product collection bin 163 is located downstream of the unloading vacuum conveyor belt 14. In one embodiment, the graphite felt cutting system 1 for vanadium batteries further includes a waste collection bin 164, the inlet of which is located between the second vacuum conveyor belt 12 and the unloading vacuum conveyor belt 14 to receive the cut graphite felt waste 22. Alternatively, it can be understood that the graphite felt waste 22 falls into the waste collection bin 164 from the gap between the second vacuum conveyor belt 12 and the unloading vacuum conveyor belt 14.

[0068] It can be seen that the embodiment of the present invention arranges the waste collection bin 164 in the gap between the second vacuum conveyor belt 12 and the unloading vacuum conveyor belt 14, and can directly collect the graphite felt waste 22 separated from the target graphite felt 21 without the need to set up other additional grabbing equipment (the graphite felt waste 22 is separated from the target graphite felt 21 under the adsorption and transportation of the third vacuum conveyor belt 13), thereby improving the working efficiency and automation level of the entire graphite felt cutting system 1 for vanadium batteries.

[0069] Further, in one embodiment, if Figure 1 As shown, a waste roller 165 is provided in the waste collection bin 164. The waste roller 165 is used to tension and receive the cut graphite felt waste 22. In one embodiment, the graphite felt cutting system 1 for vanadium battery further includes a first tension roller 171 and a second tension roller 172.

[0070] Along the conveying direction of the graphite felt 2 to be cut (such as Figure 1 The first tension roller 171 is arranged upstream of the cutting tool 15, and the second tension roller 172 is arranged downstream of the cutting tool 15 and between the cutting tool 15 and the second vacuum conveyor belt 12. The first tension roller 171 and the second tension roller 172 are used to tension the graphite felt 2 to be cut on the conveying surface of the first vacuum conveyor belt 11.

[0071] Furthermore, in one embodiment, the first tension roller 171 is a deviation correction roller, which can sense and adjust in real time the relative position of the edge of the graphite felt 2 to be cut and the edge of the first vacuum conveyor belt 11 when the graphite felt 2 to be cut is unwound onto the first vacuum conveyor belt 11, so that the graphite felt 2 to be cut is always arranged parallel to the first vacuum conveyor belt 11.

[0072] The following is an example of the cutting process of the graphite felt cutting system 1 for vanadium batteries:

[0073] The reel 20 is unwound to release the strip-shaped graphite felt 2 to be cut, and the graphite felt 2 to be cut is placed on the first vacuum conveyor belt 11 through the first tension roller 171. The graphite felt 2 to be cut is tightly attached to the conveying surface of the first vacuum conveyor belt 11. The cutting tool 15 squeezes the graphite felt 2 to be cut to complete the cutting. The graphite felt 2 to be cut is cut and divided into target graphite felt 21 and graphite felt waste 22. The target graphite felt 21 and the graphite felt waste 22 are conveyed to the second vacuum conveyor belt 12 through the second tension roller 172. The target graphite felt 21 is adsorbed by the third vacuum conveyor belt 13 and conveyed to the unloading vacuum conveyor belt 14. At the same time, the graphite felt waste 22 falls into the waste collection bin 164 through the gap between the second vacuum conveyor belt 12 and the unloading vacuum conveyor belt 14 and is collected by the waste roller 165. Then, the target graphite felt 21 on the unloading vacuum conveyor belt 14 is grabbed by the unloading gripper 161 and conveyed to the product collecting bin 163 along the unloading slide rail 162 .

[0074] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A graphite felt cutting system for vanadium batteries, characterized in that: It comprises a cutting tool, a first vacuum conveyor belt, a second vacuum conveyor belt, and a third vacuum conveyor belt, wherein the graphite felt to be cut is carried on the conveying surface of the first vacuum conveyor belt; the cutting tool is arranged on the side of the graphite felt to be cut away from the first vacuum conveyor belt; the cutting tool can follow the movement of the first vacuum conveyor belt and cut and divide the graphite felt to be cut into target graphite felt and graphite felt waste; The second vacuum conveyor belt is arranged downstream of the first vacuum conveyor belt along the conveying direction of the graphite felt to be cut, and the conveying surface of the second vacuum conveyor belt is located in the same plane as the conveying surface of the first vacuum conveyor belt, and is used to carry the target graphite felt and the graphite felt waste; The third vacuum conveyor belt is arranged on the side of the target graphite felt and the graphite felt waste away from the second vacuum conveyor belt. The conveying surface width of the third vacuum conveyor belt is smaller than the conveying surface width of the second vacuum conveyor belt. In addition, part of the conveying surface of the third vacuum conveyor belt is arranged opposite to the conveying surface of the second vacuum conveyor belt to absorb the target graphite felt and separate it from the graphite felt waste.

2. The graphite felt cutting system for vanadium batteries according to claim 1, characterized in that: The cutting tool comprises an inlay roller, a first edge cutting knife, a second edge cutting knife and a plurality of cutting knives; The axis of the inlay roller is perpendicular to the conveying direction of the graphite felt to be cut, the inlay roller can roll around its axis along the first vacuum conveyor belt, and the linear speed of the inlay roller is the same as the conveying speed of the first vacuum conveyor belt; The first edge cutting blade, the second edge cutting blade, and at least part of the plurality of cutting blades enclose at least one closed structure, and the shape and size of the closed structure are adapted to the shape and size of the target graphite felt.

3. The graphite felt cutting system for vanadium batteries according to claim 2, characterized in that: The first edge cutting knife and the second edge cutting knife are both arranged around the circumferential side wall of the inlay roller along the circumference of the inlay roller, and the first edge cutting knife and the second edge cutting knife are arranged in parallel and spaced apart along the axial direction of the inlay roller; Each of the plurality of cutting knives extends along the axial direction of the inlay roller, and both ends of each cutting knife are respectively connected to the first edge cutting knife and the second edge cutting knife to form a plurality of the closed structures.

4. The graphite felt cutting system for vanadium batteries according to claim 2, characterized in that: The blade depths of the first edge cutting knife, the second edge cutting knife and the plurality of cutting knives are all greater than the thickness of the graphite felt to be cut.

5. The graphite felt cutting system for vanadium batteries according to claim 1, characterized in that: It also includes a vacuum conveyor belt for unloading and a grabber for unloading; Along the conveying direction of the graphite felt to be cut, the unloading vacuum conveyor belt is arranged downstream of the second vacuum conveyor belt and spaced apart from the second vacuum conveyor belt, and the conveying surface of the unloading vacuum conveyor belt and the conveying surface of the second vacuum conveyor belt are located in the same plane; the conveying surface of the unloading vacuum conveyor belt is arranged opposite to a part of the conveying surface of the third vacuum conveyor belt to absorb and convey the target graphite felt; The unloading grabbing clamp is arranged opposite to the unloading vacuum conveyor belt to grab the target graphite felt located on the unloading vacuum conveyor belt.

6. The graphite felt cutting system for vanadium batteries according to claim 5, characterized in that: It also includes a material unloading slide rail; the material unloading gripper is connected to the material unloading slide rail and can slide along the material unloading slide rail, and one end of the material unloading slide rail is arranged opposite to the conveying surface of the material unloading vacuum conveyor belt.

7. The graphite felt cutting system for vanadium batteries according to claim 6, characterized in that: It also includes a product collecting bin; along the conveying direction of the graphite felt to be cut, the product collecting bin is located downstream of the unloading vacuum conveyor belt.

8. The graphite felt cutting system for vanadium batteries according to claim 5, characterized in that: It also includes a waste collection bin, the inlet of which is located between the second vacuum conveyor belt and the unloading vacuum conveyor belt to receive the cut graphite felt waste.

9. The graphite felt cutting system for vanadium batteries according to claim 8, characterized in that: A waste roller is arranged in the waste collection bin; the waste roller is used for tensioning and storing the cut graphite felt waste.

10. The graphite felt cutting system for vanadium batteries according to claim 1, characterized in that: Also includes a first tension roller and a second tension roller; Along the conveying direction of the graphite felt to be cut, the first tension roller is arranged upstream of the cutting tool, and the second tension roller is arranged downstream of the cutting tool and located between the cutting tool and the second vacuum conveyor belt. The first tension roller and the second tension roller are used to tension the graphite felt to be cut on the conveying surface of the first vacuum conveyor belt.

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