Adhesive tape cutting equipment

Abstract

The utility model provides adhesive tape cutting equipment. The adhesive tape cutting equipment comprises a cutting assembly, a driving device and a blocking piece. The cutting assembly comprises a tool apron, a cutting knife, a protection piece and an elastic piece. The cutting knife comprises a knife body and a knife edge. The cutter body is connected to the cutter holder. The protection piece is slidably connected to the tool apron. An elastic piece is arranged between the protection piece and the tool apron. At least one side of the blade is provided with a protection piece. The blade is lower than the protection piece. The tool apron is connected with a driving device. The blocking piece and the protection piece are correspondingly arranged. The blocking pieces and the protection pieces are arranged at intervals. A belt penetrating channel is formed between the blocking piece and the protection piece. The driving device is used for driving the cutting assembly to move. The protection piece gets close to or away from the blocking piece. According to the adhesive tape cutting equipment, the automation degree of adhesive tape section machining and manufacturing is improved, the manual participation degree is reduced, and then the cutting work efficiency of the adhesive tape sections is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of adhesive tape processing equipment, and in particular to an adhesive tape cutting equipment. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery device technology is an important factor related to their development.

[0003] The battery device includes a battery cell. The battery cell includes an electrode assembly. In the production process of the battery cell, it is necessary to use a tape segment to bond two or more electrode assemblies to form an integral structure. In the production process of the tape segment, after releasing a predetermined length of tape segment from the tape roll, the tape segment needs to be cut manually before use, and the cutting work efficiency is low. Utility Model Content

[0004] In view of the above problems, the present application provides a tape cutting device, which is conducive to improving the degree of automation in the processing and manufacturing of tape segments, reducing the degree of manual participation, and thus effectively improving the efficiency of cutting tape segments.

[0005] The present application provides a tape cutting device, which includes a cutting component, a driving device and a blocking member. The cutting component includes a knife seat, a cutting knife, a protective member and an elastic member. The cutting knife includes a blade body and a blade. The blade body is connected to the knife seat. The protective member is slidably connected to the knife seat. An elastic member is arranged between the protective member and the knife seat. A protective member is arranged on at least one side of the blade. The blade is lower than the protective member. The knife seat is connected to the driving device. The blocking member is arranged corresponding to the protective member. The blocking member and the protective member are arranged at intervals. A tape threading channel is formed between the blocking member and the protective member. The driving device is used to drive the cutting component to move. The protective member approaches or moves away from the blocking member.

[0006] The tape cutting device of the embodiment of the present application achieves the cutting of the tape to obtain the tape segment through the coordinated action of the cutting assembly, the driving device and the blocking member, which is conducive to improving the degree of automation in the processing and manufacturing of the tape segment, reducing the degree of manual participation, and thus effectively improving the efficiency of cutting the tape segment. During the processing and manufacturing of the tape segment, manual threading operations are required to insert the tape into the threading channel. Alternatively, during the later maintenance of the cutting assembly, manual cleaning of the tape remaining on the cutting assembly or the colloid peeled off the tape is required. The cutting assembly includes a protective member. The blade of the cutting knife is lower than the protective member, so that the protective member can effectively shield the blade, which is conducive to reducing the possibility of contact between the hands of personnel and the blade, and improving the safety of the cutting assembly.

[0007] In some feasible embodiments, the driving device includes a telescopic rod, the knife holder is connected to the telescopic rod, the telescopic rod telescopes to drive the cutting assembly to move, and along the axial direction of the telescopic rod, the blocking member and the protective member are correspondingly arranged, and the sliding direction of the protective member relative to the knife holder is the same as the axial direction of the telescopic rod.

[0008] When the drive device is in working state, the telescopic rod can be extended or retracted to drive the cutting component to switch between the initial position and the cutting position. The telescopic rod has good linear motion accuracy, which is conducive to maintaining the precise movement direction of the cutting component to ensure that the protective member can accurately contact the blocking member and ensure that the protective member can slide smoothly relative to the knife seat without getting stuck.

[0009] In some achievable embodiments, the axial direction of the telescopic rod is the same as the vertical direction, the cutting assembly is located above the telescopic rod, and the blocking member is located above the protective member.

[0010] The driving device can drive the cutting assembly to move up and down in the vertical direction through the telescopic rod. The cutting assembly can perform a cutting action on the tape from below the tape. In the process of the cutting assembly moving upward to prepare for cutting the tape, when other objects (such as hands) accidentally appear at the guard that is not in contact with the blocking member to block the guard, the driving device can cut off the power. At this time, the telescopic rod can be retracted under the action of the cutting assembly's own gravity to avoid the object at the guard, effectively reducing the possibility that the driving device continues to drive the cutting assembly, causing the blade to be higher than the guard and causing cuts to the object.

[0011] In some achievable embodiments, the blade is lower than a top surface of the guard facing the blocking member, the top surface is a plane, and the guard is arranged on one side of the blade in a horizontal direction, with a gap between the blade and the guard.

[0012] After the driving device drives the cutting assembly to move a predetermined distance, the top surface of the protective member can contact the blocking member, so that the blocking member can block the movement of the protective member. The top surface of the protective member is flat, which is conducive to ensuring a large contact area between the protective member and the blocking member, so that the protective member is subjected to balanced force, and is also conducive to reducing the component force generated between the protective member and the blocking member in the horizontal direction, and reducing the possibility of the protective member and the blocking member being dislocated after contact. There is a gap between the blade and the protective member, so that when the blade and the protective member move relative to each other, friction is not likely to occur between the two, reducing the frictional resistance between the two, and also reducing the possibility of the blade scratching the protective member.

[0013] In some feasible embodiments, the blocking member is a blocking plate, which includes a horizontal plate and a vertical plate. The two vertical plates are both arranged on the side of the horizontal plate facing the top surface. The distance between the vertical plate and the top surface is smaller than the distance between the horizontal plate and the top surface. The recess formed by the horizontal plate and the two vertical plates forms at least a portion of the belt passing channel.

[0014] After the driving device drives the cutting assembly to move a predetermined distance, the protective member contacts the two vertical plates of the blocking member, so that the blocking member can block the movement of the protective member. Two force points are formed between the two vertical plates of the blocking member and the protective member, thereby ensuring that the force of the protective member is balanced and the protective member and the blocking member are in a stable contact state. There is a gap between the protective member and the horizontal plate, so that the protective member and the horizontal plate will not clamp the tape passing through the tape passage.

[0015] In some feasible embodiments, the protective member includes a connected protective plate and a guide column, there is a distance between the protective plate and the knife seat, the blade is lower than the protective plate, the knife seat includes a guide hole, the guide column and the guide hole are slidably matched, the elastic member is arranged in the guide hole, and along the axial direction of the guide hole, the blocking member and the protective plate are correspondingly arranged.

[0016] The guide post of the protective member and the guide hole of the knife seat can play a positioning role with each other. When assembling the elastic member, the protective member and the knife seat, the elastic member can be first placed in the guide hole of the knife seat, and then the guide post of the protective member can be aligned and inserted into the guide hole, so that the elastic member and the protective member can be assembled with the knife seat quickly and accurately. The way in which the elastic member is arranged in the guide hole makes it difficult for the elastic member to fall out of the knife seat.

[0017] In some feasible embodiments, the cutting assembly also includes a limiting guide sleeve, at least part of which is located in the guide hole, the guide column includes a column body and a limiting cap, the protective plate is connected to the column body, the limiting guide sleeve is sleeved on the column body, the diameter of the center hole of the limiting guide sleeve is smaller than the diameter of the limiting cap, and an elastic member is arranged between the limiting cap and the knife seat.

[0018] The limiting guide sleeve can limit the protective member, reducing the possibility that the guide post of the protective member will withdraw from the guide hole and cause the protective member to separate from the knife seat. After the protective member, the knife seat and the limiting guide sleeve are assembled, the limiting cap of the guide post is located in the guide hole and can abut against the limiting guide sleeve, so that the guide post will not withdraw from the limiting guide sleeve and the guide hole.

[0019] In some practicable embodiments, the cutting assembly further includes a detection sensor and an inductive trigger member, wherein the detection sensor is connected to the knife holder, and the inductive trigger member is connected to the protective plate, and when the protective plate moves relative to the knife holder, the inductive trigger member is used to trigger the detection sensor.

[0020] When the driving device drives the cutting component to move from the initial station to the cutting station, the cutting component needs to move a predetermined distance before the protective member can contact the blocking member. If the tape cutting device detects that the actual distance of the cutting component is less than the predetermined distance, and other objects (such as hands) accidentally appear at the protective member and press the protective member to slide relative to the knife seat, the protective plate can drive the inductive trigger member to move synchronously, so that the inductive trigger member moves relative to the detection sensor. The inductive trigger member can trigger the detection sensor, so that the tape cutting device cuts off the power supply of the driving device, so that the driving device stops driving the cutting component to continue to move, effectively reducing the possibility of the cutting knife accidentally damaging objects appearing at the protective member.

[0021] In some practicable embodiments, the detection sensor is a proximity switch or a photoelectric sensor. The detection sensor has high detection precision and high sensitivity, which is beneficial to improving the detection accuracy of the detection sensor and also beneficial to shortening the detection reaction time.

[0022] In some achievable embodiments, the number of guide pillars is more than two, a protective plate is connected to more than two guide pillars, and the number of guide holes is set in a one-to-one correspondence with the number of guide pillars.

[0023] The way in which a protective plate is slidably connected to the tool holder through more than two guide pillars is conducive to improving the force balance of the protective plate, ensuring that the protective part can slide smoothly relative to the tool holder and is not prone to jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0025] Figure 1 is a structural schematic diagram of a vehicle provided by an embodiment of the present application;

[0026] Figure 2 is a schematic structural diagram of a battery device provided in one embodiment of the present application;

[0027] Figure 3 is a structural schematic diagram of a battery module provided in an embodiment of the application;

[0028] Figure 4 is a schematic diagram of the exploded structure of a battery cell provided in one embodiment of the present application;

[0029] Figure 5 It is a partial structural schematic diagram of a tape cutting device provided in one embodiment of the present application;

[0030] Figure 6It is a partial structural schematic diagram of a tape cutting device provided in one embodiment of the present application;

[0031] Figure 7 It is a schematic diagram of a partial exploded structure of a tape cutting device provided in one embodiment of the present application;

[0032] Figure 8 It is a structural schematic diagram of a tape cutting device at an initial working position to cut a tape provided by an embodiment of the present application;

[0033] Fig. 9 It is a structural schematic diagram of a tape cutting device provided in an embodiment of the present application at a cutting station for cutting tape;

[0034] Fig.10 It is a partial structural schematic diagram of a tape cutting device provided in one embodiment of the present application;

[0035] Fig.11 It is a partial cross-sectional structural schematic diagram of a tape cutting device provided in one embodiment of the present application;

[0036] Fig.12 It is a partial structural schematic diagram of a tape cutting device provided in one embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Vehicle; 10. Battery device; 10a. Box; 10b. First box portion; 10c. Second box portion;

[0039] 11. Controller; 12. Motor;

[0040] 20. Battery module;

[0041] 30. Battery cells;

[0042] 40. end cap; 41. electrode terminal;

[0043] 50. Shell;

[0044] 60. Electrode assembly;

[0045] 70. Tape cutting equipment;

[0046] 80. Cutting components;

[0047] 81, knife seat; 811, guide hole;

[0048] 82, cutting knife; 821, blade; 822, blade;

[0049] 83, protective member; 83a, top surface; 831, protective plate; 832, guide column; 832a, column; 832b, limit cap;

[0050] 84. Elastic parts;

[0051] 90. driving device; 91. telescopic rod;

[0052] 100, blocking member; 101, horizontal plate; 102, vertical plate;

[0053] 110, limit guide sleeve;

[0054] 120. Detection sensor;

[0055] 130. Induction trigger;

[0056] 200, tape segment;

[0057] 300, tape;

[0058] Z, vertical direction. DETAILED DESCRIPTION

[0059] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0060] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0061] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0062] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0063] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0064] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0065] At present, from the perspective of market development, the application of battery devices is becoming more and more extensive. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of battery devices, the market demand is also constantly expanding.

[0066] In the present application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell may be flat, rectangular or in other shapes, etc., and the embodiments of the present application do not limit this.

[0067] The battery device mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. The battery device mentioned in the present application may be a battery pack. For example, the battery device mentioned in the present application may include a battery module. The battery device generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0068] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator. A battery cell mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet.

[0069] The electrical devices described in the embodiments of the present application may be vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools, etc. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecrafts, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0070] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the battery devices and electrical devices described above, but can also be applied to all battery devices including a box and electrical devices using the battery devices. However, for the sake of simplicity, the following embodiments are described using electric vehicles as examples.

[0071] Figure 1 The structure of the vehicle 1 is schematically shown. Figure 1 As shown, vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 10 is arranged inside the vehicle 1. The battery device 10 can be arranged at the bottom, head or tail of the vehicle 1. The battery device 10 can be used to power the vehicle 1. For example, the battery device 10 can be used as an operating power source for the vehicle 1. The vehicle 1 can also include a controller 11 and a motor 12. The controller 11 is used to control the battery device 10 to power the motor 12. For example, it is used for the working power demand of the vehicle 1 during startup, navigation and driving.

[0072] In some embodiments of the present application, the battery device 10 can not only serve as an operating power source for the vehicle 1 , but also serve as a driving power source for the vehicle 1 , thereby replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0073] In order to meet different power requirements, the battery device 10 may include multiple battery cells. A battery cell refers to the smallest unit that constitutes a battery module or a battery pack. Multiple battery cells can be connected in series and / or in parallel via electrode terminals for use in various applications. The battery device 10 mentioned in the present application includes a battery module or a battery pack. Among them, multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection refers to a mixture of series and parallel connection. In the embodiments of the present application, multiple battery cells can directly form a battery pack, or they can first form a battery module 20, and the battery module 20 can then form a battery pack.

[0074] Figure 2 The structure of the battery device 10 is schematically shown. Figure 2 As shown, the battery device 10 includes a box body 10a and a battery cell (not shown). The battery cell is accommodated in the box body 10a.

[0075] The box 10a can be a simple three-dimensional structure such as a single cuboid, cylinder or sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as cuboids, cylinders or spheres, which is not limited in the present embodiment. The box 10a can be made of alloy materials such as aluminum alloy, iron alloy, polymer materials such as polycarbonate, polyisocyanurate foam plastic, or composite materials such as glass fiber and epoxy resin, which is not limited in the present embodiment.

[0076] The box 10a is used to accommodate battery cells, and the box 10a can be a variety of structures. In some embodiments, the box 10a may include a first box portion 10b and a second box portion 10c. The first box portion 10b and the second box portion 10c cover each other. The first box portion 10b and the second box portion 10c jointly define a storage space for accommodating battery cells. The second box portion 10c may be a hollow structure with one end open. In some embodiments, the first box portion 10b is a plate-like structure. The first box portion 10b covers the open side of the second box portion 10c to form a box 10a with a storage space. In some embodiments, the first box portion 10b and the second box portion 10c may also be hollow structures with one side open. The open side of the first box portion 10b covers the open side of the second box portion 10c to form a box 10a with a storage space. Of course, the first box portion 10b and the second box portion 10c may be in a variety of shapes, such as a cylinder, a cuboid, and the like.

[0077] In order to improve the sealing performance after the first box body 10b and the second box body 10c are connected, a sealing member, such as a sealant, a sealing ring, etc., may also be provided between the first box body 10b and the second box body 10c.

[0078] In some embodiments, the first box body portion 10b covers the top of the second box body portion 10c. The first box body portion 10b can also be called an upper box cover, and the second box body portion 10c can also be called a lower box.

[0079] In the battery device 10, there can be one or more battery cells. When there are multiple battery cells, the multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells is accommodated in the box 10a. Of course, multiple battery cells can also be connected in series, in parallel, or in mixed connection to form a battery module 20. Multiple battery modules 20 are then connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the box 10a.

[0080] In some embodiments, Figure 3 The structure of the battery module 20 is schematically shown. Figure 3 As shown, there may be a plurality of battery cells 30. The plurality of battery cells 30 are first connected in series, in parallel or in series to form a battery module 20. The plurality of battery modules 20 are then connected in series, in parallel or in series to form a whole and are contained in the box 10a.

[0081] The multiple battery cells 30 in the battery module 20 can be electrically connected through a busbar component to achieve parallel connection, series connection, or mixed connection of the multiple battery cells 30 in the battery module 20 .

[0082] In the embodiment of the present application, the battery cell 30 may include a lithium-ion battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, etc., which is not limited in the embodiment of the present application. The battery cell 30 may be a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiment of the present application. However, for the sake of simplicity, the following embodiment is described by taking a square-shaped battery cell 30 as an example.

[0083] Figure 4 The exploded structure of the battery cell 30 is schematically shown. The battery cell 30 refers to the smallest unit constituting the battery. Figure 4 As shown, the battery cell 30 includes an end cap 40 , a housing 50 and an electrode assembly 60 .

[0084] The end cap 40 refers to a component that covers the opening of the shell 50 to isolate the internal environment of the battery cell 30 from the external environment. Exemplarily, the shape of the end cap 40 can be adapted to the shape of the shell 50 to match the shell 50. Exemplarily, the end cap 40 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 40 is not easily deformed when squeezed and collided, so that the battery cell 30 can have a higher structural strength and the safety performance can also be improved. Functional components such as electrode terminals 41 can be provided on the end cap 40. The electrode terminal 41 can be used to be electrically connected to the electrode assembly 60 for outputting or inputting electrical energy of the battery cell 30.

[0085] In some embodiments, the end cap 40 may also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 30 reaches a threshold value. The material of the end cap 40 may also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not particularly limited in the embodiments of the present application. In some embodiments, an insulating component may also be provided on the inner side of the end cap 40, and the insulating component may be used to isolate the electrical connection components in the housing 50 from the end cap 40 to reduce the risk of short circuit. Exemplarily, the insulating component may be plastic, rubber, etc.

[0086] The shell 50 is a component used to cooperate with the end cap 40 to form the internal environment of the battery cell 30. Among them, the internal environment formed can be used to accommodate the electrode assembly 60, the electrolyte (not shown in the figure) and other components. The shell 50 and the end cap 40 can be independent components. An opening can be set on the shell 50, and the internal environment of the battery cell 30 is formed by covering the opening with the end cap 40 at the opening. Without limitation, the end cap 40 and the shell 50 can also be integrated. Specifically, the end cap 40 and the shell 50 can form a common connection surface before other components are put into the shell. When it is necessary to encapsulate the interior of the shell 50, the end cap 40 is covered with the shell 50. The shell 50 can be of various shapes and sizes, such as a rectangular parallelepiped, a hexagonal prism, etc. Specifically, the shape of the shell 50 can be determined according to the specific shape and size of the electrode assembly 60. The material of the shell 50 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0087] The electrode assembly 60 is a component in the battery cell 30 where electrochemical reactions occur. More than two electrode assemblies 60 may be included in the housing 50. Each electrode assembly 60 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet with active materials constitute the main body of the electrode assembly. The parts of the positive electrode sheet and the negative electrode sheet without active materials each constitute a pole ear (not shown in the figure). The positive pole ear and the negative pole ear may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery, the positive electrode active material and the negative electrode active material react with the electrolyte, and the pole ears connect the electrode terminals to form a current loop.

[0088] In some possible implementations, see Figure 4As shown, a battery cell 30 includes more than two electrode assemblies 60. The two or more electrode assemblies 60 need to be bonded together using a tape segment 200 to form an integral structure, and then the integral structure formed by the two or more electrode assemblies 60 is installed in the housing 50. Exemplarily, the two or more electrode assemblies 60 are stacked. The tape segment 200 can be wrapped and bundled around the outer circumference of the two or more electrode assemblies 60, so that the two or more electrode assemblies 60 form an integral structure.

[0089] Figure 5 The partial structure of the tape cutting device 70 is schematically shown. Figure 6 The partial structure of the tape cutting device 70 is schematically shown. Figure 7 The partially exploded structure of the tape cutting device 70 is schematically shown.

[0090] See also Figure 5 , Figure 6 and Figure 7 As shown, the embodiment of the present application provides a tape cutting device 70. The tape cutting device 70 is used to cut the tape to obtain a tape segment 200. The tape cutting device 70 includes a cutting assembly 80, a driving device 90 and a blocking member 100.

[0091] The cutting assembly 80 includes a knife seat 81, a cutting knife 82, a protective member 83 and an elastic member 84. The cutting knife 82 includes a blade 821 and a blade 822. The blade 821 of the cutting knife 82 is connected to the knife seat 81. The protective member 83 is slidably connected to the knife seat 81. An elastic member 84 is arranged between the protective member 83 and the knife seat 81. The protective member 83 is arranged on at least one side of the blade 822. The blade 822 of the cutting knife 82 is lower than the protective member 83. The knife seat 81 of the cutting assembly 80 is connected to the driving device 90. The blocking member 100 is arranged corresponding to the protective member 83. The blocking member 100 is located on the moving path of the protective member 83. The blocking member 100 and the protective member 83 are arranged at intervals. A belt threading channel is formed between the blocking member 100 and the protective member 83. The driving device 90 is used to drive the cutting assembly 80 to move. The protective member 83 approaches or moves away from the blocking member 100.

[0092] Figure 8 The structure of the tape 300 to be cut by the tape cutting device 70 is schematically shown at the initial working position. Fig. 9 The structure of the tape cutting device 70 cutting the tape 300 at the cutting station is schematically shown. Figure 8 and Fig. 9As shown, the adhesive tape 300 released from the adhesive tape roll can pass through the tape threading channel between the blocking member 100 and the protective member 83. Then the driving device 90 is started, and the driving device 90 can drive the cutting assembly 80 to move so that the cutting assembly 80 switches from the initial station to the cutting station. Under the driving action of the driving device 90, the cutting assembly 80 as a whole approaches the blocking member 100, and the protective member 83 approaches the blocking member 100. After the protective member 83 in the cutting assembly 80 contacts the blocking member 100, the protective member 83 is blocked by the blocking member 100 and stops moving, while the knife seat 81 and the cutting knife 82 continue to move, so that the protective member 83 slides relative to the knife seat 81. The protective member 83 and the knife seat 81 jointly apply an external force to the elastic member 84 so that the elastic member 84 accumulates elastic potential energy. The guard 83 and the cutting knife 82 move relative to each other, so that the blade 822 of the cutting knife 82 switches from a state below the guard 83 to a state above the guard 83 , and the blade 822 above the guard 83 can cut the tape 300 to obtain the tape segment 200 .

[0093] After the cutting knife 82 completes cutting, the driving device 90 can drive the cutting assembly 80 to move so that the knife holder 81 and the cutting knife 82 are away from the blocking member 100. The cutting assembly 80 switches from the cutting station to the initial station. The elastic member 84 releases elastic potential energy, so that under the action of the elastic member 84, the protective member 83 slides relative to the knife holder 81, and the protective member 83 and the blocking member 100 remain in contact. After the driving device 90 drives the knife holder 81 and the cutting knife 82 to move away from the blocking member 100 a predetermined distance, the elastic member 84 returns to the initial state, and the protective member 83 and the blocking member 100 are disengaged from the contact state, and the two are separated. After the driving device 90 drives the cutting assembly 80 as a whole to continue to move away from the blocking member 100 a predetermined distance, the driving device 90 stops working, and the cutting assembly 80 returns to the initial state, waiting to perform the next cutting action.

[0094] The tape cutting device 70 of the embodiment of the present application cuts the tape 300 to obtain the tape segment 200 through the coordinated action of the cutting assembly 80, the driving device 90 and the blocking member 100, which is conducive to improving the degree of automation in the processing and manufacturing of the tape segment 200, reducing the degree of manual participation, and thus effectively improving the efficiency of cutting the tape segment 200. During the processing and manufacturing of the tape segment 200, manual threading operation is required to insert the tape 300 into the threading channel. Alternatively, during the later maintenance of the cutting assembly 80, manual cleaning of the tape remaining on the cutting assembly 80 or the colloid peeled from the tape 300 is required. The cutting assembly 80 includes a protective member 83. The blade 822 of the cutting knife 82 is lower than the protective member 83, so that the protective member 83 can effectively shield the blade 822, which is conducive to reducing the possibility of contact between the hand of the person and the blade 822, and improving the safety of the cutting assembly 80. In addition, during the process of the cutting assembly 80 cutting the adhesive tape 300, before the protective member 83 contacts the blocking member 100, the blade 822 of the cutting knife 82 is always lower than the protective member 83. When the blade 822 of the cutting knife 82 is at a relatively close distance to the adhesive tape 300, the protective member 83 contacts the blocking member 100, and then the blade 822 gradually switches from being lower than the protective member 83 to being higher than the protective member 83, so that the blade 822 higher than the protective member 83 can cut the adhesive tape 300. Therefore, the cutting assembly 80 also has good safety during the process of cutting the adhesive tape 300.

[0095] In some achievable ways, when the distance between the blade 822 of the cutting knife 82 and the adhesive tape 300 is 3 mm to 5 mm, the guard 83 contacts the blocking member 100. For example, when the distance between the blade 822 of the cutting knife 82 and the adhesive tape 300 is 3 mm, 4 mm or 5 mm, the guard 83 contacts the blocking member 100. In some examples, when the cutting assembly 80 is in the initial position, the distance between the blade 822 of the cutting knife 82 and the guard 83 is 2 mm to 4 mm.

[0096] In some practicable ways, the blade body 821 of the cutting blade 82 is detachably connected to the blade holder 81. In some examples, the blade body 821 is detachably connected to the blade holder 81 using fasteners such as screws.

[0097] In some possible implementations, see Fig. 9 As shown, the driving device 90 includes a telescopic rod 91. The knife holder 81 is connected to the telescopic rod 91. The telescopic rod 91 telescopically moves to drive the cutting assembly 80 to move. Along the axial direction of the telescopic rod 91, the blocking member 100 and the protective member 83 are correspondingly arranged. A belt threading channel is formed between the blocking member 100 and the protective member 83. The sliding direction of the protective member 83 relative to the knife holder 81 is the same as the axial direction of the telescopic rod 91.

[0098] When the driving device 90 is in working state, the telescopic rod 91 can be extended or retracted to drive the cutting assembly 80 to switch between the initial station and the cutting station. The telescopic rod 91 has good linear motion accuracy, which is conducive to maintaining the precise movement direction of the cutting assembly 80, so as to ensure that the protective member 83 can accurately contact the blocking member 100, and at the same time ensure that the protective member 83 can slide smoothly relative to the knife seat 81 without being stuck.

[0099] In some examples, drive device 90 may include a pneumatic cylinder or a hydraulic cylinder.

[0100] In some examples, the axial direction of the telescopic rod 91 is the same as the vertical direction Z. The cutting assembly 80 is located above the telescopic rod 91 . The blocking member 100 is located above the protective member 83 .

[0101] The driving device 90 can drive the cutting assembly 80 to move up and down along the vertical direction Z through the telescopic rod 91. The cutting assembly 80 can perform a cutting action on the tape 300 from below the tape 300. In the process of the cutting assembly 80 moving upward to prepare for cutting the tape 300, when other objects (such as hands) accidentally appear at the protective member 83 that is not in contact with the blocking member 100 to block the protective member 83, the driving device 90 can cut off the power. At this time, the telescopic rod 91 can be retracted under the weight of the cutting assembly 80 itself to avoid the object at the protective member 83, effectively reducing the possibility that the driving device 90 continues to drive the cutting assembly 80, causing the blade 822 to be higher than the protective member 83 and causing cuts to the object.

[0102] In some examples, Fig.10 The partial structure of the tape cutting device 70 is schematically shown. Fig.10 As shown, the blade 822 of the cutting knife 82 is lower than the top surface 83a of the guard 83 facing the blocking member 100. The top surface 83a of the guard 83 is a plane. In the horizontal direction, the guard 83 is provided on one side of the blade 822, and there is a gap between the blade 822 and the guard 83.

[0103] After the driving device 90 drives the cutting assembly 80 to move a predetermined distance, the top surface 83a of the guard 83 can contact the blocking member 100, so that the blocking member 100 can block the movement of the guard 83. The top surface 83a of the guard 83 is a plane, which is conducive to ensuring that the contact area between the guard 83 and the blocking member 100 is large, so that the guard 83 is subjected to balanced force, and at the same time, it is conducive to reducing the component force generated between the guard 83 and the blocking member 100 in the horizontal direction, and reducing the possibility of the guard 83 and the blocking member 100 being dislocated after contact. There is a gap between the blade 822 and the guard 83, so that when the blade 822 and the guard 83 move relative to each other, it is not easy for friction to occur between the two, reducing the friction resistance between the two, and also reducing the possibility of the blade 822 scratching the guard 83.

[0104] For some examples, see Fig.10 As shown, the blocking member 100 may be a blocking plate. The blocking member 100 includes a horizontal plate 101 and a vertical plate 102. The two vertical plates 102 are both arranged on one side of the horizontal plate 101 facing the top surface 83a of the protective member 83. In the horizontal direction, the two vertical plates 102 are respectively arranged at two ends of the horizontal plate 101. The spacing between the vertical plate 102 and the top surface 83a is smaller than the spacing between the horizontal plate 101 and the top surface 83a. The recessed portion enclosed by the horizontal plate 101 and the two vertical plates 102 of the blocking member 100 forms at least a portion of the belt threading channel.

[0105] After the driving device 90 drives the cutting assembly 80 to move a predetermined distance, the protective member 83 contacts the two vertical plates 102 of the blocking member 100, so that the blocking member 100 can block the movement of the protective member 83. Two force points are formed between the two vertical plates 102 of the blocking member 100 and the protective member 83, so that the force balance of the protective member 83 can be ensured, and the protective member 83 and the blocking member 100 are ensured to be in a stable contact state. There is a gap between the protective member 83 and the horizontal plate 101, so that the protective member 83 and the horizontal plate 101 will not clamp the adhesive tape 300 passing through the tape passage.

[0106] In some achievable ways, Fig.11 Schematically shows a partial cross-sectional structure of the tape cutting device 70. Fig.11 As shown, the protective member 83 includes a protective plate 831 and a guide post 832 connected to each other. There is a gap between the protective plate 831 and the knife holder 81. The blade 822 of the cutting knife 82 is lower than the protective plate 831. The knife holder 81 includes a guide hole 811. The guide post 832 is slidably matched with the guide hole 811. The elastic member 84 is arranged in the guide hole 811. Along the axial direction of the guide hole 811, the blocking member 100 is correspondingly arranged with the protective plate 831.

[0107] The guide post 832 of the protective member 83 and the guide hole 811 of the knife seat 81 can play a positioning role with each other. When assembling the elastic member 84, the protective member 83 and the knife seat 81, the elastic member 84 can be placed in the guide hole 811 of the knife seat 81 first, and then the guide post 832 of the protective member 83 can be aligned and inserted into the guide hole 811, so as to facilitate the elastic member 84 and the protective member 83 to be quickly and accurately assembled with the knife seat 81. The way in which the elastic member 84 is arranged in the guide hole 811 makes it difficult for the elastic member 84 to fall out of the knife seat 81.

[0108] In some examples, the elastic member 84 may be a coil spring. The guide column 832 of the protective member 83 is a circular column. The guide hole 811 of the knife seat 81 is a circular hole.

[0109] In some examples, the cutting assembly 80 further includes a limiting guide sleeve 110. At least a portion of the limiting guide sleeve 110 is located in the guide hole 811 of the knife seat 81. The guide column 832 includes a column 832a and a limiting cap 832b. The protective plate 831 is connected to the column 832a. The limiting guide sleeve 110 is sleeved on the column 832a. The diameter of the center hole of the limiting guide sleeve 110 is smaller than the diameter of the limiting cap 832b. An elastic member 84 is provided between the limiting cap 832b and the knife seat 81.

[0110] The limiting guide sleeve 110 can limit the protective member 83, reducing the possibility that the guide post 832 of the protective member 83 will withdraw from the guide hole 811 and cause the protective member 83 to separate from the knife seat 81. After the protective member 83, the knife seat 81 and the limiting guide sleeve 110 are assembled, the limiting cap 832b of the guide post 832 is located in the guide hole 811 and can abut against the limiting guide sleeve 110, so that the guide post 832 will not withdraw from the limiting guide sleeve 110 and the guide hole 811.

[0111] During the movement of the cutting assembly 80 from the initial station to the cutting station, after the protective member 83 contacts the blocking member 100 and slides relative to the knife seat 81, the guide column 832 slides in the guide hole 811, and the limiting cap 832b of the guide column 832 is out of contact with the limiting guide sleeve 110. At the same time, the limiting cap 832b compresses the elastic member 84 to allow the elastic member 84 to accumulate elastic potential energy.

[0112] When the cutting assembly 80 moves from the cutting station to the initial station, the elastic member 84 releases elastic potential energy to push the guide post 832 to slide in the guide hole 811. When the limiting cap 832b of the guide post 832 contacts the limiting guide sleeve 110 again, the protective member 83 moves synchronously with the knife holder 81, and the protective plate 831 is out of contact with the blocking member 100.

[0113] In some examples, Fig.12 The partial structure of the tape cutting device 70 is schematically shown. Fig.12As shown, the cutting assembly 80 further includes a detection sensor 120 and an induction trigger 130. The detection sensor 120 is connected to the knife holder 81. The induction trigger 130 is connected to the protective plate 831. When the protective plate 831 moves relative to the knife holder 81, the induction trigger 130 is used to trigger the detection sensor 120.

[0114] When the driving device 90 drives the cutting assembly 80 to move from the initial station to the cutting station, the cutting assembly 80 needs to move a predetermined stroke before the protective member 83 can contact the blocking member 100. If the tape cutting device 70 detects that the actual stroke of the cutting assembly 80 is less than the predetermined stroke, and other objects (such as hands) accidentally appear at the protective member 83 and press the protective member 83 to slide relative to the knife seat 81, the protective plate 831 can drive the inductive trigger member 130 to move synchronously, so that the inductive trigger member 130 moves relative to the detection sensor 120. The inductive trigger member 130 can trigger the detection sensor 120, so that the tape cutting device 70 cuts off the power supply of the driving device 90, so that the driving device 90 stops driving the cutting assembly 80 to continue to move, effectively reducing the possibility of the cutting knife 82 accidentally damaging the object appearing at the protective member 83.

[0115] In some examples, the driving device 90 can drive the cutting assembly 80 to move up and down along the vertical direction Z through the telescopic rod 91. If the tape cutting device 70 detects that the actual movement of the cutting assembly 80 is less than the predetermined movement, and other objects (such as hands) unexpectedly appear at the protective member 83 and press the protective member 83 to slide relative to the knife seat 81, the protective plate 831 can drive the inductive trigger member 130 to move synchronously, so that the inductive trigger member 130 moves relative to the detection sensor 120. The inductive trigger member 130 can trigger the detection sensor 120, so that the tape cutting device 70 cuts off the power supply of the driving device 90, and the telescopic rod 91 can retract under the action of the gravity of the cutting assembly 80 itself to avoid the object at the protective member 83, effectively reducing the possibility that the driving device 90 continues to drive the cutting assembly 80, causing the blade 822 to be higher than the protective member 83 and causing cuts to the object.

[0116] Exemplarily, the driving device 90 may include a pneumatic cylinder or a hydraulic cylinder. The inductive trigger 130 may trigger the detection sensor 120, so that the tape cutting device 70 cuts off the power supply of the driving device 90, so that the driving device 90 can be depressurized, and the telescopic rod 91 can be retracted under the weight of the cutting assembly 80 itself.

[0117] In some examples, if the tape cutting device 70 detects that the actual movement stroke of the cutting component 80 is equal to the predetermined movement stroke, and determines that the protective member 83 is in contact with the blocking member 100, the detection sensor 120 can be powered off at this time, so that the blocking member 100 presses the protective member 83 to slide relative to the knife seat 81, so that when the sensing trigger member 130 moves relative to the detection sensor 120, the sensing trigger member 130 will not trigger the detection sensor 120, and the tape cutting device 70 will not cut off the power supply of the drive device 90.

[0118] In some examples, the detection sensor 120 is a proximity switch or a photoelectric sensor. The detection sensor 120 has high detection accuracy and high sensitivity, which is conducive to improving the detection accuracy of the detection sensor 120 and also conducive to shortening the detection reaction time. Exemplarily, the induction trigger member 130 is a sheet structure. In the horizontal direction, the induction trigger member 130 is located on one side of the detection sensor 120.

[0119] In some examples, the cutting assembly 80 includes a mounting bracket. The mounting bracket is connected to the knife holder 81. The detection sensor 120 is disposed on the mounting bracket.

[0120] In some examples, the induction trigger 130 and the detection sensor 120 are disposed on the side of the protection plate 831 facing away from the cutting knife 82 .

[0121] In some examples, the number of guide posts 832 is more than two. In the horizontal direction, more than two guide posts 832 are arranged at intervals. One protective plate 831 is connected to more than two guide posts 832. The number of guide holes 811 and the number of guide posts 832 are arranged one by one.

[0122] The way in which a protective plate 831 is slidably connected to the knife seat 81 through more than two guide pillars 832 is beneficial to improving the force balance of the protective plate 831, ensuring that the protective member 83 can slide smoothly relative to the knife seat 81 without being stuck.

[0123] Exemplarily, the number of elastic members 84 , the number of limiting guide sleeves 110 , the number of guide holes 811 , and the number of guide pillars 832 are arranged in a one-to-one correspondence.

[0124] Exemplarily, there are two guide posts 832. The two opposite ends of the protective plate 831 are respectively connected to the guide posts 832. The induction trigger member 130 is connected to the middle area of ​​the protective plate 831. The connection area between the induction trigger member 130 and the protective plate 831 is located between the two guide posts 832.

[0125] Exemplarily, the protection plate 831 is detachably connected to each guide column 832. For example, the protection plate 831 is detachably connected to each guide column 832 via fasteners such as screws.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A tape cutting device, characterized in that: include: A cutting assembly, comprising a knife seat, a cutting knife, a protective member and an elastic member, wherein the cutting knife comprises a knife body and a blade, wherein the knife body is connected to the knife seat, the protective member is slidably connected to the knife seat, the elastic member is arranged between the protective member and the knife seat, the protective member is arranged on at least one side of the blade, and the blade is lower than the protective member; A driving device, the knife seat is connected to the driving device; A blocking member is arranged corresponding to the protective member, the blocking member and the protective member are arranged at an interval, a belt threading channel is formed between the blocking member and the protective member, and the driving device is used to drive the cutting assembly to move, and the protective member approaches or moves away from the blocking member.

2. The tape cutting device according to claim 1, characterized in that: The driving device includes a telescopic rod, the knife holder is connected to the telescopic rod, the telescopic rod telescopic movement drives the cutting assembly to move, along the axial direction of the telescopic rod, the blocking member and the protective member are correspondingly arranged, and the sliding direction of the protective member relative to the knife holder is the same as the axial direction of the telescopic rod.

3. The tape cutting device according to claim 2, characterized in that: The axial direction of the telescopic rod is the same as the vertical direction, the cutting assembly is located above the telescopic rod, and the blocking member is located above the protective member.

4. The tape cutting device according to claim 3, characterized in that: The blade is lower than the top surface of the protective member facing the blocking member, the top surface is a plane, and the protective member is arranged on one side of the blade in the horizontal direction, with a gap between the blade and the protective member.

5. The tape cutting device according to claim 4, characterized in that: The blocking member is a blocking plate, which includes a horizontal plate and a vertical plate. The two vertical plates are arranged on the side of the horizontal plate facing the top surface. The distance between the vertical plate and the top surface is smaller than the distance between the horizontal plate and the top surface. The recess formed by the horizontal plate and the two vertical plates forms at least part of the belt threading channel.

6. The adhesive tape cutting device according to any one of claims 1 to 5, characterized in that: The protective member includes a connected protective plate and a guide column, there is a distance between the protective plate and the knife seat, the blade is lower than the protective plate, the knife seat includes a guide hole, the guide column is slidably matched with the guide hole, the elastic member is arranged in the guide hole, and along the axial direction of the guide hole, the blocking member is correspondingly arranged with the protective plate.

7. The tape cutting device according to claim 6, characterized in that: The cutting assembly also includes a limiting guide sleeve, at least part of which is located in the guide hole, the guide column includes a column body and a limiting cap, the protective plate is connected to the column body, the limiting guide sleeve is sleeved on the column body, the diameter of the center hole of the limiting guide sleeve is smaller than the diameter of the limiting cap, and the elastic member is arranged between the limiting cap and the knife seat.

8. The tape cutting device according to claim 6, characterized in that: The cutting assembly further comprises a detection sensor and an induction triggering member, wherein the detection sensor is connected to the knife holder, and the induction triggering member is connected to the protective plate. When the protective plate moves relative to the knife holder, the induction triggering member is used to trigger the detection sensor.

9. The tape cutting device according to claim 8, characterized in that: The detection sensor is a proximity switch or a photoelectric sensor.

10. The tape cutting device according to claim 6, characterized in that: The number of the guide pillars is more than two, one protective plate is connected to more than two guide pillars, and the number of the guide holes is arranged in one-to-one correspondence with the number of the guide pillars.

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